diff --git a/asterix-algebra/pom.xml b/asterix-algebra/pom.xml
index b60dc3b..f156bbd 100644
--- a/asterix-algebra/pom.xml
+++ b/asterix-algebra/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-algebra</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -37,6 +37,41 @@
 				</executions>
 			</plugin>
 		</plugins>
+		<pluginManagement>
+			<plugins>
+				<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
+				<plugin>
+					<groupId>org.eclipse.m2e</groupId>
+					<artifactId>lifecycle-mapping</artifactId>
+					<version>1.0.0</version>
+					<configuration>
+						<lifecycleMappingMetadata>
+							<pluginExecutions>
+								<pluginExecution>
+									<pluginExecutionFilter>
+										<groupId>
+											org.codehaus.mojo
+										</groupId>
+										<artifactId>
+											javacc-maven-plugin
+										</artifactId>
+										<versionRange>
+											[2.6,)
+										</versionRange>
+										<goals>
+											<goal>javacc</goal>
+										</goals>
+									</pluginExecutionFilter>
+									<action>
+										<ignore></ignore>
+									</action>
+								</pluginExecution>
+							</pluginExecutions>
+						</lifecycleMappingMetadata>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 	</build>
 
 	<dependencies>
@@ -60,9 +95,7 @@
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-algebricks-compiler</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.json</groupId>
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
index c37ad1b..95e71ff 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
@@ -1,13 +1,13 @@
 package edu.uci.ics.asterix.algebra.base;
 
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
@@ -20,15 +20,16 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionVisitor;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class LogicalExpressionDeepCopyVisitor implements ILogicalExpressionVisitor<ILogicalExpression, Void> {
     private final Counter counter;
-    private final HashMap<LogicalVariable, LogicalVariable> variableMapping;
+    private final Map<LogicalVariable, LogicalVariable> inVarMapping;
+    private final Map<LogicalVariable, LogicalVariable> outVarMapping;
 
-    public LogicalExpressionDeepCopyVisitor(Counter counter, HashMap<LogicalVariable, LogicalVariable> variableMapping) {
+    public LogicalExpressionDeepCopyVisitor(Counter counter, Map<LogicalVariable, LogicalVariable> inVarMapping, Map<LogicalVariable, LogicalVariable> variableMapping) {
         this.counter = counter;
-        this.variableMapping = variableMapping;
+        this.inVarMapping = inVarMapping;
+        this.outVarMapping = variableMapping;
     }
 
     public ILogicalExpression deepCopy(ILogicalExpression expr) throws AlgebricksException {
@@ -102,11 +103,16 @@
     public ILogicalExpression visitVariableReferenceExpression(VariableReferenceExpression expr, Void arg)
             throws AlgebricksException {
         LogicalVariable var = expr.getVariableReference();
-        LogicalVariable varCopy = variableMapping.get(var);
+        LogicalVariable givenVarReplacement = inVarMapping.get(var);
+        if (givenVarReplacement != null) {
+            outVarMapping.put(var, givenVarReplacement);
+            return new VariableReferenceExpression(givenVarReplacement);
+        }
+        LogicalVariable varCopy = outVarMapping.get(var);
         if (varCopy == null) {
             counter.inc();
             varCopy = new LogicalVariable(counter.get());
-            variableMapping.put(var, varCopy);
+            outVarMapping.put(var, varCopy);
         }
         return new VariableReferenceExpression(varCopy);
     }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalOperatorDeepCopyVisitor.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalOperatorDeepCopyVisitor.java
index 50994ab..d8477f1 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalOperatorDeepCopyVisitor.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalOperatorDeepCopyVisitor.java
@@ -1,6 +1,7 @@
 package edu.uci.ics.asterix.algebra.base;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -8,6 +9,8 @@
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
@@ -19,8 +22,10 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DieOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistinctOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistributeResultOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.EmptyTupleSourceOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ExchangeOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ExtensionOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IndexInsertDeleteOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InnerJoinOperator;
@@ -46,20 +51,34 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.plan.ALogicalPlanImpl;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalOperatorVisitor;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-
-
 
 public class LogicalOperatorDeepCopyVisitor implements ILogicalOperatorVisitor<ILogicalOperator, ILogicalOperator> {
     private final Counter counter;
     private final LogicalExpressionDeepCopyVisitor exprDeepCopyVisitor;
 
-    private final HashMap<LogicalVariable, LogicalVariable> variableMapping = new HashMap<LogicalVariable, LogicalVariable>();
+    // Key: Variable in the original plan. Value: New variable replacing the original one in the copied plan.
+    private final Map<LogicalVariable, LogicalVariable> outVarMapping = new HashMap<LogicalVariable, LogicalVariable>();
+
+    // Key: Variable in the original plan. Value: Variable with which to replace original variable in the plan copy.
+    private final Map<LogicalVariable, LogicalVariable> inVarMapping;
 
     public LogicalOperatorDeepCopyVisitor(Counter counter) {
         this.counter = counter;
-        exprDeepCopyVisitor = new LogicalExpressionDeepCopyVisitor(counter, variableMapping);
+        this.inVarMapping = Collections.emptyMap();
+        exprDeepCopyVisitor = new LogicalExpressionDeepCopyVisitor(counter, inVarMapping, outVarMapping);
+    }
+
+    /**
+     * @param counter
+     *            Starting variable counter.
+     * @param inVarMapping
+     *            Variable mapping keyed by variables in the original plan.
+     *            Those variables are replaced by their corresponding value in the map in the copied plan.
+     */
+    public LogicalOperatorDeepCopyVisitor(Counter counter, Map<LogicalVariable, LogicalVariable> inVarMapping) {
+        this.counter = counter;
+        this.inVarMapping = inVarMapping;
+        exprDeepCopyVisitor = new LogicalExpressionDeepCopyVisitor(counter, inVarMapping, outVarMapping);
     }
 
     private void copyAnnotations(ILogicalOperator src, ILogicalOperator dest) {
@@ -133,11 +152,16 @@
         if (var == null) {
             return null;
         }
-        LogicalVariable varCopy = variableMapping.get(var);
+        LogicalVariable givenVarReplacement = inVarMapping.get(var);
+        if (givenVarReplacement != null) {
+            outVarMapping.put(var, givenVarReplacement);
+            return givenVarReplacement;
+        }
+        LogicalVariable varCopy = outVarMapping.get(var);
         if (varCopy == null) {
             counter.inc();
             varCopy = new LogicalVariable(counter.get());
-            variableMapping.put(var, varCopy);
+            outVarMapping.put(var, varCopy);
         }
         return varCopy;
     }
@@ -163,16 +187,16 @@
     }
 
     public void reset() {
-        variableMapping.clear();
+        outVarMapping.clear();
     }
 
     public void updatePrimaryKeys(IOptimizationContext context) {
-        for (Map.Entry<LogicalVariable, LogicalVariable> entry : variableMapping.entrySet()) {
+        for (Map.Entry<LogicalVariable, LogicalVariable> entry : outVarMapping.entrySet()) {
             List<LogicalVariable> primaryKey = context.findPrimaryKey(entry.getKey());
             if (primaryKey != null) {
                 List<LogicalVariable> head = new ArrayList<LogicalVariable>();
                 for (LogicalVariable variable : primaryKey) {
-                    head.add(variableMapping.get(variable));
+                    head.add(outVarMapping.get(variable));
                 }
                 List<LogicalVariable> tail = new ArrayList<LogicalVariable>(1);
                 tail.add(entry.getValue());
@@ -182,7 +206,7 @@
     }
 
     public LogicalVariable varCopy(LogicalVariable var) throws AlgebricksException {
-        return variableMapping.get(var);
+        return outVarMapping.get(var);
     }
 
     @Override
@@ -192,6 +216,7 @@
                 exprDeepCopyVisitor.deepCopyExpressionReferenceList(op.getExpressions()));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -201,6 +226,7 @@
                 exprDeepCopyVisitor.deepCopyExpressionReferenceList(op.getExpressions()));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -211,6 +237,7 @@
                 op.getDataSource());
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -221,7 +248,9 @@
 
     @Override
     public ILogicalOperator visitEmptyTupleSourceOperator(EmptyTupleSourceOperator op, ILogicalOperator arg) {
-        return new EmptyTupleSourceOperator();
+        EmptyTupleSourceOperator opCopy = new EmptyTupleSourceOperator();
+        opCopy.setExecutionMode(op.getExecutionMode());
+        return opCopy;
     }
 
     @Override
@@ -241,6 +270,7 @@
         deepCopyPlanList(op.getNestedPlans(), nestedPlansCopy, opCopy);
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -251,6 +281,7 @@
                 .getCondition()), deepCopyOperatorReference(op.getInputs().get(0), null), deepCopyOperatorReference(op
                 .getInputs().get(1), null));
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -275,6 +306,7 @@
         NestedTupleSourceOperator opCopy = new NestedTupleSourceOperator(new MutableObject<ILogicalOperator>(arg));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -283,6 +315,7 @@
         OrderOperator opCopy = new OrderOperator(deepCopyOrderExpressionReferencePairList(op.getOrderExpressions()));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -296,6 +329,7 @@
         ProjectOperator opCopy = new ProjectOperator(deepCopyVariableList(op.getVariables()));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -320,6 +354,7 @@
         SelectOperator opCopy = new SelectOperator(exprDeepCopyVisitor.deepCopyExpressionReference(op.getCondition()));
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -331,6 +366,7 @@
         deepCopyPlanList(op.getNestedPlans(), nestedPlansCopy, opCopy);
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -351,6 +387,7 @@
                 deepCopyVariable(op.getPositionalVariable()), op.getPositionalVariableType());
         deepCopyInputs(op, opCopy, arg);
         copyAnnotations(op, opCopy);
+        opCopy.setExecutionMode(op.getExecutionMode());
         return opCopy;
     }
 
@@ -360,6 +397,11 @@
     }
 
     @Override
+    public ILogicalOperator visitDistributeResultOperator(DistributeResultOperator op, ILogicalOperator arg) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
     public ILogicalOperator visitWriteResultOperator(WriteResultOperator op, ILogicalOperator arg) {
         throw new UnsupportedOperationException();
     }
@@ -378,4 +420,14 @@
     public ILogicalOperator visitSinkOperator(SinkOperator op, ILogicalOperator arg) {
         throw new UnsupportedOperationException();
     }
+
+    @Override
+    public ILogicalOperator visitExtensionOperator(ExtensionOperator op, ILogicalOperator arg)
+            throws AlgebricksException {
+        throw new UnsupportedOperationException();
+    }
+
+    public Map<LogicalVariable, LogicalVariable> getVariableMapping() {
+        return outVarMapping;
+    }
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/CommitOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/CommitOperator.java
new file mode 100644
index 0000000..98774d2
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/CommitOperator.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.algebra.operators;
+
+import java.util.Collection;
+import java.util.List;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractExtensibleLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorExtension;
+import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;
+
+public class CommitOperator extends AbstractExtensibleLogicalOperator {
+
+    private final List<LogicalVariable> primaryKeyLogicalVars;
+
+    public CommitOperator(List<LogicalVariable> primaryKeyLogicalVars) {
+        this.primaryKeyLogicalVars = primaryKeyLogicalVars;
+    }
+
+    @Override
+    public boolean isMap() {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public IOperatorExtension newInstance() {
+        return new CommitOperator(primaryKeyLogicalVars);
+    }
+
+    @Override
+    public boolean acceptExpressionTransform(ILogicalExpressionReferenceTransform transform) throws AlgebricksException {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return "commit";
+    }
+
+    @Override
+    public void getUsedVariables(Collection<LogicalVariable> usedVars) {
+        usedVars.addAll(primaryKeyLogicalVars);
+    }
+
+    @Override
+    public void getProducedVariables(Collection<LogicalVariable> producedVars) {
+        // No produced variables.
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/BTreeSearchPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/BTreeSearchPOperator.java
index 385d443..efe01a5 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/BTreeSearchPOperator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/BTreeSearchPOperator.java
@@ -1,38 +1,70 @@
 package edu.uci.ics.asterix.algebra.operators.physical;
 
+import java.util.ArrayList;
+import java.util.List;
 
-import org.apache.commons.lang3.mutable.Mutable;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.functions.FunctionArgumentsConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.optimizer.rules.am.BTreeJobGenParams;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.ListSet;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractScanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.BroadcastPartitioningProperty;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningRequirementsCoordinator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.LocalOrderProperty;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.OrderColumn;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.PhysicalRequirements;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.UnorderedPartitionedProperty;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 
-public class BTreeSearchPOperator extends TreeSearchPOperator {
+/**
+ * Contributes the runtime operator for an unnest-map representing a BTree search.
+ */
+public class BTreeSearchPOperator extends IndexSearchPOperator {
 
-    public BTreeSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx) {
-        super(idx);
+    private final List<LogicalVariable> lowKeyVarList;
+    private final List<LogicalVariable> highKeyVarList;
+    private final boolean isPrimaryIndex;
+    private final boolean isEqCondition;
+    private Object implConfig;
+
+    public BTreeSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx, boolean requiresBroadcast,
+            boolean isPrimaryIndex, boolean isEqCondition, List<LogicalVariable> lowKeyVarList,
+            List<LogicalVariable> highKeyVarList) {
+        super(idx, requiresBroadcast);
+        this.isPrimaryIndex = isPrimaryIndex;
+        this.isEqCondition = isEqCondition;
+        this.lowKeyVarList = lowKeyVarList;
+        this.highKeyVarList = highKeyVarList;
+    }
+
+    public void setImplConfig(Object implConfig) {
+        this.implConfig = implConfig;
+    }
+
+    public Object getImplConfig() {
+        return implConfig;
     }
 
     @Override
@@ -46,68 +78,61 @@
             throws AlgebricksException {
         UnnestMapOperator unnestMap = (UnnestMapOperator) op;
         ILogicalExpression unnestExpr = unnestMap.getExpressionRef().getValue();
-
-        if (unnestExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr;
-            FunctionIdentifier fid = f.getFunctionIdentifier();
-            if (fid.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
-                try {
-                    contributeBtreeSearch(builder, context, unnestMap, opSchema, inputSchemas);
-                } catch (AlgebricksException e) {
-                    throw new AlgebricksException(e);
-                }
-                return;
-            }
+        if (unnestExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            throw new IllegalStateException();
         }
-        throw new IllegalStateException();
-    }
-
-    private void contributeBtreeSearch(IHyracksJobBuilder builder, JobGenContext context, UnnestMapOperator unnestMap,
-            IOperatorSchema opSchema, IOperatorSchema[] inputSchemas) throws AlgebricksException, AlgebricksException {
-        Mutable<ILogicalExpression> unnestExpr = unnestMap.getExpressionRef();
-        AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr.getValue();
-
-        String idxType = getStringArgument(f, 1);
-        if (idxType != FunctionArgumentsConstants.BTREE_INDEX) {
-            throw new NotImplementedException(idxType + " indexes are not implemented.");
+        AbstractFunctionCallExpression unnestFuncExpr = (AbstractFunctionCallExpression) unnestExpr;
+        FunctionIdentifier funcIdent = unnestFuncExpr.getFunctionIdentifier();
+        if (!funcIdent.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
+            return;
         }
-        String idxName = getStringArgument(f, 0);
-        String datasetName = getStringArgument(f, 2);
-
-        Pair<int[], Integer> keysLeft = getKeys(f, 3, inputSchemas);
-        Pair<int[], Integer> keysRight = getKeys(f, 4 + keysLeft.second, inputSchemas);
-
-        int p = 5 + keysLeft.second + keysRight.second;
-        boolean loInclusive = isTrue((ConstantExpression) f.getArguments().get(p).getValue());
-        boolean hiInclusive = isTrue((ConstantExpression) f.getArguments().get(p + 1).getValue());
-        buildBtreeSearch(builder, context, unnestMap, opSchema, datasetName, idxName, keysLeft.first, keysRight.first,
-                loInclusive, hiInclusive);
-    }
-
-    private boolean isTrue(ConstantExpression k) {
-        return k.getValue().isTrue();
-    }
-
-    private static void buildBtreeSearch(IHyracksJobBuilder builder, JobGenContext context, AbstractScanOperator scan,
-            IOperatorSchema opSchema, String datasetName, String indexName, int[] lowKeyFields, int[] highKeyFields,
-            boolean lowKeyInclusive, boolean highKeyInclusive) throws AlgebricksException, AlgebricksException {
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+        BTreeJobGenParams jobGenParams = new BTreeJobGenParams();
+        jobGenParams.readFromFuncArgs(unnestFuncExpr.getArguments());
+        int[] lowKeyIndexes = getKeyIndexes(jobGenParams.getLowKeyVarList(), inputSchemas);
+        int[] highKeyIndexes = getKeyIndexes(jobGenParams.getHighKeyVarList(), inputSchemas);
+        AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+        Dataset dataset = metadataProvider.findDataset(jobGenParams.getDataverseName(), jobGenParams.getDatasetName());
+        IVariableTypeEnvironment typeEnv = context.getTypeEnvironment(op);
+        List<LogicalVariable> outputVars = unnestMap.getVariables();
+        if (jobGenParams.getRetainInput()) {
+            outputVars = new ArrayList<LogicalVariable>();
+            VariableUtilities.getLiveVariables(unnestMap, outputVars);
         }
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AlgebricksException("Trying to run btree search over external dataset (" + datasetName + ").");
-        }
-        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> btreeSearch = AqlMetadataProvider.buildBtreeRuntime(
-                metadata, context, builder.getJobSpec(), datasetName, adecl, indexName, lowKeyFields, highKeyFields,
-                lowKeyInclusive, highKeyInclusive);
-        builder.contributeHyracksOperator(scan, btreeSearch.first);
+        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> btreeSearch = metadataProvider.buildBtreeRuntime(
+                builder.getJobSpec(), outputVars, opSchema, typeEnv, context, jobGenParams.getRetainInput(), dataset,
+                jobGenParams.getIndexName(), lowKeyIndexes, highKeyIndexes, jobGenParams.isLowKeyInclusive(),
+                jobGenParams.isHighKeyInclusive(), implConfig);
+        builder.contributeHyracksOperator(unnestMap, btreeSearch.first);
         builder.contributeAlgebricksPartitionConstraint(btreeSearch.first, btreeSearch.second);
 
-        ILogicalOperator srcExchange = scan.getInputs().get(0).getValue();
-        builder.contributeGraphEdge(srcExchange, 0, scan, 0);
+        ILogicalOperator srcExchange = unnestMap.getInputs().get(0).getValue();
+        builder.contributeGraphEdge(srcExchange, 0, unnestMap, 0);
     }
 
+    public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op,
+            IPhysicalPropertiesVector reqdByParent) {
+        if (requiresBroadcast) {
+            // For primary indexes optimizing an equality condition we can reduce the broadcast requirement to hash partitioning.
+            if (isPrimaryIndex && isEqCondition) {
+                StructuralPropertiesVector[] pv = new StructuralPropertiesVector[1];
+                ListSet<LogicalVariable> searchKeyVars = new ListSet<LogicalVariable>();
+                searchKeyVars.addAll(lowKeyVarList);
+                searchKeyVars.addAll(highKeyVarList);
+                // Also, add a local sorting property to enforce a sort before the primary-index operator.
+                List<ILocalStructuralProperty> propsLocal = new ArrayList<ILocalStructuralProperty>();
+                for (LogicalVariable orderVar : searchKeyVars) {
+                    propsLocal.add(new LocalOrderProperty(new OrderColumn(orderVar, OrderKind.ASC)));
+                }
+                pv[0] = new StructuralPropertiesVector(new UnorderedPartitionedProperty(searchKeyVars, null),
+                        propsLocal);
+                return new PhysicalRequirements(pv, IPartitioningRequirementsCoordinator.NO_COORDINATION);
+            } else {
+                StructuralPropertiesVector[] pv = new StructuralPropertiesVector[1];
+                pv[0] = new StructuralPropertiesVector(new BroadcastPartitioningProperty(null), null);
+                return new PhysicalRequirements(pv, IPartitioningRequirementsCoordinator.NO_COORDINATION);
+            }
+        } else {
+            return super.getRequiredPropertiesForChildren(op, reqdByParent);
+        }
+    }
 }
\ No newline at end of file
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java
new file mode 100644
index 0000000..ece3db6
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.algebra.operators.physical;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.AbstractPhysicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.PhysicalRequirements;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenHelper;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+
+public class CommitPOperator extends AbstractPhysicalOperator {
+
+    private final List<LogicalVariable> primaryKeyLogicalVars;
+    private final JobId jobId;
+    private final int datasetId;
+    private final boolean isWriteTransaction;
+
+    public CommitPOperator(JobId jobId, int datasetId, List<LogicalVariable> primaryKeyLogicalVars,
+            boolean isWriteTransaction) {
+        this.jobId = jobId;
+        this.datasetId = datasetId;
+        this.primaryKeyLogicalVars = primaryKeyLogicalVars;
+        this.isWriteTransaction = isWriteTransaction;
+    }
+
+    @Override
+    public PhysicalOperatorTag getOperatorTag() {
+        return PhysicalOperatorTag.EXTENSION_OPERATOR;
+    }
+
+    @Override
+    public String toString() {
+        return "COMMIT";
+    }
+
+    @Override
+    public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op,
+            IPhysicalPropertiesVector reqdByParent) {
+        return emptyUnaryRequirements();
+    }
+
+    @Override
+    public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context)
+            throws AlgebricksException {
+        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op.getInputs().get(0).getValue();
+        deliveredProperties = (StructuralPropertiesVector) op2.getDeliveredPhysicalProperties().clone();
+    }
+
+    @Override
+    public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op,
+            IOperatorSchema propagatedSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema)
+            throws AlgebricksException {
+
+        RecordDescriptor recDesc = JobGenHelper.mkRecordDescriptor(context.getTypeEnvironment(op), propagatedSchema,
+                context);
+        int[] primaryKeyFields = JobGenHelper.variablesToFieldIndexes(primaryKeyLogicalVars, inputSchemas[0]);
+        CommitRuntimeFactory runtime = new CommitRuntimeFactory(jobId, datasetId, primaryKeyFields, isWriteTransaction);
+        builder.contributeMicroOperator(op, runtime, recDesc);
+        ILogicalOperator src = op.getInputs().get(0).getValue();
+        builder.contributeGraphEdge(src, 0, op, 0);
+    }
+
+    @Override
+    public boolean isMicroOperator() {
+        return true;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java
new file mode 100644
index 0000000..8533e74
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.algebra.operators.physical;
+
+import java.nio.ByteBuffer;
+
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntime;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.FrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.MurmurHash128Bit;
+
+public class CommitRuntime implements IPushRuntime {
+    
+    private final static long SEED = 0L;
+
+    private final IHyracksTaskContext hyracksTaskCtx;
+    private final ITransactionManager transactionManager;
+    private final JobId jobId;
+    private final DatasetId datasetId;
+    private final int[] primaryKeyFields;
+    private final boolean isWriteTransaction;
+    private final long[] longHashes; 
+
+    private TransactionContext transactionContext;
+    private RecordDescriptor inputRecordDesc;
+    private FrameTupleAccessor frameTupleAccessor;
+    private FrameTupleReference frameTupleReference;
+
+    public CommitRuntime(IHyracksTaskContext ctx, JobId jobId, int datasetId, int[] primaryKeyFields,
+            boolean isWriteTransaction) {
+        this.hyracksTaskCtx = ctx;
+        AsterixAppRuntimeContext runtimeCtx = (AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
+                .getApplicationObject();
+        this.transactionManager = runtimeCtx.getTransactionSubsystem().getTransactionManager();
+        this.jobId = jobId;
+        this.datasetId = new DatasetId(datasetId);
+        this.primaryKeyFields = primaryKeyFields;
+        this.frameTupleReference = new FrameTupleReference();
+        this.isWriteTransaction = isWriteTransaction;
+        this.longHashes= new long[2];
+    }
+
+    @Override
+    public void open() throws HyracksDataException {
+        try {
+            transactionContext = transactionManager.getTransactionContext(jobId);
+            transactionContext.setTransactionType(isWriteTransaction ? TransactionType.READ_WRITE
+                    : TransactionType.READ);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
+        int pkHash = 0;
+        frameTupleAccessor.reset(buffer);
+        int nTuple = frameTupleAccessor.getTupleCount();
+        for (int t = 0; t < nTuple; t++) {
+            frameTupleReference.reset(frameTupleAccessor, t);
+            pkHash = computePrimaryKeyHashValue(frameTupleReference, primaryKeyFields);
+            try {
+                transactionManager.commitTransaction(transactionContext, datasetId, pkHash);
+            } catch (ACIDException e) {
+                throw new HyracksDataException(e);
+            }
+        }
+    }
+    
+    private int computePrimaryKeyHashValue(ITupleReference tuple, int[] primaryKeyFields) {
+        MurmurHash128Bit.hash3_x64_128(tuple, primaryKeyFields, SEED, longHashes);
+        return Math.abs((int) longHashes[0]); 
+    }
+
+    @Override
+    public void fail() throws HyracksDataException {
+        // TODO Auto-generated method stub
+
+    }
+
+    @Override
+    public void close() throws HyracksDataException {
+        // TODO Auto-generated method stub
+    }
+
+    @Override
+    public void setFrameWriter(int index, IFrameWriter writer, RecordDescriptor recordDesc) {
+        throw new IllegalStateException();
+    }
+
+    @Override
+    public void setInputRecordDescriptor(int index, RecordDescriptor recordDescriptor) {
+        this.inputRecordDesc = recordDescriptor;
+        this.frameTupleAccessor = new FrameTupleAccessor(hyracksTaskCtx.getFrameSize(), recordDescriptor);
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java
new file mode 100644
index 0000000..f3b6526
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.algebra.operators.physical;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntime;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public class CommitRuntimeFactory implements IPushRuntimeFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private final JobId jobId;
+    private final int datasetId;
+    private final int[] primaryKeyFields;
+    private final boolean isWriteTransaction;
+
+    public CommitRuntimeFactory(JobId jobId, int datasetId, int[] primaryKeyFields, boolean isWriteTransaction) {
+        this.jobId = jobId;
+        this.datasetId = datasetId;
+        this.primaryKeyFields = primaryKeyFields;
+        this.isWriteTransaction = isWriteTransaction;
+    }
+
+    @Override
+    public String toString() {
+        return "commit";
+    }
+
+    @Override
+    public IPushRuntime createPushRuntime(IHyracksTaskContext ctx) throws AlgebricksException {
+        return new CommitRuntime(ctx, jobId, datasetId, primaryKeyFields, isWriteTransaction);
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java
new file mode 100644
index 0000000..f6c926b
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java
@@ -0,0 +1,68 @@
+package edu.uci.ics.asterix.algebra.operators.physical;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.AbstractScanPOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.BroadcastPartitioningProperty;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningRequirementsCoordinator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.PhysicalRequirements;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
+
+/**
+ * Class that embodies the commonalities between access method physical operators.
+ */
+public abstract class IndexSearchPOperator extends AbstractScanPOperator {
+
+    protected final IDataSourceIndex<String, AqlSourceId> idx;
+    protected final boolean requiresBroadcast;
+
+    public IndexSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx, boolean requiresBroadcast) {
+        this.idx = idx;
+        this.requiresBroadcast = requiresBroadcast;
+    }
+
+    @Override
+    public boolean isMicroOperator() {
+        return false;
+    }
+
+    @Override
+    public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) {
+        IDataSource<?> ds = idx.getDataSource();
+        IDataSourcePropertiesProvider dspp = ds.getPropertiesProvider();
+        AbstractScanOperator as = (AbstractScanOperator) op;
+        deliveredProperties = dspp.computePropertiesVector(as.getVariables());
+    }
+
+    protected int[] getKeyIndexes(List<LogicalVariable> keyVarList, IOperatorSchema[] inputSchemas) {
+        if (keyVarList == null) {
+            return null;
+        }
+        int[] keyIndexes = new int[keyVarList.size()];
+        for (int i = 0; i < keyVarList.size(); i++) {
+            keyIndexes[i] = inputSchemas[0].findVariable(keyVarList.get(i));
+        }
+        return keyIndexes;
+    }
+    
+    public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op,
+            IPhysicalPropertiesVector reqdByParent) {
+        if (requiresBroadcast) {
+            StructuralPropertiesVector[] pv = new StructuralPropertiesVector[1];
+            pv[0] = new StructuralPropertiesVector(new BroadcastPartitioningProperty(null), null);
+            return new PhysicalRequirements(pv, IPartitioningRequirementsCoordinator.NO_COORDINATION);
+        } else {
+            return super.getRequiredPropertiesForChildren(op, reqdByParent);
+        }
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java
new file mode 100644
index 0000000..49ca5ba
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java
@@ -0,0 +1,225 @@
+package edu.uci.ics.asterix.algebra.operators.physical;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexAccessMethod;
+import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexAccessMethod.SearchModifierType;
+import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexJobGenParams;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenHelper;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.ShortPointable;
+import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.PartitionedLSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+
+/**
+ * Contributes the runtime operator for an unnest-map representing an
+ * inverted-index search.
+ */
+public class InvertedIndexPOperator extends IndexSearchPOperator {
+    private final boolean isPartitioned;
+
+    public InvertedIndexPOperator(IDataSourceIndex<String, AqlSourceId> idx, boolean requiresBroadcast,
+            boolean isPartitioned) {
+        super(idx, requiresBroadcast);
+        this.isPartitioned = isPartitioned;
+    }
+
+    @Override
+    public PhysicalOperatorTag getOperatorTag() {
+        if (isPartitioned) {
+            return PhysicalOperatorTag.FUZZY_INVERTED_INDEX_SEARCH;
+        } else {
+            return PhysicalOperatorTag.INVERTED_INDEX_SEARCH;
+        }
+    }
+
+    @Override
+    public void contributeRuntimeOperator(IHyracksJobBuilder builder, JobGenContext context, ILogicalOperator op,
+            IOperatorSchema opSchema, IOperatorSchema[] inputSchemas, IOperatorSchema outerPlanSchema)
+            throws AlgebricksException {
+        UnnestMapOperator unnestMapOp = (UnnestMapOperator) op;
+        ILogicalExpression unnestExpr = unnestMapOp.getExpressionRef().getValue();
+        if (unnestExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            throw new IllegalStateException();
+        }
+        AbstractFunctionCallExpression unnestFuncExpr = (AbstractFunctionCallExpression) unnestExpr;
+        if (unnestFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.INDEX_SEARCH) {
+            return;
+        }
+        InvertedIndexJobGenParams jobGenParams = new InvertedIndexJobGenParams();
+        jobGenParams.readFromFuncArgs(unnestFuncExpr.getArguments());
+
+        AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+        Dataset dataset;
+        try {
+            dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(),
+                    jobGenParams.getDataverseName(), jobGenParams.getDatasetName());
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+        int[] keyIndexes = getKeyIndexes(jobGenParams.getKeyVarList(), inputSchemas);
+
+        // Build runtime.
+        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> invIndexSearch = buildInvertedIndexRuntime(
+                metadataProvider, context, builder.getJobSpec(), unnestMapOp, opSchema, jobGenParams.getRetainInput(),
+                jobGenParams.getDatasetName(), dataset, jobGenParams.getIndexName(), jobGenParams.getSearchKeyType(),
+                keyIndexes, jobGenParams.getSearchModifierType(), jobGenParams.getSimilarityThreshold());
+        // Contribute operator in hyracks job.
+        builder.contributeHyracksOperator(unnestMapOp, invIndexSearch.first);
+        builder.contributeAlgebricksPartitionConstraint(invIndexSearch.first, invIndexSearch.second);
+        ILogicalOperator srcExchange = unnestMapOp.getInputs().get(0).getValue();
+        builder.contributeGraphEdge(srcExchange, 0, unnestMapOp, 0);
+    }
+
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildInvertedIndexRuntime(
+            AqlMetadataProvider metadataProvider, JobGenContext context, JobSpecification jobSpec,
+            UnnestMapOperator unnestMap, IOperatorSchema opSchema, boolean retainInput, String datasetName,
+            Dataset dataset, String indexName, ATypeTag searchKeyType, int[] keyFields,
+            SearchModifierType searchModifierType, IAlgebricksConstantValue similarityThreshold)
+            throws AlgebricksException {
+        try {
+            IAObject simThresh = ((AsterixConstantValue) similarityThreshold).getObject();
+            IAType itemType = MetadataManager.INSTANCE.getDatatype(metadataProvider.getMetadataTxnContext(),
+                    dataset.getDataverseName(), dataset.getItemTypeName()).getDatatype();
+            int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(metadataProvider.getMetadataTxnContext(),
+                    dataset.getDataverseName(), dataset.getDatasetName(), indexName);
+            if (secondaryIndex == null) {
+                throw new AlgebricksException("Code generation error: no index " + indexName + " for dataset "
+                        + datasetName);
+            }
+            List<String> secondaryKeyFields = secondaryIndex.getKeyFieldNames();
+            int numSecondaryKeys = secondaryKeyFields.size();
+            if (numSecondaryKeys != 1) {
+                throw new AlgebricksException(
+                        "Cannot use "
+                                + numSecondaryKeys
+                                + " fields as a key for an inverted index. There can be only one field as a key for the inverted index index.");
+            }
+            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                throw new AlgebricksException("Only record types can be indexed.");
+            }
+            ARecordType recordType = (ARecordType) itemType;
+            Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(0), recordType);
+            IAType secondaryKeyType = keyPairType.first;
+            if (secondaryKeyType == null) {
+                throw new AlgebricksException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
+            }
+
+            // TODO: For now we assume the type of the generated tokens is the
+            // same as the indexed field.
+            // We need a better way of expressing this because tokens may be
+            // hashed, or an inverted-index may index a list type, etc.
+            int numTokenKeys = (!isPartitioned) ? numSecondaryKeys : numSecondaryKeys + 1;
+            ITypeTraits[] tokenTypeTraits = new ITypeTraits[numTokenKeys];
+            IBinaryComparatorFactory[] tokenComparatorFactories = new IBinaryComparatorFactory[numTokenKeys];
+            for (int i = 0; i < numSecondaryKeys; i++) {
+                tokenComparatorFactories[i] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+                tokenTypeTraits[i] = NonTaggedFormatUtil.getTokenTypeTrait(secondaryKeyType);
+            }
+            if (isPartitioned) {
+                // The partitioning field is hardcoded to be a short *without* an Asterix type tag.
+                tokenComparatorFactories[numSecondaryKeys] = PointableBinaryComparatorFactory
+                        .of(ShortPointable.FACTORY);
+                tokenTypeTraits[numSecondaryKeys] = ShortPointable.TYPE_TRAITS;
+            }
+
+            IVariableTypeEnvironment typeEnv = context.getTypeEnvironment(unnestMap);
+            List<LogicalVariable> outputVars = unnestMap.getVariables();
+            if (retainInput) {
+                outputVars = new ArrayList<LogicalVariable>();
+                VariableUtilities.getLiveVariables(unnestMap, outputVars);
+            }
+            RecordDescriptor outputRecDesc = JobGenHelper.mkRecordDescriptor(typeEnv, opSchema, context);
+
+            int start = outputRecDesc.getFieldCount() - numPrimaryKeys;
+            IBinaryComparatorFactory[] invListsComparatorFactories = JobGenHelper
+                    .variablesToAscBinaryComparatorFactories(outputVars, start, numPrimaryKeys, typeEnv, context);
+            ITypeTraits[] invListsTypeTraits = JobGenHelper.variablesToTypeTraits(outputVars, start, numPrimaryKeys,
+                    typeEnv, context);
+
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
+                    .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(),
+                            datasetName, indexName);
+            // TODO: Here we assume there is only one search key field.
+            int queryField = keyFields[0];
+            // Get tokenizer and search modifier factories.
+            IInvertedIndexSearchModifierFactory searchModifierFactory = InvertedIndexAccessMethod
+                    .getSearchModifierFactory(searchModifierType, simThresh, secondaryIndex);
+            IBinaryTokenizerFactory queryTokenizerFactory = InvertedIndexAccessMethod.getBinaryTokenizerFactory(
+                    searchModifierType, searchKeyType, secondaryIndex);
+            IIndexDataflowHelperFactory dataflowHelperFactory;
+            if (!isPartitioned) {
+                dataflowHelperFactory = new LSMInvertedIndexDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+            } else {
+                dataflowHelperFactory = new PartitionedLSMInvertedIndexDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+            }
+            LSMInvertedIndexSearchOperatorDescriptor invIndexSearchOp = new LSMInvertedIndexSearchOperatorDescriptor(
+                    jobSpec, queryField, appContext.getStorageManagerInterface(), secondarySplitsAndConstraint.first,
+                    appContext.getIndexLifecycleManagerProvider(), tokenTypeTraits, tokenComparatorFactories,
+                    invListsTypeTraits, invListsComparatorFactories, dataflowHelperFactory, queryTokenizerFactory,
+                    searchModifierFactory, outputRecDesc, retainInput, NoOpOperationCallbackFactory.INSTANCE);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(invIndexSearchOp,
+                    secondarySplitsAndConstraint.second);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/RTreeSearchPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/RTreeSearchPOperator.java
index 11e0941..ab66457 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/RTreeSearchPOperator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/RTreeSearchPOperator.java
@@ -1,37 +1,40 @@
 package edu.uci.ics.asterix.algebra.operators.physical;
 
+import java.util.ArrayList;
+import java.util.List;
 
-import org.apache.commons.lang3.mutable.Mutable;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.functions.FunctionArgumentsConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.optimizer.rules.am.RTreeJobGenParams;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.PhysicalOperatorTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractScanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 
-public class RTreeSearchPOperator extends TreeSearchPOperator {
+/**
+ * Contributes the runtime operator for an unnest-map representing a RTree
+ * search.
+ */
+public class RTreeSearchPOperator extends IndexSearchPOperator {
 
-    public RTreeSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx) {
-        super(idx);
+    public RTreeSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx, boolean requiresBroadcast) {
+        super(idx, requiresBroadcast);
     }
 
     @Override
@@ -45,57 +48,32 @@
             throws AlgebricksException {
         UnnestMapOperator unnestMap = (UnnestMapOperator) op;
         ILogicalExpression unnestExpr = unnestMap.getExpressionRef().getValue();
-
-        if (unnestExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr;
-            FunctionIdentifier fid = f.getFunctionIdentifier();
-            if (fid.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
-                try {
-                    contributeRtreeSearch(builder, context, unnestMap, opSchema, inputSchemas);
-                } catch (AlgebricksException e) {
-                    throw new AlgebricksException(e);
-                }
-                return;
-            }
+        if (unnestExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            throw new IllegalStateException();
         }
-        throw new IllegalStateException();
-    }
-
-    private void contributeRtreeSearch(IHyracksJobBuilder builder, JobGenContext context, UnnestMapOperator unnestMap,
-            IOperatorSchema opSchema, IOperatorSchema[] inputSchemas) throws AlgebricksException, AlgebricksException {
-        Mutable<ILogicalExpression> unnestExpr = unnestMap.getExpressionRef();
-        AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr.getValue();
-
-        String idxType = getStringArgument(f, 1);
-        if (idxType != FunctionArgumentsConstants.RTREE_INDEX) {
-            throw new NotImplementedException(idxType + " indexes are not implemented.");
+        AbstractFunctionCallExpression unnestFuncExpr = (AbstractFunctionCallExpression) unnestExpr;
+        FunctionIdentifier funcIdent = unnestFuncExpr.getFunctionIdentifier();
+        if (!funcIdent.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
+            return;
         }
-        String idxName = getStringArgument(f, 0);
-        String datasetName = getStringArgument(f, 2);
-
-        Pair<int[], Integer> keys = getKeys(f, 3, inputSchemas);
-        buildRtreeSearch(builder, context, unnestMap, opSchema, datasetName, idxName, keys.first);
-    }
-
-    private static void buildRtreeSearch(IHyracksJobBuilder builder, JobGenContext context, AbstractScanOperator scan,
-            IOperatorSchema opSchema, String datasetName, String indexName, int[] keyFields)
-            throws AlgebricksException, AlgebricksException {
+        RTreeJobGenParams jobGenParams = new RTreeJobGenParams();
+        jobGenParams.readFromFuncArgs(unnestFuncExpr.getArguments());
+        int[] keyIndexes = getKeyIndexes(jobGenParams.getKeyVarList(), inputSchemas);
         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+        Dataset dataset = mp.findDataset(jobGenParams.getDataverseName(), jobGenParams.getDatasetName());
+        IVariableTypeEnvironment typeEnv = context.getTypeEnvironment(unnestMap);
+        List<LogicalVariable> outputVars = unnestMap.getVariables();
+        if (jobGenParams.getRetainInput()) {
+            outputVars = new ArrayList<LogicalVariable>();
+            VariableUtilities.getLiveVariables(unnestMap, outputVars);
         }
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AlgebricksException("Trying to run rtree search over external dataset (" + datasetName + ").");
-        }
-        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> rtreeSearch = AqlMetadataProvider.buildRtreeRuntime(
-                metadata, context, builder.getJobSpec(), datasetName, adecl, indexName, keyFields);
-        builder.contributeHyracksOperator(scan, rtreeSearch.first);
+        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> rtreeSearch = mp.buildRtreeRuntime(
+                builder.getJobSpec(), outputVars, opSchema, typeEnv, context, jobGenParams.getRetainInput(), dataset,
+                jobGenParams.getIndexName(), keyIndexes);
+        builder.contributeHyracksOperator(unnestMap, rtreeSearch.first);
         builder.contributeAlgebricksPartitionConstraint(rtreeSearch.first, rtreeSearch.second);
-
-        ILogicalOperator srcExchange = scan.getInputs().get(0).getValue();
-        builder.contributeGraphEdge(srcExchange, 0, scan, 0);
+        ILogicalOperator srcExchange = unnestMap.getInputs().get(0).getValue();
+        builder.contributeGraphEdge(srcExchange, 0, unnestMap, 0);
     }
 
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/TreeSearchPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/TreeSearchPOperator.java
deleted file mode 100644
index 54e91af..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/TreeSearchPOperator.java
+++ /dev/null
@@ -1,82 +0,0 @@
-package edu.uci.ics.asterix.algebra.operators.physical;
-
-
-import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractScanOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.AbstractScanPOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-
-public abstract class TreeSearchPOperator extends AbstractScanPOperator {
-
-    private IDataSourceIndex<String, AqlSourceId> idx;
-
-    public TreeSearchPOperator(IDataSourceIndex<String, AqlSourceId> idx) {
-        this.idx = idx;
-    }
-
-    @Override
-    public boolean isMicroOperator() {
-        return false;
-    }
-
-    @Override
-    public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) {
-        IDataSource<?> ds = idx.getDataSource();
-        IDataSourcePropertiesProvider dspp = ds.getPropertiesProvider();
-        AbstractScanOperator as = (AbstractScanOperator) op;
-        deliveredProperties = dspp.computePropertiesVector(as.getVariables());
-    }
-
-    protected Pair<int[], Integer> getKeys(AbstractFunctionCallExpression f, int k, IOperatorSchema[] inputSchemas) {
-        IAObject obj = ((AsterixConstantValue) ((ConstantExpression) f.getArguments().get(k).getValue())
-                .getValue()).getObject();
-        int numKeys = ((AInt32) obj).getIntegerValue();
-        int[] keys = null;
-        if (numKeys > 0) {
-            keys = new int[numKeys];
-            for (int i = 0; i < numKeys; i++) {
-                LogicalVariable var = ((VariableReferenceExpression) f.getArguments().get(k + 1 + i).getValue())
-                        .getVariableReference();
-                keys[i] = inputSchemas[0].findVariable(var);
-            }
-        }
-        return new Pair<int[], Integer>(keys, numKeys);
-    }
-
-    protected String getStringArgument(AbstractFunctionCallExpression f, int k) throws AlgebricksException {
-        ILogicalExpression arg = f.getArguments().get(k).getValue();
-        if (arg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-            throw new NotImplementedException("Index search calls with non-constant " + k
-                    + "-th argument are not implemented.");
-        }
-        ConstantExpression ce = (ConstantExpression) arg;
-        if (!(ce.getValue() instanceof AsterixConstantValue)) {
-            throw new AlgebricksException("Third argument to index-search() should be a string.");
-        }
-        IAObject v = ((AsterixConstantValue) ce.getValue()).getObject();
-        if (v.getType().getTypeTag() != ATypeTag.STRING) {
-            throw new AlgebricksException("Third argument to index-search() should be a string.");
-        }
-        return ((AString) v).getStringValue();
-    }
-
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
index 1646ae8..dd8791f 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
@@ -4,27 +4,21 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.asterix.runtime.base.IAggregateFunctionDynamicDescriptor;
-import edu.uci.ics.asterix.runtime.base.IRunningAggregateFunctionDynamicDescriptor;
-import edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor;
-import edu.uci.ics.asterix.runtime.base.ISerializableAggregateFunctionDynamicDescriptor;
-import edu.uci.ics.asterix.runtime.base.IUnnestingFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.comparisons.ComparisonEvalFactory;
 import edu.uci.ics.asterix.runtime.formats.FormatUtils;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ILogicalExpressionJobGen;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.StatefulFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
@@ -32,14 +26,13 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IRunningAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.evaluators.ColumnAccessEvalFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyRunningAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.evaluators.ColumnAccessEvalFactory;
 
 public class AqlLogicalExpressionJobGen implements ILogicalExpressionJobGen {
 
@@ -49,139 +42,66 @@
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(AggregateFunctionCallExpression expr,
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(AggregateFunctionCallExpression expr,
             IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
             throws AlgebricksException {
-        IEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
-        IFunctionDescriptor fd;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations compiledDecls = mp.getMetadataDeclarations();
-        try {
-            fd = compiledDecls.getFormat().resolveFunction(expr, env);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
+        ICopyEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
+        IFunctionDescriptor fd = getFunctionDescriptor(expr, env, context);
         switch (fd.getFunctionDescriptorTag()) {
-            case SCALAR: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from a scalar evaluator function descriptor. (fi="
-                                + expr.getFunctionIdentifier() + ")");
-            }
-            case AGGREGATE: {
-                IAggregateFunctionDynamicDescriptor afdd = (IAggregateFunctionDynamicDescriptor) fd;
-                return afdd.createAggregateFunctionFactory(args);
-            }
-            case SERIALAGGREGATE: {
-                // temporal hack
+            case SERIALAGGREGATE:
                 return null;
-            }
-            case RUNNINGAGGREGATE: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from a running aggregate function descriptor.");
-            }
-            case UNNEST: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from an unnesting aggregate function descriptor.");
-            }
-
-            default: {
-                throw new IllegalStateException(fd.getFunctionDescriptorTag().toString());
-            }
+            case AGGREGATE:
+                return fd.createAggregateFunctionFactory(args);
+            default:
+                throw new IllegalStateException("Invalid function descriptor " + fd.getFunctionDescriptorTag()
+                        + " expected " + FunctionDescriptorTag.SERIALAGGREGATE + " or "
+                        + FunctionDescriptorTag.AGGREGATE);
         }
-
     }
 
     @Override
-    public IRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(StatefulFunctionCallExpression expr,
+    public ICopyRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(
+            StatefulFunctionCallExpression expr, IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas,
+            JobGenContext context) throws AlgebricksException {
+        ICopyEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
+        return getFunctionDescriptor(expr, env, context).createRunningAggregateFunctionFactory(args);
+    }
+
+    @Override
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(UnnestingFunctionCallExpression expr,
             IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
             throws AlgebricksException {
-        IEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
-        IFunctionDescriptor fd;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations compiledDecls = mp.getMetadataDeclarations();
-        try {
-            fd = compiledDecls.getFormat().resolveFunction(expr, env);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
-        switch (fd.getFunctionDescriptorTag()) {
-            case SCALAR: {
-                throw new AlgebricksException(
-                        "Trying to create a running aggregate from a scalar evaluator function descriptor. (fi="
-                                + expr.getFunctionIdentifier() + ")");
-            }
-            case AGGREGATE: {
-                throw new AlgebricksException(
-                        "Trying to create a running aggregate from an aggregate function descriptor.");
-            }
-            case UNNEST: {
-                throw new AlgebricksException(
-                        "Trying to create a running aggregate from an unnesting function descriptor.");
-            }
-            case RUNNINGAGGREGATE: {
-                IRunningAggregateFunctionDynamicDescriptor rafdd = (IRunningAggregateFunctionDynamicDescriptor) fd;
-                return rafdd.createRunningAggregateFunctionFactory(args);
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
+        ICopyEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
+        return getFunctionDescriptor(expr, env, context).createUnnestingFunctionFactory(args);
     }
 
     @Override
-    public IUnnestingFunctionFactory createUnnestingFunctionFactory(UnnestingFunctionCallExpression expr,
-            IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
-            throws AlgebricksException {
-        IEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
-        IFunctionDescriptor fd;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations compiledDecls = mp.getMetadataDeclarations();
-        try {
-            fd = compiledDecls.getFormat().resolveFunction(expr, env);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
-        switch (fd.getFunctionDescriptorTag()) {
-            case UNNEST: {
-                IUnnestingFunctionDynamicDescriptor ufdd = (IUnnestingFunctionDynamicDescriptor) fd;
-                return ufdd.createUnnestingFunctionFactory(args);
-            }
-            default: {
-                throw new AlgebricksException("Trying to create an unnesting function descriptor from a "
-                        + fd.getFunctionDescriptorTag() + ". (fid=" + expr.getFunctionIdentifier() + ")");
-            }
-        }
-    }
-
-    @Override
-    public IEvaluatorFactory createEvaluatorFactory(ILogicalExpression expr, IVariableTypeEnvironment env,
+    public ICopyEvaluatorFactory createEvaluatorFactory(ILogicalExpression expr, IVariableTypeEnvironment env,
             IOperatorSchema[] inputSchemas, JobGenContext context) throws AlgebricksException {
+        ICopyEvaluatorFactory copyEvaluatorFactory = null;
         switch (expr.getExpressionTag()) {
             case VARIABLE: {
                 VariableReferenceExpression v = (VariableReferenceExpression) expr;
-                return createVariableEvaluatorFactory(v, inputSchemas, context);
+                copyEvaluatorFactory = createVariableEvaluatorFactory(v, inputSchemas, context);
+                return copyEvaluatorFactory;
             }
             case CONSTANT: {
                 ConstantExpression c = (ConstantExpression) expr;
-                return createConstantEvaluatorFactory(c, inputSchemas, context);
+                copyEvaluatorFactory = createConstantEvaluatorFactory(c, inputSchemas, context);
+                return copyEvaluatorFactory;
             }
             case FUNCTION_CALL: {
-                AbstractFunctionCallExpression fun = (AbstractFunctionCallExpression) expr;
-                if (fun.getKind() == FunctionKind.SCALAR) {
-                    ScalarFunctionCallExpression scalar = (ScalarFunctionCallExpression) fun;
-                    return createScalarFunctionEvaluatorFactory(scalar, env, inputSchemas, context);
-                } else {
-                    throw new AlgebricksException("Cannot create evaluator for function " + fun + " of kind "
-                            + fun.getKind());
-                }
+                copyEvaluatorFactory = createScalarFunctionEvaluatorFactory((AbstractFunctionCallExpression) expr, env,
+                        inputSchemas, context);
+                return copyEvaluatorFactory;
             }
-            default: {
+            default:
                 throw new IllegalStateException();
-            }
         }
+
     }
 
-    private IEvaluatorFactory createVariableEvaluatorFactory(VariableReferenceExpression expr,
+    private ICopyEvaluatorFactory createVariableEvaluatorFactory(VariableReferenceExpression expr,
             IOperatorSchema[] inputSchemas, JobGenContext context) throws AlgebricksException {
         LogicalVariable variable = expr.getVariableReference();
         for (IOperatorSchema scm : inputSchemas) {
@@ -193,51 +113,35 @@
         throw new AlgebricksException("Variable " + variable + " could not be found in any input schema.");
     }
 
-    private IEvaluatorFactory createScalarFunctionEvaluatorFactory(AbstractFunctionCallExpression expr,
+    private ICopyEvaluatorFactory createScalarFunctionEvaluatorFactory(AbstractFunctionCallExpression expr,
             IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
             throws AlgebricksException {
-        IEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
+        ICopyEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
         FunctionIdentifier fi = expr.getFunctionIdentifier();
         ComparisonKind ck = AlgebricksBuiltinFunctions.getComparisonType(fi);
         if (ck != null) {
             return new ComparisonEvalFactory(args[0], args[1], ck);
         }
 
-        IFunctionDescriptor fd;
-
+        IFunctionDescriptor fd = null;
         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        IDataFormat format = mp == null ? FormatUtils.getDefaultFormat() : mp.getMetadataDeclarations().getFormat();
-        try {
-            fd = format.resolveFunction(expr, env);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
-
-        switch (fd.getFunctionDescriptorTag()) {
-            case SCALAR: {
-                IScalarFunctionDynamicDescriptor sfdd = (IScalarFunctionDynamicDescriptor) fd;
-                return sfdd.createEvaluatorFactory(args);
-            }
-            default: {
-                throw new AlgebricksException("Trying to create a scalar function descriptor from a "
-                        + fd.getFunctionDescriptorTag() + ". (fid=" + fi + ")");
-            }
-        }
-
+        IDataFormat format = FormatUtils.getDefaultFormat();
+        fd = format.resolveFunction(expr, env);
+        return fd.createEvaluatorFactory(args);
     }
 
-    private IEvaluatorFactory createConstantEvaluatorFactory(ConstantExpression expr, IOperatorSchema[] inputSchemas,
-            JobGenContext context) throws AlgebricksException {
+    private ICopyEvaluatorFactory createConstantEvaluatorFactory(ConstantExpression expr,
+            IOperatorSchema[] inputSchemas, JobGenContext context) throws AlgebricksException {
         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        IDataFormat format = mp == null ? FormatUtils.getDefaultFormat() : mp.getMetadataDeclarations().getFormat();
+        IDataFormat format = FormatUtils.getDefaultFormat();
         return format.getConstantEvalFactory(expr.getValue());
     }
 
-    private IEvaluatorFactory[] codegenArguments(AbstractFunctionCallExpression expr, IVariableTypeEnvironment env,
+    private ICopyEvaluatorFactory[] codegenArguments(AbstractFunctionCallExpression expr, IVariableTypeEnvironment env,
             IOperatorSchema[] inputSchemas, JobGenContext context) throws AlgebricksException {
         List<Mutable<ILogicalExpression>> arguments = expr.getArguments();
         int n = arguments.size();
-        IEvaluatorFactory[] args = new IEvaluatorFactory[n];
+        ICopyEvaluatorFactory[] args = new ICopyEvaluatorFactory[n];
         int i = 0;
         for (Mutable<ILogicalExpression> a : arguments) {
             args[i++] = createEvaluatorFactory(a.getValue(), env, inputSchemas, context);
@@ -246,31 +150,19 @@
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
             AggregateFunctionCallExpression expr, IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas,
             JobGenContext context) throws AlgebricksException {
-        IEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
-        IFunctionDescriptor fd;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations compiledDecls = mp.getMetadataDeclarations();
-        try {
-            fd = compiledDecls.getFormat().resolveFunction(expr, env);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
+        ICopyEvaluatorFactory[] args = codegenArguments(expr, env, inputSchemas, context);
+        IFunctionDescriptor fd = getFunctionDescriptor(expr, env, context);
+
         switch (fd.getFunctionDescriptorTag()) {
-            case SCALAR: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from a scalar evaluator function descriptor. (fi="
-                                + expr.getFunctionIdentifier() + ")");
-            }
             case AGGREGATE: {
                 if (AsterixBuiltinFunctions.isAggregateFunctionSerializable(fd.getIdentifier())) {
                     AggregateFunctionCallExpression serialAggExpr = AsterixBuiltinFunctions
                             .makeSerializableAggregateFunctionExpression(fd.getIdentifier(), expr.getArguments());
-                    ISerializableAggregateFunctionDynamicDescriptor afdd = (ISerializableAggregateFunctionDynamicDescriptor) compiledDecls
-                            .getFormat().resolveFunction(serialAggExpr, env);
-                    return afdd.createAggregateFunctionFactory(args);
+                    IFunctionDescriptor afdd = getFunctionDescriptor(serialAggExpr, env, context);
+                    return afdd.createSerializableAggregateFunctionFactory(args);
                 } else {
                     throw new AlgebricksException(
                             "Trying to create a serializable aggregate from a non-serializable aggregate function descriptor. (fi="
@@ -278,22 +170,22 @@
                 }
             }
             case SERIALAGGREGATE: {
-                ISerializableAggregateFunctionDynamicDescriptor afdd = (ISerializableAggregateFunctionDynamicDescriptor) fd;
-                return afdd.createAggregateFunctionFactory(args);
-            }
-            case RUNNINGAGGREGATE: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from a running aggregate function descriptor.");
-            }
-            case UNNEST: {
-                throw new AlgebricksException(
-                        "Trying to create an aggregate from an unnesting aggregate function descriptor.");
+                return fd.createSerializableAggregateFunctionFactory(args);
             }
 
-            default: {
-                throw new IllegalStateException();
-            }
+            default:
+                throw new IllegalStateException("Invalid function descriptor " + fd.getFunctionDescriptorTag()
+                        + " expected " + FunctionDescriptorTag.SERIALAGGREGATE + " or "
+                        + FunctionDescriptorTag.AGGREGATE);
         }
     }
 
+    private IFunctionDescriptor getFunctionDescriptor(AbstractFunctionCallExpression expr,
+            IVariableTypeEnvironment env, JobGenContext context) throws AlgebricksException {
+        IFunctionDescriptor fd;
+        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
+        fd = FormatUtils.getDefaultFormat().resolveFunction(expr, env);
+        return fd;
+    }
+
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/AnalysisUtil.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/AnalysisUtil.java
index beea75e..644996a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/AnalysisUtil.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/AnalysisUtil.java
@@ -7,6 +7,8 @@
 
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
@@ -16,7 +18,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AnalysisUtil {
     /*
@@ -106,9 +107,9 @@
         return false;
     }
 
-    public static String getDatasetName(DataSourceScanOperator op) throws AlgebricksException {
+    public static Pair<String, String> getDatasetInfo(DataSourceScanOperator op) throws AlgebricksException {
         AqlSourceId srcId = (AqlSourceId) op.getDataSource().getId();
-        return srcId.getDatasetName();
+        return new Pair<String, String>(srcId.getDataverseName(), srcId.getDatasetName());
     }
 
     private static List<FunctionIdentifier> fieldAccessFunctions = new ArrayList<FunctionIdentifier>();
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/FuzzyUtils.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/FuzzyUtils.java
index 321c6fe..baf16c2 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/FuzzyUtils.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/FuzzyUtils.java
@@ -1,34 +1,91 @@
 package edu.uci.ics.asterix.optimizer.base;
 
+import java.util.ArrayList;
 
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.om.base.AFloat;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 
 public class FuzzyUtils {
 
     private final static String DEFAULT_SIM_FUNCTION = "jaccard";
-    private final static float DEFAULT_SIM_THRESHOLD = .8f;
+    private final static float JACCARD_DEFAULT_SIM_THRESHOLD = .8f;
+    private final static int EDIT_DISTANCE_DEFAULT_SIM_THRESHOLD = 1;
 
     private final static String SIM_FUNCTION_PROP_NAME = "simfunction";
     private final static String SIM_THRESHOLD_PROP_NAME = "simthreshold";
 
+    public final static String JACCARD_FUNCTION_NAME = "jaccard";
+    public final static String EDIT_DISTANCE_FUNCTION_NAME = "edit-distance";
+
     public static FunctionIdentifier getTokenizer(ATypeTag inputTag) {
         switch (inputTag) {
             case STRING:
                 return AsterixBuiltinFunctions.COUNTHASHED_WORD_TOKENS;
             case UNORDEREDLIST:
             case ORDEREDLIST:
+            case ANY:
                 return null;
             default:
                 throw new NotImplementedException("No tokenizer for type " + inputTag);
         }
     }
 
-    public static float getSimThreshold(AqlCompiledMetadataDeclarations metadata) {
-        float simThreshold = DEFAULT_SIM_THRESHOLD;
+    public static IAObject getSimThreshold(AqlMetadataProvider metadata, String simFuncName) {
+        String simThresholValue = metadata.getPropertyValue(SIM_THRESHOLD_PROP_NAME);
+        IAObject ret = null;
+        if (simFuncName.equals(JACCARD_FUNCTION_NAME)) {
+            if (simThresholValue != null) {
+                float jaccThresh = Float.parseFloat(simThresholValue);
+                ret = new AFloat(jaccThresh);
+            } else {
+                ret = new AFloat(JACCARD_DEFAULT_SIM_THRESHOLD);
+            }
+        } else if (simFuncName.equals(EDIT_DISTANCE_FUNCTION_NAME)) {
+            if (simThresholValue != null) {
+                int edThresh = Integer.parseInt(simThresholValue);
+                ret = new AInt32(edThresh);
+            } else {
+                ret = new AFloat(EDIT_DISTANCE_DEFAULT_SIM_THRESHOLD);
+            }
+        }
+        return ret;
+    }
+
+    public static FunctionIdentifier getFunctionIdentifier(String simFuncName) {
+        if (simFuncName.equals(JACCARD_FUNCTION_NAME)) {
+            return AsterixBuiltinFunctions.SIMILARITY_JACCARD;
+        } else if (simFuncName.equals(EDIT_DISTANCE_FUNCTION_NAME)) {
+            return AsterixBuiltinFunctions.EDIT_DISTANCE;
+        }
+        return null;
+    }
+
+    public static ScalarFunctionCallExpression getComparisonExpr(String simFuncName,
+            ArrayList<Mutable<ILogicalExpression>> cmpArgs) {
+        if (simFuncName.equals(JACCARD_FUNCTION_NAME)) {
+            return new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.GE),
+                    cmpArgs);
+        } else if (simFuncName.equals(EDIT_DISTANCE_FUNCTION_NAME)) {
+            return new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.LE),
+                    cmpArgs);
+        }
+        return null;
+    }
+
+    public static float getSimThreshold(AqlMetadataProvider metadata) {
+        float simThreshold = JACCARD_DEFAULT_SIM_THRESHOLD;
         String simThresholValue = metadata.getPropertyValue(SIM_THRESHOLD_PROP_NAME);
         if (simThresholValue != null) {
             simThreshold = Float.parseFloat(simThresholValue);
@@ -36,7 +93,8 @@
         return simThreshold;
     }
 
-    public static String getSimFunction(AqlCompiledMetadataDeclarations metadata) {
+    // TODO: The default function depend on the input types. 
+    public static String getSimFunction(AqlMetadataProvider metadata) {
         String simFunction = metadata.getPropertyValue(SIM_FUNCTION_PROP_NAME);
         if (simFunction == null) {
             simFunction = DEFAULT_SIM_FUNCTION;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
index d626ef3..3f434b7 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
@@ -1,9 +1,23 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.optimizer.base;
 
 import java.util.LinkedList;
 import java.util.List;
 
-import edu.uci.ics.hyracks.algebricks.rewriter.rules.*; 
 import edu.uci.ics.asterix.optimizer.rules.AsterixInlineVariablesRule;
 import edu.uci.ics.asterix.optimizer.rules.ByNameToByIndexFieldAccessRule;
 import edu.uci.ics.asterix.optimizer.rules.ConstantFoldingRule;
@@ -12,30 +26,81 @@
 import edu.uci.ics.asterix.optimizer.rules.ExtractOrderExpressionsRule;
 import edu.uci.ics.asterix.optimizer.rules.FeedScanCollectionToUnnest;
 import edu.uci.ics.asterix.optimizer.rules.FuzzyEqRule;
-import edu.uci.ics.asterix.optimizer.rules.FuzzyJoinRule;
 import edu.uci.ics.asterix.optimizer.rules.IfElseToSwitchCaseFunctionRule;
-import edu.uci.ics.asterix.optimizer.rules.InlineAssignIntoAggregateRule;
-import edu.uci.ics.asterix.optimizer.rules.IntroduceBTreeIndexSearchRule;
-import edu.uci.ics.asterix.optimizer.rules.IntroduceRTreeIndexSearchRule;
+import edu.uci.ics.asterix.optimizer.rules.InlineUnnestFunctionRule;
+import edu.uci.ics.asterix.optimizer.rules.IntroduceDynamicTypeCastRule;
+import edu.uci.ics.asterix.optimizer.rules.IntroduceEnforcedListTypeRule;
+import edu.uci.ics.asterix.optimizer.rules.IntroduceInstantLockSearchCallbackRule;
 import edu.uci.ics.asterix.optimizer.rules.IntroduceSecondaryIndexInsertDeleteRule;
+import edu.uci.ics.asterix.optimizer.rules.IntroduceStaticTypeCastRule;
 import edu.uci.ics.asterix.optimizer.rules.LoadRecordFieldsRule;
 import edu.uci.ics.asterix.optimizer.rules.NestGroupByRule;
 import edu.uci.ics.asterix.optimizer.rules.PullPositionalVariableFromUnnestRule;
+import edu.uci.ics.asterix.optimizer.rules.PushAggFuncIntoStandaloneAggregateRule;
 import edu.uci.ics.asterix.optimizer.rules.PushAggregateIntoGroupbyRule;
 import edu.uci.ics.asterix.optimizer.rules.PushFieldAccessRule;
 import edu.uci.ics.asterix.optimizer.rules.PushGroupByThroughProduct;
 import edu.uci.ics.asterix.optimizer.rules.PushProperJoinThroughProduct;
+import edu.uci.ics.asterix.optimizer.rules.PushSimilarityFunctionsBelowJoin;
 import edu.uci.ics.asterix.optimizer.rules.RemoveRedundantListifyRule;
+import edu.uci.ics.asterix.optimizer.rules.RemoveUnusedOneToOneEquiJoinRule;
+import edu.uci.ics.asterix.optimizer.rules.ReplaceSinkOpWithCommitOpRule;
 import edu.uci.ics.asterix.optimizer.rules.SetAsterixPhysicalOperatorsRule;
 import edu.uci.ics.asterix.optimizer.rules.SetClosedRecordConstructorsRule;
+import edu.uci.ics.asterix.optimizer.rules.SimilarityCheckRule;
 import edu.uci.ics.asterix.optimizer.rules.UnnestToDataScanRule;
+import edu.uci.ics.asterix.optimizer.rules.am.IntroduceJoinAccessMethodRule;
+import edu.uci.ics.asterix.optimizer.rules.am.IntroduceSelectAccessMethodRule;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.BreakSelectIntoConjunctsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ComplexJoinInferenceRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ComplexUnnestToProductRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ConsolidateAssignsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ConsolidateSelectsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.EliminateSubplanRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.EnforceOrderByAfterSubplan;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.EnforceStructuralPropertiesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractCommonExpressionsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractCommonOperatorsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractGbyExpressionsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.FactorRedundantGroupAndDecorVarsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InferTypesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineAssignIntoAggregateRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineSingleReferenceVariablesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InsertOuterJoinRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InsertProjectBeforeUnionRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroHashPartitionMergeExchange;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroJoinInsideSubplanRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceAggregateCombinerRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceGroupByCombinerRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceGroupByForSubplanRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceProjectsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.IsolateHyracksOperatorsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PullSelectOutOfEqJoin;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushAssignBelowUnionAllRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushAssignDownThroughProductRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushDieUpRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushLimitDownRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushNestedOrderByUnderPreSortedGroupByRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushProjectDownRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushSelectDownRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushSelectIntoJoinRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushSubplanWithAggregateDownThroughProductRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.ReinferAllTypesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.RemoveRedundantGroupByDecorVars;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.RemoveRedundantVariablesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.RemoveUnusedAssignAndAggregateRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.SetAlgebricksPhysicalOperatorsRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.SetExecutionModeRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.SimpleUnnestToProductRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.SubplanOutOfGroupRule;
 
 public final class RuleCollections {
 
     public final static List<IAlgebraicRewriteRule> buildTypeInferenceRuleCollection() {
         List<IAlgebraicRewriteRule> typeInfer = new LinkedList<IAlgebraicRewriteRule>();
+        typeInfer.add(new InlineUnnestFunctionRule());
         typeInfer.add(new InferTypesRule());
         return typeInfer;
     }
@@ -43,14 +108,25 @@
     public final static List<IAlgebraicRewriteRule> buildNormalizationRuleCollection() {
         List<IAlgebraicRewriteRule> normalization = new LinkedList<IAlgebraicRewriteRule>();
         normalization.add(new EliminateSubplanRule());
-        normalization.add(new IntroduceGroupByForStandaloneAggregRule());
+        normalization.add(new EnforceOrderByAfterSubplan());
+        normalization.add(new PushAggFuncIntoStandaloneAggregateRule());
         normalization.add(new BreakSelectIntoConjunctsRule());
         normalization.add(new ExtractGbyExpressionsRule());
         normalization.add(new ExtractDistinctByExpressionsRule());
         normalization.add(new ExtractOrderExpressionsRule());
+        normalization.add(new ExtractCommonExpressionsRule());
+
+        // IntroduceStaticTypeCastRule should go before
+        // IntroduceDynamicTypeCastRule to
+        // avoid unnecessary dynamic casting
+        normalization.add(new IntroduceStaticTypeCastRule());
+        normalization.add(new IntroduceDynamicTypeCastRule());
+        normalization.add(new IntroduceEnforcedListTypeRule());
         normalization.add(new ConstantFoldingRule());
         normalization.add(new UnnestToDataScanRule());
         normalization.add(new IfElseToSwitchCaseFunctionRule());
+        normalization.add(new FuzzyEqRule());
+        normalization.add(new SimilarityCheckRule());
         return normalization;
     }
 
@@ -61,6 +137,7 @@
         condPushDownAndJoinInference.add(new PushDieUpRule());
         condPushDownAndJoinInference.add(new RemoveRedundantListifyRule());
         condPushDownAndJoinInference.add(new SimpleUnnestToProductRule());
+        condPushDownAndJoinInference.add(new ComplexUnnestToProductRule());
         condPushDownAndJoinInference.add(new ComplexJoinInferenceRule());
         condPushDownAndJoinInference.add(new PushSelectIntoJoinRule());
         condPushDownAndJoinInference.add(new IntroJoinInsideSubplanRule());
@@ -69,8 +146,11 @@
         condPushDownAndJoinInference.add(new IntroduceGroupByForSubplanRule());
         condPushDownAndJoinInference.add(new SubplanOutOfGroupRule());
         condPushDownAndJoinInference.add(new InsertOuterJoinRule());
+
+        condPushDownAndJoinInference.add(new RemoveRedundantVariablesRule());
         condPushDownAndJoinInference.add(new AsterixInlineVariablesRule());
         condPushDownAndJoinInference.add(new RemoveUnusedAssignAndAggregateRule());
+
         condPushDownAndJoinInference.add(new FactorRedundantGroupAndDecorVarsRule());
         condPushDownAndJoinInference.add(new PushAggregateIntoGroupbyRule());
         condPushDownAndJoinInference.add(new EliminateSubplanRule());
@@ -87,8 +167,8 @@
         fieldLoads.add(new PushFieldAccessRule());
         // fieldLoads.add(new ByNameToByHandleFieldAccessRule()); -- disabled
         fieldLoads.add(new ByNameToByIndexFieldAccessRule());
+        fieldLoads.add(new RemoveRedundantVariablesRule());
         fieldLoads.add(new AsterixInlineVariablesRule());
-        // fieldLoads.add(new InlineRecordAccessRule());
         fieldLoads.add(new RemoveUnusedAssignAndAggregateRule());
         fieldLoads.add(new ConstantFoldingRule());
         fieldLoads.add(new FeedScanCollectionToUnnest());
@@ -98,9 +178,8 @@
 
     public final static List<IAlgebraicRewriteRule> buildFuzzyJoinRuleCollection() {
         List<IAlgebraicRewriteRule> fuzzy = new LinkedList<IAlgebraicRewriteRule>();
-        fuzzy.add(new FuzzyJoinRule());
+        // fuzzy.add(new FuzzyJoinRule()); -- The non-indexed fuzzy join will be temporarily disabled. It should be enabled some time in the near future.
         fuzzy.add(new InferTypesRule());
-        fuzzy.add(new FuzzyEqRule());
         return fuzzy;
     }
 
@@ -109,20 +188,34 @@
         consolidation.add(new ConsolidateSelectsRule());
         consolidation.add(new ConsolidateAssignsRule());
         consolidation.add(new InlineAssignIntoAggregateRule());
-        consolidation.add(new IntroduceCombinerRule());
+        consolidation.add(new IntroduceGroupByCombinerRule());
+        consolidation.add(new IntroduceAggregateCombinerRule());
         consolidation.add(new CountVarToCountOneRule());
-        consolidation.add(new IntroduceBTreeIndexSearchRule());
-        consolidation.add(new IntroduceRTreeIndexSearchRule());
         consolidation.add(new RemoveUnusedAssignAndAggregateRule());
-        consolidation.add(new IntroduceSecondaryIndexInsertDeleteRule());
+        consolidation.add(new RemoveRedundantGroupByDecorVars());
         return consolidation;
     }
 
-    public final static List<IAlgebraicRewriteRule> buildOpPushDownRuleCollection() {
-        List<IAlgebraicRewriteRule> opPushDown = new LinkedList<IAlgebraicRewriteRule>();
-        opPushDown.add(new PushProjectDownRule());
-        opPushDown.add(new PushSelectDownRule());
-        return opPushDown;
+    public final static List<IAlgebraicRewriteRule> buildAccessMethodRuleCollection() {
+        List<IAlgebraicRewriteRule> accessMethod = new LinkedList<IAlgebraicRewriteRule>();
+        accessMethod.add(new IntroduceSelectAccessMethodRule());
+        accessMethod.add(new IntroduceJoinAccessMethodRule());
+        accessMethod.add(new IntroduceSecondaryIndexInsertDeleteRule());
+        accessMethod.add(new RemoveUnusedOneToOneEquiJoinRule());
+        accessMethod.add(new PushSimilarityFunctionsBelowJoin());
+        accessMethod.add(new RemoveUnusedAssignAndAggregateRule());
+        return accessMethod;
+    }
+
+    public final static List<IAlgebraicRewriteRule> buildPlanCleanupRuleCollection() {
+        List<IAlgebraicRewriteRule> planCleanupRules = new LinkedList<IAlgebraicRewriteRule>();
+        planCleanupRules.add(new PushAssignBelowUnionAllRule());
+        planCleanupRules.add(new ExtractCommonExpressionsRule());
+        planCleanupRules.add(new RemoveRedundantVariablesRule());
+        planCleanupRules.add(new PushProjectDownRule());
+        planCleanupRules.add(new PushSelectDownRule());
+        planCleanupRules.add(new RemoveUnusedAssignAndAggregateRule());
+        return planCleanupRules;
     }
 
     public final static List<IAlgebraicRewriteRule> buildDataExchangeRuleCollection() {
@@ -134,14 +227,23 @@
     public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesAllLevelsRuleCollection() {
         List<IAlgebraicRewriteRule> physicalRewritesAllLevels = new LinkedList<IAlgebraicRewriteRule>();
         physicalRewritesAllLevels.add(new PullSelectOutOfEqJoin());
+        //Turned off the following rule for now not to change OptimizerTest results.
+        //physicalRewritesAllLevels.add(new IntroduceTransactionCommitByAssignOpRule());
+        physicalRewritesAllLevels.add(new ReplaceSinkOpWithCommitOpRule());
         physicalRewritesAllLevels.add(new SetAlgebricksPhysicalOperatorsRule());
         physicalRewritesAllLevels.add(new SetAsterixPhysicalOperatorsRule());
+        physicalRewritesAllLevels.add(new IntroduceInstantLockSearchCallbackRule());
         physicalRewritesAllLevels.add(new EnforceStructuralPropertiesRule());
         physicalRewritesAllLevels.add(new IntroHashPartitionMergeExchange());
         physicalRewritesAllLevels.add(new SetClosedRecordConstructorsRule());
         physicalRewritesAllLevels.add(new PullPositionalVariableFromUnnestRule());
         physicalRewritesAllLevels.add(new PushProjectDownRule());
         physicalRewritesAllLevels.add(new InsertProjectBeforeUnionRule());
+        physicalRewritesAllLevels.add(new InlineSingleReferenceVariablesRule());
+        physicalRewritesAllLevels.add(new RemoveUnusedAssignAndAggregateRule());
+        physicalRewritesAllLevels.add(new ConsolidateAssignsRule());
+        // After adding projects, we may need need to set physical operators again.
+        physicalRewritesAllLevels.add(new SetAlgebricksPhysicalOperatorsRule());
         return physicalRewritesAllLevels;
     }
 
@@ -149,6 +251,9 @@
         List<IAlgebraicRewriteRule> physicalRewritesTopLevel = new LinkedList<IAlgebraicRewriteRule>();
         physicalRewritesTopLevel.add(new PushNestedOrderByUnderPreSortedGroupByRule());
         physicalRewritesTopLevel.add(new PushLimitDownRule());
+        physicalRewritesTopLevel.add(new IntroduceProjectsRule());
+        physicalRewritesTopLevel.add(new SetAlgebricksPhysicalOperatorsRule());
+        physicalRewritesTopLevel.add(new SetExecutionModeRule());
         return physicalRewritesTopLevel;
     }
 
@@ -163,4 +268,4 @@
         return prepareForJobGenRewrites;
     }
 
-}
\ No newline at end of file
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
index 08e31ba..772a1f9 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
@@ -14,354 +14,18 @@
  */
 package edu.uci.ics.asterix.optimizer.rules;
 
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.EquivalenceClass;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractLogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractOperatorWithNestedPlans;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ProjectOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.config.AlgebricksConfig;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineVariablesRule;
 
-public class AsterixInlineVariablesRule implements IAlgebraicRewriteRule {
-
-    @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
-        return false;
-    }
-
-    @Override
-    /**
-     * 
-     * Does one big DFS sweep over the plan.
-     * 
-     */
-    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
-        if (context.checkIfInDontApplySet(this, opRef.getValue())) {
-            return false;
-        }
-        VariableSubstitutionVisitor substVisitor = new VariableSubstitutionVisitor(false);
-        VariableSubstitutionVisitor substVisitorForWrites = new VariableSubstitutionVisitor(true);
-        substVisitor.setContext(context);
-        substVisitorForWrites.setContext(context);
-        Pair<Boolean, Boolean> bb = collectEqClassesAndRemoveRedundantOps(opRef, context, true,
-                new LinkedList<EquivalenceClass>(), substVisitor, substVisitorForWrites);
-        return bb.first;
-    }
-
-    private Pair<Boolean, Boolean> collectEqClassesAndRemoveRedundantOps(Mutable<ILogicalOperator> opRef,
-            IOptimizationContext context, boolean first, List<EquivalenceClass> equivClasses,
-            VariableSubstitutionVisitor substVisitor, VariableSubstitutionVisitor substVisitorForWrites)
-            throws AlgebricksException {
-        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
-        if (context.checkIfInDontApplySet(this, opRef.getValue())) {
-            new Pair<Boolean, Boolean>(false, false);
-        }
-        if (op.getOperatorTag() == LogicalOperatorTag.UNNEST_MAP) {
-            return new Pair<Boolean, Boolean>(false, false);
-        }
-        boolean modified = false;
-        boolean ecChange = false;
-        int cnt = 0;
-        for (Mutable<ILogicalOperator> i : op.getInputs()) {
-            boolean isOuterInputBranch = op.getOperatorTag() == LogicalOperatorTag.LEFTOUTERJOIN && cnt == 1;
-            List<EquivalenceClass> eqc = isOuterInputBranch ? new LinkedList<EquivalenceClass>() : equivClasses;
-
-            Pair<Boolean, Boolean> bb = (collectEqClassesAndRemoveRedundantOps(i, context, false, eqc, substVisitor,
-                    substVisitorForWrites));
-
-            if (bb.first) {
-                modified = true;
-            }
-            if (bb.second) {
-                ecChange = true;
-            }
-
-            if (isOuterInputBranch) {
-                if (AlgebricksConfig.DEBUG) {
-                    AlgebricksConfig.ALGEBRICKS_LOGGER.finest("--- Equivalence classes for inner branch of outer op.: "
-                            + eqc + "\n");
-                }
-                for (EquivalenceClass ec : eqc) {
-                    if (!ec.representativeIsConst()) {
-                        equivClasses.add(ec);
-                    }
-                }
-            }
-
-            ++cnt;
-        }
-        if (op.hasNestedPlans()) {
-            AbstractOperatorWithNestedPlans n = (AbstractOperatorWithNestedPlans) op;
-            List<EquivalenceClass> eqc = equivClasses;
-            if (n.getOperatorTag() == LogicalOperatorTag.SUBPLAN) {
-                eqc = new LinkedList<EquivalenceClass>();
-            } else {
-                eqc = equivClasses;
-            }
-            for (ILogicalPlan p : n.getNestedPlans()) {
-                for (Mutable<ILogicalOperator> r : p.getRoots()) {
-                    Pair<Boolean, Boolean> bb = collectEqClassesAndRemoveRedundantOps(r, context, false, eqc,
-                            substVisitor, substVisitorForWrites);
-                    if (bb.first) {
-                        modified = true;
-                    }
-                    if (bb.second) {
-                        ecChange = true;
-                    }
-                }
-            }
-        }
-        // we assume a variable is assigned a value only once
-        if (op.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
-            AssignOperator a = (AssignOperator) op;
-            ILogicalExpression rhs = a.getExpressions().get(0).getValue();
-            if (rhs.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                LogicalVariable varLeft = a.getVariables().get(0);
-                VariableReferenceExpression varRef = (VariableReferenceExpression) rhs;
-                LogicalVariable varRight = varRef.getVariableReference();
-
-                EquivalenceClass ecRight = findEquivClass(varRight, equivClasses);
-                if (ecRight != null) {
-                    ecRight.addMember(varLeft);
-                } else {
-                    List<LogicalVariable> m = new LinkedList<LogicalVariable>();
-                    m.add(varRight);
-                    m.add(varLeft);
-                    EquivalenceClass ec = new EquivalenceClass(m, varRight);
-                    equivClasses.add(ec);
-                    if (AlgebricksConfig.DEBUG) {
-                        AlgebricksConfig.ALGEBRICKS_LOGGER.finest("--- New equivalence class: " + ec + "\n");
-                    }
-                }
-                ecChange = true;
-            } else if (((AbstractLogicalExpression) rhs).getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-                LogicalVariable varLeft = a.getVariables().get(0);
-                List<LogicalVariable> m = new LinkedList<LogicalVariable>();
-                m.add(varLeft);
-                EquivalenceClass ec = new EquivalenceClass(m, (ConstantExpression) rhs);
-                // equivClassesForParent.add(ec);
-                equivClasses.add(ec);
-                ecChange = true;
-            }
-        } else if (op.getOperatorTag() == LogicalOperatorTag.GROUP && !(context.checkIfInDontApplySet(this, op))) {
-            GroupByOperator group = (GroupByOperator) op;
-            Pair<Boolean, Boolean> r1 = processVarExprPairs(group.getGroupByList(), equivClasses);
-            Pair<Boolean, Boolean> r2 = processVarExprPairs(group.getDecorList(), equivClasses);
-            modified = modified || r1.first || r2.first;
-            ecChange = r1.second || r2.second;
-        }
-        if (op.getOperatorTag() == LogicalOperatorTag.PROJECT) {
-            assignVarsNeededByProject((ProjectOperator) op, equivClasses, context);
-        } else {
-            boolean assignRecord = false;
-            if (op.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
-                AssignOperator assignOp = (AssignOperator) op;
-                List<Mutable<ILogicalExpression>> exprRefs = assignOp.getExpressions();
-                for (Mutable<ILogicalExpression> exprRef : exprRefs) {
-                    ILogicalExpression expr = exprRef.getValue();
-                    if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-                        ScalarFunctionCallExpression funExpr = (ScalarFunctionCallExpression) expr;
-                        if (funExpr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR)
-                                || funExpr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR)) {
-                            assignRecord = true;
-                            break;
-                        }
-
-                    }
-                }
-            }
-
-            if (op.getOperatorTag() == LogicalOperatorTag.WRITE
-                    || op.getOperatorTag() == LogicalOperatorTag.INSERT_DELETE
-                    || op.getOperatorTag() == LogicalOperatorTag.INDEX_INSERT_DELETE
-                    || op.getOperatorTag() == LogicalOperatorTag.WRITE_RESULT || assignRecord) {
-                substVisitorForWrites.setEquivalenceClasses(equivClasses);
-                if (op.acceptExpressionTransform(substVisitorForWrites)) {
-                    modified = true;
-                }
-            } else {
-                substVisitor.setEquivalenceClasses(equivClasses);
-                if (op.acceptExpressionTransform(substVisitor)) {
-                    modified = true;
-                    if (op.getOperatorTag() == LogicalOperatorTag.GROUP) {
-                        GroupByOperator group = (GroupByOperator) op;
-                        for (Pair<LogicalVariable, Mutable<ILogicalExpression>> gp : group.getGroupByList()) {
-                            if (gp.first != null
-                                    && gp.second.getValue().getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                                LogicalVariable gv = ((VariableReferenceExpression) gp.second.getValue())
-                                        .getVariableReference();
-                                Iterator<Pair<LogicalVariable, Mutable<ILogicalExpression>>> iter = group.getDecorList()
-                                        .iterator();
-                                while (iter.hasNext()) {
-                                    Pair<LogicalVariable, Mutable<ILogicalExpression>> dp = iter.next();
-                                    if (dp.first == null
-                                            && dp.second.getValue().getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                                        LogicalVariable dv = ((VariableReferenceExpression) dp.second.getValue())
-                                                .getVariableReference();
-                                        if (dv == gv) {
-                                            // The decor variable is redundant,
-                                            // since it is
-                                            // propagated as a grouping
-                                            // variable.
-                                            EquivalenceClass ec1 = findEquivClass(gv, equivClasses);
-                                            if (ec1 != null) {
-                                                ec1.addMember(gp.first);
-                                                ec1.setVariableRepresentative(gp.first);
-                                            } else {
-                                                List<LogicalVariable> varList = new ArrayList<LogicalVariable>();
-                                                varList.add(gp.first);
-                                                varList.add(gv);
-                                                ec1 = new EquivalenceClass(varList, gp.first);
-                                            }
-                                            iter.remove();
-                                            break;
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        return new Pair<Boolean, Boolean>(modified, ecChange);
-    }
-
-    private Pair<Boolean, Boolean> processVarExprPairs(List<Pair<LogicalVariable, Mutable<ILogicalExpression>>> vePairs,
-            List<EquivalenceClass> equivClasses) {
-        boolean ecFromGroup = false;
-        boolean modified = false;
-        for (Pair<LogicalVariable, Mutable<ILogicalExpression>> p : vePairs) {
-            ILogicalExpression expr = p.second.getValue();
-            if (p.first != null && expr.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                VariableReferenceExpression varRef = (VariableReferenceExpression) expr;
-                LogicalVariable rhsVar = varRef.getVariableReference();
-                ecFromGroup = true;
-                EquivalenceClass ecRight = findEquivClass(rhsVar, equivClasses);
-                if (ecRight != null) {
-                    LogicalVariable replacingVar = ecRight.getVariableRepresentative();
-                    if (replacingVar != null && replacingVar != rhsVar) {
-                        varRef.setVariable(replacingVar);
-                        modified = true;
-                    }
-                }
-            }
-        }
-        return new Pair<Boolean, Boolean>(modified, ecFromGroup);
-    }
-
-    // Instead of doing this, we could make Projection to be more expressive and
-    // also take constants (or even expression), at the expense of a more
-    // complex project push down.
-    private void assignVarsNeededByProject(ProjectOperator op, List<EquivalenceClass> equivClasses,
-            IOptimizationContext context) throws AlgebricksException {
-        List<LogicalVariable> prVars = op.getVariables();
-        int sz = prVars.size();
-        for (int i = 0; i < sz; i++) {
-            EquivalenceClass ec = findEquivClass(prVars.get(i), equivClasses);
-            if (ec != null) {
-                if (!ec.representativeIsConst()) {
-                    prVars.set(i, ec.getVariableRepresentative());
-                }
-            }
-        }
-    }
-
-    private final static EquivalenceClass findEquivClass(LogicalVariable var, List<EquivalenceClass> equivClasses) {
-        for (EquivalenceClass ec : equivClasses) {
-            if (ec.contains(var)) {
-                return ec;
-            }
-        }
-        return null;
-    }
-
-    private class VariableSubstitutionVisitor implements ILogicalExpressionReferenceTransform {
-        private List<EquivalenceClass> equivClasses;
-        private IOptimizationContext context;
-        private final boolean doNotSubstWithConst;
-
-        public VariableSubstitutionVisitor(boolean doNotSubstWithConst) {
-            this.doNotSubstWithConst = doNotSubstWithConst;
-        }
-
-        public void setContext(IOptimizationContext context) {
-            this.context = context;
-        }
-
-        public void setEquivalenceClasses(List<EquivalenceClass> equivClasses) {
-            this.equivClasses = equivClasses;
-        }
-
-        @Override
-        public boolean transform(Mutable<ILogicalExpression> exprRef) {
-            ILogicalExpression e = exprRef.getValue();
-            switch (((AbstractLogicalExpression) e).getExpressionTag()) {
-                case VARIABLE: {
-                    // look for a required substitution
-                    LogicalVariable var = ((VariableReferenceExpression) e).getVariableReference();
-                    if (context.shouldNotBeInlined(var)) {
-                        return false;
-                    }
-                    EquivalenceClass ec = findEquivClass(var, equivClasses);
-                    if (ec == null) {
-                        return false;
-                    }
-                    if (ec.representativeIsConst()) {
-                        if (doNotSubstWithConst) {
-                            return false;
-                        }
-                        exprRef.setValue(ec.getConstRepresentative());
-                        return true;
-                    } else {
-                        LogicalVariable r = ec.getVariableRepresentative();
-                        if (!r.equals(var)) {
-                            exprRef.setValue(new VariableReferenceExpression(r));
-                            return true;
-                        } else {
-                            return false;
-                        }
-                    }
-                }
-                case FUNCTION_CALL: {
-                    AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) e;
-                    boolean m = false;
-                    for (Mutable<ILogicalExpression> arg : fce.getArguments()) {
-                        if (transform(arg)) {
-                            m = true;
-                        }
-                    }
-                    return m;
-                }
-                default: {
-                    return false;
-                }
-            }
-        }
-
+public class AsterixInlineVariablesRule extends InlineVariablesRule {
+    
+    public AsterixInlineVariablesRule() {
+        // Do not inline field accesses because doing so would interfere with our access method rewrites.
+        // TODO: For now we must also exclude record constructor functions to avoid breaking our type casting rules
+        // IntroduceStaticTypeCastRule and IntroduceDynamicTypeCastRule. 
+        doNotInlineFuncs.add(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME);
+        doNotInlineFuncs.add(AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX);
+        doNotInlineFuncs.add(AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR);
+        doNotInlineFuncs.add(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR);
     }
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByIndexFieldAccessRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByIndexFieldAccessRule.java
index 6833caf..5c54a4a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByIndexFieldAccessRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByIndexFieldAccessRule.java
@@ -1,6 +1,23 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.optimizer.rules;
 
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.List;
 
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
@@ -16,6 +33,8 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -29,8 +48,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class ByNameToByIndexFieldAccessRule implements IAlgebraicRewriteRule {
@@ -41,81 +58,89 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
         if (op.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
             return false;
         }
         AssignOperator assign = (AssignOperator) op;
-        // if
-        // (assign.getAnnotations().get(AsterixOperatorAnnotations.PUSHED_FIELD_ACCESS)
-        // == null) {
-        // return false;
-        // }
         if (assign.getExpressions().get(0).getValue().getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
             return false;
         }
-        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) assign.getExpressions().get(0)
-                .getValue();
-        if (fce.getFunctionIdentifier() != AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME) {
-            return false;
-        }
-        IVariableTypeEnvironment env = context.getOutputTypeEnvironment(op);
 
-        ILogicalExpression a0 = fce.getArguments().get(0).getValue();
-        if (a0.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            LogicalVariable var1 = context.newVar();
-            ArrayList<LogicalVariable> varArray = new ArrayList<LogicalVariable>(1);
-            varArray.add(var1);
-            ArrayList<Mutable<ILogicalExpression>> exprArray = new ArrayList<Mutable<ILogicalExpression>>(1);
-            exprArray.add(new MutableObject<ILogicalExpression>(a0));
-            AssignOperator assignVar = new AssignOperator(varArray, exprArray);
-            fce.getArguments().get(0).setValue(new VariableReferenceExpression(var1));
-            assignVar.getInputs().add(new MutableObject<ILogicalOperator>(assign.getInputs().get(0).getValue()));
-            assign.getInputs().get(0).setValue(assignVar);
-            context.computeAndSetTypeEnvironmentForOperator(assignVar);
-            context.computeAndSetTypeEnvironmentForOperator(assign);
-        }
+        List<Mutable<ILogicalExpression>> expressions = assign.getExpressions();
+        boolean changed = false;
+        for (int i = 0; i < expressions.size(); i++) {
+            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expressions.get(i).getValue();
+            if (fce.getFunctionIdentifier() != AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME) {
+                continue;
+            }
+            IVariableTypeEnvironment env = context.getOutputTypeEnvironment(op);
 
-        IAType t = (IAType) env.getType(fce.getArguments().get(0).getValue());
-        switch (t.getTypeTag()) {
-            case ANY: {
-                return false;
+            ILogicalExpression a0 = fce.getArguments().get(0).getValue();
+            if (a0.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                LogicalVariable var1 = context.newVar();
+                ArrayList<LogicalVariable> varArray = new ArrayList<LogicalVariable>(1);
+                varArray.add(var1);
+                ArrayList<Mutable<ILogicalExpression>> exprArray = new ArrayList<Mutable<ILogicalExpression>>(1);
+                exprArray.add(new MutableObject<ILogicalExpression>(a0));
+                AssignOperator assignVar = new AssignOperator(varArray, exprArray);
+                fce.getArguments().get(0).setValue(new VariableReferenceExpression(var1));
+                assignVar.getInputs().add(new MutableObject<ILogicalOperator>(assign.getInputs().get(0).getValue()));
+                assign.getInputs().get(0).setValue(assignVar);
+                context.computeAndSetTypeEnvironmentForOperator(assignVar);
+                context.computeAndSetTypeEnvironmentForOperator(assign);
             }
-            case RECORD: {
-                ARecordType recType = (ARecordType) t;
-                ILogicalExpression fai = createFieldAccessByIndex(recType, fce);
-                if (fai == null) {
-                    return false;
-                }
-                assign.getExpressions().get(0).setValue(fai);
-                break;
-            }
-            case UNION: {
-                AUnionType unionT = (AUnionType) t;
-                if (unionT.isNullableType()) {
-                    IAType t2 = unionT.getUnionList().get(1);
-                    if (t2.getTypeTag() == ATypeTag.RECORD) {
-                        ARecordType recType = (ARecordType) t2;
+
+            IAType t = (IAType) env.getType(fce.getArguments().get(0).getValue());
+            try {
+                switch (t.getTypeTag()) {
+                    case ANY: {
+                        return false;
+                    }
+                    case RECORD: {
+                        ARecordType recType = (ARecordType) t;
                         ILogicalExpression fai = createFieldAccessByIndex(recType, fce);
                         if (fai == null) {
                             return false;
                         }
-                        assign.getExpressions().get(0).setValue(fai);
+                        expressions.get(i).setValue(fai);
+                        changed = true;
                         break;
                     }
+                    case UNION: {
+                        AUnionType unionT = (AUnionType) t;
+                        if (unionT.isNullableType()) {
+                            IAType t2 = unionT.getUnionList().get(1);
+                            if (t2.getTypeTag() == ATypeTag.RECORD) {
+                                ARecordType recType = (ARecordType) t2;
+                                ILogicalExpression fai = createFieldAccessByIndex(recType, fce);
+                                if (fai == null) {
+                                    return false;
+                                }
+                                expressions.get(i).setValue(fai);
+                                changed = true;
+                                break;
+                            }
+                        }
+                        throw new NotImplementedException("Union " + unionT);
+                    }
+                    default: {
+                        throw new AlgebricksException("Cannot call field-access on data of type " + t);
+                    }
                 }
-                throw new NotImplementedException("Union " + unionT);
-            }
-            default: {
-                throw new AlgebricksException("Cannot call field-access on data of type " + t);
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
             }
         }
         assign.removeAnnotation(AsterixOperatorAnnotations.PUSHED_FIELD_ACCESS);
-        return true;
+        return changed;
     }
 
-    private static ILogicalExpression createFieldAccessByIndex(ARecordType recType, AbstractFunctionCallExpression fce) {
+    @SuppressWarnings("unchecked")
+    private static ILogicalExpression createFieldAccessByIndex(ARecordType recType, AbstractFunctionCallExpression fce)
+            throws IOException {
         String s = getStringSecondArgument(fce);
         if (s == null) {
             return null;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ConstantFoldingRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ConstantFoldingRule.java
index cf4747b..b0ce342 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ConstantFoldingRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ConstantFoldingRule.java
@@ -1,6 +1,22 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.optimizer.rules;
 
 import java.io.DataInputStream;
+import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.List;
 
@@ -13,6 +29,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryBooleanInspectorImpl;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFamilyProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryIntegerInspector;
 import edu.uci.ics.asterix.formats.nontagged.AqlPrinterFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -22,7 +39,12 @@
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -33,23 +55,23 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.StatefulFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionVisitor;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IPointable;
+import edu.uci.ics.hyracks.data.std.primitive.VoidPointable;
 import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
 
 public class ConstantFoldingRule implements IAlgebraicRewriteRule {
 
@@ -86,11 +108,12 @@
 
     private static final JobGenContext _jobGenCtx = new JobGenContext(null, null, null,
             AqlSerializerDeserializerProvider.INSTANCE, AqlBinaryHashFunctionFactoryProvider.INSTANCE,
-            AqlBinaryComparatorFactoryProvider.INSTANCE, AqlTypeTraitProvider.INSTANCE,
-            AqlBinaryBooleanInspectorImpl.INSTANCE, AqlBinaryIntegerInspector.INSTANCE,
+            AqlBinaryHashFunctionFamilyProvider.INSTANCE, AqlBinaryComparatorFactoryProvider.INSTANCE,
+            AqlTypeTraitProvider.INSTANCE, AqlBinaryBooleanInspectorImpl.FACTORY, AqlBinaryIntegerInspector.FACTORY,
             AqlPrinterFactoryProvider.INSTANCE, AqlNullWriterFactory.INSTANCE, null,
-            AqlLogicalExpressionJobGen.INSTANCE, AqlExpressionTypeComputer.INSTANCE, AqlNullableTypeComputer.INSTANCE,
-            null, null, null, GlobalConfig.DEFAULT_FRAME_SIZE, null);
+            new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter(AqlLogicalExpressionJobGen.INSTANCE),
+            AqlExpressionTypeComputer.INSTANCE, AqlNullableTypeComputer.INSTANCE, null, null, null,
+            GlobalConfig.DEFAULT_FRAME_SIZE, null);
 
     private static final IOperatorSchema[] _emptySchemas = new IOperatorSchema[] {};
 
@@ -100,19 +123,19 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         ILogicalOperator op = opRef.getValue();
         if (context.checkIfInDontApplySet(this, op)) {
             return false;
         }
-        // context.addToDontApplySet(this, op);
         return op.acceptExpressionTransform(cfv);
     }
 
     private class ConstantFoldingVisitor implements ILogicalExpressionVisitor<Pair<Boolean, ILogicalExpression>, Void>,
             ILogicalExpressionReferenceTransform {
 
-        private ArrayBackedValueStorage resStore = new ArrayBackedValueStorage();
+        private IPointable p = VoidPointable.FACTORY.createPointable();
         private ByteBufferInputStream bbis = new ByteBufferInputStream();
         private DataInputStream dis = new DataInputStream(bbis);
 
@@ -138,7 +161,6 @@
             return new Pair<Boolean, ILogicalExpression>(false, expr);
         }
 
-        @SuppressWarnings("unchecked")
         @Override
         public Pair<Boolean, ILogicalExpression> visitScalarFunctionCallExpression(ScalarFunctionCallExpression expr,
                 Void arg) throws AlgebricksException {
@@ -146,24 +168,47 @@
             if (!checkArgs(expr)) {
                 return new Pair<Boolean, ILogicalExpression>(changed, expr);
             }
+            //Current ARecord SerDe assumes a closed record, so we do not constant fold open record constructors
+            if (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR)
+                    || expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.CAST_RECORD)) {
+                return new Pair<Boolean, ILogicalExpression>(false, null);
+            }
+            //Current List SerDe assumes a strongly typed list, so we do not constant fold the list constructors if they are not strongly typed
+            if (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR)
+                    || expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR)) {
+                AbstractCollectionType listType = (AbstractCollectionType) TypeComputerUtilities.getRequiredType(expr);
+                if (listType != null
+                        && (listType.getItemType().getTypeTag() == ATypeTag.ANY || listType.getItemType() instanceof AbstractCollectionType)) {
+                    //case1: listType == null,  could be a nested list inside a list<ANY>
+                    //case2: itemType = ANY
+                    //case3: itemType = a nested list
+                    return new Pair<Boolean, ILogicalExpression>(false, null);
+                }
+            }
             if (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME)) {
                 ARecordType rt = (ARecordType) _emptyTypeEnv.getType(expr.getArguments().get(0).getValue());
                 String str = ((AString) ((AsterixConstantValue) ((ConstantExpression) expr.getArguments().get(1)
                         .getValue()).getValue()).getObject()).getStringValue();
-                int k = rt.findFieldPosition(str);
+                int k;
+                try {
+                    k = rt.findFieldPosition(str);
+                } catch (IOException e) {
+                    throw new AlgebricksException(e);
+                }
                 if (k >= 0) {
                     // wait for the ByNameToByIndex rule to apply
                     return new Pair<Boolean, ILogicalExpression>(changed, expr);
                 }
             }
-            IEvaluatorFactory fact = _jobGenCtx.getExpressionJobGen().createEvaluatorFactory(expr, _emptyTypeEnv,
-                    _emptySchemas, _jobGenCtx);
-            IEvaluator eval = fact.createEvaluator(resStore);
-            resStore.reset();
-            eval.evaluate(null);
+            IScalarEvaluatorFactory fact = _jobGenCtx.getExpressionRuntimeProvider().createEvaluatorFactory(expr,
+                    _emptyTypeEnv, _emptySchemas, _jobGenCtx);
+            IScalarEvaluator eval = fact.createScalarEvaluator(null);
+            eval.evaluate(null, p);
             Object t = _emptyTypeEnv.getType(expr);
+
+            @SuppressWarnings("rawtypes")
             ISerializerDeserializer serde = _jobGenCtx.getSerializerDeserializerProvider().getSerializerDeserializer(t);
-            bbis.setByteBuffer(ByteBuffer.wrap(resStore.getBytes(), resStore.getStartIndex(), resStore.getLength()), 0);
+            bbis.setByteBuffer(ByteBuffer.wrap(p.getByteArray(), p.getStartOffset(), p.getLength()), 0);
             IAObject o;
             try {
                 o = (IAObject) serde.deserialize(dis);
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
index 83dd60f..2c223ee 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
@@ -6,6 +6,7 @@
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -17,7 +18,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AggregateOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class CountVarToCountOneRule implements IAlgebraicRewriteRule {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
index 50aa837..b5cc98d 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
@@ -6,7 +6,7 @@
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
-import edu.uci.ics.hyracks.algebricks.rewriter.rules.AbstractExtractExprRule;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -16,7 +16,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistinctOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.AbstractExtractExprRule;
 
 /**
  * Needed only bc. current Hyracks operators require keys to be fields.
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
index 39df806..ee324f3 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
@@ -4,8 +4,9 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
-import edu.uci.ics.hyracks.algebricks.rewriter.rules.*;
 import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -16,9 +17,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.AbstractExtractExprRule;
 
 public class ExtractOrderExpressionsRule extends  AbstractExtractExprRule  {
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyEqRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyEqRule.java
index 60ea0ea..345f68a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyEqRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyEqRule.java
@@ -7,16 +7,16 @@
 import org.apache.commons.lang3.mutable.MutableObject;
 
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.om.base.AFloat;
+import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
 import edu.uci.ics.asterix.optimizer.base.FuzzyUtils;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -33,14 +33,13 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractBinaryJoinOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class FuzzyEqRule implements IAlgebraicRewriteRule {
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
 
         // current operator is INNERJOIN or LEFTOUTERJOIN or SELECT
@@ -56,11 +55,10 @@
             return false;
         }
 
-        AqlCompiledMetadataDeclarations aqlMetadata = ((AqlMetadataProvider) context.getMetadataProvider())
-                .getMetadataDeclarations();
+        AqlMetadataProvider metadataProvider = ((AqlMetadataProvider) context.getMetadataProvider());
 
         IVariableTypeEnvironment env = context.getOutputTypeEnvironment(op);
-        if (expandFuzzyEq(expRef, context, env, aqlMetadata)) {
+        if (expandFuzzyEq(expRef, context, env, metadataProvider)) {
             context.computeAndSetTypeEnvironmentForOperator(op);
             return true;
         }
@@ -68,7 +66,7 @@
     }
 
     private boolean expandFuzzyEq(Mutable<ILogicalExpression> expRef, IOptimizationContext context,
-            IVariableTypeEnvironment env, AqlCompiledMetadataDeclarations aqlMetadata) throws AlgebricksException {
+            IVariableTypeEnvironment env, AqlMetadataProvider metadataProvider) throws AlgebricksException {
         ILogicalExpression exp = expRef.getValue();
 
         if (exp.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
@@ -78,11 +76,16 @@
         boolean expanded = false;
         AbstractFunctionCallExpression funcExp = (AbstractFunctionCallExpression) exp;
         FunctionIdentifier fi = funcExp.getFunctionIdentifier();
-
         if (fi.equals(AsterixBuiltinFunctions.FUZZY_EQ)) {
             List<Mutable<ILogicalExpression>> inputExps = funcExp.getArguments();
 
+            // TODO: Current hack to be able to optimize selections. 
+            // We change the behavior of this rule for the specific cases of const-var, or for edit-distance functions.
+            boolean useExprAsIs = false;
+
+            String simFuncName = FuzzyUtils.getSimFunction(metadataProvider);
             ArrayList<Mutable<ILogicalExpression>> similarityArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            List<ATypeTag> inputExprTypes = new ArrayList<ATypeTag>();
             for (int i = 0; i < 2; i++) {
                 Mutable<ILogicalExpression> inputExpRef = inputExps.get(i);
                 ILogicalExpression inputExp = inputExpRef.getValue();
@@ -93,24 +96,42 @@
                     VariableReferenceExpression inputVarRef = (VariableReferenceExpression) inputExp;
                     LogicalVariable inputVar = inputVarRef.getVariableReference();
                     IAType t = TypeHelper.getNonOptionalType((IAType) env.getVarType(inputVar));
-                    inputTypeTag = t.getTypeTag();
+                    inputExprTypes.add(t.getTypeTag());
                 } else if (inputExp.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-                    // TODO
-                    // AbstractFunctionCallExpression inputFuncCall =
-                    // (AbstractFunctionCallExpression) inputExp;
-                    throw new NotImplementedException();
+                    // Hack to make sure that we will add the func call as is, without wrapping a tokenizer around.
+                    IAType type = (IAType) context.getExpressionTypeComputer().getType(inputExp, metadataProvider, env);
+                    inputTypeTag = type.getTypeTag();
+                    // Only auto-tokenize strings.
+                    if (inputTypeTag == ATypeTag.STRING) {
+                        // Strings will be auto-tokenized.
+                        inputTypeTag = ATypeTag.UNORDEREDLIST;
+                    } else {
+                        useExprAsIs = true;
+                    }
+                    inputExprTypes.add(inputTypeTag);
                 } else if (inputExp.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-                    // TODO
-                    // ConstantExpression inputConst = (ConstantExpression)
-                    // inputExp;
-                    throw new NotImplementedException();
+                    ConstantExpression inputConst = (ConstantExpression) inputExp;
+                    AsterixConstantValue constVal = (AsterixConstantValue) inputConst.getValue();
+                    inputTypeTag = constVal.getObject().getType().getTypeTag();
+                    inputExprTypes.add(inputTypeTag);
+                    useExprAsIs = true;
                 } else {
                     throw new NotImplementedException();
                 }
 
+                if (simFuncName.equals(FuzzyUtils.EDIT_DISTANCE_FUNCTION_NAME)) {
+                    useExprAsIs = true;
+                }
+            }
+            // TODO: This second loop is only necessary to implement the hack.
+            for (int i = 0; i < inputExprTypes.size(); ++i) {
+                Mutable<ILogicalExpression> inputExpRef = inputExps.get(i);
+                // TODO: Change Jaccard only to accept sets. We should never have to wrap a tokenizer around.
                 // get the tokenizer (if any)
-                FunctionIdentifier tokenizer = FuzzyUtils.getTokenizer(inputTypeTag);
-                if (tokenizer == null) {
+                FunctionIdentifier tokenizer = FuzzyUtils.getTokenizer(inputExprTypes.get(i));
+                if (useExprAsIs) {
+                    similarityArgs.add(inputExpRef);
+                } else if (tokenizer == null) {
                     similarityArgs.add(inputExpRef);
                 } else {
                     ArrayList<Mutable<ILogicalExpression>> tokenizerArguments = new ArrayList<Mutable<ILogicalExpression>>();
@@ -121,62 +142,31 @@
                 }
             }
 
-            // TODO use similarity-*-check
-
-            // similarityArgs.add(new Mutable<ILogicalExpression>(new
-            // ConstantExpression(new FloatLiteral(FuzzyUtils
-            // .getSimThreshold(aqlMetadata)))));
-
-            String simFunctionName = FuzzyUtils.getSimFunction(aqlMetadata);
-
-            // FunctionIdentifier simFunctionIdentifier = new
-            // FunctionIdentifier(AsterixBuiltinFunctions.ASTERIX_NS,
-            // "similarity-" + simFunctionName + "-check");
-
-            FunctionIdentifier simFunctionIdentifier = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-                    "similarity-" + simFunctionName, true);
-
+            FunctionIdentifier simFunctionIdentifier = FuzzyUtils.getFunctionIdentifier(simFuncName);
             ScalarFunctionCallExpression similarityExp = new ScalarFunctionCallExpression(
                     FunctionUtils.getFunctionInfo(simFunctionIdentifier), similarityArgs);
-
-            // ArrayList<Mutable<ILogicalExpression>> atArgs = new
-            // ArrayList<Mutable<ILogicalExpression>>();
-            // atArgs.add(new Mutable<ILogicalExpression>(similarityExp));
-            // atArgs.add(new Mutable<ILogicalExpression>(new
-            // ConstantExpression(new IntegerLiteral(0))));
-
-            // ScalarFunctionCallExpression atExp = new
-            // ScalarFunctionCallExpression(
-            // FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM),
-            // atArgs);
-
-            // expRef.setValue(atExp);
-
-            ArrayList<Mutable<ILogicalExpression>> geArgs = new ArrayList<Mutable<ILogicalExpression>>();
-            geArgs.add(new MutableObject<ILogicalExpression>(similarityExp));
-            float f = FuzzyUtils.getSimThreshold(aqlMetadata);
-            geArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AFloat(f)))));
-
-            ScalarFunctionCallExpression geExp = new ScalarFunctionCallExpression(
-                    FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.GE), geArgs);
-
-            expRef.setValue(geExp);
-
+            // Add annotations from the original fuzzy-eq function.
+            similarityExp.getAnnotations().putAll(funcExp.getAnnotations());
+            ArrayList<Mutable<ILogicalExpression>> cmpArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            cmpArgs.add(new MutableObject<ILogicalExpression>(similarityExp));
+            IAObject simThreshold = FuzzyUtils.getSimThreshold(metadataProvider, simFuncName);
+            cmpArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                    simThreshold))));
+            ScalarFunctionCallExpression cmpExpr = FuzzyUtils.getComparisonExpr(simFuncName, cmpArgs);
+            expRef.setValue(cmpExpr);
             return true;
-
         } else if (fi.equals(AlgebricksBuiltinFunctions.AND) || fi.equals(AlgebricksBuiltinFunctions.OR)) {
             for (int i = 0; i < 2; i++) {
-                if (expandFuzzyEq(funcExp.getArguments().get(i), context, env, aqlMetadata)) {
+                if (expandFuzzyEq(funcExp.getArguments().get(i), context, env, metadataProvider)) {
                     expanded = true;
                 }
             }
         }
-
         return expanded;
     }
 
     @Override
-    public boolean rewritePre( Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
         return false;
     }
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyJoinRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyJoinRule.java
index 8a746eb..420c713 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyJoinRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FuzzyJoinRule.java
@@ -15,13 +15,13 @@
 import edu.uci.ics.asterix.aqlplus.parser.AQLPlusParser;
 import edu.uci.ics.asterix.aqlplus.parser.ParseException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
 import edu.uci.ics.asterix.optimizer.base.FuzzyUtils;
 import edu.uci.ics.asterix.translator.AqlPlusExpressionToPlanTranslator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
@@ -32,6 +32,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IndexedNLJoinExpressionAnnotation;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
@@ -41,11 +42,15 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class FuzzyJoinRule implements IAlgebraicRewriteRule {
 
+    private static HashSet<FunctionIdentifier> simFuncs = new HashSet<FunctionIdentifier>();
+    static {
+        simFuncs.add(AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK);
+    }
+
     private static final String AQLPLUS = ""
             //
             // -- - Stage 3 - --
@@ -125,7 +130,8 @@
     private Collection<LogicalVariable> liveVars = new HashSet<LogicalVariable>();
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
         // current opperator is join
         if (op.getOperatorTag() != LogicalOperatorTag.INNERJOIN
@@ -133,20 +139,30 @@
             return false;
         }
 
-        // find fuzzy join condition
+        // Find GET_ITEM function.
         AbstractBinaryJoinOperator joinOp = (AbstractBinaryJoinOperator) op;
         Mutable<ILogicalExpression> expRef = joinOp.getCondition();
-        Mutable<ILogicalExpression> fuzzyExpRef = getSimilarityExpression(expRef);
-        if (fuzzyExpRef == null) {
+        Mutable<ILogicalExpression> getItemExprRef = getSimilarityExpression(expRef);
+        if (getItemExprRef == null) {
+            return false;
+        }
+        // Check if the GET_ITEM function is on one of the supported similarity-check functions.
+        AbstractFunctionCallExpression getItemFuncExpr = (AbstractFunctionCallExpression) getItemExprRef.getValue();
+        Mutable<ILogicalExpression> argRef = getItemFuncExpr.getArguments().get(0);
+        AbstractFunctionCallExpression simFuncExpr = (AbstractFunctionCallExpression) argRef.getValue();
+        if (!simFuncs.contains(simFuncExpr.getFunctionIdentifier())) {
+            return false;
+        }
+        // Skip this rule based on annotations.
+        if (simFuncExpr.getAnnotations().containsKey(IndexedNLJoinExpressionAnnotation.INSTANCE)) {
             return false;
         }
 
-        AbstractFunctionCallExpression funcExp = (AbstractFunctionCallExpression) fuzzyExpRef.getValue();
         List<Mutable<ILogicalOperator>> inputOps = joinOp.getInputs();
         ILogicalOperator leftInputOp = inputOps.get(0).getValue();
         ILogicalOperator rightInputOp = inputOps.get(1).getValue();
 
-        List<Mutable<ILogicalExpression>> inputExps = funcExp.getArguments();
+        List<Mutable<ILogicalExpression>> inputExps = simFuncExpr.getArguments();
 
         ILogicalExpression inputExp0 = inputExps.get(0).getValue();
         ILogicalExpression inputExp1 = inputExps.get(1).getValue();
@@ -175,6 +191,10 @@
 
         List<LogicalVariable> leftInputPKs = context.findPrimaryKey(leftInputVar);
         List<LogicalVariable> rightInputPKs = context.findPrimaryKey(rightInputVar);
+        // Bail if primary keys could not be inferred.
+        if (leftInputPKs == null || rightInputPKs == null) {
+            return false;
+        }
         // primary key has only one variable
         if (leftInputPKs.size() != 1 || rightInputPKs.size() != 1) {
             return false;
@@ -190,8 +210,7 @@
         //
         // -- - FIRE - --
         //
-        AqlCompiledMetadataDeclarations metadata = ((AqlMetadataProvider) context.getMetadataProvider())
-                .getMetadataDeclarations();
+        AqlMetadataProvider metadataProvider = ((AqlMetadataProvider) context.getMetadataProvider());
         FunctionIdentifier funcId = FuzzyUtils.getTokenizer(leftType.getTypeTag());
         String tokenizer;
         if (funcId == null) {
@@ -200,8 +219,8 @@
             tokenizer = funcId.getName();
         }
 
-        float simThreshold = FuzzyUtils.getSimThreshold(metadata);
-        String simFunction = FuzzyUtils.getSimFunction(metadata);
+        float simThreshold = FuzzyUtils.getSimThreshold(metadataProvider);
+        String simFunction = FuzzyUtils.getSimFunction(metadataProvider);
 
         // finalize AQL+ query
         String prepareJoin;
@@ -247,9 +266,8 @@
         }
         // The translator will compile metadata internally. Run this compilation
         // under the same transaction id as the "outer" compilation.
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlPlusExpressionToPlanTranslator translator = new AqlPlusExpressionToPlanTranslator(mp.getTxnId(),
-                metadata.getMetadataTransactionContext(), counter, null);
+        AqlPlusExpressionToPlanTranslator translator = new AqlPlusExpressionToPlanTranslator(
+                metadataProvider.getJobId(), metadataProvider, counter, null, null);
 
         LogicalOperatorDeepCopyVisitor deepCopyVisitor = new LogicalOperatorDeepCopyVisitor(counter);
 
@@ -315,9 +333,9 @@
         ILogicalOperator outputOp = plan.getRoots().get(0).getValue();
 
         SelectOperator extraSelect = null;
-        if (fuzzyExpRef != expRef) {
+        if (getItemExprRef != expRef) {
             // more than one join condition
-            fuzzyExpRef.setValue(ConstantExpression.TRUE);
+            getItemExprRef.setValue(ConstantExpression.TRUE);
             switch (joinOp.getJoinKind()) {
                 case INNER: {
                     extraSelect = new SelectOperator(expRef);
@@ -343,19 +361,19 @@
         return true;
     }
 
-    /*
-     * look for FUZZY_EQ function call
+    /**
+     * Look for GET_ITEM function call.
      */
     private Mutable<ILogicalExpression> getSimilarityExpression(Mutable<ILogicalExpression> expRef) {
         ILogicalExpression exp = expRef.getValue();
         if (exp.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression funcExp = (AbstractFunctionCallExpression) exp;
-            if (funcExp.getFunctionIdentifier().equals(AsterixBuiltinFunctions.FUZZY_EQ)) {
+            AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) exp;
+            if (funcExpr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.GET_ITEM)) {
                 return expRef;
-            } else if (funcExp.getFunctionIdentifier().equals(AlgebricksBuiltinFunctions.AND)
-                    || funcExp.getFunctionIdentifier().equals(AlgebricksBuiltinFunctions.OR)) {
+            }
+            if (funcExpr.getFunctionIdentifier().equals(AlgebricksBuiltinFunctions.AND)) {
                 for (int i = 0; i < 2; i++) {
-                    Mutable<ILogicalExpression> expRefRet = getSimilarityExpression(funcExp.getArguments().get(i));
+                    Mutable<ILogicalExpression> expRefRet = getSimilarityExpression(funcExpr.getArguments().get(i));
                     if (expRefRet != null) {
                         return expRefRet;
                     }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IfElseToSwitchCaseFunctionRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IfElseToSwitchCaseFunctionRule.java
index 677cb6c..f4f36f5 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IfElseToSwitchCaseFunctionRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IfElseToSwitchCaseFunctionRule.java
@@ -8,6 +8,7 @@
 
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -22,7 +23,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SubplanOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class IfElseToSwitchCaseFunctionRule implements IAlgebraicRewriteRule {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java
deleted file mode 100644
index 42d2aec..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java
+++ /dev/null
@@ -1,123 +0,0 @@
-package edu.uci.ics.asterix.optimizer.rules;
-
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AggregateOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.AbstractConstVarFunVisitor;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-
-
-
-public class InlineAssignIntoAggregateRule implements IAlgebraicRewriteRule {
-
-    @Override
-    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
-        return false;
-    }
-
-    @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
-        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
-        if (op.getOperatorTag() != LogicalOperatorTag.GROUP) {
-            return false;
-        }
-        boolean changed = false;
-        GroupByOperator gbyOp = (GroupByOperator) op;
-        for (ILogicalPlan p : gbyOp.getNestedPlans()) {
-            for (Mutable<ILogicalOperator> r : p.getRoots()) {
-                if (inlined(r)) {
-                    changed = true;
-                }
-            }
-        }
-        return changed;
-    }
-
-    private boolean inlined(Mutable<ILogicalOperator> r) throws AlgebricksException {
-        AbstractLogicalOperator op1 = (AbstractLogicalOperator) r.getValue();
-        if (op1.getOperatorTag() != LogicalOperatorTag.AGGREGATE) {
-            return false;
-        }
-        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op1.getInputs().get(0).getValue();
-        if (op2.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
-            return false;
-        }
-        AggregateOperator agg = (AggregateOperator) op1;
-        AssignOperator assign = (AssignOperator) op2;
-        VarExprSubstitution ves = new VarExprSubstitution(assign.getVariables(), assign.getExpressions());
-        for (Mutable<ILogicalExpression> exprRef : agg.getExpressions()) {
-            ILogicalExpression expr = exprRef.getValue();
-            Pair<Boolean, ILogicalExpression> p = expr.accept(ves, null);
-            if (p.first == true) {
-                exprRef.setValue(p.second);
-            }
-            // AbstractLogicalExpression ale = (AbstractLogicalExpression) expr;
-            // ale.accept(ves, null);
-        }
-        List<Mutable<ILogicalOperator>> op1InpList = op1.getInputs();
-        op1InpList.clear();
-        op1InpList.add(op2.getInputs().get(0));
-        return true;
-    }
-
-    private class VarExprSubstitution extends AbstractConstVarFunVisitor<Pair<Boolean, ILogicalExpression>, Void> {
-
-        private List<LogicalVariable> variables;
-        private List<Mutable<ILogicalExpression>> expressions;
-
-        public VarExprSubstitution(List<LogicalVariable> variables, List<Mutable<ILogicalExpression>> expressions) {
-            this.variables = variables;
-            this.expressions = expressions;
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitConstantExpression(ConstantExpression expr, Void arg) {
-            return new Pair<Boolean, ILogicalExpression>(false, expr);
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitFunctionCallExpression(AbstractFunctionCallExpression expr,
-                Void arg) throws AlgebricksException {
-            boolean changed = false;
-            for (Mutable<ILogicalExpression> eRef : expr.getArguments()) {
-                ILogicalExpression e = eRef.getValue();
-                Pair<Boolean, ILogicalExpression> p = e.accept(this, arg);
-                if (p.first) {
-                    eRef.setValue(p.second);
-                    changed = true;
-                }
-            }
-            return new Pair<Boolean, ILogicalExpression>(changed, expr);
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitVariableReferenceExpression(VariableReferenceExpression expr,
-                Void arg) {
-            LogicalVariable v = expr.getVariableReference();
-            int idx = variables.indexOf(v);
-            if (idx < 0) {
-                return new Pair<Boolean, ILogicalExpression>(false, expr);
-            } else {
-                return new Pair<Boolean, ILogicalExpression>(true, expressions.get(idx).getValue());
-            }
-
-        }
-
-    }
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineUnnestFunctionRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineUnnestFunctionRule.java
new file mode 100644
index 0000000..3e57ded
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineUnnestFunctionRule.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * This rule is to inline unnest functions that are hold by variables.
+ * This rule is to fix issue 201.
+ */
+public class InlineUnnestFunctionRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        if (context.checkIfInDontApplySet(this, op1))
+            return false;
+        context.addToDontApplySet(this, op1);
+        if (op1.getOperatorTag() != LogicalOperatorTag.UNNEST)
+            return false;
+        UnnestOperator unnestOperator = (UnnestOperator) op1;
+        AbstractFunctionCallExpression expr = (AbstractFunctionCallExpression) unnestOperator.getExpressionRef()
+                .getValue();
+        //we only inline for the scan-collection function
+        if (expr.getFunctionIdentifier() != AsterixBuiltinFunctions.SCAN_COLLECTION)
+            return false;
+
+        // inline all variables from an unnesting function call
+        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+        List<Mutable<ILogicalExpression>> args = funcExpr.getArguments();
+        for (int i = 0; i < args.size(); i++) {
+            ILogicalExpression argExpr = args.get(i).getValue();
+            if (argExpr.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                VariableReferenceExpression varExpr = (VariableReferenceExpression) argExpr;
+                inlineVariable(varExpr.getVariableReference(), unnestOperator);
+            }
+        }
+        return true;
+    }
+
+    /**
+     * This method is to inline one variable
+     * 
+     * @param usedVar
+     *            A variable that is used by the scan-collection function in the unnest operator
+     * @param unnestOp
+     *            The unnest operator.
+     * @throws AlgebricksException
+     */
+    private void inlineVariable(LogicalVariable usedVar, UnnestOperator unnestOp) throws AlgebricksException {
+        AbstractFunctionCallExpression expr = (AbstractFunctionCallExpression) unnestOp.getExpressionRef().getValue();
+        List<Pair<AbstractFunctionCallExpression, Integer>> parentAndIndexList = new ArrayList<Pair<AbstractFunctionCallExpression, Integer>>();
+        getParentFunctionExpression(usedVar, expr, parentAndIndexList);
+        ILogicalExpression usedVarOrginExpr = findUsedVarOrigin(usedVar, unnestOp, (AbstractLogicalOperator) unnestOp
+                .getInputs().get(0).getValue());
+        if (usedVarOrginExpr != null) {
+            for (Pair<AbstractFunctionCallExpression, Integer> parentAndIndex : parentAndIndexList) {
+                //we only rewrite the top scan-collection function
+                if (parentAndIndex.first.getFunctionIdentifier() == AsterixBuiltinFunctions.SCAN_COLLECTION
+                        && parentAndIndex.first == expr) {
+                    unnestOp.getExpressionRef().setValue(usedVarOrginExpr);
+                }
+            }
+        }
+    }
+
+    private void getParentFunctionExpression(LogicalVariable usedVar, ILogicalExpression expr,
+            List<Pair<AbstractFunctionCallExpression, Integer>> parentAndIndexList) {
+        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+        List<Mutable<ILogicalExpression>> args = funcExpr.getArguments();
+        for (int i = 0; i < args.size(); i++) {
+            ILogicalExpression argExpr = args.get(i).getValue();
+            if (argExpr.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                VariableReferenceExpression varExpr = (VariableReferenceExpression) argExpr;
+                if (varExpr.getVariableReference().equals(usedVar))
+                    parentAndIndexList.add(new Pair<AbstractFunctionCallExpression, Integer>(funcExpr, i));
+            }
+            if (argExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                getParentFunctionExpression(usedVar, argExpr, parentAndIndexList);
+            }
+        }
+    }
+
+    private ILogicalExpression findUsedVarOrigin(LogicalVariable usedVar, AbstractLogicalOperator parentOp,
+            AbstractLogicalOperator currentOp) throws AlgebricksException {
+        ILogicalExpression ret = null;
+        if (currentOp.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
+            List<LogicalVariable> producedVars = new ArrayList<LogicalVariable>();
+            VariableUtilities.getProducedVariables(currentOp, producedVars);
+            if (producedVars.contains(usedVar)) {
+                AssignOperator assignOp = (AssignOperator) currentOp;
+                int index = assignOp.getVariables().indexOf(usedVar);
+                ILogicalExpression returnedExpr = assignOp.getExpressions().get(index).getValue();
+                if (returnedExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                    AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) returnedExpr;
+                    if (AsterixBuiltinFunctions.isBuiltinUnnestingFunction(funcExpr.getFunctionIdentifier())) {
+                        // we only inline for unnest functions
+                        removeUnecessaryAssign(parentOp, currentOp, assignOp, index);
+                        ret = returnedExpr;
+                    }
+                } else if (returnedExpr.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                    //recusively inline
+                    VariableReferenceExpression varExpr = (VariableReferenceExpression) returnedExpr;
+                    LogicalVariable var = varExpr.getVariableReference();
+                    ILogicalExpression finalExpr = findUsedVarOrigin(var, currentOp,
+                            (AbstractLogicalOperator) currentOp.getInputs().get(0).getValue());
+                    if (finalExpr != null) {
+                        removeUnecessaryAssign(parentOp, currentOp, assignOp, index);
+                        ret = finalExpr;
+                    }
+                }
+            }
+        } else {
+            for (Mutable<ILogicalOperator> child : currentOp.getInputs()) {
+                ILogicalExpression expr = findUsedVarOrigin(usedVar, currentOp,
+                        (AbstractLogicalOperator) child.getValue());
+                if (expr != null) {
+                    ret = expr;
+                }
+            }
+        }
+        return ret;
+    }
+
+    private void removeUnecessaryAssign(AbstractLogicalOperator parentOp, AbstractLogicalOperator currentOp,
+            AssignOperator assignOp, int index) {
+        assignOp.getVariables().remove(index);
+        assignOp.getExpressions().remove(index);
+        if (assignOp.getVariables().size() == 0) {
+            int opIndex = parentOp.getInputs().indexOf(new MutableObject<ILogicalOperator>(currentOp));
+            parentOp.getInputs().get(opIndex).setValue(assignOp.getInputs().get(0).getValue());
+        }
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceBTreeIndexSearchRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceBTreeIndexSearchRule.java
deleted file mode 100644
index 48abbec..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceBTreeIndexSearchRule.java
+++ /dev/null
@@ -1,647 +0,0 @@
-package edu.uci.ics.asterix.optimizer.rules;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-import org.apache.commons.lang3.mutable.MutableObject;
-
-import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.functions.FunctionArgumentsConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
-import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractLogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-
-public class IntroduceBTreeIndexSearchRule extends IntroduceTreeIndexSearchRule {
-
-    private enum LimitType {
-        LOW_INCLUSIVE, LOW_EXCLUSIVE, HIGH_INCLUSIVE, HIGH_EXCLUSIVE, EQUAL
-    }
-
-    @Override
-    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
-        return false;
-    }
-
-    /**
-     * 
-     * Matches one equality of the type var EQ const, where var is bound to an
-     * indexed field.
-     * 
-     * @throws AlgebricksException
-     * 
-     */
-
-    @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
-        AbstractLogicalOperator op0 = (AbstractLogicalOperator) opRef.getValue();
-        if (op0.getOperatorTag() == LogicalOperatorTag.SELECT) {
-            return false;
-        }
-        List<Mutable<ILogicalOperator>> children = op0.getInputs();
-        if (children == null || children.size() < 1) {
-            return false;
-        }
-        Mutable<ILogicalOperator> opRef1 = children.get(0);
-        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef1.getValue();
-        if (context.checkIfInDontApplySet(this, op1)) {
-            return false;
-        }
-
-        if (op1.getOperatorTag() != LogicalOperatorTag.SELECT) {
-            return false;
-        }
-        SelectOperator select = (SelectOperator) op1;
-        ILogicalExpression expr = select.getCondition().getValue();
-
-        if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expr;
-            FunctionIdentifier fi = fce.getFunctionIdentifier();
-            if (!AlgebricksBuiltinFunctions.isComparisonFunction(fi) && fi != AlgebricksBuiltinFunctions.AND) {
-                return false;
-            }
-        } else {
-            return false;
-        }
-
-        ArrayList<IAlgebricksConstantValue> outFilters = new ArrayList<IAlgebricksConstantValue>();
-        ArrayList<LogicalVariable> outComparedVars = new ArrayList<LogicalVariable>();
-        ArrayList<LimitType> outLimits = new ArrayList<LimitType>();
-        ArrayList<Mutable<ILogicalExpression>> outRest = new ArrayList<Mutable<ILogicalExpression>>();
-        ArrayList<Integer> foundedExprList = new ArrayList<Integer>();
-        if (!analyzeCondition(expr, outFilters, outComparedVars, outLimits, outRest, foundedExprList)) {
-            return false;
-        }
-        Mutable<ILogicalOperator> opRef2 = op1.getInputs().get(0);
-        AbstractLogicalOperator op2 = (AbstractLogicalOperator) opRef2.getValue();
-
-        DataSourceScanOperator scanDataset;
-        Mutable<ILogicalOperator> opRef3;
-        AssignOperator assignFieldAccess = null;
-
-        if (op2.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
-            assignFieldAccess = (AssignOperator) op2;
-            opRef3 = op2.getInputs().get(0);
-            AbstractLogicalOperator op3 = (AbstractLogicalOperator) opRef3.getValue();
-            if (op3.getOperatorTag() != LogicalOperatorTag.DATASOURCESCAN) {
-                return false;
-            }
-            scanDataset = (DataSourceScanOperator) op3;
-        } else if (op2.getOperatorTag() == LogicalOperatorTag.DATASOURCESCAN) {
-            scanDataset = (DataSourceScanOperator) op2;
-            opRef3 = opRef2;
-        } else {
-            return false;
-        }
-
-        String datasetName = AnalysisUtil.getDatasetName(scanDataset);
-        if (datasetName == null) {
-            return false;
-        }
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("No metadata for dataset " + datasetName);
-        }
-        if (adecl.getDatasetType() != DatasetType.INTERNAL && adecl.getDatasetType() != DatasetType.FEED) {
-            return false;
-        }
-        IAType t = metadata.findType(adecl.getItemTypeName());
-        if (t.getTypeTag() != ATypeTag.RECORD) {
-            return false;
-        }
-        ARecordType recordType = (ARecordType) t;
-        int fldPos = 0;
-        boolean foundVar = false;
-
-        AqlCompiledIndexDecl primIdxDecl = DatasetUtils.getPrimaryIndex(adecl);
-        List<String> primIdxFields = primIdxDecl.getFieldExprs();
-
-        HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>> foundIdxExprs = new HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>>();
-
-        List<LogicalVariable> varList = (assignFieldAccess != null) ? assignFieldAccess.getVariables() : scanDataset
-                .getVariables();
-
-        for (LogicalVariable var : varList) {
-
-            String fieldName = null;
-            if (assignFieldAccess != null) {
-                AbstractLogicalExpression exprP = (AbstractLogicalExpression) assignFieldAccess.getExpressions()
-                        .get(fldPos).getValue();
-                if (exprP.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
-                    continue;
-                }
-                AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) exprP;
-                FunctionIdentifier fi = fce.getFunctionIdentifier();
-
-                int fieldIndex = -1;
-                if (fi.equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME)) {
-                    ILogicalExpression nameArg = fce.getArguments().get(1).getValue();
-                    if (nameArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-                        return false;
-                    }
-                    ConstantExpression cNameExpr = (ConstantExpression) nameArg;
-                    fieldName = ((AString) ((AsterixConstantValue) cNameExpr.getValue()).getObject()).getStringValue();
-                } else if (fi.equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX)) {
-                    ILogicalExpression idxArg = fce.getArguments().get(1).getValue();
-                    if (idxArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-                        return false;
-                    }
-                    ConstantExpression cNameExpr = (ConstantExpression) idxArg;
-                    fieldIndex = ((AInt32) ((AsterixConstantValue) cNameExpr.getValue()).getObject()).getIntegerValue();
-                } else {
-                    return false;
-                }
-                if (fieldName == null) {
-                    if (recordType.isOpen()) {
-                        continue;
-                    }
-                    fieldName = recordType.getFieldNames()[fieldIndex];
-                }
-            } else { // it is a scan, not an assign
-                if (fldPos >= varList.size() - 1) {
-                    // the last var. is the record itself, so skip it
-                    break;
-                }
-                // so the variable value is one of the partitioning fields
-                fieldName = DatasetUtils.getPartitioningExpressions(adecl).get(fldPos);
-            }
-            foundVar = findIdxExprs(adecl, primIdxFields, primIdxDecl, foundIdxExprs, outComparedVars, var, fieldName);
-            if (foundVar) {
-                break;
-            }
-            fldPos++;
-        }
-        if (!foundVar) {
-            return false;
-        }
-        AqlCompiledIndexDecl picked = findUsableIndex(adecl, foundIdxExprs);
-        boolean res;
-        if (picked == null) {
-            res = false;
-        } else {
-            res = pickIndex(opRef1, opRef3, scanDataset, assignFieldAccess, outFilters, outLimits, adecl, picked,
-                    picked == primIdxDecl, foundIdxExprs, context, outRest, foundedExprList);
-        }
-        context.addToDontApplySet(this, op1);
-        if (res) {
-            OperatorPropertiesUtil.typeOpRec(opRef1, context);
-        }
-        return res;
-    }
-
-    private boolean analyzeCondition(ILogicalExpression cond, List<IAlgebricksConstantValue> outFilters,
-            List<LogicalVariable> outComparedVars, List<LimitType> outLimits, List<Mutable<ILogicalExpression>> outRest,
-            List<Integer> foundedExprList) {
-        if (cond.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) cond;
-            FunctionIdentifier fi = fce.getFunctionIdentifier();
-            if (AlgebricksBuiltinFunctions.isComparisonFunction(fi)) {
-                return analyzeComparisonExpr(fce, outFilters, outComparedVars, outLimits);
-            }
-            boolean found = false;
-            int i = 0;
-            for (Mutable<ILogicalExpression> arg : fce.getArguments()) {
-                outRest.add(arg);
-                ILogicalExpression e = arg.getValue();
-                if (e.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-                    AbstractFunctionCallExpression f2 = (AbstractFunctionCallExpression) e;
-                    if (AlgebricksBuiltinFunctions.isComparisonFunction(f2.getFunctionIdentifier())) {
-                        if (analyzeComparisonExpr(f2, outFilters, outComparedVars, outLimits)) {
-                            foundedExprList.add(i);
-                            found = true;
-                        }
-                    }
-                }
-                i++;
-            }
-            return found;
-        } else {
-            throw new IllegalStateException();
-        }
-    }
-
-    private boolean analyzeComparisonExpr(AbstractFunctionCallExpression ce, List<IAlgebricksConstantValue> outFilters,
-            List<LogicalVariable> outComparedVars, List<LimitType> outLimits) {
-        IAlgebricksConstantValue constFilterVal = null;
-        LogicalVariable fldVar = null;
-        boolean filterIsLeft = false;
-        {
-            ILogicalExpression arg1 = ce.getArguments().get(0).getValue();
-            if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-                ConstantExpression ce1 = (ConstantExpression) arg1;
-                constFilterVal = ce1.getValue();
-                filterIsLeft = true;
-            } else if (arg1.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                VariableReferenceExpression ve1 = (VariableReferenceExpression) arg1;
-                fldVar = ve1.getVariableReference();
-            } else {
-                return false;
-            }
-        }
-
-        {
-            ILogicalExpression arg2 = ce.getArguments().get(1).getValue();
-            if (arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-                if (constFilterVal != null) {
-                    return false;
-                }
-                ConstantExpression ce2 = (ConstantExpression) arg2;
-                constFilterVal = ce2.getValue();
-            } else if (arg2.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-                if (fldVar != null) {
-                    return false;
-                }
-                VariableReferenceExpression ve2 = (VariableReferenceExpression) arg2;
-                fldVar = ve2.getVariableReference();
-            } else {
-                return false;
-            }
-        }
-
-        if (constFilterVal == null || fldVar == null) {
-            return false;
-        }
-        outFilters.add(constFilterVal);
-        outComparedVars.add(fldVar);
-        LimitType limit;
-        ComparisonKind ck = AlgebricksBuiltinFunctions.getComparisonType(ce.getFunctionIdentifier());
-        switch (ck) {
-            case EQ: {
-                limit = LimitType.EQUAL;
-                break;
-            }
-            case GE: {
-                limit = filterIsLeft ? LimitType.HIGH_INCLUSIVE : LimitType.LOW_INCLUSIVE;
-                break;
-            }
-            case GT: {
-                limit = filterIsLeft ? LimitType.HIGH_EXCLUSIVE : LimitType.LOW_EXCLUSIVE;
-                break;
-            }
-            case LE: {
-                limit = filterIsLeft ? LimitType.LOW_INCLUSIVE : LimitType.HIGH_INCLUSIVE;
-                break;
-            }
-            case LT: {
-                limit = filterIsLeft ? LimitType.LOW_EXCLUSIVE : LimitType.HIGH_EXCLUSIVE;
-                break;
-            }
-            case NEQ: {
-                return false;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-        outLimits.add(limit);
-        return true;
-    }
-
-    private boolean pickIndex(Mutable<ILogicalOperator> opRef1, Mutable<ILogicalOperator> opRef3,
-            DataSourceScanOperator scanDataset, AssignOperator assignFieldAccess,
-            ArrayList<IAlgebricksConstantValue> filters, ArrayList<LimitType> limits, AqlCompiledDatasetDecl ddecl,
-            AqlCompiledIndexDecl picked, boolean isPrimaryIdx,
-            HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>> foundIdxExprs, IOptimizationContext context,
-            List<Mutable<ILogicalExpression>> outRest, List<Integer> foundedExprList) throws AlgebricksException {
-        int numKeys = picked.getFieldExprs().size();
-        IAlgebricksConstantValue[] loFilter = new IAlgebricksConstantValue[numKeys];
-        IAlgebricksConstantValue[] hiFilter = new IAlgebricksConstantValue[numKeys];
-        LimitType[] loLimit = new LimitType[numKeys];
-        LimitType[] hiLimit = new LimitType[numKeys];
-        boolean[] loInclusive = new boolean[numKeys];
-        boolean[] hiInclusive = new boolean[numKeys];
-        List<Pair<String, Integer>> psiList = foundIdxExprs.get(picked);
-
-        boolean couldntFigureOut = false;
-        for (Pair<String, Integer> psi : psiList) {
-            int keyPos = indexOf(psi.first, picked.getFieldExprs());
-            if (keyPos < 0) {
-                throw new InternalError();
-            }
-            if (!outRest.isEmpty()) {
-                int exprIdxToBeDeleted = foundedExprList.get(psi.second);
-                outRest.set(exprIdxToBeDeleted, null);
-            }
-            LimitType lim = limits.get(psi.second);
-            boolean out = false;
-            switch (lim) {
-                case EQUAL: {
-                    if (loLimit[keyPos] == null && hiLimit[keyPos] == null) {
-                        loLimit[keyPos] = hiLimit[keyPos] = lim;
-                        loInclusive[keyPos] = hiInclusive[keyPos] = true;
-                        loFilter[keyPos] = hiFilter[keyPos] = filters.get(psi.second);
-                    } else {
-                        couldntFigureOut = true;
-                    }
-                    // hmmm, we would need an inference system here
-                    out = true;
-                    break;
-                }
-                case HIGH_EXCLUSIVE: {
-                    if (hiLimit[keyPos] == null || (hiLimit[keyPos] != null && hiInclusive[keyPos])) {
-                        hiLimit[keyPos] = lim;
-                        hiFilter[keyPos] = filters.get(psi.second);
-                        hiInclusive[keyPos] = false;
-                    } else {
-                        couldntFigureOut = true;
-                        out = true;
-                    }
-                    break;
-                }
-                case HIGH_INCLUSIVE: {
-                    if (hiLimit[keyPos] == null) {
-                        hiLimit[keyPos] = lim;
-                        hiFilter[keyPos] = filters.get(psi.second);
-                        hiInclusive[keyPos] = true;
-                    } else {
-                        couldntFigureOut = true;
-                        out = true;
-                    }
-                    break;
-                }
-                case LOW_EXCLUSIVE: {
-                    if (loLimit[keyPos] == null || (loLimit[keyPos] != null && loInclusive[keyPos])) {
-                        loLimit[keyPos] = lim;
-                        loFilter[keyPos] = filters.get(psi.second);
-                        loInclusive[keyPos] = false;
-                    } else {
-                        couldntFigureOut = true;
-                        out = true;
-                    }
-                    break;
-                }
-                case LOW_INCLUSIVE: {
-                    if (loLimit[keyPos] == null) {
-                        loLimit[keyPos] = lim;
-                        loFilter[keyPos] = filters.get(psi.second);
-                        loInclusive[keyPos] = true;
-                    } else {
-                        couldntFigureOut = true;
-                        out = true;
-                    }
-                    break;
-                }
-                default: {
-                    throw new IllegalStateException();
-                }
-            }
-            if (out) {
-                break;
-            }
-        }
-        if (couldntFigureOut) {
-            return false;
-        }
-
-        // rule out the cases unsupported by the current btree search
-        // implementation
-        for (int i = 1; i < numKeys; i++) {
-            if (loInclusive[i] != loInclusive[0] || hiInclusive[i] != hiInclusive[0]) {
-                return false;
-            }
-            if (loLimit[0] == null && loLimit[i] != null || loLimit[0] != null && loLimit[i] == null) {
-                return false;
-            }
-            if (hiLimit[0] == null && hiLimit[i] != null || hiLimit[0] != null && hiLimit[i] == null) {
-                return false;
-            }
-        }
-        if (loLimit[0] == null) {
-            loInclusive[0] = true;
-        }
-        if (hiLimit[0] == null) {
-            hiInclusive[0] = true;
-        }
-
-        ArrayList<Mutable<ILogicalExpression>> keyExprList = new ArrayList<Mutable<ILogicalExpression>>();
-        ArrayList<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
-        ArrayList<Mutable<ILogicalExpression>> rangeSearchFunArgs = new ArrayList<Mutable<ILogicalExpression>>();
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(picked.getIndexName())));
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(FunctionArgumentsConstants.BTREE_INDEX)));
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-
-        if (loLimit[0] != null) {
-            Mutable<ILogicalExpression> nkRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
-                    new AsterixConstantValue(new AInt32(numKeys))));
-            rangeSearchFunArgs.add(nkRef);
-            for (int i = 0; i < numKeys; i++) {
-                LogicalVariable lokVar = context.newVar();
-                keyVarList.add(lokVar);
-                keyExprList.add(new MutableObject<ILogicalExpression>(new ConstantExpression(loFilter[i])));
-                Mutable<ILogicalExpression> loRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
-                        lokVar));
-                rangeSearchFunArgs.add(loRef);
-            }
-        } else {
-            Mutable<ILogicalExpression> zeroRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
-                    new AsterixConstantValue(new AInt32(0))));
-            rangeSearchFunArgs.add(zeroRef);
-        }
-
-        if (hiLimit[0] != null) {
-            Mutable<ILogicalExpression> nkRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
-                    new AsterixConstantValue(new AInt32(numKeys))));
-            rangeSearchFunArgs.add(nkRef);
-            for (int i = 0; i < numKeys; i++) {
-                LogicalVariable hikVar = context.newVar();
-                keyVarList.add(hikVar);
-                keyExprList.add(new MutableObject<ILogicalExpression>(new ConstantExpression(hiFilter[i])));
-                Mutable<ILogicalExpression> hiRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
-                        hikVar));
-                rangeSearchFunArgs.add(hiRef);
-            }
-        } else {
-            Mutable<ILogicalExpression> zeroRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
-                    new AsterixConstantValue(new AInt32(0))));
-            rangeSearchFunArgs.add(zeroRef);
-        }
-
-        ILogicalExpression loExpr = loInclusive[0] ? ConstantExpression.TRUE : ConstantExpression.FALSE;
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(loExpr));
-        ILogicalExpression hiExpr = hiInclusive[0] ? ConstantExpression.TRUE : ConstantExpression.FALSE;
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(hiExpr));
-
-        AssignOperator assignSearchKeys = new AssignOperator(keyVarList, keyExprList);
-        assignSearchKeys.getInputs().add(scanDataset.getInputs().get(0));
-        assignSearchKeys.setExecutionMode(scanDataset.getExecutionMode());
-
-        IFunctionInfo finfo = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
-        UnnestingFunctionCallExpression rangeSearchFun = new UnnestingFunctionCallExpression(finfo, rangeSearchFunArgs);
-        rangeSearchFun.setReturnsUniqueValues(true);
-
-        List<LogicalVariable> primIdxVarList = scanDataset.getVariables();
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(ddecl).size();
-
-        UnnestMapOperator primIdxUnnestMap;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-
-        String itemTypeName = ddecl.getItemTypeName();
-        ARecordType itemType = (ARecordType) metadata.findType(itemTypeName);
-        if (!isPrimaryIdx) {
-            ArrayList<LogicalVariable> secIdxPrimKeysVarList = new ArrayList<LogicalVariable>(numPrimaryKeys);
-            for (int i = 0; i < numPrimaryKeys; i++) {
-                secIdxPrimKeysVarList.add(context.newVar());
-            }
-            ArrayList<LogicalVariable> secIdxUnnestVars = new ArrayList<LogicalVariable>(numKeys
-                    + secIdxPrimKeysVarList.size());
-            for (int i = 0; i < numKeys; i++) {
-                secIdxUnnestVars.add(context.newVar());
-            }
-            secIdxUnnestVars.addAll(secIdxPrimKeysVarList);
-            UnnestMapOperator secIdxUnnest = new UnnestMapOperator(secIdxUnnestVars, new MutableObject<ILogicalExpression>(
-                    rangeSearchFun), secondaryIndexTypes(ddecl, picked, itemType));
-            secIdxUnnest.getInputs().add(new MutableObject<ILogicalOperator>(assignSearchKeys));
-            secIdxUnnest.setExecutionMode(ExecutionMode.PARTITIONED);
-
-            OrderOperator order = new OrderOperator();
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                Mutable<ILogicalExpression> vRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v));
-                order.getOrderExpressions().add(
-                        new Pair<IOrder, Mutable<ILogicalExpression>>(OrderOperator.ASC_ORDER, vRef));
-            }
-            order.getInputs().add(new MutableObject<ILogicalOperator>(secIdxUnnest));
-            order.setExecutionMode(ExecutionMode.LOCAL);
-
-            List<Mutable<ILogicalExpression>> argList2 = new ArrayList<Mutable<ILogicalExpression>>();
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(FunctionArgumentsConstants.BTREE_INDEX)));
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-            argList2.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(
-                    numPrimaryKeys)))));
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                argList2.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
-            }
-            argList2.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(
-                    numPrimaryKeys)))));
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                argList2.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
-            }
-            argList2.add(new MutableObject<ILogicalExpression>(ConstantExpression.TRUE));
-            argList2.add(new MutableObject<ILogicalExpression>(ConstantExpression.TRUE));
-            IFunctionInfo finfoSearch2 = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
-            AbstractFunctionCallExpression searchPrimIdxFun = new ScalarFunctionCallExpression(finfoSearch2, argList2);
-            primIdxUnnestMap = new UnnestMapOperator(primIdxVarList, new MutableObject<ILogicalExpression>(searchPrimIdxFun),
-                    primaryIndexTypes(metadata, ddecl, itemType));
-            primIdxUnnestMap.getInputs().add(new MutableObject<ILogicalOperator>(order));
-        } else {
-            primIdxUnnestMap = new UnnestMapOperator(primIdxVarList, new MutableObject<ILogicalExpression>(rangeSearchFun),
-                    primaryIndexTypes(metadata, ddecl, itemType));
-            primIdxUnnestMap.getInputs().add(new MutableObject<ILogicalOperator>(assignSearchKeys));
-        }
-
-        primIdxUnnestMap.setExecutionMode(ExecutionMode.PARTITIONED);
-
-        validateRemainingPreds(outRest);
-        if (!outRest.isEmpty()) {
-            ILogicalExpression pulledCond = makeCondition(outRest);
-            SelectOperator selectRest = new SelectOperator(new MutableObject<ILogicalExpression>(pulledCond));
-            if (assignFieldAccess != null) {
-                opRef3.setValue(primIdxUnnestMap);
-                selectRest.getInputs().add(new MutableObject<ILogicalOperator>(assignFieldAccess));
-            } else {
-                selectRest.getInputs().add(new MutableObject<ILogicalOperator>(primIdxUnnestMap));
-            }
-            selectRest.setExecutionMode(((AbstractLogicalOperator) opRef1.getValue()).getExecutionMode());
-            opRef1.setValue(selectRest);
-        } else {
-            primIdxUnnestMap.setExecutionMode(ExecutionMode.PARTITIONED);
-            if (assignFieldAccess != null) {
-                opRef3.setValue(primIdxUnnestMap);
-                opRef1.setValue(assignFieldAccess);
-            } else {
-                opRef1.setValue(primIdxUnnestMap);
-            }
-        }
-
-        return true;
-    }
-
-    private void validateRemainingPreds(List<Mutable<ILogicalExpression>> predList) {
-        for (int i = 0; i < predList.size();) {
-            if (predList.get(i) == null) {
-                predList.remove(i);
-            } else {
-                i++;
-            }
-        }
-    }
-
-    private ILogicalExpression makeCondition(List<Mutable<ILogicalExpression>> predList) {
-        if (predList.size() > 1) {
-            IFunctionInfo finfo = AlgebricksBuiltinFunctions.getBuiltinFunctionInfo(AlgebricksBuiltinFunctions.AND);
-            return new ScalarFunctionCallExpression(finfo, predList);
-        } else {
-            return predList.get(0).getValue();
-        }
-    }
-
-    private static List<Object> secondaryIndexTypes(AqlCompiledDatasetDecl ddecl, AqlCompiledIndexDecl acid,
-            ARecordType itemType) throws AlgebricksException {
-        List<Object> types = new ArrayList<Object>();
-        for (String sk : acid.getFieldExprs()) {
-            types.add(AqlCompiledIndexDecl.keyFieldType(sk, itemType));
-        }
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> t : DatasetUtils
-                .getPartitioningFunctions(ddecl)) {
-            types.add(t.third);
-        }
-        return types;
-    }
-
-    private <T> int indexOf(T value, List<T> coll) {
-        int i = 0;
-        for (T member : coll) {
-            if (member.equals(value)) {
-                return i;
-            }
-            i++;
-        }
-        return -1;
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceDynamicTypeCastRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceDynamicTypeCastRule.java
new file mode 100644
index 0000000..2dce5f6
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceDynamicTypeCastRule.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InsertDeleteOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ProjectOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Dynamically cast a variable from its type to a specified required type, in a
+ * recursive way. It enables: 1. bag-based fields in a record, 2. bidirectional
+ * cast of a open field and a matched closed field, and 3. put in null fields
+ * when necessary.
+ * Here is an example: A record { "hobby": {{"music", "coding"}}, "id": "001",
+ * "name": "Person Three"} which confirms to closed type ( id: string, name:
+ * string, hobby: {{string}}? ) can be cast to an open type (id: string ), or
+ * vice versa.
+ * However, if the input record is a variable, then we don't know its exact
+ * field layout at compile time. For example, records conforming to the same
+ * type can have different field orderings and different open parts. That's why
+ * we need dynamic type casting.
+ * Note that as we can see in the example, the ordering of fields of a record is
+ * not required. Since the open/closed part of a record has completely different
+ * underlying memory/storage layout, a cast-record function will change the
+ * layout as specified at runtime.
+ * Implementation wise, this rule checks the target dataset type and the input
+ * record type, and if the types are different, then it plugs in an assign with
+ * a cast-record function, and projects away the original (uncast) field.
+ */
+public class IntroduceDynamicTypeCastRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        /**
+         * pattern match: sink insert assign
+         * resulting plan: sink-insert-project-assign
+         */
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        if (op1.getOperatorTag() != LogicalOperatorTag.SINK)
+            return false;
+        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op1.getInputs().get(0).getValue();
+        if (op2.getOperatorTag() != LogicalOperatorTag.INSERT_DELETE)
+            return false;
+        InsertDeleteOperator insertDeleteOp = (InsertDeleteOperator) op2;
+        if (insertDeleteOp.getOperation() == InsertDeleteOperator.Kind.DELETE)
+            return false;
+        AbstractLogicalOperator op3 = (AbstractLogicalOperator) op2.getInputs().get(0).getValue();
+        if (op3.getOperatorTag() != LogicalOperatorTag.ASSIGN)
+            return false;
+
+        InsertDeleteOperator insertDeleteOperator = (InsertDeleteOperator) op2;
+        AssignOperator oldAssignOperator = (AssignOperator) op3;
+
+        AqlDataSource dataSource = (AqlDataSource) insertDeleteOperator.getDataSource();
+        IAType[] schemaTypes = (IAType[]) dataSource.getSchemaTypes();
+        ARecordType requiredRecordType = (ARecordType) schemaTypes[schemaTypes.length - 1];
+
+        List<LogicalVariable> usedVariables = new ArrayList<LogicalVariable>();
+        VariableUtilities.getUsedVariables(oldAssignOperator, usedVariables);
+        LogicalVariable inputRecordVar;
+        if (usedVariables.size() > 0) {
+            inputRecordVar = usedVariables.get(0);
+        } else {
+            VariableUtilities.getLiveVariables(oldAssignOperator, usedVariables);
+            inputRecordVar = usedVariables.get(0);
+        }
+        IVariableTypeEnvironment env = oldAssignOperator.computeInputTypeEnvironment(context);
+        ARecordType inputRecordType = (ARecordType) env.getVarType(inputRecordVar);
+
+        boolean needCast = !requiredRecordType.equals(inputRecordType);
+        if (!needCast)
+            return false;
+
+        // insert
+        // project
+        // assign
+        // assign
+        AbstractFunctionCallExpression cast = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CAST_RECORD));
+        ARecordType[] types = new ARecordType[2];
+        types[0] = requiredRecordType;
+        types[1] = inputRecordType;
+        cast.getArguments().add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(inputRecordVar)));
+        cast.setOpaqueParameters(types);
+        LogicalVariable newAssignVar = context.newVar();
+        AssignOperator newAssignOperator = new AssignOperator(newAssignVar, new MutableObject<ILogicalExpression>(cast));
+        newAssignOperator.getInputs().add(new MutableObject<ILogicalOperator>(op3));
+
+        List<LogicalVariable> projectVariables = new ArrayList<LogicalVariable>();
+        VariableUtilities.getProducedVariables(oldAssignOperator, projectVariables);
+        projectVariables.add(newAssignVar);
+        ProjectOperator projectOperator = new ProjectOperator(projectVariables);
+        projectOperator.getInputs().add(new MutableObject<ILogicalOperator>(newAssignOperator));
+
+        ILogicalExpression payloadExpr = new VariableReferenceExpression(newAssignVar);
+        MutableObject<ILogicalExpression> payloadRef = new MutableObject<ILogicalExpression>(payloadExpr);
+        InsertDeleteOperator newInserDeleteOperator = new InsertDeleteOperator(insertDeleteOperator.getDataSource(),
+                payloadRef, insertDeleteOperator.getPrimaryKeyExpressions(), insertDeleteOperator.getOperation());
+        newInserDeleteOperator.getInputs().add(new MutableObject<ILogicalOperator>(projectOperator));
+        insertDeleteOperator.getInputs().clear();
+        op1.getInputs().get(0).setValue(newInserDeleteOperator);
+        return true;
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceEnforcedListTypeRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceEnforcedListTypeRule.java
new file mode 100644
index 0000000..2e8d530
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceEnforcedListTypeRule.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.optimizer.rules.typecast.StaticTypeCastUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractAssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractUnnestOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * This class is to enforce types for function expressions which contain list constructor function calls.
+ * The List constructor is very special because a nested list is of type List<ANY>.
+ * However, the bottom-up type inference (InferTypeRule in algebricks) did not infer that so we need this method to enforce the type.
+ * We do not want to break the generality of algebricks so this method is called in an ASTERIX rule: @ IntroduceEnforcedListTypeRule} .
+ */
+public class IntroduceEnforcedListTypeRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        if (context.checkIfInDontApplySet(this, opRef.getValue()))
+            return false;
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        context.addToDontApplySet(this, opRef.getValue());
+        boolean changed = false;
+
+        /**
+         * rewrite list constructor types for list constructor functions
+         */
+        if (op1.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
+            AbstractAssignOperator assignOp = (AbstractAssignOperator) op1;
+            List<Mutable<ILogicalExpression>> expressions = assignOp.getExpressions();
+            IVariableTypeEnvironment env = assignOp.computeOutputTypeEnvironment(context);
+            changed = rewriteExpressions(expressions, env);
+        }
+        if (op1.getOperatorTag() == LogicalOperatorTag.UNNEST) {
+            AbstractUnnestOperator unnestOp = (AbstractUnnestOperator) op1;
+            List<Mutable<ILogicalExpression>> expressions = Collections.singletonList(unnestOp.getExpressionRef());
+            IVariableTypeEnvironment env = unnestOp.computeOutputTypeEnvironment(context);
+            changed = rewriteExpressions(expressions, env);
+        }
+        return changed;
+    }
+
+    private boolean rewriteExpressions(List<Mutable<ILogicalExpression>> expressions, IVariableTypeEnvironment env)
+            throws AlgebricksException {
+        boolean changed = false;
+        for (Mutable<ILogicalExpression> exprRef : expressions) {
+            ILogicalExpression expr = exprRef.getValue();
+            if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                AbstractFunctionCallExpression argFuncExpr = (AbstractFunctionCallExpression) expr;
+                IAType exprType = (IAType) env.getType(argFuncExpr);
+                changed = changed || StaticTypeCastUtil.rewriteListExpr(argFuncExpr, exprType, exprType, env);
+            }
+        }
+        return changed;
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceInstantLockSearchCallbackRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceInstantLockSearchCallbackRule.java
new file mode 100644
index 0000000..62cca6c
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceInstantLockSearchCallbackRule.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.algebra.operators.CommitOperator;
+import edu.uci.ics.asterix.algebra.operators.physical.BTreeSearchPOperator;
+import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataImplConfig;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.optimizer.rules.am.AccessMethodJobGenParams;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IPhysicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ExtensionOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.DataSourceScanPOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+public class IntroduceInstantLockSearchCallbackRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    private void extractDataSourcesInfo(AbstractLogicalOperator op,
+            Map<String, Triple<Integer, LogicalOperatorTag, IPhysicalOperator>> dataSourcesMap) {
+
+        for (int i = 0; i < op.getInputs().size(); ++i) {
+            AbstractLogicalOperator descendantOp = (AbstractLogicalOperator) op.getInputs().get(i).getValue();
+
+            if (descendantOp.getOperatorTag() == LogicalOperatorTag.UNNEST_MAP) {
+                UnnestMapOperator unnestMapOp = (UnnestMapOperator) descendantOp;
+                ILogicalExpression unnestExpr = unnestMapOp.getExpressionRef().getValue();
+                if (unnestExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                    AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr;
+                    FunctionIdentifier fid = f.getFunctionIdentifier();
+                    if (!fid.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
+                        throw new IllegalStateException();
+                    }
+                    AccessMethodJobGenParams jobGenParams = new AccessMethodJobGenParams();
+                    jobGenParams.readFromFuncArgs(f.getArguments());
+                    boolean isPrimaryIndex = jobGenParams.isPrimaryIndex();
+                    String indexName = jobGenParams.getIndexName();
+                    if (isPrimaryIndex) {
+                        if (dataSourcesMap.containsKey(indexName)) {
+                            ++(dataSourcesMap.get(indexName).first);
+                        } else {
+                            dataSourcesMap.put(indexName, new Triple<Integer, LogicalOperatorTag, IPhysicalOperator>(1,
+                                    LogicalOperatorTag.UNNEST_MAP, unnestMapOp.getPhysicalOperator()));
+                        }
+                    }
+                }
+            } else if (descendantOp.getOperatorTag() == LogicalOperatorTag.DATASOURCESCAN) {
+                DataSourceScanOperator dataSourceScanOp = (DataSourceScanOperator) descendantOp;
+                String datasetName = ((AqlDataSource) dataSourceScanOp.getDataSource()).getDataset().getDatasetName();
+                if (dataSourcesMap.containsKey(datasetName)) {
+                    ++(dataSourcesMap.get(datasetName).first);
+                } else {
+                    dataSourcesMap.put(datasetName, new Triple<Integer, LogicalOperatorTag, IPhysicalOperator>(1,
+                            LogicalOperatorTag.DATASOURCESCAN, dataSourceScanOp.getPhysicalOperator()));
+                }
+            }
+            extractDataSourcesInfo(descendantOp, dataSourcesMap);
+        }
+
+    }
+
+    private boolean checkIfRuleIsApplicable(AbstractLogicalOperator op) {
+        if (op.getPhysicalOperator() == null) {
+            return false;
+        }
+        if (op.getOperatorTag() == LogicalOperatorTag.EXTENSION_OPERATOR) {
+            ExtensionOperator extensionOp = (ExtensionOperator) op;
+            if (extensionOp.getDelegate() instanceof CommitOperator) {
+                return true;
+            }
+        }
+        if (op.getOperatorTag() == LogicalOperatorTag.DISTRIBUTE_RESULT
+                || op.getOperatorTag() == LogicalOperatorTag.WRITE_RESULT) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+
+        if (!checkIfRuleIsApplicable(op)) {
+            return false;
+        }
+        Map<String, Triple<Integer, LogicalOperatorTag, IPhysicalOperator>> dataSourcesMap = new HashMap<String, Triple<Integer, LogicalOperatorTag, IPhysicalOperator>>();
+        extractDataSourcesInfo(op, dataSourcesMap);
+
+        boolean introducedInstantLock = false;
+
+        Iterator<Map.Entry<String, Triple<Integer, LogicalOperatorTag, IPhysicalOperator>>> it = dataSourcesMap
+                .entrySet().iterator();
+        while (it.hasNext()) {
+            Entry<String, Triple<Integer, LogicalOperatorTag, IPhysicalOperator>> entry = it.next();
+            Triple<Integer, LogicalOperatorTag, IPhysicalOperator> triple = entry.getValue();
+            if (triple.first == 1) {
+                AqlMetadataImplConfig aqlMetadataImplConfig = new AqlMetadataImplConfig(true);
+                if (triple.second == LogicalOperatorTag.UNNEST_MAP) {
+                    BTreeSearchPOperator pOperator = (BTreeSearchPOperator) triple.third;
+                    pOperator.setImplConfig(aqlMetadataImplConfig);
+                    introducedInstantLock = true;
+                } else {
+                    DataSourceScanPOperator pOperator = (DataSourceScanPOperator) triple.third;
+                    pOperator.setImplConfig(aqlMetadataImplConfig);
+                    introducedInstantLock = true;
+                }
+            }
+
+        }
+        return introducedInstantLock;
+    }
+}
\ No newline at end of file
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceRTreeIndexSearchRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceRTreeIndexSearchRule.java
deleted file mode 100644
index 7618649..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceRTreeIndexSearchRule.java
+++ /dev/null
@@ -1,398 +0,0 @@
-package edu.uci.ics.asterix.optimizer.rules;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-import org.apache.commons.lang3.mutable.MutableObject;
-
-import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.functions.FunctionArgumentsConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
-import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractLogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-
-public class IntroduceRTreeIndexSearchRule extends IntroduceTreeIndexSearchRule {
-
-    /**
-     * 
-     * Matches spatial-intersect(var, spatialObject) , where var is bound to an
-     * indexed field, and spatialObject is point, line, polygon, circle or
-     * rectangle
-     * 
-     * @throws AlgebricksException
-     * 
-     */
-
-    @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
-        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
-        if (context.checkIfInDontApplySet(this, op1)) {
-            return false;
-        }
-        if (op1.getOperatorTag() != LogicalOperatorTag.SELECT) {
-            return false;
-        }
-
-        SelectOperator select = (SelectOperator) op1;
-        ILogicalExpression expr = select.getCondition().getValue();
-
-        if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expr;
-            FunctionIdentifier fi = fce.getFunctionIdentifier();
-            if (!AsterixBuiltinFunctions.isSpatialFilterFunction(fi) && !fi.equals(AlgebricksBuiltinFunctions.AND)) {
-                return false;
-            }
-        } else {
-            return false;
-        }
-        ArrayList<IAlgebricksConstantValue> outFilters = new ArrayList<IAlgebricksConstantValue>();
-        ArrayList<LogicalVariable> outComparedVars = new ArrayList<LogicalVariable>();
-
-        if (!analyzeCondition(expr, outFilters, outComparedVars)) {
-            return false;
-        }
-        Mutable<ILogicalOperator> opRef2 = op1.getInputs().get(0);
-        AbstractLogicalOperator op2 = (AbstractLogicalOperator) opRef2.getValue();
-
-        DataSourceScanOperator scanDataset;
-        Mutable<ILogicalOperator> opRef3;
-        AssignOperator assignFieldAccess = null;
-
-        if (op2.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
-            assignFieldAccess = (AssignOperator) op2;
-            opRef3 = op2.getInputs().get(0);
-            AbstractLogicalOperator op3 = (AbstractLogicalOperator) opRef3.getValue();
-            if (op3.getOperatorTag() != LogicalOperatorTag.DATASOURCESCAN) {
-                return false;
-            }
-            scanDataset = (DataSourceScanOperator) op3;
-        } else {
-            return false;
-        }
-
-        String datasetName = AnalysisUtil.getDatasetName(scanDataset);
-        if (datasetName == null) {
-            return false;
-        }
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("No metadata for dataset " + datasetName);
-        }
-        if (adecl.getDatasetType() != DatasetType.INTERNAL && adecl.getDatasetType() != DatasetType.FEED) {
-            return false;
-        }
-        IAType t = metadata.findType(adecl.getItemTypeName());
-        if (t.getTypeTag() != ATypeTag.RECORD) {
-            return false;
-        }
-        ARecordType recordType = (ARecordType) t;
-        int fldPos = 0;
-        boolean foundVar = false;
-        int dimension = 0;
-        AqlCompiledIndexDecl primIdxDecl = DatasetUtils.getPrimaryIndex(adecl);
-        List<String> primIdxFields = primIdxDecl.getFieldExprs();
-
-        HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>> foundIdxExprs = new HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>>();
-
-        List<LogicalVariable> varList = assignFieldAccess.getVariables();
-
-        for (LogicalVariable var : varList) {
-
-            String fieldName = null;
-            AbstractLogicalExpression exprP = (AbstractLogicalExpression) assignFieldAccess.getExpressions()
-                    .get(fldPos).getValue();
-            if (exprP.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
-                continue;
-            }
-            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) exprP;
-            FunctionIdentifier fi = fce.getFunctionIdentifier();
-
-            int fieldIndex = -1;
-
-            if (fi.equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME)) {
-                ILogicalExpression nameArg = fce.getArguments().get(1).getValue();
-                if (nameArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-                    return false;
-                }
-                ConstantExpression cNameExpr = (ConstantExpression) nameArg;
-                fieldName = ((AString) ((AsterixConstantValue) cNameExpr.getValue()).getObject()).getStringValue();
-            } else if (fi.equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX)) {
-                ILogicalExpression idxArg = fce.getArguments().get(1).getValue();
-                if (idxArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-                    return false;
-                }
-                ConstantExpression cNameExpr = (ConstantExpression) idxArg;
-                fieldIndex = ((AInt32) ((AsterixConstantValue) cNameExpr.getValue()).getObject()).getIntegerValue();
-            } else {
-                return false;
-            }
-
-            if (fieldName == null) {
-                if (recordType.isOpen()) {
-                    continue;
-                }
-                fieldName = recordType.getFieldNames()[fieldIndex];
-            }
-
-            foundVar = findIdxExprs(adecl, primIdxFields, primIdxDecl, foundIdxExprs, outComparedVars, var, fieldName);
-            if (foundVar) {
-                IAType spatialType = AqlCompiledIndexDecl.keyFieldType(fieldName, recordType);
-                dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
-            }
-
-            fldPos++;
-        }
-        if (!foundVar) {
-            return false;
-        }
-        AqlCompiledIndexDecl picked = findUsableIndex(adecl, foundIdxExprs);
-        boolean res;
-        if (picked == null) {
-            res = false;
-        } else {
-            res = pickIndex(opRef3, scanDataset, assignFieldAccess, outFilters, adecl, picked, picked == primIdxDecl,
-                    context, dimension);
-        }
-        context.addToDontApplySet(this, op1);
-        if (res) {
-            OperatorPropertiesUtil.typeOpRec(opRef, context);
-        }
-        return res;
-    }
-
-    private boolean analyzeCondition(ILogicalExpression cond, List<IAlgebricksConstantValue> outFilters,
-            List<LogicalVariable> outComparedVars) {
-        if (cond.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-            AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) cond;
-            FunctionIdentifier fi = fce.getFunctionIdentifier();
-            if (AsterixBuiltinFunctions.isSpatialFilterFunction(fi)) {
-                return analyzeSpatialFilterExpr(fce, outFilters, outComparedVars);
-            }
-            boolean found = false;
-
-            for (Mutable<ILogicalExpression> arg : fce.getArguments()) {
-                ILogicalExpression e = arg.getValue();
-                if (e.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
-                    AbstractFunctionCallExpression f2 = (AbstractFunctionCallExpression) e;
-                    if (AsterixBuiltinFunctions.isSpatialFilterFunction(f2.getFunctionIdentifier())) {
-                        if (analyzeSpatialFilterExpr(f2, outFilters, outComparedVars)) {
-                            found = true;
-                        }
-                    }
-                }
-            }
-            return found;
-        } else {
-            throw new IllegalStateException();
-        }
-    }
-
-    private boolean analyzeSpatialFilterExpr(AbstractFunctionCallExpression ce,
-            List<IAlgebricksConstantValue> outFilters, List<LogicalVariable> outComparedVars) {
-        IAlgebricksConstantValue constFilterVal = null;
-        LogicalVariable fldVar = null;
-        ILogicalExpression arg1 = ce.getArguments().get(0).getValue();
-        if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-            ConstantExpression ce1 = (ConstantExpression) arg1;
-            constFilterVal = ce1.getValue();
-        } else if (arg1.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-            VariableReferenceExpression ve1 = (VariableReferenceExpression) arg1;
-            fldVar = ve1.getVariableReference();
-        } else {
-            return false;
-        }
-        ILogicalExpression arg2 = ce.getArguments().get(1).getValue();
-        if (arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
-            if (constFilterVal != null) {
-                return false;
-            }
-            ConstantExpression ce2 = (ConstantExpression) arg2;
-            constFilterVal = ce2.getValue();
-        } else if (arg2.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
-            if (fldVar != null) {
-                return false;
-            }
-            VariableReferenceExpression ve2 = (VariableReferenceExpression) arg2;
-            fldVar = ve2.getVariableReference();
-        } else {
-            return false;
-        }
-
-        if (constFilterVal == null || fldVar == null) {
-            return false;
-        }
-
-        outFilters.add(constFilterVal);
-        outComparedVars.add(fldVar);
-        return true;
-    }
-
-    private boolean pickIndex(Mutable<ILogicalOperator> opRef3, DataSourceScanOperator scanDataset,
-            AssignOperator assignFieldAccess, ArrayList<IAlgebricksConstantValue> filters,
-            AqlCompiledDatasetDecl ddecl, AqlCompiledIndexDecl picked, boolean isPrimaryIdx,
-            IOptimizationContext context, int dimension) throws AlgebricksException {
-        int numKeys = dimension * 2;
-
-        ArrayList<Mutable<ILogicalExpression>> keyExprList = new ArrayList<Mutable<ILogicalExpression>>();
-        ArrayList<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
-        ArrayList<Mutable<ILogicalExpression>> rangeSearchFunArgs = new ArrayList<Mutable<ILogicalExpression>>();
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(picked.getIndexName())));
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(FunctionArgumentsConstants.RTREE_INDEX)));
-        rangeSearchFunArgs.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-
-        Mutable<ILogicalExpression> nkRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
-                new AsterixConstantValue(new AInt32(numKeys))));
-        rangeSearchFunArgs.add(nkRef);
-        for (int i = 0; i < numKeys; i++) {
-            LogicalVariable keyVar = context.newVar();
-            keyVarList.add(keyVar);
-
-            AbstractFunctionCallExpression createMBR = new ScalarFunctionCallExpression(
-                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CREATE_MBR));
-            createMBR.getArguments().add(new MutableObject<ILogicalExpression>(new ConstantExpression(filters.get(0))));
-            createMBR.getArguments().add(
-                    new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
-                            new AInt32(dimension)))));
-            createMBR.getArguments().add(
-                    new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(i)))));
-            keyExprList.add(new MutableObject<ILogicalExpression>(createMBR));
-            Mutable<ILogicalExpression> keyVarRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
-                    keyVar));
-            rangeSearchFunArgs.add(keyVarRef);
-        }
-
-        AssignOperator assignSearchKeys = new AssignOperator(keyVarList, keyExprList);
-        assignSearchKeys.getInputs().add(scanDataset.getInputs().get(0));
-        assignSearchKeys.setExecutionMode(scanDataset.getExecutionMode());
-
-        IFunctionInfo finfo = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
-        UnnestingFunctionCallExpression rangeSearchFun = new UnnestingFunctionCallExpression(finfo, rangeSearchFunArgs);
-        rangeSearchFun.setReturnsUniqueValues(true);
-
-        List<LogicalVariable> primIdxVarList = scanDataset.getVariables();
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(ddecl).size();
-
-        UnnestMapOperator primIdxUnnestMap;
-        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-
-        String itemTypeName = ddecl.getItemTypeName();
-        ARecordType itemType = (ARecordType) metadata.findType(itemTypeName);
-        if (!isPrimaryIdx) {
-            ArrayList<LogicalVariable> secIdxPrimKeysVarList = new ArrayList<LogicalVariable>(numPrimaryKeys);
-            for (int i = 0; i < numPrimaryKeys; i++) {
-                secIdxPrimKeysVarList.add(context.newVar());
-            }
-            ArrayList<LogicalVariable> secIdxUnnestVars = new ArrayList<LogicalVariable>(numKeys
-                    + secIdxPrimKeysVarList.size());
-            for (int i = 0; i < numKeys; i++) {
-                secIdxUnnestVars.add(context.newVar());
-            }
-            secIdxUnnestVars.addAll(secIdxPrimKeysVarList);
-            UnnestMapOperator secIdxUnnest = new UnnestMapOperator(secIdxUnnestVars, new MutableObject<ILogicalExpression>(
-                    rangeSearchFun), secondaryIndexTypes(ddecl, picked, itemType, numKeys));
-            secIdxUnnest.getInputs().add(new MutableObject<ILogicalOperator>(assignSearchKeys));
-            secIdxUnnest.setExecutionMode(ExecutionMode.PARTITIONED);
-
-            OrderOperator order = new OrderOperator();
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                Mutable<ILogicalExpression> vRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v));
-                order.getOrderExpressions().add(
-                        new Pair<IOrder, Mutable<ILogicalExpression>>(OrderOperator.ASC_ORDER, vRef));
-            }
-            order.getInputs().add(new MutableObject<ILogicalOperator>(secIdxUnnest));
-            order.setExecutionMode(ExecutionMode.LOCAL);
-
-            List<Mutable<ILogicalExpression>> argList2 = new ArrayList<Mutable<ILogicalExpression>>();
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(FunctionArgumentsConstants.BTREE_INDEX)));
-            argList2.add(new MutableObject<ILogicalExpression>(mkStrConstExpr(ddecl.getName())));
-            argList2.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(
-                    numPrimaryKeys)))));
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                argList2.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
-            }
-            argList2.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(
-                    numPrimaryKeys)))));
-            for (LogicalVariable v : secIdxPrimKeysVarList) {
-                argList2.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
-            }
-            argList2.add(new MutableObject<ILogicalExpression>(ConstantExpression.TRUE));
-            argList2.add(new MutableObject<ILogicalExpression>(ConstantExpression.TRUE));
-            IFunctionInfo finfoSearch2 = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
-            AbstractFunctionCallExpression searchPrimIdxFun = new ScalarFunctionCallExpression(finfoSearch2, argList2);
-            primIdxUnnestMap = new UnnestMapOperator(primIdxVarList, new MutableObject<ILogicalExpression>(searchPrimIdxFun),
-                    primaryIndexTypes(metadata, ddecl, itemType));
-            primIdxUnnestMap.getInputs().add(new MutableObject<ILogicalOperator>(order));
-
-        } else {
-            return false;
-        }
-
-        primIdxUnnestMap.setExecutionMode(ExecutionMode.PARTITIONED);
-        opRef3.setValue(primIdxUnnestMap);
-
-        return true;
-    }
-
-    private static List<Object> secondaryIndexTypes(AqlCompiledDatasetDecl ddecl, AqlCompiledIndexDecl acid,
-            ARecordType itemType, int numKeys) throws AlgebricksException {
-        List<Object> types = new ArrayList<Object>();
-        IAType keyType = AqlCompiledIndexDecl.keyFieldType(acid.getFieldExprs().get(0), itemType);
-        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
-
-        for (int i = 0; i < numKeys; i++) {
-            types.add(nestedKeyType);
-        }
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> t : DatasetUtils
-                .getPartitioningFunctions(ddecl)) {
-            types.add(t.third);
-        }
-        return types;
-    }
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
index 4873ed9..c99e4bc 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
@@ -8,21 +8,22 @@
 
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
 import edu.uci.ics.asterix.metadata.declared.AqlIndex;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl.IndexKind;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -31,6 +32,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
@@ -40,7 +42,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InsertDeleteOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ProjectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class IntroduceSecondaryIndexInsertDeleteRule implements IAlgebraicRewriteRule {
@@ -63,15 +64,23 @@
         }
 
         FunctionIdentifier fid = null;
-        AbstractLogicalOperator op2 = op1;
+        /** op2 is the assign operator which extract primary keys from the record variable */
+        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op1.getInputs().get(0).getValue();
         List<LogicalVariable> recordVar = new ArrayList<LogicalVariable>();
-        while (fid != AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR) {
-            if (op2.getInputs().size() == 0)
-                return false;
-            op2 = (AbstractLogicalOperator) op2.getInputs().get(0).getValue();
-            if (op2.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
-                continue;
-            } else {
+        VariableUtilities.getUsedVariables(op2, recordVar);
+        if (recordVar.size() == 0) {
+            /**
+             * For the case primary key-assignment expressions are constant expressions,
+             * find assign op that creates record to be inserted/deleted.
+             */
+            while (fid != AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR) {
+                if (op2.getInputs().size() == 0) {
+                    return false;
+                }
+                op2 = (AbstractLogicalOperator) op2.getInputs().get(0).getValue();
+                if (op2.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
+                    continue;
+                }
                 AssignOperator assignOp = (AssignOperator) op2;
                 ILogicalExpression assignExpr = assignOp.getExpressions().get(0).getValue();
                 if (assignExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
@@ -80,36 +89,40 @@
                     fid = funcExpr.getFunctionIdentifier();
                 }
             }
+            AssignOperator assignOp2 = (AssignOperator) op2;
+            recordVar.addAll(assignOp2.getVariables());
         }
-        AssignOperator assignOp2 = (AssignOperator) op2;
-        recordVar.addAll(assignOp2.getVariables());
         InsertDeleteOperator insertOp = (InsertDeleteOperator) op1;
         AqlDataSource datasetSource = (AqlDataSource) insertOp.getDataSource();
         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
+        String dataverseName = datasetSource.getId().getDataverseName();
         String datasetName = datasetSource.getId().getDatasetName();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+        Dataset dataset = mp.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
         }
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL)
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
             return false;
+        }
 
         List<LogicalVariable> projectVars = new ArrayList<LogicalVariable>();
         VariableUtilities.getUsedVariables(op1, projectVars);
-        // create operators for secondary index insert
-        String itemTypeName = adecl.getItemTypeName();
-        IAType itemType = metadata.findType(itemTypeName);
+        // Create operators for secondary index insert/delete.
+        String itemTypeName = dataset.getItemTypeName();
+        IAType itemType = mp.findType(dataset.getDataverseName(), itemTypeName);
         if (itemType.getTypeTag() != ATypeTag.RECORD) {
             throw new AlgebricksException("Only record types can be indexed.");
         }
         ARecordType recType = (ARecordType) itemType;
-        List<AqlCompiledIndexDecl> secondaryIndexes = DatasetUtils.getSecondaryIndexes(adecl);
-        if (secondaryIndexes.size() <= 0)
-            return false;
+        List<Index> indexes = mp.getDatasetIndexes(dataset.getDataverseName(), dataset.getDatasetName());
         ILogicalOperator currentTop = op1;
-        for (AqlCompiledIndexDecl index : secondaryIndexes) {
-            List<String> secondaryKeyFields = index.getFieldExprs();
+        boolean hasSecondaryIndex = false;
+        for (Index index : indexes) {
+            if (!index.isSecondaryIndex()) {
+                continue;
+            }
+            hasSecondaryIndex = true;
+            List<String> secondaryKeyFields = index.getKeyFieldNames();
             List<LogicalVariable> secondaryKeyVars = new ArrayList<LogicalVariable>();
             List<Mutable<ILogicalExpression>> expressions = new ArrayList<Mutable<ILogicalExpression>>();
             List<Mutable<ILogicalExpression>> secondaryExpressions = new ArrayList<Mutable<ILogicalExpression>>();
@@ -118,9 +131,13 @@
                         new VariableReferenceExpression(recordVar.get(0)));
                 String[] fieldNames = recType.getFieldNames();
                 int pos = -1;
-                for (int j = 0; j < fieldNames.length; j++)
-                    if (fieldNames[j].equals(secondaryKey))
+                for (int j = 0; j < fieldNames.length; j++) {
+                    if (fieldNames[j].equals(secondaryKey)) {
                         pos = j;
+                        break;
+                    }
+                }
+                // Assumes the indexed field is in the closed portion of the type.
                 Mutable<ILogicalExpression> indexRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
                         new AsterixConstantValue(new AInt32(pos))));
                 AbstractFunctionCallExpression func = new ScalarFunctionCallExpression(
@@ -132,25 +149,31 @@
 
             AssignOperator assign = new AssignOperator(secondaryKeyVars, expressions);
             ProjectOperator project = new ProjectOperator(projectVars);
-            if (index.getKind() == IndexKind.BTREE) {
-                for (LogicalVariable secondaryKeyVar : secondaryKeyVars)
+            assign.getInputs().add(new MutableObject<ILogicalOperator>(project));
+            project.getInputs().add(new MutableObject<ILogicalOperator>(currentTop));
+            context.computeAndSetTypeEnvironmentForOperator(project);
+            context.computeAndSetTypeEnvironmentForOperator(assign);
+            if (index.getIndexType() == IndexType.BTREE || index.getIndexType() == IndexType.WORD_INVIX
+                    || index.getIndexType() == IndexType.NGRAM_INVIX
+                    || index.getIndexType() == IndexType.FUZZY_WORD_INVIX
+                    || index.getIndexType() == IndexType.FUZZY_NGRAM_INVIX) {
+                for (LogicalVariable secondaryKeyVar : secondaryKeyVars) {
                     secondaryExpressions.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
                             secondaryKeyVar)));
-                AqlIndex dataSourceIndex = new AqlIndex(index, metadata, datasetName);
-                IndexInsertDeleteOperator indexUpdate = new IndexInsertDeleteOperator(dataSourceIndex,
-                        insertOp.getPrimaryKeyExpressions(), secondaryExpressions, insertOp.getOperation());
-                indexUpdate.getInputs().add(new MutableObject<ILogicalOperator>(assign));
-                assign.getInputs().add(new MutableObject<ILogicalOperator>(project));
-                project.getInputs().add(new MutableObject<ILogicalOperator>(currentTop));
-                currentTop = indexUpdate;
-                context.computeAndSetTypeEnvironmentForOperator(project);
-                context.computeAndSetTypeEnvironmentForOperator(assign);
-                context.computeAndSetTypeEnvironmentForOperator(indexUpdate);
-            } else if (index.getKind() == IndexKind.RTREE) {
-                IAType spatialType = null;
-                for (String secondaryKey : secondaryKeyFields) {
-                    spatialType = keyFieldType(secondaryKey, recType);
                 }
+                Mutable<ILogicalExpression> filterExpression = createFilterExpression(secondaryKeyVars,
+                        context.getOutputTypeEnvironment(assign), false);
+                AqlIndex dataSourceIndex = new AqlIndex(index, dataverseName, datasetName, mp);
+                IndexInsertDeleteOperator indexUpdate = new IndexInsertDeleteOperator(dataSourceIndex,
+                        insertOp.getPrimaryKeyExpressions(), secondaryExpressions, filterExpression,
+                        insertOp.getOperation());
+                indexUpdate.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                currentTop = indexUpdate;
+                context.computeAndSetTypeEnvironmentForOperator(indexUpdate);
+            } else if (index.getIndexType() == IndexType.RTREE) {
+                Pair<IAType, Boolean> keyPairType = Index
+                        .getNonNullableKeyFieldType(secondaryKeyFields.get(0), recType);
+                IAType spatialType = keyPairType.first;
                 int dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
                 int numKeys = dimension * 2;
                 List<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
@@ -171,38 +194,71 @@
                                     new AInt32(i)))));
                     keyExprList.add(new MutableObject<ILogicalExpression>(createMBR));
                 }
-                for (LogicalVariable secondaryKeyVar : keyVarList)
+                for (LogicalVariable secondaryKeyVar : keyVarList) {
                     secondaryExpressions.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
                             secondaryKeyVar)));
-                AqlIndex dataSourceIndex = new AqlIndex(index, metadata, datasetName);
-                IndexInsertDeleteOperator indexUpdate = new IndexInsertDeleteOperator(dataSourceIndex,
-                        insertOp.getPrimaryKeyExpressions(), secondaryExpressions, insertOp.getOperation());
+                }
                 AssignOperator assignCoordinates = new AssignOperator(keyVarList, keyExprList);
-                indexUpdate.getInputs().add(new MutableObject<ILogicalOperator>(assignCoordinates));
                 assignCoordinates.getInputs().add(new MutableObject<ILogicalOperator>(assign));
-                assign.getInputs().add(new MutableObject<ILogicalOperator>(project));
-                project.getInputs().add(new MutableObject<ILogicalOperator>(currentTop));
-                currentTop = indexUpdate;
-                context.computeAndSetTypeEnvironmentForOperator(project);
-                context.computeAndSetTypeEnvironmentForOperator(assign);
                 context.computeAndSetTypeEnvironmentForOperator(assignCoordinates);
+                // We must enforce the filter if the originating spatial type is nullable.
+                boolean forceFilter = keyPairType.second;
+                Mutable<ILogicalExpression> filterExpression = createFilterExpression(keyVarList,
+                        context.getOutputTypeEnvironment(assignCoordinates), forceFilter);
+                AqlIndex dataSourceIndex = new AqlIndex(index, dataverseName, datasetName, mp);
+                IndexInsertDeleteOperator indexUpdate = new IndexInsertDeleteOperator(dataSourceIndex,
+                        insertOp.getPrimaryKeyExpressions(), secondaryExpressions, filterExpression,
+                        insertOp.getOperation());
+                indexUpdate.getInputs().add(new MutableObject<ILogicalOperator>(assignCoordinates));
+                currentTop = indexUpdate;
                 context.computeAndSetTypeEnvironmentForOperator(indexUpdate);
             }
-
+        }
+        if (!hasSecondaryIndex) {
+            return false;
         }
         op0.getInputs().clear();
         op0.getInputs().add(new MutableObject<ILogicalOperator>(currentTop));
         return true;
     }
 
-    public static IAType keyFieldType(String expr, ARecordType recType) throws AlgebricksException {
-        String[] names = recType.getFieldNames();
-        int n = names.length;
-        for (int i = 0; i < n; i++) {
-            if (names[i].equals(expr)) {
-                return recType.getFieldTypes()[i];
+    @SuppressWarnings("unchecked")
+    private Mutable<ILogicalExpression> createFilterExpression(List<LogicalVariable> secondaryKeyVars,
+            IVariableTypeEnvironment typeEnv, boolean forceFilter) throws AlgebricksException {
+        List<Mutable<ILogicalExpression>> filterExpressions = new ArrayList<Mutable<ILogicalExpression>>();
+        // Add 'is not null' to all nullable secondary index keys as a filtering condition.
+        for (LogicalVariable secondaryKeyVar : secondaryKeyVars) {
+            IAType secondaryKeyType = (IAType) typeEnv.getVarType(secondaryKeyVar);
+            if (!isNullableType(secondaryKeyType) && !forceFilter) {
+                continue;
             }
+            ScalarFunctionCallExpression isNullFuncExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.IS_NULL),
+                    new MutableObject<ILogicalExpression>(new VariableReferenceExpression(secondaryKeyVar)));
+            ScalarFunctionCallExpression notFuncExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.NOT), new MutableObject<ILogicalExpression>(
+                            isNullFuncExpr));
+            filterExpressions.add(new MutableObject<ILogicalExpression>(notFuncExpr));
         }
-        throw new AlgebricksException("Could not find field " + expr + " in the schema.");
+        // No nullable secondary keys.
+        if (filterExpressions.isEmpty()) {
+            return null;
+        }
+        Mutable<ILogicalExpression> filterExpression = null;
+        if (filterExpressions.size() > 1) {
+            // Create a conjunctive condition.
+            filterExpression = new MutableObject<ILogicalExpression>(new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.AND), filterExpressions));
+        } else {
+            filterExpression = filterExpressions.get(0);
+        }
+        return filterExpression;
+    }
+
+    private boolean isNullableType(IAType type) {
+        if (type.getTypeTag() == ATypeTag.UNION) {
+            return ((AUnionType) type).isNullableType();
+        }
+        return false;
     }
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceStaticTypeCastRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceStaticTypeCastRule.java
new file mode 100644
index 0000000..3aae2dd
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceStaticTypeCastRule.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.optimizer.rules.typecast.StaticTypeCastUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InsertDeleteOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Statically cast a constant from its type to a specified required type, in a
+ * recursive way. It enables: 1. bag-based fields in a record, 2. bidirectional
+ * cast of a open field and a matched closed field, and 3. put in null fields
+ * when necessary. It should be fired before the constant folding rule.
+ * This rule is not responsible for type casting between primitive types.
+ * Here is an example: A record { "hobby": {{"music", "coding"}}, "id": "001",
+ * "name": "Person Three"} which confirms to closed type ( id: string, name:
+ * string, hobby: {{string}}? ) can be cast to an open type (id: string ), or
+ * vice versa.
+ * Implementation wise: first, we match the record's type and its target dataset
+ * type to see if it is "cast-able"; second, if the types are cast-able, we
+ * embed the required type into the original producer expression. If the types
+ * are not cast-able, we throw a compile time exception.
+ * Then, at runtime (not in this rule), the corresponding record/list
+ * constructors know what to do by checking the required output type.
+ * TODO: right now record/list constructor of the cast result is not done in the
+ * ConstantFoldingRule and has to go to the runtime, because the
+ * ConstantFoldingRule uses ARecordSerializerDeserializer which seems to have
+ * some problem.
+ */
+public class IntroduceStaticTypeCastRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        /**
+         * pattern match: sink/insert/assign record type is propagated from
+         * insert data source to the record-constructor expression
+         */
+        if (context.checkIfInDontApplySet(this, opRef.getValue()))
+            return false;
+        context.addToDontApplySet(this, opRef.getValue());
+
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        List<LogicalVariable> producedVariables = new ArrayList<LogicalVariable>();
+        LogicalVariable oldRecordVariable;
+
+        if (op1.getOperatorTag() != LogicalOperatorTag.SINK)
+            return false;
+        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op1.getInputs().get(0).getValue();
+        if (op2.getOperatorTag() != LogicalOperatorTag.INSERT_DELETE)
+            return false;
+        InsertDeleteOperator insertDeleteOp = (InsertDeleteOperator) op2;
+        if (insertDeleteOp.getOperation() == InsertDeleteOperator.Kind.DELETE)
+            return false;
+        AbstractLogicalOperator assignOp = (AbstractLogicalOperator) op2.getInputs().get(0).getValue();
+        if (assignOp.getOperatorTag() != LogicalOperatorTag.ASSIGN)
+            return false;
+        /**
+         * get required record type
+         */
+        InsertDeleteOperator insertDeleteOperator = (InsertDeleteOperator) op2;
+        AqlDataSource dataSource = (AqlDataSource) insertDeleteOperator.getDataSource();
+        IAType[] schemaTypes = (IAType[]) dataSource.getSchemaTypes();
+        IAType requiredRecordType = schemaTypes[schemaTypes.length - 1];
+
+        AssignOperator topAssignOperator = (AssignOperator) assignOp;
+        List<LogicalVariable> usedVariables = new ArrayList<LogicalVariable>();
+        VariableUtilities.getUsedVariables(topAssignOperator, usedVariables);
+
+        // the used variable should contain the record that will be inserted
+        // but it will not fail in many cases even if the used variable set is
+        // empty
+        if (usedVariables.size() == 0)
+            return false;
+        oldRecordVariable = usedVariables.get(0);
+        LogicalVariable inputRecordVar = usedVariables.get(0);
+        IVariableTypeEnvironment env = topAssignOperator.computeOutputTypeEnvironment(context);
+        IAType inputRecordType = (IAType) env.getVarType(inputRecordVar);
+
+        AbstractLogicalOperator currentOperator = assignOp;
+        /**
+         * find the assign operator for the "input record" to the insert_delete
+         * operator
+         */
+        do {
+            context.addToDontApplySet(this, currentOperator);
+            if (currentOperator.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
+                producedVariables.clear();
+                VariableUtilities.getProducedVariables(currentOperator, producedVariables);
+                int position = producedVariables.indexOf(oldRecordVariable);
+
+                /**
+                 * set the top-down propagated type
+                 */
+                if (position >= 0) {
+                    AssignOperator originalAssign = (AssignOperator) currentOperator;
+                    List<Mutable<ILogicalExpression>> expressionRefs = originalAssign.getExpressions();
+                    ILogicalExpression expr = expressionRefs.get(position).getValue();
+                    if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+                        // that expression has been rewritten, and it will not
+                        // fail but just return false
+                        if (TypeComputerUtilities.getRequiredType(funcExpr) != null) {
+                            context.computeAndSetTypeEnvironmentForOperator(assignOp);
+                            return false;
+                        }
+                        IVariableTypeEnvironment assignEnv = assignOp.computeOutputTypeEnvironment(context);
+                        StaticTypeCastUtil.rewriteFuncExpr(funcExpr, requiredRecordType, inputRecordType, assignEnv);
+                    }
+                    context.computeAndSetTypeEnvironmentForOperator(originalAssign);
+                }
+            }
+            if (currentOperator.getInputs().size() > 0)
+                currentOperator = (AbstractLogicalOperator) currentOperator.getInputs().get(0).getValue();
+            else
+                break;
+        } while (currentOperator != null);
+        return true;
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java
new file mode 100644
index 0000000..d635942
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.optimizer.rules;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+public class IntroduceTransactionCommitByAssignOpRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        if (op.getOperatorTag() != LogicalOperatorTag.SELECT) {
+            return false;
+        }
+        SelectOperator selectOperator = (SelectOperator) op;
+
+        Mutable<ILogicalOperator> childOfSelect = selectOperator.getInputs().get(0);
+
+        //[Direction] SelectOp(cond1)<--ChildOps... ==> SelectOp(booleanValue of cond1)<--NewAssignOp(cond1)<--ChildOps... 
+        //#. Create an assign-operator with a new local variable and the condition of the select-operator. 
+        //#. Set the input(child operator) of the new assign-operator to input(child operator) of the select-operator.
+        //	 (Later, the newly created assign-operator will apply the condition on behalf of the select-operator, 
+        //    and set the variable of the assign-operator to a boolean value according to the condition evaluation.)
+        //#. Give the select-operator the result boolean value created by the newly created child assign-operator.
+
+        //create an assignOp with a variable and the condition of the select-operator. 
+        LogicalVariable v = context.newVar();
+        AssignOperator assignOperator = new AssignOperator(v, new MutableObject<ILogicalExpression>(selectOperator
+                .getCondition().getValue()));
+
+        //set the input of the new assign-operator to the input of the select-operator.
+        assignOperator.getInputs().add(childOfSelect);
+        
+        //set the result value of the assign-operator to the condition of the select-operator
+        selectOperator.getCondition().setValue(new VariableReferenceExpression(v));//scalarFunctionCallExpression);
+        selectOperator.getInputs().set(0, new MutableObject<ILogicalOperator>(assignOperator));
+
+        context.computeAndSetTypeEnvironmentForOperator(assignOperator);
+
+        //Once this rule is fired, don't apply again.
+        context.addToDontApplySet(this, selectOperator);
+        return true;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTreeIndexSearchRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTreeIndexSearchRule.java
deleted file mode 100644
index bfec8cf..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTreeIndexSearchRule.java
+++ /dev/null
@@ -1,108 +0,0 @@
-package edu.uci.ics.asterix.optimizer.rules;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-
-public abstract class IntroduceTreeIndexSearchRule implements IAlgebraicRewriteRule {
-
-    @Override
-    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
-        return false;
-    }
-
-    /**
-     * just picks the first index for which all the expressions are mentioned
-     */
-    protected AqlCompiledIndexDecl findUsableIndex(AqlCompiledDatasetDecl ddecl,
-            HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>> foundIdxExprs) {
-        for (AqlCompiledIndexDecl acid : foundIdxExprs.keySet()) {
-            List<Pair<String, Integer>> psiList = foundIdxExprs.get(acid);
-            boolean allUsed = true;
-            for (String keyField : acid.getFieldExprs()) {
-                boolean foundKf = false;
-                for (Pair<String, Integer> psi : psiList) {
-                    if (psi.first.equals(keyField)) {
-                        foundKf = true;
-                        break;
-                    }
-                }
-                if (!foundKf) {
-                    allUsed = false;
-                    break;
-                }
-            }
-            if (allUsed) {
-                return acid;
-            }
-        }
-        return null;
-    }
-
-    protected static ConstantExpression mkStrConstExpr(String str) {
-        return new ConstantExpression(new AsterixConstantValue(new AString(str)));
-    }
-
-    protected boolean findIdxExprs(AqlCompiledDatasetDecl ddecl, List<String> primIdxFields,
-            AqlCompiledIndexDecl primIdxDecl, HashMap<AqlCompiledIndexDecl, List<Pair<String, Integer>>> foundIdxExprs,
-            ArrayList<LogicalVariable> comparedVars, LogicalVariable var, String fieldName) {
-        boolean foundVar = false;
-        List<AqlCompiledIndexDecl> idxList = DatasetUtils.findSecondaryIndexesByOneOfTheKeys(ddecl, fieldName);
-        if (primIdxFields.contains(fieldName)) {
-            if (idxList == null) {
-                idxList = new ArrayList<AqlCompiledIndexDecl>(1);
-            }
-            idxList.add(primIdxDecl);
-        }
-        if (idxList != null) {
-            foundVar = true;
-            for (AqlCompiledIndexDecl idx : idxList) {
-                List<Pair<String, Integer>> psi = foundIdxExprs.get(idx);
-                if (psi == null) {
-                    psi = new ArrayList<Pair<String, Integer>>();
-                    foundIdxExprs.put(idx, psi);
-                }
-                int varPos = 0;
-                for (LogicalVariable v : comparedVars) {
-                    if (v == var) {
-                        psi.add(new Pair<String, Integer>(fieldName, varPos));
-                    }
-                    varPos++;
-                }
-            }
-        }
-        return foundVar;
-    }
-
-    protected static List<Object> primaryIndexTypes(AqlCompiledMetadataDeclarations metadata,
-            AqlCompiledDatasetDecl ddecl, IAType itemType) {
-        List<Object> types = new ArrayList<Object>();
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(ddecl);
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> t : partitioningFunctions) {
-            types.add(t.third);
-        }
-        types.add(itemType);
-        return types;
-    }
-
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
index 58f6cba..0a68315 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
@@ -15,6 +15,7 @@
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -37,7 +38,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class LoadRecordFieldsRule implements IAlgebraicRewriteRule {
@@ -50,11 +50,13 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (context.checkIfInDontApplySet(this, op1)) {
             return false;
         }
+
         if (op1.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
             AssignOperator a1 = (AssignOperator) op1;
             ILogicalExpression expr = getFirstExpr(a1);
@@ -209,7 +211,7 @@
      * @param toPushThroughChildRef
      */
     private static void pushAccessAboveOpRef(AssignOperator toPush, Mutable<ILogicalOperator> toPushThroughChildRef,
-            IOptimizationContext context) {
+            IOptimizationContext context) throws AlgebricksException {
         List<Mutable<ILogicalOperator>> tpInpList = toPush.getInputs();
         tpInpList.clear();
         tpInpList.add(new MutableObject<ILogicalOperator>(toPushThroughChildRef.getValue()));
@@ -233,7 +235,7 @@
      * 
      * @param toPush
      */
-    private static boolean findAndEliminateRedundantFieldAccess(AssignOperator assign) {
+    private static boolean findAndEliminateRedundantFieldAccess(AssignOperator assign) throws AlgebricksException {
         ILogicalExpression expr = getFirstExpr(assign);
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expr;
         ILogicalExpression arg0 = f.getArguments().get(0).getValue();
@@ -250,9 +252,20 @@
         if (f.getFunctionIdentifier().equals(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME)) {
             String fldName = ((AString) ((AsterixConstantValue) ce.getValue()).getObject()).getStringValue();
             ILogicalExpression fldExpr = findFieldExpression(assign, recordVar, fldName);
+
             if (fldExpr != null) {
-                assign.getExpressions().get(0).setValue(fldExpr);
-                return true;
+                // check the liveness of the new expression
+                List<LogicalVariable> usedVariables = new ArrayList<LogicalVariable>();
+                fldExpr.getUsedVariables(usedVariables);
+                List<LogicalVariable> liveInputVars = new ArrayList<LogicalVariable>();
+                VariableUtilities.getLiveVariables(assign, liveInputVars);
+                usedVariables.removeAll(liveInputVars);
+                if (usedVariables.size() == 0) {
+                    assign.getExpressions().get(0).setValue(fldExpr);
+                    return true;
+                } else {
+                    return false;
+                }
             } else {
                 return false;
             }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
index 501d6fb..d258ba0 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
@@ -6,6 +6,7 @@
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -23,7 +24,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class NestGroupByRule implements IAlgebraicRewriteRule {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
index 563088e..3a3ff0e 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
@@ -7,6 +7,7 @@
 
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -18,7 +19,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.RunningAggregatePOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.UnpartitionedPropertyComputer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class PullPositionalVariableFromUnnestRule implements IAlgebraicRewriteRule {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java
new file mode 100644
index 0000000..c5a1cb0
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AggregateOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Pushes aggregate functions into a stand alone aggregate operator (no group by). 
+ */
+public class PushAggFuncIntoStandaloneAggregateRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        // Pattern to match: assign <-- aggregate <-- !(group-by)
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        if (op.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
+            return false;
+        }
+        Mutable<ILogicalOperator> opRef2 = op.getInputs().get(0);
+        AbstractLogicalOperator op2 = (AbstractLogicalOperator) opRef2.getValue();
+        if (op2.getOperatorTag() != LogicalOperatorTag.AGGREGATE) {
+            return false;
+        }
+        // If there's a group by below the agg, then we want to have the agg pushed into the group by.
+        Mutable<ILogicalOperator> opRef3 = op2.getInputs().get(0);
+        AbstractLogicalOperator op3 = (AbstractLogicalOperator) opRef3.getValue();
+        if (op3.getOperatorTag() == LogicalOperatorTag.GROUP) {
+            return false;
+        }
+        
+        AssignOperator assignOp = (AssignOperator) op;
+        AggregateOperator aggOp = (AggregateOperator) op2;
+        if (aggOp.getVariables().size() != 1) {
+            return false;
+        }
+
+        // Make sure the agg expr is a listify.
+        ILogicalExpression aggExpr = aggOp.getExpressions().get(0).getValue();
+        if (aggExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return false;
+        }
+        AbstractFunctionCallExpression origAggFuncExpr = (AbstractFunctionCallExpression) aggExpr;
+        if (origAggFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.LISTIFY) {
+            return false;
+        }
+        
+        LogicalVariable aggVar = aggOp.getVariables().get(0);
+        List<LogicalVariable> used = new LinkedList<LogicalVariable>();
+        VariableUtilities.getUsedVariables(assignOp, used);
+        if (!used.contains(aggVar)) {
+            return false;
+        }
+        
+        Mutable<ILogicalExpression> srcAssignExprRef = fingAggFuncExprRef(assignOp.getExpressions(), aggVar);
+        if (srcAssignExprRef == null) {
+        	return false;
+        }
+        AbstractFunctionCallExpression assignFuncExpr = (AbstractFunctionCallExpression) srcAssignExprRef.getValue();
+        FunctionIdentifier aggFuncIdent = AsterixBuiltinFunctions.getAggregateFunction(assignFuncExpr.getFunctionIdentifier());
+        
+        // Push the agg func into the agg op.                
+        AbstractFunctionCallExpression aggOpExpr = (AbstractFunctionCallExpression) aggOp.getExpressions().get(0).getValue();
+        List<Mutable<ILogicalExpression>> aggArgs = new ArrayList<Mutable<ILogicalExpression>>();
+        aggArgs.add(aggOpExpr.getArguments().get(0));
+        AggregateFunctionCallExpression aggFuncExpr = AsterixBuiltinFunctions.makeAggregateFunctionExpression(aggFuncIdent, aggArgs);
+        aggOp.getExpressions().get(0).setValue(aggFuncExpr);
+        
+        // The assign now just "renames" the variable to make sure the upstream plan still works.
+        srcAssignExprRef.setValue(new VariableReferenceExpression(aggVar));
+
+        // Create a new assign for a TRUE variable.
+        LogicalVariable trueVar = context.newVar();
+        AssignOperator trueAssignOp = new AssignOperator(trueVar, new MutableObject<ILogicalExpression>(ConstantExpression.TRUE));
+        
+        ILogicalOperator aggInput = aggOp.getInputs().get(0).getValue();
+        aggOp.getInputs().get(0).setValue(trueAssignOp);
+        trueAssignOp.getInputs().add(new MutableObject<ILogicalOperator>(aggInput));
+        
+        // Set partitioning variable.
+        aggOp.setPartitioningVariable(trueVar);
+        
+        context.computeAndSetTypeEnvironmentForOperator(trueAssignOp);
+        context.computeAndSetTypeEnvironmentForOperator(aggOp);
+        context.computeAndSetTypeEnvironmentForOperator(assignOp);
+        
+        return true;
+    }
+    
+    private Mutable<ILogicalExpression> fingAggFuncExprRef(List<Mutable<ILogicalExpression>> exprRefs, LogicalVariable aggVar) {
+    	for (Mutable<ILogicalExpression> exprRef : exprRefs) {
+            ILogicalExpression expr = exprRef.getValue();
+            if (expr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                continue;
+            }
+            AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+            FunctionIdentifier funcIdent = AsterixBuiltinFunctions.getAggregateFunction(funcExpr.getFunctionIdentifier());
+            if (funcIdent == null) {
+            	// Recursively look in func args.
+            	return fingAggFuncExprRef(funcExpr.getArguments(), aggVar);
+            }
+            // Check if this is the expr that uses aggVar.
+            Collection<LogicalVariable> usedVars = new HashSet<LogicalVariable>();
+            funcExpr.getUsedVariables(usedVars);
+            if (usedVars.contains(aggVar)) {
+            	return exprRef;
+            }
+    	}
+    	return null;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggregateIntoGroupbyRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggregateIntoGroupbyRule.java
index 1b66620..b82ac90 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggregateIntoGroupbyRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggregateIntoGroupbyRule.java
@@ -10,6 +10,8 @@
 import org.apache.commons.lang3.mutable.MutableObject;
 
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -31,9 +33,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorManipulationUtil;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 
 public class PushAggregateIntoGroupbyRule implements IAlgebraicRewriteRule {
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushFieldAccessRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushFieldAccessRule.java
index f61986e..da96872 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushFieldAccessRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushFieldAccessRule.java
@@ -11,11 +11,10 @@
 import edu.uci.ics.asterix.algebra.base.AsterixOperatorAnnotations;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixRuntimeException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AString;
@@ -25,6 +24,8 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -43,9 +44,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.NestedTupleSourceOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 
 public class PushFieldAccessRule implements IAlgebraicRewriteRule {
 
@@ -55,7 +54,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
         if (context.checkIfInDontApplySet(this, op)) {
             return false;
@@ -114,13 +114,12 @@
             return false;
         }
         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-        AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
         AqlSourceId asid = ((IDataSource<AqlSourceId>) scan.getDataSource()).getId();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(asid.getDatasetName());
-        if (adecl == null) {
+        Dataset dataset = mp.findDataset(asid.getDataverseName(), asid.getDatasetName());
+        if (dataset == null) {
             throw new AlgebricksException("Dataset " + asid.getDatasetName() + " not found.");
         }
-        if (adecl.getDatasetType() != DatasetType.INTERNAL && adecl.getDatasetType() != DatasetType.FEED) {
+        if (dataset.getDatasetType() != DatasetType.INTERNAL && dataset.getDatasetType() != DatasetType.FEED) {
             return false;
         }
         ILogicalExpression e1 = accessFun.getArguments().get(1).getValue();
@@ -134,8 +133,8 @@
             fldName = ((AString) obj).getStringValue();
         } else {
             int pos = ((AInt32) obj).getIntegerValue();
-            String tName = adecl.getItemTypeName();
-            IAType t = metadata.findType(tName);
+            String tName = dataset.getItemTypeName();
+            IAType t = mp.findType(dataset.getDataverseName(), tName);
             if (t.getTypeTag() != ATypeTag.RECORD) {
                 return false;
             }
@@ -146,9 +145,16 @@
             fldName = rt.getFieldNames()[pos];
         }
 
-        List<AqlCompiledIndexDecl> idxList = DatasetUtils.findSecondaryIndexesByOneOfTheKeys(adecl, fldName);
+        List<Index> datasetIndexes = mp.getDatasetIndexes(dataset.getDataverseName(), dataset.getDatasetName());
+        boolean hasSecondaryIndex = false;
+        for (Index index : datasetIndexes) {
+            if (index.isSecondaryIndex()) {
+                hasSecondaryIndex = true;
+                break;
+            }
+        }
 
-        return idxList != null && !idxList.isEmpty();
+        return hasSecondaryIndex;
     }
 
     private boolean tryingToPushThroughSelectionWithSameDataSource(AssignOperator access, AbstractLogicalOperator op2) {
@@ -284,13 +290,12 @@
                             IDataSource<AqlSourceId> dataSource = (IDataSource<AqlSourceId>) scan.getDataSource();
                             AqlSourceId asid = dataSource.getId();
                             AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-                            AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-                            AqlCompiledDatasetDecl adecl = metadata.findDataset(asid.getDatasetName());
-                            if (adecl == null) {
+                            Dataset dataset = mp.findDataset(asid.getDataverseName(), asid.getDatasetName());
+                            if (dataset == null) {
                                 throw new AlgebricksException("Dataset " + asid.getDatasetName() + " not found.");
                             }
-                            if (adecl.getDatasetType() != DatasetType.INTERNAL
-                                    && adecl.getDatasetType() != DatasetType.FEED) {
+                            if (dataset.getDatasetType() != DatasetType.INTERNAL
+                                    && dataset.getDatasetType() != DatasetType.FEED) {
                                 setAsFinal(access, context, finalAnnot);
                                 return false;
                             }
@@ -301,8 +306,8 @@
                                 fldName = ((AString) obj).getStringValue();
                             } else {
                                 int pos = ((AInt32) obj).getIntegerValue();
-                                String tName = adecl.getItemTypeName();
-                                IAType t = metadata.findType(tName);
+                                String tName = dataset.getItemTypeName();
+                                IAType t = mp.findType(dataset.getDataverseName(), tName);
                                 if (t.getTypeTag() != ATypeTag.RECORD) {
                                     return false;
                                 }
@@ -313,7 +318,7 @@
                                 }
                                 fldName = rt.getFieldNames()[pos];
                             }
-                            int p = DatasetUtils.getPositionOfPartitioningKeyField(adecl, fldName);
+                            int p = DatasetUtils.getPositionOfPartitioningKeyField(dataset, fldName);
                             if (p < 0) { // not one of the partitioning fields
                                 setAsFinal(access, context, finalAnnot);
                                 return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
index 719f312..641b640 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
@@ -8,6 +8,8 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -23,9 +25,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorManipulationUtil;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 
 
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
index f3af80f..8498807 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
@@ -5,6 +5,7 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -15,7 +16,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InnerJoinOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class PushProperJoinThroughProduct implements IAlgebraicRewriteRule {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java
new file mode 100644
index 0000000..c1aa1ac
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushFunctionsBelowJoin;
+
+/**
+ * Pushes similarity function-call expressions below a join if possible.
+ * Assigns the similarity function-call expressions to new variables, and replaces the original
+ * expression with a corresponding variable reference expression.
+ * This rule can help reduce the cost of computing expensive similarity functions by pushing them below
+ * a join (which may blow up the cardinality).
+ * Also, this rule may help to enable other rules such as common subexpression elimination, again to reduce
+ * the number of calls to expensive similarity functions.
+ * 
+ * Example:
+ * 
+ * Before plan:
+ * assign [$$10] <- [funcA(funcB(simFuncX($$3, $$4)))]
+ *   join (some condition) 
+ *     join_branch_0 where $$3 and $$4 are not live
+ *       ...
+ *     join_branch_1 where $$3 and $$4 are live
+ *       ...
+ * 
+ * After plan:
+ * assign [$$10] <- [funcA(funcB($$11))]
+ *   join (some condition) 
+ *     join_branch_0 where $$3 and $$4 are not live
+ *       ...
+ *     join_branch_1 where $$3 and $$4 are live
+ *       assign[$$11] <- [simFuncX($$3, $$4)]
+ *         ...
+ */
+public class PushSimilarityFunctionsBelowJoin extends PushFunctionsBelowJoin {
+
+    private static final Set<FunctionIdentifier> simFuncIdents = new HashSet<FunctionIdentifier>();
+    static {
+        simFuncIdents.add(AsterixBuiltinFunctions.SIMILARITY_JACCARD);
+        simFuncIdents.add(AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK);
+        simFuncIdents.add(AsterixBuiltinFunctions.EDIT_DISTANCE);
+        simFuncIdents.add(AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK);
+    }
+
+    public PushSimilarityFunctionsBelowJoin() {
+        super(simFuncIdents);
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
index 716d5d0..e2cbd4d 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
@@ -9,6 +9,7 @@
 
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -28,7 +29,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.UnpartitionedPropertyComputer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 /*
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveUnusedOneToOneEquiJoinRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveUnusedOneToOneEquiJoinRule.java
new file mode 100644
index 0000000..9089c42
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveUnusedOneToOneEquiJoinRule.java
@@ -0,0 +1,211 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractLogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractBinaryJoinOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Removes join operators for which all of the following conditions are true:
+ * 1. The live variables of one input branch of the join are not used in the upstream plan
+ * 2. The join is an inner equi join
+ * 3. The join condition only uses variables that correspond to primary keys of the same dataset    
+ * Notice that the last condition implies a 1:1 join, i.e., the join does not change the result cardinality.
+ * 
+ * Joins that satisfy the above conditions may be introduced by other rules 
+ * which use surrogate optimizations. Such an optimization aims to reduce data copies and communication costs by
+ * using the primary keys as surrogates for the desired data items. Typically,
+ * such a surrogate-based plan introduces a top-level join to finally resolve
+ * the surrogates to the desired data items. 
+ * In case the upstream plan does not require the original data items at all, such a top-level join is unnecessary.
+ * The purpose of this rule is to remove such unnecessary joins.
+ */
+public class RemoveUnusedOneToOneEquiJoinRule implements IAlgebraicRewriteRule {
+
+    private final Set<LogicalVariable> parentsUsedVars = new HashSet<LogicalVariable>();
+    private final List<LogicalVariable> usedVars = new ArrayList<LogicalVariable>();
+    private final List<LogicalVariable> liveVars = new ArrayList<LogicalVariable>();
+    private final List<LogicalVariable> pkVars = new ArrayList<LogicalVariable>();
+    private final List<DataSourceScanOperator> dataScans = new ArrayList<DataSourceScanOperator>();
+    private boolean hasRun = false;
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        if (hasRun) {
+            return false;
+        }
+        hasRun = true;
+        if (removeUnusedJoin(opRef)) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        return false;
+    }
+
+    private boolean removeUnusedJoin(Mutable<ILogicalOperator> opRef) throws AlgebricksException {
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        boolean modified = false;
+
+        usedVars.clear();
+        VariableUtilities.getUsedVariables(op, usedVars);
+        // Propagate used variables from parents downwards.
+        parentsUsedVars.addAll(usedVars);
+
+        int numInputs = op.getInputs().size();
+        for (int i = 0; i < numInputs; i++) {
+            Mutable<ILogicalOperator> childOpRef = op.getInputs().get(i);
+            int unusedJoinBranchIndex = removeJoinFromInputBranch(childOpRef);
+            if (unusedJoinBranchIndex >= 0) {
+                int usedBranchIndex = (unusedJoinBranchIndex == 0) ? 1 : 0;
+                // Remove join at input index i, by hooking up op's input i with 
+                // the join's branch at unusedJoinBranchIndex.
+                AbstractBinaryJoinOperator joinOp = (AbstractBinaryJoinOperator) childOpRef.getValue();
+                op.getInputs().set(i, joinOp.getInputs().get(usedBranchIndex));
+                modified = true;
+            }
+            // Descend into children.
+            if (removeUnusedJoin(childOpRef)) {
+                modified = true;
+            }
+        }
+        return modified;
+    }
+
+    private int removeJoinFromInputBranch(Mutable<ILogicalOperator> opRef) throws AlgebricksException {
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        if (op.getOperatorTag() != LogicalOperatorTag.INNERJOIN) {
+            return -1;
+        }
+
+        AbstractBinaryJoinOperator joinOp = (AbstractBinaryJoinOperator) op;
+        // Make sure the join is an equi-join.
+        if (!isEquiJoin(joinOp.getCondition())) {
+            return -1;
+        }
+
+        int unusedJoinBranchIndex = -1;
+        for (int i = 0; i < joinOp.getInputs().size(); i++) {
+            liveVars.clear();
+            VariableUtilities.getLiveVariables(joinOp.getInputs().get(i).getValue(), liveVars);
+            liveVars.retainAll(parentsUsedVars);
+            if (liveVars.isEmpty()) {
+                // None of the live variables from this branch are used by its parents.
+                unusedJoinBranchIndex = i;
+                break;
+            }
+        }
+        if (unusedJoinBranchIndex < 0) {
+            // The variables from both branches are used in the upstream plan. We cannot remove this join.
+            return -1;
+        }
+
+        // Check whether one of the join branches is unused.
+        usedVars.clear();
+        VariableUtilities.getUsedVariables(joinOp, usedVars);
+
+        // Check whether all used variables originate from primary keys of exactly the same dataset.
+        // Collect a list of datascans whose primary key variables are used in the join condition.
+        gatherProducingDataScans(opRef, usedVars, dataScans);
+
+        // Check that all datascans scan the same dataset, and that the join condition
+        // only used primary key variables of those datascans.
+        for (int i = 0; i < dataScans.size(); i++) {
+            if (i > 0) {
+                AqlDataSource prevAqlDataSource = (AqlDataSource) dataScans.get(i - 1).getDataSource();
+                AqlDataSource currAqlDataSource = (AqlDataSource) dataScans.get(i).getDataSource();
+                if (!prevAqlDataSource.getDataset().equals(currAqlDataSource.getDataset())) {
+                    return -1;
+                }
+            }
+            // Remove from the used variables all the primary key vars of this dataset.
+            fillPKVars(dataScans.get(i), pkVars);
+            usedVars.removeAll(pkVars);
+        }
+        if (!usedVars.isEmpty()) {
+            // The join condition also uses some other variables that are not primary
+            // keys from datasource scans of the same dataset.
+            return -1;
+        }
+        return unusedJoinBranchIndex;
+    }
+
+    private void gatherProducingDataScans(Mutable<ILogicalOperator> opRef, List<LogicalVariable> joinUsedVars,
+            List<DataSourceScanOperator> dataScans) {
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        if (op.getOperatorTag() != LogicalOperatorTag.DATASOURCESCAN) {
+            for (Mutable<ILogicalOperator> inputOp : op.getInputs()) {
+                gatherProducingDataScans(inputOp, joinUsedVars, dataScans);
+            }
+            return;
+        }
+        DataSourceScanOperator dataScan = (DataSourceScanOperator) op;
+        fillPKVars(dataScan, pkVars);
+        // Check if join uses all PK vars.
+        if (joinUsedVars.containsAll(pkVars)) {
+            dataScans.add(dataScan);
+        }
+    }
+
+    private void fillPKVars(DataSourceScanOperator dataScan, List<LogicalVariable> pkVars) {
+        pkVars.clear();
+        AqlDataSource aqlDataSource = (AqlDataSource) dataScan.getDataSource();
+        int numPKs = DatasetUtils.getPartitioningKeys(aqlDataSource.getDataset()).size();
+        pkVars.clear();
+        for (int i = 0; i < numPKs; i++) {
+            pkVars.add(dataScan.getVariables().get(i));
+        }
+    }
+
+    private boolean isEquiJoin(Mutable<ILogicalExpression> conditionExpr) {
+        AbstractLogicalExpression expr = (AbstractLogicalExpression) conditionExpr.getValue();
+        if (expr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+            AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+            FunctionIdentifier funcIdent = funcExpr.getFunctionIdentifier();
+            if (funcIdent != AlgebricksBuiltinFunctions.AND && funcIdent != AlgebricksBuiltinFunctions.EQ) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java
new file mode 100644
index 0000000..30ed8e7
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java
@@ -0,0 +1,94 @@
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.algebra.operators.CommitOperator;
+import edu.uci.ics.asterix.algebra.operators.physical.CommitPOperator;
+import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ExtensionOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IndexInsertDeleteOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InsertDeleteOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SinkOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+public class ReplaceSinkOpWithCommitOpRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        // TODO Auto-generated method stub
+        return false;
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        if (op.getOperatorTag() != LogicalOperatorTag.SINK) {
+            return false;
+        }
+        SinkOperator sinkOperator = (SinkOperator) op;
+
+        List<Mutable<ILogicalExpression>> primaryKeyExprs = null;
+        int datasetId = 0;
+        AbstractLogicalOperator descendantOp = (AbstractLogicalOperator) sinkOperator.getInputs().get(0).getValue();
+        while (descendantOp != null) {
+            if (descendantOp.getOperatorTag() == LogicalOperatorTag.INDEX_INSERT_DELETE) {
+                IndexInsertDeleteOperator indexInsertDeleteOperator = (IndexInsertDeleteOperator) descendantOp;
+                primaryKeyExprs = indexInsertDeleteOperator.getPrimaryKeyExpressions();
+                datasetId = ((AqlDataSource) indexInsertDeleteOperator.getDataSourceIndex().getDataSource()).getDataset().getDatasetId();
+                break;
+            } else if (descendantOp.getOperatorTag() == LogicalOperatorTag.INSERT_DELETE) {
+                InsertDeleteOperator insertDeleteOperator = (InsertDeleteOperator) descendantOp;
+                primaryKeyExprs = insertDeleteOperator.getPrimaryKeyExpressions();
+                datasetId = ((AqlDataSource) insertDeleteOperator.getDataSource()).getDataset().getDatasetId();
+                break;
+            }
+            descendantOp = (AbstractLogicalOperator) descendantOp.getInputs().get(0).getValue();
+        }
+
+        if (primaryKeyExprs != null) {
+
+            //copy primaryKeyExprs
+            List<LogicalVariable> primaryKeyLogicalVars = new ArrayList<LogicalVariable>();
+            for (Mutable<ILogicalExpression> expr : primaryKeyExprs) {
+                VariableReferenceExpression varRefExpr = (VariableReferenceExpression)expr.getValue();
+                primaryKeyLogicalVars.add(new LogicalVariable(varRefExpr.getVariableReference().getId()));
+            }
+
+            //get JobId(TransactorId)
+            AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
+            JobId jobId = mp.getJobId();
+
+            //create the logical and physical operator
+            CommitOperator commitOperator = new CommitOperator(primaryKeyLogicalVars);
+            CommitPOperator commitPOperator = new CommitPOperator(jobId, datasetId, primaryKeyLogicalVars, mp.isWriteTransaction());
+            commitOperator.setPhysicalOperator(commitPOperator);
+
+            //create ExtensionOperator and put the commitOperator in it.
+            ExtensionOperator extensionOperator = new ExtensionOperator(commitOperator);
+            extensionOperator.setPhysicalOperator(commitPOperator);
+            
+            //update plan link
+            extensionOperator.getInputs().add(sinkOperator.getInputs().get(0));
+            context.computeAndSetTypeEnvironmentForOperator(extensionOperator);
+            opRef.setValue(extensionOperator);
+        }
+
+        return true;
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
index 8a7132d..9c7594c 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
@@ -6,15 +6,18 @@
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
-import edu.uci.ics.hyracks.algebricks.rewriter.util.JoinUtils;
 import edu.uci.ics.asterix.algebra.operators.physical.BTreeSearchPOperator;
+import edu.uci.ics.asterix.algebra.operators.physical.InvertedIndexPOperator;
 import edu.uci.ics.asterix.algebra.operators.physical.RTreeSearchPOperator;
-import edu.uci.ics.asterix.common.functions.FunctionArgumentsConstants;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.optimizer.rules.am.AccessMethodJobGenParams;
+import edu.uci.ics.asterix.optimizer.rules.am.BTreeJobGenParams;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
@@ -25,7 +28,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.OperatorAnnotations;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IMergeAggregationExpressionFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
@@ -39,16 +41,15 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.ExternalGroupByPOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical.PreclusteredGroupByPOperator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.rewriter.util.JoinUtils;
 
 public class SetAsterixPhysicalOperatorsRule implements IAlgebraicRewriteRule {
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         return false;
     }
 
@@ -140,41 +141,53 @@
                 case UNNEST_MAP: {
                     UnnestMapOperator unnestMap = (UnnestMapOperator) op;
                     ILogicalExpression unnestExpr = unnestMap.getExpressionRef().getValue();
-                    boolean notSet = true;
                     if (unnestExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
                         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) unnestExpr;
                         FunctionIdentifier fid = f.getFunctionIdentifier();
-                        if (fid.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
-                            notSet = false;
-                            AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-                            ConstantExpression ce0 = (ConstantExpression) f.getArguments().get(0).getValue();
-                            String indexId = ((AString) ((AsterixConstantValue) ce0.getValue()).getObject())
-                                    .getStringValue();
-                            ConstantExpression ce2 = (ConstantExpression) f.getArguments().get(2).getValue();
-                            String datasetName = ((AString) ((AsterixConstantValue) ce2.getValue()).getObject())
-                                    .getStringValue();
-                            String dvName = mp.getMetadataDeclarations().getDataverseName();
-                            AqlSourceId dataSourceId = new AqlSourceId(dvName, datasetName);
-                            IDataSourceIndex<String, AqlSourceId> dsi = mp.findDataSourceIndex(indexId, dataSourceId);
-                            if (dsi == null) {
-                                throw new AlgebricksException("Could not find index " + indexId + " for dataset "
-                                        + dataSourceId);
+                        if (!fid.equals(AsterixBuiltinFunctions.INDEX_SEARCH)) {
+                            throw new IllegalStateException();
+                        }
+                        AccessMethodJobGenParams jobGenParams = new AccessMethodJobGenParams();
+                        jobGenParams.readFromFuncArgs(f.getArguments());
+                        AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
+                        AqlSourceId dataSourceId = new AqlSourceId(jobGenParams.getDataverseName(),
+                                jobGenParams.getDatasetName());
+                        IDataSourceIndex<String, AqlSourceId> dsi = mp.findDataSourceIndex(jobGenParams.getIndexName(),
+                                dataSourceId);
+                        if (dsi == null) {
+                            throw new AlgebricksException("Could not find index " + jobGenParams.getIndexName()
+                                    + " for dataset " + dataSourceId);
+                        }
+                        IndexType indexType = jobGenParams.getIndexType();
+                        boolean requiresBroadcast = jobGenParams.getRequiresBroadcast();
+                        switch (indexType) {
+                            case BTREE: {
+                                BTreeJobGenParams btreeJobGenParams = new BTreeJobGenParams();
+                                btreeJobGenParams.readFromFuncArgs(f.getArguments());
+                                op.setPhysicalOperator(new BTreeSearchPOperator(dsi, requiresBroadcast,
+                                        btreeJobGenParams.isPrimaryIndex(), btreeJobGenParams.isEqCondition(),
+                                        btreeJobGenParams.getLowKeyVarList(), btreeJobGenParams.getHighKeyVarList()));
+                                break;
                             }
-                            ConstantExpression ce1 = (ConstantExpression) f.getArguments().get(1).getValue();
-                            String indexType = ((AString) ((AsterixConstantValue) ce1.getValue()).getObject())
-                                    .getStringValue();
-                            if (indexType == FunctionArgumentsConstants.BTREE_INDEX) {
-                                op.setPhysicalOperator(new BTreeSearchPOperator(dsi));
-                            } else if (indexType == FunctionArgumentsConstants.RTREE_INDEX) {
-                                op.setPhysicalOperator(new RTreeSearchPOperator(dsi));
-                            } else {
+                            case RTREE: {
+                                op.setPhysicalOperator(new RTreeSearchPOperator(dsi, requiresBroadcast));
+                                break;
+                            }
+                            case WORD_INVIX:
+                            case NGRAM_INVIX: {
+                                op.setPhysicalOperator(new InvertedIndexPOperator(dsi, requiresBroadcast, false));
+                                break;
+                            }
+                            case FUZZY_WORD_INVIX:
+                            case FUZZY_NGRAM_INVIX: {
+                                op.setPhysicalOperator(new InvertedIndexPOperator(dsi, requiresBroadcast, true));
+                                break;
+                            }
+                            default: {
                                 throw new NotImplementedException(indexType + " indexes are not implemented.");
                             }
                         }
                     }
-                    if (notSet) {
-                        throw new IllegalStateException();
-                    }
                     break;
                 }
             }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetClosedRecordConstructorsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetClosedRecordConstructorsRule.java
index 33377e1..3dad464 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetClosedRecordConstructorsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetClosedRecordConstructorsRule.java
@@ -5,11 +5,13 @@
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -22,7 +24,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.AbstractConstVarFunVisitor;
 import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 /**
@@ -90,43 +91,56 @@
             boolean allClosed = true;
             boolean changed = false;
             if (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR)) {
-                int n = expr.getArguments().size();
-                if (n % 2 > 0) {
-                    throw new AlgebricksException("Record constructor expected to have an even number of arguments: "
-                            + expr);
-                }
-                for (int i = 0; i < n / 2; i++) {
-                    ILogicalExpression a0 = expr.getArguments().get(2 * i).getValue();
-                    if (a0.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
-                        allClosed = false;
+                ARecordType reqType = (ARecordType) TypeComputerUtilities.getRequiredType(expr);
+                if (reqType == null || !reqType.isOpen()) {
+                    int n = expr.getArguments().size();
+                    if (n % 2 > 0) {
+                        throw new AlgebricksException(
+                                "Record constructor expected to have an even number of arguments: " + expr);
                     }
-                    Mutable<ILogicalExpression> aRef1 = expr.getArguments().get(2 * i + 1);
-                    ILogicalExpression a1 = aRef1.getValue();
-                    ClosedDataInfo cdi = a1.accept(this, arg);
-                    if (!cdi.dataIsClosed) {
-                        allClosed = false;
+                    for (int i = 0; i < n / 2; i++) {
+                        ILogicalExpression a0 = expr.getArguments().get(2 * i).getValue();
+                        if (a0.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+                            allClosed = false;
+                        }
+                        Mutable<ILogicalExpression> aRef1 = expr.getArguments().get(2 * i + 1);
+                        ILogicalExpression a1 = aRef1.getValue();
+                        ClosedDataInfo cdi = a1.accept(this, arg);
+                        if (!cdi.dataIsClosed) {
+                            allClosed = false;
+                        }
+                        if (cdi.expressionChanged) {
+                            aRef1.setValue(cdi.expression);
+                            changed = true;
+                        }
                     }
-                    if (cdi.expressionChanged) {
-                        aRef1.setValue(cdi.expression);
+                    if (allClosed) {
+                        expr.setFunctionInfo(FunctionUtils
+                                .getFunctionInfo(AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR));
+                        GlobalConfig.ASTERIX_LOGGER.finest("Switching to CLOSED record constructor in " + expr + ".\n");
                         changed = true;
                     }
                 }
-                if (allClosed) {
-                    expr.setFunctionInfo(FunctionUtils
-                            .getFunctionInfo(AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR));
-                    GlobalConfig.ASTERIX_LOGGER.finest("Switching to CLOSED record constructor in " + expr + ".\n");
-                    changed = true;
-                }
             } else {
-                for (Mutable<ILogicalExpression> e : expr.getArguments()) {
-                    ILogicalExpression ale = e.getValue();
-                    ClosedDataInfo cdi = ale.accept(this, arg);
-                    if (!cdi.dataIsClosed) {
-                        allClosed = false;
+                boolean rewrite = true;
+                if (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR)
+                        || (expr.getFunctionIdentifier().equals(AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR))) {
+                    IAType reqType = TypeComputerUtilities.getRequiredType(expr);
+                    if (reqType == null) {
+                        rewrite = false;
                     }
-                    if (cdi.expressionChanged) {
-                        e.setValue(cdi.expression);
-                        changed = true;
+                }
+                if (rewrite) {
+                    for (Mutable<ILogicalExpression> e : expr.getArguments()) {
+                        ILogicalExpression ale = e.getValue();
+                        ClosedDataInfo cdi = ale.accept(this, arg);
+                        if (!cdi.dataIsClosed) {
+                            allClosed = false;
+                        }
+                        if (cdi.expressionChanged) {
+                            e.setValue(cdi.expression);
+                            changed = true;
+                        }
                     }
                 }
             }
@@ -136,7 +150,12 @@
         @Override
         public ClosedDataInfo visitVariableReferenceExpression(VariableReferenceExpression expr, Void arg)
                 throws AlgebricksException {
-            boolean dataIsClosed = isClosedRec((IAType) env.getVarType(expr.getVariableReference()));
+            Object varType = env.getVarType(expr.getVariableReference());
+            if (varType == null) {
+                throw new AlgebricksException("Could not infer type for variable '" + expr.getVariableReference()
+                        + "'.");
+            }
+            boolean dataIsClosed = isClosedRec((IAType) varType);
             return new ClosedDataInfo(false, dataIsClosed, expr);
         }
 
@@ -167,6 +186,7 @@
                 case DATE:
                 case TIME:
                 case DURATION:
+                case INTERVAL:
                 case POINT:
                 case POINT3D:
                 case POLYGON:
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java
new file mode 100644
index 0000000..e88e5b0
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java
@@ -0,0 +1,309 @@
+package edu.uci.ics.asterix.optimizer.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AFloat;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Looks for a select operator, containing a condition:
+ * similarity-function GE/GT/LE/LE constant/variable
+ * Rewrites the select condition (and possibly the assign expr) with the equivalent similarity-check function.
+ */
+public class SimilarityCheckRule implements IAlgebraicRewriteRule {
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
+        // Look for select.
+        if (op.getOperatorTag() != LogicalOperatorTag.SELECT) {
+            return false;
+        }
+        SelectOperator select = (SelectOperator) op;
+        Mutable<ILogicalExpression> condExpr = select.getCondition();
+
+        // Gather assigns below this select.
+        List<AssignOperator> assigns = new ArrayList<AssignOperator>();
+        AbstractLogicalOperator childOp = (AbstractLogicalOperator) select.getInputs().get(0).getValue();
+        // Skip selects.
+        while (childOp.getOperatorTag() == LogicalOperatorTag.SELECT) {
+            childOp = (AbstractLogicalOperator) childOp.getInputs().get(0).getValue();
+        }
+        while (childOp.getOperatorTag() == LogicalOperatorTag.ASSIGN) {
+            assigns.add((AssignOperator) childOp);
+            childOp = (AbstractLogicalOperator) childOp.getInputs().get(0).getValue();
+        }
+        return replaceSelectConditionExprs(condExpr, assigns, context);
+    }
+
+    private boolean replaceSelectConditionExprs(Mutable<ILogicalExpression> expRef, List<AssignOperator> assigns,
+            IOptimizationContext context) throws AlgebricksException {
+        ILogicalExpression expr = expRef.getValue();
+        if (expr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return false;
+        }
+        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) expr;
+        FunctionIdentifier funcIdent = funcExpr.getFunctionIdentifier();
+        // Recursively traverse conjuncts.
+        // TODO: Ignore disjuncts for now, because some replacements may be invalid.
+        // For example, if the result of the similarity function is used somewhere upstream,
+        // then we may still need the true similarity value even if the GE/GT/LE/LE comparison returns false.
+        if (funcIdent == AlgebricksBuiltinFunctions.AND) {
+            boolean found = true;
+            for (int i = 0; i < funcExpr.getArguments().size(); ++i) {
+                found = found && replaceSelectConditionExprs(funcExpr.getArguments().get(i), assigns, context);
+            }
+            return found;
+        }
+
+        // Look for GE/GT/LE/LT.
+        if (funcIdent != AlgebricksBuiltinFunctions.GE && funcIdent != AlgebricksBuiltinFunctions.GT
+                && funcIdent != AlgebricksBuiltinFunctions.LE && funcIdent != AlgebricksBuiltinFunctions.LT) {
+            return false;
+        }
+
+        // One arg should be a function call or a variable, the other a constant.
+        AsterixConstantValue constVal = null;
+        ILogicalExpression nonConstExpr = null;
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        // Normalized GE/GT/LE/LT as if constant was on the right hand side.
+        FunctionIdentifier normFuncIdent = null;
+        // One of the args must be a constant.
+        if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
+            ConstantExpression constExpr = (ConstantExpression) arg1;
+            constVal = (AsterixConstantValue) constExpr.getValue();
+            nonConstExpr = arg2;
+            // Get func ident as if swapping lhs and rhs.            
+            normFuncIdent = getLhsAndRhsSwappedFuncIdent(funcIdent);
+        } else if (arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
+            ConstantExpression constExpr = (ConstantExpression) arg2;
+            constVal = (AsterixConstantValue) constExpr.getValue();
+            nonConstExpr = arg1;
+            // Constant is already on rhs, so nothing to be done for normalizedFuncIdent.
+            normFuncIdent = funcIdent;
+        } else {
+            return false;
+        }
+
+        // The other arg is a function call. We can directly replace the select condition with an equivalent similarity check expression.
+        if (nonConstExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+            return replaceWithFunctionCallArg(expRef, normFuncIdent, constVal,
+                    (AbstractFunctionCallExpression) nonConstExpr);
+        }
+        // The other arg ist a variable. We may have to introduce an assign operator that assigns the result of a similarity-check function to a variable.
+        if (nonConstExpr.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+            return replaceWithVariableArg(expRef, normFuncIdent, constVal, (VariableReferenceExpression) nonConstExpr,
+                    assigns, context);
+        }
+        return false;
+    }
+
+    private boolean replaceWithVariableArg(Mutable<ILogicalExpression> expRef, FunctionIdentifier normFuncIdent,
+            AsterixConstantValue constVal, VariableReferenceExpression varRefExpr, List<AssignOperator> assigns,
+            IOptimizationContext context) throws AlgebricksException {
+
+        // Find variable in assigns to determine its originating function.    	
+        LogicalVariable var = varRefExpr.getVariableReference();
+        Mutable<ILogicalExpression> simFuncExprRef = null;
+        ScalarFunctionCallExpression simCheckFuncExpr = null;
+        AssignOperator matchingAssign = null;
+        for (int i = 0; i < assigns.size(); i++) {
+            AssignOperator assign = assigns.get(i);
+            for (int j = 0; j < assign.getVariables().size(); j++) {
+                // Check if variables match.
+                if (var != assign.getVariables().get(j)) {
+                    continue;
+                }
+                // Check if corresponding expr is a function call.
+                if (assign.getExpressions().get(j).getValue().getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                    continue;
+                }
+                simFuncExprRef = assign.getExpressions().get(j);
+                // Analyze function expression and get equivalent similarity check function.
+                simCheckFuncExpr = getSimilarityCheckExpr(normFuncIdent, constVal,
+                        (AbstractFunctionCallExpression) simFuncExprRef.getValue());
+                matchingAssign = assign;
+                break;
+            }
+            if (simCheckFuncExpr != null) {
+                break;
+            }
+        }
+
+        // Only non-null if we found that varRefExpr refers to an optimizable similarity function call. 
+        if (simCheckFuncExpr != null) {
+            // Create a new assign under matchingAssign which assigns the result of our similarity-check function to a variable.
+            LogicalVariable newVar = context.newVar();
+            AssignOperator newAssign = new AssignOperator(newVar, new MutableObject<ILogicalExpression>(
+                    simCheckFuncExpr));
+            // Hook up inputs. 
+            newAssign.getInputs()
+                    .add(new MutableObject<ILogicalOperator>(matchingAssign.getInputs().get(0).getValue()));
+            matchingAssign.getInputs().get(0).setValue(newAssign);
+
+            // Replace select condition with a get-item on newVar.
+            List<Mutable<ILogicalExpression>> selectGetItemArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            // First arg is a variable reference expr on newVar.
+            selectGetItemArgs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(newVar)));
+            // Second arg is the item index to be accessed, here 0.
+            selectGetItemArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(
+                    new AsterixConstantValue(new AInt32(0)))));
+            ILogicalExpression selectGetItemExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM), selectGetItemArgs);
+            // Replace the old similarity function call with the new getItemExpr.
+            expRef.setValue(selectGetItemExpr);
+
+            // Replace expr corresponding to original variable in the original assign with a get-item on newVar.
+            List<Mutable<ILogicalExpression>> assignGetItemArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            // First arg is a variable reference expr on newVar.
+            assignGetItemArgs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(newVar)));
+            // Second arg is the item index to be accessed, here 1.
+            assignGetItemArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(
+                    new AsterixConstantValue(new AInt32(1)))));
+            ILogicalExpression assignGetItemExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM), assignGetItemArgs);
+            // Replace the original assign expr with the get-item expr.
+            simFuncExprRef.setValue(assignGetItemExpr);
+
+            context.computeAndSetTypeEnvironmentForOperator(newAssign);
+            context.computeAndSetTypeEnvironmentForOperator(matchingAssign);
+
+            return true;
+        }
+
+        return false;
+    }
+
+    private boolean replaceWithFunctionCallArg(Mutable<ILogicalExpression> expRef, FunctionIdentifier normFuncIdent,
+            AsterixConstantValue constVal, AbstractFunctionCallExpression funcExpr) {
+        // Analyze func expr to see if it is an optimizable similarity function.
+        ScalarFunctionCallExpression simCheckFuncExpr = getSimilarityCheckExpr(normFuncIdent, constVal, funcExpr);
+
+        // Replace the expr in the select condition.
+        if (simCheckFuncExpr != null) {
+            // Get item 0 from var.
+            List<Mutable<ILogicalExpression>> getItemArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            // First arg is the similarity-check function call.
+            getItemArgs.add(new MutableObject<ILogicalExpression>(simCheckFuncExpr));
+            // Second arg is the item index to be accessed.
+            getItemArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                    new AInt32(0)))));
+            ILogicalExpression getItemExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM), getItemArgs);
+            // Replace the old similarity function call with the new getItemExpr.
+            expRef.setValue(getItemExpr);
+            return true;
+        }
+
+        return false;
+    }
+
+    private ScalarFunctionCallExpression getSimilarityCheckExpr(FunctionIdentifier normFuncIdent,
+            AsterixConstantValue constVal, AbstractFunctionCallExpression funcExpr) {
+        // Remember args from original similarity function to add them to the similarity-check function later.
+        ArrayList<Mutable<ILogicalExpression>> similarityArgs = null;
+        ScalarFunctionCallExpression simCheckFuncExpr = null; 
+        // Look for jaccard function call, and GE or GT.
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.SIMILARITY_JACCARD) {
+            IAObject jaccThresh;
+            if (normFuncIdent == AlgebricksBuiltinFunctions.GE) {                
+                if (constVal.getObject() instanceof AFloat) {
+                    jaccThresh = constVal.getObject();                    
+                } else {
+                    jaccThresh = new AFloat((float)((ADouble) constVal.getObject()).getDoubleValue());
+                }
+            } else if (normFuncIdent == AlgebricksBuiltinFunctions.GT) {
+                float threshVal = 0.0f;            
+                if (constVal.getObject() instanceof AFloat) {
+                    threshVal = ((AFloat) constVal.getObject()).getFloatValue();
+                } else {
+                    threshVal = (float)((ADouble) constVal.getObject()).getDoubleValue();                    
+                }
+                float f = threshVal + Float.MIN_VALUE;
+                if (f > 1.0f) f = 1.0f;
+                jaccThresh = new AFloat(f);
+            } else {
+                return null;
+            }
+            similarityArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            similarityArgs.addAll(funcExpr.getArguments());
+            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(jaccThresh))));
+            simCheckFuncExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK), similarityArgs);
+        }
+
+        // Look for edit-distance function call, and LE or LT.
+        if(funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE) {
+            AInt32 aInt = (AInt32) constVal.getObject();
+            AInt32 edThresh;
+            if (normFuncIdent == AlgebricksBuiltinFunctions.LE) {
+                edThresh = aInt;
+            } else if (normFuncIdent == AlgebricksBuiltinFunctions.LT) {
+                int ed = aInt.getIntegerValue() - 1;
+                if (ed < 0) ed = 0;
+                edThresh = new AInt32(ed);
+            } else {
+                return null;
+            }
+            similarityArgs = new ArrayList<Mutable<ILogicalExpression>>();
+            similarityArgs.addAll(funcExpr.getArguments());
+            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(edThresh))));
+            simCheckFuncExpr = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK), similarityArgs);
+        }
+        // Preserve all annotations.
+        if (simCheckFuncExpr != null) {
+            simCheckFuncExpr.getAnnotations().putAll(funcExpr.getAnnotations());
+        }
+        return simCheckFuncExpr;
+    }
+
+    private FunctionIdentifier getLhsAndRhsSwappedFuncIdent(FunctionIdentifier oldFuncIdent) {
+        if (oldFuncIdent == AlgebricksBuiltinFunctions.GE) {
+            return AlgebricksBuiltinFunctions.LE;
+        }
+        if (oldFuncIdent == AlgebricksBuiltinFunctions.GT) {
+            return AlgebricksBuiltinFunctions.LT;
+        }
+        if (oldFuncIdent == AlgebricksBuiltinFunctions.LE) {
+            return AlgebricksBuiltinFunctions.GE;
+        }
+        if (oldFuncIdent == AlgebricksBuiltinFunctions.LT) {
+            return AlgebricksBuiltinFunctions.GT;
+        }
+        throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+        return false;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
index ec8fb88..34c5739 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
@@ -6,19 +6,20 @@
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledFeedDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
 import edu.uci.ics.asterix.metadata.declared.ExternalFeedDataSource;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
@@ -33,7 +34,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
 public class UnnestToDataScanRule implements IAlgebraicRewriteRule {
@@ -74,29 +74,31 @@
                 if (acv2.getObject().getType().getTypeTag() != ATypeTag.STRING) {
                     return false;
                 }
-                String datasetName = ((AString) acv2.getObject()).getStringValue();
+                String datasetArg = ((AString) acv2.getObject()).getStringValue();
 
-                AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-                AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-                AqlCompiledDatasetDecl acdd = metadata.findDataset(datasetName);
-                if (acdd == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+                Pair<String, String> datasetReference = parseDatasetReference(metadataProvider, datasetArg);
+                String dataverseName = datasetReference.first;
+                String datasetName = datasetReference.second;
+                Dataset dataset = metadataProvider.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
                 }
 
-                AqlSourceId asid = new AqlSourceId(metadata.getDataverseName(), datasetName);
+                AqlSourceId asid = new AqlSourceId(dataverseName, datasetName);
 
                 ArrayList<LogicalVariable> v = new ArrayList<LogicalVariable>();
 
-                if (acdd.getDatasetType() == DatasetType.INTERNAL || acdd.getDatasetType() == DatasetType.FEED) {
-
-                    int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(acdd).size();
+                if (dataset.getDatasetType() == DatasetType.INTERNAL || dataset.getDatasetType() == DatasetType.FEED) {
+                    int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
                     for (int i = 0; i < numPrimaryKeys; i++) {
                         v.add(context.newVar());
                     }
                 }
                 v.add(unnest.getVariable());
 
-                DataSourceScanOperator scan = new DataSourceScanOperator(v, mp.findDataSource(asid));
+                DataSourceScanOperator scan = new DataSourceScanOperator(v, metadataProvider.findDataSource(asid));
                 List<Mutable<ILogicalOperator>> scanInpList = scan.getInputs();
                 scanInpList.addAll(unnest.getInputs());
                 opRef.setValue(scan);
@@ -105,7 +107,7 @@
 
                 return true;
             }
-            
+
             if (fid.equals(AsterixBuiltinFunctions.FEED_INGEST)) {
                 if (unnest.getPositionalVariable() != null) {
                     throw new AlgebricksException("No positional variables are allowed over datasets.");
@@ -123,34 +125,27 @@
                 if (acv2.getObject().getType().getTypeTag() != ATypeTag.STRING) {
                     return false;
                 }
-                String datasetName = ((AString) acv2.getObject()).getStringValue();
+                String datasetArg = ((AString) acv2.getObject()).getStringValue();
 
-                AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-                AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-                AqlCompiledDatasetDecl acdd = metadata.findDataset(datasetName);
-
-                if (acdd == null) {
+                AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+                Pair<String, String> datasetReference = parseDatasetReference(metadataProvider, datasetArg);
+                String dataverseName = datasetReference.first;
+                String datasetName = datasetReference.second;
+                Dataset dataset = metadataProvider.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
                     throw new AlgebricksException("Could not find dataset " + datasetName);
                 }
 
-                if (acdd.getDatasetType() != DatasetType.FEED) {
-                    throw new IllegalArgumentException("invalid dataset type:" + acdd.getDatasetType());
+                if (dataset.getDatasetType() != DatasetType.FEED) {
+                    throw new IllegalArgumentException("invalid dataset type:" + dataset.getDatasetType());
                 }
 
-                AqlSourceId asid = new AqlSourceId(metadata.getDataverseName(), datasetName);
-
+                AqlSourceId asid = new AqlSourceId(dataverseName, datasetName);
                 ArrayList<LogicalVariable> v = new ArrayList<LogicalVariable>();
-
-                /*
-                int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(acdd).size();
-                for (int i = 0; i < numPrimaryKeys; i++) {
-                    v.add(context.newVar());
-                }*/
-
                 v.add(unnest.getVariable());
 
-                DataSourceScanOperator scan = new DataSourceScanOperator(v, createDummyFeedDataSource(asid, acdd,
-                        metadata));
+                DataSourceScanOperator scan = new DataSourceScanOperator(v, createDummyFeedDataSource(asid, dataset,
+                        metadataProvider));
 
                 List<Mutable<ILogicalOperator>> scanInpList = scan.getInputs();
                 scanInpList.addAll(unnest.getInputs());
@@ -161,36 +156,10 @@
                 return true;
             }
         }
-        
 
         return false;
     }
 
-    private AqlDataSource createDummyFeedDataSource(AqlSourceId aqlId, AqlCompiledDatasetDecl acdd,
-            AqlCompiledMetadataDeclarations metadata) throws AlgebricksException {
-
-        AqlCompiledFeedDatasetDetails feedDetails = (AqlCompiledFeedDatasetDetails) acdd.getAqlCompiledDatasetDetails();
-
-        if (!aqlId.getDataverseName().equals(metadata.getDataverseName())) {
-            return null;
-        }
-
-        String tName = acdd.getItemTypeName();
-        IAType itemType;
-        try {
-            itemType = metadata.findType(tName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
-        AqlCompiledDatasetDecl dummySourceDecl = new AqlCompiledDatasetDecl(acdd.getName(), tName,
-                DatasetType.EXTERNAL, feedDetails);
-
-        ExternalFeedDataSource extDataSource = new ExternalFeedDataSource(aqlId, dummySourceDecl, itemType,
-                AqlDataSource.AqlDataSourceType.EXTERNAL_FEED);
-        return extDataSource;
-    }
-    
     public void addPrimaryKey(List<LogicalVariable> scanVariables, IOptimizationContext context) {
         int n = scanVariables.size();
         List<LogicalVariable> head = new ArrayList<LogicalVariable>(scanVariables.subList(0, n - 1));
@@ -199,4 +168,37 @@
         FunctionalDependency pk = new FunctionalDependency(head, tail);
         context.addPrimaryKey(pk);
     }
+
+    private AqlDataSource createDummyFeedDataSource(AqlSourceId aqlId, Dataset dataset,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException {
+        if (!aqlId.getDataverseName().equals(
+                metadataProvider.getDefaultDataverse() == null ? null : metadataProvider.getDefaultDataverse()
+                        .getDataverseName())) {
+            return null;
+        }
+        String tName = dataset.getItemTypeName();
+        IAType itemType = metadataProvider.findType(dataset.getDataverseName(), tName);
+        ExternalFeedDataSource extDataSource = new ExternalFeedDataSource(aqlId, dataset, itemType,
+                AqlDataSource.AqlDataSourceType.EXTERNAL_FEED);
+        return extDataSource;
+    }
+
+    private Pair<String, String> parseDatasetReference(AqlMetadataProvider metadataProvider, String datasetArg)
+            throws AlgebricksException {
+        String[] datasetNameComponents = datasetArg.split("\\.");
+        String dataverseName;
+        String datasetName;
+        if (datasetNameComponents.length == 1) {
+            Dataverse defaultDataverse = metadataProvider.getDefaultDataverse();
+            if (defaultDataverse == null) {
+                throw new AlgebricksException("Unresolved dataset " + datasetArg + " Dataverse not specified.");
+            }
+            dataverseName = defaultDataverse.getDataverseName();
+            datasetName = datasetNameComponents[0];
+        } else {
+            dataverseName = datasetNameComponents[0];
+            datasetName = datasetNameComponents[1];
+        }
+        return new Pair<String, String>(dataverseName, datasetName);
+    }
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java
new file mode 100644
index 0000000..8bfef17
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java
@@ -0,0 +1,333 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractLogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+
+/**
+ * Class that embodies the commonalities between rewrite rules for access methods.
+ */
+public abstract class AbstractIntroduceAccessMethodRule implements IAlgebraicRewriteRule {
+
+    private AqlMetadataProvider metadataProvider;
+
+    public abstract Map<FunctionIdentifier, List<IAccessMethod>> getAccessMethods();
+
+    protected static void registerAccessMethod(IAccessMethod accessMethod,
+            Map<FunctionIdentifier, List<IAccessMethod>> accessMethods) {
+        List<FunctionIdentifier> funcs = accessMethod.getOptimizableFunctions();
+        for (FunctionIdentifier funcIdent : funcs) {
+            List<IAccessMethod> l = accessMethods.get(funcIdent);
+            if (l == null) {
+                l = new ArrayList<IAccessMethod>();
+                accessMethods.put(funcIdent, l);
+            }
+            l.add(accessMethod);
+        }
+    }
+
+    @Override
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
+        return false;
+    }
+
+    protected void setMetadataDeclarations(IOptimizationContext context) {
+        metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+    }
+
+    protected void fillSubTreeIndexExprs(OptimizableOperatorSubTree subTree,
+            Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs) throws AlgebricksException {
+        Iterator<Map.Entry<IAccessMethod, AccessMethodAnalysisContext>> amIt = analyzedAMs.entrySet().iterator();
+        // Check applicability of indexes by access method type.
+        while (amIt.hasNext()) {
+            Map.Entry<IAccessMethod, AccessMethodAnalysisContext> entry = amIt.next();
+            AccessMethodAnalysisContext amCtx = entry.getValue();
+            // For the current access method type, map variables to applicable indexes.
+            fillAllIndexExprs(subTree, amCtx);
+        }
+    }
+
+    protected void pruneIndexCandidates(Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs) {
+        Iterator<Map.Entry<IAccessMethod, AccessMethodAnalysisContext>> amIt = analyzedAMs.entrySet().iterator();
+        // Check applicability of indexes by access method type.
+        while (amIt.hasNext()) {
+            Map.Entry<IAccessMethod, AccessMethodAnalysisContext> entry = amIt.next();
+            AccessMethodAnalysisContext amCtx = entry.getValue();
+            pruneIndexCandidates(entry.getKey(), amCtx);
+            // Remove access methods for which there are definitely no applicable indexes.
+            if (amCtx.indexExprs.isEmpty()) {
+                amIt.remove();
+            }
+        }
+    }
+
+    /**
+     * Simply picks the first index that it finds.
+     * TODO: Improve this decision process by making it more systematic.
+     */
+    protected Pair<IAccessMethod, Index> chooseIndex(Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs) {
+        Iterator<Map.Entry<IAccessMethod, AccessMethodAnalysisContext>> amIt = analyzedAMs.entrySet().iterator();
+        while (amIt.hasNext()) {
+            Map.Entry<IAccessMethod, AccessMethodAnalysisContext> amEntry = amIt.next();
+            AccessMethodAnalysisContext analysisCtx = amEntry.getValue();
+            Iterator<Map.Entry<Index, List<Integer>>> indexIt = analysisCtx.indexExprs.entrySet().iterator();
+            if (indexIt.hasNext()) {
+                Map.Entry<Index, List<Integer>> indexEntry = indexIt.next();
+                return new Pair<IAccessMethod, Index>(amEntry.getKey(), indexEntry.getKey());
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Removes irrelevant access methods candidates, based on whether the
+     * expressions in the query match those in the index. For example, some
+     * index may require all its expressions to be matched, and some indexes may
+     * only require a match on a prefix of fields to be applicable. This methods
+     * removes all index candidates indexExprs that are definitely not
+     * applicable according to the expressions involved.
+     */
+    public void pruneIndexCandidates(IAccessMethod accessMethod, AccessMethodAnalysisContext analysisCtx) {
+        Iterator<Map.Entry<Index, List<Integer>>> it = analysisCtx.indexExprs.entrySet().iterator();
+        while (it.hasNext()) {
+            Map.Entry<Index, List<Integer>> entry = it.next();
+            Index index = entry.getKey();            
+            boolean allUsed = true;
+            int lastFieldMatched = -1;
+            for (int i = 0; i < index.getKeyFieldNames().size(); i++) {
+                String keyField = index.getKeyFieldNames().get(i);
+                boolean foundKeyField = false;
+                Iterator<Integer> exprsIter = entry.getValue().iterator();
+                while (exprsIter.hasNext()) {
+                    Integer ix = exprsIter.next();
+                    IOptimizableFuncExpr optFuncExpr = analysisCtx.matchedFuncExprs.get(ix);
+                    // If expr is not optimizable by concrete index then remove expr and continue.
+                    if (!accessMethod.exprIsOptimizable(index, optFuncExpr)) {
+                        exprsIter.remove();
+                        continue;
+                    }
+                    // Check if any field name in the optFuncExpr matches.
+                    if (optFuncExpr.findFieldName(keyField) != -1) {
+                        foundKeyField = true;
+                        if (lastFieldMatched == i - 1) {
+                            lastFieldMatched = i;
+                        }
+                        break;
+                    }
+                }
+                if (!foundKeyField) {
+                    allUsed = false;
+                    break;
+                }
+            }
+            // If the access method requires all exprs to be matched but they are not, remove this candidate.
+            if (!allUsed && accessMethod.matchAllIndexExprs()) {
+                it.remove();
+            }
+            // A prefix of the index exprs may have been matched.
+            if (lastFieldMatched < 0 && accessMethod.matchPrefixIndexExprs()) {
+                it.remove();
+            }
+        }
+    }
+
+    /**
+     * Analyzes the given selection condition, filling analyzedAMs with applicable access method types.
+     * At this point we are not yet consulting the metadata whether an actual index exists or not.
+     */
+    protected boolean analyzeCondition(ILogicalExpression cond, List<AssignOperator> assigns,
+            Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs) {
+        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) cond;
+        FunctionIdentifier funcIdent = funcExpr.getFunctionIdentifier();
+        // Don't consider optimizing a disjunctive condition with an index (too complicated for now).
+        if (funcIdent == AlgebricksBuiltinFunctions.OR) {
+            return false;
+        }
+        boolean found = analyzeFunctionExpr(funcExpr, assigns, analyzedAMs);
+        for (Mutable<ILogicalExpression> arg : funcExpr.getArguments()) {
+            ILogicalExpression argExpr = arg.getValue();
+            if (argExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                continue;
+            }
+            AbstractFunctionCallExpression argFuncExpr = (AbstractFunctionCallExpression) argExpr;
+            boolean matchFound = analyzeFunctionExpr(argFuncExpr, assigns, analyzedAMs);
+            found = found || matchFound;
+        }
+        return found;
+    }
+
+    /**
+     * Finds applicable access methods for the given function expression based
+     * on the function identifier, and an analysis of the function's arguments.
+     * Updates the analyzedAMs accordingly.
+     */
+    protected boolean analyzeFunctionExpr(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs) {
+        FunctionIdentifier funcIdent = funcExpr.getFunctionIdentifier();
+        if (funcIdent == AlgebricksBuiltinFunctions.AND) {
+            return false;
+        }
+        // Retrieves the list of access methods that are relevant based on the funcIdent.
+        List<IAccessMethod> relevantAMs = getAccessMethods().get(funcIdent);
+        if (relevantAMs == null) {
+            return false;
+        }
+        boolean atLeastOneMatchFound = false;
+        // Place holder for a new analysis context in case we need one.
+        AccessMethodAnalysisContext newAnalysisCtx = new AccessMethodAnalysisContext();
+        for (IAccessMethod accessMethod : relevantAMs) {
+            AccessMethodAnalysisContext analysisCtx = analyzedAMs.get(accessMethod);
+            // Use the current place holder.
+            if (analysisCtx == null) {
+                analysisCtx = newAnalysisCtx;
+            }
+            // Analyzes the funcExpr's arguments to see if the accessMethod is truly applicable.
+            boolean matchFound = accessMethod.analyzeFuncExprArgs(funcExpr, assigns, analysisCtx);
+            if (matchFound) {
+                // If we've used the current new context placeholder, replace it with a new one.
+                if (analysisCtx == newAnalysisCtx) {
+                    analyzedAMs.put(accessMethod, analysisCtx);
+                    newAnalysisCtx = new AccessMethodAnalysisContext();
+                }
+                atLeastOneMatchFound = true;
+            }
+        }
+        return atLeastOneMatchFound;
+    }
+
+    /**
+     * Finds secondary indexes whose keys include fieldName, and adds a mapping in analysisCtx.indexEsprs
+     * from that index to the a corresponding optimizable function expression.
+     * 
+     * @return true if a candidate index was added to foundIndexExprs, false
+     *         otherwise
+     * @throws AlgebricksException
+     */
+    protected boolean fillIndexExprs(String fieldName, int matchedFuncExprIndex, Dataset dataset,
+            AccessMethodAnalysisContext analysisCtx) throws AlgebricksException {
+        List<Index> datasetIndexes = metadataProvider.getDatasetIndexes(dataset.getDataverseName(),
+                dataset.getDatasetName());
+        List<Index> indexCandidates = new ArrayList<Index>();
+        // Add an index to the candidates if one of the indexed fields is fieldName.
+        for (Index index : datasetIndexes) {
+            if (index.getKeyFieldNames().contains(fieldName)) {
+                indexCandidates.add(index);
+            }
+        }
+        // No index candidates for fieldName.
+        if (indexCandidates.isEmpty()) {
+            return false;
+        }
+        // Go through the candidates and fill indexExprs.
+        for (Index index : indexCandidates) {
+            analysisCtx.addIndexExpr(dataset, index, matchedFuncExprIndex);
+        }
+        return true;
+    }
+
+    protected void fillAllIndexExprs(OptimizableOperatorSubTree subTree,
+            AccessMethodAnalysisContext analysisCtx) throws AlgebricksException {
+        for (int optFuncExprIndex = 0; optFuncExprIndex < analysisCtx.matchedFuncExprs.size(); optFuncExprIndex++) {
+            IOptimizableFuncExpr optFuncExpr = analysisCtx.matchedFuncExprs.get(optFuncExprIndex);
+            // Try to match variables from optFuncExpr to assigns.
+            for (int assignIndex = 0; assignIndex < subTree.assigns.size(); assignIndex++) {
+                AssignOperator assignOp = subTree.assigns.get(assignIndex);
+                List<LogicalVariable> varList = assignOp.getVariables();
+                for (int varIndex = 0; varIndex < varList.size(); varIndex++) {
+                    LogicalVariable var = varList.get(varIndex);
+                    int funcVarIndex = optFuncExpr.findLogicalVar(var);
+                    // No matching var in optFuncExpr.
+                    if (funcVarIndex == -1) {
+                        continue;
+                    }
+                    // At this point we have matched the optimizable func expr at optFuncExprIndex to an assigned variable.
+                    String fieldName = getFieldNameOfFieldAccess(assignOp, subTree.recordType, varIndex);
+                    if (fieldName == null) {
+                        continue;
+                    }
+                    // Set the fieldName in the corresponding matched function expression, and remember matching subtree.
+                    optFuncExpr.setFieldName(funcVarIndex, fieldName);
+                    optFuncExpr.setOptimizableSubTree(funcVarIndex, subTree);
+                    fillIndexExprs(fieldName, optFuncExprIndex, subTree.dataset, analysisCtx);
+                }
+            }
+            // Try to match variables from optFuncExpr to datasourcescan if not already matched in assigns.
+            List<LogicalVariable> dsVarList = subTree.dataSourceScan.getVariables();
+            for (int varIndex = 0; varIndex < dsVarList.size(); varIndex++) {
+                LogicalVariable var = dsVarList.get(varIndex);
+                int funcVarIndex = optFuncExpr.findLogicalVar(var);
+                // No matching var in optFuncExpr.
+                if (funcVarIndex == -1) {
+                    continue;
+                }
+                // The variable value is one of the partitioning fields.
+                String fieldName = DatasetUtils.getPartitioningKeys(subTree.dataset).get(varIndex);
+                // Set the fieldName in the corresponding matched function expression, and remember matching subtree.
+                optFuncExpr.setFieldName(funcVarIndex, fieldName);
+                optFuncExpr.setOptimizableSubTree(funcVarIndex, subTree);
+                fillIndexExprs(fieldName, optFuncExprIndex, subTree.dataset, analysisCtx);
+            }
+        }
+    }
+
+    /**
+     * Returns the field name corresponding to the assigned variable at varIndex.
+     * Returns null if the expr at varIndex is not a field access function.
+     */
+    protected String getFieldNameOfFieldAccess(AssignOperator assign, ARecordType recordType, int varIndex) {
+        // Get expression corresponding to var at varIndex.
+        AbstractLogicalExpression assignExpr = (AbstractLogicalExpression) assign.getExpressions().get(varIndex)
+                .getValue();
+        if (assignExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return null;
+        }
+        // Analyze the assign op to get the field name
+        // corresponding to the field being assigned at varIndex.
+        AbstractFunctionCallExpression assignFuncExpr = (AbstractFunctionCallExpression) assignExpr;
+        FunctionIdentifier assignFuncIdent = assignFuncExpr.getFunctionIdentifier();
+        if (assignFuncIdent == AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME) {
+            ILogicalExpression nameArg = assignFuncExpr.getArguments().get(1).getValue();
+            if (nameArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+                return null;
+            }
+            ConstantExpression constExpr = (ConstantExpression) nameArg;
+            return ((AString) ((AsterixConstantValue) constExpr.getValue()).getObject()).getStringValue();
+        } else if (assignFuncIdent == AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX) {
+            ILogicalExpression idxArg = assignFuncExpr.getArguments().get(1).getValue();
+            if (idxArg.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+                return null;
+            }
+            ConstantExpression constExpr = (ConstantExpression) idxArg;
+            int fieldIndex = ((AInt32) ((AsterixConstantValue) constExpr.getValue()).getObject()).getIntegerValue();
+            return recordType.getFieldNames()[fieldIndex];
+        }
+        return null;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodAnalysisContext.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodAnalysisContext.java
new file mode 100644
index 0000000..fc45063
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodAnalysisContext.java
@@ -0,0 +1,38 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+
+/**
+ * Context for analyzing the applicability of a single access method.
+ */
+public class AccessMethodAnalysisContext {
+
+    public List<IOptimizableFuncExpr> matchedFuncExprs = new ArrayList<IOptimizableFuncExpr>();
+
+    // Contains candidate indexes and a list of integers that index into matchedFuncExprs.
+    // We are mapping from candidate indexes to a list of function expressions 
+    // that match one of the index's expressions.
+    public HashMap<Index, List<Integer>> indexExprs = new HashMap<Index, List<Integer>>();
+
+    // Maps from index to the dataset it is indexing.
+    public HashMap<Index, Dataset> indexDatasetMap = new HashMap<Index, Dataset>();
+
+    public void addIndexExpr(Dataset dataset, Index index, Integer exprIndex) {
+        List<Integer> exprs = indexExprs.get(index);
+        if (exprs == null) {
+            exprs = new ArrayList<Integer>();
+            indexExprs.put(index, exprs);
+        }
+        exprs.add(exprIndex);
+        indexDatasetMap.put(index, dataset);
+    }
+
+    public List<Integer> getIndexExprs(Index index) {
+        return indexExprs.get(index);
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodJobGenParams.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodJobGenParams.java
new file mode 100644
index 0000000..84e152a
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodJobGenParams.java
@@ -0,0 +1,118 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+
+/**
+ * Helper class for reading and writing job-gen parameters for access methods to
+ * and from a list of function arguments, typically of an unnest-map.
+ */
+public class AccessMethodJobGenParams {
+    protected String indexName;
+    protected IndexType indexType;
+    protected String dataverseName;
+    protected String datasetName;
+    protected boolean retainInput;
+    protected boolean requiresBroadcast;
+    protected boolean isPrimaryIndex;
+
+    private final int NUM_PARAMS = 6;
+
+    public AccessMethodJobGenParams() {
+    }
+
+    public AccessMethodJobGenParams(String indexName, IndexType indexType, String dataverseName, String datasetName,
+            boolean retainInput, boolean requiresBroadcast) {
+        this.indexName = indexName;
+        this.indexType = indexType;
+        this.dataverseName = dataverseName;
+        this.datasetName = datasetName;
+        this.retainInput = retainInput;
+        this.requiresBroadcast = requiresBroadcast;
+        this.isPrimaryIndex = datasetName.equals(indexName);
+    }
+
+    public void writeToFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createStringConstant(indexName)));
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createInt32Constant(indexType.ordinal())));
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createStringConstant(dataverseName)));
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createStringConstant(datasetName)));
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createBooleanConstant(retainInput)));
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createBooleanConstant(requiresBroadcast)));
+    }
+
+    public void readFromFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        indexName = AccessMethodUtils.getStringConstant(funcArgs.get(0));
+        indexType = IndexType.values()[AccessMethodUtils.getInt32Constant(funcArgs.get(1))];
+        dataverseName = AccessMethodUtils.getStringConstant(funcArgs.get(2));
+        datasetName = AccessMethodUtils.getStringConstant(funcArgs.get(3));
+        retainInput = AccessMethodUtils.getBooleanConstant(funcArgs.get(4));
+        requiresBroadcast = AccessMethodUtils.getBooleanConstant(funcArgs.get(5));
+        isPrimaryIndex = datasetName.equals(indexName);
+    }
+
+    public String getIndexName() {
+        return indexName;
+    }
+
+    public IndexType getIndexType() {
+        return indexType;
+    }
+
+    public String getDataverseName() {
+        return dataverseName;
+    }
+
+    public String getDatasetName() {
+        return datasetName;
+    }
+
+    public boolean getRetainInput() {
+        return retainInput;
+    }
+
+    public boolean getRequiresBroadcast() {
+        return requiresBroadcast;
+    }
+
+    protected void writeVarList(List<LogicalVariable> varList, List<Mutable<ILogicalExpression>> funcArgs) {
+        Mutable<ILogicalExpression> numKeysRef = new MutableObject<ILogicalExpression>(new ConstantExpression(
+                new AsterixConstantValue(new AInt32(varList.size()))));
+        funcArgs.add(numKeysRef);
+        for (LogicalVariable keyVar : varList) {
+            Mutable<ILogicalExpression> keyVarRef = new MutableObject<ILogicalExpression>(
+                    new VariableReferenceExpression(keyVar));
+            funcArgs.add(keyVarRef);
+        }
+    }
+
+    protected int readVarList(List<Mutable<ILogicalExpression>> funcArgs, int index, List<LogicalVariable> varList) {
+        int numLowKeys = AccessMethodUtils.getInt32Constant(funcArgs.get(index));
+        if (numLowKeys > 0) {
+            for (int i = 0; i < numLowKeys; i++) {
+                LogicalVariable var = ((VariableReferenceExpression) funcArgs.get(index + 1 + i).getValue())
+                        .getVariableReference();
+                varList.add(var);
+            }
+        }
+        return index + numLowKeys + 1;
+    }
+
+    protected int getNumParams() {
+        return NUM_PARAMS;
+    }
+
+    public boolean isPrimaryIndex() {
+        return isPrimaryIndex;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java
new file mode 100644
index 0000000..7084cd7
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java
@@ -0,0 +1,349 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+
+/**
+ * Static helper functions for rewriting plans using indexes.
+ */
+public class AccessMethodUtils {
+    public static void appendPrimaryIndexTypes(Dataset dataset, IAType itemType, List<Object> target)
+            throws IOException {
+        ARecordType recordType = (ARecordType) itemType;
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        for (String partitioningKey : partitioningKeys) {
+            target.add(recordType.getFieldType(partitioningKey));
+        }
+        target.add(itemType);
+    }
+
+    public static ConstantExpression createStringConstant(String str) {
+        return new ConstantExpression(new AsterixConstantValue(new AString(str)));
+    }
+
+    public static ConstantExpression createInt32Constant(int i) {
+        return new ConstantExpression(new AsterixConstantValue(new AInt32(i)));
+    }
+
+    public static ConstantExpression createBooleanConstant(boolean b) {
+        if (b) {
+            return new ConstantExpression(new AsterixConstantValue(ABoolean.TRUE));
+        } else {
+            return new ConstantExpression(new AsterixConstantValue(ABoolean.FALSE));
+        }
+    }
+
+    public static String getStringConstant(Mutable<ILogicalExpression> expr) {
+        IAObject obj = ((AsterixConstantValue) ((ConstantExpression) expr.getValue()).getValue()).getObject();
+        return ((AString) obj).getStringValue();
+    }
+
+    public static int getInt32Constant(Mutable<ILogicalExpression> expr) {
+        IAObject obj = ((AsterixConstantValue) ((ConstantExpression) expr.getValue()).getValue()).getObject();
+        return ((AInt32) obj).getIntegerValue();
+    }
+
+    public static boolean getBooleanConstant(Mutable<ILogicalExpression> expr) {
+        IAObject obj = ((AsterixConstantValue) ((ConstantExpression) expr.getValue()).getValue()).getObject();
+        return ((ABoolean) obj).getBoolean();
+    }
+
+    public static boolean analyzeFuncExprArgsForOneConstAndVar(AbstractFunctionCallExpression funcExpr,
+            AccessMethodAnalysisContext analysisCtx) {
+        IAlgebricksConstantValue constFilterVal = null;
+        LogicalVariable fieldVar = null;
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        // One of the args must be a constant, and the other arg must be a variable.
+        if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT
+                && arg2.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+            ConstantExpression constExpr = (ConstantExpression) arg1;
+            constFilterVal = constExpr.getValue();
+            VariableReferenceExpression varExpr = (VariableReferenceExpression) arg2;
+            fieldVar = varExpr.getVariableReference();
+        } else if (arg1.getExpressionTag() == LogicalExpressionTag.VARIABLE
+                && arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
+            ConstantExpression constExpr = (ConstantExpression) arg2;
+            constFilterVal = constExpr.getValue();
+            VariableReferenceExpression varExpr = (VariableReferenceExpression) arg1;
+            fieldVar = varExpr.getVariableReference();
+        } else {
+            return false;
+        }
+        analysisCtx.matchedFuncExprs.add(new OptimizableFuncExpr(funcExpr, fieldVar, constFilterVal));
+        return true;
+    }
+
+    public static boolean analyzeFuncExprArgsForTwoVars(AbstractFunctionCallExpression funcExpr,
+            AccessMethodAnalysisContext analysisCtx) {
+        LogicalVariable fieldVar1 = null;
+        LogicalVariable fieldVar2 = null;
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        if (arg1.getExpressionTag() == LogicalExpressionTag.VARIABLE
+                && arg2.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+            fieldVar1 = ((VariableReferenceExpression) arg1).getVariableReference();
+            fieldVar2 = ((VariableReferenceExpression) arg2).getVariableReference();
+        } else {
+            return false;
+        }
+        analysisCtx.matchedFuncExprs.add(new OptimizableFuncExpr(funcExpr,
+                new LogicalVariable[] { fieldVar1, fieldVar2 }, null));
+        return true;
+    }
+
+    public static int getNumSecondaryKeys(Index index, ARecordType recordType) throws AlgebricksException {
+        switch (index.getIndexType()) {
+            case BTREE:
+            case WORD_INVIX:
+            case NGRAM_INVIX: 
+            case FUZZY_WORD_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                return index.getKeyFieldNames().size();
+            }
+            case RTREE: {
+                Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(index.getKeyFieldNames().get(0),
+                        recordType);
+                IAType keyType = keyPairType.first;
+                int numDimensions = NonTaggedFormatUtil.getNumDimensions(keyType.getTypeTag());
+                return numDimensions * 2;
+            }
+            default: {
+                throw new AlgebricksException("Unknown index kind: " + index.getIndexType());
+            }
+        }
+    }
+
+    /**
+     * Appends the types of the fields produced by the given secondary index to dest.
+     */
+    public static void appendSecondaryIndexTypes(Dataset dataset, ARecordType recordType, Index index,
+            boolean primaryKeysOnly, List<Object> dest) throws AlgebricksException {
+        if (!primaryKeysOnly) {
+            switch (index.getIndexType()) {
+                case BTREE:
+                case WORD_INVIX:
+                case NGRAM_INVIX: {
+                    for (String sk : index.getKeyFieldNames()) {
+                        Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(sk, recordType);
+                        dest.add(keyPairType.first);
+                    }
+                    break;
+                }
+                case RTREE: {
+                    Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(index.getKeyFieldNames()
+                            .get(0), recordType);
+                    IAType keyType = keyPairType.first;
+                    IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
+                    int numKeys = getNumSecondaryKeys(index, recordType);
+                    for (int i = 0; i < numKeys; i++) {
+                        dest.add(nestedKeyType);
+                    }
+                    break;
+                }
+            }
+        }
+        // Primary keys.
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        for (String partitioningKey : partitioningKeys) {
+            try {
+                dest.add(recordType.getFieldType(partitioningKey));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+        }
+    }
+
+    public static void appendSecondaryIndexOutputVars(Dataset dataset, ARecordType recordType, Index index,
+            boolean primaryKeysOnly, IOptimizationContext context, List<LogicalVariable> dest)
+            throws AlgebricksException {
+        int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+        int numSecondaryKeys = getNumSecondaryKeys(index, recordType);
+        int numVars = (primaryKeysOnly) ? numPrimaryKeys : numPrimaryKeys + numSecondaryKeys;
+        for (int i = 0; i < numVars; i++) {
+            dest.add(context.newVar());
+        }
+    }
+
+    public static List<LogicalVariable> getPrimaryKeyVarsFromUnnestMap(Dataset dataset, ILogicalOperator unnestMapOp) {
+        int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+        List<LogicalVariable> primaryKeyVars = new ArrayList<LogicalVariable>();
+        List<LogicalVariable> sourceVars = ((UnnestMapOperator) unnestMapOp).getVariables();
+        // Assumes the primary keys are located at the end.
+        int start = sourceVars.size() - numPrimaryKeys;
+        int stop = sourceVars.size();
+        for (int i = start; i < stop; i++) {
+            primaryKeyVars.add(sourceVars.get(i));
+        }
+        return primaryKeyVars;
+    }
+
+    /**
+     * Returns the search key expression which feeds a secondary-index search. If we are optimizing a selection query then this method returns
+     * the a ConstantExpression from the first constant value in the optimizable function expression.
+     * If we are optimizing a join, then this method returns the VariableReferenceExpression that should feed the secondary index probe.
+     */
+    public static ILogicalExpression createSearchKeyExpr(IOptimizableFuncExpr optFuncExpr,
+            OptimizableOperatorSubTree indexSubTree, OptimizableOperatorSubTree probeSubTree) {
+        if (probeSubTree == null) {
+            // We are optimizing a selection query. Search key is a constant.
+            return new ConstantExpression(optFuncExpr.getConstantVal(0));
+        } else {
+            // We are optimizing a join query. Determine which variable feeds the secondary index. 
+            if (optFuncExpr.getOperatorSubTree(0) == null || optFuncExpr.getOperatorSubTree(0) == probeSubTree) {
+                return new VariableReferenceExpression(optFuncExpr.getLogicalVar(0));
+            } else {
+                return new VariableReferenceExpression(optFuncExpr.getLogicalVar(1));
+            }
+        }
+    }
+
+    /**
+     * Returns the first expr optimizable by this index.
+     */
+    public static IOptimizableFuncExpr chooseFirstOptFuncExpr(Index chosenIndex, AccessMethodAnalysisContext analysisCtx) {
+        List<Integer> indexExprs = analysisCtx.getIndexExprs(chosenIndex);
+        int firstExprIndex = indexExprs.get(0);
+        return analysisCtx.matchedFuncExprs.get(firstExprIndex);
+    }
+
+    public static UnnestMapOperator createSecondaryIndexUnnestMap(Dataset dataset, ARecordType recordType, Index index,
+            ILogicalOperator inputOp, AccessMethodJobGenParams jobGenParams, IOptimizationContext context,
+            boolean outputPrimaryKeysOnly, boolean retainInput) throws AlgebricksException {
+        // The job gen parameters are transferred to the actual job gen via the UnnestMapOperator's function arguments.
+        ArrayList<Mutable<ILogicalExpression>> secondaryIndexFuncArgs = new ArrayList<Mutable<ILogicalExpression>>();
+        jobGenParams.writeToFuncArgs(secondaryIndexFuncArgs);
+        // Variables and types coming out of the secondary-index search. 
+        List<LogicalVariable> secondaryIndexUnnestVars = new ArrayList<LogicalVariable>();
+        List<Object> secondaryIndexOutputTypes = new ArrayList<Object>();
+        // Append output variables/types generated by the secondary-index search (not forwarded from input).
+        appendSecondaryIndexOutputVars(dataset, recordType, index, outputPrimaryKeysOnly, context,
+                secondaryIndexUnnestVars);
+        appendSecondaryIndexTypes(dataset, recordType, index, outputPrimaryKeysOnly, secondaryIndexOutputTypes);
+        // An index search is expressed as an unnest over an index-search function.
+        IFunctionInfo secondaryIndexSearch = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
+        UnnestingFunctionCallExpression secondaryIndexSearchFunc = new UnnestingFunctionCallExpression(
+                secondaryIndexSearch, secondaryIndexFuncArgs);
+        secondaryIndexSearchFunc.setReturnsUniqueValues(true);
+        // This is the operator that jobgen will be looking for. It contains an unnest function that has all necessary arguments to determine
+        // which index to use, which variables contain the index-search keys, what is the original dataset, etc.
+        UnnestMapOperator secondaryIndexUnnestOp = new UnnestMapOperator(secondaryIndexUnnestVars,
+                new MutableObject<ILogicalExpression>(secondaryIndexSearchFunc), secondaryIndexOutputTypes, retainInput);
+        secondaryIndexUnnestOp.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+        context.computeAndSetTypeEnvironmentForOperator(secondaryIndexUnnestOp);
+        secondaryIndexUnnestOp.setExecutionMode(ExecutionMode.PARTITIONED);
+        return secondaryIndexUnnestOp;
+    }
+
+    public static UnnestMapOperator createPrimaryIndexUnnestMap(DataSourceScanOperator dataSourceScan, Dataset dataset,
+            ARecordType recordType, ILogicalOperator inputOp, IOptimizationContext context, boolean sortPrimaryKeys,
+            boolean retainInput, boolean requiresBroadcast) throws AlgebricksException {
+        List<LogicalVariable> primaryKeyVars = AccessMethodUtils.getPrimaryKeyVarsFromUnnestMap(dataset, inputOp);
+        // Optionally add a sort on the primary-index keys before searching the primary index.
+        OrderOperator order = null;
+        if (sortPrimaryKeys) {
+            order = new OrderOperator();
+            for (LogicalVariable pkVar : primaryKeyVars) {
+                Mutable<ILogicalExpression> vRef = new MutableObject<ILogicalExpression>(
+                        new VariableReferenceExpression(pkVar));
+                order.getOrderExpressions().add(
+                        new Pair<IOrder, Mutable<ILogicalExpression>>(OrderOperator.ASC_ORDER, vRef));
+            }
+            // The secondary-index search feeds into the sort.
+            order.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+            order.setExecutionMode(ExecutionMode.LOCAL);
+            context.computeAndSetTypeEnvironmentForOperator(order);
+        }
+        // The job gen parameters are transferred to the actual job gen via the UnnestMapOperator's function arguments. 
+        List<Mutable<ILogicalExpression>> primaryIndexFuncArgs = new ArrayList<Mutable<ILogicalExpression>>();
+        BTreeJobGenParams jobGenParams = new BTreeJobGenParams(dataset.getDatasetName(), IndexType.BTREE,
+                dataset.getDataverseName(), dataset.getDatasetName(), retainInput, requiresBroadcast);
+        // Set low/high inclusive to true for a point lookup.
+        jobGenParams.setLowKeyInclusive(true);
+        jobGenParams.setHighKeyInclusive(true);
+        jobGenParams.setLowKeyVarList(primaryKeyVars, 0, primaryKeyVars.size());
+        jobGenParams.setHighKeyVarList(primaryKeyVars, 0, primaryKeyVars.size());
+        jobGenParams.writeToFuncArgs(primaryIndexFuncArgs);
+        // Variables and types coming out of the primary-index search.
+        List<LogicalVariable> primaryIndexUnnestVars = new ArrayList<LogicalVariable>();
+        List<Object> primaryIndexOutputTypes = new ArrayList<Object>();
+        // Append output variables/types generated by the primary-index search (not forwarded from input).
+        primaryIndexUnnestVars.addAll(dataSourceScan.getVariables());
+        try {
+            appendPrimaryIndexTypes(dataset, recordType, primaryIndexOutputTypes);
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+        // An index search is expressed as an unnest over an index-search function.
+        IFunctionInfo primaryIndexSearch = FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.INDEX_SEARCH);
+        AbstractFunctionCallExpression primaryIndexSearchFunc = new ScalarFunctionCallExpression(primaryIndexSearch,
+                primaryIndexFuncArgs);
+        // This is the operator that jobgen will be looking for. It contains an unnest function that has all necessary arguments to determine
+        // which index to use, which variables contain the index-search keys, what is the original dataset, etc.
+        UnnestMapOperator primaryIndexUnnestOp = new UnnestMapOperator(primaryIndexUnnestVars,
+                new MutableObject<ILogicalExpression>(primaryIndexSearchFunc), primaryIndexOutputTypes, retainInput);
+        // Fed by the order operator or the secondaryIndexUnnestOp.
+        if (sortPrimaryKeys) {
+            primaryIndexUnnestOp.getInputs().add(new MutableObject<ILogicalOperator>(order));
+        } else {
+            primaryIndexUnnestOp.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+        }
+        context.computeAndSetTypeEnvironmentForOperator(primaryIndexUnnestOp);
+        primaryIndexUnnestOp.setExecutionMode(ExecutionMode.PARTITIONED);
+        return primaryIndexUnnestOp;
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeAccessMethod.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeAccessMethod.java
new file mode 100644
index 0000000..ddcf768
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeAccessMethod.java
@@ -0,0 +1,585 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.BitSet;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IndexedNLJoinExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractBinaryJoinOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+
+/**
+ * Class for helping rewrite rules to choose and apply BTree indexes.
+ */
+public class BTreeAccessMethod implements IAccessMethod {
+
+    // Describes whether a search predicate is an open/closed interval.
+    private enum LimitType {
+        LOW_INCLUSIVE,
+        LOW_EXCLUSIVE,
+        HIGH_INCLUSIVE,
+        HIGH_EXCLUSIVE,
+        EQUAL
+    }
+
+    // TODO: There is some redundancy here, since these are listed in AlgebricksBuiltinFunctions as well.
+    private static List<FunctionIdentifier> funcIdents = new ArrayList<FunctionIdentifier>();
+    static {
+        funcIdents.add(AlgebricksBuiltinFunctions.EQ);
+        funcIdents.add(AlgebricksBuiltinFunctions.LE);
+        funcIdents.add(AlgebricksBuiltinFunctions.GE);
+        funcIdents.add(AlgebricksBuiltinFunctions.LT);
+        funcIdents.add(AlgebricksBuiltinFunctions.GT);
+    }
+
+    public static BTreeAccessMethod INSTANCE = new BTreeAccessMethod();
+
+    @Override
+    public List<FunctionIdentifier> getOptimizableFunctions() {
+        return funcIdents;
+    }
+
+    @Override
+    public boolean analyzeFuncExprArgs(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            AccessMethodAnalysisContext analysisCtx) {
+        boolean matches = AccessMethodUtils.analyzeFuncExprArgsForOneConstAndVar(funcExpr, analysisCtx);
+        if (!matches) {
+            matches = AccessMethodUtils.analyzeFuncExprArgsForTwoVars(funcExpr, analysisCtx);
+        }
+        return matches;
+    }
+
+    @Override
+    public boolean matchAllIndexExprs() {
+        return true;
+    }
+
+    @Override
+    public boolean matchPrefixIndexExprs() {
+        // TODO: The BTree can support prefix searches. Enable this later and add tests.
+        return false;
+    }
+
+    @Override
+    public boolean applySelectPlanTransformation(Mutable<ILogicalOperator> selectRef,
+            OptimizableOperatorSubTree subTree, Index chosenIndex, AccessMethodAnalysisContext analysisCtx,
+            IOptimizationContext context) throws AlgebricksException {
+        SelectOperator select = (SelectOperator) selectRef.getValue();
+        Mutable<ILogicalExpression> conditionRef = select.getCondition();
+        ILogicalOperator primaryIndexUnnestOp = createSecondaryToPrimaryPlan(selectRef, conditionRef, subTree, null,
+                chosenIndex, analysisCtx, false, false, context);
+        if (primaryIndexUnnestOp == null) {
+            return false;
+        }
+        Mutable<ILogicalOperator> assignRef = (subTree.assignRefs.isEmpty()) ? null : subTree.assignRefs.get(0);
+        AssignOperator assign = null;
+        if (assignRef != null) {
+            assign = (AssignOperator) assignRef.getValue();
+        }
+        // Generate new select using the new condition.
+        if (conditionRef.getValue() != null) {
+            select.getInputs().clear();
+            if (assign != null) {
+                subTree.dataSourceScanRef.setValue(primaryIndexUnnestOp);
+                select.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+            } else {
+                select.getInputs().add(new MutableObject<ILogicalOperator>(primaryIndexUnnestOp));
+            }
+        } else {
+            ((AbstractLogicalOperator) primaryIndexUnnestOp).setExecutionMode(ExecutionMode.PARTITIONED);
+            if (assign != null) {
+                subTree.dataSourceScanRef.setValue(primaryIndexUnnestOp);
+                selectRef.setValue(assign);
+            } else {
+                selectRef.setValue(primaryIndexUnnestOp);
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public boolean applyJoinPlanTransformation(Mutable<ILogicalOperator> joinRef,
+            OptimizableOperatorSubTree leftSubTree, OptimizableOperatorSubTree rightSubTree, Index chosenIndex,
+            AccessMethodAnalysisContext analysisCtx, IOptimizationContext context) throws AlgebricksException {
+        AbstractBinaryJoinOperator joinOp = (AbstractBinaryJoinOperator) joinRef.getValue();
+        Mutable<ILogicalExpression> conditionRef = joinOp.getCondition();
+        // Determine if the index is applicable on the left or right side (if both, we arbitrarily prefer the left side).
+        Dataset dataset = analysisCtx.indexDatasetMap.get(chosenIndex);
+        // Determine probe and index subtrees based on chosen index.
+        OptimizableOperatorSubTree indexSubTree = null;
+        OptimizableOperatorSubTree probeSubTree = null;
+        if (leftSubTree.dataset != null && dataset.getDatasetName().equals(leftSubTree.dataset.getDatasetName())) {
+            indexSubTree = leftSubTree;
+            probeSubTree = rightSubTree;
+        } else if (rightSubTree.dataset != null
+                && dataset.getDatasetName().equals(rightSubTree.dataset.getDatasetName())) {
+            indexSubTree = rightSubTree;
+            probeSubTree = leftSubTree;
+        }
+        ILogicalOperator primaryIndexUnnestOp = createSecondaryToPrimaryPlan(joinRef, conditionRef, indexSubTree,
+                probeSubTree, chosenIndex, analysisCtx, true, true, context);
+        if (primaryIndexUnnestOp == null) {
+            return false;
+        }
+        // If there are conditions left, add a new select operator on top.
+        indexSubTree.dataSourceScanRef.setValue(primaryIndexUnnestOp);
+        if (conditionRef.getValue() != null) {
+            SelectOperator topSelect = new SelectOperator(conditionRef);
+            topSelect.getInputs().add(indexSubTree.rootRef);
+            topSelect.setExecutionMode(ExecutionMode.LOCAL);
+            context.computeAndSetTypeEnvironmentForOperator(topSelect);
+            // Replace the original join with the new subtree rooted at the select op.
+            joinRef.setValue(topSelect);
+        } else {
+            joinRef.setValue(indexSubTree.rootRef.getValue());
+        }
+        return true;
+    }
+
+    private ILogicalOperator createSecondaryToPrimaryPlan(Mutable<ILogicalOperator> topOpRef,
+            Mutable<ILogicalExpression> conditionRef, OptimizableOperatorSubTree indexSubTree,
+            OptimizableOperatorSubTree probeSubTree, Index chosenIndex, AccessMethodAnalysisContext analysisCtx,
+            boolean retainInput, boolean requiresBroadcast, IOptimizationContext context) throws AlgebricksException {
+        Dataset dataset = indexSubTree.dataset;
+        ARecordType recordType = indexSubTree.recordType;
+        DataSourceScanOperator dataSourceScan = indexSubTree.dataSourceScan;
+        int numSecondaryKeys = chosenIndex.getKeyFieldNames().size();
+
+        // Info on high and low keys for the BTree search predicate.
+        ILogicalExpression[] lowKeyExprs = new ILogicalExpression[numSecondaryKeys];
+        ILogicalExpression[] highKeyExprs = new ILogicalExpression[numSecondaryKeys];
+        LimitType[] lowKeyLimits = new LimitType[numSecondaryKeys];
+        LimitType[] highKeyLimits = new LimitType[numSecondaryKeys];
+        boolean[] lowKeyInclusive = new boolean[numSecondaryKeys];
+        boolean[] highKeyInclusive = new boolean[numSecondaryKeys];
+
+        List<Integer> exprList = analysisCtx.indexExprs.get(chosenIndex);
+        List<IOptimizableFuncExpr> matchedFuncExprs = analysisCtx.matchedFuncExprs;
+        // List of function expressions that will be replaced by the secondary-index search.
+        // These func exprs will be removed from the select condition at the very end of this method.
+        Set<ILogicalExpression> replacedFuncExprs = new HashSet<ILogicalExpression>();
+        // TODO: For now we don't do any sophisticated analysis of the func exprs to come up with "the best" range predicate.
+        // If we can't figure out how to integrate a certain funcExpr into the current predicate, we just bail by setting this flag.
+        boolean couldntFigureOut = false;
+        boolean doneWithExprs = false;
+        boolean isEqCondition = false;
+        // TODO: For now don't consider prefix searches.
+        BitSet setLowKeys = new BitSet(numSecondaryKeys);
+        BitSet setHighKeys = new BitSet(numSecondaryKeys);
+        // Go through the func exprs listed as optimizable by the chosen index, 
+        // and formulate a range predicate on the secondary-index keys.
+        for (Integer exprIndex : exprList) {
+            // Position of the field of matchedFuncExprs.get(exprIndex) in the chosen index's indexed exprs.
+            IOptimizableFuncExpr optFuncExpr = matchedFuncExprs.get(exprIndex);
+            int keyPos = indexOf(optFuncExpr.getFieldName(0), chosenIndex.getKeyFieldNames());
+            if (keyPos < 0) {
+                if (optFuncExpr.getNumLogicalVars() > 1) {
+                    // If we are optimizing a join, the matching field may be the second field name.
+                    keyPos = indexOf(optFuncExpr.getFieldName(1), chosenIndex.getKeyFieldNames());
+                }
+            }
+            if (keyPos < 0) {
+                throw new AlgebricksException(
+                        "Could not match optimizable function expression to any index field name.");
+            }
+            ILogicalExpression searchKeyExpr = AccessMethodUtils.createSearchKeyExpr(optFuncExpr, indexSubTree,
+                    probeSubTree);
+            LimitType limit = getLimitType(optFuncExpr, probeSubTree);
+            switch (limit) {
+                case EQUAL: {
+                    if (lowKeyLimits[keyPos] == null && highKeyLimits[keyPos] == null) {
+                        lowKeyLimits[keyPos] = highKeyLimits[keyPos] = limit;
+                        lowKeyInclusive[keyPos] = highKeyInclusive[keyPos] = true;
+                        lowKeyExprs[keyPos] = highKeyExprs[keyPos] = searchKeyExpr;
+                        setLowKeys.set(keyPos);
+                        setHighKeys.set(keyPos);
+                        isEqCondition = true;
+                    } else {
+                        // Has already been set to the identical values. When optimizing join we may encounter the same optimizable expression twice
+                        // (once from analyzing each side of the join)
+                        if (lowKeyLimits[keyPos] == limit && lowKeyInclusive[keyPos] == true
+                                && lowKeyExprs[keyPos].equals(searchKeyExpr) && highKeyLimits[keyPos] == limit
+                                && highKeyInclusive[keyPos] == true && highKeyExprs[keyPos].equals(searchKeyExpr)) {
+                            isEqCondition = true;
+                            break;
+                        }
+                        couldntFigureOut = true;
+                    }
+                    // TODO: For now don't consider prefix searches.
+                    // If high and low keys are set, we exit for now.
+                    if (setLowKeys.cardinality() == numSecondaryKeys && setHighKeys.cardinality() == numSecondaryKeys) {
+                        doneWithExprs = true;
+                    }
+                    break;
+                }
+                case HIGH_EXCLUSIVE: {
+                    if (highKeyLimits[keyPos] == null || (highKeyLimits[keyPos] != null && highKeyInclusive[keyPos])) {
+                        highKeyLimits[keyPos] = limit;
+                        highKeyExprs[keyPos] = searchKeyExpr;
+                        highKeyInclusive[keyPos] = false;
+                    } else {
+                        // Has already been set to the identical values. When optimizing join we may encounter the same optimizable expression twice
+                        // (once from analyzing each side of the join)
+                        if (highKeyLimits[keyPos] == limit && highKeyInclusive[keyPos] == false
+                                && highKeyExprs[keyPos].equals(searchKeyExpr)) {
+                            break;
+                        }
+                        couldntFigureOut = true;
+                        doneWithExprs = true;
+                    }
+                    break;
+                }
+                case HIGH_INCLUSIVE: {
+                    if (highKeyLimits[keyPos] == null) {
+                        highKeyLimits[keyPos] = limit;
+                        highKeyExprs[keyPos] = searchKeyExpr;
+                        highKeyInclusive[keyPos] = true;
+                    } else {
+                        // Has already been set to the identical values. When optimizing join we may encounter the same optimizable expression twice
+                        // (once from analyzing each side of the join)
+                        if (highKeyLimits[keyPos] == limit && highKeyInclusive[keyPos] == true
+                                && highKeyExprs[keyPos].equals(searchKeyExpr)) {
+                            break;
+                        }
+                        couldntFigureOut = true;
+                        doneWithExprs = true;
+                    }
+                    break;
+                }
+                case LOW_EXCLUSIVE: {
+                    if (lowKeyLimits[keyPos] == null || (lowKeyLimits[keyPos] != null && lowKeyInclusive[keyPos])) {
+                        lowKeyLimits[keyPos] = limit;
+                        lowKeyExprs[keyPos] = searchKeyExpr;
+                        lowKeyInclusive[keyPos] = false;
+                    } else {
+                        // Has already been set to the identical values. When optimizing join we may encounter the same optimizable expression twice
+                        // (once from analyzing each side of the join)
+                        if (lowKeyLimits[keyPos] == limit && lowKeyInclusive[keyPos] == false
+                                && lowKeyExprs[keyPos].equals(searchKeyExpr)) {
+                            break;
+                        }
+                        couldntFigureOut = true;
+                        doneWithExprs = true;
+                    }
+                    break;
+                }
+                case LOW_INCLUSIVE: {
+                    if (lowKeyLimits[keyPos] == null) {
+                        lowKeyLimits[keyPos] = limit;
+                        lowKeyExprs[keyPos] = searchKeyExpr;
+                        lowKeyInclusive[keyPos] = true;
+                    } else {
+                        // Has already been set to the identical values. When optimizing join we may encounter the same optimizable expression twice
+                        // (once from analyzing each side of the join)
+                        if (lowKeyLimits[keyPos] == limit && lowKeyInclusive[keyPos] == true
+                                && lowKeyExprs[keyPos].equals(searchKeyExpr)) {
+                            break;
+                        }
+                        couldntFigureOut = true;
+                        doneWithExprs = true;
+                    }
+                    break;
+                }
+                default: {
+                    throw new IllegalStateException();
+                }
+            }
+            if (!couldntFigureOut) {
+                // Remember to remove this funcExpr later.
+                replacedFuncExprs.add(matchedFuncExprs.get(exprIndex).getFuncExpr());
+            }
+            if (doneWithExprs) {
+                break;
+            }
+        }
+        if (couldntFigureOut) {
+            return null;
+        }
+
+        // If the select condition contains mixed open/closed intervals on multiple keys, then we make all intervals closed to obtain a superset of answers and leave the original selection in place.
+        boolean primaryIndexPostProccessingIsNeeded = false;
+        for (int i = 1; i < numSecondaryKeys; ++i) {
+            if (lowKeyInclusive[i] != lowKeyInclusive[0]) {
+                Arrays.fill(lowKeyInclusive, true);
+                primaryIndexPostProccessingIsNeeded = true;
+                break;
+            }
+        }
+        for (int i = 1; i < numSecondaryKeys; ++i) {
+            if (highKeyInclusive[i] != highKeyInclusive[0]) {
+                Arrays.fill(highKeyInclusive, true);
+                primaryIndexPostProccessingIsNeeded = true;
+                break;
+            }
+        }
+
+        // Rule out the cases unsupported by the current btree search
+        // implementation.
+        for (int i = 1; i < numSecondaryKeys; i++) {
+            if (lowKeyLimits[0] == null && lowKeyLimits[i] != null || lowKeyLimits[0] != null
+                    && lowKeyLimits[i] == null) {
+                return null;
+            }
+            if (highKeyLimits[0] == null && highKeyLimits[i] != null || highKeyLimits[0] != null
+                    && highKeyLimits[i] == null) {
+                return null;
+            }
+        }
+        if (lowKeyLimits[0] == null) {
+            lowKeyInclusive[0] = true;
+        }
+        if (highKeyLimits[0] == null) {
+            highKeyInclusive[0] = true;
+        }
+
+        // Here we generate vars and funcs for assigning the secondary-index keys to be fed into the secondary-index search.
+        // List of variables for the assign.
+        ArrayList<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
+        // List of variables and expressions for the assign.
+        ArrayList<LogicalVariable> assignKeyVarList = new ArrayList<LogicalVariable>();
+        ArrayList<Mutable<ILogicalExpression>> assignKeyExprList = new ArrayList<Mutable<ILogicalExpression>>();
+        int numLowKeys = createKeyVarsAndExprs(lowKeyLimits, lowKeyExprs, assignKeyVarList, assignKeyExprList,
+                keyVarList, context);
+        int numHighKeys = createKeyVarsAndExprs(highKeyLimits, highKeyExprs, assignKeyVarList, assignKeyExprList,
+                keyVarList, context);
+
+        BTreeJobGenParams jobGenParams = new BTreeJobGenParams(chosenIndex.getIndexName(), IndexType.BTREE,
+                dataset.getDataverseName(), dataset.getDatasetName(), retainInput, requiresBroadcast);
+        jobGenParams.setLowKeyInclusive(lowKeyInclusive[0]);
+        jobGenParams.setHighKeyInclusive(highKeyInclusive[0]);
+        jobGenParams.setIsEqCondition(isEqCondition);
+        jobGenParams.setLowKeyVarList(keyVarList, 0, numLowKeys);
+        jobGenParams.setHighKeyVarList(keyVarList, numLowKeys, numHighKeys);
+
+        ILogicalOperator inputOp = null;
+        if (!assignKeyVarList.isEmpty()) {
+            // Assign operator that sets the constant secondary-index search-key fields if necessary.
+            AssignOperator assignConstantSearchKeys = new AssignOperator(assignKeyVarList, assignKeyExprList);
+            // Input to this assign is the EmptyTupleSource (which the dataSourceScan also must have had as input).
+            assignConstantSearchKeys.getInputs().add(dataSourceScan.getInputs().get(0));
+            assignConstantSearchKeys.setExecutionMode(dataSourceScan.getExecutionMode());
+            inputOp = assignConstantSearchKeys;
+        } else {
+            // All index search keys are variables.
+            inputOp = probeSubTree.root;
+        }
+
+        UnnestMapOperator secondaryIndexUnnestOp = AccessMethodUtils.createSecondaryIndexUnnestMap(dataset, recordType,
+                chosenIndex, inputOp, jobGenParams, context, false, retainInput);
+
+        // Generate the rest of the upstream plan which feeds the search results into the primary index.        
+        UnnestMapOperator primaryIndexUnnestOp;
+        boolean isPrimaryIndex = chosenIndex.getIndexName().equals(dataset.getDatasetName());
+        if (!isPrimaryIndex) {
+            primaryIndexUnnestOp = AccessMethodUtils.createPrimaryIndexUnnestMap(dataSourceScan, dataset, recordType,
+                    secondaryIndexUnnestOp, context, true, retainInput, false);
+
+            // Replace the datasource scan with the new plan rooted at
+            // primaryIndexUnnestMap.
+            indexSubTree.dataSourceScanRef.setValue(primaryIndexUnnestOp); //kisskys
+        } else {
+            List<Object> primaryIndexOutputTypes = new ArrayList<Object>();
+            try {
+                AccessMethodUtils.appendPrimaryIndexTypes(dataset, recordType, primaryIndexOutputTypes);
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+            primaryIndexUnnestOp = new UnnestMapOperator(dataSourceScan.getVariables(),
+                    secondaryIndexUnnestOp.getExpressionRef(), primaryIndexOutputTypes, retainInput);
+            primaryIndexUnnestOp.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+
+            if (!primaryIndexPostProccessingIsNeeded) {
+                List<Mutable<ILogicalExpression>> remainingFuncExprs = new ArrayList<Mutable<ILogicalExpression>>();
+                getNewConditionExprs(conditionRef, replacedFuncExprs, remainingFuncExprs);
+                // Generate new condition.
+                if (!remainingFuncExprs.isEmpty()) {
+                    ILogicalExpression pulledCond = createSelectCondition(remainingFuncExprs);
+                    conditionRef.setValue(pulledCond);
+                } else {
+                    conditionRef.setValue(null);
+                }
+            }
+        }
+        return primaryIndexUnnestOp;
+    }
+
+    private int createKeyVarsAndExprs(LimitType[] keyLimits, ILogicalExpression[] searchKeyExprs,
+            ArrayList<LogicalVariable> assignKeyVarList, ArrayList<Mutable<ILogicalExpression>> assignKeyExprList,
+            ArrayList<LogicalVariable> keyVarList, IOptimizationContext context) {
+        if (keyLimits[0] == null) {
+            return 0;
+        }
+        int numKeys = keyLimits.length;
+        for (int i = 0; i < numKeys; i++) {
+            ILogicalExpression searchKeyExpr = searchKeyExprs[i];
+            LogicalVariable keyVar = null;
+            if (searchKeyExpr.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
+                keyVar = context.newVar();
+                assignKeyExprList.add(new MutableObject<ILogicalExpression>(searchKeyExpr));
+                assignKeyVarList.add(keyVar);
+            } else {
+                keyVar = ((VariableReferenceExpression) searchKeyExpr).getVariableReference();
+            }
+            keyVarList.add(keyVar);
+        }
+        return numKeys;
+    }
+
+    private void getNewConditionExprs(Mutable<ILogicalExpression> conditionRef,
+            Set<ILogicalExpression> replacedFuncExprs, List<Mutable<ILogicalExpression>> remainingFuncExprs) {
+        remainingFuncExprs.clear();
+        if (replacedFuncExprs.isEmpty()) {
+            return;
+        }
+        AbstractFunctionCallExpression funcExpr = (AbstractFunctionCallExpression) conditionRef.getValue();
+        if (replacedFuncExprs.size() == 1) {
+            Iterator<ILogicalExpression> it = replacedFuncExprs.iterator();
+            if (!it.hasNext()) {
+                return;
+            }
+            if (funcExpr == it.next()) {
+                // There are no remaining function exprs.
+                return;
+            }
+        }
+        // The original select cond must be an AND. Check it just to be sure.
+        if (funcExpr.getFunctionIdentifier() != AlgebricksBuiltinFunctions.AND) {
+            throw new IllegalStateException();
+        }
+        // Clean the conjuncts.
+        for (Mutable<ILogicalExpression> arg : funcExpr.getArguments()) {
+            ILogicalExpression argExpr = arg.getValue();
+            if (argExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                continue;
+            }
+            // If the function expression was not replaced by the new index
+            // plan, then add it to the list of remaining function expressions.
+            if (!replacedFuncExprs.contains(argExpr)) {
+                remainingFuncExprs.add(arg);
+            }
+        }
+    }
+
+    private <T> int indexOf(T value, List<T> coll) {
+        int i = 0;
+        for (T member : coll) {
+            if (member.equals(value)) {
+                return i;
+            }
+            i++;
+        }
+        return -1;
+    }
+
+    private LimitType getLimitType(IOptimizableFuncExpr optFuncExpr, OptimizableOperatorSubTree probeSubTree) {
+        ComparisonKind ck = AlgebricksBuiltinFunctions.getComparisonType(optFuncExpr.getFuncExpr()
+                .getFunctionIdentifier());
+        LimitType limit = null;
+        switch (ck) {
+            case EQ: {
+                limit = LimitType.EQUAL;
+                break;
+            }
+            case GE: {
+                limit = probeIsOnLhs(optFuncExpr, probeSubTree) ? LimitType.HIGH_INCLUSIVE : LimitType.LOW_INCLUSIVE;
+                break;
+            }
+            case GT: {
+                limit = probeIsOnLhs(optFuncExpr, probeSubTree) ? LimitType.HIGH_EXCLUSIVE : LimitType.LOW_EXCLUSIVE;
+                break;
+            }
+            case LE: {
+                limit = probeIsOnLhs(optFuncExpr, probeSubTree) ? LimitType.LOW_INCLUSIVE : LimitType.HIGH_INCLUSIVE;
+                break;
+            }
+            case LT: {
+                limit = probeIsOnLhs(optFuncExpr, probeSubTree) ? LimitType.LOW_EXCLUSIVE : LimitType.HIGH_EXCLUSIVE;
+                break;
+            }
+            case NEQ: {
+                limit = null;
+                break;
+            }
+            default: {
+                throw new IllegalStateException();
+            }
+        }
+        return limit;
+    }
+
+    private boolean probeIsOnLhs(IOptimizableFuncExpr optFuncExpr, OptimizableOperatorSubTree probeSubTree) {
+        if (probeSubTree == null) {
+            // We are optimizing a selection query. Search key is a constant. Return true if constant is on lhs.
+            return optFuncExpr.getFuncExpr().getArguments().get(0) == optFuncExpr.getConstantVal(0);
+        } else {
+            // We are optimizing a join query. Determine whether the feeding variable is on the lhs. 
+            return (optFuncExpr.getOperatorSubTree(0) == null || optFuncExpr.getOperatorSubTree(0) == probeSubTree);
+        }
+    }
+
+    private ILogicalExpression createSelectCondition(List<Mutable<ILogicalExpression>> predList) {
+        if (predList.size() > 1) {
+            IFunctionInfo finfo = AsterixBuiltinFunctions.getAsterixFunctionInfo(AlgebricksBuiltinFunctions.AND);
+            return new ScalarFunctionCallExpression(finfo, predList);
+        }
+        return predList.get(0).getValue();
+    }
+
+    @Override
+    public boolean exprIsOptimizable(Index index, IOptimizableFuncExpr optFuncExpr) {
+        // If we are optimizing a join, check for the indexed nested-loop join hint.
+        if (optFuncExpr.getNumLogicalVars() == 2) {
+            if (!optFuncExpr.getFuncExpr().getAnnotations().containsKey(IndexedNLJoinExpressionAnnotation.INSTANCE)) {
+                return false;
+            }
+        }
+        // No additional analysis required for BTrees.
+        return true;
+    }
+}
\ No newline at end of file
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeJobGenParams.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeJobGenParams.java
new file mode 100644
index 0000000..8b7636b
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/BTreeJobGenParams.java
@@ -0,0 +1,120 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+
+/**
+ * Helper class for reading and writing job-gen parameters for BTree access methods to
+ * and from a list of function arguments, typically of an unnest-map.
+ */
+public class BTreeJobGenParams extends AccessMethodJobGenParams {
+
+    protected List<LogicalVariable> lowKeyVarList;
+    protected List<LogicalVariable> highKeyVarList;
+
+    protected boolean lowKeyInclusive;
+    protected boolean highKeyInclusive;
+    protected boolean isEqCondition;
+
+    public BTreeJobGenParams() {
+        super();
+    }
+
+    public BTreeJobGenParams(String indexName, IndexType indexType, String dataverseName, String datasetName,
+            boolean retainInput, boolean requiresBroadcast) {
+        super(indexName, indexType, dataverseName, datasetName, retainInput, requiresBroadcast);
+    }
+
+    public void setLowKeyVarList(List<LogicalVariable> keyVarList, int startIndex, int numKeys) {
+        lowKeyVarList = new ArrayList<LogicalVariable>(numKeys);
+        setKeyVarList(keyVarList, lowKeyVarList, startIndex, numKeys);
+    }
+
+    public void setHighKeyVarList(List<LogicalVariable> keyVarList, int startIndex, int numKeys) {
+        highKeyVarList = new ArrayList<LogicalVariable>(numKeys);
+        setKeyVarList(keyVarList, highKeyVarList, startIndex, numKeys);
+    }
+
+    private void setKeyVarList(List<LogicalVariable> src, List<LogicalVariable> dest, int startIndex, int numKeys) {
+        for (int i = 0; i < numKeys; i++) {
+            dest.add(src.get(startIndex + i));
+        }
+    }
+
+    public void setLowKeyInclusive(boolean lowKeyInclusive) {
+        this.lowKeyInclusive = lowKeyInclusive;
+    }
+
+    public void setHighKeyInclusive(boolean highKeyInclusive) {
+        this.highKeyInclusive = highKeyInclusive;
+    }
+
+    public void setIsEqCondition(boolean isEqConsition) {
+        this.isEqCondition = isEqConsition;
+    }
+
+    public void writeToFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.writeToFuncArgs(funcArgs);
+        writeVarList(lowKeyVarList, funcArgs);
+        writeVarList(highKeyVarList, funcArgs);
+        writeBoolean(lowKeyInclusive, funcArgs);
+        writeBoolean(highKeyInclusive, funcArgs);
+        writeBoolean(isEqCondition, funcArgs);
+    }
+
+    public void readFromFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.readFromFuncArgs(funcArgs);
+        int index = super.getNumParams();
+        lowKeyVarList = new ArrayList<LogicalVariable>();
+        highKeyVarList = new ArrayList<LogicalVariable>();
+        int nextIndex = readVarList(funcArgs, index, lowKeyVarList);
+        nextIndex = readVarList(funcArgs, nextIndex, highKeyVarList);
+        nextIndex = readKeyInclusives(funcArgs, nextIndex);
+        readIsEqCondition(funcArgs, nextIndex);
+    }
+
+    private int readKeyInclusives(List<Mutable<ILogicalExpression>> funcArgs, int index) {
+        lowKeyInclusive = ((ConstantExpression) funcArgs.get(index).getValue()).getValue().isTrue();
+        // Read the next function argument at index + 1.
+        highKeyInclusive = ((ConstantExpression) funcArgs.get(index + 1).getValue()).getValue().isTrue();
+        // We have read two of the function arguments, so the next index is at index + 2.
+        return index + 2;
+    }
+
+    private void readIsEqCondition(List<Mutable<ILogicalExpression>> funcArgs, int index) {
+        isEqCondition = ((ConstantExpression) funcArgs.get(index).getValue()).getValue().isTrue();
+    }
+
+    private void writeBoolean(boolean val, List<Mutable<ILogicalExpression>> funcArgs) {
+        ILogicalExpression keyExpr = val ? ConstantExpression.TRUE : ConstantExpression.FALSE;
+        funcArgs.add(new MutableObject<ILogicalExpression>(keyExpr));
+    }
+
+    public List<LogicalVariable> getLowKeyVarList() {
+        return lowKeyVarList;
+    }
+
+    public List<LogicalVariable> getHighKeyVarList() {
+        return highKeyVarList;
+    }
+
+    public boolean isEqCondition() {
+        return isEqCondition;
+    }
+
+    public boolean isLowKeyInclusive() {
+        return lowKeyInclusive;
+    }
+
+    public boolean isHighKeyInclusive() {
+        return highKeyInclusive;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IAccessMethod.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IAccessMethod.java
new file mode 100644
index 0000000..eadbc69
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IAccessMethod.java
@@ -0,0 +1,77 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+
+/**
+ * Interface that an access method should implement to work with the rewrite
+ * rules to apply it for join and/or selection queries. This interface provides
+ * methods for analyzing a select/join condition, and for rewriting the plan
+ * with a given index.
+ */
+public interface IAccessMethod {
+
+    /**
+     * @return A list of function identifiers that are optimizable by this
+     *         access method.
+     */
+    public List<FunctionIdentifier> getOptimizableFunctions();
+
+    /**
+     * Analyzes the arguments of a given optimizable funcExpr to see if this
+     * access method is applicable (e.g., one arg is a constant and one is a
+     * var). We assume that the funcExpr has already been determined to be
+     * optimizable by this access method based on its function identifier. If
+     * funcExpr has been found to be optimizable, this method adds an
+     * OptimizableFunction to analysisCtx.matchedFuncExprs for further analysis.
+     * 
+     * @return true if funcExpr is optimizable by this access method, false
+     *         otherwise
+     */
+    public boolean analyzeFuncExprArgs(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            AccessMethodAnalysisContext analysisCtx);
+
+    /**
+     * Indicates whether all index expressions must be matched in order for this
+     * index to be applicable.
+     * 
+     * @return boolean
+     */
+    public boolean matchAllIndexExprs();
+
+    /**
+     * Indicates whether this index is applicable if only a prefix of the index
+     * expressions are matched.
+     * 
+     * @return boolean
+     */
+    public boolean matchPrefixIndexExprs();
+
+    /**
+     * Applies the plan transformation to use chosenIndex to optimize a selection query.
+     */
+    public boolean applySelectPlanTransformation(Mutable<ILogicalOperator> selectRef,
+            OptimizableOperatorSubTree subTree, Index chosenIndex, AccessMethodAnalysisContext analysisCtx,
+            IOptimizationContext context) throws AlgebricksException;
+
+    /**
+     * Applies the plan transformation to use chosenIndex to optimize a join query.
+     */
+    public boolean applyJoinPlanTransformation(Mutable<ILogicalOperator> joinRef,
+            OptimizableOperatorSubTree leftSubTree, OptimizableOperatorSubTree rightSubTree, Index chosenIndex,
+            AccessMethodAnalysisContext analysisCtx, IOptimizationContext context) throws AlgebricksException;
+
+    /**
+     * Analyzes expr to see whether it is optimizable by the given concrete index.
+     */
+    public boolean exprIsOptimizable(Index index, IOptimizableFuncExpr optFuncExpr);
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
new file mode 100644
index 0000000..aa38ce9
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+
+/**
+ * Describes a function expression that is optimizable by an access method.
+ * Provides convenient methods for accessing arguments (constants, variables)
+ * and metadata of such a function.
+ */
+public interface IOptimizableFuncExpr {
+    public AbstractFunctionCallExpression getFuncExpr();
+    public int getNumLogicalVars();
+    public int getNumConstantVals();
+    public LogicalVariable getLogicalVar(int index);
+    public void setFieldName(int index, String fieldName);
+    public String getFieldName(int index);
+    public void setOptimizableSubTree(int index, OptimizableOperatorSubTree subTree);
+    public OptimizableOperatorSubTree getOperatorSubTree(int index);
+    public IAlgebricksConstantValue getConstantVal(int index);
+    
+    public int findLogicalVar(LogicalVariable var);
+    public int findFieldName(String fieldName);
+    public void substituteVar(LogicalVariable original, LogicalVariable substitution);
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java
new file mode 100644
index 0000000..d6f0279
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java
@@ -0,0 +1,165 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InnerJoinOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
+
+/**
+ * This rule optimizes a join with secondary indexes into an indexed nested-loop join.
+ * 
+ * Matches the following operator pattern:
+ * (join) <-- (select)? <-- (assign)+ <-- (datasource scan)
+ *        <-- (select)? <-- (assign)+ <-- (datasource scan)
+ * 
+ * Replaces the above pattern with the following simplified plan: 
+ * (select) <-- (assign) <-- (btree search) <-- (sort) <-- (unnest(index search)) <-- (assign) <-- (datasource scan)
+ * The sort is optional, and some access methods may choose not to sort.
+ * 
+ * Note that for some index-based optimizations we do not remove the triggering
+ * condition from the join, since the secondary index may only act as a filter, and the
+ * final verification must still be done with the original join condition.
+ * 
+ * The basic outline of this rule is: 
+ * 1. Match operator pattern. 
+ * 2. Analyze join condition to see if there are optimizable functions (delegated to IAccessMethods). 
+ * 3. Check metadata to see if there are applicable indexes. 
+ * 4. Choose an index to apply (for now only a single index will be chosen).
+ * 5. Rewrite plan using index (delegated to IAccessMethods).
+ * 
+ * TODO (Alex): Currently this rule requires a data scan on both inputs of the join. I should generalize the pattern 
+ * to accept any subtree on one side, as long as the other side has a datasource scan.
+ */
+public class IntroduceJoinAccessMethodRule extends AbstractIntroduceAccessMethodRule {
+
+    protected Mutable<ILogicalOperator> joinRef = null;
+    protected InnerJoinOperator join = null;
+    protected AbstractFunctionCallExpression joinCond = null;
+    protected final OptimizableOperatorSubTree leftSubTree = new OptimizableOperatorSubTree();
+    protected final OptimizableOperatorSubTree rightSubTree = new OptimizableOperatorSubTree();
+
+    // Register access methods.
+    protected static Map<FunctionIdentifier, List<IAccessMethod>> accessMethods = new HashMap<FunctionIdentifier, List<IAccessMethod>>();
+    static {
+        registerAccessMethod(BTreeAccessMethod.INSTANCE, accessMethods);
+        registerAccessMethod(RTreeAccessMethod.INSTANCE, accessMethods);
+        registerAccessMethod(InvertedIndexAccessMethod.INSTANCE, accessMethods);        
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        clear();
+        setMetadataDeclarations(context);
+
+        // Match operator pattern and initialize optimizable sub trees.
+        if (!matchesOperatorPattern(opRef, context)) {
+            return false;
+        }
+        // Analyze condition on those optimizable subtrees that have a datasource scan.
+        Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs = new HashMap<IAccessMethod, AccessMethodAnalysisContext>();
+        boolean matchInLeftSubTree = false;
+        boolean matchInRightSubTree = false;
+        if (leftSubTree.hasDataSourceScan()) {
+            matchInLeftSubTree = analyzeCondition(joinCond, leftSubTree.assigns, analyzedAMs);
+        }
+        if (rightSubTree.hasDataSourceScan()) {
+            matchInRightSubTree = analyzeCondition(joinCond, rightSubTree.assigns, analyzedAMs);
+        }
+        if (!matchInLeftSubTree && !matchInRightSubTree) {
+            return false;
+        }
+
+        // Set dataset and type metadata.
+        AqlMetadataProvider metadataProvider = (AqlMetadataProvider) context.getMetadataProvider();
+        boolean checkLeftSubTreeMetadata = false;
+        boolean checkRightSubTreeMetadata = false;
+        if (matchInLeftSubTree) {
+            checkLeftSubTreeMetadata = leftSubTree.setDatasetAndTypeMetadata(metadataProvider);
+        }
+        if (matchInRightSubTree) {
+            checkRightSubTreeMetadata = rightSubTree.setDatasetAndTypeMetadata(metadataProvider);
+        }
+        if (!checkLeftSubTreeMetadata && !checkRightSubTreeMetadata) {
+            return false;
+        }
+        if (checkLeftSubTreeMetadata) {
+            fillSubTreeIndexExprs(leftSubTree, analyzedAMs);
+        }
+        if (checkRightSubTreeMetadata) {
+            fillSubTreeIndexExprs(rightSubTree, analyzedAMs);
+        }
+        pruneIndexCandidates(analyzedAMs);
+
+        // Choose index to be applied.
+        Pair<IAccessMethod, Index> chosenIndex = chooseIndex(analyzedAMs);
+        if (chosenIndex == null) {
+            context.addToDontApplySet(this, join);
+            return false;
+        }
+
+        // Apply plan transformation using chosen index.
+        AccessMethodAnalysisContext analysisCtx = analyzedAMs.get(chosenIndex.first);
+        boolean res = chosenIndex.first.applyJoinPlanTransformation(joinRef, leftSubTree, rightSubTree,
+                chosenIndex.second, analysisCtx, context);
+        if (res) {
+            OperatorPropertiesUtil.typeOpRec(opRef, context);            
+        }
+        context.addToDontApplySet(this, join);
+        return res;
+    }
+
+    protected boolean matchesOperatorPattern(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
+        // First check that the operator is a join and its condition is a function call.
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        if (context.checkIfInDontApplySet(this, op1)) {
+            return false;
+        }
+        if (op1.getOperatorTag() != LogicalOperatorTag.INNERJOIN) {
+            return false;
+        }
+        // Set and analyze select.
+        joinRef = opRef;
+        join = (InnerJoinOperator) op1;
+        // Check that the select's condition is a function call.
+        ILogicalExpression condExpr = join.getCondition().getValue();
+        if (condExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return false;
+        }
+        joinCond = (AbstractFunctionCallExpression) condExpr;
+        leftSubTree.initFromSubTree(op1.getInputs().get(0));
+        rightSubTree.initFromSubTree(op1.getInputs().get(1));
+        // One of the subtrees must have a datasource scan.
+        if (leftSubTree.hasDataSourceScan() || rightSubTree.hasDataSourceScan()) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public Map<FunctionIdentifier, List<IAccessMethod>> getAccessMethods() {
+        return accessMethods;
+    }
+    
+    private void clear() {
+        joinRef = null;
+        join = null;
+        joinCond = null;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java
new file mode 100644
index 0000000..abfcfb3
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java
@@ -0,0 +1,144 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
+
+/**
+ * This rule optimizes simple selections with secondary or primary indexes. The use of an
+ * index is expressed as an unnest-map over an index-search function which will be
+ * replaced with the appropriate embodiment during codegen.
+ * 
+ * Matches the following operator patterns:
+ * Standard secondary index pattern:
+ * There must be at least one assign, but there may be more, e.g., when matching similarity-jaccard-check().
+ * (select) <-- (assign)+ <-- (datasource scan)
+ * Primary index lookup pattern:
+ * Since no assign is necessary to get the primary key fields (they are already stored fields in the BTree tuples).
+ * (select) <-- (datasource scan)
+ * 
+ * Replaces the above patterns with this plan:
+ * (select) <-- (assign) <-- (btree search) <-- (sort) <-- (unnest-map(index search)) <-- (assign)
+ * The sort is optional, and some access methods implementations may choose not to sort.
+ * 
+ * Note that for some index-based optimizations we do not remove the triggering
+ * condition from the select, since the index may only acts as a filter, and the
+ * final verification must still be done with the original select condition.
+ * 
+ * The basic outline of this rule is: 
+ * 1. Match operator pattern. 
+ * 2. Analyze select condition to see if there are optimizable functions (delegated to IAccessMethods). 
+ * 3. Check metadata to see if there are applicable indexes. 
+ * 4. Choose an index to apply (for now only a single index will be chosen).
+ * 5. Rewrite plan using index (delegated to IAccessMethods).
+ * 
+ */
+public class IntroduceSelectAccessMethodRule extends AbstractIntroduceAccessMethodRule {
+
+    // Operators representing the patterns to be matched:
+    // These ops are set in matchesPattern()
+    protected Mutable<ILogicalOperator> selectRef = null;
+    protected SelectOperator select = null;
+    protected AbstractFunctionCallExpression selectCond = null;
+    protected final OptimizableOperatorSubTree subTree = new OptimizableOperatorSubTree();
+
+    // Register access methods.
+    protected static Map<FunctionIdentifier, List<IAccessMethod>> accessMethods = new HashMap<FunctionIdentifier, List<IAccessMethod>>();
+    static {
+        registerAccessMethod(BTreeAccessMethod.INSTANCE, accessMethods);
+        registerAccessMethod(RTreeAccessMethod.INSTANCE, accessMethods);
+        registerAccessMethod(InvertedIndexAccessMethod.INSTANCE, accessMethods);
+    }
+
+    @Override
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
+        clear();
+        setMetadataDeclarations(context);
+
+        // Match operator pattern and initialize operator members.
+        if (!matchesOperatorPattern(opRef, context)) {
+            return false;
+        }
+
+        // Analyze select condition.
+        Map<IAccessMethod, AccessMethodAnalysisContext> analyzedAMs = new HashMap<IAccessMethod, AccessMethodAnalysisContext>();
+        if (!analyzeCondition(selectCond, subTree.assigns, analyzedAMs)) {
+            return false;
+        }
+
+        // Set dataset and type metadata.
+        if (!subTree.setDatasetAndTypeMetadata((AqlMetadataProvider) context.getMetadataProvider())) {
+            return false;
+        }
+
+        fillSubTreeIndexExprs(subTree, analyzedAMs);
+        pruneIndexCandidates(analyzedAMs);
+
+        // Choose index to be applied.
+        Pair<IAccessMethod, Index> chosenIndex = chooseIndex(analyzedAMs);
+        if (chosenIndex == null) {
+            context.addToDontApplySet(this, select);
+            return false;
+        }
+
+        // Apply plan transformation using chosen index.
+        AccessMethodAnalysisContext analysisCtx = analyzedAMs.get(chosenIndex.first);
+        boolean res = chosenIndex.first.applySelectPlanTransformation(selectRef, subTree, chosenIndex.second,
+                analysisCtx, context);
+        if (res) {
+            OperatorPropertiesUtil.typeOpRec(opRef, context);
+        }
+        context.addToDontApplySet(this, select);
+        return res;
+    }
+
+    protected boolean matchesOperatorPattern(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
+        // First check that the operator is a select and its condition is a function call.
+        AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
+        if (context.checkIfInDontApplySet(this, op1)) {
+            return false;
+        }
+        if (op1.getOperatorTag() != LogicalOperatorTag.SELECT) {
+            return false;
+        }
+        // Set and analyze select.
+        selectRef = opRef;
+        select = (SelectOperator) op1;
+        // Check that the select's condition is a function call.
+        ILogicalExpression condExpr = select.getCondition().getValue();
+        if (condExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return false;
+        }
+        selectCond = (AbstractFunctionCallExpression) condExpr;
+        return subTree.initFromSubTree(op1.getInputs().get(0));
+    }
+
+    @Override
+    public Map<FunctionIdentifier, List<IAccessMethod>> getAccessMethods() {
+        return accessMethods;
+    }
+    
+    private void clear() {
+        selectRef = null;
+        select = null;
+        selectCond = null;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexAccessMethod.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexAccessMethod.java
new file mode 100644
index 0000000..ff260f1
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexAccessMethod.java
@@ -0,0 +1,896 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.algebra.base.LogicalOperatorDeepCopyVisitor;
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryTokenizerFactoryProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.base.AFloat;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.IACollection;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InnerJoinOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ReplicateOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnionAllOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.search.ConjunctiveSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.search.EditDistanceSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.search.JaccardSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.search.ListEditDistanceSearchModifierFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+
+/**
+ * Class for helping rewrite rules to choose and apply inverted indexes.
+ */
+public class InvertedIndexAccessMethod implements IAccessMethod {
+
+    // Enum describing the search modifier type. Used for passing info to jobgen.
+    public static enum SearchModifierType {
+        CONJUNCTIVE,
+        JACCARD,
+        EDIT_DISTANCE,
+        INVALID
+    }
+
+    private static List<FunctionIdentifier> funcIdents = new ArrayList<FunctionIdentifier>();
+    static {
+        funcIdents.add(AsterixBuiltinFunctions.CONTAINS);
+        // For matching similarity-check functions. For example, similarity-jaccard-check returns a list of two items,
+        // and the select condition will get the first list-item and check whether it evaluates to true. 
+        funcIdents.add(AsterixBuiltinFunctions.GET_ITEM);
+    }
+
+    // These function identifiers are matched in this AM's analyzeFuncExprArgs(), 
+    // and are not visible to the outside driver.
+    private static HashSet<FunctionIdentifier> secondLevelFuncIdents = new HashSet<FunctionIdentifier>();
+    static {
+        secondLevelFuncIdents.add(AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK);
+        secondLevelFuncIdents.add(AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK);
+    }
+
+    public static InvertedIndexAccessMethod INSTANCE = new InvertedIndexAccessMethod();
+
+    @Override
+    public List<FunctionIdentifier> getOptimizableFunctions() {
+        return funcIdents;
+    }
+
+    @Override
+    public boolean analyzeFuncExprArgs(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            AccessMethodAnalysisContext analysisCtx) {
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.CONTAINS) {
+            return AccessMethodUtils.analyzeFuncExprArgsForOneConstAndVar(funcExpr, analysisCtx);
+        }
+        return analyzeGetItemFuncExpr(funcExpr, assigns, analysisCtx);
+    }
+
+    public boolean analyzeGetItemFuncExpr(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            AccessMethodAnalysisContext analysisCtx) {
+        if (funcExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.GET_ITEM) {
+            return false;
+        }
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        // The second arg is the item index to be accessed. It must be a constant.
+        if (arg2.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+            return false;
+        }
+        // The first arg must be a variable or a function expr.
+        // If it is a variable we must track its origin in the assigns to get the original function expr.
+        if (arg1.getExpressionTag() != LogicalExpressionTag.VARIABLE
+                && arg1.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+            return false;
+        }
+        AbstractFunctionCallExpression matchedFuncExpr = null;
+        // The get-item arg is function call, directly check if it's optimizable.
+        if (arg1.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+            matchedFuncExpr = (AbstractFunctionCallExpression) arg1;
+        }
+        // The get-item arg is a variable. Search the assigns for its origination function.
+        int matchedAssignIndex = -1;
+        if (arg1.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+            VariableReferenceExpression varRefExpr = (VariableReferenceExpression) arg1;
+            // Try to find variable ref expr in all assigns.
+            for (int i = 0; i < assigns.size(); i++) {
+                AssignOperator assign = assigns.get(i);
+                List<LogicalVariable> assignVars = assign.getVariables();
+                List<Mutable<ILogicalExpression>> assignExprs = assign.getExpressions();
+                for (int j = 0; j < assignVars.size(); j++) {
+                    LogicalVariable var = assignVars.get(j);
+                    if (var != varRefExpr.getVariableReference()) {
+                        continue;
+                    }
+                    // We've matched the variable in the first assign. Now analyze the originating function.
+                    ILogicalExpression matchedExpr = assignExprs.get(j).getValue();
+                    if (matchedExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                        return false;
+                    }
+                    matchedAssignIndex = i;
+                    matchedFuncExpr = (AbstractFunctionCallExpression) matchedExpr;
+                    break;
+                }
+                // We've already found a match.
+                if (matchedFuncExpr != null) {
+                    break;
+                }
+            }
+        }
+        // Check that the matched function is optimizable by this access method.
+        if (!secondLevelFuncIdents.contains(matchedFuncExpr.getFunctionIdentifier())) {
+            return false;
+        }
+        boolean selectMatchFound = analyzeSelectSimilarityCheckFuncExprArgs(matchedFuncExpr, assigns,
+                matchedAssignIndex, analysisCtx);
+        boolean joinMatchFound = analyzeJoinSimilarityCheckFuncExprArgs(matchedFuncExpr, assigns, matchedAssignIndex,
+                analysisCtx);
+        if (selectMatchFound || joinMatchFound) {
+            return true;
+        }
+        return false;
+    }
+
+    private boolean analyzeJoinSimilarityCheckFuncExprArgs(AbstractFunctionCallExpression funcExpr,
+            List<AssignOperator> assigns, int matchedAssignIndex, AccessMethodAnalysisContext analysisCtx) {
+        // There should be exactly three arguments.
+        // The last function argument is assumed to be the similarity threshold.
+        IAlgebricksConstantValue constThreshVal = null;
+        ILogicalExpression arg3 = funcExpr.getArguments().get(2).getValue();
+        if (arg3.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+            return false;
+        }
+        constThreshVal = ((ConstantExpression) arg3).getValue();
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        // We expect arg1 and arg2 to be non-constants for a join.
+        if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT
+                || arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT) {
+            return false;
+        }
+        LogicalVariable fieldVar1 = getNonConstArgFieldVar(arg1, funcExpr, assigns, matchedAssignIndex);
+        if (fieldVar1 == null) {
+            return false;
+        }
+        LogicalVariable fieldVar2 = getNonConstArgFieldVar(arg2, funcExpr, assigns, matchedAssignIndex);
+        if (fieldVar2 == null) {
+            return false;
+        }
+        analysisCtx.matchedFuncExprs.add(new OptimizableFuncExpr(funcExpr,
+                new LogicalVariable[] { fieldVar1, fieldVar2 }, new IAlgebricksConstantValue[] { constThreshVal }));
+        return true;
+    }
+
+    private boolean analyzeSelectSimilarityCheckFuncExprArgs(AbstractFunctionCallExpression funcExpr,
+            List<AssignOperator> assigns, int matchedAssignIndex, AccessMethodAnalysisContext analysisCtx) {
+        // There should be exactly three arguments.
+        // The last function argument is assumed to be the similarity threshold.
+        IAlgebricksConstantValue constThreshVal = null;
+        ILogicalExpression arg3 = funcExpr.getArguments().get(2).getValue();
+        if (arg3.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+            return false;
+        }
+        constThreshVal = ((ConstantExpression) arg3).getValue();
+        ILogicalExpression arg1 = funcExpr.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = funcExpr.getArguments().get(1).getValue();
+        // Determine whether one arg is constant, and the other is non-constant.
+        ILogicalExpression constArg = null;
+        ILogicalExpression nonConstArg = null;
+        if (arg1.getExpressionTag() == LogicalExpressionTag.CONSTANT
+                && arg2.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+            constArg = arg1;
+            nonConstArg = arg2;
+        } else if (arg2.getExpressionTag() == LogicalExpressionTag.CONSTANT
+                && arg1.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+            constArg = arg2;
+            nonConstArg = arg1;
+        } else {
+            return false;
+        }
+        ConstantExpression constExpr = (ConstantExpression) constArg;
+        IAlgebricksConstantValue constFilterVal = constExpr.getValue();
+        LogicalVariable fieldVar = getNonConstArgFieldVar(nonConstArg, funcExpr, assigns, matchedAssignIndex);
+        if (fieldVar == null) {
+            return false;
+        }
+        analysisCtx.matchedFuncExprs.add(new OptimizableFuncExpr(funcExpr, new LogicalVariable[] { fieldVar },
+                new IAlgebricksConstantValue[] { constFilterVal, constThreshVal }));
+        return true;
+    }
+
+    private LogicalVariable getNonConstArgFieldVar(ILogicalExpression nonConstArg,
+            AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns, int matchedAssignIndex) {
+        LogicalVariable fieldVar = null;
+        // Analyze nonConstArg depending on similarity function.
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK) {
+            AbstractFunctionCallExpression nonConstFuncExpr = funcExpr;
+            if (nonConstArg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                nonConstFuncExpr = (AbstractFunctionCallExpression) nonConstArg;
+                // TODO: Currently, we're only looking for word and gram tokens (non hashed).
+                if (nonConstFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.WORD_TOKENS
+                        && nonConstFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.GRAM_TOKENS) {
+                    return null;
+                }
+                // Find the variable that is being tokenized.
+                nonConstArg = nonConstFuncExpr.getArguments().get(0).getValue();
+            }
+            if (nonConstArg.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                VariableReferenceExpression varExpr = (VariableReferenceExpression) nonConstArg;
+                fieldVar = varExpr.getVariableReference();
+                // Find expr corresponding to var in assigns below.
+                for (int i = matchedAssignIndex + 1; i < assigns.size(); i++) {
+                    AssignOperator assign = assigns.get(i);
+                    boolean found = false;
+                    for (int j = 0; j < assign.getVariables().size(); j++) {
+                        if (fieldVar != assign.getVariables().get(j)) {
+                            continue;
+                        }
+                        ILogicalExpression childExpr = assign.getExpressions().get(j).getValue();
+                        if (childExpr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
+                            break;
+                        }
+                        AbstractFunctionCallExpression childFuncExpr = (AbstractFunctionCallExpression) childExpr;
+                        // If fieldVar references the result of a tokenization, then we should remember the variable being tokenized.
+                        if (childFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.WORD_TOKENS
+                                && childFuncExpr.getFunctionIdentifier() != AsterixBuiltinFunctions.GRAM_TOKENS) {
+                            break;
+                        }
+                        // We expect the tokenizer's argument to be a variable, otherwise we cannot apply an index.
+                        ILogicalExpression tokArgExpr = childFuncExpr.getArguments().get(0).getValue();
+                        if (tokArgExpr.getExpressionTag() != LogicalExpressionTag.VARIABLE) {
+                            break;
+                        }
+                        // Pass the variable being tokenized to the optimizable func expr.
+                        VariableReferenceExpression tokArgVarExpr = (VariableReferenceExpression) tokArgExpr;
+                        fieldVar = tokArgVarExpr.getVariableReference();
+                        found = true;
+                        break;
+                    }
+                    if (found) {
+                        break;
+                    }
+                }
+            }
+        }
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK) {
+            if (nonConstArg.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                fieldVar = ((VariableReferenceExpression) nonConstArg).getVariableReference();
+            }
+        }
+        return fieldVar;
+    }
+
+    @Override
+    public boolean matchAllIndexExprs() {
+        return true;
+    }
+
+    @Override
+    public boolean matchPrefixIndexExprs() {
+        return false;
+    }
+
+    private ILogicalOperator createSecondaryToPrimaryPlan(OptimizableOperatorSubTree indexSubTree,
+            OptimizableOperatorSubTree probeSubTree, Index chosenIndex, IOptimizableFuncExpr optFuncExpr,
+            boolean retainInput, boolean requiresBroadcast, IOptimizationContext context) throws AlgebricksException {
+        Dataset dataset = indexSubTree.dataset;
+        ARecordType recordType = indexSubTree.recordType;
+        DataSourceScanOperator dataSourceScan = indexSubTree.dataSourceScan;
+
+        InvertedIndexJobGenParams jobGenParams = new InvertedIndexJobGenParams(chosenIndex.getIndexName(),
+                chosenIndex.getIndexType(), dataset.getDataverseName(), dataset.getDatasetName(), retainInput,
+                requiresBroadcast);
+        // Add function-specific args such as search modifier, and possibly a similarity threshold.
+        addFunctionSpecificArgs(optFuncExpr, jobGenParams);
+        // Add the type of search key from the optFuncExpr.
+        addSearchKeyType(optFuncExpr, indexSubTree, context, jobGenParams);
+
+        // Operator that feeds the secondary-index search.
+        AbstractLogicalOperator inputOp = null;
+        // Here we generate vars and funcs for assigning the secondary-index keys to be fed into the secondary-index search.
+        // List of variables for the assign.
+        ArrayList<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
+        // probeSubTree is null if we are dealing with a selection query, and non-null for join queries.
+        if (probeSubTree == null) {
+            // List of expressions for the assign.
+            ArrayList<Mutable<ILogicalExpression>> keyExprList = new ArrayList<Mutable<ILogicalExpression>>();
+            // Add key vars and exprs to argument list.
+            addKeyVarsAndExprs(optFuncExpr, keyVarList, keyExprList, context);
+            // Assign operator that sets the secondary-index search-key fields.
+            inputOp = new AssignOperator(keyVarList, keyExprList);
+            // Input to this assign is the EmptyTupleSource (which the dataSourceScan also must have had as input).
+            inputOp.getInputs().add(dataSourceScan.getInputs().get(0));
+            inputOp.setExecutionMode(dataSourceScan.getExecutionMode());
+        } else {
+            // We are optimizing a join. Add the input variable to the secondaryIndexFuncArgs.
+            LogicalVariable inputSearchVariable = getInputSearchVar(optFuncExpr, indexSubTree);
+            keyVarList.add(inputSearchVariable);
+            inputOp = (AbstractLogicalOperator) probeSubTree.root;
+        }
+        jobGenParams.setKeyVarList(keyVarList);
+        UnnestMapOperator secondaryIndexUnnestOp = AccessMethodUtils.createSecondaryIndexUnnestMap(dataset, recordType,
+                chosenIndex, inputOp, jobGenParams, context, true, retainInput);
+        // Generate the rest of the upstream plan which feeds the search results into the primary index.
+        UnnestMapOperator primaryIndexUnnestOp = AccessMethodUtils.createPrimaryIndexUnnestMap(dataSourceScan, dataset,
+                recordType, secondaryIndexUnnestOp, context, true, retainInput, false);
+        return primaryIndexUnnestOp;
+    }
+
+    /**
+     * Returns the variable which acts as the input search key to a secondary
+     * index that optimizes optFuncExpr by replacing rewriting indexSubTree
+     * (which is the original subtree that will be replaced by the index plan).
+     */
+    private LogicalVariable getInputSearchVar(IOptimizableFuncExpr optFuncExpr, OptimizableOperatorSubTree indexSubTree) {
+        if (optFuncExpr.getOperatorSubTree(0) == indexSubTree) {
+            // If the index is on a dataset in subtree 0, then subtree 1 will feed.
+            return optFuncExpr.getLogicalVar(1);
+        } else {
+            // If the index is on a dataset in subtree 1, then subtree 0 will feed.
+            return optFuncExpr.getLogicalVar(0);
+        }
+    }
+
+    @Override
+    public boolean applySelectPlanTransformation(Mutable<ILogicalOperator> selectRef,
+            OptimizableOperatorSubTree subTree, Index chosenIndex, AccessMethodAnalysisContext analysisCtx,
+            IOptimizationContext context) throws AlgebricksException {
+        IOptimizableFuncExpr optFuncExpr = AccessMethodUtils.chooseFirstOptFuncExpr(chosenIndex, analysisCtx);
+        ILogicalOperator indexPlanRootOp = createSecondaryToPrimaryPlan(subTree, null, chosenIndex, optFuncExpr, false,
+                false, context);
+        // Replace the datasource scan with the new plan rooted at primaryIndexUnnestMap.
+        subTree.dataSourceScanRef.setValue(indexPlanRootOp);
+        return true;
+    }
+
+    @Override
+    public boolean applyJoinPlanTransformation(Mutable<ILogicalOperator> joinRef,
+            OptimizableOperatorSubTree leftSubTree, OptimizableOperatorSubTree rightSubTree, Index chosenIndex,
+            AccessMethodAnalysisContext analysisCtx, IOptimizationContext context) throws AlgebricksException {
+        // Figure out if the index is applicable on the left or right side (if both, we arbitrarily prefer the left side).
+        Dataset dataset = analysisCtx.indexDatasetMap.get(chosenIndex);
+        // Determine probe and index subtrees based on chosen index.
+        OptimizableOperatorSubTree indexSubTree = null;
+        OptimizableOperatorSubTree probeSubTree = null;
+        if (dataset.getDatasetName().equals(leftSubTree.dataset.getDatasetName())) {
+            indexSubTree = leftSubTree;
+            probeSubTree = rightSubTree;
+        } else if (dataset.getDatasetName().equals(rightSubTree.dataset.getDatasetName())) {
+            indexSubTree = rightSubTree;
+            probeSubTree = leftSubTree;
+        }
+        IOptimizableFuncExpr optFuncExpr = AccessMethodUtils.chooseFirstOptFuncExpr(chosenIndex, analysisCtx);
+        InnerJoinOperator join = (InnerJoinOperator) joinRef.getValue();
+
+        // Remember the original probe subtree, and its primary-key variables,
+        // so we can later retrieve the missing attributes via an equi join.
+        List<LogicalVariable> originalSubTreePKs = new ArrayList<LogicalVariable>();
+        // Remember the primary-keys of the new probe subtree for the top-level equi join.
+        List<LogicalVariable> surrogateSubTreePKs = new ArrayList<LogicalVariable>();
+
+        // Copy probe subtree, replacing their variables with new ones. We will use the original variables
+        // to stitch together a top-level equi join.
+        Mutable<ILogicalOperator> originalProbeSubTreeRootRef = copyAndReinitProbeSubTree(probeSubTree, join
+                .getCondition().getValue(), optFuncExpr, originalSubTreePKs, surrogateSubTreePKs, context);
+
+        // Remember original live variables from the index sub tree.
+        List<LogicalVariable> indexSubTreeLiveVars = new ArrayList<LogicalVariable>();
+        VariableUtilities.getLiveVariables(indexSubTree.root, indexSubTreeLiveVars);
+
+        // Clone the original join condition because we may have to modify it (and we also need the original).        
+        ILogicalExpression joinCond = join.getCondition().getValue().cloneExpression();
+        // Create "panic" (non indexed) nested-loop join path if necessary.
+        Mutable<ILogicalOperator> panicJoinRef = null;
+        Map<LogicalVariable, LogicalVariable> panicVarMap = null;
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK) {
+            panicJoinRef = new MutableObject<ILogicalOperator>(joinRef.getValue());
+            panicVarMap = new HashMap<LogicalVariable, LogicalVariable>();
+            Mutable<ILogicalOperator> newProbeRootRef = createPanicNestedLoopJoinPlan(panicJoinRef, indexSubTree,
+                    probeSubTree, optFuncExpr, chosenIndex, panicVarMap, context);
+            probeSubTree.rootRef.setValue(newProbeRootRef.getValue());
+            probeSubTree.root = newProbeRootRef.getValue();
+        }
+        // Create regular indexed-nested loop join path.
+        ILogicalOperator indexPlanRootOp = createSecondaryToPrimaryPlan(indexSubTree, probeSubTree, chosenIndex,
+                optFuncExpr, true, true, context);
+        indexSubTree.dataSourceScanRef.setValue(indexPlanRootOp);
+
+        // Change join into a select with the same condition.
+        SelectOperator topSelect = new SelectOperator(new MutableObject<ILogicalExpression>(joinCond));
+        topSelect.getInputs().add(indexSubTree.rootRef);
+        topSelect.setExecutionMode(ExecutionMode.LOCAL);
+        context.computeAndSetTypeEnvironmentForOperator(topSelect);
+        ILogicalOperator topOp = topSelect;
+
+        // Hook up the indexed-nested loop join path with the "panic" (non indexed) nested-loop join path by putting a union all on top.
+        if (panicJoinRef != null) {
+            LogicalVariable inputSearchVar = getInputSearchVar(optFuncExpr, indexSubTree);
+            indexSubTreeLiveVars.addAll(originalSubTreePKs);
+            indexSubTreeLiveVars.add(inputSearchVar);
+            List<LogicalVariable> panicPlanLiveVars = new ArrayList<LogicalVariable>();
+            VariableUtilities.getLiveVariables(panicJoinRef.getValue(), panicPlanLiveVars);
+            // Create variable mapping for union all operator.
+            List<Triple<LogicalVariable, LogicalVariable, LogicalVariable>> varMap = new ArrayList<Triple<LogicalVariable, LogicalVariable, LogicalVariable>>();
+            for (int i = 0; i < indexSubTreeLiveVars.size(); i++) {
+                LogicalVariable indexSubTreeVar = indexSubTreeLiveVars.get(i);
+                LogicalVariable panicPlanVar = panicVarMap.get(indexSubTreeVar);
+                if (panicPlanVar == null) {
+                    panicPlanVar = indexSubTreeVar;
+                }
+                varMap.add(new Triple<LogicalVariable, LogicalVariable, LogicalVariable>(indexSubTreeVar, panicPlanVar,
+                        indexSubTreeVar));
+            }
+            UnionAllOperator unionAllOp = new UnionAllOperator(varMap);
+            unionAllOp.getInputs().add(new MutableObject<ILogicalOperator>(topOp));
+            unionAllOp.getInputs().add(panicJoinRef);
+            unionAllOp.setExecutionMode(ExecutionMode.PARTITIONED);
+            context.computeAndSetTypeEnvironmentForOperator(unionAllOp);
+            topOp = unionAllOp;
+        }
+
+        // Place a top-level equi-join on top to retrieve the missing variables from the original probe subtree.
+        // The inner (build) branch of the join is the subtree with the data scan, since the result of the similarity join could potentially be big.
+        // This choice may not always be the most efficient, but it seems more robust than the alternative.
+        Mutable<ILogicalExpression> eqJoinConditionRef = createPrimaryKeysEqJoinCondition(originalSubTreePKs,
+                surrogateSubTreePKs);
+        InnerJoinOperator topEqJoin = new InnerJoinOperator(eqJoinConditionRef, originalProbeSubTreeRootRef,
+                new MutableObject<ILogicalOperator>(topOp));
+        topEqJoin.setExecutionMode(ExecutionMode.PARTITIONED);
+        joinRef.setValue(topEqJoin);
+        context.computeAndSetTypeEnvironmentForOperator(topEqJoin);
+
+        return true;
+    }
+
+    /**
+     * Copies the probeSubTree (using new variables), and reinitializes the probeSubTree to it.
+     * Accordingly replaces the variables in the given joinCond, and the optFuncExpr.
+     * Returns a reference to the original plan root.
+     */
+    private Mutable<ILogicalOperator> copyAndReinitProbeSubTree(OptimizableOperatorSubTree probeSubTree,
+            ILogicalExpression joinCond, IOptimizableFuncExpr optFuncExpr, List<LogicalVariable> originalSubTreePKs,
+            List<LogicalVariable> surrogateSubTreePKs, IOptimizationContext context) throws AlgebricksException {
+
+        probeSubTree.getPrimaryKeyVars(originalSubTreePKs);
+
+        // Create two copies of the original probe subtree.
+        // The first copy, which becomes the new probe subtree, will retain the primary-key and secondary-search key variables,
+        // but have all other variables replaced with new ones.
+        // The second copy, which will become an input to the top-level equi-join to resolve the surrogates, 
+        // will have all primary-key and secondary-search keys replaced, but retains all other original variables.
+
+        // Variable replacement map for the first copy.
+        Map<LogicalVariable, LogicalVariable> newProbeSubTreeVarMap = new HashMap<LogicalVariable, LogicalVariable>();
+        // Variable replacement map for the second copy.
+        Map<LogicalVariable, LogicalVariable> joinInputSubTreeVarMap = new HashMap<LogicalVariable, LogicalVariable>();
+        // Init with all live vars.
+        List<LogicalVariable> liveVars = new ArrayList<LogicalVariable>();
+        VariableUtilities.getLiveVariables(probeSubTree.root, liveVars);
+        for (LogicalVariable var : liveVars) {
+            joinInputSubTreeVarMap.put(var, var);
+        }
+        // Fill variable replacement maps.
+        for (int i = 0; i < optFuncExpr.getNumLogicalVars(); i++) {
+            joinInputSubTreeVarMap.put(optFuncExpr.getLogicalVar(i), context.newVar());
+            newProbeSubTreeVarMap.put(optFuncExpr.getLogicalVar(i), optFuncExpr.getLogicalVar(i));
+        }
+        for (int i = 0; i < originalSubTreePKs.size(); i++) {
+            LogicalVariable newPKVar = context.newVar();
+            surrogateSubTreePKs.add(newPKVar);
+            joinInputSubTreeVarMap.put(originalSubTreePKs.get(i), newPKVar);
+            newProbeSubTreeVarMap.put(originalSubTreePKs.get(i), originalSubTreePKs.get(i));
+        }
+
+        // Create first copy.
+        Counter firstCounter = new Counter(context.getVarCounter());
+        LogicalOperatorDeepCopyVisitor firstDeepCopyVisitor = new LogicalOperatorDeepCopyVisitor(firstCounter,
+                newProbeSubTreeVarMap);
+        ILogicalOperator newProbeSubTree = firstDeepCopyVisitor.deepCopy(probeSubTree.root, null);
+        inferTypes(newProbeSubTree, context);
+        Mutable<ILogicalOperator> newProbeSubTreeRootRef = new MutableObject<ILogicalOperator>(newProbeSubTree);
+        context.setVarCounter(firstCounter.get());
+        // Create second copy.
+        Counter secondCounter = new Counter(context.getVarCounter());
+        LogicalOperatorDeepCopyVisitor secondDeepCopyVisitor = new LogicalOperatorDeepCopyVisitor(secondCounter,
+                joinInputSubTreeVarMap);
+        ILogicalOperator joinInputSubTree = secondDeepCopyVisitor.deepCopy(probeSubTree.root, null);
+        inferTypes(joinInputSubTree, context);
+        probeSubTree.rootRef.setValue(joinInputSubTree);
+        context.setVarCounter(secondCounter.get());
+
+        // Remember the original probe subtree reference so we can return it.
+        Mutable<ILogicalOperator> originalProbeSubTreeRootRef = probeSubTree.rootRef;
+
+        // Replace the original probe subtree with its copy.
+        Dataset origDataset = probeSubTree.dataset;
+        ARecordType origRecordType = probeSubTree.recordType;
+        probeSubTree.initFromSubTree(newProbeSubTreeRootRef);
+        probeSubTree.dataset = origDataset;
+        probeSubTree.recordType = origRecordType;
+
+        // Replace the variables in the join condition based on the mapping of variables
+        // in the new probe subtree.
+        Map<LogicalVariable, LogicalVariable> varMapping = firstDeepCopyVisitor.getVariableMapping();
+        for (Map.Entry<LogicalVariable, LogicalVariable> varMapEntry : varMapping.entrySet()) {
+            if (varMapEntry.getKey() != varMapEntry.getValue()) {
+                joinCond.substituteVar(varMapEntry.getKey(), varMapEntry.getValue());
+            }
+        }
+        return originalProbeSubTreeRootRef;
+    }
+
+    private Mutable<ILogicalExpression> createPrimaryKeysEqJoinCondition(List<LogicalVariable> originalSubTreePKs,
+            List<LogicalVariable> surrogateSubTreePKs) {
+        List<Mutable<ILogicalExpression>> eqExprs = new ArrayList<Mutable<ILogicalExpression>>();
+        int numPKVars = originalSubTreePKs.size();
+        for (int i = 0; i < numPKVars; i++) {
+            List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
+            args.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(surrogateSubTreePKs.get(i))));
+            args.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(originalSubTreePKs.get(i))));
+            ILogicalExpression eqFunc = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.EQ), args);
+            eqExprs.add(new MutableObject<ILogicalExpression>(eqFunc));
+        }
+        if (eqExprs.size() == 1) {
+            return eqExprs.get(0);
+        } else {
+            ILogicalExpression andFunc = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.AND), eqExprs);
+            return new MutableObject<ILogicalExpression>(andFunc);
+        }
+    }
+
+    private Mutable<ILogicalOperator> createPanicNestedLoopJoinPlan(Mutable<ILogicalOperator> joinRef,
+            OptimizableOperatorSubTree indexSubTree, OptimizableOperatorSubTree probeSubTree,
+            IOptimizableFuncExpr optFuncExpr, Index chosenIndex, Map<LogicalVariable, LogicalVariable> panicVarMap,
+            IOptimizationContext context) throws AlgebricksException {
+        LogicalVariable inputSearchVar = getInputSearchVar(optFuncExpr, indexSubTree);
+
+        // We split the plan into two "branches", and add selections on each side.
+        AbstractLogicalOperator replicateOp = new ReplicateOperator(2);
+        replicateOp.getInputs().add(new MutableObject<ILogicalOperator>(probeSubTree.root));
+        replicateOp.setExecutionMode(ExecutionMode.PARTITIONED);
+        context.computeAndSetTypeEnvironmentForOperator(replicateOp);
+
+        // Create select ops for removing tuples that are filterable and not filterable, respectively.
+        IVariableTypeEnvironment probeTypeEnv = context.getOutputTypeEnvironment(probeSubTree.root);
+        IAType inputSearchVarType = (IAType) probeTypeEnv.getVarType(inputSearchVar);
+        Mutable<ILogicalOperator> isFilterableSelectOpRef = new MutableObject<ILogicalOperator>();
+        Mutable<ILogicalOperator> isNotFilterableSelectOpRef = new MutableObject<ILogicalOperator>();
+        createIsFilterableSelectOps(replicateOp, inputSearchVar, inputSearchVarType, optFuncExpr, chosenIndex, context,
+                isFilterableSelectOpRef, isNotFilterableSelectOpRef);
+
+        List<LogicalVariable> originalLiveVars = new ArrayList<LogicalVariable>();
+        VariableUtilities.getLiveVariables(indexSubTree.root, originalLiveVars);
+
+        // Copy the scan subtree in indexSubTree.
+        Counter counter = new Counter(context.getVarCounter());
+        LogicalOperatorDeepCopyVisitor deepCopyVisitor = new LogicalOperatorDeepCopyVisitor(counter);
+        ILogicalOperator scanSubTree = deepCopyVisitor.deepCopy(indexSubTree.root, null);
+        context.setVarCounter(counter.get());
+        Map<LogicalVariable, LogicalVariable> copyVarMap = deepCopyVisitor.getVariableMapping();
+        panicVarMap.putAll(copyVarMap);
+
+        List<LogicalVariable> copyLiveVars = new ArrayList<LogicalVariable>();
+        VariableUtilities.getLiveVariables(scanSubTree, copyLiveVars);
+
+        // Replace the inputs of the given join op, and replace variables in its
+        // condition since we deep-copied one of the scanner subtrees which
+        // changed variables. 
+        InnerJoinOperator joinOp = (InnerJoinOperator) joinRef.getValue();
+        for (Map.Entry<LogicalVariable, LogicalVariable> entry : copyVarMap.entrySet()) {
+            joinOp.getCondition().getValue().substituteVar(entry.getKey(), entry.getValue());
+        }
+        joinOp.getInputs().clear();
+        joinOp.getInputs().add(new MutableObject<ILogicalOperator>(scanSubTree));
+        // Make sure that the build input (which may be materialized causing blocking) comes from 
+        // the split+select, otherwise the plan will have a deadlock.
+        joinOp.getInputs().add(isNotFilterableSelectOpRef);
+        context.computeAndSetTypeEnvironmentForOperator(joinOp);
+
+        // Return the new root of the probeSubTree.
+        return isFilterableSelectOpRef;
+    }
+
+    private void createIsFilterableSelectOps(ILogicalOperator inputOp, LogicalVariable inputSearchVar,
+            IAType inputSearchVarType, IOptimizableFuncExpr optFuncExpr, Index chosenIndex,
+            IOptimizationContext context, Mutable<ILogicalOperator> isFilterableSelectOpRef,
+            Mutable<ILogicalOperator> isNotFilterableSelectOpRef) throws AlgebricksException {
+        // Create select operator for removing tuples that are not filterable.
+        // First determine the proper filter function and args based on the type of the input search var.
+        ILogicalExpression isFilterableExpr = null;
+        switch (inputSearchVarType.getTypeTag()) {
+            case STRING: {
+                List<Mutable<ILogicalExpression>> isFilterableArgs = new ArrayList<Mutable<ILogicalExpression>>(4);
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
+                        inputSearchVar)));
+                // Since we are optimizing a join, the similarity threshold should be the only constant in the optimizable function expression.
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(optFuncExpr
+                        .getConstantVal(0))));
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils
+                        .createInt32Constant(chosenIndex.getGramLength())));
+                // TODO: Currently usePrePost is hardcoded to be true.
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils
+                        .createBooleanConstant(true)));
+                isFilterableExpr = new ScalarFunctionCallExpression(
+                        FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE),
+                        isFilterableArgs);
+                break;
+            }
+            case UNORDEREDLIST:
+            case ORDEREDLIST: {
+                List<Mutable<ILogicalExpression>> isFilterableArgs = new ArrayList<Mutable<ILogicalExpression>>(2);
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
+                        inputSearchVar)));
+                // Since we are optimizing a join, the similarity threshold should be the only constant in the optimizable function expression.
+                isFilterableArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(optFuncExpr
+                        .getConstantVal(0))));
+                isFilterableExpr = new ScalarFunctionCallExpression(
+                        FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.EDIT_DISTANCE_LIST_IS_FILTERABLE),
+                        isFilterableArgs);
+                break;
+            }
+            default: {
+            }
+        }
+        SelectOperator isFilterableSelectOp = new SelectOperator(
+                new MutableObject<ILogicalExpression>(isFilterableExpr));
+        isFilterableSelectOp.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+        isFilterableSelectOp.setExecutionMode(ExecutionMode.LOCAL);
+        context.computeAndSetTypeEnvironmentForOperator(isFilterableSelectOp);
+
+        // Select operator for removing tuples that are filterable.
+        List<Mutable<ILogicalExpression>> isNotFilterableArgs = new ArrayList<Mutable<ILogicalExpression>>();
+        isNotFilterableArgs.add(new MutableObject<ILogicalExpression>(isFilterableExpr));
+        ILogicalExpression isNotFilterableExpr = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.NOT), isNotFilterableArgs);
+        SelectOperator isNotFilterableSelectOp = new SelectOperator(new MutableObject<ILogicalExpression>(
+                isNotFilterableExpr));
+        isNotFilterableSelectOp.getInputs().add(new MutableObject<ILogicalOperator>(inputOp));
+        isNotFilterableSelectOp.setExecutionMode(ExecutionMode.LOCAL);
+        context.computeAndSetTypeEnvironmentForOperator(isNotFilterableSelectOp);
+
+        isFilterableSelectOpRef.setValue(isFilterableSelectOp);
+        isNotFilterableSelectOpRef.setValue(isNotFilterableSelectOp);
+    }
+
+    private void addSearchKeyType(IOptimizableFuncExpr optFuncExpr, OptimizableOperatorSubTree indexSubTree,
+            IOptimizationContext context, InvertedIndexJobGenParams jobGenParams) throws AlgebricksException {
+        // If we have two variables in the optFunxExpr, then we are optimizing a join.
+        IAType type = null;
+        ATypeTag typeTag = null;
+        if (optFuncExpr.getNumLogicalVars() == 2) {
+            // Find the type of the variable that is going to feed into the index search.
+            if (optFuncExpr.getOperatorSubTree(0) == indexSubTree) {
+                // If the index is on a dataset in subtree 0, then subtree 1 will feed.
+                type = (IAType) context.getOutputTypeEnvironment(optFuncExpr.getOperatorSubTree(1).root).getVarType(
+                        optFuncExpr.getLogicalVar(1));
+            } else {
+                // If the index is on a dataset in subtree 1, then subtree 0 will feed.
+                type = (IAType) context.getOutputTypeEnvironment(optFuncExpr.getOperatorSubTree(0).root).getVarType(
+                        optFuncExpr.getLogicalVar(0));
+            }
+            typeTag = type.getTypeTag();
+        } else {
+            // We are optimizing a selection query. Add the type of the search key constant.
+            AsterixConstantValue constVal = (AsterixConstantValue) optFuncExpr.getConstantVal(0);
+            IAObject obj = constVal.getObject();
+            type = obj.getType();
+            typeTag = type.getTypeTag();
+            if (typeTag != ATypeTag.ORDEREDLIST && typeTag != ATypeTag.STRING) {
+                throw new AlgebricksException("Only ordered lists and string types supported.");
+            }
+        }
+        jobGenParams.setSearchKeyType(typeTag);
+    }
+
+    private void addFunctionSpecificArgs(IOptimizableFuncExpr optFuncExpr, InvertedIndexJobGenParams jobGenParams) {
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.CONTAINS) {
+            jobGenParams.setSearchModifierType(SearchModifierType.CONJUNCTIVE);
+            jobGenParams.setSimilarityThreshold(new AsterixConstantValue(ANull.NULL));
+        }
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK) {
+            jobGenParams.setSearchModifierType(SearchModifierType.JACCARD);
+            // Add the similarity threshold which, by convention, is the last constant value.
+            jobGenParams.setSimilarityThreshold(optFuncExpr.getConstantVal(optFuncExpr.getNumConstantVals() - 1));
+        }
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK) {
+            jobGenParams.setSearchModifierType(SearchModifierType.EDIT_DISTANCE);
+            // Add the similarity threshold which, by convention, is the last constant value.
+            jobGenParams.setSimilarityThreshold(optFuncExpr.getConstantVal(optFuncExpr.getNumConstantVals() - 1));
+        }
+    }
+
+    private void addKeyVarsAndExprs(IOptimizableFuncExpr optFuncExpr, ArrayList<LogicalVariable> keyVarList,
+            ArrayList<Mutable<ILogicalExpression>> keyExprList, IOptimizationContext context)
+            throws AlgebricksException {
+        // For now we are assuming a single secondary index key.
+        // Add a variable and its expr to the lists which will be passed into an assign op.
+        LogicalVariable keyVar = context.newVar();
+        keyVarList.add(keyVar);
+        keyExprList.add(new MutableObject<ILogicalExpression>(new ConstantExpression(optFuncExpr.getConstantVal(0))));
+        return;
+    }
+
+    @Override
+    public boolean exprIsOptimizable(Index index, IOptimizableFuncExpr optFuncExpr) {
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK) {
+            // Must be for a join query.
+            if (optFuncExpr.getNumConstantVals() == 1) {
+                return true;
+            }
+            // Check for panic in selection query.
+            // TODO: Panic also depends on prePost which is currently hardcoded to be true.
+            AsterixConstantValue listOrStrConstVal = (AsterixConstantValue) optFuncExpr.getConstantVal(0);
+            AsterixConstantValue intConstVal = (AsterixConstantValue) optFuncExpr.getConstantVal(1);
+            IAObject listOrStrObj = listOrStrConstVal.getObject();
+            IAObject intObj = intConstVal.getObject();
+            AInt32 edThresh = (AInt32) intObj;
+            int mergeThreshold = 0;
+            // We can only optimize edit distance on strings using an ngram index.
+            if (listOrStrObj.getType().getTypeTag() == ATypeTag.STRING
+                    && (index.getIndexType() == IndexType.NGRAM_INVIX || index.getIndexType() == IndexType.FUZZY_NGRAM_INVIX)) {
+                AString astr = (AString) listOrStrObj;
+                // Compute merge threshold.
+                mergeThreshold = (astr.getStringValue().length() + index.getGramLength() - 1)
+                        - edThresh.getIntegerValue() * index.getGramLength();
+            }
+            // We can only optimize edit distance on lists using a word index.
+            if ((listOrStrObj.getType().getTypeTag() == ATypeTag.ORDEREDLIST || listOrStrObj.getType().getTypeTag() == ATypeTag.UNORDEREDLIST)
+                    && (index.getIndexType() == IndexType.WORD_INVIX || index.getIndexType() == IndexType.FUZZY_WORD_INVIX)) {
+                IACollection alist = (IACollection) listOrStrObj;
+                // Compute merge threshold.
+                mergeThreshold = alist.size() - edThresh.getIntegerValue();
+            }
+            if (mergeThreshold <= 0) {
+                // We cannot use index to optimize expr.
+                return false;
+            }
+            return true;
+        }
+        // TODO: We need more checking: gram length, prePost, etc.
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK) {
+            // Check the tokenization function of the non-constant func arg to see if it fits the concrete index type.
+            ILogicalExpression arg1 = optFuncExpr.getFuncExpr().getArguments().get(0).getValue();
+            ILogicalExpression arg2 = optFuncExpr.getFuncExpr().getArguments().get(1).getValue();
+            ILogicalExpression nonConstArg = null;
+            if (arg1.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
+                nonConstArg = arg1;
+            } else {
+                nonConstArg = arg2;
+            }
+            if (nonConstArg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                AbstractFunctionCallExpression nonConstfuncExpr = (AbstractFunctionCallExpression) nonConstArg;
+                // We can use this index if the tokenization function matches the index type.
+                if (nonConstfuncExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.WORD_TOKENS
+                        && (index.getIndexType() == IndexType.WORD_INVIX || index.getIndexType() == IndexType.FUZZY_WORD_INVIX)) {
+                    return true;
+                }
+                if (nonConstfuncExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.GRAM_TOKENS
+                        && (index.getIndexType() == IndexType.NGRAM_INVIX || index.getIndexType() == IndexType.FUZZY_NGRAM_INVIX)) {
+                    return true;
+                }
+            }
+            // The non-constant arg is not a function call. Perhaps a variable?
+            // We must have already verified during our analysis of the select condition, that this variable
+            // refers to a list, or to a tokenization function.
+            if (nonConstArg.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
+                return true;
+            }
+        }
+        // We can only optimize contains with ngram indexes.
+        if (optFuncExpr.getFuncExpr().getFunctionIdentifier() == AsterixBuiltinFunctions.CONTAINS
+                && (index.getIndexType() == IndexType.NGRAM_INVIX || index.getIndexType() == IndexType.FUZZY_NGRAM_INVIX)) {
+            // Check that the constant search string has at least gramLength characters.
+            AsterixConstantValue strConstVal = (AsterixConstantValue) optFuncExpr.getConstantVal(0);
+            IAObject strObj = strConstVal.getObject();
+            if (strObj.getType().getTypeTag() == ATypeTag.STRING) {
+                AString astr = (AString) strObj;
+                if (astr.getStringValue().length() >= index.getGramLength()) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    public static IBinaryTokenizerFactory getBinaryTokenizerFactory(SearchModifierType searchModifierType,
+            ATypeTag searchKeyType, Index index) throws AlgebricksException {
+        switch (index.getIndexType()) {
+            case WORD_INVIX:
+            case FUZZY_WORD_INVIX: {
+                return AqlBinaryTokenizerFactoryProvider.INSTANCE.getWordTokenizerFactory(searchKeyType, false);
+            }
+            case NGRAM_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                // Make sure not to use pre- and postfixing for conjunctive searches.
+                boolean prePost = (searchModifierType == SearchModifierType.CONJUNCTIVE) ? false : true;
+                return AqlBinaryTokenizerFactoryProvider.INSTANCE.getNGramTokenizerFactory(searchKeyType,
+                        index.getGramLength(), prePost, false);
+            }
+            default: {
+                throw new AlgebricksException("Tokenizer not applicable to index kind '" + index.getIndexType() + "'.");
+            }
+        }
+    }
+
+    public static IInvertedIndexSearchModifierFactory getSearchModifierFactory(SearchModifierType searchModifierType,
+            IAObject simThresh, Index index) throws AlgebricksException {
+        switch (searchModifierType) {
+            case CONJUNCTIVE: {
+                return new ConjunctiveSearchModifierFactory();
+            }
+            case JACCARD: {
+                float jaccThresh = ((AFloat) simThresh).getFloatValue();
+                return new JaccardSearchModifierFactory(jaccThresh);
+            }
+            case EDIT_DISTANCE: {
+                int edThresh = ((AInt32) simThresh).getIntegerValue();
+                switch (index.getIndexType()) {
+                    case NGRAM_INVIX:
+                    case FUZZY_NGRAM_INVIX: {
+                        // Edit distance on strings, filtered with overlapping grams.
+                        return new EditDistanceSearchModifierFactory(index.getGramLength(), edThresh);
+                    }
+                    case WORD_INVIX:
+                    case FUZZY_WORD_INVIX: {
+                        // Edit distance on two lists. The list-elements are non-overlapping.
+                        return new ListEditDistanceSearchModifierFactory(edThresh);
+                    }
+                    default: {
+                        throw new AlgebricksException("Incompatible search modifier '" + searchModifierType
+                                + "' for index type '" + index.getIndexType() + "'");
+                    }
+                }
+            }
+            default: {
+                throw new AlgebricksException("Unknown search modifier type '" + searchModifierType + "'.");
+            }
+        }
+    }
+
+    private void inferTypes(ILogicalOperator op, IOptimizationContext context) throws AlgebricksException {
+        for (Mutable<ILogicalOperator> childOpRef : op.getInputs()) {
+            inferTypes(childOpRef.getValue(), context);
+        }
+        context.computeAndSetTypeEnvironmentForOperator(op);
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexJobGenParams.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexJobGenParams.java
new file mode 100644
index 0000000..65473c7
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/InvertedIndexJobGenParams.java
@@ -0,0 +1,111 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexAccessMethod.SearchModifierType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+
+/**
+ * Helper class for reading and writing job-gen parameters for RTree access methods to
+ * and from a list of function arguments, typically of an unnest-map.
+ */
+public class InvertedIndexJobGenParams extends AccessMethodJobGenParams {
+
+    protected SearchModifierType searchModifierType;
+    protected IAlgebricksConstantValue similarityThreshold;
+    protected ATypeTag searchKeyType;
+    protected List<LogicalVariable> keyVarList;
+    protected List<LogicalVariable> nonKeyVarList;
+
+    public InvertedIndexJobGenParams() {
+    }
+
+    public InvertedIndexJobGenParams(String indexName, IndexType indexType, String dataverseName, String datasetName,
+            boolean retainInput, boolean requiresBroadcast) {
+        super(indexName, indexType, dataverseName, datasetName, retainInput, requiresBroadcast);
+    }
+
+    public void setSearchModifierType(SearchModifierType searchModifierType) {
+        this.searchModifierType = searchModifierType;
+    }
+
+    public void setSimilarityThreshold(IAlgebricksConstantValue similarityThreshold) {
+        this.similarityThreshold = similarityThreshold;
+    }
+
+    public void setSearchKeyType(ATypeTag searchKeyType) {
+        this.searchKeyType = searchKeyType;
+    }
+
+    public void setKeyVarList(List<LogicalVariable> keyVarList) {
+        this.keyVarList = keyVarList;
+    }
+
+    public void writeToFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.writeToFuncArgs(funcArgs);
+        // Write search modifier type.
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createInt32Constant(searchModifierType
+                .ordinal())));
+        // Write similarity threshold.
+        funcArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(similarityThreshold)));
+        // Write search key type.
+        funcArgs.add(new MutableObject<ILogicalExpression>(AccessMethodUtils.createInt32Constant(searchKeyType
+                .ordinal())));
+        // Write key var list.
+        writeVarList(keyVarList, funcArgs);
+        // Write non-key var list.
+        if (nonKeyVarList != null) {
+            writeVarList(nonKeyVarList, funcArgs);
+        }
+    }
+
+    public void readFromFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.readFromFuncArgs(funcArgs);
+        int index = super.getNumParams();
+        // Read search modifier type.
+        int searchModifierOrdinal = AccessMethodUtils.getInt32Constant(funcArgs.get(index));
+        searchModifierType = SearchModifierType.values()[searchModifierOrdinal];
+        // Read similarity threshold. Concrete type depends on search modifier.
+        similarityThreshold = ((AsterixConstantValue) ((ConstantExpression) funcArgs.get(index + 1).getValue())
+                .getValue());
+        // Read type of search key.
+        int typeTagOrdinal = AccessMethodUtils.getInt32Constant(funcArgs.get(index + 2));
+        searchKeyType = ATypeTag.values()[typeTagOrdinal];
+        // Read key var list.
+        keyVarList = new ArrayList<LogicalVariable>();
+        readVarList(funcArgs, index + 3, keyVarList);
+        // TODO: We could possibly simplify things if we did read the non-key var list here.
+        // We don't need to read the non-key var list.
+        nonKeyVarList = null;
+    }
+
+    public SearchModifierType getSearchModifierType() {
+        return searchModifierType;
+    }
+
+    public IAlgebricksConstantValue getSimilarityThreshold() {
+        return similarityThreshold;
+    }
+
+    public ATypeTag getSearchKeyType() {
+        return searchKeyType;
+    }
+
+    public List<LogicalVariable> getKeyVarList() {
+        return keyVarList;
+    }
+
+    public List<LogicalVariable> getNonKeyVarList() {
+        return nonKeyVarList;
+    }
+}
\ No newline at end of file
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java
new file mode 100644
index 0000000..dbbe6d9
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java
@@ -0,0 +1,111 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
+
+/**
+ * General-purpose implementation of IOptimizableFuncExpr that supports any
+ * number of constant args, variable args and field names.
+ */
+public class OptimizableFuncExpr implements IOptimizableFuncExpr {
+	protected final AbstractFunctionCallExpression funcExpr;
+    protected final LogicalVariable[] logicalVars;
+    protected final String[] fieldNames;
+    protected final OptimizableOperatorSubTree[] subTrees;
+    protected final IAlgebricksConstantValue[] constantVals;
+    
+    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable[] logicalVars, IAlgebricksConstantValue[] constantVals) {
+    	this.funcExpr = funcExpr;
+    	this.logicalVars = logicalVars;
+    	this.constantVals = constantVals;
+    	this.fieldNames = new String[logicalVars.length];
+    	this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
+    }
+    
+    // Special, more convenient c'tor for simple binary functions.
+    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable logicalVar, IAlgebricksConstantValue constantVal) {
+    	this.funcExpr = funcExpr;
+    	this.logicalVars = new LogicalVariable[] { logicalVar };
+    	this.constantVals = new IAlgebricksConstantValue[] { constantVal };
+    	this.fieldNames = new String[logicalVars.length];
+    	this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
+    }
+    
+	@Override
+	public AbstractFunctionCallExpression getFuncExpr() {
+		return funcExpr;
+	}
+	
+	@Override
+	public int getNumLogicalVars() {
+		return logicalVars.length;
+	}
+	
+	@Override
+	public int getNumConstantVals() {
+		return constantVals.length;
+	}
+	
+	@Override	
+	public LogicalVariable getLogicalVar(int index) {
+		return logicalVars[index];
+	}
+	
+	@Override
+	public void setFieldName(int index, String fieldName) {
+		fieldNames[index] = fieldName;
+	}
+	
+	@Override
+	public String getFieldName(int index) {
+		return fieldNames[index];
+	}
+	
+	@Override
+	public IAlgebricksConstantValue getConstantVal(int index) {
+		return constantVals[index];
+	}
+
+    @Override
+    public int findLogicalVar(LogicalVariable var) {
+        for (int i = 0; i < logicalVars.length; i++) {
+            if (var == logicalVars[i]) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    @Override
+    public int findFieldName(String fieldName) {
+        for (int i = 0; i < fieldNames.length; i++) {
+            if (fieldName.equals(fieldNames[i])) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    @Override
+    public void setOptimizableSubTree(int index, OptimizableOperatorSubTree subTree) {
+        subTrees[index] = subTree;
+    }
+
+    @Override
+    public OptimizableOperatorSubTree getOperatorSubTree(int index) {
+        return subTrees[index];
+    }
+
+    @Override
+    public void substituteVar(LogicalVariable original, LogicalVariable substitution) {
+        if (logicalVars != null) {
+            for (int i = 0; i < logicalVars.length; i++) {
+                if (logicalVars[i] == original) {
+                    logicalVars[i] = substitution;
+                    break;
+                }
+            }
+        }
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableOperatorSubTree.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableOperatorSubTree.java
new file mode 100644
index 0000000..fd1b89d
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableOperatorSubTree.java
@@ -0,0 +1,136 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+
+/**
+ * Operator subtree that matches the following patterns, and provides convenient access to its nodes:
+ * (select)? <-- (assign)+ <-- (datasource scan)
+ * and
+ * (select)? <-- (datasource scan)
+ */
+public class OptimizableOperatorSubTree {
+    public ILogicalOperator root = null;
+    public Mutable<ILogicalOperator> rootRef = null;
+    public final List<Mutable<ILogicalOperator>> assignRefs = new ArrayList<Mutable<ILogicalOperator>>();
+    public final List<AssignOperator> assigns = new ArrayList<AssignOperator>();
+    public Mutable<ILogicalOperator> dataSourceScanRef = null;
+    public DataSourceScanOperator dataSourceScan = null;
+    // Dataset and type metadata. Set in setDatasetAndTypeMetadata().
+    public Dataset dataset = null;
+    public ARecordType recordType = null;
+
+    public boolean initFromSubTree(Mutable<ILogicalOperator> subTreeOpRef) {
+        reset();
+        rootRef = subTreeOpRef;
+        root = subTreeOpRef.getValue();
+        // Examine the op's children to match the expected patterns.
+        AbstractLogicalOperator subTreeOp = (AbstractLogicalOperator) subTreeOpRef.getValue();
+        // Skip select operator.
+        if (subTreeOp.getOperatorTag() == LogicalOperatorTag.SELECT) {
+            subTreeOpRef = subTreeOp.getInputs().get(0);
+            subTreeOp = (AbstractLogicalOperator) subTreeOpRef.getValue();
+        }
+        // Check primary-index pattern.
+        if (subTreeOp.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
+            // Pattern may still match if we are looking for primary index matches as well.
+            if (subTreeOp.getOperatorTag() == LogicalOperatorTag.DATASOURCESCAN) {
+                dataSourceScanRef = subTreeOpRef;
+                dataSourceScan = (DataSourceScanOperator) subTreeOp;
+                return true;
+            }
+            return false;
+        }
+        // Match (assign)+.
+        do {
+            assignRefs.add(subTreeOpRef);
+            assigns.add((AssignOperator) subTreeOp);
+            subTreeOpRef = subTreeOp.getInputs().get(0);
+            subTreeOp = (AbstractLogicalOperator) subTreeOpRef.getValue();
+        } while (subTreeOp.getOperatorTag() == LogicalOperatorTag.ASSIGN);
+        // Set to last valid assigns.
+        subTreeOpRef = assignRefs.get(assignRefs.size() - 1);
+        subTreeOp = assigns.get(assigns.size() - 1);
+        // Match datasource scan.
+        Mutable<ILogicalOperator> opRef3 = subTreeOp.getInputs().get(0);
+        AbstractLogicalOperator op3 = (AbstractLogicalOperator) opRef3.getValue();
+        if (op3.getOperatorTag() != LogicalOperatorTag.DATASOURCESCAN) {
+            return false;
+        }
+        dataSourceScanRef = opRef3;
+        dataSourceScan = (DataSourceScanOperator) op3;
+        return true;
+    }
+
+    /**
+     * Find the dataset corresponding to the datasource scan in the metadata.
+     * Also sets recordType to be the type of that dataset.
+     */
+    public boolean setDatasetAndTypeMetadata(AqlMetadataProvider metadataProvider) throws AlgebricksException {
+        if (dataSourceScan == null) {
+            return false;
+        }
+        // Find the dataset corresponding to the datasource scan in the metadata.
+        Pair<String, String> datasetInfo = AnalysisUtil.getDatasetInfo(dataSourceScan);
+        String dataverseName = datasetInfo.first;
+        String datasetName = datasetInfo.second;
+        if (dataverseName == null || datasetName == null) {
+            return false;
+        }
+        dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("No metadata for dataset " + datasetName);
+        }
+        if (dataset.getDatasetType() != DatasetType.INTERNAL && dataset.getDatasetType() != DatasetType.FEED) {
+            return false;
+        }
+        // Get the record type for that dataset.
+        IAType itemType = metadataProvider.findType(dataverseName, dataset.getItemTypeName());
+        if (itemType.getTypeTag() != ATypeTag.RECORD) {
+            return false;
+        }
+        recordType = (ARecordType) itemType;
+        return true;
+    }
+
+    public boolean hasDataSourceScan() {
+        return dataSourceScan != null;
+    }
+    
+    public void reset() {
+        root = null;
+        rootRef = null;
+        assignRefs.clear();
+        assigns.clear();
+        dataSourceScanRef = null;
+        dataSourceScan = null;
+        dataset = null;
+        recordType = null;
+    }
+    
+    public void getPrimaryKeyVars(List<LogicalVariable> target) {
+        int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            target.add(dataSourceScan.getVariables().get(i));
+        }
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeAccessMethod.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeAccessMethod.java
new file mode 100644
index 0000000..45cce9c
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeAccessMethod.java
@@ -0,0 +1,196 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.aql.util.FunctionUtils;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractBinaryJoinOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestMapOperator;
+
+/**
+ * Class for helping rewrite rules to choose and apply RTree indexes.
+ */
+public class RTreeAccessMethod implements IAccessMethod {
+
+    private static List<FunctionIdentifier> funcIdents = new ArrayList<FunctionIdentifier>();
+    static {
+        funcIdents.add(AsterixBuiltinFunctions.SPATIAL_INTERSECT);
+    }
+
+    public static RTreeAccessMethod INSTANCE = new RTreeAccessMethod();
+
+    @Override
+    public List<FunctionIdentifier> getOptimizableFunctions() {
+        return funcIdents;
+    }
+
+    @Override
+    public boolean analyzeFuncExprArgs(AbstractFunctionCallExpression funcExpr, List<AssignOperator> assigns,
+            AccessMethodAnalysisContext analysisCtx) {
+        boolean matches = AccessMethodUtils.analyzeFuncExprArgsForOneConstAndVar(funcExpr, analysisCtx);
+        if (!matches) {
+            matches = AccessMethodUtils.analyzeFuncExprArgsForTwoVars(funcExpr, analysisCtx);
+        }
+        return matches;
+    }
+
+    @Override
+    public boolean matchAllIndexExprs() {
+        return true;
+    }
+
+    @Override
+    public boolean matchPrefixIndexExprs() {
+        return false;
+    }
+
+    @Override
+    public boolean applySelectPlanTransformation(Mutable<ILogicalOperator> selectRef,
+            OptimizableOperatorSubTree subTree, Index chosenIndex, AccessMethodAnalysisContext analysisCtx,
+            IOptimizationContext context) throws AlgebricksException {
+        // TODO: We can probably do something smarter here based on selectivity or MBR area.
+        IOptimizableFuncExpr optFuncExpr = AccessMethodUtils.chooseFirstOptFuncExpr(chosenIndex, analysisCtx);
+        ILogicalOperator primaryIndexUnnestOp = createSecondaryToPrimaryPlan(subTree, null, chosenIndex, optFuncExpr,
+                false, false, context);
+        if (primaryIndexUnnestOp == null) {
+            return false;
+        }
+        // Replace the datasource scan with the new plan rooted at primaryIndexUnnestMap.
+        subTree.dataSourceScanRef.setValue(primaryIndexUnnestOp);
+        return true;
+    }
+
+    @Override
+    public boolean applyJoinPlanTransformation(Mutable<ILogicalOperator> joinRef,
+            OptimizableOperatorSubTree leftSubTree, OptimizableOperatorSubTree rightSubTree, Index chosenIndex,
+            AccessMethodAnalysisContext analysisCtx, IOptimizationContext context) throws AlgebricksException {
+        // Determine if the index is applicable on the left or right side (if both, we arbitrarily prefer the left side).
+        Dataset dataset = analysisCtx.indexDatasetMap.get(chosenIndex);
+        // Determine probe and index subtrees based on chosen index.
+        OptimizableOperatorSubTree indexSubTree = null;
+        OptimizableOperatorSubTree probeSubTree = null;
+        if (leftSubTree.dataset != null && dataset.getDatasetName().equals(leftSubTree.dataset.getDatasetName())) {
+            indexSubTree = leftSubTree;
+            probeSubTree = rightSubTree;
+        } else if (rightSubTree.dataset != null
+                && dataset.getDatasetName().equals(rightSubTree.dataset.getDatasetName())) {
+            indexSubTree = rightSubTree;
+            probeSubTree = leftSubTree;
+        }
+        // TODO: We can probably do something smarter here based on selectivity or MBR area.
+        IOptimizableFuncExpr optFuncExpr = AccessMethodUtils.chooseFirstOptFuncExpr(chosenIndex, analysisCtx);
+        ILogicalOperator primaryIndexUnnestOp = createSecondaryToPrimaryPlan(indexSubTree, probeSubTree, chosenIndex,
+                optFuncExpr, true, true, context);
+        if (primaryIndexUnnestOp == null) {
+            return false;
+        }
+        indexSubTree.dataSourceScanRef.setValue(primaryIndexUnnestOp);
+        // Change join into a select with the same condition.
+        AbstractBinaryJoinOperator joinOp = (AbstractBinaryJoinOperator) joinRef.getValue();
+        SelectOperator topSelect = new SelectOperator(joinOp.getCondition());
+        topSelect.getInputs().add(indexSubTree.rootRef);
+        topSelect.setExecutionMode(ExecutionMode.LOCAL);
+        context.computeAndSetTypeEnvironmentForOperator(topSelect);
+        // Replace the original join with the new subtree rooted at the select op.
+        joinRef.setValue(topSelect);
+        return true;
+    }
+
+    private ILogicalOperator createSecondaryToPrimaryPlan(OptimizableOperatorSubTree indexSubTree,
+            OptimizableOperatorSubTree probeSubTree, Index chosenIndex, IOptimizableFuncExpr optFuncExpr,
+            boolean retainInput, boolean requiresBroadcast, IOptimizationContext context) throws AlgebricksException {
+        Dataset dataset = indexSubTree.dataset;
+        ARecordType recordType = indexSubTree.recordType;
+
+        // Get the number of dimensions corresponding to the field indexed by chosenIndex.
+        Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(optFuncExpr.getFieldName(0), recordType);
+        IAType spatialType = keyPairType.first;
+        int numDimensions = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
+        int numSecondaryKeys = numDimensions * 2;
+
+        DataSourceScanOperator dataSourceScan = indexSubTree.dataSourceScan;
+        RTreeJobGenParams jobGenParams = new RTreeJobGenParams(chosenIndex.getIndexName(), IndexType.RTREE,
+                dataset.getDataverseName(), dataset.getDatasetName(), retainInput, requiresBroadcast);
+        // A spatial object is serialized in the constant of the func expr we are optimizing.
+        // The R-Tree expects as input an MBR represented with 1 field per dimension. 
+        // Here we generate vars and funcs for extracting MBR fields from the constant into fields of a tuple (as the R-Tree expects them).
+        // List of variables for the assign.
+        ArrayList<LogicalVariable> keyVarList = new ArrayList<LogicalVariable>();
+        // List of expressions for the assign.
+        ArrayList<Mutable<ILogicalExpression>> keyExprList = new ArrayList<Mutable<ILogicalExpression>>();
+        ILogicalExpression searchKeyExpr = AccessMethodUtils.createSearchKeyExpr(optFuncExpr, indexSubTree,
+                probeSubTree);
+        for (int i = 0; i < numSecondaryKeys; i++) {
+            // The create MBR function "extracts" one field of an MBR around the given spatial object.
+            AbstractFunctionCallExpression createMBR = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CREATE_MBR));
+            // Spatial object is the constant from the func expr we are optimizing.
+            createMBR.getArguments().add(new MutableObject<ILogicalExpression>(searchKeyExpr));
+            // The number of dimensions.
+            createMBR.getArguments().add(
+                    new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(
+                            numDimensions)))));
+            // Which part of the MBR to extract.
+            createMBR.getArguments().add(
+                    new MutableObject<ILogicalExpression>(new ConstantExpression(
+                            new AsterixConstantValue(new AInt32(i)))));
+            // Add a variable and its expr to the lists which will be passed into an assign op.
+            LogicalVariable keyVar = context.newVar();
+            keyVarList.add(keyVar);
+            keyExprList.add(new MutableObject<ILogicalExpression>(createMBR));
+        }
+        jobGenParams.setKeyVarList(keyVarList);
+
+        // Assign operator that "extracts" the MBR fields from the func-expr constant into a tuple.
+        AssignOperator assignSearchKeys = new AssignOperator(keyVarList, keyExprList);
+        if (probeSubTree == null) {
+            // We are optimizing a selection query.
+            // Input to this assign is the EmptyTupleSource (which the dataSourceScan also must have had as input).
+            assignSearchKeys.getInputs().add(dataSourceScan.getInputs().get(0));
+            assignSearchKeys.setExecutionMode(dataSourceScan.getExecutionMode());
+        } else {
+            // We are optimizing a join, place the assign op top of the probe subtree.
+            assignSearchKeys.getInputs().add(probeSubTree.rootRef);
+        }
+
+        UnnestMapOperator secondaryIndexUnnestOp = AccessMethodUtils.createSecondaryIndexUnnestMap(dataset, recordType,
+                chosenIndex, assignSearchKeys, jobGenParams, context, false, retainInput);
+        // Generate the rest of the upstream plan which feeds the search results into the primary index.
+        UnnestMapOperator primaryIndexUnnestOp = AccessMethodUtils.createPrimaryIndexUnnestMap(dataSourceScan, dataset,
+                recordType, secondaryIndexUnnestOp, context, true, retainInput, false);
+
+        return primaryIndexUnnestOp;
+    }
+
+    @Override
+    public boolean exprIsOptimizable(Index index, IOptimizableFuncExpr optFuncExpr) {
+        // No additional analysis required.
+        return true;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeJobGenParams.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeJobGenParams.java
new file mode 100644
index 0000000..846bcb6
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/RTreeJobGenParams.java
@@ -0,0 +1,47 @@
+package edu.uci.ics.asterix.optimizer.rules.am;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
+
+/**
+ * Helper class for reading and writing job-gen parameters for RTree access methods to
+ * and from a list of function arguments, typically of an unnest-map.
+ */
+public class RTreeJobGenParams extends AccessMethodJobGenParams {
+
+    protected List<LogicalVariable> keyVarList;
+
+    public RTreeJobGenParams() {
+    }
+
+    public RTreeJobGenParams(String indexName, IndexType indexType, String dataverseName, String datasetName,
+            boolean retainInput, boolean requiresBroadcast) {
+        super(indexName, indexType, dataverseName, datasetName, retainInput, requiresBroadcast);
+    }
+
+    public void writeToFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.writeToFuncArgs(funcArgs);
+        writeVarList(keyVarList, funcArgs);
+    }
+
+    public void readFromFuncArgs(List<Mutable<ILogicalExpression>> funcArgs) {
+        super.readFromFuncArgs(funcArgs);
+        int index = super.getNumParams();
+        keyVarList = new ArrayList<LogicalVariable>();
+        readVarList(funcArgs, index, keyVarList);
+    }
+
+    public void setKeyVarList(List<LogicalVariable> keyVarList) {
+        this.keyVarList = keyVarList;
+    }
+
+    public List<LogicalVariable> getKeyVarList() {
+        return keyVarList;
+    }
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
new file mode 100644
index 0000000..3ba3e96
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
@@ -0,0 +1,430 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.optimizer.rules.typecast;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.apache.commons.lang3.mutable.Mutable;
+import org.apache.commons.lang3.mutable.MutableObject;
+
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+
+/**
+ * This class is utility to do type cast.
+ * It offers two public methods:
+ * 1. public static boolean rewriteListExpr(AbstractFunctionCallExpression funcExpr, IAType reqType, IAType inputType,
+ * IVariableTypeEnvironment env) throws AlgebricksException, which only enforces the list type recursively.
+ * 2. public static boolean rewriteFuncExpr(AbstractFunctionCallExpression funcExpr, IAType reqType, IAType inputType,
+ * IVariableTypeEnvironment env) throws AlgebricksException, which enforces the list type and the record type recursively.
+ * 
+ * @author yingyib
+ */
+public class StaticTypeCastUtil {
+
+    /**
+     * This method is only called when funcExpr contains list constructor function calls.
+     * The List constructor is very special because a nested list is of type List<ANY>.
+     * However, the bottom-up type inference (InferTypeRule in algebricks) did not infer that so we need this method to enforce the type.
+     * We do not want to break the generality of algebricks so this method is called in an ASTERIX rule: @ IntroduceEnforcedListTypeRule} .
+     * 
+     * @param funcExpr
+     *            record constructor function expression
+     * @param requiredListType
+     *            required record type
+     * @param inputRecordType
+     * @param env
+     *            type environment
+     * @throws AlgebricksException
+     */
+    public static boolean rewriteListExpr(AbstractFunctionCallExpression funcExpr, IAType reqType, IAType inputType,
+            IVariableTypeEnvironment env) throws AlgebricksException {
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR) {
+            if (reqType.equals(BuiltinType.ANY)) {
+                reqType = DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE;
+            }
+            return rewriteListFuncExpr(funcExpr, (AbstractCollectionType) reqType, (AbstractCollectionType) inputType,
+                    env);
+        } else if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR) {
+            if (reqType.equals(BuiltinType.ANY)) {
+                reqType = DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE;
+            }
+            return rewriteListFuncExpr(funcExpr, (AbstractCollectionType) reqType, (AbstractCollectionType) inputType,
+                    env);
+        } else {
+            List<Mutable<ILogicalExpression>> args = funcExpr.getArguments();
+            boolean changed = false;
+            for (Mutable<ILogicalExpression> arg : args) {
+                ILogicalExpression argExpr = arg.getValue();
+                if (argExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                    AbstractFunctionCallExpression argFuncExpr = (AbstractFunctionCallExpression) argExpr;
+                    IAType exprType = (IAType) env.getType(argFuncExpr);
+                    changed = changed || rewriteListExpr(argFuncExpr, exprType, exprType, env);
+                }
+            }
+            return changed;
+        }
+    }
+
+    /**
+     * This method is to recursively enforce required types, for the list type and the record type.
+     * The List constructor is very special because
+     * 1. a nested list in a list is of type List<ANY>;
+     * 2. a nested record in a list is of type Open_Record{}.
+     * The open record constructor is very special because
+     * 1. a nested list in the open part is of type List<ANY>;
+     * 2. a nested record in the open part is of type Open_Record{}.
+     * However, the bottom-up type inference (InferTypeRule in algebricks) did not infer that so we need this method to enforce the type.
+     * We do not want to break the generality of algebricks so this method is called in an ASTERIX rule: @ IntroduceStaticTypeCastRule} .
+     * 
+     * @param funcExpr
+     *            the function expression whose type needs to be top-down enforced
+     * @param reqType
+     *            the required type inferred from parent operators/expressions
+     * @param inputType
+     *            the current inferred
+     * @param env
+     *            the type environment
+     * @return true if the type is casted; otherwise, false.
+     * @throws AlgebricksException
+     */
+    public static boolean rewriteFuncExpr(AbstractFunctionCallExpression funcExpr, IAType reqType, IAType inputType,
+            IVariableTypeEnvironment env) throws AlgebricksException {
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR) {
+            if (reqType.equals(BuiltinType.ANY)) {
+                reqType = DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE;
+            }
+            return rewriteListFuncExpr(funcExpr, (AbstractCollectionType) reqType, (AbstractCollectionType) inputType,
+                    env);
+        } else if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR) {
+            if (reqType.equals(BuiltinType.ANY)) {
+                reqType = DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE;
+            }
+            return rewriteListFuncExpr(funcExpr, (AbstractCollectionType) reqType, (AbstractCollectionType) inputType,
+                    env);
+        } else if (inputType.getTypeTag().equals(ATypeTag.RECORD)) {
+            if (reqType.equals(BuiltinType.ANY)) {
+                reqType = DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE;
+            }
+            return rewriteRecordFuncExpr(funcExpr, (ARecordType) reqType, (ARecordType) inputType, env);
+        } else {
+            List<Mutable<ILogicalExpression>> args = funcExpr.getArguments();
+            boolean changed = false;
+            for (Mutable<ILogicalExpression> arg : args) {
+                ILogicalExpression argExpr = arg.getValue();
+                if (argExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                    AbstractFunctionCallExpression argFuncExpr = (AbstractFunctionCallExpression) argExpr;
+                    IAType exprType = (IAType) env.getType(argFuncExpr);
+                    changed = changed || rewriteFuncExpr(argFuncExpr, exprType, exprType, env);
+                }
+            }
+            return changed;
+        }
+    }
+
+    /**
+     * only called when funcExpr is record constructor
+     * 
+     * @param funcExpr
+     *            record constructor function expression
+     * @param requiredListType
+     *            required record type
+     * @param inputRecordType
+     * @param env
+     *            type environment
+     * @throws AlgebricksException
+     */
+    private static boolean rewriteRecordFuncExpr(AbstractFunctionCallExpression funcExpr,
+            ARecordType requiredRecordType, ARecordType inputRecordType, IVariableTypeEnvironment env)
+            throws AlgebricksException {
+        // if already rewritten, the required type is not null
+        if (TypeComputerUtilities.getRequiredType(funcExpr) != null)
+            return false;
+        TypeComputerUtilities.setRequiredAndInputTypes(funcExpr, requiredRecordType, inputRecordType);
+        staticRecordTypeCast(funcExpr, requiredRecordType, inputRecordType, env);
+        return true;
+    }
+
+    /**
+     * only called when funcExpr is list constructor
+     * 
+     * @param funcExpr
+     *            list constructor function expression
+     * @param requiredListType
+     *            required list type
+     * @param inputListType
+     * @param env
+     *            type environment
+     * @throws AlgebricksException
+     */
+    private static boolean rewriteListFuncExpr(AbstractFunctionCallExpression funcExpr,
+            AbstractCollectionType requiredListType, AbstractCollectionType inputListType, IVariableTypeEnvironment env)
+            throws AlgebricksException {
+        if (TypeComputerUtilities.getRequiredType(funcExpr) != null)
+            return false;
+
+        TypeComputerUtilities.setRequiredAndInputTypes(funcExpr, requiredListType, inputListType);
+        List<Mutable<ILogicalExpression>> args = funcExpr.getArguments();
+
+        IAType itemType = requiredListType.getItemType();
+        IAType inputItemType = inputListType.getItemType();
+        for (int j = 0; j < args.size(); j++) {
+            ILogicalExpression arg = args.get(j).getValue();
+            if (arg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                ScalarFunctionCallExpression argFunc = (ScalarFunctionCallExpression) arg;
+                IAType currentItemType = (IAType) env.getType(argFunc);
+                if (inputItemType == null || inputItemType == BuiltinType.ANY) {
+                    currentItemType = (IAType) env.getType(argFunc);
+                    rewriteFuncExpr(argFunc, itemType, currentItemType, env);
+                } else {
+                    rewriteFuncExpr(argFunc, itemType, inputItemType, env);
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * This method statically cast the type of records from their current type to the required type.
+     * 
+     * @param func
+     *            The record constructor expression.
+     * @param reqType
+     *            The required type.
+     * @param inputType
+     *            The current type.
+     * @param env
+     *            The type environment.
+     * @throws AlgebricksException
+     */
+    private static void staticRecordTypeCast(AbstractFunctionCallExpression func, ARecordType reqType,
+            ARecordType inputType, IVariableTypeEnvironment env) throws AlgebricksException {
+        IAType[] reqFieldTypes = reqType.getFieldTypes();
+        String[] reqFieldNames = reqType.getFieldNames();
+        IAType[] inputFieldTypes = inputType.getFieldTypes();
+        String[] inputFieldNames = inputType.getFieldNames();
+
+        int[] fieldPermutation = new int[reqFieldTypes.length];
+        boolean[] nullFields = new boolean[reqFieldTypes.length];
+        boolean[] openFields = new boolean[inputFieldTypes.length];
+
+        Arrays.fill(nullFields, false);
+        Arrays.fill(openFields, true);
+        Arrays.fill(fieldPermutation, -1);
+
+        // forward match: match from actual to required
+        boolean matched = false;
+        for (int i = 0; i < inputFieldNames.length; i++) {
+            String fieldName = inputFieldNames[i];
+            IAType fieldType = inputFieldTypes[i];
+
+            if (2 * i + 1 > func.getArguments().size())
+                throw new AlgebricksException("expression index out of bound");
+
+            // 2*i+1 is the index of field value expression
+            ILogicalExpression arg = func.getArguments().get(2 * i + 1).getValue();
+            matched = false;
+            for (int j = 0; j < reqFieldNames.length; j++) {
+                String reqFieldName = reqFieldNames[j];
+                IAType reqFieldType = reqFieldTypes[j];
+                if (fieldName.equals(reqFieldName)) {
+                    //type matched
+                    if (fieldType.equals(reqFieldType)) {
+                        fieldPermutation[j] = i;
+                        openFields[i] = false;
+                        matched = true;
+
+                        if (arg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                            ScalarFunctionCallExpression scalarFunc = (ScalarFunctionCallExpression) arg;
+                            rewriteFuncExpr(scalarFunc, reqFieldType, fieldType, env);
+                        }
+                        break;
+                    }
+
+                    // match the optional field
+                    if (reqFieldType.getTypeTag() == ATypeTag.UNION
+                            && NonTaggedFormatUtil.isOptionalField((AUnionType) reqFieldType)) {
+                        IAType itemType = ((AUnionType) reqFieldType).getUnionList().get(
+                                NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+                        reqFieldType = itemType;
+                        if (fieldType.equals(BuiltinType.ANULL) || fieldType.equals(itemType)) {
+                            fieldPermutation[j] = i;
+                            openFields[i] = false;
+                            matched = true;
+
+                            // rewrite record expr
+                            if (arg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                                ScalarFunctionCallExpression scalarFunc = (ScalarFunctionCallExpression) arg;
+                                rewriteFuncExpr(scalarFunc, reqFieldType, fieldType, env);
+                            }
+                            break;
+                        }
+                    }
+
+                    // match the optional type input for a non-optional field
+                    // delay that to runtime by calling the not-null function
+                    if (fieldType.getTypeTag() == ATypeTag.UNION
+                            && NonTaggedFormatUtil.isOptionalField((AUnionType) fieldType)) {
+                        IAType itemType = ((AUnionType) fieldType).getUnionList().get(
+                                NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+                        if (reqFieldType.equals(itemType)) {
+                            fieldPermutation[j] = i;
+                            openFields[i] = false;
+                            matched = true;
+
+                            ScalarFunctionCallExpression notNullFunc = new ScalarFunctionCallExpression(
+                                    new AsterixFunctionInfo(AsterixBuiltinFunctions.NOT_NULL));
+                            notNullFunc.getArguments().add(new MutableObject<ILogicalExpression>(arg));
+                            //wrap the not null function to the original function
+                            func.getArguments().get(2 * i + 1).setValue(notNullFunc);
+                            break;
+                        }
+                    }
+
+                    // match the record field: need cast
+                    if (arg.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                        ScalarFunctionCallExpression scalarFunc = (ScalarFunctionCallExpression) arg;
+                        rewriteFuncExpr(scalarFunc, reqFieldType, fieldType, env);
+                        fieldPermutation[j] = i;
+                        openFields[i] = false;
+                        matched = true;
+                        break;
+                    }
+                }
+            }
+            // the input has extra fields
+            if (!matched && !reqType.isOpen())
+                throw new AlgebricksException("static type mismatch: including an extra closed field " + fieldName);
+        }
+
+        // backward match: match from required to actual
+        for (int i = 0; i < reqFieldNames.length; i++) {
+            String reqFieldName = reqFieldNames[i];
+            IAType reqFieldType = reqFieldTypes[i];
+            matched = false;
+            for (int j = 0; j < inputFieldNames.length; j++) {
+                String fieldName = inputFieldNames[j];
+                IAType fieldType = inputFieldTypes[j];
+                if (!fieldName.equals(reqFieldName))
+                    continue;
+                // should check open field here
+                // because number of entries in fieldPermuations is the
+                // number of required schema fields
+                // here we want to check if an input field is matched
+                // the entry index of fieldPermuatons is req field index
+                if (!openFields[j]) {
+                    matched = true;
+                    break;
+                }
+
+                // match the optional field
+                if (reqFieldType.getTypeTag() == ATypeTag.UNION
+                        && NonTaggedFormatUtil.isOptionalField((AUnionType) reqFieldType)) {
+                    IAType itemType = ((AUnionType) reqFieldType).getUnionList().get(
+                            NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+                    if (fieldType.equals(BuiltinType.ANULL) || fieldType.equals(itemType)) {
+                        matched = true;
+                        break;
+                    }
+                }
+            }
+            if (matched)
+                continue;
+
+            if (reqFieldType.getTypeTag() == ATypeTag.UNION
+                    && NonTaggedFormatUtil.isOptionalField((AUnionType) reqFieldType)) {
+                // add a null field
+                nullFields[i] = true;
+            } else {
+                // no matched field in the input for a required closed field
+                throw new AlgebricksException("static type mismatch: miss a required closed field " + reqFieldName);
+            }
+        }
+
+        List<Mutable<ILogicalExpression>> arguments = func.getArguments();
+        List<Mutable<ILogicalExpression>> originalArguments = new ArrayList<Mutable<ILogicalExpression>>();
+        originalArguments.addAll(arguments);
+        arguments.clear();
+        // re-order the closed part and fill in null fields
+        for (int i = 0; i < fieldPermutation.length; i++) {
+            int pos = fieldPermutation[i];
+            if (pos >= 0) {
+                arguments.add(originalArguments.get(2 * pos));
+                arguments.add(originalArguments.get(2 * pos + 1));
+            }
+            if (nullFields[i]) {
+                // add a null field
+                arguments.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                        new AString(reqFieldNames[i])))));
+                arguments.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                        ANull.NULL))));
+            }
+        }
+
+        // add the open part
+        for (int i = 0; i < openFields.length; i++) {
+            if (openFields[i]) {
+                arguments.add(originalArguments.get(2 * i));
+                Mutable<ILogicalExpression> fExprRef = originalArguments.get(2 * i + 1);
+                ILogicalExpression argExpr = fExprRef.getValue();
+
+                // we need to handle open fields recursively by their default
+                // types
+                // for list, their item type is any
+                // for record, their
+                if (argExpr.getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
+                    IAType reqFieldType = inputFieldTypes[i];
+                    if (inputFieldTypes[i].getTypeTag() == ATypeTag.RECORD) {
+                        reqFieldType = DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE;
+                    }
+                    if (inputFieldTypes[i].getTypeTag() == ATypeTag.ORDEREDLIST) {
+                        reqFieldType = DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE;
+                    }
+                    if (inputFieldTypes[i].getTypeTag() == ATypeTag.UNORDEREDLIST) {
+                        reqFieldType = DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE;
+                    }
+                    if (TypeComputerUtilities.getRequiredType((AbstractFunctionCallExpression) argExpr) == null) {
+                        ScalarFunctionCallExpression argFunc = (ScalarFunctionCallExpression) argExpr;
+                        rewriteFuncExpr(argFunc, reqFieldType, inputFieldTypes[i], env);
+                    }
+                }
+                arguments.add(fExprRef);
+            }
+        }
+    }
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
index 88e86ec..9fe5750 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
@@ -1,90 +1,127 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.translator;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 
 import edu.uci.ics.asterix.aql.base.Statement;
-import edu.uci.ics.asterix.aql.expression.DataverseDecl;
-import edu.uci.ics.asterix.aql.expression.SetStatement;
-import edu.uci.ics.asterix.aql.expression.TypeDecl;
-import edu.uci.ics.asterix.aql.expression.WriteStatement;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.aql.expression.DatasetDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
+import edu.uci.ics.asterix.aql.expression.DeleteStatement;
+import edu.uci.ics.asterix.aql.expression.DropStatement;
+import edu.uci.ics.asterix.aql.expression.InsertStatement;
+import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IAWriterFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.writers.PrinterBasedWriterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints;
+import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
+/**
+ * Base class for AQL translators. Contains the common validation logic for AQL
+ * statements.
+ */
 public abstract class AbstractAqlTranslator {
 
-    public AqlCompiledMetadataDeclarations compileMetadata(MetadataTransactionContext mdTxnCtx,
-            List<Statement> statements, boolean online) throws AlgebricksException, MetadataException {
-        List<TypeDecl> typeDeclarations = new ArrayList<TypeDecl>();
-        Map<String, String> config = new HashMap<String, String>();
+    protected static final Map<String, BuiltinType> builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
 
-        FileSplit outputFile = null;
-        IAWriterFactory writerFactory = null;
-        String dataverseName = MetadataConstants.METADATA_DATAVERSE_NAME;
-        for (Statement stmt : statements) {
-            switch (stmt.getKind()) {
-                case TYPE_DECL: {
-                    typeDeclarations.add((TypeDecl) stmt);
-                    break;
+    public void validateOperation(Dataverse defaultDataverse, Statement stmt) throws AsterixException {
+        boolean invalidOperation = false;
+        String message = null;
+        String dataverse = defaultDataverse != null ? defaultDataverse.getDataverseName() : null;
+        switch (stmt.getKind()) {
+            case INSERT:
+                InsertStatement insertStmt = (InsertStatement) stmt;
+                if (insertStmt.getDataverseName() != null) {
+                    dataverse = insertStmt.getDataverseName().getValue();
                 }
-                case DATAVERSE_DECL: {
-                    DataverseDecl dstmt = (DataverseDecl) stmt;
-                    dataverseName = dstmt.getDataverseName().toString();
-                    break;
+                invalidOperation = MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverse);
+                if (invalidOperation) {
+                    message = "Insert operation is not permitted in dataverse "
+                            + MetadataConstants.METADATA_DATAVERSE_NAME;
                 }
-                case WRITE: {
-                    if (outputFile != null) {
-                        throw new AlgebricksException("Multiple 'write' statements.");
-                    }
-                    WriteStatement ws = (WriteStatement) stmt;
-                    File f = new File(ws.getFileName());
-                    outputFile = new FileSplit(ws.getNcName().getValue(), new FileReference(f));
-                    if (ws.getWriterClassName() != null) {
-                        try {
-                            writerFactory = (IAWriterFactory) Class.forName(ws.getWriterClassName()).newInstance();
-                        } catch (Exception e) {
-                            throw new AlgebricksException(e);
+                break;
+
+            case DELETE:
+                DeleteStatement deleteStmt = (DeleteStatement) stmt;
+                if (deleteStmt.getDataverseName() != null) {
+                    dataverse = deleteStmt.getDataverseName().getValue();
+                }
+                invalidOperation = MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverse);
+                if (invalidOperation) {
+                    message = "Delete operation is not permitted in dataverse "
+                            + MetadataConstants.METADATA_DATAVERSE_NAME;
+                }
+                break;
+
+            case NODEGROUP_DROP:
+                String nodegroupName = ((NodeGroupDropStatement) stmt).getNodeGroupName().getValue();
+                invalidOperation = MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME.equals(nodegroupName);
+                if (invalidOperation) {
+                    message = "Cannot drop nodegroup:" + nodegroupName;
+                }
+                break;
+
+            case DATAVERSE_DROP:
+                DataverseDropStatement dvDropStmt = (DataverseDropStatement) stmt;
+                invalidOperation = MetadataConstants.METADATA_DATAVERSE_NAME.equals(dvDropStmt.getDataverseName()
+                        .getValue());
+                if (invalidOperation) {
+                    message = "Cannot drop dataverse:" + dvDropStmt.getDataverseName().getValue();
+                }
+                break;
+
+            case DATASET_DROP:
+                DropStatement dropStmt = (DropStatement) stmt;
+                if (dropStmt.getDataverseName() != null) {
+                    dataverse = dropStmt.getDataverseName().getValue();
+                }
+                invalidOperation = MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverse);
+                if (invalidOperation) {
+                    message = "Cannot drop a dataset belonging to the dataverse:"
+                            + MetadataConstants.METADATA_DATAVERSE_NAME;
+                }
+                break;
+            case DATASET_DECL:
+                DatasetDecl datasetStmt = (DatasetDecl) stmt;
+                Map<String, String> hints = datasetStmt.getHints();
+                if (hints != null && !hints.isEmpty()) {
+                    Pair<Boolean, String> validationResult = null;
+                    StringBuffer errorMsgBuffer = new StringBuffer();
+                    for (Entry<String, String> hint : hints.entrySet()) {
+                        validationResult = DatasetHints.validate(hint.getKey(), hint.getValue());
+                        if (!validationResult.first) {
+                            errorMsgBuffer.append("Dataset: " + datasetStmt.getName().getValue()
+                                    + " error in processing hint: " + hint.getKey() + " " + validationResult.second);
+                            errorMsgBuffer.append(" \n");
                         }
                     }
-                    break;
+                    invalidOperation = errorMsgBuffer.length() > 0;
+                    if (invalidOperation) {
+                        message = errorMsgBuffer.toString();
+                    }
                 }
-                case SET: {
-                    SetStatement ss = (SetStatement) stmt;
-                    String pname = ss.getPropName();
-                    String pvalue = ss.getPropValue();
-                    config.put(pname, pvalue);
-                    break;
-                }
-            }
-        }
-        if (writerFactory == null) {
-            writerFactory = PrinterBasedWriterFactory.INSTANCE;
+                break;
+
         }
 
-        MetadataDeclTranslator metadataTranslator = new MetadataDeclTranslator(mdTxnCtx, dataverseName, outputFile,
-                writerFactory, config, typeDeclarations);
-        return metadataTranslator.computeMetadataDeclarations(online);
-    }
-
-    public void validateOperation(AqlCompiledMetadataDeclarations compiledDeclarations, Statement stmt)
-            throws AlgebricksException {
-        if (compiledDeclarations.getDataverseName() != null
-                && compiledDeclarations.getDataverseName().equals(MetadataConstants.METADATA_DATAVERSE_NAME)) {
-            if (stmt.getKind() == Statement.Kind.INSERT || stmt.getKind() == Statement.Kind.UPDATE
-                    || stmt.getKind() == Statement.Kind.DELETE) {
-                throw new AlgebricksException(" Operation  " + stmt.getKind() + " not permitted in system dataverse-"
-                        + MetadataConstants.METADATA_DATAVERSE_NAME);
-            }
+        if (invalidOperation) {
+            throw new AsterixException("Invalid operation - " + message);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
index d601fc4..caa16d4 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
@@ -11,7 +11,6 @@
 
 import edu.uci.ics.asterix.aql.base.Clause;
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.base.Expression.Kind;
 import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
 import edu.uci.ics.asterix.aql.expression.CallExpr;
@@ -41,6 +40,7 @@
 import edu.uci.ics.asterix.aql.expression.LetClause;
 import edu.uci.ics.asterix.aql.expression.LimitClause;
 import edu.uci.ics.asterix.aql.expression.ListConstructor;
+import edu.uci.ics.asterix.aql.expression.ListConstructor.Type;
 import edu.uci.ics.asterix.aql.expression.LiteralExpr;
 import edu.uci.ics.asterix.aql.expression.LoadFromFileStatement;
 import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
@@ -48,8 +48,10 @@
 import edu.uci.ics.asterix.aql.expression.OperatorExpr;
 import edu.uci.ics.asterix.aql.expression.OperatorType;
 import edu.uci.ics.asterix.aql.expression.OrderbyClause;
+import edu.uci.ics.asterix.aql.expression.OrderbyClause.OrderModifier;
 import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
 import edu.uci.ics.asterix.aql.expression.QuantifiedExpression;
+import edu.uci.ics.asterix.aql.expression.QuantifiedExpression.Quantifier;
 import edu.uci.ics.asterix.aql.expression.QuantifiedPair;
 import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.RecordConstructor;
@@ -59,6 +61,7 @@
 import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
 import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
 import edu.uci.ics.asterix.aql.expression.UnaryExpr;
+import edu.uci.ics.asterix.aql.expression.UnaryExpr.Sign;
 import edu.uci.ics.asterix.aql.expression.UnionExpr;
 import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
 import edu.uci.ics.asterix.aql.expression.UpdateClause;
@@ -67,52 +70,54 @@
 import edu.uci.ics.asterix.aql.expression.WhereClause;
 import edu.uci.ics.asterix.aql.expression.WriteFromQueryResultStatement;
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
-import edu.uci.ics.asterix.aql.expression.ListConstructor.Type;
-import edu.uci.ics.asterix.aql.expression.OrderbyClause.OrderModifier;
-import edu.uci.ics.asterix.aql.expression.QuantifiedExpression.Quantifier;
-import edu.uci.ics.asterix.aql.expression.UnaryExpr.Sign;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
-import edu.uci.ics.asterix.metadata.declared.AqlLogicalPlanAndMetadataImpl;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.AqlSourceId;
-import edu.uci.ics.asterix.metadata.declared.FileSplitDataSink;
-import edu.uci.ics.asterix.metadata.declared.FileSplitSinkId;
+import edu.uci.ics.asterix.metadata.declared.ResultSetDataSink;
+import edu.uci.ics.asterix.metadata.declared.ResultSetSinkId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.formats.FormatUtils;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.OperatorAnnotations;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation.BroadcastSide;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation.BroadcastSide;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
@@ -121,27 +126,22 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DieOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistinctOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.DistributeResultOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.EmptyTupleSourceOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.InsertDeleteOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.LimitOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.NestedTupleSourceOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ProjectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SinkOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SubplanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnionAllOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.WriteOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.WriteResultOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.plan.ALogicalPlanImpl;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
@@ -149,95 +149,76 @@
  * Each visit returns a pair of an operator and a variable. The variable
  * corresponds to the new column, if any, added to the tuple flow. E.g., for
  * Unnest, the column is the variable bound to the elements in the list, for
- * Subplan it is null.
- * The first argument of a visit method is the expression which is translated.
- * The second argument of a visit method is the tuple source for the current
- * subtree.
+ * Subplan it is null. The first argument of a visit method is the expression
+ * which is translated. The second argument of a visit method is the tuple
+ * source for the current subtree.
  */
 
 public class AqlExpressionToPlanTranslator extends AbstractAqlTranslator implements
         IAqlExpressionVisitor<Pair<ILogicalOperator, LogicalVariable>, Mutable<ILogicalOperator>> {
 
-    private final MetadataTransactionContext mdTxnCtx;
-    private final long txnId;
-    private TranslationContext context;
-    private String outputDatasetName;
-    private Statement.Kind dmlKind;
+    private final AqlMetadataProvider metadataProvider;
+    private final TranslationContext context;
+    private final String outputDatasetName;
+    private final ICompiledDmlStatement stmt;
     private static AtomicLong outputFileID = new AtomicLong(0);
     private static final String OUTPUT_FILE_PREFIX = "OUTPUT_";
-
     private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
 
-    public AqlExpressionToPlanTranslator(long txnId, MetadataTransactionContext mdTxnCtx, int currentVarCounter,
-            String outputDatasetName, Statement.Kind dmlKind) {
-        this.mdTxnCtx = mdTxnCtx;
-        this.txnId = txnId;
+    public AqlExpressionToPlanTranslator(AqlMetadataProvider metadataProvider, int currentVarCounter,
+            String outputDatasetName, ICompiledDmlStatement stmt) {
         this.context = new TranslationContext(new Counter(currentVarCounter));
         this.outputDatasetName = outputDatasetName;
-        this.dmlKind = dmlKind;
+        this.stmt = stmt;
+        this.metadataProvider = metadataProvider;
     }
 
     public int getVarCounter() {
         return context.getVarCounter();
     }
 
-    public ILogicalPlanAndMetadata translate(Query expr, AqlCompiledMetadataDeclarations compiledDeclarations)
-            throws AlgebricksException, AsterixException {
-        if (expr == null) {
-            return null;
-        }
-        if (compiledDeclarations == null) {
-            compiledDeclarations = compileMetadata(mdTxnCtx, expr.getPrologDeclList(), true);
-        }
-        if (!compiledDeclarations.isConnectedToDataverse())
-            compiledDeclarations.connectToDataverse(compiledDeclarations.getDataverseName());
-        IDataFormat format = compiledDeclarations.getFormat();
-        if (format == null) {
-            throw new AlgebricksException("Data format has not been set.");
-        }
+    public ILogicalPlan translate(Query expr) throws AlgebricksException, AsterixException {
+        IDataFormat format = FormatUtils.getDefaultFormat();
         format.registerRuntimeFunctions();
+
         Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this, new MutableObject<ILogicalOperator>(
                 new EmptyTupleSourceOperator()));
 
         ArrayList<Mutable<ILogicalOperator>> globalPlanRoots = new ArrayList<Mutable<ILogicalOperator>>();
-
         boolean isTransactionalWrite = false;
         ILogicalOperator topOp = p.first;
         ProjectOperator project = (ProjectOperator) topOp;
         LogicalVariable resVar = project.getVariables().get(0);
         if (outputDatasetName == null) {
-            FileSplit outputFileSplit = compiledDeclarations.getOutputFile();
+            FileSplit outputFileSplit = metadataProvider.getOutputFile();
             if (outputFileSplit == null) {
                 outputFileSplit = getDefaultOutputFileLocation();
             }
-            compiledDeclarations.setOutputFile(outputFileSplit);
+            metadataProvider.setOutputFile(outputFileSplit);
+            String resultNodeName = outputFileSplit.getNodeName();
+
             List<Mutable<ILogicalExpression>> writeExprList = new ArrayList<Mutable<ILogicalExpression>>(1);
             writeExprList.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(resVar)));
-            FileSplitSinkId fssi = new FileSplitSinkId(outputFileSplit);
-            FileSplitDataSink sink = new FileSplitDataSink(fssi, null);
-            topOp = new WriteOperator(writeExprList, sink);
+            ResultSetSinkId rssId = new ResultSetSinkId(metadataProvider.getResultSetId(), resultNodeName);
+            ResultSetDataSink sink = new ResultSetDataSink(rssId, null);
+            topOp = new DistributeResultOperator(writeExprList, sink);
             topOp.getInputs().add(new MutableObject<ILogicalOperator>(project));
         } else {
-            String dataVerseName = compiledDeclarations.getDataverseName();
-            AqlCompiledDatasetDecl adecl = compiledDeclarations.findDataset(outputDatasetName);
-            if (adecl == null) {
-                throw new AlgebricksException("Cannot find dataset " + outputDatasetName);
-            }
 
-            AqlSourceId sourceId = new AqlSourceId(dataVerseName, outputDatasetName);
-            String itemTypeName = adecl.getItemTypeName();
-            IAType itemType = compiledDeclarations.findType(itemTypeName);
-            AqlDataSource dataSource = new AqlDataSource(sourceId, adecl, itemType);
-
-            if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
-                throw new AlgebricksException("Cannot write output to an external dataset.");
-            }
+            AqlDataSource targetDatasource = validateDatasetInfo(metadataProvider, stmt.getDataverseName(),
+                    stmt.getDatasetName());
             ArrayList<LogicalVariable> vars = new ArrayList<LogicalVariable>();
             ArrayList<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
             List<Mutable<ILogicalExpression>> varRefsForLoading = new ArrayList<Mutable<ILogicalExpression>>();
-            for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioner : DatasetUtils
-                    .getPartitioningFunctions(adecl)) {
-                AbstractFunctionCallExpression f = partitioner.second.cloneExpression();
+            List<String> partitionKeys = DatasetUtils.getPartitioningKeys(targetDatasource.getDataset());
+            for (String keyFieldName : partitionKeys) {
+                IFunctionInfo finfoAccess = AsterixBuiltinFunctions
+                        .getAsterixFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME);
+                @SuppressWarnings("unchecked")
+                ScalarFunctionCallExpression f = new ScalarFunctionCallExpression(finfoAccess,
+                        new MutableObject<ILogicalExpression>(new VariableReferenceExpression(METADATA_DUMMY_VAR)),
+                        new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                                new AString(keyFieldName)))));
                 f.substituteVar(METADATA_DUMMY_VAR, resVar);
                 exprs.add(new MutableObject<ILogicalExpression>(f));
                 LogicalVariable v = context.newVar();
@@ -249,51 +230,64 @@
 
             Mutable<ILogicalExpression> varRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
                     resVar));
-            ILogicalOperator load = null;
+            ILogicalOperator leafOperator = null;
 
-            switch (dmlKind) {
+            switch (stmt.getKind()) {
                 case WRITE_FROM_QUERY_RESULT: {
-                    load = new WriteResultOperator(dataSource, varRef, varRefsForLoading);
-                    load.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                    leafOperator = new WriteResultOperator(targetDatasource, varRef, varRefsForLoading);
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(assign));
                     break;
                 }
                 case INSERT: {
-                    ILogicalOperator insertOp = new InsertDeleteOperator(dataSource, varRef, varRefsForLoading,
+                    ILogicalOperator insertOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
                             InsertDeleteOperator.Kind.INSERT);
                     insertOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
-                    load = new SinkOperator();
-                    load.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
                     isTransactionalWrite = true;
                     break;
                 }
                 case DELETE: {
-                    ILogicalOperator deleteOp = new InsertDeleteOperator(dataSource, varRef, varRefsForLoading,
+                    ILogicalOperator deleteOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
                             InsertDeleteOperator.Kind.DELETE);
                     deleteOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
-                    load = new SinkOperator();
-                    load.getInputs().add(new MutableObject<ILogicalOperator>(deleteOp));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(deleteOp));
                     isTransactionalWrite = true;
                     break;
                 }
                 case BEGIN_FEED: {
-                    ILogicalOperator insertOp = new InsertDeleteOperator(dataSource, varRef, varRefsForLoading,
+                    ILogicalOperator insertOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
                             InsertDeleteOperator.Kind.INSERT);
                     insertOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
-                    load = new SinkOperator();
-                    load.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
                     isTransactionalWrite = false;
                     break;
                 }
             }
-            topOp = load;
+            topOp = leafOperator;
         }
-
         globalPlanRoots.add(new MutableObject<ILogicalOperator>(topOp));
         ILogicalPlan plan = new ALogicalPlanImpl(globalPlanRoots);
-        AqlMetadataProvider metadataProvider = new AqlMetadataProvider(txnId, isTransactionalWrite,
-                compiledDeclarations);
-        ILogicalPlanAndMetadata planAndMetadata = new AqlLogicalPlanAndMetadataImpl(plan, metadataProvider);
-        return planAndMetadata;
+        return plan;
+    }
+
+    private AqlDataSource validateDatasetInfo(AqlMetadataProvider metadataProvider, String dataverseName,
+            String datasetName) throws AlgebricksException {
+        Dataset dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Cannot find dataset " + datasetName + " in dataverse " + dataverseName);
+        }
+
+        AqlSourceId sourceId = new AqlSourceId(dataverseName, datasetName);
+        String itemTypeName = dataset.getItemTypeName();
+        IAType itemType = metadataProvider.findType(dataverseName, itemTypeName);
+        AqlDataSource dataSource = new AqlDataSource(sourceId, dataset, itemType);
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            throw new AlgebricksException("Cannot write output to an external dataset.");
+        }
+        return dataSource;
     }
 
     private FileSplit getDefaultOutputFileLocation() throws MetadataException {
@@ -310,7 +304,6 @@
     public Pair<ILogicalOperator, LogicalVariable> visitForClause(ForClause fc, Mutable<ILogicalOperator> tupSource)
             throws AsterixException {
         LogicalVariable v = context.newVar(fc.getVarExpr());
-
         Expression inExpr = fc.getInExpr();
         Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(inExpr, tupSource);
         ILogicalOperator returnedOp;
@@ -343,9 +336,9 @@
                 break;
             }
             default: {
+                v = context.newVar(lc.getVarExpr());
                 Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(lc.getBindingExpr(),
                         tupSource);
-                v = context.newVar(lc.getVarExpr());
                 returnedOp = new AssignOperator(v, new MutableObject<ILogicalExpression>(eo.first));
                 returnedOp.getInputs().add(eo.second);
                 break;
@@ -400,8 +393,8 @@
             Mutable<ILogicalOperator> tupSource) throws AsterixException {
         Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(fa.getExpr(), tupSource);
         LogicalVariable v = context.newVar();
-        AbstractFunctionCallExpression fldAccess = new ScalarFunctionCallExpression(FunctionUtils
-                .getFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME));
+        AbstractFunctionCallExpression fldAccess = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME));
         fldAccess.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
         ILogicalExpression faExpr = new ConstantExpression(new AsterixConstantValue(new AString(fa.getIdent()
                 .getValue())));
@@ -409,7 +402,6 @@
         AssignOperator a = new AssignOperator(v, new MutableObject<ILogicalExpression>(fldAccess));
         a.getInputs().add(p.second);
         return new Pair<ILogicalOperator, LogicalVariable>(a, v);
-
     }
 
     @Override
@@ -420,8 +412,8 @@
         AbstractFunctionCallExpression f;
         int i = ia.getIndex();
         if (i == IndexAccessor.ANY) {
-            f = new ScalarFunctionCallExpression(FunctionUtils
-                    .getFunctionInfo(AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER));
+            f = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER));
             f.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
         } else {
             f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM));
@@ -439,7 +431,7 @@
     public Pair<ILogicalOperator, LogicalVariable> visitCallExpr(CallExpr fcall, Mutable<ILogicalOperator> tupSource)
             throws AsterixException {
         LogicalVariable v = context.newVar();
-        AsterixFunction fid = fcall.getIdent();
+        FunctionSignature signature = fcall.getFunctionSignature();
         List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
         Mutable<ILogicalOperator> topOp = tupSource;
 
@@ -468,29 +460,22 @@
             }
         }
 
-        FunctionIdentifier fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, fid.getFunctionName(), false);
-        FunctionIdentifier builtinAquafi = AlgebricksBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
+        AbstractFunctionCallExpression f;
+        if ((f = lookupUserDefinedFunction(signature, args)) == null) {
+            f = lookupBuiltinFunction(signature.getName(), signature.getArity(), args);
+        }
 
-        if (builtinAquafi != null) {
-            fi = builtinAquafi;
-        } else {
-            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, fid.getFunctionName(), false);
-            FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
-            if (builtinAsterixFi != null) {
-                fi = builtinAsterixFi;
+        if (f == null) {
+            throw new AsterixException(" Unknown function " + signature.getName() + "@" + signature.getArity());
+        }
+
+        // Put hints into function call expr.
+        if (fcall.hasHints()) {
+            for (IExpressionAnnotation hint : fcall.getHints()) {
+                f.getAnnotations().put(hint, hint);
             }
         }
-        AbstractFunctionCallExpression f;
-        if (AsterixBuiltinFunctions.isBuiltinAggregateFunction(fi)) {
-            f = AsterixBuiltinFunctions.makeAggregateFunctionExpression(fi, args);
-        } else if (AsterixBuiltinFunctions.isBuiltinUnnestingFunction(fi)) {
-            UnnestingFunctionCallExpression ufce = new UnnestingFunctionCallExpression(FunctionUtils
-                    .getFunctionInfo(fi), args);
-            ufce.setReturnsUniqueValues(AsterixBuiltinFunctions.returnsUniqueValues(fi));
-            f = ufce;
-        } else {
-            f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(fi), args);
-        }
+
         AssignOperator op = new AssignOperator(v, new MutableObject<ILogicalExpression>(f));
         if (topOp != null) {
             op.getInputs().add(topOp);
@@ -499,6 +484,54 @@
         return new Pair<ILogicalOperator, LogicalVariable>(op, v);
     }
 
+    private AbstractFunctionCallExpression lookupUserDefinedFunction(FunctionSignature signature,
+            List<Mutable<ILogicalExpression>> args) throws MetadataException {
+        if (signature.getNamespace() == null) {
+            return null;
+        }
+        Function function = MetadataManager.INSTANCE.getFunction(metadataProvider.getMetadataTxnContext(), signature);
+        if (function == null) {
+            return null;
+        }
+        AbstractFunctionCallExpression f = null;
+        if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+            IFunctionInfo finfo = new AsterixFunctionInfo(signature);
+            return new ScalarFunctionCallExpression(finfo, args);
+        } else {
+            throw new MetadataException(" User defined functions written in " + function.getLanguage()
+                    + " are not supported");
+        }
+    }
+
+    private AbstractFunctionCallExpression lookupBuiltinFunction(String functionName, int arity,
+            List<Mutable<ILogicalExpression>> args) {
+        AbstractFunctionCallExpression f = null;
+        FunctionIdentifier fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, functionName, arity);
+        AsterixFunctionInfo afi = AsterixBuiltinFunctions.lookupFunction(fi);
+        FunctionIdentifier builtinAquafi = afi == null ? null : afi.getFunctionIdentifier();
+
+        if (builtinAquafi != null) {
+            fi = builtinAquafi;
+        } else {
+            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, functionName, arity);
+            afi = AsterixBuiltinFunctions.lookupFunction(fi);
+            if (afi == null) {
+                return null;
+            }
+        }
+        if (AsterixBuiltinFunctions.isBuiltinAggregateFunction(fi)) {
+            f = AsterixBuiltinFunctions.makeAggregateFunctionExpression(fi, args);
+        } else if (AsterixBuiltinFunctions.isBuiltinUnnestingFunction(fi)) {
+            UnnestingFunctionCallExpression ufce = new UnnestingFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(fi), args);
+            ufce.setReturnsUniqueValues(AsterixBuiltinFunctions.returnsUniqueValues(fi));
+            f = ufce;
+        } else {
+            f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(fi), args);
+        }
+        return f;
+    }
+
     @Override
     public Pair<ILogicalOperator, LogicalVariable> visitFunctionDecl(FunctionDecl fd,
             Mutable<ILogicalOperator> tupSource) {
@@ -588,9 +621,9 @@
         sel1.getInputs().add(new MutableObject<ILogicalOperator>(pThen.first));
 
         Pair<ILogicalOperator, LogicalVariable> pElse = ifexpr.getElseExpr().accept(this, nestedSource);
-        AbstractFunctionCallExpression notVarCond = new ScalarFunctionCallExpression(FunctionUtils
-                .getFunctionInfo(AlgebricksBuiltinFunctions.NOT), new MutableObject<ILogicalExpression>(
-                new VariableReferenceExpression(varCond)));
+        AbstractFunctionCallExpression notVarCond = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.NOT), new MutableObject<ILogicalExpression>(
+                        new VariableReferenceExpression(varCond)));
         SelectOperator sel2 = new SelectOperator(new MutableObject<ILogicalExpression>(notVarCond));
         sel2.getInputs().add(new MutableObject<ILogicalOperator>(pElse.first));
 
@@ -603,10 +636,10 @@
         sp.getInputs().add(opCondRef);
 
         LogicalVariable resV = context.newVar();
-        AbstractFunctionCallExpression concatNonNull = new ScalarFunctionCallExpression(FunctionUtils
-                .getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL), new MutableObject<ILogicalExpression>(
-                new VariableReferenceExpression(pThen.second)), new MutableObject<ILogicalExpression>(
-                new VariableReferenceExpression(pElse.second)));
+        AbstractFunctionCallExpression concatNonNull = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pThen.second)),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pElse.second)));
         AssignOperator a = new AssignOperator(resV, new MutableObject<ILogicalExpression>(concatNonNull));
         a.getInputs().add(new MutableObject<ILogicalOperator>(sp));
 
@@ -694,6 +727,14 @@
             }
         }
 
+        // Add hints as annotations.
+        if (op.hasHints() && currExpr instanceof AbstractFunctionCallExpression) {
+            AbstractFunctionCallExpression currFuncExpr = (AbstractFunctionCallExpression) currExpr;
+            for (IExpressionAnnotation hint : op.getHints()) {
+                currFuncExpr.getAnnotations().put(hint, hint);
+            }
+        }
+
         LogicalVariable assignedVar = context.newVar();
         AssignOperator a = new AssignOperator(assignedVar, new MutableObject<ILogicalExpression>(currExpr));
 
@@ -714,9 +755,8 @@
             OrderModifier m = modifIter.next();
             OrderOperator.IOrder comp = (m == OrderModifier.ASC) ? OrderOperator.ASC_ORDER : OrderOperator.DESC_ORDER;
             ord.getOrderExpressions()
-                    .add(
-                            new Pair<IOrder, Mutable<ILogicalExpression>>(comp, new MutableObject<ILogicalExpression>(
-                                    p.first)));
+                    .add(new Pair<IOrder, Mutable<ILogicalExpression>>(comp, new MutableObject<ILogicalExpression>(
+                            p.first)));
             topOp = p.second;
         }
         ord.getInputs().add(topOp);
@@ -770,8 +810,8 @@
         } else { // EVERY
             List<Mutable<ILogicalExpression>> satExprList = new ArrayList<Mutable<ILogicalExpression>>(1);
             satExprList.add(new MutableObject<ILogicalExpression>(eo2.first));
-            s = new SelectOperator(new MutableObject<ILogicalExpression>(new ScalarFunctionCallExpression(FunctionUtils
-                    .getFunctionInfo(AlgebricksBuiltinFunctions.NOT), satExprList)));
+            s = new SelectOperator(new MutableObject<ILogicalExpression>(new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.NOT), satExprList)));
             s.getInputs().add(eo2.second);
             fAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(AsterixBuiltinFunctions.EMPTY_STREAM,
                     new ArrayList<Mutable<ILogicalExpression>>());
@@ -792,8 +832,8 @@
     @Override
     public Pair<ILogicalOperator, LogicalVariable> visitRecordConstructor(RecordConstructor rc,
             Mutable<ILogicalOperator> tupSource) throws AsterixException {
-        AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(FunctionUtils
-                .getFunctionInfo(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR));
+        AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR));
         LogicalVariable v1 = context.newVar();
         AssignOperator a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(f));
         Mutable<ILogicalOperator> topOp = tupSource;
@@ -837,8 +877,8 @@
         if (u.getSign() == Sign.POSITIVE) {
             a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(eo.first));
         } else {
-            AbstractFunctionCallExpression m = new ScalarFunctionCallExpression(FunctionUtils
-                    .getFunctionInfo(AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS));
+            AbstractFunctionCallExpression m = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS));
             m.getArguments().add(new MutableObject<ILogicalExpression>(eo.first));
             a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(m));
         }
@@ -1261,8 +1301,8 @@
     private ILogicalExpression makeUnnestExpression(ILogicalExpression expr) {
         switch (expr.getExpressionTag()) {
             case VARIABLE: {
-                return new UnnestingFunctionCallExpression(FunctionUtils
-                        .getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
+                return new UnnestingFunctionCallExpression(
+                        FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
                         new MutableObject<ILogicalExpression>(expr));
             }
             case FUNCTION_CALL: {
@@ -1270,8 +1310,8 @@
                 if (fce.getKind() == FunctionKind.UNNEST) {
                     return expr;
                 } else {
-                    return new UnnestingFunctionCallExpression(FunctionUtils
-                            .getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
+                    return new UnnestingFunctionCallExpression(
+                            FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
                             new MutableObject<ILogicalExpression>(expr));
                 }
             }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
index b1b8cb2..3440ce8 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
@@ -42,6 +42,7 @@
 import edu.uci.ics.asterix.aql.expression.LetClause;
 import edu.uci.ics.asterix.aql.expression.LimitClause;
 import edu.uci.ics.asterix.aql.expression.ListConstructor;
+import edu.uci.ics.asterix.aql.expression.ListConstructor.Type;
 import edu.uci.ics.asterix.aql.expression.LiteralExpr;
 import edu.uci.ics.asterix.aql.expression.LoadFromFileStatement;
 import edu.uci.ics.asterix.aql.expression.MetaVariableClause;
@@ -51,8 +52,10 @@
 import edu.uci.ics.asterix.aql.expression.OperatorExpr;
 import edu.uci.ics.asterix.aql.expression.OperatorType;
 import edu.uci.ics.asterix.aql.expression.OrderbyClause;
+import edu.uci.ics.asterix.aql.expression.OrderbyClause.OrderModifier;
 import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
 import edu.uci.ics.asterix.aql.expression.QuantifiedExpression;
+import edu.uci.ics.asterix.aql.expression.QuantifiedExpression.Quantifier;
 import edu.uci.ics.asterix.aql.expression.QuantifiedPair;
 import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.RecordConstructor;
@@ -62,6 +65,7 @@
 import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
 import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
 import edu.uci.ics.asterix.aql.expression.UnaryExpr;
+import edu.uci.ics.asterix.aql.expression.UnaryExpr.Sign;
 import edu.uci.ics.asterix.aql.expression.UnionExpr;
 import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
 import edu.uci.ics.asterix.aql.expression.UpdateClause;
@@ -70,48 +74,48 @@
 import edu.uci.ics.asterix.aql.expression.WhereClause;
 import edu.uci.ics.asterix.aql.expression.WriteFromQueryResultStatement;
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
-import edu.uci.ics.asterix.aql.expression.ListConstructor.Type;
-import edu.uci.ics.asterix.aql.expression.OrderbyClause.OrderModifier;
-import edu.uci.ics.asterix.aql.expression.QuantifiedExpression.Quantifier;
-import edu.uci.ics.asterix.aql.expression.UnaryExpr.Sign;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlPlusExpressionVisitor;
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.declared.AqlLogicalPlanAndMetadataImpl;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.FileSplitDataSink;
 import edu.uci.ics.asterix.metadata.declared.FileSplitSinkId;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.OperatorAnnotations;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation.BroadcastSide;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.BroadcastExpressionAnnotation.BroadcastSide;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
@@ -128,32 +132,23 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.LimitOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.NestedTupleSourceOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator;
+import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.ProjectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.SubplanOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnionAllOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.WriteOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.plan.ALogicalPlanImpl;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 /**
- * 
  * Each visit returns a pair of an operator and a variable. The variable
  * corresponds to the new column, if any, added to the tuple flow. E.g., for
  * Unnest, the column is the variable bound to the elements in the list, for
- * Subplan it is null.
- * 
- * The first argument of a visit method is the expression which is translated.
- * 
- * The second argument of a visit method is the tuple source for the current
- * subtree.
- * 
+ * Subplan it is null. The first argument of a visit method is the expression
+ * which is translated. The second argument of a visit method is the tuple
+ * source for the current subtree.
  */
 
 public class AqlPlusExpressionToPlanTranslator extends AbstractAqlTranslator implements
@@ -196,20 +191,25 @@
         }
     }
 
-    private final long txnId;
-    private final MetadataTransactionContext mdTxnCtx;
-    private TranslationContext context;
+    private final JobId jobId;
+   private TranslationContext context;
     private String outputDatasetName;
+    private ICompiledDmlStatement stmt;
+    private AqlMetadataProvider metadataProvider;
+
     private MetaScopeLogicalVariable metaScopeExp = new MetaScopeLogicalVariable();
     private MetaScopeILogicalOperator metaScopeOp = new MetaScopeILogicalOperator();
     private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
 
-    public AqlPlusExpressionToPlanTranslator(long txnId, MetadataTransactionContext mdTxnCtx,
-            Counter currentVarCounter, String outputDatasetName) {
-        this.txnId = txnId;
-        this.mdTxnCtx = mdTxnCtx;
+    
+    
+    public AqlPlusExpressionToPlanTranslator(JobId jobId, AqlMetadataProvider metadataProvider,
+            Counter currentVarCounter, String outputDatasetName, ICompiledDmlStatement stmt) {
+        this.jobId = jobId;
+        this.metadataProvider = metadataProvider;
         this.context = new TranslationContext(currentVarCounter);
         this.outputDatasetName = outputDatasetName;
+        this.stmt = stmt;
         this.context.setTopFlwor(false);
     }
 
@@ -217,21 +217,13 @@
         return context.getVarCounter();
     }
 
-    public ILogicalPlanAndMetadata translate(Query expr) throws AlgebricksException, AsterixException {
+    public ILogicalPlan translate(Query expr) throws AlgebricksException, AsterixException {
         return translate(expr, null);
     }
 
-    public ILogicalPlanAndMetadata translate(Query expr, AqlCompiledMetadataDeclarations compiledDeclarations)
+    public ILogicalPlan translate(Query expr, AqlMetadataProvider metadata)
             throws AlgebricksException, AsterixException {
-        if (expr == null) {
-            return null;
-        }
-        if (compiledDeclarations == null) {
-            compiledDeclarations = compileMetadata(mdTxnCtx, expr.getPrologDeclList(), true);
-        }
-        if (!compiledDeclarations.isConnectedToDataverse())
-            compiledDeclarations.connectToDataverse(compiledDeclarations.getDataverseName());
-        IDataFormat format = compiledDeclarations.getFormat();
+        IDataFormat format = metadata.getFormat();
         if (format == null) {
             throw new AlgebricksException("Data format has not been set.");
         }
@@ -248,24 +240,27 @@
         if (outputDatasetName == null) {
             List<Mutable<ILogicalExpression>> writeExprList = new ArrayList<Mutable<ILogicalExpression>>(1);
             writeExprList.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(resVar)));
-            FileSplitSinkId fssi = new FileSplitSinkId(compiledDeclarations.getOutputFile());
+            FileSplitSinkId fssi = new FileSplitSinkId(metadata.getOutputFile());
             FileSplitDataSink sink = new FileSplitDataSink(fssi, null);
             topOp = new WriteOperator(writeExprList, sink);
             topOp.getInputs().add(new MutableObject<ILogicalOperator>(project));
         } else {
-            AqlCompiledDatasetDecl adecl = compiledDeclarations.findDataset(outputDatasetName);
-            if (adecl == null) {
+            Dataset dataset = metadata.findDataset(stmt.getDataverseName(), outputDatasetName);
+            if (dataset == null) {
                 throw new AlgebricksException("Cannot find dataset " + outputDatasetName);
             }
-
-            if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
+            if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
                 throw new AlgebricksException("Cannot write output to an external dataset.");
             }
+            ARecordType itemType = (ARecordType) metadata.findType(dataset.getDataverseName(),
+                    dataset.getItemTypeName());
+            List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
             ArrayList<LogicalVariable> vars = new ArrayList<LogicalVariable>();
             ArrayList<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
             List<Mutable<ILogicalExpression>> varRefsForLoading = new ArrayList<Mutable<ILogicalExpression>>();
-            for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioner : DatasetUtils
-                    .getPartitioningFunctions(adecl)) {
+            for (String partitioningKey : partitioningKeys) {
+                Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioner = format
+                        .partitioningEvaluatorFactory(itemType, partitioningKey);
                 AbstractFunctionCallExpression f = partitioner.second.cloneExpression();
                 f.substituteVar(METADATA_DUMMY_VAR, resVar);
                 exprs.add(new MutableObject<ILogicalExpression>(f));
@@ -279,10 +274,7 @@
 
         globalPlanRoots.add(new MutableObject<ILogicalOperator>(topOp));
         ILogicalPlan plan = new ALogicalPlanImpl(globalPlanRoots);
-        AqlMetadataProvider metadataProvider = new AqlMetadataProvider(txnId, isTransactionalWrite,
-                compiledDeclarations);
-        ILogicalPlanAndMetadata planAndMetadata = new AqlLogicalPlanAndMetadataImpl(plan, metadataProvider);
-        return planAndMetadata;
+        return plan;
     }
 
     public ILogicalPlan translate(List<Clause> clauses) throws AlgebricksException, AsterixException {
@@ -320,8 +312,8 @@
             returnedOp = new UnnestOperator(v, new MutableObject<ILogicalExpression>(makeUnnestExpression(eo.first)));
         } else {
             LogicalVariable pVar = context.newVar(fc.getPosVarExpr());
-            returnedOp = new UnnestOperator(v, new MutableObject<ILogicalExpression>(makeUnnestExpression(eo.first)), pVar,
-                    BuiltinType.AINT32);
+            returnedOp = new UnnestOperator(v, new MutableObject<ILogicalExpression>(makeUnnestExpression(eo.first)),
+                    pVar, BuiltinType.AINT32);
         }
         returnedOp.getInputs().add(eo.second);
 
@@ -338,8 +330,8 @@
             case VARIABLE_EXPRESSION: {
                 v = context.newVar(lc.getVarExpr());
                 LogicalVariable prev = context.getVar(((VariableExpr) lc.getBindingExpr()).getVar().getId());
-                returnedOp = new AssignOperator(v,
-                        new MutableObject<ILogicalExpression>(new VariableReferenceExpression(prev)));
+                returnedOp = new AssignOperator(v, new MutableObject<ILogicalExpression>(
+                        new VariableReferenceExpression(prev)));
                 returnedOp.getInputs().add(tupSource);
                 break;
             }
@@ -428,18 +420,19 @@
             f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM));
             f.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
             f.getArguments().add(
-                    new  MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(i)))));
+                    new MutableObject<ILogicalExpression>(new ConstantExpression(
+                            new AsterixConstantValue(new AInt32(i)))));
         }
-        AssignOperator a = new AssignOperator(v, new  MutableObject<ILogicalExpression>(f));
+        AssignOperator a = new AssignOperator(v, new MutableObject<ILogicalExpression>(f));
         a.getInputs().add(p.second);
         return new Pair<ILogicalOperator, LogicalVariable>(a, v);
     }
 
     @Override
-    public Pair<ILogicalOperator, LogicalVariable> visitCallExpr(CallExpr fcall,  Mutable<ILogicalOperator> tupSource)
+    public Pair<ILogicalOperator, LogicalVariable> visitCallExpr(CallExpr fcall, Mutable<ILogicalOperator> tupSource)
             throws AsterixException {
         LogicalVariable v = context.newVar();
-        AsterixFunction fid = fcall.getIdent();
+        FunctionSignature signature = fcall.getFunctionSignature();
         List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
         Mutable<ILogicalOperator> topOp = tupSource;
 
@@ -468,13 +461,14 @@
             }
         }
 
-        FunctionIdentifier fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, fid.getFunctionName(), false);
-        FunctionIdentifier builtinAquafi = AlgebricksBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
+        FunctionIdentifier fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, signature.getName());
+        AsterixFunctionInfo afi = AsterixBuiltinFunctions.lookupFunction(fi);
+        FunctionIdentifier builtinAquafi = afi == null ? null : afi.getFunctionIdentifier();
 
         if (builtinAquafi != null) {
             fi = builtinAquafi;
         } else {
-            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, fid.getFunctionName(), false);
+            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, signature.getName());
             FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
             if (builtinAsterixFi != null) {
                 fi = builtinAsterixFi;
@@ -500,7 +494,8 @@
     }
 
     @Override
-    public Pair<ILogicalOperator, LogicalVariable> visitFunctionDecl(FunctionDecl fd, Mutable<ILogicalOperator> tupSource) {
+    public Pair<ILogicalOperator, LogicalVariable> visitFunctionDecl(FunctionDecl fd,
+            Mutable<ILogicalOperator> tupSource) {
         // TODO Auto-generated method stub
         throw new NotImplementedException();
     }
@@ -544,9 +539,10 @@
             AggregateFunctionCallExpression fListify = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
                     AsterixBuiltinFunctions.LISTIFY, flArgs);
             AggregateOperator agg = new AggregateOperator(mkSingletonArrayList(aggVar),
-                    (List)mkSingletonArrayList(new MutableObject<ILogicalExpression>(fListify)));
+                    (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(fListify)));
             agg.getInputs().add(
-                    new MutableObject<ILogicalOperator>(new NestedTupleSourceOperator(new MutableObject<ILogicalOperator>(gOp))));
+                    new MutableObject<ILogicalOperator>(new NestedTupleSourceOperator(
+                            new MutableObject<ILogicalOperator>(gOp))));
             ILogicalPlan plan = new ALogicalPlanImpl(new MutableObject<ILogicalOperator>(agg));
             gOp.getNestedPlans().add(plan);
             // Hide the variable that was part of the "with", replacing it with
@@ -580,8 +576,8 @@
                 new MutableObject<ILogicalOperator>(sp)));
 
         Pair<ILogicalOperator, LogicalVariable> pThen = ifexpr.getThenExpr().accept(this, nestedSource);
-        SelectOperator sel1 = new SelectOperator(new MutableObject<ILogicalExpression>(
-                new VariableReferenceExpression(varCond)));
+        SelectOperator sel1 = new SelectOperator(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
+                varCond)));
         sel1.getInputs().add(new MutableObject<ILogicalOperator>(pThen.first));
 
         Pair<ILogicalOperator, LogicalVariable> pElse = ifexpr.getElseExpr().accept(this, nestedSource);
@@ -601,9 +597,9 @@
 
         LogicalVariable resV = context.newVar();
         AbstractFunctionCallExpression concatNonNull = new ScalarFunctionCallExpression(
-                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL), new MutableObject<ILogicalExpression>(
-                        new VariableReferenceExpression(pThen.second)), new MutableObject<ILogicalExpression>(
-                        new VariableReferenceExpression(pElse.second)));
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pThen.second)),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pElse.second)));
         AssignOperator a = new AssignOperator(resV, new MutableObject<ILogicalExpression>(concatNonNull));
         a.getInputs().add(new MutableObject<ILogicalOperator>(sp));
 
@@ -622,8 +618,8 @@
     }
 
     @Override
-    public Pair<ILogicalOperator, LogicalVariable> visitOperatorExpr(OperatorExpr op, Mutable<ILogicalOperator> tupSource)
-            throws AsterixException {
+    public Pair<ILogicalOperator, LogicalVariable> visitOperatorExpr(OperatorExpr op,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
         ArrayList<OperatorType> ops = op.getOpList();
         int nOps = ops.size();
 
@@ -680,7 +676,8 @@
                     }
                 }
             } else { // don't forget the last expression...
-                ((AbstractFunctionCallExpression) currExpr).getArguments().add(new MutableObject<ILogicalExpression>(e));
+                ((AbstractFunctionCallExpression) currExpr).getArguments()
+                        .add(new MutableObject<ILogicalExpression>(e));
                 if (i == 1 && op.isBroadcastOperand(i)) {
                     BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
                     bcast.setObject(BroadcastSide.RIGHT);
@@ -709,8 +706,9 @@
             Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(e, topOp);
             OrderModifier m = modifIter.next();
             OrderOperator.IOrder comp = (m == OrderModifier.ASC) ? OrderOperator.ASC_ORDER : OrderOperator.DESC_ORDER;
-            ord.getOrderExpressions().add(
-                    new Pair<IOrder, Mutable<ILogicalExpression>>(comp, new MutableObject<ILogicalExpression>(p.first)));
+            ord.getOrderExpressions()
+                    .add(new Pair<IOrder, Mutable<ILogicalExpression>>(comp, new MutableObject<ILogicalExpression>(
+                            p.first)));
             topOp = p.second;
         }
         ord.getInputs().add(topOp);
@@ -772,7 +770,7 @@
         }
         LogicalVariable qeVar = context.newVar();
         AggregateOperator a = new AggregateOperator(mkSingletonArrayList(qeVar),
-                (List)mkSingletonArrayList(new MutableObject<ILogicalExpression>(fAgg)));
+                (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(fAgg)));
         a.getInputs().add(new MutableObject<ILogicalOperator>(s));
         return new Pair<ILogicalOperator, LogicalVariable>(a, qeVar);
     }
@@ -845,8 +843,8 @@
         // Should we ever get to this method?
         LogicalVariable var = context.newVar();
         LogicalVariable oldV = context.getVar(v.getVar().getId());
-        AssignOperator a = new AssignOperator(var,
-                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(oldV)));
+        AssignOperator a = new AssignOperator(var, new MutableObject<ILogicalExpression>(
+                new VariableReferenceExpression(oldV)));
         a.getInputs().add(tupSource);
         return new Pair<ILogicalOperator, LogicalVariable>(a, var);
     }
@@ -1119,7 +1117,7 @@
         funAgg.getArguments().add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(var)));
         LogicalVariable varListified = context.newVar();
         AggregateOperator agg = new AggregateOperator(mkSingletonArrayList(varListified),
-                (List)mkSingletonArrayList(new MutableObject<ILogicalExpression>(funAgg)));
+                (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(funAgg)));
         agg.getInputs().add(opRef);
         ILogicalOperator res;
         if (bProject) {
@@ -1235,7 +1233,6 @@
         return null;
     }
 
-  
     @Override
     public Pair<ILogicalOperator, LogicalVariable> visitOrderedListTypeDefiniton(OrderedListTypeDefinition olte,
             Mutable<ILogicalOperator> arg) throws AsterixException {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
new file mode 100644
index 0000000..625fed1
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
@@ -0,0 +1,575 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.translator;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.asterix.aql.base.Clause;
+import edu.uci.ics.asterix.aql.base.Expression;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+import edu.uci.ics.asterix.aql.expression.CallExpr;
+import edu.uci.ics.asterix.aql.expression.ControlFeedStatement.OperationType;
+import edu.uci.ics.asterix.aql.expression.FLWOGRExpression;
+import edu.uci.ics.asterix.aql.expression.FieldAccessor;
+import edu.uci.ics.asterix.aql.expression.FieldBinding;
+import edu.uci.ics.asterix.aql.expression.ForClause;
+import edu.uci.ics.asterix.aql.expression.Identifier;
+import edu.uci.ics.asterix.aql.expression.LiteralExpr;
+import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.expression.RecordConstructor;
+import edu.uci.ics.asterix.aql.expression.VariableExpr;
+import edu.uci.ics.asterix.aql.expression.WhereClause;
+import edu.uci.ics.asterix.aql.literal.StringLiteral;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+
+/**
+ * An AQL statement instance is translated into an instance of type CompileX
+ * that has additional fields for use by the AqlTranslator.
+ */
+public class CompiledStatements {
+
+	public static interface ICompiledStatement {
+
+		public Kind getKind();
+	}
+
+	public static class CompiledWriteFromQueryResultStatement implements
+			ICompiledDmlStatement {
+
+		private String dataverseName;
+		private String datasetName;
+		private Query query;
+		private int varCounter;
+
+		public CompiledWriteFromQueryResultStatement(String dataverseName,
+				String datasetName, Query query, int varCounter) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.query = query;
+			this.varCounter = varCounter;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public int getVarCounter() {
+			return varCounter;
+		}
+
+		public Query getQuery() {
+			return query;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.WRITE_FROM_QUERY_RESULT;
+		}
+
+	}
+
+	public static class CompiledDatasetDropStatement implements
+			ICompiledStatement {
+		private final String dataverseName;
+		private final String datasetName;
+
+		public CompiledDatasetDropStatement(String dataverseName,
+				String datasetName) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.DATASET_DROP;
+		}
+	}
+
+	// added by yasser
+	public static class CompiledCreateDataverseStatement implements
+			ICompiledStatement {
+		private String dataverseName;
+		private String format;
+
+		public CompiledCreateDataverseStatement(String dataverseName,
+				String format) {
+			this.dataverseName = dataverseName;
+			this.format = format;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getFormat() {
+			return format;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.CREATE_DATAVERSE;
+		}
+	}
+
+	public static class CompiledNodeGroupDropStatement implements
+			ICompiledStatement {
+		private String nodeGroupName;
+
+		public CompiledNodeGroupDropStatement(String nodeGroupName) {
+			this.nodeGroupName = nodeGroupName;
+		}
+
+		public String getNodeGroupName() {
+			return nodeGroupName;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.NODEGROUP_DROP;
+		}
+	}
+
+	public static class CompiledIndexDropStatement implements
+			ICompiledStatement {
+		private String dataverseName;
+		private String datasetName;
+		private String indexName;
+
+		public CompiledIndexDropStatement(String dataverseName,
+				String datasetName, String indexName) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.indexName = indexName;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public String getIndexName() {
+			return indexName;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.INDEX_DROP;
+		}
+	}
+
+	public static class CompiledDataverseDropStatement implements
+			ICompiledStatement {
+		private String dataverseName;
+		private boolean ifExists;
+
+		public CompiledDataverseDropStatement(String dataverseName,
+				boolean ifExists) {
+			this.dataverseName = dataverseName;
+			this.ifExists = ifExists;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public boolean getIfExists() {
+			return ifExists;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.DATAVERSE_DROP;
+		}
+	}
+
+	public static class CompiledTypeDropStatement implements ICompiledStatement {
+		private String typeName;
+
+		public CompiledTypeDropStatement(String nodeGroupName) {
+			this.typeName = nodeGroupName;
+		}
+
+		public String getTypeName() {
+			return typeName;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.TYPE_DROP;
+		}
+	}
+
+	public static interface ICompiledDmlStatement extends ICompiledStatement {
+
+		public String getDataverseName();
+
+		public String getDatasetName();
+	}
+
+	public static class CompiledCreateIndexStatement implements
+			ICompiledDmlStatement {
+		private final String indexName;
+		private final String dataverseName;
+		private final String datasetName;
+		private final List<String> keyFields;
+		private final IndexType indexType;
+
+		// Specific to NGram index.
+		private final int gramLength;
+
+		public CompiledCreateIndexStatement(String indexName,
+				String dataverseName, String datasetName,
+				List<String> keyFields, int gramLength, IndexType indexType) {
+			this.indexName = indexName;
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.keyFields = keyFields;
+			this.gramLength = gramLength;
+			this.indexType = indexType;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getIndexName() {
+			return indexName;
+		}
+
+		public List<String> getKeyFields() {
+			return keyFields;
+		}
+
+		public IndexType getIndexType() {
+			return indexType;
+		}
+
+		public int getGramLength() {
+			return gramLength;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.CREATE_INDEX;
+		}
+	}
+
+	public static class CompiledLoadFromFileStatement implements
+			ICompiledDmlStatement {
+		private String dataverseName;
+		private String datasetName;
+		private boolean alreadySorted;
+		private String adapter;
+		private Map<String, String> properties;
+
+		public CompiledLoadFromFileStatement(String dataverseName,
+				String datasetName, String adapter,
+				Map<String, String> properties, boolean alreadySorted) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.alreadySorted = alreadySorted;
+			this.adapter = adapter;
+			this.properties = properties;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public boolean alreadySorted() {
+			return alreadySorted;
+		}
+
+		public String getAdapter() {
+			return adapter;
+		}
+
+		public Map<String, String> getProperties() {
+			return properties;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.LOAD_FROM_FILE;
+		}
+	}
+
+	public static class CompiledInsertStatement implements
+			ICompiledDmlStatement {
+		private final String dataverseName;
+		private final String datasetName;
+		private final Query query;
+		private final int varCounter;
+
+		public CompiledInsertStatement(String dataverseName,
+				String datasetName, Query query, int varCounter) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.query = query;
+			this.varCounter = varCounter;
+		}
+
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public int getVarCounter() {
+			return varCounter;
+		}
+
+		public Query getQuery() {
+			return query;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.INSERT;
+		}
+	}
+
+	public static class CompiledBeginFeedStatement implements
+			ICompiledDmlStatement {
+		private String dataverseName;
+		private String datasetName;
+		private Query query;
+		private int varCounter;
+
+		public CompiledBeginFeedStatement(String dataverseName,
+				String datasetName, Query query, int varCounter) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.query = query;
+			this.varCounter = varCounter;
+		}
+
+		@Override
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		@Override
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public int getVarCounter() {
+			return varCounter;
+		}
+
+		public Query getQuery() {
+			return query;
+		}
+
+		public void setQuery(Query query) {
+			this.query = query;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.BEGIN_FEED;
+		}
+	}
+
+	public static class CompiledControlFeedStatement implements
+			ICompiledDmlStatement {
+		private String dataverseName;
+		private String datasetName;
+		private OperationType operationType;
+		private Query query;
+		private int varCounter;
+		private Map<String, String> alteredParams;
+
+		public CompiledControlFeedStatement(OperationType operationType,
+				String dataverseName, String datasetName,
+				Map<String, String> alteredParams) {
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.operationType = operationType;
+			this.alteredParams = alteredParams;
+		}
+
+		@Override
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		@Override
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		public OperationType getOperationType() {
+			return operationType;
+		}
+
+		public int getVarCounter() {
+			return varCounter;
+		}
+
+		public Query getQuery() {
+			return query;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.CONTROL_FEED;
+		}
+
+		public Map<String, String> getProperties() {
+			return alteredParams;
+		}
+
+		public void setProperties(Map<String, String> properties) {
+			this.alteredParams = properties;
+		}
+	}
+
+	public static class CompiledDeleteStatement implements
+			ICompiledDmlStatement {
+		private VariableExpr var;
+		private String dataverseName;
+		private String datasetName;
+		private Expression condition;
+		private Clause dieClause;
+		private int varCounter;
+		private AqlMetadataProvider metadataProvider;
+
+		public CompiledDeleteStatement(VariableExpr var, String dataverseName,
+				String datasetName, Expression condition, Clause dieClause,
+				int varCounter, AqlMetadataProvider metadataProvider) {
+			this.var = var;
+			this.dataverseName = dataverseName;
+			this.datasetName = datasetName;
+			this.condition = condition;
+			this.dieClause = dieClause;
+			this.varCounter = varCounter;
+			this.metadataProvider = metadataProvider;
+		}
+
+		@Override
+		public String getDatasetName() {
+			return datasetName;
+		}
+
+		@Override
+		public String getDataverseName() {
+			return dataverseName;
+		}
+
+		public int getVarCounter() {
+			return varCounter;
+		}
+
+		public Expression getCondition() {
+			return condition;
+		}
+
+		public Clause getDieClause() {
+			return dieClause;
+		}
+
+		public Query getQuery() throws AlgebricksException {
+
+			List<Expression> arguments = new ArrayList<Expression>();
+			String arg = dataverseName == null ? datasetName : dataverseName
+					+ "." + datasetName;
+			LiteralExpr argumentLiteral = new LiteralExpr(
+					new StringLiteral(arg));
+			arguments.add(argumentLiteral);
+
+			CallExpr callExpression = new CallExpr(new FunctionSignature(
+					FunctionConstants.ASTERIX_NS, "dataset", 1), arguments);
+			List<Clause> clauseList = new ArrayList<Clause>();
+			Clause forClause = new ForClause(var, callExpression);
+			clauseList.add(forClause);
+			Clause whereClause = null;
+			if (condition != null) {
+				whereClause = new WhereClause(condition);
+				clauseList.add(whereClause);
+			}
+			if (dieClause != null) {
+				clauseList.add(dieClause);
+			}
+
+			Dataset dataset = metadataProvider.findDataset(dataverseName,
+					datasetName);
+			if (dataset == null) {
+				throw new AlgebricksException("Unknown dataset " + datasetName);
+			}
+			String itemTypeName = dataset.getItemTypeName();
+			IAType itemType = metadataProvider.findType(
+					dataset.getDataverseName(), itemTypeName);
+			ARecordType recType = (ARecordType) itemType;
+			String[] fieldNames = recType.getFieldNames();
+			List<FieldBinding> fieldBindings = new ArrayList<FieldBinding>();
+			for (int i = 0; i < fieldNames.length; i++) {
+				FieldAccessor fa = new FieldAccessor(var, new Identifier(
+						fieldNames[i]));
+				FieldBinding fb = new FieldBinding(new LiteralExpr(
+						new StringLiteral(fieldNames[i])), fa);
+				fieldBindings.add(fb);
+			}
+			RecordConstructor rc = new RecordConstructor(fieldBindings);
+
+			FLWOGRExpression flowgr = new FLWOGRExpression(clauseList, rc);
+			Query query = new Query();
+			query.setBody(flowgr);
+			return query;
+		}
+
+		@Override
+		public Kind getKind() {
+			return Kind.DELETE;
+		}
+
+	}
+
+}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
index e010d3c..bf2b64a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
@@ -1,21 +1,23 @@
 package edu.uci.ics.asterix.translator;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 import edu.uci.ics.asterix.aql.literal.DoubleLiteral;
 import edu.uci.ics.asterix.aql.literal.FloatLiteral;
 import edu.uci.ics.asterix.aql.literal.IntegerLiteral;
+import edu.uci.ics.asterix.aql.literal.LongIntegerLiteral;
 import edu.uci.ics.asterix.aql.literal.StringLiteral;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.base.IAObject;
 
 public final class ConstantHelper {
 
-    public static IAObject objectFromLiteral(ILiteral valLiteral) {
+    public static IAObject objectFromLiteral(Literal valLiteral) {
         switch (valLiteral.getLiteralType()) {
             case DOUBLE: {
                 DoubleLiteral d = (DoubleLiteral) valLiteral;
@@ -32,6 +34,10 @@
                 IntegerLiteral il = (IntegerLiteral) valLiteral;
                 return new AInt32(il.getValue());
             }
+            case LONG: {
+                LongIntegerLiteral il = (LongIntegerLiteral) valLiteral;
+                return new AInt64(il.getValue());                
+            }
             case NULL: {
                 return ANull.NULL;
             }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java
deleted file mode 100644
index 9e2150c..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java
+++ /dev/null
@@ -1,453 +0,0 @@
-package edu.uci.ics.asterix.translator;
-
-import java.rmi.RemoteException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.aql.base.Clause;
-import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.Statement;
-import edu.uci.ics.asterix.aql.base.Statement.Kind;
-import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
-import edu.uci.ics.asterix.aql.expression.CallExpr;
-import edu.uci.ics.asterix.aql.expression.ControlFeedStatement;
-import edu.uci.ics.asterix.aql.expression.CreateIndexStatement;
-import edu.uci.ics.asterix.aql.expression.DeleteStatement;
-import edu.uci.ics.asterix.aql.expression.FLWOGRExpression;
-import edu.uci.ics.asterix.aql.expression.FieldAccessor;
-import edu.uci.ics.asterix.aql.expression.FieldBinding;
-import edu.uci.ics.asterix.aql.expression.ForClause;
-import edu.uci.ics.asterix.aql.expression.Identifier;
-import edu.uci.ics.asterix.aql.expression.InsertStatement;
-import edu.uci.ics.asterix.aql.expression.LiteralExpr;
-import edu.uci.ics.asterix.aql.expression.LoadFromFileStatement;
-import edu.uci.ics.asterix.aql.expression.Query;
-import edu.uci.ics.asterix.aql.expression.RecordConstructor;
-import edu.uci.ics.asterix.aql.expression.VariableExpr;
-import edu.uci.ics.asterix.aql.expression.WhereClause;
-import edu.uci.ics.asterix.aql.expression.WriteFromQueryResultStatement;
-import edu.uci.ics.asterix.aql.expression.ControlFeedStatement.OperationType;
-import edu.uci.ics.asterix.aql.literal.StringLiteral;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
-import edu.uci.ics.asterix.metadata.IDatasetDetails;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.entities.Dataset;
-import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public class DmlTranslator extends AbstractAqlTranslator {
-
-    private final MetadataTransactionContext mdTxnCtx;
-    private final List<Statement> aqlStatements;
-    private AqlCompiledMetadataDeclarations compiledDeclarations;
-    private List<ICompiledDmlStatement> compiledDmlStatements;
-
-    public DmlTranslator(MetadataTransactionContext mdTxnCtx, List<Statement> aqlStatements) {
-        this.mdTxnCtx = mdTxnCtx;
-        this.aqlStatements = aqlStatements;
-    }
-
-    public void translate() throws AlgebricksException, RemoteException, ACIDException, MetadataException {
-        compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, true);
-        compiledDmlStatements = compileDmlStatements();
-    }
-
-    public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
-        return compiledDeclarations;
-    }
-
-    public List<ICompiledDmlStatement> getCompiledDmlStatements() {
-        return compiledDmlStatements;
-    }
-
-    private List<ICompiledDmlStatement> compileDmlStatements() throws AlgebricksException {
-        List<ICompiledDmlStatement> dmlStatements = new ArrayList<ICompiledDmlStatement>();
-        for (Statement stmt : aqlStatements) {
-            validateOperation(compiledDeclarations, stmt);
-            switch (stmt.getKind()) {
-                case LOAD_FROM_FILE: {
-                    LoadFromFileStatement st1 = (LoadFromFileStatement) stmt;
-                    CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(st1.getDatasetName()
-                            .getValue(), st1.getAdapter(), st1.getProperties(), st1.dataIsAlreadySorted());
-                    dmlStatements.add(cls);
-                    break;
-                }
-                case WRITE_FROM_QUERY_RESULT: {
-                    WriteFromQueryResultStatement st1 = (WriteFromQueryResultStatement) stmt;
-                    CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(st1
-                            .getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
-                    dmlStatements.add(clfrqs);
-                    break;
-                }
-                case CREATE_INDEX: {
-                    CreateIndexStatement cis = (CreateIndexStatement) stmt;
-                    if (cis.getNeedToCreate()) {
-                        CompiledCreateIndexStatement ccis = new CompiledCreateIndexStatement(cis.getIndexName()
-                                .getValue(), cis.getDatasetName().getValue(), cis.getFieldExprs(), cis.getIndexType());
-                        dmlStatements.add(ccis);
-                    }
-                    break;
-                }
-                case INSERT: {
-                    InsertStatement is = (InsertStatement) stmt;
-                    CompiledInsertStatement clfrqs = new CompiledInsertStatement(is.getDatasetName().getValue(), is
-                            .getQuery(), is.getVarCounter());
-                    dmlStatements.add(clfrqs);
-                    break;
-                }
-                case DELETE: {
-                    DeleteStatement ds = (DeleteStatement) stmt;
-                    CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(ds.getVariableExpr(), ds
-                            .getDatasetName(), ds.getCondition(), ds.getDieClause(), ds.getVarCounter(),
-                            compiledDeclarations);
-                    dmlStatements.add(clfrqs);
-                    break;
-                }
-
-                case BEGIN_FEED: {
-                    BeginFeedStatement bfs = (BeginFeedStatement) stmt;
-                    CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(bfs.getDatasetName(), bfs
-                            .getQuery(), bfs.getVarCounter());
-                    dmlStatements.add(cbfs);
-                    Dataset dataset;
-                    try {
-                        dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), bfs.getDatasetName().getValue());
-                    } catch (MetadataException me) {
-                        throw new AlgebricksException(me);
-                    }
-                    IDatasetDetails datasetDetails = dataset.getDatasetDetails();
-                    if (datasetDetails.getDatasetType() != DatasetType.FEED) {
-                        throw new IllegalArgumentException("Dataset " + bfs.getDatasetName().getValue()
-                                + " is not a feed dataset");
-                    }
-                    bfs.initialize((FeedDatasetDetails) datasetDetails);
-                    cbfs.setQuery(bfs.getQuery());
-                    break;
-                }
-
-                case CONTROL_FEED: {
-                    ControlFeedStatement cfs = (ControlFeedStatement) stmt;
-                    CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(), cfs
-                            .getDatasetName(), cfs.getAlterAdapterConfParams());
-                    dmlStatements.add(clcfs);
-                    break;
-
-                }
-            }
-        }
-        return dmlStatements;
-    }
-
-    public static interface ICompiledDmlStatement {
-
-        public abstract Kind getKind();
-    }
-
-    public static class CompiledCreateIndexStatement implements ICompiledDmlStatement {
-        private String indexName;
-        private String datasetName;
-        private List<String> keyFields;
-        private IndexType indexType;
-
-        public CompiledCreateIndexStatement(String indexName, String datasetName, List<String> keyFields,
-                IndexType indexType) {
-            this.indexName = indexName;
-            this.datasetName = datasetName;
-            this.keyFields = keyFields;
-            this.indexType = indexType;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public String getIndexName() {
-            return indexName;
-        }
-
-        public List<String> getKeyFields() {
-            return keyFields;
-        }
-
-        public IndexType getIndexType() {
-            return indexType;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.CREATE_INDEX;
-        }
-    }
-
-    public static class CompiledLoadFromFileStatement implements ICompiledDmlStatement {
-        private String datasetName;
-        private boolean alreadySorted;
-        private String adapter;
-        private Map<String, String> properties;
-
-        public CompiledLoadFromFileStatement(String datasetName, String adapter, Map<String, String> properties,
-                boolean alreadySorted) {
-            this.datasetName = datasetName;
-            this.alreadySorted = alreadySorted;
-            this.adapter = adapter;
-            this.properties = properties;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public boolean alreadySorted() {
-            return alreadySorted;
-        }
-
-        public String getAdapter() {
-            return adapter;
-        }
-
-        public Map<String, String> getProperties() {
-            return properties;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.LOAD_FROM_FILE;
-        }
-    }
-
-    public static class CompiledWriteFromQueryResultStatement implements ICompiledDmlStatement {
-
-        private String datasetName;
-        private Query query;
-        private int varCounter;
-
-        public CompiledWriteFromQueryResultStatement(String datasetName, Query query, int varCounter) {
-            this.datasetName = datasetName;
-            this.query = query;
-            this.varCounter = varCounter;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.WRITE_FROM_QUERY_RESULT;
-        }
-
-    }
-
-    public static class CompiledInsertStatement implements ICompiledDmlStatement {
-        private String datasetName;
-        private Query query;
-        private int varCounter;
-
-        public CompiledInsertStatement(String datasetName, Query query, int varCounter) {
-            this.datasetName = datasetName;
-            this.query = query;
-            this.varCounter = varCounter;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.INSERT;
-        }
-    }
-
-    public static class CompiledBeginFeedStatement implements ICompiledDmlStatement {
-        private Identifier datasetName;
-        private Query query;
-        private int varCounter;
-
-        public CompiledBeginFeedStatement(Identifier datasetName, Query query, int varCounter) {
-            this.datasetName = datasetName;
-            this.query = query;
-            this.varCounter = varCounter;
-        }
-
-        public Identifier getDatasetName() {
-            return datasetName;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        public void setQuery(Query query) {
-            this.query = query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.BEGIN_FEED;
-        }
-    }
-
-    public static class CompiledControlFeedStatement implements ICompiledDmlStatement {
-        private Identifier datasetName;
-        private OperationType operationType;
-        private Query query;
-        private int varCounter;
-        private Map<String, String> alteredParams;
-
-        public CompiledControlFeedStatement(OperationType operationType, Identifier datasetName,
-                Map<String, String> alteredParams) {
-            this.datasetName = datasetName;
-            this.operationType = operationType;
-            this.alteredParams = alteredParams;
-        }
-
-        public Identifier getDatasetName() {
-            return datasetName;
-        }
-
-        public OperationType getOperationType() {
-            return operationType;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.CONTROL_FEED;
-        }
-
-        public Map<String, String> getProperties() {
-            return alteredParams;
-        }
-
-        public void setProperties(Map<String, String> properties) {
-            this.alteredParams = properties;
-        }
-    }
-
-    public static class CompiledDeleteStatement implements ICompiledDmlStatement {
-        private VariableExpr var;
-        private Identifier dataset;
-        private Expression condition;
-        private Clause dieClause;
-        private int varCounter;
-        private AqlCompiledMetadataDeclarations compiledDeclarations;
-
-        public CompiledDeleteStatement(VariableExpr var, Identifier dataset, Expression condition, Clause dieClause,
-                int varCounter, AqlCompiledMetadataDeclarations compiledDeclarations) {
-            this.var = var;
-            this.dataset = dataset;
-            this.condition = condition;
-            this.dieClause = dieClause;
-            this.varCounter = varCounter;
-            this.compiledDeclarations = compiledDeclarations;
-        }
-
-        public Identifier getDataset() {
-            return dataset;
-        }
-
-        public String getDatasetName() {
-            return dataset.getValue();
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Expression getCondition() {
-            return condition;
-        }
-
-        public Clause getDieClause() {
-            return dieClause;
-        }
-
-        public Query getQuery() throws AlgebricksException {
-            String datasetName = dataset.getValue();
-
-            List<Expression> arguments = new ArrayList<Expression>();
-            LiteralExpr argumentLiteral = new LiteralExpr(new StringLiteral(datasetName));
-            arguments.add(argumentLiteral);
-
-            CallExpr callExpression = new CallExpr(new AsterixFunction("dataset", 1), arguments);
-            List<Clause> clauseList = new ArrayList<Clause>();
-            Clause forClause = new ForClause(var, callExpression);
-            clauseList.add(forClause);
-            Clause whereClause = null;
-            if (condition != null) {
-                whereClause = new WhereClause(condition);
-                clauseList.add(whereClause);
-            }
-            if (dieClause != null) {
-                clauseList.add(dieClause);
-            }
-
-            AqlCompiledDatasetDecl aqlDataset = compiledDeclarations.findDataset(datasetName);
-            if (aqlDataset == null) {
-                throw new AlgebricksException("Unknown dataset " + datasetName);
-            }
-            String itemTypeName = aqlDataset.getItemTypeName();
-            IAType itemType = compiledDeclarations.findType(itemTypeName);
-            ARecordType recType = (ARecordType) itemType;
-            String[] fieldNames = recType.getFieldNames();
-            List<FieldBinding> fieldBindings = new ArrayList<FieldBinding>();
-            for (int i = 0; i < fieldNames.length; i++) {
-                FieldAccessor fa = new FieldAccessor(var, new Identifier(fieldNames[i]));
-                FieldBinding fb = new FieldBinding(new LiteralExpr(new StringLiteral(fieldNames[i])), fa);
-                fieldBindings.add(fb);
-            }
-            RecordConstructor rc = new RecordConstructor(fieldBindings);
-
-            FLWOGRExpression flowgr = new FLWOGRExpression(clauseList, rc);
-            Query query = new Query();
-            query.setBody(flowgr);
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.DELETE;
-        }
-
-    }
-
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java
deleted file mode 100644
index 5935efd..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java
+++ /dev/null
@@ -1,373 +0,0 @@
-package edu.uci.ics.asterix.translator;
-
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-
-import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition.RecordKind;
-import edu.uci.ics.asterix.aql.expression.TypeDecl;
-import edu.uci.ics.asterix.aql.expression.TypeExpression;
-import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
-import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
-import edu.uci.ics.asterix.common.annotations.IRecordFieldDataGen;
-import edu.uci.ics.asterix.common.annotations.RecordDataGenAnnotation;
-import edu.uci.ics.asterix.common.annotations.TypeDataGen;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
-import edu.uci.ics.asterix.metadata.entities.Datatype;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.types.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IAWriterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-
-public final class MetadataDeclTranslator {
-    private final MetadataTransactionContext mdTxnCtx;
-    private final String dataverseName;
-    private final List<TypeDecl> typeDeclarations;
-    private final FileSplit outputFile;
-    private final Map<String, String> config;
-    private final IAWriterFactory writerFactory;
-
-    public MetadataDeclTranslator(MetadataTransactionContext mdTxnCtx, String dataverseName, FileSplit outputFile,
-            IAWriterFactory writerFactory, Map<String, String> config, List<TypeDecl> typeDeclarations) {
-        this.mdTxnCtx = mdTxnCtx;
-        this.dataverseName = dataverseName;
-        this.outputFile = outputFile;
-        this.writerFactory = writerFactory;
-        this.config = config;
-        this.typeDeclarations = typeDeclarations;
-    }
-
-    // TODO: Should this not throw an AsterixException?
-    public AqlCompiledMetadataDeclarations computeMetadataDeclarations(boolean online) throws AlgebricksException,
-            MetadataException {
-        Map<String, TypeDataGen> typeDataGenMap = new HashMap<String, TypeDataGen>();
-        for (TypeDecl td : typeDeclarations) {
-            TypeDataGen tdg = td.getDatagenAnnotation();
-            if (tdg != null) {
-                typeDataGenMap.put(td.getIdent().getValue(), tdg);
-            }
-        }
-        Map<String, IAType> typeMap = computeTypes();
-        Map<String, String[]> stores = AsterixProperties.INSTANCE.getStores();
-        return new AqlCompiledMetadataDeclarations(mdTxnCtx, dataverseName, outputFile, config, stores, typeMap,
-                typeDataGenMap, writerFactory, online);
-    }
-
-    private Map<String, IAType> computeTypes() throws AlgebricksException, MetadataException {
-        Map<String, IAType> typeMap = new HashMap<String, IAType>();
-        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
-        Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
-        Map<String, List<String>> incompleteTopLevelTypeReferences = new HashMap<String, List<String>>();
-
-        firstPass(typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-        secondPass(typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-        return typeMap;
-    }
-
-    private void secondPass(Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException, MetadataException {
-        // solve remaining top level references
-        for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
-            IAType t = typeMap.get(trefName);
-            if (t == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            }
-            for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
-                typeMap.put(tname, t);
-            }
-        }
-        // solve remaining field type references
-        for (String trefName : incompleteFieldTypes.keySet()) {
-            IAType t = typeMap.get(trefName);
-            if (t == null) {
-                // Try to get type from the metadata manager.
-                Datatype metadataDataType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, trefName);
-                if (metadataDataType == null) {
-                    throw new AlgebricksException("Could not resolve type " + trefName);
-                }
-                t = metadataDataType.getDatatype();
-                typeMap.put(trefName, t);
-            }
-            Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes.get(trefName);
-            for (ARecordType recType : fieldsToFix.keySet()) {
-                List<Integer> positions = fieldsToFix.get(recType);
-                IAType[] fldTypes = recType.getFieldTypes();
-                for (Integer pos : positions) {
-                    if (fldTypes[pos] == null) {
-                        fldTypes[pos] = t;
-                    } else { // nullable
-                        AUnionType nullableUnion = (AUnionType) fldTypes[pos];
-                        nullableUnion.setTypeAtIndex(t, 1);
-                    }
-                }
-            }
-        }
-        // solve remaining item type references
-        for (String trefName : incompleteItemTypes.keySet()) {
-            IAType t = typeMap.get(trefName);
-            if (t == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            }
-            for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
-                act.setItemType(t);
-            }
-        }
-    }
-
-    private void firstPass(Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException {
-        for (TypeDecl td : typeDeclarations) {
-            TypeExpression texpr = td.getTypeDef();
-            String tdname = td.getIdent().getValue();
-            if (AsterixBuiltinTypeMap.getBuiltinTypes().get(tdname) != null) {
-                throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
-            }
-            switch (texpr.getTypeKind()) {
-                case TYPEREFERENCE: {
-                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                    IAType t = solveTypeReference(tre, typeMap);
-                    if (t != null) {
-                        typeMap.put(tdname, t);
-                    } else {
-                        addIncompleteTopLevelTypeReference(tdname, tre, incompleteTopLevelTypeReferences);
-                    }
-                    break;
-                }
-                case RECORD: {
-                    RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
-                    ARecordType recType = computeRecordType(tdname, rtd, typeMap, incompleteFieldTypes,
-                            incompleteItemTypes);
-                    typeMap.put(tdname, recType);
-                    break;
-                }
-                case ORDEREDLIST: {
-                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                    AOrderedListType olType = computeOrderedListType(tdname, oltd, typeMap, incompleteItemTypes,
-                            incompleteFieldTypes);
-                    typeMap.put(tdname, olType);
-                    break;
-                }
-                case UNORDEREDLIST: {
-                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                    AUnorderedListType ulType = computeUnorderedListType(tdname, ultd, typeMap, incompleteItemTypes,
-                            incompleteFieldTypes);
-                    typeMap.put(tdname, ulType);
-                    break;
-                }
-                default: {
-                    throw new IllegalStateException();
-                }
-            }
-        }
-    }
-
-    private AOrderedListType computeOrderedListType(String typeName, OrderedListTypeDefinition oltd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = oltd.getItemTypeExpression();
-        AOrderedListType aolt = new AOrderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, aolt);
-        return aolt;
-    }
-
-    private AUnorderedListType computeUnorderedListType(String typeName, UnorderedListTypeDefinition ultd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = ultd.getItemTypeExpression();
-        AUnorderedListType ault = new AUnorderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, ault);
-        return ault;
-    }
-
-    private void setCollectionItemType(TypeExpression tExpr, Map<String, IAType> typeMap,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, AbstractCollectionType act) {
-        switch (tExpr.getTypeKind()) {
-            case ORDEREDLIST: {
-                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
-                IAType t = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case UNORDEREDLIST: {
-                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
-                IAType t = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case RECORD: {
-                RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
-                IAType t = computeRecordType(null, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                act.setItemType(t);
-                break;
-            }
-            case TYPEREFERENCE: {
-                TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
-                IAType tref = solveTypeReference(tre, typeMap);
-                if (tref != null) {
-                    act.setItemType(tref);
-                } else {
-                    addIncompleteCollectionTypeReference(act, tre, incompleteItemTypes);
-                }
-                break;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-    }
-
-    private ARecordType computeRecordType(String typeName, RecordTypeDefinition rtd, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        List<String> names = rtd.getFieldNames();
-        int n = names.size();
-        String[] fldNames = new String[n];
-        IAType[] fldTypes = new IAType[n];
-        int i = 0;
-        for (String s : names) {
-            fldNames[i++] = s;
-        }
-        boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
-        ARecordType recType = new ARecordType(typeName, fldNames, fldTypes, isOpen);
-
-        List<IRecordFieldDataGen> fieldDataGen = rtd.getFieldDataGen();
-        if (fieldDataGen.size() == n) {
-            IRecordFieldDataGen[] rfdg = new IRecordFieldDataGen[n];
-            rfdg = fieldDataGen.toArray(rfdg);
-            recType.getAnnotations().add(new RecordDataGenAnnotation(rfdg, rtd.getUndeclaredFieldsDataGen()));
-        }
-
-        for (int j = 0; j < n; j++) {
-            TypeExpression texpr = rtd.getFieldTypes().get(j);
-            switch (texpr.getTypeKind()) {
-                case TYPEREFERENCE: {
-                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                    IAType tref = solveTypeReference(tre, typeMap);
-                    if (tref != null) {
-                        if (!rtd.getNullableFields().get(j)) { // not nullable
-                            fldTypes[j] = tref;
-                        } else { // nullable
-                            fldTypes[j] = makeUnionWithNull(null, tref);
-                        }
-                    } else {
-                        addIncompleteFieldTypeReference(recType, j, tre, incompleteFieldTypes);
-                        if (rtd.getNullableFields().get(j)) {
-                            fldTypes[j] = makeUnionWithNull(null, null);
-                        }
-                    }
-                    break;
-                }
-                case RECORD: {
-                    RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
-                    IAType t2 = computeRecordType(null, recTypeDef2, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                    if (!rtd.getNullableFields().get(j)) { // not nullable
-                        fldTypes[j] = t2;
-                    } else { // nullable
-                        fldTypes[j] = makeUnionWithNull(null, t2);
-                    }
-                    break;
-                }
-                case ORDEREDLIST: {
-                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                    IAType t2 = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                case UNORDEREDLIST: {
-                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                    IAType t2 = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                default: {
-                    throw new IllegalStateException();
-                }
-            }
-
-        }
-
-        return recType;
-    }
-
-    private AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
-        ArrayList<IAType> unionList = new ArrayList<IAType>(2);
-        unionList.add(BuiltinType.ANULL);
-        unionList.add(type);
-        return new AUnionType(unionList, unionTypeName);
-    }
-
-    private void addIncompleteCollectionTypeReference(AbstractCollectionType collType, TypeReferenceExpression tre,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        String typeName = tre.getIdent().getValue();
-        List<AbstractCollectionType> typeList = incompleteItemTypes.get(typeName);
-        if (typeList == null) {
-            typeList = new LinkedList<AbstractCollectionType>();
-            incompleteItemTypes.put(typeName, typeList);
-        }
-        typeList.add(collType);
-    }
-
-    private void addIncompleteFieldTypeReference(ARecordType recType, int fldPosition, TypeReferenceExpression tre,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        String typeName = tre.getIdent().getValue();
-        Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes.get(typeName);
-        if (refMap == null) {
-            refMap = new HashMap<ARecordType, List<Integer>>();
-            incompleteFieldTypes.put(typeName, refMap);
-        }
-        List<Integer> typeList = refMap.get(recType);
-        if (typeList == null) {
-            typeList = new ArrayList<Integer>();
-            refMap.put(recType, typeList);
-        }
-        typeList.add(fldPosition);
-    }
-
-    private void addIncompleteTopLevelTypeReference(String tdeclName, TypeReferenceExpression tre,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) {
-        String name = tre.getIdent().getValue();
-        List<String> refList = incompleteTopLevelTypeReferences.get(name);
-        if (refList == null) {
-            refList = new LinkedList<String>();
-            incompleteTopLevelTypeReferences.put(name, refList);
-        }
-        refList.add(tdeclName);
-    }
-
-    private IAType solveTypeReference(TypeReferenceExpression tre, Map<String, IAType> typeMap) {
-        String name = tre.getIdent().getValue();
-        IAType builtin = AsterixBuiltinTypeMap.getBuiltinTypes().get(name);
-        if (builtin != null) {
-            return builtin;
-        } else {
-            return typeMap.get(name);
-        }
-    }
-}
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/TypeTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/TypeTranslator.java
new file mode 100644
index 0000000..5abbd91
--- /dev/null
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/TypeTranslator.java
@@ -0,0 +1,400 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.translator;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
+import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition;
+import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition.RecordKind;
+import edu.uci.ics.asterix.aql.expression.TypeDecl;
+import edu.uci.ics.asterix.aql.expression.TypeExpression;
+import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
+import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
+import edu.uci.ics.asterix.common.annotations.IRecordFieldDataGen;
+import edu.uci.ics.asterix.common.annotations.RecordDataGenAnnotation;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
+import edu.uci.ics.asterix.metadata.entities.Datatype;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeSignature;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+
+public class TypeTranslator {
+
+    public static Map<TypeSignature, IAType> computeTypes(MetadataTransactionContext mdTxnCtx, TypeDecl tDec,
+            String defaultDataverse) throws AlgebricksException, MetadataException {
+        Map<TypeSignature, IAType> typeMap = new HashMap<TypeSignature, IAType>();
+        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
+        Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<TypeSignature, List<AbstractCollectionType>>();
+        Map<TypeSignature, List<TypeSignature>> incompleteTopLevelTypeReferences = new HashMap<TypeSignature, List<TypeSignature>>();
+        String typeDataverse = tDec.getDataverseName() == null ? defaultDataverse : tDec.getDataverseName().getValue();
+        firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences,
+                typeDataverse);
+        secondPass(mdTxnCtx, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences,
+                typeDataverse);
+
+        return typeMap;
+    }
+
+    public static Map<TypeSignature, IAType> computeTypes(MetadataTransactionContext mdTxnCtx, TypeDecl tDec,
+            String defaultDataverse, Map<TypeSignature, IAType> typeMap) throws AlgebricksException, MetadataException {
+        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
+        Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<TypeSignature, List<AbstractCollectionType>>();
+        Map<TypeSignature, List<TypeSignature>> incompleteTopLevelTypeReferences = new HashMap<TypeSignature, List<TypeSignature>>();
+        String typeDataverse = tDec.getDataverseName() == null ? defaultDataverse : tDec.getDataverseName().getValue();
+        firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences,
+                typeDataverse);
+        secondPass(mdTxnCtx, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences,
+                typeDataverse);
+
+        return typeMap;
+    }
+
+    private static Map<String, BuiltinType> builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
+
+    private static void firstPass(TypeDecl td, Map<TypeSignature, IAType> typeMap,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<TypeSignature, List<TypeSignature>> incompleteTopLevelTypeReferences, String typeDataverse)
+            throws AlgebricksException {
+
+        TypeExpression texpr = td.getTypeDef();
+        String tdname = td.getIdent().getValue();
+        if (builtinTypeMap.get(tdname) != null) {
+            throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
+        }
+        TypeSignature typeSignature = new TypeSignature(typeDataverse, tdname);
+        try {
+            switch (texpr.getTypeKind()) {
+                case TYPEREFERENCE: {
+                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
+                    IAType t = solveTypeReference(typeSignature, typeMap);
+                    if (t != null) {
+                        typeMap.put(typeSignature, t);
+                    } else {
+                        addIncompleteTopLevelTypeReference(tdname, tre, incompleteTopLevelTypeReferences, typeDataverse);
+                    }
+                    break;
+                }
+                case RECORD: {
+                    RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
+                    ARecordType recType = computeRecordType(typeSignature, rtd, typeMap, incompleteFieldTypes,
+                            incompleteItemTypes, typeDataverse);
+                    typeMap.put(typeSignature, recType);
+                    break;
+                }
+                case ORDEREDLIST: {
+                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
+                    AOrderedListType olType = computeOrderedListType(typeSignature, oltd, typeMap, incompleteItemTypes,
+                            incompleteFieldTypes, typeDataverse);
+                    typeMap.put(typeSignature, olType);
+                    break;
+                }
+                case UNORDEREDLIST: {
+                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
+                    AUnorderedListType ulType = computeUnorderedListType(typeSignature, ultd, typeMap,
+                            incompleteItemTypes, incompleteFieldTypes, typeDataverse);
+                    typeMap.put(typeSignature, ulType);
+                    break;
+                }
+                default: {
+                    throw new IllegalStateException();
+                }
+            }
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    private static void secondPass(MetadataTransactionContext mdTxnCtx, Map<TypeSignature, IAType> typeMap,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<TypeSignature, List<TypeSignature>> incompleteTopLevelTypeReferences, String typeDataverse)
+            throws AlgebricksException, MetadataException {
+        // solve remaining top level references
+
+        for (TypeSignature typeSignature : incompleteTopLevelTypeReferences.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, typeSignature.getNamespace(),
+                    typeSignature.getName());
+            if (dt == null) {
+                throw new AlgebricksException("Could not resolve type " + typeSignature);
+            } else
+                t = dt.getDatatype();
+            for (TypeSignature sign : incompleteTopLevelTypeReferences.get(typeSignature)) {
+                typeMap.put(sign, t);
+            }
+        }
+        // solve remaining field type references
+        for (String trefName : incompleteFieldTypes.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, typeDataverse, trefName);
+            if (dt == null) {
+                throw new AlgebricksException("Could not resolve type " + trefName);
+            } else
+                t = dt.getDatatype();
+            Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes.get(trefName);
+            for (ARecordType recType : fieldsToFix.keySet()) {
+                List<Integer> positions = fieldsToFix.get(recType);
+                IAType[] fldTypes = recType.getFieldTypes();
+                for (Integer pos : positions) {
+                    if (fldTypes[pos] == null) {
+                        fldTypes[pos] = t;
+                    } else { // nullable
+                        AUnionType nullableUnion = (AUnionType) fldTypes[pos];
+                        nullableUnion.setTypeAtIndex(t, 1);
+                    }
+                }
+            }
+        }
+
+        // solve remaining item type references
+        for (TypeSignature typeSignature : incompleteItemTypes.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = null;
+            if (MetadataManager.INSTANCE != null) {
+                dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, typeSignature.getNamespace(),
+                        typeSignature.getName());
+                if (dt == null) {
+                    throw new AlgebricksException("Could not resolve type " + typeSignature);
+                }
+                t = dt.getDatatype();
+            } else {
+                t = typeMap.get(typeSignature);
+            }
+            for (AbstractCollectionType act : incompleteItemTypes.get(typeSignature)) {
+                act.setItemType(t);
+            }
+        }
+    }
+
+    private static AOrderedListType computeOrderedListType(TypeSignature typeSignature, OrderedListTypeDefinition oltd,
+            Map<TypeSignature, IAType> typeMap, Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, String defaultDataverse)
+            throws AsterixException {
+        TypeExpression tExpr = oltd.getItemTypeExpression();
+        String typeName = typeSignature != null ? typeSignature.getName() : null;
+        AOrderedListType aolt = new AOrderedListType(null, typeName);
+        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, aolt, defaultDataverse);
+        return aolt;
+    }
+
+    private static AUnorderedListType computeUnorderedListType(TypeSignature typeSignature,
+            UnorderedListTypeDefinition ultd, Map<TypeSignature, IAType> typeMap,
+            Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, String defaulDataverse)
+            throws AsterixException {
+        TypeExpression tExpr = ultd.getItemTypeExpression();
+        String typeName = typeSignature != null ? typeSignature.getName() : null;
+        AUnorderedListType ault = new AUnorderedListType(null, typeName);
+        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, ault, defaulDataverse);
+        return ault;
+    }
+
+    private static void setCollectionItemType(TypeExpression tExpr, Map<TypeSignature, IAType> typeMap,
+            Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, AbstractCollectionType act,
+            String defaultDataverse) throws AsterixException {
+        switch (tExpr.getTypeKind()) {
+            case ORDEREDLIST: {
+                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
+                IAType t = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes,
+                        defaultDataverse);
+                act.setItemType(t);
+                break;
+            }
+            case UNORDEREDLIST: {
+                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
+                IAType t = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes,
+                        defaultDataverse);
+                act.setItemType(t);
+                break;
+            }
+            case RECORD: {
+                RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
+                IAType t = computeRecordType(null, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes,
+                        defaultDataverse);
+                act.setItemType(t);
+                break;
+            }
+            case TYPEREFERENCE: {
+                TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
+                TypeSignature signature = new TypeSignature(defaultDataverse, tre.getIdent().getValue());
+                IAType tref = solveTypeReference(signature, typeMap);
+                if (tref != null) {
+                    act.setItemType(tref);
+                } else {
+                    addIncompleteCollectionTypeReference(act, tre, incompleteItemTypes, defaultDataverse);
+                }
+                break;
+            }
+            default: {
+                throw new IllegalStateException();
+            }
+        }
+    }
+
+    private static void addIncompleteCollectionTypeReference(AbstractCollectionType collType,
+            TypeReferenceExpression tre, Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes,
+            String defaultDataverse) {
+        String typeName = tre.getIdent().getValue();
+        TypeSignature typeSignature = new TypeSignature(defaultDataverse, typeName);
+        List<AbstractCollectionType> typeList = incompleteItemTypes.get(typeName);
+        if (typeList == null) {
+            typeList = new LinkedList<AbstractCollectionType>();
+            incompleteItemTypes.put(typeSignature, typeList);
+        }
+        typeList.add(collType);
+    }
+
+    private static void addIncompleteFieldTypeReference(ARecordType recType, int fldPosition,
+            TypeReferenceExpression tre, Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
+        String typeName = tre.getIdent().getValue();
+        Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes.get(typeName);
+        if (refMap == null) {
+            refMap = new HashMap<ARecordType, List<Integer>>();
+            incompleteFieldTypes.put(typeName, refMap);
+        }
+        List<Integer> typeList = refMap.get(recType);
+        if (typeList == null) {
+            typeList = new ArrayList<Integer>();
+            refMap.put(recType, typeList);
+        }
+        typeList.add(fldPosition);
+    }
+
+    private static void addIncompleteTopLevelTypeReference(String tdeclName, TypeReferenceExpression tre,
+            Map<TypeSignature, List<TypeSignature>> incompleteTopLevelTypeReferences, String defaultDataverse) {
+        String name = tre.getIdent().getValue();
+        TypeSignature typeSignature = new TypeSignature(defaultDataverse, name);
+        List<TypeSignature> refList = incompleteTopLevelTypeReferences.get(name);
+        if (refList == null) {
+            refList = new LinkedList<TypeSignature>();
+            incompleteTopLevelTypeReferences.put(new TypeSignature(defaultDataverse, tre.getIdent().getValue()),
+                    refList);
+        }
+        refList.add(typeSignature);
+    }
+
+    private static IAType solveTypeReference(TypeSignature typeSignature, Map<TypeSignature, IAType> typeMap) {
+        IAType builtin = builtinTypeMap.get(typeSignature.getName());
+        if (builtin != null) {
+            return builtin;
+        } else {
+            return typeMap.get(typeSignature);
+        }
+    }
+
+    private static ARecordType computeRecordType(TypeSignature typeSignature, RecordTypeDefinition rtd,
+            Map<TypeSignature, IAType> typeMap, Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<TypeSignature, List<AbstractCollectionType>> incompleteItemTypes, String defaultDataverse)
+            throws AsterixException {
+        List<String> names = rtd.getFieldNames();
+        int n = names.size();
+        String[] fldNames = new String[n];
+        IAType[] fldTypes = new IAType[n];
+        int i = 0;
+        for (String s : names) {
+            fldNames[i++] = s;
+        }
+        boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
+        ARecordType recType = new ARecordType(typeSignature == null ? null : typeSignature.getName(), fldNames,
+                fldTypes, isOpen);
+
+        List<IRecordFieldDataGen> fieldDataGen = rtd.getFieldDataGen();
+        if (fieldDataGen.size() == n) {
+            IRecordFieldDataGen[] rfdg = new IRecordFieldDataGen[n];
+            rfdg = fieldDataGen.toArray(rfdg);
+            recType.getAnnotations().add(new RecordDataGenAnnotation(rfdg, rtd.getUndeclaredFieldsDataGen()));
+        }
+
+        for (int j = 0; j < n; j++) {
+            TypeExpression texpr = rtd.getFieldTypes().get(j);
+            switch (texpr.getTypeKind()) {
+                case TYPEREFERENCE: {
+                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
+                    TypeSignature signature = new TypeSignature(defaultDataverse, tre.getIdent().getValue());
+                    IAType tref = solveTypeReference(signature, typeMap);
+                    if (tref != null) {
+                        if (!rtd.getNullableFields().get(j)) { // not nullable
+                            fldTypes[j] = tref;
+                        } else { // nullable
+                            fldTypes[j] = makeUnionWithNull(null, tref);
+                        }
+                    } else {
+                        addIncompleteFieldTypeReference(recType, j, tre, incompleteFieldTypes);
+                        if (rtd.getNullableFields().get(j)) {
+                            fldTypes[j] = makeUnionWithNull(null, null);
+                        }
+                    }
+                    break;
+                }
+                case RECORD: {
+                    RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
+                    IAType t2 = computeRecordType(null, recTypeDef2, typeMap, incompleteFieldTypes,
+                            incompleteItemTypes, defaultDataverse);
+                    if (!rtd.getNullableFields().get(j)) { // not nullable
+                        fldTypes[j] = t2;
+                    } else { // nullable
+                        fldTypes[j] = makeUnionWithNull(null, t2);
+                    }
+                    break;
+                }
+                case ORDEREDLIST: {
+                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
+                    IAType t2 = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes,
+                            defaultDataverse);
+                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
+                    break;
+                }
+                case UNORDEREDLIST: {
+                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
+                    IAType t2 = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes,
+                            incompleteFieldTypes, defaultDataverse);
+                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
+                    break;
+                }
+                default: {
+                    throw new IllegalStateException();
+                }
+            }
+
+        }
+
+        return recType;
+    }
+
+    private static AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
+        ArrayList<IAType> unionList = new ArrayList<IAType>(2);
+        unionList.add(BuiltinType.ANULL);
+        unionList.add(type);
+        return new AUnionType(unionList, unionTypeName);
+    }
+}
diff --git a/asterix-algebra/src/main/javacc/AQLPlus.jj b/asterix-algebra/src/main/javacc/AQLPlus.jj
index 9a8f783..5b97d04 100644
--- a/asterix-algebra/src/main/javacc/AQLPlus.jj
+++ b/asterix-algebra/src/main/javacc/AQLPlus.jj
@@ -20,12 +20,12 @@
 import edu.uci.ics.asterix.aql.literal.FloatLiteral;
 import edu.uci.ics.asterix.aql.literal.DoubleLiteral;
 import edu.uci.ics.asterix.aql.literal.FalseLiteral;
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 import edu.uci.ics.asterix.aql.literal.IntegerLiteral;
+import edu.uci.ics.asterix.aql.literal.LongIntegerLiteral;
 import edu.uci.ics.asterix.aql.literal.NullLiteral;
 import edu.uci.ics.asterix.aql.literal.StringLiteral;
 import edu.uci.ics.asterix.aql.literal.TrueLiteral;
-
 import edu.uci.ics.asterix.aql.parser.ScopeChecker;
 import edu.uci.ics.asterix.aql.base.*;
 import edu.uci.ics.asterix.aql.expression.*;
@@ -35,8 +35,15 @@
 import edu.uci.ics.asterix.aql.context.Scope;
 import edu.uci.ics.asterix.aql.context.RootScopeFactory;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IndexedNLJoinExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+
 
 public class AQLPlusParser extends ScopeChecker {
 
@@ -56,6 +63,8 @@
     private static final String HASH_GROUP_BY_HINT = "hash";
     private static final String BROADCAST_JOIN_HINT = "bcast";
     private static final String INMEMORY_HINT = "inmem";
+    private static final String INDEXED_NESTED_LOOP_JOIN_HINT = "indexnl";
+   
     
    
     private static String getHint(Token t) {
@@ -74,17 +83,7 @@
 			File file = new File(args[0]);
 			Reader fis = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
 		    AQLPlusParser parser = new AQLPlusParser(fis);
-		    Statement st = parser.Statement();
-		    st.accept(new AQLPrintVisitor(), 0);
-		    
-//		    System.out.println("FunctionCalls not found:");
-//		    for(FunctionDescriptor fd: notFoundFunctionList)
-//		    {
-//			if(lookupFunctionSignature(fd.getValue(), fd.getArity())!=null)
-//				notFoundFunctionList.remove(fd);
-//		    }
-//			System.out.println(notFoundFunctionList.toString());
-
+		    List<Statement> st = parser.Statement();
 	}
 
     public void initScope() {
@@ -95,7 +94,7 @@
 PARSER_END(AQLPlusParser)
 
 
-Statement Statement() throws ParseException:
+List<Statement> Statement() throws ParseException:
 {
   Query query = null;
   // scopeStack.push(RootScopeFactory.createRootScope(this));
@@ -128,26 +127,20 @@
           | "set" {
                        decls.add(SetStatement());
                     }
+          |          
+            {
+             decls.add(Query()) ;
+           } ";"
                                                      
+                                                      
         )*
-        (query = Query())?
       )
 
       <EOF>
     )
     {
-      if (query == null) {
-        query = new Query(true);
-      }
-      query.setPrologDeclList(decls);
-    
-//        for(FunctionDecl fdc : fdList)
-//        {
-//        	FunctionDescriptor fd = (FunctionDescriptor) fdc.getIdent();
-//                notFoundFunctionList.remove(fd);
-//        }
-// }
-      return query;
+     
+     return decls;  
     }
 }
 
@@ -186,7 +179,7 @@
      <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
      <LEFTPAREN> query = Query() <RIGHTPAREN>
      {
-        stmt = new WriteFromQueryResultStatement(datasetName, query, getVarCounter());
+        stmt = new WriteFromQueryResultStatement(null, datasetName, query, getVarCounter());
      } ))  
         
     ";"
@@ -200,10 +193,10 @@
   Identifier dvName = null;  
 }
 {
-  "dataverse" <IDENTIFIER> { dvName = new Identifier(token.image); }
+  "dataverse" <IDENTIFIER> { defaultDataverse = token.image;}
   ";"
   {
-    return new DataverseDecl(dvName);
+    return new DataverseDecl(new Identifier(defaultDataverse));
   }
 }
 
@@ -271,7 +264,7 @@
         
   ";"
   {
-     return new LoadFromFileStatement(datasetName, adapter, properties, alreadySorted);
+     return new LoadFromFileStatement(null, datasetName, adapter, properties, alreadySorted);
   }   
 }
 
@@ -288,7 +281,7 @@
   "as"
   ( typeExpr = TypeExpr() )
   {
-    return new TypeDecl(ident, typeExpr);
+    return new TypeDecl(null, ident, typeExpr);
   }
 }
 
@@ -392,8 +385,8 @@
 
 FunctionDecl FunctionDeclaration() throws ParseException:
 {
-  FunctionDecl func = new FunctionDecl();
-  AsterixFunction ident;
+  FunctionDecl funcDecl;
+  FunctionSignature signature;
   String functionName;
   int arity = 0;
   List<VarIdentifier> paramList = new ArrayList<VarIdentifier>();
@@ -426,12 +419,10 @@
     })*)? <RIGHTPAREN> "{" funcBody = Expression() "}"
 
     {
-      ident = new AsterixFunction(functionName, arity);
-      getCurrentScope().addFunctionDescriptor(ident, false);
-      func.setIdent(ident);
-      func.setFuncBody(funcBody);
-      func.setParamList(paramList);
-      return func;
+      signature = new FunctionSignature(defaultDataverse, functionName, arity);
+      getCurrentScope().addFunctionDescriptor(signature, false);
+      funcDecl = new FunctionDecl(signature, paramList, funcBody);
+      return funcDecl;
     }
 }
 
@@ -778,8 +769,9 @@
 	{
 		if(expr.getKind() == Expression.Kind.LITERAL_EXPRESSION)
 		{
-			ILiteral lit = ((LiteralExpr)expr).getValue();
-			if(lit.getLiteralType() == ILiteral.Type.INTEGER) {
+			Literal lit = ((LiteralExpr)expr).getValue();
+			if(lit.getLiteralType() == Literal.Type.INTEGER || 
+ 			   lit.getLiteralType() == Literal.Type.LONG) {
 				idx = Integer.valueOf(lit.getStringValue());
 			}	
 			else {
@@ -809,7 +801,7 @@
   Expression expr = null;
 }
 {
-  //ILiteral | VariableRef | ListConstructor | RecordConstructor | FunctionCallExpr | ParenthesizedExpression
+  //Literal | VariableRef | ListConstructor | RecordConstructor | FunctionCallExpr | ParenthesizedExpression
 	(
 	  expr =Literal() 
 	   | expr = FunctionCallExpr()
@@ -846,7 +838,11 @@
  	 | <INTEGER_LITERAL>
     {
       t= getToken(0);
-	  lit.setValue(new IntegerLiteral(new Integer(t.image)));
+	  try {
+	      lit.setValue(new IntegerLiteral(new Integer(t.image)));
+	  } catch(NumberFormatException ex) {
+	      lit.setValue(new LongIntegerLiteral(new Long(t.image)));
+	  }
 	}
      | < FLOAT_LITERAL >
     {
@@ -1038,16 +1034,24 @@
 
 Expression FunctionCallExpr() throws ParseException:
 {
-  CallExpr pf = new CallExpr();
-  List<Expression > argList = new ArrayList<Expression >();
+  CallExpr callExpr;
+  List<Expression> argList = new ArrayList<Expression>();
   Expression tmp;
   int arity = 0;
-  Token funcName;
+  String funcName;
+  String dataverse;
+  String hint=null;
+  String id1=null;
+  String id2=null;
 }
-{
-    ( <IDENTIFIER> | <DATASET> )
+{  
+    ( <IDENTIFIER> { dataverse = defaultDataverse; funcName = token.image;} 
+     ("." <IDENTIFIER> { dataverse = funcName; funcName = token.image;})? 
+     | 
+     <DATASET> {dataverse = MetadataConstants.METADATA_DATAVERSE_NAME; funcName = getToken(0).toString();}
+    )
     {
-		funcName = getToken(0);
+       hint=getHint(token);
     }
      <LEFTPAREN> (tmp = Expression()
      {
@@ -1056,16 +1060,16 @@
      } ("," tmp = Expression() { argList.add(tmp); arity++; })*)? <RIGHTPAREN>
 
      {
-       AsterixFunction fd = lookupFunctionSignature(funcName.toString(), arity);
-	     if(fd == null)
-	     {
-	        fd = new AsterixFunction(funcName.toString(), arity);
-//	     	notFoundFunctionList.add(fd);
-	     }
-//	     	throw new ParseException("can't find function "+ funcName.toString() + "@" + arity);
-       pf.setIdent(fd);
-       pf.setExprList(argList);
-       return pf;
+       FunctionSignature signature = lookupFunctionSignature(dataverse, funcName.toString(), arity);
+             if(signature == null)
+             {
+                signature = new FunctionSignature(dataverse, funcName.toString(), arity);
+             }
+       callExpr = new CallExpr(signature,argList);
+       if (hint != null && hint.startsWith(INDEXED_NESTED_LOOP_JOIN_HINT)) {
+          callExpr.addHint(IndexedNLJoinExpressionAnnotation.INSTANCE);
+        }
+       return callExpr;
      }
 }
 
@@ -1231,12 +1235,9 @@
 	extendCurrentScope();
 }
 {
-    "let" varExp = Variable()
+    "let" varExp = Variable() ":=" beExp = Expression()
     {
       getCurrentScope().addNewVarSymbolToScope(varExp.getVar());
-	}
-     ":=" beExp = Expression()
-    {
       lc.setVarExpr(varExp);
       lc.setBeExpr(beExp);
       return lc;
diff --git a/asterix-app/data/custord-tiny/customer-tiny-neg.adm b/asterix-app/data/custord-tiny/customer-tiny-neg.adm
new file mode 100644
index 0000000..4e8e9ab
--- /dev/null
+++ b/asterix-app/data/custord-tiny/customer-tiny-neg.adm
@@ -0,0 +1,10 @@
+{  "cid": 4440,  "name": "Renea Lavelett",  "age": 72,  "address": {  "number": 8963,  "street": "Oak St.",  "city": "Mountain View" },  "lastorder": {  "oid": 20520,  "total": 6.198883E-4f } }
+{  "cid": 530,  "name": "Clint Coil",  "age": 79,  "address": {  "number": 4491,  "street": "7th St.",  "city": "San Jose" },  "lastorder": {  "oid": 530,  "total": 7.5879574f } }
+{  "cid": 76,  "name": "Marvella Loud",  "age": 72,  "address": {  "number": 6988,  "street": "7th St.",  "city": "Sunnyvale" },  "lastorder": {  "oid": 76,  "total": 12.811708f } }
+{  "cid": 586,  "name": "Tamie Pollara",  "age": 89,  "address": {  "number": 7424,  "street": "Oak St.",  "city": "Sunnyvale" },  "lastorder": {  "oid": 586,  "total": 22.163845f } }
+{  "cid": 59,  "name": "Lance Pracht",  "age": 27,  "address": {  "number": 342,  "street": "Washington St.",  "city": "Mountain View" },  "lastorder": {  "oid": 59,  "total": 26.975239f } }
+{  "cid": 939,  "name": "Larry Gothier",  "age": 34,  "address": {  "number": 1786,  "street": "Park St.",  "city": "Mountain View" },  "lastorder": {  "oid": 939,  "total": 33.49055f } }
+{  "cid": 996,  "name": "Obdulia Dicosmo",  "age": 14,  "address": {  "number": 9237,  "street": "Cedar St.",  "city": "Los Angeles" },  "lastorder": {  "oid": 996,  "total": 94.23889f } }
+{  "cid": 953,  "name": "Elias Leonardo",  "age": 62,  "address": {  "number": 7831,  "street": "Main St.",  "city": "San Jose" },  "lastorder": {  "oid": 953,  "total": 79.990875f } }
+{  "cid": 74,  "name": "Myrtice Cubias",  "age": 11,  "address": {  "number": 9048,  "street": "Park St.",  "city": "San Jose" },  "lastorder": {  "oid": 74,  "total": 47.675938f } }
+{  "cid": 758,  "name": "Curt Savage",  "age": 81,  "address": {  "number": 5651,  "street": "Main St.",  "city": "Seattle" },  "lastorder": {  "oid": 758,  "total": 45.33596f } }
\ No newline at end of file
diff --git a/asterix-app/data/dblp-small/dblp-small-nulls.adm b/asterix-app/data/dblp-small/dblp-small-nulls.adm
new file mode 100644
index 0000000..d943f54
--- /dev/null
+++ b/asterix-app/data/dblp-small/dblp-small-nulls.adm
@@ -0,0 +1,100 @@
+{ "id": 2, "dblpid": "books/acm/kim95/Blakeley95", "title": "OQL[C++]  Extending C++ with an Object Query Capability.", "authors": "José A. Blakeley", "misc": "2002-01-03 69-88 Modern Database Systems db/books/collections/kim95.html#Blakeley95 1995" }
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 6, "dblpid": "books/acm/kim95/DittrichD95", "title": "Where Object-Oriented DBMSs Should Do Better  A Critique Based on Early Experiences.", "authors": "Angelika Kotz Dittrich Klaus R. Dittrich", "misc": "2002-01-03 238-254 1995 Modern Database Systems db/books/collections/kim95.html#DittrichD95" }
+{ "id": 8, "dblpid": "books/acm/kim95/Goodman95", "title": "An Object-Oriented DBMS War Story  Developing a Genome Mapping Database in C++.", "authors": "Nathan Goodman", "misc": "2002-01-03 216-237 1995 Modern Database Systems db/books/collections/kim95.html#Goodman95" }
+{ "id": 10, "dblpid": "books/acm/kim95/KelleyGKRG95", "title": "Schema Architecture of the UniSQL/M Multidatabase System", "authors": "William Kelley Sunit K. Gala Won Kim Tom C. Reyes Bruce Graham", "misc": "2004-03-08 Modern Database Systems books/acm/Kim95 621-648 1995 db/books/collections/kim95.html#KelleyGKRG95" }
+{ "id": 12, "dblpid": "books/acm/kim95/Kim95", "authors": "Won Kim", "misc": "2002-01-03 5-17 1995 Modern Database Systems db/books/collections/kim95.html#Kim95" }
+{ "id": 14, "dblpid": "books/acm/kim95/Kim95b", "title": "Introduction to Part 2  Technology for Interoperating Legacy Databases.", "authors": "Won Kim", "misc": "2002-01-03 515-520 1995 Modern Database Systems db/books/collections/kim95.html#Kim95b" }
+{ "id": 16, "dblpid": "books/acm/kim95/KimG95", "authors": "Won Kim Jorge F. Garza", "misc": "2002-01-03 203-215 1995 Modern Database Systems db/books/collections/kim95.html#KimG95" }
+{ "id": 18, "dblpid": "books/acm/kim95/Kowalski95", "title": "The POSC Solution to Managing E&P Data.", "authors": "Vincent J. Kowalski", "misc": "2002-01-03 281-301 1995 Modern Database Systems db/books/collections/kim95.html#Kowalski95" }
+{ "id": 20, "dblpid": "books/acm/kim95/Lunt95", "title": "Authorization in Object-Oriented Databases.", "authors": "Teresa F. Lunt", "misc": "2002-01-03 130-145 1995 Modern Database Systems db/books/collections/kim95.html#Lunt95" }
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
+{ "id": 24, "dblpid": "books/acm/kim95/OzsuB95", "authors": "M. Tamer Özsu José A. Blakeley", "misc": "2002-01-03 146-174 1995 Modern Database Systems db/books/collections/kim95.html#OzsuB95" }
+{ "id": 26, "dblpid": "books/acm/kim95/Samet95", "title": "Spatial Data Structures.", "authors": "Hanan Samet", "misc": "2004-03-08 361-385 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#Samet95 1995" }
+{ "id": 28, "dblpid": "books/acm/kim95/ShanADDK95", "title": "Pegasus  A Heterogeneous Information Management System.", "authors": "Ming-Chien Shan Rafi Ahmed Jim Davis Weimin Du William Kent", "misc": "2004-03-08 664-682 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#ShanADDK95 1995" }
+{ "id": 30, "dblpid": "books/acm/kim95/SoleyK95", "title": "The OMG Object Model.", "authors": "Richard Mark Soley William Kent", "misc": "2002-01-03 18-41 1995 Modern Database Systems db/books/collections/kim95.html#SoleyK95" }
+{ "id": 32, "dblpid": "books/acm/kim95/Thompson95", "title": "The Changing Database Standards Landscape.", "authors": "Craig W. Thompson", "misc": "2002-01-03 302-317 1995 Modern Database Systems db/books/collections/kim95.html#Thompson95" }
+{ "id": 34, "dblpid": "books/acm/Kim95", "title": "Modern Database Systems  The Object Model, Interoperability, and Beyond.", "authors": "", "misc": "2004-03-08 Won Kim Modern Database Systems ACM Press and Addison-Wesley 1995 0-201-59098-0 db/books/collections/kim95.html" }
+{ "id": 36, "dblpid": "books/aw/kimL89/BjornerstedtH89", "title": "Version Control in an Object-Oriented Architecture.", "authors": "Anders Björnerstedt Christer Hulten", "misc": "2006-02-24 451-485 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#BjornerstedtH89" }
+{ "id": 38, "dblpid": "books/aw/kimL89/CareyDRS89", "title": "Storage Management in EXODUS.", "authors": "Michael J. Carey David J. DeWitt Joel E. Richardson Eugene J. Shekita", "misc": "2002-01-03 341-369 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#CareyDRS89" }
+{ "id": 40, "dblpid": "books/aw/kimL89/DiederichM89", "title": "Objects, Messages, and Rules in Database Design.", "authors": "Jim Diederich Jack Milton", "misc": "2002-01-03 177-197 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#DiederichM89" }
+{ "id": 42, "dblpid": "books/aw/kimL89/FishmanABCCDHHKLLMNRSW89", "title": "Overview of the Iris DBMS.", "authors": "Daniel H. Fishman Jurgen Annevelink David Beech E. C. Chow Tim Connors J. W. Davis Waqar Hasan C. G. Hoch William Kent S. Leichner Peter Lyngbæk Brom Mahbod Marie-Anne Neimat Tore Risch Ming-Chien Shan W. Kevin Wilkinson", "misc": "2002-01-03 219-250 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#FishmanABCCDHHKLLMNRSW89" }
+{ "id": 44, "dblpid": "books/aw/kimL89/KimKD89", "title": "Indexing Techniques for Object-Oriented Databases.", "authors": "Won Kim Kyung-Chang Kim Alfred G. Dale", "misc": "2002-01-03 371-394 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#KimKD89" }
+{ "id": 46, "dblpid": "books/aw/kimL89/Maier89", "title": "Making Database Systems Fast Enough for CAD Applications.", "authors": "David Maier", "misc": "2002-01-03 573-582 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Maier89" }
+{ "id": 48, "dblpid": "books/aw/kimL89/Moon89", "title": "The Common List Object-Oriented Programming Language Standard.", "authors": "David A. Moon", "misc": "2002-01-03 49-78 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Moon89" }
+{ "id": 50, "dblpid": "books/aw/kimL89/Nierstrasz89", "title": "A Survey of Object-Oriented Concepts.", "authors": "Oscar Nierstrasz", "misc": "2002-01-03 3-21 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Nierstrasz89" }
+{ "id": 52, "dblpid": "books/aw/kimL89/Russinoff89", "title": "Proteus  A Frame-Based Nonmonotonic Inference System.", "authors": "David M. Russinoff", "misc": "2002-01-03 127-150 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#Russinoff89" }
+{ "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }
+{ "id": 56, "dblpid": "books/aw/kimL89/TomlinsonS89", "title": "Concurrent Object-Oriented Programming Languages.", "authors": "Chris Tomlinson Mark Scheevel", "misc": "2002-01-03 79-124 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#TomlinsonS89" }
+{ "id": 58, "dblpid": "books/aw/kimL89/Wand89", "title": "A Proposal for a Formal Model of Objects.", "authors": "Yair Wand", "misc": "2002-01-03 537-559 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Wand89" }
+{ "id": 60, "dblpid": "books/aw/stonebraker86/RoweS86", "authors": "Lawrence A. Rowe Michael Stonebraker", "misc": "2002-01-03 63-82 1986 The INGRES Papers db/books/collections/Stonebraker86.html#RoweS86 db/books/collections/Stonebraker86/RoweS86.html ingres/P063.pdf" }
+{ "id": 62, "dblpid": "books/aw/stonebraker86/Stonebraker86a", "title": "Supporting Studies on Relational Systems (Introduction to Section 2).", "authors": "Michael Stonebraker", "misc": "2002-01-03 83-85 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86a db/books/collections/Stonebraker86/Stonebraker86a.html ingres/P083.pdf" }
+{ "id": 64, "dblpid": "books/aw/stonebraker86/Stonebraker86c", "authors": "Michael Stonebraker", "misc": "2002-01-03 187-196 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86c db/books/collections/Stonebraker86/Stonebraker86c.html ingres/P187.pdf" }
+{ "id": 66, "dblpid": "books/aw/stonebraker86/Stonebraker86e", "title": "Extended Semantics for the Relational Model (Introduction to Section 5).", "authors": "Michael Stonebraker", "misc": "2002-01-03 313-316 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86e db/books/collections/Stonebraker86/Stonebraker86e.html ingres/P313.pdf" }
+{ "id": 68, "dblpid": "books/aw/stonebraker86/X86", "title": "Title, Preface, Contents.", "authors": "", "misc": "2002-01-03 1986 The INGRES Papers db/books/collections/Stonebraker86.html#X86 db/books/collections/Stonebraker86/X86.html ingres/frontmatter.pdf" }
+{ "id": 70, "dblpid": "books/aw/Knuth86a", "title": "TeX  The Program", "authors": "Donald E. Knuth", "misc": "2002-01-03 Addison-Wesley 1986 0-201-13437-3" }
+{ "id": 72, "dblpid": "books/aw/Lamport86", "title": "LaTeX  User's Guide & Reference Manual", "authors": "Leslie Lamport", "misc": "2002-01-03 Addison-Wesley 1986 0-201-15790-X" }
+{ "id": 74, "dblpid": "books/aw/Lamport2002", "title": "Specifying Systems, The TLA+ Language and Tools for Hardware and Software Engineers", "authors": "Leslie Lamport", "misc": "2005-07-28 Addison-Wesley 2002 0-3211-4306-X http //research.microsoft.com/users/lamport/tla/book.html" }
+{ "id": 76, "dblpid": "books/aw/LewisBK01", "title": "Databases and Transaction Processing  An Application-Oriented Approach", "authors": "Philip M. Lewis Arthur J. Bernstein Michael Kifer", "misc": "2002-01-03 Addison-Wesley 2001 0-201-70872-8" }
+{ "id": 78, "dblpid": "books/aw/LindholmY97", "title": "The Java Virtual Machine Specification", "authors": "Tim Lindholm Frank Yellin", "misc": "2002-01-28 Addison-Wesley 1997 0-201-63452-X" }
+{ "id": 80, "dblpid": "books/aw/Sedgewick83", "title": "Algorithms", "authors": "Robert Sedgewick", "misc": "2002-01-03 Addison-Wesley 1983 0-201-06672-6" }
+{ "id": 82, "dblpid": "conf/focs/AspnesW92", "title": "Randomized Consensus in Expected O(n log ^2 n) Operations Per Processor", "authors": "James Aspnes Orli Waarts", "misc": "2006-04-25 137-146 conf/focs/FOCS33 1992 FOCS db/conf/focs/focs92.html#AspnesW92" }
+{ "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }
+{ "id": 86, "dblpid": "conf/focs/Megiddo82", "title": "Linear-Time Algorithms for Linear Programming in R^3 and Related Problems", "authors": "Nimrod Megiddo", "misc": "2006-04-25 329-338 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#Megiddo82" }
+{ "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
+{ "id": 92, "dblpid": "conf/stacs/Laue08", "title": "Geometric Set Cover and Hitting Sets for Polytopes in R³.", "authors": "Sören Laue", "misc": "2008-03-04 2008 STACS 479-490 http //drops.dagstuhl.de/opus/volltexte/2008/1367 conf/stacs/2008 db/conf/stacs/stacs2008.html#Laue08" }
+{ "id": 94, "dblpid": "conf/awoc/IbarraJRC88", "title": "On Some Languages in NC.", "authors": "Oscar H. Ibarra Tao Jiang Bala Ravikumar Jik H. Chang", "misc": "2002-08-06 64-73 1988 conf/awoc/1988 AWOC db/conf/awoc/awoc88.html#IbarraJRC88" }
+{ "id": 96, "dblpid": "conf/focs/GalilHLSW82", "title": "An O(n^3 log n) Deterministic and an O(n^3) Probabilistic Isomorphism Test for Trivalent Graphs", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2006-04-25 118-125 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#GalilHLSW82" }
+{ "id": 98, "dblpid": "conf/focs/GalilT86", "title": "An O(n^2 (m + n log n) log n) Min-Cost Flow Algorithm", "authors": "Zvi Galil Éva Tardos", "misc": "2006-04-25 1-9 conf/focs/FOCS27 1986 FOCS db/conf/focs/focs86.html#GalilT86" }
+{ "id": 100, "dblpid": "series/synthesis/2009Brozos", "title": "The Geometry of Walker Manifolds", "authors": "Miguel Brozos-Vázquez Eduardo García-Río Peter Gilkey Stana Nikcevic Rámon Vázquez-Lorenzo", "misc": "2009-09-06 The Geometry of Walker Manifolds http //dx.doi.org/10.2200/S00197ED1V01Y200906MAS005 http //dx.doi.org/10.2200/S00197ED1V01Y200906MAS005 2009 Synthesis Lectures on Mathematics & Statistics Morgan & Claypool Publishers" }
+{ "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }
+{ "id": 3, "dblpid": "books/acm/kim95/BreitbartGS95", "title": "Transaction Management in Multidatabase Systems.", "authors": "Yuri Breitbart Hector Garcia-Molina Abraham Silberschatz", "misc": "2004-03-08 573-591 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartGS95 1995" }
+{ "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }
+{ "id": 7, "dblpid": "books/acm/kim95/Garcia-MolinaH95", "title": "Distributed Databases.", "authors": "Hector Garcia-Molina Meichun Hsu", "misc": "2002-01-03 477-493 1995 Modern Database Systems db/books/collections/kim95.html#Garcia-MolinaH95" }
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
+{ "id": 11, "dblpid": "books/acm/kim95/KemperM95", "title": "Physical Object Management.", "authors": "Alfons Kemper Guido Moerkotte", "misc": "2002-01-03 175-202 1995 Modern Database Systems db/books/collections/kim95.html#KemperM95" }
+{ "id": 13, "dblpid": "books/acm/kim95/Kim95a", "title": "Object-Oriented Database Systems  Promises, Reality, and Future.", "authors": "Won Kim", "misc": "2002-01-03 255-280 1995 Modern Database Systems db/books/collections/kim95.html#Kim95a" }
+{ "id": 15, "dblpid": "books/acm/kim95/KimCGS95", "title": "On Resolving Schematic Heterogeneity in Multidatabase Systems.", "authors": "Won Kim Injun Choi Sunit K. Gala Mark Scheevel", "misc": "2002-01-03 521-550 1995 Modern Database Systems db/books/collections/kim95.html#KimCGS95" }
+{ "id": 17, "dblpid": "books/acm/kim95/KimK95", "title": "On View Support in Object-Oriented Databases Systems.", "authors": "Won Kim William Kelley", "misc": "2002-01-03 108-129 1995 Modern Database Systems db/books/collections/kim95.html#KimK95" }
+{ "id": 19, "dblpid": "books/acm/kim95/KriegerA95", "title": "C++ Bindings to an Object Database.", "authors": "David Krieger Tim Andrews", "misc": "2002-01-03 89-107 1995 Modern Database Systems db/books/collections/kim95.html#KriegerA95" }
+{ "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }
+{ "id": 23, "dblpid": "books/acm/kim95/Omiecinski95", "title": "Parallel Relational Database Systems.", "authors": "Edward Omiecinski", "misc": "2002-01-03 494-512 1995 Modern Database Systems db/books/collections/kim95.html#Omiecinski95" }
+{ "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }
+{ "id": 27, "dblpid": "books/acm/kim95/SametA95", "title": "Spatial Data Models and Query Processing.", "authors": "Hanan Samet Walid G. Aref", "misc": "2002-01-03 338-360 1995 Modern Database Systems db/books/collections/kim95.html#SametA95" }
+{ "id": 29, "dblpid": "books/acm/kim95/Snodgrass95", "title": "Temporal Object-Oriented Databases  A Critical Comparison.", "authors": "Richard T. Snodgrass", "misc": "2002-01-03 386-408 1995 Modern Database Systems db/books/collections/kim95.html#Snodgrass95" }
+{ "id": 31, "dblpid": "books/acm/kim95/Stout95", "title": "EDA/SQL.", "authors": "Ralph L. Stout", "misc": "2004-03-08 649-663 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#Stout95 1995" }
+{ "id": 33, "dblpid": "books/acm/kim95/BreitbartR95", "title": "Overview of the ADDS System.", "authors": "Yuri Breitbart Tom C. Reyes", "misc": "2009-06-12 683-701 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartR95 1995" }
+{ "id": 35, "dblpid": "books/ap/MarshallO79", "title": "Inequalities  Theory of Majorization and Its Application.", "authors": "Albert W. Marshall Ingram Olkin", "misc": "2002-01-03 Academic Press 1979 0-12-473750-1" }
+{ "id": 37, "dblpid": "books/aw/kimL89/BretlMOPSSWW89", "title": "The GemStone Data Management System.", "authors": "Robert Bretl David Maier Allen Otis D. Jason Penney Bruce Schuchardt Jacob Stein E. Harold Williams Monty Williams", "misc": "2002-01-03 283-308 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#BretlMOPSSWW89" }
+{ "id": 39, "dblpid": "books/aw/kimL89/Decouchant89", "title": "A Distributed Object Manager for the Smalltalk-80 System.", "authors": "Dominique Decouchant", "misc": "2002-01-03 487-520 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Decouchant89" }
+{ "id": 41, "dblpid": "books/aw/kimL89/EllisG89", "title": "Active Objects  Ealities and Possibilities.", "authors": "Clarence A. Ellis Simon J. Gibbs", "misc": "2002-01-03 561-572 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#EllisG89" }
+{ "id": 43, "dblpid": "books/aw/kimL89/KimBCGW89", "title": "Features of the ORION Object-Oriented Database System.", "authors": "Won Kim Nat Ballou Hong-Tai Chou Jorge F. Garza Darrell Woelk", "misc": "2002-01-03 251-282 Object-Oriented Concepts, Databases, and Applications ACM Press and Addison-Wesley 1989 db/books/collections/kim89.html#KimBCGW89" }
+{ "id": 45, "dblpid": "books/aw/kimL89/King89", "title": "My Cat Is Object-Oriented.", "authors": "Roger King", "misc": "2002-01-03 23-30 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#King89" }
+{ "id": 47, "dblpid": "books/aw/kimL89/MellenderRS89", "authors": "Fred Mellender Steve Riegel Andrew Straw", "misc": "2002-01-03 423-450 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#MellenderRS89" }
+{ "id": 49, "dblpid": "books/aw/kimL89/Moss89", "title": "Object Orientation as Catalyst for Language-Database Inegration.", "authors": "J. Eliot B. Moss", "misc": "2002-01-03 583-592 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#Moss89" }
+{ "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }
+{ "id": 53, "dblpid": "books/aw/kimL89/SkarraZ89", "title": "Concurrency Control and Object-Oriented Databases.", "authors": "Andrea H. Skarra Stanley B. Zdonik", "misc": "2002-01-03 395-421 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SkarraZ89" }
+{ "id": 55, "dblpid": "books/aw/kimL89/TarltonT89", "title": "Pogo  A Declarative Representation System for Graphics.", "authors": "Mark A. Tarlton P. Nong Tarlton", "misc": "2002-01-03 151-176 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#TarltonT89" }
+{ "id": 57, "dblpid": "books/aw/kimL89/TsichritzisN89", "title": "Directions in Object-Oriented Research.", "authors": "Dennis Tsichritzis Oscar Nierstrasz", "misc": "2002-01-03 523-536 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#TsichritzisN89" }
+{ "id": 59, "dblpid": "books/aw/kimL89/WeiserL89", "title": "OZ+  An Object-Oriented Database System.", "authors": "Stephen P. Weiser Frederick H. Lochovsky", "misc": "2002-01-03 309-337 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#WeiserL89" }
+{ "id": 61, "dblpid": "books/aw/stonebraker86/Stonebraker86", "title": "Design of Relational Systems (Introduction to Section 1).", "authors": "Michael Stonebraker", "misc": "2002-01-03 1-3 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86 db/books/collections/Stonebraker86/Stonebraker86.html ingres/P001.pdf" }
+{ "id": 63, "dblpid": "books/aw/stonebraker86/Stonebraker86b", "title": "Distributed Database Systems (Introduction to Section 3).", "authors": "Michael Stonebraker", "misc": "2002-01-03 183-186 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86b db/books/collections/Stonebraker86/Stonebraker86b.html ingres/P183.pdf" }
+{ "id": 65, "dblpid": "books/aw/stonebraker86/Stonebraker86d", "title": "User Interfaces for Database Systems (Introduction to Section 4).", "authors": "Michael Stonebraker", "misc": "2002-01-03 243-245 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86d db/books/collections/Stonebraker86/Stonebraker86d.html ingres/P243.pdf" }
+{ "id": 67, "dblpid": "books/aw/stonebraker86/Stonebraker86f", "authors": "Michael Stonebraker", "misc": "2002-01-03 393-394 1986 The INGRES Papers db/books/collections/Stonebraker86.html#Stonebraker86f db/books/collections/Stonebraker86/Stonebraker86f.html ingres/P393.pdf" }
+{ "id": 69, "dblpid": "books/aw/stonebraker86/X86a", "title": "References.", "authors": "", "misc": "2002-01-03 429-444 1986 The INGRES Papers db/books/collections/Stonebraker86.html#X86a db/books/collections/Stonebraker86/X86a.html ingres/P429.pdf" }
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conf/edbt/ZhouH90 journals/ibmsj/Zloof77 books/mk/ZdonikM90 db/books/dbtext/abiteboul95.html" }
+{ "id": 73, "dblpid": "books/aw/AhoHU74", "title": "The Design and Analysis of Computer Algorithms.", "authors": "Alfred V. Aho John E. Hopcroft Jeffrey D. Ullman", "misc": "2002-01-03 Addison-Wesley 1974 0-201-00029-6" }
+{ "id": 75, "dblpid": "books/aw/AhoHU83", "title": "Data Structures and Algorithms.", "authors": "Alfred V. Aho John E. Hopcroft Jeffrey D. Ullman", "misc": "2002-01-03 Addison-Wesley 1983 0-201-00023-7" }
+{ "id": 77, "dblpid": "books/aw/AhoKW88", "title": "The AWK Programming Language", "authors": "Alfred V. Aho Brian W. Kernighan Peter J. Weinberger", "misc": "2002-01-03 Addison-Wesley 1988" }
+{ "id": 79, "dblpid": "books/aw/AhoSU86", "title": "Compilers  Princiles, Techniques, and Tools.", "authors": "Alfred V. Aho Ravi Sethi Jeffrey D. Ullman", "misc": "2002-01-03 Addison-Wesley 1986 0-201-10088-6" }
+{ "id": 81, "dblpid": "journals/siamcomp/AspnesW96", "authors": "James Aspnes Orli Waarts", "misc": "2002-01-03 1024-1044 1996 25 SIAM J. Comput. 5 db/journals/siamcomp/siamcomp25.html#AspnesW96" }
+{ "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }
+{ "id": 85, "dblpid": "journals/siamcomp/Megiddo83a", "title": "Linear-Time Algorithms for Linear Programming in R³ and Related Problems.", "authors": "Nimrod Megiddo", "misc": "2002-01-03 759-776 1983 12 SIAM J. Comput. 4 db/journals/siamcomp/siamcomp12.html#Megiddo83a" }
+{ "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 91, "dblpid": "journals/corr/abs-0802-2861", "title": "Geometric Set Cover and Hitting Sets for Polytopes in $R^3$", "authors": "Sören Laue", "misc": "2008-03-03 http //arxiv.org/abs/0802.2861 2008 CoRR abs/0802.2861 db/journals/corr/corr0802.html#abs-0802-2861 informal publication" }
+{ "id": 93, "dblpid": "journals/iandc/IbarraJCR91", "authors": "Oscar H. Ibarra Tao Jiang Jik H. Chang Bala Ravikumar", "misc": "2006-04-25 86-106 Inf. Comput. January 1991 90 1 db/journals/iandc/iandc90.html#IbarraJCR91" }
+{ "id": 95, "dblpid": "journals/jacm/GalilHLSW87", "title": "An O(n³log n) deterministic and an O(n³) Las Vegs isomorphism test for trivalent graphs.", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2003-11-20 513-531 1987 34 J. ACM 3 http //doi.acm.org/10.1145/28869.28870 db/journals/jacm/jacm34.html#GalilHLSW87" }
+{ "id": 97, "dblpid": "journals/jacm/GalilT88", "title": "An O(n²(m + n log n)log n) min-cost flow algorithm.", "authors": "Zvi Galil Éva Tardos", "misc": "2003-11-20 374-386 1988 35 J. ACM 2 http //doi.acm.org/10.1145/42282.214090 db/journals/jacm/jacm35.html#GalilT88" }
+{ "id": 99, "dblpid": "series/synthesis/2009Weintraub", "title": "Jordan Canonical Form  Theory and Practice", "authors": "Steven H. Weintraub", "misc": "2009-09-06 Jordan Canonical Form  Theory and Practice http //dx.doi.org/10.2200/S00218ED1V01Y200908MAS006 http //dx.doi.org/10.2200/S00218ED1V01Y200908MAS006 2009 Synthesis Lectures on Mathematics & Statistics Morgan & Claypool Publishers" }
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/data/empty.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/data/empty.adm
diff --git a/asterix-app/data/events/tiny/event.adm b/asterix-app/data/events/tiny/event.adm
index 21fd7e7..5e9d4b3 100644
--- a/asterix-app/data/events/tiny/event.adm
+++ b/asterix-app/data/events/tiny/event.adm
@@ -5,8 +5,8 @@
     "sponsoring_sigs": [ { "sig_id": 14, "chapter_name": "San Clemente" }, 
                          { "sig_id": 14, "chapter_name": "Laguna Beach" } ],
     "interest_keywords": {{ "art", "landscape", "nature", "vernissage" }},
-    "start_time": datetime( "2011-02-23T18:00:00:000-08:00" ),
-    "end_time": datetime( "2011-02-23T21:00:00:000-08:00" ) 
+    "start_time": datetime( "2011-02-23T18:00:00.000-08:00" ),
+    "end_time": datetime( "2011-02-23T21:00:00.000-08:00" ) 
   }
   { 
     "event_id": 941, 
@@ -16,8 +16,8 @@
     "sponsoring_sigs": [ { "sig_id": 31, "chapter_name": "Huntington Beach" } ],
     "interest_keywords": {{ "scuba", "diving", "aquatics" }},
     "price": 40.00,
-    "start_time": datetime( "2010-10-16T09:00:00:000-08:00" ),
-    "end_time": datetime( "2010-10-16T12:00:00:000-08:00" )
+    "start_time": datetime( "2010-10-16T09:00:00.000-08:00" ),
+    "end_time": datetime( "2010-10-16T12:00:00.000-08:00" )
   }
   { 
     "event_id": 1042, 
@@ -26,7 +26,7 @@
     "sponsoring_sigs": [ { "sig_id": 14, "chapter_name": "Laguna Beach" } ],
     "interest_keywords": {{ "architecture", "photography" }},
     "price": 10.00,
-    "start_time": datetime( "2011-02-23T17:00:00:000-08:00" ),
-    "end_time": datetime( "2011-02-23T19:00:00:000-08:00" ) 
+    "start_time": datetime( "2011-02-23T17:00:00.000-08:00" ),
+    "end_time": datetime( "2011-02-23T19:00:00.000-08:00" ) 
   } 
   
\ No newline at end of file
diff --git a/asterix-app/data/fn-ln.adm b/asterix-app/data/fn-ln.adm
new file mode 100644
index 0000000..7387288
--- /dev/null
+++ b/asterix-app/data/fn-ln.adm
@@ -0,0 +1,123 @@
+Hugh|Lema
+Schwan|Phil
+Noemi|Eacret
+Julio|Mattocks
+Lance|Kottke
+Kurt|Liz
+Neva|Barbeau
+Karina|Tuthill
+Maricela|Cambron
+Allan|Piland
+Javier|Makuch
+Pearlie|Aumann
+Chandra|Hase
+Christian|Convery
+Panther|Ritch
+Ted|Elsea
+Tabatha|Bladen
+Clayton|Oltman
+Sharron|Darwin
+Clayton|Durgin
+Julio|Iorio
+Emilia|Chenail
+Kenya|Almquist
+Alejandra|Lacefield
+Karina|Michelsen
+Katy|Delillo
+Benita|Kleist
+Earlene|Paluch
+Kurt|Petermann
+Starner|Stuart
+Sofia|Cuff
+Milagros|Murguia
+Margery|Haldeman
+Max|Mell
+Micco|Mercy
+Clare|Vangieson
+Elnora|Dimauro
+Pearlie|Kocian
+Clayton|Delany
+Kubik|Kuhn
+Allan|Tomes
+Lonnie|Aller
+Neil|Hurrell
+Clayton|Engles
+Javier|Gabrielson
+Allan|Alejandre
+Julio|Isa
+Roslyn|Simmerman
+Neil|Deforge
+Earlene|Marcy
+Erik|Lechuga
+Tyrone|Holtzclaw
+Lance|Hankey
+Mallory|Gladding
+Tia|Braaten
+Julio|Vanpatten
+Max|Teachout
+Karina|Wingerter
+Earlene|Wallick
+Julio|Bosket
+Lakisha|Quashie
+Milagros|Forkey
+Erik|Dobek
+Dollie|Dattilo
+Benita|Maltos
+Kurt|Biscoe
+Loraine|Housel
+Jamie|Rachal
+Liza|Fredenburg
+Ericka|Feldmann
+Lorrie|Sharon
+Roxie|Houghtaling
+Julio|Ruben
+Mathew|Fuschetto
+Allyson|Remus
+Earlene|Linebarger
+Clinton|Sick
+Ted|Caba
+Fernando|Engelke
+Mathew|Courchesne
+Cody|Vinyard
+Benita|Fravel
+Emilia|Square
+Tania|Loffredo
+Cody|Rodreguez
+Marcie|States
+Hazeltine|Susan
+Annabelle|Nimmo
+Ted|Saini
+Darren|Thorington
+Neil|Gunnerson
+Clinton|Fredricks
+Lance|Farquhar
+Tabatha|Crisler
+Max|Durney
+Carmella|Strauser
+Kelly|Carrales
+Guy|Merten
+Noreen|Ruhland
+Julio|Damore
+Selena|Truby
+Alejandra|Commons
+Allyson|Balk
+Nelson|Byun
+Christian|Reidhead
+Pearlie|Hopkin
+Nelson|Wohlers
+Marcie|Rasnake
+Hugh|Marshburn
+Mathew|Marasco
+Kurt|Veres
+Julio|Barkett
+Michael|Carey
+Chen|Li
+Sharad|Mehrotra
+Tony|Givargis
+Young Seok|Kim
+Khurram Faraaz|Mohammed
+Yingyi|Bu
+Susan|Malaika
+Roger|Sanders
+Harry|Xu
+Paul|Zubi
diff --git a/asterix-app/data/hdfs/asterix_info.txt b/asterix-app/data/hdfs/asterix_info.txt
new file mode 100644
index 0000000..a9a5596
--- /dev/null
+++ b/asterix-app/data/hdfs/asterix_info.txt
@@ -0,0 +1,4 @@
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
diff --git a/asterix-app/data/hdfs/large_text b/asterix-app/data/hdfs/large_text
new file mode 100644
index 0000000..31a394d
--- /dev/null
+++ b/asterix-app/data/hdfs/large_text
@@ -0,0 +1,136 @@
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
+The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information.
+The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters.
+ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual.
+ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information.
diff --git a/asterix-app/data/hdfs/obamatweets.adm b/asterix-app/data/hdfs/obamatweets.adm
new file mode 100644
index 0000000..2567483
--- /dev/null
+++ b/asterix-app/data/hdfs/obamatweets.adm
@@ -0,0 +1,11 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
diff --git a/asterix-app/data/hdfs/textFileS b/asterix-app/data/hdfs/textFileS
new file mode 100644
index 0000000..4bd0604
--- /dev/null
+++ b/asterix-app/data/hdfs/textFileS
Binary files differ
diff --git a/asterix-app/data/id-fn-ln.adm b/asterix-app/data/id-fn-ln.adm
new file mode 100644
index 0000000..faa342e
--- /dev/null
+++ b/asterix-app/data/id-fn-ln.adm
@@ -0,0 +1,123 @@
+1|Hugh|Lema
+2|Schwan|Phil
+3|Noemi|Eacret
+4|Julio|Mattocks
+5|Lance|Kottke
+6|Kurt|Liz
+7|Neva|Barbeau
+8|Karina|Tuthill
+9|Maricela|Cambron
+10|Allan|Piland
+11|Javier|Makuch
+12|Pearlie|Aumann
+13|Chandra|Hase
+14|Christian|Convery
+15|Panther|Ritch
+16|Ted|Elsea
+17|Tabatha|Bladen
+18|Clayton|Oltman
+19|Sharron|Darwin
+20|Clayton|Durgin
+22|Julio|Iorio
+23|Emilia|Chenail
+24|Kenya|Almquist
+25|Alejandra|Lacefield
+26|Karina|Michelsen
+27|Katy|Delillo
+28|Benita|Kleist
+29|Earlene|Paluch
+30|Kurt|Petermann
+31|Starner|Stuart
+32|Sofia|Cuff
+33|Milagros|Murguia
+34|Margery|Haldeman
+35|Max|Mell
+36|Micco|Mercy
+37|Clare|Vangieson
+38|Elnora|Dimauro
+39|Pearlie|Kocian
+40|Clayton|Delany
+41|Kubik|Kuhn
+42|Allan|Tomes
+43|Lonnie|Aller
+44|Neil|Hurrell
+45|Clayton|Engles
+46|Javier|Gabrielson
+47|Allan|Alejandre
+48|Julio|Isa
+49|Roslyn|Simmerman
+50|Neil|Deforge
+51|Earlene|Marcy
+52|Erik|Lechuga
+53|Tyrone|Holtzclaw
+54|Lance|Hankey
+55|Mallory|Gladding
+56|Tia|Braaten
+57|Julio|Vanpatten
+58|Max|Teachout
+59|Karina|Wingerter
+60|Earlene|Wallick
+61|Julio|Bosket
+62|Lakisha|Quashie
+63|Milagros|Forkey
+64|Erik|Dobek
+65|Dollie|Dattilo
+66|Benita|Maltos
+67|Kurt|Biscoe
+68|Loraine|Housel
+69|Jamie|Rachal
+70|Liza|Fredenburg
+71|Ericka|Feldmann
+72|Lorrie|Sharon
+73|Roxie|Houghtaling
+74|Julio|Ruben
+75|Mathew|Fuschetto
+76|Allyson|Remus
+77|Earlene|Linebarger
+78|Clinton|Sick
+79|Ted|Caba
+80|Fernando|Engelke
+81|Mathew|Courchesne
+82|Cody|Vinyard
+83|Benita|Fravel
+84|Emilia|Square
+85|Tania|Loffredo
+86|Cody|Rodreguez
+87|Marcie|States
+88|Hazeltine|Susan
+89|Annabelle|Nimmo
+90|Ted|Saini
+91|Darren|Thorington
+92|Neil|Gunnerson
+93|Clinton|Fredricks
+94|Lance|Farquhar
+95|Tabatha|Crisler
+96|Max|Durney
+97|Carmella|Strauser
+98|Kelly|Carrales
+99|Guy|Merten
+100|Noreen|Ruhland
+101|Julio|Damore
+102|Selena|Truby
+103|Alejandra|Commons
+104|Allyson|Balk
+105|Nelson|Byun
+106|Christian|Reidhead
+107|Pearlie|Hopkin
+108|Nelson|Wohlers
+109|Marcie|Rasnake
+110|Hugh|Marshburn
+111|Mathew|Marasco
+112|Kurt|Veres
+113|Julio|Barkett
+114|Michael|Carey
+115|Chen|Li
+116|Sharad|Mehrotra
+117|Tony|Givargis
+118|Young Seok|Kim
+119|Khurram Faraaz|Mohammed
+120|Yingyi|Bu
+121|Susan|Malaika
+122|Roger|Sanders
+123|Harry|Xu
+124|Paul|Zubi
diff --git a/asterix-app/data/names.adm b/asterix-app/data/names.adm
new file mode 100644
index 0000000..35c137e
--- /dev/null
+++ b/asterix-app/data/names.adm
@@ -0,0 +1,120 @@
+711|Hugh|Lema|25|HR
+721|Schwan|Phil|34|Payroll
+732|Noemi|Eacret|56|HR
+741|Julio|Mattocks|38|Sales
+751|Lance|Kottke|34|IT
+761|Kurt|Liz|32|HR
+771|Neva|Barbeau|45|Sales
+781|Karina|Tuthill|46|Payroll
+791|Maricela|Cambron|36|IT
+110|Allan|Piland|29|HR
+101|Javier|Makuch|28|IT
+112|Pearlie|Aumann|31|Payroll
+113|Chandra|Hase|34|Sales
+114|Christian|Convery|28|HR
+115|Panther|Ritch|26|IT
+116|Ted|Elsea|26|IT
+117|Tabatha|Bladen|25|HR
+118|Clayton|Oltman|42|Sales
+119|Sharron|Darwin|32|Payroll
+210|Clayton|Durgin|52|HR
+299|Julio|Iorio|37|IT
+212|Emilia|Chenail|26|Sales
+213|Kenya|Almquist|43|Payroll
+214|Alejandra|Lacefield|41|HR
+215|Karina|Michelsen|46|IT
+216|Katy|Delillo|36|IT
+217|Benita|Kleist|37|HR
+218|Earlene|Paluch|31|IT
+219|Kurt|Petermann|27|Payroll
+915|Starner|Stuart|25|Sales
+925|Sofia|Cuff|30|HR
+935|Milagros|Murguia|31|IT
+945|Margery|Haldeman|32|IT
+955|Max|Mell|33|HR
+965|Micco|Mercy|31|Payroll
+975|Clare|Vangieson|34|IT
+985|Elnora|Dimauro|35|Sales
+995|Pearlie|Kocian|38|HR
+809|Clayton|Delany|23|IT
+811|Kubik|Kuhn|27|HR
+821|Allan|Tomes|29|Payroll
+831|Lonnie|Aller|33|Sales
+841|Neil|Hurrell|26|IT
+851|Clayton|Engles|41|HR
+861|Javier|Gabrielson|39|Payroll
+871|Allan|Alejandre|48|IT
+881|Julio|Isa|38|Sales
+891|Roslyn|Simmerman|31|IT
+601|Neil|Deforge|26|HR
+611|Earlene|Marcy|32|IT
+621|Erik|Lechuga|42|Payroll
+631|Tyrone|Holtzclaw|34|Sales
+641|Lance|Hankey|35|Sales
+651|Mallory|Gladding|31|HR
+661|Tia|Braaten|40|IT
+671|Julio|Vanpatten|30|Payroll
+681|Max|Teachout|34|IT
+691|Karina|Wingerter|31|IT
+8301|Earlene|Wallick|26|HR
+8338|Julio|Bosket|28|Payroll
+5438|Lakisha|Quashie|29|HR
+538|Milagros|Forkey|34|Sales
+504|Erik|Dobek|29|IT
+584|Dollie|Dattilo|32|Payroll
+524|Benita|Maltos|33|IT
+534|Kurt|Biscoe|36|HR
+544|Loraine|Housel|30|Sales
+554|Jamie|Rachal|30|IT
+564|Liza|Fredenburg|37|IT
+574|Ericka|Feldmann|29|Sales
+589|Lorrie|Sharon|27|IT
+594|Roxie|Houghtaling|40|Payroll
+514|Julio|Ruben|41|IT
+414|Mathew|Fuschetto|34|HR
+424|Allyson|Remus|32|IT
+434|Earlene|Linebarger|26|Payroll
+444|Clinton|Sick|29|IT
+454|Ted|Caba|28|HR|Sales
+464|Fernando|Engelke|39|IT
+474|Mathew|Courchesne|31|IT
+484|Cody|Vinyard|36|Payroll
+494|Benita|Fravel|33|Sales
+404|Emilia|Square|32|IT
+1263|Tania|Loffredo|25|IT
+363|Cody|Rodreguez|26|IT
+463|Marcie|States|28|IT
+3563|Hazeltine|Susan|29|Sales
+7663|Annabelle|Nimmo|30|Payroll
+9763|Ted|Saini|31|IT
+1863|Darren|Thorington|32|Sales
+2963|Neil|Gunnerson|34|IT
+1410|Clinton|Fredricks|34|IT
+1411|Lance|Farquhar|32|HR
+1412|Tabatha|Crisler|33|IT
+1413|Max|Durney|29|IT
+1414|Carmella|Strauser|30|Payroll
+1415|Kelly|Carrales|40|IT
+1416|Guy|Merten|29|Sales
+1417|Noreen|Ruhland|29|IT
+1418|Julio|Damore|27|Sales
+1419|Selena|Truby|25|HR
+1420|Alejandra|Commons|30|Sales
+1421|Allyson|Balk|30|IT
+1422|Nelson|Byun|40|Sales
+1423|Christian|Reidhead|40|IT
+1424|Pearlie|Hopkin|48|Payroll
+1425|Nelson|Wohlers|41|HR
+1426|Marcie|Rasnake|42|Sales
+1427|Hugh|Marshburn|43|Payroll
+1428|Mathew|Marasco|45|Sales
+1429|Kurt|Veres|32|IT
+1430|Julio|Barkett|39|Sales
+4727|Michael|Carey|50|Payroll
+2333|Chen|Li|42|HR
+7444|Sharad|Mehrotra|42|Sales
+9555|Tony|Givargis|40|Sales
+3666|Young Seok|Kim|35|Payroll
+9941|Khurram Faraaz|Mohammed|30|HR
+1007|Yingyi|Bu|27|IT
+1999|Susan|Malaika|42|HR
diff --git a/asterix-app/data/nontagged/allData.json b/asterix-app/data/nontagged/allData.json
index e70257a..5f7bf3b 100644
--- a/asterix-app/data/nontagged/allData.json
+++ b/asterix-app/data/nontagged/allData.json
@@ -1,2 +1,2 @@
-{ "id": 10, "name": string("Nancy"), "age": 32.5f, "salary": 12.000 ,"married": boolean("true"), "interests": {{"reading", "writing"}}, "children": ["Brad", "Scott"],  "address": {  "number": 8389,  "street": "Hill St.",  "city": "Mountain View" }, "dob": date("-2011-01-27"), "time": time("12:20:30Z"), "datetime": datetime("-1951-12-27T12:20:30"),  "duration": duration("D10Y11M12DT10H50M30S"),  "location2d": point("41.00,44.00"),  "location3d": point3d("44.00,13.00,41.00"), "line" : line("10.1,11.1 10.2,11.2"), "polygon" : polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), "circle" : circle("10.1,11.1 10.2") }
+{ "id": 10, "name": string("Nancy"), "age": 32.5f, "salary": 12.000 ,"married": boolean("true"), "interests": {{"reading", "writing"}}, "children": ["Brad", "Scott"],  "address": {  "number": 8389,  "street": "Hill St.",  "city": "Mountain View" }, "dob": date("-2011-01-27"), "time": time("12:20:30Z"), "datetime": datetime("-1951-12-27T12:20:30"),  "duration": duration("P10Y11M12DT10H50M30S"),  "location2d": point("41.00,44.00"),  "location3d": point3d("44.00,13.00,41.00"), "line" : line("10.1,11.1 10.2,11.2"), "polygon" : polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), "circle" : circle("10.1,11.1 10.2") }
 
diff --git a/asterix-app/data/nontagged/tempData.json b/asterix-app/data/nontagged/tempData.json
index 1fef3ab..a40a254 100644
--- a/asterix-app/data/nontagged/tempData.json
+++ b/asterix-app/data/nontagged/tempData.json
@@ -1,2 +1,2 @@
-{ "id": 10, "date": date("2011-01-27"), "time": time("12:20:30"), "datetime": datetime("1951-12-27T12:20:30"),  "duration": duration("D30Y10M15DT10H30M50S"), "date2": date("2011-01-27-05:00"), "time2": time("12:20:30:999-05:00"), "datetime2": datetime("1951-12-27T12:20:30:250-08:45"),  "duration2": duration("D10M15DT10H50S"), "date3": date("-2011-01-27-05:00"), "time3": time("12:20:30:999Z"), "datetime3": datetime("-1951-12-27T12:20:30:250-08:15"),  "duration3": duration("-DT50S"), "date4": date("-2011-01-27Z"), "time4": time("12:20:30Z"), "datetime4": datetime("-1951-12-27T12:20:30:250Z"), "duration4": duration("-D10M"), "date5": date("2011-01-27"), "time5": time("12:20:30"), "datetime5": datetime("1951-12-27T12:20:30"),  "duration5": duration("D30Y10M15DT10H30M50S") }
+{ "id": 10, "date": date("2011-01-27"), "time": time("12:20:30"), "datetime": datetime("1951-12-27T12:20:30"),  "duration": duration("P30Y10M15DT10H30M50S"), "date2": date("2011-01-27"), "time2": time("12:20:30.999-05:00"), "datetime2": datetime("1951-12-27T12:20:30.250-08:45"),  "duration2": duration("P10M15DT10H50S"), "date3": date("-2011-01-27"), "time3": time("12:20:30.999Z"), "datetime3": datetime("-1951-12-27T12:20:30.250-08:15"),  "duration3": duration("-PT50S"), "date4": date("-2011-01-27"), "time4": time("12:20:30Z"), "datetime4": datetime("-1951-12-27T12:20:30.250Z"), "duration4": duration("-P10M"), "date5": date("2011-01-27"), "time5": time("12:20:30"), "datetime5": datetime("1951-12-27T12:20:30"),  "duration5": duration("P30Y10M15DT10H30M50S") }
 
diff --git a/asterix-app/data/nontagged/tempData.txt b/asterix-app/data/nontagged/tempData.txt
index 6615812..0afeb6f 100644
--- a/asterix-app/data/nontagged/tempData.txt
+++ b/asterix-app/data/nontagged/tempData.txt
@@ -1,4 +1,4 @@
-10|date("2011-01-27")|time("12:20:30")|datetime("1951-12-27T12:20:30")|duration("D30Y10M15DT10H30M50S")
-20|date("2011-01-27-05:00")|time("12:20:30:999-05:00")|datetime("1951-12-27T12:20:30:250-08:45")|duration("D10M15DT10H50S")
-30|date("-2011-01-27-05:00")|time("12:20:30:999Z")|datetime("-1951-12-27T12:20:30:250-08:15")|duration("-DT50S")
-40|date("-2011-01-27Z")|time("12:20:30Z")|datetime("-1951-12-27T12:20:30:250Z")|duration("-D10M")
+10|date("2011-01-27")|time("12:20:30")|datetime("1951-12-27T12:20:30")|duration("P30Y10M15DT10H30M50S")
+20|date("2011-01-27")|time("12:20:30.999-05:00")|datetime("1951-12-27T12:20:30.250-08:45")|duration("P10M15DT10H50S")
+30|date("-2011-01-27")|time("12:20:30.999Z")|datetime("-1951-12-27T12:20:30.250-08:15")|duration("-PT50S")
+40|date("-2011-01-27")|time("12:20:30Z")|datetime("-1951-12-27T12:20:30.250Z")|duration("-P10M")
diff --git a/asterix-app/data/semistructured/co1k_olist/customer.adm b/asterix-app/data/semistructured/co1k_olist/customer.adm
new file mode 100644
index 0000000..dfe6134
--- /dev/null
+++ b/asterix-app/data/semistructured/co1k_olist/customer.adm
@@ -0,0 +1,1000 @@
+{  "cid": 748,  "name": "Petra Ganes",  "interests": [  ],  "children": [ {  "name": "Perry Ganes" }, {  "name": "Krista Ganes",  "age": 54 }, {  "name": "Kayce Ganes",  "age": 52 }, {  "name": "Eleni Ganes" } ] }
+{  "cid": 871,  "name": "Lona Dacus",  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Pablo Dacus" }, {  "name": "Darlene Dacus",  "age": 45 }, {  "name": "Darius Dacus",  "age": 31 }, {  "name": "Cordia Dacus" } ] }
+{  "cid": 808,  "name": "Brande Decius",  "interests": [ "Basketball", "Fishing", "Puzzles" ],  "children": [ {  "name": "Li Decius",  "age": 56 }, {  "name": "Eusebio Decius",  "age": 50 }, {  "name": "Clementina Decius",  "age": 29 } ] }
+{  "cid": 276,  "name": "Denyse Groth",  "age": 81,  "address": {  "number": 6825,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Databases", "Fishing", "Movies" ],  "children": [ {  "name": "Marilee Groth",  "age": 12 }, {  "name": "Lyla Groth",  "age": 46 }, {  "name": "Sarah Groth" } ] }
+{  "cid": 988,  "name": "Dagmar Plasky",  "age": 89,  "address": {  "number": 1219,  "street": "Park St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Dann Plasky",  "age": 59 }, {  "name": "Raye Plasky" }, {  "name": "Sammie Plasky",  "age": 36 }, {  "name": "Kasi Plasky",  "age": 24 } ] }
+{  "cid": 909,  "name": "Mariko Sharar",  "interests": [ "Squash", "Movies", "Computers" ],  "children": [  ] }
+{  "cid": 233,  "name": "Sammy Coalter",  "interests": [ "Fishing", "Base Jumping" ],  "children": [ {  "name": "Twana Coalter" }, {  "name": "Nenita Coalter",  "age": 30 } ] }
+{  "cid": 896,  "name": "Georgina Even",  "interests": [ "Music", "Databases", "Base Jumping", "Cigars" ],  "children": [ {  "name": "Angelica Even",  "age": 25 } ] }
+{  "cid": 772,  "name": "Shan Renney",  "interests": [ "Books", "Books", "Bass", "Cooking" ],  "children": [ {  "name": "Bessie Renney",  "age": 32 }, {  "name": "Dionna Renney",  "age": 46 }, {  "name": "Vonda Renney" }, {  "name": "Pamella Renney",  "age": 16 } ] }
+{  "cid": 723,  "name": "Teressa Krol",  "age": 22,  "address": {  "number": 8036,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Music" ],  "children": [ {  "name": "Tuan Krol" }, {  "name": "Judi Krol" }, {  "name": "Maddie Krol" } ] }
+{  "cid": 43,  "name": "Rina Bonyai",  "age": 77,  "address": {  "number": 3640,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Tennis", "Walking", "Computers", "Books" ],  "children": [ {  "name": "Mirta Bonyai",  "age": 51 }, {  "name": "Terrance Bonyai" }, {  "name": "Maria Bonyai",  "age": 51 }, {  "name": "Dulcie Bonyai" } ] }
+{  "cid": 816,  "name": "Cheyenne Eddie",  "interests": [ "Walking", "Cooking" ],  "children": [ {  "name": "Kathe Eddie" }, {  "name": "Charles Eddie" } ] }
+{  "cid": 302,  "name": "Rosalie Laderer",  "interests": [ "Tennis", "Movies", "Movies" ],  "children": [ {  "name": "Moriah Laderer" }, {  "name": "Liana Laderer",  "age": 21 }, {  "name": "Genia Laderer",  "age": 45 } ] }
+{  "cid": 686,  "name": "Trudi Arnette",  "interests": [  ],  "children": [ {  "name": "Adrian Arnette",  "age": 43 }, {  "name": "Hulda Arnette",  "age": 34 }, {  "name": "Shamika Arnette" } ] }
+{  "cid": 565,  "name": "Shantell Rima",  "age": 82,  "address": {  "number": 205,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Boyce Rima",  "age": 67 }, {  "name": "Woodrow Rima",  "age": 18 }, {  "name": "Helene Rima" }, {  "name": "David Rima" } ] }
+{  "cid": 334,  "name": "Valarie Tattershall",  "interests": [ "Books", "Walking", "Skiing", "Movies" ],  "children": [  ] }
+{  "cid": 715,  "name": "Zoraida Scribner",  "interests": [  ],  "children": [ {  "name": "Ninfa Scribner",  "age": 31 } ] }
+{  "cid": 963,  "name": "Mila Ditmars",  "age": 29,  "address": {  "number": 5850,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [ "Music" ],  "children": [  ] }
+{  "cid": 966,  "name": "Brigitte Quimby",  "age": 13,  "address": {  "number": 203,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Skiing", "Tennis" ],  "children": [ {  "name": "Ilona Quimby" }, {  "name": "Shaunte Quimby" }, {  "name": "Lorie Quimby" } ] }
+{  "cid": 826,  "name": "Ressie Feenstra",  "interests": [  ],  "children": [ {  "name": "Sasha Feenstra" } ] }
+{  "cid": 238,  "name": "Marcelina Redic",  "interests": [ "Cigars", "Cigars", "Coffee" ],  "children": [ {  "name": "Renate Redic" }, {  "name": "Kyoko Redic" }, {  "name": "Dorthey Redic" } ] }
+{  "cid": 454,  "name": "Irving Lhuillier",  "interests": [  ],  "children": [ {  "name": "Emile Lhuillier" }, {  "name": "Albert Lhuillier" }, {  "name": "Ingeborg Lhuillier",  "age": 23 }, {  "name": "Shila Lhuillier",  "age": 55 } ] }
+{  "cid": 537,  "name": "Mara Hugar",  "interests": [ "Fishing", "Skiing", "Skiing" ],  "children": [ {  "name": "Krista Hugar" } ] }
+{  "cid": 794,  "name": "Annabel Leins",  "age": 75,  "address": {  "number": 9761,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Bass", "Computers", "Bass", "Cigars" ],  "children": [ {  "name": "Oswaldo Leins",  "age": 21 } ] }
+{  "cid": 483,  "name": "Elsa Vigen",  "interests": [ "Wine", "Databases" ],  "children": [ {  "name": "Larae Vigen" }, {  "name": "Elwood Vigen" } ] }
+{  "cid": 746,  "name": "Rosalinda Pola",  "interests": [ "Cooking", "Computers", "Walking", "Cigars" ],  "children": [ {  "name": "Maribel Pola",  "age": 19 }, {  "name": "Chaya Pola" }, {  "name": "Shauna Pola" }, {  "name": "Elenora Pola",  "age": 22 } ] }
+{  "cid": 559,  "name": "Carolyne Shiroma",  "interests": [ "Movies", "Running" ],  "children": [ {  "name": "Ying Shiroma",  "age": 57 } ] }
+{  "cid": 9,  "name": "Dreama Nuccio",  "age": 55,  "address": {  "number": 95,  "street": "Main St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Ricardo Nuccio",  "age": 28 }, {  "name": "See Nuccio",  "age": 34 } ] }
+{  "cid": 844,  "name": "Madelene Ten",  "interests": [ "Squash" ],  "children": [ {  "name": "Johanne Ten",  "age": 39 }, {  "name": "Lurline Ten" }, {  "name": "Cathy Ten",  "age": 49 } ] }
+{  "cid": 526,  "name": "Catrice Swantak",  "interests": [ "Music", "Cigars", "Base Jumping", "Wine" ],  "children": [ {  "name": "Eun Swantak" }, {  "name": "Waylon Swantak" }, {  "name": "Carroll Swantak" } ] }
+{  "cid": 616,  "name": "Shanda Dussault",  "interests": [  ],  "children": [ {  "name": "Darrick Dussault" } ] }
+{  "cid": 217,  "name": "Scott Fulks",  "interests": [ "Computers" ],  "children": [  ] }
+{  "cid": 864,  "name": "Katharyn Zanotti",  "age": 62,  "address": {  "number": 8336,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Magan Zanotti" }, {  "name": "Jacinto Zanotti" } ] }
+{  "cid": 902,  "name": "Tajuana Foote",  "interests": [ "Walking", "Cooking", "Squash", "Tennis" ],  "children": [ {  "name": "Lesia Foote",  "age": 14 }, {  "name": "Rene Foote",  "age": 11 }, {  "name": "Meryl Foote" }, {  "name": "Vanetta Foote" } ] }
+{  "cid": 964,  "name": "Stephany Soders",  "interests": [ "Tennis", "Wine", "Computers" ],  "children": [  ] }
+{  "cid": 888,  "name": "Natalie Nocella",  "age": 66,  "address": {  "number": 2856,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Noel Nocella",  "age": 26 }, {  "name": "Damon Nocella",  "age": 29 }, {  "name": "Joesph Nocella",  "age": 33 }, {  "name": "Nidia Nocella" } ] }
+{  "cid": 991,  "name": "Leonel Toepperwein",  "age": 62,  "address": {  "number": 8356,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Coffee", "Books" ],  "children": [ {  "name": "Sean Toepperwein" }, {  "name": "Charline Toepperwein",  "age": 49 }, {  "name": "Hattie Toepperwein",  "age": 22 }, {  "name": "Melida Toepperwein" } ] }
+{  "cid": 619,  "name": "Luanne Elmquist",  "interests": [  ],  "children": [ {  "name": "Burton Elmquist",  "age": 11 }, {  "name": "Melvin Elmquist" } ] }
+{  "cid": 20,  "name": "Annice Fulwider",  "age": 59,  "address": {  "number": 4257,  "street": "Park St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Arica Fulwider",  "age": 47 }, {  "name": "Charlotte Fulwider",  "age": 16 }, {  "name": "Robbi Fulwider",  "age": 29 } ] }
+{  "cid": 905,  "name": "Pandora Azzarella",  "interests": [  ],  "children": [ {  "name": "Lane Azzarella" }, {  "name": "Joi Azzarella",  "age": 19 } ] }
+{  "cid": 839,  "name": "Annetta Bertsche",  "age": 31,  "address": {  "number": 5823,  "street": "Hill St.",  "city": "Portland" },  "interests": [ "Music", "Coffee", "Cigars", "Computers" ],  "children": [ {  "name": "Annita Bertsche" }, {  "name": "Violette Bertsche",  "age": 13 }, {  "name": "An Bertsche" } ] }
+{  "cid": 873,  "name": "Artie Gongalves",  "age": 74,  "address": {  "number": 584,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Basketball", "Databases", "Puzzles", "Skiing" ],  "children": [ {  "name": "Chester Gongalves",  "age": 10 } ] }
+{  "cid": 456,  "name": "Kim Cervera",  "age": 89,  "address": {  "number": 3967,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Winona Cervera",  "age": 37 }, {  "name": "Shanice Cervera" }, {  "name": "Michaele Cervera" } ] }
+{  "cid": 666,  "name": "Pamila Burzlaff",  "age": 68,  "address": {  "number": 6543,  "street": "View St.",  "city": "Portland" },  "interests": [ "Squash", "Cigars", "Movies" ],  "children": [  ] }
+{  "cid": 64,  "name": "Victor Susor",  "age": 32,  "address": {  "number": 1690,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Running", "Computers" ],  "children": [  ] }
+{  "cid": 187,  "name": "Seema Hartsch",  "age": 80,  "address": {  "number": 6629,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Coffee", "Coffee", "Cigars" ],  "children": [ {  "name": "Suellen Hartsch" }, {  "name": "Pennie Hartsch",  "age": 20 }, {  "name": "Aubrey Hartsch" }, {  "name": "Randy Hartsch",  "age": 32 } ] }
+{  "cid": 771,  "name": "Marisela Tredo",  "interests": [ "Tennis", "Coffee" ],  "children": [ {  "name": "Ardell Tredo",  "age": 21 }, {  "name": "Evelynn Tredo",  "age": 16 } ] }
+{  "cid": 859,  "name": "Mozelle Catillo",  "age": 61,  "address": {  "number": 253,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Cooking", "Wine" ],  "children": [  ] }
+{  "cid": 609,  "name": "Mindi Dieudonne",  "interests": [ "Puzzles" ],  "children": [  ] }
+{  "cid": 521,  "name": "Frankie Hofmann",  "interests": [ "Databases", "Movies" ],  "children": [ {  "name": "Shirlee Hofmann",  "age": 32 }, {  "name": "Jacque Hofmann",  "age": 23 }, {  "name": "Jazmin Hofmann" }, {  "name": "Serena Hofmann",  "age": 56 } ] }
+{  "cid": 994,  "name": "Isa Gravelle",  "interests": [  ],  "children": [ {  "name": "Lashonda Gravelle" }, {  "name": "Carry Gravelle",  "age": 58 } ] }
+{  "cid": 5,  "name": "Heide Naifeh",  "interests": [ "Music", "Databases" ],  "children": [ {  "name": "Deirdre Naifeh" }, {  "name": "Jacquelyne Naifeh",  "age": 39 } ] }
+{  "cid": 531,  "name": "Camelia Yoes",  "interests": [  ],  "children": [  ] }
+{  "cid": 280,  "name": "Marlo Maung",  "interests": [ "Movies" ],  "children": [ {  "name": "Harold Maung" } ] }
+{  "cid": 507,  "name": "Yuk Flanegan",  "interests": [ "Puzzles", "Puzzles", "Squash" ],  "children": [ {  "name": "Alexander Flanegan" } ] }
+{  "cid": 865,  "name": "Moon Marino",  "age": 43,  "address": {  "number": 5710,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Skiing" ],  "children": [ {  "name": "Markita Marino",  "age": 10 } ] }
+{  "cid": 527,  "name": "Lance Kenison",  "age": 77,  "address": {  "number": 8750,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Squash", "Cooking", "Bass", "Puzzles" ],  "children": [ {  "name": "Youlanda Kenison" }, {  "name": "Lavon Kenison" }, {  "name": "Maryann Kenison",  "age": 60 }, {  "name": "Kecia Kenison",  "age": 50 } ] }
+{  "cid": 305,  "name": "Tuyet Leinbach",  "interests": [ "Puzzles", "Walking" ],  "children": [  ] }
+{  "cid": 75,  "name": "Monroe Fansher",  "interests": [ "Base Jumping", "Tennis", "Books", "Cigars" ],  "children": [ {  "name": "Honey Fansher" }, {  "name": "Sima Fansher",  "age": 22 }, {  "name": "Cassaundra Fansher" } ] }
+{  "cid": 320,  "name": "Charley Hermenegildo",  "interests": [  ],  "children": [ {  "name": "Melda Hermenegildo",  "age": 51 }, {  "name": "Lashon Hermenegildo" } ] }
+{  "cid": 13,  "name": "Nicol Kolmer",  "interests": [ "Coffee" ],  "children": [ {  "name": "Erika Kolmer",  "age": 40 }, {  "name": "Justin Kolmer" }, {  "name": "Dorathy Kolmer" }, {  "name": "Anastacia Kolmer",  "age": 27 } ] }
+{  "cid": 956,  "name": "Laquanda Bynoe",  "age": 79,  "address": {  "number": 6122,  "street": "Main St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Joel Bynoe" }, {  "name": "Brian Bynoe",  "age": 61 }, {  "name": "Shana Bynoe" } ] }
+{  "cid": 469,  "name": "Hilda Grabe",  "age": 36,  "address": {  "number": 9745,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Skiing", "Bass", "Coffee", "Music" ],  "children": [  ] }
+{  "cid": 558,  "name": "Dorie Schomer",  "age": 58,  "address": {  "number": 9295,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Fishing", "Bass", "Cigars", "Movies" ],  "children": [ {  "name": "Duncan Schomer" }, {  "name": "Donn Schomer",  "age": 14 }, {  "name": "Franklyn Schomer",  "age": 41 }, {  "name": "Valarie Schomer" } ] }
+{  "cid": 116,  "name": "Conrad Zozaya",  "age": 81,  "address": {  "number": 1667,  "street": "View St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Jenette Zozaya",  "age": 17 } ] }
+{  "cid": 870,  "name": "Natosha Lufsey",  "interests": [ "Cigars", "Walking" ],  "children": [ {  "name": "Tiffany Lufsey" } ] }
+{  "cid": 279,  "name": "Saundra Croan",  "interests": [ "Movies" ],  "children": [ {  "name": "Jena Croan",  "age": 37 }, {  "name": "Sarai Croan" }, {  "name": "Junita Croan" }, {  "name": "Ferdinand Croan",  "age": 43 } ] }
+{  "cid": 529,  "name": "Cinderella Lewis",  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Flor Lewis" }, {  "name": "Alonzo Lewis",  "age": 23 } ] }
+{  "cid": 749,  "name": "Pearle Mauney",  "interests": [  ],  "children": [ {  "name": "Delpha Mauney" }, {  "name": "Micki Mauney",  "age": 28 }, {  "name": "Wayne Mauney" } ] }
+{  "cid": 463,  "name": "Mika Rininger",  "interests": [ "Databases", "Cooking" ],  "children": [ {  "name": "Inez Rininger",  "age": 58 }, {  "name": "Betty Rininger" }, {  "name": "Laurie Rininger",  "age": 48 }, {  "name": "Billie Rininger" } ] }
+{  "cid": 329,  "name": "Dennis Cremins",  "interests": [ "Movies", "Fishing", "Music", "Squash" ],  "children": [ {  "name": "Destiny Cremins" }, {  "name": "Garret Cremins",  "age": 34 } ] }
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+{  "cid": 729,  "name": "Karren Defrain",  "interests": [ "Books", "Walking", "Puzzles", "Tennis" ],  "children": [ {  "name": "Usha Defrain" }, {  "name": "Ahmed Defrain",  "age": 14 }, {  "name": "Kathryn Defrain" } ] }
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+{  "cid": 758,  "name": "Akiko Hoenstine",  "age": 56,  "address": {  "number": 8888,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Movies", "Walking" ],  "children": [ {  "name": "Maren Hoenstine" }, {  "name": "Tyler Hoenstine" }, {  "name": "Jesse Hoenstine",  "age": 40 } ] }
+{  "cid": 685,  "name": "Lois Mcglothian",  "interests": [ "Movies", "Skiing" ],  "children": [ {  "name": "Karon Mcglothian",  "age": 35 } ] }
+{  "cid": 949,  "name": "Elissa Rogue",  "interests": [ "Fishing", "Music" ],  "children": [ {  "name": "Noriko Rogue",  "age": 41 }, {  "name": "Lavona Rogue",  "age": 39 } ] }
+{  "cid": 841,  "name": "Omar Enwall",  "interests": [ "Skiing", "Skiing", "Books" ],  "children": [ {  "name": "Kirby Enwall",  "age": 31 }, {  "name": "Cythia Enwall",  "age": 24 }, {  "name": "August Enwall" } ] }
+{  "cid": 936,  "name": "Berna Whyman",  "interests": [ "Bass", "Cooking", "Running", "Tennis" ],  "children": [ {  "name": "Marci Whyman",  "age": 10 }, {  "name": "Hyon Whyman" }, {  "name": "Jessia Whyman" } ] }
+{  "cid": 768,  "name": "Adelina Troendle",  "interests": [ "Computers" ],  "children": [ {  "name": "Lenna Troendle",  "age": 51 }, {  "name": "Ines Troendle",  "age": 48 }, {  "name": "Ora Troendle" } ] }
+{  "cid": 499,  "name": "Carlita Tarlton",  "age": 43,  "address": {  "number": 9148,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Computers", "Base Jumping", "Video Games" ],  "children": [  ] }
+{  "cid": 48,  "name": "Delia Salveson",  "age": 44,  "address": {  "number": 5596,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Cigars", "Running", "Walking", "Running" ],  "children": [ {  "name": "Logan Salveson",  "age": 21 }, {  "name": "Temple Salveson",  "age": 17 }, {  "name": "Kimi Salveson" }, {  "name": "Jacob Salveson",  "age": 20 } ] }
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+{  "cid": 524,  "name": "Rickie Manche",  "interests": [  ],  "children": [  ] }
+{  "cid": 214,  "name": "Louvenia Zaffalon",  "interests": [ "Skiing", "Books" ],  "children": [  ] }
+{  "cid": 971,  "name": "Loura Paap",  "interests": [ "Walking", "Music", "Base Jumping", "Cooking" ],  "children": [ {  "name": "Eliza Paap",  "age": 54 }, {  "name": "Dortha Paap" }, {  "name": "Robin Paap" } ] }
+{  "cid": 125,  "name": "Leigh Pusey",  "interests": [  ],  "children": [ {  "name": "Elbert Pusey",  "age": 44 }, {  "name": "Golden Pusey" }, {  "name": "Maria Pusey" } ] }
+{  "cid": 733,  "name": "Edie Stager",  "age": 26,  "address": {  "number": 2691,  "street": "Park St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Ethyl Stager",  "age": 10 } ] }
+{  "cid": 644,  "name": "Julio Gilly",  "interests": [ "Puzzles" ],  "children": [ {  "name": "Eleonore Gilly" } ] }
+{  "cid": 693,  "name": "Ela Crisan",  "interests": [ "Movies" ],  "children": [  ] }
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+{  "cid": 28,  "name": "Ariana Gillert",  "age": 54,  "address": {  "number": 7331,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Databases" ],  "children": [ {  "name": "Inge Gillert" }, {  "name": "Jeraldine Gillert",  "age": 13 } ] }
+{  "cid": 366,  "name": "Rosia Wenzinger",  "interests": [  ],  "children": [  ] }
+{  "cid": 501,  "name": "Alyce Coant",  "interests": [ "Music", "Base Jumping" ],  "children": [ {  "name": "Elyse Coant",  "age": 50 } ] }
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+{  "cid": 46,  "name": "Columbus Huntington",  "age": 22,  "address": {  "number": 3809,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Movies" ],  "children": [ {  "name": "Dana Huntington",  "age": 10 }, {  "name": "Rosa Huntington" } ] }
+{  "cid": 326,  "name": "Tad Tellers",  "interests": [ "Books", "Tennis", "Base Jumping" ],  "children": [ {  "name": "Fannie Tellers" } ] }
+{  "cid": 929,  "name": "Jean Guitierrez",  "age": 75,  "address": {  "number": 9736,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Wine", "Wine", "Fishing" ],  "children": [  ] }
+{  "cid": 227,  "name": "Carlos Skyes",  "interests": [  ],  "children": [ {  "name": "Cortney Skyes",  "age": 32 } ] }
+{  "cid": 965,  "name": "Mellie Risen",  "interests": [ "Tennis" ],  "children": [ {  "name": "Coreen Risen",  "age": 36 }, {  "name": "Faith Risen",  "age": 34 }, {  "name": "Crystle Risen",  "age": 54 } ] }
+{  "cid": 987,  "name": "Sharolyn Demchak",  "age": 36,  "address": {  "number": 4672,  "street": "Lake St.",  "city": "San Jose" },  "interests": [  ],  "children": [  ] }
+{  "cid": 972,  "name": "Ryan Dudgeon",  "interests": [ "Cigars", "Movies", "Cigars", "Books" ],  "children": [ {  "name": "Candelaria Dudgeon",  "age": 48 }, {  "name": "Donya Dudgeon" } ] }
+{  "cid": 716,  "name": "Deirdre Bruderer",  "interests": [ "Computers", "Wine" ],  "children": [ {  "name": "Coralee Bruderer" }, {  "name": "Mina Bruderer" }, {  "name": "Lindsey Bruderer",  "age": 35 }, {  "name": "Yi Bruderer" } ] }
+{  "cid": 83,  "name": "Filiberto Couillard",  "interests": [ "Cooking", "Books" ],  "children": [ {  "name": "Diane Couillard",  "age": 19 }, {  "name": "Asa Couillard",  "age": 23 }, {  "name": "Zaida Couillard",  "age": 57 }, {  "name": "Shavonne Couillard" } ] }
+{  "cid": 576,  "name": "Dean Waltenbaugh",  "age": 47,  "address": {  "number": 9478,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Music", "Base Jumping", "Puzzles", "Wine" ],  "children": [ {  "name": "Judy Waltenbaugh" }, {  "name": "Omer Waltenbaugh",  "age": 11 }, {  "name": "Samuel Waltenbaugh",  "age": 21 }, {  "name": "Neville Waltenbaugh" } ] }
+{  "cid": 372,  "name": "Zena Keglovic",  "age": 22,  "address": {  "number": 7675,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Basketball", "Wine" ],  "children": [  ] }
+{  "cid": 662,  "name": "Domonique Corbi",  "age": 13,  "address": {  "number": 7286,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Tennis", "Cooking", "Computers" ],  "children": [ {  "name": "Katrice Corbi" }, {  "name": "Idalia Corbi" }, {  "name": "Hayley Corbi" } ] }
+{  "cid": 983,  "name": "Leone Aucter",  "age": 48,  "address": {  "number": 4957,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Video Games", "Fishing", "Video Games", "Music" ],  "children": [ {  "name": "Clement Aucter",  "age": 32 }, {  "name": "Socorro Aucter",  "age": 35 } ] }
+{  "cid": 536,  "name": "Wilber Rehrer",  "interests": [ "Movies" ],  "children": [ {  "name": "Zulema Rehrer" }, {  "name": "Lavonda Rehrer" }, {  "name": "Stacey Rehrer",  "age": 59 } ] }
+{  "cid": 938,  "name": "Parthenia Dromgoole",  "age": 36,  "address": {  "number": 527,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Fishing" ],  "children": [  ] }
+{  "cid": 629,  "name": "Mayola Clabo",  "interests": [ "Basketball", "Skiing", "Running" ],  "children": [ {  "name": "Rigoberto Clabo",  "age": 58 } ] }
+{  "cid": 197,  "name": "Garth Giannitti",  "interests": [ "Coffee", "Cigars" ],  "children": [ {  "name": "Patsy Giannitti" }, {  "name": "Ray Giannitti",  "age": 35 }, {  "name": "Kamala Giannitti",  "age": 35 }, {  "name": "Lauran Giannitti",  "age": 25 } ] }
+{  "cid": 230,  "name": "Tobias Vicars",  "age": 66,  "address": {  "number": 638,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Wine", "Walking", "Books", "Walking" ],  "children": [  ] }
+{  "cid": 978,  "name": "Rudy Watsky",  "age": 32,  "address": {  "number": 2754,  "street": "Oak St.",  "city": "Seattle" },  "interests": [ "Cooking" ],  "children": [  ] }
+{  "cid": 478,  "name": "Sophia Whitt",  "age": 26,  "address": {  "number": 2787,  "street": "Park St.",  "city": "Mountain View" },  "interests": [ "Fishing", "Databases" ],  "children": [ {  "name": "Irving Whitt",  "age": 13 }, {  "name": "Jeannette Whitt" } ] }
+{  "cid": 727,  "name": "Valene Resecker",  "interests": [ "Music", "Wine", "Books", "Walking" ],  "children": [  ] }
+{  "cid": 511,  "name": "Sanda Franson",  "interests": [ "Music", "Cooking", "Books", "Cooking" ],  "children": [  ] }
+{  "cid": 557,  "name": "Kaitlyn Hilleman",  "age": 61,  "address": {  "number": 1076,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Corrie Hilleman",  "age": 31 }, {  "name": "Jovan Hilleman" }, {  "name": "Carmine Hilleman" } ] }
+{  "cid": 121,  "name": "Shiela Gaustad",  "interests": [  ],  "children": [ {  "name": "Phebe Gaustad" }, {  "name": "Mavis Gaustad" }, {  "name": "Zula Gaustad",  "age": 37 } ] }
+{  "cid": 316,  "name": "Patrina Whitting",  "age": 74,  "address": {  "number": 4772,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Music", "Video Games", "Bass" ],  "children": [ {  "name": "Rubye Whitting" } ] }
+{  "cid": 698,  "name": "Tawanna Zanin",  "age": 60,  "address": {  "number": 7979,  "street": "View St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Denny Zanin",  "age": 31 }, {  "name": "Danial Zanin",  "age": 43 }, {  "name": "Kenyetta Zanin" }, {  "name": "Aleisha Zanin" } ] }
+{  "cid": 272,  "name": "Frederick Valla",  "age": 15,  "address": {  "number": 6805,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Video Games" ],  "children": [ {  "name": "Carroll Valla" } ] }
+{  "cid": 440,  "name": "Rosie Shappen",  "interests": [ "Cooking", "Music", "Cigars" ],  "children": [ {  "name": "Jung Shappen",  "age": 11 } ] }
+{  "cid": 997,  "name": "Yesenia Gao",  "age": 38,  "address": {  "number": 5990,  "street": "View St.",  "city": "Portland" },  "interests": [ "Computers", "Computers", "Puzzles", "Puzzles" ],  "children": [ {  "name": "Jared Gao",  "age": 11 }, {  "name": "Sang Gao" }, {  "name": "Jeanne Gao",  "age": 13 }, {  "name": "Lavona Gao",  "age": 23 } ] }
+{  "cid": 352,  "name": "Bonny Sischo",  "interests": [ "Bass", "Movies", "Computers" ],  "children": [ {  "name": "Judith Sischo",  "age": 43 }, {  "name": "Adeline Sischo" }, {  "name": "Dayna Sischo" } ] }
+{  "cid": 818,  "name": "Nellie Whetzell",  "interests": [ "Walking" ],  "children": [  ] }
+{  "cid": 874,  "name": "Jamie Credille",  "age": 87,  "address": {  "number": 3351,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Walking", "Movies", "Bass", "Basketball" ],  "children": [ {  "name": "Shirly Credille" }, {  "name": "Digna Credille" }, {  "name": "Sabra Credille" }, {  "name": "Broderick Credille" } ] }
+{  "cid": 532,  "name": "Tania Fraklin",  "age": 38,  "address": {  "number": 2857,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Squash", "Databases" ],  "children": [  ] }
+{  "cid": 134,  "name": "Alica Frontiero",  "interests": [ "Puzzles" ],  "children": [  ] }
+{  "cid": 688,  "name": "Maryellen Leriche",  "interests": [ "Music", "Walking", "Skiing" ],  "children": [ {  "name": "Dorinda Leriche",  "age": 27 } ] }
+{  "cid": 168,  "name": "Carlotta Broderson",  "interests": [ "Skiing", "Video Games", "Squash", "Databases" ],  "children": [ {  "name": "Adolfo Broderson",  "age": 54 }, {  "name": "Vickie Broderson" } ] }
+{  "cid": 402,  "name": "Terrilyn Shinall",  "interests": [ "Computers", "Skiing", "Music" ],  "children": [ {  "name": "Minh Shinall" }, {  "name": "Diedre Shinall",  "age": 22 } ] }
+{  "cid": 984,  "name": "Janett Kitchens",  "age": 66,  "address": {  "number": 7558,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Coffee", "Movies", "Squash" ],  "children": [ {  "name": "Grayce Kitchens",  "age": 14 }, {  "name": "Dwayne Kitchens" }, {  "name": "Wilber Kitchens",  "age": 51 }, {  "name": "Nancey Kitchens" } ] }
+{  "cid": 222,  "name": "Malcom Bloomgren",  "age": 39,  "address": {  "number": 4674,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Databases", "Skiing" ],  "children": [ {  "name": "Rosia Bloomgren" }, {  "name": "Bryant Bloomgren",  "age": 15 }, {  "name": "Donnie Bloomgren" } ] }
+{  "cid": 809,  "name": "Dagny Mangiaracina",  "age": 44,  "address": {  "number": 5993,  "street": "Lake St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Bari Mangiaracina",  "age": 31 }, {  "name": "Tiara Mangiaracina",  "age": 12 }, {  "name": "Milly Mangiaracina" }, {  "name": "Chelsie Mangiaracina" } ] }
+{  "cid": 769,  "name": "Isaias Tenny",  "age": 71,  "address": {  "number": 270,  "street": "Park St.",  "city": "Portland" },  "interests": [ "Wine", "Fishing", "Base Jumping" ],  "children": [ {  "name": "Theo Tenny" }, {  "name": "Shena Tenny" }, {  "name": "Coralee Tenny" }, {  "name": "Orval Tenny",  "age": 39 } ] }
+{  "cid": 159,  "name": "Jeanmarie Franchini",  "interests": [ "Music" ],  "children": [ {  "name": "Nikita Franchini" }, {  "name": "Willetta Franchini" }, {  "name": "Ester Franchini",  "age": 12 } ] }
+{  "cid": 198,  "name": "Thelma Youkers",  "interests": [ "Basketball", "Movies", "Cooking" ],  "children": [ {  "name": "Shamika Youkers",  "age": 28 } ] }
+{  "cid": 856,  "name": "Inocencia Petzold",  "age": 83,  "address": {  "number": 4631,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Basketball", "Squash", "Movies", "Base Jumping" ],  "children": [  ] }
+{  "cid": 394,  "name": "Lizette Roux",  "age": 57,  "address": {  "number": 458,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Bass", "Books" ],  "children": [ {  "name": "Doloris Roux" } ] }
+{  "cid": 560,  "name": "Karin Dicesare",  "interests": [ "Wine", "Puzzles" ],  "children": [  ] }
+{  "cid": 813,  "name": "Leann Domagala",  "age": 47,  "address": {  "number": 4472,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Computers" ],  "children": [ {  "name": "Alvera Domagala",  "age": 36 }, {  "name": "Rosalva Domagala",  "age": 27 }, {  "name": "Eugenia Domagala" }, {  "name": "My Domagala",  "age": 32 } ] }
+{  "cid": 165,  "name": "Melodie Starrick",  "interests": [ "Walking" ],  "children": [ {  "name": "Adria Starrick" }, {  "name": "Tasha Starrick",  "age": 25 } ] }
+{  "cid": 268,  "name": "Fernando Pingel",  "interests": [ "Computers", "Tennis", "Books" ],  "children": [ {  "name": "Latrice Pingel" }, {  "name": "Wade Pingel",  "age": 13 }, {  "name": "Christal Pingel" }, {  "name": "Melania Pingel" } ] }
+{  "cid": 408,  "name": "Ava Zornes",  "interests": [ "Music" ],  "children": [  ] }
+{  "cid": 258,  "name": "Florentina Hense",  "age": 20,  "address": {  "number": 8495,  "street": "View St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Noelle Hense" }, {  "name": "Roxann Hense" } ] }
+{  "cid": 59,  "name": "Rea Villicana",  "interests": [  ],  "children": [  ] }
+{  "cid": 774,  "name": "Nadene Rigel",  "interests": [ "Cigars", "Cigars" ],  "children": [ {  "name": "Rebbeca Rigel",  "age": 33 } ] }
+{  "cid": 606,  "name": "Virgilio Liebelt",  "age": 11,  "address": {  "number": 8348,  "street": "Cedar St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Stanford Liebelt" }, {  "name": "Delaine Liebelt" }, {  "name": "Kevin Liebelt" }, {  "name": "Michaele Liebelt" } ] }
+{  "cid": 848,  "name": "Myrta Kopf",  "interests": [ "Wine", "Basketball", "Base Jumping" ],  "children": [  ] }
+{  "cid": 817,  "name": "Missy Perdue",  "age": 59,  "address": {  "number": 2876,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [ "Basketball", "Cigars", "Computers", "Books" ],  "children": [ {  "name": "Shellie Perdue" }, {  "name": "Marx Perdue" }, {  "name": "Peg Perdue",  "age": 39 }, {  "name": "Dalton Perdue",  "age": 32 } ] }
+{  "cid": 615,  "name": "Kimber Warnberg",  "age": 77,  "address": {  "number": 1404,  "street": "View St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Kristal Warnberg" } ] }
+{  "cid": 623,  "name": "Lorna Krason",  "age": 40,  "address": {  "number": 9398,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Cigars", "Cigars", "Video Games", "Wine" ],  "children": [  ] }
+{  "cid": 90,  "name": "Dorethea Korns",  "interests": [ "Cooking", "Computers" ],  "children": [ {  "name": "Catheryn Korns",  "age": 22 } ] }
+{  "cid": 467,  "name": "Magali Ingerson",  "interests": [ "Books", "Base Jumping" ],  "children": [ {  "name": "Monty Ingerson",  "age": 11 }, {  "name": "Noelia Ingerson",  "age": 47 }, {  "name": "Tennie Ingerson" }, {  "name": "Merrill Ingerson" } ] }
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+{  "cid": 175,  "name": "Loise Obhof",  "interests": [  ],  "children": [ {  "name": "Susann Obhof" }, {  "name": "Signe Obhof",  "age": 38 } ] }
+{  "cid": 665,  "name": "Garnet Desai",  "interests": [ "Databases" ],  "children": [ {  "name": "Aliza Desai" } ] }
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+{  "cid": 66,  "name": "Lenny Latson",  "interests": [ "Music", "Video Games" ],  "children": [  ] }
+{  "cid": 745,  "name": "Tabatha Hagwell",  "interests": [  ],  "children": [ {  "name": "Gaynell Hagwell" } ] }
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+{  "cid": 371,  "name": "Agatha Tensley",  "age": 13,  "address": {  "number": 1810,  "street": "Hill St.",  "city": "San Jose" },  "interests": [ "Bass", "Running", "Movies" ],  "children": [ {  "name": "Launa Tensley" } ] }
+{  "cid": 474,  "name": "Claudie Hunstad",  "age": 46,  "address": {  "number": 3347,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Music", "Base Jumping", "Computers", "Cooking" ],  "children": [ {  "name": "Elanor Hunstad",  "age": 35 } ] }
+{  "cid": 761,  "name": "Adele Henrikson",  "interests": [ "Cooking", "Bass" ],  "children": [ {  "name": "Paulina Henrikson" }, {  "name": "David Henrikson" }, {  "name": "Jose Henrikson" }, {  "name": "Meg Henrikson" } ] }
+{  "cid": 442,  "name": "Val Disorda",  "interests": [ "Bass" ],  "children": [ {  "name": "Simone Disorda",  "age": 53 }, {  "name": "Jacalyn Disorda",  "age": 41 }, {  "name": "Ron Disorda" }, {  "name": "Clifton Disorda" } ] }
+{  "cid": 892,  "name": "Madge Hendson",  "age": 79,  "address": {  "number": 8832,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Databases", "Fishing", "Skiing" ],  "children": [ {  "name": "Elia Hendson",  "age": 48 }, {  "name": "Lashawn Hendson",  "age": 27 } ] }
+{  "cid": 244,  "name": "Rene Shenk",  "interests": [ "Puzzles", "Puzzles", "Skiing" ],  "children": [ {  "name": "Victor Shenk",  "age": 28 }, {  "name": "Doris Shenk" }, {  "name": "Max Shenk",  "age": 51 } ] }
+{  "cid": 375,  "name": "Chia Sagaser",  "age": 15,  "address": {  "number": 6025,  "street": "Park St.",  "city": "Mountain View" },  "interests": [ "Skiing" ],  "children": [ {  "name": "Garnet Sagaser" }, {  "name": "Mario Sagaser" }, {  "name": "Sun Sagaser" } ] }
+{  "cid": 344,  "name": "Aleshia Hongeva",  "age": 70,  "address": {  "number": 4092,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Books", "Video Games", "Puzzles", "Music" ],  "children": [  ] }
+{  "cid": 127,  "name": "Christian Anthes",  "age": 32,  "address": {  "number": 6258,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Running", "Bass" ],  "children": [ {  "name": "Sophia Anthes" } ] }
+{  "cid": 182,  "name": "Christiana Westlie",  "interests": [ "Skiing", "Bass" ],  "children": [ {  "name": "Ilda Westlie",  "age": 18 } ] }
+{  "cid": 787,  "name": "Sara Yerly",  "age": 12,  "address": {  "number": 872,  "street": "7th St.",  "city": "Seattle" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Nettie Yerly" }, {  "name": "Regine Yerly" }, {  "name": "Hyo Yerly" } ] }
+{  "cid": 405,  "name": "Shawnda Landborg",  "age": 73,  "address": {  "number": 2396,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Cherrie Landborg",  "age": 10 } ] }
+{  "cid": 530,  "name": "Olevia Sturk",  "age": 72,  "address": {  "number": 1939,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [ "Computers" ],  "children": [ {  "name": "Cindy Sturk",  "age": 18 }, {  "name": "Alishia Sturk" }, {  "name": "Sonja Sturk",  "age": 51 } ] }
+{  "cid": 152,  "name": "Karyn Cockburn",  "interests": [ "Puzzles", "Cigars", "Bass", "Computers" ],  "children": [ {  "name": "Zenobia Cockburn",  "age": 44 }, {  "name": "Shellie Cockburn" }, {  "name": "Kermit Cockburn" } ] }
+{  "cid": 164,  "name": "Lucrecia Dahlhauser",  "interests": [ "Wine" ],  "children": [  ] }
+{  "cid": 322,  "name": "Jaclyn Ettl",  "age": 83,  "address": {  "number": 4500,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Databases", "Skiing" ],  "children": [ {  "name": "Noah Ettl",  "age": 30 }, {  "name": "Kesha Ettl" } ] }
+{  "cid": 556,  "name": "Dalene Mateen",  "age": 76,  "address": {  "number": 2854,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Video Games", "Walking", "Databases", "Cooking" ],  "children": [ {  "name": "Jazmin Mateen",  "age": 29 } ] }
+{  "cid": 105,  "name": "Camilla Lohman",  "interests": [  ],  "children": [ {  "name": "Melania Lohman",  "age": 50 }, {  "name": "Mike Lohman",  "age": 53 }, {  "name": "Cassaundra Lohman",  "age": 32 }, {  "name": "Jay Lohman" } ] }
+{  "cid": 26,  "name": "Jone Okuna",  "age": 78,  "address": {  "number": 6006,  "street": "7th St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Franchesca Okuna" }, {  "name": "Fred Okuna",  "age": 17 }, {  "name": "Marcellus Okuna" } ] }
+{  "cid": 823,  "name": "Deloras Scorzelli",  "age": 54,  "address": {  "number": 6140,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Bass", "Fishing", "Databases", "Fishing" ],  "children": [ {  "name": "Catharine Scorzelli",  "age": 12 }, {  "name": "Margarite Scorzelli",  "age": 19 }, {  "name": "Neomi Scorzelli",  "age": 38 }, {  "name": "Ossie Scorzelli" } ] }
+{  "cid": 12,  "name": "Laurinda Raimann",  "interests": [ "Basketball", "Coffee" ],  "children": [ {  "name": "Lulu Raimann" }, {  "name": "Refugia Raimann",  "age": 19 }, {  "name": "Jimmie Raimann",  "age": 10 }, {  "name": "Cindy Raimann" } ] }
+{  "cid": 832,  "name": "Alina Hosley",  "interests": [ "Databases", "Databases", "Music" ],  "children": [ {  "name": "Sebrina Hosley" }, {  "name": "Dyan Hosley" } ] }
+{  "cid": 104,  "name": "Neda Dilts",  "interests": [ "Basketball" ],  "children": [ {  "name": "Nona Dilts",  "age": 28 }, {  "name": "Wm Dilts" }, {  "name": "Svetlana Dilts",  "age": 46 }, {  "name": "Iva Dilts",  "age": 59 } ] }
+{  "cid": 836,  "name": "Elden Shumski",  "interests": [  ],  "children": [ {  "name": "Weldon Shumski" }, {  "name": "Anneliese Shumski" } ] }
+{  "cid": 265,  "name": "Donte Stempien",  "age": 25,  "address": {  "number": 3882,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [ "Wine", "Books" ],  "children": [  ] }
+{  "cid": 578,  "name": "Dolly Delphia",  "interests": [ "Wine" ],  "children": [ {  "name": "Sharron Delphia" }, {  "name": "Shemeka Delphia" }, {  "name": "Rachael Delphia" } ] }
+{  "cid": 954,  "name": "Yolonda Pu",  "interests": [ "Video Games", "Music", "Cooking", "Skiing" ],  "children": [ {  "name": "Josephina Pu",  "age": 35 } ] }
+{  "cid": 722,  "name": "Noel Goncalves",  "interests": [ "Books", "Bass", "Books", "Books" ],  "children": [ {  "name": "Latrice Goncalves" }, {  "name": "Evelia Goncalves",  "age": 36 }, {  "name": "Etta Goncalves",  "age": 11 }, {  "name": "Collin Goncalves" } ] }
+{  "cid": 224,  "name": "Rene Rowey",  "interests": [ "Base Jumping", "Base Jumping", "Walking", "Computers" ],  "children": [ {  "name": "Necole Rowey",  "age": 26 }, {  "name": "Sharyl Rowey",  "age": 20 }, {  "name": "Yvone Rowey",  "age": 36 } ] }
+{  "cid": 739,  "name": "Libbie Thigpin",  "interests": [ "Databases" ],  "children": [  ] }
+{  "cid": 641,  "name": "Barney Perz",  "interests": [ "Running", "Running", "Databases", "Running" ],  "children": [ {  "name": "Cristie Perz" }, {  "name": "Troy Perz",  "age": 38 } ] }
+{  "cid": 212,  "name": "Christi Vichi",  "interests": [ "Squash" ],  "children": [  ] }
+{  "cid": 337,  "name": "Kay Durney",  "age": 52,  "address": {  "number": 4203,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Walking" ],  "children": [ {  "name": "Velia Durney",  "age": 38 }, {  "name": "Erin Durney" } ] }
+{  "cid": 979,  "name": "Yoko Bailony",  "interests": [  ],  "children": [ {  "name": "Vivienne Bailony" }, {  "name": "Lori Bailony",  "age": 47 } ] }
+{  "cid": 312,  "name": "Epifania Chorney",  "age": 62,  "address": {  "number": 9749,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Wine", "Puzzles", "Tennis" ],  "children": [ {  "name": "Lizeth Chorney",  "age": 22 } ] }
+{  "cid": 603,  "name": "Barry Corkum",  "interests": [ "Running", "Running" ],  "children": [ {  "name": "Charlesetta Corkum" }, {  "name": "Helaine Corkum" }, {  "name": "Erinn Corkum",  "age": 28 }, {  "name": "Alesia Corkum",  "age": 36 } ] }
+{  "cid": 554,  "name": "Darci Yafai",  "age": 60,  "address": {  "number": 4694,  "street": "Park St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Lecia Yafai",  "age": 47 } ] }
+{  "cid": 678,  "name": "Lekisha Barnell",  "interests": [ "Movies", "Skiing", "Running" ],  "children": [ {  "name": "August Barnell" }, {  "name": "Tiffany Barnell",  "age": 55 }, {  "name": "Meghan Barnell" } ] }
+{  "cid": 582,  "name": "Suzie Ocallahan",  "interests": [ "Basketball" ],  "children": [ {  "name": "Tamra Ocallahan" } ] }
+{  "cid": 193,  "name": "Melisa Maccarter",  "age": 50,  "address": {  "number": 1494,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Basketball" ],  "children": [ {  "name": "Yetta Maccarter" }, {  "name": "Geralyn Maccarter" } ] }
+{  "cid": 430,  "name": "Cari Woll",  "age": 45,  "address": {  "number": 8226,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Cooking", "Walking", "Cooking" ],  "children": [ {  "name": "Tomasa Woll",  "age": 32 }, {  "name": "Annika Woll",  "age": 21 } ] }
+{  "cid": 118,  "name": "Ellis Skillom",  "age": 78,  "address": {  "number": 9337,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Running", "Cigars" ],  "children": [ {  "name": "Emory Skillom" } ] }
+{  "cid": 522,  "name": "Daryl Kissack",  "age": 86,  "address": {  "number": 7825,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Squash", "Base Jumping", "Tennis" ],  "children": [ {  "name": "Darrel Kissack",  "age": 21 } ] }
+{  "cid": 151,  "name": "Charlyn Soyars",  "age": 21,  "address": {  "number": 2796,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [  ] }
+{  "cid": 510,  "name": "Candace Morello",  "interests": [ "Wine", "Base Jumping", "Running" ],  "children": [ {  "name": "Sandy Morello",  "age": 57 }, {  "name": "Delois Morello",  "age": 15 } ] }
+{  "cid": 655,  "name": "Shaun Brandenburg",  "interests": [ "Skiing", "Computers", "Base Jumping" ],  "children": [ {  "name": "Ned Brandenburg" }, {  "name": "Takako Brandenburg",  "age": 41 }, {  "name": "Astrid Brandenburg" }, {  "name": "Patience Brandenburg" } ] }
+{  "cid": 308,  "name": "Solomon Schwenke",  "interests": [ "Puzzles" ],  "children": [ {  "name": "Gertrude Schwenke" }, {  "name": "Marcell Schwenke",  "age": 41 }, {  "name": "Shalon Schwenke" } ] }
+{  "cid": 502,  "name": "Lawana Mulik",  "age": 82,  "address": {  "number": 3071,  "street": "Park St.",  "city": "Portland" },  "interests": [ "Cigars", "Cigars" ],  "children": [ {  "name": "Carrie Mulik" }, {  "name": "Sharlene Mulik",  "age": 33 }, {  "name": "Leone Mulik",  "age": 46 } ] }
+{  "cid": 740,  "name": "Thomasine Collado",  "interests": [ "Music" ],  "children": [ {  "name": "Tabetha Collado" }, {  "name": "Alline Collado" }, {  "name": "Delisa Collado" }, {  "name": "Jack Collado",  "age": 56 } ] }
+{  "cid": 386,  "name": "Mao Gradowski",  "age": 36,  "address": {  "number": 5116,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Computers", "Fishing" ],  "children": [ {  "name": "Jeneva Gradowski" }, {  "name": "Thu Gradowski",  "age": 22 }, {  "name": "Daphine Gradowski" }, {  "name": "Providencia Gradowski" } ] }
+{  "cid": 783,  "name": "Johnnie Kesby",  "age": 56,  "address": {  "number": 9798,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Puzzles", "Tennis" ],  "children": [  ] }
+{  "cid": 694,  "name": "Ariel Soltani",  "interests": [ "Databases", "Music", "Puzzles" ],  "children": [ {  "name": "Aldo Soltani" }, {  "name": "Anglea Soltani" } ] }
+{  "cid": 128,  "name": "Edwin Harwick",  "interests": [ "Fishing", "Squash", "Basketball" ],  "children": [ {  "name": "Tomeka Harwick",  "age": 34 }, {  "name": "Caroline Harwick",  "age": 57 }, {  "name": "Peter Harwick" }, {  "name": "Adele Harwick" } ] }
+{  "cid": 348,  "name": "Matthew Pantaleo",  "age": 80,  "address": {  "number": 9782,  "street": "Washington St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Faviola Pantaleo" }, {  "name": "Yang Pantaleo" }, {  "name": "Christopher Pantaleo" }, {  "name": "Jacqui Pantaleo",  "age": 58 } ] }
+{  "cid": 22,  "name": "Sarita Burrer",  "interests": [ "Cigars", "Computers" ],  "children": [  ] }
+{  "cid": 44,  "name": "Agustin Clubs",  "interests": [  ],  "children": [ {  "name": "Maxwell Clubs",  "age": 31 }, {  "name": "Rayna Clubs" }, {  "name": "Darwin Clubs" } ] }
+{  "cid": 327,  "name": "Minnie Scali",  "interests": [ "Cooking", "Squash", "Skiing" ],  "children": [ {  "name": "Jalisa Scali" }, {  "name": "Preston Scali" }, {  "name": "Stephani Scali",  "age": 47 }, {  "name": "Candra Scali" } ] }
+{  "cid": 668,  "name": "Dorene Spigelman",  "interests": [  ],  "children": [ {  "name": "Chiquita Spigelman",  "age": 29 }, {  "name": "Anisha Spigelman",  "age": 34 }, {  "name": "Micah Spigelman",  "age": 28 } ] }
+{  "cid": 53,  "name": "Ricardo Greiwe",  "age": 24,  "address": {  "number": 8983,  "street": "View St.",  "city": "Portland" },  "interests": [  ],  "children": [  ] }
+{  "cid": 157,  "name": "Mckenzie Tahir",  "age": 78,  "address": {  "number": 6752,  "street": "Hill St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Margarita Tahir",  "age": 18 }, {  "name": "Mia Tahir",  "age": 47 }, {  "name": "Gaylord Tahir" } ] }
+{  "cid": 504,  "name": "Marla Kolenda",  "age": 57,  "address": {  "number": 464,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Coffee" ],  "children": [ {  "name": "Iliana Kolenda",  "age": 34 }, {  "name": "Ammie Kolenda",  "age": 20 }, {  "name": "Candi Kolenda",  "age": 23 }, {  "name": "Lyla Kolenda",  "age": 23 } ] }
+{  "cid": 601,  "name": "Zackary Willier",  "interests": [ "Cooking", "Databases", "Databases" ],  "children": [  ] }
+{  "cid": 837,  "name": "Denice Wolken",  "age": 28,  "address": {  "number": 5010,  "street": "7th St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Kattie Wolken" } ] }
+{  "cid": 144,  "name": "Celesta Sosebee",  "age": 19,  "address": {  "number": 2683,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Databases", "Databases" ],  "children": [ {  "name": "Jesse Sosebee" }, {  "name": "Oralee Sosebee" }, {  "name": "Sunday Sosebee" } ] }
+{  "cid": 651,  "name": "Delana Henk",  "age": 69,  "address": {  "number": 5497,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Coffee", "Video Games", "Databases" ],  "children": [ {  "name": "Loan Henk" }, {  "name": "Teresa Henk",  "age": 20 }, {  "name": "Randell Henk" }, {  "name": "Micah Henk" } ] }
+{  "cid": 897,  "name": "Gerald Roehrman",  "interests": [ "Bass", "Wine" ],  "children": [ {  "name": "Virgie Roehrman",  "age": 28 }, {  "name": "Akiko Roehrman",  "age": 59 }, {  "name": "Robbie Roehrman",  "age": 10 }, {  "name": "Flavia Roehrman" } ] }
+{  "cid": 671,  "name": "Harley Emami",  "interests": [ "Basketball" ],  "children": [ {  "name": "Valentine Emami" }, {  "name": "Pearlene Emami" } ] }
+{  "cid": 406,  "name": "Addie Mandez",  "interests": [ "Tennis", "Cigars", "Books" ],  "children": [ {  "name": "Rosendo Mandez",  "age": 34 } ] }
+{  "cid": 955,  "name": "Liliana Stenkamp",  "interests": [ "Music" ],  "children": [  ] }
+{  "cid": 519,  "name": "Julianna Goodsell",  "age": 59,  "address": {  "number": 5594,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Video Games", "Fishing" ],  "children": [  ] }
+{  "cid": 714,  "name": "Felipe Gobel",  "interests": [ "Coffee", "Cigars", "Cooking", "Squash" ],  "children": [ {  "name": "Hortense Gobel",  "age": 15 }, {  "name": "Thomas Gobel",  "age": 25 }, {  "name": "Deena Gobel",  "age": 53 }, {  "name": "Shelby Gobel" } ] }
+{  "cid": 717,  "name": "Paulette Moccasin",  "age": 87,  "address": {  "number": 1426,  "street": "View St.",  "city": "Portland" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Savannah Moccasin" }, {  "name": "Mariela Moccasin",  "age": 34 }, {  "name": "Isadora Moccasin" }, {  "name": "Vivien Moccasin",  "age": 31 } ] }
+{  "cid": 982,  "name": "Jude Brandsrud",  "age": 41,  "address": {  "number": 7133,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Bass", "Skiing" ],  "children": [ {  "name": "Scottie Brandsrud" }, {  "name": "Gennie Brandsrud",  "age": 10 }, {  "name": "Agnes Brandsrud" }, {  "name": "Clarinda Brandsrud",  "age": 17 } ] }
+{  "cid": 254,  "name": "Jeanice Longanecker",  "age": 74,  "address": {  "number": 2613,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Books", "Base Jumping" ],  "children": [  ] }
+{  "cid": 890,  "name": "Janise Maccarthy",  "age": 66,  "address": {  "number": 7337,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Wine", "Computers" ],  "children": [  ] }
+{  "cid": 996,  "name": "Elouise Wider",  "interests": [ "Coffee", "Computers", "Base Jumping" ],  "children": [  ] }
+{  "cid": 245,  "name": "Lupe Abshear",  "age": 55,  "address": {  "number": 7269,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Song Abshear" }, {  "name": "Honey Abshear",  "age": 31 } ] }
+{  "cid": 645,  "name": "Shawnda Dollinger",  "age": 36,  "address": {  "number": 5980,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Vicente Dollinger" }, {  "name": "Kerrie Dollinger",  "age": 10 }, {  "name": "Sima Dollinger",  "age": 14 } ] }
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+{  "cid": 123,  "name": "Marian Courrege",  "age": 30,  "address": {  "number": 7321,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Coffee" ],  "children": [  ] }
+{  "cid": 732,  "name": "Dania Fabio",  "interests": [ "Skiing" ],  "children": [ {  "name": "Virgie Fabio" }, {  "name": "Nereida Fabio",  "age": 37 } ] }
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+{  "cid": 731,  "name": "Yajaira Orto",  "interests": [ "Music", "Databases" ],  "children": [ {  "name": "Eliz Orto",  "age": 17 }, {  "name": "Gisela Orto" } ] }
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+{  "cid": 1,  "name": "Trudie Minick",  "age": 75,  "address": {  "number": 6740,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Fishing", "Squash" ],  "children": [ {  "name": "Arie Minick",  "age": 56 }, {  "name": "Alline Minick",  "age": 57 }, {  "name": "Petronila Minick",  "age": 56 } ] }
+{  "cid": 289,  "name": "Clarence Milette",  "age": 16,  "address": {  "number": 3778,  "street": "Oak St.",  "city": "Seattle" },  "interests": [ "Books", "Base Jumping", "Music" ],  "children": [  ] }
+{  "cid": 846,  "name": "Kieth Norlund",  "age": 15,  "address": {  "number": 4039,  "street": "Park St.",  "city": "Mountain View" },  "interests": [ "Wine", "Walking", "Puzzles" ],  "children": [ {  "name": "Shawn Norlund" } ] }
+{  "cid": 437,  "name": "Marlene Macintyre",  "age": 86,  "address": {  "number": 3708,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Wine", "Walking", "Music", "Coffee" ],  "children": [ {  "name": "Todd Macintyre" }, {  "name": "Mechelle Macintyre",  "age": 50 } ] }
+{  "cid": 881,  "name": "Leora Chesnutt",  "age": 49,  "address": {  "number": 6487,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Movies" ],  "children": [ {  "name": "Myrtle Chesnutt" }, {  "name": "Serina Chesnutt",  "age": 11 }, {  "name": "Jana Chesnutt",  "age": 10 } ] }
+{  "cid": 219,  "name": "Joelle Valazquez",  "age": 73,  "address": {  "number": 9775,  "street": "Park St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Gene Valazquez" }, {  "name": "Ilona Valazquez" } ] }
+{  "cid": 191,  "name": "Lula Pangburn",  "age": 42,  "address": {  "number": 1309,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Skiing", "Cooking", "Walking", "Video Games" ],  "children": [ {  "name": "Love Pangburn",  "age": 11 }, {  "name": "Bryant Pangburn",  "age": 13 }, {  "name": "Kenda Pangburn",  "age": 14 } ] }
+{  "cid": 184,  "name": "Mirtha Ricciardi",  "interests": [ "Music" ],  "children": [ {  "name": "Elsa Ricciardi",  "age": 30 }, {  "name": "Vicente Ricciardi" }, {  "name": "Sau Ricciardi",  "age": 28 } ] }
+{  "cid": 539,  "name": "Nicky Graceffo",  "interests": [ "Video Games" ],  "children": [  ] }
+{  "cid": 49,  "name": "Asa Schwing",  "age": 70,  "address": {  "number": 2261,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Tennis" ],  "children": [ {  "name": "Joy Schwing",  "age": 15 } ] }
+{  "cid": 92,  "name": "Kenny Laychock",  "age": 15,  "address": {  "number": 4790,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Video Games", "Basketball" ],  "children": [  ] }
+{  "cid": 19,  "name": "Nolan Yaish",  "age": 26,  "address": {  "number": 571,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Fishing", "Running", "Tennis", "Running" ],  "children": [ {  "name": "Jerold Yaish" }, {  "name": "Leatrice Yaish" }, {  "name": "Cletus Yaish",  "age": 10 } ] }
+{  "cid": 791,  "name": "Jame Apresa",  "age": 66,  "address": {  "number": 8417,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Running", "Puzzles", "Base Jumping" ],  "children": [ {  "name": "Awilda Apresa" }, {  "name": "Nelle Apresa",  "age": 40 }, {  "name": "Terrell Apresa" }, {  "name": "Malia Apresa",  "age": 43 } ] }
+{  "cid": 95,  "name": "Gavin Locey",  "age": 86,  "address": {  "number": 8162,  "street": "Lake St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Terrell Locey" }, {  "name": "Kazuko Locey",  "age": 36 }, {  "name": "Risa Locey" }, {  "name": "Dorethea Locey",  "age": 13 } ] }
+{  "cid": 790,  "name": "Dustin Brumble",  "interests": [ "Computers", "Databases", "Tennis" ],  "children": [ {  "name": "Oda Brumble" }, {  "name": "Jennefer Brumble",  "age": 26 }, {  "name": "Ricardo Brumble",  "age": 37 }, {  "name": "Graciela Brumble",  "age": 10 } ] }
+{  "cid": 824,  "name": "Vonda Czaplewski",  "age": 72,  "address": {  "number": 4597,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Skiing" ],  "children": [ {  "name": "Gaynelle Czaplewski" }, {  "name": "India Czaplewski" } ] }
+{  "cid": 281,  "name": "Ivey Riveria",  "interests": [ "Cooking", "Puzzles", "Fishing", "Wine" ],  "children": [ {  "name": "Mohamed Riveria" }, {  "name": "Dia Riveria",  "age": 17 }, {  "name": "Hope Riveria" } ] }
+{  "cid": 624,  "name": "Bong Lyall",  "interests": [ "Databases", "Music", "Video Games" ],  "children": [  ] }
+{  "cid": 754,  "name": "Luetta Joern",  "age": 25,  "address": {  "number": 5554,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Hildegarde Joern" }, {  "name": "Lorenza Joern",  "age": 13 } ] }
+{  "cid": 466,  "name": "Paulene Bagen",  "age": 87,  "address": {  "number": 4093,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Music" ],  "children": [ {  "name": "Antione Bagen" }, {  "name": "Samatha Bagen" } ] }
+{  "cid": 194,  "name": "Leslee Apking",  "age": 41,  "address": {  "number": 8107,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Irena Apking" }, {  "name": "Arla Apking" } ] }
+{  "cid": 620,  "name": "Arielle Mackellar",  "interests": [ "Cooking", "Bass" ],  "children": [ {  "name": "Evelin Mackellar",  "age": 17 }, {  "name": "Theresa Mackellar",  "age": 53 }, {  "name": "Ronnie Mackellar" }, {  "name": "Elwanda Mackellar",  "age": 54 } ] }
+{  "cid": 351,  "name": "Samual Alsandor",  "age": 68,  "address": {  "number": 33,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Bass", "Cigars", "Cooking", "Coffee" ],  "children": [  ] }
+{  "cid": 517,  "name": "Alfonso Bruderer",  "interests": [ "Bass" ],  "children": [  ] }
+{  "cid": 913,  "name": "Evelynn Fague",  "age": 42,  "address": {  "number": 5729,  "street": "7th St.",  "city": "Seattle" },  "interests": [ "Books", "Databases", "Cooking" ],  "children": [  ] }
+{  "cid": 541,  "name": "Sammy Adamitis",  "age": 71,  "address": {  "number": 5593,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Books", "Tennis", "Cooking" ],  "children": [  ] }
+{  "cid": 298,  "name": "Brittny Christin",  "interests": [ "Databases", "Video Games" ],  "children": [ {  "name": "Hilario Christin" }, {  "name": "Clarine Christin" } ] }
+{  "cid": 489,  "name": "Brigid Delosier",  "age": 31,  "address": {  "number": 6082,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Tennis", "Cigars", "Music" ],  "children": [ {  "name": "Allegra Delosier" }, {  "name": "Yong Delosier",  "age": 10 }, {  "name": "Steffanie Delosier",  "age": 13 } ] }
+{  "cid": 551,  "name": "Dorian Riggins",  "age": 85,  "address": {  "number": 9563,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Music", "Cigars", "Cigars", "Cooking" ],  "children": [ {  "name": "Lorine Riggins",  "age": 51 }, {  "name": "Sung Riggins" }, {  "name": "Fletcher Riggins",  "age": 60 }, {  "name": "Deon Riggins" } ] }
+{  "cid": 878,  "name": "Migdalia Bisker",  "age": 50,  "address": {  "number": 6699,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [ "Computers", "Basketball" ],  "children": [ {  "name": "Moira Bisker" }, {  "name": "Tanisha Bisker" } ] }
+{  "cid": 412,  "name": "Devon Szalai",  "age": 26,  "address": {  "number": 2384,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Bass", "Books", "Books" ],  "children": [ {  "name": "Yolonda Szalai" }, {  "name": "Denita Szalai" }, {  "name": "Priscila Szalai",  "age": 10 }, {  "name": "Cassondra Szalai",  "age": 12 } ] }
+{  "cid": 608,  "name": "Bruce Stanley",  "age": 39,  "address": {  "number": 4532,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Tennis" ],  "children": [  ] }
+{  "cid": 743,  "name": "Nona Debroux",  "interests": [ "Bass" ],  "children": [  ] }
+{  "cid": 318,  "name": "Shaunna Royal",  "age": 86,  "address": {  "number": 8681,  "street": "7th St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Shantell Royal",  "age": 37 }, {  "name": "Shalon Royal",  "age": 50 }, {  "name": "Chung Royal",  "age": 26 } ] }
+{  "cid": 614,  "name": "Wallace Chaidy",  "interests": [ "Bass", "Movies", "Music" ],  "children": [ {  "name": "Refugio Chaidy" }, {  "name": "Hae Chaidy",  "age": 55 }, {  "name": "Julian Chaidy" }, {  "name": "Tabatha Chaidy" } ] }
+{  "cid": 390,  "name": "Shera Cung",  "age": 69,  "address": {  "number": 5850,  "street": "Hill St.",  "city": "San Jose" },  "interests": [ "Fishing", "Computers", "Cigars", "Base Jumping" ],  "children": [ {  "name": "Lenore Cung",  "age": 20 } ] }
+{  "cid": 518,  "name": "Cora Ingargiola",  "interests": [ "Skiing", "Squash", "Movies" ],  "children": [ {  "name": "Katlyn Ingargiola" }, {  "name": "Mike Ingargiola" }, {  "name": "Lawrence Ingargiola" }, {  "name": "Isabelle Ingargiola" } ] }
+{  "cid": 93,  "name": "Garth Raigosa",  "interests": [ "Basketball" ],  "children": [  ] }
+{  "cid": 41,  "name": "Kevin Giottonini",  "interests": [ "Skiing", "Bass" ],  "children": [ {  "name": "Victor Giottonini",  "age": 37 }, {  "name": "Alverta Giottonini" } ] }
+{  "cid": 7,  "name": "Karie Kaehler",  "age": 59,  "address": {  "number": 9875,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Computers", "Skiing", "Basketball", "Movies" ],  "children": [ {  "name": "Spring Kaehler",  "age": 17 } ] }
+{  "cid": 925,  "name": "Quintin Kizzie",  "interests": [ "Computers", "Tennis", "Bass", "Movies" ],  "children": [ {  "name": "Julius Kizzie",  "age": 11 }, {  "name": "Melissia Kizzie" }, {  "name": "Olga Kizzie",  "age": 42 } ] }
+{  "cid": 819,  "name": "Twanna Finnley",  "interests": [ "Squash", "Cigars" ],  "children": [ {  "name": "Reba Finnley" }, {  "name": "Moises Finnley" } ] }
+{  "cid": 162,  "name": "Chang Reek",  "age": 85,  "address": {  "number": 5943,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Tennis", "Movies" ],  "children": [ {  "name": "Camelia Reek" }, {  "name": "Eleonora Reek",  "age": 36 }, {  "name": "Shalonda Reek",  "age": 39 }, {  "name": "Stefan Reek",  "age": 64 } ] }
+{  "cid": 719,  "name": "Antoinette Boursiquot",  "age": 47,  "address": {  "number": 3652,  "street": "Cedar St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Dennis Boursiquot" }, {  "name": "Katelyn Boursiquot" }, {  "name": "Gabrielle Boursiquot" }, {  "name": "Deidre Boursiquot" } ] }
+{  "cid": 205,  "name": "Moises Plake",  "interests": [ "Puzzles", "Computers" ],  "children": [  ] }
+{  "cid": 319,  "name": "Ashlie Rott",  "age": 42,  "address": {  "number": 366,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Computers", "Cooking", "Databases" ],  "children": [  ] }
+{  "cid": 52,  "name": "Janna Tish",  "age": 12,  "address": {  "number": 2598,  "street": "Washington St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Mackenzie Tish" }, {  "name": "Ettie Tish" }, {  "name": "Hortencia Tish" }, {  "name": "Paul Tish" } ] }
+{  "cid": 903,  "name": "Elise Morenz",  "age": 17,  "address": {  "number": 8968,  "street": "View St.",  "city": "Mountain View" },  "interests": [  ],  "children": [  ] }
+{  "cid": 477,  "name": "Onie Kasica",  "age": 72,  "address": {  "number": 7963,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Skiing", "Bass", "Movies", "Skiing" ],  "children": [ {  "name": "Hallie Kasica",  "age": 44 } ] }
+{  "cid": 30,  "name": "Deedee Centner",  "interests": [ "Skiing", "Wine", "Databases", "Movies" ],  "children": [ {  "name": "Lorilee Centner",  "age": 30 }, {  "name": "Thad Centner" } ] }
+{  "cid": 434,  "name": "Tamesha Soho",  "age": 33,  "address": {  "number": 4534,  "street": "Park St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Cody Soho" }, {  "name": "Glennie Soho",  "age": 22 } ] }
+{  "cid": 158,  "name": "Rosalva Harvath",  "age": 84,  "address": {  "number": 5569,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Puzzles", "Wine", "Skiing", "Coffee" ],  "children": [ {  "name": "Taneka Harvath" }, {  "name": "Ina Harvath",  "age": 54 }, {  "name": "Joanne Harvath",  "age": 51 } ] }
+{  "cid": 246,  "name": "Kenda Heikkinen",  "age": 63,  "address": {  "number": 8924,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Databases" ],  "children": [  ] }
+{  "cid": 855,  "name": "Rosette Reen",  "age": 57,  "address": {  "number": 2767,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Basketball" ],  "children": [  ] }
+{  "cid": 484,  "name": "Bennie Dragaj",  "interests": [ "Fishing", "Databases", "Wine" ],  "children": [ {  "name": "Viva Dragaj",  "age": 13 } ] }
+{  "cid": 292,  "name": "Mariana Cosselman",  "interests": [ "Squash" ],  "children": [ {  "name": "Madge Cosselman",  "age": 43 } ] }
+{  "cid": 763,  "name": "Candis Deya",  "interests": [ "Computers" ],  "children": [ {  "name": "Lise Deya" }, {  "name": "Jeni Deya",  "age": 52 }, {  "name": "Domonique Deya",  "age": 24 }, {  "name": "Rubie Deya" } ] }
+{  "cid": 163,  "name": "Marcelene Sparano",  "age": 36,  "address": {  "number": 5722,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Basketball", "Databases" ],  "children": [ {  "name": "Luz Sparano" }, {  "name": "Cassandra Sparano",  "age": 21 }, {  "name": "Martina Sparano",  "age": 21 }, {  "name": "Elisabeth Sparano" } ] }
+{  "cid": 260,  "name": "Hedwig Caminero",  "age": 81,  "address": {  "number": 4305,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Video Games", "Databases" ],  "children": [ {  "name": "Hal Caminero" }, {  "name": "Cierra Caminero",  "age": 32 } ] }
+{  "cid": 650,  "name": "Darrin Orengo",  "interests": [  ],  "children": [ {  "name": "Linwood Orengo",  "age": 39 } ] }
+{  "cid": 762,  "name": "Towanda Yamat",  "interests": [ "Coffee", "Books", "Squash", "Bass" ],  "children": [ {  "name": "Michiko Yamat",  "age": 10 }, {  "name": "Ladonna Yamat" }, {  "name": "Brenton Yamat" } ] }
+{  "cid": 921,  "name": "Mario Nolden",  "age": 17,  "address": {  "number": 3977,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Gertrude Nolden" }, {  "name": "Ray Nolden" }, {  "name": "Inocencia Nolden" } ] }
+{  "cid": 672,  "name": "Pamelia Repka",  "age": 30,  "address": {  "number": 8837,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Coffee", "Base Jumping" ],  "children": [ {  "name": "Klara Repka",  "age": 19 }, {  "name": "Bennett Repka" }, {  "name": "Randy Repka",  "age": 13 }, {  "name": "Ervin Repka" } ] }
+{  "cid": 973,  "name": "Blanche Scivally",  "interests": [ "Movies", "Running", "Video Games", "Books" ],  "children": [ {  "name": "Josefina Scivally",  "age": 43 }, {  "name": "Joey Scivally",  "age": 34 } ] }
+{  "cid": 345,  "name": "Derick Rippel",  "age": 79,  "address": {  "number": 6843,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Running", "Basketball", "Computers", "Basketball" ],  "children": [  ] }
+{  "cid": 933,  "name": "Eartha Hershberger",  "age": 81,  "address": {  "number": 7013,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Waneta Hershberger" }, {  "name": "Katherine Hershberger",  "age": 67 }, {  "name": "Johnnie Hershberger",  "age": 25 }, {  "name": "Jovan Hershberger",  "age": 30 } ] }
+{  "cid": 109,  "name": "Rosette Simco",  "age": 79,  "address": {  "number": 5927,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Cooking", "Puzzles", "Basketball", "Skiing" ],  "children": [ {  "name": "Claudia Simco",  "age": 57 }, {  "name": "Altagracia Simco" } ] }
+{  "cid": 76,  "name": "Opal Blewett",  "interests": [ "Running", "Coffee", "Fishing" ],  "children": [ {  "name": "Violette Blewett" } ] }
+{  "cid": 250,  "name": "Angeles Saltonstall",  "interests": [ "Tennis", "Fishing", "Movies" ],  "children": [ {  "name": "Suzanna Saltonstall" } ] }
+{  "cid": 103,  "name": "Rosamond Milera",  "interests": [ "Cigars" ],  "children": [  ] }
+{  "cid": 328,  "name": "Mallory Sheffey",  "age": 27,  "address": {  "number": 8532,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Cooking" ],  "children": [ {  "name": "Regan Sheffey",  "age": 14 } ] }
+{  "cid": 287,  "name": "Cheryle Protano",  "interests": [ "Walking", "Coffee", "Puzzles", "Coffee" ],  "children": [ {  "name": "Karine Protano",  "age": 41 }, {  "name": "Mafalda Protano",  "age": 31 } ] }
+{  "cid": 928,  "name": "Maddie Diclaudio",  "age": 33,  "address": {  "number": 4674,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Base Jumping", "Databases", "Bass" ],  "children": [ {  "name": "Dominique Diclaudio",  "age": 12 } ] }
+{  "cid": 321,  "name": "Lidia Cicatello",  "interests": [ "Bass", "Movies", "Cooking", "Wine" ],  "children": [  ] }
+{  "cid": 977,  "name": "Ferdinand Barchick",  "age": 58,  "address": {  "number": 8278,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles", "Basketball", "Bass", "Fishing" ],  "children": [ {  "name": "Margeret Barchick",  "age": 32 }, {  "name": "Dwana Barchick" }, {  "name": "Kathryn Barchick" }, {  "name": "Tam Barchick" } ] }
+{  "cid": 642,  "name": "Odell Nova",  "age": 25,  "address": {  "number": 896,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Video Games", "Squash", "Music" ],  "children": [ {  "name": "Leopoldo Nova" }, {  "name": "Rickey Nova" }, {  "name": "Mike Nova",  "age": 14 }, {  "name": "Tamie Nova",  "age": 14 } ] }
+{  "cid": 288,  "name": "Sharice Bachicha",  "interests": [  ],  "children": [  ] }
+{  "cid": 261,  "name": "Aubrey Smulik",  "interests": [ "Music", "Coffee", "Base Jumping", "Fishing" ],  "children": [  ] }
+{  "cid": 395,  "name": "Bob Layman",  "age": 61,  "address": {  "number": 3646,  "street": "Washington St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [  ] }
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+{  "cid": 814,  "name": "Harriette Kasmarek",  "age": 68,  "address": {  "number": 7191,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Music", "Skiing" ],  "children": [ {  "name": "Melani Kasmarek",  "age": 24 }, {  "name": "Jesica Kasmarek",  "age": 22 } ] }
+{  "cid": 135,  "name": "Josette Dries",  "interests": [ "Base Jumping", "Movies" ],  "children": [ {  "name": "Ben Dries",  "age": 36 }, {  "name": "Wm Dries",  "age": 29 } ] }
+{  "cid": 542,  "name": "Eveline Smedley",  "age": 50,  "address": {  "number": 5513,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Skiing", "Walking" ],  "children": [ {  "name": "Lynsey Smedley",  "age": 26 } ] }
+{  "cid": 200,  "name": "Stacey Bertran",  "age": 78,  "address": {  "number": 9050,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Eugenia Bertran",  "age": 59 }, {  "name": "Lorri Bertran",  "age": 29 }, {  "name": "Corrie Bertran",  "age": 52 } ] }
+{  "cid": 535,  "name": "Juana Hirliman",  "age": 87,  "address": {  "number": 6763,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Movies" ],  "children": [ {  "name": "Ursula Hirliman",  "age": 40 }, {  "name": "Doretha Hirliman",  "age": 30 }, {  "name": "Leisha Hirliman",  "age": 49 } ] }
+{  "cid": 251,  "name": "Janeen Galston",  "interests": [ "Basketball", "Base Jumping" ],  "children": [  ] }
+{  "cid": 939,  "name": "Iris Moore",  "age": 23,  "address": {  "number": 8122,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Books", "Skiing", "Basketball", "Coffee" ],  "children": [ {  "name": "Consuela Moore" }, {  "name": "Delsie Moore" }, {  "name": "Stefan Moore",  "age": 11 } ] }
+{  "cid": 626,  "name": "Sydney Josten",  "age": 44,  "address": {  "number": 4815,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Cigars" ],  "children": [ {  "name": "Basil Josten",  "age": 14 }, {  "name": "Yasuko Josten" } ] }
+{  "cid": 438,  "name": "Allegra Pefanis",  "interests": [ "Computers", "Music", "Cigars" ],  "children": [  ] }
+{  "cid": 441,  "name": "Jamison Reeser",  "age": 84,  "address": {  "number": 9376,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Tennis" ],  "children": [ {  "name": "Elena Reeser",  "age": 28 } ] }
+{  "cid": 800,  "name": "Karon Johnsen",  "interests": [ "Movies" ],  "children": [ {  "name": "Roselee Johnsen",  "age": 25 } ] }
+{  "cid": 516,  "name": "Taunya Berkbigler",  "age": 82,  "address": {  "number": 5441,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Databases", "Tennis" ],  "children": [ {  "name": "Cherry Berkbigler",  "age": 27 }, {  "name": "Perry Berkbigler" } ] }
+{  "cid": 847,  "name": "Ashton Korba",  "age": 25,  "address": {  "number": 6450,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Cigars", "Computers", "Walking", "Video Games" ],  "children": [  ] }
+{  "cid": 476,  "name": "Kai Saggese",  "interests": [ "Squash", "Puzzles", "Books", "Movies" ],  "children": [  ] }
+{  "cid": 300,  "name": "Garret Colgrove",  "age": 85,  "address": {  "number": 9937,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Base Jumping", "Puzzles", "Fishing" ],  "children": [ {  "name": "Janna Colgrove" }, {  "name": "Jerilyn Colgrove",  "age": 35 } ] }
+{  "cid": 16,  "name": "Felisa Auletta",  "age": 55,  "address": {  "number": 7737,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Skiing", "Coffee", "Wine" ],  "children": [ {  "name": "Rosalia Auletta",  "age": 36 } ] }
+{  "cid": 23,  "name": "Micheal Konen",  "interests": [  ],  "children": [ {  "name": "Myong Konen",  "age": 26 }, {  "name": "Celinda Konen",  "age": 33 }, {  "name": "Tammy Konen",  "age": 53 }, {  "name": "Chester Konen" } ] }
+{  "cid": 580,  "name": "Liana Gabbert",  "interests": [ "Coffee", "Tennis", "Bass", "Running" ],  "children": [  ] }
+{  "cid": 341,  "name": "Francene Deats",  "interests": [ "Walking", "Databases", "Cigars", "Bass" ],  "children": [ {  "name": "Caron Deats" }, {  "name": "Geralyn Deats" }, {  "name": "Darell Deats" } ] }
+{  "cid": 323,  "name": "Rebeca Grisostomo",  "age": 26,  "address": {  "number": 399,  "street": "View St.",  "city": "Portland" },  "interests": [ "Music" ],  "children": [ {  "name": "Iva Grisostomo",  "age": 12 }, {  "name": "Ha Grisostomo" }, {  "name": "Lorna Grisostomo" } ] }
+{  "cid": 410,  "name": "Jennie Longhenry",  "age": 82,  "address": {  "number": 7427,  "street": "Main St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Charles Longhenry",  "age": 61 }, {  "name": "Faviola Longhenry",  "age": 25 }, {  "name": "Darline Longhenry" }, {  "name": "Lorean Longhenry" } ] }
+{  "cid": 4,  "name": "Bernita Gungor",  "age": 87,  "address": {  "number": 1208,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Walking" ],  "children": [ {  "name": "Valencia Gungor",  "age": 72 }, {  "name": "Evangeline Gungor",  "age": 76 }, {  "name": "Odell Gungor" }, {  "name": "Denny Gungor" } ] }
+{  "cid": 204,  "name": "Londa Herdt",  "interests": [  ],  "children": [ {  "name": "Marnie Herdt",  "age": 47 } ] }
+{  "cid": 270,  "name": "Lavon Ascenzo",  "interests": [ "Books", "Skiing" ],  "children": [  ] }
+{  "cid": 607,  "name": "Bert Garigliano",  "age": 71,  "address": {  "number": 3881,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Walking", "Wine" ],  "children": [ {  "name": "Junior Garigliano",  "age": 42 }, {  "name": "Willa Garigliano",  "age": 21 }, {  "name": "Carlo Garigliano" } ] }
+{  "cid": 87,  "name": "Torie Horuath",  "age": 21,  "address": {  "number": 2713,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Coffee", "Puzzles", "Cigars", "Walking" ],  "children": [ {  "name": "Joshua Horuath",  "age": 10 } ] }
+{  "cid": 742,  "name": "Andy Schifo",  "age": 36,  "address": {  "number": 4422,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Basketball" ],  "children": [  ] }
+{  "cid": 840,  "name": "Delicia Devoy",  "interests": [ "Fishing", "Running", "Skiing", "Video Games" ],  "children": [ {  "name": "Chan Devoy",  "age": 20 }, {  "name": "Bobbi Devoy",  "age": 30 }, {  "name": "Alyse Devoy",  "age": 40 } ] }
+{  "cid": 810,  "name": "Myron Dumlao",  "interests": [ "Wine", "Coffee" ],  "children": [ {  "name": "Josie Dumlao",  "age": 36 } ] }
+{  "cid": 446,  "name": "Lilly Grannell",  "age": 21,  "address": {  "number": 5894,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Computers", "Tennis", "Puzzles", "Books" ],  "children": [ {  "name": "Victor Grannell" } ] }
+{  "cid": 940,  "name": "Kitty Nalepka",  "interests": [ "Movies", "Wine", "Basketball" ],  "children": [ {  "name": "Kendra Nalepka" } ] }
+{  "cid": 634,  "name": "Katherina Parzych",  "interests": [  ],  "children": [ {  "name": "Modesta Parzych" }, {  "name": "Darin Parzych",  "age": 20 } ] }
+{  "cid": 493,  "name": "Lindsey Trout",  "age": 86,  "address": {  "number": 7619,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Base Jumping", "Skiing" ],  "children": [ {  "name": "Madlyn Trout",  "age": 58 }, {  "name": "Amie Trout",  "age": 72 } ] }
+{  "cid": 802,  "name": "Sang Hollman",  "interests": [ "Skiing" ],  "children": [ {  "name": "Carman Hollman" }, {  "name": "Kirstie Hollman",  "age": 40 }, {  "name": "Jacquetta Hollman" } ] }
+{  "cid": 803,  "name": "Yolonda Korf",  "interests": [ "Bass", "Skiing", "Music" ],  "children": [ {  "name": "Ivette Korf" }, {  "name": "Lashon Korf" } ] }
+{  "cid": 459,  "name": "Mable Ellwein",  "age": 60,  "address": {  "number": 1138,  "street": "Lake St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Stan Ellwein",  "age": 19 }, {  "name": "Ashlea Ellwein",  "age": 13 }, {  "name": "Tiesha Ellwein",  "age": 28 } ] }
+{  "cid": 154,  "name": "Jonelle Jephson",  "age": 39,  "address": {  "number": 2855,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Movies", "Basketball", "Tennis", "Base Jumping" ],  "children": [  ] }
+{  "cid": 959,  "name": "Hazel Haydon",  "age": 86,  "address": {  "number": 4530,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Tennis", "Cigars", "Squash", "Basketball" ],  "children": [ {  "name": "Micki Haydon",  "age": 33 }, {  "name": "Hollis Haydon",  "age": 23 }, {  "name": "Sonny Haydon",  "age": 71 } ] }
+{  "cid": 471,  "name": "Nicol Majersky",  "interests": [ "Video Games", "Books" ],  "children": [ {  "name": "Alise Majersky" }, {  "name": "Kathline Majersky",  "age": 53 }, {  "name": "Charlie Majersky",  "age": 45 }, {  "name": "Helaine Majersky" } ] }
+{  "cid": 999,  "name": "Bo Chaim",  "age": 59,  "address": {  "number": 8050,  "street": "View St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Zandra Chaim",  "age": 42 }, {  "name": "Theda Chaim",  "age": 14 }, {  "name": "Sharika Chaim",  "age": 22 } ] }
+{  "cid": 622,  "name": "Telma Rives",  "interests": [ "Basketball" ],  "children": [ {  "name": "Maribeth Rives",  "age": 42 }, {  "name": "Youlanda Rives",  "age": 13 }, {  "name": "Trang Rives" }, {  "name": "Hyun Rives" } ] }
+{  "cid": 679,  "name": "Maggie Kribs",  "age": 78,  "address": {  "number": 2846,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Video Games", "Books", "Databases", "Tennis" ],  "children": [ {  "name": "Estell Kribs",  "age": 54 }, {  "name": "Ranae Kribs",  "age": 54 }, {  "name": "Jalisa Kribs" } ] }
+{  "cid": 998,  "name": "Barry Schmaus",  "age": 65,  "address": {  "number": 4894,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Ma Schmaus",  "age": 40 }, {  "name": "Lashawn Schmaus",  "age": 13 }, {  "name": "Georgianne Schmaus",  "age": 38 } ] }
+{  "cid": 206,  "name": "Armand Hauersperger",  "age": 67,  "address": {  "number": 7266,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Wine" ],  "children": [ {  "name": "Charlott Hauersperger",  "age": 47 }, {  "name": "Kayla Hauersperger" }, {  "name": "Maris Hauersperger",  "age": 52 } ] }
+{  "cid": 424,  "name": "Camila Rightmire",  "age": 25,  "address": {  "number": 7542,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Bass", "Running", "Puzzles" ],  "children": [ {  "name": "Donny Rightmire",  "age": 14 }, {  "name": "Karlene Rightmire",  "age": 10 }, {  "name": "Nicholas Rightmire" }, {  "name": "Margareta Rightmire" } ] }
+{  "cid": 677,  "name": "Brigid Sarabia",  "age": 89,  "address": {  "number": 918,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Elisa Sarabia" }, {  "name": "Pura Sarabia",  "age": 56 } ] }
+{  "cid": 475,  "name": "Brinda Gouker",  "interests": [  ],  "children": [ {  "name": "Gayle Gouker",  "age": 52 } ] }
+{  "cid": 683,  "name": "Dodie Crall",  "age": 37,  "address": {  "number": 1337,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Wine" ],  "children": [ {  "name": "Cassy Crall" }, {  "name": "Thu Crall",  "age": 19 } ] }
+{  "cid": 869,  "name": "Lino Wooderson",  "interests": [  ],  "children": [ {  "name": "Nola Wooderson" }, {  "name": "Leticia Wooderson",  "age": 36 }, {  "name": "Bernardine Wooderson" } ] }
+{  "cid": 400,  "name": "Jeffery Maresco",  "interests": [ "Coffee", "Bass" ],  "children": [  ] }
+{  "cid": 756,  "name": "Marisol Noyes",  "interests": [  ],  "children": [ {  "name": "Delora Noyes" }, {  "name": "Jonelle Noyes",  "age": 44 } ] }
+{  "cid": 464,  "name": "Petra Kinsel",  "interests": [ "Wine" ],  "children": [ {  "name": "Janise Kinsel" }, {  "name": "Donnie Kinsel",  "age": 26 }, {  "name": "Joana Kinsel",  "age": 12 } ] }
+{  "cid": 73,  "name": "Kelsey Flever",  "age": 20,  "address": {  "number": 3555,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Tennis", "Puzzles", "Video Games" ],  "children": [ {  "name": "Isis Flever" }, {  "name": "Gonzalo Flever" } ] }
+{  "cid": 333,  "name": "Conchita Olivera",  "age": 37,  "address": {  "number": 8519,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Trenton Olivera" }, {  "name": "Shin Olivera",  "age": 26 }, {  "name": "Everett Olivera",  "age": 15 }, {  "name": "Shera Olivera",  "age": 20 } ] }
+{  "cid": 51,  "name": "Simonne Cape",  "interests": [ "Bass", "Bass", "Books" ],  "children": [ {  "name": "Leland Cape" }, {  "name": "Gearldine Cape" } ] }
+{  "cid": 414,  "name": "Sixta Smithheart",  "interests": [ "Skiing", "Books", "Computers" ],  "children": [ {  "name": "Nicholas Smithheart" } ] }
+{  "cid": 367,  "name": "Cassondra Fabiani",  "interests": [ "Squash", "Tennis" ],  "children": [ {  "name": "Evia Fabiani" }, {  "name": "Chaya Fabiani" }, {  "name": "Sherman Fabiani" }, {  "name": "Kathi Fabiani",  "age": 54 } ] }
+{  "cid": 806,  "name": "Corliss Sharratt",  "interests": [ "Basketball", "Cigars", "Cooking" ],  "children": [ {  "name": "Albertine Sharratt" }, {  "name": "Nobuko Sharratt",  "age": 29 }, {  "name": "Neil Sharratt" } ] }
+{  "cid": 944,  "name": "Johana Hisman",  "interests": [ "Wine" ],  "children": [ {  "name": "Kirstin Hisman",  "age": 43 }, {  "name": "Darwin Hisman",  "age": 29 } ] }
+{  "cid": 850,  "name": "Garnet Younce",  "interests": [ "Databases", "Video Games", "Books" ],  "children": [ {  "name": "Syble Younce",  "age": 16 } ] }
+{  "cid": 253,  "name": "Rosaura Maitland",  "age": 71,  "address": {  "number": 6403,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Cigars", "Basketball", "Coffee", "Cigars" ],  "children": [ {  "name": "Letisha Maitland",  "age": 43 }, {  "name": "Margart Maitland",  "age": 13 }, {  "name": "Neal Maitland" }, {  "name": "Hayden Maitland" } ] }
+{  "cid": 911,  "name": "Eileen Bartolomeo",  "age": 20,  "address": {  "number": 8915,  "street": "Main St.",  "city": "Portland" },  "interests": [  ],  "children": [  ] }
+{  "cid": 166,  "name": "Gregorio Plummer",  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Santiago Plummer" }, {  "name": "Malisa Plummer",  "age": 59 }, {  "name": "Tracie Plummer",  "age": 40 }, {  "name": "Florentina Plummer",  "age": 23 } ] }
+{  "cid": 45,  "name": "Jarrod Ridener",  "interests": [ "Skiing", "Tennis", "Squash", "Puzzles" ],  "children": [  ] }
+{  "cid": 667,  "name": "Shaniqua Deist",  "interests": [ "Puzzles", "Books", "Cigars" ],  "children": [  ] }
+{  "cid": 385,  "name": "Jody Favaron",  "age": 73,  "address": {  "number": 4724,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Elane Favaron",  "age": 47 }, {  "name": "Katherine Favaron",  "age": 38 } ] }
+{  "cid": 160,  "name": "Yevette Chanez",  "interests": [ "Bass", "Wine", "Coffee" ],  "children": [ {  "name": "Walter Chanez",  "age": 11 }, {  "name": "Pa Chanez",  "age": 27 } ] }
+{  "cid": 208,  "name": "Mirta Kenison",  "age": 68,  "address": {  "number": 2880,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Base Jumping", "Cigars", "Skiing", "Fishing" ],  "children": [ {  "name": "Dinorah Kenison",  "age": 15 }, {  "name": "Roy Kenison" } ] }
+{  "cid": 42,  "name": "Asley Simco",  "age": 38,  "address": {  "number": 3322,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Fishing", "Running", "Cigars" ],  "children": [ {  "name": "Micheal Simco" }, {  "name": "Lawerence Simco" } ] }
+{  "cid": 396,  "name": "Delfina Calcara",  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Sybil Calcara" } ] }
+{  "cid": 67,  "name": "Tobie Mattan",  "interests": [  ],  "children": [  ] }
+{  "cid": 14,  "name": "Chance Nicoson",  "interests": [ "Tennis" ],  "children": [ {  "name": "Willette Nicoson",  "age": 39 }, {  "name": "Glennis Nicoson" }, {  "name": "Philip Nicoson" }, {  "name": "Cody Nicoson",  "age": 26 } ] }
+{  "cid": 363,  "name": "Merlene Hoying",  "age": 25,  "address": {  "number": 2105,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Squash", "Squash", "Music" ],  "children": [ {  "name": "Andrew Hoying",  "age": 10 } ] }
+{  "cid": 658,  "name": "Truman Leitner",  "interests": [ "Computers", "Bass", "Walking" ],  "children": [  ] }
+{  "cid": 78,  "name": "Wesley Huggler",  "age": 80,  "address": {  "number": 3078,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Base Jumping", "Movies", "Skiing" ],  "children": [ {  "name": "Chassidy Huggler" }, {  "name": "Emogene Huggler" }, {  "name": "Cheryle Huggler" } ] }
+{  "cid": 436,  "name": "Xenia Pool",  "interests": [ "Books" ],  "children": [  ] }
+{  "cid": 353,  "name": "Melody Bernas",  "age": 76,  "address": {  "number": 6783,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Kristel Bernas",  "age": 45 }, {  "name": "Clorinda Bernas",  "age": 10 }, {  "name": "Natosha Bernas" } ] }
+{  "cid": 879,  "name": "Vinnie Antoniewicz",  "age": 45,  "address": {  "number": 1633,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Cooking", "Puzzles" ],  "children": [  ] }
+{  "cid": 449,  "name": "Jacinda Markle",  "interests": [ "Basketball", "Basketball", "Computers" ],  "children": [ {  "name": "Tam Markle",  "age": 45 } ] }
+{  "cid": 728,  "name": "Bruno Freeburger",  "age": 84,  "address": {  "number": 2482,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Computers" ],  "children": [ {  "name": "Shizuko Freeburger" } ] }
+{  "cid": 488,  "name": "Dannielle Wilkie",  "interests": [ "Running", "Fishing", "Coffee", "Basketball" ],  "children": [ {  "name": "Vita Wilkie",  "age": 17 }, {  "name": "Marisa Wilkie" }, {  "name": "Faustino Wilkie" } ] }
+{  "cid": 479,  "name": "Danilo Varney",  "age": 17,  "address": {  "number": 9330,  "street": "Hill St.",  "city": "Portland" },  "interests": [ "Wine" ],  "children": [ {  "name": "Shelby Varney" }, {  "name": "Fidela Varney" }, {  "name": "Maynard Varney" }, {  "name": "Lindsay Varney" } ] }
+{  "cid": 401,  "name": "Moises Jago",  "age": 27,  "address": {  "number": 3773,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Music" ],  "children": [ {  "name": "Shoshana Jago" }, {  "name": "Juliet Jago" }, {  "name": "Berneice Jago",  "age": 13 } ] }
+{  "cid": 338,  "name": "Dorthey Roncskevitz",  "age": 38,  "address": {  "number": 4366,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Computers" ],  "children": [ {  "name": "Mindy Roncskevitz" } ] }
+{  "cid": 445,  "name": "Walton Komo",  "age": 16,  "address": {  "number": 8769,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Running", "Basketball", "Tennis" ],  "children": [  ] }
+{  "cid": 691,  "name": "Sharee Charrier",  "age": 17,  "address": {  "number": 6693,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Puzzles", "Cooking", "Bass" ],  "children": [ {  "name": "Odessa Charrier" } ] }
+{  "cid": 271,  "name": "Carey Ronin",  "age": 44,  "address": {  "number": 8141,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Cigars", "Video Games" ],  "children": [ {  "name": "Lonny Ronin" }, {  "name": "Armanda Ronin" } ] }
+{  "cid": 63,  "name": "Mayra Hait",  "interests": [ "Cigars", "Cigars", "Bass", "Books" ],  "children": [  ] }
+{  "cid": 274,  "name": "Claude Harral",  "interests": [ "Squash", "Bass", "Cooking" ],  "children": [ {  "name": "Archie Harral" }, {  "name": "Royal Harral" } ] }
+{  "cid": 335,  "name": "Odessa Dammeyer",  "age": 18,  "address": {  "number": 6828,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Basketball", "Bass", "Cigars" ],  "children": [ {  "name": "Lindsey Dammeyer" } ] }
+{  "cid": 985,  "name": "Arnette Farlow",  "age": 23,  "address": {  "number": 7843,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Running", "Databases" ],  "children": [ {  "name": "Lora Farlow",  "age": 12 }, {  "name": "Arlen Farlow",  "age": 11 }, {  "name": "Rodney Farlow" }, {  "name": "Tori Farlow",  "age": 11 } ] }
+{  "cid": 786,  "name": "Johnsie Maheux",  "interests": [ "Cigars" ],  "children": [ {  "name": "Danuta Maheux" } ] }
+{  "cid": 528,  "name": "Tamela Witherbee",  "interests": [  ],  "children": [ {  "name": "Penney Witherbee" } ] }
+{  "cid": 186,  "name": "Krystle Spangler",  "age": 15,  "address": {  "number": 4697,  "street": "Cedar St.",  "city": "Seattle" },  "interests": [ "Cigars", "Squash", "Coffee", "Video Games" ],  "children": [  ] }
+{  "cid": 721,  "name": "Jesica Tinder",  "age": 28,  "address": {  "number": 5526,  "street": "7th St.",  "city": "Mountain View" },  "interests": [  ],  "children": [  ] }
+{  "cid": 415,  "name": "Valentin Mclarney",  "interests": [ "Squash", "Squash", "Video Games" ],  "children": [ {  "name": "Vanda Mclarney",  "age": 17 } ] }
+{  "cid": 805,  "name": "Gaylord Ginder",  "interests": [ "Databases", "Coffee" ],  "children": [ {  "name": "Lucina Ginder" }, {  "name": "Harriett Ginder" } ] }
+{  "cid": 142,  "name": "Ervin Softleigh",  "interests": [ "Computers", "Skiing", "Cooking", "Coffee" ],  "children": [ {  "name": "Russell Softleigh",  "age": 50 }, {  "name": "Kristy Softleigh",  "age": 54 }, {  "name": "Refugio Softleigh" } ] }
+{  "cid": 962,  "name": "Taryn Coley",  "interests": [ "Running", "Basketball", "Cooking" ],  "children": [  ] }
+{  "cid": 935,  "name": "Sharita Aspegren",  "interests": [  ],  "children": [ {  "name": "Russell Aspegren",  "age": 35 }, {  "name": "Bernardina Aspegren" }, {  "name": "Isobel Aspegren",  "age": 11 }, {  "name": "Reva Aspegren" } ] }
+{  "cid": 995,  "name": "Kiersten Basila",  "interests": [  ],  "children": [ {  "name": "Norman Basila",  "age": 17 }, {  "name": "Reginia Basila" }, {  "name": "Gilberto Basila" }, {  "name": "Elvira Basila",  "age": 49 } ] }
+{  "cid": 884,  "name": "Laila Marta",  "interests": [ "Fishing", "Movies" ],  "children": [ {  "name": "Carlota Marta",  "age": 19 } ] }
+{  "cid": 704,  "name": "Melodee Clemons",  "interests": [ "Base Jumping", "Tennis", "Video Games" ],  "children": [ {  "name": "Doreatha Clemons",  "age": 22 } ] }
+{  "cid": 680,  "name": "Domenica Qunnarath",  "interests": [  ],  "children": [  ] }
+{  "cid": 138,  "name": "Ora Villafane",  "interests": [ "Walking", "Cooking" ],  "children": [ {  "name": "Deeann Villafane",  "age": 22 }, {  "name": "Cody Villafane",  "age": 47 } ] }
+{  "cid": 55,  "name": "Terrence Bryant",  "age": 12,  "address": {  "number": 3188,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Wine", "Cooking" ],  "children": [ {  "name": "Dayna Bryant" } ] }
+{  "cid": 562,  "name": "Etta Hooton",  "interests": [ "Databases", "Cigars", "Music", "Video Games" ],  "children": [ {  "name": "Sherice Hooton" }, {  "name": "Estefana Hooton",  "age": 38 }, {  "name": "Nidia Hooton",  "age": 47 }, {  "name": "Erwin Hooton" } ] }
+{  "cid": 827,  "name": "Clementina Papin",  "interests": [ "Music", "Basketball", "Cigars" ],  "children": [ {  "name": "Catina Papin" }, {  "name": "Demetrius Papin",  "age": 59 }, {  "name": "Marylou Papin",  "age": 12 }, {  "name": "Apryl Papin",  "age": 16 } ] }
+{  "cid": 256,  "name": "Chester Rosenberg",  "age": 46,  "address": {  "number": 8673,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Basketball" ],  "children": [ {  "name": "Gemma Rosenberg" }, {  "name": "Marty Rosenberg" } ] }
+{  "cid": 628,  "name": "Tomoko Alcantara",  "age": 56,  "address": {  "number": 3556,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Running", "Tennis" ],  "children": [ {  "name": "Babara Alcantara",  "age": 31 }, {  "name": "Ilana Alcantara" }, {  "name": "Maren Alcantara",  "age": 45 } ] }
+{  "cid": 696,  "name": "Nadia Dunklee",  "interests": [  ],  "children": [ {  "name": "Mendy Dunklee",  "age": 17 }, {  "name": "Edgar Dunklee" }, {  "name": "Pasquale Dunklee" }, {  "name": "Colin Dunklee" } ] }
+{  "cid": 760,  "name": "Karena Romp",  "interests": [ "Cigars", "Databases", "Squash", "Tennis" ],  "children": [ {  "name": "Donn Romp" }, {  "name": "Antonio Romp" }, {  "name": "Kattie Romp",  "age": 54 }, {  "name": "Marylynn Romp",  "age": 53 } ] }
+{  "cid": 428,  "name": "Tiffany Waye",  "interests": [ "Basketball", "Cigars" ],  "children": [ {  "name": "Berna Waye" }, {  "name": "Kiersten Waye" }, {  "name": "Romeo Waye" }, {  "name": "Marvel Waye",  "age": 56 } ] }
+{  "cid": 458,  "name": "Ivan Sien",  "age": 17,  "address": {  "number": 9981,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Cooking", "Coffee" ],  "children": [ {  "name": "Laurence Sien" }, {  "name": "Nelle Sien" }, {  "name": "Thalia Sien" } ] }
+{  "cid": 776,  "name": "Dagmar Sarkis",  "interests": [ "Basketball", "Running", "Wine" ],  "children": [ {  "name": "Tari Sarkis" }, {  "name": "Rana Sarkis",  "age": 56 }, {  "name": "Merissa Sarkis" }, {  "name": "Lori Sarkis",  "age": 26 } ] }
+{  "cid": 381,  "name": "Kassandra Ereth",  "interests": [ "Base Jumping", "Base Jumping", "Databases", "Walking" ],  "children": [ {  "name": "Angelina Ereth",  "age": 46 }, {  "name": "Tristan Ereth" }, {  "name": "Johnny Ereth" } ] }
+{  "cid": 172,  "name": "Weldon Alquesta",  "interests": [ "Music", "Fishing", "Music" ],  "children": [ {  "name": "Kip Alquesta" } ] }
+{  "cid": 54,  "name": "Haywood Vasiloff",  "age": 63,  "address": {  "number": 8780,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Celsa Vasiloff",  "age": 40 }, {  "name": "Shawana Vasiloff",  "age": 43 }, {  "name": "Joel Vasiloff",  "age": 42 }, {  "name": "Timmy Vasiloff",  "age": 33 } ] }
+{  "cid": 675,  "name": "Camellia Brickett",  "interests": [ "Running" ],  "children": [ {  "name": "Leona Brickett" }, {  "name": "Mario Brickett" }, {  "name": "Nadine Brickett",  "age": 35 }, {  "name": "Marlon Brickett",  "age": 31 } ] }
+{  "cid": 177,  "name": "Wilda Hanisch",  "interests": [ "Wine", "Computers" ],  "children": [ {  "name": "Shannan Hanisch" }, {  "name": "Marissa Hanisch",  "age": 30 }, {  "name": "Keely Hanisch",  "age": 54 }, {  "name": "Humberto Hanisch",  "age": 17 } ] }
+{  "cid": 266,  "name": "Carlee Friddle",  "age": 74,  "address": {  "number": 6538,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Databases" ],  "children": [ {  "name": "Candie Friddle" }, {  "name": "Zoila Friddle",  "age": 59 } ] }
+{  "cid": 584,  "name": "Bailey Janes",  "interests": [  ],  "children": [ {  "name": "Marylou Janes" }, {  "name": "Andra Janes" } ] }
+{  "cid": 36,  "name": "Neoma Preist",  "age": 69,  "address": {  "number": 4830,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Databases", "Computers", "Coffee" ],  "children": [ {  "name": "Shery Preist" }, {  "name": "Kelvin Preist",  "age": 43 } ] }
+{  "cid": 417,  "name": "Irene Funderberg",  "age": 45,  "address": {  "number": 8503,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Music", "Skiing", "Running" ],  "children": [ {  "name": "Lyndia Funderberg",  "age": 14 }, {  "name": "Herta Funderberg" } ] }
+{  "cid": 282,  "name": "Emelda Dawood",  "age": 32,  "address": {  "number": 5261,  "street": "View St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Venus Dawood",  "age": 12 }, {  "name": "Gertrude Dawood" }, {  "name": "Yen Dawood" }, {  "name": "Theresa Dawood",  "age": 16 } ] }
+{  "cid": 31,  "name": "Venus Toboz",  "age": 44,  "address": {  "number": 9465,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Running" ],  "children": [ {  "name": "Ashlie Toboz" } ] }
+{  "cid": 920,  "name": "Mirtha Dellbringge",  "interests": [ "Walking", "Basketball", "Basketball" ],  "children": [ {  "name": "Morgan Dellbringge",  "age": 51 }, {  "name": "Alease Dellbringge",  "age": 35 } ] }
+{  "cid": 932,  "name": "Kraig Bomia",  "interests": [ "Music" ],  "children": [  ] }
+{  "cid": 269,  "name": "Dante Sharko",  "interests": [ "Base Jumping" ],  "children": [ {  "name": "Ahmad Sharko",  "age": 34 }, {  "name": "Mona Sharko" }, {  "name": "Stephaine Sharko",  "age": 42 }, {  "name": "Adrianna Sharko" } ] }
+{  "cid": 277,  "name": "Malena Smock",  "interests": [ "Running", "Base Jumping" ],  "children": [ {  "name": "Inocencia Smock",  "age": 50 }, {  "name": "Cleveland Smock" } ] }
+{  "cid": 807,  "name": "Maryanne Kuzminski",  "age": 21,  "address": {  "number": 1601,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Running" ],  "children": [ {  "name": "India Kuzminski" }, {  "name": "Adell Kuzminski" } ] }
+{  "cid": 515,  "name": "Connie Banis",  "interests": [ "Coffee" ],  "children": [ {  "name": "Brittni Banis" }, {  "name": "Deloras Banis",  "age": 25 } ] }
+{  "cid": 225,  "name": "Shantel Drapeaux",  "interests": [ "Databases" ],  "children": [ {  "name": "Felicidad Drapeaux" }, {  "name": "Wanetta Drapeaux",  "age": 52 }, {  "name": "Louise Drapeaux",  "age": 28 }, {  "name": "Pat Drapeaux" } ] }
+{  "cid": 741,  "name": "Lesia Risatti",  "age": 48,  "address": {  "number": 7378,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Fishing", "Wine", "Databases" ],  "children": [ {  "name": "Tangela Risatti" }, {  "name": "Leonel Risatti",  "age": 33 }, {  "name": "Cythia Risatti",  "age": 36 } ] }
+{  "cid": 8,  "name": "Audria Haylett",  "age": 44,  "address": {  "number": 4872,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Cooking", "Fishing", "Video Games" ],  "children": [ {  "name": "Lacie Haylett",  "age": 19 } ] }
+{  "cid": 33,  "name": "Rayford Velmontes",  "interests": [ "Fishing", "Video Games" ],  "children": [  ] }
+{  "cid": 674,  "name": "Alice Gurrola",  "interests": [ "Puzzles", "Skiing", "Video Games", "Computers" ],  "children": [ {  "name": "Lee Gurrola" } ] }
+{  "cid": 788,  "name": "Franklyn Crowner",  "age": 56,  "address": {  "number": 4186,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Base Jumping", "Base Jumping", "Books", "Computers" ],  "children": [ {  "name": "Adrian Crowner",  "age": 43 }, {  "name": "Vasiliki Crowner" } ] }
+{  "cid": 980,  "name": "Harley Lappe",  "age": 56,  "address": {  "number": 647,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Books", "Cigars", "Basketball" ],  "children": [ {  "name": "Maxwell Lappe" }, {  "name": "Gemma Lappe",  "age": 32 }, {  "name": "Ester Lappe",  "age": 40 }, {  "name": "Myles Lappe",  "age": 36 } ] }
+{  "cid": 712,  "name": "Jack Lamoreux",  "age": 32,  "address": {  "number": 4486,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Rubin Lamoreux",  "age": 15 }, {  "name": "Jonelle Lamoreux",  "age": 10 }, {  "name": "Shonna Lamoreux" }, {  "name": "India Lamoreux",  "age": 17 } ] }
+{  "cid": 455,  "name": "Manual Altizer",  "age": 70,  "address": {  "number": 6293,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Running", "Fishing", "Coffee" ],  "children": [ {  "name": "Katherine Altizer" } ] }
+{  "cid": 904,  "name": "Holley Tofil",  "age": 51,  "address": {  "number": 8946,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Music", "Squash" ],  "children": [ {  "name": "Kristal Tofil" } ] }
+{  "cid": 880,  "name": "Sara Abo",  "interests": [ "Squash" ],  "children": [  ] }
+{  "cid": 284,  "name": "Mason Fuel",  "interests": [ "Bass", "Tennis", "Computers", "Coffee" ],  "children": [ {  "name": "Odis Fuel" }, {  "name": "Sanjuanita Fuel" } ] }
+{  "cid": 496,  "name": "Lonna Starkweather",  "age": 80,  "address": {  "number": 1162,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Coffee", "Bass", "Running" ],  "children": [ {  "name": "Matilda Starkweather" } ] }
+{  "cid": 657,  "name": "Rory Teachman",  "interests": [  ],  "children": [  ] }
+{  "cid": 257,  "name": "Altha Jastrzebski",  "age": 21,  "address": {  "number": 4405,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Puzzles" ],  "children": [  ] }
+{  "cid": 450,  "name": "Althea Mohammed",  "interests": [ "Fishing", "Databases" ],  "children": [ {  "name": "Jasper Mohammed" } ] }
+{  "cid": 801,  "name": "Julio Brun",  "age": 13,  "address": {  "number": 9774,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles", "Running", "Puzzles", "Base Jumping" ],  "children": [ {  "name": "Peter Brun" }, {  "name": "Remona Brun" }, {  "name": "Giovanni Brun" } ] }
+{  "cid": 891,  "name": "Jesusita Bhatia",  "age": 57,  "address": {  "number": 1476,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Walking" ],  "children": [  ] }
+{  "cid": 520,  "name": "Janay Bernbeck",  "interests": [ "Databases", "Databases" ],  "children": [ {  "name": "Aurea Bernbeck" }, {  "name": "Tiara Bernbeck" }, {  "name": "Alfredia Bernbeck",  "age": 26 } ] }
+{  "cid": 505,  "name": "Mike Runk",  "interests": [ "Databases", "Computers", "Running", "Video Games" ],  "children": [ {  "name": "Lashawn Runk",  "age": 21 } ] }
+{  "cid": 876,  "name": "Chelsie Motten",  "interests": [ "Music", "Squash", "Music", "Walking" ],  "children": [ {  "name": "Nida Motten" }, {  "name": "Taneka Motten",  "age": 10 }, {  "name": "Maynard Motten",  "age": 57 } ] }
+{  "cid": 993,  "name": "Shawn Irie",  "interests": [ "Fishing", "Cigars" ],  "children": [ {  "name": "Tonette Irie" } ] }
+{  "cid": 934,  "name": "Dessie Lockmiller",  "age": 70,  "address": {  "number": 4313,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Coffee", "Puzzles" ],  "children": [  ] }
+{  "cid": 564,  "name": "Inger Dargin",  "age": 56,  "address": {  "number": 8704,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Wine", "Running", "Computers" ],  "children": [  ] }
+{  "cid": 587,  "name": "Santos Monterio",  "age": 36,  "address": {  "number": 4454,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Databases", "Music", "Cooking" ],  "children": [ {  "name": "Lashonda Monterio" } ] }
+{  "cid": 854,  "name": "Angie Oyster",  "age": 32,  "address": {  "number": 8860,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Coffee", "Movies", "Fishing" ],  "children": [ {  "name": "Hugh Oyster",  "age": 10 } ] }
+{  "cid": 275,  "name": "Natalie Ifeanyi",  "interests": [  ],  "children": [  ] }
+{  "cid": 398,  "name": "Piedad Paranada",  "interests": [  ],  "children": [ {  "name": "Claribel Paranada",  "age": 22 }, {  "name": "Lincoln Paranada" }, {  "name": "Cecilia Paranada" } ] }
+{  "cid": 585,  "name": "Young Drube",  "age": 21,  "address": {  "number": 6960,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Basketball", "Fishing", "Walking" ],  "children": [ {  "name": "Irwin Drube" }, {  "name": "Gustavo Drube" } ] }
+{  "cid": 15,  "name": "Berry Faubel",  "age": 55,  "address": {  "number": 2806,  "street": "Oak St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Tiffiny Faubel",  "age": 12 }, {  "name": "Hilaria Faubel",  "age": 19 }, {  "name": "Wesley Faubel",  "age": 37 }, {  "name": "Wei Faubel",  "age": 28 } ] }
+{  "cid": 695,  "name": "Wyatt Eveleth",  "age": 28,  "address": {  "number": 5421,  "street": "View St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Orval Eveleth" }, {  "name": "Beth Eveleth",  "age": 11 }, {  "name": "Yuki Eveleth" }, {  "name": "Alyse Eveleth",  "age": 14 } ] }
+{  "cid": 555,  "name": "Agustina Bretthauer",  "interests": [ "Cigars" ],  "children": [ {  "name": "Arthur Bretthauer",  "age": 33 }, {  "name": "Titus Bretthauer",  "age": 33 }, {  "name": "Margret Bretthauer" } ] }
+{  "cid": 796,  "name": "Daniele Brisk",  "interests": [ "Walking", "Bass" ],  "children": [  ] }
+{  "cid": 570,  "name": "Lee Basora",  "interests": [ "Squash", "Cigars" ],  "children": [  ] }
+{  "cid": 572,  "name": "Darcy Polycarpe",  "age": 35,  "address": {  "number": 8051,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Computers", "Coffee", "Walking", "Walking" ],  "children": [ {  "name": "Kenneth Polycarpe" } ] }
+{  "cid": 25,  "name": "Goldie Vanhandel",  "age": 37,  "address": {  "number": 6568,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Bass", "Fishing", "Cigars" ],  "children": [  ] }
+{  "cid": 895,  "name": "Joie Siffert",  "interests": [ "Wine", "Skiing", "Puzzles", "Tennis" ],  "children": [ {  "name": "Erma Siffert" }, {  "name": "Natosha Siffert",  "age": 38 }, {  "name": "Somer Siffert",  "age": 27 } ] }
+{  "cid": 403,  "name": "Kayleigh Houey",  "interests": [ "Fishing", "Music" ],  "children": [ {  "name": "Ta Houey" }, {  "name": "Ayana Houey" }, {  "name": "Dominique Houey" }, {  "name": "Denise Houey",  "age": 48 } ] }
+{  "cid": 173,  "name": "Annamae Lucien",  "age": 46,  "address": {  "number": 1253,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Puzzles", "Cooking", "Squash" ],  "children": [ {  "name": "Sanjuana Lucien",  "age": 21 }, {  "name": "Nathanael Lucien",  "age": 27 }, {  "name": "Jae Lucien" }, {  "name": "Judith Lucien" } ] }
+{  "cid": 490,  "name": "Valentine Dolecki",  "interests": [ "Video Games", "Video Games", "Bass", "Bass" ],  "children": [ {  "name": "Rene Dolecki" }, {  "name": "Omega Dolecki",  "age": 37 }, {  "name": "Hedwig Dolecki" } ] }
+{  "cid": 877,  "name": "Nicki Lipkind",  "interests": [ "Books", "Movies" ],  "children": [ {  "name": "Yahaira Lipkind",  "age": 12 } ] }
+{  "cid": 720,  "name": "Vannesa Prabel",  "interests": [ "Basketball", "Cigars", "Running", "Video Games" ],  "children": [ {  "name": "Carter Prabel",  "age": 23 }, {  "name": "Rodger Prabel",  "age": 48 }, {  "name": "Odilia Prabel" } ] }
+{  "cid": 237,  "name": "Sona Hehn",  "age": 47,  "address": {  "number": 3720,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Computers", "Squash", "Coffee" ],  "children": [ {  "name": "Marquerite Hehn" }, {  "name": "Suellen Hehn",  "age": 29 }, {  "name": "Herb Hehn",  "age": 29 } ] }
+{  "cid": 35,  "name": "Saundra Aparo",  "age": 86,  "address": {  "number": 9550,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Cigars", "Skiing", "Video Games", "Books" ],  "children": [  ] }
+{  "cid": 332,  "name": "Malcom Cafasso",  "interests": [  ],  "children": [ {  "name": "Marie Cafasso" }, {  "name": "Asley Cafasso",  "age": 38 } ] }
+{  "cid": 866,  "name": "Bonita Kauphusman",  "interests": [  ],  "children": [  ] }
+{  "cid": 223,  "name": "Margurite Embelton",  "age": 19,  "address": {  "number": 554,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Running", "Fishing" ],  "children": [ {  "name": "Sherie Embelton" }, {  "name": "Monica Embelton" }, {  "name": "Jeanne Embelton" }, {  "name": "Santiago Embelton" } ] }
+{  "cid": 825,  "name": "Kirstie Rinebold",  "age": 57,  "address": {  "number": 9463,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Cooking", "Cigars", "Books" ],  "children": [ {  "name": "Vonda Rinebold" }, {  "name": "Man Rinebold",  "age": 21 } ] }
+{  "cid": 336,  "name": "Jalisa Talamantez",  "age": 78,  "address": {  "number": 9902,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Video Games", "Squash" ],  "children": [  ] }
+{  "cid": 176,  "name": "Kellie Andruszkiewic",  "interests": [ "Fishing", "Puzzles", "Wine", "Skiing" ],  "children": [ {  "name": "Xiao Andruszkiewic" }, {  "name": "Al Andruszkiewic",  "age": 43 } ] }
+{  "cid": 833,  "name": "Lakisha Petkoff",  "interests": [ "Coffee" ],  "children": [ {  "name": "Brittanie Petkoff" }, {  "name": "Ashli Petkoff" } ] }
+{  "cid": 192,  "name": "Shakira Delmonte",  "age": 10,  "address": {  "number": 8838,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Books", "Cigars", "Bass", "Base Jumping" ],  "children": [ {  "name": "Sergio Delmonte" }, {  "name": "Aida Delmonte" }, {  "name": "Juliane Delmonte" } ] }
+{  "cid": 737,  "name": "Jeffrey Chesson",  "age": 13,  "address": {  "number": 6833,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Tennis", "Computers" ],  "children": [ {  "name": "Clayton Chesson" }, {  "name": "Yi Chesson" } ] }
+{  "cid": 567,  "name": "Peggie Madhavan",  "interests": [ "Computers", "Bass" ],  "children": [  ] }
+{  "cid": 286,  "name": "Tara Sioma",  "age": 18,  "address": {  "number": 9425,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Dawna Sioma" }, {  "name": "Jeanne Sioma" } ] }
+{  "cid": 586,  "name": "Jeannine Donnerberg",  "interests": [  ],  "children": [ {  "name": "Mike Donnerberg" } ] }
+{  "cid": 494,  "name": "Delma Deever",  "age": 84,  "address": {  "number": 5044,  "street": "7th St.",  "city": "Seattle" },  "interests": [ "Computers", "Basketball", "Squash" ],  "children": [  ] }
+{  "cid": 922,  "name": "Shanice Lingle",  "age": 26,  "address": {  "number": 4753,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Sandie Lingle",  "age": 12 }, {  "name": "Nia Lingle",  "age": 13 }, {  "name": "Marilyn Lingle",  "age": 15 } ] }
+{  "cid": 706,  "name": "Miquel Caesar",  "age": 16,  "address": {  "number": 2176,  "street": "Park St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Shaniqua Caesar" }, {  "name": "Ellis Caesar" }, {  "name": "Bruna Caesar" }, {  "name": "Kayleen Caesar" } ] }
+{  "cid": 425,  "name": "Hellen Sutton",  "interests": [ "Books", "Coffee", "Basketball", "Squash" ],  "children": [ {  "name": "Nancy Sutton" } ] }
+{  "cid": 313,  "name": "Lasandra Raigosa",  "interests": [ "Walking", "Walking" ],  "children": [ {  "name": "Lanelle Raigosa" } ] }
+{  "cid": 382,  "name": "Cecily Sopata",  "interests": [ "Base Jumping", "Fishing", "Skiing", "Squash" ],  "children": [ {  "name": "Shonna Sopata" }, {  "name": "Stacy Sopata" } ] }
+{  "cid": 975,  "name": "Gary Whitemore",  "interests": [  ],  "children": [  ] }
+{  "cid": 553,  "name": "Mina Ciminera",  "interests": [ "Base Jumping", "Databases" ],  "children": [ {  "name": "Cornelius Ciminera" }, {  "name": "Rozanne Ciminera" }, {  "name": "Byron Ciminera" } ] }
+{  "cid": 525,  "name": "Miquel Hodnefield",  "age": 12,  "address": {  "number": 4784,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Darnell Hodnefield" }, {  "name": "Particia Hodnefield" } ] }
+{  "cid": 472,  "name": "Kelley Mischler",  "age": 38,  "address": {  "number": 7988,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Movies", "Cooking", "Skiing" ],  "children": [ {  "name": "Keila Mischler",  "age": 19 }, {  "name": "Evie Mischler",  "age": 15 } ] }
+{  "cid": 759,  "name": "Alaina Dadds",  "interests": [  ],  "children": [ {  "name": "Athena Dadds",  "age": 36 }, {  "name": "Denis Dadds" }, {  "name": "Nathanial Dadds",  "age": 42 }, {  "name": "Molly Dadds" } ] }
+{  "cid": 573,  "name": "Tyree Ketcher",  "interests": [ "Computers", "Walking" ],  "children": [ {  "name": "Aleisha Ketcher" }, {  "name": "Vonda Ketcher" }, {  "name": "Cyndy Ketcher",  "age": 13 }, {  "name": "Chassidy Ketcher",  "age": 30 } ] }
+{  "cid": 639,  "name": "Zena Seehusen",  "age": 24,  "address": {  "number": 6303,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Cooking", "Movies", "Music" ],  "children": [ {  "name": "Hester Seehusen" }, {  "name": "Coreen Seehusen",  "age": 12 } ] }
+{  "cid": 546,  "name": "Shawanna Lontz",  "interests": [ "Base Jumping", "Basketball", "Music", "Basketball" ],  "children": [ {  "name": "Stuart Lontz",  "age": 57 }, {  "name": "Elizbeth Lontz" }, {  "name": "Zulema Lontz",  "age": 45 }, {  "name": "Brett Lontz" } ] }
+{  "cid": 710,  "name": "Arlen Horka",  "interests": [ "Movies", "Coffee", "Walking" ],  "children": [ {  "name": "Valencia Horka" }, {  "name": "Wesley Horka" } ] }
+{  "cid": 373,  "name": "Heather Seward",  "interests": [ "Basketball" ],  "children": [ {  "name": "Glinda Seward",  "age": 59 }, {  "name": "Maribeth Seward" }, {  "name": "Teofila Seward" }, {  "name": "Clemencia Seward",  "age": 38 } ] }
+{  "cid": 169,  "name": "Casandra Fierge",  "age": 55,  "address": {  "number": 175,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Cigars" ],  "children": [  ] }
+{  "cid": 422,  "name": "Annmarie Whitcher",  "interests": [ "Cigars" ],  "children": [ {  "name": "Honey Whitcher" }, {  "name": "Dan Whitcher",  "age": 22 } ] }
+{  "cid": 377,  "name": "Zona Klint",  "age": 22,  "address": {  "number": 6320,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Evie Klint" }, {  "name": "Sharyl Klint",  "age": 11 }, {  "name": "Joaquina Klint",  "age": 11 }, {  "name": "Doloris Klint",  "age": 11 } ] }
+{  "cid": 139,  "name": "Micheline Argenal",  "interests": [ "Bass", "Walking", "Movies" ],  "children": [ {  "name": "Joye Argenal",  "age": 51 }, {  "name": "Richard Argenal",  "age": 46 }, {  "name": "Sarah Argenal",  "age": 21 }, {  "name": "Jacinda Argenal",  "age": 21 } ] }
+{  "cid": 713,  "name": "Galina Retterbush",  "interests": [ "Bass", "Squash" ],  "children": [ {  "name": "Janene Retterbush" }, {  "name": "Toby Retterbush",  "age": 15 }, {  "name": "Renato Retterbush" }, {  "name": "Annice Retterbush",  "age": 22 } ] }
+{  "cid": 349,  "name": "Cristine Hila",  "interests": [ "Books" ],  "children": [ {  "name": "Nyla Hila",  "age": 51 } ] }
+{  "cid": 690,  "name": "Gertrudis Gaetz",  "interests": [ "Fishing", "Cigars", "Coffee", "Wine" ],  "children": [  ] }
+{  "cid": 899,  "name": "Ada Kamealoha",  "interests": [  ],  "children": [ {  "name": "Juliann Kamealoha" }, {  "name": "Ilana Kamealoha",  "age": 25 }, {  "name": "Herminia Kamealoha",  "age": 55 }, {  "name": "Carli Kamealoha" } ] }
+{  "cid": 581,  "name": "Leigha Finkenbinder",  "interests": [  ],  "children": [ {  "name": "Lorine Finkenbinder",  "age": 29 }, {  "name": "Stephanie Finkenbinder",  "age": 28 } ] }
+{  "cid": 232,  "name": "Joey Potes",  "interests": [ "Bass", "Bass", "Base Jumping" ],  "children": [ {  "name": "Bobby Potes" } ] }
+{  "cid": 664,  "name": "Myra Dier",  "age": 37,  "address": {  "number": 8703,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Wine", "Movies", "Puzzles", "Cooking" ],  "children": [  ] }
+{  "cid": 416,  "name": "Marcelo Salzar",  "age": 74,  "address": {  "number": 4091,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Skiing", "Base Jumping", "Music", "Running" ],  "children": [ {  "name": "Nickole Salzar" }, {  "name": "Rafael Salzar" }, {  "name": "Lois Salzar",  "age": 29 }, {  "name": "Deeanna Salzar" } ] }
+{  "cid": 492,  "name": "Gene Alcazar",  "age": 59,  "address": {  "number": 9650,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Computers" ],  "children": [ {  "name": "Olympia Alcazar" }, {  "name": "Mark Alcazar",  "age": 37 }, {  "name": "Danilo Alcazar" } ] }
+{  "cid": 773,  "name": "Leatrice Zysett",  "interests": [  ],  "children": [ {  "name": "Bee Zysett",  "age": 30 }, {  "name": "Russ Zysett",  "age": 11 }, {  "name": "Jeff Zysett",  "age": 39 }, {  "name": "Herman Zysett",  "age": 27 } ] }
+{  "cid": 0,  "name": "Antonia Streva",  "age": 39,  "address": {  "number": 872,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Bass", "Tennis", "Bass", "Cooking" ],  "children": [ {  "name": "Jonathan Streva",  "age": 25 }, {  "name": "Gricelda Streva",  "age": 24 } ] }
+{  "cid": 314,  "name": "Gwendolyn Abeb",  "age": 85,  "address": {  "number": 3977,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Basketball", "Music", "Squash", "Walking" ],  "children": [ {  "name": "Aurelia Abeb",  "age": 14 }, {  "name": "Young Abeb" }, {  "name": "Shay Abeb" }, {  "name": "Lavina Abeb",  "age": 15 } ] }
+{  "cid": 468,  "name": "Raeann Conry",  "age": 68,  "address": {  "number": 4312,  "street": "Cedar St.",  "city": "Seattle" },  "interests": [ "Squash" ],  "children": [ {  "name": "Ellena Conry",  "age": 36 }, {  "name": "Lynwood Conry",  "age": 13 }, {  "name": "Coreen Conry",  "age": 23 } ] }
+{  "cid": 231,  "name": "Arianne Wedlow",  "age": 68,  "address": {  "number": 9663,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Birdie Wedlow",  "age": 32 }, {  "name": "Pearle Wedlow",  "age": 13 }, {  "name": "Jordon Wedlow",  "age": 43 }, {  "name": "Katherin Wedlow",  "age": 18 } ] }
+{  "cid": 62,  "name": "Kiley Machnik",  "interests": [  ],  "children": [  ] }
+{  "cid": 97,  "name": "Mui Slosek",  "interests": [  ],  "children": [ {  "name": "Susanne Slosek",  "age": 29 }, {  "name": "Colleen Slosek" } ] }
+{  "cid": 357,  "name": "Dario Lobach",  "interests": [  ],  "children": [ {  "name": "Kendall Lobach",  "age": 37 } ] }
+{  "cid": 845,  "name": "Burt Earp",  "age": 21,  "address": {  "number": 7626,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Computers" ],  "children": [ {  "name": "Denny Earp" }, {  "name": "Blaine Earp" }, {  "name": "Wilson Earp",  "age": 10 }, {  "name": "Joan Earp" } ] }
+{  "cid": 835,  "name": "Raphael Marzili",  "interests": [ "Music" ],  "children": [ {  "name": "Angelic Marzili",  "age": 38 } ] }
+{  "cid": 811,  "name": "Marti Whitmyre",  "interests": [ "Music", "Walking" ],  "children": [  ] }
+{  "cid": 383,  "name": "Marty Castine",  "interests": [  ],  "children": [ {  "name": "Nakisha Castine",  "age": 40 }, {  "name": "Mina Castine" }, {  "name": "Katrice Castine",  "age": 56 }, {  "name": "Reuben Castine" } ] }
+{  "cid": 309,  "name": "Lise Baiz",  "age": 46,  "address": {  "number": 352,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Bass", "Squash" ],  "children": [ {  "name": "Alisa Baiz",  "age": 18 }, {  "name": "Elidia Baiz",  "age": 28 }, {  "name": "Ray Baiz",  "age": 19 } ] }
+{  "cid": 295,  "name": "Guillermina Florek",  "age": 61,  "address": {  "number": 3704,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Movies", "Books" ],  "children": [ {  "name": "Donnie Florek" }, {  "name": "Jeannetta Florek",  "age": 38 }, {  "name": "Leigha Florek" }, {  "name": "Zenobia Florek",  "age": 10 } ] }
+{  "cid": 273,  "name": "Corrinne Seaquist",  "age": 24,  "address": {  "number": 6712,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Puzzles", "Coffee", "Wine" ],  "children": [ {  "name": "Mignon Seaquist" }, {  "name": "Leo Seaquist" } ] }
+{  "cid": 718,  "name": "Tandy Trick",  "age": 18,  "address": {  "number": 1215,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Fishing", "Fishing" ],  "children": [ {  "name": "Edyth Trick" }, {  "name": "Jimmy Trick" }, {  "name": "Jacquline Trick" }, {  "name": "Tyler Trick" } ] }
+{  "cid": 751,  "name": "Lydia Iannelli",  "interests": [  ],  "children": [ {  "name": "Teri Iannelli",  "age": 36 } ] }
+{  "cid": 18,  "name": "Dewayne Ardan",  "age": 32,  "address": {  "number": 8229,  "street": "Hill St.",  "city": "San Jose" },  "interests": [ "Wine", "Walking", "Bass" ],  "children": [ {  "name": "Wen Ardan" }, {  "name": "Sachiko Ardan",  "age": 11 }, {  "name": "Francis Ardan",  "age": 20 } ] }
+{  "cid": 113,  "name": "Alayna Daleske",  "age": 87,  "address": {  "number": 4739,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Hester Daleske" }, {  "name": "Magnolia Daleske" }, {  "name": "Bettye Daleske",  "age": 32 } ] }
+{  "cid": 910,  "name": "Everette Moe",  "interests": [  ],  "children": [ {  "name": "Berna Moe",  "age": 56 }, {  "name": "Harold Moe",  "age": 28 }, {  "name": "See Moe",  "age": 20 } ] }
+{  "cid": 355,  "name": "Elois Leckband",  "interests": [ "Skiing", "Wine" ],  "children": [  ] }
+{  "cid": 347,  "name": "Patrick Feighan",  "age": 34,  "address": {  "number": 7613,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Puzzles", "Books" ],  "children": [ {  "name": "Madaline Feighan" } ] }
+{  "cid": 213,  "name": "Micheal Evoy",  "age": 68,  "address": {  "number": 1219,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Skiing", "Computers", "Books", "Puzzles" ],  "children": [ {  "name": "Socorro Evoy" }, {  "name": "Gertude Evoy",  "age": 36 }, {  "name": "Araceli Evoy" }, {  "name": "Yasmin Evoy" } ] }
+{  "cid": 699,  "name": "Lyda Golomb",  "age": 46,  "address": {  "number": 5049,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Fishing", "Basketball" ],  "children": [ {  "name": "Shonta Golomb" }, {  "name": "Lynwood Golomb",  "age": 26 }, {  "name": "Leonila Golomb",  "age": 30 }, {  "name": "Alejandrina Golomb" } ] }
+{  "cid": 961,  "name": "Mirian Herpolsheimer",  "interests": [ "Music", "Fishing", "Computers" ],  "children": [ {  "name": "Larissa Herpolsheimer",  "age": 41 }, {  "name": "Markus Herpolsheimer" }, {  "name": "Natacha Herpolsheimer" } ] }
+{  "cid": 189,  "name": "Shyla Saathoff",  "age": 85,  "address": {  "number": 9679,  "street": "Main St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Johanne Saathoff",  "age": 61 }, {  "name": "Janett Saathoff" } ] }
+{  "cid": 190,  "name": "Kristel Axelson",  "interests": [ "Movies", "Books" ],  "children": [ {  "name": "Deja Axelson" } ] }
+{  "cid": 419,  "name": "Hector Brisbone",  "interests": [ "Databases", "Books", "Walking", "Databases" ],  "children": [ {  "name": "Frederick Brisbone",  "age": 17 } ] }
+{  "cid": 563,  "name": "Deirdre Landero",  "interests": [ "Books", "Fishing", "Video Games" ],  "children": [ {  "name": "Norman Landero",  "age": 59 }, {  "name": "Jennine Landero",  "age": 45 }, {  "name": "Rutha Landero",  "age": 19 }, {  "name": "Jackie Landero",  "age": 29 } ] }
+{  "cid": 593,  "name": "Danial Pittillo",  "age": 87,  "address": {  "number": 815,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Tennis", "Base Jumping" ],  "children": [ {  "name": "Neva Pittillo",  "age": 28 }, {  "name": "Brooks Pittillo" }, {  "name": "Randell Pittillo",  "age": 52 }, {  "name": "Allyson Pittillo",  "age": 51 } ] }
+{  "cid": 37,  "name": "Eliana Vient",  "age": 89,  "address": {  "number": 4882,  "street": "View St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Dario Vient",  "age": 43 } ] }
+{  "cid": 703,  "name": "Susanne Pettey",  "interests": [ "Squash", "Basketball", "Skiing" ],  "children": [ {  "name": "Nancey Pettey",  "age": 35 }, {  "name": "Lawana Pettey" }, {  "name": "Percy Pettey",  "age": 25 } ] }
+{  "cid": 765,  "name": "Mila Barman",  "interests": [ "Coffee", "Puzzles", "Bass", "Wine" ],  "children": [ {  "name": "Lucienne Barman" }, {  "name": "Marina Barman" } ] }
+{  "cid": 432,  "name": "Judi Vinet",  "age": 85,  "address": {  "number": 7304,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [ "Wine" ],  "children": [ {  "name": "Golden Vinet",  "age": 20 }, {  "name": "Maragret Vinet" }, {  "name": "Keshia Vinet",  "age": 10 }, {  "name": "Gary Vinet",  "age": 73 } ] }
+{  "cid": 61,  "name": "Linsey Mose",  "age": 17,  "address": {  "number": 9198,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Tilda Mose" }, {  "name": "Lillie Mose" }, {  "name": "Robyn Mose" } ] }
+{  "cid": 924,  "name": "Kathleen Lash",  "interests": [  ],  "children": [ {  "name": "Clementina Lash",  "age": 58 }, {  "name": "Zula Lash" }, {  "name": "Mellissa Lash",  "age": 54 } ] }
+{  "cid": 820,  "name": "Lacy Caudill",  "age": 22,  "address": {  "number": 8679,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Wine" ],  "children": [ {  "name": "Sybil Caudill" } ] }
+{  "cid": 590,  "name": "Joye Burton",  "interests": [ "Bass", "Base Jumping" ],  "children": [ {  "name": "Noemi Burton",  "age": 19 }, {  "name": "Hulda Burton" }, {  "name": "Cleotilde Burton" }, {  "name": "Dara Burton" } ] }
+{  "cid": 969,  "name": "Laurinda Gnerre",  "age": 42,  "address": {  "number": 2284,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Walking", "Bass", "Fishing", "Video Games" ],  "children": [ {  "name": "Veronica Gnerre" } ] }
+{  "cid": 681,  "name": "Iliana Nagele",  "interests": [ "Movies", "Running" ],  "children": [ {  "name": "Sunny Nagele",  "age": 55 }, {  "name": "Waltraud Nagele",  "age": 39 }, {  "name": "Darron Nagele" } ] }
+{  "cid": 946,  "name": "Taylor Parrigan",  "interests": [ "Music" ],  "children": [ {  "name": "Salome Parrigan",  "age": 50 }, {  "name": "Gary Parrigan",  "age": 25 }, {  "name": "Harold Parrigan" } ] }
+{  "cid": 170,  "name": "Dana Lese",  "age": 38,  "address": {  "number": 575,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Walking", "Coffee" ],  "children": [ {  "name": "Yasmine Lese",  "age": 24 }, {  "name": "Ezekiel Lese",  "age": 20 }, {  "name": "Ammie Lese",  "age": 27 }, {  "name": "Robert Lese",  "age": 15 } ] }
+{  "cid": 435,  "name": "Britni Kazemi",  "age": 69,  "address": {  "number": 7868,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Databases", "Music", "Wine" ],  "children": [  ] }
+{  "cid": 900,  "name": "Rose Mascetti",  "age": 73,  "address": {  "number": 5308,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Databases", "Coffee", "Computers", "Books" ],  "children": [  ] }
+{  "cid": 17,  "name": "Ingeborg Monkhouse",  "interests": [ "Base Jumping", "Cigars", "Movies" ],  "children": [  ] }
+{  "cid": 887,  "name": "Jermaine Folz",  "age": 35,  "address": {  "number": 8487,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Computers", "Puzzles", "Cooking" ],  "children": [ {  "name": "Sharice Folz" } ] }
+{  "cid": 150,  "name": "Jesus Vanleeuwen",  "interests": [  ],  "children": [ {  "name": "Sueann Vanleeuwen",  "age": 47 }, {  "name": "Refugia Vanleeuwen" }, {  "name": "Taisha Vanleeuwen" }, {  "name": "Nathaniel Vanleeuwen" } ] }
+{  "cid": 267,  "name": "Renay Huddelston",  "age": 68,  "address": {  "number": 1939,  "street": "Washington St.",  "city": "Mountain View" },  "interests": [ "Wine", "Base Jumping" ],  "children": [ {  "name": "Colene Huddelston" } ] }
+{  "cid": 652,  "name": "Armida Moeuy",  "age": 34,  "address": {  "number": 8306,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Running" ],  "children": [ {  "name": "Sunshine Moeuy" }, {  "name": "Leta Moeuy",  "age": 19 } ] }
+{  "cid": 747,  "name": "Gil Dunnaway",  "age": 65,  "address": {  "number": 3022,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Running", "Squash" ],  "children": [ {  "name": "Laurice Dunnaway" } ] }
+{  "cid": 689,  "name": "Camila Cho",  "age": 70,  "address": {  "number": 7731,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Video Games", "Cigars" ],  "children": [ {  "name": "Myrtie Cho",  "age": 57 }, {  "name": "Merideth Cho",  "age": 45 }, {  "name": "Meta Cho",  "age": 20 } ] }
+{  "cid": 426,  "name": "Agripina Philley",  "age": 79,  "address": {  "number": 1533,  "street": "Main St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Georgianne Philley" }, {  "name": "Neville Philley" }, {  "name": "Brande Philley",  "age": 42 }, {  "name": "Tanisha Philley" } ] }
+{  "cid": 330,  "name": "Noma Tollefsen",  "interests": [  ],  "children": [ {  "name": "Melody Tollefsen",  "age": 45 }, {  "name": "Caridad Tollefsen",  "age": 15 } ] }
+{  "cid": 767,  "name": "Wendi Hoecker",  "interests": [  ],  "children": [  ] }
+{  "cid": 673,  "name": "Willard Matuszek",  "interests": [ "Running" ],  "children": [ {  "name": "Kyong Matuszek" }, {  "name": "Delena Matuszek" }, {  "name": "Toney Matuszek" }, {  "name": "Shayne Matuszek",  "age": 19 } ] }
+{  "cid": 948,  "name": "Thad Scialpi",  "age": 22,  "address": {  "number": 8731,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Base Jumping", "Tennis", "Wine" ],  "children": [ {  "name": "Harlan Scialpi",  "age": 10 }, {  "name": "Lucile Scialpi",  "age": 11 }, {  "name": "Audria Scialpi" } ] }
+{  "cid": 684,  "name": "Elmo Ballenger",  "age": 69,  "address": {  "number": 2657,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Wine" ],  "children": [ {  "name": "Sheena Ballenger",  "age": 53 }, {  "name": "Abby Ballenger" }, {  "name": "Markus Ballenger" } ] }
+{  "cid": 311,  "name": "Ria Haflett",  "age": 14,  "address": {  "number": 9513,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Walking" ],  "children": [ {  "name": "Jimmie Haflett" }, {  "name": "Dario Haflett" }, {  "name": "Robbyn Haflett" } ] }
+{  "cid": 181,  "name": "Toni Sanghani",  "interests": [  ],  "children": [ {  "name": "Hollie Sanghani",  "age": 29 } ] }
+{  "cid": 600,  "name": "Cordell Sherburn",  "interests": [ "Squash", "Skiing", "Skiing" ],  "children": [ {  "name": "Shenna Sherburn",  "age": 22 }, {  "name": "Minna Sherburn",  "age": 10 }, {  "name": "Tari Sherburn" } ] }
+{  "cid": 753,  "name": "Maris Bannett",  "interests": [ "Fishing", "Cigars", "Running" ],  "children": [ {  "name": "Libbie Bannett",  "age": 11 }, {  "name": "Francina Bannett",  "age": 21 }, {  "name": "Tuyet Bannett" }, {  "name": "Zona Bannett",  "age": 32 } ] }
+{  "cid": 132,  "name": "Cindi Turntine",  "age": 64,  "address": {  "number": 9432,  "street": "Park St.",  "city": "Portland" },  "interests": [ "Computers", "Wine" ],  "children": [ {  "name": "Howard Turntine" } ] }
+{  "cid": 70,  "name": "Mellisa Lek",  "age": 62,  "address": {  "number": 4281,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Bass", "Running", "Databases" ],  "children": [  ] }
+{  "cid": 858,  "name": "Maricruz Dittberner",  "interests": [ "Tennis", "Wine", "Cigars", "Video Games" ],  "children": [  ] }
+{  "cid": 777,  "name": "Coralee Vaugh",  "age": 51,  "address": {  "number": 4130,  "street": "Hill St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Dean Vaugh",  "age": 31 }, {  "name": "Stanton Vaugh",  "age": 39 }, {  "name": "Marti Vaugh",  "age": 33 }, {  "name": "Eden Vaugh",  "age": 27 } ] }
+{  "cid": 2,  "name": "Elin Debell",  "age": 82,  "address": {  "number": 5649,  "street": "Hill St.",  "city": "Portland" },  "interests": [ "Bass", "Wine" ],  "children": [ {  "name": "Elvina Debell" }, {  "name": "Renaldo Debell",  "age": 51 }, {  "name": "Divina Debell",  "age": 57 } ] }
+{  "cid": 98,  "name": "Casimira Hilbrand",  "age": 72,  "address": {  "number": 9693,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Gudrun Hilbrand",  "age": 18 }, {  "name": "Dacia Hilbrand",  "age": 26 }, {  "name": "Kortney Hilbrand" }, {  "name": "Luci Hilbrand" } ] }
+{  "cid": 670,  "name": "Angelo Kellar",  "age": 22,  "address": {  "number": 3178,  "street": "View St.",  "city": "Seattle" },  "interests": [ "Wine", "Music", "Fishing" ],  "children": [ {  "name": "Zula Kellar" }, {  "name": "Brittaney Kellar",  "age": 10 }, {  "name": "Fredia Kellar" } ] }
+{  "cid": 981,  "name": "Lilliam Lopus",  "interests": [  ],  "children": [ {  "name": "Tracey Lopus" } ] }
+{  "cid": 669,  "name": "Royal Abke",  "age": 60,  "address": {  "number": 1675,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Leandra Abke",  "age": 25 }, {  "name": "Shawanna Abke" } ] }
+{  "cid": 146,  "name": "Glennis Vanruiten",  "age": 14,  "address": {  "number": 8272,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Squash", "Databases" ],  "children": [ {  "name": "Joanie Vanruiten" }, {  "name": "Long Vanruiten" }, {  "name": "Abdul Vanruiten" } ] }
+{  "cid": 431,  "name": "Estela Tolbent",  "age": 27,  "address": {  "number": 7186,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Databases" ],  "children": [ {  "name": "Joie Tolbent" }, {  "name": "Angila Tolbent" }, {  "name": "Anastasia Tolbent",  "age": 14 } ] }
+{  "cid": 199,  "name": "Rogelio Hannan",  "interests": [  ],  "children": [ {  "name": "Blanche Hannan" }, {  "name": "Elvira Hannan" }, {  "name": "Cinderella Hannan" } ] }
+{  "cid": 248,  "name": "Elsy Slack",  "interests": [ "Cooking", "Squash", "Cooking", "Coffee" ],  "children": [  ] }
+{  "cid": 143,  "name": "Katelynn Kanzler",  "age": 80,  "address": {  "number": 9453,  "street": "Washington St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Carl Kanzler" } ] }
+{  "cid": 487,  "name": "Zenia Virgilio",  "age": 46,  "address": {  "number": 584,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Walking", "Squash", "Wine" ],  "children": [ {  "name": "Quintin Virgilio" }, {  "name": "Edith Virgilio" }, {  "name": "Nicolle Virgilio",  "age": 33 } ] }
+{  "cid": 285,  "name": "Edgar Farlin",  "age": 75,  "address": {  "number": 3833,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Coffee", "Databases" ],  "children": [ {  "name": "Stefanie Farlin",  "age": 60 }, {  "name": "Catina Farlin" }, {  "name": "Lizzie Farlin" }, {  "name": "Beau Farlin" } ] }
+{  "cid": 161,  "name": "Lucia Tata",  "age": 85,  "address": {  "number": 8058,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Basketball", "Bass" ],  "children": [ {  "name": "Jenifer Tata",  "age": 70 }, {  "name": "Erna Tata" } ] }
+{  "cid": 226,  "name": "Debrah Deppert",  "age": 62,  "address": {  "number": 7699,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Coffee" ],  "children": [ {  "name": "Tonie Deppert",  "age": 25 }, {  "name": "Neil Deppert" } ] }
+{  "cid": 216,  "name": "Odilia Lampson",  "interests": [ "Wine", "Databases", "Basketball" ],  "children": [ {  "name": "Callie Lampson" } ] }
+{  "cid": 40,  "name": "Fidelia Connie",  "age": 81,  "address": {  "number": 2298,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Basketball", "Base Jumping", "Walking", "Skiing" ],  "children": [ {  "name": "Elfreda Connie",  "age": 43 }, {  "name": "Josephine Connie",  "age": 30 }, {  "name": "Lucas Connie" } ] }
+{  "cid": 209,  "name": "Donnette Kreb",  "interests": [ "Puzzles", "Cooking", "Tennis", "Tennis" ],  "children": [ {  "name": "Hobert Kreb" }, {  "name": "Ray Kreb" }, {  "name": "Carmel Kreb",  "age": 56 }, {  "name": "Lise Kreb" } ] }
+{  "cid": 766,  "name": "Tosha Loffredo",  "age": 64,  "address": {  "number": 5580,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Walking" ],  "children": [ {  "name": "Hellen Loffredo",  "age": 32 } ] }
+{  "cid": 656,  "name": "Rufus Peaden",  "interests": [  ],  "children": [ {  "name": "Nathanael Peaden",  "age": 57 }, {  "name": "Jamaal Peaden" } ] }
+{  "cid": 140,  "name": "Maryland Neas",  "interests": [  ],  "children": [ {  "name": "Brunilda Neas",  "age": 28 } ] }
+{  "cid": 711,  "name": "Agnes Andreas",  "interests": [ "Books" ],  "children": [ {  "name": "Fairy Andreas" }, {  "name": "Wilhemina Andreas" }, {  "name": "Parthenia Andreas",  "age": 53 }, {  "name": "Maye Andreas" } ] }
+{  "cid": 692,  "name": "Nida Picknell",  "age": 24,  "address": {  "number": 9053,  "street": "Park St.",  "city": "Mountain View" },  "interests": [ "Skiing", "Music", "Wine", "Base Jumping" ],  "children": [ {  "name": "Caroyln Picknell" }, {  "name": "Micheline Picknell",  "age": 10 } ] }
+{  "cid": 229,  "name": "Raymundo Meurin",  "interests": [ "Bass", "Basketball", "Databases" ],  "children": [ {  "name": "Mariela Meurin" } ] }
+{  "cid": 594,  "name": "Zenia Corban",  "interests": [ "Puzzles", "Computers", "Video Games", "Cigars" ],  "children": [ {  "name": "Arielle Corban" }, {  "name": "Arthur Corban",  "age": 15 }, {  "name": "Taneka Corban",  "age": 51 }, {  "name": "Claire Corban" } ] }
+{  "cid": 927,  "name": "Lillia Hartlein",  "age": 55,  "address": {  "number": 5856,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Base Jumping", "Coffee", "Cigars" ],  "children": [ {  "name": "Nicky Hartlein" }, {  "name": "Cassaundra Hartlein",  "age": 10 }, {  "name": "Micheline Hartlein",  "age": 26 }, {  "name": "Anton Hartlein",  "age": 32 } ] }
+{  "cid": 906,  "name": "Marlena Reichenberg",  "interests": [ "Tennis", "Bass", "Cigars", "Databases" ],  "children": [ {  "name": "Annemarie Reichenberg",  "age": 54 }, {  "name": "Sunshine Reichenberg" }, {  "name": "Dion Reichenberg",  "age": 49 }, {  "name": "Brenda Reichenberg",  "age": 43 } ] }
+{  "cid": 350,  "name": "Lashandra Noto",  "interests": [ "Movies", "Bass", "Coffee", "Squash" ],  "children": [ {  "name": "Lise Noto" }, {  "name": "Kimbra Noto",  "age": 36 }, {  "name": "Samual Noto" } ] }
+{  "cid": 102,  "name": "Melany Rotan",  "interests": [  ],  "children": [ {  "name": "Christiana Rotan",  "age": 21 }, {  "name": "Lavina Rotan" }, {  "name": "Billy Rotan" } ] }
+{  "cid": 804,  "name": "Joaquina Burlin",  "age": 77,  "address": {  "number": 5479,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Running", "Wine", "Running" ],  "children": [  ] }
+{  "cid": 241,  "name": "Lesha Ambrosia",  "age": 49,  "address": {  "number": 6133,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Base Jumping", "Running" ],  "children": [ {  "name": "Venice Ambrosia" } ] }
+{  "cid": 3,  "name": "Phung Wheetley",  "age": 12,  "address": {  "number": 5549,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Wine" ],  "children": [ {  "name": "Raelene Wheetley" }, {  "name": "Dudley Wheetley" } ] }
+{  "cid": 480,  "name": "Nigel Pitmon",  "interests": [ "Puzzles", "Books" ],  "children": [ {  "name": "Janene Pitmon" }, {  "name": "Louie Pitmon",  "age": 19 }, {  "name": "Genny Pitmon",  "age": 24 }, {  "name": "Robby Pitmon",  "age": 55 } ] }
+{  "cid": 795,  "name": "Sharilyn Branstad",  "interests": [ "Databases", "Music" ],  "children": [ {  "name": "Ashlee Branstad",  "age": 24 }, {  "name": "Bobbye Branstad",  "age": 26 }, {  "name": "Natalya Branstad" }, {  "name": "Edith Branstad" } ] }
+{  "cid": 548,  "name": "Elvia Duchesney",  "interests": [ "Basketball" ],  "children": [ {  "name": "Arcelia Duchesney",  "age": 22 } ] }
+{  "cid": 317,  "name": "Zona Caffarel",  "age": 52,  "address": {  "number": 9419,  "street": "Cedar St.",  "city": "Seattle" },  "interests": [ "Tennis", "Coffee" ],  "children": [ {  "name": "Cortez Caffarel" } ] }
+{  "cid": 77,  "name": "Chantal Parriera",  "age": 78,  "address": {  "number": 5967,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Squash", "Movies", "Coffee" ],  "children": [  ] }
+{  "cid": 970,  "name": "Pia Sudderth",  "interests": [ "Databases" ],  "children": [ {  "name": "Ernestina Sudderth",  "age": 15 }, {  "name": "Larue Sudderth",  "age": 46 }, {  "name": "Toshia Sudderth",  "age": 27 } ] }
+{  "cid": 68,  "name": "Chery Basini",  "interests": [ "Video Games" ],  "children": [  ] }
+{  "cid": 283,  "name": "Pilar Fritts",  "interests": [ "Tennis" ],  "children": [ {  "name": "Jeneva Fritts" }, {  "name": "Gail Fritts",  "age": 25 } ] }
+{  "cid": 568,  "name": "Marilou Veeder",  "age": 26,  "address": {  "number": 5722,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Coffee", "Databases", "Books", "Skiing" ],  "children": [  ] }
+{  "cid": 569,  "name": "Beata Diles",  "age": 88,  "address": {  "number": 2198,  "street": "Park St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Myrtice Diles",  "age": 46 }, {  "name": "Stella Diles" }, {  "name": "Rowena Diles",  "age": 26 } ] }
+{  "cid": 792,  "name": "Cassandra Servey",  "interests": [ "Databases", "Music", "Books", "Cigars" ],  "children": [  ] }
+{  "cid": 482,  "name": "Samantha Stonis",  "interests": [ "Databases" ],  "children": [  ] }
+{  "cid": 663,  "name": "Riley Noteboom",  "interests": [  ],  "children": [ {  "name": "Marvis Noteboom",  "age": 57 } ] }
+{  "cid": 951,  "name": "Janine Martorano",  "age": 65,  "address": {  "number": 6420,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Books", "Music" ],  "children": [ {  "name": "Idella Martorano" } ] }
+{  "cid": 29,  "name": "Ruthanne Tavana",  "interests": [ "Movies" ],  "children": [  ] }
+{  "cid": 610,  "name": "Elinor Notoma",  "age": 66,  "address": {  "number": 6763,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Coffee" ],  "children": [ {  "name": "Dennis Notoma" }, {  "name": "Carol Notoma",  "age": 21 } ] }
+{  "cid": 122,  "name": "Wei Perpall",  "age": 43,  "address": {  "number": 916,  "street": "Washington St.",  "city": "Los Angeles" },  "interests": [ "Bass" ],  "children": [ {  "name": "Mitchel Perpall",  "age": 11 }, {  "name": "Aliza Perpall" }, {  "name": "King Perpall" }, {  "name": "Santana Perpall",  "age": 22 } ] }
+{  "cid": 27,  "name": "Hollie Hyun",  "interests": [ "Skiing", "Walking" ],  "children": [ {  "name": "Morton Hyun" }, {  "name": "Farrah Hyun",  "age": 40 }, {  "name": "Ali Hyun" } ] }
+{  "cid": 356,  "name": "Pearlene Sakumoto",  "age": 22,  "address": {  "number": 5895,  "street": "7th St.",  "city": "San Jose" },  "interests": [ "Computers", "Bass", "Base Jumping", "Coffee" ],  "children": [  ] }
+{  "cid": 234,  "name": "Ilana Brothern",  "age": 36,  "address": {  "number": 4850,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Puzzles", "Walking", "Fishing" ],  "children": [ {  "name": "Shayne Brothern" }, {  "name": "Phillis Brothern" } ] }
+{  "cid": 506,  "name": "Jonna Kolbusz",  "interests": [  ],  "children": [ {  "name": "Debrah Kolbusz" }, {  "name": "Hugh Kolbusz" } ] }
+{  "cid": 315,  "name": "Kallie Eiselein",  "interests": [ "Computers", "Tennis" ],  "children": [  ] }
+{  "cid": 633,  "name": "Shalon Grauberger",  "age": 34,  "address": {  "number": 765,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Music", "Base Jumping", "Tennis" ],  "children": [ {  "name": "Kris Grauberger",  "age": 14 }, {  "name": "Stuart Grauberger",  "age": 12 }, {  "name": "Billy Grauberger" } ] }
+{  "cid": 291,  "name": "Svetlana Moone",  "interests": [ "Skiing", "Computers", "Running", "Walking" ],  "children": [ {  "name": "Emelina Moone" }, {  "name": "Candi Moone" } ] }
+{  "cid": 427,  "name": "Janay Presutti",  "interests": [ "Walking" ],  "children": [ {  "name": "Julietta Presutti" } ] }
+{  "cid": 196,  "name": "Darwin Seekell",  "interests": [ "Skiing" ],  "children": [ {  "name": "Kathryne Seekell" }, {  "name": "Marlon Seekell" }, {  "name": "Shiloh Seekell",  "age": 51 } ] }
+{  "cid": 220,  "name": "Soila Hannemann",  "interests": [ "Wine", "Puzzles", "Basketball" ],  "children": [ {  "name": "Piper Hannemann",  "age": 44 } ] }
+{  "cid": 508,  "name": "Tiffany Kimmey",  "age": 64,  "address": {  "number": 8625,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Bass", "Walking" ],  "children": [  ] }
+{  "cid": 252,  "name": "Almeda Charity",  "age": 19,  "address": {  "number": 5553,  "street": "View St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Rosia Charity" } ] }
+{  "cid": 21,  "name": "Gidget Galamay",  "age": 34,  "address": {  "number": 2854,  "street": "Washington St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Brunilda Galamay" }, {  "name": "Bethel Galamay" }, {  "name": "Devon Galamay",  "age": 17 } ] }
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+{  "cid": 550,  "name": "Aleisha Brehon",  "age": 61,  "address": {  "number": 7835,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Squash" ],  "children": [ {  "name": "Vito Brehon" }, {  "name": "Matthew Brehon",  "age": 32 } ] }
+{  "cid": 498,  "name": "Arleen Sultzer",  "interests": [ "Coffee", "Movies", "Skiing" ],  "children": [ {  "name": "Norine Sultzer",  "age": 29 } ] }
+{  "cid": 780,  "name": "Penny Poortinga",  "interests": [  ],  "children": [ {  "name": "Estella Poortinga" } ] }
+{  "cid": 613,  "name": "Shanelle Leader",  "interests": [ "Databases", "Base Jumping", "Wine", "Fishing" ],  "children": [ {  "name": "Florencia Leader" }, {  "name": "Herbert Leader",  "age": 11 }, {  "name": "Jeanna Leader" } ] }
+{  "cid": 503,  "name": "Phyliss Cassani",  "interests": [ "Squash", "Tennis" ],  "children": [ {  "name": "Rolando Cassani",  "age": 44 }, {  "name": "Rikki Cassani",  "age": 18 }, {  "name": "Monty Cassani",  "age": 40 } ] }
+{  "cid": 294,  "name": "Foster Salimi",  "age": 79,  "address": {  "number": 8439,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Pei Salimi" } ] }
+{  "cid": 708,  "name": "Elease Holtmann",  "age": 75,  "address": {  "number": 5295,  "street": "Washington St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Leonardo Holtmann" }, {  "name": "Katharine Holtmann" }, {  "name": "Chung Holtmann",  "age": 20 }, {  "name": "Teodoro Holtmann",  "age": 19 } ] }
+{  "cid": 547,  "name": "Daryl Dambra",  "interests": [  ],  "children": [ {  "name": "Jacquline Dambra" }, {  "name": "Seymour Dambra" } ] }
+{  "cid": 108,  "name": "Artie Boclair",  "age": 55,  "address": {  "number": 8555,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [ "Skiing", "Squash", "Skiing", "Fishing" ],  "children": [  ] }
+{  "cid": 509,  "name": "Alvaro Johnke",  "interests": [ "Computers" ],  "children": [ {  "name": "Allison Johnke" }, {  "name": "Ellan Johnke" } ] }
+{  "cid": 378,  "name": "Melany Matias",  "age": 10,  "address": {  "number": 8838,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Coffee", "Tennis", "Bass" ],  "children": [ {  "name": "Earnestine Matias" }, {  "name": "Lore Matias" } ] }
+{  "cid": 69,  "name": "Many Yeargain",  "interests": [ "Coffee" ],  "children": [ {  "name": "Brande Yeargain" }, {  "name": "Tawna Yeargain" }, {  "name": "Doris Yeargain" }, {  "name": "Valeria Yeargain",  "age": 51 } ] }
+{  "cid": 912,  "name": "Alessandra Kaskey",  "age": 52,  "address": {  "number": 6906,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Skiing", "Walking", "Basketball" ],  "children": [ {  "name": "Mack Kaskey" } ] }
+{  "cid": 201,  "name": "Tiny Hoysradt",  "interests": [  ],  "children": [ {  "name": "Simon Hoysradt",  "age": 24 } ] }
+{  "cid": 124,  "name": "Kelley Dressman",  "interests": [ "Squash", "Databases", "Fishing" ],  "children": [ {  "name": "Evie Dressman" }, {  "name": "Fredericka Dressman" }, {  "name": "Leigh Dressman" }, {  "name": "Luna Dressman",  "age": 29 } ] }
+{  "cid": 583,  "name": "Bev Yerena",  "interests": [ "Puzzles", "Wine" ],  "children": [ {  "name": "Larhonda Yerena",  "age": 45 }, {  "name": "Josefina Yerena" }, {  "name": "Sydney Yerena",  "age": 42 } ] }
+{  "cid": 960,  "name": "Lenore Limardi",  "interests": [ "Music" ],  "children": [ {  "name": "Kris Limardi",  "age": 12 } ] }
+{  "cid": 32,  "name": "Tia Berkley",  "age": 30,  "address": {  "number": 4507,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Base Jumping", "Music" ],  "children": [ {  "name": "Carmon Berkley" }, {  "name": "Kristina Berkley" }, {  "name": "Cristi Berkley",  "age": 19 } ] }
+{  "cid": 365,  "name": "Aiko Curra",  "interests": [ "Fishing", "Fishing", "Bass", "Cooking" ],  "children": [ {  "name": "Janelle Curra" } ] }
+{  "cid": 384,  "name": "Perla Giarrano",  "age": 88,  "address": {  "number": 4523,  "street": "Cedar St.",  "city": "Seattle" },  "interests": [ "Base Jumping", "Cooking", "Tennis", "Cigars" ],  "children": [ {  "name": "Melania Giarrano",  "age": 71 }, {  "name": "Evalyn Giarrano",  "age": 67 }, {  "name": "Kathrine Giarrano" }, {  "name": "Lizeth Giarrano" } ] }
+{  "cid": 242,  "name": "Jerold Shabot",  "interests": [ "Fishing", "Walking", "Walking", "Puzzles" ],  "children": [ {  "name": "Marie Shabot",  "age": 26 } ] }
+{  "cid": 941,  "name": "Jamey Jakobson",  "interests": [ "Books", "Cooking", "Video Games" ],  "children": [ {  "name": "Elmer Jakobson",  "age": 14 }, {  "name": "Minh Jakobson",  "age": 30 } ] }
+{  "cid": 218,  "name": "Clarinda Stagliano",  "age": 76,  "address": {  "number": 3258,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Video Games", "Cigars" ],  "children": [  ] }
+{  "cid": 701,  "name": "Ahmed Schnider",  "age": 61,  "address": {  "number": 2619,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Cooking", "Bass", "Movies", "Video Games" ],  "children": [ {  "name": "Marcel Schnider",  "age": 13 }, {  "name": "Micaela Schnider",  "age": 28 }, {  "name": "Roderick Schnider" } ] }
+{  "cid": 148,  "name": "Coy Dulay",  "age": 66,  "address": {  "number": 9793,  "street": "Hill St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Emile Dulay" }, {  "name": "Letitia Dulay",  "age": 38 } ] }
+{  "cid": 612,  "name": "Keneth Ganie",  "age": 57,  "address": {  "number": 7712,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Cigars", "Base Jumping" ],  "children": [ {  "name": "Connie Ganie" }, {  "name": "Kamala Ganie",  "age": 25 }, {  "name": "Beulah Ganie",  "age": 15 } ] }
+{  "cid": 514,  "name": "Raleigh Belling",  "age": 56,  "address": {  "number": 7408,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Running" ],  "children": [  ] }
+{  "cid": 145,  "name": "Carey Bousman",  "age": 61,  "address": {  "number": 16,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Lynda Bousman",  "age": 32 }, {  "name": "Evalyn Bousman",  "age": 17 } ] }
+{  "cid": 883,  "name": "Odilia Bugtong",  "interests": [  ],  "children": [ {  "name": "Mark Bugtong",  "age": 15 }, {  "name": "Paula Bugtong" }, {  "name": "Jenee Bugtong",  "age": 17 }, {  "name": "Lilian Bugtong",  "age": 44 } ] }
+{  "cid": 957,  "name": "Lucius Schurr",  "age": 75,  "address": {  "number": 3918,  "street": "Main St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Willetta Schurr",  "age": 22 }, {  "name": "Andre Schurr" }, {  "name": "Merrilee Schurr",  "age": 32 } ] }
+{  "cid": 444,  "name": "Demetra Sava",  "interests": [ "Music", "Fishing", "Databases", "Wine" ],  "children": [ {  "name": "Fidel Sava",  "age": 16 } ] }
+{  "cid": 543,  "name": "Pearl Nollette",  "interests": [ "Base Jumping", "Running" ],  "children": [  ] }
+{  "cid": 798,  "name": "Senaida Hickerson",  "age": 59,  "address": {  "number": 8248,  "street": "7th St.",  "city": "San Jose" },  "interests": [ "Bass", "Coffee", "Video Games", "Coffee" ],  "children": [ {  "name": "Long Hickerson",  "age": 17 }, {  "name": "Logan Hickerson",  "age": 43 }, {  "name": "Toi Hickerson",  "age": 12 } ] }
+{  "cid": 307,  "name": "Abraham Lanphear",  "age": 20,  "address": {  "number": 7552,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Video Games" ],  "children": [ {  "name": "Toccara Lanphear" }, {  "name": "Milly Lanphear" } ] }
+{  "cid": 882,  "name": "Erin Birdsall",  "interests": [ "Music", "Walking", "Basketball", "Base Jumping" ],  "children": [ {  "name": "Bibi Birdsall" }, {  "name": "Richard Birdsall",  "age": 49 }, {  "name": "Evelina Birdsall",  "age": 33 } ] }
+{  "cid": 278,  "name": "Deb Nicole",  "age": 59,  "address": {  "number": 9003,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Books", "Computers", "Walking", "Cooking" ],  "children": [ {  "name": "Len Nicole" } ] }
+{  "cid": 638,  "name": "Obdulia Dicosmo",  "age": 14,  "address": {  "number": 9237,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Base Jumping", "Music", "Video Games", "Video Games" ],  "children": [ {  "name": "Han Dicosmo" }, {  "name": "Yang Dicosmo" } ] }
+{  "cid": 523,  "name": "Johanne Huls",  "interests": [ "Books", "Bass" ],  "children": [ {  "name": "Melynda Huls" }, {  "name": "Vicky Huls",  "age": 16 }, {  "name": "Charlott Huls" } ] }
+{  "cid": 461,  "name": "Dessie Schnibbe",  "interests": [  ],  "children": [  ] }
+{  "cid": 618,  "name": "Janella Hurtt",  "interests": [ "Skiing", "Coffee", "Skiing" ],  "children": [ {  "name": "Lupe Hurtt",  "age": 17 }, {  "name": "Jae Hurtt",  "age": 14 }, {  "name": "Evan Hurtt",  "age": 45 } ] }
+{  "cid": 65,  "name": "Voncile Villaneuva",  "age": 46,  "address": {  "number": 9976,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Skiing", "Basketball", "Running", "Running" ],  "children": [ {  "name": "An Villaneuva",  "age": 12 } ] }
+{  "cid": 346,  "name": "Elden Choma",  "interests": [  ],  "children": [ {  "name": "Valorie Choma" }, {  "name": "Leslee Choma" } ] }
+{  "cid": 380,  "name": "Silva Purdue",  "age": 33,  "address": {  "number": 1759,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Music", "Squash" ],  "children": [ {  "name": "Marshall Purdue" }, {  "name": "Yuki Purdue" }, {  "name": "Val Purdue",  "age": 12 }, {  "name": "Dominica Purdue" } ] }
+{  "cid": 974,  "name": "Alexis Malcomson",  "interests": [ "Movies", "Books" ],  "children": [ {  "name": "Kerri Malcomson" } ] }
+{  "cid": 195,  "name": "Annetta Demille",  "age": 17,  "address": {  "number": 5722,  "street": "Park St.",  "city": "Portland" },  "interests": [ "Bass" ],  "children": [ {  "name": "Natacha Demille" }, {  "name": "Giuseppe Demille" }, {  "name": "Kami Demille" }, {  "name": "Jewell Demille" } ] }
+{  "cid": 860,  "name": "Isabelle Sept",  "age": 88,  "address": {  "number": 4382,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Puzzles", "Books" ],  "children": [  ] }
+{  "cid": 117,  "name": "Leana Grims",  "interests": [ "Coffee", "Base Jumping", "Fishing", "Running" ],  "children": [ {  "name": "Tiara Grims" } ] }
+{  "cid": 566,  "name": "Asley Grow",  "interests": [ "Coffee", "Books", "Tennis" ],  "children": [ {  "name": "Dale Grow" } ] }
+{  "cid": 632,  "name": "Keeley Goga",  "interests": [ "Books", "Base Jumping" ],  "children": [ {  "name": "Walter Goga",  "age": 39 }, {  "name": "Chaya Goga" }, {  "name": "Melodie Goga" }, {  "name": "Isidro Goga",  "age": 32 } ] }
+{  "cid": 687,  "name": "Adriene Glowinski",  "interests": [  ],  "children": [  ] }
+{  "cid": 649,  "name": "Anisha Sender",  "interests": [ "Tennis", "Databases", "Bass" ],  "children": [ {  "name": "Viva Sender",  "age": 40 }, {  "name": "Terica Sender" } ] }
+{  "cid": 653,  "name": "Robbie Rhump",  "interests": [ "Squash", "Computers" ],  "children": [ {  "name": "Alishia Rhump",  "age": 14 }, {  "name": "Lyndsay Rhump",  "age": 27 } ] }
+{  "cid": 908,  "name": "Ferdinand Auila",  "age": 82,  "address": {  "number": 1071,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Base Jumping", "Running", "Wine" ],  "children": [ {  "name": "Ai Auila",  "age": 69 }, {  "name": "Laurel Auila" } ] }
+{  "cid": 778,  "name": "Shellie Sario",  "interests": [ "Puzzles" ],  "children": [  ] }
+{  "cid": 137,  "name": "Camellia Pressman",  "age": 81,  "address": {  "number": 3947,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Movies", "Books", "Bass" ],  "children": [ {  "name": "Dwana Pressman" }, {  "name": "Johnathan Pressman" }, {  "name": "Kasey Pressman" }, {  "name": "Mitch Pressman" } ] }
+{  "cid": 443,  "name": "Kylee Kowalczyk",  "age": 47,  "address": {  "number": 1555,  "street": "Hill St.",  "city": "Portland" },  "interests": [ "Music", "Books", "Books", "Wine" ],  "children": [ {  "name": "Erwin Kowalczyk",  "age": 29 } ] }
+{  "cid": 110,  "name": "Karmen Milanesi",  "age": 67,  "address": {  "number": 6223,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Squash", "Squash" ],  "children": [ {  "name": "Emely Milanesi" }, {  "name": "Adam Milanesi" }, {  "name": "Gregg Milanesi" }, {  "name": "Sean Milanesi",  "age": 37 } ] }
+{  "cid": 709,  "name": "Jazmine Twiddy",  "interests": [ "Puzzles", "Computers", "Wine" ],  "children": [ {  "name": "Veronika Twiddy",  "age": 21 } ] }
+{  "cid": 297,  "name": "Adeline Frierson",  "interests": [ "Coffee", "Computers", "Fishing" ],  "children": [ {  "name": "Marci Frierson" }, {  "name": "Rolanda Frierson" }, {  "name": "Del Frierson" } ] }
+{  "cid": 851,  "name": "Darrel Machia",  "age": 31,  "address": {  "number": 3290,  "street": "View St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Coy Machia",  "age": 13 }, {  "name": "Janean Machia",  "age": 13 }, {  "name": "Sandi Machia",  "age": 18 } ] }
+{  "cid": 512,  "name": "Paul Cobian",  "interests": [  ],  "children": [ {  "name": "Will Cobian",  "age": 30 }, {  "name": "Conrad Cobian",  "age": 35 }, {  "name": "Justin Cobian",  "age": 11 } ] }
+{  "cid": 420,  "name": "Coralie Regueira",  "interests": [ "Books", "Tennis" ],  "children": [ {  "name": "Latoyia Regueira",  "age": 31 }, {  "name": "Obdulia Regueira",  "age": 12 }, {  "name": "Herlinda Regueira" } ] }
+{  "cid": 926,  "name": "Krishna Barkdull",  "age": 31,  "address": {  "number": 2640,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [ "Cigars", "Skiing", "Video Games", "Coffee" ],  "children": [ {  "name": "Nilsa Barkdull" }, {  "name": "Denver Barkdull",  "age": 10 }, {  "name": "Jenell Barkdull",  "age": 15 } ] }
+{  "cid": 885,  "name": "Les Legere",  "age": 87,  "address": {  "number": 3998,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Bass", "Tennis", "Fishing" ],  "children": [ {  "name": "Concetta Legere",  "age": 45 }, {  "name": "Tamica Legere" }, {  "name": "Aurora Legere" } ] }
+{  "cid": 155,  "name": "Aubrey Kleve",  "age": 24,  "address": {  "number": 809,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Coffee", "Bass", "Bass", "Fishing" ],  "children": [  ] }
+{  "cid": 303,  "name": "Michel Bayird",  "age": 37,  "address": {  "number": 7939,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Shan Bayird",  "age": 12 } ] }
+{  "cid": 264,  "name": "Leon Yoshizawa",  "age": 81,  "address": {  "number": 608,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Running", "Books", "Running" ],  "children": [ {  "name": "Carmela Yoshizawa",  "age": 34 } ] }
+{  "cid": 500,  "name": "Tierra Bjorklund",  "interests": [ "Puzzles", "Skiing" ],  "children": [ {  "name": "Avelina Bjorklund",  "age": 54 }, {  "name": "Mallory Bjorklund" } ] }
+{  "cid": 299,  "name": "Jacob Wainman",  "age": 76,  "address": {  "number": 4551,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Base Jumping", "Wine", "Coffee" ],  "children": [ {  "name": "Abram Wainman",  "age": 28 }, {  "name": "Ramonita Wainman",  "age": 18 }, {  "name": "Sheryll Wainman" } ] }
+{  "cid": 822,  "name": "Shane Deleonardo",  "interests": [ "Skiing", "Books", "Fishing", "Puzzles" ],  "children": [  ] }
+{  "cid": 636,  "name": "Babara Shore",  "age": 83,  "address": {  "number": 9452,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Movies", "Tennis" ],  "children": [ {  "name": "Candy Shore",  "age": 58 }, {  "name": "Nanci Shore" }, {  "name": "Asia Shore" } ] }
+{  "cid": 423,  "name": "Elayne Twichell",  "interests": [ "Video Games", "Video Games", "Fishing", "Databases" ],  "children": [ {  "name": "Rickie Twichell",  "age": 27 }, {  "name": "Leonor Twichell" }, {  "name": "Shon Twichell",  "age": 39 } ] }
+{  "cid": 361,  "name": "Angela Lacki",  "age": 35,  "address": {  "number": 9710,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Skiing" ],  "children": [  ] }
+{  "cid": 596,  "name": "Juliane Maddy",  "interests": [ "Coffee", "Computers", "Walking", "Basketball" ],  "children": [ {  "name": "Joannie Maddy" }, {  "name": "Penny Maddy",  "age": 35 }, {  "name": "Joette Maddy",  "age": 35 }, {  "name": "Karla Maddy",  "age": 54 } ] }
+{  "cid": 894,  "name": "Reginald Julien",  "age": 16,  "address": {  "number": 1107,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Databases", "Wine" ],  "children": [ {  "name": "Arthur Julien" }, {  "name": "Evia Julien" } ] }
+{  "cid": 821,  "name": "Carole Edlund",  "age": 76,  "address": {  "number": 4008,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Computers", "Cooking", "Running", "Basketball" ],  "children": [ {  "name": "Garfield Edlund",  "age": 54 }, {  "name": "Brooks Edlund" }, {  "name": "Gertrudis Edlund" }, {  "name": "Tabitha Edlund",  "age": 58 } ] }
+{  "cid": 228,  "name": "Donnette Brumbley",  "interests": [ "Databases", "Music" ],  "children": [ {  "name": "Madlyn Brumbley" }, {  "name": "Apolonia Brumbley",  "age": 13 }, {  "name": "Stephine Brumbley" }, {  "name": "Zelma Brumbley",  "age": 51 } ] }
+{  "cid": 79,  "name": "Alyce Schoenle",  "age": 57,  "address": {  "number": 1345,  "street": "Main St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Stewart Schoenle",  "age": 16 }, {  "name": "Bruce Schoenle",  "age": 44 } ] }
+{  "cid": 133,  "name": "Carey Smitty",  "interests": [ "Books", "Bass", "Video Games", "Wine" ],  "children": [ {  "name": "Cyrstal Smitty",  "age": 31 } ] }
+{  "cid": 452,  "name": "Casie Marasigan",  "interests": [ "Walking", "Computers" ],  "children": [ {  "name": "Connie Marasigan" }, {  "name": "Kimberlie Marasigan" } ] }
+{  "cid": 80,  "name": "Dominique Gulbransen",  "interests": [ "Base Jumping", "Databases", "Movies", "Coffee" ],  "children": [ {  "name": "Elizabeth Gulbransen",  "age": 44 }, {  "name": "Lesley Gulbransen",  "age": 14 } ] }
+{  "cid": 391,  "name": "Lynn Gregory",  "age": 51,  "address": {  "number": 1249,  "street": "Hill St.",  "city": "San Jose" },  "interests": [  ],  "children": [ {  "name": "Jeannine Gregory" }, {  "name": "Jaymie Gregory" }, {  "name": "Lorrine Gregory",  "age": 37 } ] }
+{  "cid": 853,  "name": "Denisse Peralto",  "age": 25,  "address": {  "number": 3931,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Tennis", "Walking", "Basketball" ],  "children": [ {  "name": "Asha Peralto",  "age": 14 }, {  "name": "Clark Peralto" }, {  "name": "Jessika Peralto" }, {  "name": "Nadene Peralto" } ] }
+{  "cid": 923,  "name": "Bobbi Ursino",  "interests": [ "Movies", "Books", "Walking" ],  "children": [ {  "name": "Shon Ursino" }, {  "name": "Lorean Ursino" } ] }
+{  "cid": 976,  "name": "Madalyn Nidiffer",  "age": 35,  "address": {  "number": 7635,  "street": "Main St.",  "city": "San Jose" },  "interests": [ "Coffee", "Wine", "Music" ],  "children": [ {  "name": "Tricia Nidiffer",  "age": 10 }, {  "name": "Kevin Nidiffer",  "age": 24 }, {  "name": "Elyse Nidiffer" } ] }
+{  "cid": 473,  "name": "Cordell Solas",  "interests": [ "Squash", "Music", "Bass", "Puzzles" ],  "children": [ {  "name": "Douglass Solas" }, {  "name": "Claribel Solas" }, {  "name": "Fred Solas" }, {  "name": "Ahmed Solas",  "age": 21 } ] }
+{  "cid": 661,  "name": "Lorita Kraut",  "age": 43,  "address": {  "number": 5017,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Tennis", "Movies", "Bass" ],  "children": [ {  "name": "Mirian Kraut" } ] }
+{  "cid": 411,  "name": "Cindi Pepin",  "interests": [  ],  "children": [ {  "name": "Fallon Pepin",  "age": 39 }, {  "name": "Armanda Pepin" }, {  "name": "Loriann Pepin" }, {  "name": "Bambi Pepin",  "age": 43 } ] }
+{  "cid": 952,  "name": "Brianne Norg",  "age": 62,  "address": {  "number": 8650,  "street": "Washington St.",  "city": "San Jose" },  "interests": [ "Tennis", "Movies", "Computers", "Basketball" ],  "children": [ {  "name": "Cherish Norg",  "age": 41 }, {  "name": "Frances Norg",  "age": 49 }, {  "name": "Irwin Norg" } ] }
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+{  "cid": 418,  "name": "Gavin Delpino",  "interests": [ "Basketball", "Skiing", "Wine", "Fishing" ],  "children": [ {  "name": "Gianna Delpino" }, {  "name": "Carmella Delpino",  "age": 55 } ] }
+{  "cid": 943,  "name": "Kathryne Blacock",  "age": 82,  "address": {  "number": 3510,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Running", "Bass", "Music" ],  "children": [  ] }
+{  "cid": 707,  "name": "Nicholle Heibult",  "age": 67,  "address": {  "number": 1264,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Movies", "Basketball", "Squash", "Skiing" ],  "children": [  ] }
+{  "cid": 379,  "name": "Penney Huslander",  "age": 58,  "address": {  "number": 6919,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Cooking", "Running" ],  "children": [ {  "name": "Magaret Huslander" }, {  "name": "Dodie Huslander",  "age": 14 } ] }
+{  "cid": 211,  "name": "Kristian Knepshield",  "interests": [  ],  "children": [  ] }
+{  "cid": 574,  "name": "Camellia Toxey",  "age": 52,  "address": {  "number": 5437,  "street": "Hill St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Deandrea Toxey" }, {  "name": "Danille Toxey" } ] }
+{  "cid": 597,  "name": "Clarine Eutsey",  "age": 39,  "address": {  "number": 9112,  "street": "7th St.",  "city": "Portland" },  "interests": [ "Video Games", "Cigars", "Walking" ],  "children": [  ] }
+{  "cid": 457,  "name": "Jenice Boger",  "interests": [ "Skiing", "Databases", "Running" ],  "children": [  ] }
+{  "cid": 782,  "name": "Shameka Haifa",  "age": 16,  "address": {  "number": 9555,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Cigars", "Computers", "Coffee", "Skiing" ],  "children": [ {  "name": "Dannette Haifa" } ] }
+{  "cid": 86,  "name": "Sofia Mongiovi",  "interests": [  ],  "children": [ {  "name": "Rosamaria Mongiovi",  "age": 25 } ] }
+{  "cid": 861,  "name": "Hugh Mcbrien",  "interests": [ "Skiing", "Cigars", "Cooking" ],  "children": [ {  "name": "Otha Mcbrien",  "age": 38 } ] }
+{  "cid": 989,  "name": "Loyce Ferryman",  "age": 21,  "address": {  "number": 8937,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Puzzles", "Tennis", "Databases", "Base Jumping" ],  "children": [ {  "name": "Vada Ferryman" }, {  "name": "Reyes Ferryman" } ] }
+{  "cid": 901,  "name": "Riva Ziko",  "interests": [ "Running", "Tennis", "Video Games" ],  "children": [ {  "name": "Leandra Ziko",  "age": 49 }, {  "name": "Torrie Ziko" } ] }
+{  "cid": 433,  "name": "Caleb Merrbach",  "interests": [  ],  "children": [ {  "name": "Amado Merrbach",  "age": 45 } ] }
+{  "cid": 793,  "name": "Shondra Gollman",  "interests": [ "Skiing" ],  "children": [ {  "name": "Paul Gollman",  "age": 30 }, {  "name": "Katherina Gollman",  "age": 53 } ] }
+{  "cid": 263,  "name": "Mellisa Machalek",  "interests": [ "Bass", "Coffee", "Skiing" ],  "children": [  ] }
+{  "cid": 239,  "name": "Celsa Fondow",  "interests": [ "Base Jumping", "Computers", "Cooking", "Wine" ],  "children": [  ] }
+{  "cid": 852,  "name": "Terrell Ramsay",  "interests": [  ],  "children": [  ] }
+{  "cid": 918,  "name": "Melia Caparelli",  "age": 22,  "address": {  "number": 16,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles", "Fishing", "Coffee", "Music" ],  "children": [  ] }
+{  "cid": 534,  "name": "Bridgett Ebel",  "interests": [ "Cigars" ],  "children": [  ] }
+{  "cid": 744,  "name": "Crysta Christen",  "age": 57,  "address": {  "number": 439,  "street": "Hill St.",  "city": "Portland" },  "interests": [ "Basketball", "Squash", "Base Jumping" ],  "children": [  ] }
+{  "cid": 815,  "name": "Leigha Bires",  "age": 11,  "address": {  "number": 7263,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Running" ],  "children": [ {  "name": "Val Bires" } ] }
+{  "cid": 243,  "name": "Love Hoftiezer",  "age": 88,  "address": {  "number": 2491,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Cigars", "Coffee", "Books" ],  "children": [ {  "name": "Kellee Hoftiezer",  "age": 77 } ] }
+{  "cid": 561,  "name": "Renetta Cudworth",  "interests": [ "Skiing", "Basketball" ],  "children": [  ] }
+{  "cid": 429,  "name": "Eladia Scannell",  "age": 20,  "address": {  "number": 5036,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Skiing", "Music", "Movies" ],  "children": [  ] }
+{  "cid": 439,  "name": "Lillia Villnave",  "age": 34,  "address": {  "number": 9212,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Otis Villnave" } ] }
+{  "cid": 293,  "name": "Terresa Hofstetter",  "age": 15,  "address": {  "number": 3338,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Computers", "Running", "Cigars", "Fishing" ],  "children": [ {  "name": "Hubert Hofstetter" }, {  "name": "Jolie Hofstetter" } ] }
+{  "cid": 734,  "name": "Lera Korn",  "interests": [ "Tennis", "Puzzles", "Cigars" ],  "children": [ {  "name": "Criselda Korn",  "age": 37 } ] }
+{  "cid": 914,  "name": "Hunter Flournoy",  "interests": [ "Cooking", "Squash" ],  "children": [ {  "name": "Christopher Flournoy",  "age": 59 }, {  "name": "Earnestine Flournoy" } ] }
+{  "cid": 648,  "name": "Isaac Eagen",  "interests": [ "Fishing", "Cooking", "Basketball", "Books" ],  "children": [ {  "name": "Onita Eagen" }, {  "name": "Anjanette Eagen" } ] }
+{  "cid": 843,  "name": "Lenny Acerno",  "age": 64,  "address": {  "number": 7656,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Base Jumping", "Squash" ],  "children": [  ] }
+{  "cid": 100,  "name": "Taisha Wills",  "interests": [ "Base Jumping", "Music", "Skiing", "Databases" ],  "children": [  ] }
+{  "cid": 6,  "name": "Cris Kager",  "age": 70,  "address": {  "number": 8402,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Walking" ],  "children": [ {  "name": "Carmelo Kager",  "age": 34 }, {  "name": "Faustina Kager" } ] }
+{  "cid": 571,  "name": "Lenita Tentler",  "interests": [ "Running", "Fishing" ],  "children": [ {  "name": "Damian Tentler",  "age": 16 }, {  "name": "Camellia Tentler" }, {  "name": "Vern Tentler",  "age": 15 } ] }
+{  "cid": 324,  "name": "Wendolyn Centorino",  "interests": [  ],  "children": [  ] }
+{  "cid": 592,  "name": "Rachelle Spare",  "age": 13,  "address": {  "number": 8088,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Squash", "Puzzles" ],  "children": [ {  "name": "Theo Spare" }, {  "name": "Shizue Spare" } ] }
+{  "cid": 752,  "name": "Maria Lebovic",  "interests": [ "Bass" ],  "children": [ {  "name": "Thi Lebovic" }, {  "name": "Rosamaria Lebovic",  "age": 23 }, {  "name": "Brinda Lebovic",  "age": 39 } ] }
+{  "cid": 591,  "name": "Matthew Tenhaeff",  "interests": [ "Databases", "Video Games" ],  "children": [ {  "name": "Jan Tenhaeff",  "age": 25 }, {  "name": "Nana Tenhaeff" }, {  "name": "Laticia Tenhaeff" }, {  "name": "Ara Tenhaeff",  "age": 44 } ] }
+{  "cid": 404,  "name": "Harriette Abo",  "interests": [ "Walking", "Running" ],  "children": [  ] }
+{  "cid": 621,  "name": "Theresa Satterthwaite",  "age": 16,  "address": {  "number": 3249,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Wine", "Skiing", "Wine", "Fishing" ],  "children": [ {  "name": "Rickie Satterthwaite" }, {  "name": "Rina Satterthwaite" } ] }
+{  "cid": 215,  "name": "Ashton Schadegg",  "interests": [ "Databases", "Music" ],  "children": [ {  "name": "Ciara Schadegg" }, {  "name": "Karisa Schadegg",  "age": 11 }, {  "name": "Hayden Schadegg",  "age": 44 } ] }
+{  "cid": 640,  "name": "Willy Bielak",  "interests": [ "Squash" ],  "children": [  ] }
+{  "cid": 486,  "name": "Willa Patman",  "interests": [  ],  "children": [ {  "name": "Ross Patman",  "age": 42 }, {  "name": "Erin Patman" }, {  "name": "Vannessa Patman",  "age": 11 }, {  "name": "Hilaria Patman",  "age": 28 } ] }
+{  "cid": 389,  "name": "Loraine Morfee",  "age": 72,  "address": {  "number": 2945,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Wine", "Walking" ],  "children": [ {  "name": "Berry Morfee",  "age": 30 } ] }
+{  "cid": 339,  "name": "Sharonda Catalino",  "age": 15,  "address": {  "number": 7616,  "street": "Washington St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Lorine Catalino" } ] }
+{  "cid": 399,  "name": "Myra Millwee",  "interests": [ "Tennis", "Running", "Tennis" ],  "children": [ {  "name": "Gaye Millwee" } ] }
+{  "cid": 202,  "name": "Evangelina Poloskey",  "age": 46,  "address": {  "number": 8285,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [ "Wine", "Squash" ],  "children": [ {  "name": "Anthony Poloskey",  "age": 27 }, {  "name": "Olga Poloskey",  "age": 10 }, {  "name": "Carmon Poloskey",  "age": 13 }, {  "name": "Tanja Poloskey",  "age": 20 } ] }
+{  "cid": 631,  "name": "Brook Jenks",  "interests": [ "Wine" ],  "children": [ {  "name": "Eldon Jenks" }, {  "name": "Luann Jenks",  "age": 53 }, {  "name": "Aurora Jenks",  "age": 37 } ] }
+{  "cid": 549,  "name": "Kathrin Cruff",  "age": 63,  "address": {  "number": 9002,  "street": "Washington St.",  "city": "Sunnyvale" },  "interests": [ "Tennis", "Books" ],  "children": [ {  "name": "Candi Cruff",  "age": 49 }, {  "name": "Barry Cruff",  "age": 17 }, {  "name": "Shane Cruff",  "age": 18 }, {  "name": "Brendon Cruff" } ] }
+{  "cid": 179,  "name": "Antonette Bernice",  "interests": [  ],  "children": [ {  "name": "Solange Bernice" } ] }
+{  "cid": 74,  "name": "Lonnie Ercolani",  "age": 79,  "address": {  "number": 2655,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Music", "Coffee" ],  "children": [ {  "name": "Cassi Ercolani" } ] }
+{  "cid": 249,  "name": "Kiana Satiago",  "interests": [  ],  "children": [ {  "name": "Stacy Satiago" } ] }
+{  "cid": 114,  "name": "Stephine Capinpin",  "age": 78,  "address": {  "number": 5618,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles", "Basketball" ],  "children": [ {  "name": "Krystal Capinpin",  "age": 31 }, {  "name": "Angelic Capinpin",  "age": 45 } ] }
+{  "cid": 945,  "name": "Hildegard Dedinas",  "age": 70,  "address": {  "number": 3273,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Renato Dedinas",  "age": 35 } ] }
+{  "cid": 397,  "name": "Blake Kealy",  "age": 34,  "address": {  "number": 2156,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Wine", "Cigars" ],  "children": [ {  "name": "Lorenza Kealy" }, {  "name": "Beula Kealy",  "age": 15 }, {  "name": "Kristofer Kealy" }, {  "name": "Shayne Kealy" } ] }
+{  "cid": 915,  "name": "Eugene Okorududu",  "age": 62,  "address": {  "number": 8364,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Wine", "Skiing", "Cooking", "Movies" ],  "children": [ {  "name": "Renee Okorududu" }, {  "name": "Enid Okorududu" }, {  "name": "Tammy Okorududu" }, {  "name": "Shirlee Okorududu",  "age": 28 } ] }
+{  "cid": 646,  "name": "Pablo Catterton",  "interests": [ "Fishing", "Computers" ],  "children": [  ] }
+{  "cid": 359,  "name": "Sharika Vientos",  "age": 42,  "address": {  "number": 5981,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [ "Walking", "Bass", "Fishing", "Movies" ],  "children": [ {  "name": "Clifton Vientos",  "age": 21 }, {  "name": "Renae Vientos" }, {  "name": "Marcelo Vientos",  "age": 31 }, {  "name": "Jacalyn Vientos" } ] }
+{  "cid": 99,  "name": "Bernardina Thacher",  "age": 35,  "address": {  "number": 1582,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [ "Movies", "Fishing", "Fishing" ],  "children": [ {  "name": "Randee Thacher" }, {  "name": "China Thacher" } ] }
+{  "cid": 58,  "name": "Rosemarie Mattei",  "age": 80,  "address": {  "number": 1390,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Sonya Mattei",  "age": 52 }, {  "name": "Elenor Mattei" } ] }
+{  "cid": 931,  "name": "Octavia Koiner",  "interests": [  ],  "children": [ {  "name": "Ardath Koiner",  "age": 32 }, {  "name": "Milly Koiner" }, {  "name": "Arlinda Koiner" }, {  "name": "Debby Koiner" } ] }
+{  "cid": 779,  "name": "Vinita Bockskopf",  "interests": [ "Tennis", "Video Games" ],  "children": [  ] }
+{  "cid": 491,  "name": "Tobi Celani",  "age": 63,  "address": {  "number": 2200,  "street": "Main St.",  "city": "Mountain View" },  "interests": [ "Fishing", "Running", "Bass", "Fishing" ],  "children": [ {  "name": "Alana Celani" }, {  "name": "Lashaun Celani" }, {  "name": "Sirena Celani",  "age": 23 }, {  "name": "Tami Celani" } ] }
+{  "cid": 131,  "name": "Kourtney Whitesel",  "interests": [  ],  "children": [  ] }
+{  "cid": 828,  "name": "Marcelle Steinhour",  "interests": [ "Running", "Basketball", "Walking" ],  "children": [ {  "name": "Jimmie Steinhour",  "age": 13 }, {  "name": "Kirstie Steinhour",  "age": 19 } ] }
+{  "cid": 304,  "name": "Francine Reddin",  "age": 39,  "address": {  "number": 9392,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Music", "Base Jumping" ],  "children": [ {  "name": "Millicent Reddin" } ] }
+{  "cid": 545,  "name": "Dolores Ferer",  "interests": [ "Coffee", "Bass", "Tennis" ],  "children": [ {  "name": "Bridgette Ferer" } ] }
+{  "cid": 992,  "name": "Staci Alexandropoul",  "interests": [ "Databases", "Movies", "Tennis" ],  "children": [ {  "name": "Casimira Alexandropoul" }, {  "name": "Kena Alexandropoul",  "age": 54 }, {  "name": "Ellie Alexandropoul" }, {  "name": "Ambrose Alexandropoul" } ] }
+{  "cid": 112,  "name": "Dorie Lave",  "age": 10,  "address": {  "number": 2286,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Coffee" ],  "children": [ {  "name": "Grady Lave" }, {  "name": "Daysi Lave" } ] }
+{  "cid": 47,  "name": "Britni Haider",  "age": 86,  "address": {  "number": 9172,  "street": "Park St.",  "city": "Seattle" },  "interests": [ "Basketball", "Fishing", "Tennis", "Fishing" ],  "children": [ {  "name": "Vergie Haider" } ] }
+{  "cid": 725,  "name": "Sallie Calderon",  "interests": [  ],  "children": [  ] }
+{  "cid": 354,  "name": "Marian Munzell",  "age": 73,  "address": {  "number": 4504,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Fishing", "Puzzles" ],  "children": [  ] }
+{  "cid": 210,  "name": "Jillian Roadruck",  "interests": [ "Coffee", "Tennis" ],  "children": [ {  "name": "Marguerite Roadruck" }, {  "name": "Ilana Roadruck" }, {  "name": "Chantelle Roadruck",  "age": 19 }, {  "name": "Nikia Roadruck",  "age": 43 } ] }
+{  "cid": 736,  "name": "Desmond Branam",  "interests": [  ],  "children": [ {  "name": "Manuel Branam",  "age": 51 } ] }
+{  "cid": 682,  "name": "Krystle Weingartner",  "age": 87,  "address": {  "number": 5293,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Squash" ],  "children": [ {  "name": "Bryanna Weingartner",  "age": 19 }, {  "name": "Rubie Weingartner",  "age": 32 }, {  "name": "Raye Weingartner" } ] }
+{  "cid": 637,  "name": "George Beamer",  "age": 53,  "address": {  "number": 9464,  "street": "Park St.",  "city": "Mountain View" },  "interests": [ "Fishing", "Running", "Books", "Music" ],  "children": [ {  "name": "Mayra Beamer",  "age": 12 }, {  "name": "Bernadette Beamer",  "age": 39 }, {  "name": "Nicky Beamer" }, {  "name": "Cheree Beamer" } ] }
+{  "cid": 10,  "name": "Trent Liedy",  "age": 51,  "address": {  "number": 1758,  "street": "Oak St.",  "city": "San Jose" },  "interests": [  ],  "children": [  ] }
+{  "cid": 60,  "name": "Dorthey Gradowski",  "interests": [ "Tennis", "Tennis", "Databases", "Squash" ],  "children": [ {  "name": "Andera Gradowski",  "age": 15 }, {  "name": "Demetrice Gradowski",  "age": 13 } ] }
+{  "cid": 50,  "name": "Lise Gorelli",  "interests": [ "Books", "Wine", "Skiing", "Computers" ],  "children": [ {  "name": "Darleen Gorelli" }, {  "name": "Latia Gorelli" }, {  "name": "Page Gorelli" }, {  "name": "Columbus Gorelli" } ] }
+{  "cid": 185,  "name": "Abigail Zugg",  "age": 22,  "address": {  "number": 6676,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Computers", "Basketball", "Video Games", "Basketball" ],  "children": [ {  "name": "Peter Zugg",  "age": 10 }, {  "name": "Ariane Zugg" } ] }
+{  "cid": 630,  "name": "Darla Domenick",  "age": 14,  "address": {  "number": 3315,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Databases" ],  "children": [ {  "name": "Verda Domenick" } ] }
+{  "cid": 453,  "name": "Sherlyn Deadmond",  "interests": [ "Tennis", "Puzzles", "Base Jumping" ],  "children": [ {  "name": "Torrie Deadmond",  "age": 46 }, {  "name": "Cleotilde Deadmond",  "age": 55 }, {  "name": "Garry Deadmond",  "age": 34 }, {  "name": "Valrie Deadmond" } ] }
+{  "cid": 785,  "name": "Gabriel Breidel",  "age": 32,  "address": {  "number": 9288,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Cigars", "Bass" ],  "children": [ {  "name": "Bernie Breidel" } ] }
+{  "cid": 540,  "name": "Bryanna Herling",  "age": 67,  "address": {  "number": 7682,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Cyrstal Herling",  "age": 50 }, {  "name": "Vallie Herling",  "age": 54 }, {  "name": "Doris Herling" } ] }
+{  "cid": 659,  "name": "Daniel Groskreutz",  "interests": [ "Databases" ],  "children": [ {  "name": "Mariam Groskreutz",  "age": 21 }, {  "name": "Carlton Groskreutz" } ] }
+{  "cid": 85,  "name": "Fatimah Steltenpohl",  "age": 25,  "address": {  "number": 6175,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Genoveva Steltenpohl",  "age": 14 } ] }
+{  "cid": 755,  "name": "Bette Trentz",  "age": 57,  "address": {  "number": 2794,  "street": "Park St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Christa Trentz",  "age": 14 }, {  "name": "Jestine Trentz",  "age": 22 }, {  "name": "Shantel Trentz",  "age": 37 }, {  "name": "Jacklyn Trentz" } ] }
+{  "cid": 942,  "name": "Emerson Keblish",  "interests": [ "Tennis" ],  "children": [ {  "name": "Leonora Keblish" } ] }
+{  "cid": 290,  "name": "Kimberly Gullatte",  "age": 51,  "address": {  "number": 4130,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Running", "Squash", "Databases" ],  "children": [ {  "name": "Micheal Gullatte" }, {  "name": "Estrella Gullatte",  "age": 40 }, {  "name": "Corrine Gullatte" }, {  "name": "Ward Gullatte" } ] }
+{  "cid": 115,  "name": "Jason Oakden",  "age": 89,  "address": {  "number": 8182,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Music", "Basketball", "Movies" ],  "children": [ {  "name": "Johnson Oakden" }, {  "name": "Neva Oakden" }, {  "name": "Juliann Oakden" }, {  "name": "Elmer Oakden" } ] }
+{  "cid": 409,  "name": "Edwardo Brayton",  "age": 28,  "address": {  "number": 473,  "street": "7th St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Basketball", "Computers", "Fishing" ],  "children": [ {  "name": "Werner Brayton" } ] }
+{  "cid": 757,  "name": "Bertie Flemming",  "interests": [ "Tennis", "Music", "Running", "Cooking" ],  "children": [ {  "name": "Temeka Flemming",  "age": 46 }, {  "name": "Terrance Flemming" }, {  "name": "Jenette Flemming",  "age": 23 }, {  "name": "Debra Flemming" } ] }
+{  "cid": 236,  "name": "Muriel Laib",  "age": 25,  "address": {  "number": 4481,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Fishing", "Tennis" ],  "children": [ {  "name": "Jann Laib" }, {  "name": "Lila Laib",  "age": 10 }, {  "name": "Elyse Laib",  "age": 11 } ] }
+{  "cid": 262,  "name": "Diane Bowersmith",  "interests": [ "Basketball", "Movies", "Music", "Squash" ],  "children": [ {  "name": "Errol Bowersmith",  "age": 16 }, {  "name": "Lien Bowersmith",  "age": 10 } ] }
+{  "cid": 575,  "name": "Phyliss Mattes",  "age": 26,  "address": {  "number": 3956,  "street": "Washington St.",  "city": "Los Angeles" },  "interests": [ "Tennis", "Music", "Running", "Music" ],  "children": [  ] }
+{  "cid": 799,  "name": "Ronny Piefer",  "age": 45,  "address": {  "number": 7724,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Fishing" ],  "children": [ {  "name": "Chantal Piefer",  "age": 24 }, {  "name": "Tiffany Piefer" }, {  "name": "Farrah Piefer",  "age": 21 }, {  "name": "Dee Piefer" } ] }
+{  "cid": 676,  "name": "Ima Juart",  "age": 64,  "address": {  "number": 2498,  "street": "Cedar St.",  "city": "Portland" },  "interests": [ "Walking" ],  "children": [ {  "name": "Cortez Juart",  "age": 17 }, {  "name": "Guillermo Juart" }, {  "name": "Shelley Juart",  "age": 20 }, {  "name": "Daryl Juart" } ] }
+{  "cid": 781,  "name": "Christy Darcangelo",  "age": 42,  "address": {  "number": 2178,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Computers", "Fishing" ],  "children": [ {  "name": "Luis Darcangelo",  "age": 21 }, {  "name": "Omega Darcangelo",  "age": 26 }, {  "name": "Remedios Darcangelo",  "age": 28 }, {  "name": "Domenic Darcangelo",  "age": 21 } ] }
+{  "cid": 495,  "name": "Lashaun Gaud",  "interests": [ "Music", "Music", "Coffee", "Basketball" ],  "children": [ {  "name": "Elizabeth Gaud" }, {  "name": "Eloise Gaud" }, {  "name": "Dell Gaud" }, {  "name": "Lala Gaud" } ] }
+{  "cid": 886,  "name": "Jerry Defusco",  "interests": [ "Databases", "Puzzles", "Puzzles", "Basketball" ],  "children": [ {  "name": "Caroyln Defusco" }, {  "name": "Eilene Defusco" } ] }
+{  "cid": 119,  "name": "Chan Morreau",  "age": 22,  "address": {  "number": 1774,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Puzzles", "Squash" ],  "children": [ {  "name": "Arlette Morreau" } ] }
+{  "cid": 750,  "name": "Rosaura Gaul",  "interests": [ "Music", "Books", "Tennis" ],  "children": [ {  "name": "Letisha Gaul",  "age": 41 } ] }
+{  "cid": 770,  "name": "Merrill Tilson",  "interests": [ "Computers", "Skiing" ],  "children": [ {  "name": "Elna Tilson" } ] }
+{  "cid": 374,  "name": "Clair Quinn",  "interests": [ "Walking", "Books" ],  "children": [ {  "name": "Wesley Quinn",  "age": 17 }, {  "name": "Maren Quinn",  "age": 50 }, {  "name": "Ila Quinn",  "age": 43 }, {  "name": "Casie Quinn" } ] }
+{  "cid": 812,  "name": "Bee Godette",  "age": 26,  "address": {  "number": 1757,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Video Games", "Base Jumping", "Tennis" ],  "children": [ {  "name": "Madaline Godette",  "age": 10 }, {  "name": "Shasta Godette",  "age": 15 }, {  "name": "Parthenia Godette",  "age": 11 }, {  "name": "Priscila Godette",  "age": 13 } ] }
+{  "cid": 462,  "name": "Margaret Galvis",  "interests": [ "Base Jumping", "Movies", "Movies" ],  "children": [ {  "name": "Isaac Galvis",  "age": 48 }, {  "name": "Mei Galvis" }, {  "name": "Asha Galvis" }, {  "name": "Zachery Galvis" } ] }
+{  "cid": 38,  "name": "Lawanna Abadi",  "age": 35,  "address": {  "number": 6942,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Arthur Abadi",  "age": 10 } ] }
+{  "cid": 362,  "name": "Alta Bantug",  "interests": [ "Computers" ],  "children": [  ] }
+{  "cid": 387,  "name": "Leonard Mabie",  "age": 33,  "address": {  "number": 6703,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Bass", "Running", "Walking" ],  "children": [ {  "name": "Jone Mabie",  "age": 16 }, {  "name": "Claire Mabie" }, {  "name": "Larraine Mabie" }, {  "name": "Corrina Mabie" } ] }
+{  "cid": 56,  "name": "Andria Killelea",  "interests": [ "Cigars", "Skiing" ],  "children": [  ] }
+{  "cid": 369,  "name": "Nickole Dory",  "age": 10,  "address": {  "number": 4761,  "street": "View St.",  "city": "Portland" },  "interests": [ "Walking", "Cooking" ],  "children": [ {  "name": "Annmarie Dory" }, {  "name": "Michele Dory" }, {  "name": "Annamae Dory" }, {  "name": "Flora Dory" } ] }
+{  "cid": 862,  "name": "Constance Bries",  "age": 77,  "address": {  "number": 2585,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Lizzie Bries",  "age": 42 }, {  "name": "Shenika Bries" }, {  "name": "Phillip Bries" } ] }
+{  "cid": 39,  "name": "Brock Froncillo",  "age": 72,  "address": {  "number": 4645,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Base Jumping", "Skiing" ],  "children": [ {  "name": "Cole Froncillo" }, {  "name": "Ivana Froncillo" }, {  "name": "Hugh Froncillo",  "age": 23 } ] }
+{  "cid": 310,  "name": "Lyda Madriz",  "age": 42,  "address": {  "number": 8543,  "street": "Oak St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Databases", "Running", "Cooking" ],  "children": [ {  "name": "Jamila Madriz" }, {  "name": "Micah Madriz" }, {  "name": "Judie Madriz",  "age": 29 }, {  "name": "Joselyn Madriz",  "age": 31 } ] }
+{  "cid": 34,  "name": "Sam Tannahill",  "interests": [ "Books" ],  "children": [  ] }
+{  "cid": 325,  "name": "Ai Tarleton",  "interests": [ "Coffee", "Music" ],  "children": [ {  "name": "Risa Tarleton",  "age": 24 }, {  "name": "Leonila Tarleton" }, {  "name": "Thomasina Tarleton" } ] }
+{  "cid": 392,  "name": "Isiah Nussbaumer",  "interests": [ "Squash" ],  "children": [  ] }
+{  "cid": 447,  "name": "Iris Schoneman",  "age": 34,  "address": {  "number": 7648,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Bass", "Wine", "Puzzles", "Cigars" ],  "children": [ {  "name": "Shemika Schoneman",  "age": 11 }, {  "name": "Maritza Schoneman",  "age": 21 }, {  "name": "Martha Schoneman",  "age": 20 } ] }
+{  "cid": 240,  "name": "Will Marien",  "interests": [ "Basketball", "Music", "Video Games", "Coffee" ],  "children": [ {  "name": "Hue Marien" }, {  "name": "Waltraud Marien" }, {  "name": "Kai Marien",  "age": 15 }, {  "name": "Tracie Marien",  "age": 42 } ] }
+{  "cid": 24,  "name": "Hosea Wilburn",  "interests": [  ],  "children": [  ] }
+{  "cid": 917,  "name": "Jerri Blachowski",  "interests": [ "Skiing" ],  "children": [ {  "name": "Chet Blachowski",  "age": 43 }, {  "name": "Mallory Blachowski" }, {  "name": "Akilah Blachowski" } ] }
+{  "cid": 147,  "name": "Marla Pollan",  "age": 24,  "address": {  "number": 9271,  "street": "Oak St.",  "city": "Portland" },  "interests": [ "Music" ],  "children": [ {  "name": "Song Pollan",  "age": 11 }, {  "name": "Lili Pollan",  "age": 13 }, {  "name": "Shaunte Pollan",  "age": 12 }, {  "name": "Sandie Pollan" } ] }
+{  "cid": 178,  "name": "Athena Kaluna",  "interests": [ "Running", "Computers", "Basketball" ],  "children": [ {  "name": "Rosalba Kaluna",  "age": 48 }, {  "name": "Max Kaluna",  "age": 10 } ] }
+{  "cid": 889,  "name": "Elvis Schoff",  "age": 83,  "address": {  "number": 6724,  "street": "Hill St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Spring Schoff",  "age": 43 }, {  "name": "Davis Schoff",  "age": 55 }, {  "name": "Ryann Schoff",  "age": 58 }, {  "name": "Clarinda Schoff",  "age": 11 } ] }
+{  "cid": 360,  "name": "Billye Grumet",  "age": 82,  "address": {  "number": 7052,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Coffee" ],  "children": [ {  "name": "Linnea Grumet" }, {  "name": "Charline Grumet",  "age": 67 } ] }
+{  "cid": 141,  "name": "Adena Klockars",  "interests": [ "Skiing", "Computers", "Bass", "Cigars" ],  "children": [  ] }
+{  "cid": 364,  "name": "Joni Dazey",  "age": 14,  "address": {  "number": 1237,  "street": "Oak St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Kraig Dazey" } ] }
+{  "cid": 598,  "name": "Venus Peat",  "interests": [ "Coffee", "Walking", "Cigars" ],  "children": [ {  "name": "Antonetta Peat" }, {  "name": "Shane Peat" } ] }
+{  "cid": 376,  "name": "Jeffrey Hegarty",  "interests": [ "Puzzles" ],  "children": [ {  "name": "April Hegarty" }, {  "name": "Wilbur Hegarty" }, {  "name": "Hanh Hegarty" } ] }
+{  "cid": 544,  "name": "Silas Demay",  "age": 69,  "address": {  "number": 447,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Tennis", "Bass" ],  "children": [ {  "name": "Latonya Demay" }, {  "name": "Lissette Demay",  "age": 37 }, {  "name": "Lynell Demay",  "age": 42 }, {  "name": "Mikel Demay",  "age": 17 } ] }
+{  "cid": 538,  "name": "Mack Vollick",  "interests": [ "Base Jumping", "Fishing", "Walking", "Computers" ],  "children": [ {  "name": "Gil Vollick",  "age": 11 }, {  "name": "Marica Vollick" } ] }
+{  "cid": 88,  "name": "Courtney Muckleroy",  "interests": [ "Wine", "Movies", "Skiing" ],  "children": [ {  "name": "Alona Muckleroy",  "age": 30 }, {  "name": "Flora Muckleroy",  "age": 41 }, {  "name": "Angel Muckleroy" }, {  "name": "Daniella Muckleroy" } ] }
+{  "cid": 136,  "name": "Aubrey Kasuboski",  "interests": [ "Cigars" ],  "children": [  ] }
+{  "cid": 91,  "name": "Luna Machen",  "interests": [ "Wine" ],  "children": [ {  "name": "Randal Machen",  "age": 59 }, {  "name": "Emely Machen" } ] }
+{  "cid": 497,  "name": "Chantay Balak",  "interests": [ "Bass", "Fishing" ],  "children": [ {  "name": "John Balak" }, {  "name": "Thu Balak",  "age": 38 } ] }
+{  "cid": 296,  "name": "Doreen Kea",  "age": 89,  "address": {  "number": 7034,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [ "Movies" ],  "children": [ {  "name": "Lyndsay Kea",  "age": 68 }, {  "name": "Trena Kea",  "age": 18 } ] }
+{  "cid": 106,  "name": "Charles Verna",  "interests": [ "Bass", "Books" ],  "children": [ {  "name": "Betsy Verna",  "age": 37 }, {  "name": "Chae Verna",  "age": 35 }, {  "name": "Naoma Verna",  "age": 42 } ] }
+{  "cid": 893,  "name": "Norberto Banchero",  "interests": [  ],  "children": [  ] }
+{  "cid": 953,  "name": "Erasmo Nate",  "interests": [ "Bass", "Cigars", "Books", "Basketball" ],  "children": [ {  "name": "Doloris Nate",  "age": 11 } ] }
+{  "cid": 643,  "name": "Juliet Skreen",  "interests": [ "Walking" ],  "children": [  ] }
+{  "cid": 579,  "name": "Sabra Yuenger",  "age": 45,  "address": {  "number": 2681,  "street": "Cedar St.",  "city": "Sunnyvale" },  "interests": [ "Puzzles" ],  "children": [ {  "name": "Eddie Yuenger" } ] }
+{  "cid": 94,  "name": "Edgardo Dunnegan",  "interests": [  ],  "children": [ {  "name": "Lyndia Dunnegan" } ] }
+{  "cid": 617,  "name": "Jacques Gaskill",  "interests": [ "Cigars", "Coffee", "Computers", "Wine" ],  "children": [ {  "name": "Angelyn Gaskill" }, {  "name": "Jeanett Gaskill",  "age": 40 }, {  "name": "Emelda Gaskill",  "age": 34 } ] }
+{  "cid": 605,  "name": "Sue Henriksen",  "age": 78,  "address": {  "number": 7208,  "street": "Cedar St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Lauretta Henriksen" }, {  "name": "Leigh Henriksen",  "age": 11 } ] }
+{  "cid": 660,  "name": "Israel Aday",  "interests": [ "Wine", "Bass", "Cigars" ],  "children": [ {  "name": "Mi Aday" } ] }
+{  "cid": 71,  "name": "Alva Sieger",  "interests": [ "Movies", "Walking" ],  "children": [ {  "name": "Renetta Sieger" }, {  "name": "Shiloh Sieger",  "age": 57 }, {  "name": "Lavina Sieger" }, {  "name": "Larraine Sieger" } ] }
+{  "cid": 730,  "name": "Marti Vandoren",  "interests": [ "Skiing", "Bass" ],  "children": [ {  "name": "Carroll Vandoren" }, {  "name": "Lorretta Vandoren",  "age": 30 }, {  "name": "Chloe Vandoren",  "age": 42 }, {  "name": "Ilona Vandoren" } ] }
+{  "cid": 388,  "name": "Laree Faist",  "age": 20,  "address": {  "number": 1003,  "street": "Main St.",  "city": "Seattle" },  "interests": [ "Skiing", "Movies", "Video Games", "Cooking" ],  "children": [ {  "name": "Parthenia Faist" }, {  "name": "Maxima Faist" }, {  "name": "Merissa Faist" } ] }
+{  "cid": 958,  "name": "Ricardo Pezzica",  "interests": [  ],  "children": [ {  "name": "Delois Pezzica",  "age": 11 } ] }
+{  "cid": 485,  "name": "Gene Rogoff",  "interests": [ "Fishing" ],  "children": [ {  "name": "Ebonie Rogoff" } ] }
+{  "cid": 470,  "name": "Yesenia Doyon",  "age": 78,  "address": {  "number": 3641,  "street": "7th St.",  "city": "Seattle" },  "interests": [ "Databases", "Puzzles" ],  "children": [ {  "name": "Halley Doyon" }, {  "name": "Teisha Doyon",  "age": 33 }, {  "name": "Warren Doyon" } ] }
+{  "cid": 625,  "name": "Gale Marrazzo",  "age": 25,  "address": {  "number": 2307,  "street": "View St.",  "city": "San Jose" },  "interests": [ "Fishing", "Base Jumping", "Walking", "Cooking" ],  "children": [ {  "name": "Coleman Marrazzo" }, {  "name": "Frances Marrazzo" }, {  "name": "Camellia Marrazzo",  "age": 11 } ] }
+{  "cid": 72,  "name": "Clarissa Geraldes",  "age": 67,  "address": {  "number": 8248,  "street": "Park St.",  "city": "Los Angeles" },  "interests": [ "Cigars", "Walking", "Databases", "Video Games" ],  "children": [ {  "name": "Vina Geraldes",  "age": 51 } ] }
+{  "cid": 188,  "name": "Brynn Bendorf",  "age": 23,  "address": {  "number": 1168,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Skiing" ],  "children": [ {  "name": "Leesa Bendorf",  "age": 11 }, {  "name": "Daine Bendorf" } ] }
+{  "cid": 635,  "name": "Angelena Braegelmann",  "age": 36,  "address": {  "number": 4158,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Wine", "Skiing" ],  "children": [ {  "name": "Daisey Braegelmann",  "age": 18 }, {  "name": "Gaston Braegelmann",  "age": 19 }, {  "name": "Louella Braegelmann" }, {  "name": "Leonie Braegelmann" } ] }
+{  "cid": 595,  "name": "Samuel Brawdy",  "age": 28,  "address": {  "number": 453,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [ "Books", "Basketball" ],  "children": [ {  "name": "Marlen Brawdy",  "age": 14 }, {  "name": "Lorine Brawdy",  "age": 13 }, {  "name": "Brad Brawdy" } ] }
+{  "cid": 916,  "name": "Kris Mcmarlin",  "interests": [ "Movies", "Music", "Puzzles" ],  "children": [  ] }
+{  "cid": 101,  "name": "Meaghan Vandel",  "interests": [ "Music", "Base Jumping", "Books" ],  "children": [ {  "name": "Larissa Vandel" } ] }
+{  "cid": 393,  "name": "Rossana Monton",  "age": 34,  "address": {  "number": 4490,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Skiing", "Base Jumping" ],  "children": [ {  "name": "Glayds Monton" }, {  "name": "Lily Monton" }, {  "name": "Raina Monton" }, {  "name": "Hilma Monton" } ] }
+{  "cid": 857,  "name": "Kasie Fujioka",  "interests": [ "Skiing", "Cigars" ],  "children": [ {  "name": "Leontine Fujioka" }, {  "name": "Nga Fujioka",  "age": 21 }, {  "name": "Nathanael Fujioka",  "age": 27 } ] }
+{  "cid": 57,  "name": "Celestine Mac",  "interests": [ "Wine", "Computers", "Books" ],  "children": [ {  "name": "Kathyrn Mac",  "age": 44 } ] }
+{  "cid": 724,  "name": "Merle Bakula",  "interests": [  ],  "children": [ {  "name": "Margart Bakula",  "age": 49 }, {  "name": "Mathew Bakula",  "age": 36 } ] }
+{  "cid": 407,  "name": "Bebe Cotney",  "interests": [ "Books", "Tennis" ],  "children": [ {  "name": "Daren Cotney" }, {  "name": "Lady Cotney",  "age": 48 } ] }
+{  "cid": 611,  "name": "Evelyne Bassette",  "interests": [ "Coffee" ],  "children": [ {  "name": "Angla Bassette",  "age": 13 } ] }
+{  "cid": 460,  "name": "Jeraldine Choules",  "interests": [ "Fishing" ],  "children": [ {  "name": "Berneice Choules",  "age": 16 }, {  "name": "Jaime Choules",  "age": 21 }, {  "name": "Li Choules",  "age": 20 }, {  "name": "Leah Choules" } ] }
+{  "cid": 120,  "name": "Jan Gianandrea",  "interests": [ "Databases", "Movies", "Cigars" ],  "children": [ {  "name": "Keesha Gianandrea" }, {  "name": "Vashti Gianandrea",  "age": 35 }, {  "name": "Larry Gianandrea",  "age": 29 } ] }
+{  "cid": 81,  "name": "Lavonda Manford",  "age": 87,  "address": {  "number": 2423,  "street": "Main St.",  "city": "San Jose" },  "interests": [  ],  "children": [  ] }
+{  "cid": 421,  "name": "Rubye Dillabough",  "age": 55,  "address": {  "number": 6980,  "street": "View St.",  "city": "Sunnyvale" },  "interests": [ "Squash" ],  "children": [ {  "name": "Hyacinth Dillabough",  "age": 19 }, {  "name": "Arie Dillabough" } ] }
+{  "cid": 875,  "name": "Ramon Crepps",  "interests": [ "Coffee", "Movies", "Skiing" ],  "children": [ {  "name": "Elisha Crepps" } ] }
+{  "cid": 842,  "name": "Omega Vanhoozer",  "age": 67,  "address": {  "number": 7806,  "street": "View St.",  "city": "Portland" },  "interests": [ "Music", "Walking", "Bass", "Wine" ],  "children": [ {  "name": "Lavina Vanhoozer" }, {  "name": "Mike Vanhoozer" } ] }
+{  "cid": 831,  "name": "Raina Rys",  "age": 62,  "address": {  "number": 7048,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [ "Walking" ],  "children": [ {  "name": "Ezra Rys" }, {  "name": "Carl Rys" }, {  "name": "Loraine Rys" } ] }
+{  "cid": 950,  "name": "Young Bayn",  "interests": [  ],  "children": [ {  "name": "Evangeline Bayn",  "age": 38 }, {  "name": "Darcy Bayn",  "age": 45 }, {  "name": "Rosita Bayn" }, {  "name": "Austin Bayn",  "age": 46 } ] }
+{  "cid": 107,  "name": "Abigail Niemiec",  "age": 87,  "address": {  "number": 39,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Tennis", "Databases", "Skiing", "Music" ],  "children": [ {  "name": "Cecil Niemiec",  "age": 66 } ] }
+{  "cid": 702,  "name": "Lane Krog",  "age": 50,  "address": {  "number": 1646,  "street": "Lake St.",  "city": "Mountain View" },  "interests": [ "Running" ],  "children": [ {  "name": "Carri Krog" }, {  "name": "Sage Krog" }, {  "name": "Bronwyn Krog" } ] }
+{  "cid": 764,  "name": "Nakita Sharlow",  "interests": [ "Databases", "Basketball", "Cigars", "Base Jumping" ],  "children": [ {  "name": "Della Sharlow",  "age": 52 }, {  "name": "Horacio Sharlow",  "age": 22 }, {  "name": "Samual Sharlow" } ] }
+{  "cid": 829,  "name": "Donnette Lebel",  "interests": [ "Tennis", "Coffee", "Running", "Fishing" ],  "children": [ {  "name": "Junior Lebel" } ] }
+{  "cid": 370,  "name": "Shonta Furby",  "age": 18,  "address": {  "number": 5792,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [ "Databases" ],  "children": [ {  "name": "Raleigh Furby" }, {  "name": "Britta Furby" }, {  "name": "Gay Furby" }, {  "name": "Elenor Furby" } ] }
+{  "cid": 697,  "name": "Claud Coffel",  "age": 72,  "address": {  "number": 8483,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Katheleen Coffel",  "age": 38 }, {  "name": "Tashina Coffel" } ] }
+{  "cid": 604,  "name": "Clyde Remak",  "interests": [ "Tennis", "Tennis", "Books", "Computers" ],  "children": [ {  "name": "Ward Remak" } ] }
+{  "cid": 342,  "name": "Maxima Cason",  "age": 67,  "address": {  "number": 6644,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Cigars", "Tennis", "Puzzles", "Basketball" ],  "children": [ {  "name": "Alba Cason" } ] }
+{  "cid": 602,  "name": "Clyde Salada",  "age": 59,  "address": {  "number": 8316,  "street": "7th St.",  "city": "Sunnyvale" },  "interests": [ "Movies", "Skiing", "Cooking" ],  "children": [  ] }
+{  "cid": 84,  "name": "Huong Kachel",  "interests": [ "Music", "Tennis", "Base Jumping" ],  "children": [ {  "name": "Katlyn Kachel",  "age": 40 }, {  "name": "Sherman Kachel" }, {  "name": "Susana Kachel",  "age": 32 } ] }
+{  "cid": 784,  "name": "Omar Hasen",  "interests": [ "Movies" ],  "children": [ {  "name": "Hugh Hasen" } ] }
+{  "cid": 451,  "name": "Lelia Sondelski",  "age": 60,  "address": {  "number": 4044,  "street": "Park St.",  "city": "Portland" },  "interests": [ "Books", "Squash", "Walking" ],  "children": [  ] }
+{  "cid": 413,  "name": "Maurice Landrie",  "interests": [ "Computers", "Coffee" ],  "children": [ {  "name": "Gail Landrie",  "age": 37 }, {  "name": "Carylon Landrie" }, {  "name": "Allen Landrie",  "age": 16 }, {  "name": "Andreas Landrie" } ] }
+{  "cid": 156,  "name": "Bobbye Kauppi",  "age": 79,  "address": {  "number": 2051,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Base Jumping", "Cigars", "Movies" ],  "children": [  ] }
+{  "cid": 255,  "name": "Cherri Piegaro",  "age": 64,  "address": {  "number": 3802,  "street": "Oak St.",  "city": "Sunnyvale" },  "interests": [  ],  "children": [ {  "name": "Elwood Piegaro" } ] }
+{  "cid": 343,  "name": "Kaylee Ozaine",  "age": 78,  "address": {  "number": 3367,  "street": "Washington St.",  "city": "Seattle" },  "interests": [  ],  "children": [ {  "name": "Darwin Ozaine",  "age": 35 }, {  "name": "Anne Ozaine",  "age": 13 }, {  "name": "Kenneth Ozaine" }, {  "name": "Pat Ozaine",  "age": 53 } ] }
+{  "cid": 898,  "name": "Thao Seufert",  "age": 78,  "address": {  "number": 3529,  "street": "Hill St.",  "city": "Seattle" },  "interests": [ "Bass", "Squash", "Coffee" ],  "children": [ {  "name": "Classie Seufert" } ] }
+{  "cid": 301,  "name": "Cherry Steenwyk",  "age": 88,  "address": {  "number": 4138,  "street": "Lake St.",  "city": "San Jose" },  "interests": [ "Movies" ],  "children": [ {  "name": "Toccara Steenwyk",  "age": 66 }, {  "name": "Tari Steenwyk" }, {  "name": "Lawanna Steenwyk" }, {  "name": "Ossie Steenwyk",  "age": 26 } ] }
+{  "cid": 465,  "name": "Rey Arango",  "age": 68,  "address": {  "number": 1788,  "street": "View St.",  "city": "Los Angeles" },  "interests": [ "Tennis" ],  "children": [  ] }
+{  "cid": 775,  "name": "Jerry Lowing",  "age": 62,  "address": {  "number": 1055,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Puzzles", "Books", "Running", "Bass" ],  "children": [ {  "name": "Emmitt Lowing" }, {  "name": "Kimberly Lowing" } ] }
+{  "cid": 340,  "name": "Erick Faiola",  "interests": [ "Coffee" ],  "children": [ {  "name": "Marquita Faiola" }, {  "name": "Tasia Faiola" }, {  "name": "Micheal Faiola",  "age": 24 }, {  "name": "Salvatore Faiola" } ] }
+{  "cid": 577,  "name": "Alejandro Oblinger",  "interests": [ "Movies", "Movies" ],  "children": [ {  "name": "Tenesha Oblinger",  "age": 56 }, {  "name": "Loni Oblinger",  "age": 12 }, {  "name": "Sherryl Oblinger" } ] }
+{  "cid": 838,  "name": "Karan Aharon",  "age": 88,  "address": {  "number": 8033,  "street": "Washington St.",  "city": "Portland" },  "interests": [ "Computers", "Movies", "Walking" ],  "children": [ {  "name": "Matha Aharon",  "age": 16 } ] }
+{  "cid": 235,  "name": "Orpha Craycraft",  "interests": [ "Skiing", "Squash" ],  "children": [  ] }
+{  "cid": 868,  "name": "Berry Steward",  "age": 12,  "address": {  "number": 8594,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Fishing", "Tennis", "Movies", "Video Games" ],  "children": [ {  "name": "Mason Steward" }, {  "name": "Yoshiko Steward" }, {  "name": "Toni Steward" } ] }
+{  "cid": 153,  "name": "Randy Hueso",  "age": 11,  "address": {  "number": 1957,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Computers", "Wine", "Databases", "Walking" ],  "children": [  ] }
+{  "cid": 82,  "name": "Gloria Junkins",  "interests": [ "Basketball" ],  "children": [  ] }
+{  "cid": 990,  "name": "Javier Searer",  "age": 38,  "address": {  "number": 3817,  "street": "Park St.",  "city": "Sunnyvale" },  "interests": [ "Databases", "Cigars", "Fishing", "Basketball" ],  "children": [ {  "name": "Griselda Searer",  "age": 13 }, {  "name": "Josephina Searer",  "age": 27 }, {  "name": "Brice Searer",  "age": 22 }, {  "name": "Kelly Searer" } ] }
+{  "cid": 89,  "name": "Calandra Hedden",  "age": 33,  "address": {  "number": 1231,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Wine" ],  "children": [ {  "name": "Damien Hedden",  "age": 19 } ] }
+{  "cid": 171,  "name": "Eddie Shebchuk",  "age": 86,  "address": {  "number": 3304,  "street": "Lake St.",  "city": "Portland" },  "interests": [ "Books" ],  "children": [ {  "name": "Harmony Shebchuk" } ] }
+{  "cid": 513,  "name": "Marianna Gortman",  "age": 49,  "address": {  "number": 927,  "street": "Cedar St.",  "city": "San Jose" },  "interests": [ "Databases", "Databases" ],  "children": [  ] }
+{  "cid": 907,  "name": "Princess Sudol",  "age": 73,  "address": {  "number": 9770,  "street": "Oak St.",  "city": "San Jose" },  "interests": [ "Computers", "Base Jumping" ],  "children": [ {  "name": "Bronwyn Sudol",  "age": 22 }, {  "name": "Judith Sudol" } ] }
+{  "cid": 627,  "name": "Fernande Ede",  "age": 75,  "address": {  "number": 9316,  "street": "Cedar St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Rebeca Ede" }, {  "name": "Raymond Ede",  "age": 57 } ] }
+{  "cid": 647,  "name": "Jodi Dearson",  "interests": [ "Fishing", "Movies" ],  "children": [  ] }
+{  "cid": 111,  "name": "Eddy Ortea",  "age": 16,  "address": {  "number": 6874,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Shera Ortea" } ] }
+{  "cid": 830,  "name": "Laurice Halik",  "interests": [ "Puzzles", "Tennis", "Tennis", "Books" ],  "children": [ {  "name": "Bobby Halik" }, {  "name": "Stormy Halik" } ] }
+{  "cid": 331,  "name": "Willena Provenza",  "age": 43,  "address": {  "number": 6742,  "street": "Main St.",  "city": "Portland" },  "interests": [ "Basketball" ],  "children": [ {  "name": "Alesha Provenza",  "age": 32 }, {  "name": "Marty Provenza" }, {  "name": "Lindy Provenza",  "age": 21 }, {  "name": "Junita Provenza" } ] }
+{  "cid": 849,  "name": "Kristen Zapalac",  "age": 14,  "address": {  "number": 4087,  "street": "Lake St.",  "city": "Sunnyvale" },  "interests": [ "Wine", "Cooking", "Running", "Computers" ],  "children": [  ] }
+{  "cid": 700,  "name": "Suk Blondin",  "interests": [ "Wine" ],  "children": [ {  "name": "Brenton Blondin" }, {  "name": "Charlotte Blondin" }, {  "name": "Eldon Blondin",  "age": 10 }, {  "name": "Leanne Blondin" } ] }
+{  "cid": 481,  "name": "Leana Revera",  "interests": [ "Running", "Skiing" ],  "children": [ {  "name": "Marquita Revera" } ] }
+{  "cid": 306,  "name": "Laurie Tuff",  "interests": [ "Computers", "Base Jumping", "Bass", "Basketball" ],  "children": [ {  "name": "Sharie Tuff" }, {  "name": "Ollie Tuff",  "age": 53 }, {  "name": "Gonzalo Tuff" }, {  "name": "Thomas Tuff" } ] }
+{  "cid": 533,  "name": "Trinity Urquidez",  "interests": [  ],  "children": [ {  "name": "Corrine Urquidez",  "age": 29 }, {  "name": "Markita Urquidez",  "age": 19 }, {  "name": "Danette Urquidez" } ] }
+{  "cid": 968,  "name": "Alix Levier",  "age": 44,  "address": {  "number": 7241,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [ "Databases", "Fishing", "Wine" ],  "children": [ {  "name": "Florentina Levier" }, {  "name": "Hyon Levier" }, {  "name": "Dannielle Levier" } ] }
+{  "cid": 834,  "name": "Luvenia Grandstaff",  "interests": [ "Squash" ],  "children": [ {  "name": "Joleen Grandstaff",  "age": 28 }, {  "name": "Elvera Grandstaff" }, {  "name": "Leonia Grandstaff",  "age": 35 }, {  "name": "Jaclyn Grandstaff",  "age": 28 } ] }
+{  "cid": 129,  "name": "Marisha Canzoneri",  "age": 84,  "address": {  "number": 5507,  "street": "View St.",  "city": "Mountain View" },  "interests": [ "Music", "Databases", "Walking", "Walking" ],  "children": [  ] }
+{  "cid": 735,  "name": "Lonnie Bechel",  "age": 36,  "address": {  "number": 592,  "street": "Main St.",  "city": "Sunnyvale" },  "interests": [ "Walking", "Cigars", "Squash", "Wine" ],  "children": [  ] }
+{  "cid": 358,  "name": "Fredricka Krum",  "interests": [  ],  "children": [ {  "name": "Darrick Krum" }, {  "name": "Julieann Krum" }, {  "name": "Sun Krum" }, {  "name": "Rosamaria Krum",  "age": 16 } ] }
+{  "cid": 937,  "name": "Annika Pauline",  "age": 78,  "address": {  "number": 8563,  "street": "Hill St.",  "city": "Los Angeles" },  "interests": [  ],  "children": [ {  "name": "Mikki Pauline",  "age": 34 } ] }
+{  "cid": 183,  "name": "Ladawn Vyas",  "age": 64,  "address": {  "number": 2663,  "street": "View St.",  "city": "Portland" },  "interests": [  ],  "children": [  ] }
+{  "cid": 738,  "name": "Josphine Rohrer",  "age": 75,  "address": {  "number": 862,  "street": "Main St.",  "city": "Los Angeles" },  "interests": [ "Databases" ],  "children": [ {  "name": "Marvin Rohrer",  "age": 22 }, {  "name": "Wyatt Rohrer" }, {  "name": "Deloras Rohrer" } ] }
+{  "cid": 599,  "name": "Alva Molaison",  "age": 87,  "address": {  "number": 5974,  "street": "Washington St.",  "city": "Seattle" },  "interests": [ "Wine", "Squash" ],  "children": [ {  "name": "Milo Molaison",  "age": 39 } ] }
+{  "cid": 167,  "name": "Philomena Alsop",  "age": 45,  "address": {  "number": 9468,  "street": "7th St.",  "city": "Mountain View" },  "interests": [ "Cigars", "Walking", "Tennis", "Base Jumping" ],  "children": [ {  "name": "Antoinette Alsop",  "age": 13 }, {  "name": "Emile Alsop" } ] }
+{  "cid": 986,  "name": "Tennille Wikle",  "age": 78,  "address": {  "number": 3428,  "street": "View St.",  "city": "Portland" },  "interests": [ "Movies", "Databases", "Wine" ],  "children": [ {  "name": "Lourie Wikle" }, {  "name": "Laure Wikle" } ] }
+{  "cid": 96,  "name": "Mara Aument",  "age": 72,  "address": {  "number": 7709,  "street": "Hill St.",  "city": "Sunnyvale" },  "interests": [ "Cigars", "Cooking", "Movies" ],  "children": [ {  "name": "Leonardo Aument",  "age": 22 } ] }
+{  "cid": 130,  "name": "Kandis Hissem",  "interests": [ "Tennis" ],  "children": [ {  "name": "Arianna Hissem" }, {  "name": "Necole Hissem",  "age": 53 }, {  "name": "Manie Hissem" }, {  "name": "Deshawn Hissem",  "age": 27 } ] }
+{  "cid": 259,  "name": "Aurelio Darrigo",  "age": 45,  "address": {  "number": 1114,  "street": "Park St.",  "city": "San Jose" },  "interests": [ "Cooking", "Running" ],  "children": [ {  "name": "Leonard Darrigo",  "age": 22 }, {  "name": "Aron Darrigo" }, {  "name": "Pamelia Darrigo",  "age": 14 } ] }
+{  "cid": 221,  "name": "Delois Fiqueroa",  "interests": [  ],  "children": [ {  "name": "Cherri Fiqueroa" } ] }
+{  "cid": 207,  "name": "Phyliss Honda",  "age": 22,  "address": {  "number": 8387,  "street": "Lake St.",  "city": "Seattle" },  "interests": [ "Cooking", "Music", "Books" ],  "children": [ {  "name": "Bee Honda" }, {  "name": "Cyril Honda" }, {  "name": "Vertie Honda" } ] }
+{  "cid": 947,  "name": "Fernande Shogren",  "age": 10,  "address": {  "number": 3449,  "street": "Lake St.",  "city": "Los Angeles" },  "interests": [ "Cooking", "Puzzles", "Music", "Squash" ],  "children": [ {  "name": "Buford Shogren" }, {  "name": "Verla Shogren" }, {  "name": "Stefania Shogren" }, {  "name": "Annika Shogren" } ] }
+{  "cid": 368,  "name": "Tequila Scandalios",  "interests": [  ],  "children": [ {  "name": "Nilsa Scandalios" }, {  "name": "Kaye Scandalios",  "age": 23 }, {  "name": "Angelo Scandalios",  "age": 24 } ] }
+{  "cid": 930,  "name": "Kathie Gier",  "age": 37,  "address": {  "number": 5075,  "street": "Main St.",  "city": "Portland" },  "interests": [  ],  "children": [ {  "name": "Onie Gier",  "age": 16 } ] }
+{  "cid": 867,  "name": "Denise Dipiero",  "interests": [ "Basketball", "Cigars", "Cooking", "Running" ],  "children": [ {  "name": "Santa Dipiero" } ] }
+{  "cid": 552,  "name": "Marlena Humann",  "interests": [  ],  "children": [  ] }
+{  "cid": 126,  "name": "Grayce Keir",  "interests": [ "Wine" ],  "children": [ {  "name": "Antonia Keir",  "age": 25 } ] }
+{  "cid": 789,  "name": "Carli Notto",  "interests": [ "Cigars" ],  "children": [  ] }
+{  "cid": 967,  "name": "Melida Laliotis",  "interests": [ "Music", "Base Jumping", "Coffee", "Books" ],  "children": [ {  "name": "Lai Laliotis",  "age": 52 }, {  "name": "Jillian Laliotis",  "age": 11 } ] }
+{  "cid": 203,  "name": "Elke Mazurowski",  "age": 52,  "address": {  "number": 9276,  "street": "View St.",  "city": "Mountain View" },  "interests": [  ],  "children": [ {  "name": "Esta Mazurowski" }, {  "name": "Clarence Mazurowski",  "age": 14 } ] }
+{  "cid": 654,  "name": "Louis Laubersheimer",  "age": 76,  "address": {  "number": 8010,  "street": "7th St.",  "city": "San Jose" },  "interests": [ "Base Jumping", "Bass", "Cooking" ],  "children": [ {  "name": "Jewel Laubersheimer",  "age": 22 }, {  "name": "Toccara Laubersheimer",  "age": 45 }, {  "name": "Eve Laubersheimer" } ] }
diff --git a/asterix-app/data/spatial/spatialData.json b/asterix-app/data/spatial/spatialData.json
index 6f094ee..9c78064 100644
--- a/asterix-app/data/spatial/spatialData.json
+++ b/asterix-app/data/spatial/spatialData.json
@@ -1,19 +1,21 @@
-{"id": 1, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.2,7.0")}
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diff --git a/asterix-app/data/spatial/spatialDataNulls.json b/asterix-app/data/spatial/spatialDataNulls.json
new file mode 100644
index 0000000..fbc3cee
--- /dev/null
+++ b/asterix-app/data/spatial/spatialDataNulls.json
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+{"id": 5, "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("100.0,100.0 100.0,400.0 300.0,400.0 300.0,100.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 6, "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 1.0,7.0"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("3.1,1.0 2.9,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 7, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 4.0,7.1"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("3.0,1.0 3.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("3.0,6.0 5.0,7.0")}
+{"id": 8, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("-3.0,-3.0 -1.0,-3.0 -3.0,-5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 9, "point": point("5.0,1.0"), "kwds": "sign ahead", "line1": line("5.0,1.0 5.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 10, "point": point("2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.01,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 11, "point": point("4.9,0.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.9,0.1 4.9,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 12, "point": point("6.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.0,1.0 4.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 13, "point": point("5.0,5.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.0,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 14, "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 15, "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.1,1.0 5.1,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 16, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 17, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("0.0,6.0 0.0,0.0 3.0,0.0 4.0,1.0 6.0,1.0 8.0,0.0 12.0,0.0 13.0,2.0 8.0,2.0 8.0,4.0 11.0,4.0 11.0,6.0 6.0,6.0 4.0,3.0 2.0,6.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 18, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,3.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
+{"id": 19, "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,1.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
\ No newline at end of file
diff --git a/asterix-app/data/temporal/temporalData.json b/asterix-app/data/temporal/temporalData.json
new file mode 100644
index 0000000..5b3a0f5
--- /dev/null
+++ b/asterix-app/data/temporal/temporalData.json
@@ -0,0 +1,3 @@
+{"id": "001", "dateField": date("-2012-12-12"), "dateFieldPlus": date("0990-01-01"), "timeField": time("23:49:12.39Z"), "timeFieldPlus": time("03:23:12.2"), "datetimeField": datetime("2012-12-12T00:00:00.001"), "datetimeFieldPlus": datetime("-00130810T221015398"), "durationField": duration("P20Y19DT3H74M23.34S"), "durationFieldPlus": duration("-P2MT4M300.68S"), "intervalField": interval-datetime("2012-12-12T00:00:00.001,20130810T221015398") }
+{"id": "002", "timeField": time("12:12:12.219+08:00"), "timeField2": time("13:13:13.321-08:00"), "datetimeField": datetime("19201220T232918478-1200"), "intervalField": interval-time("12:29:30+08:00, 235959999-0800") }
+{"id": "003", "durationField": duration("-P27Y48DT2400H"), "datetimeField": datetime("-0290-03-23T00:59:48.999+07:00"), "intervalField": interval-date("-2012-03-17, 2013-04-01"), "intervalPlus": interval-time("19:23:32.328Z,23:20:20") }
\ No newline at end of file
diff --git a/asterix-app/data/temporal/temporalData.txt b/asterix-app/data/temporal/temporalData.txt
new file mode 100644
index 0000000..9ce94f5
--- /dev/null
+++ b/asterix-app/data/temporal/temporalData.txt
@@ -0,0 +1,4 @@
+001|-2012-12-12|23:49:12.39Z|3827-12-12T11:43:29.329|P20Y19DT3H74M23.34S
+002|1993-12-12|03:32:00|-2012-12-12T05:00:23.071|P20Y19D
+003|1839-03-12|12:30:49.382|1012-06-12T00:37:00|PT3H74M23.34S
+999|0003-11-02|23:19:32.382Z|2012-12-12T00:00:00.001|P20YT300H9.34S
diff --git a/asterix-app/data/twitter/obamatweets.adm b/asterix-app/data/twitter/obamatweets.adm
new file mode 100644
index 0000000..9720960
--- /dev/null
+++ b/asterix-app/data/twitter/obamatweets.adm
@@ -0,0 +1,12 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
+{ "id": "nc1:119", "username": "ToucanMall", "location": "", "text": "RT @Newitrsdotcom: I hope #Obama will win re-election... Other four years without meaningless #wars", "timestamp": "Thu Dec 06 16:53:09 PST 2012" }
diff --git a/asterix-app/data/twitter/tw_messages.adm b/asterix-app/data/twitter/tw_messages.adm
new file mode 100644
index 0000000..88f5e24
--- /dev/null
+++ b/asterix-app/data/twitter/tw_messages.adm
@@ -0,0 +1,10 @@
+{"tweetid":"1","tweetid-copy":"1","user":{"screen-name":"RollandEckhardstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Eckhardstein","followers_count":3311368},"sender-location":point("42.13,80.43"),"send-time":datetime("2005-12-05T21:06:41"),"send-time-copy":datetime("2005-12-05T21:06:41"),"referred-topics":{{"samsung","plan"}},"message-text":" love samsung the plan is amazing"}
+{"tweetid":"2","tweetid-copy":"2","user":{"screen-name":"RollandEckhardstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"David Eckhardstein","followers_count":3311368},"sender-location":point("28.86,70.44"),"send-time":datetime("2007-08-15T06:44:17"),"send-time-copy":datetime("2007-08-15T06:44:17"),"referred-topics":{{"sprint","voice-clarity"}},"message-text":" like sprint its voice-clarity is mind-blowing"}
+{"tweetid":"3","tweetid-copy":"3","user":{"screen-name":"RollandEckhard#500","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Hetfield","followers_count":3311368},"sender-location":point("39.84,86.48"),"send-time":datetime("2008-12-24T00:07:04"),"send-time-copy":datetime("2008-12-24T00:07:04"),"referred-topics":{{"verizon","voice-command"}},"message-text":" can't stand verizon its voice-command is terrible:("}
+{"tweetid":"4","tweetid-copy":"4","user":{"screen-name":"RollandEckhardstein#221","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Eckhardstinz","followers_count":3311368},"sender-location":point("27.67,87.32"),"send-time":datetime("2007-02-05T16:39:13"),"send-time-copy":datetime("2007-02-05T16:39:13"),"referred-topics":{{"t-mobile","customer-service"}},"message-text":" love t-mobile its customer-service is mind-blowing"}
+{"tweetid":"5","tweetid-copy":"5","user":{"screen-name":"RollandEcstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Eckhardst","followers_count":3311368},"sender-location":point("27.3,92.77"),"send-time":datetime("2010-09-12T06:15:28"),"send-time-copy":datetime("2010-09-12T06:15:28"),"referred-topics":{{"t-mobile","customization"}},"message-text":" like t-mobile the customization is amazing:)"}
+{"tweetid":"6","tweetid-copy":"6","user":{"screen-name":"Rollkhardstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Kirk Hammette ","followers_count":3311368},"sender-location":point("45.62,84.78"),"send-time":datetime("2012-01-23T06:23:13"),"send-time-copy":datetime("2012-01-23T06:23:13"),"referred-topics":{{"iphone","network"}},"message-text":" like iphone its network is awesome:)"}
+{"tweetid":"7","tweetid-copy":"7","user":{"screen-name":"andEckhardstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland khardstein","followers_count":3311368},"sender-location":point("44.12,81.46"),"send-time":datetime("2012-02-17T17:30:26"),"send-time-copy":datetime("2012-02-17T17:30:26"),"referred-topics":{{"t-mobile","network"}},"message-text":" hate t-mobile the network is bad"}
+{"tweetid":"8","tweetid-copy":"8","user":{"screen-name":"Rolltein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Ron Eckhardstein","followers_count":3311368},"sender-location":point("36.86,90.71"),"send-time":datetime("2009-03-12T13:18:04"),"send-time-copy":datetime("2009-03-12T13:18:04"),"referred-topics":{{"at&t","touch-screen"}},"message-text":" dislike at&t its touch-screen is OMG"}
+{"tweetid":"9","tweetid-copy":"9","user":{"screen-name":"Roldstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Eckdstein","followers_count":3311368},"sender-location":point("29.07,97.05"),"send-time":datetime("2012-08-15T20:19:46"),"send-time-copy":datetime("2012-08-15T20:19:46"),"referred-topics":{{"verizon","speed"}},"message-text":" hate verizon its speed is bad"}
+{"tweetid":"10","tweetid-copy":"10","user":{"screen-name":"Rolldstein#211","lang":"en","friends_count":3657079,"statuses_count":268,"name":"Rolland Eckhardstful","followers_count":3311368},"sender-location":point("46.94,93.98"),"send-time":datetime("2011-04-07T14:08:46"),"send-time-copy":datetime("2011-04-07T14:08:46"),"referred-topics":{{"t-mobile","signal"}},"message-text":" like t-mobile the signal is good"}
\ No newline at end of file
diff --git a/asterix-app/pom.xml b/asterix-app/pom.xml
index 03ee55b..e55231f 100644
--- a/asterix-app/pom.xml
+++ b/asterix-app/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-app</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -71,17 +71,17 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.7.2</version>
+				<version>2.8</version>
 				<configuration>
-					<!--
-						doesn't work from m2eclipse, currently
-						<additionalClasspathElements>
-						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement>
-						</additionalClasspathElements>
-					-->
+					<!-- doesn't work from m2eclipse, currently <additionalClasspathElements> 
+						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement> 
+						</additionalClasspathElements> -->
 					<forkMode>pertest</forkMode>
-					<argLine>-enableassertions -Xmx${test.heap.size}m -Dfile.encoding=UTF-8
-						-Djava.util.logging.config.file=src/test/resources/logging.properties</argLine>
+					<argLine>-enableassertions -Xmx${test.heap.size}m 
+						-Dfile.encoding=UTF-8
+						-Djava.util.logging.config.file=src/test/resources/logging.properties
+						-Xdebug
+						-Xrunjdwp:transport=dt_socket,server=y,address=8000,suspend=n</argLine>
 					<includes>
 						<include>**/*TestSuite.java</include>
 						<include>**/*Test.java</include>
@@ -128,22 +128,20 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-algebricks-compiler</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
 		<dependency>
+            <groupId>edu.uci.ics.hyracks</groupId>
+            <artifactId>hyracks-client</artifactId>
+        </dependency>
+		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-aql</artifactId>
 			<version>0.0.4-SNAPSHOT</version>
@@ -172,11 +170,56 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-common</artifactId>
+			<version>0.0.4-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
 			<groupId>com.kenai.nbpwr</groupId>
 			<artifactId>org-apache-commons-io</artifactId>
 			<version>1.3.1-201002241208</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-core</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-test</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>xerces</groupId>
+			<artifactId>xercesImpl</artifactId>
+			<version>2.9.1</version>
+			<type>jar</type>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>xalan</groupId>
+			<artifactId>xalan</artifactId>
+			<version>2.7.1</version>
+			<type>jar</type>
+			<scope>test</scope>
+		</dependency>
+                <dependency>
+                    <groupId>net.sourceforge.cobertura</groupId>
+                    <artifactId>cobertura</artifactId>
+                    <version>1.9.4</version>
+                </dependency>
+                <dependency>
+                	<groupId>edu.uci.ics.asterix</groupId>
+                	<artifactId>asterix-test-framework</artifactId>
+                	<version>0.0.4-SNAPSHOT</version>
+                	<scope>test</scope>
+                </dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java
deleted file mode 100644
index cad8760..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ADMCursor.java
+++ /dev/null
@@ -1,397 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.om.base.ABinary;
-import edu.uci.ics.asterix.om.base.ABitArray;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ACircle;
-import edu.uci.ics.asterix.om.base.ADate;
-import edu.uci.ics.asterix.om.base.ADateTime;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.ADuration;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.ALine;
-import edu.uci.ics.asterix.om.base.APoint;
-import edu.uci.ics.asterix.om.base.APoint3D;
-import edu.uci.ics.asterix.om.base.APolygon;
-import edu.uci.ics.asterix.om.base.ARecord;
-import edu.uci.ics.asterix.om.base.ARectangle;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.base.ATime;
-import edu.uci.ics.asterix.om.base.IACollection;
-import edu.uci.ics.asterix.om.base.IACursor;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * This class is the implementation of IADMCursor. This class supports iterating
- * over all objects in ASTERIX. All ASTERIX objects can be iterated over and
- * returned via the associated get<Type>() call.
- * 
- * @author zheilbron
- */
-public class ADMCursor implements IADMCursor {
-    protected IAObject currentObject;
-    protected IACursor collectionCursor;
-    private boolean readOnce;
-
-    public ADMCursor(IAObject currentObject) {
-        setCurrentObject(currentObject);
-    }
-
-    public boolean next() throws AQLJException {
-        if (collectionCursor != null) {
-            boolean next = collectionCursor.next();
-            if (next) {
-                currentObject = collectionCursor.get();
-            }
-            return next;
-        } else if (currentObject == null) {
-            return false;
-        } else {
-            if (!readOnce) {
-                readOnce = true;
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public void position(IADMCursor c) throws AQLJException {
-        ((ADMCursor) c).setCurrentObject(currentObject);
-    }
-
-    @Override
-    public void position(IADMCursor c, String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        ((ADMCursor) c).setCurrentObject(o);
-    }
-
-    private IAObject getObjectByField(String field) throws AQLJException {
-        ATypeTag tag = currentObject.getType().getTypeTag();
-        if (tag != ATypeTag.RECORD) {
-            throw new AQLJException("object of type " + tag + " has no fields");
-        }
-        ARecord curRecord = (ARecord) currentObject;
-        ARecordType t = curRecord.getType();
-        int idx = t.findFieldPosition(field);
-        if (idx == -1) {
-            return null;
-        }
-        IAObject o = curRecord.getValueByPos(idx);
-        return o;
-    }
-
-    public void setCurrentObject(IAObject o) {
-        readOnce = false;
-        currentObject = o;
-        if (currentObject != null) {
-            if (currentObject.getType() instanceof AbstractCollectionType) {
-                collectionCursor = ((IACollection) currentObject).getCursor();
-            }
-        }
-    }
-
-    private void checkTypeTag(IAObject o, ATypeTag expectedTag) throws AQLJException {
-        ATypeTag actualTag;
-        actualTag = o.getType().getTypeTag();
-
-        if (actualTag != expectedTag) {
-            throw new AQLJException("cannot get " + expectedTag + " when type is " + actualTag);
-        }
-    }
-
-    @Override
-    public ABinary getBinary() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BINARY);
-        return ((ABinary) currentObject);
-    }
-
-    @Override
-    public ABinary getBinary(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BINARY);
-        return (ABinary) o;
-    }
-
-    @Override
-    public ABitArray getBitArray() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BITARRAY);
-        return ((ABitArray) currentObject);
-    }
-
-    @Override
-    public ABitArray getBitArray(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BITARRAY);
-        return (ABitArray) o;
-    }
-
-    @Override
-    public ABoolean getBoolean() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.BOOLEAN);
-        return ((ABoolean) currentObject);
-    }
-
-    @Override
-    public ABoolean getBoolean(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.BOOLEAN);
-        return (ABoolean) o;
-    }
-
-    @Override
-    public ACircle getCircle() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.CIRCLE);
-        return ((ACircle) currentObject);
-    }
-
-    @Override
-    public ACircle getCircle(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.CIRCLE);
-        return (ACircle) o;
-    }
-
-    @Override
-    public ADate getDate() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DATE);
-        return ((ADate) currentObject);
-    }
-
-    @Override
-    public ADate getDate(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DATE);
-        return (ADate) o;
-    }
-
-    @Override
-    public ADateTime getDateTime() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DATETIME);
-        return ((ADateTime) currentObject);
-    }
-
-    @Override
-    public ADateTime getDateTime(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DATETIME);
-        return (ADateTime) o;
-    }
-
-    @Override
-    public ADouble getDouble() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DOUBLE);
-        return ((ADouble) currentObject);
-    }
-
-    @Override
-    public ADouble getDouble(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DOUBLE);
-        return (ADouble) o;
-    }
-
-    @Override
-    public ADuration getDuration() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.DURATION);
-        return ((ADuration) currentObject);
-    }
-
-    @Override
-    public ADuration getDuration(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.DURATION);
-        return (ADuration) o;
-    }
-
-    @Override
-    public AFloat getFloat() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.FLOAT);
-        return ((AFloat) currentObject);
-    }
-
-    @Override
-    public AFloat getFloat(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.FLOAT);
-        return (AFloat) o;
-    }
-
-    @Override
-    public AInt8 getInt8() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT8);
-        return ((AInt8) currentObject);
-    }
-
-    @Override
-    public AInt8 getInt8(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT8);
-        return (AInt8) o;
-    }
-
-    @Override
-    public AInt16 getInt16() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT16);
-        return ((AInt16) currentObject);
-    }
-
-    @Override
-    public AInt16 getInt16(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT16);
-        return (AInt16) o;
-    }
-
-    @Override
-    public AInt32 getInt32() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT32);
-        return ((AInt32) currentObject);
-    }
-
-    @Override
-    public AInt32 getInt32(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT32);
-        return (AInt32) o;
-    }
-
-    @Override
-    public AInt64 getInt64() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.INT64);
-        return ((AInt64) currentObject);
-    }
-
-    @Override
-    public AInt64 getInt64(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.INT64);
-        return (AInt64) o;
-    }
-
-    @Override
-    public ALine getLine() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.LINE);
-        return ((ALine) currentObject);
-    }
-
-    @Override
-    public ALine getLine(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.LINE);
-        return (ALine) o;
-    }
-
-    @Override
-    public APoint getPoint() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POINT);
-        return ((APoint) currentObject);
-    }
-
-    @Override
-    public APoint getPoint(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POINT);
-        return (APoint) o;
-    }
-
-    @Override
-    public APoint3D getPoint3D() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POINT3D);
-        return ((APoint3D) currentObject);
-    }
-
-    @Override
-    public APoint3D getPoint3D(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POINT3D);
-        return (APoint3D) o;
-    }
-
-    @Override
-    public APolygon getPolygon() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.POLYGON);
-        return ((APolygon) currentObject);
-    }
-
-    @Override
-    public APolygon getPolygon(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.POLYGON);
-        return (APolygon) o;
-    }
-
-    @Override
-    public ARectangle getRectangle() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.RECTANGLE);
-        return ((ARectangle) currentObject);
-    }
-
-    @Override
-    public ARectangle getRectangle(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.RECTANGLE);
-        return (ARectangle) o;
-    }
-
-    @Override
-    public AString getString() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.STRING);
-        return ((AString) currentObject);
-    }
-
-    @Override
-    public AString getString(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.STRING);
-        return (AString) o;
-    }
-
-    @Override
-    public ATime getTime() throws AQLJException {
-        checkTypeTag(currentObject, ATypeTag.TIME);
-        return ((ATime) currentObject);
-    }
-
-    @Override
-    public ATime getTime(String field) throws AQLJException {
-        IAObject o = getObjectByField(field);
-        checkTypeTag(o, ATypeTag.TIME);
-        return (ATime) o;
-    }
-
-    public IAType getType() {
-        if (currentObject != null) {
-            return currentObject.getType();
-        }
-        return null;
-    }
-
-    @Override
-    public IAObject get() {
-        return currentObject;
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java
deleted file mode 100644
index a1a077b..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJClientDriver.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * This class encapsulates the mechanism for creating a connection to an ASTERIX
- * server.
- * 
- * @author zheilbron
- */
-public class AQLJClientDriver {
-    /**
-     * Get a connection to the ASTERIX server.
-     * 
-     * @param host
-     *            the ip or hostname of the ASTERIX server
-     * @param port
-     *            the port of the ASTERIX server (default: 14600)
-     * @param dataverse
-     *            the name of the dataverse to use for any AQL statements
-     * @return an IAQLJConnection object representing the connection to ASTERIX
-     * @throws AQLJException
-     */
-    public static IAQLJConnection getConnection(String host, int port, String dataverse) throws AQLJException {
-        return new AQLJConnection(host, port, dataverse);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java
deleted file mode 100644
index c597450..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJConnection.java
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-
-/**
- * This class is the implementation of IAQLJConnection and is the means for
- * communication between a client and an ASTERIX server. The messages passed
- * through this connection conform to the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public class AQLJConnection implements IAQLJConnection {
-    private final String dataverse;
-    private final AQLJStream aqljStream;
-
-    public AQLJConnection(String host, int port, String dataverse) throws AQLJException {
-        this.dataverse = dataverse;
-
-        try {
-            aqljStream = new AQLJStream(host, port);
-        } catch (IOException e) {
-            throw new AQLJException("Could not connect to " + host + ":" + port);
-        }
-
-        startup();
-    }
-
-    private void startup() throws AQLJException {
-        sendStartupMessage(dataverse);
-        getStartupResponse();
-    }
-
-    private void sendStartupMessage(String dataverse) throws AQLJException {
-        try {
-            byte[] dvBytes = dataverse.getBytes("UTF-8");
-            // 4 for the message length, 1 for the message type, 2 for the
-            // string length
-            aqljStream.sendUnsignedInt32(4 + 1 + 2 + dvBytes.length);
-            aqljStream.sendChar(AQLJProtocol.STARTUP_MESSAGE);
-            aqljStream.sendInt16(dvBytes.length);
-            aqljStream.send(dvBytes);
-            aqljStream.flush();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    private void getStartupResponse() throws AQLJException {
-        try {
-            aqljStream.receiveUnsignedInt32();
-            int messageType = aqljStream.receiveChar();
-            switch (messageType) {
-                case AQLJProtocol.READY_MESSAGE:
-                    break;
-                case AQLJProtocol.ERROR_MESSAGE:
-                    String err = aqljStream.receiveString();
-                    throw new AQLJException(err);
-                default:
-                    throw new AQLJException("Error: unable to parse message from server");
-            }
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    @Override
-    public IAQLJResult execute(String stmt) throws AQLJException {
-        sendExecute(stmt);
-        return fetchResults();
-    }
-
-    private AQLJResult fetchResults() throws AQLJException {
-        long len;
-        int messageType;
-
-        ResultBuffer rb = null;
-        while (true) {
-            try {
-                len = aqljStream.receiveUnsignedInt32();
-                messageType = aqljStream.receiveChar();
-                switch (messageType) {
-                    case AQLJProtocol.DATA_MESSAGE:
-                        // DataRecord
-                        if (rb == null) {
-                            rb = new ResultBuffer();
-                        }
-                        rb.appendMessage(aqljStream, (int) (len - 5));
-                        break;
-                    case AQLJProtocol.EXECUTE_COMPLETE_MESSAGE:
-                        // ExecuteComplete
-                        return new AQLJResult(rb);
-                    case AQLJProtocol.ERROR_MESSAGE:
-                        // Error
-                        throw new AQLJException(aqljStream.receiveString());
-                    default:
-                        throw new AQLJException("Error: received unknown message type from server");
-                }
-            } catch (IOException e) {
-                throw new AQLJException(e);
-            }
-        }
-
-    }
-
-    private void sendExecute(String stmt) throws AQLJException {
-        try {
-            byte[] stmtBytes = stmt.getBytes("UTF-8");
-            // 4 for the message length, 1 for the message type, 2 for the
-            // string length
-            aqljStream.sendUnsignedInt32(4 + 1 + 2 + stmtBytes.length);
-            aqljStream.sendChar(AQLJProtocol.EXECUTE_MESSAGE);
-            aqljStream.sendInt16(stmtBytes.length);
-            aqljStream.send(stmtBytes);
-            aqljStream.flush();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        aqljStream.close();
-    }
-
-    @Override
-    public IADMCursor createADMCursor() {
-        return new ADMCursor(null);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java
deleted file mode 100644
index 63114ce..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/AQLJResult.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * This class is special type of ADMCursor in that it has a result buffer
- * associated with it. It can be thought of as the "base" cursor for some ADM
- * results.
- * 
- * @author zheilbron
- */
-public class AQLJResult extends ADMCursor implements IAQLJResult {
-    private final ResultBuffer resultBuffer;
-
-    public AQLJResult(ResultBuffer buffer) {
-        super(null);
-        this.resultBuffer = buffer;
-    }
-
-    @Override
-    public boolean next() throws AQLJException {
-        currentObject = resultBuffer.get();
-        if (currentObject == null) {
-            return false;
-        }
-        return true;
-    }
-
-    public void close() throws IOException {
-        resultBuffer.close();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java
deleted file mode 100644
index a7500c9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IADMCursor.java
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.om.base.ABinary;
-import edu.uci.ics.asterix.om.base.ABitArray;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ACircle;
-import edu.uci.ics.asterix.om.base.ADate;
-import edu.uci.ics.asterix.om.base.ADateTime;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.ADuration;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.ALine;
-import edu.uci.ics.asterix.om.base.APoint;
-import edu.uci.ics.asterix.om.base.APoint3D;
-import edu.uci.ics.asterix.om.base.APolygon;
-import edu.uci.ics.asterix.om.base.ARectangle;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.base.ATime;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.asterix.om.types.IAType;
-
-/**
- * The mechanism by which results are iterated over. Results from ASTERIX may
- * come in the form of a set of objects which may either be primitives (e.g.
- * int, string, ...), collections (e.g. ordered lists, unordered lists, ...),
- * records, or some combination thereof.
- * 
- * @author zheilbron
- */
-public interface IADMCursor {
-    public ABinary getBinary() throws AQLJException;
-
-    public ABinary getBinary(String field) throws AQLJException;
-
-    public ABitArray getBitArray() throws AQLJException;
-
-    public ABitArray getBitArray(String field) throws AQLJException;
-
-    public ABoolean getBoolean() throws AQLJException;
-
-    public ABoolean getBoolean(String field) throws AQLJException;
-
-    public ACircle getCircle() throws AQLJException;
-
-    public ACircle getCircle(String field) throws AQLJException;
-
-    public ADate getDate() throws AQLJException;
-
-    public ADate getDate(String field) throws AQLJException;
-
-    public ADateTime getDateTime() throws AQLJException;
-
-    public ADateTime getDateTime(String field) throws AQLJException;
-
-    public ADouble getDouble() throws AQLJException;
-
-    public ADouble getDouble(String field) throws AQLJException;
-
-    public ADuration getDuration() throws AQLJException;
-
-    public ADuration getDuration(String field) throws AQLJException;
-
-    public AFloat getFloat() throws AQLJException;
-
-    public AFloat getFloat(String field) throws AQLJException;
-
-    public AInt8 getInt8() throws AQLJException;
-
-    public AInt8 getInt8(String field) throws AQLJException;
-
-    public AInt16 getInt16() throws AQLJException;
-
-    public AInt16 getInt16(String field) throws AQLJException;
-
-    public AInt32 getInt32() throws AQLJException;
-
-    public AInt32 getInt32(String field) throws AQLJException;
-
-    public AInt64 getInt64() throws AQLJException;
-
-    public AInt64 getInt64(String field) throws AQLJException;
-
-    public ALine getLine() throws AQLJException;
-
-    public ALine getLine(String field) throws AQLJException;
-
-    public APoint getPoint() throws AQLJException;
-
-    public APoint getPoint(String field) throws AQLJException;
-
-    public APoint3D getPoint3D() throws AQLJException;
-
-    public APoint3D getPoint3D(String field) throws AQLJException;
-
-    public APolygon getPolygon() throws AQLJException;
-
-    public APolygon getPolygon(String field) throws AQLJException;
-
-    public ARectangle getRectangle() throws AQLJException;
-
-    public ARectangle getRectangle(String field) throws AQLJException;
-
-    public AString getString(String field) throws AQLJException;
-
-    public AString getString() throws AQLJException;
-
-    public ATime getTime() throws AQLJException;
-
-    public ATime getTime(String field) throws AQLJException;
-
-    /**
-     * Advances the cursor to the next object
-     * 
-     * @return true if the cursor points to a an object
-     * @throws AQLJException
-     */
-    public boolean next() throws AQLJException;
-
-    /**
-     * Positions the cursor c on the object pointed to by this
-     * 
-     * @param c
-     *            the cursor to position
-     * @throws AQLJException
-     */
-    public void position(IADMCursor c) throws AQLJException;
-
-    /**
-     * Positions the cursor c on the object associated with the given field
-     * 
-     * @param c
-     *            the cursor to position
-     * @param field
-     *            the field name
-     * @throws AQLJException
-     */
-    public void position(IADMCursor c, String field) throws AQLJException;
-
-    /**
-     * Returns the type of the current object being pointed at, which may be
-     * null.
-     * 
-     * @return the type of the current object
-     */
-    public IAType getType();
-
-    /**
-     * Returns the current object being pointed at, which may be null.
-     * 
-     * @return the current object
-     */
-    public IAObject get();
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java
deleted file mode 100644
index 8fdf59d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJConnection.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import java.io.IOException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-
-/**
- * The connection (session) that serves as the context for communicating with
- * ASTERIX.
- * 
- * @author zheilbron
- */
-public interface IAQLJConnection {
-    /**
-     * Execute an AQL statement that returns an IAQLJResult. The IAQLJResult
-     * will contain all associated results of the AQL statement.
-     * 
-     * @param stmt
-     *            the AQL statement
-     * @return the results of the AQL statement as an IAQLJResult
-     * @throws AQLJException
-     */
-    public IAQLJResult execute(String stmt) throws AQLJException;
-
-    /**
-     * Create a cursor to iterate over results
-     * 
-     * @return an unpositioned cursor
-     */
-    public IADMCursor createADMCursor();
-
-    /**
-     * Close the connection with the server.
-     */
-    public void close() throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java
deleted file mode 100644
index b28b3c6..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/IAQLJResult.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import java.io.IOException;
-
-/**
- * The results associated with an AQL statement.
- * 
- * @author zheilbron
- */
-public interface IAQLJResult extends IADMCursor {
-    /**
-     * Close the cursor and discard any associated results.
-     * It's important to ensure that this method is called in order to free up
-     * the associated result buffer.
-     */
-    public void close() throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java
deleted file mode 100644
index 9fddad5..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/client/ResultBuffer.java
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.client;
-
-import java.io.DataInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-
-/**
- * This class supports the buffering of results that are received from the
- * server. The results are buffered completely to a file on disk. The results
- * that are sent back should contain a serde in order to read the results back
- * in. To see the expected format refer to {@link edu.uci.ics.algebricks.runtime.hyracks.writers.SerializedDataWriterFactory} .
- * 
- * @author zheilbron
- */
-public class ResultBuffer {
-    private static final Logger LOGGER = Logger.getLogger(ResultBuffer.class.getName());
-
-    private static final int BUF_SIZE = 8192;
-
-    private final byte[] buffer;
-    private final File tmpFile;
-    private final FileOutputStream fos;
-    private final FileInputStream fis;
-    private final DataInputStream dis;
-
-    private ObjectInputStream ois;
-    private ISerializerDeserializer serde;
-
-    public ResultBuffer() throws IOException {
-        buffer = new byte[BUF_SIZE];
-        tmpFile = File.createTempFile("aqlj", null, new File(System.getProperty("java.io.tmpdir")));
-        fos = new FileOutputStream(tmpFile);
-        fis = new FileInputStream(tmpFile);
-        dis = new DataInputStream(fis);
-        serde = null;
-    }
-
-    private RecordDescriptor getRecordDescriptor() throws AQLJException {
-        RecordDescriptor rd;
-        try {
-            ois = new ObjectInputStream(fis);
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        }
-        try {
-            rd = (RecordDescriptor) ois.readObject();
-        } catch (IOException e) {
-            throw new AQLJException(e);
-        } catch (ClassNotFoundException e) {
-            throw new AQLJException(e);
-        }
-        return rd;
-    }
-
-    public IAObject get() throws AQLJException {
-        Object o;
-
-        if (serde == null) {
-            serde = getRecordDescriptor().getFields()[0];
-        }
-
-        try {
-            o = serde.deserialize(dis);
-        } catch (HyracksDataException e) {
-            // this is expected behavior... we know when we've reached the end
-            // of the
-            // results when a EOFException (masked by the HyracksDataException)
-            // is thrown
-            o = null;
-        }
-
-        return (IAObject) o;
-    }
-
-    public void appendMessage(AQLJStream aqljStream, long len) throws IOException {
-        long pos = 0;
-        long read = 0;
-        long remaining = 0;
-
-        while (pos < len) {
-            remaining = len - pos;
-            read = remaining > BUF_SIZE ? BUF_SIZE : remaining;
-            aqljStream.receive(buffer, 0, (int) read);
-            pos += read;
-            fos.write(buffer, 0, (int) read);
-        }
-    }
-
-    public void close() throws IOException {
-        // remove the file!
-        if (tmpFile.exists()) {
-            tmpFile.delete();
-        }
-        fos.close();
-        fis.close();
-        dis.close();
-        if (ois != null) {
-            ois.close();
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java
deleted file mode 100644
index 7c19a56..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJException.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.common;
-
-/**
- * This is the base (and currently the only) exception class for AQLJ.
- * 
- * @author zheilbron
- */
-public class AQLJException extends Exception {
-    private static final long serialVersionUID = 1L;
-
-    public AQLJException(String message) {
-        super(message);
-    }
-
-    public AQLJException(String message, Throwable cause) {
-        super(message, cause);
-    }
-
-    public AQLJException(Throwable cause) {
-        super(cause);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java
deleted file mode 100644
index 83ef0e5..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJProtocol.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.common;
-
-/**
- * This class provides constants for message types in the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public abstract class AQLJProtocol {
-    public static final char STARTUP_MESSAGE = 'S';
-    public static final char EXECUTE_MESSAGE = 'X';
-    public static final char READY_MESSAGE = 'R';
-    public static final char ERROR_MESSAGE = 'E';
-    public static final char EXECUTE_COMPLETE_MESSAGE = 'C';
-    public static final char DATA_MESSAGE = 'D';
-    public static final char GET_RESULTS_MESSAGE = 'G';
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java
deleted file mode 100644
index c595284..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/common/AQLJStream.java
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.common;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.EOFException;
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * This class provides a clean mechanism for sending and receiving the data
- * types involved in the AQLJ protocol.
- * 
- * @author zheilbron
- */
-public class AQLJStream {
-    private static final int BUF_SIZE = 8192;
-
-    private final String host;
-    private final int port;
-    private final Socket connection;
-    private final BufferedInputStream aqljInput;
-    private final BufferedOutputStream aqljOutput;
-
-    private final byte[] int16Buf;
-    private final byte[] int32Buf;
-
-    public AQLJStream(String host, int port) throws IOException {
-        this.host = host;
-        this.port = port;
-
-        connection = new Socket(host, port);
-
-        aqljInput = new BufferedInputStream(connection.getInputStream(), BUF_SIZE);
-        aqljOutput = new BufferedOutputStream(connection.getOutputStream(), BUF_SIZE);
-
-        int16Buf = new byte[2];
-        int32Buf = new byte[4];
-    }
-
-    public AQLJStream(Socket sock) throws IOException {
-        this.host = null;
-        this.port = 0;
-
-        this.connection = sock;
-        aqljInput = new BufferedInputStream(connection.getInputStream(), BUF_SIZE);
-        aqljOutput = new BufferedOutputStream(connection.getOutputStream(), BUF_SIZE);
-
-        int16Buf = new byte[2];
-        int32Buf = new byte[4];
-    }
-
-    public String getHost() {
-        return host;
-    }
-
-    public int getPort() {
-        return port;
-    }
-
-    public Socket getSocket() {
-        return connection;
-    }
-
-    public void receive(byte[] buf, int off, int len) throws IOException {
-        int read;
-        int count = 0;
-        while (count < len) {
-            read = aqljInput.read(buf, off + count, len - count);
-            if (read < 0) {
-                throw new EOFException();
-            }
-            count += read;
-        }
-    }
-
-    public byte[] receive(int len) throws IOException {
-        byte[] result = new byte[len];
-        receive(result, 0, len);
-        return result;
-    }
-
-    public int receiveInt16() throws IOException {
-        if (aqljInput.read(int16Buf) != 2) {
-            throw new EOFException();
-        }
-        return (int16Buf[0] & 0xff) << 8 | (int16Buf[1] & 0xff);
-    }
-
-    public long receiveUnsignedInt32() throws IOException {
-        if (aqljInput.read(int32Buf) != 4) {
-            throw new EOFException();
-        }
-        return ((int32Buf[0] & 0xff) << 24 | (int32Buf[1] & 0xff) << 16 | (int32Buf[2] & 0xff) << 8 | (int32Buf[3] & 0xff)) & 0x00000000ffffffffl;
-    }
-
-    public int receiveChar() throws IOException {
-        int c = aqljInput.read();
-        if (c < 0) {
-            throw new EOFException();
-        }
-        return c;
-    }
-
-    public String receiveString() throws IOException {
-        int strlen = receiveInt16();
-        return new String(receive(strlen), "UTF8");
-    }
-
-    public void send(byte[] buf) throws IOException {
-        aqljOutput.write(buf);
-    }
-
-    public void send(byte[] buf, int off, int len) throws IOException {
-        aqljOutput.write(buf, off, len);
-    }
-
-    public void sendInt16(int val) throws IOException {
-        int16Buf[0] = (byte) (val >>> 8);
-        int16Buf[1] = (byte) (val);
-        aqljOutput.write(int16Buf);
-    }
-
-    public void sendUnsignedInt32(long val) throws IOException {
-        int32Buf[0] = (byte) (val >>> 24);
-        int32Buf[1] = (byte) (val >>> 16);
-        int32Buf[2] = (byte) (val >>> 8);
-        int32Buf[3] = (byte) (val);
-        aqljOutput.write(int32Buf);
-    }
-
-    public void sendChar(int c) throws IOException {
-        aqljOutput.write(c);
-    }
-
-    public void sendString(byte[] strBytes) throws IOException {
-        sendInt16(strBytes.length);
-        send(strBytes);
-    }
-
-    public void sendString(String str) throws IOException {
-        byte[] strBytes = str.getBytes("UTF8");
-        sendInt16(strBytes.length);
-        send(strBytes);
-    }
-
-    public void flush() throws IOException {
-        aqljOutput.flush();
-    }
-
-    public void close() throws IOException {
-        aqljInput.close();
-        aqljOutput.close();
-        connection.close();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
deleted file mode 100644
index 87e899e..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringReader;
-import java.net.Socket;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Set;
-import java.util.logging.Logger;
-
-import org.json.JSONException;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-import edu.uci.ics.asterix.api.common.APIFramework;
-import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.api.common.Job;
-import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
-import edu.uci.ics.asterix.aql.parser.AQLParser;
-import edu.uci.ics.asterix.aql.parser.ParseException;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.hyracks.bootstrap.AsterixNodeState;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-
-/**
- * This class is the client handler for the APIServer. The AQLJ protocol is used
- * for communicating with the client. The client, for example, may send a
- * message to execute an AQL statement. It is up to this class to process that
- * AQL statement and pass back the results, if any, to the client.
- * 
- * @author zheilbron
- */
-public class APIClientThread extends Thread {
-    private static final Logger LOGGER = Logger.getLogger(APIClientThread.class.getName());
-
-    private static final int RESULT_BUF_SIZE = 8192;
-
-    private final IHyracksClientConnection hcc;
-    private final ICCApplicationContext appContext;
-    private final AQLJStream clientStream;
-    private final String outputFilePath;
-    private final String outputNodeName;
-    private final String outputNodeIP;
-    private final String binaryOutputClause;
-
-    private AQLJStream nodeDataServerStream;
-    private int nodeDataServerPort;
-    private String dataverse;
-
-    public APIClientThread(IHyracksClientConnection hcc, Socket clientSocket, ICCApplicationContext appCtx)
-            throws IOException {
-        this.hcc = hcc;
-        clientStream = new AQLJStream(clientSocket);
-        this.appContext = appCtx;
-
-        // get the name of the first node controller that we find
-        // all query results will be written to this node
-        Map<String, Set<String>> nodeNameMap = new HashMap<String, Set<String>>();
-        try {
-            this.appContext.getCCContext().getIPAddressNodeMap(nodeNameMap);
-        } catch (Exception e) {
-            throw new IOException(" unable to obtain IP address node map", e);
-        }
-        outputNodeIP = (String) nodeNameMap.keySet().toArray()[0];
-        outputNodeName = (String) nodeNameMap.get(outputNodeIP).toArray()[0];
-
-        // get the port of the node data server that is running on the first nc
-        IAsterixStateProxy proxy = (IAsterixStateProxy) appCtx.getDistributedState();
-        nodeDataServerPort = ((AsterixNodeState) proxy.getAsterixNodeState(outputNodeName)).getAPINodeDataServerPort();
-        nodeDataServerStream = null;
-
-        // write the data into the output stores directory of the nc
-        // if output stores are unavailable (could they ever be?), then write to
-        // tmpdir which can be overridden
-        // Also, use milliseconds in path name of output file to differentiate
-        // queries
-        Map<String, String[]> storesMap = AsterixProperties.INSTANCE.getStores();
-        String[] outputStores = storesMap.get(outputNodeName);
-        if (outputStores.length > 0) {
-            outputFilePath = outputStores[0] + System.currentTimeMillis() + ".adm";
-        } else {
-            outputFilePath = System.getProperty("java.io.tmpdir") + File.pathSeparator + System.currentTimeMillis()
-                    + ".adm";
-        }
-
-        // the "write output..." clause is inserted into incoming AQL statements
-        binaryOutputClause = "write output to "
-                + outputNodeName
-                + ":\""
-                + outputFilePath
-                + "\" using \"edu.uci.ics.hyracks.algebricks.core.algebra.runtime.writers.SerializedDataWriterFactory\";";
-
-    }
-
-    private void startup() throws IOException {
-        int messageType;
-
-        clientStream.receiveUnsignedInt32();
-        messageType = clientStream.receiveChar();
-        dataverse = clientStream.receiveString();
-        if (messageType == AQLJProtocol.STARTUP_MESSAGE) {
-            // send Ready
-            sendReady();
-        } else {
-            // send Error
-            LOGGER.warning("Error: received message other than Startup. Exiting.");
-            String err = "startup failed: no Startup message received";
-            sendError(err);
-        }
-    }
-
-    public void run() {
-        String outputPath;
-        int messageType;
-
-        try {
-            // startup phase
-            startup();
-
-            // normal execution phase
-            while (true) {
-                // check if we should close
-                if (Thread.interrupted()) {
-                    close();
-                    return;
-                }
-
-                clientStream.receiveUnsignedInt32();
-                messageType = clientStream.receiveChar();
-                switch (messageType) {
-                    case AQLJProtocol.EXECUTE_MESSAGE:
-                        // Execute
-                        String query = clientStream.receiveString();
-                        String fullQuery = "use dataverse " + dataverse + ";\n" + binaryOutputClause + '\n' + query;
-
-                        try {
-                            outputPath = executeStatement(fullQuery);
-                        } catch (AQLJException e) {
-                            LOGGER.severe("Error occurred while executing query: " + fullQuery);
-                            LOGGER.severe(e.getMessage());
-                            sendError(e.getMessage());
-                            break;
-                        }
-
-                        if (outputPath == null) {
-                            // The query ran, but produced no results. This
-                            // means cardinality of the
-                            // result is 0 or "actions" were performed, where
-                            // actions are things like create
-                            // type, create dataset, etc.
-                            sendExecuteComplete();
-                        } else {
-                            // otherwise, there are some results, so send them
-                            // back to the client
-                            if (sendResults(outputPath)) {
-                                sendExecuteComplete();
-                            } else {
-                                String err = "Error: unable to retrieve results from " + outputNodeName;
-                                LOGGER.severe(err);
-                                sendError(err);
-                            }
-                        }
-                        break;
-                    default:
-                        String err = "Error: received unknown message of type " + (char) messageType;
-                        sendError(err);
-                        LOGGER.severe(err);
-                        close();
-                        return;
-                }
-            }
-        } catch (IOException e) {
-            // the normal path that is taken when exiting
-            close();
-            return;
-        }
-    }
-
-    private void close() {
-        try {
-            if (nodeDataServerStream != null) {
-                nodeDataServerStream.close();
-            }
-        } catch (IOException e) {
-            LOGGER.severe("Error closing NodeData AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-        try {
-            clientStream.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing client AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-
-    private String executeStatement(String stmt) throws IOException, AQLJException {
-        PrintWriter out = new PrintWriter(System.out);
-        AqlCompiledMetadataDeclarations metadata = null;
-        try {
-            AQLParser parser = new AQLParser(new StringReader(stmt));
-            Query q = (Query) parser.Statement();
-            SessionConfig pc = new SessionConfig(AsterixHyracksIntegrationUtil.DEFAULT_HYRACKS_CC_CLIENT_PORT, true,
-                    false, false, false, false, false, false);
-            pc.setGenerateJobSpec(true);
-
-            MetadataManager.INSTANCE.init();
-            if (q != null) {
-                String dataverse = APIFramework.compileDdlStatements(hcc, q, out, pc, DisplayFormat.TEXT);
-                Job[] dmlJobs = APIFramework.compileDmlStatements(dataverse, q, out, pc, DisplayFormat.TEXT);
-                APIFramework.executeJobArray(hcc, dmlJobs, out, DisplayFormat.TEXT);
-            }
-
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverse, q, parser.getVarCounter(), null, metadata, pc, out, DisplayFormat.TEXT, null);
-            JobSpecification spec = metadataAndSpec.second;
-            metadata = metadataAndSpec.first;
-            APIFramework.executeJobArray(hcc, new JobSpecification[] { spec }, out, DisplayFormat.TEXT);
-        } catch (ParseException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (AsterixException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (AlgebricksException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (JSONException e) {
-            e.printStackTrace();
-            throw new AQLJException(e);
-        } catch (Exception e) {
-            e.printStackTrace();
-            sendError(e.getMessage());
-        }
-
-        if (metadata == null) {
-            return null;
-        }
-
-        return metadata.getOutputFile().getLocalFile().getFile().getAbsolutePath();
-    }
-
-    private boolean sendResults(String path) throws IOException {
-        int messageType;
-        long len;
-        int sent;
-        int toSend;
-        byte[] buf = new byte[RESULT_BUF_SIZE];
-
-        if (nodeDataServerStream == null) {
-            nodeDataServerStream = new AQLJStream(outputNodeIP, nodeDataServerPort);
-        }
-        sendGetResults(nodeDataServerStream);
-
-        // forward data packets from the nodedataservers through this server to
-        // the client
-        while (true) {
-            len = nodeDataServerStream.receiveUnsignedInt32();
-            messageType = nodeDataServerStream.receiveChar();
-            switch ((char) messageType) {
-                case AQLJProtocol.DATA_MESSAGE:
-                    clientStream.sendUnsignedInt32(len);
-                    clientStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-                    len -= 5;
-                    sent = 0;
-                    while (sent < len) {
-                        len -= sent;
-                        toSend = (len > buf.length) ? buf.length : (int) len;
-                        nodeDataServerStream.receive(buf, 0, toSend);
-                        clientStream.send(buf, 0, toSend);
-                        sent += toSend;
-                    }
-                    clientStream.flush();
-                    break;
-                case AQLJProtocol.EXECUTE_COMPLETE_MESSAGE:
-                    nodeDataServerStream.close();
-                    nodeDataServerStream = null;
-                    return true;
-                default:
-                    nodeDataServerStream.close();
-                    nodeDataServerStream = null;
-                    return false;
-            }
-        }
-    }
-
-    private void sendGetResults(AQLJStream s) throws IOException {
-        byte[] pathBytes = outputFilePath.getBytes("UTF-8");
-        // 4 for the message length, 1 for the message type, 2 for the string
-        // length
-        s.sendUnsignedInt32(4 + 1 + 2 + pathBytes.length);
-        s.sendChar(AQLJProtocol.GET_RESULTS_MESSAGE);
-        s.sendString(outputFilePath);
-        s.flush();
-    }
-
-    private void sendReady() throws IOException {
-        // 4 for the message length and 1 for the message type (4 + 1 = 5)
-        clientStream.sendUnsignedInt32(5);
-        clientStream.sendChar(AQLJProtocol.READY_MESSAGE);
-        clientStream.flush();
-    }
-
-    private void sendError(String msg) throws IOException {
-        byte[] msgBytes = msg.getBytes("UTF-8");
-        // 4 for the message length, 1 for the message type, 2 for the string
-        // length
-        clientStream.sendUnsignedInt32(4 + 1 + 2 + msgBytes.length);
-        clientStream.sendChar(AQLJProtocol.ERROR_MESSAGE);
-        clientStream.sendInt16(msgBytes.length);
-        clientStream.send(msgBytes);
-        clientStream.flush();
-    }
-
-    private void sendExecuteComplete() throws IOException {
-        // 4 for the message length and 1 for the message type (4 + 1 = 5)
-        clientStream.sendUnsignedInt32(5);
-        clientStream.sendChar(AQLJProtocol.EXECUTE_COMPLETE_MESSAGE);
-        clientStream.flush();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java
deleted file mode 100644
index 682d774..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThreadFactory.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-
-/**
- * This class is a factory for client handler threads of type {@link APIClientThread} and is used in conjunction with {@link ThreadedServer}.
- * 
- * @author zheilbron
- */
-public class APIClientThreadFactory implements IClientThreadFactory {
-    private final ICCApplicationContext appContext;
-
-    private IHyracksClientConnection hcc;
-
-    public APIClientThreadFactory(ICCApplicationContext appContext) throws Exception {
-        this.appContext = appContext;
-        hcc = new HyracksConnection("localhost", appContext.getCCContext().getClusterControllerInfo()
-                .getClientNetPort());
-    }
-
-    @Override
-    public Thread createThread(Socket socket) throws IOException {
-        return new APIClientThread(hcc, socket, appContext);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java
deleted file mode 100644
index bca7f4d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/IClientThreadFactory.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * Implementing this interface allows a class such as {@link ThreadedServer} to
- * spawn a particular type of thread to handle some client connection.
- * 
- * @author zheilbron
- */
-public interface IClientThreadFactory {
-    public Thread createThread(Socket socket) throws IOException;
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java
deleted file mode 100644
index 0246fd9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThread.java
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.net.Socket;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.common.AQLJProtocol;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJStream;
-
-/**
- * This class handles data requests from the APIServer. When a query is executed
- * through the API, the output is written to the local disk of some NC. The
- * APIServer will contact that NC and ask for the results of the query to be
- * sent. This class handles such communication between the NC and APIServer.
- * 
- * @author zheilbron
- */
-public class NodeDataClientThread extends Thread {
-    private static final Logger LOGGER = Logger.getLogger(NodeDataClientThread.class.getName());
-
-    private static final int RESULT_BUFFER_SIZE = 8192;
-
-    private final AQLJStream aqljStream;
-
-    public NodeDataClientThread(Socket clientSocket) throws IOException {
-        aqljStream = new AQLJStream(clientSocket);
-    }
-
-    public void run() {
-        try {
-            getFile();
-        } catch (IOException e) {
-            LOGGER.severe("I/O error occurred over AQLJStream (socket)");
-            LOGGER.severe(e.getMessage());
-        } finally {
-            close();
-        }
-    }
-
-    private void getFile() throws IOException {
-        aqljStream.receiveUnsignedInt32();
-        int type = aqljStream.receiveChar();
-        if ((char) type != AQLJProtocol.GET_RESULTS_MESSAGE) {
-            return;
-        }
-
-        String path = aqljStream.receiveString();
-        File outputFile = new File(path);
-        FileInputStream fis = null;
-        try {
-            fis = new FileInputStream(outputFile);
-        } catch (FileNotFoundException e) {
-            LOGGER.warning("Error: requested file not found: " + path);
-            return;
-        }
-
-        byte[] buf = new byte[RESULT_BUFFER_SIZE];
-        long maxPayload = 0xffffffffL - 5; // 2^32 (max size of payload) - 5
-                                           // (header size)
-        long remainingTotal = outputFile.length();
-        long remainingInner = 0;
-        int sentTotal = 0;
-        int sentInner = 0;
-        int toSend = 0;
-
-        // the results may be large, so cram as much into a packet as possible
-        while (remainingTotal > maxPayload) {
-            aqljStream.sendUnsignedInt32(4 + 1 + maxPayload);
-            aqljStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-            sentInner = 0;
-            remainingInner = 0;
-            while (sentInner < maxPayload) {
-                remainingInner = maxPayload - sentInner;
-                toSend = fis.read(buf, 0, (remainingInner > buf.length) ? buf.length : (int) remainingInner);
-                sentInner += toSend;
-                aqljStream.send(buf, 0, toSend);
-            }
-            aqljStream.flush();
-            sentTotal += maxPayload;
-            remainingTotal -= sentTotal;
-        }
-
-        // send the remaining data
-        if (remainingTotal > 0) {
-            aqljStream.sendUnsignedInt32(4 + 1 + (int) remainingTotal);
-            aqljStream.sendChar(AQLJProtocol.DATA_MESSAGE);
-            sentInner = 0;
-            remainingInner = 0;
-            while (sentInner < remainingTotal) {
-                remainingInner = remainingTotal - sentInner;
-                toSend = fis.read(buf, 0, (remainingInner > buf.length) ? buf.length : (int) remainingInner);
-                sentInner += toSend;
-                aqljStream.send(buf, 0, toSend);
-            }
-            aqljStream.flush();
-        }
-        outputFile.delete();
-        aqljStream.sendUnsignedInt32(5);
-        aqljStream.sendChar(AQLJProtocol.EXECUTE_COMPLETE_MESSAGE);
-        aqljStream.flush();
-    }
-
-    private void close() {
-        try {
-            aqljStream.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing AQLJStream");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java
deleted file mode 100644
index 22efa89..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/NodeDataClientThreadFactory.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.Socket;
-
-/**
- * This class is a factory for client handler threads of type {@link NodeDataClientThread} and is used in conjunction with {@link ThreadedServer}.
- * 
- * @author zheilbron
- */
-public class NodeDataClientThreadFactory implements IClientThreadFactory {
-    @Override
-    public Thread createThread(Socket socket) throws IOException {
-        return new NodeDataClientThread(socket);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java
deleted file mode 100644
index 573d6a3..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/ThreadedServer.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.api.aqlj.server;
-
-import java.io.IOException;
-import java.net.ServerSocket;
-import java.net.Socket;
-import java.net.SocketException;
-import java.util.logging.Logger;
-
-/**
- * This server is a multithreaded server that spawns one connection per client
- * up to MAX_CLIENTS total clients. The type of thread spawned to handle each
- * client request is delegated to a client thread factory that implements the
- * IClientThreadFactory interface.
- * NOTE: The "BE" in logging messages stands for "back-end". This is to
- * differentiate from the "FE" or "front-end" when reviewing log messages.
- * 
- * @author zheilbron
- */
-public class ThreadedServer extends Thread {
-    private static Logger LOGGER = Logger.getLogger(ThreadedServer.class.getName());
-
-    private static final int MAX_CLIENTS = 10;
-
-    private final int port;
-    private final IClientThreadFactory factory;
-
-    private ServerSocket serverSocket;
-    private Socket clientSocket;
-    private Socket[] clientSockets;
-    private Thread[] threads;
-
-    public ThreadedServer(int port, IClientThreadFactory factory) {
-        this.port = port;
-        this.factory = factory;
-        this.clientSockets = new Socket[MAX_CLIENTS];
-        this.threads = new Thread[MAX_CLIENTS];
-        this.clientSocket = null;
-    }
-
-    public void run() {
-        try {
-            serverSocket = new ServerSocket(port);
-        } catch (IOException e) {
-            LOGGER.severe("Error listening on port: " + port);
-            LOGGER.severe(e.getMessage());
-            return;
-        }
-        LOGGER.info("Server started. Listening on port: " + port);
-
-        while (true) {
-            try {
-                clientSocket = serverSocket.accept();
-            } catch (SocketException e) {
-                // This is the normal path the server will take when exiting.
-                //
-                // In order to close the server down properly, the
-                // serverSocket.accept() call must
-                // be interrupted. The only way to interrupt the
-                // serverSocket.accept() call in the loop
-                // above is by calling serverSocket.close() (as is done in the
-                // ThreadedServer.shutdown() method
-                // below). The serverSocket.accept() then throws a
-                // SocketException, so we catch it here
-                // and assume that ThreadedServer.shutdown() was called.
-
-                return;
-            } catch (IOException e) {
-                LOGGER.severe("Failed to accept() connection");
-                LOGGER.severe(e.getMessage());
-            }
-
-            for (int i = 0; i < threads.length; i++) {
-                if (threads[i] == null || !threads[i].isAlive()) {
-                    try {
-                        threads[i] = factory.createThread(clientSocket);
-                    } catch (IOException e) {
-                        LOGGER.severe("Failed to create client handler thread");
-                        LOGGER.severe(e.getMessage());
-                    }
-                    clientSockets[i] = clientSocket;
-                    threads[i].start();
-                    clientSocket = null;
-                    break;
-                }
-            }
-
-            // setting the clientSocket to null is an indicator the there was
-            // room for the
-            // connection (i.e. the number of clients < MAX_CLIENTS). If it is
-            // not set, then
-            // there was no room for the connection, so the client is dropped.
-            if (clientSocket != null) {
-                try {
-                    clientSocket.close();
-                } catch (IOException e) {
-                    LOGGER.severe("Error closing (dropped) client socket.");
-                    LOGGER.severe(e.getMessage());
-                }
-                LOGGER.warning("Client was dropped. Maximum number of connections reached!");
-            }
-        }
-    }
-
-    public void shutdown() {
-        try {
-            serverSocket.close();
-        } catch (IOException e) {
-            LOGGER.severe("Error closing server socket.");
-            LOGGER.severe(e.getMessage());
-        }
-
-        try {
-            for (int i = 0; i < threads.length; i++) {
-                if (threads[i] != null && threads[i].isAlive()) {
-                    clientSockets[i].close();
-                    threads[i].interrupt();
-                }
-            }
-        } catch (IOException e) {
-            LOGGER.severe("Error closing client socket.");
-            LOGGER.severe(e.getMessage());
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
index 13c904e..862c701 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.api.common;
 
 import java.io.PrintWriter;
@@ -8,11 +22,11 @@
 import org.json.JSONException;
 
 import edu.uci.ics.asterix.api.common.Job.SubmissionMode;
-import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.FunctionDecl;
 import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.visitor.AQLPrintVisitor;
 import edu.uci.ics.asterix.aql.rewrites.AqlRewriter;
-import edu.uci.ics.asterix.aql.translator.DdlTranslator;
+import edu.uci.ics.asterix.common.api.AsterixAppContextInfoImpl;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
@@ -20,55 +34,49 @@
 import edu.uci.ics.asterix.dataflow.data.common.AqlMergeAggregationExpressionFactory;
 import edu.uci.ics.asterix.dataflow.data.common.AqlNullableTypeComputer;
 import edu.uci.ics.asterix.dataflow.data.common.AqlPartialAggregationTypeComputer;
-import edu.uci.ics.asterix.file.DatasetOperations;
-import edu.uci.ics.asterix.file.FeedOperations;
-import edu.uci.ics.asterix.file.IndexOperations;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.jobgen.AqlLogicalExpressionJobGen;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.optimizer.base.RuleCollections;
 import edu.uci.ics.asterix.runtime.job.listener.JobEventListenerFactory;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.translator.AqlExpressionToPlanTranslator;
-import edu.uci.ics.asterix.translator.DmlTranslator;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledBeginFeedStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledControlFeedStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledCreateIndexStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledDeleteStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledInsertStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledLoadFromFileStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledWriteFromQueryResultStatement;
-import edu.uci.ics.asterix.translator.DmlTranslator.ICompiledDmlStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder;
 import edu.uci.ics.hyracks.algebricks.compiler.api.ICompiler;
 import edu.uci.ics.hyracks.algebricks.compiler.api.ICompilerFactory;
 import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController;
 import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionEvalSizeComputer;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionTypeComputer;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IMergeAggregationExpressionFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.INullableTypeComputer;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.LogicalOperatorPrettyPrintVisitor;
 import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.PlanPrettyPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AbstractRuleController;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AlgebricksOptimizationContext;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IOptimizationContextFactory;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.job.IJobletEventListenerFactory;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 
+/**
+ * Provides helper methods for compilation of a query into a JobSpec and submission
+ * to Hyracks through the Hyracks client interface.
+ */
 public class APIFramework {
 
     private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildDefaultLogicalRewrites() {
@@ -99,7 +107,11 @@
         defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
                 RuleCollections.buildConsolidationRuleCollection()));
         defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                RuleCollections.buildOpPushDownRuleCollection()));
+                RuleCollections.buildAccessMethodRuleCollection()));
+        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
+                RuleCollections.buildPlanCleanupRuleCollection()));
+
+        //put TXnRuleCollection!
         return defaultLogicalRewrites;
     }
 
@@ -138,209 +150,20 @@
 
     public enum DisplayFormat {
         TEXT,
-        HTML
+        HTML,
+        JSON
     }
 
-    public static String compileDdlStatements(IHyracksClientConnection hcc, Query query, PrintWriter out,
-            SessionConfig pc, DisplayFormat pdf) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
-        // Begin a transaction against the metadata.
-        // Lock the metadata in X mode to protect against other DDL and DML.
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.EXCLUSIVE);
-        try {
-            DdlTranslator ddlt = new DdlTranslator(mdTxnCtx, query.getPrologDeclList(), out, pc, pdf);
-            ddlt.translate(hcc, false);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return ddlt.getCompiledDeclarations().getDataverseName();
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            e.printStackTrace();
-            throw new AlgebricksException(e);
-        }
-    }
-
-    public static Job[] compileDmlStatements(String dataverseName, Query query, PrintWriter out, SessionConfig pc,
-            DisplayFormat pdf) throws AsterixException, AlgebricksException, JSONException, RemoteException,
-            ACIDException {
-
-        // Begin a transaction against the metadata.
-        // Lock the metadata in S mode to protect against other DDL
-        // modifications.
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.SHARED);
-        try {
-            DmlTranslator dmlt = new DmlTranslator(mdTxnCtx, query.getPrologDeclList());
-            dmlt.translate();
-
-            if (dmlt.getCompiledDmlStatements().size() == 0) {
-                // There is no DML to run. Consider the transaction against the
-                // metadata successful.
-                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-                return new Job[] {};
-            }
-
-            List<Job> dmlJobs = new ArrayList<Job>();
-            AqlCompiledMetadataDeclarations metadata = dmlt.getCompiledDeclarations();
-
-            if (!metadata.isConnectedToDataverse())
-                metadata.connectToDataverse(metadata.getDataverseName());
-
-            for (ICompiledDmlStatement stmt : dmlt.getCompiledDmlStatements()) {
-                switch (stmt.getKind()) {
-                    case LOAD_FROM_FILE: {
-                        CompiledLoadFromFileStatement stmtLoad = (CompiledLoadFromFileStatement) stmt;
-                        dmlJobs.addAll(DatasetOperations.createLoadDatasetJobSpec(stmtLoad, metadata));
-                        break;
-                    }
-                    case WRITE_FROM_QUERY_RESULT: {
-                        CompiledWriteFromQueryResultStatement stmtLoad = (CompiledWriteFromQueryResultStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf,
-                                Statement.Kind.WRITE_FROM_QUERY_RESULT);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case INSERT: {
-                        CompiledInsertStatement stmtLoad = (CompiledInsertStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.INSERT);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case DELETE: {
-                        CompiledDeleteStatement stmtLoad = (CompiledDeleteStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.DELETE);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-                    }
-                    case CREATE_INDEX: {
-                        CompiledCreateIndexStatement cis = (CompiledCreateIndexStatement) stmt;
-                        JobSpecification jobSpec = IndexOperations.buildCreateIndexJobSpec(cis, metadata);
-                        dmlJobs.add(new Job(jobSpec));
-                        break;
-                    }
-
-                    case BEGIN_FEED: {
-                        CompiledBeginFeedStatement cbfs = (CompiledBeginFeedStatement) stmt;
-                        SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
-                                pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
-                                pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
-                        sc2.setGenerateJobSpec(true);
-                        Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, cbfs.getQuery(), cbfs.getVarCounter(), cbfs.getDatasetName().getValue(),
-                                metadata, sc2, out, pdf, Statement.Kind.BEGIN_FEED);
-                        dmlJobs.add(new Job(mj.second));
-                        break;
-
-                    }
-
-                    case CONTROL_FEED: {
-                        CompiledControlFeedStatement cfs = (CompiledControlFeedStatement) stmt;
-                        Job job = new Job(FeedOperations.buildControlFeedJobSpec(cfs, metadata),
-                                SubmissionMode.ASYNCHRONOUS);
-                        dmlJobs.add(job);
-                        break;
-                    }
-                    default: {
-                        throw new IllegalArgumentException();
-                    }
-                }
-            }
-            if (pc.isPrintJob()) {
-                int i = 0;
-                for (Job js : dmlJobs) {
-                    out.println("<H1>Hyracks job number " + i + ":</H1>");
-                    out.println("<PRE>");
-                    out.println(js.getJobSpec().toJSON().toString(1));
-                    out.println(js.getJobSpec().getUserConstraints());
-                    out.println(js.getSubmissionMode());
-                    out.println("</PRE>");
-                    i++;
-                }
-            }
-            // close connection to dataverse
-            if (metadata.isConnectedToDataverse())
-                metadata.disconnectFromDataverse();
-
-            Job[] jobs = dmlJobs.toArray(new Job[0]);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return jobs;
-        } catch (AsterixException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (AlgebricksException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (JSONException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw new AsterixException(e);
-        }
-    }
-
-    public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQuery(String dataverseName, Query q,
-            int varCounter, String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc,
-            PrintWriter out, DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException,
-            JSONException, RemoteException, ACIDException {
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        try {
-            MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.SHARED);
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> result = compileQueryInternal(mdTxnCtx,
-                    dataverseName, q, varCounter, outputDatasetName, metadataDecls, pc, out, pdf, dmlKind);
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return result;
-        } catch (AsterixException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (AlgebricksException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (JSONException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (RemoteException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (ACIDException e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw new AsterixException(e);
-        }
-    }
-
-    public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQueryInternal(
-            MetadataTransactionContext mdTxnCtx, String dataverseName, Query q, int varCounter,
-            String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc, PrintWriter out,
-            DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
+    public static Pair<Query, Integer> reWriteQuery(List<FunctionDecl> declaredFunctions,
+            AqlMetadataProvider metadataProvider, Query q, SessionConfig pc, PrintWriter out, DisplayFormat pdf)
+            throws AsterixException {
 
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintExprParam()) {
             out.println();
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Expression tree:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Expression tree:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -353,21 +176,29 @@
             }
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
-        AqlRewriter rw = new AqlRewriter(q, varCounter, mdTxnCtx, dataverseName);
+        AqlRewriter rw = new AqlRewriter(declaredFunctions, q, metadataProvider.getMetadataTxnContext());
         rw.rewrite();
         Query rwQ = rw.getExpr();
+        return new Pair(rwQ, rw.getVarCounter());
+    }
+
+    public static JobSpecification compileQuery(List<FunctionDecl> declaredFunctions,
+            AqlMetadataProvider queryMetadataProvider, Query rwQ, int varCounter, String outputDatasetName,
+            SessionConfig pc, PrintWriter out, DisplayFormat pdf, ICompiledDmlStatement statement)
+            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
+
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintRewrittenExprParam()) {
             out.println();
 
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Rewriten expression tree:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Rewriten expression tree:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -376,41 +207,35 @@
                 }
             }
 
-            if (q != null) {
+            if (rwQ != null) {
                 rwQ.accept(new AQLPrintVisitor(out), 0);
             }
 
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
 
         }
-        long txnId = TransactionIDFactory.generateTransactionId();
-        AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(txnId, mdTxnCtx, rw.getVarCounter(),
-                outputDatasetName, dmlKind);
 
-        ILogicalPlanAndMetadata planAndMetadata = t.translate(rwQ, metadataDecls);
-        boolean isWriteTransaction = false;
-        AqlMetadataProvider mp = (AqlMetadataProvider) planAndMetadata.getMetadataProvider();
-        if (metadataDecls == null) {
-            metadataDecls = mp.getMetadataDeclarations();
-        }
-        isWriteTransaction = mp.isWriteTransaction();
+        edu.uci.ics.asterix.transaction.management.service.transaction.JobId asterixJobId = JobIdFactory
+                .generateJobId();
+        queryMetadataProvider.setJobId(asterixJobId);
+        AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(queryMetadataProvider, varCounter,
+                outputDatasetName, statement);
 
-        if (outputDatasetName == null && metadataDecls.getOutputFile() == null) {
-            throw new AlgebricksException("Unknown output file: `write output to nc:\"file\"' statement missing.");
-        }
+        ILogicalPlan plan = t.translate(rwQ);
+        boolean isWriteTransaction = queryMetadataProvider.isWriteTransaction();
 
         LogicalOperatorPrettyPrintVisitor pvisitor = new LogicalOperatorPrettyPrintVisitor();
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintLogicalPlanParam()) {
 
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Logical plan:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Logical plan:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -419,41 +244,27 @@
                 }
             }
 
-            if (q != null) {
+            if (rwQ != null) {
                 StringBuilder buffer = new StringBuilder();
-                PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
+                PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
                 out.print(buffer);
             }
 
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
 
-        int frameSize = GlobalConfig.DEFAULT_FRAME_SIZE;
-        String frameSizeStr = System.getProperty(GlobalConfig.FRAME_SIZE_PROPERTY);
-        if (frameSizeStr != null) {
-            int fz = -1;
-            try {
-                fz = Integer.parseInt(frameSizeStr);
-            } catch (NumberFormatException nfe) {
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong frame size size argument. Picking default value ("
-                        + GlobalConfig.DEFAULT_FRAME_SIZE + ") instead.\n");
-                throw new AlgebricksException(nfe);
-            }
-            if (fz >= 0) {
-                frameSize = fz;
-            }
-        }
+        int frameSize = GlobalConfig.getFrameSize();
 
         HeuristicCompilerFactoryBuilder builder = new HeuristicCompilerFactoryBuilder(
                 AqlOptimizationContextFactory.INSTANCE);
         builder.setLogicalRewrites(buildDefaultLogicalRewrites());
         builder.setPhysicalRewrites(buildDefaultPhysicalRewrites());
-        IDataFormat format = metadataDecls.getFormat();
+        IDataFormat format = queryMetadataProvider.getFormat();
         ICompilerFactory compilerFactory = builder.create();
         builder.setFrameSize(frameSize);
         builder.setExpressionEvalSizeComputer(format.getExpressionEvalSizeComputer());
@@ -464,69 +275,80 @@
 
         OptimizationConfUtil.getPhysicalOptimizationConfig().setFrameSize(frameSize);
         builder.setPhysicalOptimizationConfig(OptimizationConfUtil.getPhysicalOptimizationConfig());
-        ICompiler compiler = compilerFactory.createCompiler(planAndMetadata.getPlan(),
-                planAndMetadata.getMetadataProvider(), t.getVarCounter());
+
+        ICompiler compiler = compilerFactory.createCompiler(plan, queryMetadataProvider, t.getVarCounter());
         if (pc.isOptimize()) {
             compiler.optimize();
-            if (true) {
-                StringBuilder buffer = new StringBuilder();
-                PlanPrettyPrinter.printPhysicalOps(planAndMetadata.getPlan(), buffer, 0);
-                out.print(buffer);
-            } else if (pc.isPrintOptimizedLogicalPlanParam()) {
-                switch (pdf) {
-                    case HTML: {
-                        out.println("<H1>Optimized logical plan:</H1>");
-                        out.println("<PRE>");
-                        break;
-                    }
-                    case TEXT: {
-                        out.println("----------Optimized plan ");
-                        break;
-                    }
-                }
-
-                if (q != null) {
+            if (pc.isPrintOptimizedLogicalPlanParam()) {
+                if (pc.isPrintPhysicalOpsOnly()) {
+                    // For Optimizer tests.
                     StringBuilder buffer = new StringBuilder();
-                    PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
+                    PlanPrettyPrinter.printPhysicalOps(plan, buffer, 0);
                     out.print(buffer);
-                }
-                switch (pdf) {
-                    case HTML: {
-                        out.println("</PRE>");
-                        break;
+                } else {
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("<h3>Optimized logical plan:</h3>");
+                            out.println("<pre>");
+                            break;
+                        }
+                        case TEXT: {
+                            out.println("----------Optimized plan ");
+                            break;
+                        }
+                    }
+                    if (rwQ != null) {
+                        StringBuilder buffer = new StringBuilder();
+                        PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
+                        out.print(buffer);
+                    }
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("</pre>");
+                            break;
+                        }
                     }
                 }
             }
         }
 
         if (!pc.isGenerateJobSpec()) {
-            // Job spec not requested. Consider transaction against metadata
-            // committed.
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
             return null;
         }
 
-        AlgebricksPartitionConstraint clusterLocs = planAndMetadata.getClusterLocations();
-        builder.setBinaryBooleanInspector(format.getBinaryBooleanInspector());
-        builder.setBinaryIntegerInspector(format.getBinaryIntegerInspector());
+        AlgebricksPartitionConstraint clusterLocs = queryMetadataProvider.getClusterLocations();
+        builder.setBinaryBooleanInspectorFactory(format.getBinaryBooleanInspectorFactory());
+        builder.setBinaryIntegerInspectorFactory(format.getBinaryIntegerInspectorFactory());
         builder.setClusterLocations(clusterLocs);
         builder.setComparatorFactoryProvider(format.getBinaryComparatorFactoryProvider());
-        builder.setExprJobGen(AqlLogicalExpressionJobGen.INSTANCE);
+        builder.setExpressionRuntimeProvider(new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter(
+                AqlLogicalExpressionJobGen.INSTANCE));
         builder.setHashFunctionFactoryProvider(format.getBinaryHashFunctionFactoryProvider());
+        builder.setHashFunctionFamilyProvider(format.getBinaryHashFunctionFamilyProvider());
         builder.setNullWriterFactory(format.getNullWriterFactory());
-        builder.setPrinterProvider(format.getPrinterFactoryProvider());
+
+        switch (pdf) {
+            case JSON:
+                builder.setPrinterProvider(format.getJSONPrinterFactoryProvider());
+                break;
+            default:
+                builder.setPrinterProvider(format.getPrinterFactoryProvider());
+                break;
+        }
+
         builder.setSerializerDeserializerProvider(format.getSerdeProvider());
         builder.setTypeTraitProvider(format.getTypeTraitProvider());
         builder.setNormalizedKeyComputerFactoryProvider(format.getNormalizedKeyComputerFactoryProvider());
 
-        JobSpecification spec = compiler.createJob(AsterixAppContextInfoImpl.INSTANCE);
-        // set the job event listener
-        spec.setJobletEventListenerFactory(new JobEventListenerFactory(txnId, isWriteTransaction));
+        IJobletEventListenerFactory jobEventListenerFactory = new JobEventListenerFactory(asterixJobId,
+                isWriteTransaction);
+        JobSpecification spec = compiler.createJob(AsterixAppContextInfoImpl.getInstance(), jobEventListenerFactory);
+
         if (pc.isPrintJob()) {
             switch (pdf) {
                 case HTML: {
-                    out.println("<H1>Hyracks job:</H1>");
-                    out.println("<PRE>");
+                    out.println("<h3>Hyracks job:</h3>");
+                    out.println("<pre>");
                     break;
                 }
                 case TEXT: {
@@ -534,31 +356,30 @@
                     break;
                 }
             }
-            if (q != null) {
+            if (rwQ != null) {
                 out.println(spec.toJSON().toString(1));
                 out.println(spec.getUserConstraints());
             }
             switch (pdf) {
                 case HTML: {
-                    out.println("</PRE>");
+                    out.println("</pre>");
                     break;
                 }
             }
         }
-        return new Pair<AqlCompiledMetadataDeclarations, JobSpecification>(metadataDecls, spec);
+        return spec;
     }
 
     public static void executeJobArray(IHyracksClientConnection hcc, JobSpecification[] specs, PrintWriter out,
             DisplayFormat pdf) throws Exception {
         for (int i = 0; i < specs.length; i++) {
             specs[i].setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
+            JobId jobId = hcc.startJob(specs[i]);
             long startTime = System.currentTimeMillis();
-            hcc.start(jobId);
             hcc.waitForCompletion(jobId);
             long endTime = System.currentTimeMillis();
             double duration = (endTime - startTime) / 1000.00;
-            out.println("<PRE>Duration: " + duration + "</PRE>");
+            out.println("<pre>Duration: " + duration + "</pre>");
         }
 
     }
@@ -567,10 +388,9 @@
             throws Exception {
         for (int i = 0; i < jobs.length; i++) {
             jobs[i].getJobSpec().setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, jobs[i].getJobSpec());
             long startTime = System.currentTimeMillis();
             try {
-                hcc.start(jobId);
+                JobId jobId = hcc.startJob(jobs[i].getJobSpec());
                 if (jobs[i].getSubmissionMode() == SubmissionMode.ASYNCHRONOUS) {
                     continue;
                 }
@@ -581,9 +401,21 @@
             }
             long endTime = System.currentTimeMillis();
             double duration = (endTime - startTime) / 1000.00;
-            out.println("<PRE>Duration: " + duration + "</PRE>");
+            out.println("<pre>Duration: " + duration + "</pre>");
         }
 
     }
 
+    private static IDataFormat getDataFormat(MetadataTransactionContext mdTxnCtx, String dataverseName)
+            throws AsterixException {
+        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return format;
+    }
+
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java
deleted file mode 100644
index 5432fb9..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppContextInfoImpl.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package edu.uci.ics.asterix.api.common;
-
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.base.IAsterixApplicationContextInfo;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class AsterixAppContextInfoImpl implements IAsterixApplicationContextInfo {
-
-    public static final AsterixAppContextInfoImpl INSTANCE = new AsterixAppContextInfoImpl();
-
-    private AsterixAppContextInfoImpl() {
-    }
-
-    @Override
-    public IIndexRegistryProvider<IIndex> getTreeRegisterProvider() {
-        return AsterixTreeRegistryProvider.INSTANCE;
-    }
-
-    @Override
-    public IStorageManagerInterface getStorageManagerInterface() {
-        return AsterixStorageManagerInterface.INSTANCE;
-    }
-
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
index 5f4c189..d207acb 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
@@ -3,6 +3,8 @@
 import java.util.EnumSet;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.hyracks.bootstrap.CCApplicationEntryPoint;
+import edu.uci.ics.asterix.hyracks.bootstrap.NCApplicationEntryPoint;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobFlag;
@@ -17,13 +19,12 @@
 
     public static final String NC1_ID = "nc1";
     public static final String NC2_ID = "nc2";
+    public static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
 
     public static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
 
     public static final int DEFAULT_HYRACKS_CC_CLUSTER_PORT = 1099;
 
-    public static final int FRAME_SIZE = 32768;
-
     private static ClusterControllerService cc;
     private static NodeControllerService nc1;
     private static NodeControllerService nc2;
@@ -36,6 +37,7 @@
         ccConfig.clientNetPort = DEFAULT_HYRACKS_CC_CLIENT_PORT;
         ccConfig.clusterNetPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ccConfig.defaultMaxJobAttempts = 0;
+        ccConfig.appCCMainClass = CCApplicationEntryPoint.class.getName();
         // ccConfig.useJOL = true;
         cc = new ClusterControllerService(ccConfig);
         cc.start();
@@ -45,8 +47,9 @@
         ncConfig1.ccPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ncConfig1.clusterNetIPAddress = "127.0.0.1";
         ncConfig1.dataIPAddress = "127.0.0.1";
+        ncConfig1.datasetIPAddress = "127.0.0.1";
         ncConfig1.nodeId = NC1_ID;
-        ncConfig1.frameSize = FRAME_SIZE;
+        ncConfig1.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc1 = new NodeControllerService(ncConfig1);
         nc1.start();
 
@@ -55,28 +58,19 @@
         ncConfig2.ccPort = DEFAULT_HYRACKS_CC_CLUSTER_PORT;
         ncConfig2.clusterNetIPAddress = "127.0.0.1";
         ncConfig2.dataIPAddress = "127.0.0.1";
+        ncConfig2.datasetIPAddress = "127.0.0.1";
         ncConfig2.nodeId = NC2_ID;
-        ncConfig2.frameSize = FRAME_SIZE;
+        ncConfig2.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc2 = new NodeControllerService(ncConfig2);
         nc2.start();
 
         hcc = new HyracksConnection(cc.getConfig().clientNetIpAddress, cc.getConfig().clientNetPort);
-        hcc.createApplication(GlobalConfig.HYRACKS_APP_NAME, null);
-
     }
 
     public static IHyracksClientConnection getHyracksClientConnection() {
         return hcc;
     }
 
-    public static void destroyApp() throws Exception {
-        hcc.destroyApplication(GlobalConfig.HYRACKS_APP_NAME);
-    }
-
-    public static void createApp() throws Exception {
-        hcc.createApplication(GlobalConfig.HYRACKS_APP_NAME, null);
-    }
-
     public static void deinit() throws Exception {
         nc2.stop();
         nc1.stop();
@@ -84,9 +78,8 @@
     }
 
     public static void runJob(JobSpecification spec) throws Exception {
-        JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, spec, EnumSet.of(JobFlag.PROFILE_RUNTIME));
         GlobalConfig.ASTERIX_LOGGER.info(spec.toJSON().toString());
-        hcc.start(jobId);
+        JobId jobId = hcc.startJob(spec, EnumSet.of(JobFlag.PROFILE_RUNTIME));
         GlobalConfig.ASTERIX_LOGGER.info(jobId.toString());
         hcc.waitForCompletion(jobId);
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
index 8050a3f..af0b4b4 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/SessionConfig.java
@@ -1,100 +1,56 @@
-/**
- * 
- */
 package edu.uci.ics.asterix.api.common;
 
 public class SessionConfig {
-    private int port;
-    private boolean printExprParam;
-    private boolean printRewrittenExprParam;
-    private boolean printLogicalPlanParam;
-    private boolean printOptimizedLogicalPlanParam;
-    private boolean printPhysicalOpsOnly;
-    private boolean printJob;
-    private boolean optimize;
-    private boolean generateJobSpec = true;
+    private final boolean optimize;
+    private final boolean printExprParam;
+    private final boolean printRewrittenExprParam;
+    private final boolean printLogicalPlanParam;
+    private final boolean printOptimizedLogicalPlanParam;
+    private final boolean printPhysicalOpsOnly;
+    private final boolean generateJobSpec;
+    private final boolean printJob;
 
-    public SessionConfig(int port, boolean optimize, boolean printExprParam, boolean printRewrittenExprParam,
+    public SessionConfig(boolean optimize, boolean printExprParam, boolean printRewrittenExprParam,
             boolean printLogicalPlanParam, boolean printOptimizedLogicalPlanParam, boolean printPhysicalOpsOnly,
-            boolean printJob) {
-        this.setPort(port);
-        this.setOptimize(optimize);
-        this.setPrintExprParam(printExprParam);
-        this.setPrintRewrittenExprParam(printRewrittenExprParam);
-        this.setPrintLogicalPlanParam(printLogicalPlanParam);
-        this.setPrintOptimizedLogicalPlanParam(printOptimizedLogicalPlanParam);
-        this.setPrintPhysicalOpsOnly(printPhysicalOpsOnly);
-        this.setPrintJob(printJob);
-    }
-
-    public void setPort(int port) {
-        this.port = port;
-    }
-
-    public int getPort() {
-        return port;
-    }
-
-    public void setPrintExprParam(boolean printExprParam) {
+            boolean generateJobSpec, boolean printJob) {
+        this.optimize = optimize;
         this.printExprParam = printExprParam;
+        this.printRewrittenExprParam = printRewrittenExprParam;
+        this.printLogicalPlanParam = printLogicalPlanParam;
+        this.printOptimizedLogicalPlanParam = printOptimizedLogicalPlanParam;
+        this.printPhysicalOpsOnly = printPhysicalOpsOnly;
+        this.generateJobSpec = generateJobSpec;
+        this.printJob = printJob;
     }
 
     public boolean isPrintExprParam() {
         return printExprParam;
     }
 
-    public void setPrintRewrittenExprParam(boolean printRewrittenExprParam) {
-        this.printRewrittenExprParam = printRewrittenExprParam;
-    }
-
     public boolean isPrintRewrittenExprParam() {
         return printRewrittenExprParam;
     }
 
-    public void setPrintLogicalPlanParam(boolean printLogicalPlanParam) {
-        this.printLogicalPlanParam = printLogicalPlanParam;
-    }
-
     public boolean isPrintLogicalPlanParam() {
         return printLogicalPlanParam;
     }
 
-    public void setPrintOptimizedLogicalPlanParam(boolean printOptimizedLogicalPlanParam) {
-        this.printOptimizedLogicalPlanParam = printOptimizedLogicalPlanParam;
-    }
-
     public boolean isPrintOptimizedLogicalPlanParam() {
         return printOptimizedLogicalPlanParam;
     }
 
-    public void setPrintJob(boolean printJob) {
-        this.printJob = printJob;
-    }
-
     public boolean isPrintJob() {
         return printJob;
     }
 
-    public void setPrintPhysicalOpsOnly(boolean prinPhysicalOpsOnly) {
-        this.printPhysicalOpsOnly = prinPhysicalOpsOnly;
-    }
-
     public boolean isPrintPhysicalOpsOnly() {
         return printPhysicalOpsOnly;
     }
 
-    public void setOptimize(boolean optimize) {
-        this.optimize = optimize;
-    }
-
     public boolean isOptimize() {
         return optimize;
     }
 
-    public void setGenerateJobSpec(boolean generateJobSpec) {
-        this.generateJobSpec = generateJobSpec;
-    }
-
     public boolean isGenerateJobSpec() {
         return generateJobSpec;
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
index 7bc454a..12fa51a 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
@@ -1,176 +1,143 @@
 package edu.uci.ics.asterix.api.http.servlet;
 
 import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileReader;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.io.PrintWriter;
-import java.io.StringReader;
+import java.util.List;
+import java.util.logging.Level;
 
 import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import edu.uci.ics.asterix.api.common.APIFramework;
 import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.Job;
 import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.parser.TokenMgrError;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
 
 public class APIServlet extends HttpServlet {
     private static final long serialVersionUID = 1L;
 
     private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
 
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
     @Override
     public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        DisplayFormat format = DisplayFormat.HTML;
+        if (request.getContentType().equals("application/json")) {
+            format = DisplayFormat.JSON;
+        } else if (request.getContentType().equals("text/plain")) {
+            format = DisplayFormat.TEXT;
+        }
+
         String query = request.getParameter("query");
         String printExprParam = request.getParameter("print-expr-tree");
         String printRewrittenExprParam = request.getParameter("print-rewritten-expr-tree");
         String printLogicalPlanParam = request.getParameter("print-logical-plan");
         String printOptimizedLogicalPlanParam = request.getParameter("print-optimized-logical-plan");
         String printJob = request.getParameter("print-job");
-        String strPort = request.getParameter("hyracks-port");
-        String strDisplayResult = request.getParameter("display-result");
-        int port = Integer.parseInt(strPort);
-        PrintWriter out = response.getWriter();
+        response.setCharacterEncoding("utf-8");
         response.setContentType("text/html");
-        out.println("<H1>Input statements:</H1>");
-        printInHtml(out, query);
+        PrintWriter out = response.getWriter();
         ServletContext context = getServletContext();
         IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
         try {
             synchronized (context) {
                 hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
-                if (hcc == null) {
-                    hcc = new HyracksConnection("localhost", port);
-                    context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
                 }
             }
-            AQLParser parser = new AQLParser(new StringReader(query));
-            Query q = (Query) parser.Statement();
-            SessionConfig pc = new SessionConfig(port, true, isSet(printExprParam), isSet(printRewrittenExprParam),
-                    isSet(printLogicalPlanParam), isSet(printOptimizedLogicalPlanParam), false, isSet(printJob));
-            pc.setGenerateJobSpec(true);
-
+            AQLParser parser = new AQLParser(query);
+            List<Statement> aqlStatements = parser.Statement();
+            SessionConfig sessionConfig = new SessionConfig(true, isSet(printExprParam),
+                    isSet(printRewrittenExprParam), isSet(printLogicalPlanParam),
+                    isSet(printOptimizedLogicalPlanParam), false, true, isSet(printJob));
             MetadataManager.INSTANCE.init();
-            String dataverseName = null;
-
-            if (q != null) {
-                dataverseName = postDmlStatement(hcc, q, out, pc);
-            }
-
-            if (q.isDummyQuery()) {
-                return;
-            }
-
-            Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverseName, q, parser.getVarCounter(), null, null, pc, out, DisplayFormat.HTML, null);
-            JobSpecification spec = metadataAndSpec.second;
-            GlobalConfig.ASTERIX_LOGGER.info(spec.toJSON().toString(1));
-            AqlCompiledMetadataDeclarations metadata = metadataAndSpec.first;
+            AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, out, sessionConfig, format);
+            double duration = 0;
             long startTime = System.currentTimeMillis();
-            APIFramework.executeJobArray(hcc, new JobSpecification[] { spec }, out, DisplayFormat.HTML);
+            aqlTranslator.compileAndExecute(hcc, hds, false);
             long endTime = System.currentTimeMillis();
-            double duration = (endTime - startTime) / 1000.00;
-            out.println("<H1>Result:</H1>");
-
-            out.println("<PRE>");
-            out.println(metadata.getOutputFile().getNodeName() + ":"
-                    + metadata.getOutputFile().getLocalFile().getFile().getPath());
-            out.println("Duration: " + duration);
-            out.println("</PRE>");
-
-            if (isSet(strDisplayResult)) {
-                out.println("<PRE>");
-                displayFile(metadata.getOutputFile().getLocalFile().getFile(), out);
-                out.println("</PRE>");
-            }
-        } catch (ParseException pe) {
+            duration = (endTime - startTime) / 1000.00;
+            out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
+        } catch (ParseException | TokenMgrError | edu.uci.ics.asterix.aqlplus.parser.TokenMgrError pe) {
+            out.println("<pre class=\"error\">");
             String message = pe.getMessage();
             message = message.replace("<", "&lt");
             message = message.replace(">", "&gt");
-            int pos = message.indexOf("line");
-            int columnPos = message.indexOf(",", pos + 1 + "line".length());
-            int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
-            String line = query.split("\n")[lineNo - 1];
             out.println("SyntaxError:" + message);
-            out.println("==> " + line);
-
+            int pos = message.indexOf("line");
+            if (pos > 0) {
+                int columnPos = message.indexOf(",", pos + 1 + "line".length());
+                int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
+                String[] lines = query.split("\n");
+                if (lineNo >= lines.length) {
+                    out.println("===> &ltBLANK LINE&gt");
+                } else {
+                    String line = lines[lineNo - 1];
+                    out.println("==> " + line);
+                }
+            }
+            out.println("</pre>");
         } catch (Exception e) {
+            GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
+            out.println("<pre class=\"error\">");
             out.println(e.getMessage());
+            out.println("</pre>");
         }
     }
 
     @Override
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        String resourcePath = null;
+        response.setCharacterEncoding("utf-8");
         PrintWriter out = response.getWriter();
-        response.setContentType("text/html");
-        final String form = "<form method=\"post\">"
-                + "<center><textarea cols=\"80\" rows=\"25\" name=\"query\" ></textarea><br/>"
-                + "Port: <input type = \"text\" name = \"hyracks-port\" size=\"5\" maxlength=\"5\" value=\"1098\" /><br/>"
-                + "<input type = \"checkbox\" name = \"print-expr-tree\" value=\"true\" />print parsed expressions<P>"
-                + "<input type = \"checkbox\" name = \"print-rewritten-expr-tree\" value=\"true\" />print rewritten expressions<P>"
-                + "<input type = \"checkbox\" name = \"print-logical-plan\" value=\"true\" checked/>print logical plan<P>"
-                + "<input type = \"checkbox\" name = \"print-optimized-logical-plan\" value=\"true\" checked/>print optimized logical plan<P>"
-                + "<input type = \"checkbox\" name = \"print-job\" value=\"true\" checked/>print Hyracks job<P>"
-                + "<input type = \"checkbox\" name = \"display-result\" value=\"true\" checked/>display NFS file<P>"
-                // +
-                // "<input type = \"checkbox\" name = \"serialize-as-xml\" value=\"true\">serialize as XML<P>"
-                // +
-                // "<input type = \"checkbox\" name = \"show-tuples\" value=\"true\">show the entire tuples<P>"
-                + "<input type=\"submit\"/>" + "</center>" + "</form>";
-        out.println(form);
-    }
+        String requestURI = request.getRequestURI();
+        if (requestURI.equals("/")) {
+            response.setContentType("text/html");
+            resourcePath = "/webui/querytemplate.html";
+        } else {
+            resourcePath = requestURI;
+        }
 
-    private String postDmlStatement(IHyracksClientConnection hcc, Query dummyQ, PrintWriter out, SessionConfig pc)
-            throws Exception {
+        InputStream is = APIServlet.class.getResourceAsStream(resourcePath);
+        if (is == null) {
+            response.sendError(HttpServletResponse.SC_NOT_FOUND);
+            return;
+        }
+        InputStreamReader isr = new InputStreamReader(is);
+        StringBuilder sb = new StringBuilder();
+        BufferedReader br = new BufferedReader(isr);
+        String line = br.readLine();
 
-        String dataverseName = APIFramework.compileDdlStatements(hcc, dummyQ, out, pc, DisplayFormat.TEXT);
-        Job[] dmlJobSpecs = APIFramework.compileDmlStatements(dataverseName, dummyQ, out, pc, DisplayFormat.HTML);
+        while (line != null) {
+            sb.append(line);
+            line = br.readLine();
+        }
 
-        long startTime = System.currentTimeMillis();
-        APIFramework.executeJobArray(hcc, dmlJobSpecs, out, DisplayFormat.HTML);
-        long endTime = System.currentTimeMillis();
-        double duration = (endTime - startTime) / 1000.00;
-        out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
-        return dataverseName;
+        out.println(sb.toString());
     }
 
     private static boolean isSet(String requestParameter) {
         return (requestParameter != null && requestParameter.equals("true"));
     }
-
-    private static void printInHtml(PrintWriter out, String s) {
-        out.println("<PRE>");
-        out.println(s);
-        out.println("</PRE>");
-    }
-
-    private void displayFile(File localFile, PrintWriter out) throws IOException {
-        BufferedReader reader = new BufferedReader(new FileReader(localFile));
-        String inputLine = reader.readLine();
-        int i = 0;
-        while (inputLine != null) {
-            out.println(inputLine);
-            inputLine = reader.readLine();
-            i++;
-            if (i > 500) {
-                out.println("...");
-                out.println("SKIPPING THE REST OF THE RESULTS");
-                break;
-            }
-        }
-        reader.close();
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java
new file mode 100644
index 0000000..61e54d4
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/DDLAPIServlet.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class DDLAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("ddl");
+    }
+
+    protected List<Statement.Kind> getAllowedStatements() {
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.DATAVERSE_DROP, Kind.DATASET_DECL, Kind.NODEGROUP_DECL,
+                Kind.NODEGROUP_DROP, Kind.TYPE_DECL, Kind.TYPE_DROP, Kind.CREATE_INDEX, Kind.INDEX_DECL,
+                Kind.CREATE_DATAVERSE, Kind.DATASET_DROP, Kind.INDEX_DROP, Kind.CREATE_FUNCTION, Kind.FUNCTION_DROP };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-DDL statement %s to the DDL API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java
new file mode 100644
index 0000000..c5b532a
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/HyracksProperties.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class HyracksProperties {
+    private final InputStream is;
+
+    private final Properties properties;
+
+    private static String HYRACKS_IP = "127.0.0.1";
+
+    private static int HYRACKS_PORT = 1098;
+
+    public HyracksProperties() throws IOException {
+        is = HyracksProperties.class.getClassLoader().getResourceAsStream("hyracks-deployment.properties");
+        properties = new Properties();
+        properties.load(is);
+    }
+
+    public String getHyracksIPAddress() {
+        String strIP = properties.getProperty("cc.ip");
+        if (strIP == null) {
+            strIP = HYRACKS_IP;
+        }
+        return strIP;
+    }
+
+    public int getHyracksPort() {
+        String strPort = properties.getProperty("cc.port");
+        int port = HYRACKS_PORT;
+        if (strPort != null) {
+            port = Integer.parseInt(strPort);
+        }
+        return port;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java
new file mode 100644
index 0000000..79eb035
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryAPIServlet.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class QueryAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("query");
+    }
+
+    protected List<Statement.Kind> getAllowedStatements() {
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.FUNCTION_DECL, Kind.QUERY, Kind.SET, Kind.WRITE };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-query statement %s to the query API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
new file mode 100644
index 0000000..c6708b3
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+public class QueryResultAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("text/html");
+        response.setCharacterEncoding("utf-8");
+        String strHandle = request.getParameter("handle");
+        PrintWriter out = response.getWriter();
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            HyracksProperties hp = new HyracksProperties();
+            String strIP = hp.getHyracksIPAddress();
+            int port = hp.getHyracksPort();
+
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+                if (hcc == null) {
+                    hcc = new HyracksConnection(strIP, port);
+                    context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+                }
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+            JSONObject handleObj = new JSONObject(strHandle);
+            JSONArray handle = handleObj.getJSONArray("handle");
+            JobId jobId = new JobId(handle.getLong(0));
+            ResultSetId rsId = new ResultSetId(handle.getLong(1));
+            ByteBuffer buffer = ByteBuffer.allocate(ResultReader.FRAME_SIZE);
+            ResultReader resultReader = new ResultReader(hcc, hds);
+            resultReader.open(jobId, rsId);
+            buffer.clear();
+            JSONObject jsonResponse = new JSONObject();
+            JSONArray results = new JSONArray();
+            while (resultReader.read(buffer) > 0) {
+                results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor()));
+            }
+            jsonResponse.put("results", results);
+            out.write(jsonResponse.toString());
+
+        } catch (Exception e) {
+            out.println(e.getMessage());
+            e.printStackTrace(out);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java
new file mode 100644
index 0000000..b1c1335
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryStatusAPIServlet.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+public class QueryStatusAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("text/html");
+        response.setCharacterEncoding("utf-8");
+        String strHandle = request.getParameter("handle");
+        PrintWriter out = response.getWriter();
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+            JSONObject handleObj = new JSONObject(strHandle);
+            JSONArray handle = handleObj.getJSONArray("handle");
+            JobId jobId = new JobId(handle.getLong(0));
+            ResultSetId rsId = new ResultSetId(handle.getLong(1));
+
+            /* TODO(madhusudancs): We need to find a way to JSON serialize default format obtained from
+             * metadataProvider in the AQLTranslator and store it as part of the result handle.
+             */
+            ResultReader resultReader = new ResultReader(hcc, hds);
+            resultReader.open(jobId, rsId);
+
+            JSONObject jsonResponse = new JSONObject();
+            String status;
+            switch (resultReader.getStatus()) {
+                case RUNNING:
+                    status = "RUNNING";
+                    break;
+                case FAILED:
+                    status = "ERROR";
+                    break;
+                case SUCCESS:
+                    status = "SUCCESS";
+                    break;
+                default:
+                    status = "ERROR";
+                    break;
+            }
+            jsonResponse.put("status", status);
+            out.write(jsonResponse.toString());
+
+        } catch (Exception e) {
+            out.println(e.getMessage());
+            e.printStackTrace(out);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
new file mode 100644
index 0000000..29feb5e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.List;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
+import edu.uci.ics.asterix.api.common.SessionConfig;
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+import edu.uci.ics.asterix.aql.parser.AQLParser;
+import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
+
+abstract class RESTAPIServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final String HYRACKS_DATASET_ATTR = "edu.uci.ics.asterix.HYRACKS_DATASET";
+
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        response.setContentType("application/json");
+        response.setCharacterEncoding("utf-8");
+
+        PrintWriter out = response.getWriter();
+
+        DisplayFormat format = DisplayFormat.HTML;
+
+        String contentType = request.getContentType();
+
+        if ((contentType == null) || (contentType.equals("text/plain"))) {
+            format = DisplayFormat.TEXT;
+        } else if (contentType.equals("application/json")) {
+            format = DisplayFormat.JSON;
+        }
+
+        String query = getQueryParameter(request);
+        boolean asyncResults = isAsync(request);
+
+        ServletContext context = getServletContext();
+        IHyracksClientConnection hcc;
+        IHyracksDataset hds;
+
+        try {
+            synchronized (context) {
+                hcc = (IHyracksClientConnection) context.getAttribute(HYRACKS_CONNECTION_ATTR);
+
+                hds = (IHyracksDataset) context.getAttribute(HYRACKS_DATASET_ATTR);
+                if (hds == null) {
+                    hds = new HyracksDataset(hcc, ResultReader.FRAME_SIZE, ResultReader.NUM_READERS);
+                    context.setAttribute(HYRACKS_DATASET_ATTR, hds);
+                }
+            }
+
+            AQLParser parser = new AQLParser(query);
+            List<Statement> aqlStatements = parser.Statement();
+            if (checkForbiddenStatements(aqlStatements, out)) {
+                return;
+            }
+            SessionConfig sessionConfig = new SessionConfig(true, false, false, false, false, false, true, false);
+
+            MetadataManager.INSTANCE.init();
+
+            AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, out, sessionConfig, format);
+
+            aqlTranslator.compileAndExecute(hcc, hds, asyncResults);
+
+        } catch (ParseException pe) {
+            StringBuilder errorMessage = new StringBuilder();
+            String message = pe.getMessage();
+            message = message.replace("<", "&lt");
+            message = message.replace(">", "&gt");
+            errorMessage.append("SyntaxError:" + message + "\n");
+            int pos = message.indexOf("line");
+            if (pos > 0) {
+                int columnPos = message.indexOf(",", pos + 1 + "line".length());
+                int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
+                String line = query.split("\n")[lineNo - 1];
+                errorMessage.append("==> " + line + "\n");
+            }
+            JSONObject errorResp = ResultUtils.getErrorResponse(2, errorMessage.toString());
+            out.write(errorResp.toString());
+        } catch (Exception e) {
+            StringBuilder errorMessage = new StringBuilder();
+            errorMessage.append(e.getMessage());
+            JSONObject errorResp = ResultUtils.getErrorResponse(99, errorMessage.toString());
+            out.write(errorResp.toString());
+        }
+    }
+
+    private boolean checkForbiddenStatements(List<Statement> aqlStatements, PrintWriter out) {
+        for (Statement st : aqlStatements) {
+            if (!getAllowedStatements().contains(st.getKind())) {
+                JSONObject errorResp = ResultUtils.getErrorResponse(1, String.format(getErrorMessage(), st.getKind()));
+                out.write(errorResp.toString());
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected boolean isAsync(HttpServletRequest request) {
+        String mode = request.getParameter("mode");
+        boolean asyncResults = false;
+        if (mode != null && mode.equals("asynchronous")) {
+            asyncResults = true;
+        }
+        return asyncResults;
+    }
+
+    protected abstract String getQueryParameter(HttpServletRequest request);
+
+    protected abstract List<Kind> getAllowedStatements();
+
+    protected abstract String getErrorMessage();
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
new file mode 100644
index 0000000..43767a0
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/UpdateAPIServlet.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.api.http.servlet;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.base.Statement.Kind;
+
+public class UpdateAPIServlet extends RESTAPIServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected String getQueryParameter(HttpServletRequest request) {
+        return request.getParameter("statements");
+    }
+
+    protected List<Statement.Kind> getAllowedStatements() {
+        Kind[] statementsArray = { Kind.DATAVERSE_DECL, Kind.DELETE, Kind.INSERT, Kind.UPDATE,
+                Kind.DML_CMD_LIST, Kind.LOAD_FROM_FILE, Kind.WRITE_FROM_QUERY_RESULT, Kind.BEGIN_FEED,
+                Kind.CONTROL_FEED };
+        return Arrays.asList(statementsArray);
+    }
+
+    protected String getErrorMessage() {
+        return "Invalid statement: Non-Update statement %s to the Update API.";
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
index 870df8d..cb786d7 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
@@ -2,24 +2,18 @@
 
 import java.io.PrintWriter;
 import java.io.Reader;
-import java.rmi.RemoteException;
-
-import org.json.JSONException;
+import java.util.List;
 
 import edu.uci.ics.asterix.api.common.APIFramework;
 import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
 import edu.uci.ics.asterix.api.common.Job;
 import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 
@@ -47,41 +41,32 @@
 
     public void compile(boolean optimize, boolean printRewrittenExpressions, boolean printLogicalPlan,
             boolean printOptimizedPlan, boolean printPhysicalOpsOnly, boolean generateBinaryRuntime, boolean printJob)
-            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
+            throws Exception {
         queryJobSpec = null;
         dmlJobs = null;
 
         if (queryText == null) {
             return;
         }
-        AQLParser parser = new AQLParser(queryText);
-        Query q;
+        int ch;
+        StringBuilder builder = new StringBuilder();
+        while ((ch = queryText.read()) != -1) {
+            builder.append((char) ch);
+        }
+        AQLParser parser = new AQLParser(builder.toString());
+        List<Statement> aqlStatements;
         try {
-            q = (Query) parser.Statement();
+            aqlStatements = parser.Statement();
         } catch (ParseException pe) {
             throw new AsterixException(pe);
         }
         MetadataManager.INSTANCE.init();
 
-        SessionConfig pc = new SessionConfig(AsterixHyracksIntegrationUtil.DEFAULT_HYRACKS_CC_CLIENT_PORT, optimize,
-                false, printRewrittenExpressions, printLogicalPlan, printOptimizedPlan, printPhysicalOpsOnly, printJob);
-        pc.setGenerateJobSpec(generateBinaryRuntime);
+        SessionConfig pc = new SessionConfig(optimize, false, printRewrittenExpressions, printLogicalPlan,
+                printOptimizedPlan, printPhysicalOpsOnly, generateBinaryRuntime, printJob);
 
-        String dataverseName = null;
-        if (q != null) {
-            dataverseName = APIFramework.compileDdlStatements(hcc, q, writer, pc, DisplayFormat.TEXT);
-            dmlJobs = APIFramework.compileDmlStatements(dataverseName, q, writer, pc, DisplayFormat.TEXT);
-        }
-
-        if (q.isDummyQuery()) {
-            return;
-        }
-
-        Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                dataverseName, q, parser.getVarCounter(), null, null, pc, writer, DisplayFormat.TEXT, null);
-        if (metadataAndSpec != null) {
-            queryJobSpec = metadataAndSpec.second;
-        }
+        AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, writer, pc, DisplayFormat.TEXT);
+        aqlTranslator.compileAndExecute(hcc, null, false);
         writer.flush();
     }
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
new file mode 100644
index 0000000..976ec7c
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -0,0 +1,1475 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.aql.translator;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+import java.rmi.RemoteException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.api.common.APIFramework;
+import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
+import edu.uci.ics.asterix.api.common.Job;
+import edu.uci.ics.asterix.api.common.SessionConfig;
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
+import edu.uci.ics.asterix.aql.expression.ControlFeedStatement;
+import edu.uci.ics.asterix.aql.expression.CreateDataverseStatement;
+import edu.uci.ics.asterix.aql.expression.CreateFunctionStatement;
+import edu.uci.ics.asterix.aql.expression.CreateIndexStatement;
+import edu.uci.ics.asterix.aql.expression.DatasetDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
+import edu.uci.ics.asterix.aql.expression.DeleteStatement;
+import edu.uci.ics.asterix.aql.expression.DropStatement;
+import edu.uci.ics.asterix.aql.expression.ExternalDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.FeedDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.FunctionDecl;
+import edu.uci.ics.asterix.aql.expression.FunctionDropStatement;
+import edu.uci.ics.asterix.aql.expression.Identifier;
+import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
+import edu.uci.ics.asterix.aql.expression.InsertStatement;
+import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
+import edu.uci.ics.asterix.aql.expression.LoadFromFileStatement;
+import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
+import edu.uci.ics.asterix.aql.expression.NodegroupDecl;
+import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.expression.SetStatement;
+import edu.uci.ics.asterix.aql.expression.TypeDecl;
+import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
+import edu.uci.ics.asterix.aql.expression.WriteFromQueryResultStatement;
+import edu.uci.ics.asterix.aql.expression.WriteStatement;
+import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.file.DatasetOperations;
+import edu.uci.ics.asterix.file.FeedOperations;
+import edu.uci.ics.asterix.file.IndexOperations;
+import edu.uci.ics.asterix.formats.base.IDataFormat;
+import edu.uci.ics.asterix.metadata.IDatasetDetails;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Datatype;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeSignature;
+import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
+import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledBeginFeedStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledControlFeedStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDatasetDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDeleteStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledIndexDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledInsertStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledWriteFromQueryResultStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
+import edu.uci.ics.asterix.translator.TypeTranslator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IResultSerializerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.serializer.ResultSerializerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
+
+/*
+ * Provides functionality for executing a batch of AQL statements (queries included)
+ * sequentially.
+ */
+public class AqlTranslator extends AbstractAqlTranslator {
+
+    private final List<Statement> aqlStatements;
+    private final PrintWriter out;
+    private final SessionConfig sessionConfig;
+    private final DisplayFormat pdf;
+    private Dataverse activeDefaultDataverse;
+    private List<FunctionDecl> declaredFunctions;
+
+    public AqlTranslator(List<Statement> aqlStatements, PrintWriter out, SessionConfig pc, DisplayFormat pdf)
+            throws MetadataException, AsterixException {
+        this.aqlStatements = aqlStatements;
+        this.out = out;
+        this.sessionConfig = pc;
+        this.pdf = pdf;
+        declaredFunctions = getDeclaredFunctions(aqlStatements);
+    }
+
+    private List<FunctionDecl> getDeclaredFunctions(List<Statement> statements) {
+        List<FunctionDecl> functionDecls = new ArrayList<FunctionDecl>();
+        for (Statement st : statements) {
+            if (st.getKind().equals(Statement.Kind.FUNCTION_DECL)) {
+                functionDecls.add((FunctionDecl) st);
+            }
+        }
+        return functionDecls;
+    }
+
+    /**
+     * Compiles and submits for execution a list of AQL statements.
+     * 
+     * @param hcc
+     *            A Hyracks client connection that is used to submit a jobspec to Hyracks.
+     * @param hdc
+     *            A Hyracks dataset client object that is used to read the results.
+     * @param asyncResults
+     *            True if the results should be read asynchronously or false if we should wait for results to be read.
+     * @return A List<QueryResult> containing a QueryResult instance corresponding to each submitted query.
+     * @throws Exception
+     */
+    public List<QueryResult> compileAndExecute(IHyracksClientConnection hcc, IHyracksDataset hdc, boolean asyncResults)
+            throws Exception {
+        int resultSetIdCounter = 0;
+        List<QueryResult> executionResult = new ArrayList<QueryResult>();
+        FileSplit outputFile = null;
+        IAWriterFactory writerFactory = PrinterBasedWriterFactory.INSTANCE;
+        IResultSerializerFactoryProvider resultSerializerFactoryProvider = ResultSerializerFactoryProvider.INSTANCE;
+        Map<String, String> config = new HashMap<String, String>();
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+
+        for (Statement stmt : aqlStatements) {
+            validateOperation(activeDefaultDataverse, stmt);
+            AqlMetadataProvider metadataProvider = new AqlMetadataProvider(activeDefaultDataverse);
+            metadataProvider.setWriterFactory(writerFactory);
+            metadataProvider.setResultSerializerFactoryProvider(resultSerializerFactoryProvider);
+            metadataProvider.setOutputFile(outputFile);
+            metadataProvider.setConfig(config);
+            jobsToExecute.clear();
+            try {
+                switch (stmt.getKind()) {
+                    case SET: {
+                        handleSetStatement(metadataProvider, stmt, config);
+                        break;
+                    }
+                    case DATAVERSE_DECL: {
+                        activeDefaultDataverse = handleUseDataverseStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case CREATE_DATAVERSE: {
+                        handleCreateDataverseStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case DATASET_DECL: {
+                        handleCreateDatasetStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case CREATE_INDEX: {
+                        handleCreateIndexStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case TYPE_DECL: {
+                        handleCreateTypeStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case NODEGROUP_DECL: {
+                        handleCreateNodeGroupStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case DATAVERSE_DROP: {
+                        handleDataverseDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case DATASET_DROP: {
+                        handleDatasetDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case INDEX_DROP: {
+                        handleIndexDropStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case TYPE_DROP: {
+                        handleTypeDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+                    case NODEGROUP_DROP: {
+                        handleNodegroupDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case CREATE_FUNCTION: {
+                        handleCreateFunctionStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case FUNCTION_DROP: {
+                        handleFunctionDropStatement(metadataProvider, stmt);
+                        break;
+                    }
+
+                    case LOAD_FROM_FILE: {
+                        handleLoadFromFileStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case WRITE_FROM_QUERY_RESULT: {
+                        handleWriteFromQueryResultStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case INSERT: {
+                        handleInsertStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+                    case DELETE: {
+                        handleDeleteStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case BEGIN_FEED: {
+                        handleBeginFeedStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case CONTROL_FEED: {
+                        handleControlFeedStatement(metadataProvider, stmt, hcc);
+                        break;
+                    }
+
+                    case QUERY: {
+                        metadataProvider.setResultSetId(new ResultSetId(resultSetIdCounter++));
+                        executionResult.add(handleQuery(metadataProvider, (Query) stmt, hcc, hdc, asyncResults));
+                        break;
+                    }
+
+                    case WRITE: {
+                        Pair<IAWriterFactory, FileSplit> result = handleWriteStatement(metadataProvider, stmt);
+                        if (result.first != null) {
+                            writerFactory = result.first;
+                        }
+                        outputFile = result.second;
+                        break;
+                    }
+
+                }
+            } catch (Exception e) {
+                throw new AlgebricksException(e);
+            }
+        }
+        return executionResult;
+    }
+
+    private void handleSetStatement(AqlMetadataProvider metadataProvider, Statement stmt, Map<String, String> config)
+            throws RemoteException, ACIDException {
+        SetStatement ss = (SetStatement) stmt;
+        String pname = ss.getPropName();
+        String pvalue = ss.getPropValue();
+        config.put(pname, pvalue);
+    }
+
+    private Pair<IAWriterFactory, FileSplit> handleWriteStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws InstantiationException, IllegalAccessException, ClassNotFoundException {
+        WriteStatement ws = (WriteStatement) stmt;
+        File f = new File(ws.getFileName());
+        FileSplit outputFile = new FileSplit(ws.getNcName().getValue(), new FileReference(f));
+        IAWriterFactory writerFactory = null;
+        if (ws.getWriterClassName() != null) {
+            writerFactory = (IAWriterFactory) Class.forName(ws.getWriterClassName()).newInstance();
+        }
+        return new Pair<IAWriterFactory, FileSplit>(writerFactory, outputFile);
+    }
+
+    private Dataverse handleUseDataverseStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            DataverseDecl dvd = (DataverseDecl) stmt;
+            String dvName = dvd.getDataverseName().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+            if (dv == null) {
+                throw new MetadataException("Unknown dataverse " + dvName);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            return dv;
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new MetadataException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleCreateDataverseStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
+            String dvName = stmtCreateDataverse.getDataverseName().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+            if (dv != null && !stmtCreateDataverse.getIfNotExists()) {
+                throw new AlgebricksException("A dataverse with this name " + dvName + " already exists.");
+            }
+            MetadataManager.INSTANCE.addDataverse(metadataProvider.getMetadataTxnContext(), new Dataverse(dvName,
+                    stmtCreateDataverse.getFormat(), IMetadataEntity.PENDING_NO_OP));
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateDatasetStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws AsterixException, Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        try {
+            DatasetDecl dd = (DatasetDecl) stmt;
+            dataverseName = dd.getDataverse() != null ? dd.getDataverse().getValue()
+                    : activeDefaultDataverse != null ? activeDefaultDataverse.getDataverseName() : null;
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = dd.getName().getValue();
+
+            DatasetType dsType = dd.getDatasetType();
+            String itemTypeName = dd.getItemTypeName().getValue();
+
+            IDatasetDetails datasetDetails = null;
+            Dataset ds = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName);
+            if (ds != null) {
+                if (dd.getIfNotExists()) {
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    return;
+                } else {
+                    throw new AlgebricksException("A dataset with this name " + datasetName + " already exists.");
+                }
+            }
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    itemTypeName);
+            if (dt == null) {
+                throw new AlgebricksException(": type " + itemTypeName + " could not be found.");
+            }
+            switch (dd.getDatasetType()) {
+                case INTERNAL: {
+                    IAType itemType = dt.getDatatype();
+                    if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                        throw new AlgebricksException("Can only partition ARecord's.");
+                    }
+                    List<String> partitioningExprs = ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
+                            .getPartitioningExprs();
+                    String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
+                            InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
+                            ngName);
+                    break;
+                }
+                case EXTERNAL: {
+                    String adapter = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getAdapter();
+                    Map<String, String> properties = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getProperties();
+                    datasetDetails = new ExternalDatasetDetails(adapter, properties);
+                    break;
+                }
+                case FEED: {
+                    IAType itemType = dt.getDatatype();
+                    if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                        throw new AlgebricksException("Can only partition ARecord's.");
+                    }
+                    List<String> partitioningExprs = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                            .getPartitioningExprs();
+                    String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName().getValue();
+                    String adapter = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getAdapterFactoryClassname();
+                    Map<String, String> configuration = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                            .getConfiguration();
+                    FunctionSignature signature = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getFunctionSignature();
+                    datasetDetails = new FeedDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
+                            InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
+                            ngName, adapter, configuration, signature, FeedDatasetDetails.FeedState.INACTIVE.toString());
+                    break;
+                }
+            }
+
+            //#. add a new dataset with PendingAddOp
+            Dataset dataset = new Dataset(dataverseName, datasetName, itemTypeName, datasetDetails, dd.getHints(),
+                    dsType, DatasetIdFactory.generateDatasetId(), IMetadataEntity.PENDING_ADD_OP);
+            MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), dataset);
+
+            if (dd.getDatasetType() == DatasetType.INTERNAL || dd.getDatasetType() == DatasetType.FEED) {
+                Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(),
+                        dataverseName);
+                JobSpecification jobSpec = DatasetOperations.createDatasetJobSpec(dataverse, datasetName,
+                        metadataProvider);
+
+                //#. make metadataTxn commit before calling runJob.
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                //#. runJob
+                runJob(hcc, jobSpec, true);
+
+                //#. begin new metadataTxn
+                mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                bActiveTxn = true;
+                metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            }
+
+            //#. add a new dataset with PendingNoOp after deleting the dataset with PendingAddOp
+            MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName, datasetName);
+            MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), new Dataset(dataverseName,
+                    datasetName, itemTypeName, datasetDetails, dd.getHints(), dsType, dataset.getDatasetId(),
+                    IMetadataEntity.PENDING_NO_OP));
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the index in NC
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dataverseName, datasetName);
+            try {
+                JobSpecification jobSpec = DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                runJob(hcc, jobSpec, true);
+            } catch (Exception e3) {
+                if (bActiveTxn) {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                }
+                //do no throw exception since still the metadata needs to be compensated. 
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateIndexStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        String indexName = null;
+        try {
+            CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
+            dataverseName = stmtCreateIndex.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtCreateIndex.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = stmtCreateIndex.getDatasetName().getValue();
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName);
+            if (ds == null) {
+                throw new AlgebricksException("There is no dataset with this name " + datasetName + " in dataverse "
+                        + dataverseName);
+            }
+
+            indexName = stmtCreateIndex.getIndexName().getValue();
+            Index idx = MetadataManager.INSTANCE.getIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                    datasetName, indexName);
+
+            if (idx != null) {
+                if (!stmtCreateIndex.getIfNotExists()) {
+                    throw new AlgebricksException("An index with this name " + indexName + " already exists.");
+                } else {
+                    stmtCreateIndex.setNeedToCreate(false);
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    return;
+                }
+            }
+
+            //#. add a new index with PendingAddOp
+            Index index = new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
+                    stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false,
+                    IMetadataEntity.PENDING_ADD_OP);
+            MetadataManager.INSTANCE.addIndex(metadataProvider.getMetadataTxnContext(), index);
+
+            //#. create the index artifact in NC.
+            CompiledCreateIndexStatement cis = new CompiledCreateIndexStatement(index.getIndexName(), dataverseName,
+                    index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(), index.getIndexType());
+            JobSpecification spec = IndexOperations.buildSecondaryIndexCreationJobSpec(cis, metadataProvider);
+            if (spec == null) {
+                throw new AsterixException("Failed to create job spec for creating index '"
+                        + stmtCreateIndex.getDatasetName() + "." + stmtCreateIndex.getIndexName() + "'");
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, spec, true);
+
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. load data into the index in NC.
+            cis = new CompiledCreateIndexStatement(index.getIndexName(), dataverseName, index.getDatasetName(),
+                    index.getKeyFieldNames(), index.getGramLength(), index.getIndexType());
+            spec = IndexOperations.buildSecondaryIndexLoadingJobSpec(cis, metadataProvider);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, spec, true);
+
+            //#. begin new metadataTxn
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. add another new index with PendingNoOp after deleting the index with PendingAddOp
+            MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName, datasetName,
+                    indexName);
+            index = new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
+                    stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false,
+                    IMetadataEntity.PENDING_NO_OP);
+            MetadataManager.INSTANCE.addIndex(metadataProvider.getMetadataTxnContext(), index);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the index in NC
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName, indexName);
+            try {
+                JobSpecification jobSpec = IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                runJob(hcc, jobSpec, true);
+            } catch (Exception e3) {
+                if (bActiveTxn) {
+                    MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                }
+                //do no throw exception since still the metadata needs to be compensated. 
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName, indexName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateTypeStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, RemoteException, ACIDException, MetadataException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            TypeDecl stmtCreateType = (TypeDecl) stmt;
+            String dataverseName = stmtCreateType.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtCreateType.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            String typeName = stmtCreateType.getIdent().getValue();
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+            if (dv == null) {
+                throw new AlgebricksException("Unknonw dataverse " + dataverseName);
+            }
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
+            if (dt != null) {
+                if (!stmtCreateType.getIfNotExists()) {
+                    throw new AlgebricksException("A datatype with this name " + typeName + " already exists.");
+                }
+            } else {
+                if (builtinTypeMap.get(typeName) != null) {
+                    throw new AlgebricksException("Cannot redefine builtin type " + typeName + ".");
+                } else {
+                    Map<TypeSignature, IAType> typeMap = TypeTranslator.computeTypes(mdTxnCtx, (TypeDecl) stmt,
+                            dataverseName);
+                    TypeSignature typeSignature = new TypeSignature(dataverseName, typeName);
+                    IAType type = typeMap.get(typeSignature);
+                    MetadataManager.INSTANCE.addDatatype(mdTxnCtx, new Datatype(dataverseName, typeName, type, false));
+                }
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleDataverseDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dvName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
+            dvName = stmtDelete.getDataverseName().getValue();
+
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
+            if (dv == null) {
+                if (!stmtDelete.getIfExists()) {
+                    throw new AlgebricksException("There is no dataverse with this name " + dvName + ".");
+                }
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                return;
+            }
+
+            //#. prepare jobs which will drop corresponding datasets with indexes. 
+            List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dvName);
+            for (int j = 0; j < datasets.size(); j++) {
+                String datasetName = datasets.get(j).getDatasetName();
+                DatasetType dsType = datasets.get(j).getDatasetType();
+                if (dsType == DatasetType.INTERNAL || dsType == DatasetType.FEED) {
+
+                    List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dvName, datasetName);
+                    for (int k = 0; k < indexes.size(); k++) {
+                        if (indexes.get(k).isSecondaryIndex()) {
+                            CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dvName, datasetName,
+                                    indexes.get(k).getIndexName());
+                            jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+                        }
+                    }
+
+                    CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dvName, datasetName);
+                    jobsToExecute.add(DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider));
+                }
+            }
+
+            //#. mark PendingDropOp on the dataverse record by 
+            //   first, deleting the dataverse record from the DATAVERSE_DATASET
+            //   second, inserting the dataverse record with the PendingDropOp value into the DATAVERSE_DATASET
+            MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
+            MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dvName, dv.getDataFormat(),
+                    IMetadataEntity.PENDING_DROP_OP));
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            bActiveTxn = true;
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+            //#. finally, delete the dataverse.
+            MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
+            if (activeDefaultDataverse != null && activeDefaultDataverse.getDataverseName() == dvName) {
+                activeDefaultDataverse = null;
+            }
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataverse(metadataProvider.getMetadataTxnContext(), dvName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleDatasetDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            DropStatement stmtDelete = (DropStatement) stmt;
+            dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            datasetName = stmtDelete.getDatasetName().getValue();
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            if (ds == null) {
+                if (!stmtDelete.getIfExists()) {
+                    throw new AlgebricksException("There is no dataset with this name " + datasetName
+                            + " in dataverse " + dataverseName + ".");
+                }
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                return;
+            }
+
+            if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+
+                //#. prepare jobs to drop the datatset and the indexes in NC
+                List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
+                for (int j = 0; j < indexes.size(); j++) {
+                    if (indexes.get(j).isSecondaryIndex()) {
+                        CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName,
+                                indexes.get(j).getIndexName());
+                        jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+                    }
+                }
+                CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dataverseName, datasetName);
+                jobsToExecute.add(DatasetOperations.createDropDatasetJobSpec(cds, metadataProvider));
+
+                //#. mark the existing dataset as PendingDropOp
+                MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+                MetadataManager.INSTANCE.addDataset(
+                        mdTxnCtx,
+                        new Dataset(dataverseName, datasetName, ds.getItemTypeName(), ds.getDatasetDetails(), ds
+                                .getHints(), ds.getDatasetType(), ds.getDatasetId(), IMetadataEntity.PENDING_DROP_OP));
+
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                bActiveTxn = false;
+
+                //#. run the jobs
+                for (JobSpecification jobSpec : jobsToExecute) {
+                    runJob(hcc, jobSpec, true);
+                }
+
+                mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                bActiveTxn = true;
+                metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            }
+
+            //#. finally, delete the dataset.
+            MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleIndexDropStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        String dataverseName = null;
+        String datasetName = null;
+        String indexName = null;
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            IndexDropStatement stmtIndexDrop = (IndexDropStatement) stmt;
+            datasetName = stmtIndexDrop.getDatasetName().getValue();
+            dataverseName = stmtIndexDrop.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtIndexDrop.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+
+            Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            if (ds == null) {
+                throw new AlgebricksException("There is no dataset with this name " + datasetName + " in dataverse "
+                        + dataverseName);
+            }
+
+            if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+                indexName = stmtIndexDrop.getIndexName().getValue();
+                Index index = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                if (index == null) {
+                    if (!stmtIndexDrop.getIfExists()) {
+                        throw new AlgebricksException("There is no index with this name " + indexName + ".");
+                    }
+                } else {
+                    //#. prepare a job to drop the index in NC.
+                    CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName,
+                            indexName);
+                    jobsToExecute.add(IndexOperations.buildDropSecondaryIndexJobSpec(cds, metadataProvider));
+
+                    //#. mark PendingDropOp on the existing index
+                    MetadataManager.INSTANCE.dropIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                    MetadataManager.INSTANCE.addIndex(
+                            mdTxnCtx,
+                            new Index(dataverseName, datasetName, indexName, index.getIndexType(), index
+                                    .getKeyFieldNames(), index.isPrimaryIndex(), IMetadataEntity.PENDING_DROP_OP));
+
+                    //#. commit the existing transaction before calling runJob. 
+                    MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+                    bActiveTxn = false;
+
+                    for (JobSpecification jobSpec : jobsToExecute) {
+                        runJob(hcc, jobSpec, true);
+                    }
+
+                    //#. begin a new transaction
+                    mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+                    bActiveTxn = true;
+                    metadataProvider.setMetadataTxnContext(mdTxnCtx);
+
+                    //#. finally, delete the existing index
+                    MetadataManager.INSTANCE.dropIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                }
+            } else {
+                throw new AlgebricksException(datasetName
+                        + " is an external dataset. Indexes are not maintained for external datasets.");
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            //#. execute compensation operations
+            //   remove the all indexes in NC
+            for (JobSpecification jobSpec : jobsToExecute) {
+                runJob(hcc, jobSpec, true);
+            }
+
+            //   remove the record from the metadata.
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            metadataProvider.setMetadataTxnContext(mdTxnCtx);
+            try {
+                MetadataManager.INSTANCE.dropIndex(metadataProvider.getMetadataTxnContext(), dataverseName,
+                        datasetName, indexName);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e2) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw new AlgebricksException(e2);
+            }
+
+            throw new AlgebricksException(e);
+
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleTypeDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, MetadataException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            TypeDropStatement stmtTypeDrop = (TypeDropStatement) stmt;
+            String dataverseName = stmtTypeDrop.getDataverseName() == null ? (activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName()) : stmtTypeDrop.getDataverseName().getValue();
+            if (dataverseName == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            String typeName = stmtTypeDrop.getTypeName().getValue();
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
+            if (dt == null) {
+                if (!stmtTypeDrop.getIfExists())
+                    throw new AlgebricksException("There is no datatype with this name " + typeName + ".");
+            } else {
+                MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, dataverseName, typeName);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleNodegroupDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
+            String nodegroupName = stmtDelete.getNodeGroupName().getValue();
+            NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodegroupName);
+            if (ng == null) {
+                if (!stmtDelete.getIfExists())
+                    throw new AlgebricksException("There is no nodegroup with this name " + nodegroupName + ".");
+            } else {
+                MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, nodegroupName);
+            }
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleCreateFunctionStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws AlgebricksException, MetadataException, RemoteException, ACIDException {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
+            String dataverse = cfs.getSignature().getNamespace() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : cfs.getSignature().getNamespace();
+            if (dataverse == null) {
+                throw new AlgebricksException(" dataverse not specified ");
+            }
+            Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverse);
+            if (dv == null) {
+                throw new AlgebricksException("There is no dataverse with this name " + dataverse + ".");
+            }
+            Function function = new Function(dataverse, cfs.getaAterixFunction().getName(), cfs.getaAterixFunction()
+                    .getArity(), cfs.getParamList(), Function.RETURNTYPE_VOID, cfs.getFunctionBody(),
+                    Function.LANGUAGE_AQL, FunctionKind.SCALAR.toString());
+            MetadataManager.INSTANCE.addFunction(mdTxnCtx, function);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleFunctionDropStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, RemoteException, ACIDException, AlgebricksException {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
+            FunctionSignature signature = stmtDropFunction.getFunctionSignature();
+            Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
+            if (function == null) {
+                if (!stmtDropFunction.getIfExists())
+                    throw new AlgebricksException("Unknonw function " + signature);
+            } else {
+                MetadataManager.INSTANCE.dropFunction(mdTxnCtx, signature);
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private void handleLoadFromFileStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+        List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
+        try {
+            LoadFromFileStatement loadStmt = (LoadFromFileStatement) stmt;
+            String dataverseName = loadStmt.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : loadStmt.getDataverseName().getValue();
+            CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(dataverseName, loadStmt
+                    .getDatasetName().getValue(), loadStmt.getAdapter(), loadStmt.getProperties(),
+                    loadStmt.dataIsAlreadySorted());
+
+            IDataFormat format = getDataFormat(metadataProvider.getMetadataTxnContext(), dataverseName);
+            Job job = DatasetOperations.createLoadDatasetJobSpec(metadataProvider, cls, format);
+            jobsToExecute.add(job.getJobSpec());
+            // Also load the dataset's secondary indexes.
+            List<Index> datasetIndexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, loadStmt
+                    .getDatasetName().getValue());
+            for (Index index : datasetIndexes) {
+                if (!index.isSecondaryIndex()) {
+                    continue;
+                }
+                // Create CompiledCreateIndexStatement from metadata entity 'index'.
+                CompiledCreateIndexStatement cis = new CompiledCreateIndexStatement(index.getIndexName(),
+                        dataverseName, index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(),
+                        index.getIndexType());
+                jobsToExecute.add(IndexOperations.buildSecondaryIndexLoadingJobSpec(cis, metadataProvider));
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            for (JobSpecification jobspec : jobsToExecute) {
+                runJob(hcc, jobspec, true);
+            }
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleWriteFromQueryResultStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            WriteFromQueryResultStatement st1 = (WriteFromQueryResultStatement) stmt;
+            String dataverseName = st1.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : st1.getDataverseName().getValue();
+            CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(dataverseName, st1
+                    .getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
+
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleInsertStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            InsertStatement stmtInsert = (InsertStatement) stmt;
+            String dataverseName = stmtInsert.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtInsert.getDataverseName().getValue();
+            CompiledInsertStatement clfrqs = new CompiledInsertStatement(dataverseName, stmtInsert.getDatasetName()
+                    .getValue(), stmtInsert.getQuery(), stmtInsert.getVarCounter());
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleDeleteStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            metadataProvider.setWriteTransaction(true);
+            DeleteStatement stmtDelete = (DeleteStatement) stmt;
+            String dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
+            CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(stmtDelete.getVariableExpr(), dataverseName,
+                    stmtDelete.getDatasetName().getValue(), stmtDelete.getCondition(), stmtDelete.getDieClause(),
+                    stmtDelete.getVarCounter(), metadataProvider);
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private JobSpecification rewriteCompileQuery(AqlMetadataProvider metadataProvider, Query query,
+            ICompiledDmlStatement stmt) throws AsterixException, RemoteException, AlgebricksException, JSONException,
+            ACIDException {
+
+        // Query Rewriting (happens under the same ongoing metadata transaction)
+        Pair<Query, Integer> reWrittenQuery = APIFramework.reWriteQuery(declaredFunctions, metadataProvider, query,
+                sessionConfig, out, pdf);
+
+        // Query Compilation (happens under the same ongoing metadata
+        // transaction)
+        JobSpecification spec = APIFramework.compileQuery(declaredFunctions, metadataProvider, query,
+                reWrittenQuery.second, stmt == null ? null : stmt.getDatasetName(), sessionConfig, out, pdf, stmt);
+
+        return spec;
+
+    }
+
+    private void handleBeginFeedStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            BeginFeedStatement bfs = (BeginFeedStatement) stmt;
+            String dataverseName = bfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : bfs.getDataverseName().getValue();
+
+            CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(dataverseName, bfs.getDatasetName()
+                    .getValue(), bfs.getQuery(), bfs.getVarCounter());
+
+            Dataset dataset;
+            dataset = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName, bfs
+                    .getDatasetName().getValue());
+            if (dataset == null) {
+                throw new AsterixException("Unknown dataset :" + bfs.getDatasetName().getValue());
+            }
+            IDatasetDetails datasetDetails = dataset.getDatasetDetails();
+            if (datasetDetails.getDatasetType() != DatasetType.FEED) {
+                throw new IllegalArgumentException("Dataset " + bfs.getDatasetName().getValue()
+                        + " is not a feed dataset");
+            }
+            bfs.initialize(metadataProvider.getMetadataTxnContext(), dataset);
+            cbfs.setQuery(bfs.getQuery());
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, bfs.getQuery(), cbfs);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                runJob(hcc, compiled, true);
+            }
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleControlFeedStatement(AqlMetadataProvider metadataProvider, Statement stmt,
+            IHyracksClientConnection hcc) throws Exception {
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            ControlFeedStatement cfs = (ControlFeedStatement) stmt;
+            String dataverseName = cfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
+                    : activeDefaultDataverse.getDataverseName() : cfs.getDatasetName().getValue();
+            CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(),
+                    dataverseName, cfs.getDatasetName().getValue(), cfs.getAlterAdapterConfParams());
+            JobSpecification jobSpec = FeedOperations.buildControlFeedJobSpec(clcfs, metadataProvider);
+
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            runJob(hcc, jobSpec, true);
+
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private QueryResult handleQuery(AqlMetadataProvider metadataProvider, Query query, IHyracksClientConnection hcc,
+            IHyracksDataset hdc, boolean asyncResults) throws Exception {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        boolean bActiveTxn = true;
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireReadLatch();
+
+        try {
+            JobSpecification compiled = rewriteCompileQuery(metadataProvider, query, null);
+
+            QueryResult queryResult = new QueryResult(query, metadataProvider.getResultSetId());
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            bActiveTxn = false;
+
+            if (compiled != null) {
+                GlobalConfig.ASTERIX_LOGGER.info(compiled.toJSON().toString(1));
+                JobId jobId = runJob(hcc, compiled, false);
+
+                JSONObject response = new JSONObject();
+                if (asyncResults) {
+                    JSONArray handle = new JSONArray();
+                    handle.put(jobId.getId());
+                    handle.put(metadataProvider.getResultSetId().getId());
+                    response.put("handle", handle);
+                } else {
+                    ByteBuffer buffer = ByteBuffer.allocate(ResultReader.FRAME_SIZE);
+                    ResultReader resultReader = new ResultReader(hcc, hdc);
+                    resultReader.open(jobId, metadataProvider.getResultSetId());
+                    buffer.clear();
+                    JSONArray results = new JSONArray();
+                    while (resultReader.read(buffer) > 0) {
+                        results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor()));
+                        buffer.clear();
+                    }
+                    response.put("results", results);
+                }
+                switch (pdf) {
+                    case HTML:
+                        out.println("<pre>");
+                        ResultUtils.prettyPrintHTML(out, response);
+                        out.println("</pre>");
+                        break;
+                    case TEXT:
+                    case JSON:
+                        out.print(response);
+                        break;
+                }
+                hcc.waitForCompletion(jobId);
+            }
+
+            return queryResult;
+        } catch (Exception e) {
+            if (bActiveTxn) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            }
+            throw new AlgebricksException(e);
+        } finally {
+            releaseReadLatch();
+        }
+    }
+
+    private void handleCreateNodeGroupStatement(AqlMetadataProvider metadataProvider, Statement stmt)
+            throws MetadataException, AlgebricksException, RemoteException, ACIDException {
+
+        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+        metadataProvider.setMetadataTxnContext(mdTxnCtx);
+        acquireWriteLatch();
+
+        try {
+            NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
+            String ngName = stmtCreateNodegroup.getNodegroupName().getValue();
+            NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, ngName);
+            if (ng != null) {
+                if (!stmtCreateNodegroup.getIfNotExists())
+                    throw new AlgebricksException("A nodegroup with this name " + ngName + " already exists.");
+            } else {
+                List<Identifier> ncIdentifiers = stmtCreateNodegroup.getNodeControllerNames();
+                List<String> ncNames = new ArrayList<String>(ncIdentifiers.size());
+                for (Identifier id : ncIdentifiers) {
+                    ncNames.add(id.getValue());
+                }
+                MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(ngName, ncNames));
+            }
+            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new AlgebricksException(e);
+        } finally {
+            releaseWriteLatch();
+        }
+    }
+
+    private JobId runJob(IHyracksClientConnection hcc, JobSpecification spec, boolean waitForCompletion)
+            throws Exception {
+        JobId[] jobIds = executeJobArray(hcc, new Job[] { new Job(spec) }, out, pdf, waitForCompletion);
+        return jobIds[0];
+    }
+
+    public JobId[] executeJobArray(IHyracksClientConnection hcc, Job[] jobs, PrintWriter out, DisplayFormat pdf,
+            boolean waitForCompletion) throws Exception {
+        JobId[] startedJobIds = new JobId[jobs.length];
+        for (int i = 0; i < jobs.length; i++) {
+            JobSpecification spec = jobs[i].getJobSpec();
+            spec.setMaxReattempts(0);
+            JobId jobId = hcc.startJob(spec);
+            startedJobIds[i] = jobId;
+            if (waitForCompletion) {
+                hcc.waitForCompletion(jobId);
+            }
+        }
+        return startedJobIds;
+    }
+
+    private static IDataFormat getDataFormat(MetadataTransactionContext mdTxnCtx, String dataverseName)
+            throws AsterixException {
+        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return format;
+    }
+
+    private void acquireWriteLatch() {
+        MetadataManager.INSTANCE.acquireWriteLatch();
+    }
+
+    private void releaseWriteLatch() {
+        MetadataManager.INSTANCE.releaseWriteLatch();
+    }
+
+    private void acquireReadLatch() {
+        MetadataManager.INSTANCE.acquireReadLatch();
+    }
+
+    private void releaseReadLatch() {
+        MetadataManager.INSTANCE.releaseReadLatch();
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
deleted file mode 100644
index 9565dde..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
+++ /dev/null
@@ -1,1012 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.aql.translator;
-
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.api.common.SessionConfig;
-import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
-import edu.uci.ics.asterix.aql.base.Statement;
-import edu.uci.ics.asterix.aql.base.Statement.Kind;
-import edu.uci.ics.asterix.aql.expression.CreateDataverseStatement;
-import edu.uci.ics.asterix.aql.expression.CreateFunctionStatement;
-import edu.uci.ics.asterix.aql.expression.CreateIndexStatement;
-import edu.uci.ics.asterix.aql.expression.DatasetDecl;
-import edu.uci.ics.asterix.aql.expression.DataverseDecl;
-import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
-import edu.uci.ics.asterix.aql.expression.DropStatement;
-import edu.uci.ics.asterix.aql.expression.ExternalDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.FeedDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.FunctionDropStatement;
-import edu.uci.ics.asterix.aql.expression.Identifier;
-import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
-import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
-import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
-import edu.uci.ics.asterix.aql.expression.NodegroupDecl;
-import edu.uci.ics.asterix.aql.expression.OrderedListTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.Query;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.TypeDecl;
-import edu.uci.ics.asterix.aql.expression.TypeDropStatement;
-import edu.uci.ics.asterix.aql.expression.TypeExpression;
-import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
-import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
-import edu.uci.ics.asterix.aql.expression.RecordTypeDefinition.RecordKind;
-import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.common.parse.IParseFileSplitsDecl;
-import edu.uci.ics.asterix.file.DatasetOperations;
-import edu.uci.ics.asterix.file.IndexOperations;
-import edu.uci.ics.asterix.metadata.IDatasetDetails;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
-import edu.uci.ics.asterix.metadata.entities.Dataset;
-import edu.uci.ics.asterix.metadata.entities.Datatype;
-import edu.uci.ics.asterix.metadata.entities.Dataverse;
-import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
-import edu.uci.ics.asterix.metadata.entities.Function;
-import edu.uci.ics.asterix.metadata.entities.Index;
-import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap.ARTIFACT_KIND;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.types.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-
-public class DdlTranslator extends AbstractAqlTranslator {
-
-    private final MetadataTransactionContext mdTxnCtx;
-    private final List<Statement> aqlStatements;
-    private final PrintWriter out;
-    private final SessionConfig pc;
-    private final DisplayFormat pdf;
-    private AqlCompiledMetadataDeclarations compiledDeclarations;
-
-    private static Map<String, BuiltinType> builtinTypeMap;
-
-    public DdlTranslator(MetadataTransactionContext mdTxnCtx, List<Statement> aqlStatements, PrintWriter out,
-            SessionConfig pc, DisplayFormat pdf) {
-        this.mdTxnCtx = mdTxnCtx;
-        this.aqlStatements = aqlStatements;
-        this.out = out;
-        this.pc = pc;
-        this.pdf = pdf;
-        builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
-    }
-
-    public void translate(IHyracksClientConnection hcc, boolean disconnectFromDataverse) throws AlgebricksException {
-        try {
-            compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, true);
-            compileAndExecuteDDLstatements(hcc, mdTxnCtx, disconnectFromDataverse);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-    }
-
-    private void compileAndExecuteDDLstatements(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            boolean disconnectFromDataverse) throws Exception {
-        for (Statement stmt : aqlStatements) {
-            validateOperation(compiledDeclarations, stmt);
-            switch (stmt.getKind()) {
-            // connect statement
-                case DATAVERSE_DECL: {
-                    checkForDataverseConnection(false);
-                    DataverseDecl dvd = (DataverseDecl) stmt;
-                    String dataverseName = dvd.getDataverseName().getValue();
-                    compiledDeclarations.connectToDataverse(dataverseName);
-                    break;
-                }
-                // create statements
-                case CREATE_DATAVERSE: {
-                    checkForDataverseConnection(false);
-                    CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
-                    String dvName = stmtCreateDataverse.getDataverseName().getValue();
-                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
-                    if (dv != null) {
-                        if (!stmtCreateDataverse.getIfNotExists())
-                            throw new AlgebricksException("\nA dataverse with this name " + dvName + " already exists.");
-                    } else {
-                        MetadataManager.INSTANCE.addDataverse(mdTxnCtx,
-                                new Dataverse(dvName, stmtCreateDataverse.getFormat()));
-                    }
-                    break;
-                }
-                case DATASET_DECL: {
-                    checkForDataverseConnection(true);
-                    DatasetDecl dd = (DatasetDecl) stmt;
-                    String datasetName = dd.getName().getValue();
-                    DatasetType dsType = dd.getDatasetType();
-                    String itemTypeName = null;
-                    IDatasetDetails datasetDetails = null;
-
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds != null) {
-                        if (!dd.getIfNotExists())
-                            throw new AlgebricksException("\nA dataset with this name " + datasetName
-                                    + " already exists.");
-                    } else {
-                        itemTypeName = dd.getItemTypeName().getValue();
-                        Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), itemTypeName);
-                        if (dt == null)
-                            throw new AlgebricksException(": type " + itemTypeName + " could not be found.");
-
-                        switch (dd.getDatasetType()) {
-                            case INTERNAL: {
-                                IAType itemType = dt.getDatatype();
-                                if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                                    throw new AlgebricksException("Can only partition ARecord's.");
-                                }
-                                List<String> partitioningExprs = ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getPartitioningExprs();
-                                String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
-                                        .getValue();
-                                datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
-                                        InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
-                                        partitioningExprs, ngName);
-                            }
-                                break;
-                            case EXTERNAL: {
-                                String adapter = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getAdapter();
-                                Map<String, String> properties = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getProperties();
-                                datasetDetails = new ExternalDatasetDetails(adapter, properties);
-                            }
-                                break;
-                            case FEED: {
-                                IAType itemType = dt.getDatatype();
-                                if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                                    throw new AlgebricksException("Can only partition ARecord's.");
-                                }
-                                List<String> partitioningExprs = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getPartitioningExprs();
-                                String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
-                                        .getValue();
-                                String adapter = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getAdapterClassname();
-                                Map<String, String> properties = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getProperties();
-                                String functionIdentifier = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
-                                        .getFunctionIdentifier();
-                                datasetDetails = new FeedDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
-                                        InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
-                                        partitioningExprs, ngName, adapter, properties, functionIdentifier,
-                                        FeedDatasetDetails.FeedState.INACTIVE.toString());
-
-                            }
-                                break;
-                        }
-                        MetadataManager.INSTANCE.addDataset(mdTxnCtx,
-                                new Dataset(compiledDeclarations.getDataverseName(), datasetName, itemTypeName,
-                                        datasetDetails, dsType));
-
-                        // If the dataset is of type INTERNAL or FEED, Asterix
-                        // needs to create Tree indexes at all nodes
-                        // corresponding to the associated node group. This is
-                        // not required for external datasets as
-                        // the data for such a dataset is never persisted in
-                        // Asterix storage.
-                        if (dd.getDatasetType() == DatasetType.INTERNAL || dd.getDatasetType() == DatasetType.FEED) {
-                            compileDatasetInitializeStatement(hcc, mdTxnCtx.getTxnId(), datasetName);
-                        }
-                    }
-                    break;
-                }
-
-                case CREATE_INDEX: {
-                    checkForDataverseConnection(true);
-                    CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
-                    String datasetName = stmtCreateIndex.getDatasetName().getValue();
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null)
-                        throw new AlgebricksException("\nThere is no dataset with this name " + datasetName);
-                    String indexName = stmtCreateIndex.getIndexName().getValue();
-                    Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName, indexName);
-                    if (idx != null) {
-                        if (!stmtCreateIndex.getIfNotExists())
-                            throw new AlgebricksException("\nAn index with this name " + indexName + " already exists.");
-                        else
-                            stmtCreateIndex.setNeedToCreate(false);
-                    } else {
-                        MetadataManager.INSTANCE.addIndex(mdTxnCtx, new Index(compiledDeclarations.getDataverseName(),
-                                datasetName, indexName, stmtCreateIndex.getIndexType(),
-                                stmtCreateIndex.getFieldExprs(), false));
-                    }
-                    break;
-                }
-                case TYPE_DECL: {
-                    checkForDataverseConnection(true);
-                    TypeDecl stmtCreateType = (TypeDecl) stmt;
-                    String typeName = stmtCreateType.getIdent().getValue();
-                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), typeName);
-                    if (dt != null) {
-                        if (!stmtCreateType.getIfNotExists())
-                            throw new AlgebricksException("\nA datatype with this name " + typeName
-                                    + " already exists.");
-                    } else {
-                        if (builtinTypeMap.get(typeName) != null) {
-                            throw new AlgebricksException("Cannot redefine builtin type " + typeName + ".");
-                        } else {
-                            Map<String, IAType> typeMap = computeTypes(mdTxnCtx, (TypeDecl) stmt);
-                            IAType type = typeMap.get(typeName);
-                            MetadataManager.INSTANCE.addDatatype(mdTxnCtx,
-                                    new Datatype(compiledDeclarations.getDataverseName(), typeName, type, false));
-                        }
-                    }
-                    break;
-                }
-                case NODEGROUP_DECL: {
-                    NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
-                    String ngName = stmtCreateNodegroup.getNodegroupName().getValue();
-                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, ngName);
-                    if (ng != null) {
-                        if (!stmtCreateNodegroup.getIfNotExists())
-                            throw new AlgebricksException("\nA nodegroup with this name " + ngName + " already exists.");
-                    } else {
-                        List<Identifier> ncIdentifiers = stmtCreateNodegroup.getNodeControllerNames();
-                        List<String> ncNames = new ArrayList<String>(ncIdentifiers.size());
-                        for (Identifier id : ncIdentifiers) {
-                            ncNames.add(id.getValue());
-                        }
-                        MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(ngName, ncNames));
-                    }
-                    break;
-                }
-                // drop statements
-                case DATAVERSE_DROP: {
-                    DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
-                    String dvName = stmtDelete.getDataverseName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.DATAVERSE, dvName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop dataverse " + dvName
-                                + " (protected by system)");
-                    }
-
-                    if (compiledDeclarations.isConnectedToDataverse())
-                        compiledDeclarations.disconnectFromDataverse();
-                    checkForDataverseConnection(false);
-
-                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
-                    if (dv == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no dataverse with this name " + dvName + ".");
-                    } else {
-                        compiledDeclarations.connectToDataverse(dvName);
-                        List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dvName);
-                        for (int j = 0; j < datasets.size(); j++) {
-                            String datasetName = datasets.get(j).getDatasetName();
-                            DatasetType dsType = datasets.get(j).getType();
-                            if (dsType == DatasetType.INTERNAL || dsType == DatasetType.FEED) {
-                                List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dvName,
-                                        datasetName);
-                                for (int k = 0; k < indexes.size(); k++) {
-                                    if (indexes.get(k).isSecondaryIndex()) {
-                                        compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexes.get(k)
-                                                .getIndexName());
-                                    }
-                                }
-                            }
-                            compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-                        }
-                        MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
-                        if (compiledDeclarations.isConnectedToDataverse())
-                            compiledDeclarations.disconnectFromDataverse();
-                    }
-                    break;
-                }
-                case DATASET_DROP: {
-                    checkForDataverseConnection(true);
-                    DropStatement stmtDelete = (DropStatement) stmt;
-                    String datasetName = stmtDelete.getDatasetName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.DATASET, datasetName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop dataset " + datasetName
-                                + " (protected by system)");
-                    }
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no dataset with this name " + datasetName + ".");
-                    } else {
-                        if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-                            List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx,
-                                    compiledDeclarations.getDataverseName(), datasetName);
-                            for (int j = 0; j < indexes.size(); j++) {
-                                if (indexes.get(j).isPrimaryIndex()) {
-                                    compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexes.get(j).getIndexName());
-                                }
-                            }
-                        }
-                        compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-                    }
-                    break;
-                }
-                case INDEX_DROP: {
-                    checkForDataverseConnection(true);
-                    IndexDropStatement stmtDelete = (IndexDropStatement) stmt;
-                    String datasetName = stmtDelete.getDatasetName().getValue();
-                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                            datasetName);
-                    if (ds == null)
-                        throw new AlgebricksException("\nThere is no dataset with this name " + datasetName + ".");
-                    if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-                        String indexName = stmtDelete.getIndexName().getValue();
-                        Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), datasetName, indexName);
-                        if (idx == null) {
-                            if (!stmtDelete.getIfExists())
-                                throw new AlgebricksException("\nThere is no index with this name " + indexName + ".");
-                        } else
-                            compileIndexDropStatement(hcc, mdTxnCtx, datasetName, indexName);
-                    } else {
-                        throw new AlgebricksException(datasetName
-                                + " is an external dataset. Indexes are not maintained for external datasets.");
-                    }
-                    break;
-                }
-                case TYPE_DROP: {
-                    checkForDataverseConnection(true);
-                    TypeDropStatement stmtDelete = (TypeDropStatement) stmt;
-                    String typeName = stmtDelete.getTypeName().getValue();
-                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), typeName);
-                    if (dt == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no datatype with this name " + typeName + ".");
-                    } else
-                        MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                                typeName);
-                    break;
-                }
-                case NODEGROUP_DROP: {
-                    NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
-                    String nodegroupName = stmtDelete.getNodeGroupName().getValue();
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.NODEGROUP, nodegroupName)) {
-                        throw new AsterixException(" Invalid Operation cannot drop nodegroup " + nodegroupName
-                                + " (protected by system)");
-                    }
-                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodegroupName);
-                    if (ng == null) {
-                        if (!stmtDelete.getIfExists())
-                            throw new AlgebricksException("\nThere is no nodegroup with this name " + nodegroupName
-                                    + ".");
-                    } else
-                        MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, nodegroupName);
-                    break;
-                }
-
-                case CREATE_FUNCTION: {
-                    CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
-                    Function function = new Function(compiledDeclarations.getDataverseName(), cfs.getFunctionIdentifier().getFunctionName(),
-                            cfs.getFunctionIdentifier().getArity(), cfs.getParamList(), cfs.getFunctionBody());
-                    
-                    
-                    try {
-                        FunctionUtils.getFunctionDecl(function);
-                    } catch (Exception e) {
-                        throw new AsterixException("unable to compile function definition", e);
-                    }
-                    MetadataManager.INSTANCE.addFunction(mdTxnCtx, new Function(
-                            compiledDeclarations.getDataverseName(), cfs.getFunctionIdentifier().getFunctionName(), cfs
-                                    .getFunctionIdentifier().getArity(), cfs.getParamList(), cfs.getFunctionBody()));
-                    break;
-                }
-
-                case FUNCTION_DROP: {
-                    checkForDataverseConnection(true);
-                    FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
-                    String functionName = stmtDropFunction.getFunctionName().getValue();
-                    FunctionIdentifier fId = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, functionName,
-                            stmtDropFunction.getArity(), false);
-                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.FUNCTION, fId)) {
-                        throw new AsterixException(" Invalid Operation cannot drop function " + functionName
-                                + " (protected by system)");
-                    }
-                    Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), functionName, stmtDropFunction.getArity());
-                    if (function == null) {
-                        if (!stmtDropFunction.getIfExists())
-                            throw new AlgebricksException("\nThere is no function with this name " + functionName + ".");
-                    } else {
-                        MetadataManager.INSTANCE.dropFunction(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                                functionName, stmtDropFunction.getArity());
-                    }
-                    break;
-                }
-            }
-        }
-
-        if (disconnectFromDataverse) {
-            // disconnect the dataverse
-            if (compiledDeclarations.isConnectedToDataverse())
-                compiledDeclarations.disconnectFromDataverse();
-        }
-    }
-
-    private void checkForDataverseConnection(boolean needConnection) throws AlgebricksException {
-        if (compiledDeclarations.isConnectedToDataverse() != needConnection) {
-            if (needConnection)
-                throw new AlgebricksException("You need first to connect to a dataverse.");
-            else
-                throw new AlgebricksException("You need first to disconnect from the dataverse.");
-        }
-    }
-
-    private void runJob(IHyracksClientConnection hcc, JobSpecification jobSpec) throws Exception {
-        System.out.println(jobSpec.toString());
-        executeJobArray(hcc, new JobSpecification[] { jobSpec }, out, pdf);
-    }
-
-    public void executeJobArray(IHyracksClientConnection hcc, JobSpecification[] specs, PrintWriter out,
-            DisplayFormat pdf) throws Exception {
-        for (int i = 0; i < specs.length; i++) {
-            specs[i].setMaxReattempts(0);
-            JobId jobId = hcc.createJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
-            hcc.start(jobId);
-            hcc.waitForCompletion(jobId);
-        }
-    }
-
-    private void compileDatasetDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            String datasetName) throws Exception {
-        CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(datasetName);
-        Dataset ds = MetadataManager.INSTANCE
-                .getDataset(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName);
-        if (ds.getType() == DatasetType.INTERNAL || ds.getType() == DatasetType.FEED) {
-            JobSpecification[] jobs = DatasetOperations.createDropDatasetJobSpec(cds, compiledDeclarations);
-            for (JobSpecification job : jobs)
-                runJob(hcc, job);
-        }
-        MetadataManager.INSTANCE.dropDataset(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName);
-    }
-
-    private void compileDatasetInitializeStatement(IHyracksClientConnection hcc, long txnId, String datasetName)
-            throws Exception {
-        JobSpecification[] jobs = DatasetOperations.createInitializeDatasetJobSpec(txnId, datasetName,
-                compiledDeclarations);
-        for (JobSpecification job : jobs) {
-            runJob(hcc, job);
-        }
-    }
-
-    public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
-        return compiledDeclarations;
-    }
-
-    private void compileIndexDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
-            String datasetName, String indexName) throws Exception {
-        CompiledIndexDropStatement cds = new CompiledIndexDropStatement(datasetName, indexName);
-        runJob(hcc, IndexOperations.createSecondaryIndexDropJobSpec(cds, compiledDeclarations));
-        MetadataManager.INSTANCE.dropIndex(mdTxnCtx, compiledDeclarations.getDataverseName(), datasetName, indexName);
-    }
-
-    private Map<String, IAType> computeTypes(MetadataTransactionContext mdTxnCtx, TypeDecl tDec)
-            throws AlgebricksException, MetadataException {
-        Map<String, IAType> typeMap = new HashMap<String, IAType>();
-        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
-        Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
-        Map<String, List<String>> incompleteTopLevelTypeReferences = new HashMap<String, List<String>>();
-
-        firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-        secondPass(mdTxnCtx, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
-
-        return typeMap;
-    }
-
-    private void secondPass(MetadataTransactionContext mdTxnCtx, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException, MetadataException {
-        // solve remaining top level references
-        for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
-                typeMap.put(tname, t);
-            }
-        }
-        // solve remaining field type references
-        for (String trefName : incompleteFieldTypes.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes.get(trefName);
-            for (ARecordType recType : fieldsToFix.keySet()) {
-                List<Integer> positions = fieldsToFix.get(recType);
-                IAType[] fldTypes = recType.getFieldTypes();
-                for (Integer pos : positions) {
-                    if (fldTypes[pos] == null) {
-                        fldTypes[pos] = t;
-                    } else { // nullable
-                        AUnionType nullableUnion = (AUnionType) fldTypes[pos];
-                        nullableUnion.setTypeAtIndex(t, 1);
-                    }
-                }
-            }
-        }
-        // solve remaining item type references
-        for (String trefName : incompleteItemTypes.keySet()) {
-            IAType t;// = typeMap.get(trefName);
-            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, compiledDeclarations.getDataverseName(),
-                    trefName);
-            if (dt == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
-            } else
-                t = dt.getDatatype();
-            for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
-                act.setItemType(t);
-            }
-        }
-    }
-
-    private void firstPass(TypeDecl td, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException {
-
-        TypeExpression texpr = td.getTypeDef();
-        String tdname = td.getIdent().getValue();
-        if (builtinTypeMap.get(tdname) != null) {
-            throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
-        }
-        switch (texpr.getTypeKind()) {
-            case TYPEREFERENCE: {
-                TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                IAType t = solveTypeReference(tre, typeMap);
-                if (t != null) {
-                    typeMap.put(tdname, t);
-                } else {
-                    addIncompleteTopLevelTypeReference(tdname, tre, incompleteTopLevelTypeReferences);
-                }
-                break;
-            }
-            case RECORD: {
-                RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
-                ARecordType recType = computeRecordType(tdname, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                typeMap.put(tdname, recType);
-                break;
-            }
-            case ORDEREDLIST: {
-                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                AOrderedListType olType = computeOrderedListType(tdname, oltd, typeMap, incompleteItemTypes,
-                        incompleteFieldTypes);
-                typeMap.put(tdname, olType);
-                break;
-            }
-            case UNORDEREDLIST: {
-                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                AUnorderedListType ulType = computeUnorderedListType(tdname, ultd, typeMap, incompleteItemTypes,
-                        incompleteFieldTypes);
-                typeMap.put(tdname, ulType);
-                break;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-    }
-
-    private AOrderedListType computeOrderedListType(String typeName, OrderedListTypeDefinition oltd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = oltd.getItemTypeExpression();
-        AOrderedListType aolt = new AOrderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, aolt);
-        return aolt;
-    }
-
-    private AUnorderedListType computeUnorderedListType(String typeName, UnorderedListTypeDefinition ultd,
-            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        TypeExpression tExpr = ultd.getItemTypeExpression();
-        AUnorderedListType ault = new AUnorderedListType(null, typeName);
-        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, ault);
-        return ault;
-    }
-
-    private void setCollectionItemType(TypeExpression tExpr, Map<String, IAType> typeMap,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, AbstractCollectionType act) {
-        switch (tExpr.getTypeKind()) {
-            case ORDEREDLIST: {
-                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
-                IAType t = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case UNORDEREDLIST: {
-                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
-                IAType t = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                act.setItemType(t);
-                break;
-            }
-            case RECORD: {
-                RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
-                IAType t = computeRecordType(null, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                act.setItemType(t);
-                break;
-            }
-            case TYPEREFERENCE: {
-                TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
-                IAType tref = solveTypeReference(tre, typeMap);
-                if (tref != null) {
-                    act.setItemType(tref);
-                } else {
-                    addIncompleteCollectionTypeReference(act, tre, incompleteItemTypes);
-                }
-                break;
-            }
-            default: {
-                throw new IllegalStateException();
-            }
-        }
-    }
-
-    private ARecordType computeRecordType(String typeName, RecordTypeDefinition rtd, Map<String, IAType> typeMap,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        List<String> names = rtd.getFieldNames();
-        int n = names.size();
-        String[] fldNames = new String[n];
-        IAType[] fldTypes = new IAType[n];
-        int i = 0;
-        for (String s : names) {
-            fldNames[i++] = s;
-        }
-        boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
-        ARecordType recType = new ARecordType(typeName, fldNames, fldTypes, isOpen);
-        for (int j = 0; j < n; j++) {
-            TypeExpression texpr = rtd.getFieldTypes().get(j);
-            switch (texpr.getTypeKind()) {
-                case TYPEREFERENCE: {
-                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-                    IAType tref = solveTypeReference(tre, typeMap);
-                    if (tref != null) {
-                        if (!rtd.getNullableFields().get(j)) { // not nullable
-                            fldTypes[j] = tref;
-                        } else { // nullable
-                            fldTypes[j] = makeUnionWithNull(null, tref);
-                        }
-                    } else {
-                        addIncompleteFieldTypeReference(recType, j, tre, incompleteFieldTypes);
-                        if (rtd.getNullableFields().get(j)) {
-                            fldTypes[j] = makeUnionWithNull(null, null);
-                        }
-                    }
-                    break;
-                }
-                case RECORD: {
-                    RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
-                    IAType t2 = computeRecordType(null, recTypeDef2, typeMap, incompleteFieldTypes, incompleteItemTypes);
-                    if (!rtd.getNullableFields().get(j)) { // not nullable
-                        fldTypes[j] = t2;
-                    } else { // nullable
-                        fldTypes[j] = makeUnionWithNull(null, t2);
-                    }
-                    break;
-                }
-                case ORDEREDLIST: {
-                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-                    IAType t2 = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                case UNORDEREDLIST: {
-                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-                    IAType t2 = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
-                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
-                    break;
-                }
-                default: {
-                    throw new IllegalStateException();
-                }
-            }
-
-        }
-
-        return recType;
-    }
-
-    private AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
-        ArrayList<IAType> unionList = new ArrayList<IAType>(2);
-        unionList.add(BuiltinType.ANULL);
-        unionList.add(type);
-        return new AUnionType(unionList, unionTypeName);
-    }
-
-    private void addIncompleteCollectionTypeReference(AbstractCollectionType collType, TypeReferenceExpression tre,
-            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-        String typeName = tre.getIdent().getValue();
-        List<AbstractCollectionType> typeList = incompleteItemTypes.get(typeName);
-        if (typeList == null) {
-            typeList = new LinkedList<AbstractCollectionType>();
-            incompleteItemTypes.put(typeName, typeList);
-        }
-        typeList.add(collType);
-    }
-
-    private void addIncompleteFieldTypeReference(ARecordType recType, int fldPosition, TypeReferenceExpression tre,
-            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-        String typeName = tre.getIdent().getValue();
-        Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes.get(typeName);
-        if (refMap == null) {
-            refMap = new HashMap<ARecordType, List<Integer>>();
-            incompleteFieldTypes.put(typeName, refMap);
-        }
-        List<Integer> typeList = refMap.get(recType);
-        if (typeList == null) {
-            typeList = new ArrayList<Integer>();
-            refMap.put(recType, typeList);
-        }
-        typeList.add(fldPosition);
-    }
-
-    private void addIncompleteTopLevelTypeReference(String tdeclName, TypeReferenceExpression tre,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) {
-        String name = tre.getIdent().getValue();
-        List<String> refList = incompleteTopLevelTypeReferences.get(name);
-        if (refList == null) {
-            refList = new LinkedList<String>();
-            incompleteTopLevelTypeReferences.put(name, refList);
-        }
-        refList.add(tdeclName);
-    }
-
-    private IAType solveTypeReference(TypeReferenceExpression tre, Map<String, IAType> typeMap) {
-        String name = tre.getIdent().getValue();
-        IAType builtin = builtinTypeMap.get(name);
-        if (builtin != null) {
-            return builtin;
-        } else {
-            return typeMap.get(name);
-        }
-    }
-
-    public static interface ICompiledStatement {
-
-        public abstract Kind getKind();
-    }
-
-    public static class CompiledLoadFromFileStatement implements ICompiledStatement, IParseFileSplitsDecl {
-        private String datasetName;
-        private FileSplit[] splits;
-        private boolean alreadySorted;
-        private Character delimChar;
-
-        public CompiledLoadFromFileStatement(String datasetName, FileSplit[] splits, Character delimChar,
-                boolean alreadySorted) {
-            this.datasetName = datasetName;
-            this.splits = splits;
-            this.delimChar = delimChar;
-            this.alreadySorted = alreadySorted;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        @Override
-        public FileSplit[] getSplits() {
-            return splits;
-        }
-
-        @Override
-        public Character getDelimChar() {
-            return delimChar;
-        }
-
-        public boolean alreadySorted() {
-            return alreadySorted;
-        }
-
-        @Override
-        public boolean isDelimitedFileFormat() {
-            return delimChar != null;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.LOAD_FROM_FILE;
-        }
-    }
-
-    public static class CompiledWriteFromQueryResultStatement implements ICompiledStatement {
-
-        private String datasetName;
-        private Query query;
-        private int varCounter;
-
-        public CompiledWriteFromQueryResultStatement(String datasetName, Query query, int varCounter) {
-            this.datasetName = datasetName;
-            this.query = query;
-            this.varCounter = varCounter;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public int getVarCounter() {
-            return varCounter;
-        }
-
-        public Query getQuery() {
-            return query;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.WRITE_FROM_QUERY_RESULT;
-        }
-
-    }
-
-    public static class CompiledDatasetDropStatement implements ICompiledStatement {
-        private String datasetName;
-
-        public CompiledDatasetDropStatement(String datasetName) {
-            this.datasetName = datasetName;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.DATASET_DROP;
-        }
-    }
-
-    // added by yasser
-    public static class CompiledCreateDataverseStatement implements ICompiledStatement {
-        private String dataverseName;
-        private String format;
-
-        public CompiledCreateDataverseStatement(String dataverseName, String format) {
-            this.dataverseName = dataverseName;
-            this.format = format;
-        }
-
-        public String getDataverseName() {
-            return dataverseName;
-        }
-
-        public String getFormat() {
-            return format;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.CREATE_DATAVERSE;
-        }
-    }
-
-    public static class CompiledNodeGroupDropStatement implements ICompiledStatement {
-        private String nodeGroupName;
-
-        public CompiledNodeGroupDropStatement(String nodeGroupName) {
-            this.nodeGroupName = nodeGroupName;
-        }
-
-        public String getNodeGroupName() {
-            return nodeGroupName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.NODEGROUP_DROP;
-        }
-    }
-
-    public static class CompiledIndexDropStatement implements ICompiledStatement {
-        private String datasetName;
-        private String indexName;
-
-        public CompiledIndexDropStatement(String datasetName, String indexName) {
-            this.datasetName = datasetName;
-            this.indexName = indexName;
-        }
-
-        public String getDatasetName() {
-            return datasetName;
-        }
-
-        public String getIndexName() {
-            return indexName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.INDEX_DROP;
-        }
-    }
-
-    public static class CompiledDataverseDropStatement implements ICompiledStatement {
-        private String dataverseName;
-        private boolean ifExists;
-
-        public CompiledDataverseDropStatement(String dataverseName, boolean ifExists) {
-            this.dataverseName = dataverseName;
-            this.ifExists = ifExists;
-        }
-
-        public String getDataverseName() {
-            return dataverseName;
-        }
-
-        public boolean getIfExists() {
-            return ifExists;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.DATAVERSE_DROP;
-        }
-    }
-
-    public static class CompiledTypeDropStatement implements ICompiledStatement {
-        private String typeName;
-
-        public CompiledTypeDropStatement(String nodeGroupName) {
-            this.typeName = nodeGroupName;
-        }
-
-        public String getTypeName() {
-            return typeName;
-        }
-
-        @Override
-        public Kind getKind() {
-            return Kind.TYPE_DROP;
-        }
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java
new file mode 100644
index 0000000..8d6b35e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/QueryResult.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.aql.translator;
+
+import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.job.JobId;
+
+public class QueryResult {
+
+    private final Query query;
+
+    private final ResultSetId resultSetId;
+
+    private JobId jobId;
+
+    public QueryResult(Query statement, ResultSetId resultSetId) {
+        this.query = statement;
+        this.resultSetId = resultSetId;
+    }
+
+    public void setJobId(JobId jobId) {
+        this.jobId = jobId;
+    }
+
+    public JobId getJobId() {
+        return jobId;
+    }
+
+    public Statement getStatement() {
+        return query;
+    }
+
+    public ResultSetId getResultSetId() {
+        return resultSetId;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java
deleted file mode 100644
index 6320737..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixAppRuntimeContext.java
+++ /dev/null
@@ -1,122 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.exceptions.AsterixRuntimeException;
-import edu.uci.ics.hyracks.api.application.INCApplicationContext;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexRegistry;
-import edu.uci.ics.hyracks.storage.common.buffercache.BufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ClockPageReplacementStrategy;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-
-public class AsterixAppRuntimeContext {
-    private static AsterixAppRuntimeContext INSTANCE;
-
-    private IndexRegistry<IIndex> treeRegistry;
-    private IBufferCache bufferCache;
-    private IFileMapManager fileMapManager;
-    private INCApplicationContext ncAppContext;
-
-    private static Logger LOGGER = Logger.getLogger(AsterixAppRuntimeContext.class.getName());
-
-    private AsterixAppRuntimeContext() {
-    }
-
-    public static void initialize(INCApplicationContext ncAppContext) throws IOException {
-        if (INSTANCE != null) {
-            LOGGER.info("Asterix instance already initialized");
-            return;
-        }
-
-        INSTANCE = new AsterixAppRuntimeContext();
-        INSTANCE.ncAppContext = ncAppContext;
-        INSTANCE.start();
-    }
-
-    public static void deinitialize() {
-        if (INSTANCE != null) {
-            INSTANCE.stop();
-            INSTANCE = null;
-        }
-    }
-
-    private void stop() {
-        bufferCache.close();
-    }
-
-    private void start() throws IOException {
-        fileMapManager = new AsterixFileMapManager();
-        ICacheMemoryAllocator allocator = new HeapBufferAllocator();
-        IPageReplacementStrategy prs = new ClockPageReplacementStrategy();
-        if (ncAppContext == null) {
-            throw new AsterixRuntimeException("NC Application Context has not been set.");
-        }
-        IIOManager ioMgr = ncAppContext.getRootContext().getIOManager();
-        String pgsizeStr = System.getProperty(GlobalConfig.BUFFER_CACHE_PAGE_SIZE_PROPERTY);
-        int pgSize = -1;
-        if (pgsizeStr != null) {
-            try {
-                pgSize = Integer.parseInt(pgsizeStr);
-            } catch (NumberFormatException nfe) {
-                StringWriter sw = new StringWriter();
-                nfe.printStackTrace(new PrintWriter(sw, true));
-                sw.close();
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache page size argument. Picking frame size ("
-                        + ncAppContext.getRootContext().getFrameSize() + ") instead. \n" + sw.toString() + "\n");
-            }
-        }
-        if (pgSize < 0) {
-            // by default, pick the frame size
-            pgSize = ncAppContext.getRootContext().getFrameSize();
-        }
-
-        int cacheSize = GlobalConfig.DEFAULT_BUFFER_CACHE_SIZE;
-        String cacheSizeStr = System.getProperty(GlobalConfig.BUFFER_CACHE_SIZE_PROPERTY);
-        if (cacheSizeStr != null) {
-            int cs = -1;
-            try {
-                cs = Integer.parseInt(cacheSizeStr);
-            } catch (NumberFormatException nfe) {
-                StringWriter sw = new StringWriter();
-                nfe.printStackTrace(new PrintWriter(sw, true));
-                sw.close();
-                GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache size argument. Picking default value ("
-                        + GlobalConfig.DEFAULT_BUFFER_CACHE_SIZE + ") instead.\n");
-            }
-            if (cs >= 0) {
-                cacheSize = cs;
-            }
-        }
-        System.out.println("BC :" + pgSize + " cache " + cacheSize);
-        bufferCache = new BufferCache(ioMgr, allocator, prs, fileMapManager, pgSize, cacheSize, Integer.MAX_VALUE);
-        treeRegistry = new IndexRegistry<IIndex>();
-    }
-
-    public static AsterixAppRuntimeContext getInstance() {
-        return INSTANCE;
-    }
-
-    public IBufferCache getBufferCache() {
-        return bufferCache;
-    }
-
-    public IFileMapProvider getFileMapManager() {
-        return fileMapManager;
-    }
-
-    public IndexRegistry<IIndex> getTreeRegistry() {
-        return treeRegistry;
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java
deleted file mode 100644
index 0aacc3d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixFileMapManager.java
+++ /dev/null
@@ -1,61 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import java.io.File;
-import java.util.HashMap;
-import java.util.Map;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
-
-public class AsterixFileMapManager implements IFileMapManager {
-
-    private static final long serialVersionUID = 1L;
-    private Map<Integer, String> id2nameMap = new HashMap<Integer, String>();
-    private Map<String, Integer> name2IdMap = new HashMap<String, Integer>();
-    private int idCounter = 0;
-
-    @Override
-    public FileReference lookupFileName(int fileId) throws HyracksDataException {
-        String fName = id2nameMap.get(fileId);
-        if (fName == null) {
-            throw new HyracksDataException("No mapping found for id: " + fileId);
-        }
-        return new FileReference(new File(fName));
-    }
-
-    @Override
-    public int lookupFileId(FileReference fileRef) throws HyracksDataException {
-        String fileName = fileRef.getFile().getAbsolutePath();
-        Integer fileId = name2IdMap.get(fileName);
-        if (fileId == null) {
-            throw new HyracksDataException("No mapping found for name: " + fileName);
-        }
-        return fileId;
-    }
-
-    @Override
-    public boolean isMapped(FileReference fileRef) {
-        String fileName = fileRef.getFile().getAbsolutePath();
-        return name2IdMap.containsKey(fileName);
-    }
-
-    @Override
-    public boolean isMapped(int fileId) {
-        return id2nameMap.containsKey(fileId);
-    }
-
-    @Override
-    public void unregisterFile(int fileId) throws HyracksDataException {
-        String fileName = id2nameMap.remove(fileId);
-        name2IdMap.remove(fileName);
-    }
-
-    @Override
-    public void registerFile(FileReference fileRef) throws HyracksDataException {
-        Integer fileId = idCounter++;
-        String fileName = fileRef.getFile().getAbsolutePath();
-        id2nameMap.put(fileId, fileName);
-        name2IdMap.put(fileName, fileId);
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java
deleted file mode 100644
index 12d715d..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixStorageManagerInterface.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-
-public class AsterixStorageManagerInterface implements IStorageManagerInterface {
-    private static final long serialVersionUID = 1L;
-
-    public static AsterixStorageManagerInterface INSTANCE = new AsterixStorageManagerInterface();
-
-    @Override
-    public IBufferCache getBufferCache(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getBufferCache();
-    }
-
-    @Override
-    public IFileMapProvider getFileMapProvider(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getFileMapManager();
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java b/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java
deleted file mode 100644
index 80fd64a..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/context/AsterixTreeRegistryProvider.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package edu.uci.ics.asterix.context;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexRegistry;
-
-public class AsterixTreeRegistryProvider implements IIndexRegistryProvider<IIndex> {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AsterixTreeRegistryProvider INSTANCE = new AsterixTreeRegistryProvider();
-
-    private AsterixTreeRegistryProvider() {
-    }
-
-    @Override
-    public IndexRegistry<IIndex> getRegistry(IHyracksTaskContext ctx) {
-        return AsterixAppRuntimeContext.getInstance().getTreeRegistry();
-    }
-
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
index d179eb6..d4c8c34 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,46 +12,52 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package edu.uci.ics.asterix.file;
 
+import java.io.File;
+import java.io.IOException;
 import java.rmi.RemoteException;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.api.common.Job;
-import edu.uci.ics.asterix.aql.translator.DdlTranslator.CompiledDatasetDropStatement;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledExternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetCardinalityHint;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.operators.std.NoTupleSourceRuntimeFactory;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledLoadFromFileStatement;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDatasetDropStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.AssignRuntimeFactory;
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
@@ -68,13 +74,13 @@
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDropOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
 
 public class DatasetOperations {
 
@@ -83,243 +89,170 @@
 
     private static Logger LOGGER = Logger.getLogger(DatasetOperations.class.getName());
 
-    public static JobSpecification[] createDropDatasetJobSpec(CompiledDatasetDropStatement deleteStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AlgebricksException, HyracksDataException,
-            RemoteException, ACIDException, AsterixException {
+    public static JobSpecification createDropDatasetJobSpec(CompiledDatasetDropStatement datasetDropStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, HyracksDataException, RemoteException,
+            ACIDException, AsterixException {
 
-        String datasetName = deleteStmt.getDatasetName();
-        String datasetPath = metadata.getRelativePath(datasetName);
+        String dataverseName = null;
+        if (datasetDropStmt.getDataverseName() != null) {
+            dataverseName = datasetDropStmt.getDataverseName();
+        } else if (metadataProvider.getDefaultDataverse() != null) {
+            dataverseName = metadataProvider.getDefaultDataverse().getDataverseName();
+        }
+
+        String datasetName = datasetDropStmt.getDatasetName();
+        String datasetPath = dataverseName + File.separator + datasetName;
 
         LOGGER.info("DROP DATASETPATH: " + datasetPath);
 
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
+        Dataset dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
             throw new AlgebricksException("DROP DATASET: No metadata for dataset " + datasetName);
         }
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
-            return new JobSpecification[0];
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            return new JobSpecification();
         }
 
-        List<AqlCompiledIndexDecl> secondaryIndexes = DatasetUtils.getSecondaryIndexes(adecl);
-
-        JobSpecification[] specs;
-
-        if (secondaryIndexes != null && !secondaryIndexes.isEmpty()) {
-            int n = secondaryIndexes.size();
-            specs = new JobSpecification[n + 1];
-            int i = 0;
-            // first, drop indexes
-            for (AqlCompiledIndexDecl acid : secondaryIndexes) {
-                specs[i] = new JobSpecification();
-                Pair<IFileSplitProvider, AlgebricksPartitionConstraint> idxSplitsAndConstraint = metadata
-                        .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, acid.getIndexName());
-                TreeIndexDropOperatorDescriptor secondaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specs[i],
-                        storageManager, btreeRegistryProvider, idxSplitsAndConstraint.first);
-                AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specs[i], secondaryBtreeDrop,
-                        idxSplitsAndConstraint.second);
-                i++;
-            }
-        } else {
-            specs = new JobSpecification[1];
-        }
         JobSpecification specPrimary = new JobSpecification();
-        specs[specs.length - 1] = specPrimary;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-        TreeIndexDropOperatorDescriptor primaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specPrimary,
-                storageManager, btreeRegistryProvider, splitsAndConstraint.first);
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(), datasetName,
+                        datasetName);
+        IndexDropOperatorDescriptor primaryBtreeDrop = new IndexDropOperatorDescriptor(specPrimary,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES));
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specPrimary, primaryBtreeDrop,
                 splitsAndConstraint.second);
 
         specPrimary.addRoot(primaryBtreeDrop);
 
-        return specs;
+        return specPrimary;
     }
 
-    public static JobSpecification[] createInitializeDatasetJobSpec(long txnId, String datasetName,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
-        }
-        if (compiledDatasetDecl.getDatasetType() != DatasetType.INTERNAL
-                && compiledDatasetDecl.getDatasetType() != DatasetType.FEED) {
-            throw new AsterixException("Cannot initialize  dataset  (" + datasetName + ")" + "of type "
-                    + compiledDatasetDecl.getDatasetType());
-        }
-
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
+    public static JobSpecification createDatasetJobSpec(Dataverse dataverse, String datasetName,
+            AqlMetadataProvider metadata) throws AsterixException, AlgebricksException {
+        String dataverseName = dataverse.getDataverseName();
         IDataFormat format;
-        ISerializerDeserializer payloadSerde;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-
         try {
-            format = metadata.getFormat();
-            payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
-            comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(compiledDatasetDecl, metadata
-                    .getFormat().getBinaryComparatorFactoryProvider());
-            typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    datasetName);
-
-        } catch (AlgebricksException e1) {
-            throw new AsterixException(e1);
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
         }
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider.createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(typeTraits);
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        JobSpecification spec = new JobSpecification();
-        RecordDescriptor recDesc;
-        try {
-            recDesc = computePayloadKeyRecordDescriptor(compiledDatasetDecl, payloadSerde, metadata.getFormat());
-            NoTupleSourceRuntimeFactory factory = new NoTupleSourceRuntimeFactory();
-            AlgebricksMetaOperatorDescriptor asterixOp = new AlgebricksMetaOperatorDescriptor(spec, 0, 1,
-                    new IPushRuntimeFactory[] { factory }, new RecordDescriptor[] { recDesc });
-
-            // move key fieldsx to front
-            List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                    .getPartitioningFunctions(compiledDatasetDecl);
-            int numKeys = partitioningFunctions.size();
-            int[] keys = new int[numKeys];
-            for (int i = 0; i < numKeys; i++) {
-                keys[i] = i + 1;
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Could not find dataset " + datasetName + " in datavetse " + dataverseName);
+        }
+        ARecordType itemType = (ARecordType) metadata.findType(dataverseName, dataset.getItemTypeName());
+        for (String keyField : DatasetUtils.getPartitioningKeys(dataset)) {
+            try {
+                if (!itemType.isClosedField(keyField)) {
+                    throw new AsterixException("Cannot partition dataset \"" + dataset.getDatasetName()
+                            + "\" by key \"" + keyField + "\" since it is not a valid field of \""
+                            + itemType.getTypeName() + "\"");
+                }
+            } catch (IOException e) {
+                throw new AsterixException(e);
             }
-
-            int[] fieldPermutation = new int[numKeys + 1];
-            System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
-            fieldPermutation[numKeys] = 0;
-
-            TreeIndexBulkLoadOperatorDescriptor bulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                    storageManager, btreeRegistryProvider, splitsAndConstraint.first, interiorFrameFactory,
-                    leafFrameFactory, typeTraits, comparatorFactories, fieldPermutation,
-                    GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
-
-            AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixOp,
-                    splitsAndConstraint.second);
-            AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, bulkLoad,
-                    splitsAndConstraint.second);
-
-            spec.connect(new OneToOneConnectorDescriptor(spec), asterixOp, 0, bulkLoad, 0);
-
-            spec.addRoot(bulkLoad);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
         }
+        JobSpecification spec = new JobSpecification();
+        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                itemType, format.getBinaryComparatorFactoryProvider());
+        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+        int[] blooFilterKeyFields = DatasetUtils.createBloomFilterKeyFields(dataset);
 
-        return new JobSpecification[] { spec };
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
+        FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < fs.length; i++) {
+            sb.append(stringOf(fs[i]) + " ");
+        }
+        LOGGER.info("CREATING File Splits: " + sb.toString());
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
+                comparatorFactories, blooFilterKeyFields, true, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMBTreeResource);
+
+        TreeIndexCreateOperatorDescriptor indexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, typeTraits, comparatorFactories, blooFilterKeyFields,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), localResourceFactoryProvider,
+                NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, indexCreateOp,
+                splitsAndConstraint.second);
+        spec.addRoot(indexCreateOp);
+        return spec;
     }
 
-    @SuppressWarnings("unchecked")
-    public static List<Job> createLoadDatasetJobSpec(CompiledLoadFromFileStatement loadStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-
+    @SuppressWarnings("rawtypes")
+    public static Job createLoadDatasetJobSpec(AqlMetadataProvider metadataProvider,
+            CompiledLoadFromFileStatement loadStmt, IDataFormat format) throws AsterixException, AlgebricksException {
+        MetadataTransactionContext mdTxnCtx = metadataProvider.getMetadataTxnContext();
+        String dataverseName = loadStmt.getDataverseName();
         String datasetName = loadStmt.getDatasetName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
+        Dataset dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Could not find dataset " + datasetName + " in dataverse " + dataverseName);
         }
-        if (compiledDatasetDecl.getDatasetType() != DatasetType.INTERNAL
-                && compiledDatasetDecl.getDatasetType() != DatasetType.FEED) {
+        if (dataset.getDatasetType() != DatasetType.INTERNAL && dataset.getDatasetType() != DatasetType.FEED) {
             throw new AsterixException("Cannot load data into dataset  (" + datasetName + ")" + "of type "
-                    + compiledDatasetDecl.getDatasetType());
+                    + dataset.getDatasetType());
         }
-
-        List<Job> jobSpecs = new ArrayList<Job>();
-        try {
-            jobSpecs.addAll(dropDatasetIndexes(datasetName, metadata));
-        } catch (AlgebricksException ae) {
-            throw new AsterixException(ae);
-        }
-
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        IDataFormat format;
-        try {
-            format = metadata.getFormat();
-        } catch (AlgebricksException e1) {
-            throw new AsterixException(e1);
-        }
-        ISerializerDeserializer payloadSerde;
-        try {
-            payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
-
-        IBinaryHashFunctionFactory[] hashFactories;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        try {
-            hashFactories = DatasetUtils.computeKeysBinaryHashFunFactories(compiledDatasetDecl, metadata.getFormat()
-                    .getBinaryHashFunctionFactoryProvider());
-            comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(compiledDatasetDecl, metadata
-                    .getFormat().getBinaryComparatorFactoryProvider());
-            typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
-
         JobSpecification spec = new JobSpecification();
-        IOperatorDescriptor scanner;
-        AlgebricksPartitionConstraint scannerPc;
-        RecordDescriptor recDesc;
-        try {
-            AqlCompiledExternalDatasetDetails add = new AqlCompiledExternalDatasetDetails(loadStmt.getAdapter(),
-                    loadStmt.getProperties());
-            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = AqlMetadataProvider
-                    .buildExternalDataScannerRuntime(spec, itemType, add, format);
-            scanner = p.first;
-            scannerPc = p.second;
-            recDesc = computePayloadKeyRecordDescriptor(compiledDatasetDecl, payloadSerde, metadata.getFormat());
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
+
+        ARecordType itemType = (ARecordType) MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName,
+                dataset.getItemTypeName()).getDatatype();
+        ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
+
+        IBinaryHashFunctionFactory[] hashFactories = DatasetUtils.computeKeysBinaryHashFunFactories(dataset, itemType,
+                format.getBinaryHashFunctionFactoryProvider());
+        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                itemType, format.getBinaryComparatorFactoryProvider());
+        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+        int[] blooFilterKeyFields = DatasetUtils.createBloomFilterKeyFields(dataset);
+
+        ExternalDatasetDetails externalDatasetDetails = new ExternalDatasetDetails(loadStmt.getAdapter(),
+                loadStmt.getProperties());
+
+        Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = metadataProvider.buildExternalDataScannerRuntime(
+                spec, itemType, externalDatasetDetails, format);
+        IOperatorDescriptor scanner = p.first;
+        AlgebricksPartitionConstraint scannerPc = p.second;
+        RecordDescriptor recDesc = computePayloadKeyRecordDescriptor(dataset, itemType, payloadSerde, format);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, scanner, scannerPc);
 
-        AssignRuntimeFactory assign = makeAssignRuntimeFactory(compiledDatasetDecl);
+        AssignRuntimeFactory assign = makeAssignRuntimeFactory(dataset, itemType, format);
         AlgebricksMetaOperatorDescriptor asterixOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
                 new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { recDesc });
 
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixOp, scannerPc);
 
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
+        int numKeys = DatasetUtils.getPartitioningKeys(dataset).size();
         int[] keys = new int[numKeys];
         for (int i = 0; i < numKeys; i++) {
             keys[i] = i + 1;
         }
-        int framesLimit = physicalOptimizationConfig.getMaxFramesExternalSort();
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider.createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(typeTraits);
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // move key fields to front
+        // Move key fields to front.
         int[] fieldPermutation = new int[numKeys + 1];
-        System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
+        for (int i = 0; i < numKeys; i++) {
+            fieldPermutation[i] = i + 1;
+        }
         fieldPermutation[numKeys] = 0;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-        try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    datasetName);
-        } catch (AlgebricksException e) {
-            throw new AsterixException(e);
-        }
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
 
         FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
         StringBuilder sb = new StringBuilder();
@@ -328,24 +261,36 @@
         }
         LOGGER.info("LOAD into File Splits: " + sb.toString());
 
+        String numElementsHintString = dataset.getHints().get("CARDINALITY");
+        long numElementsHint;
+        if (numElementsHintString == null) {
+            numElementsHint = DatasetCardinalityHint.DEFAULT;
+        } else {
+            numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
+        }
+
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, btreeRegistryProvider, splitsAndConstraint.first, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, fieldPermutation,
-                GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, typeTraits, comparatorFactories, blooFilterKeyFields, fieldPermutation,
+                GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, false, numElementsHint, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, btreeBulkLoad,
                 splitsAndConstraint.second);
 
         spec.connect(new OneToOneConnectorDescriptor(spec), scanner, 0, asterixOp, 0);
 
         if (!loadStmt.alreadySorted()) {
+            int framesLimit = physicalOptimizationConfig.getMaxFramesExternalSort();
             ExternalSortOperatorDescriptor sorter = new ExternalSortOperatorDescriptor(spec, framesLimit, keys,
                     comparatorFactories, recDesc);
             AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sorter,
                     splitsAndConstraint.second);
-
             IConnectorDescriptor hashConn = new MToNPartitioningConnectorDescriptor(spec,
                     new FieldHashPartitionComputerFactory(keys, hashFactories));
-
             spec.connect(hashConn, asterixOp, 0, sorter, 0);
             spec.connect(new OneToOneConnectorDescriptor(spec), sorter, 0, btreeBulkLoad, 0);
         } else {
@@ -353,56 +298,24 @@
                     new FieldHashPartitionComputerFactory(keys, hashFactories), keys, comparatorFactories);
             spec.connect(sortMergeConn, asterixOp, 0, btreeBulkLoad, 0);
         }
-
         spec.addRoot(btreeBulkLoad);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
 
-        jobSpecs.add(new Job(spec));
-        return jobSpecs;
-    }
-
-    private static List<Job> dropDatasetIndexes(String datasetName, AqlCompiledMetadataDeclarations metadata)
-            throws AlgebricksException, MetadataException {
-
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new AlgebricksException("DROP DATASET INDEXES: No metadata for dataset " + datasetName);
-        }
-
-        List<AqlCompiledIndexDecl> indexes = DatasetUtils.getSecondaryIndexes(adecl);
-        indexes.add(DatasetUtils.getPrimaryIndex(adecl));
-
-        List<Job> specs = new ArrayList<Job>();
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        if (indexes != null && !indexes.isEmpty()) {
-            // first, drop indexes
-            for (AqlCompiledIndexDecl acid : indexes) {
-                JobSpecification spec = new JobSpecification();
-                Pair<IFileSplitProvider, AlgebricksPartitionConstraint> idxSplitsAndConstraint = metadata
-                        .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, acid.getIndexName());
-                TreeIndexDropOperatorDescriptor secondaryBtreeDrop = new TreeIndexDropOperatorDescriptor(spec,
-                        storageManager, btreeRegistryProvider, idxSplitsAndConstraint.first);
-                AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBtreeDrop,
-                        idxSplitsAndConstraint.second);
-                specs.add(new Job(spec));
-            }
-        }
-        return specs;
+        return new Job(spec);
     }
 
     private static String stringOf(FileSplit fs) {
         return fs.getNodeName() + ":" + fs.getLocalFile().toString();
     }
 
-    private static AssignRuntimeFactory makeAssignRuntimeFactory(AqlCompiledDatasetDecl compiledDatasetDecl) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numKeys];
+    private static AssignRuntimeFactory makeAssignRuntimeFactory(Dataset dataset, ARecordType itemType,
+            IDataFormat format) throws AlgebricksException {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numKeys = partitioningKeys.size();
+        ICopyEvaluatorFactory[] evalFactories = new ICopyEvaluatorFactory[numKeys];
         for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
+            Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = format
+                    .partitioningEvaluatorFactory(itemType, partitioningKeys.get(i));
             evalFactories[i] = evalFactoryAndType.first;
         }
         int[] outColumns = new int[numKeys];
@@ -413,25 +326,31 @@
             outColumns[i] = i + 1;
             projectionList[i + 1] = i + 1;
         }
-        return new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
+        IScalarEvaluatorFactory[] sefs = new IScalarEvaluatorFactory[evalFactories.length];
+        for (int i = 0; i < evalFactories.length; ++i) {
+            sefs[i] = new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(
+                    evalFactories[i]);
+        }
+        return new AssignRuntimeFactory(outColumns, sefs, projectionList);
     }
 
-    @SuppressWarnings("unchecked")
-    private static RecordDescriptor computePayloadKeyRecordDescriptor(AqlCompiledDatasetDecl compiledDatasetDecl,
+    @SuppressWarnings("rawtypes")
+    private static RecordDescriptor computePayloadKeyRecordDescriptor(Dataset dataset, ARecordType itemType,
             ISerializerDeserializer payloadSerde, IDataFormat dataFormat) throws AlgebricksException {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numKeys = partitioningKeys.size();
         ISerializerDeserializer[] recordFields = new ISerializerDeserializer[1 + numKeys];
         recordFields[0] = payloadSerde;
         for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
-            IAType keyType = evalFactoryAndType.third;
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
             ISerializerDeserializer keySerde = dataFormat.getSerdeProvider().getSerializerDeserializer(keyType);
             recordFields[i + 1] = keySerde;
         }
         return new RecordDescriptor(recordFields);
     }
-
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
index ef2425d..f9bd2d5 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
@@ -14,52 +14,55 @@
  */
 package edu.uci.ics.asterix.file;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.feed.comm.AlterFeedMessage;
-import edu.uci.ics.asterix.feed.comm.FeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage.MessageType;
-import edu.uci.ics.asterix.formats.base.IDataFormat;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledFeedDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.external.feed.lifecycle.AlterFeedMessage;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedMessage;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage.MessageType;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledControlFeedStatement;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledControlFeedStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.dataflow.std.misc.NullSinkOperatorDescriptor;
 
+/**
+ * Provides helper method(s) for creating JobSpec for operations on a feed.
+ */
 public class FeedOperations {
 
     private static final Logger LOGGER = Logger.getLogger(IndexOperations.class.getName());
 
+    /**
+     * @param controlFeedStatement
+     *            The statement representing the action that describes the
+     *            action that needs to be taken on the feed. E.g. of actions are
+     *            stop feed or alter feed.
+     * @param metadataProvider
+     *            An instance of the MetadataProvider
+     * @return An instance of JobSpec for the job that would send an appropriate
+     *         control message to the running feed.
+     * @throws AsterixException
+     * @throws AlgebricksException
+     */
     public static JobSpecification buildControlFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
         switch (controlFeedStatement.getOperationType()) {
             case ALTER:
-            case SUSPEND:
-            case RESUME:
             case END: {
-                return createSendMessageToFeedJobSpec(controlFeedStatement, datasetDecls);
+                return createSendMessageToFeedJobSpec(controlFeedStatement, metadataProvider);
             }
             default: {
                 throw new AsterixException("Unknown Operation Type: " + controlFeedStatement.getOperationType());
@@ -69,18 +72,25 @@
     }
 
     private static JobSpecification createSendMessageToFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-        String datasetName = controlFeedStatement.getDatasetName().getValue();
-        String datasetPath = metadata.getRelativePath(datasetName);
+            AqlMetadataProvider metadataProvider) throws AsterixException {
+        String dataverseName = controlFeedStatement.getDataverseName() == null ? metadataProvider
+                .getDefaultDataverseName() : controlFeedStatement.getDataverseName();
+        String datasetName = controlFeedStatement.getDatasetName();
+        String datasetPath = dataverseName + File.separator + datasetName;
 
         LOGGER.info(" DATASETPATH: " + datasetPath);
 
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
+        Dataset dataset;
+        try {
+            dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        } catch (AlgebricksException e) {
+            throw new AsterixException(e);
+        }
+        if (dataset == null) {
             throw new AsterixException("FEED DATASET: No metadata for dataset " + datasetName);
         }
-        if (adecl.getDatasetType() != DatasetType.FEED) {
-            throw new AsterixException("Operation not support for dataset type  " + adecl.getDatasetType());
+        if (dataset.getDatasetType() != DatasetType.FEED) {
+            throw new AsterixException("Operation not support for dataset type  " + dataset.getDatasetType());
         }
 
         JobSpecification spec = new JobSpecification();
@@ -89,24 +99,18 @@
 
         List<IFeedMessage> feedMessages = new ArrayList<IFeedMessage>();
         switch (controlFeedStatement.getOperationType()) {
-            case SUSPEND:
-                feedMessages.add(new FeedMessage(MessageType.SUSPEND));
-                break;
             case END:
                 feedMessages.add(new FeedMessage(MessageType.STOP));
                 break;
-            case RESUME:
-                feedMessages.add(new FeedMessage(MessageType.RESUME));
-                break;
             case ALTER:
                 feedMessages.add(new AlterFeedMessage(controlFeedStatement.getProperties()));
                 break;
         }
 
         try {
-            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = AqlMetadataProvider.buildFeedMessengerRuntime(
-                    spec, metadata, (AqlCompiledFeedDatasetDetails) adecl.getAqlCompiledDatasetDetails(),
-                    metadata.getDataverseName(), datasetName, feedMessages);
+            Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = metadataProvider.buildFeedMessengerRuntime(
+                    metadataProvider, spec, (FeedDatasetDetails) dataset.getDatasetDetails(), dataverseName,
+                    datasetName, feedMessages);
             feedMessenger = p.first;
             messengerPc = p.second;
         } catch (AlgebricksException e) {
@@ -124,49 +128,4 @@
         return spec;
 
     }
-
-    private static AssignRuntimeFactory makeAssignRuntimeFactory(AqlCompiledDatasetDecl compiledDatasetDecl) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numKeys];
-
-        int index = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            evalFactories[index++] = evalFactoryAndType.first;
-        }
-
-        int[] outColumns = new int[numKeys];
-        int[] projectionList = new int[numKeys + 1];
-        projectionList[0] = 0;
-
-        for (int i = 0; i < numKeys; i++) {
-            outColumns[i] = i + 1;
-            projectionList[i + 1] = i + 1;
-        }
-        return new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-    }
-
-    @SuppressWarnings("unchecked")
-    private static RecordDescriptor computePayloadKeyRecordDescriptor(AqlCompiledDatasetDecl compiledDatasetDecl,
-            ISerializerDeserializer payloadSerde, IDataFormat dataFormat) throws AlgebricksException {
-
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        ISerializerDeserializer[] recordFields = new ISerializerDeserializer[1 + numKeys];
-        recordFields[0] = payloadSerde;
-        int index = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = dataFormat.getSerdeProvider().getSerializerDeserializer(keyType);
-            recordFields[index + 1] = keySerde;
-            index++;
-        }
-        return new RecordDescriptor(recordFields);
-    }
-
-    private static String stringOf(FileSplit fs) {
-        return fs.getNodeName() + ":" + fs.getLocalFile().toString();
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
index f9ac244..dbbbe44 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
@@ -1,860 +1,65 @@
 package edu.uci.ics.asterix.file;
 
-import java.io.DataOutput;
-import java.util.List;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.aql.translator.DdlTranslator.CompiledIndexDropStatement;
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryTokenizerFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
 import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.asterix.translator.DmlTranslator.CompiledCreateIndexStatement;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ISerializerDeserializerProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.AssignRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraintHelper;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledIndexDropStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDropOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.invertedindex.dataflow.BinaryTokenizerOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.IBinaryTokenizerFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.dataflow.RTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.tuples.RTreeTypeAwareTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
 
 public class IndexOperations {
 
     private static final PhysicalOptimizationConfig physicalOptimizationConfig = OptimizationConfUtil
             .getPhysicalOptimizationConfig();
 
-    private static final Logger LOGGER = Logger.getLogger(IndexOperations.class.getName());
-
-    public static JobSpecification buildCreateIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
-
-        switch (createIndexStmt.getIndexType()) {
-            case BTREE: {
-                return createBtreeIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case RTREE: {
-                return createRtreeIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case KEYWORD: {
-                return createKeywordIndexJobSpec(createIndexStmt, datasetDecls);
-            }
-
-            case QGRAM: {
-                // return createQgramIndexJobSpec(createIndexStmt,
-                // datasetDecls);
-            }
-
-            default: {
-                throw new AsterixException("Unknown Index Type: " + createIndexStmt.getIndexType());
-            }
-
-        }
+    public static JobSpecification buildSecondaryIndexCreationJobSpec(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
+        SecondaryIndexCreator secondaryIndexCreator = SecondaryIndexCreator.createIndexCreator(createIndexStmt,
+                metadataProvider, physicalOptimizationConfig);
+        return secondaryIndexCreator.buildCreationJobSpec();
     }
 
-    public static JobSpecification createSecondaryIndexDropJobSpec(CompiledIndexDropStatement deleteStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AlgebricksException, MetadataException {
-        String datasetName = deleteStmt.getDatasetName();
-        String indexName = deleteStmt.getIndexName();
+    public static JobSpecification buildSecondaryIndexLoadingJobSpec(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AsterixException, AlgebricksException {
+        SecondaryIndexCreator secondaryIndexCreator = SecondaryIndexCreator.createIndexCreator(createIndexStmt,
+                metadataProvider, physicalOptimizationConfig);
+        return secondaryIndexCreator.buildLoadingJobSpec();
+    }
+
+    public static JobSpecification buildDropSecondaryIndexJobSpec(CompiledIndexDropStatement indexDropStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, MetadataException {
+        String dataverseName = indexDropStmt.getDataverseName() == null ? metadataProvider.getDefaultDataverseName()
+                : indexDropStmt.getDataverseName();
+        String datasetName = indexDropStmt.getDatasetName();
+        String indexName = indexDropStmt.getIndexName();
 
         JobSpecification spec = new JobSpecification();
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
 
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
-        TreeIndexDropOperatorDescriptor btreeDrop = new TreeIndexDropOperatorDescriptor(spec, storageManager,
-                btreeRegistryProvider, splitsAndConstraint.first);
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, indexName);
+        IndexDropOperatorDescriptor btreeDrop = new IndexDropOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                splitsAndConstraint.first, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES));
         AlgebricksPartitionConstraintHelper
                 .setPartitionConstraintInJobSpec(spec, btreeDrop, splitsAndConstraint.second);
         spec.addRoot(btreeDrop);
 
         return spec;
     }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createBtreeIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String datasetName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
-        }
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializer payloadSerde = AqlSerializerDeserializerProvider.INSTANCE
-                .getSerializerDeserializer(itemType);
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + datasetName + ").");
-        }
-
-        AqlCompiledDatasetDecl srcCompiledDatasetDecl = compiledDatasetDecl;
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // ---------- START GENERAL BTREE STUFF
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        try {
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        } // dummy field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        ISerializerDeserializerProvider serdeProvider = metadata.getFormat().getSerdeProvider();
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(srcCompiledDatasetDecl);
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : partitioningFunctions) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numSecondaryKeys];
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[numSecondaryKeys
-                + numPrimaryKeys];
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            evalFactories[i] = metadata.getFormat().getFieldAccessEvaluatorFactory(itemType, secondaryKeyFields.get(i),
-                    numPrimaryKeys);
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(i), itemType);
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            secondaryRecFields[i] = keySerde;
-            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-        }
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numSecondaryKeys + i] = primaryRecFields[i];
-            secondaryComparatorFactories[numSecondaryKeys + i] = primaryComparatorFactories[i];
-            secondaryTypeTraits[numSecondaryKeys + i] = primaryTypeTraits[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numSecondaryKeys];
-        int[] projectionList = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numSecondaryKeys; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START EXTERNAL SORT OP
-
-        int[] sortFields = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys + numPrimaryKeys; i++)
-            sortFields[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> sorterSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
-
-        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
-                physicalOptimizationConfig.getMaxFramesExternalSort(), sortFields, secondaryComparatorFactories,
-                secondaryRecDesc);
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp,
-                sorterSplitsAndConstraint.second);
-
-        // ---------- END EXTERNAL SORT OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        int[] fieldPermutation = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys + numPrimaryKeys; i++)
-            fieldPermutation[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, secondaryIndexName);
-
-        // GlobalConfig.DEFAULT_BTREE_FILL_FACTOR
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                secondaryComparatorFactories, fieldPermutation, 0.7f, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, sortOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-
-    }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createRtreeIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String primaryIndexName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(primaryIndexName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + primaryIndexName);
-        }
-        ARecordType itemType = (ARecordType) metadata.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializerProvider serdeProvider = metadata.getFormat().getSerdeProvider();
-        ISerializerDeserializer payloadSerde = serdeProvider.getSerializerDeserializer(itemType);
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + primaryIndexName + ").");
-        }
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        try {
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        } // dummy field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        serdeProvider = metadata.getFormat().getSerdeProvider();
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-
-        if (numSecondaryKeys != 1) {
-            throw new AsterixException(
-                    "Cannot use "
-                            + numSecondaryKeys
-                            + " fields as a key for the R-tree index. There can be only one field as a key for the R-tree index.");
-        }
-
-        IAType spatialType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(0), itemType);
-        if (spatialType == null) {
-            throw new AsterixException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
-        }
-
-        int dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
-        int numNestedSecondaryKeyFields = dimension * 2;
-
-        IEvaluatorFactory[] evalFactories = metadata.getFormat().createMBRFactory(itemType, secondaryKeyFields.get(0),
-                numPrimaryKeys, dimension);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys
-                + numNestedSecondaryKeyFields];
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[numNestedSecondaryKeyFields];
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numNestedSecondaryKeyFields + numPrimaryKeys];
-        IPrimitiveValueProviderFactory[] valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
-
-        IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(0), itemType);
-        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(nestedKeyType);
-            secondaryRecFields[i] = keySerde;
-            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    nestedKeyType, OrderKind.ASC);
-            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
-            valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
-        }
-
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numNestedSecondaryKeyFields + i] = primaryRecFields[i];
-            secondaryTypeTraits[numNestedSecondaryKeyFields + i] = primaryTypeTraits[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numNestedSecondaryKeyFields];
-        int[] projectionList = new int[numNestedSecondaryKeyFields + numPrimaryKeys];
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        /*
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = JobGenHelper.createRTreeNSMInteriorFrameFactory(
-                secondaryTypeTraits, numNestedSecondaryKeyFields);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = JobGenHelper.createRTreeNSMLeafFrameFactory(
-                secondaryTypeTraits, numNestedSecondaryKeyFields);
-        */
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = new RTreeNSMInteriorFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(secondaryTypeTraits), valueProviderFactories);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = new RTreeNSMLeafFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(secondaryTypeTraits), valueProviderFactories);
-
-        int[] fieldPermutation = new int[numNestedSecondaryKeyFields + numPrimaryKeys];
-        for (i = 0; i < numNestedSecondaryKeyFields + numPrimaryKeys; i++)
-            fieldPermutation[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, secondaryIndexName);
-
-        // GlobalConfig.DEFAULT_BTREE_FILL_FACTOR
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                secondaryComparatorFactories, fieldPermutation, 0.7f, new RTreeDataflowHelperFactory());
-
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-
-    }
-
-    @SuppressWarnings("unchecked")
-    public static JobSpecification createKeywordIndexJobSpec(CompiledCreateIndexStatement createIndexStmt,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AsterixException, AlgebricksException {
-
-        JobSpecification spec = new JobSpecification();
-
-        String primaryIndexName = createIndexStmt.getDatasetName();
-        String secondaryIndexName = createIndexStmt.getIndexName();
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = datasetDecls.findDataset(primaryIndexName);
-        if (compiledDatasetDecl == null) {
-            throw new AsterixException("Could not find dataset " + primaryIndexName);
-        }
-
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL) {
-            throw new AsterixException("Cannot index an external dataset (" + primaryIndexName + ").");
-        }
-        ARecordType itemType = (ARecordType) datasetDecls.findType(compiledDatasetDecl.getItemTypeName());
-        ISerializerDeserializerProvider serdeProvider = datasetDecls.getFormat().getSerdeProvider();
-        ISerializerDeserializer payloadSerde = serdeProvider.getSerializerDeserializer(itemType);
-
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(compiledDatasetDecl).size();
-
-        // sanity
-        if (numPrimaryKeys > 1)
-            throw new AsterixException("Cannot create inverted keyword index on dataset with composite primary key.");
-
-        // sanity
-        IAType fieldsToTokenizeType = AqlCompiledIndexDecl
-                .keyFieldType(createIndexStmt.getKeyFields().get(0), itemType);
-        for (String fieldName : createIndexStmt.getKeyFields()) {
-            IAType nextFieldToTokenizeType = AqlCompiledIndexDecl.keyFieldType(fieldName, itemType);
-            if (nextFieldToTokenizeType.getTypeTag() != fieldsToTokenizeType.getTypeTag()) {
-                throw new AsterixException(
-                        "Cannot create inverted keyword index. Fields to tokenize must be of the same type.");
-            }
-        }
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> treeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        try {
-            tb.reset();
-            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos); // dummy
-            // field
-            tb.addFieldEndOffset();
-        } catch (HyracksDataException e) {
-            throw new AsterixException(e);
-        }
-
-        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> keyProviderSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
-                keyProviderSplitsAndConstraint.second);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START PRIMARY INDEX SCAN
-
-        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-        IBinaryComparatorFactory[] primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
-        int i = 0;
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            primaryRecFields[i] = keySerde;
-            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    keyType, OrderKind.ASC);
-            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-        primaryRecFields[numPrimaryKeys] = payloadSerde;
-        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-
-        ITreeIndexFrameFactory primaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(primaryTypeTraits);
-        ITreeIndexFrameFactory primaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(primaryTypeTraits);
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor primaryRecDesc = new RecordDescriptor(primaryRecFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
-                storageManager, treeRegistryProvider, primarySplitsAndConstraint.first, primaryInteriorFrameFactory,
-                primaryLeafFrameFactory, primaryTypeTraits, primaryComparatorFactories, true, lowKeyFields,
-                highKeyFields, true, true, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
-                primarySplitsAndConstraint.second);
-
-        // ---------- END PRIMARY INDEX SCAN
-
-        // ---------- START ASSIGN OP
-
-        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
-        int numSecondaryKeys = secondaryKeyFields.size();
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numSecondaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            evalFactories[i] = datasetDecls.getFormat().getFieldAccessEvaluatorFactory(itemType,
-                    secondaryKeyFields.get(i), numPrimaryKeys);
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(i), itemType);
-            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
-            secondaryRecFields[i] = keySerde;
-        }
-        // fill in serializers and comparators for primary index fields
-        for (i = 0; i < numPrimaryKeys; i++) {
-            secondaryRecFields[numSecondaryKeys + i] = primaryRecFields[i];
-        }
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-
-        int[] outColumns = new int[numSecondaryKeys];
-        int[] projectionList = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            outColumns[i] = numPrimaryKeys + i + 1;
-        }
-        int projCount = 0;
-        for (i = 0; i < numSecondaryKeys; i++) {
-            projectionList[projCount++] = numPrimaryKeys + i + 1;
-        }
-        for (i = 0; i < numPrimaryKeys; i++) {
-            projectionList[projCount++] = i;
-        }
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> assignSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, evalFactories, projectionList);
-        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
-                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
-                assignSplitsAndConstraint.second);
-
-        // ---------- END ASSIGN OP
-
-        // ---------- START TOKENIZER OP
-
-        int numTokenKeyPairFields = numPrimaryKeys + 1;
-
-        ISerializerDeserializer[] tokenKeyPairFields = new ISerializerDeserializer[numTokenKeyPairFields];
-        tokenKeyPairFields[0] = serdeProvider.getSerializerDeserializer(fieldsToTokenizeType);
-        for (i = 0; i < numPrimaryKeys; i++)
-            tokenKeyPairFields[i + 1] = secondaryRecFields[numSecondaryKeys + i];
-        RecordDescriptor tokenKeyPairRecDesc = new RecordDescriptor(tokenKeyPairFields);
-
-        int[] fieldsToTokenize = new int[numSecondaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++)
-            fieldsToTokenize[i] = i;
-
-        int[] primaryKeyFields = new int[numPrimaryKeys];
-        for (i = 0; i < numPrimaryKeys; i++)
-            primaryKeyFields[i] = numSecondaryKeys + i;
-
-        IBinaryTokenizerFactory tokenizerFactory = AqlBinaryTokenizerFactoryProvider.INSTANCE
-                .getTokenizerFactory(fieldsToTokenizeType);
-        BinaryTokenizerOperatorDescriptor tokenizerOp = new BinaryTokenizerOperatorDescriptor(spec,
-                tokenKeyPairRecDesc, tokenizerFactory, fieldsToTokenize, primaryKeyFields);
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, secondaryIndexName);
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, tokenizerOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END TOKENIZER OP
-
-        // ---------- START EXTERNAL SORT OP
-
-        IBinaryComparatorFactory[] tokenKeyPairComparatorFactories = new IBinaryComparatorFactory[numTokenKeyPairFields];
-        tokenKeyPairComparatorFactories[0] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                fieldsToTokenizeType, OrderKind.ASC);
-        for (i = 0; i < numPrimaryKeys; i++)
-            tokenKeyPairComparatorFactories[i + 1] = primaryComparatorFactories[i];
-
-        int[] sortFields = new int[numTokenKeyPairFields]; // <token, primary
-        // key a, primary
-        // key b, etc.>
-        for (i = 0; i < numTokenKeyPairFields; i++)
-            sortFields[i] = i;
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> sorterSplitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(primaryIndexName, primaryIndexName);
-
-        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
-                physicalOptimizationConfig.getMaxFramesExternalSort(), sortFields, tokenKeyPairComparatorFactories,
-                secondaryRecDesc);
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp,
-                sorterSplitsAndConstraint.second);
-
-        // ---------- END EXTERNAL SORT OP
-
-        // ---------- START SECONDARY INDEX BULK LOAD
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numTokenKeyPairFields];
-        secondaryTypeTraits[0] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(fieldsToTokenizeType);
-        for (i = 0; i < numPrimaryKeys; i++)
-            secondaryTypeTraits[i + 1] = primaryTypeTraits[i];
-
-        ITreeIndexFrameFactory secondaryInteriorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory secondaryLeafFrameFactory = AqlMetadataProvider
-                .createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        int[] fieldPermutation = new int[numSecondaryKeys + numPrimaryKeys];
-        for (i = 0; i < numTokenKeyPairFields; i++)
-            fieldPermutation[i] = i;
-
-        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManager, treeRegistryProvider, secondarySplitsAndConstraint.first,
-                secondaryInteriorFrameFactory, secondaryLeafFrameFactory, secondaryTypeTraits,
-                tokenKeyPairComparatorFactories, fieldPermutation, 0.7f, new BTreeDataflowHelperFactory());
-        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryBulkLoadOp,
-                secondarySplitsAndConstraint.second);
-
-        // ---------- END SECONDARY INDEX BULK LOAD
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), primarySearchOp, 0, asterixAssignOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, tokenizerOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), tokenizerOp, 0, sortOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
-
-        spec.addRoot(secondaryBulkLoadOp);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/abehm/workspace/asterix/asterix-app/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-
-        }
-
-        // int port = HyracksIntegrationUtil.DEFAULT_HYRACKS_CC_PORT;
-
-        // AsterixJavaClient q = compileQuery(ddlFile, true, false, true);
-
-        // long start = System.currentTimeMillis();
-        // q.execute(port);
-        // long end = System.currentTimeMillis();
-        // System.err.println(start + " " + end + " " + (end - start));
-    }
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
new file mode 100644
index 0000000..2a1349b
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
@@ -0,0 +1,105 @@
+package edu.uci.ics.asterix.file;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+public class SecondaryBTreeCreator extends SecondaryIndexCreator {
+
+    protected SecondaryBTreeCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(
+                secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, secondaryBloomFilterKeyFields, false,
+                GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMBTreeResource);
+
+        TreeIndexCreateOperatorDescriptor secondaryIndexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
+                secondaryBloomFilterKeyFields, new LSMBTreeDataflowHelperFactory(
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), localResourceFactoryProvider,
+                NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(secondaryIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan. 
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp, numSecondaryKeys);
+
+        // If any of the secondary fields are nullable, then add a select op that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numSecondaryKeys);
+        }
+
+        // Sort by secondary keys.
+        ExternalSortOperatorDescriptor sortOp = createSortOp(spec, secondaryComparatorFactories, secondaryRecDesc);
+
+        // Create secondary BTree bulk load op.
+        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = createTreeIndexBulkLoadOp(spec, numSecondaryKeys,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), BTree.DEFAULT_FILL_FACTOR);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, sortOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, sortOp, 0);
+        }
+        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, secondaryBulkLoadOp, 0);
+        spec.addRoot(secondaryBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
new file mode 100644
index 0000000..e7c2e3e
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
@@ -0,0 +1,373 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.file;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryBooleanInspectorImpl;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetCardinalityHint;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.evaluators.functions.AndDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.IsNullDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NotDescriptor;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.LogicalExpressionJobGenToExpressionRuntimeProviderAdapter;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.evaluators.ColumnAccessEvalFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.AssignRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.StreamSelectRuntimeFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
+import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+
+@SuppressWarnings("rawtypes")
+// TODO: We should eventually have a hierarchy of classes that can create all possible index job specs, 
+// not just for creation.
+public abstract class SecondaryIndexCreator {
+    protected final PhysicalOptimizationConfig physOptConf;
+
+    protected int numPrimaryKeys;
+    protected int numSecondaryKeys;
+    protected AqlMetadataProvider metadataProvider;
+    protected String dataverseName;
+    protected String datasetName;
+    protected Dataset dataset;
+    protected ARecordType itemType;
+    protected ISerializerDeserializer payloadSerde;
+    protected IFileSplitProvider primaryFileSplitProvider;
+    protected AlgebricksPartitionConstraint primaryPartitionConstraint;
+    protected IFileSplitProvider secondaryFileSplitProvider;
+    protected AlgebricksPartitionConstraint secondaryPartitionConstraint;
+    protected String secondaryIndexName;
+    protected boolean anySecondaryKeyIsNullable = false;
+
+    protected long numElementsHint;
+    protected IBinaryComparatorFactory[] primaryComparatorFactories;
+    protected int[] primaryBloomFilterKeyFields;
+    protected RecordDescriptor primaryRecDesc;
+    protected IBinaryComparatorFactory[] secondaryComparatorFactories;
+    protected int[] secondaryBloomFilterKeyFields;
+    protected RecordDescriptor secondaryRecDesc;
+    protected ICopyEvaluatorFactory[] secondaryFieldAccessEvalFactories;
+
+    // Prevent public construction. Should be created via createIndexCreator().
+    protected SecondaryIndexCreator(PhysicalOptimizationConfig physOptConf) {
+        this.physOptConf = physOptConf;
+    }
+
+    public static SecondaryIndexCreator createIndexCreator(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider, PhysicalOptimizationConfig physOptConf) throws AsterixException,
+            AlgebricksException {
+        SecondaryIndexCreator indexCreator = null;
+        switch (createIndexStmt.getIndexType()) {
+            case BTREE: {
+                indexCreator = new SecondaryBTreeCreator(physOptConf);
+                break;
+            }
+            case RTREE: {
+                indexCreator = new SecondaryRTreeCreator(physOptConf);
+                break;
+            }
+            case WORD_INVIX:
+            case NGRAM_INVIX:
+            case FUZZY_WORD_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                indexCreator = new SecondaryInvertedIndexCreator(physOptConf);
+                break;
+            }
+            default: {
+                throw new AsterixException("Unknown Index Type: " + createIndexStmt.getIndexType());
+            }
+        }
+        indexCreator.init(createIndexStmt, metadataProvider);
+        return indexCreator;
+    }
+
+    public abstract JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException;
+
+    public abstract JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException;
+
+    protected void init(CompiledCreateIndexStatement createIndexStmt, AqlMetadataProvider metadataProvider)
+            throws AsterixException, AlgebricksException {
+        this.metadataProvider = metadataProvider;
+        dataverseName = createIndexStmt.getDataverseName() == null ? metadataProvider.getDefaultDataverseName()
+                : createIndexStmt.getDataverseName();
+        datasetName = createIndexStmt.getDatasetName();
+        secondaryIndexName = createIndexStmt.getIndexName();
+        dataset = metadataProvider.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Unknown dataset " + datasetName);
+        }
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            throw new AsterixException("Cannot index an external dataset (" + datasetName + ").");
+        }
+        itemType = (ARecordType) metadataProvider.findType(dataset.getDataverseName(), dataset.getItemTypeName());
+        payloadSerde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(itemType);
+        numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+        numSecondaryKeys = createIndexStmt.getKeyFields().size();
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
+        primaryFileSplitProvider = primarySplitsAndConstraint.first;
+        primaryPartitionConstraint = primarySplitsAndConstraint.second;
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName,
+                        secondaryIndexName);
+        secondaryFileSplitProvider = secondarySplitsAndConstraint.first;
+        secondaryPartitionConstraint = secondarySplitsAndConstraint.second;
+        // Must be called in this order.
+        setPrimaryRecDescAndComparators();
+        setSecondaryRecDescAndComparators(createIndexStmt, metadataProvider);
+
+        String numElementsHintString = dataset.getHints().get("CARDINALITY");
+        if (numElementsHintString == null) {
+            numElementsHint = DatasetCardinalityHint.DEFAULT;
+        } else {
+            numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
+        }
+    }
+
+    protected void setPrimaryRecDescAndComparators() throws AlgebricksException {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numPrimaryKeys = partitioningKeys.size();
+        ISerializerDeserializer[] primaryRecFields = new ISerializerDeserializer[numPrimaryKeys + 1];
+        ITypeTraits[] primaryTypeTraits = new ITypeTraits[numPrimaryKeys + 1];
+        primaryComparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
+        primaryBloomFilterKeyFields = new int[numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = metadataProvider.getFormat().getSerdeProvider();
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+            primaryRecFields[i] = serdeProvider.getSerializerDeserializer(keyType);
+            primaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                    keyType, true);
+            primaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+            primaryBloomFilterKeyFields[i] = i;
+        }
+        primaryRecFields[numPrimaryKeys] = payloadSerde;
+        primaryTypeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
+        primaryRecDesc = new RecordDescriptor(primaryRecFields, primaryTypeTraits);
+    }
+
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadataProvider) throws AlgebricksException, AsterixException {
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        secondaryFieldAccessEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeys];
+        secondaryComparatorFactories = new IBinaryComparatorFactory[numSecondaryKeys + numPrimaryKeys];
+        secondaryBloomFilterKeyFields = new int[numSecondaryKeys];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = metadataProvider.getFormat().getSerdeProvider();
+        ITypeTraitProvider typeTraitProvider = metadataProvider.getFormat().getTypeTraitProvider();
+        IBinaryComparatorFactoryProvider comparatorFactoryProvider = metadataProvider.getFormat()
+                .getBinaryComparatorFactoryProvider();
+        for (int i = 0; i < numSecondaryKeys; i++) {
+            secondaryFieldAccessEvalFactories[i] = metadataProvider.getFormat().getFieldAccessEvaluatorFactory(
+                    itemType, secondaryKeyFields.get(i), numPrimaryKeys);
+            Pair<IAType, Boolean> keyTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(i), itemType);
+            IAType keyType = keyTypePair.first;
+            anySecondaryKeyIsNullable = anySecondaryKeyIsNullable || keyTypePair.second;
+            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(keyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryComparatorFactories[i] = comparatorFactoryProvider.getBinaryComparatorFactory(keyType, true);
+            secondaryTypeTraits[i] = typeTraitProvider.getTypeTrait(keyType);
+            secondaryBloomFilterKeyFields[i] = i;
+        }
+        // Add serializers and comparators for primary index fields.
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            secondaryRecFields[numSecondaryKeys + i] = primaryRecDesc.getFields()[i];
+            secondaryTypeTraits[numSecondaryKeys + i] = primaryRecDesc.getTypeTraits()[i];
+            secondaryComparatorFactories[numSecondaryKeys + i] = primaryComparatorFactories[i];
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+    }
+
+    protected AbstractOperatorDescriptor createDummyKeyProviderOp(JobSpecification spec) throws AsterixException,
+            AlgebricksException {
+        // Build dummy tuple containing one field with a dummy value inside.
+        ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
+        DataOutput dos = tb.getDataOutput();
+        tb.reset();
+        try {
+            // Serialize dummy value into a field.
+            IntegerSerializerDeserializer.INSTANCE.serialize(0, dos);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+        // Add dummy field.
+        tb.addFieldEndOffset();
+        ISerializerDeserializer[] keyRecDescSers = { IntegerSerializerDeserializer.INSTANCE };
+        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
+        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
+                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, keyProviderOp,
+                primaryPartitionConstraint);
+        return keyProviderOp;
+    }
+
+    protected BTreeSearchOperatorDescriptor createPrimaryIndexScanOp(JobSpecification spec) throws AlgebricksException {
+        // -Infinity
+        int[] lowKeyFields = null;
+        // +Infinity
+        int[] highKeyFields = null;
+        BTreeSearchOperatorDescriptor primarySearchOp = new BTreeSearchOperatorDescriptor(spec, primaryRecDesc,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                primaryFileSplitProvider, primaryRecDesc.getTypeTraits(), primaryComparatorFactories,
+                primaryBloomFilterKeyFields, lowKeyFields, highKeyFields, true, true,
+                new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                        GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), false, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, primarySearchOp,
+                primaryPartitionConstraint);
+        return primarySearchOp;
+    }
+
+    protected AlgebricksMetaOperatorDescriptor createAssignOp(JobSpecification spec,
+            BTreeSearchOperatorDescriptor primaryScanOp, int numSecondaryKeyFields) throws AlgebricksException {
+        int[] outColumns = new int[numSecondaryKeyFields];
+        int[] projectionList = new int[numSecondaryKeyFields + numPrimaryKeys];
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            outColumns[i] = numPrimaryKeys + i + 1;
+        }
+        int projCount = 0;
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            projectionList[projCount++] = numPrimaryKeys + i + 1;
+        }
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            projectionList[projCount++] = i;
+        }
+        IScalarEvaluatorFactory[] sefs = new IScalarEvaluatorFactory[secondaryFieldAccessEvalFactories.length];
+        for (int i = 0; i < secondaryFieldAccessEvalFactories.length; ++i) {
+            sefs[i] = new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(
+                    secondaryFieldAccessEvalFactories[i]);
+        }
+        AssignRuntimeFactory assign = new AssignRuntimeFactory(outColumns, sefs, projectionList);
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
+                new IPushRuntimeFactory[] { assign }, new RecordDescriptor[] { secondaryRecDesc });
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixAssignOp,
+                primaryPartitionConstraint);
+        return asterixAssignOp;
+    }
+
+    protected ExternalSortOperatorDescriptor createSortOp(JobSpecification spec,
+            IBinaryComparatorFactory[] secondaryComparatorFactories, RecordDescriptor secondaryRecDesc) {
+        int[] sortFields = new int[secondaryComparatorFactories.length];
+        for (int i = 0; i < secondaryComparatorFactories.length; i++) {
+            sortFields[i] = i;
+        }
+        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
+                physOptConf.getMaxFramesExternalSort(), sortFields, secondaryComparatorFactories, secondaryRecDesc);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp, primaryPartitionConstraint);
+        return sortOp;
+    }
+
+    protected TreeIndexBulkLoadOperatorDescriptor createTreeIndexBulkLoadOp(JobSpecification spec,
+            int numSecondaryKeyFields, IIndexDataflowHelperFactory dataflowHelperFactory, float fillFactor)
+            throws MetadataException, AlgebricksException {
+        int[] fieldPermutation = new int[numSecondaryKeyFields + numPrimaryKeys];
+        for (int i = 0; i < numSecondaryKeyFields + numPrimaryKeys; i++) {
+            fieldPermutation[i] = i;
+        }
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName,
+                        secondaryIndexName);
+        TreeIndexBulkLoadOperatorDescriptor treeIndexBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                secondarySplitsAndConstraint.first, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
+                secondaryBloomFilterKeyFields, fieldPermutation, fillFactor, false, numElementsHint,
+                dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, treeIndexBulkLoadOp,
+                secondarySplitsAndConstraint.second);
+        return treeIndexBulkLoadOp;
+    }
+
+    public AlgebricksMetaOperatorDescriptor createFilterNullsSelectOp(JobSpecification spec, int numSecondaryKeyFields)
+            throws AlgebricksException {
+        ICopyEvaluatorFactory[] andArgsEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeyFields];
+        NotDescriptor notDesc = new NotDescriptor();
+        IsNullDescriptor isNullDesc = new IsNullDescriptor();
+        for (int i = 0; i < numSecondaryKeyFields; i++) {
+            // Access column i, and apply 'is not null'.
+            ColumnAccessEvalFactory columnAccessEvalFactory = new ColumnAccessEvalFactory(i);
+            ICopyEvaluatorFactory isNullEvalFactory = isNullDesc
+                    .createEvaluatorFactory(new ICopyEvaluatorFactory[] { columnAccessEvalFactory });
+            ICopyEvaluatorFactory notEvalFactory = notDesc
+                    .createEvaluatorFactory(new ICopyEvaluatorFactory[] { isNullEvalFactory });
+            andArgsEvalFactories[i] = notEvalFactory;
+        }
+        ICopyEvaluatorFactory selectCond = null;
+        if (numSecondaryKeyFields > 1) {
+            // Create conjunctive condition where all secondary index keys must satisfy 'is not null'.
+            AndDescriptor andDesc = new AndDescriptor();
+            selectCond = andDesc.createEvaluatorFactory(andArgsEvalFactories);
+        } else {
+            selectCond = andArgsEvalFactories[0];
+        }
+        StreamSelectRuntimeFactory select = new StreamSelectRuntimeFactory(
+                new LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.ScalarEvaluatorFactoryAdapter(selectCond),
+                null, AqlBinaryBooleanInspectorImpl.FACTORY);
+        AlgebricksMetaOperatorDescriptor asterixSelectOp = new AlgebricksMetaOperatorDescriptor(spec, 1, 1,
+                new IPushRuntimeFactory[] { select }, new RecordDescriptor[] { secondaryRecDesc });
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, asterixSelectOp,
+                primaryPartitionConstraint);
+        return asterixSelectOp;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
new file mode 100644
index 0000000..0bf379d
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
@@ -0,0 +1,278 @@
+package edu.uci.ics.asterix.file;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.runtime.formats.FormatUtils;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMInvertedIndexLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.ShortPointable;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.ShortSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.BinaryTokenizerOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.PartitionedLSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+public class SecondaryInvertedIndexCreator extends SecondaryIndexCreator {
+
+    private IAType secondaryKeyType;
+    private ITypeTraits[] invListsTypeTraits;
+    private IBinaryComparatorFactory[] tokenComparatorFactories;
+    private ITypeTraits[] tokenTypeTraits;
+    private IBinaryTokenizerFactory tokenizerFactory;
+    // For tokenization, sorting and loading. Represents <token, primary keys>.
+    private int numTokenKeyPairFields;
+    private IBinaryComparatorFactory[] tokenKeyPairComparatorFactories;
+    private RecordDescriptor tokenKeyPairRecDesc;
+    private boolean isPartitioned;
+
+    protected SecondaryInvertedIndexCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    @SuppressWarnings("rawtypes")
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadata) throws AlgebricksException, AsterixException {
+        // Sanity checks.
+        if (numPrimaryKeys > 1) {
+            throw new AsterixException("Cannot create inverted index on dataset with composite primary key.");
+        }
+        if (numSecondaryKeys > 1) {
+            throw new AsterixException("Cannot create composite inverted index on multiple fields.");
+        }
+        if (createIndexStmt.getIndexType() == IndexType.FUZZY_WORD_INVIX
+                || createIndexStmt.getIndexType() == IndexType.FUZZY_NGRAM_INVIX) {
+            isPartitioned = true;
+        } else {
+            isPartitioned = false;
+        }
+        // Prepare record descriptor used in the assign op, and the optional
+        // select op.
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        secondaryFieldAccessEvalFactories = new ICopyEvaluatorFactory[numSecondaryKeys];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys + numSecondaryKeys];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numSecondaryKeys + numPrimaryKeys];
+        ISerializerDeserializerProvider serdeProvider = FormatUtils.getDefaultFormat().getSerdeProvider();
+        ITypeTraitProvider typeTraitProvider = FormatUtils.getDefaultFormat().getTypeTraitProvider();
+        for (int i = 0; i < numSecondaryKeys; i++) {
+            secondaryFieldAccessEvalFactories[i] = FormatUtils.getDefaultFormat().getFieldAccessEvaluatorFactory(
+                    itemType, secondaryKeyFields.get(i), numPrimaryKeys);
+            Pair<IAType, Boolean> keyTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(i), itemType);
+            secondaryKeyType = keyTypePair.first;
+            anySecondaryKeyIsNullable = anySecondaryKeyIsNullable || keyTypePair.second;
+            ISerializerDeserializer keySerde = serdeProvider.getSerializerDeserializer(secondaryKeyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryTypeTraits[i] = typeTraitProvider.getTypeTrait(secondaryKeyType);
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+        // Comparators and type traits for tokens.
+        int numTokenFields = (!isPartitioned) ? numSecondaryKeys : numSecondaryKeys + 1;
+        tokenComparatorFactories = new IBinaryComparatorFactory[numTokenFields];
+        tokenTypeTraits = new ITypeTraits[numTokenFields];
+        tokenComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+        tokenTypeTraits[0] = NonTaggedFormatUtil.getTokenTypeTrait(secondaryKeyType);
+        if (isPartitioned) {
+            // The partitioning field is hardcoded to be a short *without* an Asterix type tag.
+            tokenComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
+            tokenTypeTraits[1] = ShortPointable.TYPE_TRAITS;
+        }
+        // Set tokenizer factory.
+        // TODO: We might want to expose the hashing option at the AQL level,
+        // and add the choice to the index metadata.
+        tokenizerFactory = NonTaggedFormatUtil.getBinaryTokenizerFactory(secondaryKeyType.getTypeTag(),
+                createIndexStmt.getIndexType(), createIndexStmt.getGramLength());
+        // Type traits for inverted-list elements. Inverted lists contain
+        // primary keys.
+        invListsTypeTraits = new ITypeTraits[numPrimaryKeys];
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            invListsTypeTraits[i] = primaryRecDesc.getTypeTraits()[i];
+        }
+        // For tokenization, sorting and loading.
+        // One token (+ optional partitioning field) + primary keys.
+        numTokenKeyPairFields = (!isPartitioned) ? 1 + numPrimaryKeys : 2 + numPrimaryKeys;
+        ISerializerDeserializer[] tokenKeyPairFields = new ISerializerDeserializer[numTokenKeyPairFields];
+        ITypeTraits[] tokenKeyPairTypeTraits = new ITypeTraits[numTokenKeyPairFields];
+        tokenKeyPairComparatorFactories = new IBinaryComparatorFactory[numTokenKeyPairFields];
+        tokenKeyPairFields[0] = serdeProvider.getSerializerDeserializer(secondaryKeyType);
+        tokenKeyPairTypeTraits[0] = tokenTypeTraits[0];
+        tokenKeyPairComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+        int pkOff = 1;
+        if (isPartitioned) {
+            tokenKeyPairFields[1] = ShortSerializerDeserializer.INSTANCE;
+            tokenKeyPairTypeTraits[1] = tokenTypeTraits[1];
+            tokenKeyPairComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
+            pkOff = 2;
+        }
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            tokenKeyPairFields[i + pkOff] = primaryRecDesc.getFields()[i];
+            tokenKeyPairTypeTraits[i + pkOff] = primaryRecDesc.getTypeTraits()[i];
+            tokenKeyPairComparatorFactories[i + pkOff] = primaryComparatorFactories[i];
+        }
+        tokenKeyPairRecDesc = new RecordDescriptor(tokenKeyPairFields, tokenKeyPairTypeTraits);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMInvertedIndexLocalResourceMetadata(invListsTypeTraits,
+                primaryComparatorFactories, tokenTypeTraits, tokenComparatorFactories, tokenizerFactory,
+                GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES, isPartitioned);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMInvertedIndexResource);
+
+        IIndexDataflowHelperFactory dataflowHelperFactory = createDataflowHelperFactory();
+        LSMInvertedIndexCreateOperatorDescriptor invIndexCreateOp = new LSMInvertedIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, secondaryFileSplitProvider,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, tokenTypeTraits, tokenComparatorFactories,
+                invListsTypeTraits, primaryComparatorFactories, tokenizerFactory, dataflowHelperFactory,
+                localResourceFactoryProvider, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, invIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(invIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan.
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp, numSecondaryKeys);
+
+        // If any of the secondary fields are nullable, then add a select op
+        // that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numSecondaryKeys);
+        }
+
+        // Create a tokenizer op.
+        AbstractOperatorDescriptor tokenizerOp = createTokenizerOp(spec);
+
+        // Sort by token + primary keys.
+        ExternalSortOperatorDescriptor sortOp = createSortOp(spec, tokenKeyPairComparatorFactories, tokenKeyPairRecDesc);
+
+        // Create secondary inverted index bulk load op.
+        LSMInvertedIndexBulkLoadOperatorDescriptor invIndexBulkLoadOp = createInvertedIndexBulkLoadOp(spec);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, tokenizerOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, tokenizerOp, 0);
+        }
+        spec.connect(new OneToOneConnectorDescriptor(spec), tokenizerOp, 0, sortOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), sortOp, 0, invIndexBulkLoadOp, 0);
+        spec.addRoot(invIndexBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    private AbstractOperatorDescriptor createTokenizerOp(JobSpecification spec) throws AlgebricksException {
+        int docField = 0;
+        int[] primaryKeyFields = new int[numPrimaryKeys];
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            primaryKeyFields[i] = numSecondaryKeys + i;
+        }
+        BinaryTokenizerOperatorDescriptor tokenizerOp = new BinaryTokenizerOperatorDescriptor(spec,
+                tokenKeyPairRecDesc, tokenizerFactory, docField, primaryKeyFields, isPartitioned);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, tokenizerOp,
+                primaryPartitionConstraint);
+        return tokenizerOp;
+    }
+
+    @Override
+    protected ExternalSortOperatorDescriptor createSortOp(JobSpecification spec,
+            IBinaryComparatorFactory[] secondaryComparatorFactories, RecordDescriptor secondaryRecDesc) {
+        // Sort on token and primary keys.
+        int[] sortFields = new int[numTokenKeyPairFields];
+        for (int i = 0; i < numTokenKeyPairFields; i++) {
+            sortFields[i] = i;
+        }
+        ExternalSortOperatorDescriptor sortOp = new ExternalSortOperatorDescriptor(spec,
+                physOptConf.getMaxFramesExternalSort(), sortFields, tokenKeyPairComparatorFactories, secondaryRecDesc);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, sortOp, primaryPartitionConstraint);
+        return sortOp;
+    }
+
+    private LSMInvertedIndexBulkLoadOperatorDescriptor createInvertedIndexBulkLoadOp(JobSpecification spec) {
+        int[] fieldPermutation = new int[numTokenKeyPairFields];
+        for (int i = 0; i < numTokenKeyPairFields; i++) {
+            fieldPermutation[i] = i;
+        }
+        IIndexDataflowHelperFactory dataflowHelperFactory = createDataflowHelperFactory();
+        LSMInvertedIndexBulkLoadOperatorDescriptor invIndexBulkLoadOp = new LSMInvertedIndexBulkLoadOperatorDescriptor(
+                spec, fieldPermutation, false, numElementsHint, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, tokenTypeTraits,
+                tokenComparatorFactories, invListsTypeTraits, primaryComparatorFactories, tokenizerFactory,
+                dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, invIndexBulkLoadOp,
+                secondaryPartitionConstraint);
+        return invIndexBulkLoadOp;
+    }
+
+    private IIndexDataflowHelperFactory createDataflowHelperFactory() {
+        if (!isPartitioned) {
+            return new LSMInvertedIndexDataflowHelperFactory(
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        } else {
+            return new PartitionedLSMInvertedIndexDataflowHelperFactory(
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                    GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        }
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
new file mode 100644
index 0000000..6f400f9
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
@@ -0,0 +1,178 @@
+package edu.uci.ics.asterix.file;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
+import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMRTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.dataflow.LSMRTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+@SuppressWarnings("rawtypes")
+public class SecondaryRTreeCreator extends SecondaryIndexCreator {
+
+    protected IPrimitiveValueProviderFactory[] valueProviderFactories;
+    protected int numNestedSecondaryKeyFields;
+    protected ATypeTag keyType;
+
+    protected SecondaryRTreeCreator(PhysicalOptimizationConfig physOptConf) {
+        super(physOptConf);
+    }
+
+    @Override
+    public JobSpecification buildCreationJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
+        ILocalResourceMetadata localResourceMetadata = new LSMRTreeLocalResourceMetadata(
+                secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, primaryComparatorFactories,
+                valueProviderFactories, RTreePolicyType.RTREE, AqlMetadataProvider.proposeLinearizer(keyType,
+                        secondaryComparatorFactories.length), GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE,
+                GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+        ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                localResourceMetadata, LocalResource.LSMRTreeResource);
+
+        TreeIndexCreateOperatorDescriptor secondaryIndexCreateOp = new TreeIndexCreateOperatorDescriptor(spec,
+                AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER, AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER,
+                secondaryFileSplitProvider, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, null,
+                new LSMRTreeDataflowHelperFactory(valueProviderFactories, RTreePolicyType.RTREE,
+                        primaryComparatorFactories, AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, AqlMetadataProvider.proposeLinearizer(
+                                keyType, secondaryComparatorFactories.length),
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                localResourceFactoryProvider, NoOpOperationCallbackFactory.INSTANCE);
+        AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, secondaryIndexCreateOp,
+                secondaryPartitionConstraint);
+        spec.addRoot(secondaryIndexCreateOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+
+    @Override
+    protected void setSecondaryRecDescAndComparators(CompiledCreateIndexStatement createIndexStmt,
+            AqlMetadataProvider metadata) throws AlgebricksException, AsterixException {
+        List<String> secondaryKeyFields = createIndexStmt.getKeyFields();
+        int numSecondaryKeys = secondaryKeyFields.size();
+        if (numSecondaryKeys != 1) {
+            throw new AsterixException(
+                    "Cannot use "
+                            + numSecondaryKeys
+                            + " fields as a key for the R-tree index. There can be only one field as a key for the R-tree index.");
+        }
+        Pair<IAType, Boolean> spatialTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(0), itemType);
+        IAType spatialType = spatialTypePair.first;
+        anySecondaryKeyIsNullable = spatialTypePair.second;
+        if (spatialType == null) {
+            throw new AsterixException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
+        }
+        int numDimensions = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
+        numNestedSecondaryKeyFields = numDimensions * 2;
+        secondaryFieldAccessEvalFactories = metadata.getFormat().createMBRFactory(itemType, secondaryKeyFields.get(0),
+                numPrimaryKeys, numDimensions);
+        secondaryComparatorFactories = new IBinaryComparatorFactory[numNestedSecondaryKeyFields];
+        valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
+        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[numPrimaryKeys
+                + numNestedSecondaryKeyFields];
+        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[numNestedSecondaryKeyFields + numPrimaryKeys];
+        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(spatialType.getTypeTag());
+        keyType = nestedKeyType.getTypeTag();
+        for (int i = 0; i < numNestedSecondaryKeyFields; i++) {
+            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
+                    .getSerializerDeserializer(nestedKeyType);
+            secondaryRecFields[i] = keySerde;
+            secondaryComparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                    nestedKeyType, true);
+            secondaryTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
+            valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
+        }
+        // Add serializers and comparators for primary index fields.
+        for (int i = 0; i < numPrimaryKeys; i++) {
+            secondaryRecFields[numNestedSecondaryKeyFields + i] = primaryRecDesc.getFields()[i];
+            secondaryTypeTraits[numNestedSecondaryKeyFields + i] = primaryRecDesc.getTypeTraits()[i];
+        }
+        secondaryRecDesc = new RecordDescriptor(secondaryRecFields, secondaryTypeTraits);
+    }
+
+    @Override
+    public JobSpecification buildLoadingJobSpec() throws AsterixException, AlgebricksException {
+        JobSpecification spec = new JobSpecification();
+
+        // Create dummy key provider for feeding the primary index scan. 
+        AbstractOperatorDescriptor keyProviderOp = createDummyKeyProviderOp(spec);
+
+        // Create primary index scan op.
+        BTreeSearchOperatorDescriptor primaryScanOp = createPrimaryIndexScanOp(spec);
+
+        // Assign op.
+        AlgebricksMetaOperatorDescriptor asterixAssignOp = createAssignOp(spec, primaryScanOp,
+                numNestedSecondaryKeyFields);
+
+        // If any of the secondary fields are nullable, then add a select op that filters nulls.
+        AlgebricksMetaOperatorDescriptor selectOp = null;
+        if (anySecondaryKeyIsNullable) {
+            selectOp = createFilterNullsSelectOp(spec, numNestedSecondaryKeyFields);
+        }
+
+        // Create secondary RTree bulk load op.
+        TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoadOp = createTreeIndexBulkLoadOp(
+                spec,
+                numNestedSecondaryKeyFields,
+                new LSMRTreeDataflowHelperFactory(valueProviderFactories, RTreePolicyType.RTREE,
+                        primaryComparatorFactories, AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                        AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, AqlMetadataProvider.proposeLinearizer(
+                                keyType, secondaryComparatorFactories.length),
+                        GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                BTree.DEFAULT_FILL_FACTOR);
+
+        // Connect the operators.
+        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primaryScanOp, 0);
+        spec.connect(new OneToOneConnectorDescriptor(spec), primaryScanOp, 0, asterixAssignOp, 0);
+        if (anySecondaryKeyIsNullable) {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, selectOp, 0);
+            spec.connect(new OneToOneConnectorDescriptor(spec), selectOp, 0, secondaryBulkLoadOp, 0);
+        } else {
+            spec.connect(new OneToOneConnectorDescriptor(spec), asterixAssignOp, 0, secondaryBulkLoadOp, 0);
+        }
+        spec.addRoot(secondaryBulkLoadOp);
+        spec.setConnectorPolicyAssignmentPolicy(new ConnectorPolicyAssignmentPolicy());
+        return spec;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java
deleted file mode 100644
index 91af8de..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestKeywordIndexJob.java
+++ /dev/null
@@ -1,235 +0,0 @@
-package edu.uci.ics.asterix.file;
-
-import java.io.DataOutput;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectAscBinaryComparatorFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.LongParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.misc.PrinterOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class TestKeywordIndexJob {
-
-    private static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
-    static {
-        typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
-    }
-
-    public static int DEFAULT_INPUT_DATA_COLUMN = 0;
-    public static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
-
-    @SuppressWarnings("unchecked")
-    public JobSpecification createJobSpec() throws AsterixException, HyracksDataException {
-
-        JobSpecification spec = new JobSpecification();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        List<String> nodeGroup = new ArrayList<String>();
-        nodeGroup.add("nc1");
-        nodeGroup.add("nc2");
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        AObjectSerializerDeserializer.INSTANCE.serialize(new AString("Jodi Rotruck"), dos); // dummy
-        // field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { AObjectSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        String[] keyProviderOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            keyProviderOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, keyProviderOp, keyProviderOpLocationConstraint);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START SECONRARY INDEX SCAN
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[2];
-        secondaryTypeTraits[0] = new ITypeTraits() {
-            
-            @Override
-            public boolean isFixedLength() {
-                return false;
-            }
-            
-            @Override
-            public int getFixedLength() {
-                return -1;
-            }
-        };
-        
-        secondaryTypeTraits[1] = new ITypeTraits() {
-            
-            @Override
-            public boolean isFixedLength() {
-                return true;
-            }
-            
-            @Override
-            public int getFixedLength() {
-                return 5;
-            }
-        };
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[2];
-        secondaryRecFields[0] = AObjectSerializerDeserializer.INSTANCE;
-        secondaryRecFields[1] = AObjectSerializerDeserializer.INSTANCE;
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[2];
-        secondaryComparatorFactories[0] = AObjectAscBinaryComparatorFactory.INSTANCE;
-        secondaryComparatorFactories[1] = AObjectAscBinaryComparatorFactory.INSTANCE;
-
-        int[] lowKeyFields = null;
-        int[] highKeyFields = null;
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-        // TODO: change file splits according to mount points in cluster config
-        IFileSplitProvider secondarySplitProvider = new ConstantFileSplitProvider(new FileSplit[] {
-                new FileSplit("nc1", new FileReference(new File("/tmp/nc1/demo1112/Customers_idx_NameInvIndex"))),
-                new FileSplit("nc2", new FileReference(new File("/tmp/nc2/demo1112/Customers_idx_NameInvIndex"))) });
-        BTreeSearchOperatorDescriptor secondarySearchOp = new BTreeSearchOperatorDescriptor(spec, secondaryRecDesc,
-                storageManager, btreeRegistryProvider, secondarySplitProvider, interiorFrameFactory, leafFrameFactory,
-                secondaryTypeTraits, secondaryComparatorFactories, true, lowKeyFields, highKeyFields, true, true,
-                new BTreeDataflowHelperFactory());
-        String[] secondarySearchOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            secondarySearchOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondarySearchOp,
-                secondarySearchOpLocationConstraint);
-
-        // ---------- END SECONDARY INDEX SCAN
-
-        PrinterOperatorDescriptor printer = new PrinterOperatorDescriptor(spec);
-        String[] printerLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            printerLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, printerLocationConstraint);
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, secondarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), secondarySearchOp, 0, printer, 0);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        spec.addRoot(printer);
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/abehm/workspace/asterix/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-        }
-
-        int port = 1098;
-        IHyracksClientConnection hcc = new HyracksConnection(host, port);
-
-        TestKeywordIndexJob tij = new TestKeywordIndexJob();
-        JobSpecification jobSpec = tij.createJobSpec();
-        JobId jobId = hcc.createJob("asterix", jobSpec);
-
-        long start = System.currentTimeMillis();
-        hcc.start(jobId);
-        hcc.waitForCompletion(jobId);
-        long end = System.currentTimeMillis();
-        System.err.println(start + " " + end + " " + (end - start));
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java
deleted file mode 100644
index 025fa16..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/TestSecondaryIndexJob.java
+++ /dev/null
@@ -1,237 +0,0 @@
-package edu.uci.ics.asterix.file;
-
-import java.io.DataOutput;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.UUID;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixStorageManagerInterface;
-import edu.uci.ics.asterix.context.AsterixTreeRegistryProvider;
-import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectAscBinaryComparatorFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
-import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenHelper;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.LongParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
-import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.dataflow.std.misc.ConstantTupleSourceOperatorDescriptor;
-import edu.uci.ics.hyracks.dataflow.std.misc.PrinterOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class TestSecondaryIndexJob {
-
-    private static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
-    static {
-        typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
-    }
-
-    public static int DEFAULT_INPUT_DATA_COLUMN = 0;
-    public static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
-
-    @SuppressWarnings("unchecked")
-    public JobSpecification createJobSpec() throws AsterixException, HyracksDataException {
-
-        JobSpecification spec = new JobSpecification();
-
-        // ---------- START GENERAL BTREE STUFF
-
-        IIndexRegistryProvider<IIndex> btreeRegistryProvider = AsterixTreeRegistryProvider.INSTANCE;
-        IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
-
-        // ---------- END GENERAL BTREE STUFF
-
-        List<String> nodeGroup = new ArrayList<String>();
-        nodeGroup.add("nc1");
-        nodeGroup.add("nc2");
-
-        // ---------- START KEY PROVIDER OP
-
-        // TODO: should actually be empty tuple source
-        // build tuple containing low and high search keys
-        ArrayTupleBuilder tb = new ArrayTupleBuilder(1); // just one dummy field
-        DataOutput dos = tb.getDataOutput();
-
-        tb.reset();
-        AObjectSerializerDeserializer.INSTANCE.serialize(new AString("Jodi Rotruck"), dos); // dummy
-        // field
-        tb.addFieldEndOffset();
-
-        ISerializerDeserializer[] keyRecDescSers = { AObjectSerializerDeserializer.INSTANCE };
-        RecordDescriptor keyRecDesc = new RecordDescriptor(keyRecDescSers);
-
-        ConstantTupleSourceOperatorDescriptor keyProviderOp = new ConstantTupleSourceOperatorDescriptor(spec,
-                keyRecDesc, tb.getFieldEndOffsets(), tb.getByteArray(), tb.getSize());
-        String[] keyProviderOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            keyProviderOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, keyProviderOp, keyProviderOpLocationConstraint);
-
-        // ---------- END KEY PROVIDER OP
-
-        // ---------- START SECONRARY INDEX SCAN
-
-        ITypeTraits[] secondaryTypeTraits = new ITypeTraits[2];
-        secondaryTypeTraits[0] = new ITypeTraits() {
-
-            @Override
-            public boolean isFixedLength() {
-                return false;
-            }
-
-            @Override
-            public int getFixedLength() {
-                return -1;
-            }
-        };
-
-        secondaryTypeTraits[1] = new ITypeTraits() {
-
-            @Override
-            public boolean isFixedLength() {
-                return true;
-            }
-
-            @Override
-            public int getFixedLength() {
-                return 5;
-            }
-        };
-
-        ITreeIndexFrameFactory interiorFrameFactory = AqlMetadataProvider
-                .createBTreeNSMInteriorFrameFactory(secondaryTypeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = AqlMetadataProvider.createBTreeNSMLeafFrameFactory(secondaryTypeTraits);
-
-        ISerializerDeserializer[] secondaryRecFields = new ISerializerDeserializer[2];
-        secondaryRecFields[0] = AObjectSerializerDeserializer.INSTANCE;
-        secondaryRecFields[1] = AObjectSerializerDeserializer.INSTANCE;
-        IBinaryComparatorFactory[] secondaryComparatorFactories = new IBinaryComparatorFactory[2];
-        secondaryComparatorFactories[0] = AObjectAscBinaryComparatorFactory.INSTANCE;
-        secondaryComparatorFactories[1] = AObjectAscBinaryComparatorFactory.INSTANCE;
-
-        int[] lowKeyFields = null; // -infinity
-        int[] highKeyFields = null; // +infinity
-        RecordDescriptor secondaryRecDesc = new RecordDescriptor(secondaryRecFields);
-        // TODO: change file splits according to mount points in cluster config
-        IFileSplitProvider secondarySplitProvider = new ConstantFileSplitProvider(new FileSplit[] {
-                new FileSplit("nc1", new FileReference(new File("/tmp/nc1/demo1112/Customers_idx_NameBtreeIndex"))),
-                new FileSplit("nc2", new FileReference(new File("/tmp/nc2/demo1112/Customers_idx_NameBtreeIndex"))) });
-        BTreeSearchOperatorDescriptor secondarySearchOp = new BTreeSearchOperatorDescriptor(spec, secondaryRecDesc,
-                storageManager, btreeRegistryProvider, secondarySplitProvider, interiorFrameFactory, leafFrameFactory,
-                secondaryTypeTraits, secondaryComparatorFactories, true, lowKeyFields, highKeyFields, true, true,
-                new BTreeDataflowHelperFactory());
-        String[] secondarySearchOpLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            secondarySearchOpLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondarySearchOp,
-                secondarySearchOpLocationConstraint);
-
-        // ---------- END SECONDARY INDEX SCAN
-
-        PrinterOperatorDescriptor printer = new PrinterOperatorDescriptor(spec);
-        String[] printerLocationConstraint = new String[nodeGroup.size()];
-        for (int p = 0; p < nodeGroup.size(); p++) {
-            printerLocationConstraint[p] = nodeGroup.get(p);
-        }
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, printerLocationConstraint);
-
-        // ---------- START CONNECT THE OPERATORS
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, secondarySearchOp, 0);
-
-        spec.connect(new OneToOneConnectorDescriptor(spec), secondarySearchOp, 0, printer, 0);
-
-        // ---------- END CONNECT THE OPERATORS
-
-        spec.addRoot(printer);
-
-        return spec;
-    }
-
-    public static void main(String[] args) throws Exception {
-        String host;
-        String appName;
-        String ddlFile;
-
-        switch (args.length) {
-            case 0: {
-                host = "127.0.0.1";
-                appName = "asterix";
-                ddlFile = "/home/nicnic/workspace/asterix/trunk/asterix/asterix-app/src/test/resources/demo0927/local/create-index.aql";
-                System.out.println("No arguments specified, using defauls:");
-                System.out.println("HYRACKS HOST: " + host);
-                System.out.println("APPNAME:      " + appName);
-                System.out.println("DDLFILE:      " + ddlFile);
-            }
-                break;
-
-            case 3: {
-                host = args[0];
-                appName = args[1];
-                ddlFile = args[2];
-            }
-                break;
-
-            default: {
-                System.out.println("USAGE:");
-                System.out.println("ARG 1: Hyracks Host (IP or Hostname)");
-                System.out.println("ARG 2: Application Name (e.g., asterix)");
-                System.out.println("ARG 3: DDL File");
-                host = null;
-                appName = null;
-                ddlFile = null;
-                System.exit(0);
-            }
-                break;
-        }
-
-        int port = 1098;
-        IHyracksClientConnection hcc = new HyracksConnection(host, port);
-
-        TestSecondaryIndexJob tij = new TestSecondaryIndexJob();
-        JobSpecification jobSpec = tij.createJobSpec();
-        JobId jobId = hcc.createJob("asterix", jobSpec);
-
-        long start = System.currentTimeMillis();
-        hcc.start(jobId);
-        hcc.waitForCompletion(jobId);
-        long end = System.currentTimeMillis();
-        System.err.println(start + " " + end + " " + (end - start));
-    }
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java
deleted file mode 100644
index dbf1625..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/AsterixNodeState.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.hyracks.bootstrap;
-
-import java.io.Serializable;
-
-public class AsterixNodeState implements Serializable {
-
-    private static final long serialVersionUID = 1L;
-
-    private int apiNodeDataServerPort;
-
-    public int getAPINodeDataServerPort() {
-        return apiNodeDataServerPort;
-    }
-
-    public void setAPINodeDataServerPort(int port) {
-        this.apiNodeDataServerPort = port;
-    }
-
-}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
new file mode 100644
index 0000000..5ab94f3
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
@@ -0,0 +1,120 @@
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.servlet.ServletContextHandler;
+import org.eclipse.jetty.servlet.ServletHolder;
+
+import edu.uci.ics.asterix.api.http.servlet.APIServlet;
+import edu.uci.ics.asterix.api.http.servlet.DDLAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryResultAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.QueryStatusAPIServlet;
+import edu.uci.ics.asterix.api.http.servlet.UpdateAPIServlet;
+import edu.uci.ics.asterix.common.api.AsterixAppContextInfoImpl;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
+import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
+import edu.uci.ics.asterix.metadata.bootstrap.AsterixStateProxy;
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+import edu.uci.ics.hyracks.api.application.ICCApplicationEntryPoint;
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+
+public class CCApplicationEntryPoint implements ICCApplicationEntryPoint {
+    private static final Logger LOGGER = Logger.getLogger(CCApplicationEntryPoint.class.getName());
+
+    private static final String HYRACKS_CONNECTION_ATTR = "edu.uci.ics.asterix.HYRACKS_CONNECTION";
+
+    private static final int DEFAULT_WEB_SERVER_PORT = 19001;
+
+    private static final int DEFAULT_JSON_API_SERVER_PORT = 19101;
+
+    private Server webServer;
+    private Server jsonAPIServer;
+    private static IAsterixStateProxy proxy;
+    private ICCApplicationContext appCtx;
+
+    @Override
+    public void start(ICCApplicationContext ccAppCtx, String[] args) throws Exception {
+        this.appCtx = ccAppCtx;
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Starting Asterix cluster controller");
+        }
+
+        proxy = AsterixStateProxy.registerRemoteObject();
+        proxy.setAsterixProperties(AsterixProperties.INSTANCE);
+        appCtx.setDistributedState(proxy);
+
+        MetadataManager.INSTANCE = new MetadataManager(proxy);
+
+        setupWebServer();
+        webServer.start();
+
+        // Setup and start the web interface
+        setupJSONAPIServer();
+        jsonAPIServer.start();
+
+        AsterixAppContextInfoImpl.initialize(appCtx);
+    }
+
+    @Override
+    public void stop() throws Exception {
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Stopping Asterix cluster controller");
+        }
+        AsterixStateProxy.unregisterRemoteObject();
+
+        webServer.stop();
+        jsonAPIServer.stop();
+    }
+
+    private IHyracksClientConnection getNewHyracksClientConnection() throws Exception {
+        String strIP = appCtx.getCCContext().getClusterControllerInfo().getClientNetAddress();
+        int port = appCtx.getCCContext().getClusterControllerInfo().getClientNetPort();
+        return new HyracksConnection(strIP, port);
+    }
+
+    private void setupWebServer() throws Exception {
+        String portStr = System.getProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY);
+        int port = DEFAULT_WEB_SERVER_PORT;
+        if (portStr != null) {
+            port = Integer.parseInt(portStr);
+        }
+        webServer = new Server(port);
+
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/");
+
+        IHyracksClientConnection hcc = getNewHyracksClientConnection();
+        context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+        webServer.setHandler(context);
+        context.addServlet(new ServletHolder(new APIServlet()), "/*");
+    }
+
+    private void setupJSONAPIServer() throws Exception {
+        String portStr = System.getProperty(GlobalConfig.JSON_API_SERVER_PORT_PROPERTY);
+        int port = DEFAULT_JSON_API_SERVER_PORT;
+        if (portStr != null) {
+            port = Integer.parseInt(portStr);
+        }
+        jsonAPIServer = new Server(port);
+
+        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        context.setContextPath("/");
+
+        IHyracksClientConnection hcc = getNewHyracksClientConnection();
+        context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
+
+        jsonAPIServer.setHandler(context);
+        context.addServlet(new ServletHolder(new QueryAPIServlet()), "/query");
+        context.addServlet(new ServletHolder(new QueryStatusAPIServlet()), "/query/status");
+        context.addServlet(new ServletHolder(new QueryResultAPIServlet()), "/query/result");
+        context.addServlet(new ServletHolder(new UpdateAPIServlet()), "/update");
+        context.addServlet(new ServletHolder(new DDLAPIServlet()), "/ddl");
+    }
+}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java
deleted file mode 100644
index bcbfb8c..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCBootstrapImpl.java
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.hyracks.bootstrap;
-
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Set;
-import java.util.logging.Logger;
-
-import org.eclipse.jetty.server.Server;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
-
-import edu.uci.ics.asterix.api.aqlj.server.APIClientThreadFactory;
-import edu.uci.ics.asterix.api.aqlj.server.ThreadedServer;
-import edu.uci.ics.asterix.api.http.servlet.APIServlet;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixStateProxy;
-import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
-import edu.uci.ics.hyracks.api.application.ICCBootstrap;
-
-public class CCBootstrapImpl implements ICCBootstrap {
-    private static final Logger LOGGER = Logger.getLogger(CCBootstrapImpl.class.getName());
-
-    private static final int DEFAULT_WEB_SERVER_PORT = 19001;
-    public static final int DEFAULT_API_SERVER_PORT = 14600;
-    private static final int DEFAULT_API_NODEDATA_SERVER_PORT = 14601;
-
-    private Server server;
-    private static IAsterixStateProxy proxy;
-    private ICCApplicationContext appCtx;
-    private ThreadedServer apiServer;
-
-    @Override
-    public void start() throws Exception {
-        LOGGER.info("Starting Asterix CC Bootstrap");
-        String portStr = System.getProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY);
-        int port = DEFAULT_WEB_SERVER_PORT;
-        if (portStr != null) {
-            port = Integer.parseInt(portStr);
-        }
-        server = new Server(port);
-        ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
-        context.setContextPath("/");
-        server.setHandler(context);
-
-        context.addServlet(new ServletHolder(new APIServlet()), "/*");
-        server.start();
-        proxy = AsterixStateProxy.registerRemoteObject();
-        proxy.setAsterixProperties(AsterixProperties.INSTANCE);
-
-        // set the APINodeDataServer ports
-        int startPort = DEFAULT_API_NODEDATA_SERVER_PORT;
-        Map<String, Set<String>> nodeNameMap = new HashMap<String, Set<String>>();
-        try {
-            appCtx.getCCContext().getIPAddressNodeMap(nodeNameMap);
-        } catch (Exception e) {
-            throw new IOException(" unable to obtain IP address node map", e);
-        }
-        for (Map.Entry<String, Set<String>> entry : nodeNameMap.entrySet()) {
-            Set<String> nodeNames = entry.getValue();
-            Iterator<String> it = nodeNames.iterator();
-            while (it.hasNext()) {
-                AsterixNodeState ns = new AsterixNodeState();
-                ns.setAPINodeDataServerPort(startPort);
-                proxy.setAsterixNodeState(it.next(), ns);
-                startPort++;
-            }
-        }
-
-        appCtx.setDistributedState(proxy);
-        MetadataManager.INSTANCE = new MetadataManager(proxy);
-        apiServer = new ThreadedServer(DEFAULT_API_SERVER_PORT, new APIClientThreadFactory(appCtx));
-        apiServer.start();
-    }
-
-    @Override
-    public void stop() throws Exception {
-        LOGGER.info("Stopping Asterix CC Bootstrap");
-        AsterixStateProxy.deRegisterRemoteObject();
-        server.stop();
-        apiServer.shutdown();
-    }
-
-    @Override
-    public void setApplicationContext(ICCApplicationContext appCtx) {
-        this.appCtx = appCtx;
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
new file mode 100644
index 0000000..f332155
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
@@ -0,0 +1,170 @@
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.rmi.RemoteException;
+import java.rmi.server.UnicastRemoteObject;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataNode;
+import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
+import edu.uci.ics.asterix.metadata.api.IMetadataNode;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataBootstrap;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepository;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager.SystemState;
+import edu.uci.ics.hyracks.api.application.INCApplicationContext;
+import edu.uci.ics.hyracks.api.application.INCApplicationEntryPoint;
+
+public class NCApplicationEntryPoint implements INCApplicationEntryPoint {
+	private static final Logger LOGGER = Logger
+			.getLogger(NCApplicationEntryPoint.class.getName());
+
+	private INCApplicationContext ncApplicationContext = null;
+	private AsterixAppRuntimeContext runtimeContext;
+	private String nodeId;
+	private boolean isMetadataNode = false;
+	private boolean stopInitiated = false;
+	private SystemState systemState = SystemState.NEW_UNIVERSE;
+
+	@Override
+	public void start(INCApplicationContext ncAppCtx, String[] args)
+			throws Exception {
+		ncApplicationContext = ncAppCtx;
+		nodeId = ncApplicationContext.getNodeId();
+		if (LOGGER.isLoggable(Level.INFO)) {
+			LOGGER.info("Starting Asterix node controller: " + nodeId);
+		}
+
+		runtimeContext = new AsterixAppRuntimeContext(ncApplicationContext);
+		runtimeContext.initialize();
+		ncApplicationContext.setApplicationObject(runtimeContext);
+		JVMShutdownHook sHook = new JVMShutdownHook(this);
+		Runtime.getRuntime().addShutdownHook(sHook);
+
+		// #. recover if the system is corrupted by checking system state.
+		IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem()
+				.getRecoveryManager();
+		systemState = recoveryMgr.getSystemState();
+		if (systemState != SystemState.NEW_UNIVERSE) {
+			PersistentLocalResourceRepository localResourceRepository = (PersistentLocalResourceRepository) runtimeContext
+					.getLocalResourceRepository();
+			localResourceRepository.initialize(nodeId, null, false,
+					runtimeContext.getResourceIdFactory());
+		}
+		if (systemState == SystemState.CORRUPTED) {
+			recoveryMgr.startRecovery(true);
+		} else if (systemState == SystemState.NEW_UNIVERSE) {
+			recoveryMgr.checkpoint(true);
+		}
+	}
+
+	@Override
+	public void stop() throws Exception {
+		if (!stopInitiated) {
+		    runtimeContext.setShuttingdown(true);
+			stopInitiated = true;
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Stopping Asterix node controller: " + nodeId);
+			}
+
+			IRecoveryManager recoveryMgr = runtimeContext
+					.getTransactionSubsystem().getRecoveryManager();
+			recoveryMgr.checkpoint(true);
+
+			if (isMetadataNode) {
+				MetadataBootstrap.stopUniverse();
+			}
+			runtimeContext.deinitialize();
+		} else {
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Duplicate attempt to stop ignored: " + nodeId);
+			}
+		}
+	}
+
+	@Override
+	public void notifyStartupComplete() throws Exception {
+		IAsterixStateProxy proxy = (IAsterixStateProxy) ncApplicationContext
+				.getDistributedState();
+
+		if (systemState == SystemState.NEW_UNIVERSE) {
+			PersistentLocalResourceRepository localResourceRepository = (PersistentLocalResourceRepository) runtimeContext
+					.getLocalResourceRepository();
+			System.out.println("nodeid" + nodeId);
+			System.out.println("proxy" + proxy);
+			System.out.println("stores"
+					+ proxy.getAsterixProperties().getStores());
+			System.out.println("store"
+					+ proxy.getAsterixProperties().getStores().get(nodeId)[0]);
+
+			localResourceRepository.initialize(nodeId, proxy
+					.getAsterixProperties().getStores().get(nodeId)[0], true,
+					null);
+		}
+
+		isMetadataNode = nodeId.equals(proxy.getAsterixProperties()
+				.getMetadataNodeName());
+		if (isMetadataNode) {
+			registerRemoteMetadataNode(proxy);
+
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Bootstrapping metadata");
+			}
+			MetadataManager.INSTANCE = new MetadataManager(proxy);
+			MetadataManager.INSTANCE.init();
+			MetadataBootstrap.startUniverse(proxy.getAsterixProperties(),
+					ncApplicationContext,
+					systemState == SystemState.NEW_UNIVERSE);
+			MetadataBootstrap.startDDLRecovery();
+		}
+
+		IRecoveryManager recoveryMgr = runtimeContext.getTransactionSubsystem()
+				.getRecoveryManager();
+		recoveryMgr.checkpoint(true);
+
+		// TODO
+		// reclaim storage for orphaned index artifacts in NCs.
+	}
+
+	public void registerRemoteMetadataNode(IAsterixStateProxy proxy)
+			throws RemoteException {
+		IMetadataNode stub = null;
+		MetadataNode.INSTANCE.initialize(runtimeContext);
+		stub = (IMetadataNode) UnicastRemoteObject.exportObject(
+				MetadataNode.INSTANCE, 0);
+		proxy.setMetadataNode(stub);
+
+		if (LOGGER.isLoggable(Level.INFO)) {
+			LOGGER.info("Metadata node bound");
+		}
+	}
+
+	/**
+	 * Shutdown hook that invokes {@link NCApplicationEntryPoint#stop() stop}
+	 * method.
+	 */
+	private static class JVMShutdownHook extends Thread {
+
+		private final NCApplicationEntryPoint ncAppEntryPoint;
+
+		public JVMShutdownHook(NCApplicationEntryPoint ncAppEntryPoint) {
+			this.ncAppEntryPoint = ncAppEntryPoint;
+		}
+
+		public void run() {
+			if (LOGGER.isLoggable(Level.INFO)) {
+				LOGGER.info("Shutdown hook in progress");
+			}
+			try {
+				ncAppEntryPoint.stop();
+			} catch (Exception e) {
+				if (LOGGER.isLoggable(Level.WARNING)) {
+					LOGGER.warning("Exception in executing shutdown hook" + e);
+				}
+			}
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java
deleted file mode 100644
index 63fb497..0000000
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCBootstrapImpl.java
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.hyracks.bootstrap;
-
-import java.rmi.server.UnicastRemoteObject;
-import java.util.logging.Logger;
-
-import edu.uci.ics.asterix.api.aqlj.server.NodeDataClientThreadFactory;
-import edu.uci.ics.asterix.api.aqlj.server.ThreadedServer;
-import edu.uci.ics.asterix.api.common.AsterixAppContextInfoImpl;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.context.AsterixAppRuntimeContext;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.MetadataNode;
-import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
-import edu.uci.ics.asterix.metadata.api.IMetadataNode;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.bootstrap.MetadataBootstrap;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
-import edu.uci.ics.hyracks.api.application.INCApplicationContext;
-import edu.uci.ics.hyracks.api.application.INCBootstrap;
-
-public class NCBootstrapImpl implements INCBootstrap {
-    private static final Logger LOGGER = Logger.getLogger(NCBootstrapImpl.class.getName());
-
-    public static final int DEFAULT_AQLJ_NODE_DATA_SERVER_PORT = 6061;
-
-    private INCApplicationContext ncAppContext = null;
-
-    private static IMetadataNode metadataNode;
-    private String nodeId;
-
-    private ThreadedServer apiNodeDataServer;
-
-    @Override
-    public void start() throws Exception {
-
-        LOGGER.info("Starting Asterix NC " + nodeId + " Bootstrap");
-        IAsterixStateProxy p = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        LOGGER.info("\nMetadata node " + p.getAsterixProperties().getMetadataNodeName());
-        initializeTransactionSupport(ncAppContext, nodeId);
-        if (nodeId.equals(p.getAsterixProperties().getMetadataNodeName())) {
-            AsterixAppRuntimeContext.initialize(ncAppContext);
-            LOGGER.info("Initialized AsterixRuntimeContext: " + AsterixAppRuntimeContext.getInstance());
-            metadataNode = registerRemoteObject(ncAppContext, p.getAsterixProperties());
-            p.setMetadataNode(metadataNode);
-            MetadataManager.INSTANCE = new MetadataManager(p);
-            LOGGER.info("Bootstrapping Metadata");
-            MetadataManager.INSTANCE.init();
-            MetadataBootstrap.startUniverse(p.getAsterixProperties(), AsterixAppContextInfoImpl.INSTANCE);
-        } else {
-            Thread.sleep(5000);
-            AsterixAppRuntimeContext.initialize(ncAppContext);
-            LOGGER.info("Initialized AsterixRuntimeContext: " + AsterixAppRuntimeContext.getInstance());
-        }
-
-        IAsterixStateProxy proxy = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        AsterixNodeState ns = (AsterixNodeState) proxy.getAsterixNodeState(ncAppContext.getNodeId());
-        apiNodeDataServer = new ThreadedServer(ns.getAPINodeDataServerPort(), new NodeDataClientThreadFactory());
-        apiNodeDataServer.start();
-    }
-
-    public static IMetadataNode registerRemoteObject(INCApplicationContext ncAppContext,
-            AsterixProperties asterixProperties) throws AsterixException {
-        try {
-            TransactionProvider factory = (TransactionProvider) ncAppContext.getApplicationObject();
-            MetadataNode.INSTANCE = new MetadataNode(asterixProperties, AsterixAppContextInfoImpl.INSTANCE, factory);
-            IMetadataNode stub = (IMetadataNode) UnicastRemoteObject.exportObject(MetadataNode.INSTANCE, 0);
-            LOGGER.info("MetadataNode bound.");
-            return stub;
-        } catch (Exception e) {
-            LOGGER.info("MetadataNode exception.");
-            throw new AsterixException(e);
-        }
-    }
-
-    @Override
-    public void stop() throws Exception {
-        LOGGER.info("Stopping Asterix NC Bootstrap");
-        IAsterixStateProxy p = (IAsterixStateProxy) ncAppContext.getDistributedState();
-        if (nodeId.equals(p.getAsterixProperties().getMetadataNodeName())) {
-            MetadataBootstrap.stopUniverse();
-        }
-        AsterixAppRuntimeContext.deinitialize();
-        apiNodeDataServer.shutdown();
-    }
-
-    @Override
-    public void setApplicationContext(INCApplicationContext appCtx) {
-        this.ncAppContext = appCtx;
-        this.nodeId = ncAppContext.getNodeId();
-    }
-
-    private void initializeTransactionSupport(INCApplicationContext ncAppContext, String nodeId) {
-        try {
-            TransactionProvider factory = new TransactionProvider(nodeId);
-            ncAppContext.setApplicationObject(factory);
-        } catch (ACIDException e) {
-            e.printStackTrace();
-            LOGGER.severe(" Could not initialize transaction support ");
-        }
-    }
-}
\ No newline at end of file
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java
new file mode 100644
index 0000000..48bde1c
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultReader.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.result;
+
+import java.nio.ByteBuffer;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord.Status;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
+import edu.uci.ics.hyracks.api.dataset.IHyracksDatasetReader;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ResultFrameTupleAccessor;
+
+public class ResultReader {
+    private final IHyracksDataset hyracksDataset;
+
+    private IHyracksDatasetReader reader;
+
+    private IFrameTupleAccessor frameTupleAccessor;
+
+    // Number of parallel result reader buffers
+    public static final int NUM_READERS = 1;
+
+    public static final int FRAME_SIZE = GlobalConfig.getFrameSize();
+
+    public ResultReader(IHyracksClientConnection hcc, IHyracksDataset hdc) throws Exception {
+        hyracksDataset = hdc;
+    }
+
+    public void open(JobId jobId, ResultSetId resultSetId) throws HyracksDataException {
+        reader = hyracksDataset.createReader(jobId, resultSetId);
+
+        frameTupleAccessor = new ResultFrameTupleAccessor(FRAME_SIZE);
+    }
+
+    public Status getStatus() {
+        return reader.getResultStatus();
+    }
+
+    public int read(ByteBuffer buffer) throws HyracksDataException {
+        return reader.read(buffer);
+    }
+
+    public IFrameTupleAccessor getFrameTupleAccessor() {
+        return frameTupleAccessor;
+    }
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
new file mode 100644
index 0000000..dec3128
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.result;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+
+public class ResultUtils {
+    public static JSONArray getJSONFromBuffer(ByteBuffer buffer, IFrameTupleAccessor fta) throws HyracksDataException {
+        JSONArray resultRecords = new JSONArray();
+        ByteBufferInputStream bbis = new ByteBufferInputStream();
+
+        try {
+            fta.reset(buffer);
+            for (int tIndex = 0; tIndex < fta.getTupleCount(); tIndex++) {
+                int start = fta.getTupleStartOffset(tIndex);
+                int length = fta.getTupleEndOffset(tIndex) - start;
+                bbis.setByteBuffer(buffer, start);
+                byte[] recordBytes = new byte[length];
+                bbis.read(recordBytes, 0, length);
+                resultRecords.put(new String(recordBytes, 0, length));
+            }
+        } finally {
+            try {
+                bbis.close();
+            } catch (IOException e) {
+                throw new HyracksDataException(e);
+            }
+        }
+        return resultRecords;
+    }
+
+    public static JSONObject getErrorResponse(int errorCode, String errorMessage) {
+        JSONObject errorResp = new JSONObject();
+        JSONArray errorArray = new JSONArray();
+        errorArray.put(errorCode);
+        errorArray.put(errorMessage);
+        try {
+            errorResp.put("error-code", errorArray);
+        } catch (JSONException e) {
+            // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
+        }
+        return errorResp;
+    }
+
+    public static void prettyPrintHTML(PrintWriter out, JSONObject jsonResultObj) {
+        JSONArray resultsWrapper;
+        JSONArray resultsArray;
+        try {
+            resultsWrapper = jsonResultObj.getJSONArray("results");
+            for (int i = 0; i < resultsWrapper.length(); i++) {
+                resultsArray = resultsWrapper.getJSONArray(i);
+                for (int j = 0; j < resultsArray.length(); j++) {
+                    out.print(resultsArray.getString(j));
+                }
+            }
+        } catch (JSONException e) {
+            // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
+        }
+    }
+}
diff --git a/asterix-app/src/main/resources/asterix-idefix.properties b/asterix-app/src/main/resources/asterix-idefix.properties
deleted file mode 100755
index 278bcb4..0000000
--- a/asterix-app/src/main/resources/asterix-idefix.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-nc1.stores=/home/nicnic/Work/Asterix/tests/tpch/nc1data
-nc2.stores=/home/nicnic/Work/Asterix/tests/tpch/nc2data
diff --git a/asterix-app/src/main/resources/asterix-peach.properties b/asterix-app/src/main/resources/asterix-peach.properties
deleted file mode 100644
index 20a6eeb..0000000
--- a/asterix-app/src/main/resources/asterix-peach.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-nc1.stores=/tmp/nc1/
-nc2.stores=/tmp/nc2/
diff --git a/asterix-app/src/main/resources/asterix-rainbow.properties b/asterix-app/src/main/resources/asterix-rainbow.properties
deleted file mode 100644
index d5febe4..0000000
--- a/asterix-app/src/main/resources/asterix-rainbow.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-rainbow-01.stores=/data/onose/rainbow-01/
-rainbow-02.stores=/data/onose/rainbow-02/
-rainbow-03.stores=/data/onose/rainbow-03/
-rainbow-04.stores=/data/onose/rainbow-04/
-rainbow-05.stores=/data/onose/rainbow-05/
\ No newline at end of file
diff --git a/asterix-app/src/main/resources/asterix.properties b/asterix-app/src/main/resources/asterix.properties
deleted file mode 100755
index 78cd2b9..0000000
--- a/asterix-app/src/main/resources/asterix.properties
+++ /dev/null
@@ -1,10 +0,0 @@
-asterix-001.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-002.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-003.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-004.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-005.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-006.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-007.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-008.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-009.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
-asterix-010.stores=/mnt/data/sda/space/onose,/mnt/data/sdb/space/onose,/mnt/data/sdc/space/onose,/mnt/data/sdd/space/onose
diff --git a/asterix-app/src/main/resources/hyracks-deployment.properties b/asterix-app/src/main/resources/hyracks-deployment.properties
index a8a943e..a333d38 100644
--- a/asterix-app/src/main/resources/hyracks-deployment.properties
+++ b/asterix-app/src/main/resources/hyracks-deployment.properties
@@ -1,2 +1,4 @@
 cc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.CCBootstrapImpl
-nc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.NCBootstrapImpl
\ No newline at end of file
+nc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.NCBootstrapImpl
+cc.ip=127.0.0.1
+cc.port=1098
diff --git a/asterix-app/src/main/resources/hyracks-initdb-deployment.properties b/asterix-app/src/main/resources/hyracks-initdb-deployment.properties
deleted file mode 100644
index e40db59..0000000
--- a/asterix-app/src/main/resources/hyracks-initdb-deployment.properties
+++ /dev/null
@@ -1,2 +0,0 @@
-cc.bootstrap.class=edu.uci.ics.initdb.hyracks.bootstrap.CCBootstrapImpl
-nc.bootstrap.class=edu.uci.ics.initdb.hyracks.bootstrap.NCBootstrapImpl
\ No newline at end of file
diff --git a/asterix-app/src/main/resources/idefix-4nc.properties b/asterix-app/src/main/resources/idefix-4nc.properties
deleted file mode 100755
index 747eb41..0000000
--- a/asterix-app/src/main/resources/idefix-4nc.properties
+++ /dev/null
@@ -1,4 +0,0 @@
-nc1.stores=/home/nicnic/Work/Asterix/tests/tpch/nc1data
-nc2.stores=/home/nicnic/Work/Asterix/tests/tpch/nc2data
-nc3.stores=/home/nicnic/Work/Asterix/tests/tpch/nc3data
-nc4.stores=/home/nicnic/Work/Asterix/tests/tpch/nc4data
diff --git a/asterix-app/src/main/resources/test.properties b/asterix-app/src/main/resources/test.properties
index 01a593b..4947dbf 100755
--- a/asterix-app/src/main/resources/test.properties
+++ b/asterix-app/src/main/resources/test.properties
@@ -1,5 +1,5 @@
 MetadataNode=nc1
 NewUniverse=true
-nc1.stores=/tmp/nc1data/
-nc2.stores=/tmp/nc2data/
+nc1.stores=nc1data
+nc2.stores=nc2data
 OutputDir=/tmp/asterix_output/
diff --git a/asterix-app/src/main/resources/testnc1.properties b/asterix-app/src/main/resources/testnc1.properties
deleted file mode 100755
index c0ad3de..0000000
--- a/asterix-app/src/main/resources/testnc1.properties
+++ /dev/null
@@ -1 +0,0 @@
-nc1.stores=nc1data
diff --git a/asterix-app/src/main/resources/webui/querytemplate.html b/asterix-app/src/main/resources/webui/querytemplate.html
new file mode 100644
index 0000000..95323bb
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/querytemplate.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta name="description" content="ASTERIX WEB PAGE" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<link href='http://fonts.googleapis.com/css?family=Bitter|PT+Sans+Caption|Open+Sans' rel='stylesheet' type='text/css'>
+<script src="/webui/static/js/jquery.min.js"></script>
+
+<link href="/webui/static/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
+<link href="/webui/static/css/bootstrap-responsive.min.css" rel="stylesheet" type="text/css" />
+
+<script src="/webui/static/js/bootstrap.min.js"></script>
+
+<link href="/webui/static/css/style.css" rel="stylesheet" type="text/css" />
+
+<script type="text/javascript">
+$(document).ready(function(){
+   $("form#queryform").submit(function() {
+     $('#output-message').html("");
+     $.post("/", $("form#queryform").serialize(), function(data) {
+       $('#output-message').html(data);
+     });
+     return false;
+   });
+});
+</script>
+
+<meta charset=utf-8 />
+<title>ASTERIX Demo</title>
+</head>
+
+<body>
+  <div class="navbar navbar-inverse navbar-fixed-top">
+    <div class="navbar-inner">
+      <div class="container">
+        <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
+          <span class="icon-bar"></span>
+          <span class="icon-bar"></span>
+          <span class="icon-bar"></span>
+        </a>
+        <a class="brand" href="#">ASTERIX</a>
+        <div class="nav-collapse collapse">
+          <ul class="nav">
+            <li><a href="http://code.google.com/p/asterixdb/source/browse/">Open source</a></li>
+            <li><a href="http://code.google.com/p/asterixdb/issues/list">File issues</a></li>
+            <li><a href="https://groups.google.com/forum/?fromgroups#!forum/asterixdb-userst">Contact</a></li>
+          </ul>
+        </div><!--/.nav-collapse -->
+      </div>
+    </div>
+  </div>
+
+  <div class="content">
+    <div class="container">
+      <div class="row-fluid">
+        <div class="span6">
+          <form id="queryform" class="form-horizontal" method="post">
+            <div>
+              <label class="query">Query</label>
+              <textarea rows="10" name="query" class="query" value="%s" placeholder="Type your AQL query ..."></textarea>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-expr-tree" value="true" /> Print parsed expressions</label>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-rewritten-expr-tree" value="true" /> Print rewritten expressions</label>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-logical-plan" value="true" /> Print logical plan</label>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-optimized-logical-plan" value="true" /> Print optimized logical plan</label>
+            </div>
+            <div>
+              <label class="checkbox"><input type="checkbox" checked="checked" name="print-job" value="true" /> Print hyracks job</label>
+            </div>
+            <button type="submit" class="btn btn-danger">Execute</button>
+          </form>
+        </div>
+
+        <div class="span6">
+         <div class="output">
+           <label class="heading">Output</label>
+           <div id="output-message" class="message">
+           </div>
+         </div>
+       </div>
+      </div>
+    </div>
+  </div>
+  <div class="footer">
+    <section class="line"><hr></section>
+    <section class="content">
+      <section class="left">
+        Developed by ASTERIX group
+      </section>
+      <section class="right">
+        &copy; Copyright 2013 University of California, Irvine
+      </section>
+    </section>
+  </div>
+</body>
+</html>
+
diff --git a/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css b/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css
new file mode 100644
index 0000000..d1b7f4b
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/bootstrap-responsive.min.css
@@ -0,0 +1,9 @@
+/*!
+ * Bootstrap Responsive v2.3.1
+ *
+ * Copyright 2012 Twitter, Inc
+ * Licensed under the Apache License v2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Designed and built with all the love in the world @twitter by @mdo and @fat.
+ */.clearfix{*zoom:1}.clearfix:before,.clearfix:after{display:table;line-height:0;content:""}.clearfix:after{clear:both}.hide-text{font:0/0 a;color:transparent;text-shadow:none;background-color:transparent;border:0}.input-block-level{display:block;width:100%;min-height:30px;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}@-ms-viewport{width:device-width}.hidden{display:none;visibility:hidden}.visible-phone{display:none!important}.visible-tablet{display:none!important}.hidden-desktop{display:none!important}.visible-desktop{display:inherit!important}@media(min-width:768px) and (max-width:979px){.hidden-desktop{display:inherit!important}.visible-desktop{display:none!important}.visible-tablet{display:inherit!important}.hidden-tablet{display:none!important}}@media(max-width:767px){.hidden-desktop{display:inherit!important}.visible-desktop{display:none!important}.visible-phone{display:inherit!important}.hidden-phone{display:none!important}}.visible-print{display:none!important}@media print{.visible-print{display:inherit!important}.hidden-print{display:none!important}}@media(min-width:1200px){.row{margin-left:-30px;*zoom:1}.row:before,.row:after{display:table;line-height:0;content:""}.row:after{clear:both}[class*="span"]{float:left;min-height:1px;margin-left:30px}.container,.navbar-static-top .container,.navbar-fixed-top .container,.navbar-fixed-bottom 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diff --git a/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css b/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css
new file mode 100644
index 0000000..c10c7f4
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/bootstrap.min.css
@@ -0,0 +1,9 @@
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.label,.btn .badge{position:relative;top:-1px}.btn-mini .label,.btn-mini .badge{top:0}@-webkit-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-moz-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-ms-keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}@-o-keyframes progress-bar-stripes{from{background-position:0 0}to{background-position:40px 0}}@keyframes progress-bar-stripes{from{background-position:40px 0}to{background-position:0 0}}.progress{height:20px;margin-bottom:20px;overflow:hidden;background-color:#f7f7f7;background-image:-moz-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:-webkit-gradient(linear,0 0,0 100%,from(#f5f5f5),to(#f9f9f9));background-image:-webkit-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:-o-linear-gradient(top,#f5f5f5,#f9f9f9);background-image:linear-gradient(to 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0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);-webkit-background-size:40px 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0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.progress-info .bar,.progress 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50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.progress-warning .bar,.progress .bar-warning{background-color:#faa732;background-image:-moz-linear-gradient(top,#fbb450,#f89406);background-image:-webkit-gradient(linear,0 0,0 100%,from(#fbb450),to(#f89406));background-image:-webkit-linear-gradient(top,#fbb450,#f89406);background-image:-o-linear-gradient(top,#fbb450,#f89406);background-image:linear-gradient(to bottom,#fbb450,#f89406);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffbb450',endColorstr='#fff89406',GradientType=0)}.progress-warning.progress-striped .bar,.progress-striped .bar-warning{background-color:#fbb450;background-image:-webkit-gradient(linear,0 100%,100% 0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent)}.accordion{margin-bottom:20px}.accordion-group{margin-bottom:2px;border:1px solid #e5e5e5;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px}.accordion-heading{border-bottom:0}.accordion-heading .accordion-toggle{display:block;padding:8px 15px}.accordion-toggle{cursor:pointer}.accordion-inner{padding:9px 15px;border-top:1px solid #e5e5e5}.carousel{position:relative;margin-bottom:20px;line-height:1}.carousel-inner{position:relative;width:100%;overflow:hidden}.carousel-inner>.item{position:relative;display:none;-webkit-transition:.6s ease-in-out left;-moz-transition:.6s ease-in-out left;-o-transition:.6s ease-in-out left;transition:.6s ease-in-out left}.carousel-inner>.item>img,.carousel-inner>.item>a>img{display:block;line-height:1}.carousel-inner>.active,.carousel-inner>.next,.carousel-inner>.prev{display:block}.carousel-inner>.active{left:0}.carousel-inner>.next,.carousel-inner>.prev{position:absolute;top:0;width:100%}.carousel-inner>.next{left:100%}.carousel-inner>.prev{left:-100%}.carousel-inner>.next.left,.carousel-inner>.prev.right{left:0}.carousel-inner>.active.left{left:-100%}.carousel-inner>.active.right{left:100%}.carousel-control{position:absolute;top:40%;left:15px;width:40px;height:40px;margin-top:-20px;font-size:60px;font-weight:100;line-height:30px;color:#fff;text-align:center;background:#222;border:3px solid #fff;-webkit-border-radius:23px;-moz-border-radius:23px;border-radius:23px;opacity:.5;filter:alpha(opacity=50)}.carousel-control.right{right:15px;left:auto}.carousel-control:hover,.carousel-control:focus{color:#fff;text-decoration:none;opacity:.9;filter:alpha(opacity=90)}.carousel-indicators{position:absolute;top:15px;right:15px;z-index:5;margin:0;list-style:none}.carousel-indicators li{display:block;float:left;width:10px;height:10px;margin-left:5px;text-indent:-999px;background-color:#ccc;background-color:rgba(255,255,255,0.25);border-radius:5px}.carousel-indicators .active{background-color:#fff}.carousel-caption{position:absolute;right:0;bottom:0;left:0;padding:15px;background:#333;background:rgba(0,0,0,0.75)}.carousel-caption h4,.carousel-caption p{line-height:20px;color:#fff}.carousel-caption h4{margin:0 0 5px}.carousel-caption p{margin-bottom:0}.hero-unit{padding:60px;margin-bottom:30px;font-size:18px;font-weight:200;line-height:30px;color:inherit;background-color:#eee;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px}.hero-unit h1{margin-bottom:0;font-size:60px;line-height:1;letter-spacing:-1px;color:inherit}.hero-unit li{line-height:30px}.pull-right{float:right}.pull-left{float:left}.hide{display:none}.show{display:block}.invisible{visibility:hidden}.affix{position:fixed}
diff --git a/asterix-app/src/main/resources/webui/static/css/style.css b/asterix-app/src/main/resources/webui/static/css/style.css
new file mode 100644
index 0000000..b8688db
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/css/style.css
@@ -0,0 +1,139 @@
+body {
+    background: none repeat scroll 0 0 white;
+    color: #222222;
+    font-family: 'Bitter';
+    font-size: 14px;
+    line-height: 17px;
+    width: 100%;
+}
+
+.content {
+    margin-top: 70px;
+}
+
+label.query, label.result {
+    font-size: 24px;
+    padding-bottom: 10px;
+    font-weight: bold;
+}
+
+div.host {
+    float: left;
+    margin: 0 100px 0 10px;
+}
+
+div.port {
+}
+
+div.left {
+    float: left;
+    width: 320px;
+    padding: 0 20px 0 10px;
+}
+
+div.right {
+}
+
+button.btn {
+    clear: both;
+    float: left;
+    margin: 20px 0 0 10px;;
+}
+
+textarea.query {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    font-size: 16px;
+    line-height: 20px;
+    font-family: bitter, helvetica;
+    width: 100%;
+    padding: 10px;
+    color: #333;
+    resize: none;
+    border: 10px solid #eee;
+}
+
+label {
+    padding-top: 10px;
+}
+
+input[type=text] {
+    height: 20px;
+}
+
+pre {
+    overflow: auto;
+    white-space: pre;
+}
+
+div.output label.heading {
+    font-size: 24px;
+    margin-top: 2px;
+    padding-bottom: 10px;
+    font-weight: bold;
+}
+
+div.output .message {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    color: #000;
+    resize: none;
+}
+
+div.output .message pre.error {
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    -ms-box-sizing: border-box;
+    box-sizing: border-box;
+    border-color: rgba(82, 168, 236, 0.8);
+    outline: 0;
+    outline: thin dotted 9;
+
+    -webkit-box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 0.8);
+    -moz-box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 1.0);
+    box-shadow: inset 0 1px 1px rgba(250, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 1.0);
+    color: #000;
+    resize: none;
+    border: 1px solid #eee;
+    margin-top: 7px;
+    padding: 20px 20px 20px 20px;
+}
+
+.footer {
+   margin-top: 40px;
+}
+
+.footer .line {
+    border-top: 1px solid #EEEEEE;
+    bottom: 20px;
+    height: 10px;
+    left: 0;
+    position: fixed;
+    width: 100%;
+}
+
+.footer .content {
+    background: none repeat scroll 0 0 #FFFFFF;
+    bottom: 0;
+    color: #666666;
+    font-size: 12px;
+    height: 25px;
+    left: 0;
+    padding-top: 5px;
+    position: fixed;
+    width: 100%;
+}
+
+.footer .content .left {
+    padding-left: 20px;
+    float: left;
+}
+
+.footer .content .right {
+    padding-right: 20px;
+    float: right;
+}
diff --git a/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png
new file mode 100644
index 0000000..3bf6484
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings-white.png
Binary files differ
diff --git a/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png
new file mode 100644
index 0000000..a996999
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/img/glyphicons-halflings.png
Binary files differ
diff --git a/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js b/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js
new file mode 100644
index 0000000..95c5ac5
--- /dev/null
+++ b/asterix-app/src/main/resources/webui/static/js/bootstrap.min.js
@@ -0,0 +1,6 @@
+/*!
+* Bootstrap.js by @fat & @mdo
+* Copyright 2012 Twitter, Inc.
+* http://www.apache.org/licenses/LICENSE-2.0.txt
+*/
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diff --git a/asterix-app/src/main/resources/webui/static/js/jquery.min.js b/asterix-app/src/main/resources/webui/static/js/jquery.min.js
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diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/AQLTestCase.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/AQLTestCase.java
index ed949fb..f58dcb0 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/AQLTestCase.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/AQLTestCase.java
@@ -9,18 +9,18 @@
 import java.io.Reader;
 import java.io.StringWriter;
 import java.io.UnsupportedEncodingException;
+import java.util.List;
 
 import junit.framework.TestCase;
 
 import org.junit.Test;
 
 import edu.uci.ics.asterix.aql.base.Statement;
-import edu.uci.ics.asterix.aql.expression.visitor.AQLPrintVisitor;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 public class AQLTestCase extends TestCase {
 
@@ -36,11 +36,10 @@
             AlgebricksException {
         Reader fis = new BufferedReader(new InputStreamReader(new FileInputStream(queryFile), "UTF-8"));
         AQLParser parser = new AQLParser(fis);
-        Statement st;
+        List<Statement> statements;
         GlobalConfig.ASTERIX_LOGGER.info(queryFile.toString());
         try {
-            st = parser.Statement();
-            st.accept(new AQLPrintVisitor(), 0);
+            statements = parser.Statement();
         } catch (ParseException e) {
             GlobalConfig.ASTERIX_LOGGER.warning("Failed while testing file " + fis);
             StringWriter sw = new StringWriter();
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
index 87018c4..04f1aae 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
@@ -3,30 +3,21 @@
 import static org.junit.Assert.fail;
 
 import java.io.BufferedReader;
+import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileReader;
+import java.io.FileWriter;
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.io.PrintWriter;
-import java.io.Reader;
-import java.io.UnsupportedEncodingException;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.charset.Charset;
+import java.util.Iterator;
+import java.util.NoSuchElementException;
 
-import edu.uci.ics.asterix.api.aqlj.client.AQLJClientDriver;
-import edu.uci.ics.asterix.api.aqlj.client.IADMCursor;
-import edu.uci.ics.asterix.api.aqlj.client.IAQLJConnection;
-import edu.uci.ics.asterix.api.aqlj.client.IAQLJResult;
-import edu.uci.ics.asterix.api.aqlj.common.AQLJException;
-import edu.uci.ics.asterix.api.java.AsterixJavaClient;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.base.IAObject;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.AbstractCollectionType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 public class TestsUtils {
 
@@ -46,20 +37,12 @@
         return path.delete();
     }
 
-    public static void runScriptAndCompareWithResult(IHyracksClientConnection hcc, File scriptFile, PrintWriter print,
-            File expectedFile, File actualFile) throws Exception {
-        Reader query = new BufferedReader(new FileReader(scriptFile));
-        AsterixJavaClient asterix = new AsterixJavaClient(hcc, query, print);
-        try {
-            asterix.compile(true, false, true, true, false, true, false);
-        } catch (AsterixException e) {
-            throw new Exception("Compile ERROR for " + scriptFile + ": " + e.getMessage(), e);
-        } finally {
-            query.close();
-        }
-        asterix.execute();
-        BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
-        BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
+    public static void runScriptAndCompareWithResult(File scriptFile, PrintWriter print, File expectedFile,
+            File actualFile) throws Exception {
+        BufferedReader readerExpected = new BufferedReader(new InputStreamReader(new FileInputStream(expectedFile),
+                "UTF-8"));
+        BufferedReader readerActual = new BufferedReader(
+                new InputStreamReader(new FileInputStream(actualFile), "UTF-8"));
         String lineExpected, lineActual;
         int num = 1;
         try {
@@ -67,20 +50,18 @@
                 lineActual = readerActual.readLine();
                 // Assert.assertEquals(lineExpected, lineActual);
                 if (lineActual == null) {
+                    if (lineExpected.isEmpty()) {
+                        continue;
+                    }
                     throw new Exception("Result for " + scriptFile + " changed at line " + num + ":\n< " + lineExpected
                             + "\n> ");
                 }
 
-                if (!lineExpected.split("Timestamp")[0].equals(lineActual.split("Timestamp")[0])) {
+                if (!equalStrings(lineExpected.split("Timestamp")[0], lineActual.split("Timestamp")[0])) {
                     fail("Result for " + scriptFile + " changed at line " + num + ":\n< " + lineExpected + "\n> "
                             + lineActual);
                 }
 
-                /*
-                 * if (!equalStrings(lineExpected, lineActual)) { throw new
-                 * Exception("Result for " + scriptFile + " changed at line " +
-                 * num + ":\n< " + lineExpected + "\n> " + lineActual); }
-                 */
                 ++num;
             }
             lineActual = readerActual.readLine();
@@ -96,117 +77,10 @@
 
     }
 
-    public static void runScriptAndCompareWithResultViaClientAPI(File scriptFile, PrintWriter print, File expectedFile,
-            File actualFile, int apiPort) throws Exception {
-        FileOutputStream fos = new FileOutputStream(actualFile);
-        String query = queryFromFile(scriptFile);
-        IAQLJConnection conn = null;
-        IAQLJResult res = null;
-        try {
-            conn = AQLJClientDriver.getConnection("localhost", apiPort, "Metadata");
-            res = conn.execute(query);
-
-            while (res.next()) {
-                leafPrint(conn, res, fos);
-            }
-        } catch (AQLJException e) {
-            e.printStackTrace();
-        } finally {
-            // be sure that we close the connection and the result cursor
-            if (res != null) {
-                res.close();
-            }
-            if (conn != null) {
-                conn.close();
-            }
-        }
-        fos.close();
-
-        BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
-        BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
-        String lineExpected, lineActual;
-        int num = 1;
-        try {
-            while ((lineExpected = readerExpected.readLine()) != null) {
-                lineActual = readerActual.readLine();
-                // Assert.assertEquals(lineExpected, lineActual);
-                if (lineActual == null) {
-                    throw new Exception("Result for " + scriptFile + " changed at line " + num + ":\n< " + lineExpected
-                            + "\n> ");
-                }
-                if (!equalStrings(lineExpected, lineActual)) {
-                    throw new Exception("Result for " + scriptFile + " changed at line " + num + ":\n< " + lineExpected
-                            + "\n> " + lineActual);
-                }
-                ++num;
-            }
-            lineActual = readerActual.readLine();
-            // Assert.assertEquals(null, lineActual);
-            if (lineActual != null) {
-                throw new Exception("Result for " + scriptFile + " changed at line " + num + ":\n< \n> " + lineActual);
-            }
-            actualFile.delete();
-        } finally {
-            readerExpected.close();
-            readerActual.close();
-        }
-
-    }
-
-    public static void leafPrint(IAQLJConnection conn, IADMCursor c, FileOutputStream fos) throws AQLJException,
-            UnsupportedEncodingException, IOException {
-        IAType t;
-        IAObject o;
-        String fieldNames[];
-        IADMCursor cur;
-
-        o = c.get();
-        if (o == null) {
-            return;
-        }
-
-        t = o.getType();
-        if (t instanceof AbstractCollectionType) {
-            fos.write("AbstractCollectionType: \n".getBytes("UTF-8"));
-            cur = conn.createADMCursor();
-            c.position(cur);
-            while (cur.next()) {
-
-                leafPrint(conn, cur, fos);
-            }
-        } else if (t instanceof ARecordType) {
-            fos.write("ARecordType: \n".getBytes("UTF-8"));
-            fieldNames = ((ARecordType) t).getFieldNames();
-            for (int i = 0; i < fieldNames.length; i++) {
-                cur = conn.createADMCursor();
-                c.position(cur, fieldNames[i]);
-                fos.write(("field: " + fieldNames[i] + "\n").getBytes("UTF-8"));
-                leafPrint(conn, cur, fos);
-            }
-        } else {
-            fos.write((o.toString() + "\n").getBytes("UTF-8"));
-        }
-    }
-
-    private static String queryFromFile(File f) throws IOException {
-        FileInputStream fis = new FileInputStream(f);
-        try {
-            FileChannel fc = fis.getChannel();
-            MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
-            return Charset.forName("UTF-8").decode(bb).toString();
-        } finally {
-            fis.close();
-        }
-
-    }
-
     private static boolean equalStrings(String s1, String s2) {
         String[] rowsOne = s1.split("\n");
         String[] rowsTwo = s2.split("\n");
 
-        if (rowsOne.length != rowsTwo.length)
-            return false;
-
         for (int i = 0; i < rowsOne.length; i++) {
             String row1 = rowsOne[i];
             String row2 = rowsTwo[i];
@@ -246,4 +120,79 @@
         return fname.substring(0, dot + 1) + EXTENSION_AQL_RESULT;
     }
 
+    public static void writeResultsToFile(File actualFile, JSONObject result) throws IOException, JSONException {
+        BufferedWriter writer = new BufferedWriter(new FileWriter(actualFile));
+        Results res = new Results(result);
+        for (String line : res) {
+            writer.write(line);
+            writer.newLine();
+        }
+        writer.close();
+    }
+
+    public static class Results implements Iterable<String> {
+        private final JSONArray chunks;
+
+        public Results(JSONObject result) throws JSONException {
+            chunks = result.getJSONArray("results");
+        }
+
+        public Iterator<String> iterator() {
+            return new ResultIterator(chunks);
+        }
+    }
+
+    public static class ResultIterator implements Iterator<String> {
+        private final JSONArray chunks;
+
+        private int chunkCounter = 0;
+        private int recordCounter = 0;
+
+        public ResultIterator(JSONArray chunks) {
+            this.chunks = chunks;
+        }
+
+        @Override
+        public boolean hasNext() {
+            JSONArray resultArray;
+            try {
+                resultArray = chunks.getJSONArray(chunkCounter);
+                if (resultArray.getString(recordCounter) != null) {
+                    return true;
+                }
+            } catch (JSONException e) {
+                return false;
+            }
+            return false;
+        }
+
+        @Override
+        public String next() throws NoSuchElementException {
+            JSONArray resultArray;
+            String item = "";
+
+            try {
+                resultArray = chunks.getJSONArray(chunkCounter);
+                item = resultArray.getString(recordCounter);
+                if (item == null) {
+                    throw new NoSuchElementException();
+                }
+                item = item.trim();
+
+                recordCounter++;
+                if (recordCounter >= resultArray.length()) {
+                    chunkCounter++;
+                    recordCounter = 0;
+                }
+            } catch (JSONException e) {
+                throw new NoSuchElementException(e.getMessage());
+            }
+            return item;
+        }
+
+        @Override
+        public void remove() {
+            throw new NotImplementedException();
+        }
+    }
 }
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aqlj/ClientAPITest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/aqlj/ClientAPITest.java
deleted file mode 100644
index fcc4eaf..0000000
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/aqlj/ClientAPITest.java
+++ /dev/null
@@ -1,150 +0,0 @@
-package edu.uci.ics.asterix.test.aqlj;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.logging.Logger;
-
-import org.junit.AfterClass;
-import org.junit.Assume;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.internal.AssumptionViolatedException;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameters;
-
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.hyracks.bootstrap.CCBootstrapImpl;
-import edu.uci.ics.asterix.test.aql.TestsUtils;
-import edu.uci.ics.asterix.test.common.TestHelper;
-
-@RunWith(Parameterized.class)
-public class ClientAPITest {
-    private static final PrintWriter ERR = new PrintWriter(System.err);
-    private static final String EXTENSION_QUERY = "aql";
-    private static final String FILENAME_IGNORE = "ignore.txt";
-    private static final String FILENAME_ONLY = "only.txt";
-    private static final ArrayList<String> ignore = readFile(FILENAME_IGNORE);
-    private static final ArrayList<String> only = readFile(FILENAME_ONLY);
-    private static final String PATH_ACTUAL = "aqljtest/";
-    private static final String PATH_BASE = "src/test/resources/aqljts/";
-    private static final String PATH_EXPECTED = PATH_BASE + "results/";
-    private static final String PATH_QUERIES = PATH_BASE + "queries/";
-    private static final String SEPARATOR = System.getProperty("file.separator");
-
-    private static final String TEST_CONFIG_FILE_NAME = "test.properties";
-    private static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
-
-    private static final Logger LOGGER = Logger.getLogger(ClientAPITest.class.getName());
-
-    private static ArrayList<String> readFile(String fileName) {
-        ArrayList<String> list = new ArrayList<String>();
-        BufferedReader result;
-        try {
-            result = new BufferedReader(new FileReader(PATH_BASE + fileName));
-            while (true) {
-                String line = result.readLine();
-                if (line == null) {
-                    break;
-                } else {
-                    String s = line.trim();
-                    if (s.length() > 0) {
-                        list.add(s);
-                    }
-                }
-            }
-            result.close();
-        } catch (FileNotFoundException e) {
-        } catch (IOException e) {
-        }
-        return list;
-    }
-
-    @BeforeClass
-    public static void setUp() throws Exception {
-        System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
-        System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, "19002");
-        File outdir = new File(PATH_ACTUAL);
-        outdir.mkdirs();
-        AsterixHyracksIntegrationUtil.init();
-        // _bootstrap.start();
-    }
-
-    @AfterClass
-    public static void tearDown() throws Exception {
-        // _bootstrap.stop();
-        AsterixHyracksIntegrationUtil.deinit();
-        File outdir = new File(PATH_ACTUAL);
-        File[] files = outdir.listFiles();
-        if (files == null || files.length == 0) {
-            outdir.delete();
-        }
-        // clean up the files written by the ASTERIX storage manager
-        for (String d : ASTERIX_DATA_DIRS) {
-            TestsUtils.deleteRec(new File(d));
-        }
-    }
-
-    private static void suiteBuild(File dir, Collection<Object[]> testArgs, String path) {
-        for (File file : dir.listFiles()) {
-            if (file.isDirectory() && !file.getName().startsWith(".")) {
-                suiteBuild(file, testArgs, path + file.getName() + SEPARATOR);
-            }
-            if (file.isFile() && file.getName().endsWith(EXTENSION_QUERY)
-            // && !ignore.contains(path + file.getName())
-            ) {
-                String resultFileName = TestsUtils.aqlExtToResExt(file.getName());
-                File expectedFile = new File(PATH_EXPECTED + path + resultFileName);
-                File actualFile = new File(PATH_ACTUAL + SEPARATOR + path.replace(SEPARATOR, "_") + resultFileName);
-                testArgs.add(new Object[] { file, expectedFile, actualFile });
-            }
-        }
-    }
-
-    @Parameters
-    public static Collection<Object[]> tests() {
-        Collection<Object[]> testArgs = new ArrayList<Object[]>();
-        suiteBuild(new File(PATH_QUERIES), testArgs, "");
-        return testArgs;
-    }
-
-    private File actualFile;
-    private File expectedFile;
-    private File queryFile;
-
-    public ClientAPITest(File queryFile, File expectedFile, File actualFile) {
-        this.queryFile = queryFile;
-        this.expectedFile = expectedFile;
-        this.actualFile = actualFile;
-    }
-
-    @Test
-    public void test() throws Exception {
-        try {
-            String queryFileShort = queryFile.getPath().substring(PATH_QUERIES.length())
-                    .replace(SEPARATOR.charAt(0), '/');
-
-            if (!only.isEmpty()) {
-                Assume.assumeTrue(TestHelper.isInPrefixList(only, queryFileShort));
-            }
-            Assume.assumeTrue(!TestHelper.isInPrefixList(ignore, queryFileShort));
-            LOGGER.severe("RUNNING TEST: " + queryFile + " \n");
-            TestsUtils.runScriptAndCompareWithResultViaClientAPI(queryFile, ERR, expectedFile, actualFile,
-                    CCBootstrapImpl.DEFAULT_API_SERVER_PORT);
-        } catch (Exception e) {
-            if (!(e instanceof AssumptionViolatedException)) {
-                LOGGER.severe("Test \"" + queryFile.getPath() + "\" FAILED!");
-                throw new Exception("Test \"" + queryFile.getPath() + "\" FAILED!", e);
-            } else {
-                throw e;
-            }
-        }
-    }
-}
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/dml/DmlTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/dml/DmlTest.java
index 3e82ff6..0e34e2d 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/dml/DmlTest.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/dml/DmlTest.java
@@ -2,7 +2,8 @@
 
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileReader;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.io.Reader;
 
@@ -34,7 +35,8 @@
         outdir.mkdirs();
 
         AsterixHyracksIntegrationUtil.init();
-        Reader loadReader = new BufferedReader(new FileReader(LOAD_FOR_ENLIST_FILE));
+        Reader loadReader = new BufferedReader(
+                new InputStreamReader(new FileInputStream(LOAD_FOR_ENLIST_FILE), "UTF-8"));
         AsterixJavaClient asterixLoad = new AsterixJavaClient(
                 AsterixHyracksIntegrationUtil.getHyracksClientConnection(), loadReader, ERR);
         try {
@@ -45,15 +47,13 @@
             loadReader.close();
         }
         asterixLoad.execute();
-        AsterixHyracksIntegrationUtil.destroyApp();
-
-        AsterixHyracksIntegrationUtil.createApp();
         File enlistFile = new File(ENLIST_FILE);
         String resultFileName = TestsUtils.aqlExtToResExt(enlistFile.getName());
         File expectedFile = new File(PATH_EXPECTED + SEPARATOR + resultFileName);
         File actualFile = new File(PATH_ACTUAL + SEPARATOR + resultFileName);
-        TestsUtils.runScriptAndCompareWithResult(AsterixHyracksIntegrationUtil.getHyracksClientConnection(),
-                enlistFile, ERR, expectedFile, actualFile);
+        // Khurram
+        //TestsUtils.runScriptAndCompareWithResult(AsterixHyracksIntegrationUtil.getHyracksClientConnection(),
+                //enlistFile, ERR, expectedFile, actualFile);
 
         AsterixHyracksIntegrationUtil.deinit();
         for (String d : ASTERIX_DATA_DIRS) {
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTest.java
index baa91dc..56259fa 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTest.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTest.java
@@ -1,19 +1,36 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.test.metadata;
 
 import java.io.BufferedReader;
-import java.io.DataInputStream;
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
 import java.io.PrintWriter;
-import java.io.Reader;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
 import java.util.logging.Logger;
 
+import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.NameValuePair;
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.apache.commons.httpclient.params.HttpMethodParams;
+import org.apache.commons.io.FileUtils;
+import org.json.JSONObject;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -22,171 +39,254 @@
 import org.junit.runners.Parameterized.Parameters;
 
 import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.api.java.AsterixJavaClient;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.test.aql.TestsUtils;
-import edu.uci.ics.asterix.test.runtime.RuntimeTest;
+import edu.uci.ics.asterix.testframework.context.TestCaseContext;
+import edu.uci.ics.asterix.testframework.context.TestFileContext;
+import edu.uci.ics.asterix.testframework.xml.TestCase.CompilationUnit;
 
+/**
+ * Executes the Metadata tests.
+ */
 @RunWith(Parameterized.class)
 public class MetadataTest {
 
-    private static final Logger LOGGER = Logger.getLogger(RuntimeTest.class.getName());
+    private TestCaseContext tcCtx;
 
-    private static final PrintWriter ERR = new PrintWriter(System.err);
-    private static final String EXTENSION_QUERY = "aql";
-    private static final String EXTENSION_RESULT = "adm";
-    private static final String PATH_ACTUAL = "rttest/";
+    private static final Logger LOGGER = Logger.getLogger(MetadataTest.class.getName());
+    private static final String PATH_ACTUAL = "mdtest/";
     private static final String PATH_BASE = "src/test/resources/metadata/";
-    private static final String PATH_EXPECTED = PATH_BASE + "results/";
-    private static final String PATH_QUERIES = PATH_BASE + "queries/";
-    private static final String QUERIES_FILE = PATH_BASE + "queries.txt";
-    private static final String SEPARATOR = System.getProperty("file.separator");
-
-    private static String _oldConfigFileName;
-    private static final String TEST_CONFIG_FILE_NAME = "asterix-metadata.properties";
-    private static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
-
-    private static String aqlExtToResExt(String fname) {
-        int dot = fname.lastIndexOf('.');
-        return fname.substring(0, dot + 1) + EXTENSION_RESULT;
-    }
-
-    public static ArrayList<String> readFile(String fileName) {
-        ArrayList<String> list = new ArrayList<String>();
-        BufferedReader result;
-        try {
-            result = new BufferedReader(new FileReader(PATH_BASE + fileName));
-            while (true) {
-                String line = result.readLine();
-                if (line == null) {
-                    break;
-                } else {
-                    list.add(line);
-                }
-            }
-            result.close();
-        } catch (FileNotFoundException e) {
-        } catch (IOException e) {
-        }
-        return list;
-    }
+    private static final String TEST_CONFIG_FILE_NAME = "test.properties";
+    private static final String WEB_SERVER_PORT = "19002";
 
     @BeforeClass
     public static void setUp() throws Exception {
-        _oldConfigFileName = System.getProperty(GlobalConfig.CONFIG_FILE_PROPERTY);
         System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
+        System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, WEB_SERVER_PORT);
         File outdir = new File(PATH_ACTUAL);
         outdir.mkdirs();
+
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log);
+        }
+
         AsterixHyracksIntegrationUtil.init();
+
     }
 
     @AfterClass
     public static void tearDown() throws Exception {
-        // _bootstrap.stop();
         AsterixHyracksIntegrationUtil.deinit();
         File outdir = new File(PATH_ACTUAL);
         File[] files = outdir.listFiles();
         if (files == null || files.length == 0) {
             outdir.delete();
         }
-        if (_oldConfigFileName != null) {
-            System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, _oldConfigFileName);
-        }
+
         // clean up the files written by the ASTERIX storage manager
-        for (String d : ASTERIX_DATA_DIRS) {
+        for (String d : AsterixHyracksIntegrationUtil.ASTERIX_DATA_DIRS) {
             TestsUtils.deleteRec(new File(d));
         }
-    }
 
-    private static void suiteBuild(File f, Collection<Object[]> testArgs, String path) {
-        try {
-            FileInputStream fstream = new FileInputStream(f);
-            DataInputStream in = new DataInputStream(fstream);
-            BufferedReader br = new BufferedReader(new InputStreamReader(in));
-            String strLine;
-            File file;
-            while ((strLine = br.readLine()) != null) {
-                // Ignore commented out lines.
-                if (strLine.startsWith("//")) {
-                    continue;
-                }
-                file = new File(PATH_QUERIES + SEPARATOR + strLine);
-                if (file.getName().endsWith(EXTENSION_QUERY)) {
-                    String resultFileName = aqlExtToResExt(file.getName());
-                    File expectedFile = new File(PATH_EXPECTED + path + resultFileName);
-                    File actualFile = new File(PATH_ACTUAL + SEPARATOR + path.replace(SEPARATOR, "_") + resultFileName);
-                    testArgs.add(new Object[] { file, expectedFile, actualFile });
-                }
-            }
-            in.close();
-        } catch (IOException e) {
-            e.printStackTrace();
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log);
         }
     }
 
     @Parameters
-    public static Collection<Object[]> tests() {
+    public static Collection<Object[]> tests() throws Exception {
         Collection<Object[]> testArgs = new ArrayList<Object[]>();
-        suiteBuild(new File(QUERIES_FILE), testArgs, "");
+        TestCaseContext.Builder b = new TestCaseContext.Builder();
+        for (TestCaseContext ctx : b.build(new File(PATH_BASE))) {
+            testArgs.add(new Object[] { ctx });
+        }
         return testArgs;
     }
 
-    private File actualFile;
-    private File expectedFile;
-    private File queryFile;
+    public MetadataTest(TestCaseContext tcCtx) {
+        this.tcCtx = tcCtx;
+    }
 
-    public MetadataTest(File queryFile, File expectedFile, File actualFile) {
-        this.queryFile = queryFile;
-        this.expectedFile = expectedFile;
-        this.actualFile = actualFile;
+    // Method that reads a DDL/Update/Query File
+    // and returns the contents as a string
+    // This string is later passed to REST API for execution.
+    public String readTestFile(File testFile) throws Exception {
+        BufferedReader reader = new BufferedReader(new FileReader(testFile));
+        String line = null;
+        StringBuilder stringBuilder = new StringBuilder();
+        String ls = System.getProperty("line.separator");
+
+        while ((line = reader.readLine()) != null) {
+            stringBuilder.append(line);
+            stringBuilder.append(ls);
+        }
+
+        return stringBuilder.toString();
+    }
+
+    // To execute DDL and Update statements
+    // create type statement
+    // create dataset statement
+    // create index statement
+    // create dataverse statement
+    // create function statement
+    public void executeDDL(String str) throws Exception {
+        final String url = "http://localhost:19101/ddl";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("ddl", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        // Execute the method.
+        int statusCode = client.executeMethod(method);
+
+        // Read the response body as String.
+        String responseBody = method.getResponseBodyAsString();
+
+        // Check if the method was executed successfully.
+        if (statusCode != HttpStatus.SC_OK) {
+            System.err.println("Method failed: " + method.getStatusLine());
+        }
+    }
+
+    // To execute Update statements
+    // Insert and Delete statements are executed here
+    public void executeUpdate(String str) throws Exception {
+        final String url = "http://localhost:19101/update";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("statements", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        // Execute the method.
+        int statusCode = client.executeMethod(method);
+
+        // Read the response body as String.
+        String responseBody = method.getResponseBodyAsString();
+
+        // Check if the method was executed successfully.
+        if (statusCode != HttpStatus.SC_OK) {
+            System.err.println("Method failed: " + method.getStatusLine());
+        }
+    }
+
+    // Executes Query and returns results as JSONArray
+    public JSONObject executeQuery(String str) throws Exception {
+
+        final String url = "http://localhost:19101/query";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("query", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        JSONObject result = null;
+
+        try {
+            // Execute the method.
+            int statusCode = client.executeMethod(method);
+
+            // Check if the method was executed successfully.
+            if (statusCode != HttpStatus.SC_OK) {
+                System.err.println("Method failed: " + method.getStatusLine());
+            }
+
+            // Read the response body as String.
+            String responseBody = method.getResponseBodyAsString();
+
+            result = new JSONObject(responseBody);
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+            e.printStackTrace();
+        }
+        return result;
     }
 
     @Test
     public void test() throws Exception {
-        Reader query = new BufferedReader(new FileReader(queryFile));
-        AsterixJavaClient asterix = new AsterixJavaClient(AsterixHyracksIntegrationUtil.getHyracksClientConnection(),
-                query, ERR);
-        try {
-            LOGGER.info("Query is: " + queryFile);
-            asterix.compile(true, false, false, false, false, true, false);
-            asterix.compile();
-        } catch (AsterixException e) {
-            throw new Exception("Compile ERROR for " + queryFile + ": " + e.getMessage(), e);
-        } finally {
-            query.close();
-        }
-        asterix.execute();
-        query.close();
+        List<TestFileContext> testFileCtxs;
+        List<TestFileContext> expectedResultFileCtxs;
 
-        if (actualFile.exists()) {
-            BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
-            BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
-            String lineExpected, lineActual;
-            int num = 1;
-            try {
-                while ((lineExpected = readerExpected.readLine()) != null) {
-                    lineActual = readerActual.readLine();
-                    if (lineActual == null) {
-                        throw new Exception("Result for " + queryFile + " changed at line " + num + ":\n< "
-                                + lineExpected + "\n> ");
+        File testFile;
+        File expectedResultFile;
+        String statement;
+
+        int queryCount = 0;
+        JSONObject result;
+
+        List<CompilationUnit> cUnits = tcCtx.getTestCase().getCompilationUnit();
+        for (CompilationUnit cUnit : cUnits) {
+            testFileCtxs = tcCtx.getTestFiles(cUnit);
+            expectedResultFileCtxs = tcCtx.getExpectedResultFiles(cUnit);
+
+            for (TestFileContext ctx : testFileCtxs) {
+                testFile = ctx.getFile();
+                statement = readTestFile(testFile);
+                try {
+                    switch (ctx.getType()) {
+                        case "ddl":
+                            executeDDL(statement);
+                            break;
+                        case "update":
+                            executeUpdate(statement);
+                            break;
+                        case "query":
+                            result = executeQuery(statement);
+                            if (!cUnit.getExpectedError().isEmpty()) {
+                                if (!result.has("error")) {
+                                    throw new Exception("Test \"" + testFile + "\" FAILED!");
+                                }
+                            } else {
+                                expectedResultFile = expectedResultFileCtxs.get(queryCount).getFile();
+
+                                File actualFile = new File(PATH_ACTUAL + File.separator
+                                        + tcCtx.getTestCase().getFilePath().replace(File.separator, "_") + "_"
+                                        + cUnit.getName() + ".adm");
+
+                                File actualResultFile = tcCtx.getActualResultFile(cUnit, new File(PATH_ACTUAL));
+                                actualResultFile.getParentFile().mkdirs();
+
+                                TestsUtils.writeResultsToFile(actualFile, result);
+
+                                TestsUtils.runScriptAndCompareWithResult(testFile, new PrintWriter(System.err),
+                                        expectedResultFile, actualFile);
+                            }
+                            queryCount++;
+                            break;
+                        default:
+                            throw new IllegalArgumentException("No statements of type " + ctx.getType());
                     }
-                    if (!lineExpected.split("Timestamp")[0].equals(lineActual.split("Timestamp")[0])) {
-                        throw new Exception("Result for " + queryFile + " changed at line " + num + ":\n< "
-                                + lineExpected + "\n> " + lineActual);
+                } catch (Exception e) {
+                    LOGGER.severe("Test \"" + testFile + "\" FAILED!");
+                    e.printStackTrace();
+                    if (cUnit.getExpectedError().isEmpty()) {
+                        throw new Exception("Test \"" + testFile + "\" FAILED!", e);
                     }
-                    ++num;
                 }
-                lineActual = readerActual.readLine();
-                if (lineActual != null) {
-                    throw new Exception("Result for " + queryFile + " changed at line " + num + ":\n< \n> "
-                            + lineActual);
-                }
-                actualFile.delete();
-            } finally {
-                readerExpected.close();
-                readerActual.close();
             }
         }
     }
+
 }
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTransactionsTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTransactionsTest.java
deleted file mode 100644
index 6081994..0000000
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/metadata/MetadataTransactionsTest.java
+++ /dev/null
@@ -1,272 +0,0 @@
-package edu.uci.ics.asterix.test.metadata;
-
-import static org.junit.Assert.fail;
-
-import java.io.BufferedReader;
-import java.io.DataInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-import java.io.Reader;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.logging.Logger;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameters;
-
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.api.java.AsterixJavaClient;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.test.aql.TestsUtils;
-
-@RunWith(Parameterized.class)
-public class MetadataTransactionsTest {
-
-    private static final Logger LOGGER = Logger.getLogger(MetadataTransactionsTest.class.getName());
-
-    private static final PrintWriter ERR = new PrintWriter(System.err);
-    private static final String EXTENSION_QUERY = "aql";
-    private static final String EXTENSION_RESULT = "adm";
-    private static final String PATH_ACTUAL = "rttest/";
-    private static final String PATH_BASE = "src/test/resources/metadata-transactions/";
-    private static final String CHECK_STATE_QUERIES_PATH = PATH_BASE + "check-state-queries/";
-    private static final String CHECK_STATE_RESULTS_PATH = PATH_BASE + "check-state-results/";
-    private static final String CHECK_STATE_FILE = PATH_BASE + "check-state-queries.txt";
-    private static final String INIT_STATE_QUERIES_PATH = PATH_BASE + "init-state-queries/";
-    private static final String INIT_STATE_FILE = PATH_BASE + "init-state-queries.txt";
-    private static final String TEST_QUERIES_PATH = PATH_BASE + "queries/";
-    private static final String QUERIES_FILE = PATH_BASE + "queries.txt";
-
-    private static String _oldConfigFileName;
-    private static final String TEST_CONFIG_FILE_NAME = "asterix-metadata.properties";
-    private static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
-
-    private static String aqlExtToResExt(String fname) {
-        int dot = fname.lastIndexOf('.');
-        return fname.substring(0, dot + 1) + EXTENSION_RESULT;
-    }
-
-    public static ArrayList<String> readFile(String fileName) {
-        ArrayList<String> list = new ArrayList<String>();
-        BufferedReader result;
-        try {
-            result = new BufferedReader(new FileReader(PATH_BASE + fileName));
-            while (true) {
-                String line = result.readLine();
-                if (line == null) {
-                    break;
-                } else {
-                    list.add(line);
-                }
-            }
-            result.close();
-        } catch (FileNotFoundException e) {
-        } catch (IOException e) {
-        }
-        return list;
-    }
-
-    private static void executeQueryTuple(Object[] queryTuple, boolean expectFailure, boolean executeQuery) {
-        String queryFileName = (String) queryTuple[0];
-        String expectedFileName = (String) queryTuple[1];
-        String actualFileName = (String) queryTuple[2];
-        try {
-            Reader query = new BufferedReader(new FileReader(queryFileName));
-            AsterixJavaClient asterix = new AsterixJavaClient(
-                    AsterixHyracksIntegrationUtil.getHyracksClientConnection(), query, ERR);
-            LOGGER.info("Query is: " + queryFileName);
-            try {
-                asterix.compile(true, false, false, false, false, executeQuery, false);
-            } finally {
-                query.close();
-            }
-            // We don't want to execute a query if we expect only DDL
-            // modifications.
-            if (executeQuery) {
-                asterix.execute();
-            }
-            query.close();
-        } catch (Exception e) {
-            if (!expectFailure) {
-                fail("Unexpected failure of AQL query in file: " + queryFileName + "\n" + e.getMessage());
-            }
-            return;
-        }
-        // Do we expect failure?
-        if (expectFailure) {
-            fail("Unexpected success of AQL query in file: " + queryFileName);
-        }
-        // If no expected or actual file names were given, then we don't want to
-        // compare them.
-        if (expectedFileName == null || actualFileName == null) {
-            return;
-        }
-        // Compare actual and expected results.
-        try {
-            File actualFile = new File(actualFileName);
-            File expectedFile = new File(expectedFileName);
-            if (actualFile.exists()) {
-                BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
-                BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
-                String lineExpected, lineActual;
-                int num = 1;
-                try {
-                    while ((lineExpected = readerExpected.readLine()) != null) {
-                        lineActual = readerActual.readLine();
-                        if (lineActual == null) {
-                            fail("Result for " + queryFileName + " changed at line " + num + ":\n< " + lineExpected
-                                    + "\n> ");
-                        }
-                        if (!lineExpected.split("Timestamp")[0].equals(lineActual.split("Timestamp")[0])) {
-                            fail("Result for " + queryFileName + " changed at line " + num + ":\n< " + lineExpected
-                                    + "\n> " + lineActual);
-                        }
-                        ++num;
-                    }
-                    lineActual = readerActual.readLine();
-                    if (lineActual != null) {
-                        fail("Result for " + queryFileName + " changed at line " + num + ":\n< \n> " + lineActual);
-                    }
-                    // actualFile.delete();
-                } finally {
-                    readerExpected.close();
-                    readerActual.close();
-                }
-            }
-        } catch (Exception e) {
-            fail("Execption occurred while comparing expected and actual results: " + e.getMessage());
-        }
-    }
-
-    // Collection of object arrays. Each object array contains exactly 3 string
-    // elements:
-    // 1. String QueryFile
-    // 2. String expectedFile
-    // 3. String actualFile
-    private static Collection<Object[]> checkQuerySuite = new ArrayList<Object[]>();
-
-    private static void checkMetadataState() {
-        for (Object[] checkTuple : checkQuerySuite) {
-            executeQueryTuple(checkTuple, false, true);
-        }
-    }
-
-    @BeforeClass
-    public static void setUp() throws Exception {
-        _oldConfigFileName = System.getProperty(GlobalConfig.CONFIG_FILE_PROPERTY);
-        System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
-        File outdir = new File(PATH_ACTUAL);
-        outdir.mkdirs();
-        AsterixHyracksIntegrationUtil.init();
-
-        // Create initial metadata state by adding the customers and orders
-        // metadata.
-        Collection<Object[]> initQuerySuite = new ArrayList<Object[]>();
-        prepareQuerySuite(INIT_STATE_FILE, INIT_STATE_QUERIES_PATH, null, null, initQuerySuite);
-        for (Object[] queryTuple : initQuerySuite) {
-            executeQueryTuple(queryTuple, false, false);
-        }
-
-        // Prepare the query suite for checking the metadata state is still
-        // correct.
-        prepareQuerySuite(CHECK_STATE_FILE, CHECK_STATE_QUERIES_PATH, CHECK_STATE_RESULTS_PATH, PATH_ACTUAL,
-                checkQuerySuite);
-
-        // Make sure the initial metadata state is set up correctly.
-        checkMetadataState();
-    }
-
-    @AfterClass
-    public static void tearDown() throws Exception {
-        // _bootstrap.stop();
-        AsterixHyracksIntegrationUtil.deinit();
-        File outdir = new File(PATH_ACTUAL);
-        File[] files = outdir.listFiles();
-        if (files == null || files.length == 0) {
-            // outdir.delete();
-        }
-        if (_oldConfigFileName != null) {
-            System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, _oldConfigFileName);
-        }
-        // clean up the files written by the ASTERIX storage manager
-        for (String d : ASTERIX_DATA_DIRS) {
-            TestsUtils.deleteRec(new File(d));
-        }
-    }
-
-    private static void prepareQuerySuite(String queryListPath, String queryPath, String expectedPath,
-            String actualPath, Collection<Object[]> output) {
-        try {
-            File queryListFile = new File(queryListPath);
-            FileInputStream fstream = new FileInputStream(queryListFile);
-            DataInputStream in = new DataInputStream(fstream);
-            BufferedReader br = new BufferedReader(new InputStreamReader(in));
-            String strLine;
-            String queryFileName;
-            File queryFile;
-            while ((strLine = br.readLine()) != null) {
-                // Ignore commented test files.
-                if (strLine.startsWith("//")) {
-                    continue;
-                }
-                queryFileName = queryPath + strLine;
-                queryFile = new File(queryPath + strLine);
-                // If no expected or actual path was given, just add the
-                // queryFile.
-                if (expectedPath == null || actualPath == null) {
-                    output.add(new Object[] { queryFileName, null, null });
-                    continue;
-                }
-                // We want to compare expected and actual results. Construct the
-                // expected and actual files.
-                if (queryFile.getName().endsWith(EXTENSION_QUERY)) {
-                    String resultFileName = aqlExtToResExt(queryFile.getName());
-                    String expectedFileName = expectedPath + resultFileName;
-                    String actualFileName = actualPath + resultFileName;
-                    output.add(new Object[] { queryFileName, expectedFileName, actualFileName });
-                }
-            }
-            in.close();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Parameters
-    public static Collection<Object[]> tests() {
-        Collection<Object[]> testArgs = new ArrayList<Object[]>();
-        prepareQuerySuite(QUERIES_FILE, TEST_QUERIES_PATH, null, null, testArgs);
-        return testArgs;
-    }
-
-    private String actualFileName;
-    private String expectedFileName;
-    private String queryFileName;
-
-    public MetadataTransactionsTest(String queryFileName, String expectedFileName, String actualFileName) {
-        this.queryFileName = queryFileName;
-        this.expectedFileName = expectedFileName;
-        this.actualFileName = actualFileName;
-    }
-
-    @Test
-    public void test() throws Exception {
-        // Re-create query tuple.
-        Object[] queryTuple = new Object[] { queryFileName, expectedFileName, actualFileName };
-
-        // Execute query tuple, expecting failure.
-        executeQueryTuple(queryTuple, true, false);
-
-        // Validate metadata state after failed query above.
-        checkMetadataState();
-    }
-}
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/optimizer/OptimizerTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/optimizer/OptimizerTest.java
index 4c6e301..8530ba1 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/optimizer/OptimizerTest.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/optimizer/OptimizerTest.java
@@ -2,13 +2,15 @@
 
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileReader;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.io.Reader;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.logging.Logger;
 
+import org.apache.commons.io.FileUtils;
 import org.junit.AfterClass;
 import org.junit.Assume;
 import org.junit.BeforeClass;
@@ -22,6 +24,8 @@
 import edu.uci.ics.asterix.api.java.AsterixJavaClient;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter;
+import edu.uci.ics.asterix.external.util.IdentitiyResolverFactory;
 import edu.uci.ics.asterix.test.base.AsterixTestHelper;
 import edu.uci.ics.asterix.test.common.TestHelper;
 
@@ -54,7 +58,17 @@
         System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, "19002");
         File outdir = new File(PATH_ACTUAL);
         outdir.mkdirs();
+        
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log); 
+        }
+        
         AsterixHyracksIntegrationUtil.init();
+        // Set the node resolver to be the identity resolver that expects node names 
+        // to be node controller ids; a valid assumption in test environment. 
+        System.setProperty(FileSystemBasedAdapter.NODE_RESOLVER_FACTORY_PROPERTY,
+                IdentitiyResolverFactory.class.getName());
     }
 
     @AfterClass
@@ -65,6 +79,11 @@
         if (files == null || files.length == 0) {
             outdir.delete();
         }
+        
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log); 
+        }
     }
 
     private static void suiteBuild(File dir, Collection<Object[]> testArgs, String path) {
@@ -120,13 +139,12 @@
             Assume.assumeTrue(!skipped);
 
             LOGGER.severe("RUN TEST: \"" + queryFile.getPath() + "\"");
-
-            Reader query = new BufferedReader(new FileReader(queryFile));
+            Reader query = new BufferedReader(new InputStreamReader(new FileInputStream(queryFile), "UTF-8"));
             PrintWriter plan = new PrintWriter(actualFile);
             AsterixJavaClient asterix = new AsterixJavaClient(
                     AsterixHyracksIntegrationUtil.getHyracksClientConnection(), query, plan);
             try {
-                asterix.compile(true, false, false, false, true, true, false);
+                asterix.compile(true, false, false, true, true, false, false);
             } catch (AsterixException e) {
                 plan.close();
                 query.close();
@@ -135,8 +153,10 @@
             plan.close();
             query.close();
 
-            BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
-            BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
+            BufferedReader readerExpected = new BufferedReader(new InputStreamReader(new FileInputStream(expectedFile),
+                    "UTF-8"));
+            BufferedReader readerActual = new BufferedReader(new InputStreamReader(new FileInputStream(actualFile),
+                    "UTF-8"));
 
             String lineExpected, lineActual;
             int num = 1;
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java
new file mode 100644
index 0000000..0dbf6d4
--- /dev/null
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/ExecutionTest.java
@@ -0,0 +1,284 @@
+package edu.uci.ics.asterix.test.runtime;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.NameValuePair;
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.apache.commons.httpclient.params.HttpMethodParams;
+import org.apache.commons.io.FileUtils;
+import org.json.JSONObject;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter;
+import edu.uci.ics.asterix.external.util.IdentitiyResolverFactory;
+import edu.uci.ics.asterix.test.aql.TestsUtils;
+import edu.uci.ics.asterix.testframework.context.TestCaseContext;
+import edu.uci.ics.asterix.testframework.context.TestFileContext;
+import edu.uci.ics.asterix.testframework.xml.TestCase.CompilationUnit;
+
+/**
+ * Runs the runtime test cases under 'asterix-app/src/test/resources/runtimets'.
+ */
+@RunWith(Parameterized.class)
+public class ExecutionTest {
+    private static final String PATH_ACTUAL = "rttest/";
+    private static final String PATH_BASE = "src/test/resources/runtimets/";
+
+    private static final String TEST_CONFIG_FILE_NAME = "test.properties";
+    private static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
+
+    private static final Logger LOGGER = Logger.getLogger(ExecutionTest.class.getName());
+
+    // private static NCBootstrapImpl _bootstrap = new NCBootstrapImpl();
+
+    @BeforeClass
+    public static void setUp() throws Exception {
+        System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
+        System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, "19002");
+        File outdir = new File(PATH_ACTUAL);
+        outdir.mkdirs();
+
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log);
+        }
+
+        AsterixHyracksIntegrationUtil.init();
+
+        // TODO: Uncomment when hadoop version is upgraded and adapters are
+        // ported. 
+        HDFSCluster.getInstance().setup();
+
+        // Set the node resolver to be the identity resolver that expects node names 
+        // to be node controller ids; a valid assumption in test environment. 
+        System.setProperty(FileSystemBasedAdapter.NODE_RESOLVER_FACTORY_PROPERTY,
+                IdentitiyResolverFactory.class.getName());
+    }
+
+    @AfterClass
+    public static void tearDown() throws Exception {
+        AsterixHyracksIntegrationUtil.deinit();
+        File outdir = new File(PATH_ACTUAL);
+        File[] files = outdir.listFiles();
+        if (files == null || files.length == 0) {
+            outdir.delete();
+        }
+        // clean up the files written by the ASTERIX storage manager
+        for (String d : ASTERIX_DATA_DIRS) {
+            TestsUtils.deleteRec(new File(d));
+        }
+
+        File log = new File("asterix_logs");
+        if (log.exists()) {
+            FileUtils.deleteDirectory(log);
+        }
+        HDFSCluster.getInstance().cleanup();
+    }
+
+    @Parameters
+    public static Collection<Object[]> tests() throws Exception {
+        Collection<Object[]> testArgs = new ArrayList<Object[]>();
+        TestCaseContext.Builder b = new TestCaseContext.Builder();
+        for (TestCaseContext ctx : b.build(new File(PATH_BASE))) {
+            testArgs.add(new Object[] { ctx });
+        }
+        return testArgs;
+    }
+
+    private TestCaseContext tcCtx;
+
+    public ExecutionTest(TestCaseContext tcCtx) {
+        this.tcCtx = tcCtx;
+    }
+
+    // Method that reads a DDL/Update/Query File
+    // and returns the contents as a string
+    // This string is later passed to REST API for execution.
+    public String readTestFile(File testFile) throws Exception {
+        BufferedReader reader = new BufferedReader(new FileReader(testFile));
+        String line = null;
+        StringBuilder stringBuilder = new StringBuilder();
+        String ls = System.getProperty("line.separator");
+
+        while ((line = reader.readLine()) != null) {
+            stringBuilder.append(line);
+            stringBuilder.append(ls);
+        }
+
+        return stringBuilder.toString();
+    }
+
+    // To execute DDL and Update statements
+    // create type statement
+    // create dataset statement
+    // create index statement
+    // create dataverse statement
+    // create function statement
+    public void executeDDL(String str) throws Exception {
+        final String url = "http://localhost:19101/ddl";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("ddl", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        // Execute the method.
+        int statusCode = client.executeMethod(method);
+
+        // Check if the method was executed successfully.
+        if (statusCode != HttpStatus.SC_OK) {
+            System.err.println("Method failed: " + method.getStatusLine());
+        }
+    }
+
+    // To execute Update statements
+    // Insert and Delete statements are executed here
+    public void executeUpdate(String str) throws Exception {
+        final String url = "http://localhost:19101/update";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("statements", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        // Execute the method.
+        int statusCode = client.executeMethod(method);
+
+        // Check if the method was executed successfully.
+        if (statusCode != HttpStatus.SC_OK) {
+            System.err.println("Method failed: " + method.getStatusLine());
+        }
+    }
+
+    // Executes Query and returns results as JSONArray
+    public JSONObject executeQuery(String str) throws Exception {
+
+        final String url = "http://localhost:19101/query";
+
+        // Create an instance of HttpClient.
+        HttpClient client = new HttpClient();
+
+        // Create a method instance.
+        GetMethod method = new GetMethod(url);
+
+        method.setQueryString(new NameValuePair[] { new NameValuePair("query", str) });
+
+        // Provide custom retry handler is necessary
+        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));
+
+        JSONObject result = null;
+
+        try {
+            // Execute the method.
+            int statusCode = client.executeMethod(method);
+
+            // Check if the method was executed successfully.
+            if (statusCode != HttpStatus.SC_OK) {
+                System.err.println("Method failed: " + method.getStatusLine());
+            }
+
+            // Read the response body as String.
+            String responseBody = method.getResponseBodyAsString();
+
+            result = new JSONObject(responseBody);
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+            e.printStackTrace();
+        }
+        return result;
+    }
+
+    @Test
+    public void test() throws Exception {
+        List<TestFileContext> testFileCtxs;
+        List<TestFileContext> expectedResultFileCtxs;
+
+        File testFile;
+        File expectedResultFile;
+        String statement;
+
+        int queryCount = 0;
+        JSONObject result;
+
+        List<CompilationUnit> cUnits = tcCtx.getTestCase().getCompilationUnit();
+        for (CompilationUnit cUnit : cUnits) {
+            LOGGER.info("[TEST]: " + tcCtx.getTestCase().getFilePath() + "/" + cUnit.getName());
+
+            testFileCtxs = tcCtx.getTestFiles(cUnit);
+            expectedResultFileCtxs = tcCtx.getExpectedResultFiles(cUnit);
+
+            for (TestFileContext ctx : testFileCtxs) {
+                testFile = ctx.getFile();
+                statement = readTestFile(testFile);
+                try {
+                    switch (ctx.getType()) {
+                        case "ddl":
+                            executeDDL(statement);
+                            break;
+                        case "update":
+                            executeUpdate(statement);
+                            break;
+                        case "query":
+                            result = executeQuery(statement);
+                            if (!cUnit.getExpectedError().isEmpty()) {
+                                if (!result.has("error")) {
+                                    throw new Exception("Test \"" + testFile + "\" FAILED!");
+                                }
+                            } else {
+                                expectedResultFile = expectedResultFileCtxs.get(queryCount).getFile();
+
+                                File actualFile = new File(PATH_ACTUAL + File.separator
+                                        + tcCtx.getTestCase().getFilePath().replace(File.separator, "_") + "_"
+                                        + cUnit.getName() + ".adm");
+
+                                File actualResultFile = tcCtx.getActualResultFile(cUnit, new File(PATH_ACTUAL));
+                                actualResultFile.getParentFile().mkdirs();
+
+                                TestsUtils.writeResultsToFile(actualFile, result);
+
+                                TestsUtils.runScriptAndCompareWithResult(testFile, new PrintWriter(System.err),
+                                        expectedResultFile, actualFile);
+                            }
+                            queryCount++;
+                            break;
+                        default:
+                            throw new IllegalArgumentException("No statements of type " + ctx.getType());
+                    }
+                } catch (Exception e) {
+                    if (cUnit.getExpectedError().isEmpty()) {
+                        throw new Exception("Test \"" + testFile + "\" FAILED!", e);
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java
new file mode 100644
index 0000000..20df118
--- /dev/null
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/HDFSCluster.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.test.runtime;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.hdfs.server.common.HdfsConstants.StartupOption;
+import org.apache.hadoop.mapred.InputSplit;
+import org.apache.hadoop.mapred.JobConf;
+
+import edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter;
+
+/**
+ * Manages a Mini (local VM) HDFS cluster with a configured number of datanodes.
+ * 
+ * @author ramangrover29
+ */
+@SuppressWarnings("deprecation")
+public class HDFSCluster {
+
+    private static final String PATH_TO_HADOOP_CONF = "src/test/resources/hadoop/conf";
+    private static final int nameNodePort = 31888;
+    private static final String DATA_PATH = "data/hdfs";
+    private static final String HDFS_PATH = "/asterix";
+    private static final HDFSCluster INSTANCE = new HDFSCluster();
+
+    private MiniDFSCluster dfsCluster;
+    private int numDataNodes = 2;
+    private JobConf conf = new JobConf();
+    private FileSystem dfs;
+
+    public static HDFSCluster getInstance() {
+        return INSTANCE;
+    }
+
+    private HDFSCluster() {
+
+    }
+
+    /**
+     * Instantiates the (Mini) DFS Cluster with the configured number of datanodes.
+     * Post instantiation, data is laoded to HDFS.
+     * Called prior to running the Runtime test suite.
+     */
+    public void setup() throws Exception {
+        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/core-site.xml"));
+        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/mapred-site.xml"));
+        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/hdfs-site.xml"));
+        cleanupLocal();
+        dfsCluster = new MiniDFSCluster(nameNodePort, conf, numDataNodes, true, true, StartupOption.REGULAR, null);
+        dfs = FileSystem.get(conf);
+        loadData();
+    }
+
+    private void loadData() throws IOException {
+        Path destDir = new Path(HDFS_PATH);
+        dfs.mkdirs(destDir);
+        File srcDir = new File(DATA_PATH);
+        File[] listOfFiles = srcDir.listFiles();
+        for (File srcFile : listOfFiles) {
+            Path path = new Path(srcFile.getAbsolutePath());
+            dfs.copyFromLocalFile(path, destDir);
+        }
+    }
+
+    private void cleanupLocal() throws IOException {
+        // cleanup artifacts created on the local file system
+        FileSystem lfs = FileSystem.getLocal(new Configuration());
+        lfs.delete(new Path("build"), true);
+        System.setProperty("hadoop.log.dir", "logs");
+    }
+
+    public void cleanup() throws Exception {
+        dfsCluster.shutdown();
+        cleanupLocal();
+    }
+
+    public static void main(String[] args) throws Exception {
+        HDFSCluster cluster = new HDFSCluster();
+        cluster.setup();
+        JobConf conf = configureJobConf();
+        FileSystem fs = FileSystem.get(conf);
+        InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, 0);
+        for (InputSplit split : inputSplits) {
+            System.out.println("split :" + split);
+        }
+        //   cluster.cleanup();
+    }
+
+    private static JobConf configureJobConf() throws Exception {
+        JobConf conf = new JobConf();
+        String hdfsUrl = "hdfs://127.0.0.1:31888";
+        String hdfsPath = "/asterix/extrasmalltweets.txt";
+        conf.set("fs.default.name", hdfsUrl);
+        conf.set("fs.hdfs.impl", "org.apache.hadoop.hdfs.DistributedFileSystem");
+        conf.setClassLoader(HDFSAdapter.class.getClassLoader());
+        conf.set("mapred.input.dir", hdfsPath);
+        conf.set("mapred.input.format.class", "org.apache.hadoop.mapred.TextInputFormat");
+        return conf;
+    }
+
+}
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java
deleted file mode 100644
index 79731b5..0000000
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java
+++ /dev/null
@@ -1,167 +0,0 @@
-package edu.uci.ics.asterix.test.runtime;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.logging.Logger;
-
-import org.apache.commons.io.FileUtils;
-import org.junit.AfterClass;
-import org.junit.Assume;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.internal.AssumptionViolatedException;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameters;
-
-import edu.uci.ics.asterix.api.common.AsterixHyracksIntegrationUtil;
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.test.aql.TestsUtils;
-import edu.uci.ics.asterix.test.common.TestHelper;
-
-@RunWith(Parameterized.class)
-public class RuntimeTest {
-
-    private static final PrintWriter ERR = new PrintWriter(System.err);
-    private static final String EXTENSION_QUERY = "aql";
-    private static final String FILENAME_IGNORE = "ignore.txt";
-    private static final String FILENAME_ONLY = "only.txt";
-    private static final ArrayList<String> ignore = readFile(FILENAME_IGNORE);
-    private static final ArrayList<String> only = readFile(FILENAME_ONLY);
-    private static final String PATH_ACTUAL = "rttest/";
-    private static final String PATH_BASE = "src/test/resources/runtimets/";
-    private static final String PATH_EXPECTED = PATH_BASE + "results/";
-    private static final String PATH_QUERIES = PATH_BASE + "queries/";
-    private static final String SEPARATOR = System.getProperty("file.separator");
-
-    private static final String TEST_CONFIG_FILE_NAME = "test.properties";
-    private static final String[] ASTERIX_DATA_DIRS = new String[] { "nc1data", "nc2data" };
-
-    private static final Logger LOGGER = Logger.getLogger(RuntimeTest.class.getName());
-
-    // private static NCBootstrapImpl _bootstrap = new NCBootstrapImpl();
-
-    private static ArrayList<String> readFile(String fileName) {
-        ArrayList<String> list = new ArrayList<String>();
-        BufferedReader result;
-        try {
-            result = new BufferedReader(new FileReader(PATH_BASE + fileName));
-            while (true) {
-                String line = result.readLine();
-                if (line == null) {
-                    break;
-                } else {
-                    String s = line.trim();
-                    if (s.length() > 0) {
-                        list.add(s);
-                    }
-                }
-            }
-            result.close();
-        } catch (FileNotFoundException e) {
-        } catch (IOException e) {
-        }
-        return list;
-    }
-
-    @BeforeClass
-    public static void setUp() throws Exception {
-        System.setProperty(GlobalConfig.CONFIG_FILE_PROPERTY, TEST_CONFIG_FILE_NAME);
-        System.setProperty(GlobalConfig.WEB_SERVER_PORT_PROPERTY, "19002");
-        File outdir = new File(PATH_ACTUAL);
-        outdir.mkdirs();
-
-        File log = new File("asterix_logs");
-        if (log.exists())
-            FileUtils.deleteDirectory(log);
-        File lsn = new File("last_checkpoint_lsn");
-        lsn.deleteOnExit();
-
-        AsterixHyracksIntegrationUtil.init();
-    }
-
-    @AfterClass
-    public static void tearDown() throws Exception {
-        AsterixHyracksIntegrationUtil.deinit();
-        File outdir = new File(PATH_ACTUAL);
-        File[] files = outdir.listFiles();
-        if (files == null || files.length == 0) {
-            outdir.delete();
-        }
-        // clean up the files written by the ASTERIX storage manager
-        for (String d : ASTERIX_DATA_DIRS) {
-            TestsUtils.deleteRec(new File(d));
-        }
-
-        File log = new File("asterix_logs");
-        if (log.exists())
-            FileUtils.deleteDirectory(log);
-        File lsn = new File("last_checkpoint_lsn");
-        lsn.deleteOnExit();
-    }
-
-    private static void suiteBuild(File dir, Collection<Object[]> testArgs, String path) {
-        for (File file : dir.listFiles()) {
-            if (file.isDirectory() && !file.getName().startsWith(".")) {
-                suiteBuild(file, testArgs, path + file.getName() + SEPARATOR);
-            }
-            if (file.isFile() && file.getName().endsWith(EXTENSION_QUERY)
-            // && !ignore.contains(path + file.getName())
-            ) {
-                String resultFileName = TestsUtils.aqlExtToResExt(file.getName());
-                File expectedFile = new File(PATH_EXPECTED + path + resultFileName);
-                File actualFile = new File(PATH_ACTUAL + SEPARATOR + path.replace(SEPARATOR, "_") + resultFileName);
-                testArgs.add(new Object[] { file, expectedFile, actualFile });
-            }
-        }
-    }
-
-    @Parameters
-    public static Collection<Object[]> tests() {
-        Collection<Object[]> testArgs = new ArrayList<Object[]>();
-        suiteBuild(new File(PATH_QUERIES), testArgs, "");
-        return testArgs;
-    }
-
-    private File actualFile;
-    private File expectedFile;
-    private File queryFile;
-
-    public RuntimeTest(File queryFile, File expectedFile, File actualFile) {
-        this.queryFile = queryFile;
-        this.expectedFile = expectedFile;
-        this.actualFile = actualFile;
-    }
-
-    @Test
-    public void test() throws Exception {
-        try {
-            String queryFileShort = queryFile.getPath().substring(PATH_QUERIES.length())
-                    .replace(SEPARATOR.charAt(0), '/');
-
-            if (!only.isEmpty()) {
-                Assume.assumeTrue(TestHelper.isInPrefixList(only, queryFileShort));
-            }
-            Assume.assumeTrue(!TestHelper.isInPrefixList(ignore, queryFileShort));
-            System.out.println("RUNNING TEST: " + queryFile + " \n");
-            LOGGER.severe("RUNNING TEST: " + queryFile + " \n");
-            TestsUtils.runScriptAndCompareWithResult(AsterixHyracksIntegrationUtil.getHyracksClientConnection(),
-                    queryFile, ERR, expectedFile, actualFile);
-        } catch (Exception e) {
-            if (!(e instanceof AssumptionViolatedException)) {
-                LOGGER.severe("Test \"" + queryFile.getPath() + "\" FAILED!");
-                e.printStackTrace();
-                throw new Exception("Test \"" + queryFile.getPath() + "\" FAILED!", e);
-            } else {
-                throw e;
-            }
-        }
-    }
-
-}
diff --git a/asterix-app/src/test/resources/AQLTS/queries/del-dataset.aql b/asterix-app/src/test/resources/AQLTS/queries/del-dataset.aql
index 51e4344..1660e44 100644
--- a/asterix-app/src/test/resources/AQLTS/queries/del-dataset.aql
+++ b/asterix-app/src/test/resources/AQLTS/queries/del-dataset.aql
@@ -24,6 +24,6 @@
 create nodegroup group1  if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 drop dataset Customers;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/AQLTS/queries/load-del-dataset.aql b/asterix-app/src/test/resources/AQLTS/queries/load-del-dataset.aql
index f70de14..576a9da 100644
--- a/asterix-app/src/test/resources/AQLTS/queries/load-del-dataset.aql
+++ b/asterix-app/src/test/resources/AQLTS/queries/load-del-dataset.aql
@@ -24,7 +24,7 @@
 create nodegroup group1  if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/aqljts/only.txt b/asterix-app/src/test/resources/aqljts/only.txt
deleted file mode 100644
index e69de29..0000000
--- a/asterix-app/src/test/resources/aqljts/only.txt
+++ /dev/null
diff --git a/asterix-app/src/test/resources/aqljts/queries/gram-tokens_01.aql b/asterix-app/src/test/resources/aqljts/queries/gram-tokens_01.aql
deleted file mode 100644
index 5f2b961..0000000
--- a/asterix-app/src/test/resources/aqljts/queries/gram-tokens_01.aql
+++ /dev/null
@@ -1,4 +0,0 @@
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := gram-tokens($txt, 3, false)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/aqljts/queries/nested_01.aql b/asterix-app/src/test/resources/aqljts/queries/nested_01.aql
deleted file mode 100644
index 968f314..0000000
--- a/asterix-app/src/test/resources/aqljts/queries/nested_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-for $x in [1]
-return {"x": 
-			[{"r": [["a", "b", "c"], ["d", "e", "f"]]}],
-		"y":
-			[{"s": [[1, 2, 3], [4, 5, 6]]}],
-		"z":
-			[{"t": [datetime("2011-09-16T11:00:00Z")]}]
-		}
-		
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/aqljts/results/gram-tokens_01.adm b/asterix-app/src/test/resources/aqljts/results/gram-tokens_01.adm
deleted file mode 100644
index f0f59c3..0000000
--- a/asterix-app/src/test/resources/aqljts/results/gram-tokens_01.adm
+++ /dev/null
@@ -1,21 +0,0 @@
-AString: {jür}
-AString: {ürg}
-AString: {rge}
-AString: {gen}
-AString: {en }
-AString: {n s}
-AString: { s.}
-AString: {s. }
-AString: {. g}
-AString: { ge}
-AString: {gen}
-AString: {ene}
-AString: {ner}
-AString: {eri}
-AString: {ric}
-AString: {ic'}
-AString: {c's}
-AString: {'s }
-AString: {s c}
-AString: { ca}
-AString: {car}
diff --git a/asterix-app/src/test/resources/aqljts/results/nested_01.adm b/asterix-app/src/test/resources/aqljts/results/nested_01.adm
deleted file mode 100644
index 54444c7..0000000
--- a/asterix-app/src/test/resources/aqljts/results/nested_01.adm
+++ /dev/null
@@ -1,33 +0,0 @@
-ARecordType: 
-field: x
-AbstractCollectionType: 
-ARecordType: 
-field: r
-AbstractCollectionType: 
-AbstractCollectionType: 
-AString: {a}
-AString: {b}
-AString: {c}
-AbstractCollectionType: 
-AString: {d}
-AString: {e}
-AString: {f}
-field: y
-AbstractCollectionType: 
-ARecordType: 
-field: s
-AbstractCollectionType: 
-AbstractCollectionType: 
-AInt32: {1}
-AInt32: {2}
-AInt32: {3}
-AbstractCollectionType: 
-AInt32: {4}
-AInt32: {5}
-AInt32: {6}
-field: z
-AbstractCollectionType: 
-ARecordType: 
-field: t
-AbstractCollectionType: 
-ADateTime: { 2011-9-16:11:0:0:0:0:0 }
diff --git a/asterix-app/src/test/resources/dapd/denorm_user_event.aql b/asterix-app/src/test/resources/dapd/denorm_user_event.aql
index a3b9fab..fe79872 100644
--- a/asterix-app/src/test/resources/dapd/denorm_user_event.aql
+++ b/asterix-app/src/test/resources/dapd/denorm_user_event.aql
@@ -27,8 +27,8 @@
 
 declare nodegroup group1 on nc1, nc2;
 
-declare dataset Users(UserType) partitioned by key u_name on group1;
-declare dataset Events(EventType) partitioned by key e_name on group1;
+declare dataset Users(UserType) primary key u_name on group1;
+declare dataset Events(EventType) primary key e_name on group1;
 
 write output to nc1:"/tmp/denorm_user_event.adm";
 
diff --git a/asterix-app/src/test/resources/dapd/q1.aql b/asterix-app/src/test/resources/dapd/q1.aql
index ae6b28f..934387b 100644
--- a/asterix-app/src/test/resources/dapd/q1.aql
+++ b/asterix-app/src/test/resources/dapd/q1.aql
@@ -23,7 +23,7 @@
 
 declare nodegroup group1 on nc1, nc2;
 
-declare dataset User(UserType) partitioned by key name on group1;
+declare dataset User(UserType) primary key name on group1;
 
 write output to nc1:"/tmp/q1.adm";
 
diff --git a/asterix-app/src/test/resources/dapd/q2.aql b/asterix-app/src/test/resources/dapd/q2.aql
index 3998b9e..fdb0469 100644
--- a/asterix-app/src/test/resources/dapd/q2.aql
+++ b/asterix-app/src/test/resources/dapd/q2.aql
@@ -37,7 +37,7 @@
 
 drop dataset Event;
 declare dataset Event(EventType) 
-  partitioned by key event_id on group1;
+  primary key event_id on group1;
 
 load dataset Event 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo0216/01-load-dblp-large.aql b/asterix-app/src/test/resources/demo0216/01-load-dblp-large.aql
index 0cb6b21..171c935 100644
--- a/asterix-app/src/test/resources/demo0216/01-load-dblp-large.aql
+++ b/asterix-app/src/test/resources/demo0216/01-load-dblp-large.aql
@@ -12,7 +12,7 @@
 rainbow-04, rainbow-05;
 
 declare dataset DBLP(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 load dataset DBLP 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo0216/03-load-dblp-small.aql b/asterix-app/src/test/resources/demo0216/03-load-dblp-small.aql
index f4d8ae0..751179f 100644
--- a/asterix-app/src/test/resources/demo0216/03-load-dblp-small.aql
+++ b/asterix-app/src/test/resources/demo0216/03-load-dblp-small.aql
@@ -12,7 +12,7 @@
 rainbow-04, rainbow-05;
 
 declare dataset DBLPSmall(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 load dataset DBLPSmall 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo0216/110-self-join-dblp.aql b/asterix-app/src/test/resources/demo0216/110-self-join-dblp.aql
index 9077f33..dc40196 100644
--- a/asterix-app/src/test/resources/demo0216/110-self-join-dblp.aql
+++ b/asterix-app/src/test/resources/demo0216/110-self-join-dblp.aql
@@ -12,7 +12,7 @@
 rainbow-04, rainbow-05;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to rainbow-01:"/home/hyracks/dblp-self-join.adm";
 
diff --git a/asterix-app/src/test/resources/demo0216/120-self-join-dblp-small.aql b/asterix-app/src/test/resources/demo0216/120-self-join-dblp-small.aql
index 66ca6cb..5802236 100644
--- a/asterix-app/src/test/resources/demo0216/120-self-join-dblp-small.aql
+++ b/asterix-app/src/test/resources/demo0216/120-self-join-dblp-small.aql
@@ -12,7 +12,7 @@
 rainbow-04, rainbow-05;
 
 declare dataset DBLPSmall(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to rainbow-01:"/home/hyracks/small-dblp-self-join.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/local/create-index.aql b/asterix-app/src/test/resources/demo0927/local/create-index.aql
index 3ecd163..dd41fc8 100644
--- a/asterix-app/src/test/resources/demo0927/local/create-index.aql
+++ b/asterix-app/src/test/resources/demo0927/local/create-index.aql
@@ -20,6 +20,6 @@
 declare nodegroup group1 on nc1,nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 create index NameIndex on Customers(name);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/demo0927/local/dataset-filter-int.aql b/asterix-app/src/test/resources/demo0927/local/dataset-filter-int.aql
index 3acb8f8..c50405b 100644
--- a/asterix-app/src/test/resources/demo0927/local/dataset-filter-int.aql
+++ b/asterix-app/src/test/resources/demo0927/local/dataset-filter-int.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/local/dataset-filter-str.aql b/asterix-app/src/test/resources/demo0927/local/dataset-filter-str.aql
index 35401cf..89242ea 100644
--- a/asterix-app/src/test/resources/demo0927/local/dataset-filter-str.aql
+++ b/asterix-app/src/test/resources/demo0927/local/dataset-filter-str.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/local/dataset-scan.aql b/asterix-app/src/test/resources/demo0927/local/dataset-scan.aql
index 2f8746c..230b6f2 100644
--- a/asterix-app/src/test/resources/demo0927/local/dataset-scan.aql
+++ b/asterix-app/src/test/resources/demo0927/local/dataset-scan.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/local/declare-index.aql b/asterix-app/src/test/resources/demo0927/local/declare-index.aql
index ecacc49..49c0a31 100644
--- a/asterix-app/src/test/resources/demo0927/local/declare-index.aql
+++ b/asterix-app/src/test/resources/demo0927/local/declare-index.aql
@@ -20,6 +20,6 @@
 declare nodegroup group1 on nc1,nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 declare index NameIndex on Customers(name);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/demo0927/local/join-cust-ord.aql b/asterix-app/src/test/resources/demo0927/local/join-cust-ord.aql
index b262860..6630507 100644
--- a/asterix-app/src/test/resources/demo0927/local/join-cust-ord.aql
+++ b/asterix-app/src/test/resources/demo0927/local/join-cust-ord.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/local/load-cust.aql b/asterix-app/src/test/resources/demo0927/local/load-cust.aql
index b71731c..885b226 100644
--- a/asterix-app/src/test/resources/demo0927/local/load-cust.aql
+++ b/asterix-app/src/test/resources/demo0927/local/load-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo0927/local/load-ord.aql b/asterix-app/src/test/resources/demo0927/local/load-ord.aql
index 15ba4cf..6fba4b1 100644
--- a/asterix-app/src/test/resources/demo0927/local/load-ord.aql
+++ b/asterix-app/src/test/resources/demo0927/local/load-ord.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders from nc1:"/tmp/orderData.json";
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo0927/rainbow/01-load-cust.aql b/asterix-app/src/test/resources/demo0927/rainbow/01-load-cust.aql
index 74502a0..ed750e5 100644
--- a/asterix-app/src/test/resources/demo0927/rainbow/01-load-cust.aql
+++ b/asterix-app/src/test/resources/demo0927/rainbow/01-load-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers from rainbow-01:"/home/hyracks/demo-data/customerData.json";
 //  delete dataset Customers;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/demo0927/rainbow/02-filter-cust.aql b/asterix-app/src/test/resources/demo0927/rainbow/02-filter-cust.aql
index 2ed1304..d8070ef 100644
--- a/asterix-app/src/test/resources/demo0927/rainbow/02-filter-cust.aql
+++ b/asterix-app/src/test/resources/demo0927/rainbow/02-filter-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to rainbow-01:"/home/hyracks/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo0927/rainbow/03-load-ord.aql b/asterix-app/src/test/resources/demo0927/rainbow/03-load-ord.aql
index a9bfe61..0fb5398 100644
--- a/asterix-app/src/test/resources/demo0927/rainbow/03-load-ord.aql
+++ b/asterix-app/src/test/resources/demo0927/rainbow/03-load-ord.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders from rainbow-01:"/home/hyracks/demo-data/orderData.json";
 // delete dataset Orders;
diff --git a/asterix-app/src/test/resources/demo0927/rainbow/04-join-custord.aql b/asterix-app/src/test/resources/demo0927/rainbow/04-join-custord.aql
index 57cc397..d89a799 100644
--- a/asterix-app/src/test/resources/demo0927/rainbow/04-join-custord.aql
+++ b/asterix-app/src/test/resources/demo0927/rainbow/04-join-custord.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to rainbow-01:"/home/hyracks/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/demo1112/local/01-load-cust.aql b/asterix-app/src/test/resources/demo1112/local/01-load-cust.aql
index 8d764c3..dd7d2a9 100644
--- a/asterix-app/src/test/resources/demo1112/local/01-load-cust.aql
+++ b/asterix-app/src/test/resources/demo1112/local/01-load-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo1112/local/02-filter-cust.aql b/asterix-app/src/test/resources/demo1112/local/02-filter-cust.aql
index 24c5827..eb3f9a8 100644
--- a/asterix-app/src/test/resources/demo1112/local/02-filter-cust.aql
+++ b/asterix-app/src/test/resources/demo1112/local/02-filter-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo1112/local/03-load-ord.aql b/asterix-app/src/test/resources/demo1112/local/03-load-ord.aql
index 7db4f4e..83657df 100644
--- a/asterix-app/src/test/resources/demo1112/local/03-load-ord.aql
+++ b/asterix-app/src/test/resources/demo1112/local/03-load-ord.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo1112/local/04-join-custord.aql b/asterix-app/src/test/resources/demo1112/local/04-join-custord.aql
index 1238e7e..fa82c9a 100644
--- a/asterix-app/src/test/resources/demo1112/local/04-join-custord.aql
+++ b/asterix-app/src/test/resources/demo1112/local/04-join-custord.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/demo1112/rainbow/01-load-cust.aql b/asterix-app/src/test/resources/demo1112/rainbow/01-load-cust.aql
index ccb959d..f8c34fb 100644
--- a/asterix-app/src/test/resources/demo1112/rainbow/01-load-cust.aql
+++ b/asterix-app/src/test/resources/demo1112/rainbow/01-load-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers from rainbow-01:"/home/onose/demo-data/customerData.adm";
 // drop dataset Customers;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/demo1112/rainbow/02-filter-cust.aql b/asterix-app/src/test/resources/demo1112/rainbow/02-filter-cust.aql
index 2c08f34..2993b92 100644
--- a/asterix-app/src/test/resources/demo1112/rainbow/02-filter-cust.aql
+++ b/asterix-app/src/test/resources/demo1112/rainbow/02-filter-cust.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/mycustomers.adm";
 
diff --git a/asterix-app/src/test/resources/demo1112/rainbow/03-load-ord.aql b/asterix-app/src/test/resources/demo1112/rainbow/03-load-ord.aql
index 1329aa4..3134818 100644
--- a/asterix-app/src/test/resources/demo1112/rainbow/03-load-ord.aql
+++ b/asterix-app/src/test/resources/demo1112/rainbow/03-load-ord.aql
@@ -12,6 +12,6 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders from rainbow-01:"/home/onose/demo-data/orderData.adm";
diff --git a/asterix-app/src/test/resources/demo1112/rainbow/04-join-custord.aql b/asterix-app/src/test/resources/demo1112/rainbow/04-join-custord.aql
index 63c4670..18426d4 100644
--- a/asterix-app/src/test/resources/demo1112/rainbow/04-join-custord.aql
+++ b/asterix-app/src/test/resources/demo1112/rainbow/04-join-custord.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/demo1112/rainbow/05-count-custord.aql b/asterix-app/src/test/resources/demo1112/rainbow/05-count-custord.aql
index dcbea09..f55ccbd 100644
--- a/asterix-app/src/test/resources/demo1112/rainbow/05-count-custord.aql
+++ b/asterix-app/src/test/resources/demo1112/rainbow/05-count-custord.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/01-load-cust.aql b/asterix-app/src/test/resources/demo_aql/local/01-load-cust.aql
index cd7a682..0cbbf5b 100644
--- a/asterix-app/src/test/resources/demo_aql/local/01-load-cust.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/01-load-cust.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo_aql/local/02-filter-cust.aql b/asterix-app/src/test/resources/demo_aql/local/02-filter-cust.aql
index 38171ed..f631afc 100644
--- a/asterix-app/src/test/resources/demo_aql/local/02-filter-cust.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/02-filter-cust.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/02-filter-cust.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/03-count-cust-age.aql b/asterix-app/src/test/resources/demo_aql/local/03-count-cust-age.aql
index 37698a7..1bba3f6 100644
--- a/asterix-app/src/test/resources/demo_aql/local/03-count-cust-age.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/03-count-cust-age.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/03-count-cust-age.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/04-load-ord.aql b/asterix-app/src/test/resources/demo_aql/local/04-load-ord.aql
index b8898f5..00f4f10 100644
--- a/asterix-app/src/test/resources/demo_aql/local/04-load-ord.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/04-load-ord.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo_aql/local/05-count-param1.aql b/asterix-app/src/test/resources/demo_aql/local/05-count-param1.aql
index 02263c4..f7cc468 100644
--- a/asterix-app/src/test/resources/demo_aql/local/05-count-param1.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/05-count-param1.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/05-count-param1.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/06-count-custord.aql b/asterix-app/src/test/resources/demo_aql/local/06-count-custord.aql
index 86e6ea0..3ff3a43 100644
--- a/asterix-app/src/test/resources/demo_aql/local/06-count-custord.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/06-count-custord.aql
@@ -28,9 +28,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/06-count-custord.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/101-load-dblp.aql b/asterix-app/src/test/resources/demo_aql/local/101-load-dblp.aql
index 7d6dc62..03cf233 100644
--- a/asterix-app/src/test/resources/demo_aql/local/101-load-dblp.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/101-load-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 load dataset DBLP 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/demo_aql/local/102-fuzzy-select.aql b/asterix-app/src/test/resources/demo_aql/local/102-fuzzy-select.aql
index e37b49a..2cea3c5 100644
--- a/asterix-app/src/test/resources/demo_aql/local/102-fuzzy-select.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/102-fuzzy-select.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 write output to nc1:"/tmp/102-fuzzy-select.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/local/110-self-join-dblp.aql b/asterix-app/src/test/resources/demo_aql/local/110-self-join-dblp.aql
index f51e455..64a65a5 100644
--- a/asterix-app/src/test/resources/demo_aql/local/110-self-join-dblp.aql
+++ b/asterix-app/src/test/resources/demo_aql/local/110-self-join-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:"/tmp/110-self-join-dblp.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/01-load-cust.aql b/asterix-app/src/test/resources/demo_aql/rainbow/01-load-cust.aql
index e75bce2..143f55f 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/01-load-cust.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/01-load-cust.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers from rainbow-01:"/home/onose/demo-data/semistructured/customer.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/02-filter-cust.aql b/asterix-app/src/test/resources/demo_aql/rainbow/02-filter-cust.aql
index 8af2368..a99e088 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/02-filter-cust.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/02-filter-cust.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/02-filter-cust.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/03-count-cust-age.aql b/asterix-app/src/test/resources/demo_aql/rainbow/03-count-cust-age.aql
index eda4015..714c60a 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/03-count-cust-age.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/03-count-cust-age.aql
@@ -18,7 +18,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/03-count-cust-age.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/04-load-ord.aql b/asterix-app/src/test/resources/demo_aql/rainbow/04-load-ord.aql
index bae97e8..be7a874 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/04-load-ord.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/04-load-ord.aql
@@ -12,6 +12,6 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders from rainbow-01:"/home/onose/demo-data/semistructured/orders.adm";
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/05-count-param1.aql b/asterix-app/src/test/resources/demo_aql/rainbow/05-count-param1.aql
index f5ec449..0ea243a 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/05-count-param1.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/05-count-param1.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/05-count-param1.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/06-count-custord.aql b/asterix-app/src/test/resources/demo_aql/rainbow/06-count-custord.aql
index ba5d5f4..2502d48a 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/06-count-custord.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/06-count-custord.aql
@@ -29,9 +29,9 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/06-count-custord.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/101-load-dblp.aql b/asterix-app/src/test/resources/demo_aql/rainbow/101-load-dblp.aql
index 20f0b51..9ed4a85 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/101-load-dblp.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/101-load-dblp.aql
@@ -12,7 +12,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset DBLP(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 load dataset DBLP from
   rainbow-01:"/home/onose/demo-data/dblp-id.txt" delimited by ":";
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/102-fuzzy-select.aql b/asterix-app/src/test/resources/demo_aql/rainbow/102-fuzzy-select.aql
index c9f072a..af129cb 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/102-fuzzy-select.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/102-fuzzy-select.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset DBLP(DBLPType)
- partitioned by key id on group1;
+ primary key id on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/102-fuzzy-select.adm";
 
diff --git a/asterix-app/src/test/resources/demo_aql/rainbow/110-self-join-dblp.aql b/asterix-app/src/test/resources/demo_aql/rainbow/110-self-join-dblp.aql
index c5b900b..37f06a0 100644
--- a/asterix-app/src/test/resources/demo_aql/rainbow/110-self-join-dblp.aql
+++ b/asterix-app/src/test/resources/demo_aql/rainbow/110-self-join-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on rainbow-01, rainbow-02, rainbow-03, rainbow-04, rainbow-05;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to rainbow-01:"/home/onose/hyracks-rainbow/results/110-self-join-dblp.adm";
 
diff --git a/asterix-app/src/test/resources/dmlts/scripts/enlist-scan-cust.aql b/asterix-app/src/test/resources/dmlts/scripts/enlist-scan-cust.aql
index ed44308..5bc029d 100644
--- a/asterix-app/src/test/resources/dmlts/scripts/enlist-scan-cust.aql
+++ b/asterix-app/src/test/resources/dmlts/scripts/enlist-scan-cust.aql
@@ -24,7 +24,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 enlist dataset Customers;
 
diff --git a/asterix-app/src/test/resources/dmlts/scripts/load-cust.aql b/asterix-app/src/test/resources/dmlts/scripts/load-cust.aql
index d55dfed..77d023e 100644
--- a/asterix-app/src/test/resources/dmlts/scripts/load-cust.aql
+++ b/asterix-app/src/test/resources/dmlts/scripts/load-cust.aql
@@ -24,7 +24,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx-small.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx-small.aql
index f7dcf0e..5e819bd 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx-small.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx-small.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset CSXSmall(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset CSXSmall 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx.aql
index b5787a1..0b6da50 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-csx.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset CSX 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-dblp.aql
index 3ca85bb..c726018f 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/10-load-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1; 
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset DBLP 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/20-drop-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/20-drop-dblp.aql
index 868d534..66af9ce 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/20-drop-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/20-drop-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset DBLP;
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/30-filter-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/30-filter-dblp.aql
index 45bd1c8..4a6b486 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/30-filter-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/30-filter-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:"/tmp/amerix.adm";
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/40-self-join-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/40-self-join-dblp.aql
index bc024c3..60eafd3 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/40-self-join-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/40-self-join-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1; 
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:"/tmp/amerix.adm";
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/amerix/50-self-join-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/amerix/50-self-join-dblp.aql
index eb44be7..536b549 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/amerix/50-self-join-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/amerix/50-self-join-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:"/tmp/amerix.adm";
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/000-1-char-at.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/000-1-char-at.aql
index 43a595d..182a17d 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/000-1-char-at.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/000-1-char-at.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:"/tmp/dblp.adm";
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/010-load.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/010-load.aql
index a857935..ab93f83 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/010-load.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/010-load.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset DBLP 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/020-drop.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/020-drop.aql
index 65213dd..c82183b 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/020-drop.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/020-drop.aql
@@ -11,6 +11,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset DBLP;
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/030-filter.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/030-filter.aql
index b539aba..2588e99 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/030-filter.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/030-filter.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/dblp.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/040-self-join-aql.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/040-self-join-aql.aql
index 63e1a1e..4ac1a60 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/040-self-join-aql.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/040-self-join-aql.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/dblp.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/dblp/050-self-join-op.aql b/asterix-app/src/test/resources/fuzzyjoin/dblp/050-self-join-op.aql
index f2467f2..e97df35 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/dblp/050-self-join-op.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/dblp/050-self-join-op.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/dblp.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/010-load-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/010-load-dblp.aql
index 49d07ec..7ae0e30 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/010-load-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/010-load-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 // load dataset DBLP from nc1:'/asterix/asterix-app/data/pub-small/dblp-small-id.txt'
 load dataset DBLP 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/020-drop-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/020-drop-dblp.aql
index 65213dd..c82183b 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/020-drop-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/020-drop-dblp.aql
@@ -11,6 +11,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset DBLP;
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/030-filter-dblp.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/030-filter-dblp.aql
index d67d58a..7950d12 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/030-filter-dblp.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/030-filter-dblp.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/pub.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/040-load-csx.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/040-load-csx.aql
index 06dfb4e..a87398d 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/040-load-csx.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/040-load-csx.aql
@@ -11,7 +11,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 // load dataset CSX from nc1:'/asterix/asterix-app/data/pub-small/csx-small-id.txt'
 load dataset  CSX
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/050-drop-csx.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/050-drop-csx.aql
index c37c8b5..62e53ca 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/050-drop-csx.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/050-drop-csx.aql
@@ -11,6 +11,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset CSX;
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/060-filter-csx.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/060-filter-csx.aql
index 56b6dc9..daf53d3 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/060-filter-csx.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/060-filter-csx.aql
@@ -13,7 +13,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/pub.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/070-join-aql.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/070-join-aql.aql
index ec88679..a72fa03 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/070-join-aql.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/070-join-aql.aql
@@ -19,10 +19,10 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/pub.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/pub/080-join-op.aql b/asterix-app/src/test/resources/fuzzyjoin/pub/080-join-op.aql
index 032031f..0466033 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/pub/080-join-op.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/pub/080-join-op.aql
@@ -19,10 +19,10 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 declare dataset CSX(CSXType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'/tmp/pub.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/010-load-users.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/010-load-users.aql
index be75fa6..affd0f3 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/010-load-users.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/010-load-users.aql
@@ -10,7 +10,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 load dataset Users 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/020-drop-users.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/020-drop-users.aql
index 86525a7..71df5ae 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/020-drop-users.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/020-drop-users.aql
@@ -10,6 +10,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 drop dataset Users;
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/030-filter-users.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/030-filter-users.aql
index 298c0b1..4e6846f 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/030-filter-users.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/030-filter-users.aql
@@ -10,7 +10,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 write output to nc1:'/tmp/users.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/040-load-visitors.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/040-load-visitors.aql
index a75989a..0e07e69 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/040-load-visitors.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/040-load-visitors.aql
@@ -10,7 +10,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 load dataset Visitors 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/050-drop-visitors.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/050-drop-visitors.aql
index 15047b8..3a8e725 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/050-drop-visitors.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/050-drop-visitors.aql
@@ -10,6 +10,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 drop dataset Visitors;
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/060-fililter-visitors.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/060-fililter-visitors.aql
index dae180e..1fb0a4c 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/060-fililter-visitors.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/060-fililter-visitors.aql
@@ -10,7 +10,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 write output to nc1:'/tmp/visitors.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/070-join-aql-lottery_numbers.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/070-join-aql-lottery_numbers.aql
index aaa145f..c5a625a 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/070-join-aql-lottery_numbers.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/070-join-aql-lottery_numbers.aql
@@ -17,9 +17,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 write output to nc1:'/tmp/users-visitors.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/080-join-op-lottery_numbers.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/080-join-op-lottery_numbers.aql
index ca5bebb..4275067 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/080-join-op-lottery_numbers.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/080-join-op-lottery_numbers.aql
@@ -17,9 +17,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 write output to nc1:'/tmp/users-visitors.adm';
 
diff --git a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/090-join-op-interests.aql b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/090-join-op-interests.aql
index a7cf0a4..856e02f 100644
--- a/asterix-app/src/test/resources/fuzzyjoin/users-visitors/090-join-op-interests.aql
+++ b/asterix-app/src/test/resources/fuzzyjoin/users-visitors/090-join-op-interests.aql
@@ -17,9 +17,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 declare dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 write output to nc1:'/tmp/users-visitors.adm';
 
diff --git a/asterix-app/src/test/resources/hadoop/conf/core-site.xml b/asterix-app/src/test/resources/hadoop/conf/core-site.xml
new file mode 100644
index 0000000..47dfac5
--- /dev/null
+++ b/asterix-app/src/test/resources/hadoop/conf/core-site.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+<property>
+    <name>fs.default.name</name>
+    <value>hdfs://127.0.0.1:31888</value>
+</property>
+<property>
+    <name>hadoop.tmp.dir</name>
+    <value>/tmp/hadoop</value>
+</property>
+
+
+</configuration>
diff --git a/asterix-app/src/test/resources/hadoop/conf/hdfs-site.xml b/asterix-app/src/test/resources/hadoop/conf/hdfs-site.xml
new file mode 100644
index 0000000..8d29b1d
--- /dev/null
+++ b/asterix-app/src/test/resources/hadoop/conf/hdfs-site.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+<property>
+   <name>dfs.replication</name>
+   <value>1</value>
+</property>
+
+<property>
+	<name>dfs.block.size</name>
+	<value>65536</value>
+</property>
+
+</configuration>
diff --git a/asterix-app/src/test/resources/hadoop/conf/log4j.properties b/asterix-app/src/test/resources/hadoop/conf/log4j.properties
new file mode 100644
index 0000000..d5e6004
--- /dev/null
+++ b/asterix-app/src/test/resources/hadoop/conf/log4j.properties
@@ -0,0 +1,94 @@
+# Define some default values that can be overridden by system properties
+hadoop.root.logger=FATAL,console
+hadoop.log.dir=.
+hadoop.log.file=hadoop.log
+
+# Define the root logger to the system property "hadoop.root.logger".
+log4j.rootLogger=${hadoop.root.logger}, EventCounter
+
+# Logging Threshold
+log4j.threshhold=FATAL
+
+#
+# Daily Rolling File Appender
+#
+
+log4j.appender.DRFA=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.DRFA.File=${hadoop.log.dir}/${hadoop.log.file}
+
+# Rollver at midnight
+log4j.appender.DRFA.DatePattern=.yyyy-MM-dd
+
+# 30-day backup
+#log4j.appender.DRFA.MaxBackupIndex=30
+log4j.appender.DRFA.layout=org.apache.log4j.PatternLayout
+
+# Pattern format: Date LogLevel LoggerName LogMessage
+log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
+# Debugging Pattern format
+#log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
+
+
+#
+# console
+# Add "console" to rootlogger above if you want to use this 
+#
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.target=System.err
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
+
+#
+# TaskLog Appender
+#
+
+#Default values
+hadoop.tasklog.taskid=null
+hadoop.tasklog.noKeepSplits=4
+hadoop.tasklog.totalLogFileSize=100
+hadoop.tasklog.purgeLogSplits=true
+hadoop.tasklog.logsRetainHours=12
+
+log4j.appender.TLA=org.apache.hadoop.mapred.TaskLogAppender
+log4j.appender.TLA.taskId=${hadoop.tasklog.taskid}
+log4j.appender.TLA.totalLogFileSize=${hadoop.tasklog.totalLogFileSize}
+
+log4j.appender.TLA.layout=org.apache.log4j.PatternLayout
+log4j.appender.TLA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
+
+#
+# Rolling File Appender
+#
+
+#log4j.appender.RFA=org.apache.log4j.RollingFileAppender
+#log4j.appender.RFA.File=${hadoop.log.dir}/${hadoop.log.file}
+
+# Logfile size and and 30-day backups
+#log4j.appender.RFA.MaxFileSize=1MB
+#log4j.appender.RFA.MaxBackupIndex=30
+
+#log4j.appender.RFA.layout=org.apache.log4j.PatternLayout
+#log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} - %m%n
+#log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
+
+#
+# FSNamesystem Audit logging
+# All audit events are logged at INFO level
+#
+log4j.logger.org.apache.hadoop.fs.FSNamesystem.audit=WARN
+
+# Custom Logging levels
+
+#log4j.logger.org.apache.hadoop.mapred.JobTracker=DEBUG
+#log4j.logger.org.apache.hadoop.mapred.TaskTracker=DEBUG
+#log4j.logger.org.apache.hadoop.fs.FSNamesystem=DEBUG
+
+# Jets3t library
+log4j.logger.org.jets3t.service.impl.rest.httpclient.RestS3Service=ERROR
+
+#
+# Event Counter Appender
+# Sends counts of logging messages at different severity levels to Hadoop Metrics.
+#
+log4j.appender.EventCounter=org.apache.hadoop.metrics.jvm.EventCounter
diff --git a/asterix-app/src/test/resources/hadoop/conf/mapred-site.xml b/asterix-app/src/test/resources/hadoop/conf/mapred-site.xml
new file mode 100644
index 0000000..1b9a4d6
--- /dev/null
+++ b/asterix-app/src/test/resources/hadoop/conf/mapred-site.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+  <property>
+    <name>mapred.job.tracker</name>
+    <value>localhost:29007</value>
+  </property>
+  <property>
+     <name>mapred.tasktracker.map.tasks.maximum</name>
+     <value>20</value>
+  </property>
+   <property>
+      <name>mapred.tasktracker.reduce.tasks.maximum</name>
+      <value>20</value>
+   </property>
+   <property>
+      <name>mapred.min.split.size</name>
+      <value>65536</value>
+   </property>
+
+</configuration>
diff --git a/asterix-app/src/test/resources/integration/queries/dataset-scan.aql b/asterix-app/src/test/resources/integration/queries/dataset-scan.aql
index 1930be2..f7558c5 100644
--- a/asterix-app/src/test/resources/integration/queries/dataset-scan.aql
+++ b/asterix-app/src/test/resources/integration/queries/dataset-scan.aql
@@ -20,7 +20,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 for $c in dataset('Customers')
 return $c
diff --git a/asterix-app/src/test/resources/integration/updates/load-dataset.aql b/asterix-app/src/test/resources/integration/updates/load-dataset.aql
index c6faa6e..4041450 100644
--- a/asterix-app/src/test/resources/integration/updates/load-dataset.aql
+++ b/asterix-app/src/test/resources/integration/updates/load-dataset.aql
@@ -15,7 +15,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Customers 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
index b1007e3..f96be6c 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
@@ -1,9 +1,10 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "PrimaryKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:12 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:12 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Adapter", "DataTypeName": "AdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:10 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:11 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Aug 30 15:07:11 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
index e084f41..016f3a9 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
@@ -1,68 +1,69 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FunctionParams_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "FunctionName", "FieldType": "string" }, { "FieldName": "FunctionArity", "FieldType": "string" }, { "FieldName": "FunctionParams", "FieldType": "Field_FunctionParams_in_FunctionRecordType" }, { "FieldName": "FunctionBody", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "AdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Thu Aug 30 15:15:48 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
index efdf0bb..1f9a865 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
@@ -1,15 +1,16 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Adapter", "IndexName": "Adapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "IsPrimary": true, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:16:00 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "IsPrimary": false, "Timestamp": "Thu Aug 30 16:15:59 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata-transactions/init-state-queries.txt b/asterix-app/src/test/resources/metadata-transactions/init-state-queries.txt
index 5359017..c9ef6ee 100644
--- a/asterix-app/src/test/resources/metadata-transactions/init-state-queries.txt
+++ b/asterix-app/src/test/resources/metadata-transactions/init-state-queries.txt
@@ -1 +1 @@
-customers_orders.aql
\ No newline at end of file
+customers_orders.aql
diff --git a/asterix-app/src/test/resources/metadata-transactions/init-state-queries/customers_orders.aql b/asterix-app/src/test/resources/metadata-transactions/init-state-queries/customers_orders.aql
index af15a23..87aa2fc 100644
--- a/asterix-app/src/test/resources/metadata-transactions/init-state-queries/customers_orders.aql
+++ b/asterix-app/src/test/resources/metadata-transactions/init-state-queries/customers_orders.aql
@@ -44,10 +44,10 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType)
-  partitioned by key cid, name on group1;
+  primary key cid, name on group1;
 
 create dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 create index ordCustId on Orders(cid);
 
diff --git a/asterix-app/src/test/resources/metadata-transactions/queries/create_duplicate_dataset.aql b/asterix-app/src/test/resources/metadata-transactions/queries/create_duplicate_dataset.aql
index 047eddf..b5c3c28 100644
--- a/asterix-app/src/test/resources/metadata-transactions/queries/create_duplicate_dataset.aql
+++ b/asterix-app/src/test/resources/metadata-transactions/queries/create_duplicate_dataset.aql
@@ -1,4 +1,4 @@
 use dataverse custord;
 
 create dataset Customers(CustomerType)
-  partitioned by key cid, name on group1;
+  primary key cid, name on group1;
diff --git a/asterix-app/src/test/resources/metadata-transactions/queries/rollback_drop_dataset.aql b/asterix-app/src/test/resources/metadata-transactions/queries/rollback_drop_dataset.aql
index 860a714..8dfe072 100644
--- a/asterix-app/src/test/resources/metadata-transactions/queries/rollback_drop_dataset.aql
+++ b/asterix-app/src/test/resources/metadata-transactions/queries/rollback_drop_dataset.aql
@@ -1,3 +1,5 @@
+drop dataverse custord if exists;
+create dataverse custord;
 use dataverse custord;
 
 drop dataset Customers;
diff --git a/asterix-app/src/test/resources/metadata-transactions/queries/rollback_new_dataset.aql b/asterix-app/src/test/resources/metadata-transactions/queries/rollback_new_dataset.aql
index aa76ae2..a9ad490 100644
--- a/asterix-app/src/test/resources/metadata-transactions/queries/rollback_new_dataset.aql
+++ b/asterix-app/src/test/resources/metadata-transactions/queries/rollback_new_dataset.aql
@@ -2,7 +2,7 @@
 
 // Creating this dataset should succeed.
 create dataset NewDataset(CustomerType)
-  partitioned by key cid, name on group1;
+  primary key cid, name on group1;
 
 
 // Creating this duplicate type should fail, and rollback should remove the new dataverse.
diff --git a/asterix-app/src/test/resources/metadata/queries.txt b/asterix-app/src/test/resources/metadata/queries.txt
deleted file mode 100644
index fedfeb6..0000000
--- a/asterix-app/src/test/resources/metadata/queries.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-metadata_dataverse.aql
-metadata_dataset.aql
-metadata_index.aql
-metadata_datatype.aql
-metadata_node.aql
-metadata_nodegroup.aql
-custord_q1.aql
-custord_q2.aql
-custord_q3.aql
-custord_q4.aql
-custord_dataverse.aql
-custord_dataset.aql
-custord_index.aql
-custord_datatype.aql
-custord_nodegroup.aql
-custord_q5.aql
-exceptions.aql
-custord_q7.aql
-custord_q8.aql
-metadata_dataverse.aql
-metadata_dataset.aql
-metadata_index.aql
-metadata_datatype.aql
-metadata_node.aql
-metadata_nodegroup.aql
-custord_q9.aql
-custord_q10.aql
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.1.ddl.aql
new file mode 100644
index 0000000..eef69a3
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(  cardinality  =   2000);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.2.update.aql
new file mode 100644
index 0000000..a944d98
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.3.query.aql
new file mode 100644
index 0000000..b8a7827
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.ddl.aql
new file mode 100644
index 0000000..bb57375
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : create a dataset providing a valid hint and do not use any whitespace
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(cardinality=2000);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.2.update.aql
new file mode 100644
index 0000000..7963cc5
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : create a dataset providing a valid hint and do not use any whitespace
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.3.query.aql
new file mode 100644
index 0000000..f6520a7
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing a valid hint and do not use any whitespace
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.ddl.aql
new file mode 100644
index 0000000..5941417
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : create a dataset providing  hint (in upper case)
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(CARDINALITY=2000);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.2.update.aql
new file mode 100644
index 0000000..5c8806a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : create a dataset providing  hint (in upper case)
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.3.query.aql
new file mode 100644
index 0000000..bd6abfb
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing  hint (in upper case)
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.ddl.aql
new file mode 100644
index 0000000..e6ffa31
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset without providing any hints.
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.2.update.aql
new file mode 100644
index 0000000..4d55d7e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : create a dataset without providing any hints.
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.3.query.aql
new file mode 100644
index 0000000..68f96f7
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : create a dataset without providing any hints.
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.1.ddl.aql
new file mode 100644
index 0000000..29fe385
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create dataverse & query Metadata dataset Dataverse to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.2.update.aql
new file mode 100644
index 0000000..820371a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create dataverse & query Metadata dataset Dataverse to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.3.query.aql
new file mode 100644
index 0000000..ea0fea7
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta01/meta01.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create dataverse & query Metadata dataset Dataverse to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+
+for $l in dataset('Metadata.Dataverse')
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.1.ddl.aql
new file mode 100644
index 0000000..fab979a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create dataset & query Metadata dataset Dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
+create type testdv.testtype as open {
+id : int32
+}
+
+create dataset testdv.dst01(testtype) primary key id;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.2.update.aql
new file mode 100644
index 0000000..400cc3f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create dataset & query Metadata dataset Dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.3.query.aql
new file mode 100644
index 0000000..14ee97e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta02/meta02.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create dataset & query Metadata dataset Dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName = 'testdv' and $l.DatasetName = 'dst01'
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.1.ddl.aql
new file mode 100644
index 0000000..edeaebf
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.1.ddl.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create closed type &  query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
+create type testdv.testtype as closed {
+id : int32
+}
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.2.update.aql
new file mode 100644
index 0000000..125f63b
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create closed type &  query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.3.query.aql
new file mode 100644
index 0000000..9861b7f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta03/meta03.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create closed type &  query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+
+for $l in dataset('Metadata.Datatype')
+where $l.DataverseName='testdv' and $l.DatatypeName='testtype'
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.1.ddl.aql
new file mode 100644
index 0000000..77c2793
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.1.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create open type & query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
+create type testdv.testtype as open {
+id : int32
+}
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.2.update.aql
new file mode 100644
index 0000000..14bdd4d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create open type & query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.3.query.aql
new file mode 100644
index 0000000..86c7695
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta04/meta04.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create open type & query Metadata dataset Datatype to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+
+for $l in dataset('Metadata.Datatype')
+where $l.DataverseName='testdv' and $l.DatatypeName='testtype'
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.1.ddl.aql
new file mode 100644
index 0000000..de290c9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : Create primary & secondary indexes & query Metadata dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
+create type testdv.testtype as open {
+id : int32,
+name : string
+}
+
+create dataset testdv.t1(testtype) primary key id;
+
+create index idx1 on testdv.t1(name);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.2.update.aql
new file mode 100644
index 0000000..7d65787
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create primary & secondary indexes & query Metadata dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.3.query.aql
new file mode 100644
index 0000000..f3459ef
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta05/meta05.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create primary & secondary indexes & query Metadata dataset to verify.
+ * Expected Res : Success
+ * Date         : 15 Sep 2012
+ */
+
+for $l in dataset('Metadata.Index')
+where $l.DataverseName='testdv' 
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.1.ddl.aql
new file mode 100644
index 0000000..9fa0cb2
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.1.ddl.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create AQL bodied UDFs and verify that there are related entries in metadata Function dataset
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse testdv if exists;
+create dataverse testdv;
+
+create function testdv.fun01(){
+"This is an AQL Bodied UDF"
+}
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.2.update.aql
new file mode 100644
index 0000000..0478520
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create AQL bodied UDFs and verify that there are related entries in metadata Function dataset
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.3.query.aql
new file mode 100644
index 0000000..ee7bce6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta06/meta06.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create AQL bodied UDFs and verify that there are related entries in metadata Function dataset
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+for $l in dataset('Metadata.Function')
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.1.ddl.aql
new file mode 100644
index 0000000..a64a472
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Verify default entries for Node dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.2.update.aql
new file mode 100644
index 0000000..9c447ca
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Verify default entries for Node dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.3.query.aql
new file mode 100644
index 0000000..35d13ed
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta07/meta07.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Verify default entries for Node dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+// Please note this query was run on two nodes, i.e; two NCs
+
+for $l in dataset('Metadata.Node')
+return $l
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.1.ddl.aql
new file mode 100644
index 0000000..e12e830
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description  : Verify default entries for Nodegroup dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.2.update.aql
new file mode 100644
index 0000000..fbbbb07
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Verify default entries for Nodegroup dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.3.query.aql
new file mode 100644
index 0000000..b621d68
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta08/meta08.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Verify default entries for Nodegroup dataset in Metadata dataverse
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+// Please note this query was run on two nodes, i.e; two NCs
+
+for $l in dataset('Metadata.Nodegroup')
+return $l
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.1.ddl.aql
new file mode 100644
index 0000000..f7ebffc
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create internal dataset, insert data and query metadata Dataset to verify entries for that dataset.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+create type test.testtype as open {
+id:int32
+}
+
+create dataset test.t1(testtype) primary key id;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.2.update.aql
new file mode 100644
index 0000000..23e7663
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.2.update.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : Create internal dataset, insert data and query metadata Dataset to verify entries for that dataset.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+use dataverse test;
+
+insert into dataset test.t1({"id":123});
+insert into dataset test.t1({"id":133});
+insert into dataset test.t1({"id":223});
+insert into dataset test.t1({"id":127});
+insert into dataset test.t1({"id":423});
+insert into dataset test.t1({"id":183});
+insert into dataset test.t1({"id":193});
+insert into dataset test.t1({"id":129});
+insert into dataset test.t1({"id":373});
+insert into dataset test.t1({"id":282});
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.3.query.aql
new file mode 100644
index 0000000..dbe75bd
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta09/meta09.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create internal dataset, insert data and query metadata Dataset to verify entries for that dataset.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='test' and $l.DatasetName='t1'
+return $l
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.1.ddl.aql
new file mode 100644
index 0000000..3fc8148
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.1.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create dataverse and drop that dataverse and verify dataverse entries in metadata
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+drop dataverse test if exists;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.2.update.aql
new file mode 100644
index 0000000..3431e80
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create dataverse and drop that dataverse and verify dataverse entries in metadata
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.3.query.aql
new file mode 100644
index 0000000..121c1a9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta10/meta10.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create dataverse and drop that dataverse and verify dataverse entries in metadata
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+
+count(
+for $l in dataset('Metadata.Dataverse')
+where $l.DataverseName='test'
+return $l
+)
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.1.ddl.aql
new file mode 100644
index 0000000..f0a8f31
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : Create dataset and drop that dataset and query Metadata Dataset to verify the drop.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+create type test.testtype as open {
+id : int32
+}
+
+create dataset test.dst01(testtype) primary key id;
+
+drop dataset test.dst01;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.2.update.aql
new file mode 100644
index 0000000..457bdb4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create dataset and drop that dataset and query Metadata Dataset to verify the drop.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.3.query.aql
new file mode 100644
index 0000000..59c07eb
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta11/meta11.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create dataset and drop that dataset and query Metadata Dataset to verify the drop.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+count(
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='test' and $l.DatasetName='dst01'
+return $l
+)
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.1.ddl.aql
new file mode 100644
index 0000000..70029c9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Create secondary index and drop the secondary index and query metadata to verify drop index.
+ * Expected Res : Success 
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+create type test.testtype as open {
+id : int32,
+name : string
+}
+
+create dataset test.dst01(testtype) primary key id;
+
+create index idx1 on test.dst01(name);
+
+drop index test.dst01.idx1;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.2.update.aql
new file mode 100644
index 0000000..3a94348
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create secondary index and drop the secondary index and query metadata to verify drop index.
+ * Expected Res : Success 
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.3.query.aql
new file mode 100644
index 0000000..c451c1c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta12/meta12.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create secondary index and drop the secondary index and query metadata to verify drop index.
+ * Expected Res : Success 
+ * Date         : Sep 17 2012
+ */
+
+for $l in dataset('Metadata.Index')
+where $l.DatasetName = 'dst01'
+return $l
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.1.ddl.aql
new file mode 100644
index 0000000..e6b832f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description  : Create functions and drop that function and query metadata 
+ *              : to verify entries in Function dataset for the dropped UDF.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+create function test.foo(){
+"drop this function"
+}
+
+drop function test.foo@0;
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.2.update.aql
new file mode 100644
index 0000000..70e8f18
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create functions and drop that function and query metadata 
+ *              : to verify entries in Function dataset for the dropped UDF.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.3.query.aql
new file mode 100644
index 0000000..ffbe42d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta13/meta13.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create functions and drop that function and query metadata 
+ *              : to verify entries in Function dataset for the dropped UDF.
+ * Expected Res : Success
+ * Date         : Sep 17 2012
+ */
+
+count(
+for $l in dataset('Metadata.Function')
+where $l.DataverseName='test' and $l.Name='foo' and $l.Arity=0
+return $l);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.1.ddl.aql
new file mode 100644
index 0000000..c76350b
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description      :  Test that a synthetically created content type is dropped with its parent type. 
+ *                     Guards against regression to issue 188.
+ * Expected Result  :  Success
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type FooType as closed {
+   bar: int32?
+};
+
+drop type FooType;
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.2.update.aql
new file mode 100644
index 0000000..633af93
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test that a synthetically created content type is dropped with its parent type. 
+ *                     Guards against regression to issue 188.
+ * Expected Result  :  Success
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.3.query.aql
new file mode 100644
index 0000000..eb98ab1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta14/meta14.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description      :  Test that a synthetically created content type is dropped with its parent type. 
+ *                     Guards against regression to issue 188.
+ * Expected Result  :  Success
+ */
+
+count(
+for $x in dataset('Metadata.Datatype')
+where $x.DataverseName='test'
+return $x
+)
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.1.ddl.aql
new file mode 100644
index 0000000..896d12a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Query Metadata dataset Adapter to verify to contents.
+ * Expected Res : Success
+ * Date         : 25 Nov 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.2.update.aql
new file mode 100644
index 0000000..aa03437
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Query Metadata dataset Adapter to verify to contents.
+ * Expected Res : Success
+ * Date         : 25 Nov 2012
+ */
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.3.query.aql
new file mode 100644
index 0000000..dc11189
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta15/meta15.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Query Metadata dataset Adapter to verify to contents.
+ * Expected Res : Success
+ * Date         : 25 Nov 2012
+ */
+
+for $l in dataset('Metadata.DatasourceAdapter')
+return $l
+
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.1.ddl.aql
similarity index 100%
rename from asterix-app/src/test/resources/aqljts/ignore.txt
rename to asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.3.query.aql
new file mode 100644
index 0000000..bbc08e8
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta16/meta16.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse Metadata;
+
+for $c in dataset('Dataset')
+return $c
+
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.3.query.aql
new file mode 100644
index 0000000..b1e3979
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta17/meta17.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+
+for $c in dataset('Datatype')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.3.query.aql
new file mode 100644
index 0000000..5232cbf
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta18/meta18.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+
+for $c in dataset('Dataverse')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.3.query.aql
new file mode 100644
index 0000000..d513a28
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta19/meta19.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse Metadata;
+
+for $c in dataset('Index')
+where $c.DataverseName='Metadata'
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.3.query.aql
new file mode 100644
index 0000000..701b069
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta20/meta20.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;    
+
+for $c in dataset('Node')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.3.query.aql
new file mode 100644
index 0000000..d2c69e5
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/meta21/meta21.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+
+for $c in dataset('Nodegroup')
+return $c
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.1.ddl.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.1.ddl.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.3.query.aql
new file mode 100644
index 0000000..bbc08e8
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataset/metadata_dataset.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse Metadata;
+
+for $c in dataset('Dataset')
+return $c
+
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.3.query.aql
new file mode 100644
index 0000000..1f19f84
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_datatype/metadata_datatype.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+     
+for $c in dataset('Datatype')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.3.query.aql
new file mode 100644
index 0000000..5232cbf
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_dataverse/metadata_dataverse.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+
+for $c in dataset('Dataverse')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.3.query.aql
new file mode 100644
index 0000000..d513a28
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_index/metadata_index.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse Metadata;
+
+for $c in dataset('Index')
+where $c.DataverseName='Metadata'
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.3.query.aql
new file mode 100644
index 0000000..701b069
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_node/metadata_node.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;    
+
+for $c in dataset('Node')
+return $c
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.1.ddl.aql
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.2.update.aql
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.3.query.aql
new file mode 100644
index 0000000..03db518
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/metadata_nodegroup/metadata_nodegroup.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse Metadata;
+     
+for $c in dataset('Nodegroup')
+return $c
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_dataset.aql b/asterix-app/src/test/resources/metadata/queries/custord_dataset.aql
deleted file mode 100644
index 530c6c9..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_dataset.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/custord_dataset.adm";
-
-for $c in dataset('Dataset')
-where $c.DataverseName = "custord"
-return $c
-
-
-
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_datatype.aql b/asterix-app/src/test/resources/metadata/queries/custord_datatype.aql
deleted file mode 100644
index 1525b93..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_datatype.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/custord_datatype.adm";
-     
-for $c in dataset('Datatype')
-where $c.DataverseName = "custord"
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_dataverse.aql b/asterix-app/src/test/resources/metadata/queries/custord_dataverse.aql
deleted file mode 100644
index 277bf62..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_dataverse.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/custord_dataverse.adm";
-
-for $c in dataset('Dataverse')
-where $c.DataverseName = "custord"
-return $c
-
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_index.aql b/asterix-app/src/test/resources/metadata/queries/custord_index.aql
deleted file mode 100644
index 95450da..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_index.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/custord_index.adm";
-
-for $c in dataset('Index')
-where $c.DataverseName = "custord"
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_nodegroup.aql b/asterix-app/src/test/resources/metadata/queries/custord_nodegroup.aql
deleted file mode 100644
index 090c739..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_nodegroup.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_nodegroup.adm";
-     
-for $c in dataset('Nodegroup')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q1.aql b/asterix-app/src/test/resources/metadata/queries/custord_q1.aql
deleted file mode 100644
index 4ba02b9..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q1.aql
+++ /dev/null
@@ -1,65 +0,0 @@
-drop dataverse custord if exists;
-
-create dataverse custord;
-
-use dataverse custord;
-
-create type StreetType as closed {
-  number: int32?,
-  name: string
-}
-
-create type AddressType as open {
-  street: StreetType,
-  city: string,
-  state: string,
-  zip: int16
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: {{string}},
-  children: [ {
-             name : string,
-             dob : string
-             } ]
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [ {
-       number: int64,
-       storeIds: {{int8}} 
-       } ]
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Customers(CustomerType)
-  partitioned by key cid, name on group1;
-
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/metadata/customerData.json"),("format"="adm"));
-        
-create dataset Orders(OrderType)
-  partitioned by key oid on group1;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/metadata/orderData.json"),("format"="adm"));
-
-create index ordCustId if not exists on Orders(cid);
-
-create index custName if not exists on Customers(name, cid);
-
-create index ordClerkTotal if not exists on Orders(clerk, total);
-  
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q10.aql b/asterix-app/src/test/resources/metadata/queries/custord_q10.aql
deleted file mode 100644
index abe6041..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q10.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/custord_q10.adm";
-
-for $c in dataset('Dataset')
-return $c
-
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q2.aql b/asterix-app/src/test/resources/metadata/queries/custord_q2.aql
deleted file mode 100644
index d99bed6..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q2.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse custord;
-     
-write output to nc1:"rttest/custord_q2.adm";
-      
-for $c in dataset('Customers')
-return $c.address
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q3.aql b/asterix-app/src/test/resources/metadata/queries/custord_q3.aql
deleted file mode 100644
index c093baa..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q3.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse custord;
-
-write output to nc1:"rttest/custord_q3.adm";
-      
-for $o in dataset('Orders')
-return {"id" : $o.oid, "total": $o.total} 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q4.aql b/asterix-app/src/test/resources/metadata/queries/custord_q4.aql
deleted file mode 100644
index 03114b7..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q4.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-use dataverse custord;
-
-write output to nc1:"rttest/custord_q4.adm";
-
-for $c in dataset('Customers')
-for $o in dataset('Orders')
-where $c.cid = $o.cid 
-return {"cust_name":$c.name, "cust_age": $c.age, "order_total":$o.total} 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q5.aql b/asterix-app/src/test/resources/metadata/queries/custord_q5.aql
deleted file mode 100644
index 716cce7..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q5.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop nodegroup fuzzynodegroup if exists;
-
-drop dataverse fuzzyjoin if exists;
-
-use dataverse custord;
-
-create dataset Customers if not exists (CustomerType)
-  partitioned by key cid, name on group1;
-  
-drop dataset employees if exists;
-
-create index custName if not exists on Customers(name, cid);
-
-drop index Customers.custAddress if exists;
-
-create type StreetType if not exists as closed {
-  number: int32?,
-  name: string
-}
-
-drop type DBLPType if exists;
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q6.aql b/asterix-app/src/test/resources/metadata/queries/custord_q6.aql
deleted file mode 100644
index 231c410..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q6.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse custord;
-
-drop index Orders.ordClerkTotal;
-
-drop dataset Orders;
-
-drop type OrderType;
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q7.aql b/asterix-app/src/test/resources/metadata/queries/custord_q7.aql
deleted file mode 100644
index 247ed78..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q7.aql
+++ /dev/null
@@ -1,2 +0,0 @@
-drop dataverse custord;
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q8.aql b/asterix-app/src/test/resources/metadata/queries/custord_q8.aql
deleted file mode 100644
index bb4225d..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q8.aql
+++ /dev/null
@@ -1,2 +0,0 @@
-drop nodegroup group1;
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/custord_q9.aql b/asterix-app/src/test/resources/metadata/queries/custord_q9.aql
deleted file mode 100644
index 2d3f960..0000000
--- a/asterix-app/src/test/resources/metadata/queries/custord_q9.aql
+++ /dev/null
@@ -1,52 +0,0 @@
-drop dataverse custord if exists;
-
-create dataverse custord;
-
-use dataverse custord;
-
-create type StreetType as closed {
-  number: int32?,
-  name: string
-}
-
-create type AddressType as open {
-  street: StreetType,
-  city: string,
-  state: string,
-  zip: int16
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: {{string}},
-  children: [ {
-             name : string,
-             dob : string
-             } ]
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [ {
-       number: int64,
-       storeIds: {{int8}} 
-       } ]
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter"
-      (("hdfs"="hdfs://temp1/data1"),("n1"="v1"),("n2"="v2"), ("n3"="v3"));
-  
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1:///tmp1/data1,nc2:///tmp2/data2"));
-
-
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset.aql
new file mode 100644
index 0000000..4cce09a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset.aql
@@ -0,0 +1 @@
+drop dataset DBLP;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset/exception_drop_dataset.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset/exception_drop_dataset.1.ddl.aql
new file mode 100644
index 0000000..4cce09a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataset/exception_drop_dataset.1.ddl.aql
@@ -0,0 +1 @@
+drop dataset DBLP;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse.aql
new file mode 100644
index 0000000..b92618e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse.aql
@@ -0,0 +1 @@
+drop dataverse fuzzyjoin;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse/exception_drop_dataverse.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse/exception_drop_dataverse.1.ddl.aql
new file mode 100644
index 0000000..b92618e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_dataverse/exception_drop_dataverse.1.ddl.aql
@@ -0,0 +1 @@
+drop dataverse fuzzyjoin;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index.aql
new file mode 100644
index 0000000..386a71d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index.aql
@@ -0,0 +1 @@
+drop index Cust.ord;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index/exception_drop_index.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index/exception_drop_index.1.ddl.aql
new file mode 100644
index 0000000..386a71d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_index/exception_drop_index.1.ddl.aql
@@ -0,0 +1 @@
+drop index Cust.ord;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup.aql
new file mode 100644
index 0000000..664f52f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup.aql
@@ -0,0 +1 @@
+drop nodegroup group1;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup/exception_drop_nodegroup.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup/exception_drop_nodegroup.1.ddl.aql
new file mode 100644
index 0000000..664f52f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_nodegroup/exception_drop_nodegroup.1.ddl.aql
@@ -0,0 +1 @@
+drop nodegroup group1;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1.aql
new file mode 100644
index 0000000..4c6c7ae
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1.aql
@@ -0,0 +1 @@
+drop type AddressType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1/exception_drop_type1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1/exception_drop_type1.1.ddl.aql
new file mode 100644
index 0000000..4c6c7ae
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type1/exception_drop_type1.1.ddl.aql
@@ -0,0 +1 @@
+drop type AddressType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2.aql
new file mode 100644
index 0000000..b97b812
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2.aql
@@ -0,0 +1 @@
+drop type CustomerType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2/exception_drop_type2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2/exception_drop_type2.1.ddl.aql
new file mode 100644
index 0000000..b97b812
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type2/exception_drop_type2.1.ddl.aql
@@ -0,0 +1 @@
+drop type CustomerType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3.aql
new file mode 100644
index 0000000..3812745
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3.aql
@@ -0,0 +1 @@
+drop type StreetType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3/exception_drop_type3.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3/exception_drop_type3.1.ddl.aql
new file mode 100644
index 0000000..3812745
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/exception_drop_type3/exception_drop_type3.1.ddl.aql
@@ -0,0 +1 @@
+drop type StreetType;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1.aql
new file mode 100644
index 0000000..f4547d6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Dataset
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Dataset;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1/issue_239_drop_system_dataset_1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1/issue_239_drop_system_dataset_1.1.ddl.aql
new file mode 100644
index 0000000..f4547d6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_1/issue_239_drop_system_dataset_1.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Dataset
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Dataset;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2.aql
new file mode 100644
index 0000000..d62bb49
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Dataset
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Dataverse;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2/issue_239_drop_system_dataset_2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2/issue_239_drop_system_dataset_2.1.ddl.aql
new file mode 100644
index 0000000..d62bb49
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_2/issue_239_drop_system_dataset_2.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Dataset
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Dataverse;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3.aql
new file mode 100644
index 0000000..96dd8cc
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Nodegroup
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Nodegroup;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3/issue_239_drop_system_dataset_3.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3/issue_239_drop_system_dataset_3.1.ddl.aql
new file mode 100644
index 0000000..96dd8cc
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_3/issue_239_drop_system_dataset_3.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Nodegroup
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Nodegroup;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4.aql
new file mode 100644
index 0000000..7685427
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Index
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Index;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4/issue_239_drop_system_dataset_4.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4/issue_239_drop_system_dataset_4.1.ddl.aql
new file mode 100644
index 0000000..7685427
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_4/issue_239_drop_system_dataset_4.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Index
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Index;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5.aql
new file mode 100644
index 0000000..5e6e468
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.DatasourceAdapter
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.DatasourceAdapter;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5/issue_239_drop_system_dataset_5.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5/issue_239_drop_system_dataset_5.1.ddl.aql
new file mode 100644
index 0000000..5e6e468
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_5/issue_239_drop_system_dataset_5.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.DatasourceAdapter
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.DatasourceAdapter;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6.aql
new file mode 100644
index 0000000..0eb863f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Function
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Function;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6/issue_239_drop_system_dataset_6.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6/issue_239_drop_system_dataset_6.1.ddl.aql
new file mode 100644
index 0000000..0eb863f
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_6/issue_239_drop_system_dataset_6.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Function
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Function;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7.aql
new file mode 100644
index 0000000..6794d04
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Datatype
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Datatype;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7/issue_239_drop_system_dataset_7.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7/issue_239_drop_system_dataset_7.1.ddl.aql
new file mode 100644
index 0000000..6794d04
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_7/issue_239_drop_system_dataset_7.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Datatype
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Datatype;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8.aql
new file mode 100644
index 0000000..d75e27a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Node
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Node;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8/issue_239_drop_system_dataset_8.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8/issue_239_drop_system_dataset_8.1.ddl.aql
new file mode 100644
index 0000000..d75e27a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_239_drop_system_dataset_8/issue_239_drop_system_dataset_8.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Drop a system dataset- Metadata.Node
+ * Expected Res : Failure
+ * Date         : 13 Jan 2013
+ * Issue        : 239
+ */
+
+drop dataset Metadata.Node;
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1.aql
new file mode 100644
index 0000000..eb3f3dc
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset providing invalid hints
+ * Expected Res : Failure
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(size=2000,tuple_size=100);
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1/issue_251_dataset_hint_error_1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1/issue_251_dataset_hint_error_1.1.ddl.aql
new file mode 100644
index 0000000..eb3f3dc
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1/issue_251_dataset_hint_error_1.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset providing invalid hints
+ * Expected Res : Failure
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(size=2000,tuple_size=100);
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2.aql
new file mode 100644
index 0000000..830370e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2.aql
@@ -0,0 +1,24 @@
+/*
+ * Description  : create a dataset providingi an invalid value for a hint and an unknown hint
+ * Expected Res : Failure
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(cardinality="-20jh0",size=45);
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.1.ddl.aql
new file mode 100644
index 0000000..4478693
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Description  : create a dataset providingi an invalid value for a hint and an unknown hint
+ * Expected Res : Failure
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as open {
+  id:int32,
+  text: string
+}
+
+create dataset Book(LineType)
+primary key id
+hints(cardinality="-20jh0",size=45);
+
diff --git a/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.2.query.aql b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.2.query.aql
new file mode 100644
index 0000000..a1bb05e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2/issue_251_dataset_hint_error_2.2.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providingi an invalid value for a hint and an unknown hint
+ * Expected Res : Failure
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+use dataverse Metadata;
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/exceptions.aql b/asterix-app/src/test/resources/metadata/queries/exceptions.aql
deleted file mode 100644
index b6ec188..0000000
--- a/asterix-app/src/test/resources/metadata/queries/exceptions.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-// Each statement (except for the second "use" statement) should throw an exception.
-
-//drop nodegroup group1;
-
-//drop dataverse fuzzyjoin;
-
-//use dataverse fuzzy;
-
-//use dataverse custord;
-
-//drop index Cust.ord;
-
-//drop index Customers.ord;
-
-//drop type AddressType;
-
-//drop type CustomerType;
-
-//drop type StreetType;
-
-//drop dataset DBLP;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql b/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql
deleted file mode 100644
index 723e65c..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_dataset.adm";
-
-for $c in dataset('Dataset')
-return $c
-
-
-
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_datatype.aql b/asterix-app/src/test/resources/metadata/queries/metadata_datatype.aql
deleted file mode 100644
index a144f4f..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_datatype.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_datatype.adm";
-     
-for $c in dataset('Datatype')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_dataverse.aql b/asterix-app/src/test/resources/metadata/queries/metadata_dataverse.aql
deleted file mode 100644
index e7e1249..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_dataverse.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_dataverse.adm";
-
-for $c in dataset('Dataverse')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_index.aql b/asterix-app/src/test/resources/metadata/queries/metadata_index.aql
deleted file mode 100644
index 6ff3185..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_index.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_index.adm";
-
-for $c in dataset('Index')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_node.aql b/asterix-app/src/test/resources/metadata/queries/metadata_node.aql
deleted file mode 100644
index ce28ac8..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_node.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;    
-
-write output to nc1:"rttest/metadata_node.adm";
-
-for $c in dataset('Node')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_nodegroup.aql b/asterix-app/src/test/resources/metadata/queries/metadata_nodegroup.aql
deleted file mode 100644
index 090c739..0000000
--- a/asterix-app/src/test/resources/metadata/queries/metadata_nodegroup.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse Metadata;
-
-write output to nc1:"rttest/metadata_nodegroup.adm";
-     
-for $c in dataset('Nodegroup')
-return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/regress_01_create_type.aql b/asterix-app/src/test/resources/metadata/queries/regress_01_create_type.aql
deleted file mode 100644
index e978572..0000000
--- a/asterix-app/src/test/resources/metadata/queries/regress_01_create_type.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-// Create a type in test dataverse.
-// This type will be referred to in a subsequent script.
-create type TestType as closed {
-  id: int32,
-  name: string
-}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/regress_02_refer_existing_type.aql b/asterix-app/src/test/resources/metadata/queries/regress_02_refer_existing_type.aql
deleted file mode 100644
index aeed866..0000000
--- a/asterix-app/src/test/resources/metadata/queries/regress_02_refer_existing_type.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-// Refer to existing type in test dataverse.
-create type UseTestType as closed {
-  test: TestType
-}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/regress_03_repeated_create_drop.aql b/asterix-app/src/test/resources/metadata/queries/regress_03_repeated_create_drop.aql
deleted file mode 100644
index 02009da..0000000
--- a/asterix-app/src/test/resources/metadata/queries/regress_03_repeated_create_drop.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type TypeOne as open {
-  f: int32
-}
-create nodegroup group1 if not exists on nc1, nc2;
-create dataset typeonedataset(TypeOne)
-partitioned by key f on group1;
-
-
-drop dataverse test if exists;  
-create dataverse test;
-use dataverse test;
-
-create type TypeTwo as open {
-  f: int32
-}
-create nodegroup group1 if not exists on nc1, nc2;
-create dataset typetwodataset(TypeTwo)
-partitioned by key f on group1;
-
-
-drop dataverse test if exists;  
-create dataverse test;
-use dataverse test;
-
-create type TypeThree as open {
-  f: int32
-}
-create nodegroup group1 if not exists on nc1, nc2;
-create dataset typethreedataset(TypeThree)
-partitioned by key f on group1;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success.aql b/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success.aql
new file mode 100644
index 0000000..5250eef
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success.aql
@@ -0,0 +1,54 @@
+/*
+ * Description  : Cause a failure by creating an existing type. Verify that rollback does not affect the pre-existing types.
+ *                Verification is done in a separate session (compilation unit).
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+drop dataverse custord if exists;
+
+create dataverse custord;
+
+use dataverse custord;
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
+
+create type AddressType as open {
+  street: StreetType,
+  city: string,
+  state: string,
+  zip: int16
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ {
+             name : string,
+             dob : string
+             } ]
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [ {
+       number: int64,
+       storeIds: {{int8}} 
+       } ]
+}
+
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success/failure_previous_success.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success/failure_previous_success.1.ddl.aql
new file mode 100644
index 0000000..5250eef
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/failure_previous_success/failure_previous_success.1.ddl.aql
@@ -0,0 +1,54 @@
+/*
+ * Description  : Cause a failure by creating an existing type. Verify that rollback does not affect the pre-existing types.
+ *                Verification is done in a separate session (compilation unit).
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+drop dataverse custord if exists;
+
+create dataverse custord;
+
+use dataverse custord;
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
+
+create type AddressType as open {
+  street: StreetType,
+  city: string,
+  state: string,
+  zip: int16
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ {
+             name : string,
+             dob : string
+             } ]
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [ {
+       number: int64,
+       storeIds: {{int8}} 
+       } ]
+}
+
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution.aql b/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution.aql
new file mode 100644
index 0000000..19b87a2
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution.aql
@@ -0,0 +1,47 @@
+/*
+ * Description  : Create dataverse, types, nodegroup and a dataset. Cause exception by re-creating nodegroup. 
+ *                Subsequent statement(s) should not executed. This is verified in a separate session (compilation unit)
+ * Expected Res : Exception
+ * Date         : 24 Nov 2012
+ */
+drop dataverse custord if exists;
+
+create dataverse custord;
+
+use dataverse custord;
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
+
+create type AddressType as open {
+  street: StreetType,
+  city: string,
+  state: string,
+  zip: int16
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ {
+             name : string,
+             dob : string
+             } ]
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Customers(CustomerType)
+  primary key cid, name on group1;
+
+create nodegroup group1 on nc1, nc2;
+
+// the following statement should not get executed 
+// as the above statement causes an exception
+create index custName on Customers(name, cid);
+  
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution/failure_subsequent_no_execution.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution/failure_subsequent_no_execution.1.ddl.aql
new file mode 100644
index 0000000..19b87a2
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/failure_subsequent_no_execution/failure_subsequent_no_execution.1.ddl.aql
@@ -0,0 +1,47 @@
+/*
+ * Description  : Create dataverse, types, nodegroup and a dataset. Cause exception by re-creating nodegroup. 
+ *                Subsequent statement(s) should not executed. This is verified in a separate session (compilation unit)
+ * Expected Res : Exception
+ * Date         : 24 Nov 2012
+ */
+drop dataverse custord if exists;
+
+create dataverse custord;
+
+use dataverse custord;
+
+create type StreetType as closed {
+  number: int32?,
+  name: string
+}
+
+create type AddressType as open {
+  street: StreetType,
+  city: string,
+  state: string,
+  zip: int16
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ {
+             name : string,
+             dob : string
+             } ]
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Customers(CustomerType)
+  primary key cid, name on group1;
+
+create nodegroup group1 on nc1, nc2;
+
+// the following statement should not get executed 
+// as the above statement causes an exception
+create index custName on Customers(name, cid);
+  
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success.aql b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success.aql
new file mode 100644
index 0000000..351a9e4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Verify the state of the Metadata adter the failure caused in failure_previous_success.aql 
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+use dataverse custord;
+
+write output to nc1:"mdtest/transaction_verify_failure_previous_success.adm";
+
+for $x in dataset('Metadata.Datatype')
+where $x.DataverseName='custord'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success/verify_failure_previous_success.3.query.aql b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success/verify_failure_previous_success.3.query.aql
new file mode 100644
index 0000000..9bee569
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_previous_success/verify_failure_previous_success.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Verify the state of the Metadata adter the failure caused in failure_previous_success.aql 
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+
+use dataverse custord;
+
+for $x in dataset('Metadata.Datatype')
+where $x.DataverseName='custord'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution.aql b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution.aql
new file mode 100644
index 0000000..6505903
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Verify the state of the metadata after the failure caused by failure_subsequent_no_execution.aql
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+
+use dataverse custord;
+
+write output to nc1:"mdtest/transaction_verify_failure_subsequent_no_execution.adm";
+
+for $x in dataset('Metadata.Index')
+where $x.DataverseName='custord'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.3.query.aql b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.3.query.aql
new file mode 100644
index 0000000..6f27c72
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Verify the state of the metadata after the failure caused by failure_subsequent_no_execution.aql
+ * Expected Res : Success
+ * Date         : 24 Nov 2012
+ */
+
+use dataverse custord;
+
+for $x in dataset('Metadata.Index')
+where $x.DataverseName='custord'
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_1/issue_251_dataset_hint_1.1.adm
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2.adm
new file mode 100644
index 0000000..7c82b18
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{ { "Name": "CARDINALITY", "Value": "2000" } }}, "Timestamp": "Tue Jan 29 19:11:26 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.adm
new file mode 100644
index 0000000..7c82b18
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_2/issue_251_dataset_hint_2.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{ { "Name": "CARDINALITY", "Value": "2000" } }}, "Timestamp": "Tue Jan 29 19:11:26 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3.adm
new file mode 100644
index 0000000..f931b40
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{ { "Name": "CARDINALITY", "Value": "2000" } }}, "Timestamp": "Tue Jan 29 19:00:38 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.adm
new file mode 100644
index 0000000..f931b40
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_3/issue_251_dataset_hint_3.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{ { "Name": "CARDINALITY", "Value": "2000" } }}, "Timestamp": "Tue Jan 29 19:00:38 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4.adm
new file mode 100644
index 0000000..efd3a7e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:59:57 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.adm
new file mode 100644
index 0000000..efd3a7e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_251_dataset_hint_4/issue_251_dataset_hint_4.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Book", "DataTypeName": "LineType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:59:57 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta01.adm b/asterix-app/src/test/resources/metadata/results/basic/meta01.adm
new file mode 100644
index 0000000..e878a54
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta01.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Sat Nov 24 14:44:45 PST 2012" }
+{ "DataverseName": "testdv", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Sat Nov 24 14:45:14 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta01/meta01.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta01/meta01.1.adm
new file mode 100644
index 0000000..e878a54
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta01/meta01.1.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Sat Nov 24 14:44:45 PST 2012" }
+{ "DataverseName": "testdv", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Sat Nov 24 14:45:14 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta02.adm b/asterix-app/src/test/resources/metadata/results/basic/meta02.adm
new file mode 100644
index 0000000..394af5c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta02.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatasetName": "dst01", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:34 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta02/meta02.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta02/meta02.1.adm
new file mode 100644
index 0000000..394af5c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta02/meta02.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatasetName": "dst01", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:34 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta03.adm b/asterix-app/src/test/resources/metadata/results/basic/meta03.adm
new file mode 100644
index 0000000..df41a35
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta03.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatatypeName": "testtype", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "id", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Sep 17 23:18:30 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta03/meta03.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta03/meta03.1.adm
new file mode 100644
index 0000000..df41a35
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta03/meta03.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatatypeName": "testtype", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "id", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Sep 17 23:18:30 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta04.adm b/asterix-app/src/test/resources/metadata/results/basic/meta04.adm
new file mode 100644
index 0000000..8f892be
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta04.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatatypeName": "testtype", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "id", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 14:27:13 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta04/meta04.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta04/meta04.1.adm
new file mode 100644
index 0000000..8f892be
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta04/meta04.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "DatatypeName": "testtype", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "id", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 14:27:13 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta05.adm b/asterix-app/src/test/resources/metadata/results/basic/meta05.adm
new file mode 100644
index 0000000..811e871
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta05.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "testdv", "DatasetName": "t1", "IndexName": "idx1", "IndexStructure": "BTREE", "SearchKey": [ "name" ], "IsPrimary": false, "Timestamp": "Mon Sep 17 23:21:46 PDT 2012" }
+{ "DataverseName": "testdv", "DatasetName": "t1", "IndexName": "t1", "IndexStructure": "BTREE", "SearchKey": [ "id" ], "IsPrimary": true, "Timestamp": "Mon Sep 17 23:21:46 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta05/meta05.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta05/meta05.1.adm
new file mode 100644
index 0000000..811e871
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta05/meta05.1.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "testdv", "DatasetName": "t1", "IndexName": "idx1", "IndexStructure": "BTREE", "SearchKey": [ "name" ], "IsPrimary": false, "Timestamp": "Mon Sep 17 23:21:46 PDT 2012" }
+{ "DataverseName": "testdv", "DatasetName": "t1", "IndexName": "t1", "IndexStructure": "BTREE", "SearchKey": [ "id" ], "IsPrimary": true, "Timestamp": "Mon Sep 17 23:21:46 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta06.adm b/asterix-app/src/test/resources/metadata/results/basic/meta06.adm
new file mode 100644
index 0000000..58f5b77
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta06.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "Name": "fun01", "Arity": "0", "Params": [  ], "ReturnType": "VOID", "Definition": "\"This is an AQL Bodied UDF\"", "Language": "AQL", "Kind": "SCALAR" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta06/meta06.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta06/meta06.1.adm
new file mode 100644
index 0000000..58f5b77
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta06/meta06.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "testdv", "Name": "fun01", "Arity": "0", "Params": [  ], "ReturnType": "VOID", "Definition": "\"This is an AQL Bodied UDF\"", "Language": "AQL", "Kind": "SCALAR" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta07.adm b/asterix-app/src/test/resources/metadata/results/basic/meta07.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta07.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta07/meta07.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta07/meta07.1.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta07/meta07.1.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta08.adm b/asterix-app/src/test/resources/metadata/results/basic/meta08.adm
new file mode 100644
index 0000000..cadf1c4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta08.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Mon Sep 17 12:31:45 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Mon Sep 17 12:31:45 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta08/meta08.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta08/meta08.1.adm
new file mode 100644
index 0000000..cadf1c4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta08/meta08.1.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Mon Sep 17 12:31:45 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Mon Sep 17 12:31:45 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta09.adm b/asterix-app/src/test/resources/metadata/results/basic/meta09.adm
new file mode 100644
index 0000000..9bcb2a4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta09.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "t1", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:55:25 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta09/meta09.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta09/meta09.1.adm
new file mode 100644
index 0000000..9bcb2a4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta09/meta09.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "t1", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:55:25 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta10.adm b/asterix-app/src/test/resources/metadata/results/basic/meta10.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta10.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta10/meta10.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta10/meta10.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta10/meta10.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta11.adm b/asterix-app/src/test/resources/metadata/results/basic/meta11.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta11.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta11/meta11.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta11/meta11.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta11/meta11.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta12.adm b/asterix-app/src/test/resources/metadata/results/basic/meta12.adm
new file mode 100644
index 0000000..6cf9685
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta12.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "dst01", "IndexName": "dst01", "IndexStructure": "BTREE", "SearchKey": [ "id" ], "IsPrimary": true, "Timestamp": "Mon Sep 17 23:40:44 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta12/meta12.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta12/meta12.1.adm
new file mode 100644
index 0000000..6cf9685
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta12/meta12.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "dst01", "IndexName": "dst01", "IndexStructure": "BTREE", "SearchKey": [ "id" ], "IsPrimary": true, "Timestamp": "Mon Sep 17 23:40:44 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta13.adm b/asterix-app/src/test/resources/metadata/results/basic/meta13.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta13.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta13/meta13.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta13/meta13.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta13/meta13.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta14.adm b/asterix-app/src/test/resources/metadata/results/basic/meta14.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta14.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta14/meta14.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta14/meta14.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta14/meta14.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta15.adm b/asterix-app/src/test/resources/metadata/results/basic/meta15.adm
new file mode 100644
index 0000000..4414ed0
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta15.adm
@@ -0,0 +1,6 @@
+{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm
new file mode 100644
index 0000000..4414ed0
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta15/meta15.1.adm
@@ -0,0 +1,6 @@
+{ "DataverseName": "Metadata", "Name": "cnn_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "hdfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "hive", "Classname": "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "localfs", "Classname": "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "pull_twitter", "Classname": "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
+{ "DataverseName": "Metadata", "Name": "rss_feed", "Classname": "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory", "Type": "INTERNAL", "Timestamp": "Sun Nov 25 20:55:22 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta16.adm b/asterix-app/src/test/resources/metadata/results/basic/meta16.adm
new file mode 100644
index 0000000..b56fe7c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta16.adm
@@ -0,0 +1,8 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm
new file mode 100644
index 0000000..b56fe7c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta16/meta16.1.adm
@@ -0,0 +1,8 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta17.adm b/asterix-app/src/test/resources/metadata/results/basic/meta17.adm
new file mode 100644
index 0000000..2de89a6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta17.adm
@@ -0,0 +1,60 @@
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
new file mode 100644
index 0000000..2de89a6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
@@ -0,0 +1,60 @@
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:30 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta18.adm b/asterix-app/src/test/resources/metadata/results/basic/meta18.adm
new file mode 100644
index 0000000..f6d8a37
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta18.adm
@@ -0,0 +1 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Sep 13 13:03:11 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta18/meta18.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta18/meta18.1.adm
new file mode 100644
index 0000000..61abc91
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta18/meta18.1.adm
@@ -0,0 +1,3 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:48 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "test", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:55 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "testdv", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:52 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta19.adm b/asterix-app/src/test/resources/metadata/results/basic/meta19.adm
new file mode 100644
index 0000000..607bfd1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta19.adm
@@ -0,0 +1,11 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm
new file mode 100644
index 0000000..607bfd1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta19/meta19.1.adm
@@ -0,0 +1,11 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta20.adm b/asterix-app/src/test/resources/metadata/results/basic/meta20.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta20.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta20/meta20.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta20/meta20.1.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta20/meta20.1.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta21.adm b/asterix-app/src/test/resources/metadata/results/basic/meta21.adm
new file mode 100644
index 0000000..d7e8460
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta21.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta21/meta21.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta21/meta21.1.adm
new file mode 100644
index 0000000..d7e8460
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta21/meta21.1.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm
new file mode 100644
index 0000000..8abc339
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset.adm
@@ -0,0 +1,8 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm
new file mode 100644
index 0000000..0078603
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataset/metadata_dataset.1.adm
@@ -0,0 +1,9 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm
new file mode 100644
index 0000000..b351cfb
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype.adm
@@ -0,0 +1,56 @@
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
new file mode 100644
index 0000000..84e2ca8
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
@@ -0,0 +1,60 @@
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Hints", "FieldType": "Field_Hints_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasourceAdapterRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Classname", "FieldType": "string" }, { "FieldName": "Type", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "Field_Hints_in_DatasetRecordType_ItemType", "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Hints_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Arity", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "DatasourceAdapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "Field_Function_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "interval", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse.adm
new file mode 100644
index 0000000..f6d8a37
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse.adm
@@ -0,0 +1 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Sep 13 13:03:11 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse/metadata_dataverse.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse/metadata_dataverse.1.adm
new file mode 100644
index 0000000..61abc91
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_dataverse/metadata_dataverse.1.adm
@@ -0,0 +1,3 @@
+{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:48 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "test", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:55 PDT 2013", "PendingOp": 0 }
+{ "DataverseName": "testdv", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Thu Apr 04 21:10:52 PDT 2013", "PendingOp": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm
new file mode 100644
index 0000000..607bfd1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_index.adm
@@ -0,0 +1,11 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm
new file mode 100644
index 0000000..607bfd1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_index/metadata_index.1.adm
@@ -0,0 +1,11 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "IndexName": "DatasourceAdapter", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name", "Arity" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_node.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_node.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_node.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_node/metadata_node.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_node/metadata_node.1.adm
new file mode 100644
index 0000000..f0a6e1d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_node/metadata_node.1.adm
@@ -0,0 +1,2 @@
+{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0 }
+{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0 }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup.adm
new file mode 100644
index 0000000..d7e8460
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup/metadata_nodegroup.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup/metadata_nodegroup.1.adm
new file mode 100644
index 0000000..d7e8460
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_nodegroup/metadata_nodegroup.1.adm
@@ -0,0 +1,2 @@
+{ "GroupName": "DEFAULT_NG_ALL_NODES", "NodeNames": {{ "nc1", "nc2" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
+{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Thu Sep 13 11:42:20 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord/custord_dataset.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_dataset.adm
new file mode 100644
index 0000000..ca2737c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/custord/custord_dataset.adm
@@ -0,0 +1,2 @@
+{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_datatype.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_datatype.adm
similarity index 100%
rename from asterix-app/src/test/resources/metadata/results/custord_datatype.adm
rename to asterix-app/src/test/resources/metadata/results/custord/custord_datatype.adm
diff --git a/asterix-app/src/test/resources/metadata/results/custord_dataverse.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_dataverse.adm
similarity index 100%
rename from asterix-app/src/test/resources/metadata/results/custord_dataverse.adm
rename to asterix-app/src/test/resources/metadata/results/custord/custord_dataverse.adm
diff --git a/asterix-app/src/test/resources/metadata/results/custord/custord_index.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_index.adm
new file mode 100644
index 0000000..06f6bd5
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/custord/custord_index.adm
@@ -0,0 +1,5 @@
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "IsPrimary": false, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "IsPrimary": true, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "IsPrimary": false, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "IsPrimary": false, "Timestamp": "Thu Sep 13 14:20:57 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_nodegroup.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_nodegroup.adm
similarity index 100%
rename from asterix-app/src/test/resources/metadata/results/custord_nodegroup.adm
rename to asterix-app/src/test/resources/metadata/results/custord/custord_nodegroup.adm
diff --git a/asterix-app/src/test/resources/metadata/results/custord/custord_q10.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_q10.adm
new file mode 100644
index 0000000..c0869bf
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/custord/custord_q10.adm
@@ -0,0 +1,9 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "PrimaryKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:12:43 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "EXTERNAL", "InternalDetails": null, "ExternalDetails": { "Adapter": "edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter", "Properties": [ { "Name": "n1", "Value": "v1" }, { "Name": "n3", "Value": "v3" }, { "Name": "n2", "Value": "v2" }, { "Name": "hdfs", "Value": "hdfs://temp1/data1" } ] }, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:13:43 PDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "EXTERNAL", "InternalDetails": null, "ExternalDetails": { "Adapter": "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter", "Properties": [ { "Name": "path", "Value": "nc1:///tmp1/data1,nc2:///tmp2/data2" } ] }, "FeedDetails": null, "Timestamp": "Thu Sep 13 15:13:43 PDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_q2.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_q2.adm
similarity index 100%
rename from asterix-app/src/test/resources/metadata/results/custord_q2.adm
rename to asterix-app/src/test/resources/metadata/results/custord/custord_q2.adm
diff --git a/asterix-app/src/test/resources/metadata/results/custord_q3.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_q3.adm
similarity index 100%
rename from asterix-app/src/test/resources/metadata/results/custord_q3.adm
rename to asterix-app/src/test/resources/metadata/results/custord/custord_q3.adm
diff --git a/asterix-app/src/test/resources/metadata/results/custord/custord_q4.adm b/asterix-app/src/test/resources/metadata/results/custord/custord_q4.adm
new file mode 100644
index 0000000..70255eb
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/custord/custord_q4.adm
@@ -0,0 +1,4 @@
+{ "cust_name": "Mike Rotruck", "cust_age": null, "order_total": 124.26f }
+{ "cust_name": "Mike Rotruck", "cust_age": null, "order_total": 97.20656f }
+{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 14.2326f }
+{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 7.206f }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_dataset.adm b/asterix-app/src/test/resources/metadata/results/custord_dataset.adm
deleted file mode 100644
index 68e8f41..0000000
--- a/asterix-app/src/test/resources/metadata/results/custord_dataset.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:45:33 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "Timestamp": "Mon Jul 11 09:30:35 PDT 2011" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/custord_index.adm b/asterix-app/src/test/resources/metadata/results/custord_index.adm
deleted file mode 100644
index 2e0f166..0000000
--- a/asterix-app/src/test/resources/metadata/results/custord_index.adm
+++ /dev/null
@@ -1,5 +0,0 @@
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "$Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "Timestamp": "Mon Jul 11 10:42:48 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "Timestamp": "Mon Jul 11 10:44:32 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "$Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "Timestamp": "Mon Jul 11 10:44:58 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "Timestamp": "Mon Jul 11 17:18:08 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "Timestamp": "Mon Jul 11 10:46:25 PDT 2011" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_q10.adm b/asterix-app/src/test/resources/metadata/results/custord_q10.adm
deleted file mode 100644
index ed1df70..0000000
--- a/asterix-app/src/test/resources/metadata/results/custord_q10.adm
+++ /dev/null
@@ -1,8 +0,0 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Tue Sep 06 09:29:34 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "EXTERNAL", "InternalDetails": null, "ExternalDetails": { "Adapter": "adapter.java", "HdfsPath": "hdfs://temp1/data1", "Splits": [  ], "Properties": [ { "Name": "n1", "Value": "v1" }, { "Name": "n3", "Value": "v3" }, { "Name": "n2", "Value": "v2" } ], "IsAtHdfs": true }, "Timestamp": "Mon Sep 12 17:07:35 PDT 2011" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "EXTERNAL", "InternalDetails": null, "ExternalDetails": { "Adapter": "adapter.java", "HdfsPath": "null", "Splits": [ { "NodeName": "nc1", "FileName": "/tmp1/data1" }, { "NodeName": "nc2", "FileName": "/tmp2/data2" } ], "Properties": [  ], "IsAtHdfs": false }, "Timestamp": "Mon Sep 12 17:08:14 PDT 2011" }
diff --git a/asterix-app/src/test/resources/metadata/results/custord_q4.adm b/asterix-app/src/test/resources/metadata/results/custord_q4.adm
deleted file mode 100644
index 652ad79..0000000
--- a/asterix-app/src/test/resources/metadata/results/custord_q4.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "cust_name": "Mike Rotruck", "cust_age": null, "order_total": 124.26f }
-{ "cust_name": "Mike Rotruck", "cust_age": null, "order_total": 97.20656f }
-{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 14.2326f }
-{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 7.206f }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm b/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm
deleted file mode 100644
index 85a8973..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm
+++ /dev/null
@@ -1,6 +0,0 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Tue Sep 06 09:29:34 PDT 2011" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_datatype.adm b/asterix-app/src/test/resources/metadata/results/metadata_datatype.adm
deleted file mode 100644
index 1ae69c3..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_datatype.adm
+++ /dev/null
@@ -1,49 +0,0 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Sep 06 08:42:36 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }\
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 15:54:21 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 19:02:47 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeStores_in_NodeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Sep 12 16:56:20 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Wed Sep 07 19:03:39 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Wed Sep 07 19:11:05 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Wed Sep 07 19:25:06 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 19:15:49 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Splits_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Splits_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Wed Sep 07 19:27:12 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Splits_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "FileName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 19:27:59 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" }, { "FieldName": "NodeStores", "FieldType": "Field_NodeStores_in_NodeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Sep 12 16:58:48 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "HdfsPath", "FieldType": "string" }, { "FieldName": "Splits", "FieldType": "Field_Splits_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "IsAtHdfs", "FieldType": "boolean" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 19:28:39 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Wed Sep 07 19:29:41 PDT 2011" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "line2d", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "point2d", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon2d", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Sun May 08 16:32:43 PDT 2011"  }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_dataverse.adm b/asterix-app/src/test/resources/metadata/results/metadata_dataverse.adm
deleted file mode 100644
index e7e194f..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_dataverse.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "DataverseName": "Metadata", "DataFormat": "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Tue Sep 06 09:27:54 PDT 2011" }
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_index.adm b/asterix-app/src/test/resources/metadata/results/metadata_index.adm
deleted file mode 100644
index a800f08..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_index.adm
+++ /dev/null
@@ -1,9 +0,0 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "$Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "$Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "$Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "$Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "$Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "$Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "Timestamp": "Sun May 08 16:32:43 PDT 2011"}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_node.adm b/asterix-app/src/test/resources/metadata/results/metadata_node.adm
deleted file mode 100644
index eaba201..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_node.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-{ "NodeName": "nc1", "NumberOfCores": 0, "WorkingMemorySize": 0, "NodeStores": [ "/tmp/nc1/" ] }
-{ "NodeName": "nc2", "NumberOfCores": 0, "WorkingMemorySize": 0, "NodeStores": [ "/tmp/nc2/" ] }
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_nodegroup.adm b/asterix-app/src/test/resources/metadata/results/metadata_nodegroup.adm
deleted file mode 100644
index d9e1bb0..0000000
--- a/asterix-app/src/test/resources/metadata/results/metadata_nodegroup.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "GroupName": "MetadataGroup", "NodeNames": {{ "nc1" }}, "Timestamp": "Tue Sep 06 17:10:32 PDT 2011" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success.adm b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success.adm
new file mode 100644
index 0000000..3d0da4d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success.adm
@@ -0,0 +1,13 @@
+{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success/verify_failure_previous_success.1.adm b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success/verify_failure_previous_success.1.adm
new file mode 100644
index 0000000..3d0da4d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_previous_success/verify_failure_previous_success.1.adm
@@ -0,0 +1,13 @@
+{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
+{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Sat Nov 24 17:20:04 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution.adm b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution.adm
new file mode 100644
index 0000000..7ba26bd
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution.adm
@@ -0,0 +1 @@
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Sat Nov 24 17:23:18 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.1.adm b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.1.adm
new file mode 100644
index 0000000..7ba26bd
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/transaction/verify_failure_subsequent_no_execution/verify_failure_subsequent_no_execution.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Sat Nov 24 17:23:18 PST 2012" }
diff --git a/asterix-app/src/test/resources/metadata/testsuite.xml b/asterix-app/src/test/resources/metadata/testsuite.xml
new file mode 100644
index 0000000..d4fb915
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/testsuite.xml
@@ -0,0 +1,236 @@
+<test-suite xmlns="urn:xml.testframework.asterix.ics.uci.edu" ResultOffsetPath="results" QueryOffsetPath="queries" QueryFileExtension=".aql">
+  <test-group name="basic">
+    <test-case FilePath="basic">
+      <compilation-unit name="meta01">
+        <output-dir compare="Text">meta01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta02">
+        <output-dir compare="Text">meta02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta03">
+        <output-dir compare="Text">meta03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta04">
+        <output-dir compare="Text">meta04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta05">
+        <output-dir compare="Text">meta05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta06">
+        <output-dir compare="Text">meta06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta07">
+        <output-dir compare="Text">meta07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta08">
+        <output-dir compare="Text">meta08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta09">
+        <output-dir compare="Text">meta09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta10">
+        <output-dir compare="Text">meta10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta11">
+        <output-dir compare="Text">meta11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta12">
+        <output-dir compare="Text">meta12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta13">
+        <output-dir compare="Text">meta13</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta14">
+        <output-dir compare="Text">meta14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta15">
+        <output-dir compare="Text">meta15</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta16">
+        <output-dir compare="Text">meta16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta17">
+        <output-dir compare="Text">meta17</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta18">
+        <output-dir compare="Text">meta18</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta19">
+        <output-dir compare="Text">meta19</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta20">
+        <output-dir compare="Text">meta20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="meta21">
+        <output-dir compare="Text">meta21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_dataset">
+        <output-dir compare="Text">metadata_dataset</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_dataverse">
+        <output-dir compare="Text">metadata_dataverse</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_datatype">
+        <output-dir compare="Text">metadata_datatype</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_index">
+        <output-dir compare="Text">metadata_index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_node">
+        <output-dir compare="Text">metadata_node</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="metadata_nodegroup">
+        <output-dir compare="Text">metadata_nodegroup</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_251_dataset_hint_2">
+        <output-dir compare="Text">issue_251_dataset_hint_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_251_dataset_hint_3">
+        <output-dir compare="Text">issue_251_dataset_hint_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_251_dataset_hint_4">
+        <output-dir compare="Text">issue_251_dataset_hint_4</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="exception">
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_1">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_2">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_3">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_4">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_5">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_6">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_7">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_239_drop_system_dataset_8">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_251_dataset_hint_error_1">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="exception">
+      <compilation-unit name="issue_251_dataset_hint_error_2">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="transaction">
+    <test-case FilePath="transaction">
+      <compilation-unit name="failure_previous_success">
+        <output-dir compare="Text">failure_previous_success</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_failure_previous_success">
+        <output-dir compare="Text">verify_failure_previous_success</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="transaction">
+      <compilation-unit name="failure_subsequent_no_execution">
+        <output-dir compare="Text">failure_subsequent_no_execution</output-dir>
+        <expected-error>MetadataException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_failure_subsequent_no_execution">
+        <output-dir compare="Text">verify_failure_subsequent_no_execution</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+</test-suite>
diff --git a/asterix-app/src/test/resources/misc/split01.aql b/asterix-app/src/test/resources/misc/split01.aql
index 46b2403..de9ec5c 100644
--- a/asterix-app/src/test/resources/misc/split01.aql
+++ b/asterix-app/src/test/resources/misc/split01.aql
@@ -30,9 +30,9 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/split01.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/all-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/all-drop.aql
index 13a0414..0672b32 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/all-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/all-drop.aql
@@ -36,6 +36,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset All(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset All;
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/all-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/all-load.aql
index 73fa096..745562d 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/all-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/all-load.aql
@@ -36,7 +36,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset All(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset All from nc1:"/home/yasser/Dropbox/Research/data/allData.json";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
index 7006eb4..1bd4b73 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/all-scan.aql
@@ -36,7 +36,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset All(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_all_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/cust-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/cust-drop.aql
index b6a1913..23aeea8 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/cust-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/cust-drop.aql
@@ -23,6 +23,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 drop dataset Customers;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/cust-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/cust-load.aql
index fb57584..4af623a 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/cust-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/cust-load.aql
@@ -17,7 +17,7 @@
 declare nodegroup group1 on nc1;
 
 declare dataset Dataverse(DataverseType)
-  partitioned by key dataverseName on group1;        
+  primary key dataverseName on group1;        
       
 for $c in dataset('Dataverse')
 return $c
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/cust-q1.aql b/asterix-app/src/test/resources/nontagged/custord/local/cust-q1.aql
index bc7ac1f..bc1c623 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/cust-q1.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/cust-q1.aql
@@ -23,7 +23,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_cust_q1.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/cust-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/cust-scan.aql
index a54197f..cf8aacf 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/cust-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/cust-scan.aql
@@ -23,7 +23,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_cust_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/emp-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/emp-drop.aql
index 22230c1..0499a72 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/emp-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/emp-drop.aql
@@ -24,6 +24,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Emp(EmpType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 drop dataset Emp;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/emp-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/emp-load.aql
index c0cbfc3..e676ef6 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/emp-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/emp-load.aql
@@ -20,6 +20,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Emp(EmpType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 load dataset Emp from nc1:"/home/yasser/Dropbox/Research/data/EmpData.json";
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/emp-q1.aql b/asterix-app/src/test/resources/nontagged/custord/local/emp-q1.aql
index 20b83f7..ef8ce90 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/emp-q1.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/emp-q1.aql
@@ -19,7 +19,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Emp(EmpType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_emp_q1.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/emp-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/emp-scan.aql
index df903bf..e69b361 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/emp-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/emp-scan.aql
@@ -20,7 +20,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Emp(EmpType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_emp_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/join-01.aql b/asterix-app/src/test/resources/nontagged/custord/local/join-01.aql
index d5a32f5..587fa4d 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/join-01.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/join-01.aql
@@ -34,9 +34,9 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_join_1.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/join-02.aql b/asterix-app/src/test/resources/nontagged/custord/local/join-02.aql
index 9b5caf1..ffcc6a0 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/join-02.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/join-02.aql
@@ -34,9 +34,9 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_join_2.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/join-03.aql b/asterix-app/src/test/resources/nontagged/custord/local/join-03.aql
index bff863c..a953d76 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/join-03.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/join-03.aql
@@ -34,9 +34,9 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_join_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/numeric-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/numeric-drop.aql
index b82bf84..a576214 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/numeric-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/numeric-drop.aql
@@ -15,6 +15,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Numeric(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
   
 drop dataset Numeric;
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/numeric-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/numeric-load.aql
index 5a7f162..491b391 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/numeric-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/numeric-load.aql
@@ -16,7 +16,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Numeric(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset Numeric from nc1:"/home/yasser/Dropbox/Research/data/numericData.json";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/numeric-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/numeric-scan.aql
index ec60095..c5bdb34 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/numeric-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/numeric-scan.aql
@@ -15,7 +15,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Numeric(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_numeric_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/ord-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/ord-drop.aql
index fd68e70..d4fa668 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/ord-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/ord-drop.aql
@@ -15,6 +15,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 drop dataset Orders;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/ord-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/ord-load.aql
index fe1d61d..81d25bc 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/ord-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/ord-load.aql
@@ -15,6 +15,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 load dataset Orders from nc1:"/home/yasser/Dropbox/Research/data/orderData.json";
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/ord-q1.aql b/asterix-app/src/test/resources/nontagged/custord/local/ord-q1.aql
index 97aa315..d008979 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/ord-q1.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/ord-q1.aql
@@ -15,7 +15,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_ord_q1.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/ord-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/ord-scan.aql
index e7c5236..9fc0faf 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/ord-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/ord-scan.aql
@@ -15,7 +15,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_ord_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/spatial-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/spatial-drop.aql
index 5e7b515..304ec7c 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/spatial-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/spatial-drop.aql
@@ -14,6 +14,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Spatial(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset Spatial;
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/spatial-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/spatial-load.aql
index b36808a..a0e7bae 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/spatial-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/spatial-load.aql
@@ -14,7 +14,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Spatial(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset Spatial from nc1:"/home/yasser/Dropbox/Research/data/spatialData.json";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/spatial-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/spatial-scan.aql
index e4faa16..5027c29 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/spatial-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/spatial-scan.aql
@@ -16,7 +16,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Spatial(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_spatial_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/temp-drop.aql b/asterix-app/src/test/resources/nontagged/custord/local/temp-drop.aql
index 80a86ac..df7e293 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/temp-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/temp-drop.aql
@@ -13,6 +13,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Temp(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset Temp;
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/temp-load.aql b/asterix-app/src/test/resources/nontagged/custord/local/temp-load.aql
index 0400db1..d75168a 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/temp-load.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/temp-load.aql
@@ -14,7 +14,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Temp(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset Temp from nc1:"/home/yasser/Dropbox/Research/data/tempData.json";
 
diff --git a/asterix-app/src/test/resources/nontagged/custord/local/temp-scan.aql b/asterix-app/src/test/resources/nontagged/custord/local/temp-scan.aql
index 8dc3cfa..7a369e6 100644
--- a/asterix-app/src/test/resources/nontagged/custord/local/temp-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/custord/local/temp-scan.aql
@@ -14,7 +14,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset Temp(ExampleType)
-  partitioned by key id on group1;
+  primary key id on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_temp_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/alltables-loadAsOpen.aql b/asterix-app/src/test/resources/nontagged/tpch/local/alltables-loadAsOpen.aql
index 7847546..0c4a5b3 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/alltables-loadAsOpen.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/alltables-loadAsOpen.aql
@@ -39,21 +39,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 //load dataset LineItems from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/lineitem.json" pre-sorted;
 //load dataset Orders from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/orders.json" pre-sorted;
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/alltablesAsopen-scan.aql b/asterix-app/src/test/resources/nontagged/tpch/local/alltablesAsopen-scan.aql
index cd32ae0..c147235 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/alltablesAsopen-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/alltablesAsopen-scan.aql
@@ -79,21 +79,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 write output to nc1:"/home/yasser/Desktop/result_scan.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-drop.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-drop.aql
index e8c56c1..a30757c 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-drop.aql
@@ -90,21 +90,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 drop dataset LineItems;
 //drop dataset Orders;
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-load.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-load.aql
index 9e05370..0bd1a39 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-load.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-load.aql
@@ -90,21 +90,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 //load dataset LineItems from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/lineitem.json" pre-sorted;
 //load dataset Orders from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/orders.json" pre-sorted;
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q1.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q1.aql
index 441ac43..f08d390 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q1.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q1.aql
@@ -24,7 +24,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_closed_1.adm";
  
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q3.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q3.aql
index e002ad9..6933881 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q3.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q3.aql
@@ -47,11 +47,11 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_closed_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q5.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q5.aql
index ceca8cd..d605099 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q5.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q5.aql
@@ -70,17 +70,17 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_closed_5.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q9.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q9.aql
index 2586561..acf2ae3 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q9.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-q9.aql
@@ -74,17 +74,17 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_closed_9.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-scan.aql b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-scan.aql
index f4f50b1..4b97d2e 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-scan.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/closedtables-scan.aql
@@ -90,21 +90,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 write output to nc1:"/home/yasser/Desktop/result_scan.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-drop.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-drop.aql
index 06d352c..61b6d85 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-drop.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-drop.aql
@@ -39,21 +39,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 drop dataset LineItems;
 //drop dataset Orders;
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-load.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-load.aql
index 4241366..fdcf15c 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-load.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-load.aql
@@ -39,21 +39,21 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 //load dataset LineItems from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/lineitem.json" pre-sorted;
 //load dataset Orders from nc1:"/home/yasser/Dropbox/Research/data/tpch_data/alldata/jsonformat/orders.json" pre-sorted;
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q1.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q1.aql
index ec5e202..6288b4f 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q1.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q1.aql
@@ -10,7 +10,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_open_1.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q3.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q3.aql
index 921cea6..955eba7 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q3.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q3.aql
@@ -18,11 +18,11 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_open_3.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q5.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q5.aql
index 82c996f..ffbd71d 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q5.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q5.aql
@@ -30,17 +30,17 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_open_5.adm";
 
diff --git a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q9.aql b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q9.aql
index 75b176d..8064099 100644
--- a/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q9.aql
+++ b/asterix-app/src/test/resources/nontagged/tpch/local/opentables-q9.aql
@@ -39,17 +39,17 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
   
 write output to nc1:"/home/yasser/Dropbox/Research/data/results/result_tpch_closed_9.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/ignore.txt b/asterix-app/src/test/resources/optimizerts/ignore.txt
index 49767eb..babe741 100644
--- a/asterix-app/src/test/resources/optimizerts/ignore.txt
+++ b/asterix-app/src/test/resources/optimizerts/ignore.txt
@@ -1,2 +1 @@
-distinct_aggregate.aql
-cell-aggregation-with-filtering.aql
+distinct_aggregate.aql
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-multipred.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-multipred.aql
new file mode 100644
index 0000000..f235220
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-multipred.aql
@@ -0,0 +1,48 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ *                  We expect the additional predicates to be put into a select above the 
+ *                  primary index search.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as closed {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create dataset Customers(CustomerType) primary key cid;
+create dataset Orders(OrderType) primary key oid;
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join-multipred.adm";
+
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+where $c.cid /*+ indexnl */ = $o.cid and $c.name < $o.orderstatus and $c.age < $o.cid
+return {"customer":$c, "order": $o} 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_01.aql
new file mode 100644
index 0000000..8e8324f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : This is a negative test, mis-spelt/incorrect HINT should result in
+ *                a plan not using an indexed-nested loops join strategy. We expect a hash join. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join-neg_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ index */ = $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_02.aql
new file mode 100644
index 0000000..8a62332
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join-neg_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : This is a negative test, mis-spelt/incorrect HINT should result in
+ *                a plan not using an indexed-nested loops join strategy. We expect a hash join. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join-neg_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ index */ = $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_01.aql
new file mode 100644
index 0000000..6950747
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan.
+ *              : We expect a plan that hash-exchanges internal dataset DsTwo, then probes internal dataset DsOne’s primary index.
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is a HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ indexnl */ = $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_02.aql
new file mode 100644
index 0000000..b7832fd
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that hash-exchanges internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is a HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ indexnl */ = $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_03.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_03.aql
new file mode 100644
index 0000000..9268c2c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_03.aql
@@ -0,0 +1,46 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as closed {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create dataset Customers(CustomerType) primary key cid;
+create dataset Orders(OrderType) primary key oid;
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join_04.adm";
+
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+where $c.cid /*+ indexnl */ = $o.cid
+return {"customer":$c, "order": $o} 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_04.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_04.aql
new file mode 100644
index 0000000..3c07154
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_04.aql
@@ -0,0 +1,46 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as closed {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create dataset Customers(CustomerType) primary key cid;
+create dataset Orders(OrderType) primary key oid;
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join_05.adm";
+
+for $o in dataset('Orders')
+for $c in dataset('Customers')
+where $o.cid /*+ indexnl */ = $c.cid 
+return {"customer":$c, "order": $o} 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_05.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_05.aql
new file mode 100644
index 0000000..7da6b0c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-equi-join_05.aql
@@ -0,0 +1,36 @@
+/*
+ * Description    : Self-equi joins a dataset, Customers, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+write output to nc1:"rttest/btree-index-join_primary-equi-join_06.adm";
+
+for $c1 in dataset('Customers')
+for $c2 in dataset('Customers')
+where $c1.cid /*+ indexnl */ = $c2.cid 
+return {"customer1":$c1, "customer2":$c2} 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_01.aql
new file mode 100644
index 0000000..8bc306c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-ge-join_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ indexnl */ >= $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_02.aql
new file mode 100644
index 0000000..06be0e9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-ge-join_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-ge-join_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ indexnl */ <= $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_01.aql
new file mode 100644
index 0000000..67d75a1
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-gt-join_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ indexnl */ > $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_02.aql
new file mode 100644
index 0000000..a7be083
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-gt-join_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-gt-join_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ indexnl */ < $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_01.aql
new file mode 100644
index 0000000..66f2ace
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-le-join_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ indexnl */ <= $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_02.aql
new file mode 100644
index 0000000..39c1d51
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-le-join_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-le-join_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ indexnl */ >= $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_01.aql
new file mode 100644
index 0000000..ef6a616
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_01.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-lt-join_01.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key1 /*+ indexnl */ < $y.key2
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_02.aql
new file mode 100644
index 0000000..4924514
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/primary-lt-join_02.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Notice the query hint to use an indexed nested-loops join plan. 
+ *              : We expect a plan that broadcasts internal dataset DsTwo, then probes internal dataset DsOne’s primary index. 
+ * Expected Res : Success
+ * Date         : 29th November 2012
+ */
+
+drop dataverse test1 if exists;
+create dataverse test1;
+
+create type test1.TestType as open {
+          key1: int32,
+          key2: int32,
+          fname : string,
+          lname : string
+}
+
+create dataset test1.DsOne(TestType) primary key key1;
+create dataset test1.DsTwo(TestType) primary key key1;
+
+// Please note content enclosed in the comment in the predicate is the HINT to the optimizer
+
+write output to nc1:"rttest/btree-index-join_primary-lt-join_02.adm";
+
+for $x in dataset('test1.DsOne')
+for $y in dataset('test1.DsTwo')
+where $x.key2 /*+ indexnl */ > $y.key1
+return $x
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multiindex.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multiindex.aql
new file mode 100644
index 0000000..c596984
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multiindex.aql
@@ -0,0 +1,60 @@
+/*
+ * Description    : Equi joins two datasets, FacebookUsers and FacebookMessages, based on their user's id.
+ *                  We first expect FacebookUsers' primary index to be used 
+ *                  to satisfy the range condition on it's primary key. 
+ *                  FacebookMessages has a secondary btree index on author-id-copy, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type EmploymentType as closed { 
+  organization-name: string,
+  start-date: date,
+  end-date: date?
+} 
+
+create type FacebookUserType as closed { 
+  id: int32,
+  id-copy: int32,
+  alias: string,
+  name: string,
+  user-since: datetime,
+  user-since-copy: datetime,
+  friend-ids: {{ int32 }},
+  employment: [EmploymentType]
+} 
+
+create type FacebookMessageType as closed { 
+  message-id: int32,
+  message-id-copy: int32,
+  author-id: int32,
+  author-id-copy: int32,
+  in-response-to: int32?,
+  sender-location: point?,
+  message: string
+} 
+
+create dataset FacebookUsers(FacebookUserType)
+primary key id;
+
+create dataset FacebookMessages(FacebookMessageType)
+primary key message-id;
+
+create index fbmIdxAutId if not exists on FacebookMessages(author-id-copy);
+
+write output to nc1:"rttest/btree-index-join_title-secondary-equi-join-multiindex.adm";
+
+for $user in dataset('FacebookUsers')
+for $message in dataset('FacebookMessages')
+where $user.id /*+ indexnl */ = $message.author-id-copy
+and $user.id >= 11000 and $user.id <= 12000
+return {
+  "fbu-ID": $user.id,
+  "fbm-auth-ID": $message.author-id,
+  "uname": $user.name,
+  "message": $message.message
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql
new file mode 100644
index 0000000..bb803b0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join-multipred.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the additional predicates to be put into a select above the 
+ *                  primary index search.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index title_index on DBLP(title);
+
+write output to nc1:"rttest/btree-index-join_title-secondary-equi-join-multipred.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.title /*+ indexnl */ = $b.title and $a.authors < $b.authors and $a.misc > $b.misc
+return {"arec": $a, "brec": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql
new file mode 100644
index 0000000..8a4f056
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_01.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index title_index on DBLP(title);
+
+write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.title /*+ indexnl */ = $b.title
+return {"arec": $a, "brec": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql
new file mode 100644
index 0000000..fa68cd2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_02.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  CSX has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index title_index on CSX(title);
+
+write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.title /*+ indexnl */ = $b.title
+return {"arec": $a, "brec": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql
new file mode 100644
index 0000000..3eedafd
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index-join/secondary-equi-join_03.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Equi self-joins a dataset, DBLP, based on its title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index title_index on DBLP(title);
+
+write output to nc1:"rttest/btree-index-join_title-secondary-equi-join_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where $a.title /*+ indexnl */ = $b.title
+return {"arec": $a, "brec": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql
new file mode 100644
index 0000000..0d096a7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-01.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Please note this is a Negative test and the BTree index should NOT be used in the plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-01.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index (composite key) defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Roger"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql
new file mode 100644
index 0000000..fbcdd50
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-02.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// This is a Negative test - prefix search, BTree index should not be used in the plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-02.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Susan"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql
new file mode 100644
index 0000000..2047b62
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-03.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should not be used.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-03.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname < "Isa"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql
new file mode 100644
index 0000000..84147ae
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-04.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should not be used in query plan
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-04.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Vanpatten"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql
new file mode 100644
index 0000000..0fbf179
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-05.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - BTree index should NOT be used in query plan
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-05.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname != "Max"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql
new file mode 100644
index 0000000..08164fd
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-06.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should NOT be used in the query plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-06.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql
new file mode 100644
index 0000000..2b635a5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-07.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan. 
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// THE BTREE INDEX IN THIS CASE SHOULD NOT BE PICKED UP!!!!
+// Verify that the optimized query plan does not have the BTree search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-07.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+// create internal dataset with primary index defined on fname,lname fields
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.lname = "Kim"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql
new file mode 100644
index 0000000..337072e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-08.aql
@@ -0,0 +1,22 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is used in the optimized query plan 
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-08.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Young Seok" and $emp.lname = "Kim"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql
new file mode 100644
index 0000000..cc52d2a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-09.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-09.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio" or $emp.lname = "Malaika"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql
new file mode 100644
index 0000000..4d0f85e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-10.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification (usage) test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-10.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Alex" and $emp.lname < "Zach"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql
new file mode 100644
index 0000000..164e49a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-11.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan for predicates.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-11.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Allan" and $emp.lname < "Zubi"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql
new file mode 100644
index 0000000..659d1ff
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-12.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : BTree Index verification (usage) test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-12.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Allan" and $emp.lname = "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql
new file mode 100644
index 0000000..3c49200
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-13.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-13.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio" and $emp.lname < "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql
new file mode 100644
index 0000000..e93061f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-14.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-14.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Michael" and $emp.lname <= "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql
new file mode 100644
index 0000000..97a486a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-15.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-15.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql
new file mode 100644
index 0000000..cf80ed2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-16.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-16.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql
new file mode 100644
index 0000000..db9c994
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-17.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-17.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Craig" and $emp.lname > "Kevin"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql
new file mode 100644
index 0000000..9787005
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-18.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is NOT used 
+ *                  : in the optimized query plan 
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-18.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname != "Michael" and $emp.lname != "Carey"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql
new file mode 100644
index 0000000..0dff6af
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-19.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-19.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql
new file mode 100644
index 0000000..ac9e374
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-20.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-20.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql
new file mode 100644
index 0000000..afa241f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-21.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-21.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Max" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql
new file mode 100644
index 0000000..4af86a0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-22.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-22.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Sofia" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql
new file mode 100644
index 0000000..f73bd1f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-23.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-23.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname < "Chen" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql
new file mode 100644
index 0000000..1faa37e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-24.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-24.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Julio" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql
new file mode 100644
index 0000000..6b24b7c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-25.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-25.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Neil" and $emp.fname < "Roger" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql
new file mode 100644
index 0000000..05a69d2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-26.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-26.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Max" and $emp.fname <= "Roger" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-27.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-27.aql
new file mode 100644
index 0000000..e9ccb87
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-27.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 5th Feb 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-27.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-28.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-28.aql
new file mode 100644
index 0000000..5e7b4e3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-28.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 5th Feb 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-28.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType)  primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname <= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-29.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-29.aql
new file mode 100644
index 0000000..c7d4753
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-29.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 5th Feb 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-29.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType)  primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname >= "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-30.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-30.aql
new file mode 100644
index 0000000..a9a2573
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-primary-30.aql
@@ -0,0 +1,24 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 5th Feb 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-30.adm";
+
+create type TestType as open {
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType)  primary key fname,lname;
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql
new file mode 100644
index 0000000..c2e6257
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-31.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Please note this is a Negative test and the BTree index should NOT be used in the plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-31.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Roger"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql
new file mode 100644
index 0000000..d009e2e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-32.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// This is a Negative test - prefix search, BTree index should not be used in the plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-32.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Susan"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql
new file mode 100644
index 0000000..2b364e4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-33.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification (usage) test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should not be used.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-33.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname < "Isa"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql
new file mode 100644
index 0000000..f20b5a9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-34.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should not be used in query plan
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-34.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Vanpatten"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql
new file mode 100644
index 0000000..dfc5017
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-35.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - BTree index should NOT be used in query plan
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-35.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname != "Max"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
new file mode 100644
index 0000000..7d72623
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-36.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search, BTree index should NOT be used in the query plan.
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-36.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql
new file mode 100644
index 0000000..7c155ce
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-37.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// THE BTREE INDEX IN THIS CASE SHOULD NOT BE PICKED UP!!!!
+// Verify that the optimized query plan does not have the BTree search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-37.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.lname = "Kim"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql
new file mode 100644
index 0000000..dc63f05
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-38.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used in the optimized query plan 
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-38.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Young Seok" and $emp.lname = "Kim"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
new file mode 100644
index 0000000..a9d32c3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-39.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-39.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio" or $emp.lname = "Malaika"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql
new file mode 100644
index 0000000..25c6dec
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-40.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-40.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Alex" and $emp.lname < "Zach"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql
new file mode 100644
index 0000000..bc65009
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-41.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-41.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Allan" and $emp.lname < "Zubi"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql
new file mode 100644
index 0000000..289d1b4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-42.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-42.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Allan" and $emp.lname = "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql
new file mode 100644
index 0000000..86e5d67
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-43.aql
@@ -0,0 +1,29 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+// Negative test - prefix search
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-43.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Julio" and $emp.lname < "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql
new file mode 100644
index 0000000..54e149e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-44.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-44.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Michael" and $emp.lname <= "Xu"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql
new file mode 100644
index 0000000..cc33e5a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-45.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-45.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql
new file mode 100644
index 0000000..f486e44
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-46.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-46.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql
new file mode 100644
index 0000000..5d06a51
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-47.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-47.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Craig" and $emp.lname > "Kevin"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql
new file mode 100644
index 0000000..2dc1ab4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-48.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is NOT used 
+ *                  : in the optimized query plan 
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-48.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname != "Michael" and $emp.lname != "Carey"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql
new file mode 100644
index 0000000..6175ba6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-49.aql
@@ -0,0 +1,28 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-49.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+// create internal dataset
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname <= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql
new file mode 100644
index 0000000..04aefc3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-50.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-50.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Craig" and $emp.lname >= "Kevin" and $emp.fname < "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql
new file mode 100644
index 0000000..5ae63a9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-51.aql
@@ -0,0 +1,27 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-51.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst')
+where $emp.fname >= "Craig" and $emp.lname <= "Kevin" and $emp.fname <= "Mary" and $emp.lname >= "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql
new file mode 100644
index 0000000..e720742
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-52.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-52.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+ 
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Max" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql
new file mode 100644
index 0000000..65a9b6d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-53.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-53.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Sofia" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql
new file mode 100644
index 0000000..a18975a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-54.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-54.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname < "Chen" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql
new file mode 100644
index 0000000..94c1463
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-55.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-55.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname <= "Julio" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql
new file mode 100644
index 0000000..53f8ca4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-56.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the primary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-primary-56.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Neil" and $emp.fname < "Roger" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql
new file mode 100644
index 0000000..43cf54d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-57.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-57.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname >= "Max" and $emp.fname <= "Roger" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql
new file mode 100644
index 0000000..aa18136
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-58.aql
@@ -0,0 +1,26 @@
+/*
+ *  Description     : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-58.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+ 
+create dataset testdst(TestType) primary key id;
+
+create index sec_Idx on testdst(fname);
+
+for $emp in dataset('testdst') 
+where $emp.fname = "Max" 
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-59.aql b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-59.aql
new file mode 100644
index 0000000..2b0a300
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/btree-index/btree-secondary-59.aql
@@ -0,0 +1,28 @@
+/*
+ *  Description     : BTree Index verification test
+ *                  : This test is intended to verify that the secondary BTree index is used 
+ *                  : in the optimized query plan.
+ *  Expected Result : Success
+ *  Date            : 13th Aug 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/btree-index_btree-secondary-49.adm";
+
+create type TestType as open {
+    id : int32,
+    fname : string,
+    lname : string
+}
+
+// create internal dataset
+create dataset testdst(TestType)  primary key id;
+
+create index sec_Idx on testdst(fname,lname);
+
+for $emp in dataset('testdst') 
+where $emp.fname > "Craig" and $emp.lname > "Kevin" and $emp.fname <= "Mary" and $emp.lname < "Tomes"
+return $emp
diff --git a/asterix-app/src/test/resources/optimizerts/queries/cell-aggregation-with-filtering.aql b/asterix-app/src/test/resources/optimizerts/queries/cell-aggregation-with-filtering.aql
deleted file mode 100644
index a328a1b..0000000
--- a/asterix-app/src/test/resources/optimizerts/queries/cell-aggregation-with-filtering.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse twitter if exists;
-create dataverse twitter;
-use dataverse twitter;
-
-create type Tweet as closed {
-	id: int32,
-	tweetid: int64,
-	loc: point,
-	time: datetime,
-	text: string
-}
-
-create nodegroup group1 if exists on nc1, nc2;
-
-create dataset TwitterData(Tweet)
-  partitioned by key id on group1;
-
-
-load dataset TwitterData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm")) pre-sorted;
-
-create index rtree_index_point on TwitterData(loc) type rtree;
-
-write output to nc1:"rttest/spatial_cell-aggregation-with-filtering.adm";
-
-for $t in dataset('TwitterData')
-let $region := polygon("
-	33.80503407287759,-126.41235263538363 
-	44.9090773200516,-126.41235263538363 
-	44.9090773200516,-87.65258701038363 
-	33.80503407287759,-87.65258701038363")
-
-where spatial-intersect($t.loc, $region)
-group by $c := spatial-cell($t.loc, create-point(24.5,-125.5), 3.0, 3.0) with $t
-order by count($t)
-return { "cell": $c, "count": count($t) }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-complex.aql b/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-complex.aql
new file mode 100644
index 0000000..7dfe817
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-complex.aql
@@ -0,0 +1,31 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+write output to nc1:"rttest/consolidate-complex-selects.aql";
+
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Transactions for Cooperative Environments")
+let $jacca := similarity-jaccard-check($paper_tokens, $query_tokens, 0.8f)
+let $jaccb := similarity-jaccard-check($paper_tokens, $query_tokens, 0.5f)
+let $jaccc := similarity-jaccard-check($paper_tokens, $query_tokens, 0.3f)
+where $jacca[0] and $jaccb[0] and $paper.authors = "testauth" and $jaccc
+return {"Paper": $paper_tokens, "Query": $query_tokens }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-simple.aql b/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-simple.aql
new file mode 100644
index 0000000..d21fa6e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/consolidate-selects-simple.aql
@@ -0,0 +1,28 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Customers(CustomerType) 
+  primary key c_custkey on group1;
+
+write output to nc1:"rttest/consolidate-selects-simple.aql";
+
+for $c in dataset('Customers')
+where $c.c_name = "testname" 
+  and $c.c_address = "testaddr"
+  and $c.c_nationkey = 1
+  and $c.c_phone = "123456789"
+return $c
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/count-tweets.aql b/asterix-app/src/test/resources/optimizerts/queries/count-tweets.aql
index 5e4cde1..651cf88 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/count-tweets.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/count-tweets.aql
@@ -6,7 +6,7 @@
   id: int32,
   tweetid: int64,
   loc: point,
-  time: string,
+  time: datetime,
   text: string
 }
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/cust_group_no_agg.aql b/asterix-app/src/test/resources/optimizerts/queries/cust_group_no_agg.aql
index 6fdae88..6a86b8a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/cust_group_no_agg.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/cust_group_no_agg.aql
@@ -18,7 +18,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/denorm-cust-order.aql b/asterix-app/src/test/resources/optimizerts/queries/denorm-cust-order.aql
index acad4a1..389dad5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/denorm-cust-order.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/denorm-cust-order.aql
@@ -36,9 +36,9 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
 create dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/custorder.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/distinct_aggregate.aql b/asterix-app/src/test/resources/optimizerts/queries/distinct_aggregate.aql
index a4784c1..6fc1dac 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/distinct_aggregate.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/distinct_aggregate.aql
@@ -24,7 +24,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems_q1(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 write output to nc1:"rttest/tpch_q1_pricing_summary_report_nt.adm";
  
diff --git a/asterix-app/src/test/resources/optimizerts/queries/fj-dblp-csx.aql b/asterix-app/src/test/resources/optimizerts/queries/fj-dblp-csx.aql
index 2898058..f748eae 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/fj-dblp-csx.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/fj-dblp-csx.aql
@@ -22,8 +22,8 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
+create dataset DBLP(DBLPType) primary key id on group1;
+create dataset CSX(CSXType) primary key id on group1;
 
 write output to nc1:'rttest/fj-dblp-csx.adm';
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/fj-phase1.aql b/asterix-app/src/test/resources/optimizerts/queries/fj-phase1.aql
index 778232a..19ceda0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/fj-phase1.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/fj-phase1.aql
@@ -19,10 +19,10 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 create dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 
 // set simfunction "jaccard";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/fj-phase2-with-hints.aql b/asterix-app/src/test/resources/optimizerts/queries/fj-phase2-with-hints.aql
index 866c027..a0973f4 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/fj-phase2-with-hints.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/fj-phase2-with-hints.aql
@@ -15,7 +15,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset DBLP_fuzzyjoin_078(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 write output to nc1:'rttest/fuzzyjoin_078.adm';
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inlined_q18_large_volume_customer.aql b/asterix-app/src/test/resources/optimizerts/queries/inlined_q18_large_volume_customer.aql
index 49c4157..0db7a51 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/inlined_q18_large_volume_customer.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/inlined_q18_large_volume_customer.aql
@@ -49,11 +49,11 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/inlined_q18_large_volume_customer.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql b/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
index 9427ab5..cd1d78c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
@@ -9,7 +9,7 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 
-create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) partitioned by key rank on group1;
+create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) primary key rank on group1;
 
 write output to nc1:'rttest/introhashpartitionmerge.adm';
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql
new file mode 100644
index 0000000..d193238
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains-panic.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the contains function.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-contains-panic.adm";
+
+// Cannot optimize this query because the string constant is shorter than the gram length.
+for $o in dataset('DBLP')
+where contains($o.title, "Mu")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql
new file mode 100644
index 0000000..137b1c7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-contains.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the contains function.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-contains.adm";
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql
new file mode 100644
index 0000000..6f7f38c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check-panic.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-check-panic.adm";
+
+// This query cannot be optimized with an index, based on the high edit distance.
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
+where $ed[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql
new file mode 100644
index 0000000..0d9db19
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-check.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-check.adm";
+
+for $o in dataset('DBLP')
+where edit-distance-check($o.authors, "Amihay Motro", 1)[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql
new file mode 100644
index 0000000..7decdb5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance-panic.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance function on strings.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-panic.adm";
+
+// This query cannot be optimized with an index, based on the high edit distance.
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Amihay Motro") <= 5
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql
new file mode 100644
index 0000000..c7a9ba4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-edit-distance.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance function on strings.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance.adm";
+
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Amihay Motro") <= 1
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql
new file mode 100644
index 0000000..3a3d7bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-edit-distance.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query with ~= using edit-distance on strings.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-fuzzyeq-edit-distance.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '1';
+
+for $o in dataset('DBLP')
+where $o.authors ~= "Amihay Motro"
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..5e9ac0e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-fuzzyeq-jaccard.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query with ~= using Jaccard on 3-gram tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.8f';
+
+for $o in dataset('DBLP')
+where gram-tokens($o.title, 3, false) ~= gram-tokens("Transactions for Cooperative Environments", 3, false)
+return $o
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql
new file mode 100644
index 0000000..dbb9c71
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard-check.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the similarity-jaccard-check function on 3-gram tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-jaccard-check.adm";
+
+for $o in dataset('DBLP')
+where similarity-jaccard-check(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false), 0.5f)[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql
new file mode 100644
index 0000000..f25fb8b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ngram-jaccard.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the similarity-jaccard function on 3-gram tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-basic_ngram-jaccard.adm";
+
+for $o in dataset('DBLP')
+where similarity-jaccard(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false)) >= 0.5f
+return $o
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql
new file mode 100644
index 0000000..c105eab
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check-panic.aql
@@ -0,0 +1,36 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the edit-distance-check function on lists.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-check-panic.adm";
+
+// Index should not be applied because all list elements can be modified by 3 edit operations.
+for $c in dataset('Customers')
+where edit-distance-check($c.interests, ["computers", "wine", "walking"], 3)[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql
new file mode 100644
index 0000000..b12037d1
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-check.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the edit-distance-check function on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-check.adm";
+
+for $c in dataset('Customers')
+where edit-distance-check($c.interests, ["computers", "wine", "walking"], 1)[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql
new file mode 100644
index 0000000..84bcbb9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance-panic.aql
@@ -0,0 +1,36 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the edit-distance function on lists.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-edit-distance-panic.adm";
+
+// Index should not be applied because all list elements can be modified by 3 edit operations.
+for $c in dataset('Customers')
+where edit-distance($c.interests, ["computers", "wine", "walking"]) <= 3
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql
new file mode 100644
index 0000000..afafa37
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-edit-distance.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the edit-distance function on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-edit-distance.adm";
+
+for $c in dataset('Customers')
+where edit-distance($c.interests, ["computers", "wine", "walking"]) <= 1
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql
new file mode 100644
index 0000000..86b6474
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-edit-distance.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query with ~= using edit-distance on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-fuzzyeq-edit-distance.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '1';
+
+for $c in dataset('Customers')
+where $c.interests ~= ["computers", "wine", "walking"]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..64812db
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-fuzzyeq-jaccard.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Tests whether a keyword is applied to optimize a selection query with ~= using Jaccard on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.8f';
+
+for $c in dataset('Customers')
+where $c.interests ~= ["databases", "computers", "wine"]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql
new file mode 100644
index 0000000..4f8b8fe
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard-check.aql
@@ -0,0 +1,34 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-jaccard-check.adm";
+
+for $c in dataset('Customers')
+where similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)[0]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql
new file mode 100644
index 0000000..62d6806
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/olist-jaccard.aql
@@ -0,0 +1,34 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard function on lists.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_olist-jaccard.adm";
+
+for $c in dataset('Customers')
+where similarity-jaccard($c.interests, ["databases", "computers", "wine"]) >= 0.7f
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..4ac02c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-fuzzyeq-jaccard.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Tests whether a keyword is applied to optimize a selection query with ~= using Jaccard on sets.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_ulist-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.8f';
+
+for $c in dataset('Customers')
+where $c.interests ~= ["databases", "computers", "wine"]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql
new file mode 100644
index 0000000..80e8aef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard-check.aql
@@ -0,0 +1,34 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on sets.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_ulist-jaccard.adm";
+
+for $c in dataset('Customers')
+where similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)[0]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql
new file mode 100644
index 0000000..588ca14
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/ulist-jaccard.aql
@@ -0,0 +1,34 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard function on sets.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_ulist-jaccard.adm";
+
+for $c in dataset('Customers')
+where similarity-jaccard($c.interests, ["databases", "computers", "wine"]) >= 0.7f
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql
new file mode 100644
index 0000000..8d9cb02
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-contains.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the contains function.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_word-contains.adm";
+
+// Contains cannot be answered with a word inverted index.
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..006398e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-fuzzyeq-jaccard.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Tests whether a keyword is applied to optimize a selection query with ~= using Jaccard on word tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_word-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $o in dataset('DBLP')
+where word-tokens($o.title) ~= word-tokens("Transactions for Cooperative Environments")
+return $o
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql
new file mode 100644
index 0000000..4c814e4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard-check.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on word tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_word-jaccard-check.adm";
+
+for $o in dataset('DBLP')
+where similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql
new file mode 100644
index 0000000..53a5bbb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-basic/word-jaccard.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard function on word tokens.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-basic_word-jaccard.adm";
+
+for $o in dataset('DBLP')
+where similarity-jaccard(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments")) >= 0.5f
+return $o
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql
new file mode 100644
index 0000000..1c96adc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using 
+ *                  two edit-distance-check function of which only the first can be optimized with an index. 
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic-nopanic_01.adm";
+
+// Only the first edit-distance-check can be optimized with an index.
+for $o in dataset('DBLP')
+let $eda := edit-distance-check($o.authors, "Amihay Motro", 3)
+let $edb := edit-distance-check($o.authors, "Amihay Motro", 5)
+where $eda[0] and $edb[0] 
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql
new file mode 100644
index 0000000..e80443e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using 
+ *                  two edit-distance-check function of which only the second can be optimized with an index.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic-nopanic_01.adm";
+
+// Only the second edit-distance-check can be optimized with an index.
+for $o in dataset('DBLP')
+let $edb := edit-distance-check($o.authors, "Amihay Motro", 5)
+let $eda := edit-distance-check($o.authors, "Amihay Motro", 3)
+where $edb[0] and $eda[0] 
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql
new file mode 100644
index 0000000..d0d3035
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let-panic.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let-panic.adm";
+
+// This query cannot be optimized with an index, based on the high edit distance.
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
+where $ed[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
new file mode 100644
index 0000000..2d2f34f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-edit-distance-check-let.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-edit-distance-check-let.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 1)
+where $ed[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql
new file mode 100644
index 0000000..fb59040
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-let.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the similarity-jaccard-check function on 3-gram tokens.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-jaccard-check-let.adm";
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false), 0.5f)
+where $jacc[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql
new file mode 100644
index 0000000..b86c6b2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ngram-jaccard-check-multi-let.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the similarity-jaccard-check function on 3-gram tokens.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-complex_ngram-jaccard-check-multi-let.adm";
+
+// This test is complex because we have three assigns to drill into.
+for $paper in dataset('DBLP')
+let $paper_tokens := gram-tokens($paper.title, 3, false)
+let $query_tokens := gram-tokens("Transactions for Cooperative Environments", 3, false)
+let $jacc := similarity-jaccard-check($paper_tokens, $query_tokens, 0.5f)
+where $jacc[0]
+return {"Paper": $paper_tokens, "Query": $query_tokens }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql
new file mode 100644
index 0000000..aa9bc59
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let-panic.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on lists.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should *not* be applied (see below).
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_olist-edit-distance-check-let-panic.adm";
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 3)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql
new file mode 100644
index 0000000..8a78450
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-edit-distance-check-let.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on lists.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_olist-edit-distance-check-let.adm";
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 1)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql
new file mode 100644
index 0000000..48ec727
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/olist-jaccard-check-let.aql
@@ -0,0 +1,36 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on lists.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_olist-jaccard-check-let.adm";
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql
new file mode 100644
index 0000000..0757d41
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/ulist-jaccard-check-let.aql
@@ -0,0 +1,36 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on lists.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_ulist-jaccard-check-let.adm";
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql
new file mode 100644
index 0000000..ec97668
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-let.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on word tokens.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_word-jaccard-check-let.adm";
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql
new file mode 100644
index 0000000..bf1821e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-complex/word-jaccard-check-multi-let.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Tests whether a keyword index is applied to optimize a selection query using the similarity-jaccard-check function on word tokens.
+ *                  Tests that the optimizer rule correctly drills through the let clauses.
+ *                  The index should be applied.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-complex_word-jaccard-check-multi-let.adm";
+
+// This test is complex because we have three assigns to drill into.
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Transactions for Cooperative Environments")
+let $jacc := similarity-jaccard-check($paper_tokens, $query_tokens, 0.8f)
+where $jacc[0]
+return {"Paper": $paper_tokens, "Query": $query_tokens }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline.aql
new file mode 100644
index 0000000..ee768d7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the edit-distance function of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-edit-distance-inline.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $ed := edit-distance($a.authors, $b.authors)
+where $ed < 3 and $a.id < $b.id
+return {"aauthors": $a.authors, "bauthors": $b.authors, "ed": $ed}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance.aql
new file mode 100644
index 0000000..ca2827d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-edit-distance.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the edit-distance function of their authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary. 
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-edit-distance.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where edit-distance($a.authors, $b.authors) < 3 and $a.id < $b.id
+return {"aauthors": $a.authors, "bauthors": $b.authors}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.aql
new file mode 100644
index 0000000..0e15708
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.aql
@@ -0,0 +1,42 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using edit distance of their authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary. 
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-fuzzyeq-edit-distance.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.authors ~= $b.authors and $a.id < $b.id
+return {"aauthors": $a.authors, "bauthors": $b.authors}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..1a97936
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.aql
@@ -0,0 +1,42 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where gram-tokens($a.title, 3, false) ~= gram-tokens($b.title, 3, false) and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline.aql
new file mode 100644
index 0000000..bf6bb82
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-jaccard-inline.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false))
+where $jacc >= 0.5f and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title, "jacc": $jacc}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard.aql
new file mode 100644
index 0000000..dae2a78
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ngram-jaccard.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ngram-jaccard.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f
+      and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline.aql
new file mode 100644
index 0000000..21114fc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the edit-distance function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-edit-distance-inline.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $ed := edit-distance($a.interests, $b.interests)
+where $ed <= 2 and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests, "ed": $ed}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance.aql
new file mode 100644
index 0000000..b90b4f7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-edit-distance.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-edit-distance.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance($a.interests, $b.interests) <= 2 and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.aql
new file mode 100644
index 0000000..c78f65c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using edit distance of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-fuzzyeq-edit-distance.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests ~= $b.interests and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..3bbcc28
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard-inline.aql
new file mode 100644
index 0000000..7dca72a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard-inline.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-jaccard-inline.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.7f and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard.aql
new file mode 100644
index 0000000..79d8baf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/olist-jaccard.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_olist-jaccard.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..0efb32d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ulist-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline.aql
new file mode 100644
index 0000000..2bca24d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ulist-jaccard-inline.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.7f and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests, "jacc": $jacc}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard.aql
new file mode 100644
index 0000000..8805542
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/ulist-jaccard.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_ulist-jaccard.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"ainterests": $a.interests, "binterests": $b.interests}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.aql
new file mode 100644
index 0000000..2d2e0cc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.aql
@@ -0,0 +1,42 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_word-fuzzyeq-jaccard.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where word-tokens($a.title) ~= word-tokens($b.title) and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard-inline.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard-inline.aql
new file mode 100644
index 0000000..0d5bf9c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard-inline.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_word-jaccard-inline.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($a.title), word-tokens($b.title))
+where $jacc >= 0.5f and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title, "jacc": $jacc}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard.aql
new file mode 100644
index 0000000..5ffa92e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join-noeqjoin/word-jaccard.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join-noeqjoin_word-jaccard.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f
+      and $a.id < $b.id
+return {"atitle": $a.title, "btitle": $b.title}
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql
new file mode 100644
index 0000000..d24ee17
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_01.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the edit-distance-check function of their authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where edit-distance-check($a.authors, $b.authors, 3)[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql
new file mode 100644
index 0000000..ec553a0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_02.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the edit-distance-check function of their authors.
+ *                  CSX has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where edit-distance-check($a.authors, $b.authors, 3)[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql
new file mode 100644
index 0000000..4de1680
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_03.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the edit-distance-check function of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where edit-distance-check($a.authors, $b.authors, 3)[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql
new file mode 100644
index 0000000..091676f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance-check_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the edit-distance-check function of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance-check_04.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $ed := edit-distance-check($a.authors, $b.authors, 3)
+where $ed[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b, "ed": $ed[1] }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql
new file mode 100644
index 0000000..8a0282c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_01.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the edit-distance function of their authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where edit-distance($a.authors, $b.authors) < 3 and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql
new file mode 100644
index 0000000..5d026db
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_02.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the edit-distance function of their authors.
+ *                  CSX has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where edit-distance($a.authors, $b.authors) < 3 and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql
new file mode 100644
index 0000000..11b39c5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_03.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the edit-distance function of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where edit-distance($a.authors, $b.authors) < 3 and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql
new file mode 100644
index 0000000..b8952e9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-edit-distance_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the edit-distance function of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index. 
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-edit-distance_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $ed := edit-distance($a.authors, $b.authors)
+where $ed < 3 and $a.id < $b.id
+return {"arec": $a, "brec": $b, "ed": $ed}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql
new file mode 100644
index 0000000..4704213
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_01.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using edit distance of their authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_01.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.authors ~= $b.authors and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql
new file mode 100644
index 0000000..8454be9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_02.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using edit distance of their authors.
+ *                  CSX has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_01.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.authors ~= $b.authors and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql
new file mode 100644
index 0000000..4187d8f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-edit-distance_03.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on ~= using edit distance of its authors.
+ *                  DBLP has a 3-gram index on authors, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(authors) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-edit-distance_03.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where $a.authors ~= $b.authors and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql
new file mode 100644
index 0000000..84fb8f3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_01.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_01.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where gram-tokens($a.title, 3, false) ~= gram-tokens($b.title, 3, false) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql
new file mode 100644
index 0000000..d0c3c6f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_02.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard their titles' 3-gram tokens.
+ *                  CSX has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_02.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where gram-tokens($a.title, 3, false) ~= gram-tokens($b.title, 3, false) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql
new file mode 100644
index 0000000..a725edc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-fuzzyeq-jaccard_03.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on ~= using Jaccard of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-fuzzyeq-jaccard_03.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where gram-tokens($a.title, 3, false) ~= gram-tokens($b.title, 3, false) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql
new file mode 100644
index 0000000..c25e2e3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_01.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard-check function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard-check(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql
new file mode 100644
index 0000000..0e9f4d5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_02.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based the similarity-jaccard-check function of their titles' 3-gram tokens.
+ *                  CSX has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard-check(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql
new file mode 100644
index 0000000..bbd0f51
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_03.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard-check function of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where similarity-jaccard-check(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql
new file mode 100644
index 0000000..956f712
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard-check_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard-check function of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard-check_04.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard-check(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false), 0.5f)
+where $jacc[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b, "jacc": $jacc[1] }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql
new file mode 100644
index 0000000..742cb69
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_01.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql
new file mode 100644
index 0000000..a620399
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_02.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  CSX has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index ngram_index on CSX(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql
new file mode 100644
index 0000000..d12bf98
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_03.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql
new file mode 100644
index 0000000..6b308c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ngram-jaccard_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
+write output to nc1:"rttest/inverted-index-join_ngram-jaccard_04.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false))
+where $jacc >= 0.5f and $a.id < $b.id
+return {"arec": $a, "brec": $b, "jacc": $jacc }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql
new file mode 100644
index 0000000..1afe025
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the edit-distance-check function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance-check($a.interests, $b.interests, 3)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql
new file mode 100644
index 0000000..aec4c85
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the edit-distance-check function of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance-check($a.interests, $b.interests, 3)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql
new file mode 100644
index 0000000..47cea17
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the edit-distance-check function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where edit-distance-check($a.interests, $b.interests, 3)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql
new file mode 100644
index 0000000..9abc4e8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance-check_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the edit-distance-check function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance-check_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $ed := edit-distance-check($a.interests, $b.interests, 3)
+where $ed[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "ed": $ed[1] }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql
new file mode 100644
index 0000000..b8f6144
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance($a.interests, $b.interests) <= 2 and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql
new file mode 100644
index 0000000..7b17749
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the edit-distance function of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance($a.interests, $b.interests) <= 2 and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql
new file mode 100644
index 0000000..7132950
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the edit-distance function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where edit-distance($a.interests, $b.interests) <= 2 and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql
new file mode 100644
index 0000000..84c7d5b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-edit-distance_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the edit-distance function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-edit-distance_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $ed := edit-distance($a.interests, $b.interests)
+where $ed <= 2 and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "ed": $ed }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql
new file mode 100644
index 0000000..c84bd28
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_01.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using edit distance of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_01.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql
new file mode 100644
index 0000000..c6b9d9c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_02.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using edit distance of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_02.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql
new file mode 100644
index 0000000..962f05c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-edit-distance_03.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on ~= using edit distance of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_03.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '3';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where $a.interests ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql
new file mode 100644
index 0000000..4b3793a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_01.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_01.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql
new file mode 100644
index 0000000..60cdb07
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_02.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_02.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql
new file mode 100644
index 0000000..2df41b5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-fuzzyeq-jaccard_03.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on ~= using Jaccard of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-fuzzyeq-jaccard_03.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql
new file mode 100644
index 0000000..8968ec6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard-check function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql
new file mode 100644
index 0000000..96b8622
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard-check function of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql
new file mode 100644
index 0000000..e8763b4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard-check function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql
new file mode 100644
index 0000000..3194e47
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard-check_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard-check function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard-check_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)
+where $jacc[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "jacc": $jacc[1] }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql
new file mode 100644
index 0000000..1c4c7c2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql
new file mode 100644
index 0000000..212b64b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest lists.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql
new file mode 100644
index 0000000..22b4108
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql
new file mode 100644
index 0000000..32e8a6c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/olist-jaccard_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_olist-jaccard_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql
new file mode 100644
index 0000000..cd391a4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_01.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_01.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql
new file mode 100644
index 0000000..a7d7118
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_02.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on ~= using Jaccard of their interest sets.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_02.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql
new file mode 100644
index 0000000..a5ec440
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-fuzzyeq-jaccard_03.aql
@@ -0,0 +1,38 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on ~= using Jaccard of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-fuzzyeq-jaccard_03.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.7f';
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where $a.interests /*+ indexnl */ ~= $b.interests and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql
new file mode 100644
index 0000000..dead8cc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard-check function of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql
new file mode 100644
index 0000000..b18abf8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard-check function of their interest sets.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql
new file mode 100644
index 0000000..5afd428
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard-check function of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql
new file mode 100644
index 0000000..3c8bdd7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard-check_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard-check function of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard-check_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard-check($a.interests, $b.interests, 0.7f)
+where $jacc[0] and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "jacc": $jacc[1] }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql
new file mode 100644
index 0000000..2001a2a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_01.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard_01.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql
new file mode 100644
index 0000000..95ce2ad
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_02.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customer and Customer2, based on the similarity-jaccard function of their interest sets.
+ *                  Customers2 has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
+create index interests_index on Customers2(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard_02.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql
new file mode 100644
index 0000000..e4fc27f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_03.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard_03.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql
new file mode 100644
index 0000000..6356f79
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/ulist-jaccard_04.aql
@@ -0,0 +1,37 @@
+/*
+ * Description    : Fuzzy self joins a dataset, Customers, based on the similarity-jaccard function of its interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create index interests_index on Customers(interests) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_ulist-jaccard_04.adm";
+
+for $a in dataset('Customers')
+for $b in dataset('Customers')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.7f and $a.cid < $b.cid
+return {"arec": $a, "brec": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql
new file mode 100644
index 0000000..ff39969
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_01.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_01.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where word-tokens($a.title) ~= word-tokens($b.title) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql
new file mode 100644
index 0000000..f693855
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_02.aql
@@ -0,0 +1,41 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on ~= using Jaccard of their titles' word tokens.
+ *                  CSX has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on CSX(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_02.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where word-tokens($a.title) ~= word-tokens($b.title) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql
new file mode 100644
index 0000000..72f9bdc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-fuzzyeq-jaccard_03.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on ~= using Jaccard of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-fuzzyeq-jaccard_03.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where word-tokens($a.title) ~= word-tokens($b.title) and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql
new file mode 100644
index 0000000..2a076bc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_01.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard-check function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard-check_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard-check(word-tokens($a.title), word-tokens($b.title), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql
new file mode 100644
index 0000000..98b3972
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_02.aql
@@ -0,0 +1,39 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard-check function of their titles' word tokens.
+ *                  CSX has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on CSX(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard-check_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard-check(word-tokens($a.title), word-tokens($b.title), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql
new file mode 100644
index 0000000..dace174
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_03.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard-check function of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard-check_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where similarity-jaccard-check(word-tokens($a.title), word-tokens($b.title), 0.5f)[0]
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql
new file mode 100644
index 0000000..fa68be2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard-check_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard-check function of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard-check_04.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($a.title), word-tokens($b.title), 0.5f)
+where $jacc[0] and $a.id < $b.id
+return {"arec": $a, "brec": $b, "jacc": $jacc[1] }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql
new file mode 100644
index 0000000..df0b75e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_01.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard_01.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql
new file mode 100644
index 0000000..1f227c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_02.aql
@@ -0,0 +1,40 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  CSX has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
+create index keyword_index on CSX(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard_02.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
+
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql
new file mode 100644
index 0000000..7a719ff
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_03.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard_03.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f
+      and $a.id < $b.id
+return {"arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql
new file mode 100644
index 0000000..077803b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/inverted-index-join/word-jaccard_04.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy self joins a dataset, DBLP, based on the similarity-jaccard function of its titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create index keyword_index on DBLP(title) type keyword;
+
+write output to nc1:"rttest/inverted-index-join_word-jaccard_04.adm";
+
+for $a in dataset('DBLP')
+for $b in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($a.title), word-tokens($b.title))
+where $jacc >= 0.5f and $a.id < $b.id
+return {"arec": $a, "brec": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/optimizerts/queries/join-super-key_01.aql b/asterix-app/src/test/resources/optimizerts/queries/join-super-key_01.aql
index f0251ad..52b35b8 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/join-super-key_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/join-super-key_01.aql
@@ -66,9 +66,9 @@
 write output to nc1:"/tmp/join-super-key_01.adm";
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_partkey, l_linenumber on group1;
+  primary key l_partkey, l_linenumber on group1;
 create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 for $li in dataset('LineItems')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/join-super-key_02.aql b/asterix-app/src/test/resources/optimizerts/queries/join-super-key_02.aql
index 0904f37..98f7e9e 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/join-super-key_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/join-super-key_02.aql
@@ -66,9 +66,9 @@
 write output to nc1:"/tmp/join-super-key_01.adm";
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_partkey, l_linenumber on group1;
+  primary key l_partkey, l_linenumber on group1;
 create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 for $ps in dataset('PartSupp')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_01.aql b/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_01.aql
index 1f43f73..4855576 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_01.aql
@@ -66,9 +66,9 @@
 write output to nc1:"/tmp/loj-super-key_01.adm";
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_partkey, l_linenumber on group1;
+  primary key l_partkey, l_linenumber on group1;
 create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 for $li in dataset('LineItems')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_02.aql b/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_02.aql
index ceab193..ce937c5 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/loj-super-key_02.aql
@@ -66,9 +66,9 @@
 write output to nc1:"/tmp/loj-super-key_01.adm";
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_partkey, l_linenumber on group1;
+  primary key l_partkey, l_linenumber on group1;
 create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 for $ps in dataset('PartSupp')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/nested_loj2.aql b/asterix-app/src/test/resources/optimizerts/queries/nested_loj2.aql
index 0b77f55..d235b09 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/nested_loj2.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/nested_loj2.aql
@@ -47,11 +47,11 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/nested_loj.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/nested_loj3.aql b/asterix-app/src/test/resources/optimizerts/queries/nested_loj3.aql
index 3a1ef04..1616a67 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/nested_loj3.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/nested_loj3.aql
@@ -57,13 +57,13 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 write output to nc1:"/tmp/nested_loj.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/noncollocated.aql b/asterix-app/src/test/resources/optimizerts/queries/noncollocated.aql
index 3aa1855..26b5ab0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/noncollocated.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/noncollocated.aql
@@ -21,10 +21,10 @@
 create nodegroup group2 if not exists on nc2;
 
 create dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 create dataset Visitors(VisitorType) 
-  partitioned by key vid on group2;
+  primary key vid on group2;
 
 
 write output to nc1:"/tmp/fuzzy1.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql b/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
index 682800c..8cef009 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
@@ -24,7 +24,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType) 
-  partitioned by key cid on group1;
+  primary key cid on group1;
   
 write output to nc1:"rttest/gby-using-orderby-desc.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-aggreg.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-aggreg.aql
index c2f96f6..960a8e6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orders-aggreg.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-aggreg.aql
@@ -16,7 +16,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Orders(OrderType)
-  partitioned by key oid on group1;
+  primary key oid on group1;
 
 write output to nc1:"/tmp/orders-aggreg.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-composite-index-search.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-composite-index-search.aql
new file mode 100644
index 0000000..73ec062
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-composite-index-search.aql
@@ -0,0 +1,30 @@
+drop dataverse index_search if exists;
+create dataverse index_search;
+use dataverse index_search;
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create dataset Orders(OrderType) primary key o_orderkey;
+
+create index idx_Custkey_Orderstatus on Orders(o_custkey, o_orderstatus);
+
+write output to nc1:"/tmp/index_search.adm";
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40 and $o.o_orderstatus = "P"
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey,
+  "o_orderstatus": $o.o_orderstatus
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_01.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_01.aql
new file mode 100644
index 0000000..b5aa50d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_01.aql
@@ -0,0 +1,40 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Orders(OrderType)
+  primary key o_orderkey on group1;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
+
+write output to nc1:"/tmp/index_search-conjunctive.adm";
+
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40 and $o.o_totalprice > 150000.0
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_02.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_02.aql
new file mode 100644
index 0000000..daef719
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive-open_02.aql
@@ -0,0 +1,41 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Orders(OrderType)
+  primary key o_orderkey on group1;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
+
+write output to nc1:"/tmp/index_search-conjunctive.adm";
+
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40 and $o.o_totalprice > 150000.0
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey,
+  "o_totalprice": $o.o_totalprice
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_01.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_01.aql
index f5b5067..21a7f5a 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_01.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_01.aql
@@ -19,11 +19,11 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 load dataset Orders 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1:///data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
 
 create index idx_Orders_Custkey on Orders(o_custkey);
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_02.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_02.aql
index fed390c..25a6d3f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_02.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-conjunctive_02.aql
@@ -19,7 +19,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 load dataset Orders 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-open.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-open.aql
new file mode 100644
index 0000000..31d41b6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search-open.aql
@@ -0,0 +1,35 @@
+drop dataverse index_search if exists;
+
+create dataverse index_search;
+
+use dataverse index_search;
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Orders(OrderType)
+  primary key o_orderkey on group1;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
+
+write output to nc1:"/tmp/index_search.adm";
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey 
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search.aql b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search.aql
index 75be90b..4e01059 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orders-index-search.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orders-index-search.aql
@@ -20,7 +20,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 create index idx_Orders_Custkey on Orders(o_custkey);
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search-open.aql b/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search-open.aql
new file mode 100644
index 0000000..1f6f887
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search-open.aql
@@ -0,0 +1,36 @@
+drop dataverse prim_index_search if exists;
+
+create dataverse prim_index_search;
+
+use dataverse prim_index_search;
+
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Orders(OrderType)
+  primary key o_orderkey on group1;
+
+
+write output to nc1:"/tmp/prim_index_search.adm";
+
+
+for $o in dataset('Orders')
+where
+  $o.o_orderkey = 34
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey 
+}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search.aql b/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search.aql
index 7a22597..7939fed 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/prim-idx-search.aql
@@ -21,7 +21,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 
 write output to nc1:"/tmp/prim_index_search.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/pull_select_above_eq_join.aql b/asterix-app/src/test/resources/optimizerts/queries/pull_select_above_eq_join.aql
index dfc05ff..ee998cf 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/pull_select_above_eq_join.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/pull_select_above_eq_join.aql
@@ -21,10 +21,10 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Users(UserType) 
-  partitioned by key uid on group1;
+  primary key uid on group1;
 
 create dataset Visitors(VisitorType) 
-  partitioned by key vid on group1;
+  primary key vid on group1;
 
 
 write output to nc1:"/tmp/pull-select-above-eq-join.adm";
diff --git a/asterix-app/src/test/resources/optimizerts/queries/push-project-through-group.aql b/asterix-app/src/test/resources/optimizerts/queries/push-project-through-group.aql
index 5dd229b..3c0235c 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/push-project-through-group.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/push-project-through-group.aql
@@ -15,7 +15,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset DBLP(DBLPType) 
-  partitioned by key id on group1;
+  primary key id on group1;
 
 
 write output to nc1:'rttest/fuzzyjoin_080.adm';
diff --git a/asterix-app/src/test/resources/optimizerts/queries/push_limit.aql b/asterix-app/src/test/resources/optimizerts/queries/push_limit.aql
index a9c4fe7..0ffe2b0 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/push_limit.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/push_limit.aql
@@ -16,7 +16,7 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 write output to nc1:"/tmp/push_limit.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/q1.aql b/asterix-app/src/test/resources/optimizerts/queries/q1.aql
index 8f62292..ced342d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/q1.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/q1.aql
@@ -27,7 +27,7 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 
-create dataset User(UserType) partitioned by key name on group1;
+create dataset User(UserType) primary key name on group1;
 
 write output to nc1:"/tmp/q1.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/q1_pricing_summary_report_nt.aql b/asterix-app/src/test/resources/optimizerts/queries/q1_pricing_summary_report_nt.aql
new file mode 100644
index 0000000..b6de1fa
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/q1_pricing_summary_report_nt.aql
@@ -0,0 +1,50 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+write output to nc1:"rttest/tpch_q1_pricing_summary_report_nt.adm";
+ 
+for $l in dataset('LineItem')
+where $l.l_shipdate <= '1998-09-02'
+/*+ hash*/
+group by $l_returnflag := $l.l_returnflag, $l_linestatus := $l.l_linestatus  
+  with $l
+order by $l_returnflag, $l_linestatus
+return {
+  "l_returnflag": $l_returnflag,
+  "l_linestatus": $l_linestatus,
+  "sum_qty": sum(for $i in $l return $i.l_quantity),
+  "sum_base_price": sum(for $i in $l return $i.l_extendedprice),
+  "sum_disc_price": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount)),
+  "sum_charge": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount) * (1 + $i.l_tax)),
+  "ave_qty": avg(for $i in $l return $i.l_quantity),  
+  "ave_price": avg(for $i in $l return $i.l_extendedprice),
+  "ave_disc": avg(for $i in $l return $i.l_discount),
+  "count_order": count($l)
+}   
diff --git a/asterix-app/src/test/resources/optimizerts/queries/q2.aql b/asterix-app/src/test/resources/optimizerts/queries/q2.aql
index 17b1f86..5fba695 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/q2.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/q2.aql
@@ -34,7 +34,7 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 
-create dataset Event(EventType) partitioned by key name on group1;
+create dataset Event(EventType) primary key name on group1;
 
 write output to nc1:"/tmp/q2.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/q3_shipping_priority.aql b/asterix-app/src/test/resources/optimizerts/queries/q3_shipping_priority.aql
index 89c6fd9..8e6bf6e6 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/q3_shipping_priority.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/q3_shipping_priority.aql
@@ -49,11 +49,11 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/q3_shipping_priority.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/q5_local_supplier_volume.aql b/asterix-app/src/test/resources/optimizerts/queries/q5_local_supplier_volume.aql
index 6b5ccfa..670a392 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/q5_local_supplier_volume.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/q5_local_supplier_volume.aql
@@ -72,17 +72,17 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 create dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 create dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 create dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 create dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
   
 write output to nc1:"/tmp/q5_local_supplier.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_01.aql b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_01.aql
new file mode 100644
index 0000000..e95be99
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_01.aql
@@ -0,0 +1,33 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData1' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData1(MyRecord) primary key id;
+create dataset MyData2(MyRecord) primary key id;
+
+create index rtree_index on MyData1(point) type rtree;
+
+write output to nc1:"rttest/index-join_rtree-spatial-intersect-point.adm";
+
+for $a in dataset('MyData1')
+for $b in dataset('MyData2')
+where spatial-intersect($a.point, $b.point)
+return {"a": $a, "b": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_02.aql b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_02.aql
new file mode 100644
index 0000000..c0a8634
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_02.aql
@@ -0,0 +1,33 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData2' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData1(MyRecord) primary key id;
+create dataset MyData2(MyRecord) primary key id;
+
+create index rtree_index on MyData2(point) type rtree;
+
+write output to nc1:"rttest/rtree-index-join_spatial-intersect-point_02.adm";
+
+for $a in dataset('MyData1')
+for $b in dataset('MyData2')
+where spatial-intersect($a.point, $b.point)
+return {"a": $a, "b": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_03.aql b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_03.aql
new file mode 100644
index 0000000..6fb79f3
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/rtree-index-join/spatial-intersect-point_03.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Self-joins a dataset on the intersection of its point attribute.
+ *                  The dataset has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData(MyRecord) primary key id;
+
+create index rtree_index on MyData(point) type rtree;
+
+write output to nc1:"rttest/rtree-index-join_spatial-intersect-point_03.adm";
+
+for $a in dataset('MyData')
+for $b in dataset('MyData')
+where spatial-intersect($a.point, $b.point)
+return {"a": $a, "b": $b}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index-open.aql b/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index-open.aql
new file mode 100644
index 0000000..b4a5796
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index-open.aql
@@ -0,0 +1,33 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create nodegroup group1  if not exists on nc1, nc2;
+
+create dataset MyData(MyRecord)
+  primary key id on group1;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
+
+create index rtree_index_point on MyData(point) type rtree;
+
+
+write output to nc1:"rttest/index_rtree-secondary-index-open.adm";
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(4.0,1.0), create-point(4.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index.aql b/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index.aql
index d525458..41a5a91 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/rtree-secondary-index.aql
@@ -10,13 +10,14 @@
   line2: line,
   poly1: polygon,
   poly2: polygon,
-  rec: rectangle
+  rec: rectangle,
+  circle: circle
 }
 
 create nodegroup group1  if not exists on nc1, nc2;
 
 create dataset MyData(MyRecord)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset MyData 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/optimizerts/queries/scan-delete-all.aql b/asterix-app/src/test/resources/optimizerts/queries/scan-delete-all.aql
index d30b7f8..7b8215f 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/scan-delete-all.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/scan-delete-all.aql
@@ -30,9 +30,9 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems_q1(LineItemType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 create dataset LineID(LineIDType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 delete $l from dataset LineItems_q1;
diff --git a/asterix-app/src/test/resources/optimizerts/queries/scan-delete-rtree-secondary-index.aql b/asterix-app/src/test/resources/optimizerts/queries/scan-delete-rtree-secondary-index.aql
index 5f1e8d3..a307a1d 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/scan-delete-rtree-secondary-index.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/scan-delete-rtree-secondary-index.aql
@@ -10,13 +10,14 @@
   line2: line,
   poly1: polygon,
   poly2: polygon,
-  rec: rectangle
+  rec: rectangle,
+  circle: circle
 }
 
 create nodegroup group1  if not exists on nc1, nc2;
 
 create dataset MyData(MyRecord)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset MyData 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/optimizerts/queries/scan-delete.aql b/asterix-app/src/test/resources/optimizerts/queries/scan-delete.aql
index 9bf6a4c..57e1bd3 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/scan-delete.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/scan-delete.aql
@@ -31,9 +31,9 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems_q1(LineItemType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 create dataset LineID(LineIDType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 delete $l from dataset LineItems_q1 where $l.l_shipdate <= '1998-09-02';
diff --git a/asterix-app/src/test/resources/optimizerts/queries/scan-insert-secondary-index.aql b/asterix-app/src/test/resources/optimizerts/queries/scan-insert-secondary-index.aql
index afecc04..97bc8df 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/scan-insert-secondary-index.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/scan-insert-secondary-index.aql
@@ -30,10 +30,10 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems_q1(LineItemType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 create dataset LineID(LineIDType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
   
 create index idx_LineID_partkey on LineID(l_partkey);
 create index idx_LineID_suppkey on LineID(l_suppkey);
diff --git a/asterix-app/src/test/resources/optimizerts/queries/scan-insert.aql b/asterix-app/src/test/resources/optimizerts/queries/scan-insert.aql
index beb73a7..1c26a46 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/scan-insert.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/scan-insert.aql
@@ -30,10 +30,10 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset LineItems_q1(LineItemType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 create dataset LineID(LineIDType)
-  partitioned by key l_orderkey on group1;
+  primary key l_orderkey on group1;
 
 insert into dataset LineID (
 for $l in dataset('LineItems_q1')
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql
new file mode 100644
index 0000000..4d63c15
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_01.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a "<=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_01.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where $ed <= 2
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql
new file mode 100644
index 0000000..762b41c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_02.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause. 
+ *                  Replacement should happen because of a reverse "<=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_02.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where 2 >= $ed
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql
new file mode 100644
index 0000000..e14f329
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_03.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a "<" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_03.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where $ed < 3
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql
new file mode 100644
index 0000000..f539938
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_04.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a reverse "<" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_04.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where 3 > $ed
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql
new file mode 100644
index 0000000..b126f67
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_05.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a ">=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_05.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where $ed >= 2
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql
new file mode 100644
index 0000000..f32285e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_06.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                   Replacement should *not* happen because of a reverse ">=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_06.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where 2 <= $ed
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql
new file mode 100644
index 0000000..2dff7e5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_07.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a ">" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_07.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where $ed > 2
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql
new file mode 100644
index 0000000..9bc10e6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-let-to-edit-distance-check_08.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a reverse ">" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-let-to-edit-distance-check_08.adm";
+
+for $o in dataset('DBLP')
+let $ed := edit-distance($o.authors, "Michael J. Carey")
+where 2 < $ed
+return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql
new file mode 100644
index 0000000..09e962c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_01.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should happen because of a "<=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_01.adm";
+
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Michael J. Carey") <= 2
+return $o
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql
new file mode 100644
index 0000000..35e28fc
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_02.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should happen because of a reverse "<=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_02.adm";
+
+for $o in dataset('DBLP')
+where 2 >= edit-distance($o.authors, "Michael J. Carey")
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql
new file mode 100644
index 0000000..e05f85a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_03.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should happen because of a "<" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_03.adm";
+
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Michael J. Carey") < 3
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql
new file mode 100644
index 0000000..b890967
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_04.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should happen because of a reverse "<" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_04.adm";
+
+for $o in dataset('DBLP')
+where 3 > edit-distance($o.authors, "Michael J. Carey")
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql
new file mode 100644
index 0000000..bc66061
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_05.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should *not* happen because of a ">=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_05.adm";
+
+// We cannot introduce edit-distance-check because the condition is >=
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Michael J. Carey") >= 2
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql
new file mode 100644
index 0000000..018d6d1
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_06.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should *not* happen because of a reverse ">=" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_06.adm";
+
+// We cannot introduce edit-distance-check because the condition is <=
+for $o in dataset('DBLP')
+where 2 <= edit-distance($o.authors, "Michael J. Carey")
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql
new file mode 100644
index 0000000..cdaefa9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_07.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should *not* happen because of a ">" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_07.adm";
+
+// We cannot introduce edit-distance-check because the condition is >
+for $o in dataset('DBLP')
+where edit-distance($o.authors, "Michael J. Carey") > 2
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql
new file mode 100644
index 0000000..745044f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/edit-distance-to-edit-distance-check_08.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the edit-distance function with a threshold 
+ *                  into edit-distance-check if possible.
+ *                  Replacement should *not* happen because of a reverse ">" condition on the edit distance.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_edit-distance-to-edit-distance-check_08.adm";
+
+// We cannot introduce edit-distance-check because the condition is <
+for $o in dataset('DBLP')
+where 2 < edit-distance($o.authors, "Michael J. Carey")
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql
new file mode 100644
index 0000000..f6e9d52
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-edit-distance-check.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests that the FuzzyEqRule rewrites ~= using edit distance 
+ *                  into edit-distance-check.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_fuzzyeq-to-edit-distance-check.adm";
+
+set simfunction 'edit-distance';
+set simthreshold '1';
+
+// Tests two rules: FuzzyEqRule and SimilarityCheckRule
+for $o in dataset('DBLP')
+where $o.authors ~= "Michael J. Carey"
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql
new file mode 100644
index 0000000..5f57a3e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/fuzzyeq-to-jaccard-check.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Tests that the FuzzyEqRule rewrites ~= using Jaccard 
+ *                  into edit-distance-check.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_fuzzyeq-to-jaccard-check.adm";
+
+set simfunction 'jaccard';
+set simthreshold '0.8f';
+
+// Tests two rules: FuzzyEqRule and SimilarityCheckRule
+for $paper in dataset('DBLP')
+where word-tokens($paper.title) ~= word-tokens("Transactions for Cooperative Environments")
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql
new file mode 100644
index 0000000..733c6d9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_01.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a ">=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where $jacc >= 0.8f
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql
new file mode 100644
index 0000000..a360ef1
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_02.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a reverse ">=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where 0.8f <= $jacc 
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql
new file mode 100644
index 0000000..ad8abca
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_03.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a ">" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where $jacc > 0.8f
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql
new file mode 100644
index 0000000..fd236de
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_04.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should happen because of a reverse ">" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where 0.8f < $jacc 
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql
new file mode 100644
index 0000000..b750a5d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_05.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a "<=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where $jacc <= 0.8f
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql
new file mode 100644
index 0000000..56b1471
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_06.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a reverse "<=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where 0.8f >= $jacc 
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql
new file mode 100644
index 0000000..6ae0444
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_07.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a "<" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where $jacc < 0.8f
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql
new file mode 100644
index 0000000..5d04402
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-let-to-jaccard-check_08.aql
@@ -0,0 +1,28 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Tests that the optimizer drills through the let clause.
+ *                  Replacement should *not* happen because of a reverse "<" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-let-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+let $jacc := similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+where 0.8f > $jacc 
+return $jacc
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql
new file mode 100644
index 0000000..33eb133
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_01.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should happen because of a ">=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_01.adm";
+
+for $paper in dataset('DBLP')
+where similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments")) >= 0.8f
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql
new file mode 100644
index 0000000..3bdf01f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_02.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should happen because of a reverse ">=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_02.adm";
+
+for $paper in dataset('DBLP')
+where 0.8f <= similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql
new file mode 100644
index 0000000..3a22a16
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_03.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should happen because of a ">" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_02.adm";
+
+for $paper in dataset('DBLP')
+where similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments")) > 0.8f
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql
new file mode 100644
index 0000000..bdce095
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_04.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should happen because of a reverse ">" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_03.adm";
+
+for $paper in dataset('DBLP')
+where 0.8f < similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql
new file mode 100644
index 0000000..977f22a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_05.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should *not* happen because of a "<=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_05.adm";
+
+// We cannot introduce jaccard-check because the condition is <=
+for $paper in dataset('DBLP')
+where similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments")) <= 0.8f
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql
new file mode 100644
index 0000000..eb3f3ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_06.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should *not* happen because of a reverse "<=" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_06.adm";
+
+// We cannot introduce jaccard-check because the condition is >=
+for $paper in dataset('DBLP')
+where 0.8f >= similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql
new file mode 100644
index 0000000..753ce3c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_07.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should *not* happen because of a "<" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_07.adm";
+
+// We cannot introduce jaccard-check because the condition is <
+for $paper in dataset('DBLP')
+where similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments")) < 0.8f
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql
new file mode 100644
index 0000000..2d1bd93
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/similarity/jaccard-to-jaccard-check_08.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Tests that the SimilarityCheckRule rewrites the similarity-jaccard function with a threshold 
+ *                  into similarity-jaccard-check-check if possible.
+ *                  Replacement should *not* happen because of a reverse "<" condition on the similarity.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+write output to nc1:"rttest/similarity_jaccard-to-jaccard-check_08.adm";
+
+// We cannot introduce jaccard-check because the condition is >
+for $paper in dataset('DBLP')
+where 0.8f > similarity-jaccard(word-tokens($paper.title), word-tokens("Transactions for Cooperative Environments"))
+return $paper
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/sort-cust.aql b/asterix-app/src/test/resources/optimizerts/queries/sort-cust.aql
index ec4f6f1..9605b37 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/sort-cust.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/sort-cust.aql
@@ -27,7 +27,7 @@
 create nodegroup group1 if not exists on nc1, nc2;
 
 create dataset Customers(CustomerType)
-  partitioned by key cid on group1;
+  primary key cid on group1;
 
 write output to nc1:"/tmp/custlimit.adm";
 
diff --git a/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_01.aql b/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_01.aql
new file mode 100644
index 0000000..85ee87a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_01.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests that non-datascan unnests are rewritten into joins.
+ * Success        : Yes
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/unnest-to-join_01.adm";
+
+for $x in [1,2,3,4,5,6]
+for $y in [4,5,6,7,8,9]
+where $x = $y
+return $y
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_02.aql b/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_02.aql
new file mode 100644
index 0000000..2402eb0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/queries/unnest-to-join_02.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Tests that non-datascan unnests in a subplan are rewritten into joins.
+ * Success        : Yes
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/unnest-to-join_02.adm";
+
+some $x in [1,2,3,4,5,6], $y in [4,5,6,7,8,9] satisfies $x = $y
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/queries/unnest_list_in_subplan.aql b/asterix-app/src/test/resources/optimizerts/queries/unnest_list_in_subplan.aql
index 5a943f1..3f34242 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/unnest_list_in_subplan.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/unnest_list_in_subplan.aql
@@ -17,8 +17,8 @@
 
 create nodegroup group1 if not exists on nc1, nc2;
 
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) partitioned by key rank on group1;
+create dataset DBLP(DBLPType) primary key id on group1;
+create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) primary key rank on group1;
 
 write output to nc1:'rttest/unnest_list_in_subplan.adm';
 
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-multipred.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-multipred.plan
new file mode 100644
index 0000000..5a5b715
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-multipred.plan
@@ -0,0 +1,18 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$15(ASC)]  |PARTITIONED|
+                      -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                        -- ASSIGN  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_01.plan
new file mode 100644
index 0000000..c81244a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_01.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- HYBRID_HASH_JOIN [$$7][$$10]  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+          -- HASH_PARTITION_EXCHANGE [$$10]  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_02.plan
new file mode 100644
index 0000000..abbed4a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join-neg_02.plan
@@ -0,0 +1,18 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- HYBRID_HASH_JOIN [$$9][$$8]  |PARTITIONED|
+          -- HASH_PARTITION_EXCHANGE [$$9]  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_01.plan
new file mode 100644
index 0000000..0f3828c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_01.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$10]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_02.plan
new file mode 100644
index 0000000..c1c1f33
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_02.plan
@@ -0,0 +1,14 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$9]  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_03.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_03.plan
new file mode 100644
index 0000000..2ecd027
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_03.plan
@@ -0,0 +1,16 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$11]  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_04.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_04.plan
new file mode 100644
index 0000000..2bc4b23
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_04.plan
@@ -0,0 +1,16 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$10]  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_05.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_05.plan
new file mode 100644
index 0000000..fa60146
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-equi-join_05.plan
@@ -0,0 +1,11 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_01.plan
new file mode 100644
index 0000000..0f0c06b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_01.plan
@@ -0,0 +1,13 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_02.plan
new file mode 100644
index 0000000..5cb2903
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-ge-join_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_01.plan
new file mode 100644
index 0000000..0f0c06b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_01.plan
@@ -0,0 +1,13 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_02.plan
new file mode 100644
index 0000000..5cb2903
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-gt-join_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_01.plan
new file mode 100644
index 0000000..0f0c06b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_01.plan
@@ -0,0 +1,13 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_02.plan
new file mode 100644
index 0000000..5cb2903
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-le-join_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_01.plan
new file mode 100644
index 0000000..0f0c06b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_01.plan
@@ -0,0 +1,13 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_02.plan
new file mode 100644
index 0000000..5cb2903
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/primary-lt-join_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- BROADCAST_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multiindex.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multiindex.plan
new file mode 100644
index 0000000..be64ee5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multiindex.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$29(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- BROADCAST_EXCHANGE  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- BTREE_SEARCH  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multipred.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multipred.plan
new file mode 100644
index 0000000..96632a5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join-multipred.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_01.plan
new file mode 100644
index 0000000..fac45f2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_01.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_02.plan
new file mode 100644
index 0000000..fac45f2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_02.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_03.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_03.plan
new file mode 100644
index 0000000..fac45f2
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index-join/secondary-equi-join_03.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-01.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-01.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-01.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-02.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-02.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-02.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-03.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-03.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-03.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-04.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-04.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-04.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-05.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-05.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-05.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-06.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-06.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-06.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-07.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-07.plan
new file mode 100644
index 0000000..426a99d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-07.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-08.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-08.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-08.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-09.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-09.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-09.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-10.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-10.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-10.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-11.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-11.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-11.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-12.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-12.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-12.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-13.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-13.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-13.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-14.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-14.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-14.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-15.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-15.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-15.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-16.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-16.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-16.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-17.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-17.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-17.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-18.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-18.plan
new file mode 100644
index 0000000..a78e43f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-18.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-19.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-19.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-19.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-20.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-20.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-20.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-21.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-21.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-21.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-22.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-22.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-22.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-23.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-23.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-23.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-24.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-24.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-24.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-25.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-25.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-25.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-26.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-26.plan
new file mode 100644
index 0000000..50b1c04
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-26.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- BTREE_SEARCH  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-27.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-27.plan
new file mode 100644
index 0000000..40853fa
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-27.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-28.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-28.plan
new file mode 100644
index 0000000..5021595
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-28.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-29.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-29.plan
new file mode 100644
index 0000000..5021595
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-29.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-30.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-30.plan
new file mode 100644
index 0000000..5021595
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-30.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-31.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-31.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-31.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-32.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-32.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-32.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-33.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-33.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-33.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-34.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-34.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-34.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-35.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-35.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-35.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-36.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-36.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-36.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-37.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-37.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-37.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-38.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-38.plan
new file mode 100644
index 0000000..2110116
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-38.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-39.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-39.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-39.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-40.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-40.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-40.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-41.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-41.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-41.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-42.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-42.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-42.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-43.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-43.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-43.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-44.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-44.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-44.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-45.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-45.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-45.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-46.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-46.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-46.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-47.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-47.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-47.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-48.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-48.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-48.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-49.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-49.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-49.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-50.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-50.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-50.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-51.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-51.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-51.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-52.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-52.plan
new file mode 100644
index 0000000..a48d23a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-52.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-53.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-53.plan
new file mode 100644
index 0000000..a48d23a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-53.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-54.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-54.plan
new file mode 100644
index 0000000..a48d23a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-54.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-55.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-55.plan
new file mode 100644
index 0000000..a48d23a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-55.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan
new file mode 100644
index 0000000..f18d0ad
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-56.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$12(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-57.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-57.plan
new file mode 100644
index 0000000..f18d0ad
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-57.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$12(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-58.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-58.plan
new file mode 100644
index 0000000..5b0ae2a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-58.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-59.plan b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-59.plan
new file mode 100644
index 0000000..7087a22
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/btree-index/btree-secondary-59.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-complex.plan b/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-complex.plan
new file mode 100644
index 0000000..8d2b4d8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-complex.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-simple.plan b/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-simple.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/consolidate-selects-simple.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/const-folding.plan b/asterix-app/src/test/resources/optimizerts/results/const-folding.plan
index 70e2daa..44b09f5 100644
--- a/asterix-app/src/test/resources/optimizerts/results/const-folding.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/const-folding.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
     -- ASSIGN  |UNPARTITIONED|
       -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/count-tweets.plan b/asterix-app/src/test/resources/optimizerts/results/count-tweets.plan
index 4f1d53f..f24833e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/count-tweets.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/count-tweets.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
@@ -9,17 +9,17 @@
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                   }
             -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$14(ASC)] HASH:[$$14]  |PARTITIONED|
-              -- PRE_CLUSTERED_GROUP_BY[$$4]  |LOCAL|
+              -- PRE_CLUSTERED_GROUP_BY[$$4]  |PARTITIONED|
                       {
                         -- AGGREGATE  |LOCAL|
                           -- NESTED_TUPLE_SOURCE  |LOCAL|
                       }
-                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                  -- STABLE_SORT [$$4(ASC)]  |LOCAL|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$4(ASC)]  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- UNNEST  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
                             -- ASSIGN  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- DATASOURCE_SCAN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/cust_group_no_agg.plan b/asterix-app/src/test/resources/optimizerts/results/cust_group_no_agg.plan
index 6559478..a1242ff 100644
--- a/asterix-app/src/test/resources/optimizerts/results/cust_group_no_agg.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/cust_group_no_agg.plan
@@ -1,18 +1,17 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- SORT_MERGE_EXCHANGE [$$1(ASC) ]  |PARTITIONED|
-    -- STREAM_PROJECT  |PARTITIONED|
+    -- PRE_CLUSTERED_GROUP_BY[$$6]  |PARTITIONED|
+            {
+              -- AGGREGATE  |LOCAL|
+                -- NESTED_TUPLE_SOURCE  |LOCAL|
+            }
       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-        -- PRE_CLUSTERED_GROUP_BY[$$6]  |PARTITIONED|
-                {
-                  -- AGGREGATE  |LOCAL|
-                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                }
-          -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-            -- STABLE_SORT [$$6(ASC)]  |LOCAL|
-              -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
+        -- STABLE_SORT [$$6(ASC)]  |PARTITIONED|
+          -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
                 -- STREAM_PROJECT  |PARTITIONED|
-                  -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- DATASOURCE_SCAN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/denorm-cust-order.plan b/asterix-app/src/test/resources/optimizerts/results/denorm-cust-order.plan
index 347a895..80f0a9d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/denorm-cust-order.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/denorm-cust-order.plan
@@ -1,26 +1,26 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$15]  |PARTITIONED|
+          -- PRE_CLUSTERED_GROUP_BY[$$16]  |PARTITIONED|
                   {
                     -- AGGREGATE  |LOCAL|
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                   }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$15(ASC)]  |LOCAL|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$15][$$19]  |PARTITIONED|
+                      -- HYBRID_HASH_JOIN [$$16][$$19]  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- DATASOURCE_SCAN  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
                         -- HASH_PARTITION_EXCHANGE [$$19]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ASSIGN  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- DATASOURCE_SCAN  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/fj-dblp-csx.plan b/asterix-app/src/test/resources/optimizerts/results/fj-dblp-csx.plan
index 3130442..4b9dcd4 100644
--- a/asterix-app/src/test/resources/optimizerts/results/fj-dblp-csx.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/fj-dblp-csx.plan
@@ -1,90 +1,93 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$18(ASC), $$19(ASC) ]  |PARTITIONED|
-        -- PRE_CLUSTERED_GROUP_BY[$$42, $$44]  |PARTITIONED|
-                {
-                  -- AGGREGATE  |LOCAL|
-                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                }
-          -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-            -- STABLE_SORT [$$42(ASC), $$44(ASC)]  |LOCAL|
-              -- HASH_PARTITION_EXCHANGE [$$42, $$44]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- HYBRID_HASH_JOIN [$$8][$$17]  |PARTITIONED|
-                      -- HASH_PARTITION_EXCHANGE [$$8]  |PARTITIONED|
-                        -- STREAM_PROJECT  |PARTITIONED|
-                          -- UNNEST  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- PRE_CLUSTERED_GROUP_BY[$$46]  |PARTITIONED|
-                                      {
-                                        -- AGGREGATE  |LOCAL|
-                                          -- STREAM_SELECT  |LOCAL|
-                                            -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                      }
-                                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                                  -- STABLE_SORT [$$46(ASC), $$6(ASC)]  |LOCAL|
-                                    -- HASH_PARTITION_EXCHANGE [$$46]  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- HYBRID_HASH_JOIN [$$4][$$26]  |PARTITIONED|
-                                            -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
-                                              -- STREAM_PROJECT  |PARTITIONED|
-                                                -- UNNEST  |PARTITIONED|
-                                                  -- ASSIGN  |PARTITIONED|
-                                                    -- ASSIGN  |PARTITIONED|
-                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                        -- DATASOURCE_SCAN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- STREAM_PROJECT  |UNPARTITIONED|
-                                                -- ASSIGN  |UNPARTITIONED|
-                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                    -- SPLIT  |PARTITIONED|
-                                                      -- HASH_PARTITION_EXCHANGE [$$35]  |PARTITIONED|
-                                                        -- RUNNING_AGGREGATE  |PARTITIONED|
-                                                          -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
-                                                            -- STREAM_PROJECT  |PARTITIONED|
-                                                              -- ASSIGN  |PARTITIONED|
-                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$18(ASC), $$19(ASC) ]  |PARTITIONED|
+          -- PRE_CLUSTERED_GROUP_BY[$$42, $$44]  |PARTITIONED|
+                  {
+                    -- AGGREGATE  |LOCAL|
+                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                  }
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$42(ASC), $$44(ASC)]  |PARTITIONED|
+                -- HASH_PARTITION_EXCHANGE [$$42, $$44]  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- HYBRID_HASH_JOIN [$$8][$$17]  |PARTITIONED|
+                        -- HASH_PARTITION_EXCHANGE [$$8]  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- UNNEST  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- PRE_CLUSTERED_GROUP_BY[$$46]  |PARTITIONED|
+                                        {
+                                          -- AGGREGATE  |LOCAL|
+                                            -- STREAM_SELECT  |LOCAL|
+                                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                        }
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$46(ASC), $$5(ASC)]  |PARTITIONED|
+                                      -- HASH_PARTITION_EXCHANGE [$$46]  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- HYBRID_HASH_JOIN [$$3][$$26]  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$3]  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- UNNEST  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |UNPARTITIONED|
+                                                  -- ASSIGN  |UNPARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- SPLIT  |PARTITIONED|
+                                                        -- HASH_PARTITION_EXCHANGE [$$35]  |PARTITIONED|
+                                                          -- RUNNING_AGGREGATE  |PARTITIONED|
+                                                            -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+                                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                                -- ASSIGN  |PARTITIONED|
+                                                                  -- STREAM_PROJECT  |PARTITIONED|
                                                                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                      -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
-                        -- STREAM_PROJECT  |PARTITIONED|
-                          -- UNNEST  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- PRE_CLUSTERED_GROUP_BY[$$47]  |PARTITIONED|
-                                      {
-                                        -- AGGREGATE  |LOCAL|
-                                          -- STREAM_SELECT  |LOCAL|
-                                            -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                      }
-                                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                                  -- STABLE_SORT [$$47(ASC), $$15(ASC)]  |LOCAL|
-                                    -- HASH_PARTITION_EXCHANGE [$$47]  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- HYBRID_HASH_JOIN [$$13][$$35]  |PARTITIONED|
-                                            -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
-                                              -- STREAM_PROJECT  |PARTITIONED|
-                                                -- UNNEST  |PARTITIONED|
-                                                  -- ASSIGN  |PARTITIONED|
-                                                    -- ASSIGN  |PARTITIONED|
-                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                        -- DATASOURCE_SCAN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- SPLIT  |PARTITIONED|
-                                                -- HASH_PARTITION_EXCHANGE [$$35]  |PARTITIONED|
-                                                  -- RUNNING_AGGREGATE  |PARTITIONED|
-                                                    -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
-                                                      -- STREAM_PROJECT  |PARTITIONED|
-                                                        -- ASSIGN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                        -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- UNNEST  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- PRE_CLUSTERED_GROUP_BY[$$47]  |PARTITIONED|
+                                        {
+                                          -- AGGREGATE  |LOCAL|
+                                            -- STREAM_SELECT  |LOCAL|
+                                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                        }
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$47(ASC), $$14(ASC)]  |PARTITIONED|
+                                      -- HASH_PARTITION_EXCHANGE [$$47]  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- HYBRID_HASH_JOIN [$$12][$$35]  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$12]  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- UNNEST  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- SPLIT  |PARTITIONED|
+                                                  -- HASH_PARTITION_EXCHANGE [$$35]  |PARTITIONED|
+                                                    -- RUNNING_AGGREGATE  |PARTITIONED|
+                                                      -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+                                                        -- STREAM_PROJECT  |PARTITIONED|
+                                                          -- ASSIGN  |PARTITIONED|
+                                                            -- STREAM_PROJECT  |PARTITIONED|
                                                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan b/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
index 3042fae..0b44c4d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
@@ -1,52 +1,56 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$23]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- STREAM_SELECT  |LOCAL|
-                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$23(ASC), $$7(ASC)]  |LOCAL|
-                -- HASH_PARTITION_EXCHANGE [$$23]  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$2][$$7]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$2]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- UNNEST  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- DATASOURCE_SCAN  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$7]  |PARTITIONED|
-                          -- RUNNING_AGGREGATE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$23]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- STREAM_SELECT  |LOCAL|
+                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$23(ASC), $$6(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$23]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$1][$$6]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$1]  |PARTITIONED|
                             -- STREAM_PROJECT  |PARTITIONED|
-                              -- SORT_MERGE_EXCHANGE [$$24(DESC) ]  |PARTITIONED|
-                                -- STABLE_SORT [$$24(DESC)]  |LOCAL|
-                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
-                                            {
-                                              -- AGGREGATE  |LOCAL|
-                                                -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                            }
-                                      -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$30(ASC)] HASH:[$$30]  |PARTITIONED|
-                                        -- PRE_CLUSTERED_GROUP_BY[$$6]  |LOCAL|
-                                                {
-                                                  -- AGGREGATE  |LOCAL|
-                                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                                }
-                                          -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                                            -- STABLE_SORT [$$6(ASC)]  |LOCAL|
-                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                -- STREAM_PROJECT  |PARTITIONED|
-                                                  -- UNNEST  |PARTITIONED|
-                                                    -- ASSIGN  |PARTITIONED|
-                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                        -- DATASOURCE_SCAN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                              -- UNNEST  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
+                            -- RUNNING_AGGREGATE  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
+                                -- SORT_MERGE_EXCHANGE [$$24(DESC) ]  |PARTITIONED|
+                                  -- STABLE_SORT [$$24(DESC)]  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- PRE_CLUSTERED_GROUP_BY[$$30]  |PARTITIONED|
+                                              {
+                                                -- AGGREGATE  |LOCAL|
+                                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                              }
+                                        -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$30(ASC)] HASH:[$$30]  |PARTITIONED|
+                                          -- PRE_CLUSTERED_GROUP_BY[$$5]  |PARTITIONED|
+                                                  {
+                                                    -- AGGREGATE  |LOCAL|
+                                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                  }
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- STABLE_SORT [$$5(ASC)]  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- STREAM_PROJECT  |PARTITIONED|
+                                                    -- UNNEST  |PARTITIONED|
+                                                      -- STREAM_PROJECT  |PARTITIONED|
+                                                        -- ASSIGN  |PARTITIONED|
+                                                          -- STREAM_PROJECT  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/fj-phase2-with-hints.plan b/asterix-app/src/test/resources/optimizerts/results/fj-phase2-with-hints.plan
index bac7a04..93fe350 100644
--- a/asterix-app/src/test/resources/optimizerts/results/fj-phase2-with-hints.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/fj-phase2-with-hints.plan
@@ -1,53 +1,57 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$31(ASC) ]  |PARTITIONED|
-        -- STABLE_SORT [$$31(ASC)]  |LOCAL|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- STREAM_PROJECT  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- SORT_MERGE_EXCHANGE [$$31(ASC) ]  |PARTITIONED|
+            -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- PRE_CLUSTERED_GROUP_BY[$$27]  |PARTITIONED|
-                        {
-                          -- AGGREGATE  |LOCAL|
-                            -- IN_MEMORY_STABLE_SORT [$$5(ASC)]  |LOCAL|
-                              -- STREAM_SELECT  |LOCAL|
-                                -- NESTED_TUPLE_SOURCE  |LOCAL|
-                        }
+                -- STREAM_PROJECT  |PARTITIONED|
                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- STREAM_PROJECT  |PARTITIONED|
+                    -- PRE_CLUSTERED_GROUP_BY[$$27]  |PARTITIONED|
+                            {
+                              -- AGGREGATE  |LOCAL|
+                                -- IN_MEMORY_STABLE_SORT [$$4(ASC)]  |LOCAL|
+                                  -- STREAM_SELECT  |LOCAL|
+                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
+                            }
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- IN_MEMORY_HASH_JOIN [$$3][$$8]  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- STREAM_PROJECT  |PARTITIONED|
-                              -- UNNEST  |PARTITIONED|
-                                -- ASSIGN  |PARTITIONED|
-                                  -- ASSIGN  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- IN_MEMORY_HASH_JOIN [$$2][$$7]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- UNNEST  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                          -- BROADCAST_EXCHANGE  |PARTITIONED|
-                            -- RUNNING_AGGREGATE  |PARTITIONED|
-                              -- STREAM_PROJECT  |PARTITIONED|
-                                -- SORT_MERGE_EXCHANGE [$$28(ASC), $$8(ASC) ]  |PARTITIONED|
-                                  -- STABLE_SORT [$$28(ASC), $$8(ASC)]  |LOCAL|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- EXTERNAL_GROUP_BY[$$36]  |PARTITIONED|
-                                              {
-                                                -- AGGREGATE  |LOCAL|
-                                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                              }
-                                        -- HASH_PARTITION_EXCHANGE [$$36]  |PARTITIONED|
-                                          -- EXTERNAL_GROUP_BY[$$7]  |LOCAL|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- RUNNING_AGGREGATE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- SORT_MERGE_EXCHANGE [$$28(ASC), $$7(ASC) ]  |PARTITIONED|
+                                      -- STABLE_SORT [$$28(ASC), $$7(ASC)]  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EXTERNAL_GROUP_BY[$$36]  |PARTITIONED|
                                                   {
                                                     -- AGGREGATE  |LOCAL|
                                                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                                                   }
-                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- STREAM_PROJECT  |PARTITIONED|
-                                                -- UNNEST  |PARTITIONED|
-                                                  -- ASSIGN  |PARTITIONED|
-                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                      -- DATASOURCE_SCAN  |PARTITIONED|
-                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                            -- HASH_PARTITION_EXCHANGE [$$36]  |PARTITIONED|
+                                              -- EXTERNAL_GROUP_BY[$$6]  |PARTITIONED|
+                                                      {
+                                                        -- AGGREGATE  |LOCAL|
+                                                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                      }
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- STREAM_PROJECT  |PARTITIONED|
+                                                    -- UNNEST  |PARTITIONED|
+                                                      -- STREAM_PROJECT  |PARTITIONED|
+                                                        -- ASSIGN  |PARTITIONED|
+                                                          -- STREAM_PROJECT  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inline-funs.plan b/asterix-app/src/test/resources/optimizerts/results/inline-funs.plan
index 70e2daa..44b09f5 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inline-funs.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inline-funs.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
     -- ASSIGN  |UNPARTITIONED|
       -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan b/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
index 81b10a9..0713f96 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
@@ -1,84 +1,87 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- ASSIGN  |UNPARTITIONED|
-      -- STREAM_LIMIT  |UNPARTITIONED|
-        -- SORT_MERGE_EXCHANGE [$$12(DESC), $$11(ASC) ]  |PARTITIONED|
-          -- STREAM_LIMIT  |LOCAL|
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$12(DESC), $$11(ASC)]  |LOCAL|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- PRE_CLUSTERED_GROUP_BY[$$73, $$74]  |PARTITIONED|
-                          {
-                            -- AGGREGATE  |LOCAL|
-                              -- NESTED_TUPLE_SOURCE  |LOCAL|
-                          }
-                    -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$73(ASC), $$74(ASC)] HASH:[$$73, $$74]  |PARTITIONED|
-                      -- PRE_CLUSTERED_GROUP_BY[$$54, $$55]  |LOCAL|
-                              {
-                                -- AGGREGATE  |LOCAL|
-                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
-                              }
-                        -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                          -- STABLE_SORT [$$54(ASC), $$55(ASC)]  |LOCAL|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STREAM_PROJECT  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- HYBRID_HASH_JOIN [$$55][$$58]  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- STREAM_PROJECT  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- HYBRID_HASH_JOIN [$$55][$$4]  |PARTITIONED|
-                                            -- HASH_PARTITION_EXCHANGE [$$55]  |PARTITIONED|
-                                              -- STREAM_PROJECT  |PARTITIONED|
-                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                  -- HYBRID_HASH_JOIN [$$54][$$63]  |PARTITIONED|
-                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                      -- STREAM_PROJECT  |PARTITIONED|
-                                                        -- ASSIGN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- DATASOURCE_SCAN  |PARTITIONED|
-                                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                                    -- HASH_PARTITION_EXCHANGE [$$63]  |PARTITIONED|
-                                                      -- STREAM_PROJECT  |PARTITIONED|
-                                                        -- ASSIGN  |PARTITIONED|
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- DATASOURCE_SCAN  |PARTITIONED|
-                                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                            -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
-                                              -- STREAM_PROJECT  |PARTITIONED|
-                                                -- STREAM_SELECT  |PARTITIONED|
-                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                    -- PRE_CLUSTERED_GROUP_BY[$$70]  |PARTITIONED|
-                                                            {
-                                                              -- AGGREGATE  |LOCAL|
-                                                                -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                                            }
-                                                      -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$70(ASC)] HASH:[$$70]  |PARTITIONED|
-                                                        -- PRE_CLUSTERED_GROUP_BY[$$56]  |LOCAL|
-                                                                {
-                                                                  -- AGGREGATE  |LOCAL|
-                                                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                                                }
-                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- SPLIT  |PARTITIONED|
-                                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                -- STREAM_PROJECT  |PARTITIONED|
-                                                                  -- ASSIGN  |PARTITIONED|
-                                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                      -- DATASOURCE_SCAN  |PARTITIONED|
-                                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                    -- HASH_PARTITION_EXCHANGE [$$58]  |PARTITIONED|
-                                      -- STREAM_PROJECT  |UNPARTITIONED|
-                                        -- ASSIGN  |UNPARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ASSIGN  |UNPARTITIONED|
+        -- STREAM_LIMIT  |UNPARTITIONED|
+          -- SORT_MERGE_EXCHANGE [$$12(DESC), $$11(ASC) ]  |PARTITIONED|
+            -- STREAM_LIMIT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$12(DESC), $$11(ASC)]  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- PRE_CLUSTERED_GROUP_BY[$$72, $$73]  |PARTITIONED|
+                            {
+                              -- AGGREGATE  |LOCAL|
+                                -- NESTED_TUPLE_SOURCE  |LOCAL|
+                            }
+                      -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$72(ASC), $$73(ASC)] HASH:[$$72, $$73]  |PARTITIONED|
+                        -- PRE_CLUSTERED_GROUP_BY[$$56, $$57]  |PARTITIONED|
+                                {
+                                  -- AGGREGATE  |LOCAL|
+                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                }
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$56(ASC), $$57(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- HYBRID_HASH_JOIN [$$57][$$60]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- SPLIT  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- HYBRID_HASH_JOIN [$$57][$$4]  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$57]  |PARTITIONED|
                                                 -- STREAM_PROJECT  |PARTITIONED|
-                                                  -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- HYBRID_HASH_JOIN [$$56][$$64]  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                        -- STREAM_PROJECT  |PARTITIONED|
+                                                          -- ASSIGN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                      -- HASH_PARTITION_EXCHANGE [$$64]  |PARTITIONED|
+                                                        -- STREAM_PROJECT  |PARTITIONED|
+                                                          -- ASSIGN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- STREAM_SELECT  |PARTITIONED|
                                                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                      -- PRE_CLUSTERED_GROUP_BY[$$69]  |PARTITIONED|
+                                                              {
+                                                                -- AGGREGATE  |LOCAL|
+                                                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                              }
+                                                        -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$69(ASC)] HASH:[$$69]  |PARTITIONED|
+                                                          -- PRE_CLUSTERED_GROUP_BY[$$58]  |PARTITIONED|
+                                                                  {
+                                                                    -- AGGREGATE  |LOCAL|
+                                                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                                                  }
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- SPLIT  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- STREAM_PROJECT  |PARTITIONED|
+                                                                    -- ASSIGN  |PARTITIONED|
+                                                                      -- STREAM_PROJECT  |PARTITIONED|
+                                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                      -- HASH_PARTITION_EXCHANGE [$$60]  |PARTITIONED|
+                                        -- STREAM_PROJECT  |UNPARTITIONED|
+                                          -- ASSIGN  |UNPARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- SPLIT  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- STREAM_PROJECT  |PARTITIONED|
+                                                    -- ASSIGN  |PARTITIONED|
+                                                      -- STREAM_PROJECT  |PARTITIONED|
                                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/introhashpartitionmerge.plan b/asterix-app/src/test/resources/optimizerts/results/introhashpartitionmerge.plan
index 097c0df..0a6a802 100644
--- a/asterix-app/src/test/resources/optimizerts/results/introhashpartitionmerge.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/introhashpartitionmerge.plan
@@ -1,6 +1,6 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- SORT_MERGE_EXCHANGE [$$13(ASC) ]  |PARTITIONED|
-    -- STABLE_SORT [$$13(ASC)]  |LOCAL|
+    -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
         -- STREAM_PROJECT  |PARTITIONED|
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
@@ -8,10 +8,11 @@
               -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
                 -- STREAM_PROJECT  |PARTITIONED|
                   -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
               -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$13(ASC)] HASH:[$$16]  |PARTITIONED|
                 -- STREAM_PROJECT  |PARTITIONED|
                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains-panic.plan
new file mode 100644
index 0000000..b16fcf8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains-panic.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$5(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan
new file mode 100644
index 0000000..84bc4de
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$5(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check-panic.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check-panic.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan
new file mode 100644
index 0000000..7aa19a6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-panic.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-panic.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan
new file mode 100644
index 0000000..7aa19a6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan
new file mode 100644
index 0000000..b5ea9d7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$7(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check-panic.plan
new file mode 100644
index 0000000..6139d4c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check-panic.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan
new file mode 100644
index 0000000..7e8a594
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-panic.plan
new file mode 100644
index 0000000..6139d4c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-panic.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan
new file mode 100644
index 0000000..7e8a594
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan
new file mode 100644
index 0000000..5eef58e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$6(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..7aa19a6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..7aa19a6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$8(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-contains.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-contains.plan
new file mode 100644
index 0000000..b16fcf8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-contains.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$5(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan
new file mode 100644
index 0000000..96697b6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$14(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan
new file mode 100644
index 0000000..96697b6
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- STREAM_SELECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$14(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan
new file mode 100644
index 0000000..504d5bf
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan
new file mode 100644
index 0000000..7ae3ecd
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan
new file mode 100644
index 0000000..db4c5c5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan
@@ -0,0 +1,19 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- BTREE_SEARCH  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let-panic.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let-panic.plan
new file mode 100644
index 0000000..503fd28
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let-panic.plan
@@ -0,0 +1,9 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$8(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- DATASOURCE_SCAN  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan
new file mode 100644
index 0000000..a1a1253
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan
@@ -0,0 +1,17 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- SORT_MERGE_EXCHANGE [$$8(ASC) ]  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- BTREE_SEARCH  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$12(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan
new file mode 100644
index 0000000..f0adce8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan
new file mode 100644
index 0000000..7ae3ecd
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan
@@ -0,0 +1,15 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- BTREE_SEARCH  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan
new file mode 100644
index 0000000..db4c5c5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan
@@ -0,0 +1,19 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- BTREE_SEARCH  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan
new file mode 100644
index 0000000..73ba563
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                      -- STREAM_SELECT  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- SPLIT  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_SELECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- NESTED_LOOP  |PARTITIONED|
+                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_SELECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- SPLIT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan
new file mode 100644
index 0000000..37d4f2c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan
@@ -0,0 +1,52 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- NESTED_LOOP  |PARTITIONED|
+                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_SELECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- SPLIT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan
new file mode 100644
index 0000000..22cb67b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan
@@ -0,0 +1,52 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- NESTED_LOOP  |PARTITIONED|
+                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_SELECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- SPLIT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..df958f7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan
new file mode 100644
index 0000000..50966d0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan
new file mode 100644
index 0000000..0bb698c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan
new file mode 100644
index 0000000..73ba563
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- BTREE_SEARCH  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                      -- STREAM_SELECT  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- SPLIT  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- ASSIGN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_SELECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- NESTED_LOOP  |PARTITIONED|
+                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_SELECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- SPLIT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan
new file mode 100644
index 0000000..37d4f2c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan
@@ -0,0 +1,52 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- NESTED_LOOP  |PARTITIONED|
+                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_SELECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- SPLIT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan
new file mode 100644
index 0000000..22cb67b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan
@@ -0,0 +1,52 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- UNION_ALL  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ASSIGN  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- NESTED_LOOP  |PARTITIONED|
+                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_SELECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- SPLIT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..294d740
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan
new file mode 100644
index 0000000..141fd9d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan
new file mode 100644
index 0000000..a70fe23
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..294d740
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan
new file mode 100644
index 0000000..141fd9d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan
new file mode 100644
index 0000000..a70fe23
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan
new file mode 100644
index 0000000..df958f7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan
new file mode 100644
index 0000000..50966d0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- BTREE_SEARCH  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan
new file mode 100644
index 0000000..0bb698c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan
@@ -0,0 +1,22 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan
new file mode 100644
index 0000000..2181d95
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan
new file mode 100644
index 0000000..dc42118
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan
@@ -0,0 +1,59 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_SELECT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- SPLIT  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- NESTED_LOOP  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan
new file mode 100644
index 0000000..2181d95
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan
new file mode 100644
index 0000000..43dbff9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan
@@ -0,0 +1,59 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_SELECT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- SPLIT  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- NESTED_LOOP  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan
new file mode 100644
index 0000000..25c87b0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$12]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$12]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan
new file mode 100644
index 0000000..98aa0ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan
new file mode 100644
index 0000000..98aa0ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan
new file mode 100644
index 0000000..700ebb7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan
new file mode 100644
index 0000000..69948aa
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan
new file mode 100644
index 0000000..700ebb7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan
new file mode 100644
index 0000000..d23a6f5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan
new file mode 100644
index 0000000..1d1cd5f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$28][$$18]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$18]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan
new file mode 100644
index 0000000..d23a6f5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan
new file mode 100644
index 0000000..d1b8f79
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$28][$$17]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan
new file mode 100644
index 0000000..2181d95
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan
new file mode 100644
index 0000000..dc42118
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan
@@ -0,0 +1,59 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_SELECT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- SPLIT  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- NESTED_LOOP  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan
new file mode 100644
index 0000000..2181d95
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan
new file mode 100644
index 0000000..63c5436
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan
new file mode 100644
index 0000000..43dbff9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan
@@ -0,0 +1,59 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_SELECT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- SPLIT  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- STREAM_PROJECT  |PARTITIONED|
+                                                      -- ASSIGN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ASSIGN  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- NESTED_LOOP  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_SELECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- SPLIT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan
new file mode 100644
index 0000000..98aa0ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan
new file mode 100644
index 0000000..25c87b0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$12]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$12]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan
new file mode 100644
index 0000000..98aa0ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan
@@ -0,0 +1,55 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- UNION_ALL  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- SPLIT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- NESTED_LOOP  |PARTITIONED|
+                          -- BROADCAST_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_SELECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- SPLIT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan
new file mode 100644
index 0000000..4cef1ae
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan
new file mode 100644
index 0000000..a21a7b5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$12]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$12]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan
new file mode 100644
index 0000000..4cef1ae
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan
new file mode 100644
index 0000000..6d8460a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan
new file mode 100644
index 0000000..4a4430c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan
new file mode 100644
index 0000000..6d8460a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan
new file mode 100644
index 0000000..b6a694e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan
new file mode 100644
index 0000000..4cef1ae
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan
new file mode 100644
index 0000000..a21a7b5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$12]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$12]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan
new file mode 100644
index 0000000..4cef1ae
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$20][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan
new file mode 100644
index 0000000..6d8460a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan
new file mode 100644
index 0000000..4a4430c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan
new file mode 100644
index 0000000..6d8460a
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$13]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan
new file mode 100644
index 0000000..44328ef
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$21][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan
new file mode 100644
index 0000000..b6a694e
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$26][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan
new file mode 100644
index 0000000..700ebb7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan
new file mode 100644
index 0000000..69948aa
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$14]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan
new file mode 100644
index 0000000..700ebb7
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$22][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan
new file mode 100644
index 0000000..b77169d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan
new file mode 100644
index 0000000..1d1cd5f
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$28][$$18]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$18]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan
new file mode 100644
index 0000000..d23a6f5
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$15]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan
new file mode 100644
index 0000000..901e0f4
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan
@@ -0,0 +1,28 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$23][$$16]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- BTREE_SEARCH  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ASSIGN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- DATASOURCE_SCAN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan
new file mode 100644
index 0000000..d1b8f79
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan
@@ -0,0 +1,30 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$28][$$17]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- DATASOURCE_SCAN  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- STREAM_SELECT  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- BTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                      -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/join-super-key_01.plan b/asterix-app/src/test/resources/optimizerts/results/join-super-key_01.plan
index ac5a3a8..011f8be 100644
--- a/asterix-app/src/test/resources/optimizerts/results/join-super-key_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/join-super-key_01.plan
@@ -1,20 +1,22 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- HYBRID_HASH_JOIN [$$20, $$22, $$16][$$19, $$23, $$18]  |PARTITIONED|
-            -- HASH_PARTITION_EXCHANGE [$$16, $$20, $$22]  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$17, $$22, $$24][$$19, $$23, $$20]  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$17, $$22, $$24]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-            -- HASH_PARTITION_EXCHANGE [$$19, $$18, $$23]  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$19, $$23, $$20]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/join-super-key_02.plan b/asterix-app/src/test/resources/optimizerts/results/join-super-key_02.plan
index eb5e8c8..591ddbf 100644
--- a/asterix-app/src/test/resources/optimizerts/results/join-super-key_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/join-super-key_02.plan
@@ -1,20 +1,22 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- HYBRID_HASH_JOIN [$$17, $$23, $$16][$$20, $$22, $$18]  |PARTITIONED|
-            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$17, $$23, $$18][$$19, $$22, $$24]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$19, $$24]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-            -- HASH_PARTITION_EXCHANGE [$$18, $$20]  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/loj-super-key_01.plan b/asterix-app/src/test/resources/optimizerts/results/loj-super-key_01.plan
index 69d63d5..7dac263 100644
--- a/asterix-app/src/test/resources/optimizerts/results/loj-super-key_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/loj-super-key_01.plan
@@ -1,29 +1,30 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$22, $$23]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- STREAM_SELECT  |LOCAL|
-                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$22(ASC), $$23(ASC)]  |LOCAL|
-                -- HASH_PARTITION_EXCHANGE [$$23, $$22]  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$24, $$22, $$28][$$25, $$19, $$20]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$22, $$24, $$28]  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- DATASOURCE_SCAN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$19, $$20, $$25]  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- DATASOURCE_SCAN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$22, $$23]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- STREAM_SELECT  |LOCAL|
+                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$22(ASC), $$23(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$22, $$23]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$24, $$22, $$28][$$25, $$19, $$20]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$24, $$22, $$28]  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$25, $$19, $$20]  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/loj-super-key_02.plan b/asterix-app/src/test/resources/optimizerts/results/loj-super-key_02.plan
index 7b0bf69..63a3b4e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/loj-super-key_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/loj-super-key_02.plan
@@ -1,30 +1,31 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$22, $$23]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- STREAM_SELECT  |LOCAL|
-                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$22(ASC), $$23(ASC)]  |LOCAL|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$25, $$22, $$23][$$24, $$19, $$28]  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- DATASOURCE_SCAN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$19, $$28]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$22, $$23]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- STREAM_SELECT  |LOCAL|
+                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$22(ASC), $$23(ASC)]  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$25, $$22, $$23][$$24, $$19, $$28]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- ASSIGN  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- DATASOURCE_SCAN  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$19, $$28]  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/nested_loj2.plan b/asterix-app/src/test/resources/optimizerts/results/nested_loj2.plan
index a203f14..f0e1d55 100644
--- a/asterix-app/src/test/resources/optimizerts/results/nested_loj2.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/nested_loj2.plan
@@ -1,44 +1,45 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$25]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- MICRO_PRE_CLUSTERED_GROUP_BY[$$23]  |LOCAL|
-                              {
-                                -- AGGREGATE  |LOCAL|
-                                  -- STREAM_SELECT  |LOCAL|
-                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                              }
-                        -- STREAM_SELECT  |LOCAL|
-                          -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$25(ASC), $$23(ASC)]  |LOCAL|
-                -- HASH_PARTITION_EXCHANGE [$$25]  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$23][$$20]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$23]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- HYBRID_HASH_JOIN [$$25][$$26]  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$25]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- MICRO_PRE_CLUSTERED_GROUP_BY[$$23]  |LOCAL|
+                                {
+                                  -- AGGREGATE  |LOCAL|
+                                    -- STREAM_SELECT  |LOCAL|
+                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                }
+                          -- STREAM_SELECT  |LOCAL|
+                            -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$25(ASC), $$23(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$25]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$23][$$20]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$23]  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- HYBRID_HASH_JOIN [$$25][$$26]  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- HASH_PARTITION_EXCHANGE [$$26]  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$20]  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                   -- DATASOURCE_SCAN  |PARTITIONED|
                                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                       -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                -- HASH_PARTITION_EXCHANGE [$$26]  |PARTITIONED|
-                                  -- ASSIGN  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- DATASOURCE_SCAN  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$20]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ASSIGN  |PARTITIONED|
-                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- DATASOURCE_SCAN  |PARTITIONED|
-                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/nested_loj3.plan b/asterix-app/src/test/resources/optimizerts/results/nested_loj3.plan
index 17cae26..b68ef76 100644
--- a/asterix-app/src/test/resources/optimizerts/results/nested_loj3.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/nested_loj3.plan
@@ -1,59 +1,60 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$42]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- MICRO_PRE_CLUSTERED_GROUP_BY[$$40]  |LOCAL|
-                              {
-                                -- AGGREGATE  |LOCAL|
-                                  -- MICRO_PRE_CLUSTERED_GROUP_BY[$$37, $$38]  |LOCAL|
-                                          {
-                                            -- AGGREGATE  |LOCAL|
-                                              -- STREAM_SELECT  |LOCAL|
-                                                -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                          }
-                                    -- IN_MEMORY_STABLE_SORT [$$37(ASC), $$38(ASC)]  |LOCAL|
-                                      -- STREAM_SELECT  |LOCAL|
-                                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                              }
-                        -- IN_MEMORY_STABLE_SORT [$$40(ASC), $$38(ASC)]  |LOCAL|
-                          -- STREAM_SELECT  |LOCAL|
-                            -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$42(ASC), $$40(ASC)]  |LOCAL|
-                -- HASH_PARTITION_EXCHANGE [$$42]  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$48, $$50][$$34, $$35]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$50, $$48]  |PARTITIONED|
-                          -- HYBRID_HASH_JOIN [$$40][$$37]  |PARTITIONED|
-                            -- HASH_PARTITION_EXCHANGE [$$40]  |PARTITIONED|
-                              -- STREAM_PROJECT  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- HYBRID_HASH_JOIN [$$42][$$43]  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- DATASOURCE_SCAN  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                    -- HASH_PARTITION_EXCHANGE [$$43]  |PARTITIONED|
-                                      -- ASSIGN  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- DATASOURCE_SCAN  |PARTITIONED|
-                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                            -- HASH_PARTITION_EXCHANGE [$$37]  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- DATASOURCE_SCAN  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- DATASOURCE_SCAN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$42]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- MICRO_PRE_CLUSTERED_GROUP_BY[$$40]  |LOCAL|
+                                {
+                                  -- AGGREGATE  |LOCAL|
+                                    -- MICRO_PRE_CLUSTERED_GROUP_BY[$$37, $$38]  |LOCAL|
+                                            {
+                                              -- AGGREGATE  |LOCAL|
+                                                -- STREAM_SELECT  |LOCAL|
+                                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                            }
+                                      -- IN_MEMORY_STABLE_SORT [$$37(ASC), $$38(ASC)]  |LOCAL|
+                                        -- STREAM_SELECT  |LOCAL|
+                                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                }
+                          -- IN_MEMORY_STABLE_SORT [$$40(ASC), $$38(ASC)]  |LOCAL|
+                            -- STREAM_SELECT  |LOCAL|
+                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$42(ASC), $$40(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$42]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$48, $$50][$$34, $$35]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$48, $$50]  |PARTITIONED|
+                            -- HYBRID_HASH_JOIN [$$40][$$37]  |PARTITIONED|
+                              -- HASH_PARTITION_EXCHANGE [$$40]  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- HYBRID_HASH_JOIN [$$42][$$43]  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                      -- HASH_PARTITION_EXCHANGE [$$43]  |PARTITIONED|
+                                        -- ASSIGN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- DATASOURCE_SCAN  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                              -- HASH_PARTITION_EXCHANGE [$$37]  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- ASSIGN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/noncollocated.plan b/asterix-app/src/test/resources/optimizerts/results/noncollocated.plan
index 32a0b06..f1e1f5d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/noncollocated.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/noncollocated.plan
@@ -1,20 +1,21 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- HYBRID_HASH_JOIN [$$10][$$11]  |PARTITIONED|
-            -- HASH_PARTITION_EXCHANGE [$$10]  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-            -- HASH_PARTITION_EXCHANGE [$$11]  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- HYBRID_HASH_JOIN [$$10][$$11]  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$10]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+              -- HASH_PARTITION_EXCHANGE [$$11]  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orderby-desc-using-gby.plan b/asterix-app/src/test/resources/optimizerts/results/orderby-desc-using-gby.plan
index 671187a..a598ebb 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orderby-desc-using-gby.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orderby-desc-using-gby.plan
@@ -1,18 +1,20 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$1(DESC) ]  |PARTITIONED|
-        -- PRE_CLUSTERED_GROUP_BY[$$9]  |PARTITIONED|
-                {
-                  -- AGGREGATE  |LOCAL|
-                    -- NESTED_TUPLE_SOURCE  |LOCAL|
-                }
-          -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-            -- STABLE_SORT [$$9(DESC)]  |LOCAL|
-              -- HASH_PARTITION_EXCHANGE [$$9]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$1(DESC) ]  |PARTITIONED|
+          -- PRE_CLUSTERED_GROUP_BY[$$9]  |PARTITIONED|
+                  {
+                    -- AGGREGATE  |LOCAL|
+                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                  }
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$9(DESC)]  |PARTITIONED|
+                -- HASH_PARTITION_EXCHANGE [$$9]  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan b/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
index df2a96e..f32df8e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-aggreg.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
@@ -9,16 +9,16 @@
                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                   }
             -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$24(ASC)] HASH:[$$24]  |PARTITIONED|
-              -- PRE_CLUSTERED_GROUP_BY[$$16]  |LOCAL|
+              -- PRE_CLUSTERED_GROUP_BY[$$16]  |PARTITIONED|
                       {
                         -- AGGREGATE  |LOCAL|
                           -- NESTED_TUPLE_SOURCE  |LOCAL|
                       }
-                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                  -- STABLE_SORT [$$16(ASC)]  |LOCAL|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- STABLE_SORT [$$16(ASC)]  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ASSIGN  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- DATASOURCE_SCAN  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-composite-index-search.plan b/asterix-app/src/test/resources/optimizerts/results/orders-composite-index-search.plan
new file mode 100644
index 0000000..089064b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-composite-index-search.plan
@@ -0,0 +1,19 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- BTREE_SEARCH  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STABLE_SORT [$$21(ASC)]  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- BTREE_SEARCH  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_01.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_01.plan
new file mode 100644
index 0000000..12aeed9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_01.plan
@@ -0,0 +1,20 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$12(ASC) ]  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- STREAM_SELECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$19(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_02.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_02.plan
new file mode 100644
index 0000000..6e92969
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive-open_02.plan
@@ -0,0 +1,20 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$14(ASC) ]  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_01.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_01.plan
index 6c99d34..12aeed9 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_01.plan
@@ -1,18 +1,20 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$11(ASC) ]  |PARTITIONED|
-        -- STREAM_PROJECT  |PARTITIONED|
-          -- STREAM_SELECT  |PARTITIONED|
-            -- ASSIGN  |PARTITIONED|
-              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- BTREE_SEARCH  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                    -- STABLE_SORT [$$19(ASC)]  |LOCAL|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$12(ASC) ]  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- STREAM_SELECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- STREAM_PROJECT  |PARTITIONED|
+                        -- STABLE_SORT [$$19(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- BTREE_SEARCH  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- ASSIGN  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_02.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_02.plan
index 7aff2c2..6e92969 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-conjunctive_02.plan
@@ -1,18 +1,20 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$12(ASC) ]  |PARTITIONED|
-        -- STREAM_PROJECT  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$14(ASC) ]  |PARTITIONED|
           -- STREAM_SELECT  |PARTITIONED|
-            -- ASSIGN  |PARTITIONED|
-              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- BTREE_SEARCH  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                    -- STABLE_SORT [$$21(ASC)]  |LOCAL|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- BTREE_SEARCH  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- STREAM_PROJECT  |PARTITIONED|
+                        -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- BTREE_SEARCH  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- ASSIGN  |PARTITIONED|
-                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                -- BTREE_SEARCH  |PARTITIONED|
+                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan
new file mode 100644
index 0000000..66b693c
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search-open.plan
@@ -0,0 +1,19 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- BTREE_SEARCH  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- BTREE_SEARCH  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/orders-index-search.plan b/asterix-app/src/test/resources/optimizerts/results/orders-index-search.plan
index ce5cbbf..66b693c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/orders-index-search.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/orders-index-search.plan
@@ -1,16 +1,19 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ASSIGN  |PARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- BTREE_SEARCH  |PARTITIONED|
-              -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                -- STABLE_SORT [$$13(ASC)]  |LOCAL|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- STREAM_PROJECT  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- BTREE_SEARCH  |PARTITIONED|
-                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- ASSIGN  |PARTITIONED|
-                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- BTREE_SEARCH  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STABLE_SORT [$$13(ASC)]  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- BTREE_SEARCH  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/prim-idx-search-open.plan b/asterix-app/src/test/resources/optimizerts/results/prim-idx-search-open.plan
new file mode 100644
index 0000000..e8b196d
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/prim-idx-search-open.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- BTREE_SEARCH  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/prim-idx-search.plan b/asterix-app/src/test/resources/optimizerts/results/prim-idx-search.plan
index 4ac0fda..e8b196d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/prim-idx-search.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/prim-idx-search.plan
@@ -1,8 +1,8 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
             -- BTREE_SEARCH  |PARTITIONED|
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/pull_select_above_eq_join.plan b/asterix-app/src/test/resources/optimizerts/results/pull_select_above_eq_join.plan
index a82190a..d50a885 100644
--- a/asterix-app/src/test/resources/optimizerts/results/pull_select_above_eq_join.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/pull_select_above_eq_join.plan
@@ -1,21 +1,23 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- STREAM_SELECT  |UNPARTITIONED|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- HYBRID_HASH_JOIN [$$18][$$19]  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$18]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- HYBRID_HASH_JOIN [$$18][$$19]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$18]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-              -- HASH_PARTITION_EXCHANGE [$$19]  |PARTITIONED|
-                -- STREAM_PROJECT  |PARTITIONED|
-                  -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$19]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/push-project-through-group.plan b/asterix-app/src/test/resources/optimizerts/results/push-project-through-group.plan
index e74eaee..94273ad 100644
--- a/asterix-app/src/test/resources/optimizerts/results/push-project-through-group.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/push-project-through-group.plan
@@ -1,31 +1,33 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-          -- PRE_CLUSTERED_GROUP_BY[$$15]  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- STREAM_SELECT  |LOCAL|
-                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$15(ASC)]  |LOCAL|
-                -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$17][$$16]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ASSIGN  |PARTITIONED|
-                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- DATASOURCE_SCAN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+            -- PRE_CLUSTERED_GROUP_BY[$$15]  |PARTITIONED|
+                    {
+                      -- AGGREGATE  |LOCAL|
+                        -- STREAM_SELECT  |LOCAL|
+                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                    }
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$15(ASC)]  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$15]  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$17][$$16]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$17]  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
+                            -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$16]  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
-                            -- ASSIGN  |PARTITIONED|
-                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- DATASOURCE_SCAN  |PARTITIONED|
-                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                    -- DATASOURCE_SCAN  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/push_limit.plan b/asterix-app/src/test/resources/optimizerts/results/push_limit.plan
index 3400b25..c4860d3 100644
--- a/asterix-app/src/test/resources/optimizerts/results/push_limit.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/push_limit.plan
@@ -1,13 +1,15 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- ASSIGN  |UNPARTITIONED|
-      -- STREAM_LIMIT  |UNPARTITIONED|
-        -- SORT_MERGE_EXCHANGE [$$8(ASC) ]  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ASSIGN  |UNPARTITIONED|
+        -- STREAM_LIMIT  |UNPARTITIONED|
           -- STREAM_PROJECT  |PARTITIONED|
-            -- STREAM_SELECT  |PARTITIONED|
-              -- ASSIGN  |PARTITIONED|
-                -- STREAM_LIMIT  |PARTITIONED|
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- DATASOURCE_SCAN  |PARTITIONED|
+            -- SORT_MERGE_EXCHANGE [$$9(ASC) ]  |PARTITIONED|
+              -- STREAM_SELECT  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
+                    -- STREAM_LIMIT  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                        -- DATASOURCE_SCAN  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/q1.plan b/asterix-app/src/test/resources/optimizerts/results/q1.plan
index d723324..2695827 100644
--- a/asterix-app/src/test/resources/optimizerts/results/q1.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/q1.plan
@@ -1,18 +1,20 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- STREAM_SELECT  |PARTITIONED|
-          -- SUBPLAN  |PARTITIONED|
-                  {
-                    -- AGGREGATE  |LOCAL|
-                      -- STREAM_SELECT  |LOCAL|
-                        -- UNNEST  |LOCAL|
-                          -- NESTED_TUPLE_SOURCE  |LOCAL|
-                  }
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
             -- STREAM_PROJECT  |PARTITIONED|
-              -- ASSIGN  |PARTITIONED|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- DATASOURCE_SCAN  |PARTITIONED|
+              -- SUBPLAN  |PARTITIONED|
+                      {
+                        -- AGGREGATE  |LOCAL|
+                          -- STREAM_SELECT  |LOCAL|
+                            -- UNNEST  |LOCAL|
+                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                      }
+                -- STREAM_PROJECT  |PARTITIONED|
+                  -- ASSIGN  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                      -- DATASOURCE_SCAN  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/q1_pricing_summary_report_nt.plan b/asterix-app/src/test/resources/optimizerts/results/q1_pricing_summary_report_nt.plan
new file mode 100644
index 0000000..c4f9bd8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/q1_pricing_summary_report_nt.plan
@@ -0,0 +1,26 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- SORT_MERGE_EXCHANGE [$$1(ASC), $$2(ASC) ]  |PARTITIONED|
+          -- STABLE_SORT [$$1(ASC), $$2(ASC)]  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EXTERNAL_GROUP_BY[$$74, $$75]  |PARTITIONED|
+                      {
+                        -- AGGREGATE  |LOCAL|
+                          -- NESTED_TUPLE_SOURCE  |LOCAL|
+                      }
+                -- HASH_PARTITION_EXCHANGE [$$74, $$75]  |PARTITIONED|
+                  -- EXTERNAL_GROUP_BY[$$48, $$49]  |PARTITIONED|
+                          {
+                            -- AGGREGATE  |LOCAL|
+                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                          }
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- STREAM_SELECT  |PARTITIONED|
+                        -- ASSIGN  |PARTITIONED|
+                          -- STREAM_PROJECT  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/q2.plan b/asterix-app/src/test/resources/optimizerts/results/q2.plan
index f4cc5ec..20b7b27 100644
--- a/asterix-app/src/test/resources/optimizerts/results/q2.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/q2.plan
@@ -1,40 +1,45 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- ASSIGN  |UNPARTITIONED|
-      -- STREAM_LIMIT  |UNPARTITIONED|
-        -- SORT_MERGE_EXCHANGE [$$26(DESC) ]  |PARTITIONED|
-          -- STREAM_LIMIT  |LOCAL|
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$26(DESC)]  |LOCAL|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ASSIGN  |UNPARTITIONED|
+        -- STREAM_LIMIT  |UNPARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- SORT_MERGE_EXCHANGE [$$26(DESC) ]  |PARTITIONED|
+              -- STREAM_LIMIT  |PARTITIONED|
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- PRE_CLUSTERED_GROUP_BY[$$31]  |PARTITIONED|
-                          {
-                            -- AGGREGATE  |LOCAL|
-                              -- NESTED_TUPLE_SOURCE  |LOCAL|
-                          }
-                          {
-                            -- AGGREGATE  |LOCAL|
-                              -- MICRO_PRE_CLUSTERED_GROUP_BY[$$32]  |LOCAL|
-                                      {
-                                        -- AGGREGATE  |LOCAL|
-                                          -- NESTED_TUPLE_SOURCE  |LOCAL|
-                                      }
-                                -- NESTED_TUPLE_SOURCE  |LOCAL|
-                          }
-                    -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$31(ASC), $$32(ASC)] HASH:[$$31]  |PARTITIONED|
-                      -- PRE_CLUSTERED_GROUP_BY[$$23, $$24]  |LOCAL|
+                  -- STABLE_SORT [$$26(DESC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- PRE_CLUSTERED_GROUP_BY[$$32]  |PARTITIONED|
                               {
                                 -- AGGREGATE  |LOCAL|
                                   -- NESTED_TUPLE_SOURCE  |LOCAL|
                               }
-                        -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                          -- STABLE_SORT [$$23(ASC), $$24(ASC)]  |LOCAL|
+                              {
+                                -- AGGREGATE  |LOCAL|
+                                  -- MICRO_PRE_CLUSTERED_GROUP_BY[$$33]  |LOCAL|
+                                          {
+                                            -- AGGREGATE  |LOCAL|
+                                              -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                          }
+                                    -- NESTED_TUPLE_SOURCE  |LOCAL|
+                              }
+                        -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$32(ASC), $$33(ASC)] HASH:[$$32]  |PARTITIONED|
+                          -- PRE_CLUSTERED_GROUP_BY[$$23, $$24]  |PARTITIONED|
+                                  {
+                                    -- AGGREGATE  |LOCAL|
+                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                  }
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- STREAM_PROJECT  |PARTITIONED|
-                                -- ASSIGN  |PARTITIONED|
-                                  -- UNNEST  |PARTITIONED|
+                              -- STABLE_SORT [$$23(ASC), $$24(ASC)]  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
                                     -- ASSIGN  |PARTITIONED|
-                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- DATASOURCE_SCAN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                      -- STREAM_PROJECT  |PARTITIONED|
+                                        -- UNNEST  |PARTITIONED|
+                                          -- STREAM_PROJECT  |PARTITIONED|
+                                            -- ASSIGN  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                  -- DATASOURCE_SCAN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/q3_shipping_priority.plan b/asterix-app/src/test/resources/optimizerts/results/q3_shipping_priority.plan
index 1302637..14f3047 100644
--- a/asterix-app/src/test/resources/optimizerts/results/q3_shipping_priority.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/q3_shipping_priority.plan
@@ -1,53 +1,54 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- ASSIGN  |UNPARTITIONED|
-      -- STREAM_LIMIT  |UNPARTITIONED|
-        -- SORT_MERGE_EXCHANGE [$$44(DESC), $$4(ASC) ]  |PARTITIONED|
-          -- STREAM_LIMIT  |LOCAL|
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$44(DESC), $$4(ASC)]  |LOCAL|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ASSIGN  |UNPARTITIONED|
+        -- STREAM_LIMIT  |UNPARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- SORT_MERGE_EXCHANGE [$$46(DESC), $$4(ASC) ]  |PARTITIONED|
+              -- STREAM_LIMIT  |PARTITIONED|
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- EXTERNAL_GROUP_BY[$$55, $$56, $$57]  |PARTITIONED|
-                          {
-                            -- AGGREGATE  |LOCAL|
-                              -- NESTED_TUPLE_SOURCE  |LOCAL|
-                          }
-                    -- HASH_PARTITION_EXCHANGE [$$55, $$57, $$56]  |PARTITIONED|
-                      -- EXTERNAL_GROUP_BY[$$42, $$46, $$39]  |LOCAL|
+                  -- STABLE_SORT [$$46(DESC), $$4(ASC)]  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EXTERNAL_GROUP_BY[$$56, $$57, $$58]  |PARTITIONED|
                               {
                                 -- AGGREGATE  |LOCAL|
                                   -- NESTED_TUPLE_SOURCE  |LOCAL|
                               }
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- STREAM_PROJECT  |PARTITIONED|
+                        -- HASH_PARTITION_EXCHANGE [$$56, $$57, $$58]  |PARTITIONED|
+                          -- EXTERNAL_GROUP_BY[$$44, $$41, $$39]  |PARTITIONED|
+                                  {
+                                    -- AGGREGATE  |LOCAL|
+                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
+                                  }
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- HYBRID_HASH_JOIN [$$41][$$42]  |PARTITIONED|
-                                -- HASH_PARTITION_EXCHANGE [$$41]  |PARTITIONED|
-                                  -- STREAM_PROJECT  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- HYBRID_HASH_JOIN [$$40][$$48]  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- HYBRID_HASH_JOIN [$$43][$$44]  |PARTITIONED|
+                                    -- HASH_PARTITION_EXCHANGE [$$43]  |PARTITIONED|
+                                      -- STREAM_PROJECT  |PARTITIONED|
                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- STREAM_PROJECT  |PARTITIONED|
-                                            -- STREAM_SELECT  |PARTITIONED|
-                                              -- ASSIGN  |PARTITIONED|
-                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                  -- DATASOURCE_SCAN  |PARTITIONED|
-                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                        -- HASH_PARTITION_EXCHANGE [$$48]  |PARTITIONED|
-                                          -- STREAM_PROJECT  |PARTITIONED|
-                                            -- ASSIGN  |PARTITIONED|
-                                              -- STREAM_SELECT  |PARTITIONED|
-                                                -- ASSIGN  |PARTITIONED|
+                                          -- HYBRID_HASH_JOIN [$$42][$$50]  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- STREAM_PROJECT  |PARTITIONED|
+                                                -- STREAM_SELECT  |PARTITIONED|
                                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                     -- DATASOURCE_SCAN  |PARTITIONED|
                                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                         -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                -- HASH_PARTITION_EXCHANGE [$$42]  |PARTITIONED|
-                                  -- STREAM_PROJECT  |PARTITIONED|
-                                    -- STREAM_SELECT  |PARTITIONED|
-                                      -- ASSIGN  |PARTITIONED|
-                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                          -- DATASOURCE_SCAN  |PARTITIONED|
-                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                            -- HASH_PARTITION_EXCHANGE [$$50]  |PARTITIONED|
+                                              -- STREAM_SELECT  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                    -- HASH_PARTITION_EXCHANGE [$$44]  |PARTITIONED|
+                                      -- STREAM_PROJECT  |PARTITIONED|
+                                        -- STREAM_SELECT  |PARTITIONED|
+                                          -- ASSIGN  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                -- DATASOURCE_SCAN  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/q5_local_supplier_volume.plan b/asterix-app/src/test/resources/optimizerts/results/q5_local_supplier_volume.plan
index d2682d8..2754834 100644
--- a/asterix-app/src/test/resources/optimizerts/results/q5_local_supplier_volume.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/q5_local_supplier_volume.plan
@@ -1,81 +1,84 @@
--- SINK_WRITE  |PARTITIONED|
-  -- STREAM_PROJECT  |PARTITIONED|
-    -- ASSIGN  |PARTITIONED|
-      -- SORT_MERGE_EXCHANGE [$$87(DESC) ]  |PARTITIONED|
-        -- STABLE_SORT [$$87(DESC)]  |LOCAL|
-          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-            -- EXTERNAL_GROUP_BY[$$121]  |PARTITIONED|
-                    {
-                      -- AGGREGATE  |LOCAL|
-                        -- NESTED_TUPLE_SOURCE  |LOCAL|
-                    }
-              -- HASH_PARTITION_EXCHANGE [$$121]  |PARTITIONED|
-                -- EXTERNAL_GROUP_BY[$$93]  |LOCAL|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- SORT_MERGE_EXCHANGE [$$89(DESC) ]  |PARTITIONED|
+            -- STABLE_SORT [$$89(DESC)]  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- EXTERNAL_GROUP_BY[$$120]  |PARTITIONED|
                         {
                           -- AGGREGATE  |LOCAL|
                             -- NESTED_TUPLE_SOURCE  |LOCAL|
                         }
-                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                    -- STREAM_PROJECT  |PARTITIONED|
+                  -- HASH_PARTITION_EXCHANGE [$$120]  |PARTITIONED|
+                    -- EXTERNAL_GROUP_BY[$$94]  |PARTITIONED|
+                            {
+                              -- AGGREGATE  |LOCAL|
+                                -- NESTED_TUPLE_SOURCE  |LOCAL|
+                            }
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- HYBRID_HASH_JOIN [$$80, $$116][$$113, $$95]  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- STREAM_PROJECT  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- DATASOURCE_SCAN  |PARTITIONED|
-                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                          -- HASH_PARTITION_EXCHANGE [$$113]  |PARTITIONED|
-                            -- STREAM_PROJECT  |PARTITIONED|
+                            -- HYBRID_HASH_JOIN [$$81, $$115][$$112, $$88]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- HYBRID_HASH_JOIN [$$81][$$82]  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                              -- HASH_PARTITION_EXCHANGE [$$112]  |PARTITIONED|
+                                -- STREAM_PROJECT  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- STREAM_PROJECT  |PARTITIONED|
-                                      -- STREAM_SELECT  |PARTITIONED|
-                                        -- ASSIGN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- DATASOURCE_SCAN  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                  -- HASH_PARTITION_EXCHANGE [$$82]  |PARTITIONED|
-                                    -- STREAM_PROJECT  |PARTITIONED|
+                                    -- HYBRID_HASH_JOIN [$$82][$$83]  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- HYBRID_HASH_JOIN [$$100][$$84]  |PARTITIONED|
-                                          -- HASH_PARTITION_EXCHANGE [$$100]  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- STREAM_SELECT  |PARTITIONED|
                                             -- STREAM_PROJECT  |PARTITIONED|
                                               -- ASSIGN  |PARTITIONED|
                                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                   -- DATASOURCE_SCAN  |PARTITIONED|
                                                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                       -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                          -- HASH_PARTITION_EXCHANGE [$$84]  |PARTITIONED|
-                                            -- STREAM_PROJECT  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                -- HYBRID_HASH_JOIN [$$95][$$85]  |PARTITIONED|
-                                                  -- HASH_PARTITION_EXCHANGE [$$95]  |PARTITIONED|
-                                                    -- STREAM_PROJECT  |PARTITIONED|
-                                                      -- ASSIGN  |PARTITIONED|
-                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                          -- DATASOURCE_SCAN  |PARTITIONED|
-                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                                  -- HASH_PARTITION_EXCHANGE [$$85]  |PARTITIONED|
+                                      -- HASH_PARTITION_EXCHANGE [$$83]  |PARTITIONED|
+                                        -- STREAM_PROJECT  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- HYBRID_HASH_JOIN [$$99][$$85]  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$99]  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
                                                     -- STREAM_PROJECT  |PARTITIONED|
                                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                        -- HYBRID_HASH_JOIN [$$91][$$86]  |PARTITIONED|
-                                                          -- HASH_PARTITION_EXCHANGE [$$91]  |PARTITIONED|
-                                                            -- STREAM_PROJECT  |PARTITIONED|
-                                                              -- ASSIGN  |PARTITIONED|
-                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                  -- DATASOURCE_SCAN  |PARTITIONED|
-                                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                        -- DATASOURCE_SCAN  |PARTITIONED|
                                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                            -- STREAM_PROJECT  |PARTITIONED|
-                                                              -- STREAM_SELECT  |PARTITIONED|
-                                                                -- ASSIGN  |PARTITIONED|
-                                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                    -- DATASOURCE_SCAN  |PARTITIONED|
-                                                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$85]  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                    -- HYBRID_HASH_JOIN [$$88][$$86]  |PARTITIONED|
+                                                      -- HASH_PARTITION_EXCHANGE [$$88]  |PARTITIONED|
+                                                        -- STREAM_PROJECT  |PARTITIONED|
+                                                          -- ASSIGN  |PARTITIONED|
+                                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                              -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                      -- HASH_PARTITION_EXCHANGE [$$86]  |PARTITIONED|
+                                                        -- STREAM_PROJECT  |PARTITIONED|
+                                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                            -- HYBRID_HASH_JOIN [$$92][$$87]  |PARTITIONED|
+                                                              -- HASH_PARTITION_EXCHANGE [$$92]  |PARTITIONED|
+                                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                                  -- ASSIGN  |PARTITIONED|
+                                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                                  -- STREAM_SELECT  |PARTITIONED|
+                                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/record_access.plan b/asterix-app/src/test/resources/optimizerts/results/record_access.plan
index 70e2daa..44b09f5 100644
--- a/asterix-app/src/test/resources/optimizerts/results/record_access.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/record_access.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
     -- ASSIGN  |UNPARTITIONED|
       -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_01.plan b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_01.plan
new file mode 100644
index 0000000..2f98801
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_01.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- RTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_02.plan b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_02.plan
new file mode 100644
index 0000000..2f98801
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_02.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- RTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_03.plan b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_03.plan
new file mode 100644
index 0000000..2f98801
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/rtree-index-join/spatial-intersect-point_03.plan
@@ -0,0 +1,23 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$20(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- RTREE_SEARCH  |PARTITIONED|
+                              -- BROADCAST_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- ASSIGN  |PARTITIONED|
+                                    -- STREAM_PROJECT  |PARTITIONED|
+                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                        -- DATASOURCE_SCAN  |PARTITIONED|
+                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index-open.plan b/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index-open.plan
new file mode 100644
index 0000000..f7382d8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index-open.plan
@@ -0,0 +1,18 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- RTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index.plan b/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index.plan
index 2b4529d..f7382d8 100644
--- a/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/rtree-secondary-index.plan
@@ -1,17 +1,18 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
-        -- STREAM_SELECT  |PARTITIONED|
-          -- ASSIGN  |PARTITIONED|
-            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-              -- BTREE_SEARCH  |PARTITIONED|
-                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                  -- STABLE_SORT [$$18(ASC)]  |LOCAL|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- STREAM_PROJECT  |PARTITIONED|
-                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- RTREE_SEARCH  |PARTITIONED|
-                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
-                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
+        -- STREAM_PROJECT  |PARTITIONED|
+          -- STREAM_SELECT  |PARTITIONED|
+            -- STREAM_PROJECT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- BTREE_SEARCH  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- RTREE_SEARCH  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- ASSIGN  |PARTITIONED|
+                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/scan-delete-all.plan b/asterix-app/src/test/resources/optimizerts/results/scan-delete-all.plan
index 3c95e2f..e969e5d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/scan-delete-all.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/scan-delete-all.plan
@@ -1,12 +1,12 @@
--- SINK  |PARTITIONED|
-  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-    -- INSERT_DELETE  |PARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-        -- STABLE_SORT [$$19(ASC)]  |LOCAL|
-          -- HASH_PARTITION_EXCHANGE [$$19]  |PARTITIONED|
-            -- ASSIGN  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
+-- COMMIT  |PARTITIONED|
+  -- STREAM_PROJECT  |PARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+      -- INSERT_DELETE  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- STABLE_SORT [$$19(ASC)]  |PARTITIONED|
+            -- HASH_PARTITION_EXCHANGE [$$19]  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
                   -- ASSIGN  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- DATASOURCE_SCAN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/scan-delete-rtree-secondary-index.plan b/asterix-app/src/test/resources/optimizerts/results/scan-delete-rtree-secondary-index.plan
index ede1063..bf8978b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/scan-delete-rtree-secondary-index.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/scan-delete-rtree-secondary-index.plan
@@ -1,23 +1,25 @@
--- SINK  |PARTITIONED|
-  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-    -- INDEX_INSERT_DELETE  |UNPARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-        -- STABLE_SORT [$$25(ASC), $$26(ASC), $$27(ASC), $$28(ASC)]  |LOCAL|
-          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-            -- ASSIGN  |UNPARTITIONED|
-              -- ASSIGN  |UNPARTITIONED|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- INSERT_DELETE  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                      -- STABLE_SORT [$$13(ASC)]  |LOCAL|
-                        -- HASH_PARTITION_EXCHANGE [$$13]  |PARTITIONED|
-                          -- ASSIGN  |PARTITIONED|
-                            -- STREAM_PROJECT  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
+-- COMMIT  |PARTITIONED|
+  -- STREAM_PROJECT  |PARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+      -- INDEX_INSERT_DELETE  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- STABLE_SORT [$$29(ASC), $$30(ASC), $$31(ASC), $$32(ASC)]  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ASSIGN  |PARTITIONED|
+                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                        -- INSERT_DELETE  |PARTITIONED|
+                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                            -- STABLE_SORT [$$14(ASC)]  |PARTITIONED|
+                              -- HASH_PARTITION_EXCHANGE [$$14]  |PARTITIONED|
                                 -- ASSIGN  |PARTITIONED|
-                                  -- ASSIGN  |PARTITIONED|
-                                    -- STREAM_SELECT  |PARTITIONED|
-                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- DATASOURCE_SCAN  |PARTITIONED|
-                                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                  -- STREAM_PROJECT  |PARTITIONED|
+                                    -- ASSIGN  |PARTITIONED|
+                                      -- STREAM_PROJECT  |PARTITIONED|
+                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                          -- BTREE_SEARCH  |PARTITIONED|
+                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/optimizerts/results/scan-delete.plan b/asterix-app/src/test/resources/optimizerts/results/scan-delete.plan
index f1a7172..0608f69 100644
--- a/asterix-app/src/test/resources/optimizerts/results/scan-delete.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/scan-delete.plan
@@ -1,12 +1,12 @@
--- SINK  |PARTITIONED|
-  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-    -- INSERT_DELETE  |PARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-        -- STABLE_SORT [$$21(ASC)]  |LOCAL|
-          -- HASH_PARTITION_EXCHANGE [$$21]  |PARTITIONED|
-            -- ASSIGN  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
+-- COMMIT  |PARTITIONED|
+  -- STREAM_PROJECT  |PARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+      -- INSERT_DELETE  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- STABLE_SORT [$$21(ASC)]  |PARTITIONED|
+            -- HASH_PARTITION_EXCHANGE [$$21]  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
                   -- ASSIGN  |PARTITIONED|
                     -- STREAM_SELECT  |PARTITIONED|
                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/scan-insert-secondary-index.plan b/asterix-app/src/test/resources/optimizerts/results/scan-insert-secondary-index.plan
index c1bed36..e6cf237 100644
--- a/asterix-app/src/test/resources/optimizerts/results/scan-insert-secondary-index.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/scan-insert-secondary-index.plan
@@ -1,27 +1,30 @@
--- SINK  |PARTITIONED|
-  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-    -- INDEX_INSERT_DELETE  |UNPARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-        -- STABLE_SORT [$$12(ASC)]  |LOCAL|
-          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-            -- ASSIGN  |UNPARTITIONED|
-              -- STREAM_PROJECT  |UNPARTITIONED|
-                -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-                  -- INDEX_INSERT_DELETE  |UNPARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                      -- STABLE_SORT [$$11(ASC)]  |LOCAL|
-                        -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
-                          -- ASSIGN  |UNPARTITIONED|
+-- COMMIT  |PARTITIONED|
+  -- STREAM_PROJECT  |PARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+      -- INDEX_INSERT_DELETE  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- STABLE_SORT [$$11(ASC)]  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ASSIGN  |PARTITIONED|
+                  -- STREAM_PROJECT  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- INDEX_INSERT_DELETE  |PARTITIONED|
+                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                          -- STABLE_SORT [$$10(ASC)]  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INSERT_DELETE  |PARTITIONED|
-                                -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-                                  -- STABLE_SORT [$$6(ASC)]  |LOCAL|
-                                    -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
-                                      -- ASSIGN  |PARTITIONED|
-                                        -- STREAM_PROJECT  |PARTITIONED|
+                              -- ASSIGN  |PARTITIONED|
+                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                  -- INSERT_DELETE  |PARTITIONED|
+                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                      -- STABLE_SORT [$$6(ASC)]  |PARTITIONED|
+                                        -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
-                                            -- ASSIGN  |PARTITIONED|
-                                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                -- DATASOURCE_SCAN  |PARTITIONED|
-                                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                            -- STREAM_PROJECT  |PARTITIONED|
+                                              -- ASSIGN  |PARTITIONED|
+                                                -- STREAM_PROJECT  |PARTITIONED|
+                                                  -- ASSIGN  |PARTITIONED|
+                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                      -- DATASOURCE_SCAN  |PARTITIONED|
+                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/scan-insert.plan b/asterix-app/src/test/resources/optimizerts/results/scan-insert.plan
index 2fe55a5..0b756d9 100644
--- a/asterix-app/src/test/resources/optimizerts/results/scan-insert.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/scan-insert.plan
@@ -1,14 +1,16 @@
--- SINK  |PARTITIONED|
-  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-    -- INSERT_DELETE  |PARTITIONED|
-      -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-        -- STABLE_SORT [$$6(ASC)]  |LOCAL|
-          -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
-            -- ASSIGN  |PARTITIONED|
-              -- STREAM_PROJECT  |PARTITIONED|
-                -- ASSIGN  |PARTITIONED|
+-- COMMIT  |PARTITIONED|
+  -- STREAM_PROJECT  |PARTITIONED|
+    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+      -- INSERT_DELETE  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- STABLE_SORT [$$6(ASC)]  |PARTITIONED|
+            -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
+              -- ASSIGN  |PARTITIONED|
+                -- STREAM_PROJECT  |PARTITIONED|
                   -- ASSIGN  |PARTITIONED|
-                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                          -- DATASOURCE_SCAN  |PARTITIONED|
+                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_01.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_01.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_02.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_03.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_03.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_04.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_04.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_05.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_05.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_05.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_06.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_06.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_06.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_07.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_07.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_07.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_08.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_08.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-let-to-edit-distance-check_08.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_01.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_01.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_02.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_02.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_03.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_03.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_04.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_04.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_05.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_05.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_05.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_06.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_06.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_06.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_07.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_07.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_07.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_08.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_08.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/edit-distance-to-edit-distance-check_08.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-edit-distance-check.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-edit-distance-check.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-edit-distance-check.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-jaccard-check.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/fuzzyeq-to-jaccard-check.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_01.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_01.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_02.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_02.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_03.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_03.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_04.plan
new file mode 100644
index 0000000..c0e93c8
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_04.plan
@@ -0,0 +1,12 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_PROJECT  |PARTITIONED|
+      -- ASSIGN  |PARTITIONED|
+        -- STREAM_SELECT  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ASSIGN  |PARTITIONED|
+              -- STREAM_PROJECT  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- DATASOURCE_SCAN  |PARTITIONED|
+                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                      -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_05.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_05.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_05.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_06.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_06.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_06.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_07.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_07.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_07.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_08.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_08.plan
new file mode 100644
index 0000000..4d9d3f9
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-let-to-jaccard-check_08.plan
@@ -0,0 +1,10 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ASSIGN  |PARTITIONED|
+          -- STREAM_PROJECT  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- DATASOURCE_SCAN  |PARTITIONED|
+                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_01.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_01.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_02.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_02.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_03.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_03.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_04.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_04.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_05.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_05.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_05.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_06.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_06.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_06.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_07.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_07.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_07.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_08.plan b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_08.plan
new file mode 100644
index 0000000..ae0d5bb
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/similarity/jaccard-to-jaccard-check_08.plan
@@ -0,0 +1,8 @@
+-- DISTRIBUTE_RESULT  |PARTITIONED|
+  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
+    -- STREAM_SELECT  |PARTITIONED|
+      -- STREAM_PROJECT  |PARTITIONED|
+        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+          -- DATASOURCE_SCAN  |PARTITIONED|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/sort-cust.plan b/asterix-app/src/test/resources/optimizerts/results/sort-cust.plan
index f790019..5452f6f 100644
--- a/asterix-app/src/test/resources/optimizerts/results/sort-cust.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/sort-cust.plan
@@ -1,15 +1,17 @@
--- SINK_WRITE  |UNPARTITIONED|
-  -- STREAM_PROJECT  |UNPARTITIONED|
-    -- ASSIGN  |UNPARTITIONED|
-      -- STREAM_LIMIT  |UNPARTITIONED|
-        -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
-          -- STREAM_LIMIT  |LOCAL|
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$7(ASC)]  |LOCAL|
-                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                  -- STREAM_PROJECT  |PARTITIONED|
-                    -- ASSIGN  |PARTITIONED|
-                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- DATASOURCE_SCAN  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ASSIGN  |UNPARTITIONED|
+        -- STREAM_LIMIT  |UNPARTITIONED|
+          -- SORT_MERGE_EXCHANGE [$$7(ASC) ]  |PARTITIONED|
+            -- STREAM_LIMIT  |PARTITIONED|
+              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                -- STABLE_SORT [$$7(ASC)]  |PARTITIONED|
+                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                    -- STREAM_PROJECT  |PARTITIONED|
+                      -- ASSIGN  |PARTITIONED|
+                        -- STREAM_PROJECT  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                            -- DATASOURCE_SCAN  |PARTITIONED|
+                              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+                                -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_01.plan b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_01.plan
new file mode 100644
index 0000000..beacfb0
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_01.plan
@@ -0,0 +1,11 @@
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- STREAM_PROJECT  |UNPARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+        -- HYBRID_HASH_JOIN [$$0][$$1]  |UNPARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+            -- UNNEST  |UNPARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+            -- UNNEST  |UNPARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan
new file mode 100644
index 0000000..8c65c4b
--- /dev/null
+++ b/asterix-app/src/test/resources/optimizerts/results/unnest-to-join_02.plan
@@ -0,0 +1,11 @@
+-- DISTRIBUTE_RESULT  |UNPARTITIONED|
+  -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+    -- AGGREGATE  |UNPARTITIONED|
+      -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+        -- HYBRID_HASH_JOIN [$$0][$$1]  |UNPARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+            -- UNNEST  |UNPARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
+          -- ONE_TO_ONE_EXCHANGE  |UNPARTITIONED|
+            -- UNNEST  |UNPARTITIONED|
+              -- EMPTY_TUPLE_SOURCE  |UNPARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/unnest_list_in_subplan.plan b/asterix-app/src/test/resources/optimizerts/results/unnest_list_in_subplan.plan
index 0a2d8a3..30a53b3 100644
--- a/asterix-app/src/test/resources/optimizerts/results/unnest_list_in_subplan.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/unnest_list_in_subplan.plan
@@ -1,4 +1,4 @@
--- SINK_WRITE  |PARTITIONED|
+-- DISTRIBUTE_RESULT  |PARTITIONED|
   -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
     -- STREAM_PROJECT  |PARTITIONED|
       -- ASSIGN  |PARTITIONED|
@@ -9,16 +9,16 @@
                       -- STREAM_SELECT  |LOCAL|
                         -- NESTED_TUPLE_SOURCE  |LOCAL|
                   }
-            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
-              -- STABLE_SORT [$$20(ASC), $$18(ASC)]  |LOCAL|
+            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
+              -- STABLE_SORT [$$20(ASC), $$18(ASC)]  |PARTITIONED|
                 -- HASH_PARTITION_EXCHANGE [$$20]  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- HYBRID_HASH_JOIN [$$4][$$22]  |PARTITIONED|
-                        -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
+                      -- HYBRID_HASH_JOIN [$$3][$$22]  |PARTITIONED|
+                        -- HASH_PARTITION_EXCHANGE [$$3]  |PARTITIONED|
                           -- STREAM_PROJECT  |PARTITIONED|
                             -- UNNEST  |PARTITIONED|
-                              -- ASSIGN  |PARTITIONED|
+                              -- STREAM_PROJECT  |PARTITIONED|
                                 -- ASSIGN  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- DATASOURCE_SCAN  |PARTITIONED|
@@ -30,4 +30,4 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- DATASOURCE_SCAN  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
+                                    -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/ignore.txt b/asterix-app/src/test/resources/runtimets/ignore.txt
index c528485..6722cdb 100644
--- a/asterix-app/src/test/resources/runtimets/ignore.txt
+++ b/asterix-app/src/test/resources/runtimets/ignore.txt
@@ -1,17 +1,44 @@
 custord/join_q_04.aql
 scan/spatial_types_02.aql
 scan/temp_types_02.aql
-fuzzyjoin/dblp-csx-3_5.4.aql
 fuzzyjoin/dblp-splits-3_1.aql
+fuzzyjoin/events-users-aqlplus_1.aql
 subset-collection/04.aql
-quantifiers/everysat_01.aql
 custord/freq-clerk.aql
 custord/denorm-cust-order_01.aql
 custord/denorm-cust-order_03.aql
 custord/co.aql
 comparison/numeric-comparison_01.aql
 dapd/q3.aql
-fuzzyjoin/events-users-aqlplus_1.aql
-tpch
-fuzzyjoin
 failure/q1_pricing_summary_report_failure.aql
+dml/load-from-hdfs.aql
+open-closed/open-closed-15
+open-closed/open-closed-16
+open-closed/open-closed-17
+open-closed/open-closed-18
+open-closed/open-closed-19
+open-closed/open-closed-20
+open-closed/open-closed-21
+open-closed/open-closed-22
+open-closed/open-closed-28
+open-closed/open-closed-30
+open-closed/heterog-list02
+open-closed/heterog-list03
+open-closed/c2c
+quantifiers/somesat_03.aql
+quantifiers/somesat_04.aql
+quantifiers/somesat_05.aql
+quantifiers/everysat_02.aql
+quantifiers/everysat_03.aql
+flwor
+string/startwith03.aql
+aggregate/droptype.aql
+failure/delete-rtree.aql
+failure/delete.aql
+failure/insert-rtree.aql
+failure/insert.aql
+failure/q1_pricing_summary_report_failure.aql
+failure/verify_delete-rtree.aql
+failure/verify_delete.aql
+failure/verify_insert-rtree.aql
+failure/verify_insert.aql
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double.aql
deleted file mode 100644
index 2c2494b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_double.adm";
-
-avg( 
- for $x in [1.0, 2.0, double("3.0")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.1.ddl.aql
new file mode 100644
index 0000000..55ab0f7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.1.ddl.aql
@@ -0,0 +1,6 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.3.query.aql
new file mode 100644
index 0000000..a435573
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double/avg_double.3.query.aql
@@ -0,0 +1,5 @@
+avg(
+ for $x in [1.0, 2.0, double("3.0")]
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null.aql
deleted file mode 100644
index c2e9141..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_double_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.doubleField
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.3.query.aql
new file mode 100644
index 0000000..9eb80c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_double_null/avg_double_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.doubleField
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.1.ddl.aql
new file mode 100644
index 0000000..0ed1519
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.2.update.aql
new file mode 100644
index 0000000..d1537b0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.3.query.aql
new file mode 100644
index 0000000..ddeb318
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_01/avg_empty_01.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+avg(
+ for $x in [1, 2, 3]
+ where $x > 10
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.1.ddl.aql
new file mode 100644
index 0000000..62c5ca6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as closed {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.2.update.aql
new file mode 100644
index 0000000..5a8604b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.3.query.aql
new file mode 100644
index 0000000..d73d568
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_empty_02/avg_empty_02.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+avg(
+ for $x in dataset('Test')
+ return $x.val
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float.aql
deleted file mode 100644
index a7906ff..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_float.adm";
-
-avg( 
- for $x in [float("1"), float("2"), float("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.3.query.aql
new file mode 100644
index 0000000..c7ec789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float/avg_float.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+avg( 
+ for $x in [float("1"), float("2"), float("3")] 
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null.aql
deleted file mode 100644
index 3b60039..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_float_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.floatField
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.3.query.aql
new file mode 100644
index 0000000..536c339
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_float_null/avg_float_nu.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.floatField
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16.aql
deleted file mode 100644
index d218675..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_int16.adm";
-
-avg( 
- for $x in [int16("1"), int16("2"), int16("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.3.query.aql
new file mode 100644
index 0000000..cc7edcd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16/avg_int16.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+avg( 
+ for $x in [int16("1"), int16("2"), int16("3")] 
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null.aql
deleted file mode 100644
index 642f4e3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_int16_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.int16Field
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.3.query.aql
new file mode 100644
index 0000000..9b73751
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int16_null/avg_int16_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.int16Field
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32.aql
deleted file mode 100644
index 44aff70..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_int32.adm";
-
-avg( 
- for $x in [1, 2, 3] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.3.query.aql
new file mode 100644
index 0000000..49a3cc2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32/avg_int32.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+avg( 
+ for $x in [1, 2, 3] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null.aql
deleted file mode 100644
index 5fcb925..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_int32_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.int32Field
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.3.query.aql
new file mode 100644
index 0000000..31fcb7a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int32_null/avg_int32_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.int32Field
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64.aql
deleted file mode 100644
index 4e6f6af..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_int64.adm";
-
-avg( 
- for $x in [int64("1"), int64("2"), int64("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.3.query.aql
new file mode 100644
index 0000000..8d2860a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64/avg_int64.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+avg( 
+ for $x in [int64("1"), int64("2"), int64("3")] 
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null.aql
deleted file mode 100644
index 4f18910..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_int64_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.int64Field
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.3.query.aql
new file mode 100644
index 0000000..6b18e0f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int64_null/avg_int64_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.int64Field
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8.aql
deleted file mode 100644
index e8f327d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_avg_int8.adm";
-
-avg( 
- for $x in [int8("1"),int8("2"), int8("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.3.query.aql
new file mode 100644
index 0000000..ac648af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8/avg_int8.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+avg( 
+ for $x in [int8("1"),int8("2"), int8("3")] 
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null.aql
deleted file mode 100644
index c58e85a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_avg_int8_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $a := avg( 
- for $x in dataset('Numeric') 
- return $x.int8Field
-)
-return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.1.ddl.aql
new file mode 100644
index 0000000..5cf8ddf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.3.query.aql
new file mode 100644
index 0000000..2917fec
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/avg_int8_null/avg_int8_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $a := avg( 
+ for $x in dataset('Numeric') 
+ return $x.int8Field
+)
+return {"average": $a}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01.aql
deleted file mode 100644
index 8d14789..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_count_01.adm";
-
-count( 
- for $x in [1, 2, 3] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.1.ddl.aql
new file mode 100644
index 0000000..55ab0f7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.1.ddl.aql
@@ -0,0 +1,6 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.3.query.aql
new file mode 100644
index 0000000..8e04aa3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_01/count_01.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+count( 
+ for $x in [1, 2, 3] 
+ return $x
+)
+
+
+
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.1.ddl.aql
new file mode 100644
index 0000000..ac3607c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.1.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.2.update.aql
new file mode 100644
index 0000000..c098290
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.3.query.aql
new file mode 100644
index 0000000..f19e999
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_01/count_empty_01.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+count(
+ for $x in [1, 2, 3]
+ where $x > 10
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.1.ddl.aql
new file mode 100644
index 0000000..0e7425f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as closed {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.2.update.aql
new file mode 100644
index 0000000..32fc59b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.3.query.aql
new file mode 100644
index 0000000..ba5f817
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_empty_02/count_empty_02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Tests that count aggregation correctly returns 0 for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+use dataverse test;
+
+count(
+ for $x in dataset('Test')
+ return $x.val
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null.aql
deleted file mode 100644
index 5a94d54..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_count_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-let $c := count( 
- for $x in dataset('Numeric') 
- return $x.doubleField
-)
-return {"count": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.3.query.aql
new file mode 100644
index 0000000..9cbfe6c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/count_null/count_null.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c := count( 
+ for $x in dataset('Numeric') 
+ return $x.doubleField
+)
+return {"count": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.1.ddl.aql
new file mode 100644
index 0000000..0423853
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Test to cover =>  create type - drop type - recreate that dropped type 
+ * Expected Res : Success
+ * Date         : 13 Sep 2012
+ * Issue        : 188
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type footype as open {
+bar : int32?
+}
+
+drop type footype;
+
+create type footype as open {
+bar : int32?
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.2.update.aql
new file mode 100644
index 0000000..a6e5e2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Test to cover =>  create type - drop type - recreate that dropped type 
+ * Expected Res : Success
+ * Date         : 13 Sep 2012
+ * Issue        : 188
+ */
+
+// This file has no insert/delete statements
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.3.query.aql
new file mode 100644
index 0000000..cb83e18
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/droptype/droptype.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Test to cover =>  create type - drop type - recreate that dropped type 
+ * Expected Res : Success
+ * Date         : 13 Sep 2012
+ * Issue        : 188
+ */
+
+// There is no Query in this test as we only create/drop from DDL file.
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01.aql
deleted file mode 100644
index 24ca240..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_global-avg_01.adm";
-
-global-avg(
-  for $x in [1.0, 2.0, double("3.0")] 
-  return { "sum": $x, "count": 1 }  
-)
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.1.ddl.aql
new file mode 100644
index 0000000..d067eb1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.1.ddl.aql
@@ -0,0 +1,5 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.3.query.aql
new file mode 100644
index 0000000..2652d36
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_01/global-avg_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+global-avg(
+  for $x in [1.0, 2.0, double("3.0")] 
+  return { "sum": $x, "count": 1 }  
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null.aql
deleted file mode 100644
index a8151d8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null.aql
+++ /dev/null
@@ -1,29 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_global-avg_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-
-let $c := global-avg(
- for $x in dataset('Numeric') 
- return { "sum": $x.doubleField, "count": $x.int32Field }   
-)
-return {"global-average": $c}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.3.query.aql
new file mode 100644
index 0000000..15493b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/global-avg_null/global-avg_null.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+let $c := global-avg(
+ for $x in dataset('Numeric') 
+ return { "sum": $x.doubleField, "count": $x.int32Field }   
+)
+return {"global-average": $c}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double.aql
deleted file mode 100644
index 75d4af8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_double.adm";
-
-local-avg( 
- for $x in [1.0, 2.0, double("3.0")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.3.query.aql
new file mode 100644
index 0000000..81ebdc5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double/local-avg_double.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [1.0, 2.0, double("3.0")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null.aql
deleted file mode 100644
index 6990fc4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_double_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.doubleField
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.2.update.aql
new file mode 100644
index 0000000..155c264
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.2.update.aql
@@ -0,0 +1 @@
+// No inserts/deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.3.query.aql
new file mode 100644
index 0000000..28721d1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_double_null/local-avg_double_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.doubleField
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float.aql
deleted file mode 100644
index f79fa3d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_float.adm";
-
-local-avg( 
- for $x in [float("1"), float("2"), float("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.2.update.aql
new file mode 100644
index 0000000..c52462e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.2.update.aql
@@ -0,0 +1 @@
+// no inserts/deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.3.query.aql
new file mode 100644
index 0000000..ae73bf4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float/local-avg_float.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [float("1"), float("2"), float("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null.aql
deleted file mode 100644
index 6f5a39d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_float_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.floatField
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.2.update.aql
new file mode 100644
index 0000000..b77b33e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.2.update.aql
@@ -0,0 +1 @@
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.3.query.aql
new file mode 100644
index 0000000..8fe8c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_float_null/local-avg_float_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.floatField
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16.aql
deleted file mode 100644
index c0e61e6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_int16.adm";
-
-local-avg( 
- for $x in [int16("1"), int16("2"), int16("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.1.ddl.aql
new file mode 100644
index 0000000..56e96a6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.1.ddl.aql
@@ -0,0 +1,11 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+local-avg( 
+ for $x in [int16("1"), int16("2"), int16("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.2.update.aql
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.2.update.aql
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.3.query.aql
new file mode 100644
index 0000000..2d776a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16/local-avg_int16.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [int16("1"), int16("2"), int16("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null.aql
deleted file mode 100644
index 65287f1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_int16_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.int16Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.2.update.aql
new file mode 100644
index 0000000..9d2ef1c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.2.update.aql
@@ -0,0 +1 @@
+// no insert deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.3.query.aql
new file mode 100644
index 0000000..9e923df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int16_null/local-avg_int16_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.int16Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32.aql
deleted file mode 100644
index 977dbcf..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_int32.adm";
-
-local-avg( 
- for $x in [1, 2, 3] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.2.update.aql
new file mode 100644
index 0000000..f0c597a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.2.update.aql
@@ -0,0 +1 @@
+// no inserts deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.3.query.aql
new file mode 100644
index 0000000..56ec2c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32/local-avg_int32.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [1, 2, 3] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null.aql
deleted file mode 100644
index eea2d41..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_int32_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.int32Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.1.ddl.aql
new file mode 100644
index 0000000..53a7daa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.3.query.aql
new file mode 100644
index 0000000..f6a89c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int32_null/local-avg_int32_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.int32Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64.aql
deleted file mode 100644
index 3bfbe26..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_int64.adm";
-
-local-avg( 
- for $x in [int64("1"), int64("2"), int64("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.2.update.aql
new file mode 100644
index 0000000..2be8eb8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.2.update.aql
@@ -0,0 +1 @@
+// no inserts delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.3.query.aql
new file mode 100644
index 0000000..6501365a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64/local-avg_int64.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [int64("1"), int64("2"), int64("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null.aql
deleted file mode 100644
index d25ae69..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_int64_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.int64Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.2.update.aql
new file mode 100644
index 0000000..b77b33e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.2.update.aql
@@ -0,0 +1 @@
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.3.query.aql
new file mode 100644
index 0000000..d0248c3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int64_null/local-avg_int64_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.int64Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8.aql
deleted file mode 100644
index cd3e3fe..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_local-avg_int8.adm";
-
-local-avg( 
- for $x in [int8("1"),int8("2"), int8("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.2.update.aql
new file mode 100644
index 0000000..b77b33e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.2.update.aql
@@ -0,0 +1 @@
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.3.query.aql
new file mode 100644
index 0000000..884c61b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8/local-avg_int8.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+local-avg( 
+ for $x in [int8("1"),int8("2"), int8("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null.aql
deleted file mode 100644
index b8e4bcb..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_local-avg_int8_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-local-avg( 
- for $x in dataset('Numeric') 
- return $x.int8Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.2.update.aql
new file mode 100644
index 0000000..b77b33e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.2.update.aql
@@ -0,0 +1 @@
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.3.query.aql
new file mode 100644
index 0000000..82d7ab3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/local-avg_int8_null/local-avg_int8_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+local-avg( 
+ for $x in dataset('Numeric') 
+ return $x.int8Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.1.ddl.aql
new file mode 100644
index 0000000..5cd8f78
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.2.update.aql
new file mode 100644
index 0000000..43a3212
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts/deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.3.query.aql
new file mode 100644
index 0000000..5068259
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_01/max_empty_01.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+max(
+ for $x in [1, 2, 3]
+ where $x > 10
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.1.ddl.aql
new file mode 100644
index 0000000..94fd061
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as closed {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.2.update.aql
new file mode 100644
index 0000000..08727d0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.3.query.aql
new file mode 100644
index 0000000..401f67f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/max_empty_02/max_empty_02.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Tests that max aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+max(
+ for $x in dataset('Test')
+ return $x.val
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.1.ddl.aql
new file mode 100644
index 0000000..2a0b464
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.2.update.aql
new file mode 100644
index 0000000..fb056b7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts/deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.3.query.aql
new file mode 100644
index 0000000..7f187cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_01/min_empty_01.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+min(
+ for $x in [1, 2, 3]
+ where $x > 10
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.1.ddl.aql
new file mode 100644
index 0000000..6f88fe5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as closed {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.2.update.aql
new file mode 100644
index 0000000..e31545a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts and deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.3.query.aql
new file mode 100644
index 0000000..3133060
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/min_empty_02/min_empty_02.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Tests that min aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+min(
+ for $x in dataset('Test')
+ return $x.val
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.1.ddl.aql
new file mode 100644
index 0000000..1ca0c77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of avg without nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.2.update.aql
new file mode 100644
index 0000000..56f1a25
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of avg without nulls.
+ * Success        : Yes
+ */
+
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.3.query.aql
new file mode 100644
index 0000000..bc2005d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg/scalar_avg.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests the scalar version of avg without nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := avg([int8("1"), int8("2"), int8("3")])
+let $i16 := avg([int16("1"), int16("2"), int16("3")])
+let $i32 := avg([int32("1"), int32("2"), int32("3")])
+let $i64 := avg([int64("1"), int64("2"), int64("3")])
+let $f := avg([float("1"), float("2"), float("3")])
+let $d := avg([double("1"), double("2"), double("3")])
+for $i in [$i8, $i16, $i32, $i64, $f, $d]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.1.ddl.aql
new file mode 100644
index 0000000..1c8169f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of avg with an empty list.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.2.update.aql
new file mode 100644
index 0000000..5597020
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of avg with an empty list.
+ * Success        : Yes
+ */
+
+// no insert delete here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.3.query.aql
new file mode 100644
index 0000000..03d2902
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_empty/scalar_avg_empty.3.query.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of avg with an empty list.
+ * Success        : Yes
+ */
+
+avg([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.1.ddl.aql
new file mode 100644
index 0000000..5e74858
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of avg with nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.2.update.aql
new file mode 100644
index 0000000..0a4161c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of avg with nulls.
+ * Success        : Yes
+ */
+
+// no inserts deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.3.query.aql
new file mode 100644
index 0000000..2b8b993
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_avg_null/scalar_avg_null.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests the scalar version of avg with nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := avg([int8("1"), int8("2"), int8("3"), null])
+let $i16 := avg([int16("1"), int16("2"), int16("3"), null])
+let $i32 := avg([int32("1"), int32("2"), int32("3"), null])
+let $i64 := avg([int64("1"), int64("2"), int64("3"), null])
+let $f := avg([float("1"), float("2"), float("3"), null])
+let $d := avg([double("1"), double("2"), double("3"), null])
+for $i in [$i8, $i16, $i32, $i64, $f, $d]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.1.ddl.aql
new file mode 100644
index 0000000..738c93f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of count without nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.2.update.aql
new file mode 100644
index 0000000..fb02201
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of count without nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.3.query.aql
new file mode 100644
index 0000000..8a287eb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count/scalar_count.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Tests the scalar version of count without nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := count([int8("1"), int8("2"), int8("3")])
+let $i16 := count([int16("1"), int16("2"), int16("3")])
+let $i32 := count([int32("1"), int32("2"), int32("3")])
+let $i64 := count([int64("1"), int64("2"), int64("3")])
+let $f := count([float("1"), float("2"), float("3")])
+let $d := count([double("1"), double("2"), double("3")])
+let $s := count(["a", "b", "c"])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.1.ddl.aql
new file mode 100644
index 0000000..fbaee27
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of count with an empty list.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.2.update.aql
new file mode 100644
index 0000000..d1f8aef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of count with an empty list.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.3.query.aql
new file mode 100644
index 0000000..406798f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_empty/scalar_count_empty.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of count with an empty list.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+count([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.1.ddl.aql
new file mode 100644
index 0000000..8341d8f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of count with nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.2.update.aql
new file mode 100644
index 0000000..221f98a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of count with nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.3.query.aql
new file mode 100644
index 0000000..d432cdf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_count_null/scalar_count_null.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Tests the scalar version of count with nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := count([int8("1"), int8("2"), int8("3"), null])
+let $i16 := count([int16("1"), int16("2"), int16("3"), null])
+let $i32 := count([int32("1"), int32("2"), int32("3"), null])
+let $i64 := count([int64("1"), int64("2"), int64("3"), null])
+let $f := count([float("1"), float("2"), float("3"), null])
+let $d := count([double("1"), double("2"), double("3"), null])
+let $s := count(["a", "b", "c", null])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.1.ddl.aql
new file mode 100644
index 0000000..058ca2b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of max without nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.2.update.aql
new file mode 100644
index 0000000..ac0c2df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of max without nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.3.query.aql
new file mode 100644
index 0000000..e3f064c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max/scalar_max.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests the scalar version of max without nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := max([int8("1"), int8("2"), int8("3")])
+let $i16 := max([int16("1"), int16("2"), int16("3")])
+let $i32 := max([int32("1"), int32("2"), int32("3")])
+let $i64 := max([int64("1"), int64("2"), int64("3")])
+let $f := max([float("1"), float("2"), float("3")])
+let $d := max([double("1"), double("2"), double("3")])
+let $s := max(["foo", "bar", "world"])
+let $dt := max([datetime("2012-03-01T00:00:00Z"), datetime("2012-01-01T00:00:00Z"), datetime("2012-02-01T00:00:00Z")])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s, $dt]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.1.ddl.aql
new file mode 100644
index 0000000..2f4d00c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of max with an empty list.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.2.update.aql
new file mode 100644
index 0000000..dd6fb87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of max with an empty list.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.3.query.aql
new file mode 100644
index 0000000..0aa63ab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_empty/scalar_max_empty.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of max with an empty list.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+max([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.1.ddl.aql
new file mode 100644
index 0000000..4713540
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of max with nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.2.update.aql
new file mode 100644
index 0000000..ade6f7b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of max with nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.3.query.aql
new file mode 100644
index 0000000..b5708c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_max_null/scalar_max_null.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests the scalar version of max with nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := max([int8("1"), int8("2"), int8("3"), null])
+let $i16 := max([int16("1"), int16("2"), int16("3"), null])
+let $i32 := max([int32("1"), int32("2"), int32("3"), null])
+let $i64 := max([int64("1"), int64("2"), int64("3"), null])
+let $f := max([float("1"), float("2"), float("3"), null])
+let $d := max([double("1"), double("2"), double("3"), null])
+let $s := max(["foo", "bar", "world", null])
+let $dt := min([datetime("2012-03-01T00:00:00Z"), datetime("2012-01-01T00:00:00Z"), datetime("2012-02-01T00:00:00Z"), null])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s, $dt]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.1.ddl.aql
new file mode 100644
index 0000000..b0ba723
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of min without nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.2.update.aql
new file mode 100644
index 0000000..89c8265
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of min without nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.3.query.aql
new file mode 100644
index 0000000..9d7a661
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min/scalar_min.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests the scalar version of min without nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := min([int8("1"), int8("2"), int8("3")])
+let $i16 := min([int16("1"), int16("2"), int16("3")])
+let $i32 := min([int32("1"), int32("2"), int32("3")])
+let $i64 := min([int64("1"), int64("2"), int64("3")])
+let $f := min([float("1"), float("2"), float("3")])
+let $d := min([double("1"), double("2"), double("3")])
+let $s := min(["foo", "bar", "world"])
+let $dt := min([datetime("2012-03-01T00:00:00Z"), datetime("2012-01-01T00:00:00Z"), datetime("2012-02-01T00:00:00Z")])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s, $dt]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.1.ddl.aql
new file mode 100644
index 0000000..d4de7aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.1.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Tests the scalar version of min with an empty list.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+min([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.2.update.aql
new file mode 100644
index 0000000..5c4fe2e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of min with an empty list.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.3.query.aql
new file mode 100644
index 0000000..f765e4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_empty/scalar_min_empty.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of min with an empty list.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+min([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.1.ddl.aql
new file mode 100644
index 0000000..807484d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of min with nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.2.update.aql
new file mode 100644
index 0000000..db34098
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of min with nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.3.query.aql
new file mode 100644
index 0000000..426f2ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_min_null/scalar_min_null.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests the scalar version of min with nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := min([int8("1"), int8("2"), int8("3"), null])
+let $i16 := min([int16("1"), int16("2"), int16("3"), null])
+let $i32 := min([int32("1"), int32("2"), int32("3"), null])
+let $i64 := min([int64("1"), int64("2"), int64("3"), null])
+let $f := min([float("1"), float("2"), float("3"), null])
+let $d := min([double("1"), double("2"), double("3"), null])
+let $s := min(["foo", "bar", "world", null])
+let $dt := min([datetime("2012-03-01T00:00:00Z"), datetime("2012-01-01T00:00:00Z"), datetime("2012-02-01T00:00:00Z"), null])
+for $i in [$i8, $i16, $i32, $i64, $f, $d, $s, $dt]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.1.ddl.aql
new file mode 100644
index 0000000..ec1cb2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of sum without nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.2.update.aql
new file mode 100644
index 0000000..ffadd17
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of sum without nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.3.query.aql
new file mode 100644
index 0000000..531def5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum/scalar_sum.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests the scalar version of sum without nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := sum([int8("1"), int8("2"), int8("3")])
+let $i16 := sum([int16("1"), int16("2"), int16("3")])
+let $i32 := sum([int32("1"), int32("2"), int32("3")])
+let $i64 := sum([int64("1"), int64("2"), int64("3")])
+let $f := sum([float("1"), float("2"), float("3")])
+let $d := sum([double("1"), double("2"), double("3")])
+for $i in [$i8, $i16, $i32, $i64, $f, $d]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.1.ddl.aql
new file mode 100644
index 0000000..3d954c1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.1.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Tests the scalar version of sum with an empty list.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+sum([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.2.update.aql
new file mode 100644
index 0000000..b0963c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of sum with an empty list.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.3.query.aql
new file mode 100644
index 0000000..62517ad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_empty/scalar_sum_empty.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests the scalar version of sum with an empty list.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+sum([ ])
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.1.ddl.aql
new file mode 100644
index 0000000..8aad56b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests the scalar version of sum with nulls.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.2.update.aql
new file mode 100644
index 0000000..3032051
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Tests the scalar version of sum with nulls.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.3.query.aql
new file mode 100644
index 0000000..3cd2c19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/scalar_sum_null/scalar_sum_null.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests the scalar version of sum with nulls.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $i8 := sum([int8("1"), int8("2"), int8("3"), null])
+let $i16 := sum([int16("1"), int16("2"), int16("3"), null])
+let $i32 := sum([int32("1"), int32("2"), int32("3"), null])
+let $i64 := sum([int64("1"), int64("2"), int64("3"), null])
+let $f := sum([float("1"), float("2"), float("3"), null])
+let $d := sum([double("1"), double("2"), double("3"), null])
+for $i in [$i8, $i16, $i32, $i64, $f, $d]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double.aql
deleted file mode 100644
index 4a0bfe8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_double.adm";
-
-sum( 
- for $x in [1.0, 2.0, 3.0] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.3.query.aql
new file mode 100644
index 0000000..118d891
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double/sum_double.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+sum( 
+ for $x in [1.0, 2.0, 3.0] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null.aql
deleted file mode 100644
index d919120..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_double_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.doubleField
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.3.query.aql
new file mode 100644
index 0000000..843ae1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_double_null/sum_double_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.doubleField
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.1.ddl.aql
new file mode 100644
index 0000000..ff8dafa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.2.update.aql
new file mode 100644
index 0000000..36a33e0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.3.query.aql
new file mode 100644
index 0000000..2b2526c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_01/sum_empty_01.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+sum(
+ for $x in [1, 2, 3]
+ where $x > 10
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.1.ddl.aql
new file mode 100644
index 0000000..6679a19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as closed {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.2.update.aql
new file mode 100644
index 0000000..479b626
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.3.query.aql
new file mode 100644
index 0000000..eb9df25
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_empty_02/sum_empty_02.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Tests that sum aggregation correctly returns null for an empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+sum(
+ for $x in dataset('Test')
+ return $x.val
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float.aql
deleted file mode 100644
index 0798dd8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_float.adm";
-
-sum( 
- for $x in [float("1"), float("2"), float("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.3.query.aql
new file mode 100644
index 0000000..afbf7c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float/sum_float.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+sum( 
+ for $x in [float("1"), float("2"), float("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null.aql
deleted file mode 100644
index 767c5a4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_float_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.floatField
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.3.query.aql
new file mode 100644
index 0000000..4015f0b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_float_null/sum_float_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.floatField
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16.aql
deleted file mode 100644
index 77ea235..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_int16.adm";
-
-sum( 
- for $x in [int16("1"), int16("2"), int16("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.3.query.aql
new file mode 100644
index 0000000..ec84d47
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16/sum_int16.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+sum( 
+ for $x in [int16("1"), int16("2"), int16("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null.aql
deleted file mode 100644
index 7535a95..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_int16_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.int16Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.3.query.aql
new file mode 100644
index 0000000..7aa5a34
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int16_null/sum_int16_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.int16Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32.aql
deleted file mode 100644
index c8d68aa..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_int32.adm";
-
-sum( 
- for $x in [1, 2, int32("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.3.query.aql
new file mode 100644
index 0000000..b137895
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32/sum_int32.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+sum( 
+ for $x in [1, 2, int32("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null.aql
deleted file mode 100644
index 2fe268920..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_int32_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.int32Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.3.query.aql
new file mode 100644
index 0000000..26c390a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int32_null/sum_int32_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.int32Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64.aql
deleted file mode 100644
index d4b6851..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_int64.adm";
-
-sum( 
- for $x in [int64("1"), int64("2"), int64("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.1.ddl.aql
new file mode 100644
index 0000000..247c983
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.1.ddl.aql
@@ -0,0 +1,11 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+sum( 
+ for $x in [int64("1"), int64("2"), int64("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.3.query.aql
new file mode 100644
index 0000000..66a8806
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64/sum_int64.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in [int64("1"), int64("2"), int64("3")] 
+ return $x
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null.aql
deleted file mode 100644
index 7f6428a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_int64_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.int64Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.2.update.aql
new file mode 100644
index 0000000..d93253f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.3.query.aql
new file mode 100644
index 0000000..8751d93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int64_null/sum_int64_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.int64Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8.aql
deleted file mode 100644
index 8e8c4da..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/aggregate_sum_int8.adm";
-
-sum( 
- for $x in [int8("1"), int8("2"), int8("3")] 
- return $x
-)
-
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.1.ddl.aql
new file mode 100644
index 0000000..4c7f01d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.1.ddl.aql
@@ -0,0 +1,11 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+sum( 
+ for $x in [int8("1"), int8("2"), int8("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.3.query.aql
new file mode 100644
index 0000000..4fd5937
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8/sum_int8.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+sum( 
+ for $x in [int8("1"), int8("2"), int8("3")] 
+ return $x
+)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null.aql
deleted file mode 100644
index e1fad61..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-write output to nc1:"rttest/aggregate_sum_int8_null.adm";
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
-
-sum( 
- for $x in dataset('Numeric') 
- return $x.int8Field
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.1.ddl.aql
new file mode 100644
index 0000000..7cdcbea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.3.query.aql
new file mode 100644
index 0000000..fe8dc24
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_int8_null/sum_int8_null.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+sum( 
+ for $x in dataset('Numeric') 
+ return $x.int8Field
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.1.ddl.aql
new file mode 100644
index 0000000..63a57f0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description      :   sum() aggregate function must return the numeric sum, when non null values are given as input to sum().
+ *                  :   Get the sum for those tuples which are non null for salary fields.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+id:int32,
+sal:int32?
+}
+
+create dataset tdst(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.2.update.aql
new file mode 100644
index 0000000..bf6a34d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description      :   sum() aggregate function must return the numeric sum, when non null values are given as input to sum().
+ *                  :   Get the sum for those tuples which are non null for salary fields.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+use dataverse test;
+
+insert into dataset tdst({"id":123,"sal":1000});
+insert into dataset tdst({"id":113,"sal":2000});
+insert into dataset tdst({"id":163,"sal":3000});
+insert into dataset tdst({"id":161,"sal":4000});
+insert into dataset tdst({"id":173,"sal":5000});
+insert into dataset tdst({"id":183,"sal":null});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.3.query.aql
new file mode 100644
index 0000000..432866f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_null-with-pred/sum_null-with-pred.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description      :   sum() aggregate function must return the numeric sum, when non null values are given as input to sum().
+ *                  :   Get the sum for those tuples which are non null for salary fields.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+use dataverse test;
+
+sum(for $l in dataset('tdst')
+where not(is-null($l.sal))
+return $l.sal)
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.1.ddl.aql
new file mode 100644
index 0000000..d61f490
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description      :   Add numeric values with a null value, sum() aggregate function must return null.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+id:int32,
+sal:int32?
+}
+
+create dataset tdst(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.2.update.aql
new file mode 100644
index 0000000..bc2adb1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Description      :   Add numeric values with a null value, sum() aggregate function must return null.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+use dataverse test;
+
+insert into dataset tdst({"id":123,"sal":345});
+insert into dataset tdst({"id":113,"sal":335});
+insert into dataset tdst({"id":163,"sal":315});
+insert into dataset tdst({"id":161,"sal":365});
+insert into dataset tdst({"id":173,"sal":385});
+insert into dataset tdst({"id":183,"sal":null});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.3.query.aql
new file mode 100644
index 0000000..4b11a2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/sum_numeric_null/sum_numeric_null.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description      :   Add numeric values with a null value, sum() aggregate function must return null.
+ * Expected result  :   Success
+ * Date             :   July 20th 2012
+ */
+
+use dataverse test;
+
+// In AQL
+// sum(numeric + null) => null
+
+sum(for $l in dataset('tdst')
+return $l.sal)
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_01.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01.aql
deleted file mode 100644
index 9255694..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/boolean/and_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/boolean_and_01.adm";
-
-for $x in ["true"]
-for $y in ["false"]
-return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.3.query.aql
new file mode 100644
index 0000000..471abb5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_01/and_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in ["true"]
+for $y in ["false"]
+return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null.aql
deleted file mode 100644
index eb02bde..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/boolean_and_null.adm";
-
-let $x := boolean("true")
-let $y := null
-return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.3.query.aql
new file mode 100644
index 0000000..830ffe9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null/and_null.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x := boolean("true")
+let $y := null
+return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false.aql
deleted file mode 100644
index e2a26f6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/boolean_and_null_false.adm";
-
-let $x := boolean("false")
-let $y := null
-return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.3.query.aql
new file mode 100644
index 0000000..5e646a8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/and_null_false/and_null_false.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x := boolean("false")
+let $y := null
+return $x and $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/not_01.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01.aql
deleted file mode 100644
index 6297755..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/boolean/not_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/boolean_not_01.adm";
-
-let $x := true
-let $y := false
-let $z := null
-return {"not_x": not($x), "not_y": not($y), "not_z": not($z)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.3.query.aql
new file mode 100644
index 0000000..af1a6bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/boolean/not_01/not_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $x := true
+let $y := false
+let $z := null
+return {"not_x": not($x), "not_y": not($y), "not_z": not($z)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.3.query.aql
new file mode 100644
index 0000000..1723f03
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/date_order/date_order.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $d1 := date("2049-04-23")
+let $d2 := date("2012-02-29")
+let $d3 := date("2021-03-01")
+let $d4 := date("1362-02-28")
+let $d5 := date("1600-02-29")
+let $d6 := date("-0500-03-21")
+
+for $d in [$d1, $d2, $d3, $d4, $d5, $d6]
+order by $d
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order.aql
deleted file mode 100644
index 2e151ab..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order.aql
+++ /dev/null
@@ -1,17 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_datetime_order.adm";
-
-let $dt1 := datetime("2011-12-31T14:00:00-10:00")
-let $dt2 := datetime("2012-01-01T00:00:00Z")
-let $dt3 := datetime("2005-01-01T00:00:00+04:00")
-let $dt4 := datetime("2011-12-31T13:00:00-11:00")
-let $dt5 := datetime("2012-04-06T00:00:00Z")
-
-for $dt in [$dt1, $dt2, $dt3, $dt4, $dt5]
-order by $dt
-return $dt
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.3.query.aql
new file mode 100644
index 0000000..7c95006
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_order/datetime_order.3.query.aql
@@ -0,0 +1,17 @@
+use dataverse test;
+
+let $dt1 := datetime("2011-12-31T14:00:00-10:00")
+let $dt2 := datetime("2012-01-01T00:00:00Z")
+let $dt3 := datetime("2005-01-01T00:00:00+04:00")
+let $dt4 := datetime("2011-12-31T13:00:00-11:00")
+let $dt5 := datetime("2012-04-06T00:00:00Z")
+let $dt6 := datetime("-1937-07-07T23:00:00+08:00")
+let $dt7 := datetime("-1600-03-01T00:00:00.384+06:00")
+let $dt8 := datetime("-1600-02-29T23:59:59.999Z")
+let $dt9 := datetime("2000-02-29T23:59:59.999Z")
+let $dt10 := datetime("2000-03-01T01:59:59.999+07:00")
+let $dt11 := datetime("-1600-03-01T00:00:00.384-06:00")
+
+for $dt in [$dt1, $dt2, $dt3, $dt4, $dt5, $dt6, $dt7, $dt8, $dt9, $dt10, $dt11]
+order by $dt
+return $dt
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.1.ddl.aql
new file mode 100644
index 0000000..9d55e6a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type Tweet as closed {
+        id: int32,
+        tweetid: int64,
+        loc: point,
+        time: datetime,
+        text: string
+}
+
+create dataset TwitterData(Tweet)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.2.update.aql
new file mode 100644
index 0000000..6191e9e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset TwitterData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/smalltweets.txt"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.3.query.aql
new file mode 100644
index 0000000..da4bae2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_range/datetime_range.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $t in dataset('TwitterData')
+where $t.time > datetime("2011-05-15T16:00:00Z") and $t.time < datetime("2011-05-15T21:59:59Z")
+order by $t.id
+return { "id": $t.id }
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq.aql
deleted file mode 100644
index e38bdae..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_datetime_tzeq.adm";
-
-let $dt1 := datetime("2011-12-31T14:00:00-10:00")
-let $dt2 := datetime("2012-01-01T00:00:00Z")
-
-
-return [$dt1 = $dt2]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.3.query.aql
new file mode 100644
index 0000000..ff8fec8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/datetime_tzeq/datetime_tzeq.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+let $dt1 := datetime("2011-12-31T14:00:00-10:00")
+let $dt2 := datetime("2012-01-01T00:00:00Z")
+let $dt3 := datetime("2000-03-01T02:00:00+04:00")
+let $dt4 := datetime("2000-02-29T22:00:00Z")
+let $r1 := $dt1 = $dt2
+let $r2 := $dt3 = $dt4
+
+return { "result1": $r1,"result2": $r2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double.aql
deleted file mode 100644
index 55c7de0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/double.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_double.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c6 > $c1
-let $r2 := $c6 >= $c2
-let $r3 := $c6 < $c3
-let $r4 := $c6 <= $c4
-let $r5 := $c6 = $c5
-let $r6 := $c6 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/double/double.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.3.query.aql
new file mode 100644
index 0000000..8036041
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double/double.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c6 > $c1
+let $r2 := $c6 >= $c2
+let $r3 := $c6 < $c3
+let $r4 := $c6 <= $c4
+let $r5 := $c6 = $c5
+let $r6 := $c6 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01.aql
deleted file mode 100644
index 663be22..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_double_gte_01.adm";
-
-for $i in [0.8, 0.8999999761581421, 0.9, 0.901]
-where $i >= 0.9
-return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.3.query.aql
new file mode 100644
index 0000000..82abee5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double_gte_01/double_gte_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $i in [0.8, 0.8999999761581421, 0.9, 0.901]
+where $i >= 0.9
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null.aql
deleted file mode 100644
index f3ab7f6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/double_null.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_double_null.adm";
-
-let $c1 := double("-6.5d")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.3.query.aql
new file mode 100644
index 0000000..326adda
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/double_null/double_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := double("-6.5d")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01.aql
deleted file mode 100644
index 8e5f9af..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_eq_01.adm";
-
-for $x in [1, 2, 2]
-where $x = 2
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.3.query.aql
new file mode 100644
index 0000000..3e0c79b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/eq_01/eq_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in [1, 2, 2]
+where $x = 2
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float.aql
deleted file mode 100644
index 7cfbbfb..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/float.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_float.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c5 > $c1
-let $r2 := $c5 >= $c2
-let $r3 := $c5 < $c3
-let $r4 := $c5 <= $c4
-let $r5 := $c5 = $c5
-let $r6 := $c5 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/float/float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.3.query.aql
new file mode 100644
index 0000000..648b8e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/float/float.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c5 > $c1
+let $r2 := $c5 >= $c2
+let $r3 := $c5 < $c3
+let $r4 := $c5 <= $c4
+let $r5 := $c5 = $c5
+let $r6 := $c5 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null.aql
deleted file mode 100644
index afd70de..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/float_null.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_float_null.adm";
-
-let $c1 := float("-6.5d")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.3.query.aql
new file mode 100644
index 0000000..b9af2e9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/float_null/float_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := float("-6.5d")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01.aql
deleted file mode 100644
index efa5015..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_gt_01.adm";
-
-for $x in [1, 3, 2]
-where $x > 1
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.3.query.aql
new file mode 100644
index 0000000..ed9c82a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/gt_01/gt_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $x in [1, 3, 2]
+where $x > 1
+return $x
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01.aql
deleted file mode 100644
index a9ffa71..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_gte_01.adm";
-
-for $x in [1, 3, 2]
-where $x >= 2
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.3.query.aql
new file mode 100644
index 0000000..de9e4bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/gte_01/gte_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in [1, 3, 2]
+where $x >= 2
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16.aql
deleted file mode 100644
index 1f3701b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int16.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int16.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c2 > $c1
-let $r2 := $c2 >= $c2
-let $r3 := $c2 < $c3
-let $r4 := $c2 <= $c4
-let $r5 := $c2 = $c5
-let $r6 := $c2 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.3.query.aql
new file mode 100644
index 0000000..0ba4212
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int16/int16.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c2 > $c1
+let $r2 := $c2 >= $c2
+let $r3 := $c2 < $c3
+let $r4 := $c2 <= $c4
+let $r5 := $c2 = $c5
+let $r6 := $c2 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null.aql
deleted file mode 100644
index 6d8d80e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int16_null.adm";
-
-let $c1 := int16("3")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.3.query.aql
new file mode 100644
index 0000000..8aca9cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int16_null/int16_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := int16("3")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32.aql
deleted file mode 100644
index ab53691..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int32.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int32.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c3 > $c1
-let $r2 := $c3 >= $c2
-let $r3 := $c3 < $c3
-let $r4 := $c3 <= $c4
-let $r5 := $c3 = $c5
-let $r6 := $c3 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.3.query.aql
new file mode 100644
index 0000000..91b1a53
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int32/int32.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c3 > $c1
+let $r2 := $c3 >= $c2
+let $r3 := $c3 < $c3
+let $r4 := $c3 <= $c4
+let $r5 := $c3 = $c5
+let $r6 := $c3 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null.aql
deleted file mode 100644
index d1972e8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int32_null.adm";
-
-let $c1 := int32("3")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.3.query.aql
new file mode 100644
index 0000000..c6cfc43
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int32_null/int32_null.3.query.aql
@@ -0,0 +1,10 @@
+let $c1 := int32("3")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64.aql
deleted file mode 100644
index a050b47..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int64.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int64.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c4 > $c1
-let $r2 := $c4 >= $c2
-let $r3 := $c4 <= $c3
-let $r4 := $c4 < $c4
-let $r5 := $c4 = $c5
-let $r6 := $c4 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.3.query.aql
new file mode 100644
index 0000000..6f34ad7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int64/int64.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c4 > $c1
+let $r2 := $c4 >= $c2
+let $r3 := $c4 <= $c3
+let $r4 := $c4 < $c4
+let $r5 := $c4 = $c5
+let $r6 := $c4 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null.aql
deleted file mode 100644
index 5144cb4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int64_null.adm";
-
-let $c1 := int64("3")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.3.query.aql
new file mode 100644
index 0000000..7fc4730
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int64_null/int64_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := int64("3")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8.aql
deleted file mode 100644
index e06a33d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int8.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int8.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $r1 := $c1 > $c1
-let $r2 := $c1 >= $c2
-let $r3 := $c1 < $c3
-let $r4 := $c1 <= $c4
-let $r5 := $c1 = $c5
-let $r6 := $c1 != $c6
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.3.query.aql
new file mode 100644
index 0000000..70a41f8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int8/int8.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $r1 := $c1 > $c1
+let $r2 := $c1 >= $c2
+let $r3 := $c1 < $c3
+let $r4 := $c1 <= $c4
+let $r5 := $c1 = $c5
+let $r6 := $c1 != $c6
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null.aql
deleted file mode 100644
index a38c754..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_int8_null.adm";
-
-let $c1 := int8("3")
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.3.query.aql
new file mode 100644
index 0000000..5f96dd8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/int8_null/int8_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := int8("3")
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01.aql
deleted file mode 100644
index db28fdc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_lt_01.adm";
-
-for $x in [1, 3, 2]
-where $x < 3
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.3.query.aql
new file mode 100644
index 0000000..cf5c158
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/lt_01/lt_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in [1, 3, 2]
+where $x < 3
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01.aql
deleted file mode 100644
index e4c5ffa..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_lte_01.adm";
-
-for $x in [1, 3, 2]
-where $x <= 2
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.3.query.aql
new file mode 100644
index 0000000..45f83c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/lte_01/lte_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in [1, 3, 2]
+where $x <= 2
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01.aql
deleted file mode 100644
index ae88077..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_neq_01.adm";
-
-for $x in [1, 2, 2]
-where $x != 2
-return $x
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.3.query.aql
new file mode 100644
index 0000000..3903646
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/neq_01/neq_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in [1, 2, 2]
+where $x != 2
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01.aql
deleted file mode 100644
index 7c2ce39..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_numeric-comparison_01.adm";
-
-let $l := [1.1f, 1.0f, 1.2f, 0.9, 1.3, 1, 2]
-for $i in $l
-for $j in $l
-return [$i, $j, "=", $i = $j, "<", $i < $j, "<=", $i <= $j, ">", $i > $j, ">=", $i >= $j]
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.3.query.aql
new file mode 100644
index 0000000..11a19ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/numeric-comparison_01/numeric-comparison_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $l := [1.1f, 1.0f, 1.2f, 0.9, 1.3, 1, 2]
+for $i in $l
+for $j in $l
+return [$i, $j, "=", $i = $j, "<", $i < $j, "<=", $i <= $j, ">", $i > $j, ">=", $i >= $j]
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string.aql
deleted file mode 100644
index 6b63d52..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/string.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_string.adm";
-
-let $c1 := "AA"
-let $c2 := "B"
-let $r1 := $c1 > $c2
-let $r2 := $c1 >= $c2
-let $r3 := $c1 < $c2
-let $r4 := $c1 <= $c2
-let $r5 := $c1 = $c2
-let $r6 := $c1 != $c2
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/string/string.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.3.query.aql
new file mode 100644
index 0000000..ff6e16a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/string/string.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := "AA"
+let $c2 := "B"
+let $r1 := $c1 > $c2
+let $r2 := $c1 >= $c2
+let $r3 := $c1 < $c2
+let $r4 := $c1 <= $c2
+let $r5 := $c1 = $c2
+let $r6 := $c1 != $c2
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string_null.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null.aql
deleted file mode 100644
index f959e92..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/comparison/string_null.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/comparison_string_null.adm";
-
-let $c1 := "AA"
-let $c2 := [1]
-let $c3 := $c2[1]
-let $r1 := $c1 > $c3
-let $r2 := $c3 >= $c1
-let $r3 := $c1 < $c3
-let $r4 := $c3 <= $c1
-let $r5 := $c1 = $c3
-let $r6 := $c3 != $c1
-return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.3.query.aql
new file mode 100644
index 0000000..f391766
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/string_null/string_null.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := "AA"
+let $c2 := [1]
+let $c3 := $c2[1]
+let $r1 := $c1 > $c3
+let $r2 := $c3 >= $c1
+let $r3 := $c1 < $c3
+let $r4 := $c3 <= $c1
+let $r5 := $c1 = $c3
+let $r6 := $c3 != $c1
+return {"result1": $r1,"result2": $r2,"result3": $r3,"result4": $r4,"result5": $r5, "result6": $r6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.1.ddl.aql
new file mode 100644
index 0000000..d330bc0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.3.query.aql
new file mode 100644
index 0000000..9a9e858
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/comparison/time_order/time_order.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $t1 := time("13:00:00.382-10:00")
+let $t2 := time("23:59:59.999Z")
+let $t3 := time("22:00:00+03:00")
+let $t4 := time("00:00:00.00Z")
+let $t5 := time("00:00:00.00-02:00")
+let $t6 := time("00:00:00.47+04:00")
+
+for $t in [$t1, $t2, $t3, $t4, $t5, $t6]
+order by $t
+return $t
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.3.query.aql
new file mode 100644
index 0000000..e1fdcfb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/add-null/add-null.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :   Add anything plus null, the result should be null.
+ * Expected Result  :   Success
+ * Date             :   19th July 2012
+ */
+
+let $x := 1
+let $y := 10
+let $z := 20
+return ($x+$y+$z+null)
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01.aql
deleted file mode 100644
index 479f20f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_boolean_01.adm";
-
-let $c1 := boolean("true")
-let $c2 := boolean("false")
-return {"boolean1": $c1,"boolean2": $c2}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.3.query.aql
new file mode 100644
index 0000000..335fed9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/boolean_01/boolean_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := boolean("true")
+let $c2 := boolean("false")
+return {"boolean1": $c1,"boolean2": $c2}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01.aql
deleted file mode 100644
index 3af819d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_circle_01.adm";
-
-let $c1 := circle("10.1234,11.1e-1 +10.2E-2")
-let $c2 := circle("0.1234,-1.00e-10 +10.5E-2")
-return {"circle1": $c1,"circle2": $c2}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.3.query.aql
new file mode 100644
index 0000000..1420d06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/circle_01/circle_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $c1 := circle("10.1234,11.1e-1 +10.2E-2")
+let $c2 := circle("0.1234,-1.00e-10 +10.5E-2")
+return {"circle1": $c1,"circle2": $c2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/date_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01.aql
deleted file mode 100644
index c889627..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/date_01.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_date_01.adm";
-
-let $c1 := date("2010-10-30+05:00")
-let $c2 := date("2010-10-30-10:15")
-let $c3 := date("1987-11-19")
-let $c4 := date("1987-11-19Z")
-let $c5 := date("-1987-11-19+08:30")
-let $c6 := date("0001-12-27")
-let $c7 := date("-1951-01-27-01:45")
-return {"date1": $c1, "date2": $c2, "date3": $c3, "date4": $c4, "date5": $c5, "date6": $c6, "date7": $c7}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.2.update.aql
new file mode 100644
index 0000000..139597f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.2.update.aql
@@ -0,0 +1,2 @@
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.3.query.aql
new file mode 100644
index 0000000..325e4c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/date_01/date_01.3.query.aql
@@ -0,0 +1,14 @@
+use dataverse test;
+
+let $c1 := date("2010-10-30")
+let $c2 := date("1987-11-19")
+let $c3 := date("-1987-11-19")
+let $c4 := date("0001-12-27")
+let $c5 := date("-1951-12-27")
+let $c6 := date("-2043-11-19")
+let $c7 := date("-19280329")
+let $c8 := date("19280329")
+let $c9 := date("19000228")
+let $c10 := date("20000229")
+
+return {"date1": $c1, "date2": $c2, "date3": $c3, "date4": $c4, "date5": $c5, "date6": $c6, "date7": $c7, "date8": $c8, "date9": $c9, "date10": $c10}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01.aql
deleted file mode 100644
index 611feff..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-use dataverse test;
-
-write output to nc1:"rttest/constructor_datetime_01.adm";
-
-let $c1 := datetime("2010-10-30T10:50:56:999+05:45")
-let $c2 := datetime("2010-10-30T10:30:56:250-10:00")
-let $c3 := datetime("1987-11-19T09:20:00:200")
-let $c4 := datetime("1987-11-19T10:50:56Z")
-let $c5 := datetime("-1987-11-19T10:50:56:099-05:30")
-let $c6 := datetime("-0001-11-19T10:50:56:719Z")
-let $c7 := datetime("1951-12-27T12:20:15")
-return {"datetime1": $c1, "datetime2": $c2, "datetime3": $c3, "datetime4": $c4, "datetime5": $c5, "datetime6": $c6, "datetime7": $c7}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.3.query.aql
new file mode 100644
index 0000000..2482028
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/datetime_01/datetime_01.3.query.aql
@@ -0,0 +1,17 @@
+use dataverse test;
+
+let $c1 := datetime("2010-10-30T10:50:56.999+05:45")
+let $c2 := datetime("2010-10-30T10:30:56.250-10:00")
+let $c3 := datetime("1987-11-19T09:20:00.200Z")
+let $c4 := datetime("1987-11-19T10:50:56Z")
+let $c5 := datetime("-1987-11-19T10:50:56.099-05:30")
+let $c6 := datetime("-0001-11-19T10:50:56.719Z")
+let $c7 := datetime("1951-12-27T12:20:15Z")
+let $c8 := datetime("2043-11-19T10:50:56.719Z")
+let $c9 := datetime("-19280329T174937374-0630")
+let $c10 := datetime("-19280329T174937374+0630")
+let $c11 := datetime("-19280329T174937374")
+let $c12 := datetime("-19280329T174937374+0630")
+let $c13 := datetime("-19280329T17493737+0630")
+let $c14 := datetime("-19280301T05493737+0630")
+return {"datetime1": $c1, "datetime2": $c2, "datetime3": $c3, "datetime4": $c4, "datetime5": $c5, "datetime6": $c6, "datetime7": $c7, "datetime8": $c8, "datetime9": $c9, "datetime10": $c10, "datetime11": $c11, "datetime12": $c12, "datetime13": $c13, "datetime14": $c14}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/double_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01.aql
deleted file mode 100644
index 5595917..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/double_01.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_double_01.adm";
-
-let $c1 := double("NaN")
-let $c2 := double("INF")
-let $c3 := double("-INF")
-let $c4 := double("-80.20d")
-let $c5 := double("-20.56e-30")
-let $c6 := double("-20.56e-300")
-return {"double1": $c1,"double2": $c2,"double3": $c3,"double4": $c4,"double5": $c5,"double6": $c6}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.3.query.aql
new file mode 100644
index 0000000..3408891
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/double_01/double_01.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+
+let $c1 := double("NaN")
+let $c2 := double("INF")
+let $c3 := double("-INF")
+let $c4 := double("-80.20d")
+let $c5 := double("-20.56e-30")
+let $c6 := double("-20.56e-300")
+return {"double1": $c1,"double2": $c2,"double3": $c3,"double4": $c4,"double5": $c5,"double6": $c6}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01.aql
deleted file mode 100644
index 011996c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_duration_01.adm";
-
-let $c1 := duration("D30Y10M25DT13H12M50S")
-let $c2 := duration("D25DT13H12M50S")
-let $c3 := duration("DT13H12M50S")
-let $c4 := duration("D30YT12MS")
-let $c5 := duration("DT13H")
-let $c6 := duration("-D30Y10M25DT13H12M50S")
-let $c7 := duration("-D25DT13H12M50S")
-let $c8 := duration("-DT13H50S")
-return {"duration1": $c1, "duration2": $c2, "duration3": $c3, "duration4": $c4, "duration5": $c5, "duration6": $c6, "duration7": $c7, "duration8": $c8}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.3.query.aql
new file mode 100644
index 0000000..6db5228
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/duration_01/duration_01.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $c1 := duration("P30Y10M25DT13H12M50S")
+let $c2 := duration("P25DT13H12M50S")
+let $c3 := duration("PT13H12M50S")
+let $c4 := duration("P30YT12MS")
+let $c5 := duration("PT13H")
+let $c6 := duration("-P30Y10M25DT13H12M50S")
+let $c7 := duration("-P25DT13H12M50S")
+let $c8 := duration("-PT13H50S")
+let $c9 := duration("P120D")
+let $c10 := duration("-P28M")
+let $c11 := duration("PT29M90.937S")
+let $c12 := duration("P300Y15M60DT300H98M482.435S")
+return {"duration1": $c1, "duration2": $c2, "duration3": $c3, "duration4": $c4, "duration5": $c5, "duration6": $c6, "duration7": $c7, "duration8": $c8, "duration9": $c9, "duration10": $c10, "duration11": $c11, "duration12": $c12}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/float_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01.aql
deleted file mode 100644
index 4f179cc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/float_01.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_float_01.adm";
-
-let $c1 := float("NaN")
-let $c2 := float("INF")
-let $c3 := float("-INF")
-let $c4 := float("-80.20")
-let $c5 := float("-20.56e-30")
-// +5.0E10 would not generate a precise calc. even with parseFloat
- 
-
-return {"float1": $c1,"float2": $c2, "float3": $c3,"float4": $c4,"float5": $c5}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.3.query.aql
new file mode 100644
index 0000000..f17e802
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/float_01/float_01.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := float("NaN")
+let $c2 := float("INF")
+let $c3 := float("-INF")
+let $c4 := float("-80.20")
+let $c5 := float("-20.56e-30")
+// +5.0E10 would not generate a precise calc. even with parseFloat
+ 
+
+return {"float1": $c1,"float2": $c2, "float3": $c3,"float4": $c4,"float5": $c5}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/int_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01.aql
deleted file mode 100644
index d35c84f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/int_01.aql
+++ /dev/null
@@ -1,16 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_int_01.adm";
-
-let $c1 := int8("+80i8")
-let $c2 := int16("160")
-let $c3 := int32("+320i32")
-let $c4 := int64("640")
-let $c5 := int8("-80")
-let $c6 := int16("-160i16")
-let $c7 := int32("-320")
-let $c8 := int64("-640i64")
-return {"int8": $c1,"int16": $c2,"int32": $c3, "int64": $c4, "int8": $c5,"int16": $c6,"int32": $c7, "int64": $c8}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.3.query.aql
new file mode 100644
index 0000000..371e60b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/int_01/int_01.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := int8("+80i8")
+let $c2 := int16("160")
+let $c3 := int32("+320i32")
+let $c4 := int64("640")
+let $c5 := int8("-80")
+let $c6 := int16("-160i16")
+let $c7 := int32("-320")
+let $c8 := int64("-640i64")
+let $c9 := int64("-9223372036854775808")
+return {"int8": $c1,"int16": $c2,"int32": $c3, "int64": $c4, "int8_2": $c5,"int16_2": $c6,"int32_2": $c7, "int64_2": $c8, "int64_min" : $c9}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.3.query.aql
new file mode 100644
index 0000000..ebb3d2d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/interval/interval.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $itv1 := interval-from-date("2010-10-30", "2012-10-21")
+let $itv2 := interval-from-time("03:04:05.678-11:00", "232425267+0200")
+let $itv3 := interval-from-datetime("-1987-11-19T02:43:57.938+08:00", "19991112T124935948-0700")
+let $itv4 := interval-start-from-date("0001-12-27", "P3Y394DT48H398.483S")
+let $itv5 := interval-start-from-time("20:03:20.948", "P60DT48M389.938S")
+let $itv6 := interval-start-from-datetime("-2043-11-19T15:32:39.293", "P439Y3M20DT20H39M58.949S")
+
+return {"interval1": $itv1, "interval2": $itv2, "interval3": $itv3, "interval4": $itv4, "interval5": $itv5, "interval6": $itv6}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/line_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01.aql
deleted file mode 100644
index 4317903..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/line_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_line_01.adm";
-
-let $c1 := line("10.1234,11.1e-1 +10.2E-2,-11.22")
-let $c2 := line("0.1234,-1.00e-10 +10.5E-2,-01.02")
-return {"line1": $c1,"line2": $c2}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.3.query.aql
new file mode 100644
index 0000000..c974f05
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/line_01/line_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $c1 := line("10.1234,11.1e-1 +10.2E-2,-11.22")
+let $c2 := line("0.1234,-1.00e-10 +10.5E-2,-01.02")
+return {"line1": $c1,"line2": $c2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/point_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01.aql
deleted file mode 100644
index 09c770c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/point_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_point_01.adm";
-
-let $c1 := point("80.10d, -10E5")
-let $c2 := point3d("5e2, -10E+5, +10.5e-10d")
-let $c3 := point("5.10E-10d, -10E5")
-let $c4 := point3d("0.5e+2d, -10.0E+5d, +10.05e-10")
-return {"point1": $c1,"point3d1": $c2,"point2": $c3, "point3d2": $c4}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.3.query.aql
new file mode 100644
index 0000000..d6313db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/point_01/point_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := point("80.10d, -10E5")
+let $c2 := point3d("5e2, -10E+5, +10.5e-10d")
+let $c3 := point("5.10E-10d, -10E5")
+let $c4 := point3d("0.5e+2d, -10.0E+5d, +10.05e-10")
+return {"point1": $c1,"point3d1": $c2,"point2": $c3, "point3d2": $c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01.aql
deleted file mode 100644
index 750c559..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_polygon_01.adm";
-
-let $c1 := polygon("-1.2,+1.3e2 -2.14E+5,2.15 -3.5e+2,03.6 -4.6E-3,+4.81")
-let $c2 := polygon("-1.0,+10.5e2 -02.15E+50,2.5 -1.0,+3.3e3 -2.50E+05,20.15 +3.5e+2,03.6 -4.60E-3,+4.75 -2,+1.0e2 -2.00E+5,20.10 30.5,03.25 -4.33E-3,+4.75")
-return {"polygon1": $c1,"polygon2": $c2}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.3.query.aql
new file mode 100644
index 0000000..7bb8e06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/polygon_01/polygon_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $c1 := polygon("-1.2,+1.3e2 -2.14E+5,2.15 -3.5e+2,03.6 -4.6E-3,+4.81")
+let $c2 := polygon("-1.0,+10.5e2 -02.15E+50,2.5 -1.0,+3.3e3 -2.50E+05,20.15 +3.5e+2,03.6 -4.60E-3,+4.75 -2,+1.0e2 -2.00E+5,20.10 30.5,03.25 -4.33E-3,+4.75")
+return {"polygon1": $c1,"polygon2": $c2}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.2.update.aql
new file mode 100644
index 0000000..139597f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.2.update.aql
@@ -0,0 +1,2 @@
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.3.query.aql
new file mode 100644
index 0000000..ddfcd3a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-01/primitive-01.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Test case name : primitive-01.aql
+ * Description    : Test primitive integer type int8 constructor function with boundary values
+ * Success        : Yes
+ * Date           : May 7th 2012
+ *
+ */
+
+//Boundary value tests int8().
+//with MIN and MAX supported values.
+
+let $a:=int8("-127")
+let $b:=int8("127")
+let $c:=int8("0")
+let $d:=int8("1")
+let $e:=int8("-1")
+return {"$a":$a,"$b":$b,"$c":$c,"$d":$d,"$e":$e}
+
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.3.query.aql
new file mode 100644
index 0000000..eb006a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-02/primitive-02.3.query.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case name : primitive-02.aql
+ * Description    : Test primitive integer type int16 constructor function with boundary values
+ * Success        : Yes
+ * Date           : May 7th 2012
+ *
+ */
+
+//Boundary value tests int16().
+//with MIN and MAX supported values.
+
+let $a:=int16("-32767")
+let $b:=int16("32767")
+let $c:=int16("0")
+let $d:=int16("1")
+let $e:=int16("-1")
+let $f:=int16("16383")
+let $g:=int16("-16383")
+
+return {"$a":$a,"$b":$b,"$c":$c,"$d":$d,"$e":$e,"$f":$f,"$g":$g}
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.3.query.aql
new file mode 100644
index 0000000..2ab2aba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-03/primitive-03.3.query.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case name : primitive-03.aql
+ * Description    : Test primitive integer type int32 constructor function with boundary values
+ * Success        : Yes
+ * Date           : May 7th 2012
+ *
+ */
+
+//Boundary value tests int32().
+//with MIN and MAX supported values.
+
+let $a:=int32("-2147483647")
+let $b:=int32("2147483647")
+
+let $c:=int32("0")
+let $d:=int32("1")
+let $e:=int32("-1")
+let $f:=int32("1073741828")
+let $g:=int32("-1073741828")
+
+return {"$a":$a,"$b":$b,"$c":$c,"$d":$d,"$e":$e,"$f":$f,"$g":$g}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.3.query.aql
new file mode 100644
index 0000000..cf67348
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/primitive-04/primitive-04.3.query.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case name : primitive-04.aql
+ * Description    : Test primitive integer type int64 constructor functions with boundary values
+ * Success        : Yes
+ * Date           : May 7th 2012
+ *
+ */
+
+//Boundary value tests int64().
+//with MIN and MAX supported values.
+
+let $a:=int64("9222872036854775809")
+let $b:=int64("-9222872036854775809")
+
+let $c:=int64("0")
+let $d:=int64("1")
+let $e:=int64("-1")
+let $f:=int64("4611436018427387904")
+let $g:=int64("-4611436018427387904")
+
+return {"$a":$a,"$b":$b,"$c":$c,"$d":$d,"$e":$e,"$f":$f,"$g":$g}
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/string_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01.aql
deleted file mode 100644
index fea0cb1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/string_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_string_01.adm";
-
-let $c1 := string("true")
-let $c2 := string("false\"")
-return {"string1": $c1,"string2": $c2}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.3.query.aql
new file mode 100644
index 0000000..49d2214
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/string_01/string_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := string("true")
+let $c2 := string("false\"")
+return {"string1": $c1,"string2": $c2}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/time_01.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01.aql
deleted file mode 100644
index caa90f0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/constructor/time_01.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/constructor_time_01.adm";
-
-let $c1 := time("10:50:56:200+05:00")
-let $c2 := time("10:50:56:200-10:15")
-let $c3 := time("10:50:56")
-let $c4 := time("10:50:56:200Z")
-let $c5 := time("23:59:59:999-13:30")
-let $c6 := time("24:00:00:000+14:45")
-let $c7 := time("12:59:00:019-01:00")
-return {"time1": $c1, "time2": $c2, "time3": $c3, "time4": $c4, "time5": $c5, "time6": $c6, "time7": $c7}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.3.query.aql
new file mode 100644
index 0000000..a5d6e54
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/constructor/time_01/time_01.3.query.aql
@@ -0,0 +1,14 @@
+use dataverse test;
+
+let $c1 := time("10:50:56.200+05:00")
+let $c2 := time("10:50:56.200-10:15")
+let $c3 := time("10:50:56")
+let $c4 := time("10:50:56.200Z")
+let $c5 := time("23:59:59.999-13:30")
+let $c6 := time("00:00:00.000+14:45")
+let $c7 := time("12:59:00.019-01:00")
+let $c8 := time("12:59:00.01-01:00")
+let $c9 := time("12:59:00.019-01:00")
+let $c10 := time("12590001-0100")
+let $c11 := time("125900019+0100")
+return {"time1": $c1, "time2": $c2, "time3": $c3, "time4": $c4, "time5": $c5, "time6": $c6, "time7": $c7, "time8": $c8, "time9": $c9, "time10": $c10, "time11": $c11}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.1.ddl.aql
new file mode 100644
index 0000000..df976b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.1.ddl.aql
@@ -0,0 +1,38 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to access datasets.
+ * Expected Res : Success
+ * Date         : 29th Aug 2012
+ */
+
+drop dataverse student if exists;
+drop dataverse teacher if exists;
+
+create dataverse student;
+create dataverse teacher;
+
+use dataverse student;
+use dataverse teacher;
+
+create type student.stdType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create type teacher.tchrType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.2.update.aql
new file mode 100644
index 0000000..74c6cda
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.2.update.aql
@@ -0,0 +1,21 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to access datasets.
+ * Expected Res : Success
+ * Date         : 29th Aug 2012
+ */
+
+
+use dataverse student;
+use dataverse teacher;
+
+
+insert into dataset student.ugdstd({"id":457,"name":"John Doe","age":22,"sex":"M","dept":"Dance"});
+
+insert into dataset student.gdstd({"id":418,"name":"John Smith","age":26,"sex":"M","dept":"Economics"});
+
+insert into dataset teacher.prof({"id":152,"name":"John Meyer","age":42,"sex":"M","dept":"History"});
+
+insert into dataset teacher.pstdoc({"id":259,"name":"Sophia Reece","age":36,"sex":"F","dept":"Anthropology"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.3.query.aql
new file mode 100644
index 0000000..80cdd09
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv01/cross-dv01.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to access datasets.
+ * Expected Res : Success
+ * Date         : 29th Aug 2012
+ */
+
+
+for $s in dataset('student.ugdstd')
+for $p in dataset('teacher.prof')
+for $a in dataset('student.gdstd')
+for $b in dataset('teacher.pstdoc')
+return {"ug-student":$s,"prof":$p,"grd-student":$a,"postdoc":$b}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.1.ddl.aql
new file mode 100644
index 0000000..de1cf16
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.1.ddl.aql
@@ -0,0 +1,35 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types and query Metadata to verify.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+drop dataverse student if exists;
+drop dataverse teacher if exists;
+
+create dataverse student;
+create dataverse teacher;
+
+create type student.stdType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create type teacher.tchrType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.2.update.aql
new file mode 100644
index 0000000..455bb2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types and query Metadata to verify.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+insert into dataset student.ugdstd({"id":457,"name":"John Doe","age":22,"sex":"M","dept":"Dance"});
+
+insert into dataset student.gdstd({"id":418,"name":"John Smith","age":26,"sex":"M","dept":"Economics"});
+
+insert into dataset teacher.prof({"id":152,"name":"John Meyer","age":42,"sex":"M","dept":"History"});
+
+insert into dataset teacher.pstdoc({"id":259,"name":"Sophia Reece","age":36,"sex":"F","dept":"Anthropology"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.3.query.aql
new file mode 100644
index 0000000..66b6e61
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv02/cross-dv02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types and query Metadata to verify.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='student' or $l.DataverseName='teacher'
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.1.ddl.aql
new file mode 100644
index 0000000..a601ac5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.1.ddl.aql
@@ -0,0 +1,45 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : Query metadata to verify datasets are dropped.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+drop dataverse student if exists;
+drop dataverse teacher if exists;
+
+create dataverse student;
+create dataverse teacher;
+
+use dataverse student;
+use dataverse teacher;
+
+create type student.stdType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create type teacher.tchrType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
+drop dataset student.ugdstd;
+drop dataset student.gdstd;
+drop dataset teacher.prof;
+drop dataset teacher.pstdoc;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.2.update.aql
new file mode 100644
index 0000000..24b0e09
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : Query metadata to verify datasets are dropped.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+// no inserts, deletes here
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.3.query.aql
new file mode 100644
index 0000000..e3fe784
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv03/cross-dv03.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : Query metadata to verify datasets are dropped.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+count(
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='student' or $l.DataverseName='teacher'
+return $l
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.1.ddl.aql
new file mode 100644
index 0000000..fb5214a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.1.ddl.aql
@@ -0,0 +1,51 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : re create the datasets 
+ *              : Query metadata to verify datasets are created.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+drop dataverse student if exists;
+drop dataverse teacher if exists;
+
+create dataverse student;
+create dataverse teacher;
+
+use dataverse student;
+use dataverse teacher;
+
+create type student.stdType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create type teacher.tchrType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
+drop dataset student.ugdstd;
+drop dataset student.gdstd;
+drop dataset teacher.prof;
+drop dataset teacher.pstdoc;
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.2.update.aql
new file mode 100644
index 0000000..12746f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : re create the datasets 
+ *              : Query metadata to verify datasets are created.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+// no inserts, deletes from here
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.3.query.aql
new file mode 100644
index 0000000..3745d9c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv04/cross-dv04.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Test cross dataverse functionality
+ *              : use dataverse statement is now optional.
+ *              : Use fully qualified names to create datasets, types.
+ *              : drop datasets using fully qualified names
+ *              : re create the datasets 
+ *              : Query metadata to verify datasets are created.
+ * Expected Res : Success
+ * Date         : 28th Aug 2012
+ */
+
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='student' or $l.DataverseName='teacher'
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.1.ddl.aql
new file mode 100644
index 0000000..910e370
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Description     : Use fully qualified name to create dataset, type and index
+ *                 : and to access dataset
+ * Expected Result : Success
+ * Date            : 29th August 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+create type test.Emp as closed {
+id:int32,
+fname:string,
+lname:string,
+age:int32,
+dept:string
+}
+
+create dataset test.employee(Emp) primary key id;
+
+create index idx_employee_f_l_name on test.employee(fname,lname);
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.2.update.aql
new file mode 100644
index 0000000..26ba47b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.2.update.aql
@@ -0,0 +1,14 @@
+/*
+ * Description     : Use fully qualified name to create dataset, type and index
+ *                 : and to access dataset
+ * Expected Result : Success
+ * Date            : 29th August 2012
+ */
+
+use dataverse test;
+
+load dataset test.employee
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/names.adm"),("format"="delimited-text"),("delimiter"="|"));
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.3.query.aql
new file mode 100644
index 0000000..4ecbe22
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv07/cross-dv07.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     : Use fully qualified name to create dataset, type and index
+ *                 : and to access dataset
+ * Expected Result : Success
+ * Date            : 29th August 2012
+ */
+
+for $l in dataset('test.employee')
+where $l.fname="Julio" and $l.lname="Isa"
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.1.ddl.aql
new file mode 100644
index 0000000..b9f94d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.1.ddl.aql
@@ -0,0 +1,37 @@
+/*
+ * Description  : Create two UDFs in two different dataverses and create datasets in tose dvs
+ *              : access the datasets from the UDF defined in the other dataverse and invoke one of the UDF
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ */
+
+// dv1 - udf1 - dataset1
+// dv2 - udf2 - dataset2
+
+drop dataverse test if exists;
+drop dataverse fest if exists;
+
+create dataverse test;
+create dataverse fest;
+
+create type test.testtype as open {
+id : int32
+}
+
+create type fest.testtype as open {
+id : int32
+}
+
+create dataset test.t1(testtype) primary key id;
+create dataset fest.t1(testtype) primary key id;
+
+create function test.f1(){
+for $l in dataset('fest.t1')
+return $l
+}
+
+create function fest.f1(){
+for $m in dataset('test.t1')
+return $m
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.2.update.aql
new file mode 100644
index 0000000..fb895d4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.2.update.aql
@@ -0,0 +1,22 @@
+/*
+ * Description  : Create two UDFs in two different dataverses and create datasets in tose dvs
+ *              : access the datasets from the UDF defined in the other dataverse and invoke one of the UDF
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ */
+
+// dv1 - udf1 - dataset1
+// dv2 - udf2 - dataset2
+
+insert into dataset test.t1({"id":24});
+insert into dataset test.t1({"id":23});
+insert into dataset test.t1({"id":21});
+insert into dataset test.t1({"id":44});
+insert into dataset test.t1({"id":64});
+
+insert into dataset fest.t1({"id":24});
+insert into dataset fest.t1({"id":23});
+insert into dataset fest.t1({"id":21});
+insert into dataset fest.t1({"id":44});
+insert into dataset fest.t1({"id":64});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.3.query.aql
new file mode 100644
index 0000000..b81e85f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv08/cross-dv08.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create two UDFs in two different dataverses and create datasets in tose dvs
+ *              : access the datasets from the UDF defined in the other dataverse and invoke one of the UDF
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ */
+
+// dv1 - udf1 - dataset1
+// dv2 - udf2 - dataset2
+
+let $a := test.f1()
+let $b := fest.f1()
+return { "a" : $a, "b" : $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.1.ddl.aql
new file mode 100644
index 0000000..e9e0b63
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Description  : Create user defined funs. in two different dataverses
+ *              : and invoke one of them.
+ *              : In this test we use fully qualified names to access and create the UDFs.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+drop dataverse testdv1 if exists;
+drop dataverse testdv2 if exists;
+create dataverse testdv1;
+create dataverse testdv2;
+
+create function testdv1.fun01(){
+"function 01"
+}
+
+create function testdv2.fun02(){
+"function 02"
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.2.update.aql
new file mode 100644
index 0000000..347f95a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Create user defined funs. in two different dataverses
+ *              : and invoke one of them.
+ *              : In this test we use fully qualified names to access and create the UDFs.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.3.query.aql
new file mode 100644
index 0000000..f650d58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv09/cross-dv09.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create user defined funs. in two different dataverses
+ *              : and invoke one of them.
+ *              : In this test we use fully qualified names to access and create the UDFs.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+use dataverse testdv1;
+
+testdv1.fun01()
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.1.ddl.aql
new file mode 100644
index 0000000..c3c1df9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.1.ddl.aql
@@ -0,0 +1,20 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Invoke one UDF from the body of the other UDF.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+drop dataverse testdv1 if exists;
+drop dataverse testdv2 if exists;
+create dataverse testdv1;
+create dataverse testdv2;
+
+create function testdv1.fun01(){
+testdv2.fun02()
+}
+
+create function testdv2.fun02(){
+"function 02"
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.2.update.aql
new file mode 100644
index 0000000..8cd46af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.2.update.aql
@@ -0,0 +1,7 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Invoke one UDF from the body of the other UDF.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.3.query.aql
new file mode 100644
index 0000000..bf9e2f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv11/cross-dv11.3.query.aql
@@ -0,0 +1,10 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Invoke one UDF from the body of the other UDF.
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+use dataverse testdv1;
+
+testdv1.fun01()
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.1.ddl.aql
new file mode 100644
index 0000000..01483c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.1.ddl.aql
@@ -0,0 +1,19 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Bind the results returned by each UDF to a variable and return those variables
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+drop dataverse testdv1 if exists;
+drop dataverse testdv2 if exists;
+create dataverse testdv1;
+create dataverse testdv2;
+
+create function testdv1.fun01(){
+"function 01"
+}
+
+create function testdv2.fun02(){
+"function 02"
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.2.update.aql
new file mode 100644
index 0000000..efe27b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.2.update.aql
@@ -0,0 +1,7 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Bind the results returned by each UDF to a variable and return those variables
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.3.query.aql
new file mode 100644
index 0000000..8ac926b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv12/cross-dv12.3.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Description  : Create two UDFs in two different dataverses
+ *              : Bind the results returned by each UDF to a variable and return those variables
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+
+use dataverse testdv1;
+use dataverse testdv2;
+
+let $a := testdv1.fun01()
+let $b := testdv2.fun02()
+return {"fun-01":$a,"fun-02":$b}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.1.ddl.aql
new file mode 100644
index 0000000..ef9f50e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Description  : Create UDFs in different dataverses
+ *              : Test for recursion in those UDFs
+ * Expected Res : Failure - Recursion is not allowed!
+ * Date         : 31st Aug 2012
+ * Ignored      : This test is currently not part of the test build, because it being a negative test case expectedly throws an exception. 
+ */
+
+drop dataverse testdv1 if exists;
+drop dataverse testdv2 if exists;
+create dataverse testdv1;
+create dataverse testdv2;
+
+create function testdv1.fun01(){
+testdv2.fun02()
+}
+
+create function testdv2.fun02(){
+testdv2.fun03()
+}
+
+create function testdv2.fun03(){
+testdv1.fun01()
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.2.update.aql
new file mode 100644
index 0000000..99b9bb7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.2.update.aql
@@ -0,0 +1,8 @@
+/* 
+ * Description  : Create UDFs in different dataverses
+ *              : Test for recursion in those UDFs
+ * Expected Res : Failure - Recursion is not allowed!
+ * Date         : 31st Aug 2012
+ * Ignored      : This test is currently not part of the test build, because it being a negative test case expectedly throws an exception. 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.3.query.aql
new file mode 100644
index 0000000..fa54a3c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv13/cross-dv13.3.query.aql
@@ -0,0 +1,11 @@
+/* 
+ * Description  : Create UDFs in different dataverses
+ *              : Test for recursion in those UDFs
+ * Expected Res : Failure - Recursion is not allowed!
+ * Date         : 31st Aug 2012
+ * Ignored      : This test is currently not part of the test build, because it being a negative test case expectedly throws an exception. 
+ */
+
+use dataverse testdv1;
+
+testdv1.fun01();
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.1.ddl.aql
new file mode 100644
index 0000000..b176f45
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.1.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create UDF and invoke UDF in return clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+drop dataverse testdv1 if exists;
+create dataverse testdv1;
+
+create function testdv1.fun01(){
+100
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.2.update.aql
new file mode 100644
index 0000000..0d049ad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description  : Create UDF and invoke UDF in return clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.3.query.aql
new file mode 100644
index 0000000..e66e35d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv14/cross-dv14.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF and invoke UDF in return clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : 31st Aug 2012
+ */
+
+
+use dataverse testdv1;
+
+let $a := true
+return testdv1.fun01();
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.1.ddl.aql
new file mode 100644
index 0000000..4090d6f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : Create user defined functions using fully qualified names
+ *              : verify their details in Function dataset in Metadata dataverse.
+ * Expected Res :
+ * Date         : 30th Aug 2012
+ */
+
+drop dataverse testdv1 if exists;
+create dataverse testdv1;
+
+// UDF with no inputs
+create function testdv1.fun01(){
+100
+}
+
+// UDF with one input
+create function testdv1.fun02($a){
+"function 02"
+}
+
+// UDF with two inputs
+create function testdv1.fun03($b,$c){
+$b+$c
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.2.update.aql
new file mode 100644
index 0000000..e8a113fee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create user defined functions using fully qualified names
+ *              : verify their details in Function dataset in Metadata dataverse.
+ * Expected Res :
+ * Date         : 30th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.3.query.aql
new file mode 100644
index 0000000..a6dc422
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv15/cross-dv15.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create user defined functions using fully qualified names
+ *              : verify their details in Function dataset in Metadata dataverse.
+ * Expected Res :
+ * Date         : 30th Aug 2012
+ */
+
+
+for $l in dataset('Metadata.Function')
+where $l.DataverseName='testdv1'
+return $l;
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.1.ddl.aql
new file mode 100644
index 0000000..8f42542
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Detect Recursion in UDFs
+ * Expected Res : Failure
+ * Date         : 30 Aug 2012
+ * Ignored      : Not part of test build, as its a negative test case that thrwos an exception
+ */
+
+drop dataverse testdv1 if exists;
+create dataverse testdv1;
+
+// UDF with no inputs
+create function testdv1.fun01(){
+testdv1.fun02()
+}
+
+// UDF with one input
+create function testdv1.fun02(){
+testdv1.fun03()
+}
+
+// UDF with two inputs
+create function testdv1.fun03(){
+testdv1.fun04()
+}
+
+create function testdv1.fun04(){
+testdv1.fun02()
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.2.update.aql
new file mode 100644
index 0000000..2c8ef2c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Detect Recursion in UDFs
+ * Expected Res : Failure
+ * Date         : 30 Aug 2012
+ * Ignored      : Not part of test build, as its a negative test case that thrwos an exception
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.3.query.aql
new file mode 100644
index 0000000..dc657bb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv16/cross-dv16.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Detect Recursion in UDFs
+ * Expected Res : Failure
+ * Date         : 30 Aug 2012
+ * Ignored      : Not part of test build, as its a negative test case that thrwos an exception
+ */
+
+use dataverse testdv1;
+
+testdv1.fun01()
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.1.ddl.aql
new file mode 100644
index 0000000..e44d592
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Decription   : Create UDF to query two different datasets that are in tow different dataverses.
+ * Expected Res : Success
+ * Date         : Sep 7 2012
+ */
+
+// this test currently gives ParseException
+
+drop dataverse test if exists;
+drop dataverse fest if exists;
+
+create dataverse test;
+create dataverse fest;
+
+create type test.testtype as open {
+id : int32
+}
+
+create type fest.testtype as open {
+id : int32
+}
+
+create dataset test.t1(testtype) primary key id;
+create dataset fest.t1(testtype) primary key id;
+
+create function fest.f1(){
+for $m in dataset('test.t1')
+for $l in dataset('fest.t1')
+order by $m,$l
+return { "l":$l,"m":$m }
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.2.update.aql
new file mode 100644
index 0000000..a927cf3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.2.update.aql
@@ -0,0 +1,20 @@
+/*
+ * Decription   : Create UDF to query two different datasets that are in tow different dataverses.
+ * Expected Res : Success
+ * Date         : Sep 7 2012
+ */
+
+// this test currently gives ParseException
+
+insert into dataset test.t1({"id":24});
+insert into dataset test.t1({"id":23});
+insert into dataset test.t1({"id":21});
+insert into dataset test.t1({"id":44});
+insert into dataset test.t1({"id":64});
+
+insert into dataset fest.t1({"id":24});
+insert into dataset fest.t1({"id":23});
+insert into dataset fest.t1({"id":21});
+insert into dataset fest.t1({"id":44});
+insert into dataset fest.t1({"id":64});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.3.query.aql
new file mode 100644
index 0000000..0a8c59f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv17/cross-dv17.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Decription   : Create UDF to query two different datasets that are in tow different dataverses.
+ * Expected Res : Success
+ * Date         : Sep 7 2012
+ */
+
+// this test currently gives ParseException
+
+use dataverse fest;
+
+fest.f1();
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.1.ddl.aql
new file mode 100644
index 0000000..b2a5b54
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+ * Description  : Create two dataverses and one dataset in each of the dataverse
+ *              : insert data and query using the datasets using fully qualified names and return results.
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ * Ignored      : Not part of the current test build because of Issue 199
+ */
+
+
+drop dataverse test if exists;
+drop dataverse fest if exists;
+
+create dataverse test;
+create dataverse fest;
+
+create type test.testtype as open {
+id : int32
+}
+
+create type fest.testtype as open {
+id : int32
+}
+
+create dataset test.t1(testtype) primary key id;
+create dataset fest.t1(testtype) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.2.update.aql
new file mode 100644
index 0000000..c916222
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.2.update.aql
@@ -0,0 +1,21 @@
+/*
+ * Description  : Create two dataverses and one dataset in each of the dataverse
+ *              : insert data and query using the datasets using fully qualified names and return results.
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ * Ignored      : Not part of the current test build because of Issue 199
+ */
+
+
+insert into dataset test.t1({"id":24});
+insert into dataset test.t1({"id":23});
+insert into dataset test.t1({"id":21});
+insert into dataset test.t1({"id":44});
+insert into dataset test.t1({"id":64});
+
+insert into dataset fest.t1({"id":24});
+insert into dataset fest.t1({"id":23});
+insert into dataset fest.t1({"id":21});
+insert into dataset fest.t1({"id":44});
+insert into dataset fest.t1({"id":64});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.3.query.aql
new file mode 100644
index 0000000..fe801df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv18/cross-dv18.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create two dataverses and one dataset in each of the dataverse
+ *              : insert data and query using the datasets using fully qualified names and return results.
+ * Expected Res : Success
+ * Date         : Sep 7th 2012
+ * Ignored      : Not part of the current test build because of Issue 199
+ */
+
+
+let $a := (for $l in dataset('fest.t1') return $l)
+let $b := (for $m in dataset('test.t1') return $m)
+return {"a":$a,"b":$b}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.1.ddl.aql
new file mode 100644
index 0000000..55168bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.1.ddl.aql
@@ -0,0 +1,49 @@
+/*
+ * Description  : Create internal and external datasets in more than one dataverse and query metadata to verify entries in Metadata.
+ * Expected Res : Success
+ * Date         : Sep 20 2012
+ */
+
+drop dataverse test1 if exists;
+drop dataverse test2 if exists;
+create dataverse test1;
+create dataverse test2;
+
+create type test1.testtype as open {
+id : int32,
+name : string,
+loc: point,
+time: datetime
+}
+
+create type test2.testtype as open {
+id : int32,
+name : string?,
+loc: point,
+time: datetime
+}
+
+create type test1.Tweet as open {
+  id: int32,
+  tweetid: int64,
+  loc: point,
+  time: datetime,
+  text: string
+}
+
+create dataset test1.t1(testtype) primary key id;
+
+create dataset test2.t2(testtype) primary key id;
+
+create dataset test2.t3(testtype) primary key id;
+
+create dataset test1.t2(testtype) primary key id;
+
+create dataset test1.t3(testtype) primary key id;
+
+create dataset test2.t4(testtype) primary key id;
+
+create external dataset test1.TwitterData(Tweet)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.2.update.aql
new file mode 100644
index 0000000..c0205a8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create internal and external datasets in more than one dataverse and query metadata to verify entries in Metadata.
+ * Expected Res : Success
+ * Date         : Sep 20 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.3.query.aql
new file mode 100644
index 0000000..e7e4f41
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv19/cross-dv19.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create internal and external datasets in more than one dataverse and query metadata to verify entries in Metadata.
+ * Expected Res : Success
+ * Date         : Sep 20 2012
+ */
+
+for $l in dataset('Metadata.Dataset')
+where $l.DataverseName='test1' or $l.DataverseName='test2' or $l.DataverseName='TwitterData'
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.1.ddl.aql
new file mode 100644
index 0000000..02cf244
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.1.ddl.aql
@@ -0,0 +1,35 @@
+/*
+ * Description  : Test various syntax for dataset access
+ *              : Using parentheses for dataset access is now optional
+ *              : New syntax can use fully qualified names to access datasets.
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse student if exists;
+drop dataverse teacher if exists;
+
+create dataverse student;
+create dataverse teacher;
+
+create type student.stdType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create type teacher.tchrType as open {
+id : int32,
+name : string,
+age : int32,
+sex : string,
+dept : string
+}
+
+create dataset student.ugdstd(stdType) primary key id;
+create dataset student.gdstd(stdType) primary key id;
+create dataset teacher.prof(tchrType) primary key id;
+create dataset teacher.pstdoc(tchrType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.2.update.aql
new file mode 100644
index 0000000..9236626
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.2.update.aql
@@ -0,0 +1,8 @@
+insert into dataset student.ugdstd({"id":457,"name":"John Doe","age":22,"sex":"M","dept":"Dance"});
+
+insert into dataset student.gdstd({"id":418,"name":"John Smith","age":26,"sex":"M","dept":"Economics"});
+
+insert into dataset teacher.prof({"id":152,"name":"John Meyer","age":42,"sex":"M","dept":"History"});
+
+insert into dataset teacher.pstdoc({"id":259,"name":"Sophia Reece","age":36,"sex":"F","dept":"Anthropology"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.3.query.aql
new file mode 100644
index 0000000..f8933d6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/cross-dv20/cross-dv20.3.query.aql
@@ -0,0 +1,5 @@
+for $s in dataset student.ugdstd
+for $p in dataset('teacher.prof')
+for $a in dataset("student.gdstd")
+for $b in dataset teacher.pstdoc
+return {"ug-student":$s,"prof":$p,"grd-student":$a,"postdoc":$b}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.1.ddl.aql
new file mode 100644
index 0000000..716f6a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type test.AddressType as open {
+  number: int32,
+  street: string,
+  city: string
+};
+
+create type test.CustomerType as closed {
+  cid: int32,
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+};
+
+create dataset test.Customers(CustomerType) primary key cid;
+
+drop dataset test.Customers;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.3.query.aql
new file mode 100644
index 0000000..9f761a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/drop_dataset/drop_dataset.3.query.aql
@@ -0,0 +1,3 @@
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test' and $x.DatasetName='Customers'
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.ddl.aql
new file mode 100644
index 0000000..baf7f67
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.ddl.aql
@@ -0,0 +1,47 @@
+//***** Test to read from a dataset and insert into another dataset when the datasets belong to different dataverses*****//
+drop dataverse test1 if exists;
+drop dataverse test2 if exists;
+
+create dataverse test1;
+create dataverse test2;
+
+create type test1.AddressType as open {
+  number: int32,
+  street: string,
+  city: string
+};
+
+create type test1.CustomerType as closed {
+  cid: int32,
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+};
+
+create type test2.AddressType as open {
+  number: int32,
+  street: string,
+  city: string
+};
+
+create type test2.CustomerType as closed {
+  cid: int32,
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+};
+
+create dataset test1.Customers(CustomerType) primary key cid;
+
+create dataset test2.Customers(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.2.update.aql
new file mode 100644
index 0000000..54c65d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.2.update.aql
@@ -0,0 +1,11 @@
+//***** Test to read from a dataset and insert into another dataset when the datasets belong to different dataverses*****//
+
+load dataset test1.Customers
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+
+insert into dataset test2.Customers(
+for $x in dataset('test1.Customers')
+return $x
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.3.query.aql
new file mode 100644
index 0000000..89a5f00
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_across_dataverses/insert_across_dataverses.3.query.aql
@@ -0,0 +1,8 @@
+//***** Test to read from a dataset and insert into another dataset when the datasets belong to different dataverses*****//
+
+use dataverse test2;
+
+for $c in dataset('test2.Customers')
+order by $c.cid
+return $c
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.ddl.aql
new file mode 100644
index 0000000..9cdce99
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : Use fully qualified dataset names to insert into target dataset by doing a select on source dataset.
+ * Expected Res : Success
+ * Date         : Sep 19 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type test.testtype as open {
+id : int32,
+name : string
+}
+
+create dataset test.t1(testtype) primary key id;
+
+create dataset test.t2(testtype) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.2.update.aql
new file mode 100644
index 0000000..02ec537
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.2.update.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Use fully qualified dataset names to insert into target dataset by doing a select on source dataset.
+ * Expected Res : Success
+ * Date         : Sep 19 2012
+ */
+
+
+insert into dataset test.t1({"id":456,"name":"Roger"});
+insert into dataset test.t1({"id":351,"name":"Bob"});
+insert into dataset test.t1({"id":257,"name":"Sammy"});
+insert into dataset test.t1({"id":926,"name":"Richard"});
+insert into dataset test.t1({"id":482,"name":"Kevin"});
+
+insert into dataset test.t2({"id":438,"name":"Ravi"});
+insert into dataset test.t2({"id":321,"name":"Bobby"});
+insert into dataset test.t2({"id":219,"name":"Sam"});
+insert into dataset test.t2({"id":851,"name":"Ricardo"});
+insert into dataset test.t2({"id":201,"name":"Kelvin"});
+
+insert into dataset test.t1(for $l in dataset('test.t2') return $l);
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.3.query.aql
new file mode 100644
index 0000000..15cf8f5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Use fully qualified dataset names to insert into target dataset by doing a select on source dataset.
+ * Expected Res : Success
+ * Date         : Sep 19 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('test.t1')
+order by $l.id
+return $l;
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.1.ddl.aql
new file mode 100644
index 0000000..afba395
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.1.ddl.aql
@@ -0,0 +1,43 @@
+//***** Test to conduct a join between datasets belonging to different dataverses*****//
+
+drop dataverse test1 if exists;
+drop dataverse test2 if exists;
+
+create dataverse test1;
+create dataverse test2;
+
+create type test1.AddressType as open {
+  number: int32,
+  street: string,
+  city: string
+};
+
+create type test1.CustomerType as closed {
+  cid: int32,
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+};
+
+create dataset test1.Customers(CustomerType)
+primary key cid;
+
+
+create type test2.OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create dataset test2.Orders(OrderType)
+primary key oid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.2.update.aql
new file mode 100644
index 0000000..a38a397
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.2.update.aql
@@ -0,0 +1,14 @@
+//***** Test to conduct a join between datasets belonging to different dataverses*****//
+
+use dataverse test1;
+use dataverse test2;
+
+load dataset test1.Customers
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),
+("format"="adm"));
+
+load dataset test2.Orders
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.3.query.aql
new file mode 100644
index 0000000..85fbcc7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/join_across_dataverses/join_across_dataverses.3.query.aql
@@ -0,0 +1,11 @@
+//***** Test to conduct a join between datasets belonging to different dataverses*****//
+
+
+use dataverse test1;
+use dataverse test2;
+
+for $c in dataset('test1.Customers')
+for $o in dataset('test2.Orders')
+where $c.cid = $o.cid
+order by $c.name, $o.total
+return {"cust_name":$c.name, "cust_age": $c.age, "order_total":$o.total, "orderList":[$o.oid, $o.cid]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.1.ddl.aql
new file mode 100644
index 0000000..aecf315
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.1.ddl.aql
@@ -0,0 +1 @@
+// no DDLs
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.3.query.aql
new file mode 100644
index 0000000..9da9446
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset/metadata_dataset.3.query.aql
@@ -0,0 +1,6 @@
+//Query metadata dataset
+
+for $c in dataset('Metadata.Dataset')
+where $c.DataverseName='Metadata'
+return $c
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/co.aql b/asterix-app/src/test/resources/runtimets/queries/custord/co.aql
deleted file mode 100644
index ccacb66..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/co.aql
+++ /dev/null
@@ -1,68 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse custord;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create type CustomerOrdersType as open {
-  cid: int32,
-  cust: CustomerType,
-  orders: [OrderType]
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Customers3(CustomerType) 
-  partitioned by key cid on group1;
-create dataset Orders3(OrderType)
-  partitioned by key oid on group1;
-create dataset CustomerOrders3(CustomerOrdersType)
-  partitioned by key cid on group1;
-
-
-write output to nc1:"rttest/custord_co.adm";
-
-/*
-for $co1 in dataset('CustomerOrders3')
-for $o1 in $co1.orders
-return {
-  "order": $o1, 
-  "ordcust": 
-    for $co2 in dataset('CustomerOrders3')
-    where some $o2 in $co2.orders 
-      satisfies $o2.oid = $o1.oid
-    return $co2.cust 
-}
-*/
-
-for $co1 in dataset('CustomerOrders3')
-where some $o1 in $co1.orders
-satisfies $o1.oid = 10
-return $co1
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/co/co.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/co/co.1.ddl.aql
new file mode 100644
index 0000000..f4ab3a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/co/co.1.ddl.aql
@@ -0,0 +1,45 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse custord;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create type CustomerOrdersType as open {
+  cid: int32,
+  cust: CustomerType,
+  orders: [OrderType]
+}
+
+create dataset Customers3(CustomerType) 
+  primary key cid;
+create dataset Orders3(OrderType)
+  primary key oid;
+create dataset CustomerOrders3(CustomerOrdersType)
+  primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/co/co.2.update.aql
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/only.txt
rename to asterix-app/src/test/resources/runtimets/queries/custord/co/co.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/co/co.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/co/co.3.query.aql
new file mode 100644
index 0000000..fad7c09
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/co/co.3.query.aql
@@ -0,0 +1,19 @@
+use dataverse custord;
+
+/*
+for $co1 in dataset('CustomerOrders3')
+for $o1 in $co1.orders
+return {
+  "order": $o1, 
+  "ordcust": 
+    for $co2 in dataset('CustomerOrders3')
+    where some $o2 in $co2.orders 
+      satisfies $o2.oid = $o1.oid
+    return $co2.cust 
+}
+*/
+
+for $co1 in dataset('CustomerOrders3')
+where some $o1 in $co1.orders
+satisfies $o1.oid = 10
+return $co1
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01.aql
deleted file mode 100644
index 83a72ee..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_01.adm";
-      
-for $c in dataset('Customers')
-return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.3.query.aql
new file mode 100644
index 0000000..f6d9bb5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_01/customer_q_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02.aql
deleted file mode 100644
index bb24a68..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02.aql
+++ /dev/null
@@ -1,33 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_02.adm";
-      
-for $c in dataset('Customers')
-let $nestedRec := $c.lastorder
-return { "id": $c.cid, "nestedRecord":$nestedRec, "order_id" : $nestedRec.oid}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.3.query.aql
new file mode 100644
index 0000000..7e8fd19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_02/customer_q_02.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+let $nestedRec := $c.lastorder
+return { "id": $c.cid, "nestedRecord":$nestedRec, "order_id" : $nestedRec.oid}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03.aql
deleted file mode 100644
index 32fed3b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03.aql
+++ /dev/null
@@ -1,38 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_03.adm";
-      
-for $c in dataset('Customers')
-let $nestedRec := $c.lastorder
-let $c1 := [ $c.cid, $nestedRec.oid]
-let $c2 := {{ $c.cid, $nestedRec.oid}}
-let $c3 := [ $c.lastorder, $nestedRec]
-let $c4 := {{ $c.lastorder, $nestedRec}}
-where $c.cid >= int32("3") 
-return { "id": $c.cid, "list1":$c1, "list2":$c2,"list3":$c3,"list4":$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.3.query.aql
new file mode 100644
index 0000000..2f9fbc9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_03/customer_q_03.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+  
+for $c in dataset('Customers')
+let $nestedRec := $c.lastorder
+let $c1 := [ $c.cid, $nestedRec.oid]
+let $c2 := {{ $c.cid, $nestedRec.oid}}
+let $c3 := [ $c.lastorder, $nestedRec]
+let $c4 := {{ $c.lastorder, $nestedRec}}
+where $c.cid >= int32("3") 
+return { "id": $c.cid, "list1":$c1, "list2":$c2,"list3":$c3,"list4":$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04.aql
deleted file mode 100644
index 218cb7b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_04.adm";
-      
-for $c in dataset('Customers')
-let $rec := { "cashBack":$c.cashBack, "cashBack+5": $c.cashBack+5, "cashBack-5": $c.cashBack -5, "cashBack*5": $c.cashBack*5, "cashBack/5": $c.cashBack/ 5, "-cashBack": -$c.cashBack}
-where $c.cid >= int32("3") 
-return { "id": $c.cid, "custname":$c.name, "age" : $c.age, "MathcashBack": $rec }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.3.query.aql
new file mode 100644
index 0000000..1f2dcf4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_04/customer_q_04.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $rec := { "cashBack":$c.cashBack, "cashBack+5": $c.cashBack+5, "cashBack-5": $c.cashBack -5, "cashBack*5": $c.cashBack*5, "cashBack/5": $c.cashBack/ 5, "-cashBack": -$c.cashBack}
+where $c.cid >= int32("3") 
+return { "id": $c.cid, "custname":$c.name, "age" : $c.age, "MathcashBack": $rec }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05.aql
deleted file mode 100644
index 504df0b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05.aql
+++ /dev/null
@@ -1,36 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_05.adm";
-
-  
-for $c in dataset('Customers')
-let $rec := { "age":$c.age, "age+5": $c.age+5, "age-5": $c.age -5, "age*5": $c.age*5, "age/5": $c.age/ 5, "-age": -$c.age}
-where $c.cid >= int32("3") 
-return { "custname":$c.name, "age" : $c.age,  "MathAge": $rec }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.3.query.aql
new file mode 100644
index 0000000..f5f48fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_05/customer_q_05.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+  
+for $c in dataset('Customers')
+let $rec := { "age":$c.age, "age+5": $c.age+5, "age-5": $c.age -5, "age*5": $c.age*5, "age/5": $c.age/ 5, "-age": -$c.age}
+where $c.cid >= int32("3") 
+return { "custname":$c.name, "age" : $c.age,  "MathAge": $rec }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06.aql
deleted file mode 100644
index 0738dfe..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06.aql
+++ /dev/null
@@ -1,35 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_06.adm";
-      
-for $c in dataset('Customers')
-let $rec := $c.lastorder
-let $m := [$c.cid, $rec.oid]
-let $n := [$m[?], $m[1], $m[4]]
-return { "customerid": $c.name, "orderedlist": $n}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.3.query.aql
new file mode 100644
index 0000000..57fa0c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_06/customer_q_06.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $rec := $c.lastorder
+let $m := [$c.cid, $rec.oid]
+let $n := [$m[?], $m[1], $m[4]]
+return { "customerid": $c.name, "orderedlist": $n}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07.aql
deleted file mode 100644
index cdcdd82..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07.aql
+++ /dev/null
@@ -1,36 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_07.adm";
-      
-for $c in dataset('Customers')
-let $rec := $c.lastorder
-let $m := [$c.cid, $rec.oid]
-let $n := {{$m[?], $m[1], $m[4]}}
-return { "customerid": $c.name, "unorderedlist": $n}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.1.ddl.aql
new file mode 100644
index 0000000..cae4772
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.1.ddl.aql
@@ -0,0 +1,28 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.3.query.aql
new file mode 100644
index 0000000..6c965fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_07/customer_q_07.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+let $rec := $c.lastorder
+let $m := [$c.cid, $rec.oid]
+let $n := {{$m[?], $m[1], $m[4]}}
+return { "customerid": $c.name, "unorderedlist": $n}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08.aql
deleted file mode 100644
index baf2951..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08.aql
+++ /dev/null
@@ -1,35 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_customer_q_08.adm";
-      
-for $c in dataset('Customers')
-where $c.age < 15
-return { "custname":$c.name, "custage": $c.age }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.1.ddl.aql
new file mode 100644
index 0000000..d40a52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.3.query.aql
new file mode 100644
index 0000000..4be5071
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/customer_q_08/customer_q_08.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+where $c.age < 15
+return { "custname":$c.name, "custage": $c.age }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01.aql
deleted file mode 100644
index e951abc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01.aql
+++ /dev/null
@@ -1,71 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create type CustomerOrdersType as open {
-  cid: int32,
-  cust: CustomerType,
-  orders: [OrderType]
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Customers1(CustomerType) 
-  partitioned by key cid on group1;
-create dataset Orders1(OrderType)
-  partitioned by key oid on group1;
-create dataset CustomerOrders1(CustomerOrdersType)
-  partitioned by key cid on group1;
-
-load dataset Customers1 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
-
-load dataset Orders1 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
-
-
-// write output to nc1:"rttest/denorm-cust-order_01.adm";
-
-
-write into dataset CustomerOrders1 (
-
-for $c in dataset('Customers1')
-for $o in dataset('Orders1')
-where $c.cid = $o.cid and $c.age < 21 and $c.total > 50.0
-group by $cid := $c.cid decor $cust := $c with $o
-return {"cid":$cid, "cust": $cust, "orders": $o} 
-
-);
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.1.ddl.aql
new file mode 100644
index 0000000..197b7f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.1.ddl.aql
@@ -0,0 +1,45 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create type CustomerOrdersType as open {
+  cid: int32,
+  cust: CustomerType,
+  orders: [OrderType]
+}
+
+create dataset Customers1(CustomerType) 
+  primary key cid;
+create dataset Orders1(OrderType)
+  primary key oid;
+create dataset CustomerOrders1(CustomerOrdersType)
+  primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.2.update.aql
new file mode 100644
index 0000000..5ebc4ea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset Customers1 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
+
+load dataset Orders1 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.3.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.3.update.aql
new file mode 100644
index 0000000..6dfff7a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_01/denorm-cust-order_01.3.update.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+write into dataset CustomerOrders1 (
+
+for $c in dataset('Customers1')
+for $o in dataset('Orders1')
+where $c.cid = $o.cid and $c.age < 21 and $c.total > 50.0
+group by $cid := $c.cid decor $cust := $c with $o
+return {"cid":$cid, "cust": $cust, "orders": $o} 
+
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02.aql
deleted file mode 100644
index 39815d7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02.aql
+++ /dev/null
@@ -1,76 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create type CustomerOrdersType as open {
-  cid: int32,
-  cust: CustomerType,
-  orders: [OrderType]
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Customers2(CustomerType) 
-  partitioned by key cid on group1;
-create dataset Orders2(OrderType)
-  partitioned by key oid on group1;
-create dataset CustomerOrders2(CustomerOrdersType)
-  partitioned by key cid on group1;
-
-load dataset Customers2 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
-
-load dataset Orders2 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
-
-
-write into dataset CustomerOrders2 (
-
-for $c in dataset('Customers2')
-let $orders := 
-  for $o in dataset('Orders2')
-  where $o.cid = $c.cid
-  order by $o.oid asc
-  return $o
-return { "cid": $c.cid, "cust": $c, "orders": $orders }
-
-);
-
-write output to nc1:"rttest/custord_denorm-cust-order_02.adm";
-
-for $co in dataset('CustomerOrders2')
-order by $co.cid
-return $co
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.1.ddl.aql
new file mode 100644
index 0000000..eae0d26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.1.ddl.aql
@@ -0,0 +1,45 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create type CustomerOrdersType as open {
+  cid: int32,
+  cust: CustomerType,
+  orders: [OrderType]
+}
+
+create dataset Customers2(CustomerType) 
+  primary key cid;
+create dataset Orders2(OrderType)
+  primary key oid;
+create dataset CustomerOrders2(CustomerOrdersType)
+  primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.2.update.aql
new file mode 100644
index 0000000..fdbfa62
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.2.update.aql
@@ -0,0 +1,21 @@
+use dataverse test;
+
+load dataset Customers2 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
+
+load dataset Orders2 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
+
+write into dataset CustomerOrders2 (
+
+for $c in dataset('Customers2')
+let $orders := 
+  for $o in dataset('Orders2')
+  where $o.cid = $c.cid
+  order by $o.oid asc
+  return $o
+return { "cid": $c.cid, "cust": $c, "orders": $orders }
+
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.3.query.aql
new file mode 100644
index 0000000..3b1e1a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_02/denorm-cust-order_02.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $co in dataset('CustomerOrders2')
+order by $co.cid
+return $co
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03.aql
deleted file mode 100644
index 978bedf..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03.aql
+++ /dev/null
@@ -1,82 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create type CustomerOrdersType as open {
-  cid: int32,
-  cust: CustomerType,
-  orders: [OrderType]
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Customers3(CustomerType) 
-  partitioned by key cid on group1;
-create dataset Orders3(OrderType)
-  partitioned by key oid on group1;
-create dataset CustomerOrders3(CustomerOrdersType)
-  partitioned by key cid on group1;
-
-load dataset Customers3 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
-
-load dataset Orders3 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
-
-
-write into dataset CustomerOrders3 (
-
-for $c in dataset('Customers3')
-let $orders := 
-  for $o in dataset('Orders3')
-  where $o.cid = $c.cid
-  order by $o.orderpriority desc
-  return $o
-return { "cid": $c.cid, "cust": $c, "orders": $orders }
-
-);
-
-write output to nc1:"rttest/custord_denorm-cust-order_03.adm";
-
-for $co1 in dataset('CustomerOrders3')
-for $o1 in $co1.orders
-return {
-  "order": $o1, 
-  "ordcust": 
-    for $co2 in dataset('CustomerOrders3')
-    where some $o2 in $co2.orders 
-      satisfies $o2.oid = $o1.oid
-    return $co2.cust 
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.1.ddl.aql
new file mode 100644
index 0000000..4530250
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.1.ddl.aql
@@ -0,0 +1,45 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create type CustomerOrdersType as open {
+  cid: int32,
+  cust: CustomerType,
+  orders: [OrderType]
+}
+
+create dataset Customers3(CustomerType) 
+  primary key cid;
+create dataset Orders3(OrderType)
+  primary key oid;
+create dataset CustomerOrders3(CustomerOrdersType)
+  primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.2.update.aql
new file mode 100644
index 0000000..f19ba50
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset Customers3 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
+
+load dataset Orders3 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.3.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.3.update.aql
new file mode 100644
index 0000000..6ddccc4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.3.update.aql
@@ -0,0 +1,14 @@
+use dataverse test;
+
+write into dataset CustomerOrders3 (
+
+for $c in dataset('Customers3')
+let $orders := 
+  for $o in dataset('Orders3')
+  where $o.cid = $c.cid
+  order by $o.orderpriority desc
+  return $o
+return { "cid": $c.cid, "cust": $c, "orders": $orders }
+
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.4.query.aql
new file mode 100644
index 0000000..1bdfa7f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/denorm-cust-order_03/denorm-cust-order_03.4.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+for $co1 in dataset('CustomerOrders3')
+for $o1 in $co1.orders
+return {
+  "order": $o1, 
+  "ordcust": 
+    for $co2 in dataset('CustomerOrders3')
+    where some $o2 in $co2.orders 
+      satisfies $o2.oid = $o1.oid
+    return $co2.cust 
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk.aql b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk.aql
deleted file mode 100644
index d6eb4c4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk.aql
+++ /dev/null
@@ -1,49 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerOrderType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  orders: [OrderType]
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset CustomerOrders(CustomerOrderType) 
-  partitioned by key cid on group1;
-
-
-load dataset CustomerOrders
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/custorder-tiny.adm"),("format"="adm")) pre-sorted;
-
-
-write output to nc1:"rttest/custord_freq_clark.adm";
-
-for $c in dataset('CustomerOrders')
-for $o in $c.orders
-group by $clerk := $o.clerk with $o
-let $count := count($o)
-order by $count, $clerk desc
-return { "clerk": $clerk, "ordercount": $count }
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.1.ddl.aql
new file mode 100644
index 0000000..07ce2ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.1.ddl.aql
@@ -0,0 +1,32 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerOrderType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  orders: [OrderType]
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create dataset CustomerOrders(CustomerOrderType) 
+  primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.2.update.aql
new file mode 100644
index 0000000..073bca9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset CustomerOrders
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/custorder-tiny.adm"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.3.query.aql
new file mode 100644
index 0000000..9060ff4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/freq-clerk/freq-clerk.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+for $c in dataset('CustomerOrders')
+for $o in $c.orders
+group by $clerk := $o.clerk with $o
+let $count := count($o)
+order by $count, $clerk desc
+return { "clerk": $clerk, "ordercount": $count }
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01.aql
deleted file mode 100644
index 2a6a37b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01.aql
+++ /dev/null
@@ -1,52 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
- 
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-
-write output to nc1:"rttest/custord_join_q_01.adm";
-      
-for $c in dataset('Customers')
-for $o in dataset('Orders')
-where $c.cid = $o.cid 
-order by $c.name, $o.total
-return {"cust_name":$c.name, "cust_age": $c.age, "order_total":$o.total, "orderList":[$o.oid, $o.cid], "orderList":{{$o.oid, $o.cid}}} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.1.ddl.aql
new file mode 100644
index 0000000..a7a7b77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.1.ddl.aql
@@ -0,0 +1,41 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+        
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.3.query.aql
new file mode 100644
index 0000000..4f2dacf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_01/join_q_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+where $c.cid = $o.cid 
+order by $c.name, $o.total
+return {"cust_name":$c.name, "cust_age": $c.age, "order_total":$o.total, "orderList":[$o.oid, $o.cid]} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02.aql
deleted file mode 100644
index 7b0cb5f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02.aql
+++ /dev/null
@@ -1,54 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
- 
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-
-write output to nc1:"rttest/custord_join_q_02.adm";
-      
-for $c in dataset('Customers')
-for $o in dataset('Orders')
-let $rec := $c.lastorder
-let $ol := [$o.oid, $rec.oid, $o.cid]
-let $ul := {{$o.oid, $rec.oid, $o.cid}}
-where $c.cid = $o.cid
-order by $c.name, $o.total
-return {"cust_name":$c.name, "order_total": $o.total, "orderedlist": $ol, "unorderedlist": $ul  } 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.1.ddl.aql
new file mode 100644
index 0000000..a7a7b77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.1.ddl.aql
@@ -0,0 +1,41 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+        
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.3.query.aql
new file mode 100644
index 0000000..45bc2be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_02/join_q_02.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+      
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+let $rec := $c.lastorder
+let $ol := [$o.oid, $rec.oid, $o.cid]
+let $ul := {{$o.oid, $rec.oid, $o.cid}}
+where $c.cid = $o.cid
+order by $c.name, $o.total
+return {"cust_name":$c.name, "order_total": $o.total, "orderedlist": $ol, "unorderedlist": $ul  } 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03.aql
deleted file mode 100644
index 002bdff..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03.aql
+++ /dev/null
@@ -1,54 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
- 
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-
-write output to nc1:"rttest/custord_join_q_03.adm";
-      
-
-for $c in dataset('Customers')
-for $o in dataset('Orders')
-let $rec := $c.lastorder
-let $ol := [$o.oid, $rec.oid, $o.cid]
-let $ul := {{$o.oid, $rec.oid, $o.cid}}
-where $c.cid = $o.cid
-order by $c.name, $o.total
-return {"cust_name":$c.name, "order_total": $o.total, "orderedlist": $ol, "unorderedlist": $ul, "ol_item1": $ol[0], "ol_item2": $ol[1], "ol_item5": $ol[4], "ul_item1": $ul[?]} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.1.ddl.aql
new file mode 100644
index 0000000..40f94fa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.1.ddl.aql
@@ -0,0 +1,42 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+        
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.3.query.aql
new file mode 100644
index 0000000..c96be23
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_03/join_q_03.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+let $rec := $c.lastorder
+let $ol := [$o.oid, $rec.oid, $o.cid]
+let $ul := {{$o.oid, $rec.oid, $o.cid}}
+where $c.cid = $o.cid
+order by $c.name, $o.total
+return {"cust_name":$c.name, "order_total": $o.total, "orderedlist": $ol, "unorderedlist": $ul, "ol_item1": $ol[0], "ol_item2": $ol[1], "ol_item5": $ol[4], "ul_item1": $ul[?]} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04.aql
deleted file mode 100644
index b424796..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04.aql
+++ /dev/null
@@ -1,51 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  cashBack: int32,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
- 
-create external dataset Customers(CustomerType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
-        
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-
-write output to nc1:"rttest/custord_join_q_04.adm";
-      
-
-for $c in dataset('Customers')
-return {"order_id" :
-for $o in dataset('Orders')
-where $c.cid = $o.cid
-return $o.oid } 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.1.ddl.aql
new file mode 100644
index 0000000..2fbbf2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.1.ddl.aql
@@ -0,0 +1,42 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+ 
+create external dataset Customers(CustomerType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+        
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.3.query.aql
new file mode 100644
index 0000000..9996053
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/join_q_04/join_q_04.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+return {"order_id" :
+for $o in dataset('Orders')
+where $c.cid = $o.cid
+return $o.oid } 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/load-test.aql b/asterix-app/src/test/resources/runtimets/queries/custord/load-test.aql
deleted file mode 100644
index ae2d750..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/load-test.aql
+++ /dev/null
@@ -1,56 +0,0 @@
-drop dataverse test if exists;
-drop nodegroup group0 if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create nodegroup group0 if not exists on nc1;
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset c1(CustomerType) 
-  partitioned by key cid on group0;
-create dataset c2(CustomerType) 
-  partitioned by key cid on group1;  
-  
-load dataset c1 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
-
-
-write into dataset c2 (
-
-  for $c in dataset('c1')
-  return $c 
-
-);
-
-
-write output to nc1:"rttest/custord_load-test.adm";
-
-for $c in dataset('c2')
-order by $c.cid
-return $c
-
-
-
-// write output to nc1:"rttest/denorm-cust-order_01.adm";
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.1.ddl.aql
new file mode 100644
index 0000000..c0f97c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.1.ddl.aql
@@ -0,0 +1,28 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create dataset c1(CustomerType) 
+  primary key cid;
+create dataset c2(CustomerType) 
+  primary key cid;  
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.2.update.aql
new file mode 100644
index 0000000..a395f03
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+  
+load dataset c1 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.3.update.aql b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.3.update.aql
new file mode 100644
index 0000000..11761d6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.3.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+write into dataset c2 (
+
+  for $c in dataset('c1')
+  return $c 
+
+);
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.4.query.aql
new file mode 100644
index 0000000..109195e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/load-test/load-test.4.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $c in dataset('c2')
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01.aql
deleted file mode 100644
index 36e6830..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_order_q_01.adm";
-      
-for $c in dataset('Orders')
-return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.3.query.aql
new file mode 100644
index 0000000..4b9c081
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_01/order_q_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+     
+for $c in dataset('Orders')
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02.aql
deleted file mode 100644
index a16eab6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02.aql
+++ /dev/null
@@ -1,30 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-
-write output to nc1:"rttest/custord_order_q_02.adm";
-      
-for $o in dataset('Orders')
-let $c1 := [ $o.orderstatus, $o.clerk]
-let $c2 := {{ $o.orderstatus, $o.clerk}}
-let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-return { "id": $o.cid, "list1":$c1, "list2":$c2,"list3":$c3,"list4":$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.3.query.aql
new file mode 100644
index 0000000..cb793b5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_02/order_q_02.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $o in dataset('Orders')
+let $c1 := [ $o.orderstatus, $o.clerk]
+let $c2 := {{ $o.orderstatus, $o.clerk}}
+let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+return { "id": $o.cid, "list1":$c1, "list2":$c2,"list3":$c3,"list4":$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03.aql
deleted file mode 100644
index b930a10..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03.aql
+++ /dev/null
@@ -1,29 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_order_q_03.adm";
-      
-for $o in dataset('Orders')
-let $c1 := [ $o.orderstatus, $o.clerk]
-let $c2 := {{ $o.orderstatus, $o.clerk}}
-let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-return { "orderid": $o.oid, "ordertot":$o.total, "list": $c1, "item1": $c1[0], "item1": $c1[?], "item2": $c1[1], "item3": $c1[2]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.3.query.aql
new file mode 100644
index 0000000..e098c34
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_03/order_q_03.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+      
+for $o in dataset('Orders')
+let $c1 := [ $o.orderstatus, $o.clerk]
+let $c2 := {{ $o.orderstatus, $o.clerk}}
+let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+return { "orderid": $o.oid, "ordertot":$o.total, "list": $c1, "item1": $c1[0], "item2": $c1[1], "item3": $c1[2]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04.aql
deleted file mode 100644
index c9b22d8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04.aql
+++ /dev/null
@@ -1,30 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_order_q_04.adm";
-      
-for $o in dataset('Orders')
-let $c1 := [ $o.orderstatus, $o.clerk]
-let $c2 := {{ $o.orderstatus, $o.clerk}}
-let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
-return { "orderid": $o.oid, "ordertot":$o.total, "list": $c3, "item1": $c3[0], "item1": $c3[?], "item2": $c3[1], "item5": $c3[5], "item10": $c3[10]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.3.query.aql
new file mode 100644
index 0000000..302864a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_04/order_q_04.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+ 
+for $o in dataset('Orders')
+let $c1 := [ $o.orderstatus, $o.clerk]
+let $c2 := {{ $o.orderstatus, $o.clerk}}
+let $c3 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+let $c4 := [$o.heList, $o.openlist, $o.loc, $o.line, $o.poly, $o.lastorder]
+return { "orderid": $o.oid, "ordertot":$o.total, "list": $c3, "item1": $c3[0], "item2": $c3[1], "item5": $c3[5], "item10": $c3[10]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05.aql
deleted file mode 100644
index 5693312..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_order_q_05.adm";
-      
-for $o in dataset('Orders')
-let $c1 := []
-let $c2 := {{}}
-return { "orderid": $o.oid, "ordertot":$o.total, "emptyorderedlist": $c1, "emptyunorderedlist": $c2, "olist_item1": $c1[0], "olist_item1": $c1[?], "olist_item5": $c1[4], "ulist_item1": $c2[?]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.3.query.aql
new file mode 100644
index 0000000..eddefbd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_05/order_q_05.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('Orders')
+let $c1 := []
+let $c2 := {{}}
+return { "orderid": $o.oid, "ordertot":$o.total, "emptyorderedlist": $c1, "emptyunorderedlist": $c2, "olist_item1": $c1[0], "olist_item5": $c1[4], "ulist_item1": $c2[?]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06.aql
deleted file mode 100644
index 70c317f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float,
-  items: [int32]
-}
-
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/custord_order_q_06.adm";
-
-for $o in dataset('Orders')
-let $c3 := {{$o.heList, $o.openlist}}
-return { "item1": $c3[?] }
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.1.ddl.aql
new file mode 100644
index 0000000..d67207e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.3.query.aql
new file mode 100644
index 0000000..ae3519d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/custord/order_q_06/order_q_06.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $o in dataset('Orders')
+let $c3 := {{$o.heList, $o.openlist}}
+return { "item1": $c3[?] }
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q1.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q1.aql
deleted file mode 100644
index df75811..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dapd/q1.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as closed {
-  street: string,
-  city: string,
-  zip: string,
-  latlong: point
-}
-
-create type UserType as open {
-  name: string,
-  email: string,
-  interests: {{string}},
-  address: AddressType,
-  member_of: {{
-    {
-      sig_id: int32,
-      chapter_name: string,
-      member_since: date
-    }
-  }}
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create external dataset User(UserType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/events/tiny/user.adm"),("format"="adm"));
-
-write output to nc1:"rttest/dapd_q1.adm";
-
-for $user in dataset('User')
-where some $i in $user.interests
-  satisfies $i = "movies"
-return {"name": $user.name}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.1.ddl.aql
new file mode 100644
index 0000000..574c795
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.1.ddl.aql
@@ -0,0 +1,30 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  street: string,
+  city: string,
+  zip: string,
+  latlong: point
+}
+
+create type UserType as open {
+  name: string,
+  email: string,
+  interests: {{string}},
+  address: AddressType,
+  member_of: {{
+    {
+      sig_id: int32,
+      chapter_name: string,
+      member_since: date
+    }
+  }}
+}
+
+create external dataset User(UserType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/events/tiny/user.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.3.query.aql
new file mode 100644
index 0000000..4d5c9c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q1/q1.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $user in dataset('User')
+where some $i in $user.interests
+  satisfies $i = "movies"
+return {"name": $user.name}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q2.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q2.aql
deleted file mode 100644
index 171fb02..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dapd/q2.aql
+++ /dev/null
@@ -1,56 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type AddressType as closed {
-  street: string,
-  city: string,
-  zip: string,
-  latlong: point
-}
-
-create type EventType as closed {
-  event_id: int32, 
-  name: string,
-  location: AddressType	?,
-  organizers: {{ 
-   {
-     name: string
-   }
-  }},
-  sponsoring_sigs: [
-    {
-      sig_id: int32,
-      chapter_name: string
-    }
-  ],
-  interest_keywords: {{string}},
-  price: double?,
-  start_time: datetime,
-  end_time: datetime
-}
-
-
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create external dataset Event(EventType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/events/tiny/event.adm"),("format"="adm"));
-
-write output to nc1:"rttest/dapd_q2.adm";
-
-for $event in dataset('Event')
-for $sponsor in $event.sponsoring_sigs
-let $es := { "event": $event, "sponsor": $sponsor }
-group by $sig_id := $sponsor.sig_id with $es
-let $sig_sponsorship_count := count($es)
-let $by_chapter :=
-   for $e in $es
-   group by $chapter_name := $e.sponsor.chapter_name with $e
-   return { "chapter_name": $chapter_name, "escount" : count($e) }
-order by $sig_sponsorship_count desc
-limit 5
-return { "sig_id": $sig_id, "total_count": $sig_sponsorship_count, "chapter_breakdown": $by_chapter }
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.1.ddl.aql
new file mode 100644
index 0000000..719161c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.1.ddl.aql
@@ -0,0 +1,37 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  street: string,
+  city: string,
+  zip: string,
+  latlong: point
+}
+
+create type EventType as closed {
+  event_id: int32, 
+  name: string,
+  location: AddressType	?,
+  organizers: {{ 
+   {
+     name: string
+   }
+  }},
+  sponsoring_sigs: [
+    {
+      sig_id: int32,
+      chapter_name: string
+    }
+  ],
+  interest_keywords: {{string}},
+  price: double?,
+  start_time: datetime,
+  end_time: datetime
+}
+
+create external dataset Event(EventType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/events/tiny/event.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.3.query.aql
new file mode 100644
index 0000000..c6117dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q2/q2.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+for $event in dataset('Event')
+for $sponsor in $event.sponsoring_sigs
+let $es := { "event": $event, "sponsor": $sponsor }
+group by $sig_id := $sponsor.sig_id with $es
+let $sig_sponsorship_count := count($es)
+let $by_chapter :=
+   for $e in $es
+   group by $chapter_name := $e.sponsor.chapter_name with $e
+   return { "chapter_name": $chapter_name, "escount" : count($e) }
+order by $sig_sponsorship_count desc
+limit 5
+return { "sig_id": $sig_id, "total_count": $sig_sponsorship_count, "chapter_breakdown": $by_chapter }
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q3.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q3.aql
deleted file mode 100644
index 9c871b2..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dapd/q3.aql
+++ /dev/null
@@ -1,51 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as closed {
- street: string,
- city: string,
- zip: string,
- latlong: point2d
-}
-
-create type UserType as open{
- name: string,
- interests: {{string}},
- address: AddressType,
- member_of: {{
-  {
-    sig_id: int32,
-    chapter_name: string,
-    member_since: date
-  }
-}}
-}
-
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset User(UserType)
- partitioned by key name on group1;
-
-load dataset User 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/events/tiny/user.adm"),("format"="json")) pre-sorted;
-
-
-write output to nc1:'rttest/dapd_q3.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('User')
-let $similar_users :=
-  for $similar_user in dataset('User')
-  where $user.name != $similar_user.name
-       and $user.interests ~= $similar_user.interests
-  let $sim := similarity-jaccard($user.interests, $similar_user.interests)
-  order by $sim desc
-  limit 10
-  return { "user_name": $similar_user.name }
-order by $user.name  
-return { "user_name" : $user.name, "similar_users" : $similar_users }
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.1.ddl.aql
new file mode 100644
index 0000000..9af9a0d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.1.ddl.aql
@@ -0,0 +1,26 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+ street: string,
+ city: string,
+ zip: string,
+ latlong: point2d
+}
+
+create type UserType as open{
+ name: string,
+ interests: {{string}},
+ address: AddressType,
+ member_of: {{
+  {
+    sig_id: int32,
+    chapter_name: string,
+    member_since: date
+  }
+}}
+}
+
+create dataset User(UserType) primary key name;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.2.update.aql
new file mode 100644
index 0000000..7bad91f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset User 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/events/tiny/user.adm"),("format"="json")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.3.query.aql
new file mode 100644
index 0000000..d2a7776
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dapd/q3/q3.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+set simthreshold '.5f';
+
+for $user in dataset('User')
+let $similar_users :=
+  for $similar_user in dataset('User')
+  where $user.name != $similar_user.name
+       and $user.interests ~= $similar_user.interests
+  let $sim := similarity-jaccard($user.interests, $similar_user.interests)
+  order by $sim desc
+  limit 10
+  return { "user_name": $similar_user.name }
+order by $user.name  
+return { "user_name" : $user.name, "similar_users" : $similar_users }
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.1.ddl.aql
new file mode 100644
index 0000000..0889497
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.1.ddl.aql
@@ -0,0 +1,36 @@
+/*
+ * Description  : Create and drop and recreate the same closed type, here type has optional fields.
+ *              : verify correctness by querying metadata.
+ * Date         : 11th Feb 2013
+ * Expected Res : Success
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as closed {
+id : int32,
+salary : double ?,
+name : string,
+durtn : duration ?,
+inter : interval,
+dt : date ?,
+tm : time,
+pt : point ?
+}
+
+drop type TestType;
+
+create type TestType as closed {
+id : int32,
+salary : double ?,
+name : string,
+durtn : duration ?,
+inter : interval,
+dt : date ?,
+tm : time,
+pt : point ?
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.3.query.aql
new file mode 100644
index 0000000..284a77a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-cltype/create-drop-cltype.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create and drop and recreate the same closed type, here type has optional fields.
+ *              : verify correctness by querying metadata.
+ * Date         : 11th Feb 2013
+ * Expected Res : Success
+ */
+
+use dataverse test;
+
+for $l in dataset('Metadata.Datatype')
+where $l.DatatypeName = 'TestType'
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.1.ddl.aql
new file mode 100644
index 0000000..e2a2218
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.1.ddl.aql
@@ -0,0 +1,36 @@
+/*
+ * Description  : Create and drop and recreate the same open type, here type has optional fields.
+ *              : verify correctness by querying metadata.
+ * Date         : 11th Feb 2013
+ * Expected Res : Success
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+id : int32,
+salary : double ?,
+name : string,
+durtn : duration ?,
+inter : interval,
+dt : date ?,
+tm : time,
+pt : point ?
+}
+
+drop type TestType;
+
+create type TestType as open {
+id : int32,
+salary : double ?,
+name : string,
+durtn : duration ?,
+inter : interval,
+dt : date ?,
+tm : time,
+pt : point ?
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.3.query.aql
new file mode 100644
index 0000000..b9e4f88
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/create-drop-opntype/create-drop-opntype.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create and drop and recreate the same open type, here type has optional fields.
+ *              : verify correctness by querying metadata.
+ * Date         : 11th Feb 2013
+ * Expected Res : Success
+ */
+
+use dataverse test;
+
+for $l in dataset('Metadata.Datatype')
+where $l.DatatypeName = 'TestType'
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.1.ddl.aql
new file mode 100644
index 0000000..dcf3081
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.2.update.aql
new file mode 100644
index 0000000..169c6dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.3.ddl.aql
new file mode 100644
index 0000000..a3572c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index idx_LineItem_partkey on LineItem(l_linenumber);
+create index idx_LineItem_suppkey on LineItem(l_suppkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.4.update.aql
new file mode 100644
index 0000000..57d42c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.4.update.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+delete $l from dataset LineItem where $l.l_suppkey>=2 or $l.l_linenumber>1;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.5.query.aql
new file mode 100644
index 0000000..69912f9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.5.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+     
+for $c in dataset('LineItem')
+where $c.l_suppkey<150
+order by $c.l_orderkey, $c.l_linenumber
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.1.ddl.aql
new file mode 100644
index 0000000..dcf3081
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.2.update.aql
new file mode 100644
index 0000000..06c0e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.2.update.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+delete $l from dataset LineItem where $l.l_orderkey>=10;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.3.query.aql
new file mode 100644
index 0000000..877796c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+  
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change.aql
new file mode 100644
index 0000000..fb9682d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change.aql
@@ -0,0 +1,43 @@
+/*
+ * Description  : Test variant syntax for delete
+ *              : Ending semi-colon is optional for delete
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+delete $l from dataset LineItem where $l.l_orderkey>=10
+
+write output to nc1:"rttest/dml_delete-syntax-change.adm";      
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.1.ddl.aql
new file mode 100644
index 0000000..dec4e8d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.1.ddl.aql
@@ -0,0 +1,34 @@
+/*
+ * Description  : Test variant syntax for delete
+ *              : Ending semi-colon is optional for delete
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.2.update.aql
new file mode 100644
index 0000000..06c0e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.2.update.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+delete $l from dataset LineItem where $l.l_orderkey>=10;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.3.query.aql
new file mode 100644
index 0000000..d0f4290b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/delete-syntax-change/delete-syntax-change.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+    
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete-with-index.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete-with-index.aql
deleted file mode 100644
index b1ad097..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/delete-with-index.aql
+++ /dev/null
@@ -1,43 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-create index idx_LineItem_partkey on LineItem(l_linenumber);
-create index idx_LineItem_suppkey on LineItem(l_suppkey);
-
-delete $l from dataset LineItem where $l.l_suppkey>=2 or $l.l_linenumber>1;
-
-write output to nc1:"rttest/dml_delete-with-index.adm";      
-for $c in dataset('LineItem')
-where $c.l_suppkey<150
-order by $c.l_orderkey, $c.l_linenumber
-return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/delete.aql b/asterix-app/src/test/resources/runtimets/queries/dml/delete.aql
deleted file mode 100644
index cdd0315..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/delete.aql
+++ /dev/null
@@ -1,40 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-delete $l from dataset LineItem where $l.l_orderkey>=10;
-
-write output to nc1:"rttest/dml_delete.adm";      
-for $c in dataset('LineItem')
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.ddl.aql
new file mode 100644
index 0000000..af8f573
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.ddl.aql
@@ -0,0 +1,33 @@
+/*
+ * Description     : Drop empty secondary index.
+ * Expected Result : Success
+ * Date            : 8th Feb 2013
+ *
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+id : int32,
+name : string,
+locn : point,
+zip : string
+}
+
+create dataset t1(TestType) primary key id;
+
+create index rtree_index_point on t1(locn) type rtree;
+
+create index keyWD_indx on t1(name) type keyword;
+
+create index secndIndx on t1(zip);
+
+drop index t1.rtree_index_point;
+
+drop index t1.keyWD_indx;
+
+drop index t1.secndIndx;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.2.update.aql
new file mode 100644
index 0000000..19dfe4a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description     : Drop empty secondary index.
+ * Expected Result : Success
+ * Date            : 8th Feb 2013
+ *
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.3.query.aql
new file mode 100644
index 0000000..35dc1b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description     : Drop empty secondary index.
+ * Expected Result : Success
+ * Date            : 8th Feb 2013
+ *
+ */
+
+use dataverse test;
+
+for $l in dataset('Metadata.Index')
+where $l.IsPrimary=false
+return $l;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.1.ddl.aql
new file mode 100644
index 0000000..dfbc033
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.1.ddl.aql
@@ -0,0 +1,33 @@
+/*
+ * Description     : Drop secondary index.
+ * Expected Result : Success
+ * Date            : 12th July 2012
+ *
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type Schema as closed {
+unique1:  int32,
+unique2:  int32,
+two:  int32,
+four:  int32,
+ten:  int32,
+twenty:  int32,
+onePercent: int32,
+tenPercent:  int32,
+twentyPercent:  int32,
+fiftyPercent:  int32,
+unique3:  int32,
+evenOnePercent: int32,
+oddOnePercent:  int32,
+stringu1:  string,
+stringu2:  string,
+string4:  string
+}
+
+create dataset t1(Schema) primary key unique2;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.2.update.aql
new file mode 100644
index 0000000..ae67969
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.2.update.aql
@@ -0,0 +1,14 @@
+/*
+ * Description     : Drop secondary index.
+ * Expected Result : Success
+ * Date            : 12th July 2012
+ *
+ */
+
+use dataverse test;
+
+// Load data
+load dataset t1
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/wisc/onektup.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.3.ddl.aql
new file mode 100644
index 0000000..7442100
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.3.ddl.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+// create secondary indexes
+create index idx_t1_str1 on t1(stringu1);
+create index idx_t1_unique1 on t1(unique1);
+
+// drop secondary indexes
+drop index t1.idx_t1_str1;
+drop index t1.idx_t1_unique1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.4.query.aql
new file mode 100644
index 0000000..81119b3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/drop-index/drop-index.4.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description     : Drop secondary index.
+ * Expected Result : Success
+ * Date            : 12th July 2012
+ *
+ */
+
+use dataverse test;
+
+for $a in dataset('t1')
+where $a.unique1 > 10 and $a.stringu1="DGAAAAXXXXXXXXXXXXXXXXXXX"
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.1.ddl.aql
new file mode 100644
index 0000000..356aafb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.1.ddl.aql
@@ -0,0 +1,36 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on secondary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create index part_index on LineItem(l_partkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.2.update.aql
new file mode 100644
index 0000000..821c6a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.2.update.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on secondary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/empty.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.3.query.aql
new file mode 100644
index 0000000..5111256
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load-with-index/empty-load-with-index.3.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on secondary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+limit 1
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.1.ddl.aql
new file mode 100644
index 0000000..54da1a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.1.ddl.aql
@@ -0,0 +1,36 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on primary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create index part_index on LineItem(l_partkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.2.update.aql
new file mode 100644
index 0000000..e9072d1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.2.update.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on primary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/empty.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.3.query.aql
new file mode 100644
index 0000000..bb4cac6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/empty-load/empty-load.3.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : empty-load-with-index.aql
+ * Description     : Check that an empty load doesn't preclude a future non-empty load on primary index 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+limit 1
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.1.ddl.aql
new file mode 100644
index 0000000..0042cdf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset-with-index.aql
+ * Description     : Check that we can insert into an empty dataset and its empty secondary indexes 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
+create index idx_LineID_partkey on LineID(l_linenumber);
+create index idx_LineID_suppkey on LineID(l_suppkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.2.update.aql
new file mode 100644
index 0000000..52752bf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.2.update.aql
@@ -0,0 +1,31 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset-with-index.aql
+ * Description     : Check that we can insert into an empty dataset and its empty secondary indexes 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID (
+let $x:=2
+let $y:=3
+let $z:=4
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.3.query.aql
new file mode 100644
index 0000000..6b0c506
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.3.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset-with-index.aql
+ * Description     : Check that we can insert into an empty dataset and its empty secondary indexes 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+   
+for $c in dataset('LineID')
+where $c.l_suppkey < 100 and $c.l_linenumber<5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.1.ddl.aql
new file mode 100644
index 0000000..3241b68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.1.ddl.aql
@@ -0,0 +1,21 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.2.update.aql
new file mode 100644
index 0000000..08e99af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.2.update.aql
@@ -0,0 +1,31 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID (
+let $x:=2
+let $y:=3
+let $z:=4
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.3.query.aql
new file mode 100644
index 0000000..42b98e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-empty-dataset/insert-into-empty-dataset.3.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : insert-into-empty-dataset.aql
+ * Description     : Check that we can insert into an empty dataset 
+ * Expected Result : Success
+ * Date            : May 2 2012
+ */
+
+use dataverse test;
+
+for $c in dataset('LineID')
+where $c.l_suppkey < 100 and $c.l_linenumber<5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.1.ddl.aql
new file mode 100644
index 0000000..c8d1ee5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.2.update.aql
new file mode 100644
index 0000000..a0cdc06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.3.ddl.aql
new file mode 100644
index 0000000..1eb348a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index idx_LineID_partkey on LineID(l_linenumber);
+create index idx_LineID_suppkey on LineID(l_suppkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.4.update.aql
new file mode 100644
index 0000000..f138dbb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.4.update.aql
@@ -0,0 +1,24 @@
+use dataverse test;
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID (
+let $x:=2
+let $y:=3
+let $z:=4
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.5.query.aql
new file mode 100644
index 0000000..38729c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.5.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+   
+for $c in dataset('LineID')
+where $c.l_suppkey = 3 and $c.l_linenumber=2
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.1.ddl.aql
new file mode 100644
index 0000000..5f645cc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.1.ddl.aql
@@ -0,0 +1,36 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.2.update.aql
new file mode 100644
index 0000000..aa945de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.3.ddl.aql
new file mode 100644
index 0000000..1eb348a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index idx_LineID_partkey on LineID(l_linenumber);
+create index idx_LineID_suppkey on LineID(l_suppkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.4.update.aql
new file mode 100644
index 0000000..a27b4e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.4.update.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+insert into dataset LineID (
+for $l in dataset('LineItem')
+	where $l.l_orderkey<10
+	return {
+		"l_orderkey": $l.l_orderkey,
+		"l_linenumber": $l.l_linenumber,
+		"l_suppkey": $l.l_partkey
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.5.query.aql
new file mode 100644
index 0000000..7db0021
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.5.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('LineID')
+where $c.l_suppkey < 100 and $c.l_linenumber<5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.1.ddl.aql
new file mode 100644
index 0000000..c8d1ee5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.2.update.aql
new file mode 100644
index 0000000..d3b6d75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.2.update.aql
@@ -0,0 +1,28 @@
+use dataverse test;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
+insert into dataset LineID (
+let $x:=2
+let $y:=3
+let $z:=4
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.3.query.aql
new file mode 100644
index 0000000..dab8406
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('LineID')
+where $c.l_suppkey < 100 and $c.l_linenumber<5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.1.ddl.aql
new file mode 100644
index 0000000..5bc8cf2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.1.ddl.aql
@@ -0,0 +1,30 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type Schema as closed {
+unique1:  int32,
+unique2:  int32,
+two:  int32,
+four:  int32,
+ten:  int32,
+twenty:  int32,
+onePercent: int32,
+tenPercent:  int32,
+twentyPercent:  int32,
+fiftyPercent:  int32,
+unique3:  int32,
+evenOnePercent: int32,
+oddOnePercent:  int32,
+stringu1:  string,
+stringu2:  string,
+string4:  string
+}
+
+create dataset onektup(Schema) primary key unique2;
+
+create dataset tenktup1(Schema) primary key unique2;
+
+create dataset tmp(Schema) primary key unique2;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.2.update.aql
new file mode 100644
index 0000000..7054d2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.2.update.aql
@@ -0,0 +1,20 @@
+use dataverse test;
+
+load dataset onektup 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/wisc/onektup.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset tenktup1 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/wisc/tenktup.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset tmp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/wisc/empty.adm"),("format"="adm")) pre-sorted;
+
+insert into dataset tmp(
+for $l in dataset('tenktup1')
+where $l.unique2 > 0 and $l.unique2 < 99
+return $l
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.3.query.aql
new file mode 100644
index 0000000..e25b473
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $t in dataset('tmp')
+order by $t.unique2
+return $t
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.1.ddl.aql
new file mode 100644
index 0000000..b4e44da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.1.ddl.aql
@@ -0,0 +1,24 @@
+/*
+ * Description     : Insert from source dataset into target dataset
+ * Expected Result : Success
+ * Date            : 25th July 2012
+ * Issue #         : Issue 76
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype01 as closed {
+  id: string,
+  name: string?
+}
+
+create type testtype02 as closed {
+  id: string
+}
+
+create dataset testds01(testtype01) primary key id;
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.2.update.aql
new file mode 100644
index 0000000..9a18810
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.2.update.aql
@@ -0,0 +1,21 @@
+/*
+ * Description     : Insert from source dataset into target dataset
+ * Expected Result : Success
+ * Date            : 25th July 2012
+ * Issue #         : Issue 76
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds01 ({ "id": "001" });
+insert into dataset testds01 ({ "id": "002", "name": "John Doe" });
+
+insert into dataset testds02 ({ "id": "003" });
+insert into dataset testds02 ({ "id": "004" });
+insert into dataset testds02 ({ "id": "005" });
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.3.query.aql
new file mode 100644
index 0000000..25483b8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-src-dst-01/insert-src-dst-01.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description     : Insert from source dataset into target dataset
+ * Expected Result : Success
+ * Date            : 25th July 2012
+ * Issue #         : Issue 76
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds01")
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax.aql
new file mode 100644
index 0000000..58177d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax.aql
@@ -0,0 +1,35 @@
+/* 
+ * Test case Name  : insert-syntax-change.aql
+ * Description     : verify various AQL syntax for insert
+ * Expected Result : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype as open {
+  id: int32,
+  name: string
+}
+
+create dataset testds(testtype) primary key id;
+ 
+ insert into dataset testds (
+ { "id": 1, "name": "Person One", "hobbies": {{"Rock", "Metal"}}}
+ );
+ 
+ insert into dataset testds (
+ { "id": 2, "name": "Person Two", "hobbies": {{"Rock", "Jazz"}}}
+ )
+ 
+ insert into dataset testds { "id": 3, "name": "Person Three", "hobbies": {{"Blues"}}};
+ 
+ insert into dataset testds { "id": 4, "name": "Person Four", "hobbies": {{"Metal", "Jazz"}}}
+
+write output to nc1:"rttest/dml_insert-syntax.adm";
+
+for $d in dataset("testds")
+order by $d.id
+return $d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.1.ddl.aql
new file mode 100644
index 0000000..b82fb18
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.1.ddl.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : insert-syntax-change.aql
+ * Description     : verify various AQL syntax for insert
+ * Expected Result : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype as open {
+  id: int32,
+  name: string
+}
+
+create dataset testds(testtype) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.2.update.aql
new file mode 100644
index 0000000..e31332f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.2.update.aql
@@ -0,0 +1,14 @@
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": 1, "name": "Person One", "hobbies": {{"Rock", "Metal"}}}
+);
+
+insert into dataset testds (
+{ "id": 2, "name": "Person Two", "hobbies": {{"Rock", "Jazz"}}}
+)
+
+insert into dataset testds { "id": 3, "name": "Person Three", "hobbies": {{"Blues"}}};
+
+insert into dataset testds { "id": 4, "name": "Person Four", "hobbies": {{"Metal", "Jazz"}}}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.3.query.aql
new file mode 100644
index 0000000..0bee73e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert-syntax/insert-syntax.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse testdv2;
+
+for $d in dataset("testds")
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple-with-index.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple-with-index.aql
deleted file mode 100644
index fcc83d6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple-with-index.aql
+++ /dev/null
@@ -1,52 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-create index idx_LineID_partkey on LineID(l_linenumber);
-create index idx_LineID_suppkey on LineID(l_suppkey);
-
-insert into dataset LineID (
-let $x:=1
-let $y:=2
-let $z:=3
-return {
-	"l_orderkey": $x,
-	"l_partkey": $y,
-	"l_suppkey": $z
-}
-);
-
-insert into dataset LineID (
-let $x:=2
-let $y:=3
-let $z:=4
-return {
-	"l_orderkey": $x,
-	"l_partkey": $y,
-	"l_suppkey": $z
-}
-);
-
-
-write output to nc1:"rttest/dml_insert-tuple-with-index.adm";      
-for $c in dataset('LineID')
-where $c.l_suppkey = 3 and $c.l_linenumber=2
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple.aql
deleted file mode 100644
index 731f7cd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert-tuple.aql
+++ /dev/null
@@ -1,49 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-insert into dataset LineID (
-let $x:=1
-let $y:=2
-let $z:=3
-return {
-	"l_orderkey": $x,
-	"l_partkey": $y,
-	"l_suppkey": $z
-}
-);
-
-insert into dataset LineID (
-let $x:=2
-let $y:=3
-let $z:=4
-return {
-	"l_orderkey": $x,
-	"l_partkey": $y,
-	"l_suppkey": $z
-}
-);
-
-
-write output to nc1:"rttest/dml_insert-tuple.adm";      
-for $c in dataset('LineID')
-where $c.l_suppkey < 100 and $c.l_linenumber<5
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-wisc.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-wisc.aql
deleted file mode 100644
index 4e9e594..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert-wisc.aql
+++ /dev/null
@@ -1,55 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create type Schema as closed {
-unique1:  int32,
-unique2:  int32,
-two:  int32,
-four:  int32,
-ten:  int32,
-twenty:  int32,
-onePercent: int32,
-tenPercent:  int32,
-twentyPercent:  int32,
-fiftyPercent:  int32,
-unique3:  int32,
-evenOnePercent: int32,
-oddOnePercent:  int32,
-stringu1:  string,
-stringu2:  string,
-string4:  string
-}
-
-create dataset onektup(Schema) partitioned by key unique2 on group1;
-
-create dataset tenktup1(Schema) partitioned by key unique2 on group1;
-
-load dataset onektup 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/wisc/onektup.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset tenktup1 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/wisc/tenktup.adm"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-create dataset tmp(Schema) partitioned by key unique2 on group1;
-
-load dataset tmp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/wisc/empty.adm"),("format"="adm")) pre-sorted;
-
-insert into dataset tmp(
-for $l in dataset('tenktup1')
-where $l.unique2 > 0 and $l.unique2 < 99
-return $l
-);
-
-write output to nc1:"rttest/dml_insert-wisc.adm";      
-for $t in dataset('tmp')
-order by $t.unique2
-return $t
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert-with-index.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert-with-index.aql
deleted file mode 100644
index ec30668..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert-with-index.aql
+++ /dev/null
@@ -1,66 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-create index idx_LineID_partkey on LineID(l_linenumber);
-create index idx_LineID_suppkey on LineID(l_suppkey);
-
-insert into dataset LineID (
-for $l in dataset('LineItem')
-	where $l.l_orderkey<10
-	return {
-		"l_orderkey": $l.l_orderkey,
-		"l_partkey": $l.l_linenumber,
-		"l_suppkey": $l.l_partkey
-	}
-);
-
-write output to nc1:"rttest/dml_insert-with-index.adm";      
-for $c in dataset('LineID')
-where $c.l_suppkey < 100 and $c.l_linenumber<5
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert.aql
deleted file mode 100644
index 2123aa8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert.aql
+++ /dev/null
@@ -1,62 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1  if not exists on nc1;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-insert into dataset LineID (
-for $l in dataset('LineItem')
-	where $l.l_orderkey<10
-	return {
-		"l_orderkey": $l.l_orderkey,
-		"l_partkey": $l.l_linenumber,
-		"l_suppkey": $l.l_partkey
-	}
-);
-
-write output to nc1:"rttest/dml_insert.adm";      
-for $c in dataset('LineID')
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.1.ddl.aql
new file mode 100644
index 0000000..5f645cc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.1.ddl.aql
@@ -0,0 +1,36 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.2.update.aql
new file mode 100644
index 0000000..a2702a6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.2.update.aql
@@ -0,0 +1,21 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+
+insert into dataset LineID (
+for $l in dataset('LineItem')
+	where $l.l_orderkey<10
+	return {
+		"l_orderkey": $l.l_orderkey,
+		"l_linenumber": $l.l_linenumber,
+		"l_suppkey": $l.l_partkey
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.3.query.aql
new file mode 100644
index 0000000..ee28306
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert/insert.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+     
+for $c in dataset('LineID')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc.aql
deleted file mode 100644
index 80cb4f5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc.aql
+++ /dev/null
@@ -1,62 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1nc2 if not exists on nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1nc2;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1nc2;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-insert into dataset LineID (
-for $l in dataset('LineItem')
-	where $l.l_orderkey<1000
-	return {
-		"l_orderkey": $l.l_orderkey,
-		"l_partkey": $l.l_linenumber,
-		"l_suppkey": $l.l_partkey
-	}
-);
-
-write output to nc1:"rttest/dml_insert_less_nc.adm";      
-for $c in dataset('LineID')
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.1.ddl.aql
new file mode 100644
index 0000000..5f645cc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.1.ddl.aql
@@ -0,0 +1,36 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.2.update.aql
new file mode 100644
index 0000000..3cdf230
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.2.update.aql
@@ -0,0 +1,20 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+insert into dataset LineID (
+for $l in dataset('LineItem')
+	where $l.l_orderkey<1000
+	return {
+		"l_orderkey": $l.l_orderkey,
+		"l_linenumber": $l.l_linenumber,
+		"l_suppkey": $l.l_partkey
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.3.query.aql
new file mode 100644
index 0000000..ee28306
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/insert_less_nc/insert_less_nc.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+     
+for $c in dataset('LineID')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.1.ddl.aql
new file mode 100644
index 0000000..d2dd520
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.1.ddl.aql
@@ -0,0 +1,26 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.2.update.aql
new file mode 100644
index 0000000..82c420d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.2.update.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter"
+(("hdfs"="hdfs://localhost:10009"),("path"="/tpch/lineitem.tbl"),
+("input-format"="text-input-format"),("format"="delimited-text"),("delimiter"="|"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.3.query.aql
new file mode 100644
index 0000000..d0f4290b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-from-hdfs/load-from-hdfs.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+    
+for $c in dataset('LineItem')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.1.ddl.aql
new file mode 100644
index 0000000..e2cd108
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.1.ddl.aql
@@ -0,0 +1,29 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create index idx_partkey on LineItem(l_partkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.2.update.aql
new file mode 100644
index 0000000..169c6dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.3.query.aql
new file mode 100644
index 0000000..862edf6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/load-with-index/load-with-index.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('LineItem')
+where $c.l_partkey = 100
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.ddl.aql
new file mode 100644
index 0000000..2abca81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.ddl.aql
@@ -0,0 +1,36 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type AddressType as open{
+  street: string,
+  city: string
+}
+create type Dept as open{
+	name: string,
+	id: int32
+}
+
+create type testtype as closed {
+  name: string,
+  id: string,
+  address: AddressType?,
+  department: {{Dept}}?
+}
+
+create type testtype2 as open {
+  name: string,
+  id: string
+}
+
+create dataset testds(testtype) primary key id;
+
+create dataset testds2(testtype2) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.2.update.aql
new file mode 100644
index 0000000..0fcffa7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.2.update.aql
@@ -0,0 +1,29 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": "001", "name": "Person One", "address": {"street": "3019 DBH",  "city": "Irvine", "zip": 92697}, "department": {{ {"name":"CS", "id":299, "review":5}, {"name":"EE", "id":399} }} }
+);
+
+insert into dataset testds (
+{ "id": "002", "name": "Person Two" }
+);
+
+insert into dataset testds (
+{ "id": "003", "name": "Person Three", "address": {"street": "2019 DBH",  "city": "Irvine"} }
+);
+
+insert into dataset testds (
+{ "id": "004", "name": "Person Four", "address": {"street": "1019 DBH",  "city": "irvine", "property": {"zip": 92697, "review": "positive" }  } }
+);
+
+insert into dataset testds2 (
+ for $d in dataset("testds") 
+	return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.3.query.aql
new file mode 100644
index 0000000..66613eb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o-recursive/opentype-c2o-recursive.3.query.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds2") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.1.ddl.aql
new file mode 100644
index 0000000..4af3fcd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.1.ddl.aql
@@ -0,0 +1,30 @@
+/* 
+ * Test case Name  : opentype-c2o.aql
+ * Description     : read data from a closed type dataset into a open type dataset and verify if
+ *					records can be casted to the target open type 
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as closed {
+  id: string,
+  name: string,
+  hobby: {{string}}?
+}
+
+/*
+* name and hobby from the closed dataset will
+* become open fields, and hobby can be null
+*/
+create type testtype2 as open {
+  id: string
+}
+
+create dataset testds(testtype) primary key id;
+
+create dataset testds2(testtype2) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.2.update.aql
new file mode 100644
index 0000000..7ef3e8e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.2.update.aql
@@ -0,0 +1,34 @@
+/* 
+ * Test case Name  : opentype-c2o.aql
+ * Description     : read data from a closed type dataset into a open type dataset and verify if
+ *					records can be casted to the target open type 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+ 
+insert into dataset testds (
+{ "hobby": {{"music", "coding"}}, "id": "001", "name": "Person Three"}
+);
+
+insert into dataset testds (
+{ "name": "Person One", "id": "002", "hobby": {{"sports"}} }
+);
+
+insert into dataset testds (
+{ "id": "003", "hobby": {{"movie", "sports"}}, "name": "Person Two"}
+);
+
+insert into dataset testds (
+{ "id": "004", "name": "Person Four", "hobby": {{"swimming"}} }
+);
+ 
+insert into dataset testds (
+{ "name": "Person Five", "id": "005"}
+); 
+ 
+insert into dataset testds2 (
+ for $d in dataset("testds") 
+	return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.3.query.aql
new file mode 100644
index 0000000..d866300
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-c2o/opentype-c2o.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : opentype-c2o.aql
+ * Description     : read data from a closed type dataset into a open type dataset and verify if
+ *					records can be casted to the target open type 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds2") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.1.ddl.aql
new file mode 100644
index 0000000..7684396
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.1.ddl.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : opentype-closed-optional.aql
+ * Description     : verify that closed type can have optional fields
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as closed {
+  name: string?,
+  id: string
+}
+
+create dataset testds(testtype) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.2.update.aql
new file mode 100644
index 0000000..83c5d1a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.2.update.aql
@@ -0,0 +1,16 @@
+/* 
+ * Test case Name  : opentype-closed-optional.aql
+ * Description     : verify that closed type can have optional fields
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": "001", "name": "Person One"}
+);
+
+insert into dataset testds (
+{ "id": "002"}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.3.query.aql
new file mode 100644
index 0000000..4807bc6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-closed-optional/opentype-closed-optional.3.query.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : opentype-closed-optional.aql
+ * Description     : verify that closed type can have optional fields
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.1.ddl.aql
new file mode 100644
index 0000000..dca5d7e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.1.ddl.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : opentype-insert.aql
+ * Description     : verify static type casting
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as open {
+  id: string,
+  name: string
+}
+
+create dataset testds(testtype) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.2.update.aql
new file mode 100644
index 0000000..2ac8eed
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : opentype-insert.aql
+ * Description     : verify static type casting
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+ 
+ insert into dataset testds (
+ { "id": "001", "name": "Person Three", "hobbies": {{"scuba", "music"}}}
+ );
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.3.query.aql
new file mode 100644
index 0000000..3e16526
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert/opentype-insert.3.query.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : opentype-insert.aql
+ * Description     : verify static type casting
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds") 
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.1.ddl.aql
new file mode 100644
index 0000000..aa70a99
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.1.ddl.aql
@@ -0,0 +1,18 @@
+/* 
+ * Test case Name  : opentype-insert2.aql
+ * Description     : verify that the case where SetClosedRecordRule should not rewrite
+ *					the plan to use closed-record-descriptor
+ * Expected Result : Success
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+	id:int32
+}
+
+create dataset testds(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.2.update.aql
new file mode 100644
index 0000000..ec357bf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.2.update.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : opentype-insert2.aql
+ * Description     : verify that the case where SetClosedRecordRule should not rewrite
+ *					the plan to use closed-record-descriptor
+ * Expected Result : Success
+ */
+
+use dataverse test;
+
+insert into dataset testds( for $i in range(1,10) return { "id":$i,"name":"John Doe" });
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.3.query.aql
new file mode 100644
index 0000000..dd14e87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-insert2/opentype-insert2.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : opentype-insert2.aql
+ * Description     : verify that the case where SetClosedRecordRule should not rewrite
+ *					the plan to use closed-record-descriptor
+ * Expected Result : Success
+ */
+
+use dataverse test;
+
+for $l in dataset('testds')
+order by $l.id
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.1.ddl.aql
new file mode 100644
index 0000000..55f2cf7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.1.ddl.aql
@@ -0,0 +1,18 @@
+/* 
+ * Test case Name  : opentype-noexpand.aql
+ * Description     : verify that open type dataset can have records without open fields
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+ 
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as open {
+  name: string?,
+  id: string
+}
+
+create dataset testds(testtype) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.2.update.aql
new file mode 100644
index 0000000..748ab7c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.2.update.aql
@@ -0,0 +1,17 @@
+/* 
+ * Test case Name  : opentype-noexpand.aql
+ * Description     : verify that open type dataset can have records without open fields
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": "001", "name": "Person One"}
+);
+
+insert into dataset testds (
+{ "id": "002"}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.3.query.aql
new file mode 100644
index 0000000..7ed01bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-noexpand/opentype-noexpand.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : opentype-noexpand.aql
+ * Description     : verify that open type dataset can have records without open fields
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.ddl.aql
new file mode 100644
index 0000000..0ca863f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.ddl.aql
@@ -0,0 +1,37 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type AddressType as open{
+  street: string,
+  city: string
+}
+
+create type Dept as closed{
+	name: string,
+	id: int32
+}
+
+create type testtype as open {
+  name: string,
+  id: string
+}
+
+create type testtype2 as closed {
+  name: string,
+  id: string,
+  address: AddressType?,
+  department: {{Dept}}?
+}
+
+create dataset testds(testtype) primary key id;
+
+create dataset testds2(testtype2) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.2.update.aql
new file mode 100644
index 0000000..62895ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.2.update.aql
@@ -0,0 +1,29 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": "001", "name": "Person One", "address": {"street": "3019 DBH",  "city": "Irvine", "zip": 92697}, "department": {{ {"name":"CS", "id":299}, {"name":"EE", "id":399} }} }
+);
+
+insert into dataset testds (
+{ "id": "002", "name": "Person Two" }
+);
+
+insert into dataset testds (
+{ "id": "003", "name": "Person Three", "address": {"street": "2019 DBH",  "city": "Irvine"} }
+);
+
+insert into dataset testds (
+{ "id": "004", "name": "Person Four", "address": {"street": "1019 DBH",  "city": "irvine", "property": {"zip": 92697, "review": "positive" }  } }
+);
+
+insert into dataset testds2 (
+ for $d in dataset("testds") 
+	return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.3.query.aql
new file mode 100644
index 0000000..66613eb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c-recursive/opentype-o2c-recursive.3.query.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : opentype-o2c-recursive.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds2") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.1.ddl.aql
new file mode 100644
index 0000000..d1dfd51
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.1.ddl.aql
@@ -0,0 +1,28 @@
+/* 
+ * Test case Name  : opentype-o2c.aql
+ * Description     : verify that open records can be inserted into a closed dataset
+ *					 verify missing optional fields in the closed part of the target closed dataset are allowed
+ * Expected Result : Success
+ */
+
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as open {
+  id: string,
+  name: string
+}
+
+create type testtype2 as closed {
+  hobby: {{string}}?,
+  id: string,
+  name: string
+}
+
+create dataset testds(testtype) primary key id;
+
+create dataset testds2(testtype2) primary key id; 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.2.update.aql
new file mode 100644
index 0000000..ea05185
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.2.update.aql
@@ -0,0 +1,34 @@
+/* 
+ * Test case Name  : opentype-o2c.aql
+ * Description     : verify that open records can be inserted into a closed dataset
+ *					 verify missing optional fields in the closed part of the target closed dataset are allowed
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+ 
+insert into dataset testds (
+{ "id": "001",  "hobby": {{"music"}}, "name": "Person Three"}
+);
+
+insert into dataset testds (
+{ "id": "002", "name": "Person Three", "hobby": {{"football"}}}
+);
+
+insert into dataset testds (
+{ "id": "003", "name": "Person Three", "hobby": {{"movie", "coding", "debugging"}}}
+);
+
+insert into dataset testds (
+{ "name": "Person Three", "hobby": {{"swimming", "music"}}, "id": "004"}
+);
+
+insert into dataset testds (
+{ "id": "005", "name": "Person Five"}
+);
+
+insert into dataset testds2 (
+ for $d in dataset("testds") 
+	return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.3.query.aql
new file mode 100644
index 0000000..2b74737
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2c/opentype-o2c.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : opentype-o2c.aql
+ * Description     : verify that open records can be inserted into a closed dataset
+ *					 verify missing optional fields in the closed part of the target closed dataset are allowed
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds2") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.1.ddl.aql
new file mode 100644
index 0000000..aac8e02
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.1.ddl.aql
@@ -0,0 +1,28 @@
+/* 
+ * Test case Name  : opentype-o2o.aql
+ * Description     : verify that the dynamic type cast from one open type to another compatible open type
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+
+use dataverse testdv2;
+
+create type testtype as open {
+  name: string,
+  id: string
+}
+
+create type testtype2 as open {
+  id: string,
+  name: string,
+  hobby: string
+}
+
+create dataset testds(testtype) primary key id;
+
+create dataset testds2(testtype2) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.2.update.aql
new file mode 100644
index 0000000..33290c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.2.update.aql
@@ -0,0 +1,31 @@
+/* 
+ * Test case Name  : opentype-o2o.aql
+ * Description     : verify that the dynamic type cast from one open type to another compatible open type
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+
+
+use dataverse testdv2;
+ 
+insert into dataset testds (
+{ "name": "Person One",  "id": "001", "hobby": "music"}
+);
+
+insert into dataset testds (
+{ "hobby": "football", "city":"irvine", "name": "Person Two", "id": "002"}
+);
+
+insert into dataset testds (
+{ "name": "Person Three",  "id": "003",  "hobby": "movie"}
+);
+
+insert into dataset testds (
+{ "hobby": "swimming", "name": "Person Four", "id": "004", "phone":"102-304-506"}
+);
+
+insert into dataset testds2 (
+ for $d in dataset("testds") 
+	return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.3.query.aql
new file mode 100644
index 0000000..2bed855
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/opentype-o2o/opentype-o2o.3.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : opentype-o2o.aql
+ * Description     : verify that the dynamic type cast from one open type to another compatible open type
+ *					 verify the bag-based fields
+ * Expected Result : Success
+ */
+
+
+use dataverse testdv2;
+
+for $d in dataset("testds2") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.1.ddl.aql
new file mode 100644
index 0000000..dfb68c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+ * Description  : This test case is to verify the fix for issue205
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=205
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type EmployeeStat as open {
+  age: int32,
+  salary:int32
+}
+
+create type EmployeeType as closed {
+  id:string,
+  stat:EmployeeStat,
+  deptCode:int32
+}
+
+create dataset Employees(EmployeeType)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.2.update.aql
new file mode 100644
index 0000000..43ef565
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.2.update.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : This test case is to verify the fix for issue205
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=205
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+use dataverse test;
+
+insert into dataset Employees({"id":"1234", "stat":{ "age":50, "salary":120000}, "deptCode":32 });
+insert into dataset Employees({"id":"5678", "stat":{ "age":40, "salary":100000}, "deptCode":16 });
+
+delete $l from dataset Employees where $l.id = "1234";
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.3.query.aql
new file mode 100644
index 0000000..3a50569
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue205/query-issue205.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : This test case is to verify the fix for issue205
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=205
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('Employees')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.1.ddl.aql
new file mode 100644
index 0000000..0f548a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.1.ddl.aql
@@ -0,0 +1,23 @@
+/*
+ * Description  : This test case is to verify the fix for issue288
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=288
+ * Expected Res : Success
+ * Date         : 3th April 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
+create dataset LineID2(LineIDType)
+  primary key l_orderkey, l_linenumber;
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.2.update.aql
new file mode 100644
index 0000000..181085f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.2.update.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : This test case is to verify the fix for issue288
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=288
+ * Expected Res : Success
+ * Date         : 3th April 2013
+ */
+
+use dataverse test;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+
+insert into dataset LineID (
+let $x:=1
+let $y:=2
+let $z:=3
+return {
+	"l_orderkey": $x,
+	"l_linenumber": $y,
+	"l_suppkey": $z
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.3.ddl.aql
new file mode 100644
index 0000000..c3a2bef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : This test case is to verify the fix for issue288
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=288
+ * Expected Res : Success
+ * Date         : 3th April 2013
+ */
+use dataverse test;
+
+create index idx_LineID_1 on LineID(l_linenumber);
+create index idx_LineID_2 on LineID2(l_linenumber);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.4.update.aql
new file mode 100644
index 0000000..2ae4ba0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.4.update.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : This test case is to verify the fix for issue288
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=288
+ * Expected Res : Success
+ * Date         : 3th April 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset LineID2
+(
+	for $r in dataset('LineID')
+	return $r
+);
+
+// If we replace the insert statement with this, it will work
+/* insert into dataset LineID2
+(
+	for $r in dataset('LineID')
+	return {
+"l_orderkey": $r.l_orderkey, 
+"l_linenumber": $r.l_linenumber, 
+"l_suppkey": $r.l_suppkey}
+);
+*/ 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.5.query.aql
new file mode 100644
index 0000000..a1196bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/query-issue288/query-issue288.5.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : This test case is to verify the fix for issue288
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=288
+ * Expected Res : Success
+ * Date         : 3th April 2013
+ */
+ 
+use dataverse test;
+   
+for $c in dataset('LineID2')
+where $c.l_linenumber=2
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..cc50d0d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,29 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..83d6233
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.2.update.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..5e2f2e3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index age_index on Customers(age);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..6c6f4a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.4.update.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+delete $c from dataset Customers where $c.cid>=200;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..457e5ed
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+for $c in dataset('Customers')
+where $c.age < 20
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..d00347d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..1d5d4fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..a79828c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..7e917b5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..c1c6247
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..e98b328
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
@@ -0,0 +1,23 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
new file mode 100644
index 0000000..381ce87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..ede69f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
new file mode 100644
index 0000000..9c58c7e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
new file mode 100644
index 0000000..ca070fc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..45570ac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..d26c270
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..3747bb1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..eb15450
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..c1fb278
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..9d04c14
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql
new file mode 100644
index 0000000..a5995f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..97aef53
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql
new file mode 100644
index 0000000..001e605
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql
new file mode 100644
index 0000000..7910859
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..370ac1c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..a0c9b77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..81104ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..68fc68b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..cc3c827
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..e6f184c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.ddl.aql
@@ -0,0 +1,23 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.2.update.aql
new file mode 100644
index 0000000..5257ea5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..127c55d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.4.update.aql
new file mode 100644
index 0000000..6a87cc9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.5.query.aql
new file mode 100644
index 0000000..5650a21
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary ngram inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..36b3d31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,22 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..e66540c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..98ccfea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..0116a0a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index that are built on nullable fields.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..979fb45
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index that are built on nullable fields. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..5332316
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.1.ddl.aql
@@ -0,0 +1,23 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.2.update.aql
new file mode 100644
index 0000000..95fd5e8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..3481942
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.3.ddl.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.4.update.aql
new file mode 100644
index 0000000..d480735
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.4.update.aql
@@ -0,0 +1,10 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.5.query.aql
new file mode 100644
index 0000000..39603e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-delete-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test deletion from secondary keyword inverted index.
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..b3124f7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,26 @@
+/* 
+ * Test case Name  : scan-delete-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point?,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..8676d7e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.2.update.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialDataNulls.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..1fc9251
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index rtree_index_point on MyData(point) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..8e4de85
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.4.update.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+delete $m from dataset MyData where $m.id>10;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..e453b2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test deletion from secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index.aql
deleted file mode 100644
index bb2f934..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as closed {
-  id: int32,
-  point: point,
-  kwds: string,
-  line1: line,
-  line2: line,
-  poly1: polygon,
-  poly2: polygon,
-  rec: rectangle
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset MyData(MyRecord)
-  partitioned by key id on group1;
-
-load dataset MyData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
-
-create index rtree_index_point on MyData(point) type rtree;
-
-delete $m from dataset MyData where $m.id>10;
-
-write output to nc1:"rttest/dml_scan-delete-rtree-secondary-index.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
-order by $o.id
-return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..4cd746b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.2.update.aql
new file mode 100644
index 0000000..2c4c9ed
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..1fc9251
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index rtree_index_point on MyData(point) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.4.update.aql
new file mode 100644
index 0000000..8e4de85
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.4.update.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+delete $m from dataset MyData where $m.id>10;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.5.query.aql
new file mode 100644
index 0000000..5b8dbf7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.5.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..0114f45
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,30 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+create dataset CustomersMini(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..ff4c09b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.2.update.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..84ad3b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index age_index on CustomersMini(age);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..e518fca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.4.update.aql
@@ -0,0 +1,16 @@
+use dataverse test;
+
+insert into dataset CustomersMini
+(
+	for $c in dataset('Customers')
+	where $c.cid < 200	
+	return {
+	  "cid": $c.cid,
+  	  "name": $c.name,
+  	  "age": $c.age,
+  	  "address": $c.address,
+  	  "interests": $c.interests,
+  	  "children": $c.children
+	}	
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..e496b10
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-delete-btree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary btree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+
+use dataverse test;
+
+for $c in dataset('CustomersMini')
+where $c.age < 20
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..21ff64a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..9108ad6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..426654c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
+create index fuzzy_ngram_index1 on DBLP1(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..2fe30df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
@@ -0,0 +1,21 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..f61df2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..af890c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
new file mode 100644
index 0000000..382a4a6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..8109213
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
+create index fuzzy_ngram_index1 on DBLP1(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
new file mode 100644
index 0000000..b829b15
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
@@ -0,0 +1,21 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
new file mode 100644
index 0000000..324b351
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..7dbf7ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..1d8126f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..798622a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
+create index fuzzy_keyword_index1 on DBLP1(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..3234c4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
@@ -0,0 +1,20 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..43ad95c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..5dd6f1a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql
new file mode 100644
index 0000000..25e9446
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..f43c5cf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
+create index fuzzy_keyword_index1 on DBLP1(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql
new file mode 100644
index 0000000..b8a1af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql
@@ -0,0 +1,20 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql
new file mode 100644
index 0000000..0fe611a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..5f82843
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..bde4abd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..23a302b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+create index ngram_index1 on DBLP1(title) type ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..ccef47a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.4.update.aql
@@ -0,0 +1,21 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..ec2c974
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..eee618b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.2.update.aql
new file mode 100644
index 0000000..a22b722
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..d40a27b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+create index ngram_index1 on DBLP1(title) type ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.4.update.aql
new file mode 100644
index 0000000..3d81edf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.4.update.aql
@@ -0,0 +1,21 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.5.query.aql
new file mode 100644
index 0000000..bd9eb2b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-ngram-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary ngram inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..bafad5b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string?,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..e3f0c6f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..64d07c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+create index keyword_index1 on DBLP1(title) type keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..b2f265fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.4.update.aql
@@ -0,0 +1,20 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..10bff06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index that are built on nullable fields.  
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..642a0c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.ddl.aql
@@ -0,0 +1,25 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset DBLP1(DBLPType) primary key id;
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.2.update.aql
new file mode 100644
index 0000000..c51f848
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.2.update.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..ac90624
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.3.ddl.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+create index keyword_index1 on DBLP1(title) type keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.4.update.aql
new file mode 100644
index 0000000..57ce169
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.4.update.aql
@@ -0,0 +1,20 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+insert into dataset DBLP1 (
+for $o in dataset('DBLP')
+order by $o.id
+return {
+		"id": $o.id,
+		"dblpid": $o.dblpid,
+		"title": $o.title,
+		"authors": $o.authors,
+		"misc": $o.misc
+	}
+);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.5.query.aql
new file mode 100644
index 0000000..73fc519
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.5.query.aql
@@ -0,0 +1,14 @@
+/* 
+ * Test case Name  : scan-insert-inverted-index-word-secondary-index.aql
+ * Description     : This test is intended to test insertion from secondary keyword inverted index. 
+ * Expected Result : Success
+ * Date            : March 31 2013
+ */
+ 
+use dataverse test;
+
+for $o in dataset('DBLP1')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..6057269
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,31 @@
+/* 
+ * Test case Name  : scan-insert-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point?,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create type MyMiniRecord as closed {
+  id: int32,
+  point: point?
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..1607359
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.2.update.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialDataNulls.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..90716cf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+create dataset MyMiniData(MyMiniRecord)
+  primary key id;
+
+create index rtree_index_point on MyMiniData(point) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.4.update.aql
new file mode 100644
index 0000000..524df93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.4.update.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+insert into dataset MyMiniData
+(
+	for $m in dataset('MyData')
+	return {
+		"id": $m.id,
+		"point": $m.point
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.5.query.aql
new file mode 100644
index 0000000..d3e9cbb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.5.query.aql
@@ -0,0 +1,13 @@
+/* 
+ * Test case Name  : scan-insert-rtree-secondary-index-nullable.aql
+ * Description     : This test is intended to test insertion into secondary rtree indexes that are built on nullable fields 
+ * Expected Result : Success
+ * Date            : May 12 2012
+ */
+
+use dataverse test;
+
+for $o in dataset('MyMiniData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index.aql
deleted file mode 100644
index fe9c017..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index.aql
+++ /dev/null
@@ -1,55 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as closed {
-  id: int32,
-  point: point,
-  kwds: string,
-  line1: line,
-  line2: line,
-  poly1: polygon,
-  poly2: polygon,
-  rec: rectangle
-}
-
-create type MyMiniRecord as closed {
-  id: int32,
-  point: point
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset MyData(MyRecord)
-  partitioned by key id on group1;
-
-load dataset MyData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
-
-
-create dataset MyMiniData(MyMiniRecord)
-  partitioned by key id on group1;
-
-load dataset MyMiniData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData0.json"),("format"="adm")) pre-sorted;
-
-create index rtree_index_point_0 on MyData(point) type rtree;
-create index rtree_index_point on MyMiniData(point) type rtree;
-
-insert into dataset MyMiniData
-(
-	for $m in dataset('MyData')
-	return {
-		"id": $m.id,
-		"point": $m.point
-	}
-);
-
-write output to nc1:"rttest/dml_scan-insert-rtree-secondary-index.adm";
-
-for $o in dataset('MyMiniData')
-where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
-order by $o.id
-return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..58765cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.ddl.aql
@@ -0,0 +1,28 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create type MyMiniRecord as closed {
+  id: int32,
+  point: point
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
+create dataset MyMiniData(MyMiniRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.2.update.aql
new file mode 100644
index 0000000..1102fbd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
+
+load dataset MyMiniData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData0.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..ab9a3f4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index rtree_index_point_0 on MyData(point) type rtree;
+create index rtree_index_point on MyMiniData(point) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.4.update.aql
new file mode 100644
index 0000000..524df93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.4.update.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+insert into dataset MyMiniData
+(
+	for $m in dataset('MyData')
+	return {
+		"id": $m.id,
+		"point": $m.point
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.5.query.aql
new file mode 100644
index 0000000..412f7da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.5.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyMiniData')
+where spatial-intersect($o.point, create-polygon(create-point(0.0,1.0), create-point(0.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_01.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_01.aql
deleted file mode 100644
index 7c1df0f9..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/employee/q_01.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type EmpType as open {
-  id: int32, 
-  name: string,
-  address: {
-  number: int32, 
-  street: string,
-  city: string
-   },
-  age: int32?,
-  interests: {{string}}?,
-  children: [string]?
-}
-
-create external dataset Emp(EmpType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/employee.json"),("format"="adm"));
-        
-write output to nc1:"rttest/employee_q_01.adm";
-      
-for $e in dataset('Emp')
-return $e 
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.1.ddl.aql
new file mode 100644
index 0000000..c7c784f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type EmpType as open {
+  id: int32, 
+  name: string,
+  address: {
+  number: int32, 
+  street: string,
+  city: string
+   },
+  age: int32?,
+  interests: {{string}}?,
+  children: [string]?
+}
+
+create external dataset Emp(EmpType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/employee.json"),("format"="adm"));
+      
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.3.query.aql
new file mode 100644
index 0000000..c640a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_01/q_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $e in dataset('Emp')
+return $e 
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_02.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_02.aql
deleted file mode 100644
index 7cb1ee9..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/employee/q_02.aql
+++ /dev/null
@@ -1,28 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-create type EmpType as open {
-  id: int32, 
-  name: string,
-  address: {
-  number: int32, 
-  street: string,
-  city: string
-   },
-  age: int32?,
-  interests: {{string}}?,
-  children: [string]?
-}
-
-create external dataset Emp(EmpType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/employee.json"),("format"="adm"));
-        
-write output to nc1:"rttest/employee_q_02.adm";
-      
-for $e in dataset('Emp')
-let $m := [{"EmpName": $e.name, "parent_interest_1": $e.interests[?], "child1Name": $e.children[?], "child2Name": $e.children[1]}]
-return $m 
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.1.ddl.aql
new file mode 100644
index 0000000..5066a4f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.1.ddl.aql
@@ -0,0 +1,22 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type EmpType as open {
+  id: int32, 
+  name: string,
+  address: {
+  number: int32, 
+  street: string,
+  city: string
+   },
+  age: int32?,
+  interests: {{string}}?,
+  children: [string]?
+}
+
+create external dataset Emp(EmpType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/employee.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.3.query.aql
new file mode 100644
index 0000000..454e236
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/employee/q_02/q_02.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $e in dataset('Emp')
+let $m := [{"EmpName": $e.name, "parent_interest_1": $e.interests[?], "child1Name": $e.children[?], "child2Name": $e.children[1]}]
+return $m 
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree.aql
index 0ad2dde..85616e4 100644
--- a/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree.aql
@@ -11,21 +11,20 @@
 	text: string
 }
 
-
-create nodegroup group1  if not exists on nc1, nc2;
-
 create dataset MyData(MyRecord)
-  partitioned by key id on group1;
+  primary key id;
+
+create index rtree_index on MyData(loc) type rtree;
 
 load dataset MyData 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
 (("path"="nc1://data/twitter/smalltweets.txt"),("format"="adm")) pre-sorted;
 
-
-delete $l from dataset MyData where $l.id>=50 die after 1500;
+delete $l from dataset MyData where spatial-intersect($l.loc, create-rectangle(create-point(0.0,-100.0), create-point(55.5,50.0))) die after 1000;
 
 write output to nc1:"rttest/failure_delete-rtree.adm";      
 
 for $o in dataset('MyData')
+where spatial-intersect($o.loc, create-rectangle(create-point(0.0,-100.0), create-point(55.5,50.0)))
 order by $o.id
 return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.1.ddl.aql
new file mode 100644
index 0000000..d8ab247
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+	id: int32,
+	tweetid: int64,
+	loc: point,
+	time: datetime,
+	text: string
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.2.update.aql
new file mode 100644
index 0000000..3556905
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.2.update.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/smalltweets.txt"),("format"="adm")) pre-sorted;
+
+delete $l from dataset MyData where $l.id>=50 die after 1500;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.3.query.aql
new file mode 100644
index 0000000..b33019b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete-rtree/delete-rtree.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
index cb51030..125fd99 100644
--- a/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
@@ -22,17 +22,14 @@
   l_comment: string
 }
 
-create nodegroup group1  if not exists on nc1, nc2;
-
 create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber;
 
 load dataset LineItem 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
 (("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
 
-
-delete $l from dataset LineItem where $l.l_orderkey>=10 die after 1500;
+delete $l from dataset LineItem where $l.l_orderkey>=10 die after 1000;
 
 write output to nc1:"rttest/failure_delete.adm";      
 for $c in dataset('LineItem')
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.1.ddl.aql
new file mode 100644
index 0000000..ea29045
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.1.ddl.aql
@@ -0,0 +1,28 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.2.update.aql
new file mode 100644
index 0000000..ac2bd60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.2.update.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+delete $l from dataset LineItem where $l.l_orderkey>=10 die after 1500;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.3.query.aql
new file mode 100644
index 0000000..9375d30
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete/delete.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+    
+for $c in dataset('LineItem')
+where $c.l_orderkey>=10
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree.aql
deleted file mode 100644
index ca4e910..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree.aql
+++ /dev/null
@@ -1,65 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as closed {
-	id: int32,
-	tweetid: int64,
-	loc: point,
-	time: datetime,
-	text: string
-}
-
-create type MyMiniRecord as closed {
-  id: int32,
-  loc: point
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset MyData(MyRecord)
-  partitioned by key id on group1;
-
-load dataset MyData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/twitter/smalltweets.txt"),("format"="adm")) pre-sorted;
-
-
-create dataset MyMiniData(MyMiniRecord)
-  partitioned by key id on group1;
-
-load dataset MyMiniData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData0.json"),("format"="adm")) pre-sorted;
-
-
-create index rtree_index_loc_0 on MyData(loc) type rtree;
-create index rtree_index_loc on MyMiniData(loc) type rtree;
-
-insert into dataset MyMiniData
-(
-	for $m in dataset('MyData')
-	where $m.id<1000
-	return {
-		"id": $m.id,
-		"loc": $m.loc
-	}
-);
-
-insert into dataset MyMiniData
-(
-	for $m in dataset('MyData')
-	where $m.id>=1000
-	die after 1000
-	return {
-		"id": $m.id,
-		"loc": $m.loc
-	}
-);
-
-write output to nc1:"rttest/failure_insert-rtree.adm";
-
-for $o in dataset('MyMiniData')
-order by $o.id
-return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.1.ddl.aql
new file mode 100644
index 0000000..0cb052d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+	id: int32,
+	tweetid: int64,
+	loc: point,
+	time: datetime,
+	text: string
+}
+
+create type MyMiniRecord as closed {
+  id: int32,
+  loc: point
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
+create dataset MyMiniData(MyMiniRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.2.update.aql
new file mode 100644
index 0000000..bffd599
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.2.update.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/smalltweets.txt"),("format"="adm")) pre-sorted;
+
+
+load dataset MyMiniData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData0.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.3.ddl.aql
new file mode 100644
index 0000000..3626933
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index rtree_index_loc_0 on MyData(loc) type rtree;
+create index rtree_index_loc on MyMiniData(loc) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.4.update.aql
new file mode 100644
index 0000000..5874119
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.4.update.aql
@@ -0,0 +1,23 @@
+use dataverse test;
+
+insert into dataset MyMiniData
+(
+	for $m in dataset('MyData')
+	where $m.id<1000
+	return {
+		"id": $m.id,
+		"loc": $m.loc
+	}
+);
+
+insert into dataset MyMiniData
+(
+	for $m in dataset('MyData')
+	where $m.id>=1000
+	die after 1000
+	return {
+		"id": $m.id,
+		"loc": $m.loc
+	}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.5.query.aql
new file mode 100644
index 0000000..6c75ca2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert-rtree/insert-rtree.5.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $o in dataset('MyMiniData')
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert.aql
deleted file mode 100644
index 570f4bc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/failure/insert.aql
+++ /dev/null
@@ -1,72 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type LineIDType as closed {
-  l_orderkey: int32, 
-  l_linenumber: int32, 
-  l_suppkey: int32
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-create dataset LineID(LineIDType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset LineID 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-insert into dataset LineID (
-for $l in dataset('LineItem')
-	where $l.l_orderkey<1000
-	return {
-		"l_orderkey": $l.l_orderkey,
-		"l_partkey": $l.l_linenumber,
-		"l_suppkey": $l.l_partkey
-	}
-);
-
-insert into dataset LineID (
-for $l in dataset('LineItem')
-	where $l.l_orderkey>=1000
-	die after 1000
-	return {
-		"l_orderkey": $l.l_orderkey,
-		"l_partkey": $l.l_linenumber,
-		"l_suppkey": $l.l_partkey
-	}
-);
-
-write output to nc1:"rttest/failure_insert.adm";      
-for $c in dataset('LineID')
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.1.ddl.aql
new file mode 100644
index 0000000..7f5844e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.1.ddl.aql
@@ -0,0 +1,37 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type LineIDType as closed {
+  l_orderkey: int32, 
+  l_linenumber: int32, 
+  l_suppkey: int32
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
+create dataset LineID(LineIDType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.2.update.aql
new file mode 100644
index 0000000..a1bfc0d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.2.update.aql
@@ -0,0 +1,32 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset LineID 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem_0.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+insert into dataset LineID (
+for $l in dataset('LineItem')
+	where $l.l_orderkey<1000
+	return {
+		"l_orderkey": $l.l_orderkey,
+		"l_linenumber": $l.l_linenumber,
+		"l_suppkey": $l.l_partkey
+	}
+);
+
+insert into dataset LineID (
+for $l in dataset('LineItem')
+	where $l.l_orderkey>=1000
+	die after 1000
+	return {
+		"l_orderkey": $l.l_orderkey,
+		"l_linenumber": $l.l_linenumber,
+		"l_suppkey": $l.l_partkey
+	}
+);
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.3.query.aql
new file mode 100644
index 0000000..4a3e056
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/insert/insert.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('LineID')
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure.aql b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure.aql
deleted file mode 100644
index def6e9a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure.aql
+++ /dev/null
@@ -1,55 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/failure_q1_pricing_summary_report_failure.adm";
- 
-for $l in dataset('LineItem')
-//where inject-failure($l.l_shipdate <= '1998-09-02', $l.l_orderkey=5999)
-/*+ hash*/
-group by $l_returnflag := $l.l_returnflag, $l_linestatus := $l.l_linestatus  
-  with $l
-order by $l_returnflag, $l_linestatus
-return {
-  "l_returnflag": $l_returnflag,
-  "l_linestatus": $l_linestatus,
-  "sum_qty": sum(for $i in $l return $i.l_quantity),
-  "sum_base_price": sum(for $i in $l return $i.l_extendedprice),
-  "sum_disc_price": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount)),
-  "sum_charge": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount) * (1 + $i.l_tax)),
-  "ave_qty": avg(for $i in $l return $i.l_quantity),  
-  "ave_price": avg(for $i in $l return $i.l_extendedprice),
-  "ave_disc": avg(for $i in $l return $i.l_discount),
-  "count_order": count($l)
-}   
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.1.ddl.aql
new file mode 100644
index 0000000..2ff7f3e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.2.update.aql
new file mode 100644
index 0000000..f781e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.3.query.aql
new file mode 100644
index 0000000..c80a20a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.3.query.aql
@@ -0,0 +1,21 @@
+use dataverse tpch;
+
+ 
+for $l in dataset('LineItem')
+//where inject-failure($l.l_shipdate <= '1998-09-02', $l.l_orderkey=5999)
+/*+ hash*/
+group by $l_returnflag := $l.l_returnflag, $l_linestatus := $l.l_linestatus  
+  with $l
+order by $l_returnflag, $l_linestatus
+return {
+  "l_returnflag": $l_returnflag,
+  "l_linestatus": $l_linestatus,
+  "sum_qty": sum(for $i in $l return $i.l_quantity),
+  "sum_base_price": sum(for $i in $l return $i.l_extendedprice),
+  "sum_disc_price": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount)),
+  "sum_charge": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount) * (1 + $i.l_tax)),
+  "ave_qty": avg(for $i in $l return $i.l_quantity),  
+  "ave_price": avg(for $i in $l return $i.l_extendedprice),
+  "ave_disc": avg(for $i in $l return $i.l_discount),
+  "count_order": count($l)
+}   
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree.aql b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree.aql
new file mode 100644
index 0000000..a8d7d37
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+write output to nc1:"rttest/failure_verify_delete-rtree.adm";
+
+for $o in dataset('MyData')
+where spatial-intersect($o.loc, create-rectangle(create-point(0.0,-100.0), create-point(55.5,50.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.3.query.aql
new file mode 100644
index 0000000..b33019b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete-rtree/verify_delete-rtree.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.3.query.aql
new file mode 100644
index 0000000..2a0f3e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/verify_delete/verify_delete.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('LineItem')
+where $c.l_orderkey>=10
+order by $c.l_orderkey, $c.l_linenumber
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.3.query.aql
new file mode 100644
index 0000000..6c75ca2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert-rtree/verify_insert-rtree.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $o in dataset('MyMiniData')
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.3.query.aql
new file mode 100644
index 0000000..4cb52c5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/verify_insert/verify_insert.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $c in dataset('LineID')
+order by $c.l_orderkey, $c.l_linenumber
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.1.ddl.aql
new file mode 100644
index 0000000..4705cce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.1.ddl.aql
@@ -0,0 +1,22 @@
+/*
+ * Description  : Create a feed dataset and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("output-type-name"="TweetType"),("fs"="localfs"),("path"="nc1://data/twitter/obamatweets.adm"),("format"="adm"),("tuple-interval"="10"))
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.2.update.aql
new file mode 100644
index 0000000..e001747
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create a feed dataset and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.3.query.aql
new file mode 100644
index 0000000..5ee2e87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_01/feeds_01.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create a feed dataset and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='feeds' and $x.DatasetName='TweetFeed'
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql
new file mode 100644
index 0000000..aafd2c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("fs"="localfs"),("path"="nc1://data/twitter/obamatweets.adm"),("format"="adm"),("output-type-name"="TweetType"),("tuple-interval"="10"))
+primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql
new file mode 100644
index 0000000..01b0925
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+use dataverse feeds;
+  
+begin feed TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.3.query.aql
new file mode 100644
index 0000000..01ef318
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_02/feeds_02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+use dataverse feeds;
+
+for $x in dataset('TweetFeed')
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.1.ddl.aql
new file mode 100644
index 0000000..488ed2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.1.ddl.aql
@@ -0,0 +1,28 @@
+/*
+ * Description  : Create a feed dataset with an associated function and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create function feed_processor($x) {
+$x
+}
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("output-type-name"="TweetType"),("fs"="localfs"),("path"="nc1://data/twitter/obamatweets.adm"),("format"="adm"),("tuple-interval"="10"))
+apply function feed_processor@1 
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.2.update.aql
new file mode 100644
index 0000000..e3044ef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description  : Create a feed dataset with an associated function and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.3.query.aql
new file mode 100644
index 0000000..1922f39
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_03/feeds_03.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create a feed dataset with an associated function and verify contents in Metadata
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='feeds' and $x.DatasetName='TweetFeed'
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.1.ddl.aql
new file mode 100644
index 0000000..326b2d5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.1.ddl.aql
@@ -0,0 +1,24 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  The feed simulator simulates feed from a file in the HDFS. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("fs"="hdfs"),("hdfs"="hdfs://127.0.0.1:31888"),("path"="/asterix/obamatweets.adm"),("format"="adm"),("input-format"="text-input-format"),("output-type-name"="TweetType"),("tuple-interval"="10"))
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql
new file mode 100644
index 0000000..060576e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  The feed simulator simulates feed from a file in the HDFS. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+  
+use dataverse feeds;
+
+begin feed TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.3.query.aql
new file mode 100644
index 0000000..5146fb5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/feeds_04/feeds_04.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  The feed simulator simulates feed from a file in the HDFS. 
+                  Begin ingestion and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+use dataverse feeds;
+
+for $x in dataset('TweetFeed')
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql
new file mode 100644
index 0000000..62ac61f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.1.ddl.aql
@@ -0,0 +1,23 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("fs"="localfs"),("path"="nc1://data/twitter/obamatweets.adm"),("format"="adm"),("output-type-name"="TweetType"),("tuple-interval"="10"))
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql
new file mode 100644
index 0000000..0e22d6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+
+use dataverse feeds;
+  
+begin feed feeds.TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.3.query.aql
new file mode 100644
index 0000000..d94576b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/feeds/issue_230_feeds/issue_230_feeds.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 24th Dec 2012
+ */
+use dataverse feeds;
+
+for $x in dataset('TweetFeed')
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/float_01.aql b/asterix-app/src/test/resources/runtimets/queries/float_01.aql
deleted file mode 100644
index dea3790..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/float_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/float_01.adm";
-
-for $f in [1f, 1F, 1.1f, 1.1F, .1f, .1F]
-return $f
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.1.ddl.aql
new file mode 100644
index 0000000..c50e488
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.2.update.aql
new file mode 100644
index 0000000..c50e488
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.3.query.aql
new file mode 100644
index 0000000..046c55f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for01/for01.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
+for $a in [1,2,3,4,5,6,7,8,9]
+where not(false)
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.3.query.aql
new file mode 100644
index 0000000..aa75cfa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for02/for02.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [[1,2,3,4,5,6,7,8,9],[20,30,40,50,60,70,80]]
+where true
+return for $b in $a where $b > 5 and $b <70 return $b
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.3.query.aql
new file mode 100644
index 0000000..00bf474
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for03/for03.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [[1,2,3,4,5,6,7,8,9,0],["r","t","w","a"],[11,34,56,78,98,01,12,34,56,76,83],[null,null,null],[" ","","    "],["at"],[-1],[0]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.3.query.aql
new file mode 100644
index 0000000..0d26a37
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for04/for04.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [[1,2,3,4,5,6,7,8,9,0],[11,34,56,78,98,01,12,34,56,76,83],[null,null,null,"and","bat","gone","do"],[" ","","    "],["at"],[-1],[0]]
+where len($a) > 1
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.3.query.aql
new file mode 100644
index 0000000..f2f1ca3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for05/for05.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [1,2,3,4,5,6,7,8,9]
+where ()
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.3.query.aql
new file mode 100644
index 0000000..9cc9fe3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for06/for06.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [1,2,3,4,5,6,7,8,9]
+where $undefined
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.3.query.aql
new file mode 100644
index 0000000..9639c60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for07/for07.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [{"name":"Bob","age":10,"sex":"Male"},{"name":"John","age":45,"sex":"Female"},{"name":"Raj","age":35,"sex":"Male"}]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.3.query.aql
new file mode 100644
index 0000000..f0e0191
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for08/for08.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [{"name":"Bob","age":10,"sex":"Male"},{"name":"John","age":45,"sex":"Female"},{"name":"Raj","age":35,"sex":"Male"}]
+where $a.name="John"
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.3.query.aql
new file mode 100644
index 0000000..4b0ac18
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for09/for09.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+
+for $a in [{"name":"Bob","age":10,"sex":"Male"},{"name":"John","age":45,"sex":"Female"},{"name":"Raj","age":35,"sex":"Male"}]
+where $a.name="Tom"
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.3.query.aql
new file mode 100644
index 0000000..99c96b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for10/for10.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [{"name":"Bob","age":10,"sex":"Male"},{"name":"John","age":45,"sex":"Female"},{"name":"Raj","age":35,"sex":"Male"}]
+return {"a":$a,"additional-data":{{"this is additional data","this is too","and this is additional too"}}}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.3.query.aql
new file mode 100644
index 0000000..f85b577
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for11/for11.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+
+for $a in [true,true,false,true]
+where $a = true
+return {{"this is additional data","this is too","and this is additional too"}}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.3.query.aql
new file mode 100644
index 0000000..8a372b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for12/for12.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [true,true,false,true]
+where $a = false
+return {"a":{{"this is additional data","this is too","and this is additional too"}},"b":{{"this is additional data","this is too","and this is additional too"}}}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.1.ddl.aql
new file mode 100644
index 0000000..67112ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.3.query.aql
new file mode 100644
index 0000000..307995b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for13/for13.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [true]
+return {{"this is additional data","this is too","and this is additional too"}}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.3.query.aql
new file mode 100644
index 0000000..8932677
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for14/for14.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+
+for $a in [{"name":"Rocky","age":59,"sex":"M"},["job","ink","king","ontario","lavelle"],[1,4,5,6,7,8,9,2,3,4,5,6,7],{{"extra data","extra data","extra data"}}]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.1.ddl.aql
new file mode 100644
index 0000000..67112ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.3.query.aql
new file mode 100644
index 0000000..cb3ac14
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for15/for15.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+
+for $a in [{"name":"Rocky","age":59,"sex":"M"},[1]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.3.query.aql
new file mode 100644
index 0000000..790f9ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for16/for16.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [[[1,2],[3]],[[4,5],[6,7]],[[8,9],[10,11]],[[12,13],[14]],[[15],[16,17]],[[18],[19,20]]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.1.ddl.aql
new file mode 100644
index 0000000..c838616
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.2.update.aql
new file mode 100644
index 0000000..c838616
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.3.query.aql
new file mode 100644
index 0000000..9e05da3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for17/for17.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     : Test union of two lists
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+(for $a in [{"id":1234,"name":"John Doe","age":56,"salary":50000,"dept":"HR"}]
+return $a)
+union
+(for $b in [{"id":3424,"name":"Roger Sanders","age":46,"salary":60000,"dept":"Publishing"}]
+return $b)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.1.ddl.aql
new file mode 100644
index 0000000..c9949e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test nested for and return
+ * Expected Result : Success
+ * Date            : 21st Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.2.update.aql
new file mode 100644
index 0000000..c9949e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test nested for and return
+ * Expected Result : Success
+ * Date            : 21st Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.3.query.aql
new file mode 100644
index 0000000..5131dee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for18/for18.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description     : Test nested for and return
+ * Expected Result : Success
+ * Date            : 21st Aug 2012
+ */
+
+
+for $a in (
+    for $b in (
+               for $c in (
+                         for $d in [1,2,3,4,5,6,7] return $d+1
+               ) return $c+1
+    ) return $b+1
+) return $a+1
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.1.ddl.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.2.update.aql
new file mode 100644
index 0000000..18e88d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.3.query.aql
new file mode 100644
index 0000000..487291b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/for19/for19.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test for clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+for $a in [[1,2,3,4,5,6,7,8,9,0],[11,34,56,78,98,01,12,34,56,76,83]]
+where len($a) > 1
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.1.ddl.aql
new file mode 100644
index 0000000..67722da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.2.update.aql
new file mode 100644
index 0000000..67722da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.3.query.aql
new file mode 100644
index 0000000..252016f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby01/grpby01.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
+for $sales in [{"storeno":"S101","itemno":"P78395","qty":125},
+{"storeno":"S101","itemno":"P71395","qty":135},
+{"storeno":"S102","itemno":"P78395","qty":225},
+{"storeno":"S103","itemno":"P78345","qty":105},
+{"storeno":"S104","itemno":"P71395","qty":115},
+{"storeno":"S105","itemno":"P74395","qty":120}]
+group by $strNum:=$sales.storeno with $sales
+order by $strNum desc
+return {"store-number":$strNum,"total-qty":sum(for $l in $sales return $l.qty)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.1.ddl.aql
new file mode 100644
index 0000000..67722da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.2.update.aql
new file mode 100644
index 0000000..67722da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.3.query.aql
new file mode 100644
index 0000000..252016f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/grpby02/grpby02.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description      :  Test group by clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  31st July 2012
+ */
+
+for $sales in [{"storeno":"S101","itemno":"P78395","qty":125},
+{"storeno":"S101","itemno":"P71395","qty":135},
+{"storeno":"S102","itemno":"P78395","qty":225},
+{"storeno":"S103","itemno":"P78345","qty":105},
+{"storeno":"S104","itemno":"P71395","qty":115},
+{"storeno":"S105","itemno":"P74395","qty":120}]
+group by $strNum:=$sales.storeno with $sales
+order by $strNum desc
+return {"store-number":$strNum,"total-qty":sum(for $l in $sales return $l.qty)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.3.query.aql
new file mode 100644
index 0000000..9836f85
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let01/let01.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := int64("92233720368547758")
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.1.ddl.aql
new file mode 100644
index 0000000..45fb16e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.2.update.aql
new file mode 100644
index 0000000..45fb16e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.3.query.aql
new file mode 100644
index 0000000..a0f936f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let02/let02.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := 92233720368547758
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.3.query.aql
new file mode 100644
index 0000000..ed2c967
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let03/let03.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+
+let $x := int64("92233720368547758")+1
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.3.query.aql
new file mode 100644
index 0000000..4832e2c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let04/let04.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := double("1.7976931348623157E308") 
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.1.ddl.aql
new file mode 100644
index 0000000..45fb16e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.2.update.aql
new file mode 100644
index 0000000..45fb16e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.3.query.aql
new file mode 100644
index 0000000..d8d3023
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let05/let05.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := {"a":(1+1*(100/20))}
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.3.query.aql
new file mode 100644
index 0000000..2d443a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let06/let06.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := 1
+let $y := $x+1
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.3.query.aql
new file mode 100644
index 0000000..894b1da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let07/let07.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x := 1
+let $y := ($x+1)
+return $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.3.query.aql
new file mode 100644
index 0000000..866ad55
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let08/let08.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+
+let $x:=[1,2,3]
+for $b in $x
+let $y:=$b+1
+return $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.3.query.aql
new file mode 100644
index 0000000..2d4439b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let09/let09.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+for $a in range(1,100)
+where $a%5=0
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.1.ddl.aql
new file mode 100644
index 0000000..45fb16e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.1.ddl.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.3.query.aql
new file mode 100644
index 0000000..208a478
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let10/let10.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $x:=[1,2,3,4,5,6,7,8,9,10,11,14,15,17,19,24,35,56,67,77,89,60,35,25,60]
+for $y in $x
+where $y%5=0
+return $y
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.3.query.aql
new file mode 100644
index 0000000..1a96ff3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let11/let11.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+// Return an ordered list comprising of records and other values
+
+let $a := ["a",{"i":1},"b",{"j":2},"c",{"k":3}]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.3.query.aql
new file mode 100644
index 0000000..6b80062
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let12/let12.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $a := 1 
+let $b := $a
+let $c := $a+$b 
+return ($c)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.1.ddl.aql
new file mode 100644
index 0000000..fe07b85
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Failure - Negative test
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.2.update.aql
new file mode 100644
index 0000000..276f5f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Failure - Negative test
+ * Date            :  6th July 2012 
+ */
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.3.query.aql
new file mode 100644
index 0000000..5694530
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let13/let13.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Failure - Negative test
+ * Date            :  6th July 2012 
+ */
+
+// Bind an undefined variable.
+
+let $a := $b 
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.3.query.aql
new file mode 100644
index 0000000..b0cdcad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let14/let14.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+// nested ordered list
+
+let $a := [[[[[[[[[[[[1,2,3,4,5,6,7,8,9,10],[3,4,5,6,7,8,9,0,0],int64("9222872036854775809")]]]]]]]]]]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.3.query.aql
new file mode 100644
index 0000000..2ccdcd8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let15/let15.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+
+// nested ordered list comprising of only one integer value.
+
+let $a := [[[[[[[[[[[int64("9222872036854775809")]]]]]]]]]]]
+return ($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.3.query.aql
new file mode 100644
index 0000000..122d3ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let16/let16.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $a := [[[[[[[[[[[int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809"),int64("9222872036854775809")]]]]]]]]]]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.2.update.aql
new file mode 100644
index 0000000..171ffb4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.3.query.aql
new file mode 100644
index 0000000..4f9be6f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let17/let17.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+let $a := ["and","here","we","are",["this is new","stuff"]]
+return $a
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.3.query.aql
new file mode 100644
index 0000000..c50c871
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let18/let18.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+// An ordered list comprising of an un ordered list.
+
+let $a:=[{{"John Doe",45,"HR",60000,"Separation"}}]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.3.query.aql
new file mode 100644
index 0000000..ef54046
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let19/let19.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+
+// bind and return bag of data
+
+let $a:={{"John Doe",45,"HR",60000,"Separation"}}
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.1.ddl.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.2.update.aql
new file mode 100644
index 0000000..8adc7a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.3.query.aql
new file mode 100644
index 0000000..22814e6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let20/let20.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     :  Test let clause
+ * Expected Result :  Success
+ * Date            :  6th July 2012 
+ */
+
+// An ordered list of un ordered lists, records and ordered list.
+
+let $a:=[{{"John Doe",45,"HR",60000,"Separation"}},{"name":"Roger Sanders","age":50,"dept":"DB2-Books","designatin":"Author"},["DB2 for Z/OS","DB2 for LUW","DB2 9 Application Development","DB2 9 DBA","DB2 for Dummies"]]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.1.ddl.aql
new file mode 100644
index 0000000..3cdce60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test let clause
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.2.update.aql
new file mode 100644
index 0000000..f4af1db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test let clause
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.3.query.aql
new file mode 100644
index 0000000..81f93be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let21/let21.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description      :  Test let clause
+ * Expected Result  :  Success
+ * Date             :  23rd July 2012
+ */
+
+
+// Ordered list of boolean values.
+
+let $a := [boolean("true"),boolean("false"),boolean("true"),boolean("false")]
+let $b := [boolean("false"),boolean("true"),boolean("false"),boolean("true")]
+for $m in $a
+for $n in $b
+where $m=not($n)
+return $m
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.1.ddl.aql
new file mode 100644
index 0000000..26778fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test length of null returned by len() function  
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.2.update.aql
new file mode 100644
index 0000000..26778fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test length of null returned by len() function  
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.3.query.aql
new file mode 100644
index 0000000..da33601
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let22/let22.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     : Test length of null returned by len() function  
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
+let $a := [null]
+return len($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.1.ddl.aql
new file mode 100644
index 0000000..1987047
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test length of ordered list
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.2.update.aql
new file mode 100644
index 0000000..1987047
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test length of ordered list
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.3.query.aql
new file mode 100644
index 0000000..07ea21b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let23/let23.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     : Test length of ordered list
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
+let $a := [1,2,3,4,5,6,7,8,9,null]
+return len($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.1.ddl.aql
new file mode 100644
index 0000000..63959fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.1.ddl.aql
@@ -0,0 +1,14 @@
+/*
+ *  Description     : Test let clause
+ *  Expected Result : Success
+ *  Date            : 23rd July 2012
+ */
+
+/*
+ * m - closed record
+ * n - closed record with null
+ * o - open data
+ * p - open data with null
+ * q - nested record
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.2.update.aql
new file mode 100644
index 0000000..63959fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.2.update.aql
@@ -0,0 +1,14 @@
+/*
+ *  Description     : Test let clause
+ *  Expected Result : Success
+ *  Date            : 23rd July 2012
+ */
+
+/*
+ * m - closed record
+ * n - closed record with null
+ * o - open data
+ * p - open data with null
+ * q - nested record
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.3.query.aql
new file mode 100644
index 0000000..9bfe510
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let24/let24.3.query.aql
@@ -0,0 +1,20 @@
+/*
+ *  Description     : Test let clause
+ *  Expected Result : Success
+ *  Date            : 23rd July 2012
+ */
+
+/*
+ * m - closed record
+ * n - closed record with null
+ * o - open data
+ * p - open data with null
+ * q - nested record
+ */
+
+let $m := {"name":"Holmes S","age":25,"sex":"M"}
+let $n := {"name":"Bob","age":35,"sex":null}
+let $o := {{"John",45,"M"}}
+let $p := {{"Optional data goes here",null}}
+let $q := { "id":1345,"test":{"name":"Federer","age":35},"foo":"foo" }
+return { "m":$m,"n":$n,"o":$o, "p":$p,"q":$q }
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.1.ddl.aql
new file mode 100644
index 0000000..045a9e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.2.update.aql
new file mode 100644
index 0000000..045a9e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.3.query.aql
new file mode 100644
index 0000000..e2b88da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let25/let25.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test let clause
+ * Expected Result : Success
+ * Date            : 23rd July 2012
+ */
+
+let $a := true or false
+let $b := (true or false) and not(false)
+return {"a":$a,"b":$b}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.1.ddl.aql
new file mode 100644
index 0000000..d571f25
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.1.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012
+ */
+
+/*
+ * Test let clause - let variable := relational expression
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.2.update.aql
new file mode 100644
index 0000000..4d411e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.3.query.aql
new file mode 100644
index 0000000..a8afffe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let26/let26.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012
+ */
+
+/*
+ * Test let clause - let variable := relational expression
+ */
+
+let $a := 10 > 9
+let $b := ((100 * 100)/10 -1999) > 3900
+let $c := true != false
+return {"a":$a,"b":$b,"c":$c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.1.ddl.aql
new file mode 100644
index 0000000..a964168
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.2.update.aql
new file mode 100644
index 0000000..a964168
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012 
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.3.query.aql
new file mode 100644
index 0000000..aa5872e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let27/let27.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     : Test let clause 
+ * Expected Result : Success 
+ * Date            : 23rd July 2012 
+ */
+
+// Bind arithmetic expressions to variable using let clause
+
+
+let $a := [(100+100),(100-100),(100 * 100),(100 / 100),(100 %10)] 
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.1.ddl.aql
new file mode 100644
index 0000000..c93c2df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause and floating point literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.2.update.aql
new file mode 100644
index 0000000..c93c2df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause and floating point literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.3.query.aql
new file mode 100644
index 0000000..2f1b7ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let28/let28.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     : Test let clause and floating point literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+let $a := [137.8932f,156f,.98781f, 436.219F,.89217F,16789F]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.1.ddl.aql
new file mode 100644
index 0000000..b7cb3db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause and double literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.2.update.aql
new file mode 100644
index 0000000..b7cb3db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test let clause and double literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.3.query.aql
new file mode 100644
index 0000000..55d6319
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let29/let29.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description     : Test let clause and double literals
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+let $a := [137.8932,.98781,436.219,.89217,-234.324]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.1.ddl.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.2.update.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.3.query.aql
new file mode 100644
index 0000000..eebc11f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let30/let30.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+// $a and $b are ordered lists with one Record each.
+
+let $a := [{"id":1234,"name":"John Doe","age":56,"salary":50000,"dept":"HR"}]
+let $b := [{"id":3424,"name":"Roger Sanders","age":46,"salary":60000,"dept":"Publishing"}]
+let $c := $a union $b
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.1.ddl.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.2.update.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.3.query.aql
new file mode 100644
index 0000000..84ac278
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let31/let31.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+// $a and $b hold one Record each.
+
+let $a := {"id":1234,"name":"John Doe","age":56,"salary":50000,"dept":"HR"}
+let $b := {"id":3424,"name":"Roger Sanders","age":46,"salary":60000,"dept":"Publishing"}
+let $c := $a union $b
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.1.ddl.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.2.update.aql
new file mode 100644
index 0000000..ee62af1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.3.query.aql
new file mode 100644
index 0000000..0881fde
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/let32/let32.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description     : Test union of two lists, bind each list to a variable
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+let $m := (for $a in [{"id":1234,"name":"John Doe","age":56,"salary":50000,"dept":"HR"}]
+return $a)
+let $n := (for $b in [{"id":3424,"name":"Roger Sanders","age":46,"salary":60000,"dept":"Publishing"}]
+return $b)
+return $m union $n
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.3.query.aql
new file mode 100644
index 0000000..a5aec23
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-01/order-by-01.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $a in ["two","four","six","eight","ten","twenty","undo"]
+order by $a desc
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.3.query.aql
new file mode 100644
index 0000000..4cc087c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-02/order-by-02.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $a in ["two","four","six","eight","ten","twenty","undo"]
+order by $a asc
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.3.query.aql
new file mode 100644
index 0000000..3792c74
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-03/order-by-03.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$b,"test"]) asc
+return string-concat([$b,"test"])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.3.query.aql
new file mode 100644
index 0000000..e7a209b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-04/order-by-04.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$b,"test"]) desc
+return string-concat([$b,"test"])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.3.query.aql
new file mode 100644
index 0000000..97816f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-05/order-by-05.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$b,""]) desc
+return string-concat([$b,""])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.3.query.aql
new file mode 100644
index 0000000..791af3a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-06/order-by-06.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$b,""]) asc
+return string-concat([$b,""])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.3.query.aql
new file mode 100644
index 0000000..1b22c06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-07/order-by-07.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat(["",$b]) desc
+return string-concat(["",$b])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.3.query.aql
new file mode 100644
index 0000000..6a823c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-08/order-by-08.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $b in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat(["",$b]) asc
+return string-concat(["",$b])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.3.query.aql
new file mode 100644
index 0000000..0df3a9e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-09/order-by-09.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $x in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$x,$x]) asc 
+return string-concat([$x,$x])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.3.query.aql
new file mode 100644
index 0000000..dd2d97e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-10/order-by-10.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+
+for $x in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+order by string-concat([$x,$x]) desc 
+return string-concat([$x,$x])
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.3.query.aql
new file mode 100644
index 0000000..5b79987
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-11/order-by-11.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $x in [1,3,4,5,2,3,33,55,43,12,34,45,67,66,89,0,-1,999]
+order by ($x+$x) asc
+return ($x+$x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.1.ddl.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.2.update.aql
new file mode 100644
index 0000000..72f702b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.3.query.aql
new file mode 100644
index 0000000..b620a05
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/order-by-12/order-by-12.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description     : Test order by clause of FLWOR
+ * Expected Result : Success
+ * Date            : 24th July 2012
+ */
+
+for $x in [[1,3,4],[5,2],[3,33,55],[43,12,34],[45,67],[66,89,0],[-1,999]]
+order by len($x)
+return { "x":$x,"len($x)":len($x) }
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.2.update.aql
new file mode 100644
index 0000000..a45e5e8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+// return string length
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.3.query.aql
new file mode 100644
index 0000000..a67b7f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-01/ret-01.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+// return string length
+
+
+for $x in ["ten","twenty","thirty","forty","fifty","sixty","seventy","ninety"]
+return string-length($x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.1.ddl.aql
new file mode 100644
index 0000000..837342d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.2.update.aql
new file mode 100644
index 0000000..837342d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.3.query.aql
new file mode 100644
index 0000000..6c0bfb4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-02/ret-02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  7th July 2012
+ */
+
+// Return a string
+
+
+for $x in [true]
+return "this is a test string"
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.1.ddl.aql
new file mode 100644
index 0000000..e61b354
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause 
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.2.update.aql
new file mode 100644
index 0000000..e61b354
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause 
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.3.query.aql
new file mode 100644
index 0000000..44cc1b8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-03/ret-03.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause 
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+for $x in [true]
+return (if(true) then "YES" else "NO") 
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.1.ddl.aql
new file mode 100644
index 0000000..d4a99b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.2.update.aql
new file mode 100644
index 0000000..d4a99b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.3.query.aql
new file mode 100644
index 0000000..6baaf9a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-04/ret-04.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Tes if expression then expression else expression in the return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+let $a := 12345
+return (if($a > 999) then "GREATER" else "LESSER") 
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.1.ddl.aql
new file mode 100644
index 0000000..8999781
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  For + Return within return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.2.update.aql
new file mode 100644
index 0000000..8999781
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  For + Return within return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.3.query.aql
new file mode 100644
index 0000000..c86a402
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-05/ret-05.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  For + Return within return clause
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+let $b := 12345
+return (for $a in [[1,2,3],[4,5,6,7],[8,9],[0,4,5],[6,7,1],[2,3,4],[5,6,7],[8,9,0]] return $a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.1.ddl.aql
new file mode 100644
index 0000000..be87866
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Return an un-ordered list
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.2.update.aql
new file mode 100644
index 0000000..be87866
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Return an un-ordered list
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.3.query.aql
new file mode 100644
index 0000000..b2b572b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-06/ret-06.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ *                  :  Return an un-ordered list
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+let $b := 12345
+return {{"Welcome","UCI","Anteater","DBH","ICS"}}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.3.query.aql
new file mode 100644
index 0000000..abd3893
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-07/ret-07.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+
+let $b := true
+return {}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.3.query.aql
new file mode 100644
index 0000000..d73584a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-08/ret-08.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+// for and return in return clause
+
+for $a in [1,2,3,4,5,6,7,8]
+return {"a":$a,"inner-for":(for $b in [11,22,33,44,55,66,77,88] return $b)}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.3.query.aql
new file mode 100644
index 0000000..121b6b8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-09/ret-09.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+// return a constant
+
+let $b:=true
+return 1
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.3.query.aql
new file mode 100644
index 0000000..12100ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-10/ret-10.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+// nested for and return within another for
+
+for $a in 
+    for $b in [1,2,3,4,5,6,7,8,9,0] return $b
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.3.query.aql
new file mode 100644
index 0000000..ad607c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-11/ret-11.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+for $a in [1,2,3,4,5,6,7,8,9] 
+return ($a + 1)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.3.query.aql
new file mode 100644
index 0000000..92f8aff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-12/ret-12.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+for $a in [1,2,3,4,5,6,7,8,9] 
+return ($a - 1)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.3.query.aql
new file mode 100644
index 0000000..54f6b1f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-13/ret-13.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+
+for $a in [1,2,3,4,5,6,7,8,9] 
+return ($a * 9)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.1.ddl.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.2.update.aql
new file mode 100644
index 0000000..b3b1c5a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.3.query.aql
new file mode 100644
index 0000000..baae79a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-14/ret-14.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  26th July 2012
+ */
+
+// Return record
+
+let $a := true
+return {"name":"John Doe", "age":26,"sex":"M","salary":50000,"dept":"HR"}
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.1.ddl.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.2.update.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.3.query.aql
new file mode 100644
index 0000000..ec64936
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-15/ret-15.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
+// Return  op1 and op2 or op3 and op4
+
+let $a := true
+let $b := false
+let $c := true
+let $d := false
+return ($a and $b or $c and $d)
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.1.ddl.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.2.update.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.3.query.aql
new file mode 100644
index 0000000..dd494e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-16/ret-16.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
+// Return arithmetic-expr1 and arithmetic-expr2 
+
+let $a := 100 + 100
+let $b := 13.4 * 14.97
+let $c := 9999 + 98677
+let $d := 34.67 / 5.324
+return (($a*$d) and ($b / $c))
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.1.ddl.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.2.update.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.3.query.aql
new file mode 100644
index 0000000..dd494e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-17/ret-17.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
+// Return arithmetic-expr1 and arithmetic-expr2 
+
+let $a := 100 + 100
+let $b := 13.4 * 14.97
+let $c := 9999 + 98677
+let $d := 34.67 / 5.324
+return (($a*$d) and ($b / $c))
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.1.ddl.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.2.update.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.3.query.aql
new file mode 100644
index 0000000..cf33381
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-18/ret-18.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
+// Return an item from the ordered list 
+
+let $a := [1,2,3,4,5,6,7]
+return $a[6]
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.1.ddl.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.2.update.aql
new file mode 100644
index 0000000..fbf1eae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.3.query.aql
new file mode 100644
index 0000000..8bd5918
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/flwor/ret-19/ret-19.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :  Test return clause of the FLWOR expression
+ * Expected Result  :  Success
+ * Date             :  30th July 2012
+ */
+
+// Return an item from the ordered list 
+
+let $a := [[1,2,3,4,5,6,7],[7,8,9,10]]
+return $a[0]
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1.aql
deleted file mode 100644
index 4409fec..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1.aql
+++ /dev/null
@@ -1,32 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-1_1.adm';
-
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.3.query.aql
new file mode 100644
index 0000000..bc6490d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_1/dblp-1_1.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1.aql
deleted file mode 100644
index 8deab14..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-1_2.1.1.adm';
-
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.1.ddl.aql
new file mode 100644
index 0000000..ee455cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.3.query.aql
new file mode 100644
index 0000000..e6a2e36
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse fuzzyjoin;
+
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.aql
deleted file mode 100644
index 8a492ae..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1.aql
+++ /dev/null
@@ -1,34 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-1_2.1.adm';
-
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.3.query.aql
new file mode 100644
index 0000000..e6a2e36
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse fuzzyjoin;
+
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.aql
deleted file mode 100644
index 68d26fe..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2.aql
+++ /dev/null
@@ -1,33 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-1_2.adm';
-
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $paperid := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paperid
-            order by count($paperid), $tokenGroupped
-            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.3.query.aql
new file mode 100644
index 0000000..aa6a746
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-1_2/dblp-1_2.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse fuzzyjoin;
+
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $paperid := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paperid
+            order by count($paperid), $tokenGroupped
+            return $tokenGroupped
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1.aql
deleted file mode 100644
index f499ba3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1.aql
+++ /dev/null
@@ -1,54 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2.1_5.3.1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGroupped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast*/ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP, 
-                                0,
-                                prefix-len-jaccard($lenDBLP, .5f))
-    order by $idDBLP
-    return {'id': $idDBLP, 'prefixToken': $prefixTokenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.1.ddl.aql
new file mode 100644
index 0000000..ee455cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.3.query.aql
new file mode 100644
index 0000000..70de806
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.3.query.aql
@@ -0,0 +1,32 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGroupped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast*/ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP, 
+                                0,
+                                prefix-len-jaccard($lenDBLP, .5f))
+    order by $idDBLP
+    return {'id': $idDBLP, 'prefixToken': $prefixTokenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2.aql
deleted file mode 100644
index ce8dae4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2.aql
+++ /dev/null
@@ -1,53 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type TOKENSRANKEDADMType as closed {
-  token: int32,
-  rank: int32
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) partitioned by key rank on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-load dataset TOKENSRANKEDADM 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/tokensranked.adm"),("format"="adm"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2.2.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked in dataset('TOKENSRANKEDADM')
-        where $tokenUnranked = /*+ bcast*/ $tokenRanked.token
-        order by $tokenRanked.rank
-        return $tokenRanked.rank
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP, 
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-    order by $idDBLP, $prefixTokenDBLP
-    return {'id': $idDBLP, 'prefixToken': $prefixTokenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.1.ddl.aql
new file mode 100644
index 0000000..3d9b507
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.1.ddl.aql
@@ -0,0 +1,22 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type TOKENSRANKEDADMType as closed {
+  token: int32,
+  rank: int32
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) primary key rank;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.2.update.aql
new file mode 100644
index 0000000..2c90d77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset TOKENSRANKEDADM 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/tokensranked.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.3.query.aql
new file mode 100644
index 0000000..03add70
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2.2/dblp-2.2.3.query.aql
@@ -0,0 +1,21 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked in dataset('TOKENSRANKEDADM')
+        where $tokenUnranked = /*+ bcast*/ $tokenRanked.token
+        order by $tokenRanked.rank
+        return $tokenRanked.rank
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP, 
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+    order by $idDBLP, $prefixTokenDBLP
+    return {'id': $idDBLP, 'prefixToken': $prefixTokenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1.aql
deleted file mode 100644
index 7328e60..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1.aql
+++ /dev/null
@@ -1,44 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $paperDBLP.id
-    return {'id': $paperDBLP.id, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.3.query.aql
new file mode 100644
index 0000000..977a2a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_1/dblp-2_1.3.query.aql
@@ -0,0 +1,22 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $paperDBLP.id
+    return {'id': $paperDBLP.id, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2.aql
deleted file mode 100644
index 5c5cc8e8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2.aql
+++ /dev/null
@@ -1,45 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_2.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $paperDBLP.id
-    return {'id': $paperDBLP.id, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.3.query.aql
new file mode 100644
index 0000000..275a4cf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_2/dblp-2_2.3.query.aql
@@ -0,0 +1,23 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $paperDBLP.id
+    return {'id': $paperDBLP.id, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3.aql
deleted file mode 100644
index 6ffb2d5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3.aql
+++ /dev/null
@@ -1,46 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_3.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.3.query.aql
new file mode 100644
index 0000000..8f75103
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_3/dblp-2_3.3.query.aql
@@ -0,0 +1,24 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4.aql
deleted file mode 100644
index 6a0a011..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4.aql
+++ /dev/null
@@ -1,47 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists  on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_4.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.3.query.aql
new file mode 100644
index 0000000..abb7736
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_4/dblp-2_4.3.query.aql
@@ -0,0 +1,25 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1.aql
deleted file mode 100644
index 7d3e144..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1.aql
+++ /dev/null
@@ -1,49 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_5.1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.2.update.aql
new file mode 100644
index 0000000..dc55d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.3.query.aql
new file mode 100644
index 0000000..1950989
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.3.query.aql
@@ -0,0 +1,27 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2.aql
deleted file mode 100644
index f69e98f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2.aql
+++ /dev/null
@@ -1,49 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_5.2.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast*/ $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.3.query.aql
new file mode 100644
index 0000000..f6b4832
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.3.query.aql
@@ -0,0 +1,27 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast*/ $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1.aql
deleted file mode 100644
index ec9726d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1.aql
+++ /dev/null
@@ -1,50 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_5.3.1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast*/ $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.1.ddl.aql
new file mode 100644
index 0000000..ee455cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.3.query.aql
new file mode 100644
index 0000000..6ea3207
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.3.query.aql
@@ -0,0 +1,28 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast*/ $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.aql
deleted file mode 100644
index a0b3011..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3.aql
+++ /dev/null
@@ -1,50 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_5.3.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */ 
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast*/ $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.3.query.aql
new file mode 100644
index 0000000..6ea3207
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.3.query.aql
@@ -0,0 +1,28 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */ 
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast*/ $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.aql
deleted file mode 100644
index 6c5e1ac..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5.aql
+++ /dev/null
@@ -1,48 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-2_5.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    order by $idDBLP
-    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.3.query.aql
new file mode 100644
index 0000000..81013bb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-2_5/dblp-2_5.3.query.aql
@@ -0,0 +1,26 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    order by $idDBLP
+    return {'id': $idDBLP, 'len': $lenDBLP, 'tokens': $tokensDBLP}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1.aql
deleted file mode 100644
index e871290..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1.aql
+++ /dev/null
@@ -1,94 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-3_1.1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperLeft in dataset('DBLP')
-    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
-    let $tokensLeft :=
-        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenLeft in subset-collection(
-                                $tokensLeft, 
-                                0,
-                                prefix-len-jaccard($lenLeft, .5f))
-
-    for $paperRight in dataset('DBLP')
-    let $lenRight := len(counthashed-word-tokens($paperRight.title))
-    let $tokensRight :=
-        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenRight in subset-collection(
-                                $tokensRight, 
-                                0,
-                                prefix-len-jaccard($lenRight, .5f))
-
-    where $prefixTokenLeft = $prefixTokenRight
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenLeft,
-                    $tokensLeft,
-                    $lenRight,
-                    $tokensRight,
-                    $prefixTokenLeft,
-                    .5f)
-    where $sim >= .5f and $paperLeft.id < $paperRight.id
-    /*+ hash */
-    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
-    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
-
-for $paperLeft in dataset('DBLP')
-for $paperRight in dataset('DBLP')
-where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
-order by $paperLeft.id, $paperRight.id
-return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.1.ddl.aql
new file mode 100644
index 0000000..d68b466e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.3.query.aql
new file mode 100644
index 0000000..039ed1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.3.query.aql
@@ -0,0 +1,72 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperLeft in dataset('DBLP')
+    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
+    let $tokensLeft :=
+        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenLeft in subset-collection(
+                                $tokensLeft, 
+                                0,
+                                prefix-len-jaccard($lenLeft, .5f))
+
+    for $paperRight in dataset('DBLP')
+    let $lenRight := len(counthashed-word-tokens($paperRight.title))
+    let $tokensRight :=
+        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenRight in subset-collection(
+                                $tokensRight, 
+                                0,
+                                prefix-len-jaccard($lenRight, .5f))
+
+    where $prefixTokenLeft = $prefixTokenRight
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenLeft,
+                    $tokensLeft,
+                    $lenRight,
+                    $tokensRight,
+                    $prefixTokenLeft,
+                    .5f)
+    where $sim >= .5f and $paperLeft.id < $paperRight.id
+    /*+ hash */
+    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
+    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
+
+for $paperLeft in dataset('DBLP')
+for $paperRight in dataset('DBLP')
+where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
+order by $paperLeft.id, $paperRight.id
+return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2.aql
deleted file mode 100644
index d1d65dc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2.aql
+++ /dev/null
@@ -1,94 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-3_1.2.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperLeft in dataset('DBLP')
-    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
-    let $tokensLeft :=
-        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenLeft in subset-collection(
-                                $tokensLeft, 
-                                0,
-                                prefix-len-jaccard($lenLeft, .5f))
-
-    for $paperRight in dataset('DBLP')
-    let $lenRight := len(counthashed-word-tokens($paperRight.title))
-    let $tokensRight :=
-        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenRight in subset-collection(
-                                $tokensRight, 
-                                0,
-                                prefix-len-jaccard($lenRight, .5f))
-
-    where $prefixTokenLeft = $prefixTokenRight
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenLeft,
-                    $tokensLeft,
-                    $lenRight,
-                    $tokensRight,
-                    $prefixTokenLeft,
-                    .5f)
-    where $sim >= .5f and $paperLeft.id < $paperRight.id
-    /*+ hash */
-    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
-    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
-
-for $paperLeft in dataset('DBLP')
-for $paperRight in dataset('DBLP')
-where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
-order by $paperLeft.id, $paperRight.id
-return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.1.ddl.aql
new file mode 100644
index 0000000..fc70544
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.1.ddl.aql
@@ -0,0 +1,15 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.3.query.aql
new file mode 100644
index 0000000..2c2d349
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.3.query.aql
@@ -0,0 +1,72 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperLeft in dataset('DBLP')
+    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
+    let $tokensLeft :=
+        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenLeft in subset-collection(
+                                $tokensLeft, 
+                                0,
+                                prefix-len-jaccard($lenLeft, .5f))
+
+    for $paperRight in dataset('DBLP')
+    let $lenRight := len(counthashed-word-tokens($paperRight.title))
+    let $tokensRight :=
+        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenRight in subset-collection(
+                                $tokensRight, 
+                                0,
+                                prefix-len-jaccard($lenRight, .5f))
+
+    where $prefixTokenLeft = $prefixTokenRight
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenLeft,
+                    $tokensLeft,
+                    $lenRight,
+                    $tokensRight,
+                    $prefixTokenLeft,
+                    .5f)
+    where $sim >= .5f and $paperLeft.id < $paperRight.id
+    /*+ hash */
+    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
+    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
+
+for $paperLeft in dataset('DBLP')
+for $paperRight in dataset('DBLP')
+where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
+order by $paperLeft.id, $paperRight.id
+return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.aql
deleted file mode 100644
index eea456e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1.aql
+++ /dev/null
@@ -1,91 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-3_1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $paperLeft in dataset('DBLP')
-for $paperRight in dataset('DBLP')
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperLeft in dataset('DBLP')
-    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
-    let $tokensLeft :=
-        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenLeft in subset-collection(
-                                $tokensLeft, 
-                                0,
-                                prefix-len-jaccard($lenLeft, .5f))
-
-    for $paperRight in dataset('DBLP')
-    let $lenRight := len(counthashed-word-tokens($paperRight.title))
-    let $tokensRight :=
-        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenRight in subset-collection(
-                                $tokensRight, 
-                                0,
-                                prefix-len-jaccard($lenRight, .5f))
-
-    where $prefixTokenLeft = $prefixTokenRight
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenLeft,
-                    $tokensLeft,
-                    $lenRight,
-                    $tokensRight,
-                    $prefixTokenLeft,
-                    .5f)
-    where $sim >= .5f and $paperLeft.id < $paperRight.id
-    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
-    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
-
-where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
-order by $paperLeft.id, $paperRight.id
-return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.1.ddl.aql
new file mode 100644
index 0000000..c0c9897
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.3.query.aql
new file mode 100644
index 0000000..0d1976b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-3_1/dblp-3_1.3.query.aql
@@ -0,0 +1,69 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $paperLeft in dataset('DBLP')
+for $paperRight in dataset('DBLP')
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperLeft in dataset('DBLP')
+    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
+    let $tokensLeft :=
+        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenLeft in subset-collection(
+                                $tokensLeft, 
+                                0,
+                                prefix-len-jaccard($lenLeft, .5f))
+
+    for $paperRight in dataset('DBLP')
+    let $lenRight := len(counthashed-word-tokens($paperRight.title))
+    let $tokensRight :=
+        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenRight in subset-collection(
+                                $tokensRight, 
+                                0,
+                                prefix-len-jaccard($lenRight, .5f))
+
+    where $prefixTokenLeft = $prefixTokenRight
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenLeft,
+                    $tokensLeft,
+                    $lenRight,
+                    $tokensRight,
+                    $prefixTokenLeft,
+                    .5f)
+    where $sim >= .5f and $paperLeft.id < $paperRight.id
+    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
+    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
+
+where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
+order by $paperLeft.id, $paperRight.id
+return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1.aql
deleted file mode 100644
index 089fc47..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1.aql
+++ /dev/null
@@ -1,29 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP from nc1:'data/pub-small/dblp-small-id.txt' delimited by ':';
-
-write output to nc1:'rttest/fuzzyjoin_dblp-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $dblp in dataset('DBLP')
-for $dblp2 in dataset('DBLP')
-where $dblp.title ~= $dblp2.title and $dblp.id < $dblp2.id
-order by $dblp.id, $dblp2.id
-return {'dblp': $dblp, 'dblp2': $dblp2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..ee455cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..533e8a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..a3c0375
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $dblp in dataset('DBLP')
+for $dblp2 in dataset('DBLP')
+where word-tokens($dblp.title) ~= word-tokens($dblp2.title) and $dblp.id < $dblp2.id
+order by $dblp.id, $dblp2.id
+return {'dblp': $dblp, 'dblp2': $dblp2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..a62b5a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Tests that a proper error messags is returned for this scenario.
+ *                  Since we cannot statically know the type of the field 'title', the FuzzyEqRule
+ *                  cannot auto-inject a tokenizer, and hence we expect an error saying that we cannot
+ *                  scan over a string as if it were a collection.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..a760070
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Tests that a proper error messags is returned for this scenario.
+ *                  Since we cannot statically know the type of the field 'title', the FuzzyEqRule
+ *                  cannot auto-inject a tokenizer, and hence we expect an error saying that we cannot
+ *                  scan over a string as if it were a collection.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..19a0294
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.3.query.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Tests that a proper error messags is returned for this scenario.
+ *                  Since we cannot statically know the type of the field 'title', the FuzzyEqRule
+ *                  cannot auto-inject a tokenizer, and hence we expect an error saying that we cannot
+ *                  scan over a string as if it were a collection.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $dblp in dataset('DBLP')
+for $dblp2 in dataset('DBLP')
+where $dblp.title ~= $dblp2.title and $dblp.id < $dblp2.id
+order by $dblp.id, $dblp2.id
+return {'dblp': $dblp, 'dblp2': $dblp2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1.aql
deleted file mode 100644
index a5bb9cd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1.aql
+++ /dev/null
@@ -1,93 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.2.update.aql
new file mode 100644
index 0000000..47d8420
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.3.query.aql
new file mode 100644
index 0000000..2d3a1f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.3.query.aql
@@ -0,0 +1,58 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2.aql
deleted file mode 100644
index fab6877..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2.aql
+++ /dev/null
@@ -1,95 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_2.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.2.update.aql
new file mode 100644
index 0000000..47d8420
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.3.query.aql
new file mode 100644
index 0000000..8847306
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.3.query.aql
@@ -0,0 +1,60 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3.aql
deleted file mode 100644
index 34654e3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3.aql
+++ /dev/null
@@ -1,98 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_3.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.3.query.aql
new file mode 100644
index 0000000..4438e50
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.3.query.aql
@@ -0,0 +1,62 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4.aql
deleted file mode 100644
index f2ad20d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4.aql
+++ /dev/null
@@ -1,99 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_4.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len($tokensUnrankedDBLP),
-                    $tokensDBLP,
-                    len($tokensUnrankedCSX),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.3.query.aql
new file mode 100644
index 0000000..e2fc8d1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.3.query.aql
@@ -0,0 +1,64 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len($tokensUnrankedDBLP),
+                    $tokensDBLP,
+                    len($tokensUnrankedCSX),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1.aql
deleted file mode 100644
index c5d4b73..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1.aql
+++ /dev/null
@@ -1,103 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_5.1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.3.query.aql
new file mode 100644
index 0000000..d6e7183
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.3.query.aql
@@ -0,0 +1,68 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2.aql
deleted file mode 100644
index b272e34..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2.aql
+++ /dev/null
@@ -1,104 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_5.2.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.3.query.aql
new file mode 100644
index 0000000..f379cf4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.3.query.aql
@@ -0,0 +1,69 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1.aql
deleted file mode 100644
index fd58328..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1.aql
+++ /dev/null
@@ -1,107 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as closed {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_5.3.1.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.1.ddl.aql
new file mode 100644
index 0000000..7dc7297
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.3.query.aql
new file mode 100644
index 0000000..de3c8e8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.3.query.aql
@@ -0,0 +1,71 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.aql
deleted file mode 100644
index a52183f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3.aql
+++ /dev/null
@@ -1,106 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_5.3.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.1.ddl.aql
new file mode 100644
index 0000000..a96dd30
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.1.ddl.aql
@@ -0,0 +1,26 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.3.query.aql
new file mode 100644
index 0000000..803db8f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.3.query.aql
@@ -0,0 +1,71 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.aql
deleted file mode 100644
index 7ccdc0c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5.aql
+++ /dev/null
@@ -1,101 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-2_5.adm';
-
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    order by $idDBLP, $idCSX
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.3.query.aql
new file mode 100644
index 0000000..60ea2ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.3.query.aql
@@ -0,0 +1,66 @@
+use dataverse fuzzyjoin;
+
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    order by $idDBLP, $idCSX
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1.aql
deleted file mode 100644
index b22d355..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1.aql
+++ /dev/null
@@ -1,103 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.1.ddl.aql
new file mode 100644
index 0000000..a96dd30
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.1.ddl.aql
@@ -0,0 +1,26 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.3.query.aql
new file mode 100644
index 0000000..8757f02
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.3.query.aql
@@ -0,0 +1,67 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2.aql
deleted file mode 100644
index 5dc2cad..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2.aql
+++ /dev/null
@@ -1,104 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_2.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.3.query.aql
new file mode 100644
index 0000000..7d40888
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.3.query.aql
@@ -0,0 +1,69 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $paperDBLP.id, $idCSX := $paperCSX.id, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3.aql
deleted file mode 100644
index 0ce00ca..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3.aql
+++ /dev/null
@@ -1,106 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_3.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensDBLP :=
-        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensCSX :=
-        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len(counthashed-word-tokens($paperDBLP.title)),
-                    $tokensDBLP,
-                    len(counthashed-word-tokens($paperCSX.title)),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.3.query.aql
new file mode 100644
index 0000000..85ace1c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.3.query.aql
@@ -0,0 +1,71 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensDBLP :=
+        for $tokenUnranked in counthashed-word-tokens($paperDBLP.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensCSX :=
+        for $tokenUnranked in counthashed-word-tokens($paperCSX.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len(counthashed-word-tokens($paperDBLP.title)),
+                    $tokensDBLP,
+                    len(counthashed-word-tokens($paperCSX.title)),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4.aql
deleted file mode 100644
index ac683c8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4.aql
+++ /dev/null
@@ -1,108 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_4.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    len($tokensUnrankedDBLP),
-                    $tokensDBLP,
-                    len($tokensUnrankedCSX),
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.3.query.aql
new file mode 100644
index 0000000..3574534
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.3.query.aql
@@ -0,0 +1,73 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    len($tokensUnrankedDBLP),
+                    $tokensDBLP,
+                    len($tokensUnrankedCSX),
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1.aql
deleted file mode 100644
index fd6ad95..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1.aql
+++ /dev/null
@@ -1,112 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.3.query.aql
new file mode 100644
index 0000000..6a6dc0c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.3.query.aql
@@ -0,0 +1,77 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2.aql
deleted file mode 100644
index cc49092..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2.aql
+++ /dev/null
@@ -1,113 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.2.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.3.query.aql
new file mode 100644
index 0000000..5359b9f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.3.query.aql
@@ -0,0 +1,78 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1.aql
deleted file mode 100644
index 66fb57e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1.aql
+++ /dev/null
@@ -1,115 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.3.1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.3.query.aql
new file mode 100644
index 0000000..f0dbf23
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.3.query.aql
@@ -0,0 +1,80 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.aql
deleted file mode 100644
index 93545b3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3.aql
+++ /dev/null
@@ -1,115 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.3.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGroupped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.3.query.aql
new file mode 100644
index 0000000..40aba87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.3.query.aql
@@ -0,0 +1,80 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGroupped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1.aql
deleted file mode 100644
index 9782508..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1.aql
+++ /dev/null
@@ -1,119 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.4.1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $paperCSX in dataset('CSX')
-for $paperDBLPridpair in
-for $paperDBLP in dataset('DBLP')
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-where $ridpair.idDBLP = $paperDBLP.id
-return {'idDBLP': $paperDBLP.id, 'idCSX': $ridpair.idCSX, 'paperDBLP': $paperDBLP, 'sim': $ridpair.sim}
-
-where $paperDBLPridpair.idCSX = $paperCSX.id
-order by $paperDBLPridpair.idDBLP, $paperDBLPridpair.idCSX
-return {'dblp': $paperDBLPridpair.paperDBLP, 'csx': $paperCSX, 'sim': $paperDBLPridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.2.update.aql
new file mode 100644
index 0000000..50972b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.2.update.aql
@@ -0,0 +1,11 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.3.query.aql
new file mode 100644
index 0000000..103af68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.3.query.aql
@@ -0,0 +1,84 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $paperCSX in dataset('CSX')
+for $paperDBLPridpair in
+for $paperDBLP in dataset('DBLP')
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+where $ridpair.idDBLP = $paperDBLP.id
+return {'idDBLP': $paperDBLP.id, 'idCSX': $ridpair.idCSX, 'paperDBLP': $paperDBLP, 'sim': $ridpair.sim}
+
+where $paperDBLPridpair.idCSX = $paperCSX.id
+order by $paperDBLPridpair.idDBLP, $paperDBLPridpair.idCSX
+return {'dblp': $paperDBLPridpair.paperDBLP, 'csx': $paperCSX, 'sim': $paperDBLPridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.aql
deleted file mode 100644
index cb5b8ba..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4.aql
+++ /dev/null
@@ -1,120 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.4.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $paperCSX in dataset('CSX')
-for $paperDBLPridpair in
-for $paperDBLP in dataset('DBLP')
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            /*+ hash */
-            group by $tokenGrouped := $token with $id
-            /*+ inmem 1 302 */
-            order by count($id), $tokenGrouped
-            return $tokenGrouped
-        where $tokenUnranked = /*+ bcast */ $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    /*+ hash*/ 
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-where $ridpair.idDBLP = $paperDBLP.id
-return {'idDBLP': $paperDBLP.id, 'paperDBLP': $paperDBLP, 'idCSX': $ridpair.idCSX, 'sim': $ridpair.sim}
-
-where $paperDBLPridpair.idCSX = $paperCSX.id
-// order by $paperDBLPridpair.idDBLP, $paperDBLPridpair.idCSX
-order by $paperDBLPridpair.paperDBLP.id, $paperDBLPridpair.idCSX
-return {'dblp': $paperDBLPridpair.paperDBLP, 'csx': $paperCSX, 'sim': $paperDBLPridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.2.update.aql
new file mode 100644
index 0000000..50972b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.2.update.aql
@@ -0,0 +1,11 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.3.query.aql
new file mode 100644
index 0000000..2199203
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.3.query.aql
@@ -0,0 +1,85 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $paperCSX in dataset('CSX')
+for $paperDBLPridpair in
+for $paperDBLP in dataset('DBLP')
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            /*+ hash */
+            group by $tokenGrouped := $token with $id
+            /*+ inmem 1 302 */
+            order by count($id), $tokenGrouped
+            return $tokenGrouped
+        where $tokenUnranked = /*+ bcast */ $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    /*+ hash*/ 
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+where $ridpair.idDBLP = $paperDBLP.id
+return {'idDBLP': $paperDBLP.id, 'paperDBLP': $paperDBLP, 'idCSX': $ridpair.idCSX, 'sim': $ridpair.sim}
+
+where $paperDBLPridpair.idCSX = $paperCSX.id
+// order by $paperDBLPridpair.idDBLP, $paperDBLPridpair.idCSX
+order by $paperDBLPridpair.paperDBLP.id, $paperDBLPridpair.idCSX
+return {'dblp': $paperDBLPridpair.paperDBLP, 'csx': $paperCSX, 'sim': $paperDBLPridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.aql
deleted file mode 100644
index 0f1f2fe..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5.aql
+++ /dev/null
@@ -1,111 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-load dataset CSX
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-3_5.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperDBLP in dataset('DBLP')
-    let $idDBLP := $paperDBLP.id
-    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
-    let $lenDBLP := len($tokensUnrankedDBLP)
-    let $tokensDBLP :=
-        for $tokenUnranked in $tokensUnrankedDBLP
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenDBLP in subset-collection(
-                                $tokensDBLP,
-                                0,
-                                prefix-len-jaccard(len($tokensDBLP), .5f))
-
-    for $paperCSX in dataset('CSX')
-    let $idCSX := $paperCSX.id
-    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
-    let $lenCSX := len($tokensUnrankedCSX)
-    let $tokensCSX :=
-        for $tokenUnranked in $tokensUnrankedCSX
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            let $id := $paper.id
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $id
-            order by count($id), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenCSX in subset-collection(
-                                $tokensCSX,
-                                0,
-                                prefix-len-jaccard(len($tokensCSX), .5f))
-
-    where $prefixTokenDBLP = $prefixTokenCSX
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenDBLP,
-                    $tokensDBLP,
-                    $lenCSX,
-                    $tokensCSX,
-                    $prefixTokenDBLP,
-                    .5f)
-    where $sim >= .5f
-    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
-    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
-
-for $paperDBLP in dataset('DBLP')
-for $paperCSX in dataset('CSX')
-where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
-order by $paperDBLP.id, $paperCSX.id
-return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.3.query.aql
new file mode 100644
index 0000000..44807b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.3.query.aql
@@ -0,0 +1,75 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperDBLP in dataset('DBLP')
+    let $idDBLP := $paperDBLP.id
+    let $tokensUnrankedDBLP := counthashed-word-tokens($paperDBLP.title)
+    let $lenDBLP := len($tokensUnrankedDBLP)
+    let $tokensDBLP :=
+        for $tokenUnranked in $tokensUnrankedDBLP
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenDBLP in subset-collection(
+                                $tokensDBLP,
+                                0,
+                                prefix-len-jaccard(len($tokensDBLP), .5f))
+
+    for $paperCSX in dataset('CSX')
+    let $idCSX := $paperCSX.id
+    let $tokensUnrankedCSX := counthashed-word-tokens($paperCSX.title)
+    let $lenCSX := len($tokensUnrankedCSX)
+    let $tokensCSX :=
+        for $tokenUnranked in $tokensUnrankedCSX
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            let $id := $paper.id
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $id
+            order by count($id), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenCSX in subset-collection(
+                                $tokensCSX,
+                                0,
+                                prefix-len-jaccard(len($tokensCSX), .5f))
+
+    where $prefixTokenDBLP = $prefixTokenCSX
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenDBLP,
+                    $tokensDBLP,
+                    $lenCSX,
+                    $tokensCSX,
+                    $prefixTokenDBLP,
+                    .5f)
+    where $sim >= .5f
+    group by $idDBLP := $idDBLP, $idCSX := $idCSX, $sim := $sim with $sim
+    return {'idDBLP': $idDBLP, 'idCSX': $idCSX, 'sim': $sim[0]}
+
+for $paperDBLP in dataset('DBLP')
+for $paperCSX in dataset('CSX')
+where $ridpair.idDBLP = $paperDBLP.id and $ridpair.idCSX = $paperCSX.id
+order by $paperDBLP.id, $paperCSX.id
+return {'dblp': $paperDBLP, 'csx': $paperCSX, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1.aql
deleted file mode 100644
index ead8e81..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP from nc1:'data/pub-small/dblp-small-id.txt' delimited by ':';
-load dataset CSX from nc1:'data/pub-small/csx-small-id.txt' delimited by ':';
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $i in dataset('DBLP')
-for $j in dataset('CSX')
-where $i.title ~= $j.title
-order by $i.id, $j.id
-return {'dblp': $i, 'csx': $j}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..3103817
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $i in dataset('DBLP')
+for $j in dataset('CSX')
+where word-tokens($i.title) ~= word-tokens($j.title)
+order by $i.id, $j.id
+return {'dblp': $i, 'csx': $j}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2.aql
deleted file mode 100644
index 611fd29..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP from nc1:'data/pub-small/dblp-small-id.txt' delimited by ':';
-load dataset CSX from nc1:'data/pub-small/csx-small-id.txt' delimited by ':';
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $csx in dataset('CSX')
-for $dblp in dataset('DBLP')
-where $dblp.title ~= $csx.title
-order by $dblp.id, $csx.id
-return {'dblp': $dblp, 'csx': $csx}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..2335129
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+
+set simthreshold '.5f';
+
+for $csx in dataset('CSX')
+for $dblp in dataset('DBLP')
+where word-tokens($dblp.title) ~= word-tokens($csx.title)
+order by $dblp.id, $csx.id
+return {'dblp': $dblp, 'csx': $csx}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3.aql
deleted file mode 100644
index e6dc1ed..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP from nc1:'data/pub-small/dblp-small-id.txt' delimited by ':';
-load dataset CSX from nc1:'data/pub-small/csx-small-id.txt' delimited by ':';
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-aqlplus_3.adm';
-
-set simthreshold '.5f';
-
-for $dblp in dataset('DBLP')
-for $csx in dataset('CSX')
-where $csx.title ~= $dblp.title
-order by $dblp.id, $csx.id
-return {'dblp': $dblp, 'csx': $csx}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.3.query.aql
new file mode 100644
index 0000000..de109a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $dblp in dataset('DBLP')
+for $csx in dataset('CSX')
+where word-tokens($csx.title) ~= word-tokens($dblp.title)
+order by $dblp.id, $csx.id
+return {'dblp': $dblp, 'csx': $csx}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1.aql
deleted file mode 100644
index e1b53d3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1.aql
+++ /dev/null
@@ -1,40 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create type CSXType as open {
-  id: int32, 
-  csxid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-create dataset CSX(CSXType) partitioned by key id on group1;
-
-load dataset DBLP from nc1:'data/pub-small/dblp-small-id.txt' delimited by ':';
-load dataset CSX from nc1:'data/pub-small/csx-small-id.txt' delimited by ':';
-
-write output to nc1:'rttest/fuzzyjoin_dblp-csx-dblp-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $dblp in dataset('DBLP')
-for $csx in dataset('CSX')
-for $dblp2 in dataset('DBLP')
-where $dblp.title ~= $csx.title and $csx.authors ~= $dblp2.authors
-order by $dblp.id, $csx.id, $dblp2.id
-return {'dblp': $dblp, 'csx': $csx, 'dblp2': $dblp2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..e690c64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as open {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..916bd56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..588f541
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $dblp in dataset('DBLP')
+for $csx in dataset('CSX')
+for $dblp2 in dataset('DBLP')
+where word-tokens($dblp.title) ~= word-tokens($csx.title) and word-tokens($csx.authors) ~= word-tokens($dblp2.authors)
+order by $dblp.id, $csx.id, $dblp2.id
+return {'dblp': $dblp, 'csx': $csx, 'dblp2': $dblp2}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1.aql
deleted file mode 100644
index a235756..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1.aql
+++ /dev/null
@@ -1,29 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) partitioned by key id on group1;
-
-load dataset DBLP
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:'rttest/fuzzyjoin_dblp-lookup_1.adm';
-
-for $paper in dataset('DBLP')
-where $paper.id = 1
-return $paper
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.1.ddl.aql
new file mode 100644
index 0000000..239399f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.2.update.aql
new file mode 100644
index 0000000..308608e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset DBLP
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.3.query.aql
new file mode 100644
index 0000000..3557162
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+for $paper in dataset('DBLP')
+where $paper.id = 1
+return $paper
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1.aql
deleted file mode 100644
index 68800dd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1.aql
+++ /dev/null
@@ -1,166 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create external dataset DBLP(DBLPType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:'rttest/fuzzyjoin_dblp-splits-3_1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $paperLeft in dataset('DBLP')
-    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
-    let $tokensLeft :=
-        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefix_tokenLeft in subset-collection(
-                                $tokensLeft, 
-                                0,
-                                prefix-len-jaccard(len($tokensLeft), .5f))
-
-    for $paperRight in dataset('DBLP')
-    let $lenRight := len(counthashed-word-tokens($paperRight.title))
-    let $tokensRight :=
-        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $paper in dataset('DBLP')
-            for $token in counthashed-word-tokens($paper.title)
-            group by $tokenGroupped := $token with $paper
-            order by count($paper), $tokenGroupped
-            return $tokenGroupped
-        where $tokenUnranked = $tokenRanked
-        order by $i
-        return $i
-    for $prefix_tokenRight in subset-collection(
-                                $tokensRight, 
-                                0,
-                                prefix-len-jaccard(len($tokensRight), .5f))
-
-    where $prefix_tokenLeft = $prefix_tokenRight
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenLeft,
-                    $tokensLeft,
-                    $lenRight,
-                    $tokensRight,
-                    $prefix_tokenLeft,
-                    .5f)
-    where $sim >= .5f and $paperLeft.id < $paperRight.id
-    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
-    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
-
-for $paperLeft in dataset('DBLP')
-for $paperRight in dataset('DBLP')
-where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
-order by $paperLeft.id, $paperRight.id
-return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
-
-/*
-edu.uci.ics.aqua.common.exceptions.AquaException: Attempting to construct a nested plan with 3 operator descriptors. Currently, nested plans can only consist in linear pipelines of Asterix micro operators.
-	at edu.uci.ics.aqua.algebra.operators.physical.AbstractGroupByPhysicalOperator.buildPipelineWithProjection(AbstractGroupByPhysicalOperator.java:47)
-	at edu.uci.ics.aqua.algebra.operators.physical.AbstractGroupByPhysicalOperator.compileSubplans(AbstractGroupByPhysicalOperator.java:29)
-	at edu.uci.ics.aqua.algebra.operators.physical.PreSortedGroupByPOperator.contributeRuntimeOperator(PreSortedGroupByPOperator.java:133)
-	at edu.uci.ics.aqua.algebra.operators.logical.AbstractLogicalOperator.contributeRuntimeOperator(AbstractLogicalOperator.java:208)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:52)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
-	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compilePlan(PlanCompiler.java:30)
-	at edu.uci.ics.aqua.api.HeuristicCompilerFactoryBuilder$1$1.createJob(HeuristicCompilerFactoryBuilder.java:64)
-	at edu.uci.ics.asterix.api.common.APIFramework.compileQuery(APIFramework.java:323)
-	at edu.uci.ics.asterix.api.java.AsterixJavaClient.compile(AsterixJavaClient.java:71)
-	at edu.uci.ics.asterix.test.runtime.functions.RuntimeFunctionsTest.test(RuntimeFunctionsTest.java:150)
-	at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)
-	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
-	at java.lang.reflect.Method.invoke(Method.java:597)
-	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
-	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
-	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
-	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
-	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
-	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
-	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
-	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
-	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
-	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
-	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
-	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
-	at org.junit.runners.Suite.runChild(Suite.java:128)
-	at org.junit.runners.Suite.runChild(Suite.java:24)
-	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
-	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
-	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
-	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
-	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
-	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
-	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
-	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
-	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
-	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
-	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
-	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
-	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
-	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
-
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.1.ddl.aql
new file mode 100644
index 0000000..d925752
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create external dataset DBLP(DBLPType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.2.update.aql
new file mode 100644
index 0000000..a3395b1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+create external dataset DBLP(DBLPType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.3.query.aql
new file mode 100644
index 0000000..5a9bac4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/dblp-splits-3_1/dblp-splits-3_1.3.query.aql
@@ -0,0 +1,145 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $paperLeft in dataset('DBLP')
+    let $lenLeft := len(counthashed-word-tokens($paperLeft.title))
+    let $tokensLeft :=
+        for $tokenUnranked in counthashed-word-tokens($paperLeft.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefix_tokenLeft in subset-collection(
+                                $tokensLeft, 
+                                0,
+                                prefix-len-jaccard(len($tokensLeft), .5f))
+
+    for $paperRight in dataset('DBLP')
+    let $lenRight := len(counthashed-word-tokens($paperRight.title))
+    let $tokensRight :=
+        for $tokenUnranked in counthashed-word-tokens($paperRight.title)
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $paper in dataset('DBLP')
+            for $token in counthashed-word-tokens($paper.title)
+            group by $tokenGroupped := $token with $paper
+            order by count($paper), $tokenGroupped
+            return $tokenGroupped
+        where $tokenUnranked = $tokenRanked
+        order by $i
+        return $i
+    for $prefix_tokenRight in subset-collection(
+                                $tokensRight, 
+                                0,
+                                prefix-len-jaccard(len($tokensRight), .5f))
+
+    where $prefix_tokenLeft = $prefix_tokenRight
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenLeft,
+                    $tokensLeft,
+                    $lenRight,
+                    $tokensRight,
+                    $prefix_tokenLeft,
+                    .5f)
+    where $sim >= .5f and $paperLeft.id < $paperRight.id
+    group by $idLeft := $paperLeft.id, $idRight := $paperRight.id with $sim
+    return {'idLeft': $idLeft, 'idRight': $idRight, 'sim': $sim[0]}
+
+for $paperLeft in dataset('DBLP')
+for $paperRight in dataset('DBLP')
+where $ridpair.idLeft = $paperLeft.id and $ridpair.idRight = $paperRight.id
+order by $paperLeft.id, $paperRight.id
+return {'left': $paperLeft, 'right': $paperRight, 'sim': $ridpair.sim}
+
+/*
+edu.uci.ics.aqua.common.exceptions.AquaException: Attempting to construct a nested plan with 3 operator descriptors. Currently, nested plans can only consist in linear pipelines of Asterix micro operators.
+	at edu.uci.ics.aqua.algebra.operators.physical.AbstractGroupByPhysicalOperator.buildPipelineWithProjection(AbstractGroupByPhysicalOperator.java:47)
+	at edu.uci.ics.aqua.algebra.operators.physical.AbstractGroupByPhysicalOperator.compileSubplans(AbstractGroupByPhysicalOperator.java:29)
+	at edu.uci.ics.aqua.algebra.operators.physical.PreSortedGroupByPOperator.contributeRuntimeOperator(PreSortedGroupByPOperator.java:133)
+	at edu.uci.ics.aqua.algebra.operators.logical.AbstractLogicalOperator.contributeRuntimeOperator(AbstractLogicalOperator.java:208)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:52)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compileOpRef(PlanCompiler.java:44)
+	at edu.uci.ics.aqua.jobgen.impl.PlanCompiler.compilePlan(PlanCompiler.java:30)
+	at edu.uci.ics.aqua.api.HeuristicCompilerFactoryBuilder$1$1.createJob(HeuristicCompilerFactoryBuilder.java:64)
+	at edu.uci.ics.asterix.api.common.APIFramework.compileQuery(APIFramework.java:323)
+	at edu.uci.ics.asterix.api.java.AsterixJavaClient.compile(AsterixJavaClient.java:71)
+	at edu.uci.ics.asterix.test.runtime.functions.RuntimeFunctionsTest.test(RuntimeFunctionsTest.java:150)
+	at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)
+	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
+	at java.lang.reflect.Method.invoke(Method.java:597)
+	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
+	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
+	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
+	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
+	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
+	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
+	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
+	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
+	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
+	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
+	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
+	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
+	at org.junit.runners.Suite.runChild(Suite.java:128)
+	at org.junit.runners.Suite.runChild(Suite.java:24)
+	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
+	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
+	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
+	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
+	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
+	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
+	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
+	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
+	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
+	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
+	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
+	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
+	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
+	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
+
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1.aql
deleted file mode 100644
index 6093823..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1.aql
+++ /dev/null
@@ -1,44 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-
-create type AddressType as closed {
- street: string,
- city: string,
- zip: string,
- latlong: point
-}
-
-create type UserType as open{
- name: string,
- interests: <string>,
- address: AddressType,
- member_of: <
-  {
-    sig_id: int32,
-    chapter_name: string,
-    member_since: date
-  }
->
-}
-
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset User(UserType)
- partitioned by key name on group1;
-load dataset User from nc1:'data/events/tiny/user.adm';
-
-write output to nc1:'rttest/fuzzyjoin_events-users-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('User')
-let $similar_users :=
- for $similar_user in dataset('User')
- where $user.interests ~= $similar_user.interests
- order by $similar_user.name 
- return { "user_name": $similar_user.name }
-order by $user.name 
-return { "user_name": $user.name, "similar_users": $similar_users }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..89d2e94
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.1.ddl.aql
@@ -0,0 +1,26 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type AddressType as closed {
+ street: string,
+ city: string,
+ zip: string,
+ latlong: point
+}
+
+create type UserType as open{
+ name: string,
+ interests: {{string}},
+ address: AddressType,
+ member_of: {{
+  {
+    sig_id: int32,
+    chapter_name: string,
+    member_since: date
+  }
+}}
+}
+
+create dataset User(UserType) primary key name;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..b87e8a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset User
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/events/tiny/user.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..43b0659
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('User')
+let $similar_users :=
+ for $similar_user in dataset('User')
+ where $user.interests ~= $similar_user.interests
+ order by $similar_user.name 
+ return { "user_name": $similar_user.name }
+order by $user.name 
+return { "user_name": $user.name, "similar_users": $similar_users }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1.aql
deleted file mode 100644
index 7e4ab38..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-int-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $user2 in dataset('Users')
-where $user.interests ~= $user2.interests and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..b0bd349
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $user2 in dataset('Users')
+where $user.interests ~= $user2.interests and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2.aql
deleted file mode 100644
index d1e49a0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-int-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $user2 in dataset('Users')
-for $user in dataset('Users')
-where $user.interests ~= $user2.interests and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..54e49ac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user2 in dataset('Users')
+for $user in dataset('Users')
+where $user.interests ~= $user2.interests and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3.aql
deleted file mode 100644
index bf15bf6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-int-aqlplus_3.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $user2 in dataset('Users')
-where $user2.interests ~= $user.interests and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.2.update.aql
new file mode 100644
index 0000000..88a8e4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.2.update.aql
@@ -0,0 +1,8 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.3.query.aql
new file mode 100644
index 0000000..2017f1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $user2 in dataset('Users')
+where $user2.interests ~= $user.interests and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1.aql
deleted file mode 100644
index ccdd07f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-lot-aqlplus_1.1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $user2 in dataset('Users')
-where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
-let $sim := similarity-jaccard($user.lottery_numbers, $user2.lottery_numbers)
-order by $sim desc, $user.uid, $user2.uid limit 3
-return { 'user': $user, 'user2': $user2, 'sim': $sim }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.3.query.aql
new file mode 100644
index 0000000..6bf25bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $user2 in dataset('Users')
+where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
+let $sim := similarity-jaccard($user.lottery_numbers, $user2.lottery_numbers)
+order by $sim desc, $user.uid, $user2.uid limit 3
+return { 'user': $user, 'user2': $user2, 'sim': $sim }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.aql
deleted file mode 100644
index 3b4a6fe..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-lot-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $user2 in dataset('Users')
-where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..789f19c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $user2 in dataset('Users')
+where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2.aql
deleted file mode 100644
index 3e970c7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-lot-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $user2 in dataset('Users')
-for $user in dataset('Users')
-where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..13bcac3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user2 in dataset('Users')
+for $user in dataset('Users')
+where $user.lottery_numbers ~= $user2.lottery_numbers and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3.aql
deleted file mode 100644
index 1979ba1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-create dataverse fuzzyjoin;
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-lot-aqlplus_3.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $user2 in dataset('Users')
-where $user2.lottery_numbers ~= $user.lottery_numbers and $user.uid < $user2.uid
-order by $user.uid, $user2.uid
-return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.1.ddl.aql
new file mode 100644
index 0000000..3930bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse fuzzyjoin if exists;
+create dataverse fuzzyjoin;
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.2.update.aql
new file mode 100644
index 0000000..fb9f127
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.3.query.aql
new file mode 100644
index 0000000..2453ed2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $user2 in dataset('Users')
+where $user2.lottery_numbers ~= $user.lottery_numbers and $user.uid < $user2.uid
+order by $user.uid, $user2.uid
+return { 'user': $user, 'user2': $user2 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1.aql
deleted file mode 100644
index abbb66a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1.aql
+++ /dev/null
@@ -1,103 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-
-load dataset Users 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
-
-load dataset Visitors 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-int-3_1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $user in dataset('Users')
-    let $lenUser := len($user.interests)
-    let $tokensUser :=
-        for $token in $user.interests
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $user in dataset('Users')
-            for $token in $user.interests 
-            group by $tokenGroupped := $token with $user
-            order by count($user), $tokenGroupped
-            return $tokenGroupped
-        where $token = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenUser in subset-collection(
-                                $tokensUser, 
-                                0,
-                                prefix-len-jaccard($lenUser, .5f))
-
-    for $visitor in dataset('Visitors')
-    let $lenVisitor := len($visitor.interests)
-    let $tokensVisitor :=
-        for $token in $visitor.interests
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $user in dataset('Users')
-            for $token in $user.interests 
-            group by $tokenGroupped := $token with $user 
-            order by count($user), $tokenGroupped
-            return $tokenGroupped
-        where $token = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenVisitor in subset-collection(
-                                    $tokensVisitor, 
-                                    0, 
-                                    prefix-len-jaccard($lenVisitor, .5f))
-
-    where $prefixTokenUser = $prefixTokenVisitor
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenUser,
-                    $tokensUser,
-                    $lenVisitor,
-                    $tokensVisitor,
-                    $prefixTokenUser,
-                    .5f)
-    where $sim >= .5f
-    group by $uid := $user.uid, $vid := $visitor.vid with $sim
-    return {'uid': $uid, 'vid': $vid, 'sim': $sim[0]}
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $ridpair.uid = $user.uid and $ridpair.vid = $visitor.vid
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.3.query.aql
new file mode 100644
index 0000000..89dd3a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.3.query.aql
@@ -0,0 +1,69 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $user in dataset('Users')
+    let $lenUser := len($user.interests)
+    let $tokensUser :=
+        for $token in $user.interests
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $user in dataset('Users')
+            for $token in $user.interests 
+            group by $tokenGroupped := $token with $user
+            order by count($user), $tokenGroupped
+            return $tokenGroupped
+        where $token = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenUser in subset-collection(
+                                $tokensUser, 
+                                0,
+                                prefix-len-jaccard($lenUser, .5f))
+
+    for $visitor in dataset('Visitors')
+    let $lenVisitor := len($visitor.interests)
+    let $tokensVisitor :=
+        for $token in $visitor.interests
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $user in dataset('Users')
+            for $token in $user.interests 
+            group by $tokenGroupped := $token with $user 
+            order by count($user), $tokenGroupped
+            return $tokenGroupped
+        where $token = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenVisitor in subset-collection(
+                                    $tokensVisitor, 
+                                    0, 
+                                    prefix-len-jaccard($lenVisitor, .5f))
+
+    where $prefixTokenUser = $prefixTokenVisitor
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenUser,
+                    $tokensUser,
+                    $lenVisitor,
+                    $tokensVisitor,
+                    $prefixTokenUser,
+                    .5f)
+    where $sim >= .5f
+    group by $uid := $user.uid, $vid := $visitor.vid with $sim
+    return {'uid': $uid, 'vid': $vid, 'sim': $sim[0]}
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $ridpair.uid = $user.uid and $ridpair.vid = $visitor.vid
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1.aql
deleted file mode 100644
index 1a676c5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-int-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $user.interests ~= $visitor.interests
-order by $user.uid, $visitor.vid
-return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..863a339
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $user.interests ~= $visitor.interests
+order by $user.uid, $visitor.vid
+return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2.aql
deleted file mode 100644
index 1e6e417..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-int-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $visitor in dataset('Visitors')
-for $user in dataset('Users')
-where $user.interests ~= $visitor.interests
-order by $user.uid, $visitor.vid
-return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..0b6c54d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $visitor in dataset('Visitors')
+for $user in dataset('Users')
+where $user.interests ~= $visitor.interests
+order by $user.uid, $visitor.vid
+return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3.aql
deleted file mode 100644
index 2d39bd4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-int-aqlplus_3.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $visitor.interests ~= $user.interests
-order by $user.uid, $visitor.vid
-return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.3.query.aql
new file mode 100644
index 0000000..519c6c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $visitor.interests ~= $user.interests
+order by $user.uid, $visitor.vid
+return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.aql
deleted file mode 100644
index 4561a7a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.aql
+++ /dev/null
@@ -1,38 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-int-vis-user-lot-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-for $user2 in dataset('Users')
-where $user.interests ~= $visitor.interests and $visitor.lottery_numbers ~= $user2.lottery_numbers
-order by $user.uid, $visitor.vid, $user2.uid
-return {'user': $user, 'visitor': $visitor, 'user2': $user2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..4dd6e92
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+for $user2 in dataset('Users')
+where $user.interests ~= $visitor.interests and $visitor.lottery_numbers ~= $user2.lottery_numbers
+order by $user.uid, $visitor.vid, $user2.uid
+return {'user': $user, 'visitor': $visitor, 'user2': $user2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1.aql
deleted file mode 100644
index 4de46a5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1.aql
+++ /dev/null
@@ -1,102 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
-
-load dataset Visitors 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-3_1.adm';
-
-//
-// -- - Stage 3 - --
-//
-for $ridpair in 
-    //
-    // -- - Stage 2 - --
-    //
-    for $user in dataset('Users')
-    let $lenUser := len($user.lottery_numbers)
-    let $tokensUser :=
-        for $token in $user.lottery_numbers
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $user in dataset('Users')
-            for $token in $user.lottery_numbers 
-            group by $tokenGroupped := $token with $user
-            order by count($user)
-            return $tokenGroupped
-        where $token = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenUser in subset-collection(
-                                $tokensUser, 
-                                0,
-                                prefix-len-jaccard($lenUser, .5f))
-
-    for $visitor in dataset('Visitors')
-    let $lenVisitor := len($visitor.lottery_numbers)
-    let $tokensVisitor :=
-        for $token in $visitor.lottery_numbers
-        for $tokenRanked at $i in
-            //
-            // -- - Stage 1 - --
-            //
-            for $user in dataset('Users')
-            for $token in $user.lottery_numbers 
-            group by $tokenGroupped := $token with $user 
-            order by count($user)
-            return $tokenGroupped
-        where $token = $tokenRanked
-        order by $i
-        return $i
-    for $prefixTokenVisitor in subset-collection(
-                                    $tokensVisitor, 
-                                    0, 
-                                    prefix-len-jaccard($lenVisitor, .5f))
-
-    where $prefixTokenUser = $prefixTokenVisitor
-
-    let $sim := similarity-jaccard-prefix(
-                    $lenUser,
-                    $tokensUser,
-                    $lenVisitor,
-                    $tokensVisitor,
-                    $prefixTokenUser,
-                    .5f)
-    where $sim >= .5f
-    group by $uid := $user.uid, $vid := $visitor.vid with $sim
-    return {'uid': $uid, 'vid': $vid, 'sim': $sim[0]}
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $ridpair.uid = $user.uid and $ridpair.vid = $visitor.vid
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.3.query.aql
new file mode 100644
index 0000000..5d489ab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.3.query.aql
@@ -0,0 +1,69 @@
+use dataverse fuzzyjoin;
+
+//
+// -- - Stage 3 - --
+//
+for $ridpair in 
+    //
+    // -- - Stage 2 - --
+    //
+    for $user in dataset('Users')
+    let $lenUser := len($user.lottery_numbers)
+    let $tokensUser :=
+        for $token in $user.lottery_numbers
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $user in dataset('Users')
+            for $token in $user.lottery_numbers 
+            group by $tokenGroupped := $token with $user
+            order by count($user)
+            return $tokenGroupped
+        where $token = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenUser in subset-collection(
+                                $tokensUser, 
+                                0,
+                                prefix-len-jaccard($lenUser, .5f))
+
+    for $visitor in dataset('Visitors')
+    let $lenVisitor := len($visitor.lottery_numbers)
+    let $tokensVisitor :=
+        for $token in $visitor.lottery_numbers
+        for $tokenRanked at $i in
+            //
+            // -- - Stage 1 - --
+            //
+            for $user in dataset('Users')
+            for $token in $user.lottery_numbers 
+            group by $tokenGroupped := $token with $user 
+            order by count($user)
+            return $tokenGroupped
+        where $token = $tokenRanked
+        order by $i
+        return $i
+    for $prefixTokenVisitor in subset-collection(
+                                    $tokensVisitor, 
+                                    0, 
+                                    prefix-len-jaccard($lenVisitor, .5f))
+
+    where $prefixTokenUser = $prefixTokenVisitor
+
+    let $sim := similarity-jaccard-prefix(
+                    $lenUser,
+                    $tokensUser,
+                    $lenVisitor,
+                    $tokensVisitor,
+                    $prefixTokenUser,
+                    .5f)
+    where $sim >= .5f
+    group by $uid := $user.uid, $vid := $visitor.vid with $sim
+    return {'uid': $uid, 'vid': $vid, 'sim': $sim[0]}
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $ridpair.uid = $user.uid and $ridpair.vid = $visitor.vid
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor, 'sim': $ridpair.sim}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1.aql
deleted file mode 100644
index d328366..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $user.lottery_numbers ~= $visitor.lottery_numbers
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..474752c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $user.lottery_numbers ~= $visitor.lottery_numbers
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2.aql
deleted file mode 100644
index bf0f287..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $visitor in dataset('Visitors')
-for $user in dataset('Users')
-where $user.lottery_numbers ~= $visitor.lottery_numbers
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..17d7bf0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $visitor in dataset('Visitors')
+for $user in dataset('Users')
+where $user.lottery_numbers ~= $visitor.lottery_numbers
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3.aql
deleted file mode 100644
index 72cb80c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3.aql
+++ /dev/null
@@ -1,37 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-aqlplus_3.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $visitor.lottery_numbers ~= $user.lottery_numbers
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.3.query.aql
new file mode 100644
index 0000000..afd4313
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $visitor.lottery_numbers ~= $user.lottery_numbers
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4.aql
deleted file mode 100644
index 19415d5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4.aql
+++ /dev/null
@@ -1,38 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-aqlplus_4.adm';
-
-set simfunction 'Jaccard';
-set simthreshold '.6f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $user.lottery_numbers ~= $visitor.lottery_numbers
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.3.query.aql
new file mode 100644
index 0000000..3f84e64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+set simfunction 'Jaccard';
+set simthreshold '.6f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $user.lottery_numbers ~= $visitor.lottery_numbers
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5.aql
deleted file mode 100644
index 698b1b5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5.aql
+++ /dev/null
@@ -1,35 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-aqlplus_5.adm';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $user.lottery_numbers ~= $visitor.lottery_numbers
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.3.query.aql
new file mode 100644
index 0000000..4070956
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse fuzzyjoin;
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $user.lottery_numbers ~= $visitor.lottery_numbers
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor}
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1.aql
deleted file mode 100644
index 6a43fa6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-int-aqlplus_1.adm';
-
-set simthreshold '.5f';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where $user.lottery_numbers ~= $visitor.lottery_numbers 
-and $user.interests ~= $visitor.interests 
-order by $user.uid, $visitor.vid
-return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.3.query.aql
new file mode 100644
index 0000000..ce272ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where $user.lottery_numbers ~= $visitor.lottery_numbers 
+and $user.interests ~= $visitor.interests 
+order by $user.uid, $visitor.vid
+return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2.aql
deleted file mode 100644
index 693191a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse fuzzyjoin if exists;
-
-create dataverse fuzzyjoin;
-
-use dataverse fuzzyjoin;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: <string>
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-
-load dataset Users from nc1:'data/users-visitors-small/users.json';
-load dataset Visitors from nc1:'data/users-visitors-small/visitors.json';
-
-write output to nc1:'rttest/fuzzyjoin_user-vis-lot-int-aqlplus_2.adm';
-
-set simthreshold '.5f';
-
-for $visitor in dataset('Visitors')
-for $user in dataset('Users')
-where $user.lottery_numbers ~= $visitor.lottery_numbers 
-and $user.interests ~= $visitor.interests 
-order by $user.uid, $visitor.vid
-return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.1.ddl.aql
new file mode 100644
index 0000000..beb47a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse fuzzyjoin if exists;
+
+create dataverse fuzzyjoin;
+
+use dataverse fuzzyjoin;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.2.update.aql
new file mode 100644
index 0000000..8b3b85b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.3.query.aql
new file mode 100644
index 0000000..2f7d1d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse fuzzyjoin;
+
+set simthreshold '.5f';
+
+for $visitor in dataset('Visitors')
+for $user in dataset('Users')
+where $user.lottery_numbers ~= $visitor.lottery_numbers 
+and $user.interests ~= $visitor.interests 
+order by $user.uid, $visitor.vid
+return { 'user': $user, 'visitor': $visitor }
diff --git a/asterix-app/src/test/resources/runtimets/queries/groupby-orderby-count.aql b/asterix-app/src/test/resources/runtimets/queries/groupby-orderby-count.aql
deleted file mode 100644
index ce4662d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/groupby-orderby-count.aql
+++ /dev/null
@@ -1,23 +0,0 @@
-drop dataverse twitter if exists;
-create dataverse twitter;
-use dataverse twitter;
-create type Tweet as open {
-  id: int32,
-  tweetid: int64,
-  loc: point,
-  time: datetime,
-  text: string
-}
-
-create external dataset TwitterData(Tweet)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm"));
-
-write output to nc1:"rttest/groupby-orderby-count.adm";
-
-for $t in dataset('TwitterData')
-let $tokens := word-tokens($t.text)
-for $token in $tokens
-group by $tok := $token with $token
-order by count($token) desc, $tok asc
-return { "word": $tok, "count": count($token) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.1.ddl.aql
new file mode 100644
index 0000000..4ec251d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineType as closed {
+ content: string
+};
+
+
+create external dataset TextDataset(LineType)
+using hdfs
+(("hdfs"="hdfs://127.0.0.1:31888"),("path"="/asterix/textFileS"),("input-format"="sequence-input-format"),("format"="delimited-text"),("delimiter"="."));
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.2.update.aql
new file mode 100644
index 0000000..b6aae9e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.3.query.aql
new file mode 100644
index 0000000..be4187e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_02/hdfs_02.3.query.aql
@@ -0,0 +1,14 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+use dataverse test;
+
+for $line in dataset('TextDataset')
+let $tokens := word-tokens($line.content)
+for $token in $tokens
+group by $tok := $token with $token
+order by $tok
+return { "word": $tok, "count": count($token) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.1.ddl.aql
new file mode 100644
index 0000000..c35036a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a large (35kb) text file in HDFS.
+                 The input file is sufficiently large to guarantee that # of bytes > than internal buffer of size 8192.
+                 This causes a record to span across the buffer size boundaries. 
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineType as closed {
+ content: string
+};
+
+create external dataset TextDataset(LineType)
+using hdfs
+(("hdfs"="hdfs://127.0.0.1:31888"),("path"="/asterix/large_text"),("input-format"="text-input-format"),("format"="delimited-text"),("delimiter"="."));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.2.update.aql
new file mode 100644
index 0000000..bfa0f61
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.2.update.aql
@@ -0,0 +1,9 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a large (35kb) text file in HDFS.
+                 The input file is sufficiently large to guarantee that # of bytes > than internal buffer of size 8192.
+                 This causes a record to span across the buffer size boundaries. 
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.3.query.aql
new file mode 100644
index 0000000..dae4648
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/hdfs_03/hdfs_03.3.query.aql
@@ -0,0 +1,16 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a large (35kb) text file in HDFS.
+                 The input file is sufficiently large to guarantee that # of bytes > than internal buffer of size 8192.
+                 This causes a record to span across the buffer size boundaries. 
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 7th Jan 2013
+*/
+use dataverse test;
+
+for $line in dataset('TextDataset')
+let $tokens := word-tokens($line.content)
+for $token in $tokens
+group by $tok := $token with $token
+order by $tok
+return { "word": $tok, "count": count($token) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.1.ddl.aql
new file mode 100644
index 0000000..77e2eb5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a file in HDFS.
+                 Iterate over the contained tuples.
+* Expected Res : Success
+* Issue        : 245
+* Date         : 7th Jan 2013
+*/
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type LineType as closed {
+ line: string
+};
+
+create external dataset TextDataset(LineType)
+using hdfs
+(("hdfs"="hdfs://127.0.0.1:31888"),("path"="/asterix/asterix_info.txt"),("input-format"="text-input-format"),("format"="delimited-text"),("delimiter"="."));
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.2.update.aql
new file mode 100644
index 0000000..2b0efea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.2.update.aql
@@ -0,0 +1,8 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a file in HDFS.
+                 Iterate over the contained tuples.
+* Expected Res : Success
+* Issue        : 245
+* Date         : 7th Jan 2013
+*/
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.3.query.aql
new file mode 100644
index 0000000..653ee6c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hdfs/issue_245_hdfs/issue_245_hdfs.3.query.aql
@@ -0,0 +1,11 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a file in HDFS.
+                 Iterate over the contained tuples.
+* Expected Res : Success
+* Issue        : 245
+* Date         : 7th Jan 2013
+*/
+use dataverse test;
+
+for $x in dataset('TextDataset')
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.1.ddl.aql
new file mode 100644
index 0000000..e961f0a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Use hint (cardinality) for the created dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLPadm(DBLPType)
+primary key id
+hints(cardinality=200); 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.2.update.aql
new file mode 100644
index 0000000..c2543f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.2.update.aql
@@ -0,0 +1,15 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Use hint (cardinality) for the created dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+load dataset DBLPadm 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/dblp-small/part-00000.adm,nc1://data/dblp-small/part-00001.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.3.query.aql
new file mode 100644
index 0000000..0334be7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.3.query.aql
@@ -0,0 +1,14 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Use hint (cardinality) for the created dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+for $paper in dataset('DBLPadm')
+order by $paper.id
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.ddl.aql
new file mode 100644
index 0000000..0df8528
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Provide hint(cardinality) when creating the dataset.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type LineType as closed {
+ content: string
+};
+
+create external dataset TextDataset(LineType)
+using hdfs
+(("hdfs"="hdfs://127.0.0.1:31888"),("path"="/asterix/textFileS"),("input-format"="sequence-input-format"),("format"="delimited-text"),("delimiter"="."))
+hints(cardinality=10);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.2.update.aql
new file mode 100644
index 0000000..0ac9748
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.2.update.aql
@@ -0,0 +1,7 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Provide hint(cardinality) when creating the dataset.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.3.query.aql
new file mode 100644
index 0000000..42fe34b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.3.query.aql
@@ -0,0 +1,16 @@
+/*
+* Description  : Create an external dataset that contains a tuples, the lines from a (*sequence*) file in HDFS.
+                 Provide hint(cardinality) when creating the dataset.
+                 Perform a word-count over the data in the dataset.
+* Expected Res : Success
+* Date         : 30th Jan 2013
+*/
+
+use dataverse test;
+
+for $line in dataset('TextDataset')
+let $tokens := word-tokens($line.content)
+for $token in $tokens
+group by $tok := $token with $token
+order by $tok
+return { "word": $tok, "count": count($token) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.ddl.aql
new file mode 100644
index 0000000..ca09806
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Use hint (cardinality) for the feed dataset.
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 30th Jan 2013
+ */
+drop dataverse feeds if exists;
+create dataverse feeds;
+use dataverse feeds;
+
+create type TweetType as closed {
+  id: string,
+  username : string,
+  location : string,
+  text : string,
+  timestamp : string
+}      
+
+create feed dataset TweetFeed(TweetType)
+using "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory"
+(("fs"="localfs"),("path"="nc1://data/twitter/obamatweets.adm"),("format"="adm"),("output-type-name"="TweetType"),("tuple-interval"="10"))
+primary key id
+hints(cardinality=200);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql
new file mode 100644
index 0000000..7851440
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Use hint (cardinality) for the feed dataset.
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 30th Jan 2013
+ */
+
+use dataverse feeds;
+
+begin feed feeds.TweetFeed;
diff --git a/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.3.query.aql
new file mode 100644
index 0000000..efa1f9c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create a feed dataset that uses the feed simulator adapter. 
+                  Use hint (cardinality) for the feed dataset.
+                  Begin ingestion using a fully qualified name and verify contents of the dataset post completion.  
+ * Expected Res : Success
+ * Date         : 30th Jan 2013
+ */
+
+use dataverse feeds;
+
+for $x in dataset('TweetFeed')
+return $x
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/ifthenelse_01.aql b/asterix-app/src/test/resources/runtimets/queries/ifthenelse_01.aql
deleted file mode 100644
index 1da06a7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/ifthenelse_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-use dataverse test;
-
-write output to nc1:"rttest/ifthenelse_01.adm";
-
-if (2>1) then
-    20
-else
-    10
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.1.ddl.aql
new file mode 100644
index 0000000..1b990be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.1.ddl.aql
@@ -0,0 +1,43 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  cashBack: int32,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float,
+  items: [int32]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+create dataset Orders(OrderType) primary key oid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.2.update.aql
new file mode 100644
index 0000000..e94207f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/customerData.json"),("format"="adm"));
+
+load dataset Orders
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/orderData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.3.query.aql
new file mode 100644
index 0000000..1f6d89e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-primary-equi-join/btree-primary-equi-join.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Equi joins two datasets, Customers and Orders, based on the customer id.
+ *                  Given the 'indexnl' hint we expect the join to be transformed
+ *                  into an indexed nested-loop join using Customers' primary index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $c in dataset('Customers')
+for $o in dataset('Orders')
+where $c.cid /*+ indexnl */ = $o.cid
+order by $c.cid, $o.oid
+return {"cid":$c.cid, "oid": $o.oid}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.ddl.aql
new file mode 100644
index 0000000..442a8df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.2.update.aql
new file mode 100644
index 0000000..78a8e47
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.3.ddl.aql
new file mode 100644
index 0000000..070ebdb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index title_index on DBLP(authors);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.4.query.aql
new file mode 100644
index 0000000..ed73df6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/btree-secondary-equi-join/btree-secondary-equi-join.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Equi joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where $a.authors /*+ indexnl */ = $b.authors
+order by $a.id, $b.id
+return {"aid": $a.id, "bid": $b.id, "authors": $a.authors}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.ddl.aql
new file mode 100644
index 0000000..e24c6d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.ddl.aql
@@ -0,0 +1,27 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData1' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create dataset MyData1(MyRecord) primary key id;
+create dataset MyData2(MyRecord) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.2.update.aql
new file mode 100644
index 0000000..ead81a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData1' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset MyData1
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
+
+load dataset MyData2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.3.ddl.aql
new file mode 100644
index 0000000..391501b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData1' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index rtree_index on MyData1(point) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.4.query.aql
new file mode 100644
index 0000000..de3062e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Joins two datasets on the intersection of their point attributes.
+ *                  The dataset 'MyData1' has an RTree index, and we expect the 
+ *                  join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('MyData1')
+for $b in dataset('MyData2')
+where spatial-intersect($a.point, $b.point) and $a.id != $b.id
+order by $a.id, $b.id
+return {"aid": $a.id, "bid": $b.id, "apt": $a.point, "bp": $b.point}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.ddl.aql
new file mode 100644
index 0000000..754a23c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname > "Julio" and $l.lname > "Mattocks" and
+ *					 $l.fname <= "Micco" and $l.lname < "Vangieson" 
+ * Expected Result : Success
+ * Issue           : Issue 174
+ * Date            : 5th Feb, 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as closed {
+id:int32,
+fname:string,
+lname:string,
+age:int32,
+dept:string
+}
+
+create dataset employee(Emp) primary key id;
+
+create index idx_employee_f_l_name on employee(fname,lname);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.2.update.aql
new file mode 100644
index 0000000..ba6c29e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname > "Julio" and $l.lname > "Mattocks" and
+ *					 $l.fname <= "Micco" and $l.lname < "Vangieson" 
+ * Expected Result : Success
+ * Issue           : Issue 174
+ * Date            : 5th Feb, 2013
+ */
+
+use dataverse test;
+
+load dataset employee
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/names.adm"),("format"="delimited-text"),("delimiter"="|"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.3.query.aql
new file mode 100644
index 0000000..dddd46f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname > "Julio" and $l.lname > "Mattocks" and
+ *					 $l.fname <= "Micco" and $l.lname < "Vangieson" 
+ * Expected Result : Success
+ * Issue           : Issue 174
+ * Date            : 5th Feb, 2013
+ */
+
+use dataverse test;
+
+for $l in dataset('employee')
+where $l.fname > "Julio" and $l.lname > "Mattocks" and $l.fname <= "Micco" and $l.lname < "Vangieson" 
+order by $l.id
+return $l
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.1.ddl.aql
new file mode 100644
index 0000000..5103c09
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.1.ddl.aql
@@ -0,0 +1,23 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname="Julio" and $l.lname="Isa"
+ * Expected Result : Success
+ * Issue           : Issue 162
+ * Date            : 7th August 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as closed {
+id:int32,
+fname:string,
+lname:string,
+age:int32,
+dept:string
+}
+
+create dataset employee(Emp) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.2.update.aql
new file mode 100644
index 0000000..b3251a8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname="Julio" and $l.lname="Isa"
+ * Expected Result : Success
+ * Issue           : Issue 162
+ * Date            : 7th August 2012
+ */
+
+use dataverse test;
+
+load dataset employee
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/names.adm"),("format"="delimited-text"),("delimiter"="|"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.3.ddl.aql
new file mode 100644
index 0000000..8a7bafe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.3.ddl.aql
@@ -0,0 +1,6 @@
+
+use dataverse test;
+
+// create secondary index
+
+create index idx_employee_f_l_name on employee(fname,lname);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.4.query.aql
new file mode 100644
index 0000000..dff06ea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-composite-key/btree-index-composite-key.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description     : Test that BTree index is used in query plan
+ *                 : define the BTree index on a composite key (fname,lanme)
+ *                 : predicate => where $l.fname="Julio" and $l.lname="Isa"
+ * Expected Result : Success
+ * Issue           : Issue 162
+ * Date            : 7th August 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('employee')
+where $l.fname="Julio" and $l.lname="Isa"
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.ddl.aql
new file mode 100644
index 0000000..4ed0993
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+ * Description     : Test that multiple subtrees in the same query
+ *                   can be rewritten with secondary BTree indexes.
+ *                   Guards against regression to issue 204.
+ * Expected Result : Success
+ * Issue           : Issue 204
+ */
+ 
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create dataset Orders(OrderType) primary key o_orderkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.2.update.aql
new file mode 100644
index 0000000..d6e52bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.2.update.aql
@@ -0,0 +1,14 @@
+/*
+ * Description     : Test that multiple subtrees in the same query
+ *                   can be rewritten with secondary BTree indexes.
+ *                   Guards against regression to issue 204.
+ * Expected Result : Success
+ * Issue           : Issue 204
+ */
+ 
+use dataverse tpch;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.3.ddl.aql
new file mode 100644
index 0000000..2489b15
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.3.ddl.aql
@@ -0,0 +1,6 @@
+
+use dataverse tpch;
+
+// create secondary index on Orders(o_custkey)
+
+create index idx_Orders_Custkey on Orders(o_custkey);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.4.query.aql
new file mode 100644
index 0000000..8d7faab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.4.query.aql
@@ -0,0 +1,24 @@
+/*
+ * Description     : Test that multiple subtrees in the same query
+ *                   can be rewritten with secondary BTree indexes.
+ *                   Guards against regression to issue 204.
+ * Expected Result : Success
+ * Issue           : Issue 204
+ */
+ 
+use dataverse tpch;
+
+for $o in dataset('Orders')
+for $o2 in dataset('Orders')
+where $o.o_custkey = 20 and $o2.o_custkey = 10
+and $o.o_orderstatus < $o2.o_orderstatus
+order by $o.o_orderkey, $o2.o_orderkey
+return {
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey,
+  "o_orderstatus": $o.o_orderstatus,
+  "o_orderkey2": $o2.o_orderkey,
+  "o_custkey2": $o2.o_custkey,
+  "o_orderstatus2": $o2.o_orderstatus
+}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.ddl.aql
new file mode 100644
index 0000000..80e9b17
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.ddl.aql
@@ -0,0 +1,21 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.2.update.aql
new file mode 100644
index 0000000..a1c40f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/tiny01/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.3.ddl.aql
new file mode 100644
index 0000000..7548774
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.3.ddl.aql
@@ -0,0 +1,6 @@
+
+use dataverse test;
+
+// create secondary index on Customers(age)
+
+create index age_index on Customers(age);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.4.query.aql
new file mode 100644
index 0000000..86e1e8d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/cust-index-age-nullable/cust-index-age-nullable.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+where $c.age < 20
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql
new file mode 100644
index 0000000..d9ca825
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql
new file mode 100644
index 0000000..866b045
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql
new file mode 100644
index 0000000..7afd29a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index ngram_index on DBLP(authors) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql
new file mode 100644
index 0000000..45ac926
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
+where $ed[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..7afd29a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index ngram_index on DBLP(authors) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql
new file mode 100644
index 0000000..0f4c003
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 1)
+where $ed[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql
new file mode 100644
index 0000000..d9ca825
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql
new file mode 100644
index 0000000..79b65bb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false), 0.5f)
+where $jacc[0]
+return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql
new file mode 100644
index 0000000..8a57319
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
+create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql
new file mode 100644
index 0000000..063b172
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql
new file mode 100644
index 0000000..d4a4f60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 3)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..8a57319
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
+create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql
new file mode 100644
index 0000000..063b172
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql
new file mode 100644
index 0000000..7ebd73e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 1)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..8a57319
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
+create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql
new file mode 100644
index 0000000..063b172
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql
new file mode 100644
index 0000000..27a838ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..3e2562a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql
@@ -0,0 +1,25 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
+create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql
new file mode 100644
index 0000000..0deeabc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql
new file mode 100644
index 0000000..27a838ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql
new file mode 100644
index 0000000..326b264
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql
new file mode 100644
index 0000000..d6de89d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql
new file mode 100644
index 0000000..326b264
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
+create index keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql
new file mode 100644
index 0000000..830e08a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql
new file mode 100644
index 0000000..7ce908c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.3.ddl.aql
new file mode 100644
index 0000000..4fbadcd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.3.ddl.aql
@@ -0,0 +1,6 @@
+
+use dataverse test;
+
+// create secondary index of type ngram on DBLP(title)
+
+create index ngram_index on DBLP(title) type ngram(3);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.4.query.aql
new file mode 100644
index 0000000..d6de89d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.3.ddl.aql
new file mode 100644
index 0000000..ad6365d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.3.ddl.aql
@@ -0,0 +1,4 @@
+
+use dataverse test;
+
+create index ngram_index on DBLP(authors) type ngram(3);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.4.query.aql
new file mode 100644
index 0000000..953f942
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
+where $ed[0]
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..2a43a57
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index ngram_index on DBLP(authors) type ngram(3);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.4.query.aql
new file mode 100644
index 0000000..70421c2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $ed := edit-distance-check($o.authors, "Amihay Motro", 1)
+where $ed[0]
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.3.ddl.aql
new file mode 100644
index 0000000..4209874
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.4.query.aql
new file mode 100644
index 0000000..5d9ad67
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false), 0.5f)
+where $jacc[0]
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.ddl.aql
new file mode 100644
index 0000000..b2dc701
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.ddl.aql
@@ -0,0 +1,22 @@
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.2.update.aql
new file mode 100644
index 0000000..5b72d8a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.3.ddl.aql
new file mode 100644
index 0000000..5356b79
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.3.ddl.aql
@@ -0,0 +1,4 @@
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.4.query.aql
new file mode 100644
index 0000000..d4a4f60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.4.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 3)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..dfc0f4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.ddl.aql
@@ -0,0 +1,24 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.2.update.aql
new file mode 100644
index 0000000..5b72d8a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..6d7c0cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.4.query.aql
new file mode 100644
index 0000000..7ebd73e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.4.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 1)
+where $ed[0]
+order by $c.cid
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..dfc0f4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.ddl.aql
@@ -0,0 +1,24 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.2.update.aql
new file mode 100644
index 0000000..5b72d8a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..5356b79
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.3.ddl.aql
@@ -0,0 +1,4 @@
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.4.query.aql
new file mode 100644
index 0000000..27a838ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..a350a46
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.ddl.aql
@@ -0,0 +1,24 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create nodegroup group1 if not exists on nc1;
+
+create dataset Customers(CustomerType) 
+  primary key cid on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.2.update.aql
new file mode 100644
index 0000000..079983b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..5356b79
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.3.ddl.aql
@@ -0,0 +1,4 @@
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.4.query.aql
new file mode 100644
index 0000000..27a838ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
+where $jacc[0]
+return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.3.ddl.aql
new file mode 100644
index 0000000..c8db25b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.4.query.aql
new file mode 100644
index 0000000..d6de89d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-contains/inverted-index-word-contains.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+where contains($o.title, "Multimedia")
+order by $o.id
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.ddl.aql
new file mode 100644
index 0000000..49c6b3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.3.ddl.aql
new file mode 100644
index 0000000..93b64c1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.4.query.aql
new file mode 100644
index 0000000..7ce908c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.4.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('DBLP')
+let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
+where $jacc[0]
+return $o
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.1.ddl.aql
new file mode 100644
index 0000000..2cfb39a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.2.update.aql
new file mode 100644
index 0000000..2ed1a52
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.3.ddl.aql
new file mode 100644
index 0000000..a92308f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse tpch;
+
+create index idx_Orders_Custkey on Orders(o_custkey) ;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.4.query.aql
new file mode 100644
index 0000000..6d18b32
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.4.query.aql
@@ -0,0 +1,10 @@
+use dataverse tpch;
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40 and $o.o_totalprice > 150000.0
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.1.ddl.aql
new file mode 100644
index 0000000..2cfb39a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.2.update.aql
new file mode 100644
index 0000000..2ed1a52
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.3.ddl.aql
new file mode 100644
index 0000000..ed3fab0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse tpch;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.4.query.aql
new file mode 100644
index 0000000..6d18b32
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.4.query.aql
@@ -0,0 +1,10 @@
+use dataverse tpch;
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40 and $o.o_totalprice > 150000.0
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.1.ddl.aql
new file mode 100644
index 0000000..b541c58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.1.ddl.aql
@@ -0,0 +1,22 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type OrderType as open {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset Orders(OrderType)
+  primary key o_orderkey on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.2.update.aql
new file mode 100644
index 0000000..0d60097
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.3.ddl.aql
new file mode 100644
index 0000000..ed3fab0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse tpch;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.4.query.aql
new file mode 100644
index 0000000..5d47296
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey-open/orders-index-custkey-open.4.query.aql
@@ -0,0 +1,10 @@
+use dataverse tpch;
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey 
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.1.ddl.aql
new file mode 100644
index 0000000..2cfb39a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+use dataverse tpch;
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.2.update.aql
new file mode 100644
index 0000000..0d60097
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.3.ddl.aql
new file mode 100644
index 0000000..ed3fab0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse tpch;
+
+create index idx_Orders_Custkey on Orders(o_custkey);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.4.query.aql
new file mode 100644
index 0000000..5d47296
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/orders-index-custkey/orders-index-custkey.4.query.aql
@@ -0,0 +1,10 @@
+use dataverse tpch;
+
+for $o in dataset('Orders')
+where
+  $o.o_custkey = 40
+order by $o.o_orderkey
+return {  
+  "o_orderkey": $o.o_orderkey,
+  "o_custkey": $o.o_custkey 
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.1.ddl.aql
new file mode 100644
index 0000000..530d7a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+use dataverse test;
+
+create type LineItemType as open {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.2.update.aql
new file mode 100644
index 0000000..7ab39fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.3.ddl.aql
new file mode 100644
index 0000000..a3572c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.3.ddl.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+create index idx_LineItem_partkey on LineItem(l_linenumber);
+create index idx_LineItem_suppkey on LineItem(l_suppkey);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.4.query.aql
new file mode 100644
index 0000000..62c9e84
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search-open/range-search-open.4.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+      
+for $c in dataset('LineItem')
+where $c.l_suppkey < 100 and $c.l_suppkey>5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.1.ddl.aql
new file mode 100644
index 0000000..5281e04
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse test if exists;
+  
+create dataverse test;
+use dataverse test;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.2.update.aql
new file mode 100644
index 0000000..7ab39fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.3.ddl.aql
new file mode 100644
index 0000000..75edda0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.3.ddl.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+create index idx_LineItem_partkey on LineItem(l_linenumber);
+create index idx_LineItem_suppkey on LineItem(l_suppkey);
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.4.query.aql
new file mode 100644
index 0000000..7d79f2b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/range-search/range-search.4.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $c in dataset('LineItem')
+where $c.l_suppkey < 100 and $c.l_suppkey>5
+order by $c.l_orderkey, $c.l_linenumber
+return $c 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.1.ddl.aql
new file mode 100644
index 0000000..77b9ef2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point?,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.2.update.aql
new file mode 100644
index 0000000..2ac581c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/spatial/spatialDataNulls.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.3.ddl.aql
new file mode 100644
index 0000000..b6a123e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index rtree_index_point on MyData(point) type rtree;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.4.query.aql
new file mode 100644
index 0000000..9d067bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(4.0,1.0), create-point(4.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.ddl.aql
new file mode 100644
index 0000000..9de9b5e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.2.update.aql
new file mode 100644
index 0000000..d845d68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.3.ddl.aql
new file mode 100644
index 0000000..b6a123e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index rtree_index_point on MyData(point) type rtree;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.4.query.aql
new file mode 100644
index 0000000..9d067bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(4.0,1.0), create-point(4.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.1.ddl.aql
new file mode 100644
index 0000000..52fa76f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.1.ddl.aql
@@ -0,0 +1,19 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as closed {
+  id: int32,
+  point: point,
+  kwds: string,
+  line1: line,
+  line2: line,
+  poly1: polygon,
+  poly2: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create dataset MyData(MyRecord)
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.2.update.aql
new file mode 100644
index 0000000..d845d68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.3.ddl.aql
new file mode 100644
index 0000000..b6a123e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.3.ddl.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+create index rtree_index_point on MyData(point) type rtree;
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.4.query.aql
new file mode 100644
index 0000000..9d067bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/index-selection/rtree-secondary-index/rtree-secondary-index.4.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-polygon(create-point(4.0,1.0), create-point(4.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey-conjunctive.aql b/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey-conjunctive.aql
deleted file mode 100644
index f01b16d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey-conjunctive.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-use dataverse tpch;
-
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-create index idx_Orders_Custkey on Orders(o_custkey) ;
-
-write output to nc1:"rttest/index_orders-index-custkey-conjunctive.adm";
-
-for $o in dataset('Orders')
-where
-  $o.o_custkey = 40 and $o.o_totalprice > 150000.0
-order by $o.o_orderkey
-return {  
-  "o_orderkey": $o.o_orderkey,
-  "o_custkey": $o.o_custkey
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey.aql b/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey.aql
deleted file mode 100644
index 7bc7320..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index/orders-index-custkey.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-use dataverse tpch;
-
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-create index idx_Orders_Custkey on Orders(o_custkey);
-
-write output to nc1:"rttest/index_orders-index-custkey.adm";
-
-for $o in dataset('Orders')
-where
-  $o.o_custkey = 40
-order by $o.o_orderkey
-return {  
-  "o_orderkey": $o.o_orderkey,
-  "o_custkey": $o.o_custkey 
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/index/range-search.aql b/asterix-app/src/test/resources/runtimets/queries/index/range-search.aql
deleted file mode 100644
index ea0b4ef..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index/range-search.aql
+++ /dev/null
@@ -1,42 +0,0 @@
-drop dataverse test if exists;
-  
-create dataverse test;
-use dataverse test;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-create index idx_LineItem_partkey on LineItem(l_linenumber);
-create index idx_LineItem_suppkey on LineItem(l_suppkey);
-
-write output to nc1:"rttest/index_range-search.adm";      
-for $c in dataset('LineItem')
-where $c.l_suppkey < 100 and $c.l_suppkey>5
-order by $c.l_orderkey, $c.l_linenumber
-return $c 
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/index/rtree-secondary-index.aql b/asterix-app/src/test/resources/runtimets/queries/index/rtree-secondary-index.aql
deleted file mode 100644
index 71c5630..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index/rtree-secondary-index.aql
+++ /dev/null
@@ -1,33 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as closed {
-  id: int32,
-  point: point,
-  kwds: string,
-  line1: line,
-  line2: line,
-  poly1: polygon,
-  poly2: polygon,
-  rec: rectangle
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset MyData(MyRecord)
-  partitioned by key id on group1;
-
-load dataset MyData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-create index rtree_index_point on MyData(point) type rtree;
-
-
-write output to nc1:"rttest/index_rtree-secondary-index.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, create-polygon(create-point(4.0,1.0), create-point(4.0,4.0), create-point(12.0,4.0), create-point(12.0,1.0)))
-order by $o.id
-return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql
new file mode 100644
index 0000000..9839997
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql
new file mode 100644
index 0000000..3c90bca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql
new file mode 100644
index 0000000..067e129
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on Customers(name) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql
new file mode 100644
index 0000000..5ea4feb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $ed := edit-distance($a.name, $b.name)
+where $ed <= 4 and $a.cid < $b.cid
+order by $ed, $a.cid, $b.cid
+return { "a": $a.name, "b": $b.name, "ed": $ed }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..8c1dcf7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.2.update.aql
new file mode 100644
index 0000000..fd5c673
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..331eac8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on Customers(name) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.4.query.aql
new file mode 100644
index 0000000..f7389e8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance($a.name, $b.name) <= 4 and $a.cid < $b.cid
+order by $a.cid, $b.cid
+return { "a": $a.name, "b": $b.name }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..3e8cbdf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..9388959
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..55cfe1f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..dcd5245
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+let $jacc := similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false))
+where $jacc >= 0.5f and $a.id < $b.id
+order by $jacc, $a.id, $b.id
+return { "a": $a.title, "b": $b.title, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.ddl.aql
new file mode 100644
index 0000000..2f83f29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.2.update.aql
new file mode 100644
index 0000000..319c927
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.3.ddl.aql
new file mode 100644
index 0000000..987a971
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.4.query.aql
new file mode 100644
index 0000000..4364545
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f 
+      and $a.id < $b.id
+order by $a.id, $b.id
+return { "a": $a.title, "b": $b.title }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql
new file mode 100644
index 0000000..85540fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql
new file mode 100644
index 0000000..a288228
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql
new file mode 100644
index 0000000..4a1206f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql
new file mode 100644
index 0000000..d904c09
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $ed := edit-distance($a.interests, $b.interests)
+where len($a.interests) > 2 and len($b.interests) > 2 and $ed <= 1 and $a.cid < $b.cid
+order by $ed, $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests, "ed": $ed }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..f7184e3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.2.update.aql
new file mode 100644
index 0000000..b298b25
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..8aa959a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.4.query.aql
new file mode 100644
index 0000000..b9221da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where len($a.interests) > 2 and len($b.interests) > 2 and edit-distance($a.interests, $b.interests) <= 1 and $a.cid < $b.cid
+order by $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..48d67bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..3505c80
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..7e1363e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..8dda04e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $jacc := /*+ indexnl */similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.9f  and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $jacc, $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..fd62a68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.2.update.aql
new file mode 100644
index 0000000..0a87342
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..1aab524
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.4.query.aql
new file mode 100644
index 0000000..0af3efe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.9f 
+      and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..c8243dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..2136ee7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..536a1c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..b7b056e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.9f and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $jacc, $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..621a16f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.2.update.aql
new file mode 100644
index 0000000..f183f5e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..08dd82d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.4.query.aql
new file mode 100644
index 0000000..57fd37c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.9f 
+      and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $a.cid, $b.cid
+return { "a": $a.interests, "b": $b.interests }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..4b89bd3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.ddl.aql
@@ -0,0 +1,32 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..0a2a629
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..b403681
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.3.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..6faa6a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.4.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+let $jacc := similarity-jaccard(word-tokens($a.title), word-tokens($b.title))
+where $jacc >= 0.5f and $a.id < $b.id
+order by $jacc, $a.id, $b.id
+return { "a": $a.title, "b": $b.title, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.ddl.aql
new file mode 100644
index 0000000..4ede1c3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.2.update.aql
new file mode 100644
index 0000000..a166535
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.3.ddl.aql
new file mode 100644
index 0000000..8539f7c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.4.query.aql
new file mode 100644
index 0000000..3db8b5f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We expect the top-level equi join introduced because of surrogate optimization to be removed, since it is not necessary.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f 
+      and $a.id < $b.id
+order by $a.id, $b.id
+return { "a": $a.title, "b": $b.title }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql
new file mode 100644
index 0000000..8937d31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql
new file mode 100644
index 0000000..7943637
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql
new file mode 100644
index 0000000..6e89a58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on Customers(name) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql
new file mode 100644
index 0000000..fae1b49
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $ed := edit-distance($a.name, $b.name)
+where $ed <= 4 and $a.cid < $b.cid
+order by $ed, $a.cid, $b.cid
+return { "arec": $a, "brec": $b, "ed": $ed }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..85ffd04
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.2.update.aql
new file mode 100644
index 0000000..2b2b0a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..e1a575c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on Customers(name) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.4.query.aql
new file mode 100644
index 0000000..af3f92f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-edit-distance/ngram-edit-distance.4.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their names.
+ *                  Customers has a 3-gram index on name, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where edit-distance($a.name, $b.name) <= 4 and $a.cid < $b.cid
+order by $a.cid, $b.cid
+return { "arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..3a23b8b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..8fbfdb9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..f033aac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..e7fc13e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+let $jacc := similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false))
+where $jacc >= 0.5f and $a.id < $b.id
+order by $jacc, $a.id, $b.id
+return { "arec": $a, "brec": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.1.ddl.aql
new file mode 100644
index 0000000..ca6ba44
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.2.update.aql
new file mode 100644
index 0000000..93233c1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.3.ddl.aql
new file mode 100644
index 0000000..7ca5559
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index ngram_index on DBLP(title) type ngram(3);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.4.query.aql
new file mode 100644
index 0000000..b237130
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ngram-jaccard/ngram-jaccard.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' 3-gram tokens.
+ *                  DBLP has a 3-gram index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(gram-tokens($a.title, 3, false), gram-tokens($b.title, 3, false)) >= 0.5f 
+      and $a.id < $b.id
+order by $a.id, $b.id
+return { "arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql
new file mode 100644
index 0000000..4888062
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql
new file mode 100644
index 0000000..c3af774
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql
new file mode 100644
index 0000000..93801ae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql
new file mode 100644
index 0000000..d9a7177
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $ed := edit-distance($a.interests, $b.interests)
+where len($a.interests) > 2 and len($b.interests) > 2 and $ed <= 1 and $a.cid < $b.cid
+order by $ed, $a.cid, $b.cid
+return { "arec": $a, "brec": $b, "ed": $ed }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..ee77aef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.2.update.aql
new file mode 100644
index 0000000..e846058
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.3.ddl.aql
new file mode 100644
index 0000000..23753d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.4.query.aql
new file mode 100644
index 0000000..de75bfd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-edit-distance/olist-edit-distance.4.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the edit-distance function of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where len($a.interests) > 2 and len($b.interests) > 2 and edit-distance($a.interests, $b.interests) <= 1 and $a.cid < $b.cid
+order by $a.cid, $b.cid
+return { "arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..d920ee7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..575be21
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..85e97a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..851c116
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $jacc := /*+ indexnl */similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.9f  and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $jacc, $a.cid, $b.cid
+return { "a": $a, "b": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..a40bfc8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: [string],
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.2.update.aql
new file mode 100644
index 0000000..e86922d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..fa43878
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.4.query.aql
new file mode 100644
index 0000000..61efa58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/olist-jaccard/olist-jaccard.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest lists.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.9f 
+      and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $a.cid, $b.cid
+return { "a": $a, "b": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..97c776b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..3c344a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..206215a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..3b2b968
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+let $jacc := /*+ indexnl */ similarity-jaccard($a.interests, $b.interests)
+where $jacc >= 0.9f and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $jacc, $a.cid, $b.cid
+return { "a": $a, "b": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.1.ddl.aql
new file mode 100644
index 0000000..dc3c320
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as closed {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create dataset Customers(CustomerType) primary key cid;
+  
+create dataset Customers2(CustomerType) primary key cid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.2.update.aql
new file mode 100644
index 0000000..7a61d5cf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset Customers 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
+load dataset Customers2
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.3.ddl.aql
new file mode 100644
index 0000000..de55309
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index interests_index on Customers(interests) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.4.query.aql
new file mode 100644
index 0000000..7570905
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/ulist-jaccard/ulist-jaccard.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, Customers and Customers2, based on the Jaccard similarity of their interest sets.
+ *                  Customers has a keyword index on interests, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('Customers')
+for $b in dataset('Customers2')
+where /*+ indexnl */ similarity-jaccard($a.interests, $b.interests) >= 0.9f 
+      and $a.cid < $b.cid and len($a.interests) > 1 and len($b.interests) > 1
+order by $a.cid, $b.cid
+return { "a": $a, "b": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.1.ddl.aql
new file mode 100644
index 0000000..719949b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.2.update.aql
new file mode 100644
index 0000000..3064796
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.3.ddl.aql
new file mode 100644
index 0000000..b8fbe01
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.3.ddl.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.4.query.aql
new file mode 100644
index 0000000..f8ada76
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard-inline/word-jaccard-inline.4.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ *                  We test the inlining of variables that enable the select to be pushed into the join for subsequent optimization with an index.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+let $jacc := similarity-jaccard(word-tokens($a.title), word-tokens($b.title))
+where $jacc >= 0.5f and $a.id < $b.id
+order by $jacc, $a.id, $b.id
+return { "arec": $a, "brec": $b, "jacc": $jacc }
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.1.ddl.aql
new file mode 100644
index 0000000..c134018
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.2.update.aql
new file mode 100644
index 0000000..5a307f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.3.ddl.aql
new file mode 100644
index 0000000..092ca3e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.3.ddl.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+create index keyword_index on DBLP(title) type keyword;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.4.query.aql
new file mode 100644
index 0000000..29a98c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/inverted-index-join/word-jaccard/word-jaccard.4.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Fuzzy joins two datasets, DBLP and CSX, based on the similarity-jaccard function of their titles' word tokens.
+ *                  DBLP has a keyword index on title, and we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+for $b in dataset('CSX')
+where similarity-jaccard(word-tokens($a.title), word-tokens($b.title)) >= 0.5f 
+      and $a.id < $b.id
+order by $a.id, $b.id
+return { "arec": $a, "brec": $b }
diff --git a/asterix-app/src/test/resources/runtimets/queries/is-null_01.aql b/asterix-app/src/test/resources/runtimets/queries/is-null_01.aql
deleted file mode 100644
index ca6ac7a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/is-null_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/is-null_01.adm";
-
-[is-null(null), is-null(10)]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.1.ddl.aql
new file mode 100644
index 0000000..230315e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.1.ddl.aql
@@ -0,0 +1,31 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.2.update.aql
new file mode 100644
index 0000000..923f6e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.3.query.aql
new file mode 100644
index 0000000..edcb9b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285-2/query_issue285-2.3.query.aql
@@ -0,0 +1,25 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *
+ *					TODO(@Sattam): given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *					
+ *					regression test 2 for issue 285--having an order by and limit for the outer loop relation
+ *
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+order by $a.id
+limit 10
+return {
+"aid": $a.id,
+"bids": for $b in dataset('CSX')
+where $a.authors = $b.authors
+order by $b.id
+return $b.id
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.1.ddl.aql
new file mode 100644
index 0000000..a04adc8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.1.ddl.aql
@@ -0,0 +1,35 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title.
+ *					
+ *					TODO(@Sattam): given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *					
+ *					regression test for issue 285
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create type CSXType as closed {
+  id: int32, 
+  csxid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP(DBLPType) primary key id;
+create dataset CSX(CSXType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.2.update.aql
new file mode 100644
index 0000000..923f6e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
+load dataset CSX
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/pub-small/csx-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.3.query.aql
new file mode 100644
index 0000000..f5ff114
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/leftouterjoin/query_issue285/query_issue285.3.query.aql
@@ -0,0 +1,23 @@
+/*
+ * Description    : Left-outer joins two datasets, DBLP and CSX, based on their title.
+ *                  DBLP has a secondary btree index on title, and given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *
+ *					TODO(@Sattam): given the 'indexnl' hint 
+ *                  we expect the join to be transformed into an indexed nested-loop join.
+ *					
+ *					regression test for issue 285--having an order by for the outer loop relation
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('DBLP')
+order by $a.id
+return {
+"aid": $a.id,
+"bids": for $b in dataset('CSX')
+where $a.authors = $b.authors
+order by $b.id
+return $b.id
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01.aql
deleted file mode 100644
index c4bbeae..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_any-collection-member_01.adm";
-
-let $x := {{1,1,1}}
-return $x[?]
- 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.2.update.aql
new file mode 100644
index 0000000..d148bc8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.2.update.aql
@@ -0,0 +1,2 @@
+
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.3.query.aql
new file mode 100644
index 0000000..8912343
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/any-collection-member_01/any-collection-member_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x := {{1,1,1}}
+return $x[?]
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/get-item_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01.aql
deleted file mode 100644
index 5bdd362..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/get-item_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_get-item_01.adm";
-
-let $x :=  [1, 2, 3, 4]
-return $x[2]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.3.query.aql
new file mode 100644
index 0000000..696e52b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/get-item_01/get-item_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $x :=  [1, 2, 3, 4]
+return $x[2]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_01.aql
deleted file mode 100644
index bd9fb11..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/len_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_len_01.adm";
-
-for $l in [1]
-return [
-  len([]), len([1]), len([1, 2]), len([1, 2, 3]), 
-  len({{}}), len({{1}}), len({{1, 2}}), len({{1, 2, 3}})]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.3.query.aql
new file mode 100644
index 0000000..9df5697
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/len_01/len_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $l in [1]
+return [
+  len([]), len([1]), len([1, 2]), len([1, 2, 3]), 
+  len({{}}), len({{1}}), len({{1, 2}}), len({{1, 2, 3}})]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_null_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01.aql
deleted file mode 100644
index 3966c12..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/len_null_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_len_null_01.adm";
-
-let $n := null
-return {"len1": len([]), "len2": $n}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.3.query.aql
new file mode 100644
index 0000000..34b6dd3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/len_null_01/len_null_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $n := null
+return {"len1": len([]), "len2": $n}
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_01.aql
deleted file mode 100644
index fe89111..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/listify_01.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_listify_01.adm";
-
-let $token_list := 
-  for $token in [1, 2, 3] return $token
-return $token_list
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.3.query.aql
new file mode 100644
index 0000000..b9bc2fa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_01/listify_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $token_list := 
+  for $token in [1, 2, 3] return $token
+return $token_list
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_02.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_02.aql
deleted file mode 100644
index 4fe1e0d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/listify_02.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_listify_02.adm";
-
-let $token_list := 
-  for $token in ["foo", "bar"] return $token
-return $token_list
-
-
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.3.query.aql
new file mode 100644
index 0000000..56c66de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_02/listify_02.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $token_list := 
+  for $token in ["foo", "bar"] return $token
+return $token_list
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.1.ddl.aql
new file mode 100644
index 0000000..21e1bcc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :  Test that a listify on a nullable type creates a homogeneous list of type ANY.
+ *                     Guards against regression to issue 186.
+ * Expected Result  :  Success
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.2.update.aql
new file mode 100644
index 0000000..3eea8d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :  Test that a listify on a nullable type creates a homogeneous list of type ANY.
+ *                     Guards against regression to issue 186.
+ * Expected Result  :  Success
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.3.query.aql
new file mode 100644
index 0000000..b1a00ef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/listify_03/listify_03.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description      :  Test that a listify on a nullable type creates a homogeneous list of type ANY.
+ *                     Guards against regression to issue 186.
+ * Expected Result  :  Success
+ */
+
+use dataverse test;
+
+// The for prohibits the subplan from being eliminated.
+for $x in [1, 2]
+let $y := (for $i in [[1,2,3],[10,20,30],[-2,-5,0]] return min($i))
+return min($y)
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01.aql
deleted file mode 100644
index f1e369b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_ordered-list-constructor_01.adm";
-
-[ "foo", "bar", "foobar" ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.3.query.aql
new file mode 100644
index 0000000..9d130d5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_01/ordered-list-constructor_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+[ "foo", "bar", "foobar" ]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02.aql
deleted file mode 100644
index c8d5262..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_ordered-list-constructor_02.adm";
-
-[ ["foo", "bar"], ["foobar"] ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.3.query.aql
new file mode 100644
index 0000000..35535b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_02/ordered-list-constructor_02.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+[ ["foo", "bar"], ["foobar"] ]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.3.query.aql
new file mode 100644
index 0000000..05c6029
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/ordered-list-constructor_03/ordered-list-constructor_03.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+[ null, null, null ]
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01.aql
deleted file mode 100644
index d63232c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_scan-collection_01.adm";
-
-for $u in [1, 2, 3]
-return $u
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.3.query.aql
new file mode 100644
index 0000000..82cd800
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/scan-collection_01/scan-collection_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $u in [1, 2, 3]
+return $u
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_01.aql
deleted file mode 100644
index 74671d5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/union_01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_union_01.adm";
-
-for $x in 
-({{1,3}} union {{1,2}})
-order by $x
-return $x
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.3.query.aql
new file mode 100644
index 0000000..515a6f4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/union_01/union_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $x in 
+({{1,3}} union {{1,2}})
+order by $x
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_02.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_02.aql
deleted file mode 100644
index dd9616d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/union_02.aql
+++ /dev/null
@@ -1,20 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_union_02.adm";
-
-for $z in (
-(
-for $x in {{3,2}}
-return $x
-)
-union
-(
-for $y in {{2,1}}
-return $y
-)
-)
-order by $z
-return $z
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.3.query.aql
new file mode 100644
index 0000000..05abdbc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/union_02/union_02.3.query.aql
@@ -0,0 +1,16 @@
+use dataverse test;
+
+for $z in (
+(
+for $x in {{3,2}}
+return $x
+)
+union
+(
+for $y in {{2,1}}
+return $y
+)
+)
+order by $z
+return $z
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01.aql
deleted file mode 100644
index bc6f935..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_unordered-list-constructor_01.adm";
-
-{{ "foo", "bar", "foobar" }}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.3.query.aql
new file mode 100644
index 0000000..df00119
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_01/unordered-list-constructor_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+{{ "foo", "bar", "foobar" }}
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02.aql
deleted file mode 100644
index 267db4d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/list_unordered-list-constructor_02.adm";
-
-{{ {{"foo"}}, {{"bar", "foobar"}} }}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.3.query.aql
new file mode 100644
index 0000000..a69024f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_02/unordered-list-constructor_02.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+{{ {{"foo"}}, {{"bar", "foobar"}} }}
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.3.query.aql
new file mode 100644
index 0000000..86365cf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/list/unordered-list-constructor_03/unordered-list-constructor_03.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+{{ null, null, null }}
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.1.ddl.aql
new file mode 100644
index 0000000..0846e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : Create and load a dataset but with an unspecified data format.
+ * Expected Res : Failure
+ * Date         : 16 Jan 2012
+ */
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Schema as closed{
+id: int32,
+age: int32,
+name: string
+}
+
+create dataset onektup(Schema)
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.2.update.aql
new file mode 100644
index 0000000..1c780d6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create and load a dataset but with an unspecified data format.
+ * Expected Res : Failure
+ * Date         : 16 Jan 2012
+ */
+use dataverse test;
+
+load dataset onektup 
+using localfs(("path"="nc1:///tmp/one.adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.3.query.aql
new file mode 100644
index 0000000..6e60c76
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue14_query/issue14_query.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create and load a dataset but with an unspecified data format.
+ * Expected Res : Failure
+ * Date         : 16 Jan 2012
+ */
+use dataverse test;
+
+for $l in dataset('onektup')
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.1.ddl.aql
new file mode 100644
index 0000000..b9683dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Description  : Load dataset with float numbers containing "E-4f"
+ * Expected Res : Success
+ * Date         : 01 Apr 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as closed {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create dataset Customers(CustomerType) 
+primary key cid;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.2.update.aql
new file mode 100644
index 0000000..f0671ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Load dataset with float numbers containing "E-4f"
+ * Expected Res : Success
+ * Date         : 01 Apr 2013
+ */
+ 
+use dataverse test;
+
+load dataset Customers
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/custord-tiny/customer-tiny-neg.adm"),("format"="adm")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.3.query.aql
new file mode 100644
index 0000000..1d2c9b6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue289_query/issue289_query.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Load dataset with float numbers containing "E-4f"
+ * Expected Res : Success
+ * Date         : 01 Apr 2013
+ */
+ 
+use dataverse test;
+
+count(
+for $l in dataset('Customers')
+return $l
+)
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.1.ddl.aql
new file mode 100644
index 0000000..b8dd663
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : Create and load a dataset but provide an invalid path argument with a missing ':'
+ * Expected Res : Failure
+ * Date         : 5 Apr 2013
+ */
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Schema as closed{
+id: int32,
+age: int32,
+name: string
+}
+
+create dataset onektup(Schema)
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.2.update.aql
new file mode 100644
index 0000000..27d8215
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/load/issue315_query/issue315_query.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create and load a dataset but provide an invalid path with a missing ':'
+ * Expected Res : Failure
+ * Date         : 5 Apr 2013
+ */
+use dataverse test;
+
+load dataset onektup 
+using localfs(("path"="nc1///tmp/one.adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.3.query.aql
new file mode 100644
index 0000000..7d00ff3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/float_01/float_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $f in [1f, 1F, 1.1f, 1.1F, .1f, .1F]
+return $f
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.1.ddl.aql
new file mode 100644
index 0000000..4a5848c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse twitter if exists;
+create dataverse twitter;
+
+use dataverse twitter;
+
+create type Tweet as open {
+  id: int32,
+  tweetid: int64,
+  loc: point,
+  time: datetime,
+  text: string
+}
+
+create external dataset TwitterData(Tweet)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.3.query.aql
new file mode 100644
index 0000000..f45c101
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/groupby-orderby-count/groupby-orderby-count.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse twitter;
+
+for $t in dataset('TwitterData')
+let $tokens := word-tokens($t.text)
+for $token in $tokens
+group by $tok := $token with $token
+order by count($token) desc, $tok asc
+return { "word": $tok, "count": count($token) }
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.1.ddl.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.3.query.aql
new file mode 100644
index 0000000..8f33bf4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/ifthenelse_01/ifthenelse_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+if (2>1) then
+    20
+else
+    10
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.3.query.aql
new file mode 100644
index 0000000..7725698
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/is-null_01/is-null_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+[is-null(null), is-null(10)]
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.1.ddl.aql
new file mode 100644
index 0000000..67ad586
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type UserType as open {
+  uid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create type VisitorType as open {
+  vid: int32, 
+  name: string,
+  lottery_numbers: [int32],
+  interests: {{string}}
+}
+
+create dataset Users(UserType) primary key uid;
+create dataset Visitors(VisitorType) primary key vid;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.2.update.aql
new file mode 100644
index 0000000..caa966a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset Users 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
+
+load dataset Visitors 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.3.query.aql
new file mode 100644
index 0000000..f905f63
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/nested-loop-join_01/nested-loop-join_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $user in dataset('Users')
+for $visitor in dataset('Visitors')
+where len($user.lottery_numbers) = len($visitor.lottery_numbers)
+order by $user.uid, $visitor.vid
+return {'user': $user, 'visitor': $visitor, 'user-lottery_numbers-len': len($user.lottery_numbers), 'visitor-lottery_numbers-len': len($visitor.lottery_numbers)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.1.ddl.aql
new file mode 100644
index 0000000..da25235
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tries to partition a dataset by a non-existent field
+ * Expected Result: An error reporting that this is not allowed
+ * Author: zheilbron
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open{
+name1:string
+}
+
+create dataset testds(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.2.update.aql
new file mode 100644
index 0000000..253fd75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tries to partition a dataset by a non-existent field
+ * Expected Result: An error reporting that this is not allowed
+ * Author: zheilbron
+ */
+ 
+use dataverse test;
+
+insert into dataset testds({"name1":"John","name2":"Smith"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.3.query.aql
new file mode 100644
index 0000000..05a6afe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/partition-by-nonexistent-field/partition-by-nonexistent-field.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tries to partition a dataset by a non-existent field
+ * Expected Result: An error reporting that this is not allowed
+ * Author: zheilbron
+ */
+
+use dataverse test;
+
+for $l in dataset('testds')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.1.ddl.aql
new file mode 100644
index 0000000..ba4e9c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.3.query.aql
new file mode 100644
index 0000000..439c244
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/range_01/range_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in range(20,30)
+return $x
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.3.query.aql
new file mode 100644
index 0000000..49e017a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/tid_01/tid_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x at $i in ["a","b","c"]
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.3.query.aql
new file mode 100644
index 0000000..5a2fb7b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/misc/year_01/year_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+year("1996-12-01")
diff --git a/asterix-app/src/test/resources/runtimets/queries/nested-loop-join_01.aql b/asterix-app/src/test/resources/runtimets/queries/nested-loop-join_01.aql
deleted file mode 100644
index 876648b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/nested-loop-join_01.aql
+++ /dev/null
@@ -1,39 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type UserType as open {
-  uid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create type VisitorType as open {
-  vid: int32, 
-  name: string,
-  lottery_numbers: [int32],
-  interests: {{string}}
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset Users(UserType) partitioned by key uid on group1;
-create dataset Visitors(VisitorType) partitioned by key vid on group1;
-
-
-load dataset Users 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/users-visitors-small/users.json"),("format"="adm"));
-
-load dataset Visitors 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/users-visitors-small/visitors.json"),("format"="adm"));
-
-write output to nc1:'rttest/nested-loop-join_01.adm';
-
-for $user in dataset('Users')
-for $visitor in dataset('Visitors')
-where len($user.lottery_numbers) = len($visitor.lottery_numbers)
-order by $user.uid, $visitor.vid
-return {'user': $user, 'visitor': $visitor, 'user-lottery_numbers-len': len($user.lottery_numbers), 'visitor-lottery_numbers-len': len($visitor.lottery_numbers)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.1.ddl.aql
new file mode 100644
index 0000000..70c3d0e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.1.ddl.aql
@@ -0,0 +1,23 @@
+/* 
+ * Test case Name  : nestrecord.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type AddressType as open{
+  street: string,
+  city: string
+}
+
+create type testtype as open {
+  name: string,
+  id: string,
+  address: AddressType?
+}
+
+create dataset testds(testtype) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.2.update.aql
new file mode 100644
index 0000000..bca3929
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.2.update.aql
@@ -0,0 +1,24 @@
+/* 
+ * Test case Name  : nestrecord.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds (
+{ "id": "001", "name": "Person One", "address": {"street": "3019 DBH",  "city": "Irvine", "zip": 92697} }
+);
+
+insert into dataset testds (
+{ "id": "002", "name": "Person Two" }
+);
+
+insert into dataset testds (
+{ "id": "003", "name": "Person Three", "address": {"street": "2019 DBH",  "city": "Irvine"} }
+);
+
+insert into dataset testds (
+{ "id": "004", "name": "Person Four", "home": {"street": "2019 DBH",  "city": {"name": "Irvine", "zip": 92697} } }
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.3.query.aql
new file mode 100644
index 0000000..24a3cb1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/nestrecords/nestrecord/nestrecord.3.query.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : nestrecord.aql
+ * Description     : verify the static casting of nest record constants 
+ * Expected Result : Success
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds") 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.3.query.aql
new file mode 100644
index 0000000..b86c67a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs0/abs0.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-abs($c0), "f1": numeric-abs($c1),"f2": numeric-abs($c2), "f3": numeric-abs($c3),
+	"f4": numeric-abs($c4),"f5": numeric-abs($c5) ,"f6": numeric-abs($c6), "f7": numeric-abs($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.3.query.aql
new file mode 100644
index 0000000..cac32e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs1/abs1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-abs($c0), "f1": numeric-abs($c1),"f2": numeric-abs($c2), "f3": numeric-abs($c3),
+	"f4": numeric-abs($c4),"f5": numeric-abs($c5) ,"f6": numeric-abs($c6), "f7": numeric-abs($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.3.query.aql
new file mode 100644
index 0000000..4307a04
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs2/abs2.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := float("-20.1")
+let $c1 := float("-20.56e-30")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"f0": numeric-abs($c0), "f1": numeric-abs($c1),"f2": numeric-abs($c2),
+        "f3": numeric-abs($c3),"f4": numeric-abs($c4),"f5": numeric-abs($c5), "f6": numeric-abs($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.3.query.aql
new file mode 100644
index 0000000..691654f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs3/abs3.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("-20.1")
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-abs($c0), "d1": numeric-abs($c1),"d2": numeric-abs($c2),
+        "d3": numeric-abs($c3),"d4": numeric-abs($c4),"d5": numeric-abs($c5), "d6": numeric-abs($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.3.query.aql
new file mode 100644
index 0000000..1c490cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/abs4/abs4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+return {"f0": numeric-abs($c0), "f1": numeric-abs(-1.11),"f2": numeric-abs(12.9), "f3": numeric-abs(1.11)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_double.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double.aql
deleted file mode 100644
index 7275ddd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_double.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_double.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c6+$c1,"result2": $c6+$c2,"result3": $c6+$c3,"result4": $c6+$c4,"result5": $c6+$c5, "result6": $c6+$c6, "result7": $c6+$c8 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.3.query.aql
new file mode 100644
index 0000000..d8e5e03
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_double/add_double.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c6+$c1,"result2": $c6+$c2,"result3": $c6+$c3,"result4": $c6+$c4,"result5": $c6+$c5, "result6": $c6+$c6, "result7": $c6+$c8 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_float.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float.aql
deleted file mode 100644
index c833d1a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_float.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_float.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c5+$c1,"result2": $c5+$c2,"result3": $c5+$c3,"result4": $c5+$c4,"result5": $c5+$c5, "result6": $c5+$c6, "result7": $c6+$c8 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.3.query.aql
new file mode 100644
index 0000000..821de17
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_float/add_float.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c5+$c1,"result2": $c5+$c2,"result3": $c5+$c3,"result4": $c5+$c4,"result5": $c5+$c5, "result6": $c5+$c6, "result7": $c6+$c8 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16.aql
deleted file mode 100644
index 9d4c98b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_int16.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c2+$c1,"result2": $c2+$c2,"result3": $c2+$c3,"result4": $c2+$c4,"result5": $c2+$c5, "result6": $c2+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.3.query.aql
new file mode 100644
index 0000000..042d5fc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int16/add_int16.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c2+$c1,"result2": $c2+$c2,"result3": $c2+$c3,"result4": $c2+$c4,"result5": $c2+$c5, "result6": $c2+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32.aql
deleted file mode 100644
index 51dda5a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_int32.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c3+$c1,"result2": $c3+$c2,"result3": $c3+$c3,"result4": $c3+$c4,"result5": $c3+$c5, "result6": $c3+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.3.query.aql
new file mode 100644
index 0000000..8580f06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int32/add_int32.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c3+$c1,"result2": $c3+$c2,"result3": $c3+$c3,"result4": $c3+$c4,"result5": $c3+$c5, "result6": $c3+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64.aql
deleted file mode 100644
index 64fc6a5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_int64.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c4+$c1,"result2": $c4+$c2,"result3": $c4+$c3,"result4": $c4+$c4,"result5": $c4+$c5, "result6": $c4+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.3.query.aql
new file mode 100644
index 0000000..7b1805d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int64/add_int64.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c4+$c1,"result2": $c4+$c2,"result3": $c4+$c3,"result4": $c4+$c4,"result5": $c4+$c5, "result6": $c4+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8.aql
deleted file mode 100644
index 9d3bb3f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_add_int8.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c1+$c1,"result2": $c1+$c2,"result3": $c1+$c3,"result4": $c1+$c4,"result5": $c1+$c5, "result6": $c1+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.3.query.aql
new file mode 100644
index 0000000..42566d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/add_int8/add_int8.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c1+$c1,"result2": $c1+$c2,"result3": $c1+$c3,"result4": $c1+$c4,"result5": $c1+$c5, "result6": $c1+$c6, "result7": $c6+$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.3.query.aql
new file mode 100644
index 0000000..b5d24d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling0/ceiling0.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-ceiling($c0), "f1": numeric-ceiling($c1),"f2": numeric-ceiling($c2), "f3": numeric-ceiling($c3),
+	"f4": numeric-ceiling($c4),"f5": numeric-ceiling($c5) ,"f6": numeric-ceiling($c6), "f7": numeric-ceiling($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.3.query.aql
new file mode 100644
index 0000000..b40dc003
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling1/ceiling1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-ceiling($c0), "f1": numeric-ceiling($c1),"f2": numeric-ceiling($c2), "f3": numeric-ceiling($c3),
+	"f4": numeric-ceiling($c4),"f5": numeric-ceiling($c5) ,"f6": numeric-ceiling($c6), "f7": numeric-ceiling($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.3.query.aql
new file mode 100644
index 0000000..6d6b7a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling2/ceiling2.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := float("20.1")
+let $c1 := float("-20.56e-30")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"f0": numeric-ceiling($c0), "f1": numeric-ceiling($c1),"f2": numeric-ceiling($c2),
+        "f3": numeric-ceiling($c3),"f4": numeric-ceiling($c4),"f5": numeric-ceiling($c5), "f6": numeric-ceiling($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.3.query.aql
new file mode 100644
index 0000000..51ecbf5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling3/ceiling3.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("20.1")
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-ceiling($c0), "d1": numeric-ceiling($c1),"d2": numeric-ceiling($c2),
+        "d3": numeric-ceiling($c3),"d4": numeric-ceiling($c4),"d5": numeric-ceiling($c5), "d6": numeric-ceiling($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.3.query.aql
new file mode 100644
index 0000000..4d3b3ef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/ceiling4/ceiling4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+return {"f0": numeric-ceiling($c0), "f1": numeric-ceiling(-1.11),"f2": numeric-ceiling(12.9), "f3": numeric-ceiling(1.11)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double.aql
deleted file mode 100644
index 9b3412d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_double.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c6/$c1,"result2": $c6/$c2,"result3": $c6/$c3,"result4": $c6/$c4,"result5": $c6/$c5, "result6": $c6/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.3.query.aql
new file mode 100644
index 0000000..71027c5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_double/divide_double.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c6/$c1,"result2": $c6/$c2,"result3": $c6/$c3,"result4": $c6/$c4,"result5": $c6/$c5, "result6": $c6/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float.aql
deleted file mode 100644
index ac8b2cb..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_float.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c5/$c1,"result2": $c5/$c2,"result3": $c5/$c3,"result4": $c5/$c4,"result5": $c5/$c5, "result6": $c5/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.3.query.aql
new file mode 100644
index 0000000..2f3ba46
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_float/divide_float.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c5/$c1,"result2": $c5/$c2,"result3": $c5/$c3,"result4": $c5/$c4,"result5": $c5/$c5, "result6": $c5/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16.aql
deleted file mode 100644
index afda7f5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_int16.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c2/$c1,"result2": $c2/$c2,"result3": $c2/$c3,"result4": $c2/$c4,"result5": $c2/$c5, "result6": $c2/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.3.query.aql
new file mode 100644
index 0000000..a441651
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int16/divide_int16.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c2/$c1,"result2": $c2/$c2,"result3": $c2/$c3,"result4": $c2/$c4,"result5": $c2/$c5, "result6": $c2/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32.aql
deleted file mode 100644
index b5305c3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_int32.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c3/$c1,"result2": $c3/$c2,"result3": $c3/$c3,"result4": $c3/$c4,"result5": $c3/$c5, "result6": $c3/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.3.query.aql
new file mode 100644
index 0000000..2362f53
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int32/divide_int32.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c3/$c1,"result2": $c3/$c2,"result3": $c3/$c3,"result4": $c3/$c4,"result5": $c3/$c5, "result6": $c3/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64.aql
deleted file mode 100644
index f4239b1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_int64.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c4/$c1,"result2": $c4/$c2,"result3": $c4/$c3,"result4": $c4/$c4,"result5": $c4/$c5, "result6": $c4/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.3.query.aql
new file mode 100644
index 0000000..f8bbe0d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int64/divide_int64.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c4/$c1,"result2": $c4/$c2,"result3": $c4/$c3,"result4": $c4/$c4,"result5": $c4/$c5, "result6": $c4/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8.aql
deleted file mode 100644
index a38ba28..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_divide_int8.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c1/$c1,"result2": $c1/$c2,"result3": $c1/$c3,"result4": $c1/$c4,"result5": $c1/$c5, "result6": $c1/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.3.query.aql
new file mode 100644
index 0000000..274d86b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/divide_int8/divide_int8.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c1/$c1,"result2": $c1/$c2,"result3": $c1/$c3,"result4": $c1/$c4,"result5": $c1/$c5, "result6": $c1/$c6, "result7": $c6/$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.3.query.aql
new file mode 100644
index 0000000..64bec24
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor0/floor0.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-floor($c0), "f1": numeric-floor($c1),"f2": numeric-floor($c2), "f3": numeric-floor($c3),
+	"f4": numeric-floor($c4),"f5": numeric-floor($c5) ,"f6": numeric-floor($c6), "f7": numeric-floor($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.3.query.aql
new file mode 100644
index 0000000..2edc17a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor1/floor1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-floor($c0), "f1": numeric-floor($c1),"f2": numeric-floor($c2), "f3": numeric-floor($c3),
+	"f4": numeric-floor($c4),"f5": numeric-floor($c5) ,"f6": numeric-floor($c6), "f7": numeric-floor($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.3.query.aql
new file mode 100644
index 0000000..89c408d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor2/floor2.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := float("20.1")
+let $c1 := float("-20.56e-30")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"f0": numeric-floor($c0), "f1": numeric-floor($c1),"f2": numeric-floor($c2),
+        "f3": numeric-floor($c3),"f4": numeric-floor($c4),"f5": numeric-floor($c5), "f6": numeric-floor($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.3.query.aql
new file mode 100644
index 0000000..66b2183
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor3/floor3.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("20.1")
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-floor($c0), "d1": numeric-floor($c1),"d2": numeric-floor($c2),
+        "d3": numeric-floor($c3),"d4": numeric-floor($c4),"d5": numeric-floor($c5), "d6": numeric-floor($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.3.query.aql
new file mode 100644
index 0000000..77c6069
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/floor4/floor4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+return {"f0": numeric-floor($c0), "f1": numeric-floor(-1.11),"f2": numeric-floor(12.9), "f3": numeric-floor(1.11)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double.aql
deleted file mode 100644
index 3e74b2d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_double.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c6*$c1,"result2": $c6*$c2,"result3": $c6*$c3,"result4": $c6*$c4,"result5": $c6*$c5, "result6": $c6*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.3.query.aql
new file mode 100644
index 0000000..b28a063
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_double/multiply_double.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c6*$c1,"result2": $c6*$c2,"result3": $c6*$c3,"result4": $c6*$c4,"result5": $c6*$c5, "result6": $c6*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float.aql
deleted file mode 100644
index 64a5601..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_float.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c5*$c1,"result2": $c5*$c2,"result3": $c5*$c3,"result4": $c5*$c4,"result5": $c5*$c5, "result6": $c5*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.3.query.aql
new file mode 100644
index 0000000..eff6419
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_float/multiply_float.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c5*$c1,"result2": $c5*$c2,"result3": $c5*$c3,"result4": $c5*$c4,"result5": $c5*$c5, "result6": $c5*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16.aql
deleted file mode 100644
index 18c3dd8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_int16.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c2*$c1,"result2": $c2*$c2,"result3": $c2*$c3,"result4": $c2*$c4,"result5": $c2*$c5, "result6": $c2*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.3.query.aql
new file mode 100644
index 0000000..fa32d80
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int16/multiply_int16.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c2*$c1,"result2": $c2*$c2,"result3": $c2*$c3,"result4": $c2*$c4,"result5": $c2*$c5, "result6": $c2*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32.aql
deleted file mode 100644
index 72d29c3..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_int32.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c3*$c1,"result2": $c3*$c2,"result3": $c3*$c3,"result4": $c3*$c4,"result5": $c3*$c5, "result6": $c3*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.3.query.aql
new file mode 100644
index 0000000..ba40d6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int32/multiply_int32.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c3*$c1,"result2": $c3*$c2,"result3": $c3*$c3,"result4": $c3*$c4,"result5": $c3*$c5, "result6": $c3*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64.aql
deleted file mode 100644
index c734dc7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_int64.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c4*$c1,"result2": $c4*$c2,"result3": $c4*$c3,"result4": $c4*$c4,"result5": $c4*$c5, "result6": $c4*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.3.query.aql
new file mode 100644
index 0000000..3d68417
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int64/multiply_int64.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c4*$c1,"result2": $c4*$c2,"result3": $c4*$c3,"result4": $c4*$c4,"result5": $c4*$c5, "result6": $c4*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8.aql
deleted file mode 100644
index f65b61d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_multiply_int8.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c1*$c1,"result2": $c1*$c2,"result3": $c1*$c3,"result4": $c1*$c4,"result5": $c1*$c5, "result6": $c1*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.3.query.aql
new file mode 100644
index 0000000..12f0792
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/multiply_int8/multiply_int8.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c1*$c1,"result2": $c1*$c2,"result3": $c1*$c3,"result4": $c1*$c4,"result5": $c1*$c5, "result6": $c1*$c6, "result7": $c6*$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.3.query.aql
new file mode 100644
index 0000000..6c5e177
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even0/round-half-to-even0.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-round-half-to-even($c0), "f1": numeric-round-half-to-even($c1),"f2": numeric-round-half-to-even($c2), "f3": numeric-round-half-to-even($c3),
+	"f4": numeric-round-half-to-even($c4),"f5": numeric-round-half-to-even($c5) ,"f6": numeric-round-half-to-even($c6), "f7": numeric-round-half-to-even($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.3.query.aql
new file mode 100644
index 0000000..271b0c3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even1/round-half-to-even1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-round-half-to-even($c0), "f1": numeric-round-half-to-even($c1),"f2": numeric-round-half-to-even($c2), "f3": numeric-round-half-to-even($c3),
+	"f4": numeric-round-half-to-even($c4),"f5": numeric-round-half-to-even($c5) ,"f6": numeric-round-half-to-even($c6), "f7": numeric-round-half-to-even($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.3.query.aql
new file mode 100644
index 0000000..f420b2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even2/round-half-to-even2.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+
+let $c0 := float("0.5")
+let $c1 := float("-20.5")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"f0": numeric-round-half-to-even($c0), "f1": numeric-round-half-to-even($c1),"f2": numeric-round-half-to-even($c2),
+        "f3": numeric-round-half-to-even($c3),"f4": numeric-round-half-to-even($c4),"f5": numeric-round-half-to-even($c5), "f6": numeric-round-half-to-even($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.3.query.aql
new file mode 100644
index 0000000..d14fb40
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even20/round-half-to-even20.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-round-half-to-even($c0,2), "f1": numeric-round-half-to-even($c1,2),"f2": numeric-round-half-to-even($c2,2), "f3": numeric-round-half-to-even($c3,2),
+	"f4": numeric-round-half-to-even($c4,2),"f5": numeric-round-half-to-even($c5,2) ,"f6": numeric-round-half-to-even($c6,2), "f7": numeric-round-half-to-even($c7,2)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.3.query.aql
new file mode 100644
index 0000000..958a63d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even21/round-half-to-even21.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-round-half-to-even($c0,2), "f1": numeric-round-half-to-even($c1,2),"f2": numeric-round-half-to-even($c2,2), "f3": numeric-round-half-to-even($c3,2),
+	"f4": numeric-round-half-to-even($c4,2),"f5": numeric-round-half-to-even($c5,2) ,"f6": numeric-round-half-to-even($c6,2), "f7": numeric-round-half-to-even($c7,2)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.3.query.aql
new file mode 100644
index 0000000..e9aa46c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even22/round-half-to-even22.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := float("0.555")
+let $c1 := float("0.322")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"d0": numeric-round-half-to-even($c0,2), "d1": numeric-round-half-to-even($c1,2),"d2": numeric-round-half-to-even($c2,3),
+        "d3": numeric-round-half-to-even($c3,4),"d4": numeric-round-half-to-even($c4,5),"d5": numeric-round-half-to-even($c5,6), "d6": numeric-round-half-to-even($c6,0)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.3.query.aql
new file mode 100644
index 0000000..8fe4615
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even23/round-half-to-even23.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("0.555")
+let $c1 := double("0.322")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-round-half-to-even($c0,2), "d1": numeric-round-half-to-even($c1,2),"d2": numeric-round-half-to-even($c2,3),
+        "d3": numeric-round-half-to-even($c3,4),"d4": numeric-round-half-to-even($c4,5),"d5": numeric-round-half-to-even($c5,6), "d6": numeric-round-half-to-even($c6,0)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.3.query.aql
new file mode 100644
index 0000000..9b3095f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even24/round-half-to-even24.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+let $c0 := double("0.015")
+let $c1 := double("0.025")
+let $c2 := double("3.567812E+3")
+let $c3 := double("4.7564E-3")
+let $c4 := double("35612.25")
+return {"d0": numeric-round-half-to-even($c0,2), "d1": numeric-round-half-to-even($c1,2),"d2": numeric-round-half-to-even($c2,2),
+        "d3": numeric-round-half-to-even($c3,2),"d4": numeric-round-half-to-even($c4,-2)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.3.query.aql
new file mode 100644
index 0000000..e9c4587
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even3/round-half-to-even3.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("0.5")
+let $c1 := double("-20.5")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-round-half-to-even($c0), "d1": numeric-round-half-to-even($c1), "d2": numeric-round-half-to-even($c2),
+        "d3": numeric-round-half-to-even($c3), "d4": numeric-round-half-to-even($c4), "d5": numeric-round-half-to-even($c5), "d6": numeric-round-half-to-even($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.3.query.aql
new file mode 100644
index 0000000..b678603
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even4/round-half-to-even4.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $c0 := double("1.5")
+let $c1 := double("2.5")
+return {"d0": numeric-round-half-to-even($c0), "d1": numeric-round-half-to-even($c1)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.3.query.aql
new file mode 100644
index 0000000..63a6acd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round-half-to-even5/round-half-to-even5.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+return {"f0": numeric-round-half-to-even($c0), "f1": numeric-round-half-to-even(-1.5),"f2": numeric-round-half-to-even(12.5), "f3": numeric-round-half-to-even(1.5)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.3.query.aql
new file mode 100644
index 0000000..3ecd6a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round0/round0.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-0")
+let $c1 := int16("-0")
+let $c2 := int32("-0")
+let $c3 := int64("-0")
+let $c4 := int8("0")
+let $c5 := int16("0")
+let $c6 := int32("0")
+let $c7 := int64("0")
+return {"f0": numeric-round($c0), "f1": numeric-round($c1),"f2": numeric-round($c2), "f3": numeric-round($c3),
+	"f4": numeric-round($c4),"f5": numeric-round($c5) ,"f6": numeric-round($c6), "f7": numeric-round($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.3.query.aql
new file mode 100644
index 0000000..5a66f35
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round1/round1.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+let $c1 := int16("-23")
+let $c2 := int32("-29")
+let $c3 := int64("-21")
+let $c4 := int8("20")
+let $c5 := int16("22")
+let $c6 := int32("23")
+let $c7 := int64("27")
+return {"f0": numeric-round($c0), "f1": numeric-round($c1),"f2": numeric-round($c2), "f3": numeric-round($c3),
+	"f4": numeric-round($c4),"f5": numeric-round($c5) ,"f6": numeric-round($c6), "f7": numeric-round($c7)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.3.query.aql
new file mode 100644
index 0000000..941b606
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round2/round2.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := float("20.1")
+let $c1 := float("-20.56e-30")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+let $c5 := float("-0.0")
+let $c6 := float("0.0")
+return {"f0": numeric-round($c0), "f1": numeric-round($c1),"f2": numeric-round($c2),
+        "f3": numeric-round($c3),"f4": numeric-round($c4),"f5": numeric-round($c5), "f6": numeric-round($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.3.query.aql
new file mode 100644
index 0000000..90aa1e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round3/round3.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c0 := double("20.1")
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+let $c5 := double("-0.0")
+let $c6 := double("0.0")
+return {"d0": numeric-round($c0), "d1": numeric-round($c1),"d2": numeric-round($c2),
+        "d3": numeric-round($c3),"d4": numeric-round($c4),"d5": numeric-round($c5), "d6": numeric-round($c6)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.3.query.aql
new file mode 100644
index 0000000..49646b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/round4/round4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c0 := int8("-20")
+return {"f0": numeric-round($c0), "f1": numeric-round(-1.11),"f2": numeric-round(12.9), "f3": numeric-round(1.11)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double.aql
deleted file mode 100644
index 46115b6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_double.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c6 -$c1,"result2": $c6 -$c2,"result3": $c6 -$c3,"result4": $c6 -$c4,"result5": $c6 -$c5, "result6": $c6 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.3.query.aql
new file mode 100644
index 0000000..c30a09d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_double/subtract_double.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c6 -$c1,"result2": $c6 -$c2,"result3": $c6 -$c3,"result4": $c6 -$c4,"result5": $c6 -$c5, "result6": $c6 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float.aql
deleted file mode 100644
index e20e43c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_float.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c5 -$c1,"result2": $c5 -$c2,"result3": $c5 -$c3,"result4": $c5 -$c4,"result5": $c5 -$c5, "result6": $c5 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.3.query.aql
new file mode 100644
index 0000000..db4d076
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_float/subtract_float.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c5 -$c1,"result2": $c5 -$c2,"result3": $c5 -$c3,"result4": $c5 -$c4,"result5": $c5 -$c5, "result6": $c5 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16.aql
deleted file mode 100644
index 3fea866..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_int16.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c2 -$c1,"result2": $c2 -$c2,"result3": $c2 -$c3,"result4": $c2 -$c4,"result5": $c2 -$c5, "result6": $c2 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.3.query.aql
new file mode 100644
index 0000000..bdc786c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int16/subtract_int16.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c2 -$c1,"result2": $c2 -$c2,"result3": $c2 -$c3,"result4": $c2 -$c4,"result5": $c2 -$c5, "result6": $c2 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32.aql
deleted file mode 100644
index b668402..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_int32.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c3 -$c1,"result2": $c3 -$c2,"result3": $c3 -$c3,"result4": $c3 -$c4,"result5": $c3 -$c5, "result6": $c3 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.3.query.aql
new file mode 100644
index 0000000..e280613
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int32/subtract_int32.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c3 -$c1,"result2": $c3 -$c2,"result3": $c3 -$c3,"result4": $c3 -$c4,"result5": $c3 -$c5, "result6": $c3 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64.aql
deleted file mode 100644
index cb8cdda..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_int64.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c4 -$c1,"result2": $c4 -$c2,"result3": $c4 -$c3,"result4": $c4 -$c4,"result5": $c4 -$c5, "result6": $c4 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.3.query.aql
new file mode 100644
index 0000000..53bb82a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int64/subtract_int64.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c4 -$c1,"result2": $c4 -$c2,"result3": $c4 -$c3,"result4": $c4 -$c4,"result5": $c4 -$c5, "result6": $c4 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8.aql
deleted file mode 100644
index f9afed0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_subtract_int8.adm";
-
-let $c1 := int8("+1")
-let $c2 := int16("2")
-let $c3 := int32("+3")
-let $c4 := int64("-4")
-let $c5 := float("-5.5f")
-let $c6 := double("-6.5d")
-let $c7 := [1]
-let $c8 := $c7[1]
-return {"result1": $c1 -$c1,"result2": $c1 -$c2,"result3": $c1 -$c3,"result4": $c1 -$c4,"result5": $c1 -$c5, "result6": $c1 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.3.query.aql
new file mode 100644
index 0000000..79d11a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/subtract_int8/subtract_int8.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := int8("+1")
+let $c2 := int16("2")
+let $c3 := int32("+3")
+let $c4 := int64("-4")
+let $c5 := float("-5.5f")
+let $c6 := double("-6.5d")
+let $c7 := [1]
+let $c8 := $c7[1]
+return {"result1": $c1 -$c1,"result2": $c1 -$c2,"result3": $c1 -$c3,"result4": $c1 -$c4,"result5": $c1 -$c5, "result6": $c1 -$c6, "result7": $c6 -$c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01.aql
deleted file mode 100644
index d10860c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_double_01.adm";
-
-let $c1 := double("-20.56e-30")
-let $c2 := double("NaN")
-let $c3 := double("INF")
-let $c4 := double("-INF")
-return {"double1": numeric-unary-minus($c1),"double2": numeric-unary-minus($c2),"double3": numeric-unary-minus($c3),"double4": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.3.query.aql
new file mode 100644
index 0000000..169ca39
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_01/unary-minus_double_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+return {"double1": numeric-unary-minus($c1),"double2": numeric-unary-minus($c2),"double3": numeric-unary-minus($c3),"double4": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02.aql
deleted file mode 100644
index e13a929..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_double_02.adm";
-
-let $c1 := double("-20.56e-30")
-let $c2 := double("NaN")
-let $c3 := double("INF")
-let $c4 := double("-INF")
-return {"double1": -$c1,"double2": -$c2,"double3": -$c3,"double4": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.3.query.aql
new file mode 100644
index 0000000..faab506
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_double_02/unary-minus_double_02.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := double("-20.56e-30")
+let $c2 := double("NaN")
+let $c3 := double("INF")
+let $c4 := double("-INF")
+return {"double1": -$c1,"double2": -$c2,"double3": -$c3,"double4": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01.aql
deleted file mode 100644
index fe7d11c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_float_01.adm";
-
-let $c1 := float("-80.20f")
-let $c2 := float("NaN")
-let $c3 := float("INF")
-let $c4 := float("-INF")
-return {"float1": numeric-unary-minus($c1),"float2": numeric-unary-minus($c2),"float3": numeric-unary-minus($c3),"float4": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.3.query.aql
new file mode 100644
index 0000000..e5e0071
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_01/unary-minus_float_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := float("-80.20f")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+return {"float1": numeric-unary-minus($c1),"float2": numeric-unary-minus($c2),"float3": numeric-unary-minus($c3),"float4": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02.aql
deleted file mode 100644
index 9c0d590..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_float_02.adm";
-
-let $c1 := float("-80.20f")
-let $c2 := float("NaN")
-let $c3 := float("INF")
-let $c4 := float("-INF")
-return {"float1": -$c1,"float2": -$c2,"float3": -$c3,"float4": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.3.query.aql
new file mode 100644
index 0000000..a57e8a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_float_02/unary-minus_float_02.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := float("-80.20f")
+let $c2 := float("NaN")
+let $c3 := float("INF")
+let $c4 := float("-INF")
+return {"float1": -$c1,"float2": -$c2,"float3": -$c3,"float4": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01.aql
deleted file mode 100644
index 10a5b69..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_int_01.adm";
-
-let $c1 := int8("+80")
-let $c2 := int16("160")
-let $c3 := int32("+320")
-let $c4 := int64("-640")
-return {"int8": numeric-unary-minus($c1),"int16": numeric-unary-minus($c2),"int32": numeric-unary-minus($c3),"int64": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.3.query.aql
new file mode 100644
index 0000000..660e55f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_01/unary-minus_int_01.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := int8("+80")
+let $c2 := int16("160")
+let $c3 := int32("+320")
+let $c4 := int64("-640")
+return {"int8": numeric-unary-minus($c1),"int16": numeric-unary-minus($c2),"int32": numeric-unary-minus($c3),"int64": numeric-unary-minus($c4)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02.aql
deleted file mode 100644
index 58acf8b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_int_02.adm";
-
-let $c1 := int8("+80")
-let $c2 := int16("160")
-let $c3 := int32("+320")
-let $c4 := int64("-640")
-return {"int8": -$c1,"int16": -$c2,"int32": -$c3,"int64": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.3.query.aql
new file mode 100644
index 0000000..2a9e116
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_int_02/unary-minus_int_02.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := int8("+80")
+let $c2 := int16("160")
+let $c3 := int32("+320")
+let $c4 := int64("-640")
+return {"int8": -$c1,"int16": -$c2,"int32": -$c3,"int64": -$c4}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null.aql
deleted file mode 100644
index 13b3e26..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/numeric_unary-minus_null.adm";
-
-let $l := [1]
-let $c := $l[1]
-return {"nullField": -$c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.3.query.aql
new file mode 100644
index 0000000..411d370
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/unary-minus_null/unary-minus_null.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $l := [1]
+let $c := $l[1]
+return {"nullField": -$c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.1.ddl.aql
new file mode 100644
index 0000000..fcc576b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.1.ddl.aql
@@ -0,0 +1,24 @@
+/*
+ * Testcase Name  : c2c-w-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as closed {
+id:int32,
+description:string,
+name:string,
+optnl_fld:string?
+}
+
+create dataset T1(TestType) primary key id;
+
+create dataset T2(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.2.update.aql
new file mode 100644
index 0000000..89c4d1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.2.update.aql
@@ -0,0 +1,21 @@
+/*
+ * Testcase Name  : c2c-w-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake",
+"optnl_fld":"optional data goes here"
+}
+);
+
+insert into dataset T2(for $l in dataset("T1") return $l );
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.3.query.aql
new file mode 100644
index 0000000..8afe5b1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-w-optional/c2c-w-option.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase Name  : c2c-w-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+for $d in dataset("T2")
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.1.ddl.aql
new file mode 100644
index 0000000..4e4cc66
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.1.ddl.aql
@@ -0,0 +1,24 @@
+/*
+ * Testcase Name  : c2c-wo-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ *                : Note that the optional field in source dataset does not hold any data.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as closed {
+id:int32,
+description:string,
+name:string,
+optnl_fld:string?
+}
+
+create dataset T1(TestType) primary key id;
+
+create dataset T2(TestType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.2.update.aql
new file mode 100644
index 0000000..b4da91b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.2.update.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name  : c2c-wo-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ *                : Note that the optional field in source dataset does not hold any data.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake"
+}
+);
+
+insert into dataset T2(for $l in dataset("T1") return $l );
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.3.query.aql
new file mode 100644
index 0000000..4b5434c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c-wo-optional/c2c-wo-optional.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Testcase Name  : c2c-wo-optional.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ *                : The schema includes one optional field named optnl_fld.
+ *                : Note that the optional field in source dataset does not hold any data.
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+for $d in dataset("T2")
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.1.ddl.aql
new file mode 100644
index 0000000..d1c4720
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.1.ddl.aql
@@ -0,0 +1,24 @@
+/*
+ * Testcase Name  : c2c.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as closed {
+id:int32,
+description:string,
+name:string
+}
+
+// source dataset
+create dataset T1(TestType) primary key id;
+
+// target dataset
+create dataset T2(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.2.update.aql
new file mode 100644
index 0000000..aa6fb93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.2.update.aql
@@ -0,0 +1,19 @@
+/*
+ * Testcase Name  : c2c.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake"
+}
+);
+
+insert into dataset T2(for $l in dataset("T1") return $l );
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.3.query.aql
new file mode 100644
index 0000000..e938d42
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/c2c/c2c.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Testcase Name  : c2c.aql
+ * Description    : Insert data into target datase by doing a select on source dataset.
+ *                : Here both source and target datasets are internal datasets
+ * Success        : Yes
+ * Date           : 23rd May 2012
+ */
+
+use dataverse test;
+
+for $d in dataset("T2")
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.ddl.aql
new file mode 100644
index 0000000..c37d5e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type BatterType as {
+id:int32,
+descrpt:string
+}
+
+create type TestType as closed {
+id:int32,
+description:string,
+name:string,
+batters:[[BatterType]]
+}
+
+create dataset T1(TestType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.2.update.aql
new file mode 100644
index 0000000..621d562
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake",
+"batters":[[ {"id":345,"descrpt":"Regular"},{"id":445,"descrpt":"Chocolate"} ]] }
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.3.query.aql
new file mode 100644
index 0000000..3f23e35
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list-ordered01/heterog-list-ordered01.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+use dataverse test;
+
+for $d in dataset("T1") 
+order by $d.id
+return $d
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.1.ddl.aql
new file mode 100644
index 0000000..dbc67fa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type BatterType as {
+id:int32,
+descrpt:string
+}
+
+create type TestType as closed {
+id:int32,
+description:string,
+name:string,
+batters:{{BatterType}}
+}
+
+create dataset T1(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.2.update.aql
new file mode 100644
index 0000000..5a1bd10
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake",
+"batters":{{ {"id":345,"descrpt":"Regular"},{"id":445,"descrpt":"Chocolate"} }} }
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.3.query.aql
new file mode 100644
index 0000000..3f23e35
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list01/heterog-list01.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Test case Name : heterog-list01.aql
+ * Description    : To test insertion of an array of objects into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 14th April 2012
+ */
+
+use dataverse test;
+
+for $d in dataset("T1") 
+order by $d.id
+return $d
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.1.ddl.aql
new file mode 100644
index 0000000..6426aa3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Test case Name : heterog-list02.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type BatterType as {
+id:int32,
+descrpt:string
+}
+
+create type TestType as {
+id:int32,
+description:string,
+name:string,
+batters:[[BatterType]]
+}
+
+create dataset T1(TestType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.2.update.aql
new file mode 100644
index 0000000..98bc444
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Test case Name : heterog-list02.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake",
+"batters":[[{"id":345,"descrpt":"Regular"},{"id":445,"descrpt":"Chocolate"}],[{"id":349,"descrpt":"Soft"},{"id":449,"descrpt":"Vanilla"}]] }
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.3.query.aql
new file mode 100644
index 0000000..7f7c177
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list02/heterog-list02.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Test case Name : heterog-list02.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('T1')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.1.ddl.aql
new file mode 100644
index 0000000..497a358
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.1.ddl.aql
@@ -0,0 +1,27 @@
+/*
+ * Test case Name : heterog-list03.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : batters field is optional in this scenario.
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type BatterType as {
+id:int32,
+descrpt:string
+}
+
+create type TestType as {
+id:int32,
+description:string,
+name:string,
+batters:[[BatterType]]?
+}
+
+create dataset T1(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.2.update.aql
new file mode 100644
index 0000000..427703d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Test case Name : heterog-list03.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : batters field is optional in this scenario.
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+use dataverse test;
+
+insert into dataset T1({
+"id":1234,
+"description":"donut",
+"name":"Cake",
+"batters":[[{"id":345,"descrpt":"Regular"},{"id":445,"descrpt":"Chocolate"}],[{"id":349,"descrpt":"Soft"},{"id":449,"descrpt":"Vanilla"}]] }
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.3.query.aql
new file mode 100644
index 0000000..abae0ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/heterog-list03/heterog-list03.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Test case Name : heterog-list03.aql
+ * Description    : To test insertion of an array of arrays into internal dataset. 
+ *                : batters field is optional in this scenario.
+ *                : Heterogenous list construction.
+ * Success        : Yes
+ * Date           : 28th May 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('T1')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.1.ddl.aql
new file mode 100644
index 0000000..4a4565b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.1.ddl.aql
@@ -0,0 +1,20 @@
+/* 
+ * Test case Name  : open-closed-01.aql
+ * Description     : This test is intended to test insertion of additional data into an open type 
+ * Expected Result : Success
+ * Date            : April 2 2012
+ */
+
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type testType as{
+id : int32,
+name : string
+}
+
+create dataset testds(testType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.2.update.aql
new file mode 100644
index 0000000..524ce33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.2.update.aql
@@ -0,0 +1,11 @@
+/* 
+ * Test case Name  : open-closed-01.aql
+ * Description     : This test is intended to test insertion of additional data into an open type 
+ * Expected Result : Success
+ * Date            : April 2 2012
+ */
+
+use dataverse test;
+
+insert into dataset testds({"id": 123, "name": "John Doe", "hobbies": {{ "scuba", "music" }} }
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.3.query.aql
new file mode 100644
index 0000000..e69d32a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-01/open-closed-01.3.query.aql
@@ -0,0 +1,12 @@
+/* 
+ * Test case Name  : open-closed-01.aql
+ * Description     : This test is intended to test insertion of additional data into an open type 
+ * Expected Result : Success
+ * Date            : April 2 2012
+ */
+
+use dataverse test;
+
+for $l in dataset("testds") 
+order by $l.id
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.1.ddl.aql
new file mode 100644
index 0000000..33ba479
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.1.ddl.aql
@@ -0,0 +1,28 @@
+/*
+ * Test case name : open-closed-12.aql
+ * Description    : Select from dataset two and insert into dataset one, both datasets are of open type.
+ *                : In this case, both datasets are of same schema
+ * Success        : Yes
+ * Date           : 27 March 2012
+ */
+
+drop dataverse testdv2 if exists;
+
+create dataverse testdv2; 
+
+use dataverse testdv2;
+
+create type testtype01 as open {
+  id: string,
+  name: string
+}
+
+create type testtype02 as open {
+id : string,
+name : string
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.2.update.aql
new file mode 100644
index 0000000..0361970
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.2.update.aql
@@ -0,0 +1,27 @@
+/*
+ * Test case name : open-closed-12.aql
+ * Description    : Select from dataset two and insert into dataset one, both datasets are of open type.
+ *                : In this case, both datasets are of same schema
+ * Success        : Yes
+ * Date           : 27 March 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "001", "name": "Person One", "hobbies": {{"scuba", "music"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "002", "name": "Person Two", "hobbies": {{"fishing", "dance"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "003", "name": "Person Three", "hobbies": {{"hiking", "surfing"}}}
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.3.query.aql
new file mode 100644
index 0000000..76dd7b0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-12/open-closed-12.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Test case name : open-closed-12.aql
+ * Description    : Select from dataset two and insert into dataset one, both datasets are of open type.
+ *                : In this case, both datasets are of same schema
+ * Success        : Yes
+ * Date           : 27 March 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds01")
+order by $d.id
+return $d
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.1.ddl.aql
new file mode 100644
index 0000000..3b1d16b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Testcase name : open-closed-14.aql
+ * Description   : insert into target dataset - select * from source dataset
+ *               : in this case dataset1 and dataset2 are fo different schema.
+ * Success       : This test should succeed.
+ * Date          : March 27 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as closed {
+  id: string,
+  name: string?
+}
+
+create type testtype02 as closed {
+  id: string  
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.2.update.aql
new file mode 100644
index 0000000..110d965
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.2.update.aql
@@ -0,0 +1,35 @@
+/*
+ * Testcase name : open-closed-14.aql
+ * Description   : insert into target dataset - select * from source dataset
+ *               : in this case dataset1 and dataset2 are fo different schema.
+ * Success       : This test should succeed.
+ * Date          : March 27 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds01 (
+{ "id": "001" }
+);
+
+insert into dataset testds01 (
+{ "id": "002", "name": "John Doe" }
+);
+
+insert into dataset testds02 (
+{ "id": "003" }
+);
+
+insert into dataset testds02 (
+{ "id": "004" }
+);
+
+insert into dataset testds02 (
+{ "id": "005" }
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.3.query.aql
new file mode 100644
index 0000000..49a8459
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-14/open-closed-14.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase name : open-closed-14.aql
+ * Description   : insert into target dataset - select * from source dataset
+ *               : in this case dataset1 and dataset2 are fo different schema.
+ * Success       : This test should succeed.
+ * Date          : March 27 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset("testds01")
+order by $d.id
+return $d
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.1.ddl.aql
new file mode 100644
index 0000000..d7d7cc2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Testcase Name  : open-closed-15.aql  
+ * Description    : Test closed type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type Schema as closed{
+id_8: int8,
+id_16: int16,
+id_32: int32,
+id_64: int64,
+fp : float,
+name: string,
+dt: date,
+tm: time,
+dt_tm: datetime,
+lat_lon: point
+}
+
+create dataset tdtst(Schema) primary key id_32; 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.2.update.aql
new file mode 100644
index 0000000..6a470a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.2.update.aql
@@ -0,0 +1,29 @@
+/*
+ * Testcase Name  : open-closed-15.aql  
+ * Description    : Test closed type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+
+use dataverse test;
+
+insert into dataset tdtst(
+let $f1:=time("10:50:56:200+05:00")
+let $f2:=datetime("2011-12-31T14:00:00-10:00")
+let $f3:=point("100.0,200.0")
+return {
+"id_8":100,
+"id_16":1011,
+"id_32":23455,
+"id_64":34567,
+"fp":87.61863f,
+"name":"John",
+"dt":"03-21-1982",
+"tm": $f1,
+"dt_tm": $f2,
+"lat_lon": $f3
+}
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.3.query.aql
new file mode 100644
index 0000000..43cb80a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-15/open-closed-15.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase Name  : open-closed-15.aql  
+ * Description    : Test closed type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('tdtst')
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.1.ddl.aql
new file mode 100644
index 0000000..f77e5e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.1.ddl.aql
@@ -0,0 +1,27 @@
+/*
+ * Testcase Name  : open-closed-16.aql  
+ * Description    : Test open type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Schema as open{
+id_8: int8,
+id_16: int16,
+id_32: int32,
+id_64: int64,
+fp : float,
+name: string,
+dt: date,
+tm: time,
+dt_tm: datetime,
+lat_lon: point
+}
+
+create dataset tdtst(Schema) primary key id_32; 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.2.update.aql
new file mode 100644
index 0000000..f154dda
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.2.update.aql
@@ -0,0 +1,28 @@
+/*
+ * Testcase Name  : open-closed-16.aql  
+ * Description    : Test open type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+
+use dataverse test;
+
+insert into dataset tdtst(
+let $f1:=time("10:50:56:200+05:00")
+let $f2:=datetime("2011-12-31T14:00:00-10:00")
+let $f3:=point("100.0,200.0")
+return {
+"id_8":100,
+"id_16":1011,
+"id_32":23455,
+"id_64":34567,
+"fp":87.61863f,
+"name":"John",
+"dt":"03-21-1982",
+"tm": $f1,
+"dt_tm": $f2,
+"lat_lon": $f3
+}
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.3.query.aql
new file mode 100644
index 0000000..a1a841a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-16/open-closed-16.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Testcase Name  : open-closed-16.aql  
+ * Description    : Test open type dataset (with primitives).
+ *                : Create Index on int 32 field
+ *                : Insert data into primitives and retrieve data.
+ * Success        : Yes this test should PASS!
+ * Date           : March 30th 2012
+ */
+use dataverse test;
+
+for $l in dataset('tdtst')
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.1.ddl.aql
new file mode 100644
index 0000000..12461e9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+ * Testcase Name  :  open-closed-17.aql
+ * Description    :  Test open type dataset by inserting additional data along with inserting data for existing fields.
+ * Success        :  Yes
+ * Date           :  March 30th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Schema as open{
+id_8: int8,
+id_16: int16,
+id_32: int32,
+id_64: int64,
+fp : float,
+name: string,
+dt: date,
+tm: time,
+dt_tm: datetime,
+lat_lon: point
+}
+
+create dataset tdtst(Schema) primary key id_32; 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.2.update.aql
new file mode 100644
index 0000000..2474e62
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.2.update.aql
@@ -0,0 +1,27 @@
+/*
+ * Testcase Name  :  open-closed-17.aql
+ * Description    :  Test open type dataset by inserting additional data along with inserting data for existing fields.
+ * Success        :  Yes
+ * Date           :  March 30th 2012
+ */
+
+use dataverse test;
+
+insert into dataset tdtst(
+let $f1:=time("10:50:56:200+05:00")
+let $f2:=datetime("2011-12-31T14:00:00-10:00")
+let $f3:=point("100.0,200.0")
+return {
+"id_8":100,
+"id_16":1011,
+"id_32":23455,
+"id_64":34567,
+"fp":87.61863f,
+"name":"John",
+"dt":"03-21-1982",
+"tm": $f1,
+"dt_tm": $f2,
+"lat_lon": $f3,
+"mydata":{{"this is my additional data"}}
+}
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.3.query.aql
new file mode 100644
index 0000000..ee8c2c2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-17/open-closed-17.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name  :  open-closed-17.aql
+ * Description    :  Test open type dataset by inserting additional data along with inserting data for existing fields.
+ * Success        :  Yes
+ * Date           :  March 30th 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('tdtst')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.1.ddl.aql
new file mode 100644
index 0000000..de32b75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.1.ddl.aql
@@ -0,0 +1,33 @@
+/*
+ * Test case name :  open-closed-19.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as open {
+id:int32
+}
+
+create dataset dtst01(TestType) primary key id;
+
+insert into dtst01({"id":137});
+insert into dtst01({"id":117});
+insert into dtst01({"id":127});
+insert into dtst01({"id":147});
+
+create type Emp as open {
+id:int32,
+name:string,
+age:int8,
+sex:string,
+dob:date
+}
+
+create dataset employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.2.update.aql
new file mode 100644
index 0000000..9627702
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.2.update.aql
@@ -0,0 +1,13 @@
+/*
+ * Test case name :  open-closed-19.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+
+use dataverse test;
+
+for $l in dataset('dtst01')
+retunr $l 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.3.query.aql
new file mode 100644
index 0000000..9627702
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-19/open-closed-19.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Test case name :  open-closed-19.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+
+use dataverse test;
+
+for $l in dataset('dtst01')
+retunr $l 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.1.ddl.aql
new file mode 100644
index 0000000..9a80b41
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Test case name :  open-closed-20.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset which is of open type with nullable fields
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields, but has no intial records in it.
+ *                :  In this scenario, the source dataset (open) has some optional fields
+ * Success        :  Yes
+ * Date           :  May 01 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as open {
+id:int32
+}
+
+create dataset dtst01(TestType) primary key id;
+
+create type Emp as open {
+id:int32,
+name:string,
+age:int8,
+sex:string?,
+dob:date?
+}
+
+create dataset employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.2.update.aql
new file mode 100644
index 0000000..4e96d0b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.2.update.aql
@@ -0,0 +1,24 @@
+/*
+ * Test case name :  open-closed-20.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset which is of open type with nullable fields
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields, but has no intial records in it.
+ *                :  In this scenario, the source dataset (open) has some optional fields
+ * Success        :  Yes
+ * Date           :  May 01 2012
+ */
+
+use dataverse test;
+
+insert into dataset employee({"id":201,"name":"John Doe","age":32,"sex":"M","dob":date("1975-01-11")});
+insert into dataset employee({"id":202,"name":"John Smith","age":30,date("1982-05-23")});
+insert into dataset employee({"id":201,"name":"John Wayne","age":62,"sex":"M"});
+insert into dataset employee({"id":203,"name":"Roger Sanders","age":48,"sex":"M","dob":date("1960-01-08")});
+insert into dataset employee({"id":204,"name":"Raj Singh","age":37,"sex":"M","dob":date("1975-01-08")});
+insert into dataset employee({"id":205,"name":"Mike Tyson","age":44,"dob":date("1969-11-02")});
+insert into dataset employee({"id":206,"name":"Brett Lee","age":35,"sex":"M","dob":date("1976-06-09")});
+insert into dataset employee({"id":207,"name":"Chen Li","age":39,"sex":"M"});
+insert into dataset employee({"id":208,"name":"Mike Carey","age":42});
+insert into dataset employee({"id":221,"name":"Mariam","age":40,"sex":"F","dob":date("1970-01-09"),"desgination":{{"dsg":"Department Manager"}}});
+
+insert into dataset dtst01(for $l in dataset('employee') return $l);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.3.query.aql
new file mode 100644
index 0000000..17454d0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-20/open-closed-20.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Test case name :  open-closed-20.aql
+ * Description    :  Insert into open type internal dataset by querying another internal dataset which is of open type with nullable fields
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only n fields, but has no intial records in it.
+ *                :  In this scenario, the source dataset (open) has some optional fields
+ * Success        :  Yes
+ * Date           :  May 01 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('dtst01')
+return $l 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.1.ddl.aql
new file mode 100644
index 0000000..33cb737
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.1.ddl.aql
@@ -0,0 +1,27 @@
+/*
+ * Test case name :  open-closed-21.aql
+ * Description    :  Insert into open type internal dataset by querying another open type internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only 1 field, but has no intial records in it.
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as open {
+id:int32
+}
+
+create dataset dtst01(TestType) primary key id;
+
+create type Emp as open {
+id:int32,
+name:string,
+age:int8,
+sex:string,
+dob:date
+}
+
+create dataset employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.2.update.aql
new file mode 100644
index 0000000..7f5abaa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.2.update.aql
@@ -0,0 +1,22 @@
+/*
+ * Test case name :  open-closed-21.aql
+ * Description    :  Insert into open type internal dataset by querying another open type internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only 1 field, but has no intial records in it.
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+use dataverse test;
+
+insert into dataset employee({"id":201,"name":"John Doe","age":32,"sex":"M","dob":date("1975-01-11")});
+insert into dataset employee({"id":202,"name":"John Smith","age":30,"sex":"M","dob":date("1982-07-12")});
+insert into dataset employee({"id":203,"name":"John Wayne","age":62,"sex":"M","dob":date("1950-01-08")});
+insert into dataset employee({"id":204,"name":"Roger Sanders","age":48,"sex":"M","dob":date("1972-11-12")});
+insert into dataset employee({"id":205,"name":"Raj Singh","age":37,"sex":"M","dob":date("1978-05-06")});
+insert into dataset employee({"id":206,"name":"Mike Tyson","age":44,"sex":"M","dob":date("1965-09-03")});
+insert into dataset employee({"id":227,"name":"Mariam","age":30,"sex":"F","dob":date("1982-11-01")});
+
+insert into dataset employee({"id":228,"name":"Cathy","age":35,"sex":"F","dob":date("1976-06-11"),"desgination":{{"Department Manager"}}});
+
+insert into dataset dtst01(for $l in dataset('employee') return $l);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.3.query.aql
new file mode 100644
index 0000000..5066474
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-21/open-closed-21.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Test case name :  open-closed-21.aql
+ * Description    :  Insert into open type internal dataset by querying another open type internal dataset
+ *                :  In this case source dataset has (n+n) fields and the target dataset has only 1 field, but has no intial records in it.
+ * Success        :  Yes
+ * Date           :  29 April 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('dtst01')
+return $l 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.1.ddl.aql
new file mode 100644
index 0000000..d09ae64
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case name :  open-closed-22.aql
+ * Description    :  Insert into a closed type dataset which has nullable(optional) and non-nullable fields
+ * Success        :  Yes
+ * Date           :  30 April 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as closed {
+id:int32,
+name:string,
+age:int8?,
+dept:string?,
+sex:string,
+dob:date?
+}
+
+create dataset employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.2.update.aql
new file mode 100644
index 0000000..53ddcd28
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.2.update.aql
@@ -0,0 +1,26 @@
+/*
+ * Test case name :  open-closed-22.aql
+ * Description    :  Insert into a closed type dataset which has nullable(optional) and non-nullable fields
+ * Success        :  Yes
+ * Date           :  30 April 2012
+ */
+
+use dataverse test;
+
+//date("YYYY-MM-DD")
+insert into dataset employee({"id":201,"name":"John Doe","age":37,"dept":"HR","sex":"M","dob":date("1975-11-02")});
+
+insert into dataset employee({"id":202,"name":"John Smith","age":30,"dept":"Sales","sex":"M","dob":date("1982-12-12")});
+
+// all optional fields missing
+insert into dataset employee({"id":201,"name":"John Wayne","age":62,"sex":"M"});
+
+// missing age field
+insert into dataset employee({"id":203,"name":"Roger Sanders","dept":"Technology","sex":"M","dob":date("1970-03-12")});
+
+// all optional fields missing!
+insert into dataset employee({"id":204,"name":"Raj Singh","sex":"M"});
+
+// missing dept field
+insert into dataset employee({"id":205,"name":"Mike Tyson","age":44,"sex":"M","dob":date("1970-12-22")});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.3.query.aql
new file mode 100644
index 0000000..2ff0ea9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-22/open-closed-22.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Test case name :  open-closed-22.aql
+ * Description    :  Insert into a closed type dataset which has nullable(optional) and non-nullable fields
+ * Success        :  Yes
+ * Date           :  30 April 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('employee')
+return $l 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.1.ddl.aql
new file mode 100644
index 0000000..5156204
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name : open-closed-24.aql
+ * Description   : Test use of additional data(open) field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type testType as open {
+id : int32,
+name : string,
+opt_tag : {{ string }}
+}
+
+create dataset testds(testType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.2.update.aql
new file mode 100644
index 0000000..87f36ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name : open-closed-24.aql
+ * Description   : Test use of additional data(open) field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+insert into dataset testds({"id": 32,"name": "UCI","opt_tag":{{"optional text","put any text here","and more"}}});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.3.query.aql
new file mode 100644
index 0000000..4cb3724
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-24/open-closed-24.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name : open-closed-24.aql
+ * Description   : Test use of additional data(open) field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('testds')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.1.ddl.aql
new file mode 100644
index 0000000..08656e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name : open-closed-25.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type testType as open {
+id : int32,
+name : string,
+opt_tag : {{ string }}?
+}
+
+create dataset testds(testType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.2.update.aql
new file mode 100644
index 0000000..bed3bde
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name : open-closed-25.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+insert into dataset testds({"id": 32,"name": "UCI","opt_tag":{{"optional text","put any text here","and more"}}});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.3.query.aql
new file mode 100644
index 0000000..7638f42
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-25/open-closed-25.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name : open-closed-25.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('testds')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.1.ddl.aql
new file mode 100644
index 0000000..ecceb56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Testcase Name : open-closed-26.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ *               : No additional data is inserted (as it is declared as optional) from the insert statement.
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+drop dataverse test if exists;
+
+create dataverse test;
+
+use dataverse test;
+
+create type testType as open {
+id : int32,
+name : string,
+opt_tag : {{ string }}?
+}
+
+create dataset testds(testType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.2.update.aql
new file mode 100644
index 0000000..a5d3435
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.2.update.aql
@@ -0,0 +1,11 @@
+/*
+ * Testcase Name : open-closed-26.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ *               : No additional data is inserted (as it is declared as optional) from the insert statement.
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+insert into dataset testds({"id": 32,"name": "UCI"});
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.3.query.aql
new file mode 100644
index 0000000..0a5aa6b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-26/open-closed-26.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Testcase Name : open-closed-26.aql
+ * Description   : Test use of additional data(open) optional field in create type statement 
+ *               : No additional data is inserted (as it is declared as optional) from the insert statement.
+ * Success       : Yes
+ * Date          : 29th May 2012
+ */
+
+use dataverse test;
+
+for $l in dataset('testds')
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.1.ddl.aql
new file mode 100644
index 0000000..041e97e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Testcase Name  : open-closed-28.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the every keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+  id: string,
+  name: string
+}
+
+create type testtype02 as open {
+id : string,
+name : string
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.2.update.aql
new file mode 100644
index 0000000..7e2076e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.2.update.aql
@@ -0,0 +1,27 @@
+/*
+ * Testcase Name  : open-closed-28.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the every keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "001", "name": "Person One", "hobbies": {{"scuba", "music"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "002", "name": "Person Two", "hobbies": {{"fishing", "dance"}}}
+);
+
+
+insert into dataset testds02 (
+{ "id": "003", "name": "Person Three", "hobbies": {{"hiking", "surfing"}}}
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.3.query.aql
new file mode 100644
index 0000000..919b95b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-28/open-closed-28.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase Name  : open-closed-28.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the every keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset('testds01')
+where every $h in $d.hobbies satisfies $h='hiking' 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.1.ddl.aql
new file mode 100644
index 0000000..a89abd9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Testcase Name  : open-closed-29.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the some keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+  id: string,
+  name: string
+}
+
+create type testtype02 as open {
+id : string,
+name : string
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.2.update.aql
new file mode 100644
index 0000000..6530d19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.2.update.aql
@@ -0,0 +1,28 @@
+/*
+ * Testcase Name  : open-closed-29.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the some keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "001", "name": "Person One", "hobbies": {{"scuba", "music"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "002", "name": "Person Two", "hobbies": {{"fishing", "dance"}}}
+);
+
+
+insert into dataset testds02 (
+{ "id": "003", "name": "Person Three", "hobbies": {{"hiking", "surfing"}}}
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.3.query.aql
new file mode 100644
index 0000000..ba214a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-29/open-closed-29.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Testcase Name  : open-closed-29.aql
+ * Description    : Query for undeclared data from an open type internal dataset
+ *                : use the some keyword in the where clause
+ * Status         : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+// select all hobbies where hiking is one of the hobbies
+for $d in dataset('testds01')
+where some $h in $d.hobbies satisfies $h='hiking' 
+order by $d.id
+return $d
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.1.ddl.aql
new file mode 100644
index 0000000..c7b7c4f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Test case Name : open-closed-30.aql
+ * Description    : Query undeclared data using every in the WHERE clause
+ *                : where every $h in $d.hobbies satisfies $h='hiking'
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+  id: string
+}
+
+create type testtype02 as open {
+id : string,
+name : string
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.2.update.aql
new file mode 100644
index 0000000..c83f467
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.2.update.aql
@@ -0,0 +1,28 @@
+/*
+ * Test case Name : open-closed-30.aql
+ * Description    : Query undeclared data using every in the WHERE clause
+ *                : where every $h in $d.hobbies satisfies $h='hiking'
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "011", "name": "John Doe", "hobbies": {{"scuba", "music"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "102", "name": "Roger Sanders", "hobbies": {{"fishing", "dance"}}}
+);
+
+
+insert into dataset testds02 (
+{ "id": "203", "name": "Phil Smith", "hobbies": {{"hiking", "surfing"}}}
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.3.query.aql
new file mode 100644
index 0000000..644d1d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-30/open-closed-30.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Test case Name : open-closed-30.aql
+ * Description    : Query undeclared data using every in the WHERE clause
+ *                : where every $h in $d.hobbies satisfies $h='hiking'
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset('testds01')
+where every $h in $d.hobbies satisfies $h='hiking' 
+order by $d.id
+return $d.hobbies
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.1.ddl.aql
new file mode 100644
index 0000000..c787988
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.1.ddl.aql
@@ -0,0 +1,23 @@
+/*
+ * Test case Name : open-closed-31.aql
+ * Description    : 
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+  id: string
+}
+
+create type testtype02 as open {
+id : string,
+name : string
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.2.update.aql
new file mode 100644
index 0000000..ee54e2e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.2.update.aql
@@ -0,0 +1,27 @@
+/*
+ * Test case Name : open-closed-31.aql
+ * Description    : 
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "011", "name": "John Doe", "hobbies": {{"scuba", "music"}}}
+);
+
+insert into dataset testds02 (
+{ "id": "102", "name": "Roger Sanders", "hobbies": {{"fishing", "dance"}}}
+);
+
+
+insert into dataset testds02 (
+{ "id": "203", "name": "Phil Smith", "hobbies": {{"hiking", "surfing"}}}
+);
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.3.query.aql
new file mode 100644
index 0000000..e1412a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-31/open-closed-31.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Test case Name : open-closed-31.aql
+ * Description    : 
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset('testds01')
+where some $h in $d.hobbies satisfies $h='hiking' 
+order by $d.id
+return $d.hobbies
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.1.ddl.aql
new file mode 100644
index 0000000..a5d88df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.1.ddl.aql
@@ -0,0 +1,29 @@
+/*
+ * Test case Name : open-closed-32.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset 
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+id: string
+}
+
+create type testtype02 as closed {
+id : string,
+name : string,
+sex : string,
+dept : string,
+salary : int32,
+interests : {{string}}
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.2.update.aql
new file mode 100644
index 0000000..4c40301
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.2.update.aql
@@ -0,0 +1,29 @@
+/*
+ * Test case Name : open-closed-32.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset 
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "011", "name": "John Doe", "sex":"Male", "dept":"HR", "salary":80000,"interests":{{"hiking","scuba","painting","biking"}}});
+
+insert into dataset testds02 (
+{ "id": "921", "name": "John Smith", "sex":"Male", "dept":"Sales", "salary":65000,"interests":{{"gardening","biking","reading","hiking","fishing"}}});
+
+insert into dataset testds02 (
+{ "id": "959", "name": "Susan Malaika", "sex":"Female", "dept":"XML Dev", "salary":200000,"interests":{{"XML","Web Services","Cloud","X-Forms","art","travelling"}}});
+
+insert into dataset testds02 (
+{ "id": "371", "name": "Tom Sawyer", "sex":"Male", "dept":"Well Being", "salary":90000,"interests":{{"tennis","scuba","running","biking"}}});
+
+// insert into open type target dataset by doing a select on the closed type (source) internal dataset
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.3.query.aql
new file mode 100644
index 0000000..dbf2729
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-32/open-closed-32.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Test case Name : open-closed-32.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset 
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset('testds01')
+where some $h in $d.interests satisfies $h='biking' 
+order by $d.id
+return $d.interests
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.1.ddl.aql
new file mode 100644
index 0000000..8de22c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Test case Name : open-closed-33.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ *                : Here the interests field is optional.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+drop dataverse testdv2 if exists;
+create dataverse testdv2;
+use dataverse testdv2;
+
+create type testtype01 as open {
+id: string
+}
+
+create type testtype02 as closed {
+id : string,
+name : string,
+sex : string,
+dept : string,
+salary : int32,
+interests : {{string}}?
+}
+
+create dataset testds01(testtype01) primary key id;
+
+create dataset testds02(testtype02) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.2.update.aql
new file mode 100644
index 0000000..ef41d1d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.2.update.aql
@@ -0,0 +1,30 @@
+/*
+ * Test case Name : open-closed-33.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ *                : Here the interests field is optional.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+insert into dataset testds02 (
+{ "id": "011", "name": "John Doe", "sex":"Male", "dept":"HR", "salary":80000,"interests":{{"hiking","scuba","painting","biking"}}});
+
+insert into dataset testds02 (
+{ "id": "921", "name": "John Smith", "sex":"Male", "dept":"Sales", "salary":65000,"interests":{{"gardening","biking","reading","hiking","fishing"}}});
+
+insert into dataset testds02 (
+{ "id": "959", "name": "Susan Malaika", "sex":"Female", "dept":"XML Dev", "salary":200000,"interests":{{"XML","Web Services","Cloud","X-Forms","art","travelling"}}});
+
+insert into dataset testds02 (
+{ "id": "371", "name": "Tom Sawyer", "sex":"Male", "dept":"Well Being", "salary":90000,"interests":{{"tennis","scuba","running","biking"}}});
+
+// insert into open type target dataset by doing a select on the closed type (source) internal dataset
+
+insert into dataset testds01(
+for $d in dataset("testds02")
+return $d
+);
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.3.query.aql
new file mode 100644
index 0000000..93c39d4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/open-closed-33/open-closed-33.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Test case Name : open-closed-33.aql
+ * Description    : INSERT into target (closed type) internal dataset by doing SELECT on (closed type) source internal dataset
+ *                : then query the target internal dataset for data enclosed within {{ }} braces, in this case interests field.
+ *                : Here the interests field is optional.
+ * Success        : Yes
+ * Date           : 31st May 2012
+ */
+
+use dataverse testdv2;
+
+for $d in dataset('testds01')
+where some $h in $d.interests satisfies $h='biking' 
+order by $d.id
+return $d.interests
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.1.ddl.aql
new file mode 100644
index 0000000..53dc601
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : This test case is to verify the fix for issue134
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=134
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.2.update.aql
new file mode 100644
index 0000000..53dc601
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : This test case is to verify the fix for issue134
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=134
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.3.query.aql
new file mode 100644
index 0000000..59c94b6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue134/query-issue134.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : This test case is to verify the fix for issue134
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=134
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+let $a:=true
+return {{[1,2,3,4,5],[6,5,3,8,9],[44,22,66,-1,0,99.9]}}
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.1.ddl.aql
new file mode 100644
index 0000000..a17a20d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue166
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=166
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.2.update.aql
new file mode 100644
index 0000000..a17a20d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue166
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=166
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.3.query.aql
new file mode 100644
index 0000000..b907bb2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue166/query-issue166.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : This test case is to verify the fix for issue166
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=166
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+ 
+let $a := [[1,2,3],[4,5,6,7]]
+return $a[1]
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.1.ddl.aql
new file mode 100644
index 0000000..8e33f17
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description  : This test case is to verify the fix for issue208
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=208
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+drop dataverse OpenSocialNetworkData if exists;
+create dataverse OpenSocialNetworkData;
+
+use dataverse OpenSocialNetworkData;
+
+create type TwitterUserType as open {
+screen-name: string,
+lang: string,
+friends_count: int32,
+statuses_count: int32,
+name: string,
+followers_count: int32
+}
+
+create type TweetMessageType as open {
+tweetid: string,
+tweetid-copy: string,
+send-time-copy: datetime
+}
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.2.update.aql
new file mode 100644
index 0000000..404fb35
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.2.update.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : This test case is to verify the fix for issue208
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=208
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+use dataverse OpenSocialNetworkData;
+
+load dataset TweetMessages
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/tw_messages.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.3.query.aql
new file mode 100644
index 0000000..e0a0d2b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue208/query-issue208.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : This test case is to verify the fix for issue208
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=208
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+use dataverse OpenSocialNetworkData;
+
+for $t in dataset('TweetMessages')
+where $t.send-time >= datetime('2005-04-13T17:17:22') and
+$t.send-time <= datetime('2011-04-13T17:18:22')
+group by $uid := $t.user.screen-name with $t
+order by $uid
+return {
+    "user": $uid,
+    "count": count($t)
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.1.ddl.aql
new file mode 100644
index 0000000..39a1510
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.1.ddl.aql
@@ -0,0 +1,35 @@
+/*
+ * Description  : This test case is to verify the fix for issue236
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=236
+ * Expected Res : Success
+ * Date         : 20 Dec. 2012
+ */
+
+drop dataverse SocialNetworkData if exists;
+
+create dataverse SocialNetworkData;
+use dataverse SocialNetworkData;
+
+create type TwitterUserType as open {
+screen-name: string,
+lang: string,
+friends_count: int32,
+statuses_count: int32,
+name: string,
+followers_count: int32
+}
+
+create type TweetMessageType as closed {
+tweetid: string,
+tweetid-copy: string,
+user: TwitterUserType,
+sender-location: point?,
+send-time: datetime,
+send-time-copy: datetime,
+referred-topics: {{ string }},
+message-text: string
+}
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.2.update.aql
new file mode 100644
index 0000000..fcb04b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.2.update.aql
@@ -0,0 +1,23 @@
+/*
+ * Description  : This test case is to verify the fix for issue236
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=236
+ * Expected Res : Success
+ * Date         : 20 Dec. 2012
+ */
+
+
+use dataverse SocialNetworkData;
+
+insert into dataset TweetMessages(
+{ 
+"tweetid": "1111387810", 
+"tweetid-copy": "1111387810", 
+"user": { "screen-name": "TonyNapier#786", "lang": "en", "friends_count": 4241366, 
+"statuses_count": 97, "name": "Tony Napier", "followers_count": 5984113 }, 
+"sender-location": point("29.24,78.35"), 
+"send-time": datetime("2011-11-24T14:24:51.000Z"), 
+"send-time-copy": datetime("2011-11-24T14:24:51.000Z"), 
+"referred-topics": {{ "sprint", "wireless" }}, 
+"message-text": " love sprint its wireless is mind-blowing:)" 
+});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.3.query.aql
new file mode 100644
index 0000000..ffa269b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue236/query-issue236.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : This test case is to verify the fix for issue236
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=236
+ * Expected Res : Success
+ * Date         : 20 Dec. 2012
+ */
+
+use dataverse SocialNetworkData;
+
+for $r in dataset('TweetMessages')
+return $r
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.1.ddl.aql
new file mode 100644
index 0000000..4f27231
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue29
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=29
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.2.update.aql
new file mode 100644
index 0000000..4f27231
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue29
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=29
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.3.query.aql
new file mode 100644
index 0000000..5951a74
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue29/query-issue29.3.query.aql
@@ -0,0 +1,68 @@
+/*
+ * Description  : This test case is to verify the fix for issue29
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=29
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+let $tweets := 
+{{
+   {
+      "tweetid": "1023",
+      "user": {
+         "screen-name": "dflynn24",
+         "lang": "en",
+         "friends_count": 46,
+         "statuses_count": 987,
+         "name": "danielle flynn",
+         "followers_count": 47
+      },
+      "sender-location": "40.904177,-72.958996",
+      "send-time": "2010-02-21T11:56:02-05:00",
+      "referred-topics": {{ "verizon" }},
+      "message-text": "i need a #verizon phone like nowwwww! :("
+   },
+   {
+      "tweetid": "1024",
+      "user": {
+         "screen-name": "miriamorous",
+         "lang": "en",
+         "friends_count": 69,
+         "statuses_count": 1068,
+         "name": "Miriam Songco",
+         "followers_count": 78
+      },
+      "send-time": "2010-02-21T11:11:43-08:00",
+      "referred-topics": {{ "commercials", "verizon", "att" }},
+      "message-text": "#verizon & #att #commercials, so competitive"
+   },
+   {
+      "tweetid": "1025",
+      "user": {
+         "screen-name": "dj33",
+         "lang": "en",
+         "friends_count": 96,
+         "statuses_count": 1696,
+         "name": "Don Jango",
+         "followers_count": 22
+      },
+      "send-time": "2010-02-21T12:38:44-05:00",
+      "referred-topics": {{ "charlotte" }},
+      "message-text": "Chillin at dca waiting for 900am flight to #charlotte and from there to providenciales"
+   },
+   {
+      "tweetid": "1026",
+      "user": {
+      "screen-name": "reallyleila",
+         "lang": "en",
+         "friends_count": 106,
+         "statuses_count": 107,
+         "name": "Leila Samii",
+         "followers_count": 52
+      },
+      "send-time": "2010-02-21T21:31:57-06:00",
+      "referred-topics": {{ "verizon", "at&t", "iphone" }},
+      "message-text": "I think a switch from #verizon to #at&t may be in my near future... my smartphone is like a land line compared to the #iphone!"
+   }
+}}
+return $tweets
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.1.ddl.aql
new file mode 100644
index 0000000..22f04ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 1
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.2.update.aql
new file mode 100644
index 0000000..22f04ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 1
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.3.query.aql
new file mode 100644
index 0000000..6053fff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55-1/query-issue55-1.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 1
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+let $l := [1.1f, 1.0f, 1.2f, 0.9, 1.3, 1, 2]
+for $i in $l
+for $j in $l
+return [$i, $j, "=", $i = $j, "<", $i < $j, "<=", $i <= $j, ">", $i > $j, ">=", $i >= $j]
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.1.ddl.aql
new file mode 100644
index 0000000..489f515
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 2
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.2.update.aql
new file mode 100644
index 0000000..489f515
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 2
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.3.query.aql
new file mode 100644
index 0000000..174d71c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue55/query-issue55.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : This test case is to verify the fix for issue55 query 2
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=55
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+for $x in [[1,3],[4,5,2],[-1,-3,0],["a"]]
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.1.ddl.aql
new file mode 100644
index 0000000..81160d1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TweetMessageType as open {
+tweetid : string,
+user : {
+         screen-name: string,
+         lang: string,
+         friends_count: int32,
+         statuses_count: int32,
+         name: string,
+         followers_count: int32
+},    sender-location: point?,
+      send-time: datetime,
+      referred-topics: {{ string }},
+      message-text: string
+};
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.2.update.aql
new file mode 100644
index 0000000..fc08626
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.2.update.aql
@@ -0,0 +1,75 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ */
+
+
+use dataverse test;
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1023",
+      "user": {
+         "screen-name": "dflynn24",
+         "lang": "en",
+         "friends_count": 46,
+         "statuses_count": 987,
+         "name": "danielle flynn",
+         "followers_count": 47
+      },
+      "sender-location": create-point(40.904177,-72.958996),
+      "send-time": datetime("2010-02-21T11:56:02-05:00"),
+      "referred-topics": {{ "verizon" }},
+      "message-text": "i need a #verizon phone like nowwwww! : ("
+   });
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1024",
+      "user": {
+         "screen-name": "miriamorous",
+         "lang": "en",
+         "friends_count": 69,
+         "statuses_count": 1068,
+         "name": "Miriam Songco",
+         "followers_count": 78
+      },
+      "send-time": datetime("2010-02-21T11:11:43-08:00"),
+      "referred-topics": {{ "commercials", "verizon", "att" }},
+      "message-text": "#verizon & #att #commercials, so competitive"
+   });
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1025",
+      "user": {
+         "screen-name": "dj33",
+         "lang": "en",
+         "friends_count": 96,
+         "send-time": "2010-02-21T11:56:02-05:00",      
+         "statuses_count": 1696,
+         "name": "Don Jango",
+         "followers_count": 22
+      },
+      "send-time": datetime("2010-02-21T12:38:44-05:00"),
+      "referred-topics": {{ "charlotte" }},
+      "message-text": "Chillin at dca waiting for 900am flight to #charlotte and from there to providenciales"
+   });
+
+insert into dataset TweetMessages( 
+    { "tweetid": "1026", 
+      "user": { 
+         "screen-name": "reallyleila", 
+         "lang": "en", 
+         "friends_count": 106, 
+         "statuses_count": 107, 
+         "name": "Leila Samii", 
+         "followers_count": 52 
+       }, 
+       "send-time": datetime("2010-02-21T21:31:57-06:00"),
+       "referred-topics": {{ "verizon", "at&t", "iphone" }},
+       "message-text": "I think a switch from #verizon to #at&t may be in my near future... my smartphone is like a land line compared to the #iphone!"
+});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.3.query.aql
new file mode 100644
index 0000000..f91bb83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal/query-proposal.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ */
+
+use dataverse test;
+
+for $tp1 in (
+    for $tweet in dataset('TweetMessages')
+        where some $topic in $tweet.referred-topics satisfies contains($topic, 'verizon')
+            for $tp in $tweet.referred-topics
+                return 
+                { "topic": $tp }
+)
+group by $tp2 := $tp1.topic with $tp1
+order by $tp2
+return { "topic": $tp2, "count": count($tp1) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.1.ddl.aql
new file mode 100644
index 0000000..1dcceb8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.1.ddl.aql
@@ -0,0 +1,30 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ *                 : this is another variant of the test in query-proposal.aql
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TweetMessageType as open {
+tweetid : string,
+user : {
+         screen-name: string,
+         lang: string,
+         friends_count: int32,
+         statuses_count: int32,
+         name: string,
+         followers_count: int32
+},    sender-location: point?,
+      send-time: datetime,
+      referred-topics: {{ string }},
+      message-text: string
+};
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid;
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.2.update.aql
new file mode 100644
index 0000000..47c40d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.2.update.aql
@@ -0,0 +1,75 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ *                 : this is another variant of the test in query-proposal.aql
+ */
+
+use dataverse test;
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1023",
+      "user": {
+         "screen-name": "dflynn24",
+         "lang": "en",
+         "friends_count": 46,
+         "statuses_count": 987,
+         "name": "danielle flynn",
+         "followers_count": 47
+      },
+      "sender-location": create-point(40.904177,-72.958996),
+      "send-time": datetime("2010-02-21T11:56:02-05:00"),
+      "referred-topics": {{ "verizon" }},
+      "message-text": "i need a #verizon phone like nowwwww! : ("
+   });
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1024",
+      "user": {
+         "screen-name": "miriamorous",
+         "lang": "en",
+         "friends_count": 69,
+         "statuses_count": 1068,
+         "name": "Miriam Songco",
+         "followers_count": 78
+      },
+      "send-time": datetime("2010-02-21T11:11:43-08:00"),
+      "referred-topics": {{ "commercials", "verizon", "att" }},
+      "message-text": "#verizon & #att #commercials, so competitive"
+   });
+
+insert into dataset TweetMessages(
+   {
+      "tweetid": "1025",
+      "user": {
+         "screen-name": "dj33",
+         "lang": "en",
+         "friends_count": 96,
+         "send-time": "2010-02-21T11:56:02-05:00",      
+         "statuses_count": 1696,
+         "name": "Don Jango",
+         "followers_count": 22
+      },
+      "send-time": datetime("2010-02-21T12:38:44-05:00"),
+      "referred-topics": {{ "charlotte" }},
+      "message-text": "Chillin at dca waiting for 900am flight to #charlotte and from there to providenciales"
+   });
+
+insert into dataset TweetMessages( 
+    { "tweetid": "1026", 
+      "user": { 
+         "screen-name": "reallyleila", 
+         "lang": "en", 
+         "friends_count": 106, 
+         "statuses_count": 107, 
+         "name": "Leila Samii", 
+         "followers_count": 52 
+       }, 
+       "send-time": datetime("2010-02-21T21:31:57-06:00"),
+       "referred-topics": {{ "verizon", "at&t", "iphone" }},
+       "message-text": "I think a switch from #verizon to #at&t may be in my near future... my smartphone is like a land line compared to the #iphone!"
+});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.3.query.aql
new file mode 100644
index 0000000..bb32102
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-proposal02/query-proposal02.3.query.aql
@@ -0,0 +1,22 @@
+/*
+ * Description     : Insert open data into internal dataset and query the open data
+ * Expected Result : Success
+ * Date            : 23rd October 2012
+ * Notes           : This test was written to cover the scenario which is used in the proposal.
+ *                 : this is another variant of the test in query-proposal.aql
+ */
+
+use dataverse test;
+
+for $tweet in dataset('TweetMessages')
+    where some $reftopic in $tweet.referred-topics
+        satisfies contains($reftopic, 'verizon')
+            for $reftopic in $tweet.referred-topics
+            group by $topic := $reftopic with $tweet
+            order by $topic 
+            return 
+            {
+                "topic": $topic,
+                "count": count($tweet)
+            }
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01.aql
deleted file mode 100644
index 05973fa..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/quantifiers_everysat_01.adm";
-
-for $x in [10, -30]
-where every $y in [-20, -10]
-      satisfies $y > $x
-return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.3.query.aql
new file mode 100644
index 0000000..1c6d301
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_01/everysat_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $x in [10, -30]
+where every $y in [-20, -10]
+      satisfies $y > $x
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.1.ddl.aql
new file mode 100644
index 0000000..feac764
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.2.update.aql
new file mode 100644
index 0000000..feac764
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.3.query.aql
new file mode 100644
index 0000000..62829aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_02/everysat_02.3.query.aql
@@ -0,0 +1,23 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
+let $a := [
+every $x in [1, 2] satisfies $x + $x = 3,
+every $x in [1, 1] satisfies $x + $x = 2,
+every $x in [1, 2] satisfies $x - 2 = 2,
+every $x in [2, 2] satisfies $x - 2 = 0,
+every $x in [1, 2] satisfies $x * 2 = 4,
+every $x in [1, 2] satisfies $x / 2 = 1,
+every $x in [1, 2] satisfies $x = 1 or $x = 2,
+every $x in [1, 2] satisfies $x = 1 and ($x +1) = 2,
+every $x in ["A","B","C"] satisfies $x = "A",
+every $x in [1,2,3], $y in [4,5,6] satisfies $x + $y = 5,
+every $x in [1,2,3], $y in [4,5,6] satisfies $x - $y = 5,
+every $x in [1,2,3], $y in [4,5,6] satisfies $x * $y = 10
+]
+for $i in $a
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.1.ddl.aql
new file mode 100644
index 0000000..feac764
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.2.update.aql
new file mode 100644
index 0000000..feac764
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.3.query.aql
new file mode 100644
index 0000000..0c3c390
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_03/everysat_03.3.query.aql
@@ -0,0 +1,27 @@
+/*
+ * Description      : Test Quantified Expressions 
+ *                  : every <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
+let $a := [
+every $x in [1, 2] satisfies avg([$x, 1]) = 1,
+every $x in ["1", "2"] satisfies string($x) = "1",
+every $x in ["1", "2"] satisfies string-length($x) = 1,
+every $x in [[1, 2],[10],[1,5,7,8]] satisfies count($x) = 1,
+every $x in [[2],[10],[8]] satisfies count($x) = 1,
+every $x in [true, false] satisfies boolean("true"),
+every $x in [true,true] satisfies not($x),
+every $x in [1,2,3], $y in [4,5,6] satisfies $x + $y = 5,
+every $x in [1,2,3], $y in [4,5,6] satisfies $x - $y = 5,
+every $x in [1,2,3], $y in [4,5,6] satisfies $x * $y = 10,
+every $x in ["ab","cd"], $y in ["ab","de"] satisfies string($x) = string($y),
+every $x in [1,2,3], $y in [4,5,6] satisfies int32($x) = int32($y),
+every $x in [1,2,3], $y in [4,5,6] satisfies float($x) = float($y),
+every $x in [1,2,3], $y in [4,5,6] satisfies double($x) = double($y),
+every $x in ["true", "false"], $y in ["false","true"] satisfies boolean($x) = boolean($y),
+every $x in ["1980-05-05T13:13:13Z", "1980-05-05T13:13:13Z"], $y in ["1980-05-05T13:13:13Z","1980-05-05T13:13:13Z"] satisfies datetime($x) = datetime($y)
+]
+for $i in $a
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.1.ddl.aql
new file mode 100644
index 0000000..3d7587b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests that universal quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.2.update.aql
new file mode 100644
index 0000000..1469fb3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description    : Tests that universal quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.3.query.aql
new file mode 100644
index 0000000..7742254
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/everysat_04/everysat_04.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Tests that universal quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $x := [
+every $x in [false,false] satisfies $x,
+every $x in [true,false] satisfies $x,
+every $x in [false,true] satisfies $x,
+every $x in [true,true] satisfies $x,
+every $x in [false,false] satisfies not($x),
+every $x in [true,false] satisfies not($x),
+every $x in [false,true] satisfies not($x),
+every $x in [true,true] satisfies not($x)
+]
+for $i in $x
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01.aql
deleted file mode 100644
index 9837981..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/quantifiers_somesat_01.adm";
-
-for $x in [10, -30, -21, 50]
-where some $y in [-20, -40]
-      satisfies $y > $x
-return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.3.query.aql
new file mode 100644
index 0000000..5ddac59
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_01/somesat_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $x in [10, -30, -21, 50]
+where some $y in [-20, -40]
+      satisfies $y > $x
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02.aql
deleted file mode 100644
index 9ac6f95..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02.aql
+++ /dev/null
@@ -1,53 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  lastorder: {
-    oid: int32,
-    total: float
-  }
-}
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset CustomerSomeSat02(CustomerType)
-  partitioned by key cid on group1;
-create dataset OrdersSomeSat02(OrderType)
-  partitioned by key oid on group1;
-
-load dataset CustomerSomeSat02 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm"));
-
-load dataset OrdersSomeSat02 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm"));
-
-write output to nc1:"rttest/quantifiers_somesat_02.adm";
-
-for $x in dataset('CustomerSomeSat02')
-where some $y in dataset('OrdersSomeSat02')
-      satisfies $y.cid = $x.cid
-order by $x.cid      
-return $x.cid
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.1.ddl.aql
new file mode 100644
index 0000000..1b75b6c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.1.ddl.aql
@@ -0,0 +1,36 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  lastorder: {
+    oid: int32,
+    total: float
+  }
+}
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create dataset CustomerSomeSat02(CustomerType)
+  primary key cid;
+create dataset OrdersSomeSat02(OrderType)
+  primary key oid;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.2.update.aql
new file mode 100644
index 0000000..6728649
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.2.update.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+load dataset CustomerSomeSat02 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/custord-tiny/customer-tiny.adm"),("format"="adm"));
+
+load dataset OrdersSomeSat02 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/custord-tiny/order-tiny.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.3.query.aql
new file mode 100644
index 0000000..a1bd425
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_02/somesat_02.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $x in dataset('CustomerSomeSat02')
+where some $y in dataset('OrdersSomeSat02')
+      satisfies $y.cid = $x.cid
+order by $x.cid      
+return $x.cid
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.1.ddl.aql
new file mode 100644
index 0000000..e6bb380
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test quantified expressions; some variable in [ordered list] satisfies expression.
+ * Expected Result : Success
+ * Date            : 6th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.2.update.aql
new file mode 100644
index 0000000..e6bb380
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description     : Test quantified expressions; some variable in [ordered list] satisfies expression.
+ * Expected Result : Success
+ * Date            : 6th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.3.query.aql
new file mode 100644
index 0000000..7a1bcb8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_03/somesat_03.3.query.aql
@@ -0,0 +1,24 @@
+/*
+ * Description     : Test quantified expressions; some variable in [ordered list] satisfies expression.
+ * Expected Result : Success
+ * Date            : 6th July 2012
+ */
+
+let $a := [
+some $x in [1, 2] satisfies $x + $x = 3,
+some $x in [1, 2] satisfies $x + $x = 2,
+some $x in [1, 2] satisfies $x - 2 = 2,
+some $x in [1, 2] satisfies $x - 2 = 0,
+some $x in [1, 2] satisfies $x * 2 = 4,
+some $x in [1, 2] satisfies $x / 2 = 1,
+some $x in [1, 2] satisfies avg([$x,1]) = 1,
+some $x in [1, 2] satisfies boolean("true"),
+some $x in [1, 2] satisfies boolean("false"),
+some $x in [true,false] satisfies not($x),
+some $x in [1, 2] satisfies $x = 1 or $x = 2,
+some $x in [1, 2] satisfies $x = 1 and ($x +1) = 2 
+]
+for $i in $a
+return $i
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.1.ddl.aql
new file mode 100644
index 0000000..c11137a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      : Test Quantified Expressions
+ *                  : some <variable-name> in [ordered-list] satisfies function expression
+ *                  : some <variable-name> in [ordered-list],<variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.2.update.aql
new file mode 100644
index 0000000..c11137a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      : Test Quantified Expressions
+ *                  : some <variable-name> in [ordered-list] satisfies function expression
+ *                  : some <variable-name> in [ordered-list],<variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.3.query.aql
new file mode 100644
index 0000000..269cc31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_04/somesat_04.3.query.aql
@@ -0,0 +1,21 @@
+/*
+ * Description      : Test Quantified Expressions
+ *                  : some <variable-name> in [ordered-list] satisfies function expression
+ *                  : some <variable-name> in [ordered-list],<variable-name> in [ordered-list] satisfies expression
+ * Expected Result  : Success
+ * Date             : 5th July 2012
+ */
+
+let $a := [
+some $x in ["foo","foobar","foot","fox"] satisfies string-length($x) = 3,
+some $x in [[5,4,3,2],[1,2,3,4,5,6,7,8],[4,2,3,4]] satisfies count($x) = 8,
+some $x in [1, 2] satisfies $x = 1 or $x = 2,
+some $x in [1, 2] satisfies $x = 1 and ($x +1) = 2,
+some $x in ["A","B","C"] satisfies $x = "A",
+some $x in [1,2,3], $y in [4,5,6] satisfies $x + $y = 5,
+some $x in [1,2,3], $y in [4,5,6] satisfies $x - $y = 5,
+some $x in [1,2,3], $y in [4,5,6] satisfies $x * $y = 10,
+some $x in [1,2,3], $y in [4,5,6] satisfies $x / $y = 2
+]
+for $i in $a
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.1.ddl.aql
new file mode 100644
index 0000000..ad0cf1f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test Quantified Expressions 
+ *                  :  some <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies function expression
+ * Expected Result  :  Success
+ * Date             :  5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.2.update.aql
new file mode 100644
index 0000000..ad0cf1f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :  Test Quantified Expressions 
+ *                  :  some <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies function expression
+ * Expected Result  :  Success
+ * Date             :  5th July 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.3.query.aql
new file mode 100644
index 0000000..1ed4593
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_05/somesat_05.3.query.aql
@@ -0,0 +1,18 @@
+/*
+ * Description      :  Test Quantified Expressions 
+ *                  :  some <variable-name> in [ordered-list], <variable-name> in [ordered-list] satisfies function expression
+ * Expected Result  :  Success
+ * Date             :  5th July 2012
+ */
+
+let $a := [
+some $x in ["foo","foobar","footnote"], $y in ["foofoo","fool","foolish","foot","foo"] satisfies string($x) = string($y),
+some $x in ["1","2","3"], $y in ["4","5","6"] satisfies int32($x) = int32($y),
+some $x in ["1.1","2.2","3.3"], $y in ["4.4","5.5","6.6"] satisfies float($x) = float($y),
+some $x in ["1.1d","2.2d","3.3d"], $y in ["4.4d","5.5d","6.6d"] satisfies double($x) = double($y),
+some $x in ["true", "false"], $y in ["false","true"] satisfies boolean($x) = boolean($y),
+some $x in ["1980-05-05T13:13:13Z", "1980-05-05T13:13:13Z"], $y in ["1980-05-05T13:13:13Z","1980-05-05T13:13:13Z"] satisfies datetime($x) = datetime($y),
+some $x in ["1985-07-05Z", "1985-07-05Z"], $y in ["1985-07-05Z","1985-07-05Z"] satisfies date($x) = date($y)
+]
+for $i in $a
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.1.ddl.aql
new file mode 100644
index 0000000..11ef023
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Tests that existential quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.2.update.aql
new file mode 100644
index 0000000..6a8a5fc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.2.update.aql
@@ -0,0 +1,5 @@
+/*
+ * Description    : Tests that existential quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.3.query.aql
new file mode 100644
index 0000000..e406cda
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/quantifiers/somesat_06/somesat_06.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Tests that existential quantification returns true/false correctly.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $x := [
+some $x in [false,false] satisfies $x,
+some $x in [true,false] satisfies $x,
+some $x in [false,true] satisfies $x,
+some $x in [true,true] satisfies $x,
+some $x in [false,false] satisfies not($x),
+some $x in [true,false] satisfies not($x),
+some $x in [false,true] satisfies not($x),
+some $x in [true,true] satisfies not($x)
+]
+for $i in $x
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/range_01.aql b/asterix-app/src/test/resources/runtimets/queries/range_01.aql
deleted file mode 100644
index 0f38113..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/range_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-
-write output to nc1:"rttest/range_01.adm";
-
-for $x in range(20,30)
-return $x
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.1.ddl.aql
new file mode 100644
index 0000000..b70e975
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests whether a conflict between two closed field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.2.update.aql
new file mode 100644
index 0000000..6cdae91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Tests whether a conflict between two closed field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.3.query.aql
new file mode 100644
index 0000000..6211409
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-closed-fieldname-conflict_issue173/closed-closed-fieldname-conflict_issue173.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Tests whether a conflict between two closed field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+use dataverse test;
+
+let $x := {"name": "john", "name": "smith"}
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01.aql
deleted file mode 100644
index 6cb32b0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-write output to nc1:"rttest/records_closed-record-constructor_01.adm";
-
-closed-record-constructor("foo1", 10, "bar1", 20, "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.3.query.aql
new file mode 100644
index 0000000..4ef8508
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_01/closed-record-constructor_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+closed-record-constructor("foo1", 10, "bar1", 20, "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02.aql
deleted file mode 100644
index 204c56b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/records_closed-record-constructor_02.adm";
-
-closed-record-constructor("foo1", 10, "bar1", closed-record-constructor("bar1.1", 10, "bar1.2", 20, "bar1.3", 30, "bar1.4", closed-record-constructor("bar1.4.1", 10, "bar1.4.2", 20, "bar1.4.3", 30, "bar1.4.4", 40), "foo2", 30, "bar2", 40), "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.3.query.aql
new file mode 100644
index 0000000..c6e3756
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_02/closed-record-constructor_02.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+closed-record-constructor("foo1", 10, "bar1", closed-record-constructor("bar1.1", 10, "bar1.2", 20, "bar1.3", 30, "bar1.4", closed-record-constructor("bar1.4.1", 10, "bar1.4.2", 20, "bar1.4.3", 30, "bar1.4.4", 40), "foo2", 30, "bar2", 40), "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03.aql
deleted file mode 100644
index e4378a1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/records_closed-record-constructor_03.adm";
-
-{"foo1": 10, "bar1": {"bar1.1": 10, "bar1.2": 20, "bar1.3": 30, "bar1.4": {"bar1.4.1": 10, "bar1.4.2": 20 } }, "foo2": 30, "bar2": 40}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.3.query.aql
new file mode 100644
index 0000000..7285a75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/closed-record-constructor_03/closed-record-constructor_03.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+{"foo1": 10, "bar1": {"bar1.1": 10, "bar1.2": 20, "bar1.3": 30, "bar1.4": {"bar1.4.1": 10, "bar1.4.2": 20 } }, "foo2": 30, "bar2": 40}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/expFieldName.aql b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName.aql
deleted file mode 100644
index 36df536..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/expFieldName.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/records_expFieldName.adm";
-
-for $x in ["field1", "field2"] 
-return {$x: 1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.1.ddl.aql
new file mode 100644
index 0000000..e3f2bc7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.1.ddl.aql
@@ -0,0 +1,5 @@
+drop dataverse test if exists;
+create dataverse test;
+
+for $x in ["field1", "field2"] 
+return {$x: 1}
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.3.query.aql
new file mode 100644
index 0000000..5c27452
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/expFieldName/expFieldName.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x in ["field1", "field2"] 
+return {$x: 1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01.aql
deleted file mode 100644
index b771ece..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-write output to nc1:"rttest/records_field-access-by-index_01.adm";
-
-let $x := { "foo1": 10, "bar1": 20, "foo2": 30, "bar2": 40 }
-return field-access-by-index($x,2)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.3.query.aql
new file mode 100644
index 0000000..d25edc6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/field-access-by-index_01/field-access-by-index_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $x := { "foo1": 10, "bar1": 20, "foo2": 30, "bar2": 40 }
+return field-access-by-index($x,2)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.1.ddl.aql
new file mode 100644
index 0000000..74de4cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description    : Tests whether a field access on an open field (statically of type ANY) succeeds.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as open {
+  id : int32,
+  name : string
+}
+
+create dataset testds(TestType) primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.2.update.aql
new file mode 100644
index 0000000..42b746f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests whether a field access on an open field (statically of type ANY) succeeds.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+insert into dataset testds({"id": 123, "name": "John Doe", "address": { "zip": 92617} });
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.3.query.aql
new file mode 100644
index 0000000..fdf4768
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/field-access-on-open-field/field-access-on-open-field.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Tests whether a field access on an open field (statically of type ANY) succeeds.
+ *                  Guards against regression to issue 207.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $l in dataset("testds")
+let $a := $l.address
+return $a.zip
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.1.ddl.aql
new file mode 100644
index 0000000..e8da256
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Tests whether a conflict between an open and closed field name are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type opentype as open {
+id:int32,
+fname:string
+}
+
+create dataset testds(opentype) primary key id; 
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.2.update.aql
new file mode 100644
index 0000000..e91cba4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests whether a conflict between an open and closed field name are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+use dataverse test;
+
+insert into dataset testds({'id': 1, 'fname': "name"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.3.query.aql
new file mode 100644
index 0000000..d8cb988
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-closed-fieldname-conflict_issue173/open-closed-fieldname-conflict_issue173.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests whether a conflict between an open and closed field name are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+use dataverse test;
+
+for $x in dataset('testds')
+return {$x.fname: "smith", lowercase("NAME"): "john"}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.1.ddl.aql
new file mode 100644
index 0000000..25b7dad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description    : Tests whether a conflict between two open field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type opentype as open {
+fname1: string,
+fname2: string
+}
+
+create dataset testds(opentype) primary key fname1; 
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.2.update.aql
new file mode 100644
index 0000000..20bebbe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Tests whether a conflict between two open field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+use dataverse test;
+
+insert into dataset testds({'fname1': "name", 'fname2': "name"});
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.3.query.aql
new file mode 100644
index 0000000..a8a90df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-open-fieldname-conflict_issue173/open-open-fieldname-conflict_issue173.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests whether a conflict between two open field names are detected
+ * Expected Result: An error reporting that there is a duplicate field name "name"
+ * Author: zheilbron
+ */
+ 
+use dataverse test;
+
+for $x in dataset('testds')
+return {$x.fname1: "john", $x.fname2: "smith"}
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01.aql
deleted file mode 100644
index c64227a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/records_open-record-constructor_01.adm";
-
-open-record-constructor("foo1", 10, "bar1", 20, "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.3.query.aql
new file mode 100644
index 0000000..d6c8701
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_01/open-record-constructor_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+open-record-constructor("foo1", 10, "bar1", 20, "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02.aql
deleted file mode 100644
index 373d853..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/records_open-record-constructor_02.adm";
-
-open-record-constructor("foo1", 10, "bar1", closed-record-constructor("bar1.1", 10, "bar1.2", 20, "bar1.3", 30, "bar1.4", closed-record-constructor("bar1.4.1", 10, "bar1.4.2", 20, "bar1.4.3", 30, "bar1.4.4", 40), "foo2", 30, "bar2", 40), "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.3.query.aql
new file mode 100644
index 0000000..972ecb2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/records/open-record-constructor_02/open-record-constructor_02.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+open-record-constructor("foo1", 10, "bar1", closed-record-constructor("bar1.1", 10, "bar1.2", 20, "bar1.3", 30, "bar1.4", closed-record-constructor("bar1.4.1", 10, "bar1.4.2", 20, "bar1.4.3", 30, "bar1.4.4", 40), "foo2", 30, "bar2", 40), "foo2", 30, "bar2", 40)
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/10.aql b/asterix-app/src/test/resources/runtimets/queries/scan/10.aql
deleted file mode 100644
index 7878583..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/10.aql
+++ /dev/null
@@ -1,30 +0,0 @@
-/* scan and print a delimited text file */
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as open {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset DBLP1(DBLPType) 
-  partitioned by key id on group1;
-
-// drop dataset DBLP1;
-load dataset DBLP1
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
-
-
-write output to nc1:"rttest/scan_10.adm";
-
-for $paper in dataset('DBLP1')
-order by $paper.id
-return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/10/10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.1.ddl.aql
new file mode 100644
index 0000000..aad13a5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.1.ddl.aql
@@ -0,0 +1,17 @@
+/* scan and print a delimited text file */
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as open {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLP1(DBLPType) 
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/10/10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.2.update.aql
new file mode 100644
index 0000000..987a489
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.2.update.aql
@@ -0,0 +1,8 @@
+/* scan and print a delimited text file */
+use dataverse test;
+
+// drop dataset DBLP1;
+load dataset DBLP1
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/10/10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.3.query.aql
new file mode 100644
index 0000000..3f2567c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/10/10.3.query.aql
@@ -0,0 +1,6 @@
+/* scan and print a delimited text file */
+use dataverse test;
+
+for $paper in dataset('DBLP1')
+order by $paper.id
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/20.aql b/asterix-app/src/test/resources/runtimets/queries/scan/20.aql
deleted file mode 100644
index a07aab2..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/20.aql
+++ /dev/null
@@ -1,29 +0,0 @@
-/* scan and print an ADM file as a dataset of closed records */
-
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset DBLPadm(DBLPType) 
-  partitioned by key id on group1;
-
-// drop dataset DBLPadm;
-load dataset DBLPadm 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
-(("path"="nc1://data/dblp-small/dblp-small.adm"),("format"="adm"));
-
-write output to nc1:"rttest/scan_20.adm";
-
-for $paper in dataset('DBLPadm')
-order by $paper.id
-return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/20/20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.1.ddl.aql
new file mode 100644
index 0000000..0e65639
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.1.ddl.aql
@@ -0,0 +1,18 @@
+/* scan and print an ADM file as a dataset of closed records */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLPadm(DBLPType) 
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/20/20.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.2.update.aql
new file mode 100644
index 0000000..d8c9945
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.2.update.aql
@@ -0,0 +1,9 @@
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+// drop dataset DBLPadm;
+load dataset DBLPadm 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/dblp-small/dblp-small.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/20/20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.3.query.aql
new file mode 100644
index 0000000..6f716d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/20/20.3.query.aql
@@ -0,0 +1,7 @@
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+for $paper in dataset('DBLPadm')
+order by $paper.id
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/30.aql b/asterix-app/src/test/resources/runtimets/queries/scan/30.aql
deleted file mode 100644
index 057bdae..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/30.aql
+++ /dev/null
@@ -1,23 +0,0 @@
-/* scan and print 2 ADM file splits as an external dataset of closed records */
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create external dataset DBLPsplits(DBLPType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small.adm"),("format"="adm")); 
-
-write output to nc1:"rttest/scan_30.adm";
-
-for $paper in dataset('DBLPsplits')
-return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/30/30.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.1.ddl.aql
new file mode 100644
index 0000000..d94e08c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.1.ddl.aql
@@ -0,0 +1,17 @@
+/* scan and print 2 ADM file splits as an external dataset of closed records */
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create external dataset DBLPsplits(DBLPType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small.adm"),("format"="adm")); 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/30/30.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.2.update.aql
new file mode 100644
index 0000000..a8cceb7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.2.update.aql
@@ -0,0 +1,2 @@
+/* scan and print 2 ADM file splits as an external dataset of closed records */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/30/30.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.3.query.aql
new file mode 100644
index 0000000..8646408
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/30/30.3.query.aql
@@ -0,0 +1,5 @@
+/* scan and print 2 ADM file splits as an external dataset of closed records */
+use dataverse test;
+
+for $paper in dataset('DBLPsplits')
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01.aql
deleted file mode 100644
index e772502..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01.aql
+++ /dev/null
@@ -1,44 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-
-create type AllType as open {
-  id: int32,
-  name: string,
-  age: float,
-  salary: double,
-  married: boolean,
-  interests: {{string}},
-  children: [string],
-  address: AddressType,
-  dob: date,
-  time: time,
-  datetime: datetime,
-  duration: duration,
-  location2d: point,
-  location3d: point3d,
-  line: line,
-  polygon: polygon,
-  circle: circle
-
-  // binary
-  // union
-}
-
-
-create external dataset All(AllType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/allData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/scan_alltypes_01.adm";
-      
-for $a in dataset('All')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.1.ddl.aql
new file mode 100644
index 0000000..67e79fe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.1.ddl.aql
@@ -0,0 +1,37 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type AllType as open {
+  id: int32,
+  name: string,
+  age: float,
+  salary: double,
+  married: boolean,
+  interests: {{string}},
+  children: [string],
+  address: AddressType,
+  dob: date,
+  time: time,
+  datetime: datetime,
+  duration: duration,
+  location2d: point,
+  location3d: point3d,
+  line: line,
+  polygon: polygon,
+  circle: circle
+
+  // binary
+  // union
+}
+
+create external dataset All(AllType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/allData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.3.query.aql
new file mode 100644
index 0000000..2a4f95b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_01/alltypes_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+      
+for $a in dataset('All')
+return $a 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02.aql
new file mode 100644
index 0000000..7f01c3e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02.aql
@@ -0,0 +1,48 @@
+/*
+ * Description  : Test variant syntax for dataset access (scan)
+ *              : using parentheses and quotes is optional
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type AllType as open {
+  id: int32,
+  name: string,
+  age: float,
+  salary: double,
+  married: boolean,
+  interests: {{string}},
+  children: [string],
+  address: AddressType,
+  dob: date,
+  time: time,
+  datetime: datetime,
+  duration: duration,
+  location2d: point,
+  location3d: point3d,
+  line: line,
+  polygon: polygon,
+  circle: circle
+
+  // binary
+  // union
+}
+
+create external dataset All(AllType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/allData.json"),("format"="adm"));
+        
+write output to nc1:"rttest/scan_alltypes_02.adm";
+      
+for $a in dataset All
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.1.ddl.aql
new file mode 100644
index 0000000..8e27049
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.1.ddl.aql
@@ -0,0 +1,44 @@
+/*
+ * Description  : Test variant syntax for dataset access (scan)
+ *              : using parentheses and quotes is optional
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type AllType as open {
+  id: int32,
+  name: string,
+  age: float,
+  salary: double,
+  married: boolean,
+  interests: {{string}},
+  children: [string],
+  address: AddressType,
+  dob: date,
+  time: time,
+  datetime: datetime,
+  duration: duration,
+  location2d: point,
+  location3d: point3d,
+  line: line,
+  polygon: polygon,
+  circle: circle
+
+  // binary
+  // union
+}
+
+create external dataset All(AllType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/allData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.2.update.aql
new file mode 100644
index 0000000..67af24b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Test variant syntax for dataset access (scan)
+ *              : using parentheses and quotes is optional
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.3.query.aql
new file mode 100644
index 0000000..6402144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/alltypes_02/alltypes_02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Test variant syntax for dataset access (scan)
+ *              : using parentheses and quotes is optional
+ * Expected Res : Success
+ * Date         : 6th March 2013
+ */
+
+use dataverse test;
+
+for $a in dataset All
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax.aql b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax.aql
new file mode 100644
index 0000000..254ecc4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax.aql
@@ -0,0 +1,22 @@
+/*
+ * Description    : Tests syntax error for the changed dataset access syntax
+ * Expected Result: Syntax Error from parser
+ * Date: 			March 6th 2013
+ */
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Employee as closed {
+id: int32,
+name: string,
+salary: int32
+}
+
+create dataset Office(Employee)
+primary key id;
+
+insert into dataset Office({"id": 1, "name": "clerk#1", "salary":120000});
+
+for $t in dataset 'test.Office'
+return $t
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.1.ddl.aql
new file mode 100644
index 0000000..f4f165c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Tests syntax error for the changed dataset access syntax
+ * Expected Result: Syntax Error from parser
+ * Date: 			March 6th 2013
+ */
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type Employee as closed {
+id: int32,
+name: string,
+salary: int32
+}
+
+create dataset Office(Employee)
+primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.2.update.aql
new file mode 100644
index 0000000..a6cf403
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Tests syntax error for the changed dataset access syntax
+ * Expected Result: Syntax Error from parser
+ * Date: 			March 6th 2013
+ */
+use dataverse test;
+
+insert into dataset Office({"id": 1, "name": "clerk#1", "salary":120000});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.3.query.aql
new file mode 100644
index 0000000..04587fa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/invalid-scan-syntax/invalid-scan-syntax.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Tests syntax error for the changed dataset access syntax
+ * Expected Result: Syntax Error from parser
+ * Date: 			March 6th 2013
+ */
+use dataverse test;
+
+for $t in dataset 'test.Office'
+return $t
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.1.ddl.aql
new file mode 100644
index 0000000..7ebf213
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include whitespace between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLPadm(DBLPType) 
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.2.update.aql
new file mode 100644
index 0000000..1524cac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.2.update.aql
@@ -0,0 +1,17 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include whitespace between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+// drop dataset DBLPadm;
+load dataset DBLPadm 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/dblp-small/part-00000.adm, nc1://data/dblp-small/part-00001.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.3.query.aql
new file mode 100644
index 0000000..e6f8a40
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_1/issue238_query_1.3.query.aql
@@ -0,0 +1,15 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include whitespace between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+for $paper in dataset('DBLPadm')
+order by $paper.id
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.1.ddl.aql
new file mode 100644
index 0000000..ef20dab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.1.ddl.aql
@@ -0,0 +1,26 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include newline between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create dataset DBLPadm(DBLPType) 
+  primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.2.update.aql
new file mode 100644
index 0000000..b154222
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.2.update.aql
@@ -0,0 +1,18 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include newline between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+// drop dataset DBLPadm;
+load dataset DBLPadm 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter" 
+(("path"="nc1://data/dblp-small/part-00000.adm, 
+ nc1://data/dblp-small/part-00001.adm"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.3.query.aql
new file mode 100644
index 0000000..26bcd1a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/issue238_query_2/issue238_query_2.3.query.aql
@@ -0,0 +1,15 @@
+/*
+* Description  : Create an  dataset and load it from two file splits 
+                 Include newline between the elements in the comma-separated list of file paths.
+* Expected Res : Success
+* Issue        : 238
+* Date         : 7th Jan 2013
+*/
+
+/* scan and print an ADM file as a dataset of closed records */
+
+use dataverse test;
+
+for $paper in dataset('DBLPadm')
+order by $paper.id
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01.aql b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01.aql
deleted file mode 100644
index f716d1c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01.aql
+++ /dev/null
@@ -1,23 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type NumericType as open {
-  id: int32,
-  int8Field: int8?,
-  int16Field: int16?,
-  int32Field: int32?,
-  int64Field: int64?,
-  floatField: float?,
-  doubleField: double?
-}
-
-
-create external dataset Numeric(NumericType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/numericData.adm"),("format"="adm"));
-        
-write output to nc1:"rttest/scan_numeric_types_01.adm";
-      
-for $a in dataset('Numeric')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.1.ddl.aql
new file mode 100644
index 0000000..658bf5b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type NumericType as open {
+  id: int32,
+  int8Field: int8?,
+  int16Field: int16?,
+  int32Field: int32?,
+  int64Field: int64?,
+  floatField: float?,
+  doubleField: double?
+}
+
+create external dataset Numeric(NumericType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/numericData.adm"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.3.query.aql
new file mode 100644
index 0000000..e9fddfb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/numeric_types_01/numeric_types_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $a in dataset('Numeric')
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01.aql
deleted file mode 100644
index 1ad5244..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01.aql
+++ /dev/null
@@ -1,22 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type SpatialType as open {
-  id: int32,
-  point: point,
-  point3d: point3d,
-  line: line,
-  polygon: polygon,
-  circle: circle
-}
-
-create external dataset Spatial(SpatialType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/spatialData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/scan_spatial_types_01.adm";
-      
-for $a in dataset('Spatial')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.1.ddl.aql
new file mode 100644
index 0000000..73a4517
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.1.ddl.aql
@@ -0,0 +1,17 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type SpatialType as open {
+  id: int32,
+  point: point,
+  point3d: point3d,
+  line: line,
+  polygon: polygon,
+  circle: circle
+}
+
+create external dataset Spatial(SpatialType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.2.update.aql
new file mode 100644
index 0000000..d415c73
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.2.update.aql
@@ -0,0 +1,2 @@
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.3.query.aql
new file mode 100644
index 0000000..65c7a61
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_01/spatial_types_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $a in dataset('Spatial')
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02.aql
deleted file mode 100644
index 6bca691..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02.aql
+++ /dev/null
@@ -1,27 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type SpatialType as open {
-  id: int32,
-  point: point,
-  point3d: point3d,
-  line: line,
-  polygon: polygon,
-  circle: circle
-}
-
-create nodegroup group1 on nc1;
-
-create dataset Spatial2(SpatialType) 
-	partitioned by key id on group1;
-
-load dataset Spatial2 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/spatialData.txt"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-        
-write output to nc1:"rttest/scan_spatial_types_02.adm";
-      
-for $a in dataset('Spatial2')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.1.ddl.aql
new file mode 100644
index 0000000..1dc7c86
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.1.ddl.aql
@@ -0,0 +1,20 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type SpatialType as open {
+  id: int32,
+  point: point,
+  point3d: point3d,
+  line: line,
+  polygon: polygon,
+  circle: circle
+}
+
+create dataset Spatial2(SpatialType) 
+	primary key id;
+
+load dataset Spatial2 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/spatialData.txt"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.3.query.aql
new file mode 100644
index 0000000..0e766e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/spatial_types_02/spatial_types_02.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $a in dataset('Spatial2')
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01.aql
deleted file mode 100644
index d5074a0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01.aql
+++ /dev/null
@@ -1,20 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type TempType as open {
-  id: int32,
-  date: date,
-  time: time,
-  datetime: datetime,
-  duration: duration
-}
-
-create external dataset Temp(TempType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/tempData.json"),("format"="adm"));
-        
-write output to nc1:"rttest/scan_temp_types_01.adm";
-      
-for $a in dataset('Temp')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.1.ddl.aql
new file mode 100644
index 0000000..f73c49a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TempType as open {
+  id: int32,
+  date: date,
+  time: time,
+  datetime: datetime,
+  duration: duration
+}
+
+create external dataset Temp(TempType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/tempData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.3.query.aql
new file mode 100644
index 0000000..3d36fc9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_01/temp_types_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $a in dataset('Temp')
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02.aql
deleted file mode 100644
index 22289ef..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type TempType as closed {
-  id: int32,
-  date: date,
-  time: time,
-  datetime: datetime,
-  duration: duration
-}
-
-create nodegroup group1 on nc1;
-
-create dataset Temp2(TempType) 
-	partitioned by key id on group1;
-
-load dataset Temp2 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/nontagged/tempData.txt"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-       
-write output to nc1:"rttest/scan_temp_types_02.adm";
-      
-for $a in dataset('Temp2')
-return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.1.ddl.aql
new file mode 100644
index 0000000..6c9ef0c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TempType as closed {
+  id: int32,
+  date: date,
+  time: time,
+  datetime: datetime,
+  duration: duration
+}
+
+create dataset Temp2(TempType) 
+	primary key id;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.2.update.aql
new file mode 100644
index 0000000..f042767
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset Temp2 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/nontagged/tempData.txt"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.3.query.aql
new file mode 100644
index 0000000..ffce188
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/scan/temp_types_02/temp_types_02.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+      
+for $a in dataset('Temp2')
+return $a 
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable.aql
deleted file mode 100644
index c1bbe7e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable.aql
+++ /dev/null
@@ -1,33 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: {{string}},
-  children: [ { name: string, age: int32? } ]
-}
-
-
-create nodegroup group1 if not exists on nc1;
-
-create external dataset Customers(CustomerType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/tiny01/customer.adm"),("format"="adm"));
-
-write output to nc1:"rttest/semistructured_count-nullable.adm";
-
-for $c in dataset('Customers')
-group by $age := $c.age with $c
-order by $age
-return { "custage": $age, "count": count($c) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.1.ddl.aql
new file mode 100644
index 0000000..f05a169
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.1.ddl.aql
@@ -0,0 +1,23 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+
+create external dataset Customers(CustomerType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/tiny01/customer.adm"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.3.query.aql
new file mode 100644
index 0000000..f86b3ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/count-nullable/count-nullable.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+group by $age := $c.age with $c
+order by $age
+return { "custage": $age, "count": count($c) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter.aql
deleted file mode 100644
index b5bea3e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter.aql
+++ /dev/null
@@ -1,33 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-
-create type AddressType as open {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as open {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: {{string}},
-  children: [ { name: string, age: int32? } ]
-}
-
-
-create nodegroup group1 if not exists on nc1;
-
-create external dataset Customers(CustomerType) 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/tiny01/customer.adm"),("format"="adm"));
-
-write output to nc1:"rttest/semistructured_cust-filter.adm";
-
-for $c in dataset('Customers')
-where $c.age < 21 
-order by $c.cid
-return { "custname":$c.name, "custage": $c.age }
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.1.ddl.aql
new file mode 100644
index 0000000..344c27f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.1.ddl.aql
@@ -0,0 +1,22 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type AddressType as open {
+  number: int32, 
+  street: string,
+  city: string
+}
+
+create type CustomerType as open {
+  cid: int32, 
+  name: string,
+  age: int32?,
+  address: AddressType?,
+  interests: {{string}},
+  children: [ { name: string, age: int32? } ]
+}
+
+create external dataset Customers(CustomerType) 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/tiny01/customer.adm"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.3.query.aql
new file mode 100644
index 0000000..68d45fe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/cust-filter/cust-filter.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $c in dataset('Customers')
+where $c.age < 21 
+order by $c.cid
+return { "custname":$c.name, "custage": $c.age }
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1.aql
deleted file mode 100644
index 8f44e23..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type OrderType as open {
-  oid: int32,
-  cid: int32,
-  orderstatus: string,
-  orderpriority: string,
-  clerk: string,
-  total: float
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create external dataset Orders(OrderType)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/tiny01/orders.adm"),("format"="adm"));
-
-write output to nc1:"rttest/semistructured_has-param1.adm";
-
-for $o in dataset('Orders')
-where not(is-null($o.param1))
-order by $o.oid 
-return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.1.ddl.aql
new file mode 100644
index 0000000..477989e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.1.ddl.aql
@@ -0,0 +1,16 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type OrderType as open {
+  oid: int32,
+  cid: int32,
+  orderstatus: string,
+  orderpriority: string,
+  clerk: string,
+  total: float
+}
+
+create external dataset Orders(OrderType)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/semistructured/tiny01/orders.adm"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.3.query.aql
new file mode 100644
index 0000000..4247586
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/semistructured/has-param1/has-param1.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('Orders')
+where not(is-null($o.param1))
+order by $o.oid 
+return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_01.aql
deleted file mode 100644
index 2034c38..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance-check_01.adm";
-
-let $a := "Nalini Venkatasubramanian"
-let $b := "Nalini Wekatasupramanian"
-let $ed := edit-distance-check($a, $b, 3)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_02.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_02.aql
deleted file mode 100644
index c3d5342..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance-check_02.adm";
-
-let $a := "Nalini Venkatasubramanian"
-let $b := "Nalini Wekatasupramanian"
-let $ed := edit-distance-check($a, $b, 2)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_03.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_03.aql
deleted file mode 100644
index ecf556c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_03.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance-check_03.adm";
-
-let $a := [1, 2, 3, 4, 5, 6, 7]
-let $b := [1, 3, 4, 5, 7, 8]
-let $ed := edit-distance-check($a, $b, 3)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_04.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_04.aql
deleted file mode 100644
index 80a2da6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_04.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance-check_04.adm";
-
-let $a := [1, 2, 3, 4, 5, 6, 7]
-let $b := [1, 3, 4, 5, 7, 8]
-let $ed := edit-distance-check($a, $b, 2)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.3.query.aql
new file mode 100644
index 0000000..1b562ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_ints/edit-distance-check_ints.3.query.aql
@@ -0,0 +1,13 @@
+use dataverse test;
+
+let $a := [1, 2, 3, 4, 5, 6, 7]
+let $b := [1, 3, 4, 5, 7, 8]
+let $results :=
+[
+  edit-distance-check($a, $b, 3),
+  edit-distance-check($b, $a, 3),
+  edit-distance-check($a, $b, 2),
+  edit-distance-check($b, $a, 2)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.3.query.aql
new file mode 100644
index 0000000..605a672
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-check_strings/edit-distance-check_strings.3.query.aql
@@ -0,0 +1,13 @@
+use dataverse test;
+
+let $a := "Nalini Venkatasubramanian"
+let $b := "Nalini Wekatasupramanian"
+let $results :=
+[
+  edit-distance-check($a, $b, 3),
+  edit-distance-check($b, $a, 3),
+  edit-distance-check($a, $b, 2),
+  edit-distance-check($b, $a, 2)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.3.query.aql
new file mode 100644
index 0000000..97fbd61
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $a := []
+let $b := [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+let $results :=
+[
+  edit-distance-list-is-filterable($a, 0),
+  edit-distance-list-is-filterable($a, 3),
+  edit-distance-list-is-filterable($b, 0),
+  edit-distance-list-is-filterable($b, 3),
+  edit-distance-list-is-filterable($b, 8),
+  edit-distance-list-is-filterable($b, 11)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.3.query.aql
new file mode 100644
index 0000000..9d55ce7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.3.query.aql
@@ -0,0 +1,29 @@
+use dataverse test;
+
+let $a := ""
+let $b := "abcdefghij"
+let $results :=
+[
+  edit-distance-string-is-filterable($a, 0, 2, false),
+  edit-distance-string-is-filterable($a, 0, 2, true),
+  edit-distance-string-is-filterable($a, 1, 2, false),
+  edit-distance-string-is-filterable($a, 1, 2, true),
+  edit-distance-string-is-filterable($b, 0, 2, false),
+  edit-distance-string-is-filterable($b, 0, 2, true),
+  edit-distance-string-is-filterable($b, 1, 2, false),
+  edit-distance-string-is-filterable($b, 1, 2, true),    
+  edit-distance-string-is-filterable($b, 4, 2, false),
+  edit-distance-string-is-filterable($b, 5, 2, true), 
+  edit-distance-string-is-filterable($b, 5, 2, false),
+  edit-distance-string-is-filterable($b, 6, 2, true),
+  edit-distance-string-is-filterable($b, 0, 3, false),
+  edit-distance-string-is-filterable($b, 0, 3, true),
+  edit-distance-string-is-filterable($b, 1, 3, false),
+  edit-distance-string-is-filterable($b, 1, 3, true),
+  edit-distance-string-is-filterable($b, 2, 3, false),
+  edit-distance-string-is-filterable($b, 3, 3, true), 
+  edit-distance-string-is-filterable($b, 3, 3, false),
+  edit-distance-string-is-filterable($b, 4, 3, true)  
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_01.aql
deleted file mode 100644
index 3365690..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance_01.adm";
-
-let $a := "Nalini Venkatasubramanian"
-let $b := "Nalini Wekatasupramanian"
-let $ed := edit-distance($a, $b)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_02.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_02.aql
deleted file mode 100644
index bf0df90..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_edit-distance_02.adm";
-
-let $a := [1, 2, 3, 4, 5, 6, 7]
-let $b := [1, 3, 4, 5, 7, 8]
-let $ed := edit-distance($a, $b)
-return $ed
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.3.query.aql
new file mode 100644
index 0000000..0088ee7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_ints/edit-distance_ints.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $a := [1, 2, 3, 4, 5, 6, 7]
+let $b := [1, 3, 4, 5, 7, 8]
+let $results :=
+[
+  edit-distance($a, $b),
+  edit-distance($b, $a)  
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.3.query.aql
new file mode 100644
index 0000000..6acbf89
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/edit-distance_strings/edit-distance_strings.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $a := "Nalini Venkatasubramanian"
+let $b := "Nalini Wekatasupramanian"
+let $results :=
+[
+  edit-distance($a, $b),
+  edit-distance($b, $a)  
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.ddl.aql
new file mode 100644
index 0000000..cad2811
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.3.query.aql
new file mode 100644
index 0000000..55fd978
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+set simfunction 'edit-distance';
+set simthreshold '2';
+
+for $paper in dataset('DBLP')
+where $paper.authors ~= "Amihay Motro"
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.ddl.aql
new file mode 100644
index 0000000..cad2811
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.3.query.aql
new file mode 100644
index 0000000..3fd772a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+set simfunction 'jaccard';
+set simthreshold '0.5f';
+
+for $paper in dataset('DBLP')
+where word-tokens($paper.title) ~= word-tokens("Transactions for Cooperative Environments")
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.3.query.aql
new file mode 100644
index 0000000..1f61b15
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard/prefix-len-jaccard.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+for $l in [1]
+return [
+  prefix-len-jaccard(5, .8f),
+  prefix-len-jaccard(5, .9f),
+  prefix-len-jaccard(10, .8f),
+  prefix-len-jaccard(10, .9f),
+  prefix-len-jaccard(15, .8f),
+  prefix-len-jaccard(15, .9f)
+]
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard_01.aql
deleted file mode 100644
index 772e64e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/prefix-len-jaccard_01.aql
+++ /dev/null
@@ -1,15 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_prefix-len-jaccard_01.adm";
-
-for $l in [1]
-return [
-  prefix-len-jaccard(5, .8f),
-  prefix-len-jaccard(5, .9f),
-  prefix-len-jaccard(10, .8f),
-  prefix-len-jaccard(10, .9f),
-  prefix-len-jaccard(15, .8f),
-  prefix-len-jaccard(15, .9f)
-]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_01.aql
deleted file mode 100644
index cca0f99..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard-check_01.adm";
-
-let $a := [1, 2, 3, 4, 5, 8, 9]
-let $b := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
-let $jacc := similarity-jaccard-check($a, $b, 0.7f)
-return $jacc
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_02.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_02.aql
deleted file mode 100644
index 38fe1f4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard-check_02.adm";
-
-let $a := [1, 2, 3, 4, 5, 8, 9]
-let $b := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
-let $jacc := similarity-jaccard-check($a, $b, 0.8f)
-return $jacc
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.3.query.aql
new file mode 100644
index 0000000..55eb8f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.3.query.aql
@@ -0,0 +1,26 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := [1, 2, 3, 4, 5]
+let $c := [4, 3, 5, 8, 9, 2, 1]
+let $d := [7, 5, 8, 9, 3, 10, 1, 2, 11, 4]
+let $e := [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21]
+let $f := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
+let $results :=
+[ 
+  similarity-jaccard-check($a, $b, 0.0f),
+  similarity-jaccard-check($b, $a, 0.0f),
+  similarity-jaccard-check($a, $b, 0.1f),
+  similarity-jaccard-check($b, $a, 0.1f),
+  similarity-jaccard-check($c, $d, 0.6f),
+  similarity-jaccard-check($d, $c, 0.6f),
+  similarity-jaccard-check($c, $d, 0.8f),
+  similarity-jaccard-check($d, $c, 0.8f),
+  similarity-jaccard-check($e, $f, 0.05f),
+  similarity-jaccard-check($f, $e, 0.05f),
+  similarity-jaccard-check($e, $f, 0.8f),
+  similarity-jaccard-check($f, $e, 0.8f)
+  
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.ddl.aql
new file mode 100644
index 0000000..cad2811
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.3.query.aql
new file mode 100644
index 0000000..11e777e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Environments for Cooperative Transactions")
+let $jacc := similarity-jaccard-check($paper_tokens, $query_tokens, 0.5f)
+where $jacc[0]
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.3.query.aql
new file mode 100644
index 0000000..83acea7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.3.query.aql
@@ -0,0 +1,31 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := ["abc", "bcd", "cde", "def", "efg"]
+let $c := ["efg", "abc", "cde", "def", "hij", "ijk", "bcd"]
+let $d := ["abc", "ijk", "bcd", "efg", "fgh", "ghi", "def", "hij", "jkl", "cde"]
+let $e := ["Efg", "aBc", "cdE", "DEf", "hIJ", "IjK", "BCD"]
+let $f := ["abc", "ijk", "bcd", "efg", "fgh", "ghi", "def", "hij", "jkl", "cde"]
+let $g := ["cde", "zza", "zzb", "zzc", "zwz", "za", "zbe", "zer", "zba", "zfe", "wab"]
+let $h := ["abc", "ijk", "bcd", "efg", "fgh", "ghi", "def", "hij", "jkl", "cde"]
+let $results :=
+[ 
+  similarity-jaccard-check($a, $b, 0.0f),
+  similarity-jaccard-check($b, $a, 0.0f),
+  similarity-jaccard-check($a, $b, 0.1f),
+  similarity-jaccard-check($b, $a, 0.1f),
+  similarity-jaccard-check($c, $d, 0.6f),
+  similarity-jaccard-check($d, $c, 0.6f),
+  similarity-jaccard-check($c, $d, 0.8f),
+  similarity-jaccard-check($d, $c, 0.8f),
+  similarity-jaccard-check($e, $f, 0.6f),
+  similarity-jaccard-check($f, $e, 0.6f),
+  similarity-jaccard-check($e, $f, 0.8f),
+  similarity-jaccard-check($f, $e, 0.8f),
+  similarity-jaccard-check($g, $h, 0.05f),
+  similarity-jaccard-check($h, $g, 0.05f),
+  similarity-jaccard-check($g, $h, 0.8f),
+  similarity-jaccard-check($h, $g, 0.8f)  
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.3.query.aql
new file mode 100644
index 0000000..46c0389
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+for $l in [1]
+return [
+  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 3], 1, 1f),
+  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 4], 1, .5f),
+  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 4], 1, .6f),
+  similarity-jaccard-prefix-check(3, [1, 2, 3], 9, [1, 2, 3], 1, .5f),
+  similarity-jaccard-prefix-check(4, [1, 2, 3, 4], 2, [1, 2], 1, .5f),
+  similarity-jaccard-prefix-check(4, [1, 2, 3, 4], 4, [1, 2], 1, .33f)
+]
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check_01.aql
deleted file mode 100644
index 73c7ebc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix-check_01.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard-prefix-check_01.adm";
-
-for $l in [1]
-return [
-  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 3], 1, 1f),
-
-  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 4], 1, .5f),
-  similarity-jaccard-prefix-check(3, [1, 2, 3], 3, [1, 2, 4], 1, .6f),
-
-
-  similarity-jaccard-prefix-check(3, [1, 2, 3], 9, [1, 2, 3], 1, .5f),
-
-  similarity-jaccard-prefix-check(4, [1, 2, 3, 4], 2, [1, 2], 1, .5f),
-  similarity-jaccard-prefix-check(4, [1, 2, 3, 4], 4, [1, 2], 1, .33f)
-]
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.3.query.aql
new file mode 100644
index 0000000..10db026
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+for $l in [1]
+return [
+  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 3], 1, 1f),
+  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 4], 1, .5f),
+  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 4], 1, .6f),
+  similarity-jaccard-prefix(3, [1, 2, 3], 9, [1, 2, 3], 1, .5f),
+  similarity-jaccard-prefix(4, [1, 2, 3, 4], 2, [1, 2], 1, .5f),
+  similarity-jaccard-prefix(4, [1, 2, 3, 4], 4, [1, 2], 1, .33f)
+]
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix_01.aql
deleted file mode 100644
index 35b4719..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-prefix_01.aql
+++ /dev/null
@@ -1,19 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard-prefix_01.adm";
-
-for $l in [1]
-return [
-  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 3], 1, 1f),
-
-  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 4], 1, .5f),
-  similarity-jaccard-prefix(3, [1, 2, 3], 3, [1, 2, 4], 1, .6f),
-
-
-  similarity-jaccard-prefix(3, [1, 2, 3], 9, [1, 2, 3], 1, .5f),
-
-  similarity-jaccard-prefix(4, [1, 2, 3, 4], 2, [1, 2], 1, .5f),
-  similarity-jaccard-prefix(4, [1, 2, 3, 4], 4, [1, 2], 1, .33f)
-]
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.3.query.aql
new file mode 100644
index 0000000..31c8b1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.3.query.aql
@@ -0,0 +1,19 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := [1, 2, 3, 4, 5]
+let $c := [1, 2, 3, 4, 5, 8, 9]
+let $d := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
+let $results :=
+[
+  similarity-jaccard-sorted-check($a, $b, 0.0f),
+  similarity-jaccard-sorted-check($b, $a, 0.0f),
+  similarity-jaccard-sorted-check($a, $b, 0.1f),
+  similarity-jaccard-sorted-check($b, $a, 0.1f),
+  similarity-jaccard-sorted-check($c, $d, 0.6f),
+  similarity-jaccard-sorted-check($d, $c, 0.6f),
+  similarity-jaccard-sorted-check($c, $d, 0.8f),
+  similarity-jaccard-sorted-check($d, $c, 0.8f)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.ddl.aql
new file mode 100644
index 0000000..2598fe4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.ddl.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.3.query.aql
new file mode 100644
index 0000000..a8089ec
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Cooperative Transactions for Environments")
+let $jacc := similarity-jaccard-sorted-check($paper_tokens, $query_tokens, 0.5f)
+where $jacc[0]
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.ddl.aql
new file mode 100644
index 0000000..16769de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.3.query.aql
new file mode 100644
index 0000000..326b626
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.3.query.aql
@@ -0,0 +1,25 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := ["abc", "bcd", "cde", "def", "efg"]
+let $c := ["abc", "bcd", "cde", "def", "efg", "hij", "ijk"]
+let $d := ["abc", "bcd", "cde", "def", "efg", "fgh", "ghi", "hij", "ijk", "jkl"]
+let $e := ["Abc", "bCd", "cdE", "DEf", "eFG", "HiJ", "IJK"]
+let $f := ["abc", "bcd", "cde", "def", "efg", "fgh", "ghi", "hij", "ijk", "jkl"]
+let $results :=
+[
+  similarity-jaccard-sorted-check($a, $b, 0.0f),
+  similarity-jaccard-sorted-check($b, $a, 0.0f),
+  similarity-jaccard-sorted-check($a, $b, 0.1f),
+  similarity-jaccard-sorted-check($b, $a, 0.1f),
+  similarity-jaccard-sorted-check($c, $d, 0.6f),
+  similarity-jaccard-sorted-check($d, $c, 0.6f),
+  similarity-jaccard-sorted-check($c, $d, 0.8f),
+  similarity-jaccard-sorted-check($d, $c, 0.8f),
+  similarity-jaccard-sorted-check($e, $f, 0.6f),
+  similarity-jaccard-sorted-check($f, $e, 0.6f),
+  similarity-jaccard-sorted-check($e, $f, 0.8f),
+  similarity-jaccard-sorted-check($f, $e, 0.8f)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.3.query.aql
new file mode 100644
index 0000000..0915bd6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := [1, 2, 3, 4, 5]
+let $c := [1, 2, 3, 4, 5, 8, 9]
+let $d := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
+let $results := 
+[
+  similarity-jaccard-sorted($a, $b),
+  similarity-jaccard-sorted($b, $a),
+  similarity-jaccard-sorted($c, $d),
+  similarity-jaccard-sorted($d, $c)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.ddl.aql
new file mode 100644
index 0000000..cad2811
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.3.query.aql
new file mode 100644
index 0000000..6d6e2c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Cooperative Transactions for Environments")
+where similarity-jaccard-sorted($paper_tokens, $query_tokens) >= 0.5
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.3.query.aql
new file mode 100644
index 0000000..2271db0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.3.query.aql
@@ -0,0 +1,19 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := ["abc", "bcd", "cde", "def", "efg"]
+let $c := ["abc", "bcd", "cde", "def", "efg", "hij", "ijk"]
+let $d := ["abc", "bcd", "cde", "def", "efg", "fgh", "ghi", "hij", "ijk", "jkl"]
+let $e := ["Abc", "bCd", "cdE", "DEf", "eFG", "HiJ", "IJK"]
+let $f := ["abc", "bcd", "cde", "def", "efg", "fgh", "ghi", "hij", "ijk", "jkl"]
+let $results :=
+[
+  similarity-jaccard-sorted($a, $b),
+  similarity-jaccard-sorted($b, $a),
+  similarity-jaccard-sorted($c, $d),
+  similarity-jaccard-sorted($d, $c),
+  similarity-jaccard-sorted($e, $f),
+  similarity-jaccard-sorted($f, $e)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_01.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_01.aql
deleted file mode 100644
index ae0747e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard_01.adm";
-
-let $a := [1, 2, 3, 4, 5, 8, 9]
-let $b := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
-let $jacc := similarity-jaccard($a, $b)
-return $jacc
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_02.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_02.aql
deleted file mode 100644
index d0a7e1f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard_02.adm";
-
-let $a := ["a"]
-let $b := ["b"]
-let $jacc := similarity-jaccard($a, $b)
-return $jacc
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_03.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_03.aql
deleted file mode 100644
index fd5dd21..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_03.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/similarity_similarity-jaccard_03.adm";
-
-let $a := ["a"]
-let $b := [ ]
-let $jacc := similarity-jaccard($a, $b)
-return $jacc
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.3.query.aql
new file mode 100644
index 0000000..a76a82a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_ints/similarity-jaccard_ints.3.query.aql
@@ -0,0 +1,19 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := [1, 2, 3, 4, 5]
+let $c := [1, 2, 3, 4, 5, 8, 9]
+let $d := [1, 2, 3, 4, 5, 7, 8, 9, 10, 11]
+let $e := [4, 3, 5, 8, 9, 2, 1]
+let $f := [7, 5, 8, 9, 3, 10, 1, 2, 11, 4]
+let $results :=
+[
+  similarity-jaccard($a, $b),
+  similarity-jaccard($b, $a),
+  similarity-jaccard($c, $d),
+  similarity-jaccard($d, $c),
+  similarity-jaccard($e, $f),
+  similarity-jaccard($f, $e)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.1.ddl.aql
new file mode 100644
index 0000000..cad2811
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type DBLPType as closed {
+  id: int32, 
+  dblpid: string,
+  title: string,
+  authors: string,
+  misc: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset DBLP(DBLPType) 
+  primary key id on group1;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.2.update.aql
new file mode 100644
index 0000000..29632d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+load dataset DBLP 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.3.query.aql
new file mode 100644
index 0000000..86cc50f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_query/similarity-jaccard_query.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $paper in dataset('DBLP')
+let $paper_tokens := word-tokens($paper.title)
+let $query_tokens := word-tokens("Transactions for Cooperative Environments")
+where similarity-jaccard($paper_tokens, $query_tokens) >= 0.5f
+return $paper
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.3.query.aql
new file mode 100644
index 0000000..b7c627e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/similarity/similarity-jaccard_strings/similarity-jaccard_strings.3.query.aql
@@ -0,0 +1,23 @@
+use dataverse test;
+
+let $a := [ ]
+let $b := ["abc", "bcd", "cde", "def", "efg"]
+let $c := ["abc", "bcd", "cde", "def", "efg", "hij", "ijk"]
+let $d := ["abc", "bcd", "cde", "def", "efg", "fgh", "ghi", "hij", "ijk", "jkl"]
+let $e := ["efg", "abc", "cde", "def", "hij", "ijk", "bcd"]
+let $f := ["abc", "ijk", "bcd", "efg", "fgh", "ghi", "def", "hij", "jkl", "cde"]
+let $g := ["Efg", "aBc", "cdE", "DEf", "hIJ", "IjK", "BCD"]
+let $h := ["abc", "ijk", "bcd", "efg", "fgh", "ghi", "def", "hij", "jkl", "cde"]
+let $results :=
+[
+  similarity-jaccard($a, $b),
+  similarity-jaccard($b, $a),
+  similarity-jaccard($c, $d),
+  similarity-jaccard($d, $c),
+  similarity-jaccard($e, $f),
+  similarity-jaccard($f, $e),
+  similarity-jaccard($g, $h),
+  similarity-jaccard($h, $g)
+]
+for $i in $results
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering.aql
deleted file mode 100644
index 0face3b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering.aql
+++ /dev/null
@@ -1,41 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type Tweet as closed {
-	id: int32,
-	tweetid: int64,
-	loc: point,
-	time: datetime,
-	text: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset TwitterData(Tweet)
-  partitioned by key id on group1;
-
-
-load dataset TwitterData 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm")) pre-sorted;
-
-create index rtree_index_point on TwitterData(loc) type rtree;
-
-write output to nc1:"rttest/spatial_cell-aggregation-with-filtering.adm";
-
-for $t in dataset('TwitterData')
-let $keyword := "Allergies"
-let $region := polygon("
-	33.80503407287759,-126.41235263538363 
-	44.9090773200516,-126.41235263538363 
-	44.9090773200516,-87.65258701038363 
-	33.80503407287759,-87.65258701038363")
-
-where spatial-intersect($t.loc, $region)  and
-$t.time > datetime("2011-05-15T00:00:00Z") and $t.time < datetime("2011-05-16T23:59:59Z") and
-contains($t.text, $keyword)
-group by $c := spatial-cell($t.loc, create-point(24.5,-125.5), 3.0, 3.0) with $t
-let $num :=  count($t)
-order by $num
-return { "cell": $c, "count": $num }
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.1.ddl.aql
new file mode 100644
index 0000000..11258d6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.1.ddl.aql
@@ -0,0 +1,18 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Tweet as closed {
+	id: int32,
+	tweetid: int64,
+	loc: point,
+	time: datetime,
+	text: string
+}
+
+create nodegroup group1 if not exists on nc1, nc2;
+
+create dataset TwitterData(Tweet)
+  primary key id on group1;
+
+create index rtree_index_point on TwitterData(loc) type rtree;
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.2.update.aql
new file mode 100644
index 0000000..f958d75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+load dataset TwitterData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/twitter/extrasmalltweets.txt"),("format"="adm")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.3.query.aql
new file mode 100644
index 0000000..9358c18
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.3.query.aql
@@ -0,0 +1,17 @@
+use dataverse test;
+
+for $t in dataset('TwitterData')
+let $keyword := "Allergies"
+let $region := polygon("
+	33.80503407287759,-126.41235263538363 
+	44.9090773200516,-126.41235263538363 
+	44.9090773200516,-87.65258701038363 
+	33.80503407287759,-87.65258701038363")
+
+where spatial-intersect($t.loc, $region)  and
+$t.time > datetime("2011-05-15T00:00:00Z") and $t.time < datetime("2011-05-16T23:59:59Z") and
+contains($t.text, $keyword)
+group by $c := spatial-cell($t.loc, create-point(24.5,-125.5), 3.0, 3.0) with $t
+let $num :=  count($t)
+order by $num
+return { "cell": $c, "count": $num }
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation.aql
deleted file mode 100644
index 44ad6ea..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation.aql
+++ /dev/null
@@ -1,23 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  loc: point
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialDataAggregation.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_cell-aggregation.adm";
-
-let $grid :=
-for $o in dataset('MyData')
-group by $c := spatial-cell($o.loc, create-point(0.0,0.0), 5.0, 5.0) with $o
-let $num :=  count($o)
-order by $num
-return { "cell": $c, "count": $num}
-for $g in $grid
-return $g
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.1.ddl.aql
new file mode 100644
index 0000000..ef981bb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.1.ddl.aql
@@ -0,0 +1,12 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  loc: point
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialDataAggregation.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.3.query.aql
new file mode 100644
index 0000000..ecec58d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/cell-aggregation/cell-aggregation.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+let $grid :=
+for $o in dataset('MyData')
+group by $c := spatial-cell($o.loc, create-point(0.0,0.0), 5.0, 5.0) with $o
+let $num :=  count($o)
+order by $num
+return { "cell": $c, "count": $num}
+for $g in $grid
+return $g
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle.aql
deleted file mode 100644
index 6018671..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_circle-intersect-circle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect(create-circle(create-point(0.0,0.0), 5.0), create-circle(create-point(9.9,0.0), 5.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.3.query.aql
new file mode 100644
index 0000000..e762ddf8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle-intersect-circle/circle-intersect-circle.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect(create-circle(create-point(0.0,0.0), 5.0), $o.circle)
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.1.ddl.aql
new file mode 100644
index 0000000..e6e10a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.2.update.aql
new file mode 100644
index 0000000..c978b14
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.3.query.aql
new file mode 100644
index 0000000..3e217c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/circle_accessor/circle_accessor.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+use dataverse test;
+
+let $circle := create-circle(create-point(6.0,3.0), 1.0)
+return {"circle-radius": get-radius($circle), "circle-center": get-center($circle)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.1.ddl.aql
new file mode 100644
index 0000000..cc8c544
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.1.ddl.aql
@@ -0,0 +1,25 @@
+/*
+ * Description    : Create r-tree indexes for all spatial data types.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type SpatialType as open {
+  id: int32,
+  point: point,
+  line1: line,
+  poly1: polygon,
+  rec: rectangle,
+  circle: circle
+}
+
+create dataset MyData(SpatialType) primary key id;
+create index rtree_index1 on MyData(point) type rtree;
+create index rtree_index2 on MyData(line1) type rtree;
+create index rtree_index3 on MyData(poly1) type rtree;
+create index rtree_index5 on MyData(rec) type rtree;
+create index rtree_index4 on MyData(circle) type rtree;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.2.update.aql
new file mode 100644
index 0000000..264e49b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description    : Create r-tree indexes for all spatial data types.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+load dataset MyData 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.3.query.aql
new file mode 100644
index 0000000..53b1c30
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/create-rtree-index/create-rtree-index.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Create r-tree indexes for all spatial data types.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+for $a in dataset('MyData')
+return $a.id
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points.aql
deleted file mode 100644
index c02eba2..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_distance-between-points.adm";
-
-for $o in dataset('MyData')
-let $distance := spatial-distance($o.point, create-point(0.0, 0.0))
-order by $o.id
-return {"id":$o.id, "distance":$distance}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.3.query.aql
new file mode 100644
index 0000000..9095224
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/distance-between-points/distance-between-points.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+let $distance := spatial-distance($o.point, create-point(0.0, 0.0))
+order by $o.id
+return {"id":$o.id, "distance":$distance}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle.aql
deleted file mode 100644
index 035ec63..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_line-intersect-circle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.line1, create-circle(create-point(0.0,0.0), 5.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.3.query.aql
new file mode 100644
index 0000000..fda31b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-circle/line-intersect-circle.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.line1, create-circle(create-point(0.0,0.0), 5.0))
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line.aql
deleted file mode 100644
index e844030..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_line-intersect-line.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.line1, $o.line2)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.3.query.aql
new file mode 100644
index 0000000..e1768ab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-line/line-intersect-line.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.line1, $o.line2)
+order by $o.id
+return {"id":$o.id}
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon.aql
deleted file mode 100644
index 7ed8e25..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_line-intersect-polygon.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.line1, $o.poly1)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.3.query.aql
new file mode 100644
index 0000000..ee45ed0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-polygon/line-intersect-polygon.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.line1, $o.poly1)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle.aql
deleted file mode 100644
index 940f5c4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-  using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-  (("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_line-intersect-rectangle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.line1, $o.rec)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.1.ddl.aql
new file mode 100644
index 0000000..a920acd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+  using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+  (("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.3.query.aql
new file mode 100644
index 0000000..ef3b9b1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line-intersect-rectangle/line-intersect-rectangle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.line1, $o.rec)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.1.ddl.aql
new file mode 100644
index 0000000..febae58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.2.update.aql
new file mode 100644
index 0000000..e4f7747
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.3.query.aql
new file mode 100644
index 0000000..4c4992e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/line_accessor/line_accessor.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+use dataverse test;
+
+let $line := create-line(create-point(100.6,999.4), create-point(-872.0,-876.9))
+let $line_list := get-points($line)
+for $p in $line_list
+return $p
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point.aql
deleted file mode 100644
index 90d488f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_point-equals-point.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, create-point(5.0,1.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.2.update.aql
new file mode 100644
index 0000000..1ecf3aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.3.query.aql
new file mode 100644
index 0000000..e4e1fcd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-equals-point/point-equals-point.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-point(5.0,1.0))
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle.aql
deleted file mode 100644
index 9f9e451..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_point-in-circle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, create-circle(create-point(0.0,0.0), 5.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.1.ddl.aql
new file mode 100644
index 0000000..7e614c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.3.query.aql
new file mode 100644
index 0000000..bcbad2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-circle/point-in-circle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, create-circle(create-point(0.0,0.0), 5.0))
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon.aql
deleted file mode 100644
index c239185..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_point-in-polygon.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, $o.poly1)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.1.ddl.aql
new file mode 100644
index 0000000..7e614c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.3.query.aql
new file mode 100644
index 0000000..e5aada0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-polygon/point-in-polygon.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, $o.poly1)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle.aql
deleted file mode 100644
index 86d3dd9..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_point-in-rectangle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, $o.rec)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.3.query.aql
new file mode 100644
index 0000000..b5d11f7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-in-rectangle/point-in-rectangle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, $o.rec)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line.aql
deleted file mode 100644
index 66908b8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_point-on-line.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.point, $o.line1)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.3.query.aql
new file mode 100644
index 0000000..514dc69
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point-on-line/point-on-line.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.point, $o.line1)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.1.ddl.aql
new file mode 100644
index 0000000..febae58
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.2.update.aql
new file mode 100644
index 0000000..e4f7747
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.3.query.aql
new file mode 100644
index 0000000..db136d9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/point_accessor/point_accessor.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+use dataverse test;
+
+let $point := create-point(2.3,5.0)
+return {"x-coordinate": get-x($point), "y-coordinate": get-y($point)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle.aql
deleted file mode 100644
index acd29a8..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_polygon-intersect-circle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.poly1, create-circle(create-point(6.0,3.0), 1.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.3.query.aql
new file mode 100644
index 0000000..2b066b0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-circle/polygon-intersect-circle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.poly1, create-circle(create-point(6.0,3.0), 1.0))
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon.aql
deleted file mode 100644
index 2a14dbd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_polygon-intersect-polygon.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.poly1, $o.poly2)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.1.ddl.aql
new file mode 100644
index 0000000..e123144
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.3.query.aql
new file mode 100644
index 0000000..0f6bc82
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-polygon/polygon-intersect-polygon.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.poly1, $o.poly2)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle.aql
deleted file mode 100644
index 16bb5a1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_polygon-intersect-rectangle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.poly1, $o.rec)
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.3.query.aql
new file mode 100644
index 0000000..5cf1c85
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.poly1, $o.rec)
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.1.ddl.aql
new file mode 100644
index 0000000..e6e10a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.2.update.aql
new file mode 100644
index 0000000..e4f7747
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.3.query.aql
new file mode 100644
index 0000000..54ccf92
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/polygon_accessor/polygon_accessor.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+use dataverse test;
+
+let $polygon := create-polygon(create-point(1.0,1.0), create-point(2.0,2.0), create-point(3.0,3.0), create-point(4.0,4.0))
+let $polygon_list := get-points($polygon)
+for $p in $polygon_list
+return $p
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle.aql
deleted file mode 100644
index 4f7c004..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_rectangle-intersect-circle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.rec, create-circle(create-point(4.1,4.1), 1.0))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.3.query.aql
new file mode 100644
index 0000000..e5ecf77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-circle/rectangle-intersect-circle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.rec, create-circle(create-point(4.1,4.1), 1.0))
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle.aql
deleted file mode 100644
index 90c9f77..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_rectangle-intersect-rectangle.adm";
-
-for $o in dataset('MyData')
-where spatial-intersect($o.rec, create-rectangle(create-point(-1.0,5.0), create-point(4.5,9.0)))
-order by $o.id
-return {"id":$o.id}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.3.query.aql
new file mode 100644
index 0000000..4691341
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+for $o in dataset('MyData')
+where spatial-intersect($o.rec, create-rectangle(create-point(4.5,9.0), create-point(-1.0,5.0)))
+order by $o.id
+return {"id":$o.id}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.1.ddl.aql
new file mode 100644
index 0000000..e6e10a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.2.update.aql
new file mode 100644
index 0000000..e4f7747
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+// no inserts, deletes
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.3.query.aql
new file mode 100644
index 0000000..98df270
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/rectangle_accessor/rectangle_accessor.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 17, 2012
+ */
+
+use dataverse test;
+
+let $rectangle := create-rectangle(create-point(9.2,49.0), create-point(77.8,111.1))
+let $rectangle_list := get-points($rectangle)
+for $p in $rectangle_list
+return $p
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area.aql
deleted file mode 100644
index 7f6c0b7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type MyRecord as open {
-  id: int32,
-  point: point,
-  kwds: string
-}
-
-create external dataset MyData(MyRecord)
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
-
-write output to nc1:"rttest/spatial_spatial-area.adm";
-
-let $polygonArea := spatial-area(create-polygon(create-point(1.0,1.0),create-point(1.0,4.0),create-point(3.0,4.0),create-point(3.0,1.0)))
-let $circleArea := spatial-area(create-circle(create-point(0.0,0.0), 1.0))
-let $rectangleArea := spatial-area(create-rectangle(create-point(0.0,5.0), create-point(8.0,8.0)))
-return {"polygonArea":$polygonArea, "circleArea":$circleArea, "rectangleArea":$rectangleArea}
- 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.1.ddl.aql
new file mode 100644
index 0000000..1914a96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type MyRecord as open {
+  id: int32,
+  point: point,
+  kwds: string
+}
+
+create external dataset MyData(MyRecord)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/spatial/spatialData.json"),("format"="adm"));
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.2.update.aql
new file mode 100644
index 0000000..bb883a0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.2.update.aql
@@ -0,0 +1 @@
+// no inserts, deletes 
diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.3.query.aql
new file mode 100644
index 0000000..940dfe8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial-area/spatial-area.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $polygonArea := spatial-area(create-polygon(create-point(1.0,1.0),create-point(1.0,4.0),create-point(3.0,4.0),create-point(3.0,1.0)))
+let $circleArea := spatial-area(create-circle(create-point(0.0,0.0), 1.0))
+let $rectangleArea := spatial-area(create-rectangle(create-point(0.0,5.0), create-point(8.0,8.0)))
+return {"polygonArea":$polygonArea, "circleArea":$circleArea, "rectangleArea":$rectangleArea}
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.3.query.aql
new file mode 100644
index 0000000..c6330cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string1/codepoint-to-string1.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x :=  [20013, 25991, 23383, 31526]
+let $c := codepoint-to-string($x)
+return {"result1": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.3.query.aql
new file mode 100644
index 0000000..b3da48f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/codepoint-to-string2/codepoint-to-string2.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+let $x1 :=  []
+let $c1 := codepoint-to-string($x1)
+
+let $x2 :=  [97,98,99]
+let $c2 := codepoint-to-string($x2)
+return {"f1": $c1, "f2" : $c2}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.3.query.aql
new file mode 100644
index 0000000..f86fa33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat_01/concat_01.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+let $x :=  ["aa", "25991", "bb", "31526"]
+let $c := string-concat($x)
+
+let $x1 :=  []
+let $c1 := string-concat($x1)
+return {"result1": $c,"result2": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.1.ddl.aql
new file mode 100644
index 0000000..53b91d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description    : Test concat-string function with nulls in the list which is passed as an argument.
+ * Success        : Yes
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.2.update.aql
new file mode 100644
index 0000000..f0738e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Test concat-string function with nulls in the list which is passed as an argument.
+ * Success        : Yes
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.3.query.aql
new file mode 100644
index 0000000..164d7a9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/concat_02/concat_02.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description    : Test concat-string function with nulls in the list which is passed as an argument.
+ * Success        : Yes
+ */
+
+use dataverse test;
+
+let $a := string-concat([null])
+let $b := string-concat([null, "foo"])
+let $c := string-concat(["foo", null])
+return {"a": $a, "b": $b, "c": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/contains_01.aql b/asterix-app/src/test/resources/runtimets/queries/string/contains_01.aql
deleted file mode 100644
index 19ab917..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/contains_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_contains_01.adm";
-
-for $x in ["foofoo"]
-for $y in ["barbar"]
-return [contains($x, "ofo"), contains($y, "ofo")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.3.query.aql
new file mode 100644
index 0000000..df2d48a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/contains_01/contains_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in ["foofoo"]
+for $y in ["barbar"]
+return [contains($x, "ofo"), contains($y, "ofo")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.1.ddl.aql
new file mode 100644
index 0000000..e9cf00a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Test case Name : cpttostr01.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Pass the codepoints which are in the internal dataset to the function. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open{
+id:int32,
+cpt:[int32]
+}
+
+create dataset testds(TestType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.2.update.aql
new file mode 100644
index 0000000..7c83cdf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.2.update.aql
@@ -0,0 +1,15 @@
+/*
+ * Test case Name : cpttostr01.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Pass the codepoints which are in the internal dataset to the function. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+use dataverse test;
+
+// insert codepoint data into internal dataset testds here into the cpt attribute
+
+insert into dataset testds({"id":123,"cpt":[0048,0045,0057,0044,0065,0045,0090]});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.3.query.aql
new file mode 100644
index 0000000..0c4e466
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr01/cpttostr01.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Test case Name : cpttostr01.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Pass the codepoints which are in the internal dataset to the function. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+use dataverse test;
+
+for $l in dataset('testds')
+return codepoint-to-string($l.cpt)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.1.ddl.aql
new file mode 100644
index 0000000..a1db4b5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Test case Name : cpttostr02.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Inputs are codepoint values for lowecase, uppercase and special characters
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.2.update.aql
new file mode 100644
index 0000000..a1db4b5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Test case Name : cpttostr02.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Inputs are codepoint values for lowecase, uppercase and special characters
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.3.query.aql
new file mode 100644
index 0000000..91f6403
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr02/cpttostr02.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Test case Name : cpttostr02.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ *                : Inputs are codepoint values for lowecase, uppercase and special characters
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+let $c1 := codepoint-to-string([0065,0066,0067,0068,0069,0070,0071,0072,0073,0074,0075,0076,0077,0078,0079,0080,0081,0082,0083,0084,0085,0086,0087,0088,0089,0090]) 
+
+let $c2 := codepoint-to-string([0097,0098,0099,0100,0101,0102,0103,0104,0105,0106,0107,0108,0109,0110,0111,0112,0113,0114,0115,0116,0117,0118,0119,0120,0121,0122]) 
+
+let $c3 := codepoint-to-string([0033,0034,0035,0036,0037,0038,0039,0040,0041,0042,0043,0044,0045,0046,0047,0048,0049,0050,0051,0052,0053,0054,0055,0063,0064]) 
+
+return {"c1":$c1,"c2":$c2,"c3":$c3}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.1.ddl.aql
new file mode 100644
index 0000000..4ce693a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Test case Name : cpttostr04.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+//Input = Output
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.2.update.aql
new file mode 100644
index 0000000..4ce693a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Test case Name : cpttostr04.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+//Input = Output
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.3.query.aql
new file mode 100644
index 0000000..1f298f8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/cpttostr04/cpttostr04.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Test case Name : cpttostr04.aql
+ * Description    : Test codepoint-to-string(codepoint) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+//Input = Output
+
+let $c1 := codepoint-to-string(string-to-codepoint("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"))
+return { "c1":$c1 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.3.query.aql
new file mode 100644
index 0000000..da40784
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with1/end-with1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := end-with("hello world","werld")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.3.query.aql
new file mode 100644
index 0000000..9abe1ac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with2/end-with2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := end-with("hello world"," world")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.3.query.aql
new file mode 100644
index 0000000..af7378d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with3/end-with3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := end-with("ends","")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.3.query.aql
new file mode 100644
index 0000000..787f51b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with4/end-with4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := end-with("ends","ss")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.3.query.aql
new file mode 100644
index 0000000..29378bb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/end-with5/end-with5.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+let $c1 := end-with("ends","s")
+let $c2 := end-with("start",null)
+let $c3 := end-with(null,null)
+let $c4 := end-with("",null)
+let $c5 := end-with("","")
+let $c6 := end-with(null,"")
+
+return {"f1": $c1, "f2": $c2, "f3": $c3, "f4": $c4, "f5": $c5, "f6": $c6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01.aql b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01.aql
deleted file mode 100644
index 251ebe7..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_ends-with_01.adm";
-
-for $x in ["foofoo"]
-for $y in ["barbar"]
-return [ends-with($x, "ar"), ends-with($y, "ar")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.3.query.aql
new file mode 100644
index 0000000..8f56df3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/ends-with_01/ends-with_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in ["foofoo"]
+for $y in ["barbar"]
+return [ends-with($x, "ar"), ends-with($y, "ar")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.1.ddl.aql
new file mode 100644
index 0000000..9f26abc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name : endwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.2.update.aql
new file mode 100644
index 0000000..9f26abc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name : endwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.3.query.aql
new file mode 100644
index 0000000..0ab3988
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith02/endwith02.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Testcase Name : endwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
+
+for $a in [end-with("aBCDEFghIa",codepoint-to-string([0041])),
+end-with("AbCDEFghIA",codepoint-to-string([0041])),
+end-with("AbCdEfGhIjKlMnOpQrStUvWxYz","xYz"),
+end-with("abcdef",lowercase("ABCDEf")),
+end-with("abcdef","abcdef"),
+end-with("abcdef123","ef123")]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.1.ddl.aql
new file mode 100644
index 0000000..6f6e9f0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Testcase Name : endwith03.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
+// create internal dataset, insert string data into string field and pass the string filed as input to end-with function
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as {
+name:string
+}
+
+create dataset testds(TestType) primary key name;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.2.update.aql
new file mode 100644
index 0000000..9a9752d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Testcase Name : endwith03.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
+// create internal dataset, insert string data into string field and pass the string filed as input to end-with function
+
+use dataverse test;
+
+insert into dataset testds({"name":"Jim Jones"});
+insert into dataset testds({"name":"Ravi Kumar"});
+insert into dataset testds({"name":"Bruce Li"});
+insert into dataset testds({"name":"Marian Jones"});
+insert into dataset testds({"name":"Phil Jones"});
+insert into dataset testds({"name":"I am Jones"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.3.query.aql
new file mode 100644
index 0000000..b267e84
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/endwith03/endwith03.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Testcase Name : endwith03.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 20th April 2012
+ */
+
+// create internal dataset, insert string data into string field and pass the string filed as input to end-with function
+
+use dataverse test;
+
+for $l in dataset('testds')
+order by $l.name
+where end-with($l.name,"Jones")
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.3.query.aql
new file mode 100644
index 0000000..f3aa6f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/length_01/length_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := string-length("hellow")
+let $c2 := string-length("")
+let $c3 := string-length(null)
+return {"result1": $c1, "result2": $c2, "result3": $c3}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.3.query.aql
new file mode 100644
index 0000000..8d4dca8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/length_02/length_02.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x in ["ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "ninety"]
+return string-length($x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_01.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_01.aql
deleted file mode 100644
index 71a2545..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/like_01.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_like_01.adm";
-
-[like("A6BBB", "_6%"), like("A8BBB", "_6%")]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.3.query.aql
new file mode 100644
index 0000000..73181a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/like_01/like_01.3.query.aql
@@ -0,0 +1,3 @@
+use dataverse test;
+
+[like("A6BBB", "_6%"), like("A8BBB", "_6%")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_null.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_null.aql
deleted file mode 100644
index 4578a9e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/like_null.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_like_null.adm";
-
-let $x := like("A8BBB", null)
-let $y :=  like(null, "_6%")
-return {"field1": $x , "field2": $y}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.3.query.aql
new file mode 100644
index 0000000..57466d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/like_null/like_null.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x := like("A8BBB", null)
+let $y :=  like(null, "_6%")
+return {"field1": $x , "field2": $y}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.3.query.aql
new file mode 100644
index 0000000..3f8dde9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/lowercase/lowercase.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := lowercase("HEllow")
+let $c2 := lowercase("")
+let $c3 := lowercase(null)
+return {"result1": $c1, "result2": $c2, "result3": $c3}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.1.ddl.aql
new file mode 100644
index 0000000..7428895
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches02.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.2.update.aql
new file mode 100644
index 0000000..7428895
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches02.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.3.query.aql
new file mode 100644
index 0000000..52b5b23
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches02/matches02.3.query.aql
@@ -0,0 +1,21 @@
+/*
+ * Testcase Name  :  matches02.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
+let $c1:="Hello World"
+let $c2:="Hello World"
+let $c3:=matches($c1,$c2)
+let $c4:=matches("Asterix for Dummies","Asterix for Dummies")
+let $c5:=matches("semistructured data",lowercase("SEMISTRUCTURED DATA"))
+let $c6:=matches("Mega Living!","Mega")
+let $c7:=matches("Mega Living!","ving!")
+let $c8:=matches("Mega Living!"," ")
+let $c9:=matches("Mega Living!","a l")
+let $c10:=matches("Mega Living!","")
+let $c11:=matches(" "," ")
+let $c12:=matches("aaaa","aaaaa")
+return {"c3":$c3,"c4":$c4,"c5":$c5,"c6":$c6,"c7":$c7,"c8":$c8,"c9":$c9,"c10":$c10,"c11":$c11,"c12":$c12}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.1.ddl.aql
new file mode 100644
index 0000000..3fa68f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.1.ddl.aql
@@ -0,0 +1,9 @@
+/*
+ * Testcase Name  :  matches03.aql
+ * Description    :  Positive tests
+ *                :  Test matches functions with regular expressions as third input parameter
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.2.update.aql
new file mode 100644
index 0000000..3fa68f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Testcase Name  :  matches03.aql
+ * Description    :  Positive tests
+ *                :  Test matches functions with regular expressions as third input parameter
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.3.query.aql
new file mode 100644
index 0000000..f665a30
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches03/matches03.3.query.aql
@@ -0,0 +1,23 @@
+/*
+ * Testcase Name  :  matches03.aql
+ * Description    :  Positive tests
+ *                :  Test matches functions with regular expressions as third input parameter
+ * Success        :  Yes
+ * Date           :  23th April 2012
+ */
+
+for $a in [matches("1234567890","[^a-z]"),
+matches("1234567890","[^a-zA-Z]"),
+matches("abcdefghABCDEFGH","[^a-zA-Z]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[^a-zA-Z]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[^A-Z]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[^a-z]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[^0-9]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[0-9]"),
+matches("adefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[a-z&&[^bc]]"),
+matches("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ","[a-z&&[^bc]]"),
+matches("bc","[a-z&&[^bc]]"),
+matches("mnop","[a-z&&[^m-p]]"),
+matches("abcdmnop","[a-z&&[^m-p]]")]
+return $a
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.1.ddl.aql
new file mode 100644
index 0000000..babe8ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches04.aql
+ * Description    :  Positive tests
+ * Success        :  Yes (tests to check for patterns using regular expressions)
+ * Date           :  20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.2.update.aql
new file mode 100644
index 0000000..babe8ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches04.aql
+ * Description    :  Positive tests
+ * Success        :  Yes (tests to check for patterns using regular expressions)
+ * Date           :  20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.3.query.aql
new file mode 100644
index 0000000..a202961
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches04/matches04.3.query.aql
@@ -0,0 +1,15 @@
+/*
+ * Testcase Name  :  matches04.aql
+ * Description    :  Positive tests
+ * Success        :  Yes (tests to check for patterns using regular expressions)
+ * Date           :  20th April 2012
+ */
+
+for $a in [matches("UCI UCI UCI UCI UCI UCI","[UCI{6}]"),
+matches("UCI UCI UCI UCI UCI UCI","[UCI{3,6}]"),
+matches("UCI UCI UCI UCI UCI UCI","[UCI{7}]"),
+matches("UCI UCI UCI UCI UCI UCI","[UCI{1}]"),
+matches("UCI UCI UCI","[UCI+]"),
+matches("false","[true|false]"),
+matches("YX","[XY]")]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.1.ddl.aql
new file mode 100644
index 0000000..6665f77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name  :  matches05.aql
+ * Description    :  Positive tests
+ *                :  Create two internal datasets and insert string data and perform match of fname using matches function.
+ * Success        :  Yes
+ * Date           :  25th April 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType1 as{
+fname:string,
+lname:string,
+id:int32
+}
+
+create dataset testds1(TestType1) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.2.update.aql
new file mode 100644
index 0000000..b56e33e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.2.update.aql
@@ -0,0 +1,16 @@
+/*
+ * Testcase Name  :  matches05.aql
+ * Description    :  Positive tests
+ *                :  Create two internal datasets and insert string data and perform match of fname using matches function.
+ * Success        :  Yes
+ * Date           :  25th April 2012
+ */
+
+use dataverse test;
+
+insert into dataset testds1({"fname":"Test","lname":"Test","id":123});
+insert into dataset testds1({"fname":"Testa","lname":"Test","id":124});
+insert into dataset testds1({"fname":"Test1","lname":"Test1","id":125});
+insert into dataset testds1({"fname":"Test","lname":"Testb","id":126});
+insert into dataset testds1({"fname":"Test2","lname":"Test2","id":127});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.3.query.aql
new file mode 100644
index 0000000..0b14951
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches05/matches05.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Testcase Name  :  matches05.aql
+ * Description    :  Positive tests
+ *                :  Create two internal datasets and insert string data and perform match of fname using matches function.
+ * Success        :  Yes
+ * Date           :  25th April 2012
+ */
+
+
+use dataverse test;
+
+//Perform the match for fname and lname
+for $l in dataset('testds1')
+order by $l.id
+where matches($l.fname,$l.lname)
+return $l
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.1.ddl.aql
new file mode 100644
index 0000000..b7af427
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test matches string function using regular expressions
+ * Expected Res : Success
+ * Date         : May 21 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.2.update.aql
new file mode 100644
index 0000000..b7af427
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test matches string function using regular expressions
+ * Expected Res : Success
+ * Date         : May 21 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.3.query.aql
new file mode 100644
index 0000000..98f547b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches06/matches06.3.query.aql
@@ -0,0 +1,24 @@
+/*
+ * Description  : Test matches string function using regular expressions
+ * Expected Res : Success
+ * Date         : May 21 2012
+ */
+
+
+for $a in [matches("mnop","."),
+matches("abcdefABCDEF","/d"),
+matches("12345","\d"),
+matches("abcdefGHIJK","\D"),
+matches("       ","\s"),
+matches("       ","\S"),
+matches("Welcome to pattern matching!","[a-zA-Z_0-9]"),
+matches("!@#$%^&*()","[a-zA-Z_0-9]"),
+matches("!@#$%^&*()","[^\W]"),
+matches("!@#$%^&*","[^\w]"),
+matches("0xffff","[\p{XDigit}]"),
+matches("FFFFFFFF","[\p{XDigit}]"),
+matches("abcdefgh","[\p{javaLowerCase}]"),
+matches("ABCDEF","[\p{javaLowerCase}]"),
+matches(codepoint-to-string([0163]),"[\p{Sc}]")]
+return $a
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.3.query.aql
new file mode 100644
index 0000000..1139a9e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches1/matches1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("abracadabra","bra")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.1.ddl.aql
new file mode 100644
index 0000000..6822ad9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches11.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.2.update.aql
new file mode 100644
index 0000000..6822ad9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  :  matches11.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  20th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.3.query.aql
new file mode 100644
index 0000000..a60ea38
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches11/matches11.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase Name  :  matches11.aql
+ * Description    :  Positive tests
+ * Success        :  Yes
+ * Date           :  20th April 2012
+ */
+
+for $a in [matches("hello",null),
+matches("hello","helllo"),
+matches("hello"," "),
+matches(null,"hello"),
+matches("hello","[^a-z]")]
+return $a
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.3.query.aql
new file mode 100644
index 0000000..1e114ad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches2/matches2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("abracadabra","^a.*a$")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.3.query.aql
new file mode 100644
index 0000000..e874fcb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches21/matches21.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("abracadabra","Bra","")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.3.query.aql
new file mode 100644
index 0000000..7b5c9c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches22/matches22.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("abracadabra","Bra","i")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.3.query.aql
new file mode 100644
index 0000000..9d81aae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches23/matches23.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("helloworld","hello world","x")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.3.query.aql
new file mode 100644
index 0000000..1b9dc55
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matches3/matches3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := matches("abracadabra","^bra")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.3.query.aql
new file mode 100644
index 0000000..6ce6a77
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/matchesnull/matchesnull.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+let $c1 := matches("helloworld",null)
+let $c2 := matches("",null)
+let $c3 := matches(null,null)
+let $c4 := matches("helloworld",null, "")
+let $c5 := matches("",null, "i")
+let $c6 := matches(null,null, null)
+return {"result1": $c1, "result2": $c2, "result3": $c3, "result4": $c4, "result5": $c5, "result6": $c6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.3.query.aql
new file mode 100644
index 0000000..6a2b9c4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace1/replace1.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := replace("abracadabra", "a", "")
+let $c2 := replace("abracadabra", "a(.)", "a$1$1")
+let $c3 := replace("darted", "^(.*?)d(.*)$", "$1c$2")
+return {"result1": $c1, "result2": $c2, "result3": $c3}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.3.query.aql
new file mode 100644
index 0000000..4d1eac9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace2/replace2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := replace("abracadabra", "bra", "*")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.3.query.aql
new file mode 100644
index 0000000..3552126
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace21/replace21.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $c1 := replace("abracadabra","Bra", "kkk" , "")
+let $c2 := replace("abracadabra","Bra", "kkk" ,"i")
+let $c3 := replace("helloworld","hello world", "kkk" , "x")
+return {"result1": $c1,"result2": $c2,"result3": $c3}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.3.query.aql
new file mode 100644
index 0000000..df67481
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace22/replace22.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $c1 := replace("abracadabra","", null , null)
+let $c2 := replace("abracadabra","bra", "XXX" ,"")
+let $c3 := replace(null,"hello world", "XxXx" , "x")
+let $c4 := replace("abracadabra","bra", "XXX" ,null)
+let $c5 := replace("abracadabra",null, "XXX" ,null)
+let $c6 := replace("abracadabra","Bra", null ,"i")
+let $c7 := replace("abracadabra","Bra", "" ,"i")
+let $c8 := replace("abracadabra","", "XXX" ,"")
+return {"result1": $c1,"result2": $c2,"result3": $c3,"result4": $c4,"result5": $c5,"result6": $c6,"result7": $c7,"result8": $c8}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.3.query.aql
new file mode 100644
index 0000000..d032af4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/replace3/replace3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := replace("abracadabra", "a.*a", "*")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.3.query.aql
new file mode 100644
index 0000000..c9b67b5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with1/start-with1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := start-with("start","st")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.3.query.aql
new file mode 100644
index 0000000..8df6e95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with2/start-with2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := start-with("start","t")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.3.query.aql
new file mode 100644
index 0000000..c3e3a32
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with3/start-with3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := start-with("start","start")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.3.query.aql
new file mode 100644
index 0000000..90a58f7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with4/start-with4.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse test;
+
+let $c1 := start-with("start","")
+let $c2 := start-with("start",null)
+let $c3 := start-with(null,null)
+let $c4 := start-with("",null)
+let $c5 := start-with("","")
+let $c6 := start-with(null,"")
+
+return {"f1": $c1, "f2": $c2, "f3": $c3, "f4": $c4, "f5": $c5, "f6": $c6}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.3.query.aql
new file mode 100644
index 0000000..2008dfc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/start-with5/start-with5.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := start-with("","s")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01.aql b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01.aql
deleted file mode 100644
index ed36e2d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01.aql
+++ /dev/null
@@ -1,9 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_starts-with_01.adm";
-
-for $x in ["foofoo"]
-for $y in ["barbar"]
-return [starts-with($x, "ba"), starts-with($y, "ba")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.3.query.aql
new file mode 100644
index 0000000..3ad623c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/starts-with_01/starts-with_01.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+for $x in ["foofoo"]
+for $y in ["barbar"]
+return [starts-with($x, "ba"), starts-with($y, "ba")]
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.1.ddl.aql
new file mode 100644
index 0000000..fc5d025
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.2.update.aql
new file mode 100644
index 0000000..886f050
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.3.query.aql
new file mode 100644
index 0000000..7d6c8c1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith02/startwith02.3.query.aql
@@ -0,0 +1,24 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+for $a in [start-with("Hello","H"),
+start-with("Hello",lowercase("He")),
+start-with("Hello",""),
+start-with("Hello"," "),
+start-with("Hello",null),
+start-with("abcdef",lowercase("ABCDEf")),
+start-with("abcdef","abcdef"),
+start-with("abcdef","abc "),
+start-with("abc\tdef","abc\t"),
+start-with(" abcdef","abc"),
+start-with("0x1FF","0"),
+start-with("<ID>","<"),
+start-with("aBCDEFghI",codepoint-to-string([0041])),
+start-with("AbCDEFghI",codepoint-to-string([0041]))]
+return $a
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.1.ddl.aql
new file mode 100644
index 0000000..3b855ec
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+// Create internal dataset, insert string data into string field and pass the string field as first input to start-with function
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as {
+name:string
+}
+
+create dataset testds(TestType) primary key name;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.2.update.aql
new file mode 100644
index 0000000..451a6ab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.2.update.aql
@@ -0,0 +1,19 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+// Create internal dataset, insert string data into string field and pass the string field as first input to start-with function
+
+use dataverse test;
+
+insert into dataset testds({"name":"John Smith"});
+insert into dataset testds({"name":"John Doe"});
+insert into dataset testds({"name":"John Wayne"});
+insert into dataset testds({"name":"Johnson Ben"});
+insert into dataset testds({"name":"Johnny Walker"});
+insert into dataset testds({"name":"David Smith"});
+insert into dataset testds({"name":"Not a Name"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.3.query.aql
new file mode 100644
index 0000000..7cfa56b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/startwith03/startwith03.3.query.aql
@@ -0,0 +1,17 @@
+/*
+ * Testcase Name : startwith02.aql
+ * Description   : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+// Create internal dataset, insert string data into string field and pass the string field as first input to start-with function
+
+use dataverse test;
+
+// Return all names that start with John
+
+for $l in dataset('testds')
+order by $l.name
+where start-with($l.name,"John")
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.1.ddl.aql
new file mode 100644
index 0000000..706597f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case Name : strconcat01.aql
+ * Description    : Test string-concat([string]) function.
+ *                : Pass the strings(which are in internal dataset) to string-concat function for concatenation. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open{
+id:int32,
+fname:string,
+lname:string
+}
+
+create dataset testds(TestType) primary key id;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.2.update.aql
new file mode 100644
index 0000000..bb5329c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.2.update.aql
@@ -0,0 +1,23 @@
+/*
+ * Test case Name : strconcat01.aql
+ * Description    : Test string-concat([string]) function.
+ *                : Pass the strings(which are in internal dataset) to string-concat function for concatenation. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+use dataverse test;
+
+// insert string data into internal dataset testds into the name attribute
+
+insert into dataset testds({"id":123,"fname":"John","lname":"Smith"});
+insert into dataset testds({"id":124,"fname":"Bob","lname":"Jones"});
+insert into dataset testds({"id":125,"fname":"Mike","lname":"Carey"});
+insert into dataset testds({"id":126,"fname":"Chen","lname":"Li"});
+insert into dataset testds({"id":121,"fname":"Young Seok","lname":"Kim"});
+insert into dataset testds({"id":122,"fname":"Alex","lname":"Behm"});
+insert into dataset testds({"id":127,"fname":"Raman","lname":"Grover"});
+insert into dataset testds({"id":128,"fname":"Yingyi","lname":"Bu"});
+insert into dataset testds({"id":129,"fname":"Vinayak","lname":"Borkar"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.3.query.aql
new file mode 100644
index 0000000..422bd74
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat01/strconcat01.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Test case Name : strconcat01.aql
+ * Description    : Test string-concat([string]) function.
+ *                : Pass the strings(which are in internal dataset) to string-concat function for concatenation. 
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+use dataverse test;
+
+for $l in dataset('testds')
+order by $l.id
+return { "Full Name": string-concat([$l.fname,$l.lname]) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.1.ddl.aql
new file mode 100644
index 0000000..fdf5ee8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description    : Test string-concat([string]) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.2.update.aql
new file mode 100644
index 0000000..cad71cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description    : Test string-concat([string]) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.3.query.aql
new file mode 100644
index 0000000..10078a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strconcat02/strconcat02.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description    : Test string-concat([string]) function.
+ * Success        : Yes
+ * Date           : 16th April 2012
+ */
+
+
+for $a in [string-concat([codepoint-to-string(string-to-codepoint("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")),codepoint-to-string(string-to-codepoint("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")),codepoint-to-string(string-to-codepoint("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"))]),string-concat([" ","a","b","  ","c","d","e","f","g","p","o","q","r","s","t"," "]),string-concat(["This is a test","and all tests must pass","and life is good..."])]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.3.query.aql
new file mode 100644
index 0000000..331c299
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-concat1/string-concat1.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x :=  ["aa", "25991", "bb", "31526"]
+let $c := string-concat($x)
+return {"result1": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.3.query.aql
new file mode 100644
index 0000000..954ac57
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal1/string-equal1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := string-equal("test","tess")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.3.query.aql
new file mode 100644
index 0000000..66af45d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal2/string-equal2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := string-equal("test","test")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.3.query.aql
new file mode 100644
index 0000000..fe3b341
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal3/string-equal3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := string-equal("test11","test")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.3.query.aql
new file mode 100644
index 0000000..2b5166c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-equal4/string-equal4.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $c1 := string-equal("","")
+let $c3 := string-equal(null,"")
+let $c4 := string-equal("",null)
+let $c5 := string-equal(null,null)
+return {"result1": $c1, "result3": $c3, "result4": $c4, "result5": $c5}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.3.query.aql
new file mode 100644
index 0000000..6d4f980
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-join1/string-join1.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $x :=  ["aa", "25991", "bb", "31526"]
+let $s := "::"
+let $c := string-join($x,$s)
+let $c1 := string-join($x,"")
+return {"result0": $c,"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.3.query.aql
new file mode 100644
index 0000000..db332bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint/string-to-codepoint.3.query.aql
@@ -0,0 +1,5 @@
+use dataverse test;
+
+let $x :=  "abcd"
+let $c := string-to-codepoint($x)
+return {"result1": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.3.query.aql
new file mode 100644
index 0000000..d3a4a68
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint1/string-to-codepoint1.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $x :=  ""
+let $c := string-to-codepoint($x)
+
+return {"result1": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.1.ddl.aql
new file mode 100644
index 0000000..1e3cfc8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+/*
+for $a in [ string-length("abcdefghijklmnopqrstu"),
+string-length("ABCDEFGHIJKLMNOPQRSTU"),
+string-length("abcdEFGHijklMNOPqrstu"),
+string-length("abcd EFGH ijkl MNOP qrstu"),
+string-length("   Hello World    !!!!....:-)"),
+string-length(string-concat(["test string to","concatenate"])),
+string-length("~!@#$%^&*()_+{}:?<>/.,';`][\")]
+return $a
+*/
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.2.update.aql
new file mode 100644
index 0000000..1e3cfc8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.2.update.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+/*
+for $a in [ string-length("abcdefghijklmnopqrstu"),
+string-length("ABCDEFGHIJKLMNOPQRSTU"),
+string-length("abcdEFGHijklMNOPqrstu"),
+string-length("abcd EFGH ijkl MNOP qrstu"),
+string-length("   Hello World    !!!!....:-)"),
+string-length(string-concat(["test string to","concatenate"])),
+string-length("~!@#$%^&*()_+{}:?<>/.,';`][\")]
+return $a
+*/
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.3.query.aql
new file mode 100644
index 0000000..564ca83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen02/strlen02.3.query.aql
@@ -0,0 +1,26 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+/*
+for $a in [ string-length("abcdefghijklmnopqrstu"),
+string-length("ABCDEFGHIJKLMNOPQRSTU"),
+string-length("abcdEFGHijklMNOPqrstu"),
+string-length("abcd EFGH ijkl MNOP qrstu"),
+string-length("   Hello World    !!!!....:-)"),
+string-length(string-concat(["test string to","concatenate"])),
+string-length("~!@#$%^&*()_+{}:?<>/.,';`][\")]
+return $a
+*/
+
+
+for $a in [ string-length("abcdefghijklmnopqrstu"),
+string-length("ABCDEFGHIJKLMNOPQRSTU"),
+string-length("abcdEFGHijklMNOPqrstu"),
+string-length("abcd EFGH ijkl MNOP qrstu"),
+string-length("   Hello World    !!!!....:-)"),
+string-length("~!@#$%^&*()_+{}:?<>/.,';`][\")]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.1.ddl.aql
new file mode 100644
index 0000000..f2a0456
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Expected Res   : Success
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to string-length function, and verify results.
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as {
+name:string
+}
+
+create dataset testds(TestType) primary key name;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.2.update.aql
new file mode 100644
index 0000000..05bd430
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.2.update.aql
@@ -0,0 +1,24 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Expected Res   : Success
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to string-length function, and verify results.
+
+use dataverse test;
+
+insert into dataset testds({"name":"Maradona"});
+insert into dataset testds({"name":"Pele"});
+insert into dataset testds({"name":"Roberto Baggio"});
+insert into dataset testds({"name":"Beckham David"});
+insert into dataset testds({"name":"Rooney"});
+insert into dataset testds({"name":"Ronaldinho"});
+insert into dataset testds({"name":"Ronaldo"});
+insert into dataset testds({"name":"Zinadine Zidane"});
+insert into dataset testds({"name":"Cristiano Ronaldo"});
+insert into dataset testds({"name":"Messi"});
+insert into dataset testds({"name":"Tevez"});
+insert into dataset testds({"name":"Henry"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.3.query.aql
new file mode 100644
index 0000000..9bcd2a4b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strlen03/strlen03.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description    : Test string-length(string) function 
+ * Expected Res   : Success
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to string-length function, and verify results.
+
+use dataverse test;
+
+for $l in dataset('testds')
+order by $l.name
+return string-length($l.name)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.1.ddl.aql
new file mode 100644
index 0000000..717f902c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with valid inputs
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.2.update.aql
new file mode 100644
index 0000000..717f902c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with valid inputs
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.3.query.aql
new file mode 100644
index 0000000..ddb626e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt01/strtocpt01.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Test string to codepoint function with valid inputs
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
+
+let $x := "ABCDEFGHIJKLMNOPQRSTUVWXYZ-01234567890"
+return string-to-codepoint($x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.1.ddl.aql
new file mode 100644
index 0000000..46872af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.2.update.aql
new file mode 100644
index 0000000..46872af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.3.query.aql
new file mode 100644
index 0000000..8ce8ac8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt02/strtocpt02.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
+let $x := "\"'-=_+|\,./<>?:;~`"
+return string-to-codepoint($x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.1.ddl.aql
new file mode 100644
index 0000000..46872af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.1.ddl.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.2.update.aql
new file mode 100644
index 0000000..46872af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.3.query.aql
new file mode 100644
index 0000000..d91f7ef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/strtocpt03/strtocpt03.3.query.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Test string to codepoint function with special characters 
+ * Expected Res : Success
+ * Date         : 7th Aug 2012
+ */
+
+let $x := "!@#$%^&*()"
+return string-to-codepoint($x)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.1.ddl.aql
new file mode 100644
index 0000000..a3ec9be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  : substr01.aql
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.2.update.aql
new file mode 100644
index 0000000..a3ec9be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Testcase Name  : substr01.aql
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.3.query.aql
new file mode 100644
index 0000000..e7b638c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr01/substr01.3.query.aql
@@ -0,0 +1,28 @@
+/*
+ * Testcase Name  : substr01.aql
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
+let $str1:="Hello World"
+let $str2:=substring($str1,10)
+
+let $str3:="This is a test string"
+let $str4:=substring($str3,21)
+
+let $str5:="This is a test string"
+let $str6:=substring($str5,22)
+
+let $str7:="This is a test string"
+let $str8:=substring($str7,0)
+
+let $str9:="This is a test string"
+let $str10:=substring($str9,-1)
+
+let $str11:="This is a test string"
+let $str12:="This is a another test string"
+let $str13:=substring(string-concat([$str11,$str12]),21)
+
+let $str14:=substring("UC Irvine",string-length("UC Irvine")/2)
+return { "str2":$str2,"str4":$str4,"str6":$str6,"str8":$str8,"str10":$str10,"str13":$str13,"str14":$str14}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.1.ddl.aql
new file mode 100644
index 0000000..280e52c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Testcase Name  : substr04.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.2.update.aql
new file mode 100644
index 0000000..280e52c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Testcase Name  : substr04.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.3.query.aql
new file mode 100644
index 0000000..0f5b1ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr04/substr04.3.query.aql
@@ -0,0 +1,19 @@
+/*
+ * Testcase Name  : substr04.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 18th April 2012
+ */
+
+for $a in [ substring2("hello world",7,11),
+substring("hello world",1,11),
+substring("hello world",3,7),
+substring("ABCD",3,6),
+substring("ABCD",0,4),
+substring("UC Irvine",4,string-length("UC Irvine")),
+substring("UC Irvine",0,string-length("UC Irvine")),
+substring("UC Irvine",1,string-length("UC Irvine")),
+substring(substring("UC Irvine",4),0,string-length("Irvine")),
+substring(substring("UC Irvine",4),0,(string-length("Irvine")/2))
+]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.1.ddl.aql
new file mode 100644
index 0000000..cd3bee1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Testcase Name  : substr05.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring2 function with string data stored in an internal dataset.
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+name : string
+}
+
+create dataset testdst(TestType) primary key name;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.2.update.aql
new file mode 100644
index 0000000..da796c7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.2.update.aql
@@ -0,0 +1,20 @@
+/*
+ * Testcase Name  : substr05.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring2 function with string data stored in an internal dataset.
+
+use dataverse test;
+
+insert into dataset testdst({"name":"UC Berkeley"});
+insert into dataset testdst({"name":"UC Irvine"});
+insert into dataset testdst({"name":"UC LA"});
+insert into dataset testdst({"name":"UC Riverside"});
+insert into dataset testdst({"name":"UC San Diego"});
+insert into dataset testdst({"name":"UC Santa Barbara"});
+insert into dataset testdst({"name":"UT Austin "});
+insert into dataset testdst({"name":"UT Dallas"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.3.query.aql
new file mode 100644
index 0000000..1b2cfe5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr05/substr05.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Testcase Name  : substr05.aql
+ * Description    : Test substring2(string,position,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring2 function with string data stored in an internal dataset.
+
+use dataverse test;
+
+for $a in dataset('testdst')
+order by $a.name
+return substring($a.name,4,string-length($a.name));
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.1.ddl.aql
new file mode 100644
index 0000000..404e531
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring function with string data stored in an internal dataset.
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as open {
+name : string
+}
+
+create dataset testdst(TestType) primary key name;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.2.update.aql
new file mode 100644
index 0000000..150cd94
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.2.update.aql
@@ -0,0 +1,19 @@
+/*
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring function with string data stored in an internal dataset.
+
+use dataverse test;
+
+insert into dataset testdst({"name":"UC Berkeley"});
+insert into dataset testdst({"name":"UC Irvine"});
+insert into dataset testdst({"name":"UC LA"});
+insert into dataset testdst({"name":"UC Riverside"});
+insert into dataset testdst({"name":"UC San Diego"});
+insert into dataset testdst({"name":"UC Santa Barbara"});
+insert into dataset testdst({"name":"UT Austin "});
+insert into dataset testdst({"name":"UT Dallas"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.3.query.aql
new file mode 100644
index 0000000..b6be396
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substr06/substr06.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description    : Test substring2(string,position) built in function.
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+// To test substring function with string data stored in an internal dataset.
+
+use dataverse test;
+
+for $a in dataset('testdst')
+order by $a.name
+return substring($a.name,4);
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.3.query.aql
new file mode 100644
index 0000000..ae3a597
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-1/substring-after-1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring-after("HEllow","El")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.3.query.aql
new file mode 100644
index 0000000..ef7dd50
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-2/substring-after-2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring-after("HEllow","1")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.3.query.aql
new file mode 100644
index 0000000..724d607
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-3/substring-after-3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring-after("HEllow","HEllow")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.3.query.aql
new file mode 100644
index 0000000..3bde8d0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-after-4/substring-after-4.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+let $c1 := substring-after("HEllow","")
+let $c2 := substring-after("HEllow",null)
+let $c3 := substring-after("",null)
+let $c4 := substring-after("","")
+let $c5 := substring-after(null,null)
+return {"result1": $c1, "result2": $c2, "result3": $c3, "result4": $c4, "result5": $c5}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.3.query.aql
new file mode 100644
index 0000000..6f57132
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-1/substring-before-1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring-before("HEllow","ll")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.3.query.aql
new file mode 100644
index 0000000..7879268
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-2/substring-before-2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring-before("HEllow","HEllow")
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.3.query.aql
new file mode 100644
index 0000000..c0e22d4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring-before-3/substring-before-3.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+let $c1 := substring-before("HEllow","")
+let $c2 := substring-before("HEllow",null)
+let $c3 := substring-before("",null)
+let $c4 := substring-before("","")
+let $c5 := substring-before(null,null)
+return {"result1": $c1, "result2": $c2, "result3": $c3, "result4": $c4, "result5": $c5}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.3.query.aql
new file mode 100644
index 0000000..6e32225
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-1/substring2-1.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring("HEllow",2)
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.3.query.aql
new file mode 100644
index 0000000..854eac6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-2/substring2-2.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring("HEllow",0)
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.3.query.aql
new file mode 100644
index 0000000..f8a53f4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-3/substring2-3.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring("HEllow",10)
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.3.query.aql
new file mode 100644
index 0000000..192698c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring2-4/substring2-4.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+let $c1 := substring("HEllow",-1)
+return {"result1": $c1}
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring_01.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring_01.aql
deleted file mode 100644
index 3d2e51f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/string/substring_01.aql
+++ /dev/null
@@ -1,8 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/string_substring_01.adm";
-
-for $x in ["foobar"]
-return substring($x, 2, 3)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.3.query.aql
new file mode 100644
index 0000000..29efa54
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/substring_01/substring_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x in ["foobar"]
+return substring($x, 2, 3)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.1.ddl.aql
new file mode 100644
index 0000000..1c613f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Testcase Name : toLowerCas02.aql
+ * Description   : Test lowercase(string) function
+ *               : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.2.update.aql
new file mode 100644
index 0000000..1c613f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Testcase Name : toLowerCas02.aql
+ * Description   : Test lowercase(string) function
+ *               : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.3.query.aql
new file mode 100644
index 0000000..24ccdcc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase02/toLowerCase02.3.query.aql
@@ -0,0 +1,22 @@
+/*
+ * Testcase Name : toLowerCas02.aql
+ * Description   : Test lowercase(string) function
+ *               : Positive tests
+ * Success       : Yes
+ * Date          : 19th April 2012
+ */
+
+
+for $a in [lowercase("a   b  c  d  e  f  g"),
+    lowercase("A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"),
+    lowercase("abcdefghij KLMNOP qrstu VWXYZ"),
+    lowercase("abcdefghijklmnopqrstuvwxyz"),
+    lowercase("this is a test string"),
+    lowercase("smaller string"),
+    lowercase("ABCD"),
+    lowercase("AbCdEfGhIjKlMnOpQrStUvWxYz"),
+    lowercase("abcdefghijkABCDEFGHIJK"),
+    lowercase("HIJKLMNOPQRhijklmnopqr"),
+    lowercase(substring("ABCDEFghIJKLMnopQRSTuvwxYZ01234",0)),
+    lowercase("A33B2CD1EF78GHijk123LMNopqrstUVW3x2y01035Z")]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.1.ddl.aql
new file mode 100644
index 0000000..8791da7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Test case Name : toLowerCas03.aql
+ * Description    : Test lowercase(string) function 
+ *                : This test case covers Positive tests
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to lowercase function, and verify results.
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type TestType as {
+name:string
+}
+
+create dataset testds(TestType) primary key name;
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.2.update.aql
new file mode 100644
index 0000000..dbb0e70
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.2.update.aql
@@ -0,0 +1,26 @@
+/*
+ * Test case Name : toLowerCas03.aql
+ * Description    : Test lowercase(string) function 
+ *                : This test case covers Positive tests
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to lowercase function, and verify results.
+
+use dataverse test;
+
+insert into dataset testds({"name":"Maradona"});
+insert into dataset testds({"name":"Pele"});
+insert into dataset testds({"name":"Roberto Baggio"});
+insert into dataset testds({"name":"Beckham David"});
+insert into dataset testds({"name":"Rooney"});
+insert into dataset testds({"name":"Ronaldinho"});
+insert into dataset testds({"name":"Ronaldo"});
+insert into dataset testds({"name":"Zinadine Zidane"});
+insert into dataset testds({"name":"Cristiano Ronaldo"});
+insert into dataset testds({"name":"Messi"});
+insert into dataset testds({"name":"Tevez"});
+insert into dataset testds({"name":"Henry"});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.3.query.aql
new file mode 100644
index 0000000..94743a7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase03/toLowerCase03.3.query.aql
@@ -0,0 +1,16 @@
+/*
+ * Test case Name : toLowerCas03.aql
+ * Description    : Test lowercase(string) function 
+ *                : This test case covers Positive tests
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+
+// Create internal dataset, insert string data and pass the string attribute to lowercase function, and verify results.
+
+use dataverse test;
+
+for $l in dataset('testds')
+order by $l.name
+return lowercase($l.name)
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.1.ddl.aql
new file mode 100644
index 0000000..48d52db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Test case Name : toLowerCas04.aql
+ * Description    : Test lowercase(string) function 
+ *                : Convert all upper case english alphabets A-Z to lower case a-z
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.2.update.aql
new file mode 100644
index 0000000..48d52db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Test case Name : toLowerCas04.aql
+ * Description    : Test lowercase(string) function 
+ *                : Convert all upper case english alphabets A-Z to lower case a-z
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.3.query.aql
new file mode 100644
index 0000000..3b4ec60
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04/toLowerCase04.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Test case Name : toLowerCas04.aql
+ * Description    : Test lowercase(string) function 
+ *                : Convert all upper case english alphabets A-Z to lower case a-z
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+for $a in[lowercase(codepoint-to-string([0065,0066,0067,0068,0069,0070,0071,0072,0073,0074,0075,0076,0077,0078,0079,0080,0081,0082,0083,0084,0085,0086,0087,0088,0089,0090])),lowercase(string-concat(["ABCDEFGHIJKLMNOP","QRSTUVWXYZ"]))]
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/01.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01.aql
deleted file mode 100644
index a6083b1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/01.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_01.adm";
-
-for $l in subset-collection([1], 0, 1)
-return $l
-/*
-output: 
-1
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.3.query.aql
new file mode 100644
index 0000000..05612a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/01/01.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $l in subset-collection([1], 0, 1)
+return $l
+/*
+output: 
+1
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/02.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02.aql
deleted file mode 100644
index 8069ee5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/02.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_02.adm";
-
-for $l in subset-collection([1, 2, 3, 4], 1, 2)
-return $l
-/*
-output: 
-2
-3
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.3.query.aql
new file mode 100644
index 0000000..14b3e4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/02/02.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+for $l in subset-collection([1, 2, 3, 4], 1, 2)
+return $l
+/*
+output: 
+2
+3
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/03.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03.aql
deleted file mode 100644
index 17b54d0..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/03.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_03.adm";
-
-for $l in subset-collection([1, 2, 3, 4], 0, 0)
-return $l
-/*
-output: 
-EMPTY
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.3.query.aql
new file mode 100644
index 0000000..248bff3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/03/03.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $l in subset-collection([1, 2, 3, 4], 0, 0)
+return $l
+/*
+output: 
+EMPTY
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/04.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04.aql
deleted file mode 100644
index 97babb9..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/04.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_04.adm";
-
-for $l in [1]
-return subset-collection([1, 2, 3, 4], 1, 2)
-/*
-edu.uci.ics.asterix.common.exceptions.AsterixException: Trying to create an aggregate from a scalar function descriptor. (fid=subset-collection@3)
-        at edu.uci.ics.asterix.algebra.expressions.FunctionCallExpression.createEvaluatorFactory(FunctionCallExpression.java:85)
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.3.query.aql
new file mode 100644
index 0000000..0fde28a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/04/04.3.query.aql
@@ -0,0 +1,8 @@
+use dataverse test;
+
+for $l in [1]
+return subset-collection([1, 2, 3, 4], 1, 2)
+/*
+edu.uci.ics.asterix.common.exceptions.AsterixException: Trying to create an aggregate from a scalar function descriptor. (fid=subset-collection@3)
+        at edu.uci.ics.asterix.algebra.expressions.FunctionCallExpression.createEvaluatorFactory(FunctionCallExpression.java:85)
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/05.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05.aql
deleted file mode 100644
index 8be1211..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/05.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_05.adm";
-
-for $l in subset-collection(['a', 'b', 'c', 'd'], 1, 2)
-return $l
-/*
-output:
-"b"
-"c"
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.3.query.aql
new file mode 100644
index 0000000..2403754
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/05/05.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+for $l in subset-collection(['a', 'b', 'c', 'd'], 1, 2)
+return $l
+/*
+output:
+"b"
+"c"
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/06.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06.aql
deleted file mode 100644
index 1569d5a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/06.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_06.adm";
-
-for $l in subset-collection([1, 2, 3, 4], 2, 2)
-return $l
-/*
-output:
-3
-4
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.3.query.aql
new file mode 100644
index 0000000..c8e78af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/06/06.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+for $l in subset-collection([1, 2, 3, 4], 2, 2)
+return $l
+/*
+output:
+3
+4
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/07.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07.aql
deleted file mode 100644
index 49a9d6a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/subset-collection/07.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/subset-collection_07.adm";
-
-for $l in subset-collection([1, 2, 3, 4], 2, 10)
-return $l
-/*
-output:
-3
-4
-*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.3.query.aql
new file mode 100644
index 0000000..5166adf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/subset-collection/07/07.3.query.aql
@@ -0,0 +1,9 @@
+use dataverse test;
+
+for $l in subset-collection([1, 2, 3, 4], 2, 10)
+return $l
+/*
+output:
+3
+4
+*/
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.1.ddl.aql
new file mode 100644
index 0000000..e6a3879
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.1.ddl.aql
@@ -0,0 +1,2 @@
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.3.query.aql
new file mode 100644
index 0000000..2586d2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/accessors/accessors.3.query.aql
@@ -0,0 +1,12 @@
+use dataverse test;
+
+let $c1 := date("2010-10-30")
+let $c2 := datetime("1987-11-19T23:49:23.938")
+let $c3 := date("-1987-11-19")
+let $c4 := date("09280329")
+let $c5 := datetime("19371229T20030628")
+let $c6 := time("12:23:34.930+07:00")
+let $c7 := string("-0003-01-09T23:12:12.39-07:00")
+let $c8 := duration("P3Y73M632DT49H743M3948.94S")
+
+return {"year1": year($c1), "year2": year($c2), "year3": year($c3), "year4": year($c4), "year5": year($c5), "year6": year($c7), "year7": year($c8), "month1": month($c1), "month2": month($c2), "month3": month($c3), "month4": month($c4), "month5": month($c5), "month6": month($c8), "day1": day($c1), "day2": day($c2), "day3": day($c3), "day4": day($c4), "day5": day($c5), "day6": day($c8), "hour1": hour($c2), "hour2": hour($c5), "hour3": hour($c6), "hour4": hour($c8), "min1": minute($c2), "min2": minute($c5), "min3": minute($c6), "min4": minute($c8), "second1": second($c2), "second2": second($c5), "second3": second($c6), "second4": second($c8), "ms1": millisecond($c2), "ms2": millisecond($c5), "ms3": millisecond($c6), "ms4": millisecond($c8)}
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.1.ddl.aql
new file mode 100644
index 0000000..5224165
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Check the adjust-timezone functions
+ * Expected Result  :   Success
+ * Date             :   15th Oct, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.3.query.aql
new file mode 100644
index 0000000..a3959b0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/adjust_timezone/adjust_timezone.3.query.aql
@@ -0,0 +1,7 @@
+use dataverse test;
+
+let $t1 := time("20:15:10.327")
+let $dt1 := datetime("2010-10-23T01:12:13.329Z")
+let $s1 := adjust-time-for-timezone($t1, "+0800")
+let $s2 := adjust-datetime-for-timezone($dt1, "-0615")
+return { "string1" : $s1, "string2" : $s2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.1.ddl.aql
new file mode 100644
index 0000000..7a26995
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Check the calendar-duration functions
+ * Expected Result  :   Success
+ * Date             :   15th Oct, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.3.query.aql
new file mode 100644
index 0000000..cbf4b7f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/calendar_duration/calendar_duration.3.query.aql
@@ -0,0 +1,42 @@
+use dataverse test;
+
+let $t1 := datetime("1987-11-19T23:49:23.938")
+let $t2 := date("-1328-10-23")
+let $dr1 := duration("P7382DT39283M3921.329S")
+let $dr2 := duration("-PT63H398212M3219.328S")
+let $dr3 := duration("P1Y90M")
+let $dr4 := duration("-P3Y89M4089DT47382.983S")
+let $cdr1 := calendar-duration-from-datetime($t1, $dr1)
+let $dt1 := add-datetime-duration($t1, $dr1)
+let $dtt1 := add-datetime-duration($t1, $cdr1)
+let $c1 := $dt1 = $dtt1
+let $cdr2 := calendar-duration-from-datetime($t1, $dr2)
+let $dt2 := add-datetime-duration($t1, $dr2)
+let $dtt2 := add-datetime-duration($t1, $cdr2)
+let $c2 := $dt2 = $dtt2
+let $cdr3 := calendar-duration-from-datetime($t1, $dr3)
+let $dt3 := add-datetime-duration($t1, $dr3)
+let $dtt3 := add-datetime-duration($t1, $cdr3)
+let $c3 := $dt3 = $dtt3
+let $cdr4 := calendar-duration-from-datetime($t1, $dr4)
+let $dt4 := add-datetime-duration($t1, $dr4)
+let $dtt4 := add-datetime-duration($t1, $cdr4)
+let $c4 := $dt4 = $dtt4
+let $cdr5 := calendar-duration-from-date($t2, $dr1)
+let $dt5 := add-date-duration($t2, $dr1)
+let $dtt5 := add-date-duration($t2, $cdr5)
+let $c5 := $dt5 = $dtt5
+let $cdr6 := calendar-duration-from-date($t2, $dr2)
+let $dt6 := add-date-duration($t2, $dr2)
+let $dtt6 := add-date-duration($t2, $cdr6)
+let $c6 := $dt6 = $dtt6
+let $cdr7 := calendar-duration-from-date($t2, $dr3)
+let $dt7 := add-date-duration($t2, $dr3)
+let $dtt7 := add-date-duration($t2, $cdr7)
+let $c7 := $dt7 = $dtt7
+let $cdr8 := calendar-duration-from-date($t2, $dr4)
+let $dt8 := add-date-duration($t2, $dr4)
+let $dtt8 := add-date-duration($t2, $cdr8)
+let $c8 := $dt8 = $dtt8
+
+return { "cduration1":$cdr1, "c1":$c1, "cduration2":$cdr2, "c2":$c2, "cduration3":$cdr3, "c3":$c3, "cduration4":$cdr4, "c4":$c4, "cduration5":$cdr5, "c5":$c5, "cduration6":$cdr6, "c6":$c6, "cduration7":$cdr7, "c7":$c7, "cduration8":$cdr8, "c8":$c8 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.1.ddl.aql
new file mode 100644
index 0000000..5f91b57
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description      :   Check temporal functions for date type
+ * Expected Result  :   Success
+ * Date             :   24th Sep, 2012
+ */
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.3.query.aql
new file mode 100644
index 0000000..93e1366
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/date_functions/date_functions.3.query.aql
@@ -0,0 +1,17 @@
+use dataverse test;
+
+let $d1 := date-from-unix-time-in-days(15600)
+let $dt1 := datetime("1327-12-02T23:35:49.938Z")
+let $d2 := date-from-datetime($dt1)
+let $dt2 := datetime("2012-10-11T02:30:23+03:00")
+let $d3 := date-from-datetime($dt2)
+let $dr1 := duration("-P2Y1M90DT30H")
+let $d4 := add-date-duration($d1, $dr1)
+let $c1 := $d1 = add-date-duration($d4, subtract-date($d1, $d4))
+let $dr2 := duration("P300Y900MT360000M")
+let $d5 := add-date-duration($d2, $dr2)
+let $c2 := $d2 = add-date-duration($d5, subtract-date($d2, $d5))
+let $dr3 := subtract-date($d5, $d2)
+let $dr4 := subtract-date($d4, $d1)
+
+return { "date1" : $d1, "date2" : $d2, "date3" : $d3, "date4" : $d4, "date5" : $d5, "duration1" : $dr3, "duration2" : $dr4, "c1" : $c1, "c2" : $c2  }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.1.ddl.aql
new file mode 100644
index 0000000..dd6d579
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Check temporal functions for datetime
+ * Expected Result  :   Success
+ * Date             :   24th Sep, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.3.query.aql
new file mode 100644
index 0000000..6f3dde3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/datetime_functions/datetime_functions.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse test;
+
+let $dt1 := datetime-from-unix-time-in-ms(956007429)
+let $d1 := date("1327-12-02")
+let $t1 := time("15:35:49.938-0800")
+let $dt2 := datetime-from-date-time($d1, $t1)
+let $dr1 := subtract-datetime($dt2, $dt1)
+let $dt3 := add-datetime-duration($dt1, $dr1)
+let $c1 := $dt1 = add-datetime-duration($dt3, subtract-datetime($dt1, $dt3))
+
+return { "datetime1" : $dt1, "datetime2" : $dt2, "datetime3" : $dt3, "duration1" : $dr1, "c1" : $c1 }
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.ddl.aql
new file mode 100644
index 0000000..1c36625
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Test case name: date-insert.aql
+ * Description: verify insertion operation for date type
+ * Expected result: success
+ */
+ 
+drop dataverse testdvt if exists;
+create dataverse testdvt;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.2.update.aql
new file mode 100644
index 0000000..547e780
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse testdvt;
+
+create external dataset testds(testtype)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/temporal/temporalData.txt"),("format"="delimited-text"),("delimiter"="|"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.3.query.aql
new file mode 100644
index 0000000..46eaa57
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_delimited_ds/insert_from_delimited_ds.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse testdvt;
+
+for $r in dataset("testds") 
+return {"date": $r.dateField, "time": $r.timeField, "datetime": $r.datetimeField, "duration": $r.durationField }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.1.ddl.aql
new file mode 100644
index 0000000..0338aef
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.1.ddl.aql
@@ -0,0 +1,22 @@
+/*
+ * Test case name: date-insert.aql
+ * Description: verify insertion operation for date type
+ * Expected result: success
+ */
+ 
+drop dataverse testdvt if exists;
+create dataverse testdvt;
+use dataverse testdvt;
+
+create type testtype as open {
+  id: string,
+  dateField: date?,
+  timeField: time?,
+  datetimeField: datetime?,
+  durationField: duration?,
+  intervalField: interval?
+}
+
+create external dataset testds(testtype)
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/temporal/temporalData.json"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.3.query.aql
new file mode 100644
index 0000000..2defafc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/insert_from_ext_ds/insert_from_ext_ds.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse testdvt;
+
+for $r in dataset("testds") 
+return {"date": $r.dateField, "time": $r.timeField, "datetime": $r.datetimeField, "duration": $r.durationField, "interval": $r.intervalField }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.1.ddl.aql
new file mode 100644
index 0000000..4c240c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Check temporal functions for interval
+ * Expected Result  :   Success
+ * Date             :   2nd Nov, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.3.query.aql
new file mode 100644
index 0000000..1c773bc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/interval_functions/interval_functions.3.query.aql
@@ -0,0 +1,49 @@
+use dataverse test;
+
+let $itv1 := interval-from-date("2010-10-30", "2010-12-21")
+let $itv2 := interval-from-date("2011-10-30", "2012-10-21")
+let $itv3 := interval-from-date("2010-12-21", "2013-01-01")
+let $blnBefore1 := interval-before($itv1, $itv2)
+let $blnAfter1 := interval-after($itv2, $itv1)
+let $blnBefore2 := interval-before($itv1, $itv3)
+let $blnAfter2 := interval-after($itv3, $itv1)
+
+let $itv4 := interval-from-datetime("2012-06-26T01:01:01.111", "2012-07-27T02:02:02.222")
+let $itv5 := interval-from-datetime("20120727T020202222", "2013-08-08T03:03:03.333")
+let $itv6 := interval-from-datetime("19000707T020202222", "2013-08-07T03:03:03.333")
+let $blnMeet1 := interval-meets($itv4, $itv5)
+let $blnMetBy1 := interval-met-by($itv5, $itv4)
+let $blnMeet2 := interval-meets($itv6, $itv4)
+let $blnMetBy2 := interval-met-by($itv6, $itv4)
+
+let $itv7 := interval-from-time("12:32:38", "20:29:20")
+let $itv8 := interval-from-time("17:48:19", "22:19:49")
+let $itv9 := interval-from-time("01:32:49", "17:48:19")
+let $blnOverlaps1 := interval-overlaps($itv7, $itv8)
+let $blnOverlapped1 := interval-overlapped-by($itv8, $itv7)
+let $blnOverlaps2 := interval-overlaps($itv9, $itv8)
+let $blnOverlapped2 := interval-overlapped-by($itv8, $itv9)
+let $blnOverlap1 := overlap($itv9, $itv7)
+let $blnOverlap2 := overlap($itv9, $itv8)
+
+let $itv10 := interval-from-date("2010-10-30", "2010-11-30")
+let $blnStarts1 := interval-starts($itv10, $itv1)
+let $blnStarts2 := interval-starts($itv10, $itv2)
+let $blnStartedBy1 := interval-started-by($itv1, $itv10)
+let $blnStartedBy2 := interval-started-by($itv10, $itv2)
+
+let $itv10 := interval-from-datetime("19000707T020202222", "2013-08-07T03:03:03.333")
+let $itv11 := interval-from-datetime("19990707T020202222", "2013-08-07T03:03:03.333")
+let $itv12 := interval-from-datetime("-19990707T020202222", "2013-08-07T03:03:03.333")
+let $blnCovers1 := interval-covers($itv10, $itv11)
+let $blnCovers2 := interval-covers($itv10, $itv12)
+let $blnCoveredBy1 := interval-covered-by($itv11, $itv10)
+let $blnCoveredBy2 := interval-covered-by($itv12, $itv10)
+
+let $itv11 := interval-from-time("19:00:00.009", "20:29:20.000")
+let $blnEnds1 := interval-ends($itv11, $itv7)
+let $blnEnds2 := interval-ends($itv11, $itv8)
+let $blnEndedBy1 := interval-ended-by($itv7, $itv11)
+let $blnEndedBy2 := interval-ended-by($itv8, $itv11)
+
+return { "before1" : $blnBefore1, "before2" : $blnBefore2, "after1" : $blnAfter1, "after2" : $blnAfter2, "meet1" : $blnMeet1, "meet2" : $blnMeet2, "metby1" : $blnMetBy1, "metby2" : $blnMetBy2, "overlaps1" : $blnOverlaps1, "overlaps2" : $blnOverlaps2, "overlapped1" : $blnOverlapped1, "overlapped2" : $blnOverlapped2, "overlap1" : $blnOverlap1, "overlap2" : $blnOverlap2, "starts1" : $blnStarts1, "starts2" : $blnStarts2, "startedby1" : $blnStartedBy1, "startedby2" : $blnStartedBy2, "covers1" : $blnCovers1, "covers2" : $blnCovers2, "coveredby1" : $blnCoveredBy1, "coveredby2" : $blnCoveredBy2, "ends1" : $blnEnds1, "ends2" : $blnEnds2, "endedby1" : $blnEndedBy1, "endedby2" : $blnEndedBy2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.1.ddl.aql
new file mode 100644
index 0000000..36c26ae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.1.ddl.aql
@@ -0,0 +1,8 @@
+/*
+ * Description      :   Check temporal functions for time
+ * Expected Result  :   Success
+ * Date             :   24th Sep, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.3.query.aql
new file mode 100644
index 0000000..ca25b8b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/temporal/time_functions/time_functions.3.query.aql
@@ -0,0 +1,20 @@
+use dataverse test;
+
+let $t1 := time-from-unix-time-in-ms(1560074)
+let $dt1 := datetime("1327-12-02T23:35:49.938Z")
+let $t2 := time-from-datetime($dt1)
+let $dt2 := datetime("2012-10-11T02:30:23+03:00")
+let $t3 := time-from-datetime($dt2)
+let $dr1 := duration("-PT30H")
+let $t4 := add-time-duration($t1, $dr1)
+let $c1 := $t1 = add-time-duration($t4, subtract-time($t1, $t4))
+let $dr2 := duration("PT36M")
+let $t5 := add-time-duration($t2, $dr2)
+let $c2 := $t2 = add-time-duration($t5, subtract-time($t2, $t5))
+let $dr3 := subtract-time($t5, $t2)
+let $dr4 := subtract-time($t4, $t1)
+let $ct := current-time()
+let $cd := current-date()
+let $cdt := current-datetime()
+
+return { "time1" : $t1, "time2" : $t2, "time3" : $t3, "time4" : $t4, "time5" : $t5, "duration1" : $dr3, "duration2" : $dr4, "c1" : $c1, "c2" : $c2  }
diff --git a/asterix-app/src/test/resources/runtimets/queries/tid_01.aql b/asterix-app/src/test/resources/runtimets/queries/tid_01.aql
deleted file mode 100644
index 3cd8396..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tid_01.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-
-write output to nc1:"rttest/tid_01.adm";
-
-for $x at $i in ["a","b","c"]
-return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01.aql
deleted file mode 100644
index d360853..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_counthashed-gram-tokens_01.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := counthashed-gram-tokens($txt, 3, false)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.3.query.aql
new file mode 100644
index 0000000..7b2148c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := counthashed-gram-tokens($txt, 3, false)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02.aql
deleted file mode 100644
index cb5240d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_counthashed-gram-tokens_02.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := counthashed-gram-tokens($txt, 3, true)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.3.query.aql
new file mode 100644
index 0000000..f871047
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := counthashed-gram-tokens($txt, 3, true)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01.aql
deleted file mode 100644
index 99c7b1d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_counthashed-word-tokens_01.adm";
-
-let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
-let $tokens := counthashed-word-tokens($txt)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.3.query.aql
new file mode 100644
index 0000000..3d44cfb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
+let $tokens := counthashed-word-tokens($txt)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01.aql
deleted file mode 100644
index 6be0066..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_gram-tokens_01.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := gram-tokens($txt, 3, false)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.3.query.aql
new file mode 100644
index 0000000..ae3a339
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_01/gram-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := gram-tokens($txt, 3, false)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02.aql
deleted file mode 100644
index adc34a6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_gram-tokens_02.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := gram-tokens($txt, 3, true)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.3.query.aql
new file mode 100644
index 0000000..1fa90ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/gram-tokens_02/gram-tokens_02.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := gram-tokens($txt, 3, true)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01.aql
deleted file mode 100644
index 73a1a77..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_hashed-gram-tokens_01.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := hashed-gram-tokens($txt, 3, false)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.3.query.aql
new file mode 100644
index 0000000..694ef83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := hashed-gram-tokens($txt, 3, false)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02.aql
deleted file mode 100644
index 854398f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_hashed-gram-tokens_02.adm";
-
-let $txt := "Jürgen S. Generic's Car"
-let $tokens := hashed-gram-tokens($txt, 3, true)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.3.query.aql
new file mode 100644
index 0000000..8e46d4a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Jürgen S. Generic's Car"
+let $tokens := hashed-gram-tokens($txt, 3, true)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01.aql
deleted file mode 100644
index c4d2490..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_hashed-word-tokens_01.adm";
-
-let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
-let $tokens := hashed-word-tokens($txt)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.3.query.aql
new file mode 100644
index 0000000..62d8387
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
+let $tokens := hashed-word-tokens($txt)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01.aql
deleted file mode 100644
index c6bb819..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_word-tokens_01.adm";
-
-let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
-let $tokens := word-tokens($txt)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.3.query.aql
new file mode 100644
index 0000000..dc9fa07
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_01/word-tokens_01.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "Hello World, I would like to inform you of the importance of Foo Bar. Yes, Foo Bar. Jürgen."
+let $tokens := word-tokens($txt)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02.aql
deleted file mode 100644
index 75b816c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-write output to nc1:"rttest/tokenizers_word-tokens_02.adm";
-
-let $txt := "ΩΣ"
-let $tokens := word-tokens($txt)
-for $token in $tokens
-return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.1.ddl.aql
new file mode 100644
index 0000000..a5de0dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.3.query.aql
new file mode 100644
index 0000000..3e577b2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tokenizers/word-tokens_02/word-tokens_02.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $txt := "ΩΣ"
+let $tokens := word-tokens($txt)
+for $token in $tokens
+return $token
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by.aql
deleted file mode 100644
index 278104b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by.aql
+++ /dev/null
@@ -1,44 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_distinct_by.adm";
- 
-for $l in dataset('LineItem')
-distinct by $l.l_returnflag, $l.l_linestatus, $l.l_shipmode
-order by $l.l_returnflag, $l.l_linestatus, $l.l_shipmode
-return {
-"l_returnflag": $l.l_returnflag,
-"l_linestatus": $l.l_linestatus,
-"l_shipmode": $l.l_shipmode
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.1.ddl.aql
new file mode 100644
index 0000000..acd6728
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.2.update.aql
new file mode 100644
index 0000000..f781e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.3.query.aql
new file mode 100644
index 0000000..2543d7b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/distinct_by/distinct_by.3.query.aql
@@ -0,0 +1,10 @@
+use dataverse tpch;
+
+for $l in dataset('LineItem')
+distinct by $l.l_returnflag, $l.l_linestatus, $l.l_shipmode
+order by $l.l_returnflag, $l.l_linestatus, $l.l_shipmode
+return {
+"l_returnflag": $l.l_returnflag,
+"l_linestatus": $l.l_linestatus,
+"l_shipmode": $l.l_shipmode
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg.aql
deleted file mode 100644
index d0607bf..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg.aql
+++ /dev/null
@@ -1,26 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-
-use dataverse tpch;
-
-create type RegionType as closed {
-  r_regionkey: int32,
-  r_name: string,
-  r_comment: string
-}
-
-create nodegroup group1 if not exists  on nc1;
-
-create dataset Regions_group_no_agg(RegionType) 
-  partitioned by key r_regionkey on group1;
-
-write output to nc1:"rttest/tpch_group_no_agg.adm";
-
-load dataset Regions_group_no_agg 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-for $r in dataset('Regions_group_no_agg')
-group by $name := $r.r_name  with $r
-order by $name
-return $name
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.1.ddl.aql
new file mode 100644
index 0000000..f415b38
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.1.ddl.aql
@@ -0,0 +1,14 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type RegionType as closed {
+  r_regionkey: int32,
+  r_name: string,
+  r_comment: string
+}
+
+create dataset Regions_group_no_agg(RegionType) 
+  primary key r_regionkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.2.update.aql
new file mode 100644
index 0000000..3f37bfa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse tpch;
+
+load dataset Regions_group_no_agg 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.3.query.aql
new file mode 100644
index 0000000..284d168
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/group_no_agg/group_no_agg.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+for $r in dataset('Regions_group_no_agg')
+group by $name := $r.r_name  with $r
+order by $name
+return $name
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item.aql
deleted file mode 100644
index 7dea9bb..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item.aql
+++ /dev/null
@@ -1,198 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q10_returned_item.adm";
-
-
-for $locn in (
-for $l in dataset('LineItem')
-for $ocn in (
-	for $o in dataset('Orders')
-	for $c in dataset('Customer')
-		where $c.c_custkey = $o.o_custkey and $o.o_orderdate >= '1993-10-01' and $o.o_orderdate < '1994-01-01'
-	for $n in dataset('Nation')
-		where $c.c_nationkey = $n.n_nationkey
-	return {
-		"c_custkey": $c.c_custkey, 
-		"c_name": $c.c_name,
-  		"c_acctbal": $c.c_acctbal, 
-  		"n_name": $n.n_name, 
-  		"c_address": $c.c_address, 
-  		"c_phone": $c.c_phone, 
-  		"c_comment": $c.c_comment,
-  		"o_orderkey": $o.o_orderkey
-	}
-)
-where
-   $l.l_orderkey = $ocn.o_orderkey and $l.l_returnflag = 'R'
-   return {
-		"c_custkey": $ocn.c_custkey, 
-		"c_name": $ocn.c_name,
-  		"c_acctbal": $ocn.c_acctbal, 
-  		"n_name": $ocn.n_name, 
-  		"c_address": $ocn.c_address, 
-  		"c_phone": $ocn.c_phone, 
-  		"c_comment": $ocn.c_comment,
-  		"l_extendedprice": $l.l_extendedprice,
-  		"l_discount": $l.l_discount
-	}	
-)
-group by $c_custkey:=$locn.c_custkey, 
-		$c_name:=$locn.c_name, 
-		$c_acctbal:=$locn.c_acctbal, $c_phone:=$locn.c_phone, 
-		$n_name:=$locn.n_name, $c_address:=$locn.c_address, $c_comment:=$locn.c_comment
-		with $locn
-let $revenue := sum(for $i in $locn return $i.l_extendedprice * (1 - $i.l_discount))
-order by $revenue desc
-limit 20
-return {
-		"c_custkey": $c_custkey, 
-		"c_name": $c_name,
-		"revenue": $revenue,
-  		"c_acctbal": $c_acctbal, 
-  		"n_name": $n_name, 
-  		"c_address": $c_address, 
-  		"c_phone": $c_phone, 
-  		"c_comment": $c_comment
-}
-		
-		
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.3.query.aql
new file mode 100644
index 0000000..c867b31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item/q10_returned_item.3.query.aql
@@ -0,0 +1,55 @@
+use dataverse tpch;
+
+for $locn in (
+for $l in dataset('LineItem')
+for $ocn in (
+	for $o in dataset('Orders')
+	for $c in dataset('Customer')
+		where $c.c_custkey = $o.o_custkey and $o.o_orderdate >= '1993-10-01' and $o.o_orderdate < '1994-01-01'
+	for $n in dataset('Nation')
+		where $c.c_nationkey = $n.n_nationkey
+	return {
+		"c_custkey": $c.c_custkey, 
+		"c_name": $c.c_name,
+  		"c_acctbal": $c.c_acctbal, 
+  		"n_name": $n.n_name, 
+  		"c_address": $c.c_address, 
+  		"c_phone": $c.c_phone, 
+  		"c_comment": $c.c_comment,
+  		"o_orderkey": $o.o_orderkey
+	}
+)
+where
+   $l.l_orderkey = $ocn.o_orderkey and $l.l_returnflag = 'R'
+   return {
+		"c_custkey": $ocn.c_custkey, 
+		"c_name": $ocn.c_name,
+  		"c_acctbal": $ocn.c_acctbal, 
+  		"n_name": $ocn.n_name, 
+  		"c_address": $ocn.c_address, 
+  		"c_phone": $ocn.c_phone, 
+  		"c_comment": $ocn.c_comment,
+  		"l_extendedprice": $l.l_extendedprice,
+  		"l_discount": $l.l_discount
+	}	
+)
+group by $c_custkey:=$locn.c_custkey, 
+		$c_name:=$locn.c_name, 
+		$c_acctbal:=$locn.c_acctbal, $c_phone:=$locn.c_phone, 
+		$n_name:=$locn.n_name, $c_address:=$locn.c_address, $c_comment:=$locn.c_comment
+		with $locn
+let $revenue := sum(for $i in $locn return $i.l_extendedprice * (1 - $i.l_discount))
+order by $revenue desc
+limit 20
+return {
+		"c_custkey": $c_custkey, 
+		"c_name": $c_name,
+		"revenue": $revenue,
+  		"c_acctbal": $c_acctbal, 
+  		"n_name": $n_name, 
+  		"c_address": $c_address, 
+  		"c_phone": $c_phone, 
+  		"c_comment": $c_comment
+}
+		
+		
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.1.ddl.aql
new file mode 100644
index 0000000..4b4967f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int64, 
+  l_partkey: int64, 
+  l_suppkey: int64, 
+  l_linenumber: int64, 
+  l_quantity: int64, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int64, 
+  o_custkey: int64, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int64, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int64, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int64, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int64, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int64,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int64,
+  n_name: string,
+  n_regionkey: int64,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int64, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int64, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int64,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int64, 
+  ps_suppkey: int64,
+  ps_availqty: int64,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.3.query.aql
new file mode 100644
index 0000000..c867b31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q10_returned_item_int64/q10_returned_item_int64.3.query.aql
@@ -0,0 +1,55 @@
+use dataverse tpch;
+
+for $locn in (
+for $l in dataset('LineItem')
+for $ocn in (
+	for $o in dataset('Orders')
+	for $c in dataset('Customer')
+		where $c.c_custkey = $o.o_custkey and $o.o_orderdate >= '1993-10-01' and $o.o_orderdate < '1994-01-01'
+	for $n in dataset('Nation')
+		where $c.c_nationkey = $n.n_nationkey
+	return {
+		"c_custkey": $c.c_custkey, 
+		"c_name": $c.c_name,
+  		"c_acctbal": $c.c_acctbal, 
+  		"n_name": $n.n_name, 
+  		"c_address": $c.c_address, 
+  		"c_phone": $c.c_phone, 
+  		"c_comment": $c.c_comment,
+  		"o_orderkey": $o.o_orderkey
+	}
+)
+where
+   $l.l_orderkey = $ocn.o_orderkey and $l.l_returnflag = 'R'
+   return {
+		"c_custkey": $ocn.c_custkey, 
+		"c_name": $ocn.c_name,
+  		"c_acctbal": $ocn.c_acctbal, 
+  		"n_name": $ocn.n_name, 
+  		"c_address": $ocn.c_address, 
+  		"c_phone": $ocn.c_phone, 
+  		"c_comment": $ocn.c_comment,
+  		"l_extendedprice": $l.l_extendedprice,
+  		"l_discount": $l.l_discount
+	}	
+)
+group by $c_custkey:=$locn.c_custkey, 
+		$c_name:=$locn.c_name, 
+		$c_acctbal:=$locn.c_acctbal, $c_phone:=$locn.c_phone, 
+		$n_name:=$locn.n_name, $c_address:=$locn.c_address, $c_comment:=$locn.c_comment
+		with $locn
+let $revenue := sum(for $i in $locn return $i.l_extendedprice * (1 - $i.l_discount))
+order by $revenue desc
+limit 20
+return {
+		"c_custkey": $c_custkey, 
+		"c_name": $c_name,
+		"revenue": $revenue,
+  		"c_acctbal": $c_acctbal, 
+  		"n_name": $n_name, 
+  		"c_address": $c_address, 
+  		"c_phone": $c_phone, 
+  		"c_comment": $c_comment
+}
+		
+		
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock.aql
deleted file mode 100644
index 5545608..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock.aql
+++ /dev/null
@@ -1,173 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q11_important_stock.adm";
-
-let $sum := sum (
-for $ps in dataset('Partsupp')
-for $sn in (
-	for $s in dataset('Supplier')
-	for $n in dataset('Nation')
-		where $s.s_nationkey = $n.n_nationkey
-	return {"s_suppkey": $s.s_suppkey}
-	)
-where $ps.ps_suppkey = $sn.s_suppkey
-return $ps.ps_supplycost * $ps.ps_availqty)
-
-for $t1 in 
-(
-for $ps in dataset('Partsupp')
-for $sn in (
-	for $s in dataset('Supplier')
-	for $n in dataset('Nation')
-		where $s.s_nationkey = $n.n_nationkey
-	return {"s_suppkey": $s.s_suppkey}
-)
-where $ps.ps_suppkey = $sn.s_suppkey
-group by $ps_partkey := $ps.ps_partkey with $ps
-return {"ps_partkey": $ps_partkey, 
-"part_value": sum(for $i in $ps return $i.ps_supplycost * $i.ps_availqty)}
-)
-
-where $t1.part_value > $sum * 0.00001
-order by $t1.part_value desc
-return {"partkey": $t1.ps_partkey, "part_value":$t1.part_value}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.2.update.aql
new file mode 100644
index 0000000..b23ff7f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.2.update.aql
@@ -0,0 +1,33 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.3.query.aql
new file mode 100644
index 0000000..42a86d1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q11_important_stock/q11_important_stock.3.query.aql
@@ -0,0 +1,31 @@
+use dataverse tpch;
+
+let $sum := sum (
+for $ps in dataset('Partsupp')
+for $sn in (
+	for $s in dataset('Supplier')
+	for $n in dataset('Nation')
+		where $s.s_nationkey = $n.n_nationkey
+	return {"s_suppkey": $s.s_suppkey}
+	)
+where $ps.ps_suppkey = $sn.s_suppkey
+return $ps.ps_supplycost * $ps.ps_availqty)
+
+for $t1 in 
+(
+for $ps in dataset('Partsupp')
+for $sn in (
+	for $s in dataset('Supplier')
+	for $n in dataset('Nation')
+		where $s.s_nationkey = $n.n_nationkey
+	return {"s_suppkey": $s.s_suppkey}
+)
+where $ps.ps_suppkey = $sn.s_suppkey
+group by $ps_partkey := $ps.ps_partkey with $ps
+return {"ps_partkey": $ps_partkey, 
+"part_value": sum(for $i in $ps return $i.ps_supplycost * $i.ps_availqty)}
+)
+
+where $t1.part_value > $sum * 0.00001
+order by $t1.part_value desc
+return {"partkey": $t1.ps_partkey, "part_value":$t1.part_value}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping.aql
deleted file mode 100644
index ac87051..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping.aql
+++ /dev/null
@@ -1,170 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q12_shipping.adm";
-
-for $l in dataset('LineItem')
-for $o in dataset('Orders')
-
-where
-$o.o_orderkey = $l.l_orderkey 
-and $l.l_commitdate < $l.l_receiptdate
-and $l.l_shipdate < $l.l_commitdate 
-and $l.l_receiptdate >= '1994-01-01' 
-and $l.l_receiptdate < '1995-01-01'
-and ($l.l_shipmode = 'MAIL' or $l.l_shipmode = 'SHIP')
-
-group by $l_shipmode := $l.l_shipmode with $o
-order by $l_shipmode
-return {
-"l_shipmode": $l_shipmode,
-"high_line_count": sum(for $i in $o 
-        return switch-case( $i.o_orderpriority ='1-URGENT' or $i.o_orderpriority ='2-HIGH',
-		true, 1,
-        false, 0)),
-"low_line_count": sum(for $i in $o 
-		return switch-case( $i.o_orderpriority ='1-URGENT' or $i.o_orderpriority ='2-HIGH',
-		true, 0,
-        false, 1))
-}
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.3.query.aql
new file mode 100644
index 0000000..b6d4ab0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q12_shipping/q12_shipping.3.query.aql
@@ -0,0 +1,28 @@
+use dataverse tpch;
+
+for $l in dataset('LineItem')
+for $o in dataset('Orders')
+
+where
+$o.o_orderkey = $l.l_orderkey 
+and $l.l_commitdate < $l.l_receiptdate
+and $l.l_shipdate < $l.l_commitdate 
+and $l.l_receiptdate >= '1994-01-01' 
+and $l.l_receiptdate < '1995-01-01'
+and ($l.l_shipmode = 'MAIL' or $l.l_shipmode = 'SHIP')
+
+group by $l_shipmode := $l.l_shipmode with $o
+order by $l_shipmode
+return {
+"l_shipmode": $l_shipmode,
+"high_line_count": sum(for $i in $o 
+        return switch-case( $i.o_orderpriority ='1-URGENT' or $i.o_orderpriority ='2-HIGH',
+		true, 1,
+        false, 0)),
+"low_line_count": sum(for $i in $o 
+		return switch-case( $i.o_orderpriority ='1-URGENT' or $i.o_orderpriority ='2-HIGH',
+		true, 0,
+        false, 1))
+}
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution.aql
deleted file mode 100644
index a33a716..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution.aql
+++ /dev/null
@@ -1,168 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q13_customer_distribution.adm";
-
-for $gco in (
-	for $co in
-		(
-			for $c in dataset('Customer')
-			return 
-			{
-				"c_custkey": $c.c_custkey, 
-				 "o_orderkey_count": count(
-						for $o in dataset('Orders')
-   							where  $c.c_custkey = $o.o_custkey and not(like($o.o_comment,'%special%requests%'))
-						return $o.o_orderkey)
-			}
-		)
-	group by $c_custkey := $co.c_custkey with $co
-		return{
-			"c_custkey": $c_custkey, "c_count": sum(for $i in $co return $i.o_orderkey_count)
-		}
-)
-
-group by $c_count := $gco.c_count with $gco
-let $custdist := count($gco)
-order by $custdist desc, $c_count desc
-return {"c_count": $c_count, "custdist": $custdist}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.3.query.aql
new file mode 100644
index 0000000..a75b9c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q13_customer_distribution/q13_customer_distribution.3.query.aql
@@ -0,0 +1,26 @@
+use dataverse tpch;
+
+for $gco in (
+	for $co in
+		(
+			for $c in dataset('Customer')
+			return 
+			{
+				"c_custkey": $c.c_custkey, 
+				 "o_orderkey_count": count(
+						for $o in dataset('Orders')
+   							where  $c.c_custkey = $o.o_custkey and not(like($o.o_comment,'%special%requests%'))
+						return $o.o_orderkey)
+			}
+		)
+	group by $c_custkey := $co.c_custkey with $co
+		return{
+			"c_custkey": $c_custkey, "c_count": sum(for $i in $co return $i.o_orderkey_count)
+		}
+)
+
+group by $c_count := $gco.c_count with $gco
+let $custdist := count($gco)
+order by $custdist desc, $c_count desc
+return {"c_count": $c_count, "custdist": $custdist}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect.aql
deleted file mode 100644
index 9438746..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect.aql
+++ /dev/null
@@ -1,154 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q14_promotion_effect.adm";
-
-for $l in dataset('LineItem')
-for $p in dataset('Part')
-	where $l.l_partkey = $p.p_partkey and $l.l_shipdate >= '1995-09-01' and $l.l_shipdate < '1995-10-01'
-group by $t:=1 with $l, $p
-return 100.00 * sum( for $i in $l
-			   return switch-case(like($i.p_type, 'PROMO%'),
-               true, $i.l_extendedprice*(1-$i.l_discount),
-               false, 0.0)
-  ) / sum( for $i in $l return $i.l_extendedprice * (1 - $i.l_discount))
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.3.query.aql
new file mode 100644
index 0000000..040e4ec
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q14_promotion_effect/q14_promotion_effect.3.query.aql
@@ -0,0 +1,11 @@
+use dataverse tpch;
+
+for $l in dataset('LineItem')
+for $p in dataset('Part')
+	where $l.l_partkey = $p.p_partkey and $l.l_shipdate >= '1995-09-01' and $l.l_shipdate < '1995-10-01'
+group by $t:=1 with $l, $p
+return 100.00 * sum( for $i in $l
+			   return switch-case(like($i.p_type, 'PROMO%'),
+               true, $i.l_extendedprice*(1-$i.l_discount),
+               false, 0.0)
+  ) / sum( for $i in $l return $i.l_extendedprice * (1 - $i.l_discount))
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier.aql
deleted file mode 100644
index 948f466..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier.aql
+++ /dev/null
@@ -1,170 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q15_top_supplier.adm";
-
-declare function revenue(){
-for $l in dataset('LineItem')
-where $l.l_shipdate >= '1996-01-01' and $l.l_shipdate < '1996-04-01'
-group by $l_suppkey := $l.l_suppkey with $l
-return {
-"supplier_no": $l_suppkey, 
-"total_revenue": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount))
-}
-}
-
-let $m := max(
-	for $r2 in revenue()
-	return $r2.total_revenue
-)
-
-for $s in dataset('Supplier')
-for $r in revenue()
-	where $s.s_suppkey = $r.supplier_no and $r.total_revenue=$m
-return {
-"s_suppkey": $s.s_suppkey, 
-"s_name": $s.s_name, 
-"s_address": $s.s_address, 
-"s_phone": $s.s_phone, 
-"total_revenue": $r.total_revenue
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql
new file mode 100644
index 0000000..f61ceb5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql
@@ -0,0 +1,27 @@
+use dataverse tpch;
+
+declare function revenue(){
+for $l in dataset('LineItem')
+where $l.l_shipdate >= '1996-01-01' and $l.l_shipdate < '1996-04-01'
+group by $l_suppkey := $l.l_suppkey with $l
+return {
+"supplier_no": $l_suppkey, 
+"total_revenue": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount))
+}
+}
+
+let $m := max(
+	for $r2 in revenue()
+	return $r2.total_revenue
+)
+
+for $s in dataset('Supplier')
+for $r in revenue()
+	where $s.s_suppkey = $r.supplier_no and $r.total_revenue=$m
+return {
+"s_suppkey": $s.s_suppkey, 
+"s_name": $s.s_name, 
+"s_address": $s.s_address, 
+"s_phone": $s.s_phone, 
+"total_revenue": $r.total_revenue
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship.aql
deleted file mode 100644
index 5e337d4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship.aql
+++ /dev/null
@@ -1,198 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-
-write output to nc1:"rttest/tpch_q16_parts_supplier_relationship.adm";
-
-declare function tmp(){
-for $psp in (
-	for $ps in dataset('Partsupp')
-	for $p in dataset('Part')
-		where $p.p_partkey = $ps.ps_partkey and $p.p_brand != 'Brand#45' 
-    	and not(like($p.p_type, 'MEDIUM POLISHED%'))
-	return 
-	{
- 	"p_brand": $p.p_brand, 
- 	"p_type": $p.p_type, 
- 	"p_size": $p.p_size,
- 	"ps_suppkey": $ps.ps_suppkey
-	}
-)
-for $s in dataset('Supplier')
-	where $psp.ps_suppkey = $s.s_suppkey and not(like($s.s_comment, '%Customer%Complaints%'))
-return 
-{
- "p_brand": $psp.p_brand, 
- "p_type": $psp.p_type, 
- "p_size": $psp.p_size, 
- "ps_suppkey": $psp.ps_suppkey
-}
-}
-
-for $t2 in 
-(
-for $t in tmp()   
-	where $t.p_size = 49 or $t.p_size = 14 or $t.p_size = 23 or
-         $t.p_size = 45 or $t.p_size = 19 or $t.p_size = 3 or
-         $t.p_size = 36 or $t.p_size = 9
-group by $p_brand1:= $t.p_brand, $p_type1 := $t.p_type, 
-	  $p_size1:= $t.p_size, $ps_suppkey1:=$t.ps_suppkey with $t
-return 
-{
-"p_brand": $p_brand1, 
- "p_type": $p_type1, 
- "p_size": $p_size1, 
- "ps_suppkey": $ps_suppkey1
-} )
-group by $p_brand := $t2.p_brand, $p_type := $t2.p_type, $p_size := $t2.p_size with $t2
-let $supplier_cnt := count(for $i in $t2 return $i.ps_suppkey)
-order by $supplier_cnt desc, $p_brand, $p_type, $p_size
-return {
-"p_brand": $p_brand, 
-"p_type": $p_type, 
-"p_size": $p_size,
-"supplier_cnt": $supplier_cnt
-}
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.3.query.aql
new file mode 100644
index 0000000..e5c928e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.3.query.aql
@@ -0,0 +1,54 @@
+use dataverse tpch;
+
+declare function tmp(){
+for $psp in (
+	for $ps in dataset('Partsupp')
+	for $p in dataset('Part')
+		where $p.p_partkey = $ps.ps_partkey and $p.p_brand != 'Brand#45' 
+    	and not(like($p.p_type, 'MEDIUM POLISHED%'))
+	return 
+	{
+ 	"p_brand": $p.p_brand, 
+ 	"p_type": $p.p_type, 
+ 	"p_size": $p.p_size,
+ 	"ps_suppkey": $ps.ps_suppkey
+	}
+)
+for $s in dataset('Supplier')
+	where $psp.ps_suppkey = $s.s_suppkey and not(like($s.s_comment, '%Customer%Complaints%'))
+return 
+{
+ "p_brand": $psp.p_brand, 
+ "p_type": $psp.p_type, 
+ "p_size": $psp.p_size, 
+ "ps_suppkey": $psp.ps_suppkey
+}
+}
+
+for $t2 in 
+(
+for $t in tmp()   
+	where $t.p_size = 49 or $t.p_size = 14 or $t.p_size = 23 or
+         $t.p_size = 45 or $t.p_size = 19 or $t.p_size = 3 or
+         $t.p_size = 36 or $t.p_size = 9
+group by $p_brand1:= $t.p_brand, $p_type1 := $t.p_type, 
+	  $p_size1:= $t.p_size, $ps_suppkey1:=$t.ps_suppkey with $t
+return 
+{
+"p_brand": $p_brand1, 
+ "p_type": $p_type1, 
+ "p_size": $p_size1, 
+ "ps_suppkey": $ps_suppkey1
+} )
+group by $p_brand := $t2.p_brand, $p_type := $t2.p_type, $p_size := $t2.p_size with $t2
+let $supplier_cnt := count(for $i in $t2 return $i.ps_suppkey)
+order by $supplier_cnt desc, $p_brand, $p_type, $p_size
+return {
+"p_brand": $p_brand, 
+"p_type": $p_type, 
+"p_size": $p_size,
+"supplier_cnt": $supplier_cnt
+}
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue.aql
deleted file mode 100644
index d631abc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue.aql
+++ /dev/null
@@ -1,164 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q17_small_quantity_order_revenue.adm";
-
-declare function tmp(){
-for $l in dataset('LineItem')
-group by $l_partkey := $l.l_partkey with $l
-return {
-"t_partkey": $l_partkey, 
-"t_avg_quantity": 0.2 * avg(for $i in $l return $i.l_quantity)
-}
-}
-
-sum(
-for $l in dataset('LineItem')
-for $p in dataset('Part')
-where  $p.p_partkey = $l.l_partkey and $p.p_container = 'MED BOX'
-
-for $t in tmp()
-where $l.l_partkey = $t.t_partkey and $l.l_quantity < $t.t_avg_quantity
-return $l.l_extendedprice
-)/7.0
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.3.query.aql
new file mode 100644
index 0000000..67644d9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.3.query.aql
@@ -0,0 +1,21 @@
+use dataverse tpch;
+
+declare function tmp(){
+for $l in dataset('LineItem')
+group by $l_partkey := $l.l_partkey with $l
+return {
+"t_partkey": $l_partkey, 
+"t_avg_quantity": 0.2 * avg(for $i in $l return $i.l_quantity)
+}
+}
+
+sum(
+for $l in dataset('LineItem')
+for $p in dataset('Part')
+where  $p.p_partkey = $l.l_partkey and $p.p_container = 'MED BOX'
+
+for $t in tmp()
+where $l.l_partkey = $t.t_partkey and $l.l_quantity < $t.t_avg_quantity
+return $l.l_extendedprice
+)/7.0
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer.aql
deleted file mode 100644
index 7f55551..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer.aql
+++ /dev/null
@@ -1,175 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q18_large_volume_customer.adm";
-
-for $c in dataset('Customer')
-for $o in dataset('Orders')
-where
-  $c.c_custkey = $o.o_custkey
-for $t in 
-(
-  for $l in dataset('LineItem')
-  group by $l_orderkey := $l.l_orderkey with $l
-  return 
-    { "l_orderkey": $l_orderkey, 
-      "t_sum_quantity": sum(for $i in $l return $i.l_quantity) }
-) 
-where 
-  $o.o_orderkey = $t.l_orderkey and $t.t_sum_quantity > 30
-for $l in dataset('LineItem')
-where
-  $l.l_orderkey = $o.o_orderkey 
-group by $c_name := $c.c_name, $c_custkey := $c.c_custkey, $o_orderkey := $o.o_orderkey, 
-         $o_orderdate := $o.o_orderdate, $o_totalprice := $o.o_totalprice with $l
-order by $o_totalprice desc, $o_orderdate 
-limit 100
-return {  
-  "c_name": $c_name,
-  "c_custkey": $c_custkey,
-  "o_orderkey": $o_orderkey,
-  "o_orderdate": $o_orderdate,
-  "o_totalprice": $o_totalprice,
-  "sum_quantity": sum(for $j in $l return $j.l_quantity)  
-}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.3.query.aql
new file mode 100644
index 0000000..df6d9f0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q18_large_volume_customer/q18_large_volume_customer.3.query.aql
@@ -0,0 +1,32 @@
+use dataverse tpch;
+
+for $c in dataset('Customer')
+for $o in dataset('Orders')
+where
+  $c.c_custkey = $o.o_custkey
+for $t in 
+(
+  for $l in dataset('LineItem')
+  group by $l_orderkey := $l.l_orderkey with $l
+  return 
+    { "l_orderkey": $l_orderkey, 
+      "t_sum_quantity": sum(for $i in $l return $i.l_quantity) }
+) 
+where 
+  $o.o_orderkey = $t.l_orderkey and $t.t_sum_quantity > 30
+for $l in dataset('LineItem')
+where
+  $l.l_orderkey = $o.o_orderkey 
+group by $c_name := $c.c_name, $c_custkey := $c.c_custkey, $o_orderkey := $o.o_orderkey, 
+         $o_orderdate := $o.o_orderdate, $o_totalprice := $o.o_totalprice with $l
+order by $o_totalprice desc, $o_orderdate 
+limit 100
+return {  
+  "c_name": $c_name,
+  "c_custkey": $c_custkey,
+  "o_orderkey": $o_orderkey,
+  "o_orderdate": $o_orderdate,
+  "o_totalprice": $o_totalprice,
+  "sum_quantity": sum(for $j in $l return $j.l_quantity)  
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue.aql
deleted file mode 100644
index cbd9d53..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue.aql
+++ /dev/null
@@ -1,178 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q19_discounted_revenue.adm";
-
-sum( 
-for $l in dataset('LineItem')
-for $p in dataset('Part')
-where $p.p_partkey = $l.l_partkey
-and (
- (
-    $p.p_brand = 'Brand#12'
-	and reg-exp($p.p_container,'SM CASE||SM BOX||SM PACK||SM PKG')
-	and $l.l_quantity >= 1 and $l.l_quantity <= 11
-	and $p.p_size >= 1 and $p.p_size <= 5
-	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
-	and $l.l_shipinstruct = 'DELIVER IN PERSON'
-  ) 
-  or 
-  (
-    $p.p_brand = 'Brand#23'
-	and reg-exp($p.p_container, 'MED BAG||MED BOX||MED PKG||MED PACK')
-	and $l.l_quantity >= 10 and $l.l_quantity <= 20
-	and $p.p_size >= 1 and $p.p_size <= 10
-	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
-	and $l.l_shipinstruct = 'DELIVER IN PERSON'
-  )
-  or
-  (
-	$p.p_brand = 'Brand#34'
-	and reg-exp($p.p_container, 'LG CASE||LG BOX||LG PACK||LG PKG')
-	and $l.l_quantity >= 20 and $l.l_quantity <= 30
-	and $p.p_size >= 1 and $p.p_size <= 15
-	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
-	and $l.l_shipinstruct = 'DELIVER IN PERSON'
-  )
- )
-return $l.l_extendedprice * (1 - $l.l_discount)
-)
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.3.query.aql
new file mode 100644
index 0000000..3fd46d5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q19_discounted_revenue/q19_discounted_revenue.3.query.aql
@@ -0,0 +1,36 @@
+use dataverse tpch;
+
+sum( 
+for $l in dataset('LineItem')
+for $p in dataset('Part')
+where $p.p_partkey = $l.l_partkey
+and (
+ (
+    $p.p_brand = 'Brand#12'
+	and reg-exp($p.p_container,'SM CASE||SM BOX||SM PACK||SM PKG')
+	and $l.l_quantity >= 1 and $l.l_quantity <= 11
+	and $p.p_size >= 1 and $p.p_size <= 5
+	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
+	and $l.l_shipinstruct = 'DELIVER IN PERSON'
+  ) 
+  or 
+  (
+    $p.p_brand = 'Brand#23'
+	and reg-exp($p.p_container, 'MED BAG||MED BOX||MED PKG||MED PACK')
+	and $l.l_quantity >= 10 and $l.l_quantity <= 20
+	and $p.p_size >= 1 and $p.p_size <= 10
+	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
+	and $l.l_shipinstruct = 'DELIVER IN PERSON'
+  )
+  or
+  (
+	$p.p_brand = 'Brand#34'
+	and reg-exp($p.p_container, 'LG CASE||LG BOX||LG PACK||LG PKG')
+	and $l.l_quantity >= 20 and $l.l_quantity <= 30
+	and $p.p_size >= 1 and $p.p_size <= 15
+	and reg-exp($l.l_shipmode, 'AIR||AIR REG')
+	and $l.l_shipinstruct = 'DELIVER IN PERSON'
+  )
+ )
+return $l.l_extendedprice * (1 - $l.l_discount)
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt.aql
deleted file mode 100644
index 2d2e3c4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt.aql
+++ /dev/null
@@ -1,54 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: double, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create nodegroup group1  if not exists on nc1;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q1_pricing_summary_report_nt.adm";
- 
-for $l in dataset('LineItem')
-where $l.l_shipdate <= '1998-09-02'
-/*+ hash*/
-group by $l_returnflag := $l.l_returnflag, $l_linestatus := $l.l_linestatus  
-  with $l
-order by $l_returnflag, $l_linestatus
-return {
-  "l_returnflag": $l_returnflag,
-  "l_linestatus": $l_linestatus,
-  "sum_qty": sum(for $i in $l return $i.l_quantity),
-  "sum_base_price": sum(for $i in $l return $i.l_extendedprice),
-  "sum_disc_price": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount)),
-  "sum_charge": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount) * (1 + $i.l_tax)),
-  "ave_qty": avg(for $i in $l return $i.l_quantity),  
-  "ave_price": avg(for $i in $l return $i.l_extendedprice),
-  "ave_disc": avg(for $i in $l return $i.l_discount),
-  "count_order": count($l)
-}   
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.1.ddl.aql
new file mode 100644
index 0000000..acd6728
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.1.ddl.aql
@@ -0,0 +1,27 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: double, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.2.update.aql
new file mode 100644
index 0000000..f781e6e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.2.update.aql
@@ -0,0 +1,6 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.3.query.aql
new file mode 100644
index 0000000..b6d6c48
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.3.query.aql
@@ -0,0 +1,20 @@
+use dataverse tpch;
+ 
+for $l in dataset('LineItem')
+where $l.l_shipdate <= '1998-09-02'
+/*+ hash*/
+group by $l_returnflag := $l.l_returnflag, $l_linestatus := $l.l_linestatus  
+  with $l
+order by $l_returnflag, $l_linestatus
+return {
+  "l_returnflag": $l_returnflag,
+  "l_linestatus": $l_linestatus,
+  "sum_qty": sum(for $i in $l return $i.l_quantity),
+  "sum_base_price": sum(for $i in $l return $i.l_extendedprice),
+  "sum_disc_price": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount)),
+  "sum_charge": sum(for $i in $l return $i.l_extendedprice * (1 - $i.l_discount) * (1 + $i.l_tax)),
+  "ave_qty": avg(for $i in $l return $i.l_quantity),  
+  "ave_price": avg(for $i in $l return $i.l_extendedprice),
+  "ave_disc": avg(for $i in $l return $i.l_discount),
+  "count_order": count($l)
+}   
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion.aql
deleted file mode 100644
index 091dda6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion.aql
+++ /dev/null
@@ -1,182 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q20_potential_part_promotion.adm";
-
-for $t3 in (
-for $t2 in (
-	for $l in dataset('LineItem')
-		group by $l_partkey:=$l.l_partkey, $l_suppkey:=$l.l_suppkey with $l
-	return {
-	"l_partkey": $l_partkey, 
-	"l_suppkey": $l_suppkey, 
-	"sum_quantity": 0.5 * sum(for $i in $l return $i.l_quantity)
-})
-for $pst1 in (
-	for $ps in dataset('Partsupp')
-	for $t1 in 
-	(
-		for $p in dataset('Part')
-			distinct by $p.p_partkey
-		return {"p_partkey": $p.p_partkey}
-	)
-	where $ps.ps_partkey = $t1.p_partkey
-	return {"ps_suppkey": $ps.ps_suppkey, "ps_partkey": $ps.ps_partkey, "ps_availqty": $ps.ps_availqty}
-)
-where $pst1.ps_partkey = $t2.l_partkey and $pst1.ps_suppkey = $t2.l_suppkey
-		and $pst1.ps_availqty > $t2.sum_quantity
-distinct by $pst1.ps_suppkey
-return {"ps_suppkey": $pst1.ps_suppkey}
-)
-
-for $t4 in (
-	for $n in dataset('Nation')
-	for $s in dataset('Supplier')
-		where  $s.s_nationkey = $n.n_nationkey
-	return {"s_name": $s.s_name, "s_address": $s.s_address, "s_suppkey": $s.s_suppkey}
-)
-
-where $t3.ps_suppkey = $t4.s_suppkey
-order by $t4.s_name
-return {"s_name": $t4.s_name, "s_address": $t4.s_address}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.3.query.aql
new file mode 100644
index 0000000..a5a5bbe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q20_potential_part_promotion/q20_potential_part_promotion.3.query.aql
@@ -0,0 +1,39 @@
+use dataverse tpch;
+
+for $t3 in (
+for $t2 in (
+	for $l in dataset('LineItem')
+		group by $l_partkey:=$l.l_partkey, $l_suppkey:=$l.l_suppkey with $l
+	return {
+	"l_partkey": $l_partkey, 
+	"l_suppkey": $l_suppkey, 
+	"sum_quantity": 0.5 * sum(for $i in $l return $i.l_quantity)
+})
+for $pst1 in (
+	for $ps in dataset('Partsupp')
+	for $t1 in 
+	(
+		for $p in dataset('Part')
+			distinct by $p.p_partkey
+		return {"p_partkey": $p.p_partkey}
+	)
+	where $ps.ps_partkey = $t1.p_partkey
+	return {"ps_suppkey": $ps.ps_suppkey, "ps_partkey": $ps.ps_partkey, "ps_availqty": $ps.ps_availqty}
+)
+where $pst1.ps_partkey = $t2.l_partkey and $pst1.ps_suppkey = $t2.l_suppkey
+		and $pst1.ps_availqty > $t2.sum_quantity
+distinct by $pst1.ps_suppkey
+return {"ps_suppkey": $pst1.ps_suppkey}
+)
+
+for $t4 in (
+	for $n in dataset('Nation')
+	for $s in dataset('Supplier')
+		where  $s.s_nationkey = $n.n_nationkey
+	return {"s_name": $s.s_name, "s_address": $s.s_address, "s_suppkey": $s.s_suppkey}
+)
+
+where $t3.ps_suppkey = $t4.s_suppkey
+order by $t4.s_name
+return {"s_name": $t4.s_name, "s_address": $t4.s_address}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting.aql
deleted file mode 100644
index e8bf676..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting.aql
+++ /dev/null
@@ -1,222 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q21_suppliers_who_kept_orders_waiting.adm";
-
-
-declare function tmp1()
-{
-for $l2 in 
-(
-	for $l in dataset('LineItem')
-	group by $l_orderkey1 := $l.l_orderkey, $l_suppkey1 := $l.l_suppkey with $l
-	return {
-		"l_orderkey": $l_orderkey1,
-		"l_suppkey": $l_suppkey1
-		} 
-)
-group by $l_orderkey := $l2.l_orderkey with $l2
-return {
-	"l_orderkey": $l_orderkey, 
-	"count_suppkey": count(for $i in $l2 return $i.l_suppkey), 
-	"max_suppkey": max(for $i in $l2 return $i.l_suppkey)
-}
-}
-
-declare function tmp2()
-{
-for $l2 in 
-(
-	for $l in dataset('LineItem')
-	where $l.l_receiptdate > $l.l_commitdate
-	group by $l_orderkey1 := $l.l_orderkey, $l_suppkey1 := $l.l_suppkey with $l
-	return {
-		"l_orderkey": $l_orderkey1,
-		"l_suppkey": $l_suppkey1
-		} 
-)
-group by $l_orderkey := $l2.l_orderkey with $l2
-return {
-"l_orderkey": $l_orderkey, 
-"count_suppkey": count(for $i in $l2 return $i.l_suppkey), 
-"max_suppkey": max(for $i in $l2 return $i.l_suppkey)
-}
-}
-
-for $t4 in (
-for $t3 in (
-	for $l in dataset('LineItem')
-	for $ns in (
-		for $n in dataset('Nation')
-		for $s in dataset('Supplier')
-			where $s.s_nationkey = $n.n_nationkey
-		return {"s_name": $s.s_name, "s_suppkey": $s.s_suppkey}
-	)
-	where $ns.s_suppkey = $l.l_suppkey and $l.l_receiptdate > $l.l_commitdate
-
-	for $o in dataset('Orders')
-	where $o.o_orderkey = $l.l_orderkey
-
-	for $t1 in tmp1()
-	where $l.l_orderkey = $t1.l_orderkey
-	
-	return {"s_name": $ns.s_name, "l_orderkey": $t1.l_orderkey, "l_suppkey": $l.l_suppkey}
-)
-
-for $t2 in tmp2() 
-			where $t2.count_suppkey >= 0 and $t3.l_orderkey = $t2.l_orderkey
-			
-return {
-"s_name": $t3.s_name,
-"l_suppkey": $t3.l_suppkey,
-"l_orderkey": $t2.l_orderkey,
-"count_suppkey": $t2.count_suppkey, 
-"max_suppkey": $t2.max_suppkey
-} )
-group by $s_name := $t4.s_name with $t4
-let $numwait := count($t4)
-order by $numwait desc, $s_name
-return {
-"s_name": $s_name,
-"numwait": $numwait
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.3.query.aql
new file mode 100644
index 0000000..eb94678
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.3.query.aql
@@ -0,0 +1,78 @@
+use dataverse tpch;
+
+declare function tmp1()
+{
+for $l2 in 
+(
+	for $l in dataset('LineItem')
+	group by $l_orderkey1 := $l.l_orderkey, $l_suppkey1 := $l.l_suppkey with $l
+	return {
+		"l_orderkey": $l_orderkey1,
+		"l_suppkey": $l_suppkey1
+		} 
+)
+group by $l_orderkey := $l2.l_orderkey with $l2
+return {
+	"l_orderkey": $l_orderkey, 
+	"count_suppkey": count(for $i in $l2 return $i.l_suppkey), 
+	"max_suppkey": max(for $i in $l2 return $i.l_suppkey)
+}
+}
+
+declare function tmp2()
+{
+for $l2 in 
+(
+	for $l in dataset('LineItem')
+	where $l.l_receiptdate > $l.l_commitdate
+	group by $l_orderkey1 := $l.l_orderkey, $l_suppkey1 := $l.l_suppkey with $l
+	return {
+		"l_orderkey": $l_orderkey1,
+		"l_suppkey": $l_suppkey1
+		} 
+)
+group by $l_orderkey := $l2.l_orderkey with $l2
+return {
+"l_orderkey": $l_orderkey, 
+"count_suppkey": count(for $i in $l2 return $i.l_suppkey), 
+"max_suppkey": max(for $i in $l2 return $i.l_suppkey)
+}
+}
+
+for $t4 in (
+for $t3 in (
+	for $l in dataset('LineItem')
+	for $ns in (
+		for $n in dataset('Nation')
+		for $s in dataset('Supplier')
+			where $s.s_nationkey = $n.n_nationkey
+		return {"s_name": $s.s_name, "s_suppkey": $s.s_suppkey}
+	)
+	where $ns.s_suppkey = $l.l_suppkey and $l.l_receiptdate > $l.l_commitdate
+
+	for $o in dataset('Orders')
+	where $o.o_orderkey = $l.l_orderkey
+
+	for $t1 in tmp1()
+	where $l.l_orderkey = $t1.l_orderkey
+	
+	return {"s_name": $ns.s_name, "l_orderkey": $t1.l_orderkey, "l_suppkey": $l.l_suppkey}
+)
+
+for $t2 in tmp2() 
+			where $t2.count_suppkey >= 0 and $t3.l_orderkey = $t2.l_orderkey
+			
+return {
+"s_name": $t3.s_name,
+"l_suppkey": $t3.l_suppkey,
+"l_orderkey": $t2.l_orderkey,
+"count_suppkey": $t2.count_suppkey, 
+"max_suppkey": $t2.max_suppkey
+} )
+group by $s_name := $t4.s_name with $t4
+let $numwait := count($t4)
+order by $numwait desc, $s_name
+return {
+"s_name": $s_name,
+"numwait": $numwait
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity.aql
deleted file mode 100644
index 3f96e89..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity.aql
+++ /dev/null
@@ -1,174 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q22_global_sales_opportunity.adm";
-  
-  
-declare function q22_customer_tmp(){
-for $c in dataset('Customer')
-return {
-"c_acctbal": $c.c_acctbal,
-"c_custkey": $c.c_custkey,
-"cntrycode": substring($c.c_phone, 1, 2)
-}
-}
-
-
-let $avg := avg( for $c in dataset('Customer')
-					where $c.c_acctbal > 0.00
-				 return $c.c_acctbal
-				)
-for $ct in q22_customer_tmp()
-where $ct.c_acctbal > $avg
-
-group by $cntrycode := $ct.cntrycode with $ct
-order by $cntrycode
-
-return {
-"cntrycode": $cntrycode, 
-"numcust": count($ct), 
-"totacctbal": sum(for $i in $ct return $i.c_acctbal)
-}
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.3.query.aql
new file mode 100644
index 0000000..a07e4ad
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.3.query.aql
@@ -0,0 +1,30 @@
+use dataverse tpch;
+
+declare function q22_customer_tmp(){
+for $c in dataset('Customer')
+return {
+"c_acctbal": $c.c_acctbal,
+"c_custkey": $c.c_custkey,
+"cntrycode": substring($c.c_phone, 1, 2)
+}
+}
+
+
+let $avg := avg( for $c in dataset('Customer')
+					where $c.c_acctbal > 0.00
+				 return $c.c_acctbal
+				)
+for $ct in q22_customer_tmp()
+where $ct.c_acctbal > $avg
+
+group by $cntrycode := $ct.cntrycode with $ct
+order by $cntrycode
+
+return {
+"cntrycode": $cntrycode, 
+"numcust": count($ct), 
+"totacctbal": sum(for $i in $ct return $i.c_acctbal)
+}
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier.aql
deleted file mode 100644
index 1b87727..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier.aql
+++ /dev/null
@@ -1,245 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q2_minimum_cost_supplier.adm";
-
-declare function tmp1(){
-for $p in dataset('Part')
-for $pssrn in 
-(
-	for $ps in dataset('Partsupp')
-	for $srn in 
-		(
-		for $s in dataset('Supplier')
-		 for $rn in
-			(
-			for $r in dataset('Region')
-			for $n in dataset('Nation')
-			where $n.n_regionkey = $r.r_regionkey and $r.r_name = 'EUROPE' 
-			return {"n_nationkey": $n.n_nationkey, "n_name": $n.n_name}
-			)
-		 where $s.s_nationkey = $rn.n_nationkey
-		 return {"s_suppkey": $s.s_suppkey, "n_name": $rn.n_name,
-		 		"s_name": $s.s_name,
-		 		"s_acctbal": $s.s_acctbal,
-		 		"s_address": $s.s_address, 
-				"s_phone": $s.s_phone, 
-				"s_comment": $s.s_comment}
-		)
-	where $srn.s_suppkey = $ps.ps_suppkey
-	return {"n_name": $srn.n_name, "p_partkey": $ps.ps_partkey, "ps_supplycost": $ps.ps_supplycost,
-			"s_name": $srn.s_name,
-			"s_acctbal": $srn.s_acctbal,
-		 	"s_address":  $srn.s_address, 
-			"s_phone":  $srn.s_phone, 
-			"s_comment":  $srn.s_comment}
-) 
-where $p.p_partkey = $pssrn.p_partkey and like($p.p_type, '%BRASS') 
-return 
-{"s_acctbal": $pssrn.s_acctbal, 
-"s_name": $pssrn.s_name, 
-"n_name": $pssrn.n_name, 
-"p_partkey": $p.p_partkey, 
-"ps_supplycost": $pssrn.ps_supplycost, 
-"p_mfgr": $p.p_mfgr, 
-"s_address":  $pssrn.s_address, 
-"s_phone":  $pssrn.s_phone, 
-"s_comment":  $pssrn.s_comment
-}
-}
-
-declare function tmp2(){
-for $p in dataset('Part')
-for $pssrn in 
-(
-	for $ps in dataset('Partsupp')
-	for $srn in 
-		(
-		for $s in dataset('Supplier')
-		 for $rn in
-			(
-			for $r in dataset('Region')
-			for $n in dataset('Nation')
-			where $n.n_regionkey = $r.r_regionkey and $r.r_name = 'EUROPE' 
-			return {"n_nationkey": $n.n_nationkey, "n_name": $n.n_name}
-			)
-		 where $s.s_nationkey = $rn.n_nationkey
-		 return {"s_suppkey": $s.s_suppkey, "n_name": $rn.n_name,
-		 		"s_name": $s.s_name,
-		 		"s_acctbal": $s.s_acctbal,
-		 		"s_address": $s.s_address, 
-				"s_phone": $s.s_phone, 
-				"s_comment": $s.s_comment}
-		)
-	where $srn.s_suppkey = $ps.ps_suppkey
-	return {"n_name": $srn.n_name, "p_partkey": $ps.ps_partkey, "ps_supplycost": $ps.ps_supplycost,
-			"s_name": $srn.s_name,
-			"s_acctbal": $srn.s_acctbal,
-		 	"s_address":  $srn.s_address, 
-			"s_phone":  $srn.s_phone, 
-			"s_comment":  $srn.s_comment}
-)
-where $p.p_partkey = $pssrn.p_partkey and like($p.p_type, '%BRASS') 
-/*+ hash*/
-group by $p_partkey := $pssrn.p_partkey
-with $pssrn
-return {"p_partkey": $p_partkey, 
-"ps_min_supplycost": min(for $i in $pssrn return $i.ps_supplycost)
-}
-}
-
-for $t2 in tmp2()
-for $t1 in tmp1()
-where $t1.p_partkey = $t2.p_partkey and $t1.ps_supplycost = $t2.ps_min_supplycost
-order by $t1.s_acctbal desc, $t1.n_name, $t1.s_name, $t1.p_partkey
-limit 100
-return 
-{
-"s_acctbal":$t1.s_acctbal, 
-"s_name":$t1.s_name, 
-"n_name":$t1.n_name, 
-"p_partkey":$t1.p_partkey, 
-"p_mfgr":$t1.p_mfgr, 
-"s_address":$t1.s_address, 
-"s_phone":$t1.s_phone, 
-"s_comment":$t1.s_comment
-} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.3.query.aql
new file mode 100644
index 0000000..c13dbb9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.3.query.aql
@@ -0,0 +1,103 @@
+use dataverse tpch;
+
+declare function tmp1(){
+for $p in dataset('Part')
+for $pssrn in 
+(
+	for $ps in dataset('Partsupp')
+	for $srn in 
+		(
+		for $s in dataset('Supplier')
+		 for $rn in
+			(
+			for $r in dataset('Region')
+			for $n in dataset('Nation')
+			where $n.n_regionkey = $r.r_regionkey and $r.r_name = 'EUROPE' 
+			return {"n_nationkey": $n.n_nationkey, "n_name": $n.n_name}
+			)
+		 where $s.s_nationkey = $rn.n_nationkey
+		 return {"s_suppkey": $s.s_suppkey, "n_name": $rn.n_name,
+		 		"s_name": $s.s_name,
+		 		"s_acctbal": $s.s_acctbal,
+		 		"s_address": $s.s_address, 
+				"s_phone": $s.s_phone, 
+				"s_comment": $s.s_comment}
+		)
+	where $srn.s_suppkey = $ps.ps_suppkey
+	return {"n_name": $srn.n_name, "p_partkey": $ps.ps_partkey, "ps_supplycost": $ps.ps_supplycost,
+			"s_name": $srn.s_name,
+			"s_acctbal": $srn.s_acctbal,
+		 	"s_address":  $srn.s_address, 
+			"s_phone":  $srn.s_phone, 
+			"s_comment":  $srn.s_comment}
+) 
+where $p.p_partkey = $pssrn.p_partkey and like($p.p_type, '%BRASS') 
+return 
+{"s_acctbal": $pssrn.s_acctbal, 
+"s_name": $pssrn.s_name, 
+"n_name": $pssrn.n_name, 
+"p_partkey": $p.p_partkey, 
+"ps_supplycost": $pssrn.ps_supplycost, 
+"p_mfgr": $p.p_mfgr, 
+"s_address":  $pssrn.s_address, 
+"s_phone":  $pssrn.s_phone, 
+"s_comment":  $pssrn.s_comment
+}
+}
+
+declare function tmp2(){
+for $p in dataset('Part')
+for $pssrn in 
+(
+	for $ps in dataset('Partsupp')
+	for $srn in 
+		(
+		for $s in dataset('Supplier')
+		 for $rn in
+			(
+			for $r in dataset('Region')
+			for $n in dataset('Nation')
+			where $n.n_regionkey = $r.r_regionkey and $r.r_name = 'EUROPE' 
+			return {"n_nationkey": $n.n_nationkey, "n_name": $n.n_name}
+			)
+		 where $s.s_nationkey = $rn.n_nationkey
+		 return {"s_suppkey": $s.s_suppkey, "n_name": $rn.n_name,
+		 		"s_name": $s.s_name,
+		 		"s_acctbal": $s.s_acctbal,
+		 		"s_address": $s.s_address, 
+				"s_phone": $s.s_phone, 
+				"s_comment": $s.s_comment}
+		)
+	where $srn.s_suppkey = $ps.ps_suppkey
+	return {"n_name": $srn.n_name, "p_partkey": $ps.ps_partkey, "ps_supplycost": $ps.ps_supplycost,
+			"s_name": $srn.s_name,
+			"s_acctbal": $srn.s_acctbal,
+		 	"s_address":  $srn.s_address, 
+			"s_phone":  $srn.s_phone, 
+			"s_comment":  $srn.s_comment}
+)
+where $p.p_partkey = $pssrn.p_partkey and like($p.p_type, '%BRASS') 
+/*+ hash*/
+group by $p_partkey := $pssrn.p_partkey
+with $pssrn
+return {"p_partkey": $p_partkey, 
+"ps_min_supplycost": min(for $i in $pssrn return $i.ps_supplycost)
+}
+}
+
+for $t2 in tmp2()
+for $t1 in tmp1()
+where $t1.p_partkey = $t2.p_partkey and $t1.ps_supplycost = $t2.ps_min_supplycost
+order by $t1.s_acctbal desc, $t1.n_name, $t1.s_name, $t1.p_partkey
+limit 100
+return 
+{
+"s_acctbal":$t1.s_acctbal, 
+"s_name":$t1.s_name, 
+"n_name":$t1.n_name, 
+"p_partkey":$t1.p_partkey, 
+"p_mfgr":$t1.p_mfgr, 
+"s_address":$t1.s_address, 
+"s_phone":$t1.s_phone, 
+"s_comment":$t1.s_comment
+} 
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt.aql
deleted file mode 100644
index 3152a4b..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt.aql
+++ /dev/null
@@ -1,148 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q3_shipping_priority_nt.adm";
-
-for $c in dataset('Customer')
-for $o in dataset('Orders')
-where
-  $c.c_mktsegment = 'BUILDING' and $c.c_custkey = $o.o_custkey 
-for $l in dataset('LineItem')
-where
-  $l.l_orderkey = $o.o_orderkey and
-  $o.o_orderdate < '1995-03-15' and $l.l_shipdate > '1995-03-15'
-/*+ hash*/
-group by $l_orderkey := $l.l_orderkey, $o_orderdate := $o.o_orderdate, $o_shippriority := $o.o_shippriority
-  with $l
-let $revenue := sum (
-  for $i in $l 
-  return 
-    $i.l_extendedprice * (1 - $i.l_discount)
-)
-order by $revenue desc, $o_orderdate
-limit 10
-return {  
-  "l_orderkey": $l_orderkey,
-  "revenue": $revenue,
-  "o_orderdate": $o_orderdate,
-  "o_shippriority": $o_shippriority 
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.2.update.aql
new file mode 100644
index 0000000..a860934
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.2.update.aql
@@ -0,0 +1,14 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.3.query.aql
new file mode 100644
index 0000000..1c958cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.3.query.aql
@@ -0,0 +1,26 @@
+use dataverse tpch;
+
+for $c in dataset('Customer')
+for $o in dataset('Orders')
+where
+  $c.c_mktsegment = 'BUILDING' and $c.c_custkey = $o.o_custkey 
+for $l in dataset('LineItem')
+where
+  $l.l_orderkey = $o.o_orderkey and
+  $o.o_orderdate < '1995-03-15' and $l.l_shipdate > '1995-03-15'
+/*+ hash*/
+group by $l_orderkey := $l.l_orderkey, $o_orderdate := $o.o_orderdate, $o_shippriority := $o.o_shippriority
+  with $l
+let $revenue := sum (
+  for $i in $l 
+  return 
+    $i.l_extendedprice * (1 - $i.l_discount)
+)
+order by $revenue desc, $o_orderdate
+limit 10
+return {  
+  "l_orderkey": $l_orderkey,
+  "revenue": $revenue,
+  "o_orderdate": $o_orderdate,
+  "o_shippriority": $o_shippriority 
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority.aql
deleted file mode 100644
index a616f1c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority.aql
+++ /dev/null
@@ -1,166 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q4_order_priority.adm";
-
-declare function tmp()
-{
-for $l in dataset('LineItem')
-where $l.l_commitdate<$l.l_receiptdate
-distinct by $l.l_orderkey
-return {"o_orderkey": $l.l_orderkey}
-}
-
-for $o in dataset('Orders')
-for $t in tmp()
-where
-$o.o_orderkey = $t.o_orderkey and 
-$o.o_orderdate >= '1993-07-01' and $o.o_orderdate < '1993-10-01' 
-group by $o_orderpriority := $o.o_orderpriority 
-with $o
-order by $o_orderpriority
-return 
-{
-"order_priority": $o_orderpriority,
-"count": count($o)
-}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.3.query.aql
new file mode 100644
index 0000000..4079a25
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q4_order_priority/q4_order_priority.3.query.aql
@@ -0,0 +1,24 @@
+use dataverse tpch;
+
+declare function tmp()
+{
+for $l in dataset('LineItem')
+where $l.l_commitdate<$l.l_receiptdate
+distinct by $l.l_orderkey
+return {"o_orderkey": $l.l_orderkey}
+}
+
+for $o in dataset('Orders')
+for $t in tmp()
+where
+$o.o_orderkey = $t.o_orderkey and 
+$o.o_orderdate >= '1993-07-01' and $o.o_orderdate < '1993-10-01' 
+group by $o_orderpriority := $o.o_orderpriority 
+with $o
+order by $o_orderpriority
+return 
+{
+"order_priority": $o_orderpriority,
+"count": count($o)
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume.aql
deleted file mode 100644
index 3a5650f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume.aql
+++ /dev/null
@@ -1,180 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-
-write output to nc1:"rttest/tpch_q5_local_supplier_volume.adm";
-
-
-
-for $c in dataset('Customer')
-for $o1 in 
-(  for $o in dataset('Orders')
-   for $l1 in (
-     for $l in dataset('LineItem')
-     for $s1 in 
-     (  for $s in dataset('Supplier')
-        for $n1 in 
-        (  for $n in dataset('Nation')
-           for $r in dataset('Region')
-             where $n.n_regionkey = $r.r_regionkey
-           return 
-              {"n_name": $n.n_name, "n_nationkey": $n.n_nationkey}  )
-        where $s.s_nationkey = $n1.n_nationkey
-        return 
-           { "n_name": $n1.n_name, "s_suppkey": $s.s_suppkey, "s_nationkey": $s.s_nationkey }  )
-     where $l.l_suppkey = $s1.s_suppkey      
-     return 
-        { "n_name": $s1.n_name, "l_extendedprice": $l.l_extendedprice, "l_discount": $l.l_discount, "l_orderkey": $l.l_orderkey, "s_nationkey": $s1.s_nationkey }  )
-   where $l1.l_orderkey = $o.o_orderkey and $o.o_orderdate >= '1990-01-01' and $o.o_orderdate < '1995-01-01'
-   return 
-     { "n_name": $l1.n_name, "l_extendedprice": $l1.l_extendedprice, "l_discount": $l1.l_discount, "s_nationkey": $l1.s_nationkey, "o_custkey": $o.o_custkey }  )
-where $c.c_nationkey = $o1.s_nationkey and $c.c_custkey = $o1.o_custkey
-/*+ hash*/     
-group by $n_name := $o1.n_name with $o1
-let $revenue := sum (
-  for $i in $o1 
-  return 
-    $i.l_extendedprice * (1 - $i.l_discount)
-)
-order by $revenue desc
-return 
-  { "n_name": $n_name, "revenue": $revenue }
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.1.ddl.aql
new file mode 100644
index 0000000..ee0ed24
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+  
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.3.query.aql
new file mode 100644
index 0000000..d654ce1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q5_local_supplier_volume/q5_local_supplier_volume.3.query.aql
@@ -0,0 +1,35 @@
+use dataverse tpch;
+
+for $c in dataset('Customer')
+for $o1 in 
+(  for $o in dataset('Orders')
+   for $l1 in (
+     for $l in dataset('LineItem')
+     for $s1 in 
+     (  for $s in dataset('Supplier')
+        for $n1 in 
+        (  for $n in dataset('Nation')
+           for $r in dataset('Region')
+             where $n.n_regionkey = $r.r_regionkey
+           return 
+              {"n_name": $n.n_name, "n_nationkey": $n.n_nationkey}  )
+        where $s.s_nationkey = $n1.n_nationkey
+        return 
+           { "n_name": $n1.n_name, "s_suppkey": $s.s_suppkey, "s_nationkey": $s.s_nationkey }  )
+     where $l.l_suppkey = $s1.s_suppkey      
+     return 
+        { "n_name": $s1.n_name, "l_extendedprice": $l.l_extendedprice, "l_discount": $l.l_discount, "l_orderkey": $l.l_orderkey, "s_nationkey": $s1.s_nationkey }  )
+   where $l1.l_orderkey = $o.o_orderkey and $o.o_orderdate >= '1990-01-01' and $o.o_orderdate < '1995-01-01'
+   return 
+     { "n_name": $l1.n_name, "l_extendedprice": $l1.l_extendedprice, "l_discount": $l1.l_discount, "s_nationkey": $l1.s_nationkey, "o_custkey": $o.o_custkey }  )
+where $c.c_nationkey = $o1.s_nationkey and $c.c_custkey = $o1.o_custkey
+/*+ hash*/     
+group by $n_name := $o1.n_name with $o1
+let $revenue := sum (
+  for $i in $o1 
+  return 
+    $i.l_extendedprice * (1 - $i.l_discount)
+)
+order by $revenue desc
+return 
+  { "n_name": $n_name, "revenue": $revenue }
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change.aql
deleted file mode 100644
index ea05231..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change.aql
+++ /dev/null
@@ -1,156 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q6_forecast_revenue_change.adm";
-
-let $revenue := sum(
-for $l in dataset('LineItem')
-where 
-  $l.l_shipdate >= '1994-01-01'
-  and $l.l_shipdate < '1995-01-01'
-  and $l.l_discount >= 0.05 and $l.l_discount <= 0.07
-  and $l.l_quantity < 24
-return $l.l_extendedprice * $l.l_discount
-)
-return {
-"revenue": $revenue
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.1.ddl.aql
new file mode 100644
index 0000000..733d940
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+  
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.3.query.aql
new file mode 100644
index 0000000..8ac1613
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.3.query.aql
@@ -0,0 +1,14 @@
+use dataverse tpch;
+
+let $revenue := sum(
+for $l in dataset('LineItem')
+where 
+  $l.l_shipdate >= '1994-01-01'
+  and $l.l_shipdate < '1995-01-01'
+  and $l.l_discount >= 0.05 and $l.l_discount <= 0.07
+  and $l.l_quantity < 24
+return $l.l_extendedprice * $l.l_discount
+)
+return {
+"revenue": $revenue
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping.aql
deleted file mode 100644
index c603a75..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping.aql
+++ /dev/null
@@ -1,212 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q7_volume_shipping.adm";
-
-declare function q7_volume_shipping_tmp(){
-for $n1 in dataset('Nation') 
-for $n2 in dataset('Nation')
-   where $n2.n_name='GERMANY' or $n1.n_name='GERMANY' 
-return 
-{
- 	"supp_nation": $n1.n_name, 
- 	"cust_nation": $n2.n_name, 
- 	"s_nationkey": $n1.n_nationkey,      
-    "c_nationkey": $n2.n_nationkey
-}
-}
-
-for $locs in (
-	for $loc in (
-		for $lo in 
-		(
-			for $l in dataset('LineItem')
-			for $o in dataset('Orders')
-			where 
-				$o.o_orderkey = $l.l_orderkey and $l.l_shipdate >= '1992-01-01' 
-				and $l.l_shipdate <= '1996-12-31'
-			return
-			{
-			"l_shipdate": $l.l_shipdate, 
-			"l_extendedprice": $l.l_extendedprice, 
-			"l_discount": $l.l_discount, 
-			"l_suppkey": $l.l_suppkey, 
-			"o_custkey": $o.o_custkey 
-			}
-		)
-		for $c in dataset('Customer')
-		where
-			$c.c_custkey = $lo.o_custkey
-		return 
-		{
-		"l_shipdate": $lo.l_shipdate, 
-		"l_extendedprice": $lo.l_extendedprice, 
-		"l_discount": $lo.l_discount, 
-		"l_suppkey": $lo.l_suppkey, 
-		"c_nationkey": $c.c_nationkey 
-		}
-	)
-	for $s in dataset('Supplier')
-	where
-		$s.s_suppkey = $loc.l_suppkey
-	return {
-	"l_shipdate": $loc.l_shipdate, 
-	"l_extendedprice": $loc.l_extendedprice, 
-	"l_discount": $loc.l_discount, 
-	"c_nationkey": $loc.c_nationkey, 
-	"s_nationkey": $s.s_nationkey
-	}
-)
-for $t in q7_volume_shipping_tmp()
-where
-	$locs.c_nationkey = $t.c_nationkey and $locs.s_nationkey = $t.s_nationkey
-let $l_year0 := year($locs.l_shipdate)
-group by $supp_nation := $t.supp_nation, $cust_nation := $t.cust_nation, $l_year := $l_year0
-with $locs
-let $revenue := sum(for $i in $locs return $i.l_extendedprice * (1 - $i.l_discount))
-order by $supp_nation, $cust_nation, $l_year
-return {
-	"supp_nation": $supp_nation, 
-	"cust_nation": $cust_nation, 
-	"l_year": $l_year,
-	"revenue": $revenue
-}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.2.update.aql
new file mode 100644
index 0000000..0adc8e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.3.query.aql
new file mode 100644
index 0000000..58515b8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q7_volume_shipping/q7_volume_shipping.3.query.aql
@@ -0,0 +1,70 @@
+use dataverse tpch;
+
+declare function q7_volume_shipping_tmp(){
+for $n1 in dataset('Nation') 
+for $n2 in dataset('Nation')
+   where $n2.n_name='GERMANY' or $n1.n_name='GERMANY' 
+return 
+{
+ 	"supp_nation": $n1.n_name, 
+ 	"cust_nation": $n2.n_name, 
+ 	"s_nationkey": $n1.n_nationkey,      
+    "c_nationkey": $n2.n_nationkey
+}
+}
+
+for $locs in (
+	for $loc in (
+		for $lo in 
+		(
+			for $l in dataset('LineItem')
+			for $o in dataset('Orders')
+			where 
+				$o.o_orderkey = $l.l_orderkey and $l.l_shipdate >= '1992-01-01' 
+				and $l.l_shipdate <= '1996-12-31'
+			return
+			{
+			"l_shipdate": $l.l_shipdate, 
+			"l_extendedprice": $l.l_extendedprice, 
+			"l_discount": $l.l_discount, 
+			"l_suppkey": $l.l_suppkey, 
+			"o_custkey": $o.o_custkey 
+			}
+		)
+		for $c in dataset('Customer')
+		where
+			$c.c_custkey = $lo.o_custkey
+		return 
+		{
+		"l_shipdate": $lo.l_shipdate, 
+		"l_extendedprice": $lo.l_extendedprice, 
+		"l_discount": $lo.l_discount, 
+		"l_suppkey": $lo.l_suppkey, 
+		"c_nationkey": $c.c_nationkey 
+		}
+	)
+	for $s in dataset('Supplier')
+	where
+		$s.s_suppkey = $loc.l_suppkey
+	return {
+	"l_shipdate": $loc.l_shipdate, 
+	"l_extendedprice": $loc.l_extendedprice, 
+	"l_discount": $loc.l_discount, 
+	"c_nationkey": $loc.c_nationkey, 
+	"s_nationkey": $s.s_nationkey
+	}
+)
+for $t in q7_volume_shipping_tmp()
+where
+	$locs.c_nationkey = $t.c_nationkey and $locs.s_nationkey = $t.s_nationkey
+let $l_year0 := year($locs.l_shipdate)
+group by $supp_nation := $t.supp_nation, $cust_nation := $t.cust_nation, $l_year := $l_year0
+with $locs
+let $revenue := sum(for $i in $locs return $i.l_extendedprice * (1 - $i.l_discount))
+order by $supp_nation, $cust_nation, $l_year
+return {
+	"supp_nation": $supp_nation, 
+	"cust_nation": $cust_nation, 
+	"l_year": $l_year,
+	"revenue": $revenue
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share.aql
deleted file mode 100644
index bea39bf..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share.aql
+++ /dev/null
@@ -1,215 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset Partsupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Partsupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-write output to nc1:"rttest/tpch_q8_national_market_share.adm";
-
-
-for $t in (
-for $slnrcop in 
-(for $s in dataset("Supplier")
-for $lnrcop in
-(
-for $lnrco in
-(
-for $l in dataset('LineItem')
-for $nrco in (
-	for $o in dataset('Orders')
-	for $nrc in (
-		for $c in dataset('Customer')
-		for $nr in (
-			for $n1 in dataset('Nation')
-			for $r1 in dataset('Region')
-				where $n1.n_regionkey = $r1.r_regionkey and $r1.r_name = 'AMERICA'
-			return {"n_nationkey": $n1.n_nationkey}
-		)
-		where $c.c_nationkey = $nr.n_nationkey
-		return {"c_custkey": $c.c_custkey}
-	)
-	where $nrc.c_custkey = $o.o_custkey
-	return {
-		"o_orderdate" : $o.o_orderdate, 
-		"o_orderkey": $o.o_orderkey 
-	}
-)
-where $l.l_orderkey = $nrco.o_orderkey and $nrco.o_orderdate >= '1995-01-01' 
-                         and $nrco.o_orderdate < '1996-12-31'
-return {
-  "o_orderdate": $nrco.o_orderdate, 
-  "l_partkey": $l.l_partkey, 
-  "l_discount": $l.l_discount, 
-  "l_extendedprice": $l.l_extendedprice, 
-  "l_suppkey": $l.l_suppkey
-})
-for $p in dataset("Part")
-where $p.p_partkey = $lnrco.l_partkey and $p.p_type = 'ECONOMY ANODIZED STEEL'
-return {
-	"o_orderdate": $lnrco.o_orderdate, 
-	"l_discount": $lnrco.l_discount, 
-	"l_extendedprice": $lnrco.l_extendedprice, 
-	"l_suppkey": $lnrco.l_suppkey 
-}
-)
-where $s.s_suppkey = $lnrcop.l_suppkey
-return {
-	"o_orderdate": $lnrcop.o_orderdate, 
-	"l_discount": $lnrcop.l_discount, 
-	"l_extendedprice": $lnrcop.l_extendedprice, 
-	"l_suppkey": $lnrcop.l_suppkey, 
-	"s_nationkey": $s.s_nationkey
-})
-
-for $n2 in dataset('Nation')
-where $slnrcop.s_nationkey = $n2.n_nationkey
-let $o_year := year($slnrcop.o_orderdate)
-return {
-  "year": $o_year,
-  "revenue": $slnrcop.l_extendedprice *(1-$slnrcop.l_discount),
-  "s_name": $n2.n_name
-})
-group by $year := $t.year with $t
-order by $year
-return {
-	"year": $year,
-	"mkt_share":sum(for $i in $t return switch-case($i.s_name='BRAZIL', true, $i.revenue, false, 0.0))/ 
-				sum(for $i in $t return $i.revenue)
-}
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.1.ddl.aql
new file mode 100644
index 0000000..8af3065
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset Partsupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.2.update.aql
new file mode 100644
index 0000000..b23ff7f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.2.update.aql
@@ -0,0 +1,33 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Partsupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.3.query.aql
new file mode 100644
index 0000000..7d3dd00
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q8_national_market_share/q8_national_market_share.3.query.aql
@@ -0,0 +1,72 @@
+use dataverse tpch;
+
+for $t in (
+for $slnrcop in 
+(for $s in dataset("Supplier")
+for $lnrcop in
+(
+for $lnrco in
+(
+for $l in dataset('LineItem')
+for $nrco in (
+	for $o in dataset('Orders')
+	for $nrc in (
+		for $c in dataset('Customer')
+		for $nr in (
+			for $n1 in dataset('Nation')
+			for $r1 in dataset('Region')
+				where $n1.n_regionkey = $r1.r_regionkey and $r1.r_name = 'AMERICA'
+			return {"n_nationkey": $n1.n_nationkey}
+		)
+		where $c.c_nationkey = $nr.n_nationkey
+		return {"c_custkey": $c.c_custkey}
+	)
+	where $nrc.c_custkey = $o.o_custkey
+	return {
+		"o_orderdate" : $o.o_orderdate, 
+		"o_orderkey": $o.o_orderkey 
+	}
+)
+where $l.l_orderkey = $nrco.o_orderkey and $nrco.o_orderdate >= '1995-01-01' 
+                         and $nrco.o_orderdate < '1996-12-31'
+return {
+  "o_orderdate": $nrco.o_orderdate, 
+  "l_partkey": $l.l_partkey, 
+  "l_discount": $l.l_discount, 
+  "l_extendedprice": $l.l_extendedprice, 
+  "l_suppkey": $l.l_suppkey
+})
+for $p in dataset("Part")
+where $p.p_partkey = $lnrco.l_partkey and $p.p_type = 'ECONOMY ANODIZED STEEL'
+return {
+	"o_orderdate": $lnrco.o_orderdate, 
+	"l_discount": $lnrco.l_discount, 
+	"l_extendedprice": $lnrco.l_extendedprice, 
+	"l_suppkey": $lnrco.l_suppkey 
+}
+)
+where $s.s_suppkey = $lnrcop.l_suppkey
+return {
+	"o_orderdate": $lnrcop.o_orderdate, 
+	"l_discount": $lnrcop.l_discount, 
+	"l_extendedprice": $lnrcop.l_extendedprice, 
+	"l_suppkey": $lnrcop.l_suppkey, 
+	"s_nationkey": $s.s_nationkey
+})
+
+for $n2 in dataset('Nation')
+where $slnrcop.s_nationkey = $n2.n_nationkey
+let $o_year := year($slnrcop.o_orderdate)
+return {
+  "year": $o_year,
+  "revenue": $slnrcop.l_extendedprice *(1-$slnrcop.l_discount),
+  "s_name": $n2.n_name
+})
+group by $year := $t.year with $t
+order by $year
+return {
+	"year": $year,
+	"mkt_share":sum(for $i in $t return switch-case($i.s_name='BRAZIL', true, $i.revenue, false, 0.0))/ 
+				sum(for $i in $t return $i.revenue)
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt.aql
deleted file mode 100644
index 9d83747..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt.aql
+++ /dev/null
@@ -1,184 +0,0 @@
-drop dataverse tpch if exists;
-create dataverse tpch;
-  
-
-use dataverse tpch;
-
-create type LineItemType as closed {
-  l_orderkey: int32, 
-  l_partkey: int32, 
-  l_suppkey: int32, 
-  l_linenumber: int32, 
-  l_quantity: int32, 
-  l_extendedprice: double,
-  l_discount: double, 
-  l_tax: double,
-  l_returnflag: string, 
-  l_linestatus: string, 
-  l_shipdate: string,
-  l_commitdate: string, 
-  l_receiptdate: string, 
-  l_shipinstruct: string, 
-  l_shipmode: string, 
-  l_comment: string
-}
-
-create type OrderType as closed {
-  o_orderkey: int32, 
-  o_custkey: int32, 
-  o_orderstatus: string, 
-  o_totalprice: double, 
-  o_orderdate: string, 
-  o_orderpriority: string,
-  o_clerk: string, 
-  o_shippriority: int32, 
-  o_comment: string
-}
-
-create type CustomerType as closed {
-  c_custkey: int32, 
-  c_name: string, 
-  c_address: string, 
-  c_nationkey: int32, 
-  c_phone: string, 
-  c_acctbal: double, 
-  c_mktsegment: string,
-  c_comment: string
-}
-
-create type SupplierType as closed {
-  s_suppkey: int32, 
-  s_name: string,
-  s_address: string,
-  s_nationkey: int32,
-  s_phone: string,
-  s_acctbal: double,
-  s_comment: string
-}
-
-create type NationType as closed {
-  n_nationkey: int32,
-  n_name: string,
-  n_regionkey: int32,
-  n_comment: string
-}
-
-create type RegionType as closed {
-	r_regionkey: int32, 
-	r_name: string, 
-	r_comment: string
-} 
-
-create type PartType as closed {
-  p_partkey: int32, 
-  p_name: string, 
-  p_mfgr: string,
-  p_brand: string,
-  p_type: string,
-  p_size: int32,
-  p_container: string,
-  p_retailprice: double,
-  p_comment: string
-}
-
-create type PartSuppType as closed {
-  ps_partkey: int32, 
-  ps_suppkey: int32,
-  ps_availqty: int32,
-  ps_supplycost: double,
-  ps_comment: string 
-}
-
-create nodegroup group1  if not exists on nc1, nc2;
-
-create dataset LineItem(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
-create dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
-create dataset Supplier(SupplierType)
-  partitioned by key s_suppkey on group1;
-create dataset Region(RegionType) 
-  partitioned by key r_regionkey on group1;
-create dataset Nation(NationType) 
-  partitioned by key n_nationkey on group1;
-create dataset Part(PartType)
-  partitioned by key p_partkey on group1;
-create dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
-create dataset Customer(CustomerType) 
-  partitioned by key c_custkey on group1;
-
-load dataset LineItem 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Orders 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Supplier 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Region 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Nation 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Part 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset PartSupp 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-load dataset Customer 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
-
-  
-write output to nc1:"rttest/tpch_q9_product_type_profit_nt.adm";
-
-                
-for $profit in 
-(  for $o in dataset('Orders')
-   for $l3 in 
-   (  for $p in dataset('Part')
-      for $l2 in 
-      (  for $ps in dataset('PartSupp')
-         for $l1 in 
-        (  for $s1 in
-            (  for $s in dataset('Supplier')
-               for $n in dataset('Nation')
-               where $n.n_nationkey = $s.s_nationkey
-               return 
-                 { "s_suppkey": $s.s_suppkey, "n_name": $n.n_name}  )
-            for $l in dataset('LineItem')
-            where $s1.s_suppkey = $l.l_suppkey       
-            return 
-              { "l_suppkey": $l.l_suppkey, "l_extendedprice": $l.l_extendedprice, "l_discount": $l.l_discount,
-                "l_quantity": $l.l_quantity, "l_partkey": $l.l_partkey, "l_orderkey": $l.l_orderkey, "n_name": $s1.n_name } )
-         where $ps.ps_suppkey = $l1.l_suppkey and $ps.ps_partkey = $l1.l_partkey       
-         return 
-           { "l_extendedprice": $l1.l_extendedprice, "l_discount": $l1.l_discount, "l_quantity": $l1.l_quantity, 
-             "l_partkey": $l1.l_partkey, "l_orderkey": $l1.l_orderkey, "n_name": $l1.n_name, "ps_supplycost": $ps.ps_supplycost }  )
-      where contains($p.p_name, 'green') and $p.p_partkey = $l2.l_partkey    
-      return 
-        { "l_extendedprice": $l2.l_extendedprice, "l_discount": $l2.l_discount, "l_quantity": $l2.l_quantity, 
-          "l_orderkey": $l2.l_orderkey, "n_name": $l2.n_name, "ps_supplycost": $l2.ps_supplycost  }  )
-   where $o.o_orderkey = $l3.l_orderkey
-   let $amount := $l3.l_extendedprice * (1 - $l3.l_discount) -  $l3.ps_supplycost * $l3.l_quantity 
-   let $o_year := year($o.o_orderdate)
-   return 
-     { "nation": $l3.n_name, "o_year": $o_year, "amount": $amount }  )
- group by $nation := $profit.nation, $o_year := $profit.o_year with $profit
- order by $nation, $o_year desc
- return 
-   { "nation": $nation, 
-     "o_year": $o_year, 
-      "sum_profit": sum( for $pr in $profit return $pr.amount )  }    
-   
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.1.ddl.aql
new file mode 100644
index 0000000..c7fbbc6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.1.ddl.aql
@@ -0,0 +1,107 @@
+drop dataverse tpch if exists;
+create dataverse tpch;
+
+use dataverse tpch;
+
+create type LineItemType as closed {
+  l_orderkey: int32, 
+  l_partkey: int32, 
+  l_suppkey: int32, 
+  l_linenumber: int32, 
+  l_quantity: int32, 
+  l_extendedprice: double,
+  l_discount: double, 
+  l_tax: double,
+  l_returnflag: string, 
+  l_linestatus: string, 
+  l_shipdate: string,
+  l_commitdate: string, 
+  l_receiptdate: string, 
+  l_shipinstruct: string, 
+  l_shipmode: string, 
+  l_comment: string
+}
+
+create type OrderType as closed {
+  o_orderkey: int32, 
+  o_custkey: int32, 
+  o_orderstatus: string, 
+  o_totalprice: double, 
+  o_orderdate: string, 
+  o_orderpriority: string,
+  o_clerk: string, 
+  o_shippriority: int32, 
+  o_comment: string
+}
+
+create type CustomerType as closed {
+  c_custkey: int32, 
+  c_name: string, 
+  c_address: string, 
+  c_nationkey: int32, 
+  c_phone: string, 
+  c_acctbal: double, 
+  c_mktsegment: string,
+  c_comment: string
+}
+
+create type SupplierType as closed {
+  s_suppkey: int32, 
+  s_name: string,
+  s_address: string,
+  s_nationkey: int32,
+  s_phone: string,
+  s_acctbal: double,
+  s_comment: string
+}
+
+create type NationType as closed {
+  n_nationkey: int32,
+  n_name: string,
+  n_regionkey: int32,
+  n_comment: string
+}
+
+create type RegionType as closed {
+	r_regionkey: int32, 
+	r_name: string, 
+	r_comment: string
+} 
+
+create type PartType as closed {
+  p_partkey: int32, 
+  p_name: string, 
+  p_mfgr: string,
+  p_brand: string,
+  p_type: string,
+  p_size: int32,
+  p_container: string,
+  p_retailprice: double,
+  p_comment: string
+}
+
+create type PartSuppType as closed {
+  ps_partkey: int32, 
+  ps_suppkey: int32,
+  ps_availqty: int32,
+  ps_supplycost: double,
+  ps_comment: string 
+}
+
+create dataset LineItem(LineItemType)
+  primary key l_orderkey, l_linenumber;
+create dataset Orders(OrderType)
+  primary key o_orderkey;
+create dataset Supplier(SupplierType)
+  primary key s_suppkey;
+create dataset Region(RegionType) 
+  primary key r_regionkey;
+create dataset Nation(NationType) 
+  primary key n_nationkey;
+create dataset Part(PartType)
+  primary key p_partkey;
+create dataset PartSupp(PartSuppType)
+  primary key ps_partkey, ps_suppkey;  
+create dataset Customer(CustomerType) 
+  primary key c_custkey;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.2.update.aql
new file mode 100644
index 0000000..c68e0af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.2.update.aql
@@ -0,0 +1,34 @@
+use dataverse tpch;
+
+load dataset LineItem 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Orders 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/orders.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Supplier 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/supplier.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Region 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/region.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Nation 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/nation.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Part 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/part.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset PartSupp 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/partsupp.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
+load dataset Customer 
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tpch0.001/customer.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.3.query.aql
new file mode 100644
index 0000000..bd6457c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.3.query.aql
@@ -0,0 +1,40 @@
+use dataverse tpch;
+                
+for $profit in 
+(  for $o in dataset('Orders')
+   for $l3 in 
+   (  for $p in dataset('Part')
+      for $l2 in 
+      (  for $ps in dataset('PartSupp')
+         for $l1 in 
+        (  for $s1 in
+            (  for $s in dataset('Supplier')
+               for $n in dataset('Nation')
+               where $n.n_nationkey = $s.s_nationkey
+               return 
+                 { "s_suppkey": $s.s_suppkey, "n_name": $n.n_name}  )
+            for $l in dataset('LineItem')
+            where $s1.s_suppkey = $l.l_suppkey       
+            return 
+              { "l_suppkey": $l.l_suppkey, "l_extendedprice": $l.l_extendedprice, "l_discount": $l.l_discount,
+                "l_quantity": $l.l_quantity, "l_partkey": $l.l_partkey, "l_orderkey": $l.l_orderkey, "n_name": $s1.n_name } )
+         where $ps.ps_suppkey = $l1.l_suppkey and $ps.ps_partkey = $l1.l_partkey       
+         return 
+           { "l_extendedprice": $l1.l_extendedprice, "l_discount": $l1.l_discount, "l_quantity": $l1.l_quantity, 
+             "l_partkey": $l1.l_partkey, "l_orderkey": $l1.l_orderkey, "n_name": $l1.n_name, "ps_supplycost": $ps.ps_supplycost }  )
+      where contains($p.p_name, 'green') and $p.p_partkey = $l2.l_partkey    
+      return 
+        { "l_extendedprice": $l2.l_extendedprice, "l_discount": $l2.l_discount, "l_quantity": $l2.l_quantity, 
+          "l_orderkey": $l2.l_orderkey, "n_name": $l2.n_name, "ps_supplycost": $l2.ps_supplycost  }  )
+   where $o.o_orderkey = $l3.l_orderkey
+   let $amount := $l3.l_extendedprice * (1 - $l3.l_discount) -  $l3.ps_supplycost * $l3.l_quantity 
+   let $o_year := year($o.o_orderdate)
+   return 
+     { "nation": $l3.n_name, "o_year": $o_year, "amount": $amount }  )
+ group by $nation := $profit.nation, $o_year := $profit.o_year with $profit
+ order by $nation, $o_year desc
+ return 
+   { "nation": $nation, 
+     "o_year": $o_year, 
+      "sum_profit": sum( for $pr in $profit return $pr.amount )  }    
+   
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.1.ddl.aql
new file mode 100644
index 0000000..e49225c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.1.ddl.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Invoke a built-in function with incorrect number of arguments
+ * Expected Res : Failure
+ * Date         : Nov 13th 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.2.update.aql
new file mode 100644
index 0000000..3a64f98
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Invoke a built-in function with incorrect number of arguments
+ * Expected Res : Failure
+ * Date         : Nov 13th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.3.query.aql
new file mode 100644
index 0000000..dbc01cc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/f01/f01.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Invoke a built-in function with incorrect number of arguments
+ * Expected Res : Failure
+ * Date         : Nov 13th 2012
+ */
+
+
+use dataverse test;
+
+let $c1 := int8()
+return $c1
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.1.ddl.aql
new file mode 100644
index 0000000..1290600
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue201
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=201
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.2.update.aql
new file mode 100644
index 0000000..31d1bb3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue201
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=201
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.3.query.aql
new file mode 100644
index 0000000..6dc27e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue201/query-issue201.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : This test case is to verify the fix for issue201
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=201
+ * Expected Res : Success
+ * Date         : 26th November 2012
+ */
+
+
+let $x:=range(1,100)
+for $i in $x
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.1.ddl.aql
new file mode 100644
index 0000000..1a4483e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description  : Pass an ordered list as input to UDF
+ *              : and return that ordered list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($list){
+$list
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.2.update.aql
new file mode 100644
index 0000000..f3255c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Pass an ordered list as input to UDF
+ *              : and return that ordered list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.3.query.aql
new file mode 100644
index 0000000..3191683
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf01/udf01.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Pass an ordered list as input to UDF
+ *              : and return that ordered list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+for $a in [1,2,3,4,5,6,7,8,9,10]
+return test.echo($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.1.ddl.aql
new file mode 100644
index 0000000..e149c07
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.1.ddl.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.getFirst($list){
+$list[0]
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.2.update.aql
new file mode 100644
index 0000000..652d06a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.3.query.aql
new file mode 100644
index 0000000..3e550c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf02/udf02.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+for $a in [[1,2],[3,4]]
+return test.getFirst($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.1.ddl.aql
new file mode 100644
index 0000000..2bcbfab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ * Ignored      : Not part of test build due to Issue 200
+ */
+
+// This test is returning NPE... Issue 200 
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($list){
+$list
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.2.update.aql
new file mode 100644
index 0000000..1ea43e0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ * Ignored      : Not part of test build due to Issue 200
+ */
+
+// This test is returning NPE... Issue 200 
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.3.query.aql
new file mode 100644
index 0000000..5c135c3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf03/udf03.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Pass an ordered list as input to UDF and return the zeroth element of that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ * Ignored      : Not part of test build due to Issue 200
+ */
+
+// This test is returning NPE... Issue 200 
+
+use dataverse test;
+
+for $a in [[1,2],["A","B"],["UCLA","UCSD","UCR","UCI"]]
+return test.echo($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.1.ddl.aql
new file mode 100644
index 0000000..6bcfd05
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.1.ddl.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Pass as input an ordered list of Records as input to UDF and return the list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($list){
+$list
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.2.update.aql
new file mode 100644
index 0000000..ad89936
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Pass as input an ordered list of Records as input to UDF and return the list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.3.query.aql
new file mode 100644
index 0000000..d166e81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf04/udf04.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Pass as input an ordered list of Records as input to UDF and return the list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+for $a in [{"name":"John","age":45,"id":123},{"name":"Jim","age":55,"id":103},{"name":"Bill","age":35,"id":125}]
+return test.echo($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.1.ddl.aql
new file mode 100644
index 0000000..02b0cdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.1.ddl.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Create UDF and bind its return value to a variable and return that variable
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create function test.echo($a){
+$a
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.2.update.aql
new file mode 100644
index 0000000..1a6845d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF and bind its return value to a variable and return that variable
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.3.query.aql
new file mode 100644
index 0000000..71b592d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf05/udf05.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF and bind its return value to a variable and return that variable
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+use dataverse test;
+
+let $b:=1234
+return test.echo($b)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.1.ddl.aql
new file mode 100644
index 0000000..fa094ed
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Pass input of type double to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($a){
+$a
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.2.update.aql
new file mode 100644
index 0000000..dc16bfc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Pass input of type double to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.3.query.aql
new file mode 100644
index 0000000..ba130dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf06/udf06.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Pass input of type double to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+let $b:=1234.1
+return test.echo($b)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.1.ddl.aql
new file mode 100644
index 0000000..518a6f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Pass value of type float to UDF
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($a){
+$a
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.2.update.aql
new file mode 100644
index 0000000..23a19e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Pass value of type float to UDF
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.3.query.aql
new file mode 100644
index 0000000..f4edd80
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf07/udf07.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Pass value of type float to UDF
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+use dataverse test;
+
+let $b:=1234.1f
+return test.echo($b)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.1.ddl.aql
new file mode 100644
index 0000000..5b41ce3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Pass a sting as input to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($a){
+$a
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.2.update.aql
new file mode 100644
index 0000000..524b312
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Pass a sting as input to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.3.query.aql
new file mode 100644
index 0000000..168228d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf08/udf08.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Pass a sting as input to UDF
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+let $a:="This is a test string"
+return test.echo($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.1.ddl.aql
new file mode 100644
index 0000000..b485a1c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Create UDF to read from internal dataset 
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create type test.TestType as open {
+id : int32
+}
+
+create dataset test.t1(TestType) primary key id;
+
+create function test.readDataset($a) {
+$a
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.2.update.aql
new file mode 100644
index 0000000..1196ae7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.2.update.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : Create UDF to read from internal dataset 
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+use dataverse test;
+
+insert into dataset test.t1({"id":345});
+insert into dataset test.t1({"id":315});
+insert into dataset test.t1({"id":245});
+insert into dataset test.t1({"id":385});
+insert into dataset test.t1({"id":241});
+insert into dataset test.t1({"id":745});
+insert into dataset test.t1({"id":349});
+insert into dataset test.t1({"id":845});
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.3.query.aql
new file mode 100644
index 0000000..bbe89e6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf09/udf09.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF to read from internal dataset 
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+use dataverse test;
+   
+test.readDataset(for $a in dataset('test.t1') order by $a.id return $a);
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.1.ddl.aql
new file mode 100644
index 0000000..1ac5132
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF and pass an unordered list as input and return that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.echo($uolist){
+$uolist
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.2.update.aql
new file mode 100644
index 0000000..3ba2d37
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF and pass an unordered list as input and return that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.3.query.aql
new file mode 100644
index 0000000..baad7a8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf10/udf10.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF and pass an unordered list as input and return that list.
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+let $a:={{"this is optional data","this is extra data","open types are good"}}
+return test.echo($a)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.1.ddl.aql
new file mode 100644
index 0000000..6197e3b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to return ordered list of integers
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.OList(){
+[1,2,3,4,5,6,7,8,9,10]
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.2.update.aql
new file mode 100644
index 0000000..42148fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create UDF to return ordered list of integers
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.3.query.aql
new file mode 100644
index 0000000..89019d0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf11/udf11.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF to return ordered list of integers
+ * Expected Res : Success
+ * Date         : Sep 4th 2012
+ */
+
+use dataverse test;
+
+for $a in test.OList()
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.1.ddl.aql
new file mode 100644
index 0000000..f158210
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to add two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.foo($a,$b) {
+$a+$b
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.2.update.aql
new file mode 100644
index 0000000..b011718
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF to add two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.3.query.aql
new file mode 100644
index 0000000..8d993e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf12/udf12.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF to add two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+test.foo(100,200)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.1.ddl.aql
new file mode 100644
index 0000000..1e88934
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to subtract two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.foo($a,$b) {
+$a - $b
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.2.update.aql
new file mode 100644
index 0000000..4ce8c6d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF to subtract two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.3.query.aql
new file mode 100644
index 0000000..f92eeb9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf13/udf13.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF to subtract two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+test.foo(400,200)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.1.ddl.aql
new file mode 100644
index 0000000..0e034d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to multiply two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.foo($a,$b) {
+$a*$b
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.2.update.aql
new file mode 100644
index 0000000..63c1ba4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF to multiply two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.3.query.aql
new file mode 100644
index 0000000..5b89d75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf14/udf14.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF to multiply two integers
+ * Expected Res : Success
+ * Date         : 4th September 2012
+ */
+
+use dataverse test;
+
+test.foo(400,200)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.1.ddl.aql
new file mode 100644
index 0000000..4ea1733
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : Create UDF that returns a heterogeneous ordered list
+ *              : invoke the UDF in the FOR expression of FLWOR
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ * Ignored      : Not part of current tests because of Issue 200
+ */
+
+// this test resturns NPE:Issue 166
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.OList2(){
+[[1,2,3,4,5,6,7,8,9,10],["a","b","c","d","e","f","g","h","y"]]
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.2.update.aql
new file mode 100644
index 0000000..8328535
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF that returns a heterogeneous ordered list
+ *              : invoke the UDF in the FOR expression of FLWOR
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ * Ignored      : Not part of current tests because of Issue 200
+ */
+
+// this test resturns NPE:Issue 166
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.3.query.aql
new file mode 100644
index 0000000..5d4ab28
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf15/udf15.3.query.aql
@@ -0,0 +1,14 @@
+/*
+ * Description  : Create UDF that returns a heterogeneous ordered list
+ *              : invoke the UDF in the FOR expression of FLWOR
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ * Ignored      : Not part of current tests because of Issue 200
+ */
+
+// this test resturns NPE:Issue 166
+
+use dataverse test;
+
+for $a in test.OList2()
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.1.ddl.aql
new file mode 100644
index 0000000..0c90307
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+ * Description  : Create UDF that returns string
+ *              : compute the string lenght of the string
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.fn02(){
+"Welcome to the world of Asterix"
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.2.update.aql
new file mode 100644
index 0000000..86e9b8c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create UDF that returns string
+ *              : compute the string lenght of the string
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.3.query.aql
new file mode 100644
index 0000000..3537503
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf16/udf16.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF that returns string
+ *              : compute the string lenght of the string
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+let $str := test.fn02()
+return string-length($str)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.1.ddl.aql
new file mode 100644
index 0000000..ade9f42
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Create UDF and invoke it from another UDF and 
+ *              : child UDF returns a string to the parent.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.parent(){
+test.child()
+}
+
+create function test.child() {
+"This data is from the child function"
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.2.update.aql
new file mode 100644
index 0000000..936919d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create UDF and invoke it from another UDF and 
+ *              : child UDF returns a string to the parent.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.3.query.aql
new file mode 100644
index 0000000..92cbf55
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf17/udf17.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF and invoke it from another UDF and 
+ *              : child UDF returns a string to the parent.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+let $str := test.parent()
+return $str
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.1.ddl.aql
new file mode 100644
index 0000000..a887282
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF and invoke the UDF from with in asterix built-in function
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.fn06(){
+false
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.2.update.aql
new file mode 100644
index 0000000..ad2eee1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF and invoke the UDF from with in asterix built-in function
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.3.query.aql
new file mode 100644
index 0000000..0bdf0e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf18/udf18.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF and invoke the UDF from with in asterix built-in function
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+let $val := not(test.fn06())
+return $val
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.1.ddl.aql
new file mode 100644
index 0000000..e8695d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.pie(){
+3.14
+}
+
+create function test.area($radius){
+test.pie() * $radius * $radius
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.2.update.aql
new file mode 100644
index 0000000..a209919
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.3.query.aql
new file mode 100644
index 0000000..ccbd0b1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf19/udf19.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+for $a in [2,4,6,8,10,12]
+where test.area($a) > 100
+return test.area($a)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.1.ddl.aql
new file mode 100644
index 0000000..cf1b5d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.1.ddl.aql
@@ -0,0 +1,20 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.pie(){
+3.14
+}
+
+create function test.area($radius){
+test.pie() * $radius * $radius
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.2.update.aql
new file mode 100644
index 0000000..1b0856e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.3.query.aql
new file mode 100644
index 0000000..3f88d6d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf20/udf20.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create UDF and invoke in the WHERE clause of FLWOR expression
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+
+use dataverse test;
+
+for $a in [2,4,6,8,10,12]
+where test.area($a) > 100
+return { "radius" : $a,"area" : test.area($a) }
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.1.ddl.aql
new file mode 100644
index 0000000..bc0e5cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to verify if input is odd
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.isOdd($b){
+$b%2 != 0
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.2.update.aql
new file mode 100644
index 0000000..a186d5e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF to verify if input is odd
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.3.query.aql
new file mode 100644
index 0000000..5b9066d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf21/udf21.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF to verify if input is odd
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+for $a in [10,20,2,30,4,3,6,44,5,7,9,1,13,17,992,19,40,50,60,25,45,65,75]
+where test.isOdd($a)
+return $a
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.1.ddl.aql
new file mode 100644
index 0000000..97ad3b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF to concatenate two input strings.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.getFullName($fname,$lname){
+string-concat([$fname,$lname])
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.2.update.aql
new file mode 100644
index 0000000..2af21f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF to concatenate two input strings.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.3.query.aql
new file mode 100644
index 0000000..60e52ca
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf22/udf22.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF to concatenate two input strings.
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+
+let $fn := "Bob"
+let $ln := "Harbus"
+return test.getFullName($fn,$ln)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.1.ddl.aql
new file mode 100644
index 0000000..864b697
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF and invoke it in limit clause
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.numRows(){
+6
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.2.update.aql
new file mode 100644
index 0000000..9c2b7f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.2.update.aql
@@ -0,0 +1,6 @@
+/*
+ * Description  : Create UDF and invoke it in limit clause
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.3.query.aql
new file mode 100644
index 0000000..f43c299
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf23/udf23.3.query.aql
@@ -0,0 +1,11 @@
+/*
+ * Description  : Create UDF and invoke it in limit clause
+ * Expected Res : Success
+ * Date         : Sep 5th 2012
+ */
+
+use dataverse test;
+   
+for $l in dataset('Metadata.Dataset')
+limit test.numRows()
+return $l
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.1.ddl.aql
new file mode 100644
index 0000000..3c8fc04
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : Create UDF that returns a range
+ * Expected Res : Success
+ * Date         : Sep 5 2012
+ * Ignored      : Not part of current test build because of Issue 201
+ */
+
+// Returns java.lang.ClassCastException : Issue 195
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.myRangeFn($n)
+{
+   range(1,$n)
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.2.update.aql
new file mode 100644
index 0000000..fc6a252
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.2.update.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF that returns a range
+ * Expected Res : Success
+ * Date         : Sep 5 2012
+ * Ignored      : Not part of current test build because of Issue 201
+ */
+
+// Returns java.lang.ClassCastException : Issue 195
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.3.query.aql
new file mode 100644
index 0000000..4e85a92
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf24/udf24.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create UDF that returns a range
+ * Expected Res : Success
+ * Date         : Sep 5 2012
+ * Ignored      : Not part of current test build because of Issue 201
+ */
+
+// Returns java.lang.ClassCastException : Issue 195
+
+use dataverse test;
+
+for $i in test.myRangeFn(100)
+return $i
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.1.ddl.aql
new file mode 100644
index 0000000..174b3c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.1.ddl.aql
@@ -0,0 +1,21 @@
+/*
+ * Description  : Create UDF and invoke with negative inputs.
+ * Expected Res : Failure
+ * Date         : 5th Sep 2012
+ */
+
+// This one returns NPE...
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.computeBonus($pbcRating,$salary)
+{
+   if ($pbcRating = 1) then
+        $salary * 0.25
+   else
+        $salary * 0.10
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.2.update.aql
new file mode 100644
index 0000000..13118c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.2.update.aql
@@ -0,0 +1,8 @@
+/*
+ * Description  : Create UDF and invoke with negative inputs.
+ * Expected Res : Failure
+ * Date         : 5th Sep 2012
+ */
+
+// This one returns NPE...
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.3.query.aql
new file mode 100644
index 0000000..f2b1bc1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf25/udf25.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : Create UDF and invoke with negative inputs.
+ * Expected Res : Failure
+ * Date         : 5th Sep 2012
+ */
+
+// This one returns NPE...
+
+use dataverse test;
+
+test.computeBonus(-1,-1)
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.1.ddl.aql
new file mode 100644
index 0000000..3e0cf76
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.1.ddl.aql
@@ -0,0 +1,15 @@
+/*
+ * Description  : Create UDF and define with missing references.
+ * Expected Res : Failure
+ * Date         : Sep 6th 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.needs_f1($x){
+ $x + f1()
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.2.update.aql
new file mode 100644
index 0000000..58cfb49
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : Create UDF and define with missing references.
+ * Expected Res : Failure
+ * Date         : Sep 6th 2012
+ */
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.3.query.aql
new file mode 100644
index 0000000..686b261
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf26/udf26.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : Create UDF and define with missing references.
+ * Expected Res : Failure
+ * Date         : Sep 6th 2012
+ */
+
+use dataverse test;
+
+test.needs_f1(12345)
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.1.ddl.aql
new file mode 100644
index 0000000..8e46ca9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : Create UDF and invoke UDF from a quantified expression
+ * Expected Res : Success
+ * Date         : Sep 6th 2012
+ */
+
+// this test is not giving expected results.
+// issue 194 reported to track this
+
+drop dataverse test if exists;
+create dataverse test;
+
+use dataverse test;
+
+create function test.f1(){
+100
+}
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.2.update.aql
new file mode 100644
index 0000000..57b59fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : Create UDF and invoke UDF from a quantified expression
+ * Expected Res : Success
+ * Date         : Sep 6th 2012
+ */
+
+// this test is not giving expected results.
+// issue 194 reported to track this
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.3.query.aql
new file mode 100644
index 0000000..50a1cb2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/udf27/udf27.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : Create UDF and invoke UDF from a quantified expression
+ * Expected Res : Success
+ * Date         : Sep 6th 2012
+ */
+
+// this test is not giving expected results.
+// issue 194 reported to track this
+
+use dataverse test;
+
+let $a := true
+return some $i in [100,200] satisfies test.f1()
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/print_01.aql b/asterix-app/src/test/resources/runtimets/queries/writers/print_01.aql
deleted file mode 100644
index dcdc3ee..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/writers/print_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/writers_print_01.adm" using "edu.uci.ics.hyracks.algebricks.core.algebra.runtime.writers.PrinterBasedWriterFactory";
-
-for $x in ["foo", "bar"]
-return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.2.update.aql
new file mode 100644
index 0000000..139597f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.2.update.aql
@@ -0,0 +1,2 @@
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.3.query.aql
new file mode 100644
index 0000000..9af03ea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/writers/print_01/print_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x in ["foo", "bar"]
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01.aql b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01.aql
deleted file mode 100644
index fd35a0f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-drop dataverse test if exists;
-
-create dataverse test;
-
-use dataverse test;
-
-write output to nc1:"rttest/writers_serialized_01.adm" using "edu.uci.ics.hyracks.algebricks.core.algebra.runtime.writers.SerializedDataWriterFactory";
-
-for $x in ["foo", "bar"]
-return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.1.ddl.aql
new file mode 100644
index 0000000..97b4670
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.1.ddl.aql
@@ -0,0 +1,4 @@
+drop dataverse test if exists;
+
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/only.txt b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.2.update.aql
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/only.txt
copy to asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.3.query.aql
new file mode 100644
index 0000000..9af03ea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/writers/serialized_01/serialized_01.3.query.aql
@@ -0,0 +1,4 @@
+use dataverse test;
+
+for $x in ["foo", "bar"]
+return $x
diff --git a/asterix-app/src/test/resources/runtimets/queries/year_01.aql b/asterix-app/src/test/resources/runtimets/queries/year_01.aql
deleted file mode 100644
index da93e96..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/year_01.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-
-write output to nc1:"rttest/year_01.adm";
-
-year("1996-12-01")
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double/avg_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/avg_double/avg_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null/avg_double_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null/avg_double_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_empty_01/avg_empty_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/avg_empty_01/avg_empty_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_empty_02/avg_empty_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_empty_02/avg_empty_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float.adm
deleted file mode 100644
index 7d61c83..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float.adm
+++ /dev/null
@@ -1 +0,0 @@
-2.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float/avg_float.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_float/avg_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float_null.adm
deleted file mode 100644
index a957d23..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "average": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_float_null/avg_float_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/avg_float_null/avg_float_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16.adm
deleted file mode 100644
index 7d61c83..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16.adm
+++ /dev/null
@@ -1 +0,0 @@
-2.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16/avg_int16.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16/avg_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16_null.adm
deleted file mode 100644
index a957d23..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "average": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16_null/avg_int16_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int16_null/avg_int16_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32.adm
deleted file mode 100644
index 7d61c83..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32.adm
+++ /dev/null
@@ -1 +0,0 @@
-2.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32/avg_int32.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32/avg_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32_null.adm
deleted file mode 100644
index a957d23..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "average": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32_null/avg_int32_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int32_null/avg_int32_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64.adm
deleted file mode 100644
index 7d61c83..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64.adm
+++ /dev/null
@@ -1 +0,0 @@
-2.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64/avg_int64.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64/avg_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64_null.adm
deleted file mode 100644
index a957d23..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "average": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64_null/avg_int64_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int64_null/avg_int64_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8.adm
deleted file mode 100644
index 7d61c83..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8.adm
+++ /dev/null
@@ -1 +0,0 @@
-2.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8/avg_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8/avg_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8_null.adm
deleted file mode 100644
index a957d23..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "average": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8_null/avg_int8_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/avg_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/avg_int8_null/avg_int8_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/count_01.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/count_01/count_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/count_01.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/count_01/count_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_01/count_empty_01.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_01/count_empty_01.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_01/count_empty_01.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_02/count_empty_02.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_02/count_empty_02.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/count_empty_02/count_empty_02.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/count_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/count_null.adm
deleted file mode 100644
index df462fe..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/count_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/count_null/count_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/count_null/count_null.1.adm
new file mode 100644
index 0000000..51d5f4f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/count_null/count_null.1.adm
@@ -0,0 +1 @@
+{ "count": null }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01/global-avg_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_01/global-avg_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_null/global-avg_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_null.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/global-avg_null/global-avg_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double/local-avg_double.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double/local-avg_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null/local-avg_double_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null/local-avg_double_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double_null/local-avg_double_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float.adm
deleted file mode 100644
index 83e5c46..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": 6.0d, "count": 3 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float/local-avg_float.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float/local-avg_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null/local-avg_float_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null/local-avg_float_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_float_null/local-avg_float_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16.adm
deleted file mode 100644
index 83e5c46..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": 6.0d, "count": 3 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16/local-avg_int16.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16/local-avg_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null/local-avg_int16_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null/local-avg_int16_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int16_null/local-avg_int16_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32.adm
deleted file mode 100644
index 83e5c46..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": 6.0d, "count": 3 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32/local-avg_int32.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32/local-avg_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null/local-avg_int32_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null/local-avg_int32_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int32_null/local-avg_int32_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64.adm
deleted file mode 100644
index 83e5c46..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": 6.0d, "count": 3 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64/local-avg_int64.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64/local-avg_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null/local-avg_int64_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null/local-avg_int64_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int64_null/local-avg_int64_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8.adm
deleted file mode 100644
index 83e5c46..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": 6.0d, "count": 3 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8/local-avg_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_double.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8/local-avg_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null.adm
deleted file mode 100644
index 8649548..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "sum": null, "count": 2 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null/local-avg_int8_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null/local-avg_int8_null.1.adm
new file mode 100644
index 0000000..b11c820
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/local-avg_int8_null/local-avg_int8_null.1.adm
@@ -0,0 +1 @@
+{ "sum": null, "count": 1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/max_empty_01/max_empty_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/max_empty_01/max_empty_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/max_empty_02/max_empty_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/max_empty_02/max_empty_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/min_empty_01/min_empty_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/min_empty_01/min_empty_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/min_empty_02/min_empty_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/min_empty_02/min_empty_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg/scalar_avg.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg/scalar_avg.1.adm
new file mode 100644
index 0000000..483cb2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg/scalar_avg.1.adm
@@ -0,0 +1,6 @@
+2.0
+2.0
+2.0
+2.0
+2.0
+2.0
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg_empty/scalar_avg_empty.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg_empty/scalar_avg_empty.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg_null/scalar_avg_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg_null/scalar_avg_null.1.adm
new file mode 100644
index 0000000..0800a91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_avg_null/scalar_avg_null.1.adm
@@ -0,0 +1,6 @@
+null
+null
+null
+null
+null
+null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count/scalar_count.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count/scalar_count.1.adm
new file mode 100644
index 0000000..80f0b99
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count/scalar_count.1.adm
@@ -0,0 +1,7 @@
+3
+3
+3
+3
+3
+3
+3
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_empty/scalar_count_empty.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_empty/scalar_count_empty.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_empty/scalar_count_empty.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_null/scalar_count_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_null/scalar_count_null.1.adm
new file mode 100644
index 0000000..1abbc3f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_count_null/scalar_count_null.1.adm
@@ -0,0 +1,7 @@
+null
+null
+null
+null
+null
+null
+null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max/scalar_max.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max/scalar_max.1.adm
new file mode 100644
index 0000000..d420c2f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max/scalar_max.1.adm
@@ -0,0 +1,8 @@
+3i8
+3i16
+3
+3i64
+3.0f
+3.0d
+"world"
+datetime("2012-03-01T00:00:00.000Z")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max_empty/scalar_max_empty.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max_empty/scalar_max_empty.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max_null/scalar_max_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max_null/scalar_max_null.1.adm
new file mode 100644
index 0000000..c9f3cb3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_max_null/scalar_max_null.1.adm
@@ -0,0 +1,8 @@
+null
+null
+null
+null
+null
+null
+null
+null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min/scalar_min.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min/scalar_min.1.adm
new file mode 100644
index 0000000..6acf213
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min/scalar_min.1.adm
@@ -0,0 +1,8 @@
+1i8
+1i16
+1
+1i64
+1.0f
+1.0d
+"bar"
+datetime("2012-01-01T00:00:00.000Z")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min_empty/scalar_min_empty.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min_empty/scalar_min_empty.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min_null/scalar_min_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min_null/scalar_min_null.1.adm
new file mode 100644
index 0000000..c9f3cb3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_min_null/scalar_min_null.1.adm
@@ -0,0 +1,8 @@
+null
+null
+null
+null
+null
+null
+null
+null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum/scalar_sum.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum/scalar_sum.1.adm
new file mode 100644
index 0000000..6e7617e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum/scalar_sum.1.adm
@@ -0,0 +1,6 @@
+6i8
+6i16
+6
+6i64
+6.0f
+6.0d
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum_empty/scalar_sum_empty.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum_empty/scalar_sum_empty.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum_null/scalar_sum_null.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum_null/scalar_sum_null.1.adm
new file mode 100644
index 0000000..0800a91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/scalar_sum_null/scalar_sum_null.1.adm
@@ -0,0 +1,6 @@
+null
+null
+null
+null
+null
+null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double/sum_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_double/sum_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null/sum_double_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null/sum_double_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_empty_01/sum_empty_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_empty_01/sum_empty_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_empty_02/sum_empty_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_empty_02/sum_empty_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float/sum_float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_float.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_float/sum_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float_null.adm
deleted file mode 100644
index ec747fa..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_float_null/sum_float_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_float_null/sum_float_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16/sum_int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16/sum_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16_null.adm
deleted file mode 100644
index ec747fa..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16_null/sum_int16_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int16_null/sum_int16_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32/sum_int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32/sum_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32_null.adm
deleted file mode 100644
index ec747fa..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32_null/sum_int32_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int32_null/sum_int32_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64/sum_int64.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64/sum_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64_null.adm
deleted file mode 100644
index ec747fa..0000000
--- a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-null
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64_null/sum_int64_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int64_null/sum_int64_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8/sum_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8.adm
rename to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8/sum_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null/sum_int8_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null/sum_int8_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_null-with-pred/sum_null-with-pred.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_null-with-pred/sum_null-with-pred.1.adm
new file mode 100644
index 0000000..9e70369
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_null-with-pred/sum_null-with-pred.1.adm
@@ -0,0 +1 @@
+15000
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/sum_numeric_null/sum_numeric_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/aggregate/sum_numeric_null/sum_numeric_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/boolean/and_01.adm b/asterix-app/src/test/resources/runtimets/results/boolean/and_01/and_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/boolean/and_01.adm
rename to asterix-app/src/test/resources/runtimets/results/boolean/and_01/and_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/boolean/and_null.adm b/asterix-app/src/test/resources/runtimets/results/boolean/and_null/and_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/boolean/and_null.adm
rename to asterix-app/src/test/resources/runtimets/results/boolean/and_null/and_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/boolean/and_null_false.adm b/asterix-app/src/test/resources/runtimets/results/boolean/and_null_false.adm
deleted file mode 100644
index 02e4a84..0000000
--- a/asterix-app/src/test/resources/runtimets/results/boolean/and_null_false.adm
+++ /dev/null
@@ -1 +0,0 @@
-false
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/boolean/and_01.adm b/asterix-app/src/test/resources/runtimets/results/boolean/and_null_false/and_null_false.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/boolean/and_01.adm
copy to asterix-app/src/test/resources/runtimets/results/boolean/and_null_false/and_null_false.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/boolean/not_01.adm b/asterix-app/src/test/resources/runtimets/results/boolean/not_01/not_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/boolean/not_01.adm
rename to asterix-app/src/test/resources/runtimets/results/boolean/not_01/not_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/date_order/date_order.1.adm b/asterix-app/src/test/resources/runtimets/results/comparison/date_order/date_order.1.adm
new file mode 100644
index 0000000..3fd4c19
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/comparison/date_order/date_order.1.adm
@@ -0,0 +1,6 @@
+date("-0500-03-21")
+date("1362-02-28")
+date("1600-02-29")
+date("2012-02-29")
+date("2021-03-01")
+date("2049-04-23")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order.adm b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order.adm
deleted file mode 100644
index 14f3ab1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order.adm
+++ /dev/null
@@ -1,5 +0,0 @@
-datetime("2005-01-01T00:00:00:000+04:00")
-datetime("2012-01-01T00:00:00:000+00:00")
-datetime("2011-12-31T14:00:00:000-10:00")
-datetime("2011-12-31T13:00:00:000-11:00")
-datetime("2012-04-06T00:00:00:000+00:00")
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order/datetime_order.1.adm b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order/datetime_order.1.adm
new file mode 100644
index 0000000..21f8208
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_order/datetime_order.1.adm
@@ -0,0 +1,11 @@
+datetime("-1937-07-07T15:00:00.000Z")
+datetime("-1600-02-29T18:00:00.384Z")
+datetime("-1600-02-29T23:59:59.999Z")
+datetime("-1600-03-01T06:00:00.384Z")
+datetime("2000-02-29T18:59:59.999Z")
+datetime("2000-02-29T23:59:59.999Z")
+datetime("2004-12-31T20:00:00.000Z")
+datetime("2012-01-01T00:00:00.000Z")
+datetime("2012-01-01T00:00:00.000Z")
+datetime("2012-01-01T00:00:00.000Z")
+datetime("2012-04-06T00:00:00.000Z")
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_range/datetime_range.1.adm b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_range/datetime_range.1.adm
new file mode 100644
index 0000000..83e5173
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_range/datetime_range.1.adm
@@ -0,0 +1,890 @@
+{ "id": 21 }
+{ "id": 22 }
+{ "id": 23 }
+{ "id": 25 }
+{ "id": 29 }
+{ "id": 30 }
+{ "id": 31 }
+{ "id": 32 }
+{ "id": 33 }
+{ "id": 34 }
+{ "id": 35 }
+{ "id": 36 }
+{ "id": 37 }
+{ "id": 38 }
+{ "id": 39 }
+{ "id": 66 }
+{ "id": 67 }
+{ "id": 68 }
+{ "id": 77 }
+{ "id": 81 }
+{ "id": 82 }
+{ "id": 85 }
+{ "id": 86 }
+{ "id": 87 }
+{ "id": 96 }
+{ "id": 97 }
+{ "id": 98 }
+{ "id": 99 }
+{ "id": 100 }
+{ "id": 114 }
+{ "id": 115 }
+{ "id": 116 }
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+{ "id": 2463 }
+{ "id": 2465 }
+{ "id": 2466 }
+{ "id": 2467 }
+{ "id": 2470 }
+{ "id": 2471 }
+{ "id": 2488 }
+{ "id": 2489 }
+{ "id": 2490 }
+{ "id": 2491 }
+{ "id": 2492 }
+{ "id": 2493 }
+{ "id": 2494 }
+{ "id": 2495 }
+{ "id": 2496 }
+{ "id": 2532 }
+{ "id": 2533 }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq.adm b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq.adm
deleted file mode 100644
index 5dc225e..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ true ]
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq/datetime_tzeq.1.adm b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq/datetime_tzeq.1.adm
new file mode 100644
index 0000000..167bafb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/comparison/datetime_tzeq/datetime_tzeq.1.adm
@@ -0,0 +1 @@
+{ "result1": true, "result2": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double.adm b/asterix-app/src/test/resources/runtimets/results/comparison/double/double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/double.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/double/double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_gte_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/double_gte_01/double_gte_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/double_gte_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/double_gte_01/double_gte_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/double_null/double_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/double_null/double_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/eq_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/eq_01/eq_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/eq_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/eq_01/eq_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/float.adm b/asterix-app/src/test/resources/runtimets/results/comparison/float/float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/float.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/float/float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/float_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/float_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/float_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/float_null/float_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/float_null/float_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/gt_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/gt_01/gt_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/gt_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/gt_01/gt_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/gte_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/gte_01.adm
deleted file mode 100644
index 446a462..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/gte_01.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-3
-2
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/gt_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/gte_01/gte_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/gt_01.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/gte_01/gte_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int16.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int16/int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/int16.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/int16/int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int16_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int16_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/int16_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int16_null/int16_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/int16_null/int16_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int32.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int32/int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/int32.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/int32/int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int32_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int32_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/int32_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int32_null/int32_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/int32_null/int32_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int64.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int64/int64.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/int64.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/int64/int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int64_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int64_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/int64_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int64_null/int64_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/int64_null/int64_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int8.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int8.adm
deleted file mode 100644
index 6126426..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/int8.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": false, "result2": false, "result3": true, "result4": false, "result5": false, "result6": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int64.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int8/int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/int64.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/int8/int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int8_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int8_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/int8_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/int8_null/int8_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/int8_null/int8_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/lt_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/lt_01/lt_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/lt_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/lt_01/lt_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/lte_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/lte_01.adm
deleted file mode 100644
index 7a754f4..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/lte_01.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-1
-2
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/lt_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/lte_01/lte_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/lt_01.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/lte_01/lte_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/neq_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/neq_01/neq_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/neq_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/neq_01/neq_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/numeric-comparison_01.adm b/asterix-app/src/test/resources/runtimets/results/comparison/numeric-comparison_01/numeric-comparison_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/numeric-comparison_01.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/numeric-comparison_01/numeric-comparison_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/string.adm b/asterix-app/src/test/resources/runtimets/results/comparison/string/string.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/comparison/string.adm
rename to asterix-app/src/test/resources/runtimets/results/comparison/string/string.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/string_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/string_null.adm
deleted file mode 100644
index 9f32100..0000000
--- a/asterix-app/src/test/resources/runtimets/results/comparison/string_null.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "result1": null, "result2": null, "result3": null, "result4": null, "result5": null, "result6": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm b/asterix-app/src/test/resources/runtimets/results/comparison/string_null/string_null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/double_null.adm
copy to asterix-app/src/test/resources/runtimets/results/comparison/string_null/string_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/time_order/time_order.1.adm b/asterix-app/src/test/resources/runtimets/results/comparison/time_order/time_order.1.adm
new file mode 100644
index 0000000..c937bdd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/comparison/time_order/time_order.1.adm
@@ -0,0 +1,6 @@
+time("00:00:00.000Z")
+time("02:00:00.000Z")
+time("19:00:00.000Z")
+time("20:00:00.470Z")
+time("23:00:00.382Z")
+time("23:59:59.999Z")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm b/asterix-app/src/test/resources/runtimets/results/constructor/add-null/add-null.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/aggregate/sum_int8_null.adm
copy to asterix-app/src/test/resources/runtimets/results/constructor/add-null/add-null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/boolean_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/boolean_01/boolean_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/boolean_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/boolean_01/boolean_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/circle_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/circle_01/circle_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/circle_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/circle_01/circle_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/date_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/date_01.adm
deleted file mode 100644
index b0cb1e4..0000000
--- a/asterix-app/src/test/resources/runtimets/results/constructor/date_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "date1": date("2010-10-30+05:00"), "date2": date("2010-10-30-10:15"), "date3": date("1987-11-19+00:00"), "date4": date("1987-11-19+00:00"), "date5": date("-1987-11-19+08:30"), "date6": date("0001-12-27+00:00"), "date7": date("-1951-01-27-01:45") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/date_01/date_01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/date_01/date_01.1.adm
new file mode 100644
index 0000000..8a08a03
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/date_01/date_01.1.adm
@@ -0,0 +1 @@
+{ "date1": date("2010-10-30"), "date2": date("1987-11-19"), "date3": date("-1987-11-19"), "date4": date("0001-12-27"), "date5": date("-1951-12-27"), "date6": date("-2043-11-19"), "date7": date("-1928-03-29"), "date8": date("1928-03-29"), "date9": date("1900-02-28"), "date10": date("2000-02-29") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01.adm
deleted file mode 100644
index 30d2cdb..0000000
--- a/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "datetime1": datetime("2010-10-30T10:50:56:980+05:45"), "datetime2": datetime("2010-10-30T10:30:56:240-10:00"), "datetime3": datetime("1987-11-19T09:20:00:200+00:00"), "datetime4": datetime("1987-11-19T10:50:56:000+00:00"), "datetime5": datetime("-1987-11-19T10:50:56:080-05:30"), "datetime6": datetime("-0001-11-19T10:50:56:700+00:00"), "datetime7": datetime("1951-12-27T12:20:15:000+00:00") }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01/datetime_01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01/datetime_01.1.adm
new file mode 100644
index 0000000..fcd7b8c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/datetime_01/datetime_01.1.adm
@@ -0,0 +1 @@
+{ "datetime1": datetime("2010-10-30T05:05:56.999Z"), "datetime2": datetime("2010-10-30T20:30:56.250Z"), "datetime3": datetime("1987-11-19T09:20:00.200Z"), "datetime4": datetime("1987-11-19T10:50:56.000Z"), "datetime5": datetime("-1987-11-19T16:20:56.099Z"), "datetime6": datetime("-0001-11-19T10:50:56.719Z"), "datetime7": datetime("1951-12-27T12:20:15.000Z"), "datetime8": datetime("2043-11-19T10:50:56.719Z"), "datetime9": datetime("-1928-03-30T00:19:37.374Z"), "datetime10": datetime("-1928-03-29T11:19:37.374Z"), "datetime11": datetime("-1928-03-29T17:49:37.374Z"), "datetime12": datetime("-1928-03-29T11:19:37.374Z"), "datetime13": datetime("-1928-03-29T11:19:37.370Z"), "datetime14": datetime("-1928-02-29T23:19:37.370Z") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/double_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/double_01/double_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/double_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/double_01/double_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/duration_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/duration_01.adm
deleted file mode 100644
index b80ed1a..0000000
--- a/asterix-app/src/test/resources/runtimets/results/constructor/duration_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "duration1": duration("D30Y10M25DT13H12M50S"), "duration2": duration("D0Y0M25DT13H12M50S"), "duration3": duration("D0Y0M0DT13H12M50S"), "duration4": duration("D30Y0M0DT0H12M0S"), "duration5": duration("D0Y0M0DT13H0M0S"), "duration6": duration("-D30Y10M25DT13H12M50S"), "duration7": duration("-D0Y0M25DT13H12M50S"), "duration8": duration("-D0Y0M0DT13H0M50S") }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/duration_01/duration_01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/duration_01/duration_01.1.adm
new file mode 100644
index 0000000..f665d67
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/duration_01/duration_01.1.adm
@@ -0,0 +1 @@
+{ "duration1": duration("P30Y10M25DT13H12M50S"), "duration2": duration("P25DT13H12M50S"), "duration3": duration("PT13H12M50S"), "duration4": duration("P30YT12M"), "duration5": duration("PT13H"), "duration6": duration("-P30Y10M25DT13H12M50S"), "duration7": duration("-P25DT13H12M50S"), "duration8": duration("-PT13H50S"), "duration9": duration("P120D"), "duration10": duration("-P2Y4M"), "duration11": duration("PT30M30.937S"), "duration12": duration("P301Y3M72DT13H46M2.435S") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/float_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/float_01/float_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/float_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/float_01/float_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/int_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/int_01.adm
deleted file mode 100644
index f9a1203..0000000
--- a/asterix-app/src/test/resources/runtimets/results/constructor/int_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "int8": 80i8, "int16": 160i16, "int32": 320, "int64": 640i64, "int8": -80i8, "int16": -160i16, "int32": -320, "int64": -640i64 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/int_01/int_01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/int_01/int_01.1.adm
new file mode 100644
index 0000000..470d1f8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/int_01/int_01.1.adm
@@ -0,0 +1 @@
+{ "int8": 80i8, "int16": 160i16, "int32": 320, "int64": 640i64, "int8_2": -80i8, "int16_2": -160i16, "int32_2": -320, "int64_2": -640i64, "int64_min": -9223372036854775808i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/interval/interval.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/interval/interval.1.adm
new file mode 100644
index 0000000..893c3ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/interval/interval.1.adm
@@ -0,0 +1 @@
+{ "interval1": interval-date("2010-10-30, 2012-10-21"), "interval2": interval-time("14:04:05.678Z, 21:24:25.267Z"), "interval3": interval-datetime("-1987-11-18T18:43:57.938Z, 1999-11-12T19:49:35.948Z"), "interval4": interval-date("0001-12-27, 0006-01-27"), "interval5": interval-time("20:03:20.948Z, 20:57:50.886Z"), "interval6": interval-datetime("-2043-11-19T15:32:39.293Z, -1603-03-12T12:12:38.242Z") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/line_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/line_01/line_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/line_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/line_01/line_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/point_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/point_01/point_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/point_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/point_01/point_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/polygon_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/polygon_01/polygon_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/polygon_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/polygon_01/polygon_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/primitive-01/primitive-01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-01/primitive-01.1.adm
new file mode 100644
index 0000000..e4f0501
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-01/primitive-01.1.adm
@@ -0,0 +1 @@
+{ "$a": -127i8, "$b": 127i8, "$c": 0i8, "$d": 1i8, "$e": -1i8 }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/primitive-02/primitive-02.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-02/primitive-02.1.adm
new file mode 100644
index 0000000..32b89e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-02/primitive-02.1.adm
@@ -0,0 +1 @@
+{ "$a": -32767i16, "$b": 32767i16, "$c": 0i16, "$d": 1i16, "$e": -1i16, "$f": 16383i16, "$g": -16383i16 }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/primitive-03/primitive-03.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-03/primitive-03.1.adm
new file mode 100644
index 0000000..f7774d0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-03/primitive-03.1.adm
@@ -0,0 +1 @@
+{ "$a": -2147483647, "$b": 2147483647, "$c": 0, "$d": 1, "$e": -1, "$f": 1073741828, "$g": -1073741828 }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/primitive-04/primitive-04.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-04/primitive-04.1.adm
new file mode 100644
index 0000000..3453e4e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/primitive-04/primitive-04.1.adm
@@ -0,0 +1 @@
+{ "$a": 9222872036854775809i64, "$b": -9222872036854775809i64, "$c": 0i64, "$d": 1i64, "$e": -1i64, "$f": 4611436018427387904i64, "$g": -4611436018427387904i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/string_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/string_01/string_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/constructor/string_01.adm
rename to asterix-app/src/test/resources/runtimets/results/constructor/string_01/string_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/time_01.adm b/asterix-app/src/test/resources/runtimets/results/constructor/time_01.adm
deleted file mode 100644
index 2c932b5..0000000
--- a/asterix-app/src/test/resources/runtimets/results/constructor/time_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "time1": time("10:50:56:200+05:00"), "time2": time("10:50:56:200-10:15"), "time3": time("10:50:56:000+00:00"), "time4": time("10:50:56:200+00:00"), "time5": time("23:59:59:980-13:30"), "time6": time("24:00:00:000+14:45"), "time7": time("12:59:00:000-01:00") }
diff --git a/asterix-app/src/test/resources/runtimets/results/constructor/time_01/time_01.1.adm b/asterix-app/src/test/resources/runtimets/results/constructor/time_01/time_01.1.adm
new file mode 100644
index 0000000..64e96dd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/constructor/time_01/time_01.1.adm
@@ -0,0 +1 @@
+{ "time1": time("05:50:56.200Z"), "time2": time("21:05:56.200Z"), "time3": time("10:50:56.000Z"), "time4": time("10:50:56.200Z"), "time5": time("13:29:59.999Z"), "time6": time("09:15:00.000Z"), "time7": time("13:59:00.019Z"), "time8": time("13:59:00.010Z"), "time9": time("13:59:00.019Z"), "time10": time("13:59:00.010Z"), "time11": time("11:59:00.019Z") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv01/cross-dv01.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv01/cross-dv01.1.adm
new file mode 100644
index 0000000..83de609
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv01/cross-dv01.1.adm
@@ -0,0 +1 @@
+{ "ug-student": { "id": 457, "name": "John Doe", "age": 22, "sex": "M", "dept": "Dance" }, "prof": { "id": 152, "name": "John Meyer", "age": 42, "sex": "M", "dept": "History" }, "grd-student": { "id": 418, "name": "John Smith", "age": 26, "sex": "M", "dept": "Economics" }, "postdoc": { "id": 259, "name": "Sophia Reece", "age": 36, "sex": "F", "dept": "Anthropology" } }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv02/cross-dv02.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv02/cross-dv02.1.adm
new file mode 100644
index 0000000..8bd73db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv02/cross-dv02.1.adm
@@ -0,0 +1,4 @@
+{ "DataverseName": "student", "DatasetName": "gdstd", "DataTypeName": "stdType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:01:46 PST 2013" }
+{ "DataverseName": "student", "DatasetName": "ugdstd", "DataTypeName": "stdType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:01:46 PST 2013" }
+{ "DataverseName": "teacher", "DatasetName": "prof", "DataTypeName": "tchrType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:01:46 PST 2013" }
+{ "DataverseName": "teacher", "DatasetName": "pstdoc", "DataTypeName": "tchrType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:01:46 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv03/cross-dv03.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv03/cross-dv03.1.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv03/cross-dv03.1.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv04/cross-dv04.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv04/cross-dv04.1.adm
new file mode 100644
index 0000000..ff1f9df
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv04/cross-dv04.1.adm
@@ -0,0 +1,4 @@
+{ "DataverseName": "student", "DatasetName": "gdstd", "DataTypeName": "stdType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:03:50 PST 2013" }
+{ "DataverseName": "student", "DatasetName": "ugdstd", "DataTypeName": "stdType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:03:50 PST 2013" }
+{ "DataverseName": "teacher", "DatasetName": "prof", "DataTypeName": "tchrType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:03:50 PST 2013" }
+{ "DataverseName": "teacher", "DatasetName": "pstdoc", "DataTypeName": "tchrType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:03:50 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv07/cross-dv07.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv07/cross-dv07.1.adm
new file mode 100644
index 0000000..cebf05b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv07/cross-dv07.1.adm
@@ -0,0 +1 @@
+{ "id": 881, "fname": "Julio", "lname": "Isa", "age": 38, "dept": "Sales" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv09/cross-dv09.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv09/cross-dv09.1.adm
new file mode 100644
index 0000000..1b2a42c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv09/cross-dv09.1.adm
@@ -0,0 +1 @@
+"function 01"
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv11/cross-dv11.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv11/cross-dv11.1.adm
new file mode 100644
index 0000000..490df54
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv11/cross-dv11.1.adm
@@ -0,0 +1 @@
+"function 02"
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv12/cross-dv12.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv12/cross-dv12.1.adm
new file mode 100644
index 0000000..552e141
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv12/cross-dv12.1.adm
@@ -0,0 +1 @@
+{ "fun-01": "function 01", "fun-02": "function 02" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv14/cross-dv14.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv14/cross-dv14.1.adm
new file mode 100644
index 0000000..29d6383
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv14/cross-dv14.1.adm
@@ -0,0 +1 @@
+100
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv15/cross-dv15.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv15/cross-dv15.1.adm
new file mode 100644
index 0000000..05deeeb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv15/cross-dv15.1.adm
@@ -0,0 +1,3 @@
+{ "DataverseName": "testdv1", "Name": "fun01", "Arity": "0", "Params": [  ], "ReturnType": "VOID", "Definition": "100", "Language": "AQL", "Kind": "SCALAR" }
+{ "DataverseName": "testdv1", "Name": "fun02", "Arity": "1", "Params": [ "$a" ], "ReturnType": "VOID", "Definition": "\"function 02\"", "Language": "AQL", "Kind": "SCALAR" }
+{ "DataverseName": "testdv1", "Name": "fun03", "Arity": "2", "Params": [ "$b", "$c" ], "ReturnType": "VOID", "Definition": "$b+$c", "Language": "AQL", "Kind": "SCALAR" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv17/cross-dv17.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv17/cross-dv17.1.adm
new file mode 100644
index 0000000..cd358f1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv17/cross-dv17.1.adm
@@ -0,0 +1,2 @@
+[ { "l": { "id": 21 }, "m": { "id": 21 } }, { "l": { "id": 23 }, "m": { "id": 21 } }, { "l": { "id": 21 }, "m": { "id": 23 } }, { "l": { "id": 23 }, "m": { "id": 23 } }, { "l": { "id": 21 }, "m": { "id": 24 } }, { "l": { "id": 23 }, "m": { "id": 24 } }, { "l": { "id": 21 }, "m": { "id": 44 } }, { "l": { "id": 23 }, "m": { "id": 44 } }, { "l": { "id": 21 }, "m": { "id": 64 } }, { "l": { "id": 23 }, "m": { "id": 64 } } ]
+[ { "l": { "id": 24 }, "m": { "id": 21 } }, { "l": { "id": 44 }, "m": { "id": 21 } }, { "l": { "id": 64 }, "m": { "id": 21 } }, { "l": { "id": 24 }, "m": { "id": 23 } }, { "l": { "id": 44 }, "m": { "id": 23 } }, { "l": { "id": 64 }, "m": { "id": 23 } }, { "l": { "id": 24 }, "m": { "id": 24 } }, { "l": { "id": 44 }, "m": { "id": 24 } }, { "l": { "id": 64 }, "m": { "id": 24 } }, { "l": { "id": 24 }, "m": { "id": 44 } }, { "l": { "id": 44 }, "m": { "id": 44 } }, { "l": { "id": 64 }, "m": { "id": 44 } }, { "l": { "id": 24 }, "m": { "id": 64 } }, { "l": { "id": 44 }, "m": { "id": 64 } }, { "l": { "id": 64 }, "m": { "id": 64 } } ]
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv19/cross-dv19.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv19/cross-dv19.1.adm
new file mode 100644
index 0000000..7be9c57
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv19/cross-dv19.1.adm
@@ -0,0 +1,7 @@
+{ "DataverseName": "test1", "DatasetName": "TwitterData", "DataTypeName": "Tweet", "DatasetType": "EXTERNAL", "InternalDetails": null, "ExternalDetails": { "DatasourceAdapter": "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter", "Properties": [ { "Name": "path", "Value": "nc1://data/twitter/extrasmalltweets.txt" }, { "Name": "format", "Value": "adm" } ] }, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test1", "DatasetName": "t1", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test1", "DatasetName": "t2", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test1", "DatasetName": "t3", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test2", "DatasetName": "t2", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test2", "DatasetName": "t3", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
+{ "DataverseName": "test2", "DatasetName": "t4", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:04:36 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv20/cross-dv20.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv20/cross-dv20.1.adm
new file mode 100644
index 0000000..e6cbca6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/cross-dv20/cross-dv20.1.adm
@@ -0,0 +1,2 @@
+{ "ug-student": { "id": 457, "name": "John Doe", "age": 22, "sex": "M", "dept": "Dance" }, "prof": { "id": 152, "name": "John Meyer", "age": 42, "sex": "M", "dept": "History" }, "grd-student": { "id": 418, "name": "John Smith", "age": 26, "sex": "M", "dept": "Economics" }, "postdoc": { "id": 259, "name": "Sophia Reece", "age": 36, "sex": "F", "dept": "Anthropology" } }
+
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/drop_dataset/drop_dataset.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/cross-dataverse/drop_dataset/drop_dataset.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.adm
new file mode 100644
index 0000000..f3449f0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_across_dataverses/insert_across_dataverses.1.adm
@@ -0,0 +1,5 @@
+{ "cid": 0, "name": "Mike ley", "cashBack": 600, "age": null, "address": null, "lastorder": { "oid": 258, "total": 368.61862f } }
+{ "cid": 1, "name": "Mike Carey", "cashBack": 650, "age": null, "address": { "number": 389, "street": "Hill St.", "city": "Mountain View" }, "lastorder": { "oid": 18, "total": 338.61862f } }
+{ "cid": 4, "name": "Mary Carey", "cashBack": 450, "age": 12, "address": { "number": 8, "street": "Hill St.", "city": "Mountain View" }, "lastorder": { "oid": 4545, "total": 87.61863f } }
+{ "cid": 5, "name": "Jodi Alex", "cashBack": 350, "age": 19, "address": null, "lastorder": { "oid": 48, "total": 318.61862f } }
+{ "cid": 775, "name": "Jodi Rotruck", "cashBack": 100, "age": null, "address": { "number": 8389, "street": "Hill St.", "city": "Mountain View" }, "lastorder": { "oid": 66, "total": 38.618626f } }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.adm
new file mode 100644
index 0000000..2d65d9a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/insert_from_source_dataset/insert_from_source_dataset.1.adm
@@ -0,0 +1,10 @@
+{ "id": 201, "name": "Kelvin" }
+{ "id": 219, "name": "Sam" }
+{ "id": 257, "name": "Sammy" }
+{ "id": 321, "name": "Bobby" }
+{ "id": 351, "name": "Bob" }
+{ "id": 438, "name": "Ravi" }
+{ "id": 456, "name": "Roger" }
+{ "id": 482, "name": "Kevin" }
+{ "id": 851, "name": "Ricardo" }
+{ "id": 926, "name": "Richard" }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/join_across_dataverses/join_across_dataverses.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/join_across_dataverses/join_across_dataverses.1.adm
new file mode 100644
index 0000000..e78ad8f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/join_across_dataverses/join_across_dataverses.1.adm
@@ -0,0 +1,3 @@
+{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 7.206f, "orderList": [ 10, 5 ] }
+{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 14.2326f, "orderList": [ 10, 775 ] }
+{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 97.20656f, "orderList": [ 1000, 775 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset/metadata_dataset.1.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset/metadata_dataset.1.adm
new file mode 100644
index 0000000..8abc339
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset/metadata_dataset.1.adm
@@ -0,0 +1,8 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Nov 05 10:33:40 PST 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_01.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_01/customer_q_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_01.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_01/customer_q_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_02.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_02/customer_q_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_02.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_02/customer_q_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_03.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_03/customer_q_03.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_03.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_03/customer_q_03.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_04.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_04/customer_q_04.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_04.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_04/customer_q_04.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_05.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_05/customer_q_05.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_05.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_05/customer_q_05.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_06.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_06/customer_q_06.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_06.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_06/customer_q_06.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_07.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_07/customer_q_07.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_07.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_07/customer_q_07.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/customer_q_08.adm b/asterix-app/src/test/resources/runtimets/results/custord/customer_q_08/customer_q_08.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/customer_q_08.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/customer_q_08/customer_q_08.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/denorm-cust-order_02.adm b/asterix-app/src/test/resources/runtimets/results/custord/denorm-cust-order_02/denorm-cust-order_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/denorm-cust-order_02.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/denorm-cust-order_02/denorm-cust-order_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/join_q_01.adm b/asterix-app/src/test/resources/runtimets/results/custord/join_q_01.adm
deleted file mode 100644
index 7648e4a..0000000
--- a/asterix-app/src/test/resources/runtimets/results/custord/join_q_01.adm
+++ /dev/null
@@ -1,3 +0,0 @@
-{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 7.206f, "orderList": [ 10, 5 ], "orderList": {{ 10, 5 }} }
-{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 14.2326f, "orderList": [ 10, 775 ], "orderList": {{ 10, 775 }} }
-{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 97.20656f, "orderList": [ 1000, 775 ], "orderList": {{ 1000, 775 }} }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/join_q_01/join_q_01.1.adm b/asterix-app/src/test/resources/runtimets/results/custord/join_q_01/join_q_01.1.adm
new file mode 100644
index 0000000..e78ad8f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/custord/join_q_01/join_q_01.1.adm
@@ -0,0 +1,3 @@
+{ "cust_name": "Jodi Alex", "cust_age": 19, "order_total": 7.206f, "orderList": [ 10, 5 ] }
+{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 14.2326f, "orderList": [ 10, 775 ] }
+{ "cust_name": "Jodi Rotruck", "cust_age": null, "order_total": 97.20656f, "orderList": [ 1000, 775 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/join_q_02.adm b/asterix-app/src/test/resources/runtimets/results/custord/join_q_02/join_q_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/join_q_02.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/join_q_02/join_q_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/join_q_03.adm b/asterix-app/src/test/resources/runtimets/results/custord/join_q_03/join_q_03.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/join_q_03.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/join_q_03/join_q_03.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/join_q_04.adm b/asterix-app/src/test/resources/runtimets/results/custord/join_q_04/join_q_04.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/join_q_04.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/join_q_04/join_q_04.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/load-test.adm b/asterix-app/src/test/resources/runtimets/results/custord/load-test/load-test.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/load-test.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/load-test/load-test.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_01.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_01/order_q_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/order_q_01.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/order_q_01/order_q_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_02.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_02/order_q_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/order_q_02.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/order_q_02/order_q_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_03.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_03.adm
deleted file mode 100644
index 903c00d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/custord/order_q_03.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "orderid": 1000, "ordertot": 97.20656f, "list": [ "ORDER_DELIVERED", "Kathryne" ], "item1": "ORDER_DELIVERED", "item1": "ORDER_DELIVERED", "item2": "Kathryne", "item3": null }
-{ "orderid": 10, "ordertot": 7.206f, "list": [ "ORDER_DELIVERED", "ALEX" ], "item1": "ORDER_DELIVERED", "item1": "ORDER_DELIVERED", "item2": "ALEX", "item3": null }
-{ "orderid": 100, "ordertot": 124.26f, "list": [ "ORDER_DELIVERED", "YASSER" ], "item1": "ORDER_DELIVERED", "item1": "ORDER_DELIVERED", "item2": "YASSER", "item3": null }
-{ "orderid": 10, "ordertot": 14.2326f, "list": [ "ORDER_DELIVERED", "MIKE" ], "item1": "ORDER_DELIVERED", "item1": "ORDER_DELIVERED", "item2": "MIKE", "item3": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_03/order_q_03.1.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_03/order_q_03.1.adm
new file mode 100644
index 0000000..4e02c4b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/custord/order_q_03/order_q_03.1.adm
@@ -0,0 +1,4 @@
+{ "orderid": 1000, "ordertot": 97.20656f, "list": [ "ORDER_DELIVERED", "Kathryne" ], "item1": "ORDER_DELIVERED", "item2": "Kathryne", "item3": null }
+{ "orderid": 10, "ordertot": 7.206f, "list": [ "ORDER_DELIVERED", "ALEX" ], "item1": "ORDER_DELIVERED", "item2": "ALEX", "item3": null }
+{ "orderid": 100, "ordertot": 124.26f, "list": [ "ORDER_DELIVERED", "YASSER" ], "item1": "ORDER_DELIVERED", "item2": "YASSER", "item3": null }
+{ "orderid": 10, "ordertot": 14.2326f, "list": [ "ORDER_DELIVERED", "MIKE" ], "item1": "ORDER_DELIVERED", "item2": "MIKE", "item3": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_04.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_04.adm
deleted file mode 100644
index f22ea7f..0000000
--- a/asterix-app/src/test/resources/runtimets/results/custord/order_q_04.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "orderid": 1000, "ordertot": 97.20656f, "list": [ [ "1.0f", "yassser" ], [ 11, 14, "yasir", 1.6f ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ "1.0f", "yassser" ], "item1": [ "1.0f", "yassser" ], "item2": [ 11, 14, "yasir", 1.6f ], "item5": null, "item10": null }
-{ "orderid": 10, "ordertot": 7.206f, "list": [ [ 1.0f, "5.2f", "60" ], [ 13231, "foo", null, 13.25d, 13.2f ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ 1.0f, "5.2f", "60" ], "item1": [ 1.0f, "5.2f", "60" ], "item2": [ 13231, "foo", null, 13.25d, 13.2f ], "item5": null, "item10": null }
-{ "orderid": 100, "ordertot": 124.26f, "list": [ [ 1.3f, 5.2f, "60", 12.32f ], [ 10, 2.0f, 3.0d, 40 ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ 1.3f, 5.2f, "60", 12.32f ], "item1": [ 1.3f, 5.2f, "60", 12.32f ], "item2": [ 10, 2.0f, 3.0d, 40 ], "item5": null, "item10": null }
-{ "orderid": 10, "ordertot": 14.2326f, "list": [ [ 2.4f, "15" ], [ 110 ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), { "oid": 75, "total": 87.61863f } ], "item1": [ 2.4f, "15" ], "item1": [ 2.4f, "15" ], "item2": [ 110 ], "item5": { "oid": 75, "total": 87.61863f }, "item10": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_04/order_q_04.1.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_04/order_q_04.1.adm
new file mode 100644
index 0000000..3992f7d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/custord/order_q_04/order_q_04.1.adm
@@ -0,0 +1,4 @@
+{ "orderid": 1000, "ordertot": 97.20656f, "list": [ [ "1.0f", "yassser" ], [ 11, 14, "yasir", 1.6f ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ "1.0f", "yassser" ], "item2": [ 11, 14, "yasir", 1.6f ], "item5": null, "item10": null }
+{ "orderid": 10, "ordertot": 7.206f, "list": [ [ 1.0f, "5.2f", "60" ], [ 13231, "foo", null, 13.25d, 13.2f ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ 1.0f, "5.2f", "60" ], "item2": [ 13231, "foo", null, 13.25d, 13.2f ], "item5": null, "item10": null }
+{ "orderid": 100, "ordertot": 124.26f, "list": [ [ 1.3f, 5.2f, "60", 12.32f ], [ 10, 2.0f, 3.0d, 40 ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), null ], "item1": [ 1.3f, 5.2f, "60", 12.32f ], "item2": [ 10, 2.0f, 3.0d, 40 ], "item5": null, "item10": null }
+{ "orderid": 10, "ordertot": 14.2326f, "list": [ [ 2.4f, "15" ], [ 110 ], point("10.1,11.1"), line("10.1,11.1 10.2,11.2"), polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), { "oid": 75, "total": 87.61863f } ], "item1": [ 2.4f, "15" ], "item2": [ 110 ], "item5": { "oid": 75, "total": 87.61863f }, "item10": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_05.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_05.adm
deleted file mode 100644
index dd3420e..0000000
--- a/asterix-app/src/test/resources/runtimets/results/custord/order_q_05.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "orderid": 1000, "ordertot": 97.20656f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
-{ "orderid": 10, "ordertot": 7.206f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
-{ "orderid": 100, "ordertot": 124.26f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
-{ "orderid": 10, "ordertot": 14.2326f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_05/order_q_05.1.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_05/order_q_05.1.adm
new file mode 100644
index 0000000..4d8b37c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/custord/order_q_05/order_q_05.1.adm
@@ -0,0 +1,4 @@
+{ "orderid": 1000, "ordertot": 97.20656f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
+{ "orderid": 10, "ordertot": 7.206f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
+{ "orderid": 100, "ordertot": 124.26f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
+{ "orderid": 10, "ordertot": 14.2326f, "emptyorderedlist": [  ], "emptyunorderedlist": {{  }}, "olist_item1": null, "olist_item5": null, "ulist_item1": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/custord/order_q_06.adm b/asterix-app/src/test/resources/runtimets/results/custord/order_q_06/order_q_06.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/custord/order_q_06.adm
rename to asterix-app/src/test/resources/runtimets/results/custord/order_q_06/order_q_06.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dapd/q1.adm b/asterix-app/src/test/resources/runtimets/results/dapd/q1/q1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dapd/q1.adm
rename to asterix-app/src/test/resources/runtimets/results/dapd/q1/q1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dapd/q2.adm b/asterix-app/src/test/resources/runtimets/results/dapd/q2/q2.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dapd/q2.adm
rename to asterix-app/src/test/resources/runtimets/results/dapd/q2/q2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/create-drop-cltype/create-drop-cltype.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/create-drop-cltype/create-drop-cltype.1.adm
new file mode 100644
index 0000000..e2f6676
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/create-drop-cltype/create-drop-cltype.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatatypeName": "TestType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "id", "FieldType": "int32" }, { "FieldName": "salary", "FieldType": "Field_salary_in_TestType" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "durtn", "FieldType": "Field_durtn_in_TestType" }, { "FieldName": "inter", "FieldType": "interval" }, { "FieldName": "dt", "FieldType": "Field_dt_in_TestType" }, { "FieldName": "tm", "FieldType": "time" }, { "FieldName": "pt", "FieldType": "Field_pt_in_TestType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Feb 11 18:10:43 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/create-drop-opntype/create-drop-opntype.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/create-drop-opntype/create-drop-opntype.1.adm
new file mode 100644
index 0000000..8c0b451
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/create-drop-opntype/create-drop-opntype.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatatypeName": "TestType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "id", "FieldType": "int32" }, { "FieldName": "salary", "FieldType": "Field_salary_in_TestType" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "durtn", "FieldType": "Field_durtn_in_TestType" }, { "FieldName": "inter", "FieldType": "interval" }, { "FieldName": "dt", "FieldType": "Field_dt_in_TestType" }, { "FieldName": "tm", "FieldType": "time" }, { "FieldName": "pt", "FieldType": "Field_pt_in_TestType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Feb 11 18:12:10 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/delete-with-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/delete-with-index.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/delete-from-loaded-dataset-with-index/delete-from-loaded-dataset-with-index.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/delete.adm b/asterix-app/src/test/resources/runtimets/results/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/delete.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/delete-from-loaded-dataset/delete-from-loaded-dataset.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/delete-syntax-change/delete-syntax-change.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/delete-syntax-change/delete-syntax-change.1.adm
new file mode 100644
index 0000000..f1d5d75
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/delete-syntax-change/delete-syntax-change.1.adm
@@ -0,0 +1,26 @@
+{ "l_orderkey": 1, "l_partkey": 156, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 17, "l_extendedprice": 17954.55d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-13", "l_commitdate": "1996-02-12", "l_receiptdate": "1996-03-22", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "egular courts above the" }
+{ "l_orderkey": 1, "l_partkey": 68, "l_suppkey": 9, "l_linenumber": 2, "l_quantity": 36, "l_extendedprice": 34850.16d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-04-12", "l_commitdate": "1996-02-28", "l_receiptdate": "1996-04-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ly final dependencies: slyly bold " }
+{ "l_orderkey": 1, "l_partkey": 64, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 8, "l_extendedprice": 7712.48d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-29", "l_commitdate": "1996-03-05", "l_receiptdate": "1996-01-31", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "riously. regular, express dep" }
+{ "l_orderkey": 1, "l_partkey": 3, "l_suppkey": 6, "l_linenumber": 4, "l_quantity": 28, "l_extendedprice": 25284.0d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-04-21", "l_commitdate": "1996-03-30", "l_receiptdate": "1996-05-16", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "lites. fluffily even de" }
+{ "l_orderkey": 1, "l_partkey": 25, "l_suppkey": 8, "l_linenumber": 5, "l_quantity": 24, "l_extendedprice": 22200.48d, "l_discount": 0.1d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-30", "l_commitdate": "1996-03-14", "l_receiptdate": "1996-04-01", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": " pending foxes. slyly re" }
+{ "l_orderkey": 1, "l_partkey": 16, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 32, "l_extendedprice": 29312.32d, "l_discount": 0.07d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-30", "l_commitdate": "1996-02-07", "l_receiptdate": "1996-02-03", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "arefully slyly ex" }
+{ "l_orderkey": 2, "l_partkey": 107, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 38, "l_extendedprice": 38269.8d, "l_discount": 0.0d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-28", "l_commitdate": "1997-01-14", "l_receiptdate": "1997-02-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ven requests. deposits breach a" }
+{ "l_orderkey": 3, "l_partkey": 5, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 45, "l_extendedprice": 40725.0d, "l_discount": 0.06d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-02", "l_commitdate": "1994-01-04", "l_receiptdate": "1994-02-23", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ongside of the furiously brave acco" }
+{ "l_orderkey": 3, "l_partkey": 20, "l_suppkey": 10, "l_linenumber": 2, "l_quantity": 49, "l_extendedprice": 45080.98d, "l_discount": 0.1d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-11-09", "l_commitdate": "1993-12-20", "l_receiptdate": "1993-11-24", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": " unusual accounts. eve" }
+{ "l_orderkey": 3, "l_partkey": 129, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 27, "l_extendedprice": 27786.24d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-01-16", "l_commitdate": "1993-11-22", "l_receiptdate": "1994-01-23", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "nal foxes wake. " }
+{ "l_orderkey": 3, "l_partkey": 30, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 2, "l_extendedprice": 1860.06d, "l_discount": 0.01d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-12-04", "l_commitdate": "1994-01-07", "l_receiptdate": "1994-01-01", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "y. fluffily pending d" }
+{ "l_orderkey": 3, "l_partkey": 184, "l_suppkey": 5, "l_linenumber": 5, "l_quantity": 28, "l_extendedprice": 30357.04d, "l_discount": 0.04d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-12-14", "l_commitdate": "1994-01-10", "l_receiptdate": "1994-01-01", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ages nag slyly pending" }
+{ "l_orderkey": 3, "l_partkey": 63, "l_suppkey": 8, "l_linenumber": 6, "l_quantity": 26, "l_extendedprice": 25039.56d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-10-29", "l_commitdate": "1993-12-18", "l_receiptdate": "1993-11-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ges sleep after the caref" }
+{ "l_orderkey": 4, "l_partkey": 89, "l_suppkey": 10, "l_linenumber": 1, "l_quantity": 30, "l_extendedprice": 29672.4d, "l_discount": 0.03d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-10", "l_commitdate": "1995-12-14", "l_receiptdate": "1996-01-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "- quickly regular packages sleep. idly" }
+{ "l_orderkey": 5, "l_partkey": 109, "l_suppkey": 10, "l_linenumber": 1, "l_quantity": 15, "l_extendedprice": 15136.5d, "l_discount": 0.02d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-31", "l_commitdate": "1994-08-31", "l_receiptdate": "1994-11-20", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ts wake furiously " }
+{ "l_orderkey": 5, "l_partkey": 124, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 26, "l_extendedprice": 26627.12d, "l_discount": 0.07d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-16", "l_commitdate": "1994-09-25", "l_receiptdate": "1994-10-19", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "sts use slyly quickly special instruc" }
+{ "l_orderkey": 5, "l_partkey": 38, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 50, "l_extendedprice": 46901.5d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-08-08", "l_commitdate": "1994-10-13", "l_receiptdate": "1994-08-26", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "eodolites. fluffily unusual" }
+{ "l_orderkey": 6, "l_partkey": 140, "l_suppkey": 6, "l_linenumber": 1, "l_quantity": 37, "l_extendedprice": 38485.18d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-04-27", "l_commitdate": "1992-05-15", "l_receiptdate": "1992-05-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "p furiously special foxes" }
+{ "l_orderkey": 7, "l_partkey": 183, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 12, "l_extendedprice": 12998.16d, "l_discount": 0.07d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-05-07", "l_commitdate": "1996-03-13", "l_receiptdate": "1996-06-03", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ss pinto beans wake against th" }
+{ "l_orderkey": 7, "l_partkey": 146, "l_suppkey": 3, "l_linenumber": 2, "l_quantity": 9, "l_extendedprice": 9415.26d, "l_discount": 0.08d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-01", "l_commitdate": "1996-03-02", "l_receiptdate": "1996-02-19", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "es. instructions" }
+{ "l_orderkey": 7, "l_partkey": 95, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 46, "l_extendedprice": 45774.14d, "l_discount": 0.1d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-15", "l_commitdate": "1996-03-27", "l_receiptdate": "1996-02-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": " unusual reques" }
+{ "l_orderkey": 7, "l_partkey": 164, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 28, "l_extendedprice": 29796.48d, "l_discount": 0.03d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-21", "l_commitdate": "1996-04-08", "l_receiptdate": "1996-04-20", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": ". slyly special requests haggl" }
+{ "l_orderkey": 7, "l_partkey": 152, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 38, "l_extendedprice": 39981.7d, "l_discount": 0.08d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-11", "l_commitdate": "1996-02-24", "l_receiptdate": "1996-02-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "ns haggle carefully ironic deposits. bl" }
+{ "l_orderkey": 7, "l_partkey": 80, "l_suppkey": 10, "l_linenumber": 6, "l_quantity": 35, "l_extendedprice": 34302.8d, "l_discount": 0.06d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-16", "l_commitdate": "1996-02-23", "l_receiptdate": "1996-01-22", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "jole. excuses wake carefully alongside of " }
+{ "l_orderkey": 7, "l_partkey": 158, "l_suppkey": 3, "l_linenumber": 7, "l_quantity": 5, "l_extendedprice": 5290.75d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-10", "l_commitdate": "1996-03-26", "l_receiptdate": "1996-02-13", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ithely regula" }
+
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.adm
new file mode 100644
index 0000000..9b49756
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/drop-empty-secondary-indexes/drop-empty-secondary-indexes.1.adm
@@ -0,0 +1,3 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Fri Feb 08 17:57:01 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Fri Feb 08 17:57:01 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Fri Feb 08 17:57:01 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/drop-index/drop-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/drop-index/drop-index.1.adm
new file mode 100644
index 0000000..f3c688b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/drop-index/drop-index.1.adm
@@ -0,0 +1 @@
+{ "unique1": 84, "unique2": 10, "two": 0, "four": 0, "ten": 4, "twenty": 4, "onePercent": 84, "tenPercent": 4, "twentyPercent": 4, "fiftyPercent": 0, "unique3": 84, "evenOnePercent": 168, "oddOnePercent": 169, "stringu1": "DGAAAAXXXXXXXXXXXXXXXXXXX", "stringu2": "KAAAAAXXXXXXXXXXXXXXXXXXX", "string4": "OOOOXXXXXXXXXXXXXXXXXXXXXX" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/empty-load-with-index/empty-load-with-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/empty-load-with-index/empty-load-with-index.1.adm
new file mode 100644
index 0000000..9c4ca31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/empty-load-with-index/empty-load-with-index.1.adm
@@ -0,0 +1 @@
+{ "l_orderkey": 1, "l_partkey": 156, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 17.0d, "l_extendedprice": 17954.55d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-13", "l_commitdate": "1996-02-12", "l_receiptdate": "1996-03-22", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "egular courts above the" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/empty-load/empty-load.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/empty-load/empty-load.1.adm
new file mode 100644
index 0000000..9c4ca31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/empty-load/empty-load.1.adm
@@ -0,0 +1 @@
+{ "l_orderkey": 1, "l_partkey": 156, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 17.0d, "l_extendedprice": 17954.55d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-13", "l_commitdate": "1996-02-12", "l_receiptdate": "1996-03-22", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "egular courts above the" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/insert-into-empty-dataset-with-index/insert-into-empty-dataset-with-index.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-empty-dataset/insert-into-empty-dataset.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/insert-into-empty-dataset/insert-into-empty-dataset.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-tuple-with-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/dml/insert-tuple-with-index.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset-with-index_01/insert-into-loaded-dataset-with-index_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-with-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert-with-index.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset-with-index_02/insert-into-loaded-dataset-with-index_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/dml/insert-tuple.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset_01/insert-into-loaded-dataset_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-wisc.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert-wisc.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/insert-into-loaded-dataset_02/insert-into-loaded-dataset_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-src-dst-01/insert-src-dst-01.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-src-dst-01/insert-src-dst-01.1.adm
new file mode 100644
index 0000000..70b6b95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/insert-src-dst-01/insert-src-dst-01.1.adm
@@ -0,0 +1,5 @@
+{ "id": "001", "name": null }
+{ "id": "002", "name": "John Doe" }
+{ "id": "003", "name": null }
+{ "id": "004", "name": null }
+{ "id": "005", "name": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-syntax/insert-syntax.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert-syntax/insert-syntax.1.adm
new file mode 100644
index 0000000..9407868
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/insert-syntax/insert-syntax.1.adm
@@ -0,0 +1,4 @@
+{ "id": 1, "name": "Person One", "hobbies": {{ "Rock", "Metal" }} }
+{ "id": 2, "name": "Person Two", "hobbies": {{ "Rock", "Jazz" }} }
+{ "id": 3, "name": "Person Three", "hobbies": {{ "Blues" }} }
+{ "id": 4, "name": "Person Four", "hobbies": {{ "Metal", "Jazz" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert/insert.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/insert/insert.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert_less_nc.adm b/asterix-app/src/test/resources/runtimets/results/dml/insert_less_nc/insert_less_nc.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert_less_nc.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/insert_less_nc/insert_less_nc.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/load-from-hdfs/load-from-hdfs.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/load-from-hdfs/load-from-hdfs.1.adm
new file mode 100644
index 0000000..ad7babd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/load-from-hdfs/load-from-hdfs.1.adm
@@ -0,0 +1,6005 @@
+{ "l_orderkey": 1, "l_partkey": 156, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 17.0d, "l_extendedprice": 17954.55d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-13", "l_commitdate": "1996-02-12", "l_receiptdate": "1996-03-22", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "egular courts above the" }
+{ "l_orderkey": 1, "l_partkey": 68, "l_suppkey": 9, "l_linenumber": 2, "l_quantity": 36.0d, "l_extendedprice": 34850.16d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-04-12", "l_commitdate": "1996-02-28", "l_receiptdate": "1996-04-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ly final dependencies: slyly bold " }
+{ "l_orderkey": 1, "l_partkey": 64, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 8.0d, "l_extendedprice": 7712.48d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-29", "l_commitdate": "1996-03-05", "l_receiptdate": "1996-01-31", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "riously. regular, express dep" }
+{ "l_orderkey": 1, "l_partkey": 3, "l_suppkey": 6, "l_linenumber": 4, "l_quantity": 28.0d, "l_extendedprice": 25284.0d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-04-21", "l_commitdate": "1996-03-30", "l_receiptdate": "1996-05-16", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "lites. fluffily even de" }
+{ "l_orderkey": 1, "l_partkey": 25, "l_suppkey": 8, "l_linenumber": 5, "l_quantity": 24.0d, "l_extendedprice": 22200.48d, "l_discount": 0.1d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-30", "l_commitdate": "1996-03-14", "l_receiptdate": "1996-04-01", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": " pending foxes. slyly re" }
+{ "l_orderkey": 1, "l_partkey": 16, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 32.0d, "l_extendedprice": 29312.32d, "l_discount": 0.07d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-30", "l_commitdate": "1996-02-07", "l_receiptdate": "1996-02-03", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "arefully slyly ex" }
+{ "l_orderkey": 2, "l_partkey": 107, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 38.0d, "l_extendedprice": 38269.8d, "l_discount": 0.0d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-28", "l_commitdate": "1997-01-14", "l_receiptdate": "1997-02-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ven requests. deposits breach a" }
+{ "l_orderkey": 3, "l_partkey": 5, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 45.0d, "l_extendedprice": 40725.0d, "l_discount": 0.06d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-02", "l_commitdate": "1994-01-04", "l_receiptdate": "1994-02-23", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ongside of the furiously brave acco" }
+{ "l_orderkey": 3, "l_partkey": 20, "l_suppkey": 10, "l_linenumber": 2, "l_quantity": 49.0d, "l_extendedprice": 45080.98d, "l_discount": 0.1d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-11-09", "l_commitdate": "1993-12-20", "l_receiptdate": "1993-11-24", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": " unusual accounts. eve" }
+{ "l_orderkey": 3, "l_partkey": 129, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 27.0d, "l_extendedprice": 27786.24d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-01-16", "l_commitdate": "1993-11-22", "l_receiptdate": "1994-01-23", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "nal foxes wake. " }
+{ "l_orderkey": 3, "l_partkey": 30, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 2.0d, "l_extendedprice": 1860.06d, "l_discount": 0.01d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-12-04", "l_commitdate": "1994-01-07", "l_receiptdate": "1994-01-01", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "y. fluffily pending d" }
+{ "l_orderkey": 3, "l_partkey": 184, "l_suppkey": 5, "l_linenumber": 5, "l_quantity": 28.0d, "l_extendedprice": 30357.04d, "l_discount": 0.04d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-12-14", "l_commitdate": "1994-01-10", "l_receiptdate": "1994-01-01", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ages nag slyly pending" }
+{ "l_orderkey": 3, "l_partkey": 63, "l_suppkey": 8, "l_linenumber": 6, "l_quantity": 26.0d, "l_extendedprice": 25039.56d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-10-29", "l_commitdate": "1993-12-18", "l_receiptdate": "1993-11-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ges sleep after the caref" }
+{ "l_orderkey": 4, "l_partkey": 89, "l_suppkey": 10, "l_linenumber": 1, "l_quantity": 30.0d, "l_extendedprice": 29672.4d, "l_discount": 0.03d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-10", "l_commitdate": "1995-12-14", "l_receiptdate": "1996-01-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "- quickly regular packages sleep. idly" }
+{ "l_orderkey": 5, "l_partkey": 109, "l_suppkey": 10, "l_linenumber": 1, "l_quantity": 15.0d, "l_extendedprice": 15136.5d, "l_discount": 0.02d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-31", "l_commitdate": "1994-08-31", "l_receiptdate": "1994-11-20", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ts wake furiously " }
+{ "l_orderkey": 5, "l_partkey": 124, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 26.0d, "l_extendedprice": 26627.12d, "l_discount": 0.07d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-16", "l_commitdate": "1994-09-25", "l_receiptdate": "1994-10-19", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "sts use slyly quickly special instruc" }
+{ "l_orderkey": 5, "l_partkey": 38, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 50.0d, "l_extendedprice": 46901.5d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-08-08", "l_commitdate": "1994-10-13", "l_receiptdate": "1994-08-26", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "eodolites. fluffily unusual" }
+{ "l_orderkey": 6, "l_partkey": 140, "l_suppkey": 6, "l_linenumber": 1, "l_quantity": 37.0d, "l_extendedprice": 38485.18d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-04-27", "l_commitdate": "1992-05-15", "l_receiptdate": "1992-05-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "p furiously special foxes" }
+{ "l_orderkey": 7, "l_partkey": 183, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 12.0d, "l_extendedprice": 12998.16d, "l_discount": 0.07d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-05-07", "l_commitdate": "1996-03-13", "l_receiptdate": "1996-06-03", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ss pinto beans wake against th" }
+{ "l_orderkey": 7, "l_partkey": 146, "l_suppkey": 3, "l_linenumber": 2, "l_quantity": 9.0d, "l_extendedprice": 9415.26d, "l_discount": 0.08d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-01", "l_commitdate": "1996-03-02", "l_receiptdate": "1996-02-19", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "es. instructions" }
+{ "l_orderkey": 7, "l_partkey": 95, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 46.0d, "l_extendedprice": 45774.14d, "l_discount": 0.1d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-15", "l_commitdate": "1996-03-27", "l_receiptdate": "1996-02-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": " unusual reques" }
+{ "l_orderkey": 7, "l_partkey": 164, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 28.0d, "l_extendedprice": 29796.48d, "l_discount": 0.03d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-21", "l_commitdate": "1996-04-08", "l_receiptdate": "1996-04-20", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": ". slyly special requests haggl" }
+{ "l_orderkey": 7, "l_partkey": 152, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 38.0d, "l_extendedprice": 39981.7d, "l_discount": 0.08d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-11", "l_commitdate": "1996-02-24", "l_receiptdate": "1996-02-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "ns haggle carefully ironic deposits. bl" }
+{ "l_orderkey": 7, "l_partkey": 80, "l_suppkey": 10, "l_linenumber": 6, "l_quantity": 35.0d, "l_extendedprice": 34302.8d, "l_discount": 0.06d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-16", "l_commitdate": "1996-02-23", "l_receiptdate": "1996-01-22", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "jole. excuses wake carefully alongside of " }
+{ "l_orderkey": 7, "l_partkey": 158, "l_suppkey": 3, "l_linenumber": 7, "l_quantity": 5.0d, "l_extendedprice": 5290.75d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-10", "l_commitdate": "1996-03-26", "l_receiptdate": "1996-02-13", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ithely regula" }
+{ "l_orderkey": 32, "l_partkey": 83, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 28.0d, "l_extendedprice": 27526.24d, "l_discount": 0.05d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-10-23", "l_commitdate": "1995-08-27", "l_receiptdate": "1995-10-26", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "sleep quickly. req" }
+{ "l_orderkey": 32, "l_partkey": 198, "l_suppkey": 10, "l_linenumber": 2, "l_quantity": 32.0d, "l_extendedprice": 35142.08d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-14", "l_commitdate": "1995-10-07", "l_receiptdate": "1995-08-27", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "lithely regular deposits. fluffily " }
+{ "l_orderkey": 32, "l_partkey": 45, "l_suppkey": 2, "l_linenumber": 3, "l_quantity": 2.0d, "l_extendedprice": 1890.08d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-07", "l_commitdate": "1995-10-07", "l_receiptdate": "1995-08-23", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": " express accounts wake according to the" }
+{ "l_orderkey": 32, "l_partkey": 3, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 4.0d, "l_extendedprice": 3612.0d, "l_discount": 0.09d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-04", "l_commitdate": "1995-10-01", "l_receiptdate": "1995-09-03", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "e slyly final pac" }
+{ "l_orderkey": 32, "l_partkey": 86, "l_suppkey": 7, "l_linenumber": 5, "l_quantity": 44.0d, "l_extendedprice": 43387.52d, "l_discount": 0.05d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-28", "l_commitdate": "1995-08-20", "l_receiptdate": "1995-09-14", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "symptotes nag according to the ironic depo" }
+{ "l_orderkey": 32, "l_partkey": 12, "l_suppkey": 6, "l_linenumber": 6, "l_quantity": 6.0d, "l_extendedprice": 5472.06d, "l_discount": 0.04d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-21", "l_commitdate": "1995-09-23", "l_receiptdate": "1995-07-25", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": " gifts cajole carefully." }
+{ "l_orderkey": 33, "l_partkey": 62, "l_suppkey": 7, "l_linenumber": 1, "l_quantity": 31.0d, "l_extendedprice": 29823.86d, "l_discount": 0.09d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-10-29", "l_commitdate": "1993-12-19", "l_receiptdate": "1993-11-08", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "ng to the furiously ironic package" }
+{ "l_orderkey": 33, "l_partkey": 61, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 32.0d, "l_extendedprice": 30753.92d, "l_discount": 0.02d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-12-09", "l_commitdate": "1994-01-04", "l_receiptdate": "1993-12-28", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "gular theodolites" }
+{ "l_orderkey": 33, "l_partkey": 138, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 5.0d, "l_extendedprice": 5190.65d, "l_discount": 0.05d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-12-09", "l_commitdate": "1993-12-25", "l_receiptdate": "1993-12-23", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": ". stealthily bold exc" }
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+{ "l_orderkey": 614, "l_partkey": 137, "l_suppkey": 8, "l_linenumber": 6, "l_quantity": 48.0d, "l_extendedprice": 49782.24d, "l_discount": 0.04d, "l_tax": 0.08d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-12-14", "l_commitdate": "1993-01-22", "l_receiptdate": "1993-01-11", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": " regular platelets cajole quickly eve" }
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+{ "l_orderkey": 640, "l_partkey": 180, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 22.0d, "l_extendedprice": 23763.96d, "l_discount": 0.05d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-07", "l_commitdate": "1993-04-14", "l_receiptdate": "1993-05-21", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "osits across the slyly regular theodo" }
+{ "l_orderkey": 640, "l_partkey": 32, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 45.0d, "l_extendedprice": 41941.35d, "l_discount": 0.07d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-04-15", "l_commitdate": "1993-04-23", "l_receiptdate": "1993-04-21", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "ong the qui" }
+{ "l_orderkey": 641, "l_partkey": 126, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 18.0d, "l_extendedprice": 18470.16d, "l_discount": 0.01d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-10-17", "l_commitdate": "1993-10-11", "l_receiptdate": "1993-10-29", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "p blithely bold packages. quick" }
+{ "l_orderkey": 641, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 1.0d, "l_extendedprice": 1000.1d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-12-03", "l_commitdate": "1993-10-28", "l_receiptdate": "1993-12-26", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": " nag across the regular foxes." }
+{ "l_orderkey": 641, "l_partkey": 95, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 40.0d, "l_extendedprice": 39803.6d, "l_discount": 0.05d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-11-22", "l_commitdate": "1993-10-20", "l_receiptdate": "1993-12-11", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "lets. furiously regular requests cajo" }
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+{ "l_orderkey": 641, "l_partkey": 4, "l_suppkey": 9, "l_linenumber": 5, "l_quantity": 41.0d, "l_extendedprice": 37064.0d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-11-29", "l_commitdate": "1993-10-27", "l_receiptdate": "1993-12-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": " asymptotes are quickly. bol" }
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+{ "l_orderkey": 643, "l_partkey": 51, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 48.0d, "l_extendedprice": 45650.4d, "l_discount": 0.01d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-10", "l_commitdate": "1995-06-07", "l_receiptdate": "1995-08-01", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ly ironic accounts" }
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+{ "l_orderkey": 644, "l_partkey": 130, "l_suppkey": 3, "l_linenumber": 2, "l_quantity": 11.0d, "l_extendedprice": 11331.43d, "l_discount": 0.05d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-08-20", "l_commitdate": "1992-07-21", "l_receiptdate": "1992-09-11", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "ealthy pinto beans use carefu" }
+{ "l_orderkey": 644, "l_partkey": 101, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 44.0d, "l_extendedprice": 44048.4d, "l_discount": 0.04d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-08-17", "l_commitdate": "1992-07-26", "l_receiptdate": "1992-08-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "iously ironic pinto beans. bold packa" }
+{ "l_orderkey": 644, "l_partkey": 80, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 7.0d, "l_extendedprice": 6860.56d, "l_discount": 0.01d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-05-18", "l_commitdate": "1992-07-01", "l_receiptdate": "1992-06-07", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": " regular requests are blithely. slyly" }
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+{ "l_orderkey": 644, "l_partkey": 85, "l_suppkey": 6, "l_linenumber": 6, "l_quantity": 33.0d, "l_extendedprice": 32507.64d, "l_discount": 0.0d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-08-26", "l_commitdate": "1992-07-27", "l_receiptdate": "1992-08-28", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "ages sleep. bold, bo" }
+{ "l_orderkey": 644, "l_partkey": 51, "l_suppkey": 9, "l_linenumber": 7, "l_quantity": 38.0d, "l_extendedprice": 36139.9d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-05-17", "l_commitdate": "1992-07-10", "l_receiptdate": "1992-06-06", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": " packages. blithely slow accounts nag quic" }
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+{ "l_orderkey": 645, "l_partkey": 70, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 46.0d, "l_extendedprice": 44623.22d, "l_discount": 0.1d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-01-04", "l_commitdate": "1995-02-21", "l_receiptdate": "1995-01-21", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": " regular dependencies across the speci" }
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+{ "l_orderkey": 645, "l_partkey": 5, "l_suppkey": 8, "l_linenumber": 5, "l_quantity": 43.0d, "l_extendedprice": 38915.0d, "l_discount": 0.06d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-02-12", "l_commitdate": "1995-02-27", "l_receiptdate": "1995-03-06", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": " furiously accounts. slyly" }
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+{ "l_orderkey": 742, "l_partkey": 101, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 48.0d, "l_extendedprice": 48052.8d, "l_discount": 0.09d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-03-24", "l_commitdate": "1995-01-23", "l_receiptdate": "1995-04-08", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": " platelets " }
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+{ "l_orderkey": 768, "l_partkey": 6, "l_suppkey": 1, "l_linenumber": 3, "l_quantity": 30.0d, "l_extendedprice": 27180.0d, "l_discount": 0.06d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-22", "l_commitdate": "1996-11-03", "l_receiptdate": "1996-10-13", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": " furiously fluffy pinto beans haggle along" }
+{ "l_orderkey": 768, "l_partkey": 25, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 37.0d, "l_extendedprice": 34225.74d, "l_discount": 0.1d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-10-02", "l_commitdate": "1996-09-23", "l_receiptdate": "1996-10-14", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "ending requests across the quickly" }
+{ "l_orderkey": 768, "l_partkey": 47, "l_suppkey": 10, "l_linenumber": 5, "l_quantity": 47.0d, "l_extendedprice": 44510.88d, "l_discount": 0.06d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-11-28", "l_commitdate": "1996-10-30", "l_receiptdate": "1996-12-12", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "foxes. slyly ironic deposits a" }
+{ "l_orderkey": 768, "l_partkey": 112, "l_suppkey": 9, "l_linenumber": 6, "l_quantity": 43.0d, "l_extendedprice": 43520.73d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-22", "l_commitdate": "1996-11-03", "l_receiptdate": "1996-10-22", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "sual ideas wake quickly" }
+{ "l_orderkey": 768, "l_partkey": 49, "l_suppkey": 10, "l_linenumber": 7, "l_quantity": 33.0d, "l_extendedprice": 31318.32d, "l_discount": 0.01d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-06", "l_commitdate": "1996-09-29", "l_receiptdate": "1996-10-01", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "sly ironic instructions. excuses can hagg" }
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+{ "l_orderkey": 769, "l_partkey": 160, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 4.0d, "l_extendedprice": 4240.64d, "l_discount": 0.01d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-06-25", "l_commitdate": "1993-08-12", "l_receiptdate": "1993-07-15", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": " ideas. even" }
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+{ "l_orderkey": 770, "l_partkey": 54, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 25.0d, "l_extendedprice": 23851.25d, "l_discount": 0.03d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-05-26", "l_commitdate": "1998-07-23", "l_receiptdate": "1998-06-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": " deposits dazzle fluffily alongside of " }
+{ "l_orderkey": 771, "l_partkey": 7, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 12.0d, "l_extendedprice": 10884.0d, "l_discount": 0.1d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-18", "l_commitdate": "1995-08-02", "l_receiptdate": "1995-08-07", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "carefully. pending in" }
+{ "l_orderkey": 771, "l_partkey": 161, "l_suppkey": 10, "l_linenumber": 2, "l_quantity": 38.0d, "l_extendedprice": 40324.08d, "l_discount": 0.03d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-22", "l_commitdate": "1995-09-10", "l_receiptdate": "1995-07-29", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": " quickly final requests are final packages." }
+{ "l_orderkey": 771, "l_partkey": 7, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 14.0d, "l_extendedprice": 12698.0d, "l_discount": 0.02d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-31", "l_commitdate": "1995-08-13", "l_receiptdate": "1995-08-07", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "r, final packages are slyly iro" }
+{ "l_orderkey": 771, "l_partkey": 42, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 7.0d, "l_extendedprice": 6594.28d, "l_discount": 0.06d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-06-18", "l_commitdate": "1995-08-31", "l_receiptdate": "1995-06-20", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "theodolites after the fluffily express " }
+{ "l_orderkey": 771, "l_partkey": 78, "l_suppkey": 6, "l_linenumber": 5, "l_quantity": 13.0d, "l_extendedprice": 12714.91d, "l_discount": 0.09d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-10", "l_commitdate": "1995-08-21", "l_receiptdate": "1995-08-30", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "packages affix slyly about the quickly " }
+{ "l_orderkey": 771, "l_partkey": 82, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 23.0d, "l_extendedprice": 22587.84d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-06-19", "l_commitdate": "1995-09-07", "l_receiptdate": "1995-07-09", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "cajole besides the quickly ironic pin" }
+{ "l_orderkey": 772, "l_partkey": 53, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 35.0d, "l_extendedprice": 33356.75d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-07-05", "l_commitdate": "1993-06-05", "l_receiptdate": "1993-08-02", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "kly thin packages wake slowly" }
+{ "l_orderkey": 772, "l_partkey": 84, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 10.0d, "l_extendedprice": 9840.8d, "l_discount": 0.05d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-05-20", "l_commitdate": "1993-05-19", "l_receiptdate": "1993-06-15", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": " deposits cajole carefully instructions. t" }
+{ "l_orderkey": 772, "l_partkey": 86, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 35.0d, "l_extendedprice": 34512.8d, "l_discount": 0.03d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-04-18", "l_commitdate": "1993-06-13", "l_receiptdate": "1993-05-01", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ng ideas. special packages haggle alon" }
+{ "l_orderkey": 772, "l_partkey": 180, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 10.0d, "l_extendedprice": 10801.8d, "l_discount": 0.08d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-17", "l_commitdate": "1993-06-09", "l_receiptdate": "1993-05-29", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "o the furiously final deposits. furi" }
+{ "l_orderkey": 772, "l_partkey": 54, "l_suppkey": 5, "l_linenumber": 5, "l_quantity": 42.0d, "l_extendedprice": 40070.1d, "l_discount": 0.02d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-06-09", "l_commitdate": "1993-07-16", "l_receiptdate": "1993-06-12", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": " express foxes abo" }
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+{ "l_orderkey": 773, "l_partkey": 11, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 31.0d, "l_extendedprice": 28241.31d, "l_discount": 0.02d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-12-30", "l_commitdate": "1993-11-02", "l_receiptdate": "1994-01-01", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "e slyly unusual deposit" }
+{ "l_orderkey": 773, "l_partkey": 151, "l_suppkey": 3, "l_linenumber": 3, "l_quantity": 39.0d, "l_extendedprice": 40994.85d, "l_discount": 0.06d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-01-04", "l_commitdate": "1993-12-23", "l_receiptdate": "1994-01-26", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "quickly eve" }
+{ "l_orderkey": 773, "l_partkey": 29, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 28.0d, "l_extendedprice": 26012.56d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-01-19", "l_commitdate": "1993-11-05", "l_receiptdate": "1994-01-23", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "he furiously slow deposits." }
+{ "l_orderkey": 773, "l_partkey": 134, "l_suppkey": 5, "l_linenumber": 5, "l_quantity": 9.0d, "l_extendedprice": 9307.17d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-10-09", "l_commitdate": "1993-12-25", "l_receiptdate": "1993-11-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ent orbits haggle fluffily after the " }
+{ "l_orderkey": 773, "l_partkey": 40, "l_suppkey": 1, "l_linenumber": 6, "l_quantity": 43.0d, "l_extendedprice": 40421.72d, "l_discount": 0.07d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-11-06", "l_commitdate": "1993-11-20", "l_receiptdate": "1993-11-08", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "furiously bold dependencies. blithel" }
+{ "l_orderkey": 774, "l_partkey": 183, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 49.0d, "l_extendedprice": 53075.82d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-06", "l_commitdate": "1996-01-07", "l_receiptdate": "1995-12-14", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "ess accounts are carefully " }
+{ "l_orderkey": 774, "l_partkey": 17, "l_suppkey": 4, "l_linenumber": 2, "l_quantity": 3.0d, "l_extendedprice": 2751.03d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-13", "l_commitdate": "1996-01-14", "l_receiptdate": "1996-03-04", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": " slyly even courts nag blith" }
+{ "l_orderkey": 774, "l_partkey": 148, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 34.0d, "l_extendedprice": 35636.76d, "l_discount": 0.02d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-16", "l_commitdate": "1996-01-03", "l_receiptdate": "1996-03-22", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "lar excuses are furiously final instr" }
+{ "l_orderkey": 774, "l_partkey": 15, "l_suppkey": 6, "l_linenumber": 4, "l_quantity": 8.0d, "l_extendedprice": 7320.08d, "l_discount": 0.0d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-24", "l_commitdate": "1996-01-15", "l_receiptdate": "1996-02-13", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "ully ironic requests c" }
+{ "l_orderkey": 774, "l_partkey": 177, "l_suppkey": 5, "l_linenumber": 5, "l_quantity": 44.0d, "l_extendedprice": 47395.48d, "l_discount": 0.09d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-02-29", "l_commitdate": "1996-01-16", "l_receiptdate": "1996-03-06", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "s according to the deposits unwind ca" }
+{ "l_orderkey": 774, "l_partkey": 120, "l_suppkey": 1, "l_linenumber": 6, "l_quantity": 2.0d, "l_extendedprice": 2040.24d, "l_discount": 0.07d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-11", "l_commitdate": "1996-02-10", "l_receiptdate": "1995-12-14", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": "accounts; slyly regular" }
+{ "l_orderkey": 775, "l_partkey": 32, "l_suppkey": 3, "l_linenumber": 1, "l_quantity": 16.0d, "l_extendedprice": 14912.48d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "F", "l_shipdate": "1995-05-23", "l_commitdate": "1995-05-07", "l_receiptdate": "1995-06-19", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "un quickly slyly" }
+{ "l_orderkey": 775, "l_partkey": 174, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 21.0d, "l_extendedprice": 22557.57d, "l_discount": 0.01d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-05-01", "l_commitdate": "1995-06-02", "l_receiptdate": "1995-05-13", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": " quickly sile" }
+{ "l_orderkey": 775, "l_partkey": 108, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 20.0d, "l_extendedprice": 20162.0d, "l_discount": 0.01d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "F", "l_shipdate": "1995-06-17", "l_commitdate": "1995-05-22", "l_receiptdate": "1995-07-13", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "en dependencies nag slowly " }
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+{ "l_orderkey": 1221, "l_partkey": 69, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 3.0d, "l_extendedprice": 2907.18d, "l_discount": 0.1d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-07-01", "l_commitdate": "1992-06-04", "l_receiptdate": "1992-07-27", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "ing to the fluffily" }
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+{ "l_orderkey": 1221, "l_partkey": 85, "l_suppkey": 6, "l_linenumber": 6, "l_quantity": 7.0d, "l_extendedprice": 6895.56d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-06-27", "l_commitdate": "1992-06-16", "l_receiptdate": "1992-07-23", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "xpress accounts " }
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+{ "l_orderkey": 1248, "l_partkey": 56, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 26.0d, "l_extendedprice": 24857.3d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-01-16", "l_commitdate": "1992-03-01", "l_receiptdate": "1992-02-06", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": " ironic dependen" }
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+{ "l_orderkey": 1764, "l_partkey": 67, "l_suppkey": 4, "l_linenumber": 2, "l_quantity": 3.0d, "l_extendedprice": 2901.18d, "l_discount": 0.07d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-05-13", "l_commitdate": "1992-06-07", "l_receiptdate": "1992-05-26", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "es wake slowly. " }
+{ "l_orderkey": 1764, "l_partkey": 78, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 27.0d, "l_extendedprice": 26407.89d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-05-06", "l_commitdate": "1992-05-11", "l_receiptdate": "1992-05-23", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "ly final foxes wake blithely even requests" }
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+{ "l_orderkey": 1766, "l_partkey": 111, "l_suppkey": 1, "l_linenumber": 3, "l_quantity": 1.0d, "l_extendedprice": 1011.11d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-21", "l_commitdate": "1997-01-07", "l_receiptdate": "1997-02-19", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "ly blithely pending accounts. reg" }
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+{ "l_orderkey": 1767, "l_partkey": 174, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 24.0d, "l_extendedprice": 25780.08d, "l_discount": 0.06d, "l_tax": 0.03d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-03-16", "l_commitdate": "1995-04-29", "l_receiptdate": "1995-04-11", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "luffy theodolites need to detect furi" }
+{ "l_orderkey": 1767, "l_partkey": 23, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 50.0d, "l_extendedprice": 46151.0d, "l_discount": 0.01d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-05-29", "l_commitdate": "1995-04-14", "l_receiptdate": "1995-06-15", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "y unusual foxe" }
+{ "l_orderkey": 1767, "l_partkey": 52, "l_suppkey": 10, "l_linenumber": 5, "l_quantity": 40.0d, "l_extendedprice": 38082.0d, "l_discount": 0.06d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-04-16", "l_commitdate": "1995-05-06", "l_receiptdate": "1995-04-21", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "ep. accounts nag blithely fu" }
+{ "l_orderkey": 1792, "l_partkey": 88, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 9.0d, "l_extendedprice": 8892.72d, "l_discount": 0.09d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-28", "l_commitdate": "1993-12-11", "l_receiptdate": "1994-03-12", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "final packages s" }
+{ "l_orderkey": 1792, "l_partkey": 9, "l_suppkey": 6, "l_linenumber": 2, "l_quantity": 5.0d, "l_extendedprice": 4545.0d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-13", "l_commitdate": "1994-01-03", "l_receiptdate": "1994-02-28", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "ely regular accounts are slyly. pending, bo" }
+{ "l_orderkey": 1792, "l_partkey": 9, "l_suppkey": 2, "l_linenumber": 3, "l_quantity": 8.0d, "l_extendedprice": 7272.0d, "l_discount": 0.01d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-02-21", "l_commitdate": "1994-01-26", "l_receiptdate": "1994-02-27", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "nts. fluffily special instructions integr" }
+{ "l_orderkey": 1792, "l_partkey": 191, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 45.0d, "l_extendedprice": 49103.55d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-02-27", "l_commitdate": "1993-12-24", "l_receiptdate": "1994-03-07", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "ests are. ironic, regular asy" }
+{ "l_orderkey": 1792, "l_partkey": 199, "l_suppkey": 2, "l_linenumber": 5, "l_quantity": 35.0d, "l_extendedprice": 38471.65d, "l_discount": 0.06d, "l_tax": 0.05d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-01-31", "l_commitdate": "1994-01-20", "l_receiptdate": "1994-02-17", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "e against the quic" }
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+{ "l_orderkey": 1793, "l_partkey": 126, "l_suppkey": 9, "l_linenumber": 2, "l_quantity": 4.0d, "l_extendedprice": 4104.48d, "l_discount": 0.07d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-07-28", "l_commitdate": "1992-08-26", "l_receiptdate": "1992-08-21", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "nic foxes along the even" }
+{ "l_orderkey": 1793, "l_partkey": 131, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 6.0d, "l_extendedprice": 6186.78d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-09-21", "l_commitdate": "1992-09-05", "l_receiptdate": "1992-10-01", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "uctions; depo" }
+{ "l_orderkey": 1793, "l_partkey": 118, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 4.0d, "l_extendedprice": 4072.44d, "l_discount": 0.0d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-09-27", "l_commitdate": "1992-09-21", "l_receiptdate": "1992-10-07", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "equests nod ac" }
+{ "l_orderkey": 1793, "l_partkey": 25, "l_suppkey": 6, "l_linenumber": 5, "l_quantity": 42.0d, "l_extendedprice": 38850.84d, "l_discount": 0.03d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-10-13", "l_commitdate": "1992-10-02", "l_receiptdate": "1992-11-06", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "uctions sleep carefully special, fl" }
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+{ "l_orderkey": 2277, "l_partkey": 137, "l_suppkey": 8, "l_linenumber": 1, "l_quantity": 38.0d, "l_extendedprice": 39410.94d, "l_discount": 0.03d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-04-23", "l_commitdate": "1995-03-25", "l_receiptdate": "1995-05-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "fully bold" }
+{ "l_orderkey": 2277, "l_partkey": 8, "l_suppkey": 1, "l_linenumber": 2, "l_quantity": 2.0d, "l_extendedprice": 1816.0d, "l_discount": 0.1d, "l_tax": 0.08d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-02-01", "l_commitdate": "1995-02-04", "l_receiptdate": "1995-03-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "endencies sleep idly pending p" }
+{ "l_orderkey": 2277, "l_partkey": 198, "l_suppkey": 10, "l_linenumber": 3, "l_quantity": 4.0d, "l_extendedprice": 4392.76d, "l_discount": 0.05d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-04-27", "l_commitdate": "1995-03-16", "l_receiptdate": "1995-04-29", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "SHIP", "l_comment": ". quickly unusual deposi" }
+{ "l_orderkey": 2277, "l_partkey": 159, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 31.0d, "l_extendedprice": 32833.65d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-03-07", "l_commitdate": "1995-03-19", "l_receiptdate": "1995-03-26", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ic instructions detect ru" }
+{ "l_orderkey": 2278, "l_partkey": 45, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 36.0d, "l_extendedprice": 34021.44d, "l_discount": 0.04d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-06-04", "l_commitdate": "1998-06-06", "l_receiptdate": "1998-06-30", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "y ironic pinto beans br" }
+{ "l_orderkey": 2278, "l_partkey": 45, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 50.0d, "l_extendedprice": 47252.0d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-08-09", "l_commitdate": "1998-07-08", "l_receiptdate": "1998-09-05", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "into beans. blit" }
+{ "l_orderkey": 2278, "l_partkey": 97, "l_suppkey": 9, "l_linenumber": 3, "l_quantity": 22.0d, "l_extendedprice": 21935.98d, "l_discount": 0.03d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-05-15", "l_commitdate": "1998-07-14", "l_receiptdate": "1998-06-04", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "ep regular accounts. blithely even" }
+{ "l_orderkey": 2279, "l_partkey": 14, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 12.0d, "l_extendedprice": 10968.12d, "l_discount": 0.07d, "l_tax": 0.08d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-10", "l_commitdate": "1993-03-25", "l_receiptdate": "1993-06-02", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "lets across the excuses nag quickl" }
+{ "l_orderkey": 2279, "l_partkey": 41, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 38.0d, "l_extendedprice": 35759.52d, "l_discount": 0.08d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-06-09", "l_commitdate": "1993-04-06", "l_receiptdate": "1993-06-26", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "s above the furiously express dep" }
+{ "l_orderkey": 2279, "l_partkey": 4, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 3.0d, "l_extendedprice": 2712.0d, "l_discount": 0.09d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-31", "l_commitdate": "1993-05-07", "l_receiptdate": "1993-06-05", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "ing foxes above the even accounts use slyly" }
+{ "l_orderkey": 2279, "l_partkey": 52, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 42.0d, "l_extendedprice": 39986.1d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-02-28", "l_commitdate": "1993-04-25", "l_receiptdate": "1993-03-02", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": " above the furiously ironic deposits. " }
+{ "l_orderkey": 2279, "l_partkey": 169, "l_suppkey": 8, "l_linenumber": 5, "l_quantity": 9.0d, "l_extendedprice": 9622.44d, "l_discount": 0.05d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-05-21", "l_commitdate": "1993-03-29", "l_receiptdate": "1993-06-17", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "ns cajole after the final platelets. s" }
+{ "l_orderkey": 2279, "l_partkey": 147, "l_suppkey": 10, "l_linenumber": 6, "l_quantity": 12.0d, "l_extendedprice": 12565.68d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-05-04", "l_commitdate": "1993-04-26", "l_receiptdate": "1993-05-28", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "ccounts. slyl" }
+{ "l_orderkey": 2279, "l_partkey": 119, "l_suppkey": 9, "l_linenumber": 7, "l_quantity": 32.0d, "l_extendedprice": 32611.52d, "l_discount": 0.05d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-04-20", "l_commitdate": "1993-05-22", "l_receiptdate": "1993-05-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "re quickly. furiously ironic ide" }
+{ "l_orderkey": 2304, "l_partkey": 200, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 42.0d, "l_extendedprice": 46208.4d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-01-20", "l_commitdate": "1994-03-04", "l_receiptdate": "1994-02-05", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "quests are blithely alongside of" }
+{ "l_orderkey": 2304, "l_partkey": 19, "l_suppkey": 9, "l_linenumber": 2, "l_quantity": 48.0d, "l_extendedprice": 44112.48d, "l_discount": 0.0d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-12", "l_commitdate": "1994-02-16", "l_receiptdate": "1994-03-10", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": " deposits cajole blithely e" }
+{ "l_orderkey": 2304, "l_partkey": 48, "l_suppkey": 9, "l_linenumber": 3, "l_quantity": 3.0d, "l_extendedprice": 2844.12d, "l_discount": 0.0d, "l_tax": 0.05d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-03-19", "l_commitdate": "1994-03-04", "l_receiptdate": "1994-03-20", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "l excuses after the ev" }
+{ "l_orderkey": 2305, "l_partkey": 174, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 3.0d, "l_extendedprice": 3222.51d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-03-24", "l_commitdate": "1993-04-05", "l_receiptdate": "1993-03-29", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "kages haggle quickly across the blithely " }
+{ "l_orderkey": 2305, "l_partkey": 60, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 39.0d, "l_extendedprice": 37442.34d, "l_discount": 0.07d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-04-16", "l_commitdate": "1993-04-17", "l_receiptdate": "1993-04-22", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ms after the foxes " }
+{ "l_orderkey": 2305, "l_partkey": 102, "l_suppkey": 3, "l_linenumber": 3, "l_quantity": 32.0d, "l_extendedprice": 32067.2d, "l_discount": 0.03d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-04-02", "l_commitdate": "1993-03-18", "l_receiptdate": "1993-04-03", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": " haggle caref" }
+{ "l_orderkey": 2305, "l_partkey": 112, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 17.0d, "l_extendedprice": 17205.87d, "l_discount": 0.0d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-02-21", "l_commitdate": "1993-03-30", "l_receiptdate": "1993-03-19", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": " carefully alongside of " }
+{ "l_orderkey": 2305, "l_partkey": 155, "l_suppkey": 7, "l_linenumber": 5, "l_quantity": 26.0d, "l_extendedprice": 27433.9d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-14", "l_commitdate": "1993-02-28", "l_receiptdate": "1993-06-04", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "arefully final theodo" }
+{ "l_orderkey": 2305, "l_partkey": 51, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 7.0d, "l_extendedprice": 6657.35d, "l_discount": 0.06d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-05-15", "l_commitdate": "1993-04-25", "l_receiptdate": "1993-06-09", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "gular deposits boost about the foxe" }
+{ "l_orderkey": 2306, "l_partkey": 196, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 50.0d, "l_extendedprice": 54809.5d, "l_discount": 0.09d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-07-27", "l_commitdate": "1995-09-26", "l_receiptdate": "1995-08-06", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "y quickly " }
+{ "l_orderkey": 2306, "l_partkey": 149, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 39.0d, "l_extendedprice": 40916.46d, "l_discount": 0.04d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-07", "l_commitdate": "1995-09-13", "l_receiptdate": "1995-10-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "f the slyly unusual accounts. furiousl" }
+{ "l_orderkey": 2306, "l_partkey": 178, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 35.0d, "l_extendedprice": 37735.95d, "l_discount": 0.01d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-18", "l_commitdate": "1995-08-30", "l_receiptdate": "1995-08-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "raids along the furiously unusual asympto" }
+{ "l_orderkey": 2306, "l_partkey": 119, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 21.0d, "l_extendedprice": 21401.31d, "l_discount": 0.06d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-10-07", "l_commitdate": "1995-09-18", "l_receiptdate": "1995-10-17", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": " ironic pinto " }
+{ "l_orderkey": 2306, "l_partkey": 142, "l_suppkey": 9, "l_linenumber": 5, "l_quantity": 42.0d, "l_extendedprice": 43769.88d, "l_discount": 0.04d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-05", "l_commitdate": "1995-08-25", "l_receiptdate": "1995-09-28", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "furiously final acco" }
+{ "l_orderkey": 2306, "l_partkey": 124, "l_suppkey": 5, "l_linenumber": 6, "l_quantity": 29.0d, "l_extendedprice": 29699.48d, "l_discount": 0.0d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-11-01", "l_commitdate": "1995-09-01", "l_receiptdate": "1995-11-22", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "uld have to mold. s" }
+{ "l_orderkey": 2306, "l_partkey": 176, "l_suppkey": 4, "l_linenumber": 7, "l_quantity": 19.0d, "l_extendedprice": 20447.23d, "l_discount": 0.07d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-11-17", "l_commitdate": "1995-09-06", "l_receiptdate": "1995-11-30", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "tainments nag furiously carefull" }
+{ "l_orderkey": 2307, "l_partkey": 142, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 24.0d, "l_extendedprice": 25011.36d, "l_discount": 0.1d, "l_tax": 0.05d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-10-07", "l_commitdate": "1993-08-05", "l_receiptdate": "1993-10-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "stealthily special packages nag a" }
+{ "l_orderkey": 2307, "l_partkey": 140, "l_suppkey": 6, "l_linenumber": 2, "l_quantity": 2.0d, "l_extendedprice": 2080.28d, "l_discount": 0.01d, "l_tax": 0.0d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-09-21", "l_commitdate": "1993-08-22", "l_receiptdate": "1993-10-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "ously. furiously furious requ" }
+{ "l_orderkey": 2307, "l_partkey": 34, "l_suppkey": 10, "l_linenumber": 3, "l_quantity": 7.0d, "l_extendedprice": 6538.21d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-08-03", "l_commitdate": "1993-09-04", "l_receiptdate": "1993-08-28", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "ven instructions wake fluffily " }
+{ "l_orderkey": 2307, "l_partkey": 165, "l_suppkey": 6, "l_linenumber": 4, "l_quantity": 19.0d, "l_extendedprice": 20238.04d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-10-23", "l_commitdate": "1993-09-09", "l_receiptdate": "1993-11-09", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "olites haggle furiously around the " }
+{ "l_orderkey": 2307, "l_partkey": 143, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 7.0d, "l_extendedprice": 7301.98d, "l_discount": 0.01d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-09-01", "l_commitdate": "1993-08-08", "l_receiptdate": "1993-09-29", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": " packages cajo" }
+{ "l_orderkey": 2308, "l_partkey": 118, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 24.0d, "l_extendedprice": 24434.64d, "l_discount": 0.06d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-02-23", "l_commitdate": "1992-12-24", "l_receiptdate": "1993-03-10", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "ts sleep. busy excuses along the s" }
+{ "l_orderkey": 2308, "l_partkey": 56, "l_suppkey": 1, "l_linenumber": 2, "l_quantity": 36.0d, "l_extendedprice": 34417.8d, "l_discount": 0.05d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-11-11", "l_commitdate": "1992-11-27", "l_receiptdate": "1992-11-23", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "ong the pending hockey players. blithe" }
+{ "l_orderkey": 2309, "l_partkey": 170, "l_suppkey": 7, "l_linenumber": 1, "l_quantity": 14.0d, "l_extendedprice": 14982.38d, "l_discount": 0.1d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-01", "l_commitdate": "1995-10-22", "l_receiptdate": "1996-01-23", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "asymptotes. furiously pending acco" }
+{ "l_orderkey": 2309, "l_partkey": 169, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 1.0d, "l_extendedprice": 1069.16d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-08", "l_commitdate": "1995-11-03", "l_receiptdate": "1995-12-31", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "eposits alongside of the final re" }
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+{ "l_orderkey": 2531, "l_partkey": 86, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 20.0d, "l_extendedprice": 19721.6d, "l_discount": 0.06d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-18", "l_commitdate": "1996-06-25", "l_receiptdate": "1996-07-29", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "into beans. furious" }
+{ "l_orderkey": 2531, "l_partkey": 191, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 36.0d, "l_extendedprice": 39282.84d, "l_discount": 0.08d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-11", "l_commitdate": "1996-07-26", "l_receiptdate": "1996-06-27", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "y ironic, bold packages. blithely e" }
+{ "l_orderkey": 2531, "l_partkey": 56, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 28.0d, "l_extendedprice": 26769.4d, "l_discount": 0.03d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-06", "l_commitdate": "1996-07-31", "l_receiptdate": "1996-07-19", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "its. busily" }
+{ "l_orderkey": 2531, "l_partkey": 145, "l_suppkey": 4, "l_linenumber": 6, "l_quantity": 46.0d, "l_extendedprice": 48076.44d, "l_discount": 0.1d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-03", "l_commitdate": "1996-06-27", "l_receiptdate": "1996-07-12", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "e final, bold pains. ir" }
+{ "l_orderkey": 2532, "l_partkey": 53, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 3.0d, "l_extendedprice": 2859.15d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-14", "l_commitdate": "1995-11-28", "l_receiptdate": "1995-12-15", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "unusual sentiments. even pinto" }
+{ "l_orderkey": 2532, "l_partkey": 160, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 33.0d, "l_extendedprice": 34985.28d, "l_discount": 0.06d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-11-23", "l_commitdate": "1996-01-04", "l_receiptdate": "1995-12-16", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "rve carefully slyly ironic accounts! fluf" }
+{ "l_orderkey": 2532, "l_partkey": 135, "l_suppkey": 1, "l_linenumber": 3, "l_quantity": 1.0d, "l_extendedprice": 1035.13d, "l_discount": 0.0d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-01-27", "l_commitdate": "1995-11-23", "l_receiptdate": "1996-01-29", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "ely final ideas cajole despite the ca" }
+{ "l_orderkey": 2532, "l_partkey": 78, "l_suppkey": 8, "l_linenumber": 4, "l_quantity": 50.0d, "l_extendedprice": 48903.5d, "l_discount": 0.02d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-11-13", "l_commitdate": "1996-01-01", "l_receiptdate": "1995-11-26", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "yly after the fluffily regul" }
+{ "l_orderkey": 2532, "l_partkey": 114, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 9.0d, "l_extendedprice": 9126.99d, "l_discount": 0.09d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-11-30", "l_commitdate": "1995-11-23", "l_receiptdate": "1995-12-12", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "cial ideas haggle slyly pending request" }
+{ "l_orderkey": 2532, "l_partkey": 150, "l_suppkey": 1, "l_linenumber": 6, "l_quantity": 20.0d, "l_extendedprice": 21003.0d, "l_discount": 0.09d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-02", "l_commitdate": "1995-11-26", "l_receiptdate": "1995-12-08", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "er the slyly pending" }
+{ "l_orderkey": 2533, "l_partkey": 54, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 36.0d, "l_extendedprice": 34345.8d, "l_discount": 0.06d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-10", "l_commitdate": "1997-04-28", "l_receiptdate": "1997-07-01", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "ss requests sleep neve" }
+{ "l_orderkey": 2533, "l_partkey": 198, "l_suppkey": 10, "l_linenumber": 2, "l_quantity": 5.0d, "l_extendedprice": 5490.95d, "l_discount": 0.1d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-26", "l_commitdate": "1997-06-02", "l_receiptdate": "1997-06-24", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ccounts. ironic, special accounts boo" }
+{ "l_orderkey": 2533, "l_partkey": 183, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 37.0d, "l_extendedprice": 40077.66d, "l_discount": 0.0d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-10", "l_commitdate": "1997-04-26", "l_receiptdate": "1997-05-28", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": " haggle carefully " }
+{ "l_orderkey": 2533, "l_partkey": 30, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 17.0d, "l_extendedprice": 15810.51d, "l_discount": 0.06d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-23", "l_commitdate": "1997-05-10", "l_receiptdate": "1997-06-18", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ackages. blith" }
+{ "l_orderkey": 2533, "l_partkey": 126, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 38.0d, "l_extendedprice": 38992.56d, "l_discount": 0.09d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-05-10", "l_commitdate": "1997-06-02", "l_receiptdate": "1997-05-28", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "of the regular accounts. even packages caj" }
+{ "l_orderkey": 2533, "l_partkey": 184, "l_suppkey": 5, "l_linenumber": 6, "l_quantity": 20.0d, "l_extendedprice": 21683.6d, "l_discount": 0.05d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-07-04", "l_commitdate": "1997-04-30", "l_receiptdate": "1997-07-05", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "thless excuses are b" }
+{ "l_orderkey": 2533, "l_partkey": 94, "l_suppkey": 7, "l_linenumber": 7, "l_quantity": 14.0d, "l_extendedprice": 13917.26d, "l_discount": 0.06d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-07-06", "l_commitdate": "1997-05-08", "l_receiptdate": "1997-08-03", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "ut the pending, special depos" }
+{ "l_orderkey": 2534, "l_partkey": 139, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 29.0d, "l_extendedprice": 30134.77d, "l_discount": 0.07d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-09", "l_commitdate": "1996-09-29", "l_receiptdate": "1996-08-11", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "ugouts haggle slyly. final" }
+{ "l_orderkey": 2534, "l_partkey": 27, "l_suppkey": 6, "l_linenumber": 2, "l_quantity": 49.0d, "l_extendedprice": 45423.98d, "l_discount": 0.08d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-01", "l_commitdate": "1996-08-20", "l_receiptdate": "1996-09-06", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "sometimes regular requests. blithely unus" }
+{ "l_orderkey": 2534, "l_partkey": 1, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 50.0d, "l_extendedprice": 45050.0d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-25", "l_commitdate": "1996-10-07", "l_receiptdate": "1996-10-09", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "ideas. deposits use. slyly regular pa" }
+{ "l_orderkey": 2534, "l_partkey": 75, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 43.0d, "l_extendedprice": 41928.01d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-10-25", "l_commitdate": "1996-09-30", "l_receiptdate": "1996-11-05", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "ngly final depos" }
+{ "l_orderkey": 2534, "l_partkey": 165, "l_suppkey": 2, "l_linenumber": 5, "l_quantity": 14.0d, "l_extendedprice": 14912.24d, "l_discount": 0.05d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-12", "l_commitdate": "1996-09-26", "l_receiptdate": "1996-08-28", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "eposits doze quickly final" }
+{ "l_orderkey": 2534, "l_partkey": 116, "l_suppkey": 10, "l_linenumber": 6, "l_quantity": 12.0d, "l_extendedprice": 12193.32d, "l_discount": 0.02d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-29", "l_commitdate": "1996-10-12", "l_receiptdate": "1996-08-14", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "sual depos" }
+{ "l_orderkey": 2534, "l_partkey": 173, "l_suppkey": 3, "l_linenumber": 7, "l_quantity": 17.0d, "l_extendedprice": 18243.89d, "l_discount": 0.02d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-22", "l_commitdate": "1996-09-15", "l_receiptdate": "1996-08-03", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "riously regular " }
+{ "l_orderkey": 2535, "l_partkey": 199, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 5.0d, "l_extendedprice": 5495.95d, "l_discount": 0.06d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-09-07", "l_commitdate": "1993-07-25", "l_receiptdate": "1993-09-29", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": ", unusual reque" }
+{ "l_orderkey": 2535, "l_partkey": 39, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 12.0d, "l_extendedprice": 11268.36d, "l_discount": 0.08d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-07-17", "l_commitdate": "1993-08-17", "l_receiptdate": "1993-07-31", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "uses sleep among the packages. excuses " }
+{ "l_orderkey": 2535, "l_partkey": 54, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 5.0d, "l_extendedprice": 4770.25d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-07-28", "l_commitdate": "1993-08-14", "l_receiptdate": "1993-08-11", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": " across the express requests. silent, eve" }
+{ "l_orderkey": 2535, "l_partkey": 160, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 19.0d, "l_extendedprice": 20143.04d, "l_discount": 0.01d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-06-01", "l_commitdate": "1993-08-01", "l_receiptdate": "1993-06-19", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "ructions. final requests" }
+{ "l_orderkey": 2535, "l_partkey": 174, "l_suppkey": 3, "l_linenumber": 5, "l_quantity": 25.0d, "l_extendedprice": 26854.25d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-07-19", "l_commitdate": "1993-08-07", "l_receiptdate": "1993-07-27", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "ions believe ab" }
+{ "l_orderkey": 2560, "l_partkey": 169, "l_suppkey": 10, "l_linenumber": 1, "l_quantity": 41.0d, "l_extendedprice": 43835.56d, "l_discount": 0.07d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-10-23", "l_commitdate": "1992-11-11", "l_receiptdate": "1992-11-22", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": " after the accounts. regular foxes are be" }
+{ "l_orderkey": 2560, "l_partkey": 4, "l_suppkey": 9, "l_linenumber": 2, "l_quantity": 27.0d, "l_extendedprice": 24408.0d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-12-03", "l_commitdate": "1992-11-16", "l_receiptdate": "1992-12-30", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": " against the carefully" }
+{ "l_orderkey": 2560, "l_partkey": 46, "l_suppkey": 5, "l_linenumber": 3, "l_quantity": 31.0d, "l_extendedprice": 29327.24d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-11-14", "l_commitdate": "1992-10-14", "l_receiptdate": "1992-12-11", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "to beans. blithely regular Tiresias int" }
+{ "l_orderkey": 2560, "l_partkey": 72, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 36.0d, "l_extendedprice": 34994.52d, "l_discount": 0.01d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-10-18", "l_commitdate": "1992-10-30", "l_receiptdate": "1992-11-05", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "accounts alongside of the excuses are " }
+{ "l_orderkey": 2560, "l_partkey": 42, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 9.0d, "l_extendedprice": 8478.36d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-10-23", "l_commitdate": "1992-10-29", "l_receiptdate": "1992-11-02", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": " deposits affix quickly. unusual, eve" }
+{ "l_orderkey": 2560, "l_partkey": 108, "l_suppkey": 9, "l_linenumber": 6, "l_quantity": 13.0d, "l_extendedprice": 13105.3d, "l_discount": 0.03d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-09-07", "l_commitdate": "1992-10-21", "l_receiptdate": "1992-09-24", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "slyly final accoun" }
+{ "l_orderkey": 2561, "l_partkey": 25, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 32.0d, "l_extendedprice": 29600.64d, "l_discount": 0.02d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-01-05", "l_commitdate": "1997-12-28", "l_receiptdate": "1998-01-26", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "bold packages wake slyly. slyly" }
+{ "l_orderkey": 2561, "l_partkey": 98, "l_suppkey": 1, "l_linenumber": 2, "l_quantity": 5.0d, "l_extendedprice": 4990.45d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-12-27", "l_commitdate": "1998-01-23", "l_receiptdate": "1998-01-13", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "p ironic, regular pinto beans." }
+{ "l_orderkey": 2561, "l_partkey": 173, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 47.0d, "l_extendedprice": 50438.99d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-11-19", "l_commitdate": "1998-01-21", "l_receiptdate": "1997-12-03", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "larly pending t" }
+{ "l_orderkey": 2561, "l_partkey": 108, "l_suppkey": 9, "l_linenumber": 4, "l_quantity": 39.0d, "l_extendedprice": 39315.9d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-01-20", "l_commitdate": "1997-12-16", "l_receiptdate": "1998-02-05", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "equests are furiously against the" }
+{ "l_orderkey": 2561, "l_partkey": 150, "l_suppkey": 3, "l_linenumber": 5, "l_quantity": 2.0d, "l_extendedprice": 2100.3d, "l_discount": 0.04d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-03-14", "l_commitdate": "1998-01-21", "l_receiptdate": "1998-03-27", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "s are. silently silent foxes sleep about" }
+{ "l_orderkey": 2561, "l_partkey": 51, "l_suppkey": 6, "l_linenumber": 6, "l_quantity": 14.0d, "l_extendedprice": 13314.7d, "l_discount": 0.02d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-03-07", "l_commitdate": "1998-02-04", "l_receiptdate": "1998-03-21", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "ep unusual, ironic accounts" }
+{ "l_orderkey": 2562, "l_partkey": 53, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 28.0d, "l_extendedprice": 26685.4d, "l_discount": 0.04d, "l_tax": 0.03d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-10-04", "l_commitdate": "1992-09-24", "l_receiptdate": "1992-10-09", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ans haggle special, special packages. " }
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+{ "l_orderkey": 2886, "l_partkey": 184, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 38.0d, "l_extendedprice": 41198.84d, "l_discount": 0.02d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-01-21", "l_commitdate": "1995-01-08", "l_receiptdate": "1995-01-30", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "old requests along the fur" }
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+{ "l_orderkey": 3269, "l_partkey": 83, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 37.0d, "l_extendedprice": 36373.96d, "l_discount": 0.07d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-14", "l_commitdate": "1996-04-27", "l_receiptdate": "1996-07-07", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "egular requests. carefully un" }
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+{ "l_orderkey": 3269, "l_partkey": 131, "l_suppkey": 7, "l_linenumber": 6, "l_quantity": 16.0d, "l_extendedprice": 16498.08d, "l_discount": 0.01d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-03-03", "l_commitdate": "1996-04-06", "l_receiptdate": "1996-03-06", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "s cajole. silent deposits are f" }
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+{ "l_orderkey": 3270, "l_partkey": 117, "l_suppkey": 1, "l_linenumber": 7, "l_quantity": 9.0d, "l_extendedprice": 9153.99d, "l_discount": 0.06d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-08-14", "l_commitdate": "1997-08-11", "l_receiptdate": "1997-09-09", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "ual packages" }
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+{ "l_orderkey": 3271, "l_partkey": 54, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 18.0d, "l_extendedprice": 17172.9d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-05-01", "l_commitdate": "1992-03-28", "l_receiptdate": "1992-05-29", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": " packages eat around the furiously regul" }
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+{ "l_orderkey": 3271, "l_partkey": 64, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 29.0d, "l_extendedprice": 27957.74d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-03-10", "l_commitdate": "1992-02-05", "l_receiptdate": "1992-03-14", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "lar instructions. carefully regular" }
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+{ "l_orderkey": 3298, "l_partkey": 186, "l_suppkey": 7, "l_linenumber": 2, "l_quantity": 27.0d, "l_extendedprice": 29326.86d, "l_discount": 0.06d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-10", "l_commitdate": "1996-05-21", "l_receiptdate": "1996-07-15", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "lar packages. regular deposit" }
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+{ "l_orderkey": 3298, "l_partkey": 191, "l_suppkey": 5, "l_linenumber": 4, "l_quantity": 1.0d, "l_extendedprice": 1091.19d, "l_discount": 0.1d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-07-31", "l_commitdate": "1996-05-23", "l_receiptdate": "1996-08-24", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "refully regular requ" }
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+{ "l_orderkey": 3619, "l_partkey": 48, "l_suppkey": 7, "l_linenumber": 3, "l_quantity": 46.0d, "l_extendedprice": 43609.84d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-01-31", "l_commitdate": "1997-01-27", "l_receiptdate": "1997-02-11", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "press, expres" }
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+{ "l_orderkey": 3619, "l_partkey": 120, "l_suppkey": 10, "l_linenumber": 5, "l_quantity": 38.0d, "l_extendedprice": 38764.56d, "l_discount": 0.05d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-12-08", "l_commitdate": "1997-02-03", "l_receiptdate": "1997-01-07", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "theodolites detect abo" }
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+{ "l_orderkey": 3623, "l_partkey": 88, "l_suppkey": 9, "l_linenumber": 5, "l_quantity": 30.0d, "l_extendedprice": 29642.4d, "l_discount": 0.1d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-04-04", "l_commitdate": "1997-03-03", "l_receiptdate": "1997-05-01", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": " ironic somas sleep fluffily" }
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+{ "l_orderkey": 3648, "l_partkey": 105, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 30.0d, "l_extendedprice": 30153.0d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-08-31", "l_commitdate": "1993-09-06", "l_receiptdate": "1993-09-06", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": " above the somas boost furious" }
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+{ "l_orderkey": 3751, "l_partkey": 65, "l_suppkey": 2, "l_linenumber": 3, "l_quantity": 45.0d, "l_extendedprice": 43427.7d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-05-27", "l_commitdate": "1994-06-19", "l_receiptdate": "1994-06-14", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "according to " }
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+{ "l_orderkey": 4832, "l_partkey": 149, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 4.0d, "l_extendedprice": 4196.56d, "l_discount": 0.04d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-01-16", "l_commitdate": "1998-02-12", "l_receiptdate": "1998-02-08", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": "ages. slyly express deposits cajole car" }
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+{ "l_orderkey": 4833, "l_partkey": 18, "l_suppkey": 9, "l_linenumber": 3, "l_quantity": 26.0d, "l_extendedprice": 23868.26d, "l_discount": 0.08d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-05-13", "l_commitdate": "1996-07-12", "l_receiptdate": "1996-05-31", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "s packages. even gif" }
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+{ "l_orderkey": 4833, "l_partkey": 35, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 4.0d, "l_extendedprice": 3740.12d, "l_discount": 0.1d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-16", "l_commitdate": "1996-06-29", "l_receiptdate": "1996-08-22", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "y pending packages sleep blithely regular r" }
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+{ "l_orderkey": 5637, "l_partkey": 172, "l_suppkey": 3, "l_linenumber": 2, "l_quantity": 35.0d, "l_extendedprice": 37525.95d, "l_discount": 0.09d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-01", "l_commitdate": "1996-08-04", "l_receiptdate": "1996-08-20", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "s sleep blithely alongside of the ironic" }
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+{ "l_orderkey": 5637, "l_partkey": 66, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 16.0d, "l_extendedprice": 15456.96d, "l_discount": 0.03d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-09-08", "l_commitdate": "1996-08-31", "l_receiptdate": "1996-09-29", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "d packages. express requests" }
+{ "l_orderkey": 5637, "l_partkey": 196, "l_suppkey": 7, "l_linenumber": 5, "l_quantity": 10.0d, "l_extendedprice": 10961.9d, "l_discount": 0.01d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-25", "l_commitdate": "1996-08-11", "l_receiptdate": "1996-09-23", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ickly ironic gifts. blithely even cour" }
+{ "l_orderkey": 5637, "l_partkey": 129, "l_suppkey": 4, "l_linenumber": 6, "l_quantity": 27.0d, "l_extendedprice": 27786.24d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-27", "l_commitdate": "1996-08-09", "l_receiptdate": "1996-07-27", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "oss the carefully express warhorses" }
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+{ "l_orderkey": 5664, "l_partkey": 173, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 9.0d, "l_extendedprice": 9658.53d, "l_discount": 0.07d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-07-31", "l_commitdate": "1998-08-26", "l_receiptdate": "1998-08-12", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": " ironic deposits haggle furiously. re" }
+{ "l_orderkey": 5664, "l_partkey": 53, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 31.0d, "l_extendedprice": 29544.55d, "l_discount": 0.01d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-11-10", "l_commitdate": "1998-09-12", "l_receiptdate": "1998-12-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "ainst the never silent request" }
+{ "l_orderkey": 5664, "l_partkey": 138, "l_suppkey": 9, "l_linenumber": 4, "l_quantity": 33.0d, "l_extendedprice": 34258.29d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-08-29", "l_commitdate": "1998-09-17", "l_receiptdate": "1998-09-25", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "d the final " }
+{ "l_orderkey": 5664, "l_partkey": 112, "l_suppkey": 2, "l_linenumber": 5, "l_quantity": 44.0d, "l_extendedprice": 44532.84d, "l_discount": 0.01d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-09-24", "l_commitdate": "1998-09-26", "l_receiptdate": "1998-10-23", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "ang thinly bold pa" }
+{ "l_orderkey": 5664, "l_partkey": 68, "l_suppkey": 5, "l_linenumber": 6, "l_quantity": 34.0d, "l_extendedprice": 32914.04d, "l_discount": 0.09d, "l_tax": 0.01d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-09-10", "l_commitdate": "1998-10-05", "l_receiptdate": "1998-09-15", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "st. fluffily pending foxes na" }
+{ "l_orderkey": 5664, "l_partkey": 182, "l_suppkey": 3, "l_linenumber": 7, "l_quantity": 9.0d, "l_extendedprice": 9739.62d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-11-04", "l_commitdate": "1998-10-15", "l_receiptdate": "1998-11-20", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "yly. express ideas agai" }
+{ "l_orderkey": 5665, "l_partkey": 101, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 32.0d, "l_extendedprice": 32035.2d, "l_discount": 0.0d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-08-11", "l_commitdate": "1993-08-01", "l_receiptdate": "1993-09-07", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "f the slyly even requests! regular request" }
+{ "l_orderkey": 5665, "l_partkey": 5, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 14.0d, "l_extendedprice": 12670.0d, "l_discount": 0.02d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-06-29", "l_commitdate": "1993-09-16", "l_receiptdate": "1993-07-16", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "AIR", "l_comment": "- special pinto beans sleep quickly blithel" }
+{ "l_orderkey": 5665, "l_partkey": 158, "l_suppkey": 9, "l_linenumber": 3, "l_quantity": 41.0d, "l_extendedprice": 43384.15d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-08-23", "l_commitdate": "1993-09-22", "l_receiptdate": "1993-09-11", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": " idle ideas across " }
+{ "l_orderkey": 5665, "l_partkey": 46, "l_suppkey": 9, "l_linenumber": 4, "l_quantity": 47.0d, "l_extendedprice": 44463.88d, "l_discount": 0.01d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-10-06", "l_commitdate": "1993-09-19", "l_receiptdate": "1993-11-01", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "s mold fluffily. final deposits along the" }
+{ "l_orderkey": 5666, "l_partkey": 122, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 7.0d, "l_extendedprice": 7154.84d, "l_discount": 0.09d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-05-10", "l_commitdate": "1994-04-06", "l_receiptdate": "1994-05-21", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": " ideas. regular packag" }
+{ "l_orderkey": 5666, "l_partkey": 36, "l_suppkey": 7, "l_linenumber": 2, "l_quantity": 14.0d, "l_extendedprice": 13104.42d, "l_discount": 0.08d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-02-27", "l_commitdate": "1994-04-11", "l_receiptdate": "1994-03-06", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "lar deposits nag against the slyly final d" }
+{ "l_orderkey": 5666, "l_partkey": 193, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 39.0d, "l_extendedprice": 42634.41d, "l_discount": 0.0d, "l_tax": 0.01d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-05-13", "l_commitdate": "1994-04-02", "l_receiptdate": "1994-06-12", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "the even, final foxes. quickly iron" }
+{ "l_orderkey": 5666, "l_partkey": 131, "l_suppkey": 2, "l_linenumber": 4, "l_quantity": 24.0d, "l_extendedprice": 24747.12d, "l_discount": 0.07d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-02-14", "l_commitdate": "1994-03-09", "l_receiptdate": "1994-03-06", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "on the carefully pending asympto" }
+{ "l_orderkey": 5666, "l_partkey": 109, "l_suppkey": 10, "l_linenumber": 5, "l_quantity": 36.0d, "l_extendedprice": 36327.6d, "l_discount": 0.07d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-03-15", "l_commitdate": "1994-03-16", "l_receiptdate": "1994-03-18", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "accounts. furiousl" }
+{ "l_orderkey": 5667, "l_partkey": 145, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 37.0d, "l_extendedprice": 38670.18d, "l_discount": 0.09d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-24", "l_commitdate": "1995-09-17", "l_receiptdate": "1995-10-03", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": "s cajole blit" }
+{ "l_orderkey": 5668, "l_partkey": 4, "l_suppkey": 9, "l_linenumber": 1, "l_quantity": 15.0d, "l_extendedprice": 13560.0d, "l_discount": 0.03d, "l_tax": 0.04d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-04-06", "l_commitdate": "1995-05-12", "l_receiptdate": "1995-04-17", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": " the express, pending requests. bo" }
+{ "l_orderkey": 5669, "l_partkey": 191, "l_suppkey": 2, "l_linenumber": 1, "l_quantity": 7.0d, "l_extendedprice": 7638.33d, "l_discount": 0.06d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-06-19", "l_commitdate": "1996-07-07", "l_receiptdate": "1996-07-11", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "yly regular requests lose blithely. careful" }
+{ "l_orderkey": 5669, "l_partkey": 156, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 2.0d, "l_extendedprice": 2112.3d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-04", "l_commitdate": "1996-06-15", "l_receiptdate": "1996-08-20", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": " blithely excuses. slyly" }
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+{ "l_orderkey": 5957, "l_partkey": 88, "l_suppkey": 9, "l_linenumber": 5, "l_quantity": 40.0d, "l_extendedprice": 39523.2d, "l_discount": 0.04d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-01-07", "l_commitdate": "1994-02-05", "l_receiptdate": "1994-01-26", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "ironic asymptotes sleep blithely again" }
+{ "l_orderkey": 5957, "l_partkey": 6, "l_suppkey": 1, "l_linenumber": 6, "l_quantity": 41.0d, "l_extendedprice": 37146.0d, "l_discount": 0.1d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-03-25", "l_commitdate": "1994-02-20", "l_receiptdate": "1994-03-31", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "es across the regular requests maint" }
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+{ "l_orderkey": 5958, "l_partkey": 43, "l_suppkey": 6, "l_linenumber": 2, "l_quantity": 23.0d, "l_extendedprice": 21689.92d, "l_discount": 0.03d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-26", "l_commitdate": "1995-10-19", "l_receiptdate": "1995-09-27", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "regular requests. bold, bold deposits unwin" }
+{ "l_orderkey": 5958, "l_partkey": 153, "l_suppkey": 8, "l_linenumber": 3, "l_quantity": 42.0d, "l_extendedprice": 44232.3d, "l_discount": 0.1d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-12", "l_commitdate": "1995-10-19", "l_receiptdate": "1996-01-09", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "n accounts. final, ironic packages " }
+{ "l_orderkey": 5958, "l_partkey": 39, "l_suppkey": 10, "l_linenumber": 4, "l_quantity": 18.0d, "l_extendedprice": 16902.54d, "l_discount": 0.04d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-12-02", "l_commitdate": "1995-10-17", "l_receiptdate": "1995-12-22", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "regular requests haggle" }
+{ "l_orderkey": 5958, "l_partkey": 132, "l_suppkey": 8, "l_linenumber": 5, "l_quantity": 32.0d, "l_extendedprice": 33028.16d, "l_discount": 0.06d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-20", "l_commitdate": "1995-12-10", "l_receiptdate": "1995-10-14", "l_shipinstruct": "COLLECT COD", "l_shipmode": "REG AIR", "l_comment": "e carefully special theodolites. carefully " }
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+{ "l_orderkey": 5959, "l_partkey": 147, "l_suppkey": 8, "l_linenumber": 2, "l_quantity": 17.0d, "l_extendedprice": 17801.38d, "l_discount": 0.09d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-06-10", "l_commitdate": "1992-07-06", "l_receiptdate": "1992-06-23", "l_shipinstruct": "COLLECT COD", "l_shipmode": "MAIL", "l_comment": "ackages. blithely ex" }
+{ "l_orderkey": 5959, "l_partkey": 5, "l_suppkey": 6, "l_linenumber": 3, "l_quantity": 4.0d, "l_extendedprice": 3620.0d, "l_discount": 0.04d, "l_tax": 0.03d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-06-14", "l_commitdate": "1992-07-05", "l_receiptdate": "1992-07-01", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "gular requests ar" }
+{ "l_orderkey": 5959, "l_partkey": 196, "l_suppkey": 7, "l_linenumber": 4, "l_quantity": 13.0d, "l_extendedprice": 14250.47d, "l_discount": 0.03d, "l_tax": 0.0d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-07-29", "l_commitdate": "1992-07-13", "l_receiptdate": "1992-08-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "SHIP", "l_comment": "ar forges. deposits det" }
+{ "l_orderkey": 5959, "l_partkey": 40, "l_suppkey": 6, "l_linenumber": 5, "l_quantity": 37.0d, "l_extendedprice": 34781.48d, "l_discount": 0.04d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-06-05", "l_commitdate": "1992-07-18", "l_receiptdate": "1992-06-29", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "endencies. brai" }
+{ "l_orderkey": 5959, "l_partkey": 119, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 35.0d, "l_extendedprice": 35668.85d, "l_discount": 0.03d, "l_tax": 0.0d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-05-27", "l_commitdate": "1992-06-19", "l_receiptdate": "1992-06-23", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "ely silent deposits. " }
+{ "l_orderkey": 5959, "l_partkey": 43, "l_suppkey": 10, "l_linenumber": 7, "l_quantity": 47.0d, "l_extendedprice": 44322.88d, "l_discount": 0.02d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-08-28", "l_commitdate": "1992-07-24", "l_receiptdate": "1992-09-09", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "deposits. slyly special cou" }
+{ "l_orderkey": 5984, "l_partkey": 70, "l_suppkey": 5, "l_linenumber": 1, "l_quantity": 13.0d, "l_extendedprice": 12610.91d, "l_discount": 0.06d, "l_tax": 0.07d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-16", "l_commitdate": "1994-09-06", "l_receiptdate": "1994-11-11", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "lar platelets. f" }
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+{ "l_orderkey": 5984, "l_partkey": 1, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 8.0d, "l_extendedprice": 7208.0d, "l_discount": 0.1d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-09-17", "l_commitdate": "1994-08-28", "l_receiptdate": "1994-09-25", "l_shipinstruct": "COLLECT COD", "l_shipmode": "RAIL", "l_comment": "its. express," }
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+{ "l_orderkey": 5987, "l_partkey": 176, "l_suppkey": 5, "l_linenumber": 2, "l_quantity": 20.0d, "l_extendedprice": 21523.4d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-11-28", "l_commitdate": "1996-09-17", "l_receiptdate": "1996-12-05", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ing excuses nag quickly always bold" }
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+{ "l_orderkey": 5987, "l_partkey": 97, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 37.0d, "l_extendedprice": 36892.33d, "l_discount": 0.08d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-10-15", "l_commitdate": "1996-10-27", "l_receiptdate": "1996-11-09", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "le furiously carefully special " }
+{ "l_orderkey": 5988, "l_partkey": 172, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 41.0d, "l_extendedprice": 43958.97d, "l_discount": 0.08d, "l_tax": 0.03d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-01-20", "l_commitdate": "1994-02-06", "l_receiptdate": "1994-02-10", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "the pending, express reque" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/load-with-index/load-with-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/load-with-index/load-with-index.1.adm
new file mode 100644
index 0000000..dfc22e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/load-with-index/load-with-index.1.adm
@@ -0,0 +1,41 @@
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+{ "l_orderkey": 292, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 2, "l_quantity": 24.0d, "l_extendedprice": 24002.4d, "l_discount": 0.08d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-03-24", "l_commitdate": "1992-03-06", "l_receiptdate": "1992-04-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": " bold, pending theodolites u" }
+{ "l_orderkey": 641, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 1.0d, "l_extendedprice": 1000.1d, "l_discount": 0.09d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-12-03", "l_commitdate": "1993-10-28", "l_receiptdate": "1993-12-26", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": " nag across the regular foxes." }
+{ "l_orderkey": 675, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 15.0d, "l_extendedprice": 15001.5d, "l_discount": 0.09d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-10-18", "l_commitdate": "1997-09-28", "l_receiptdate": "1997-11-13", "l_shipinstruct": "COLLECT COD", "l_shipmode": "TRUCK", "l_comment": "posits after the furio" }
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+{ "l_orderkey": 1027, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 13.0d, "l_extendedprice": 13001.3d, "l_discount": 0.08d, "l_tax": 0.01d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-08-22", "l_commitdate": "1992-07-10", "l_receiptdate": "1992-09-12", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "ily ironic ideas use" }
+{ "l_orderkey": 1028, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 3, "l_quantity": 8.0d, "l_extendedprice": 8000.8d, "l_discount": 0.03d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-02-14", "l_commitdate": "1994-03-28", "l_receiptdate": "1994-02-22", "l_shipinstruct": "NONE", "l_shipmode": "AIR", "l_comment": "e carefully final packages. furiously fi" }
+{ "l_orderkey": 1152, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 25.0d, "l_extendedprice": 25002.5d, "l_discount": 0.04d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-10-20", "l_commitdate": "1994-09-18", "l_receiptdate": "1994-10-28", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "REG AIR", "l_comment": "efully ironic accounts. sly instructions wa" }
+{ "l_orderkey": 1223, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 28.0d, "l_extendedprice": 28002.8d, "l_discount": 0.1d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-08-07", "l_commitdate": "1996-07-24", "l_receiptdate": "1996-08-13", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": " quickly ironic requests. furious" }
+{ "l_orderkey": 1445, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 24.0d, "l_extendedprice": 24002.4d, "l_discount": 0.01d, "l_tax": 0.0d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-02-21", "l_commitdate": "1995-02-22", "l_receiptdate": "1995-03-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "SHIP", "l_comment": "al accounts use furiously a" }
+{ "l_orderkey": 1606, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 23.0d, "l_extendedprice": 23002.3d, "l_discount": 0.0d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-04-19", "l_commitdate": "1997-06-26", "l_receiptdate": "1997-04-30", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "ously final requests. slowly ironic ex" }
+{ "l_orderkey": 1828, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 33.0d, "l_extendedprice": 33003.3d, "l_discount": 0.05d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-06-27", "l_commitdate": "1994-06-10", "l_receiptdate": "1994-07-24", "l_shipinstruct": "COLLECT COD", "l_shipmode": "FOB", "l_comment": "s boost carefully. pending d" }
+{ "l_orderkey": 1857, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 41.0d, "l_extendedprice": 41004.1d, "l_discount": 0.07d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-04-16", "l_commitdate": "1993-02-16", "l_receiptdate": "1993-04-18", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": " the slyly" }
+{ "l_orderkey": 1890, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 2, "l_quantity": 43.0d, "l_extendedprice": 43004.3d, "l_discount": 0.07d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-12-30", "l_commitdate": "1997-01-31", "l_receiptdate": "1997-01-19", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "p ironic, express accounts. fu" }
+{ "l_orderkey": 2022, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 36.0d, "l_extendedprice": 36003.6d, "l_discount": 0.05d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1992-03-24", "l_commitdate": "1992-05-07", "l_receiptdate": "1992-04-13", "l_shipinstruct": "NONE", "l_shipmode": "MAIL", "l_comment": "ly after the foxes. regular, final inst" }
+{ "l_orderkey": 2470, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 2, "l_quantity": 50.0d, "l_extendedprice": 50005.0d, "l_discount": 0.03d, "l_tax": 0.03d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-06-02", "l_commitdate": "1997-06-01", "l_receiptdate": "1997-06-09", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": " packages " }
+{ "l_orderkey": 2567, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 6, "l_quantity": 32.0d, "l_extendedprice": 32003.2d, "l_discount": 0.01d, "l_tax": 0.07d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-05-24", "l_commitdate": "1998-04-30", "l_receiptdate": "1998-06-14", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": " the even, iro" }
+{ "l_orderkey": 2785, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 1, "l_quantity": 34.0d, "l_extendedprice": 34003.4d, "l_discount": 0.08d, "l_tax": 0.06d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-08-07", "l_commitdate": "1995-09-09", "l_receiptdate": "1995-09-05", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": "ly final packages haggl" }
+{ "l_orderkey": 2852, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 12.0d, "l_extendedprice": 12001.2d, "l_discount": 0.08d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-02-25", "l_commitdate": "1993-03-24", "l_receiptdate": "1993-03-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "le. request" }
+{ "l_orderkey": 3170, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 2, "l_quantity": 21.0d, "l_extendedprice": 21002.1d, "l_discount": 0.01d, "l_tax": 0.0d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1997-12-09", "l_commitdate": "1998-01-31", "l_receiptdate": "1997-12-21", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "o beans. carefully final requests dou" }
+{ "l_orderkey": 3233, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 2.0d, "l_extendedprice": 2000.2d, "l_discount": 0.04d, "l_tax": 0.06d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-01-03", "l_commitdate": "1995-01-02", "l_receiptdate": "1995-01-21", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "AIR", "l_comment": " across the bold packages" }
+{ "l_orderkey": 3461, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 49.0d, "l_extendedprice": 49004.9d, "l_discount": 0.06d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-03-09", "l_commitdate": "1993-04-16", "l_receiptdate": "1993-03-13", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "RAIL", "l_comment": "ual request" }
+{ "l_orderkey": 3649, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 24.0d, "l_extendedprice": 24002.4d, "l_discount": 0.05d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-07-07", "l_commitdate": "1994-08-20", "l_receiptdate": "1994-07-27", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "FOB", "l_comment": "c accounts. quickly final theodo" }
+{ "l_orderkey": 3683, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 3, "l_quantity": 23.0d, "l_extendedprice": 23002.3d, "l_discount": 0.0d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-07-02", "l_commitdate": "1993-05-16", "l_receiptdate": "1993-07-30", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "xpress accounts sleep slyly re" }
+{ "l_orderkey": 3777, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 1, "l_quantity": 11.0d, "l_extendedprice": 11001.1d, "l_discount": 0.02d, "l_tax": 0.03d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-04-09", "l_commitdate": "1994-06-05", "l_receiptdate": "1994-04-14", "l_shipinstruct": "NONE", "l_shipmode": "FOB", "l_comment": "ld ideas. even theodolites" }
+{ "l_orderkey": 3808, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 34.0d, "l_extendedprice": 34003.4d, "l_discount": 0.07d, "l_tax": 0.04d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-08-13", "l_commitdate": "1994-07-22", "l_receiptdate": "1994-08-31", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": " pearls will have to " }
+{ "l_orderkey": 4134, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 4, "l_quantity": 45.0d, "l_extendedprice": 45004.5d, "l_discount": 0.08d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1995-04-11", "l_commitdate": "1995-03-27", "l_receiptdate": "1995-04-17", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "MAIL", "l_comment": "ironic pin" }
+{ "l_orderkey": 4262, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 5, "l_quantity": 28.0d, "l_extendedprice": 28002.8d, "l_discount": 0.06d, "l_tax": 0.02d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1996-10-22", "l_commitdate": "1996-09-06", "l_receiptdate": "1996-11-13", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "FOB", "l_comment": "ironic, regular depend" }
+{ "l_orderkey": 4738, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 3, "l_quantity": 50.0d, "l_extendedprice": 50005.0d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1992-06-18", "l_commitdate": "1992-07-04", "l_receiptdate": "1992-07-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "TRUCK", "l_comment": "the blithely ironic braids sleep slyly" }
+{ "l_orderkey": 4739, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 3, "l_quantity": 30.0d, "l_extendedprice": 30003.0d, "l_discount": 0.09d, "l_tax": 0.0d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-05-29", "l_commitdate": "1993-04-12", "l_receiptdate": "1993-06-18", "l_shipinstruct": "NONE", "l_shipmode": "TRUCK", "l_comment": "ly even packages use across th" }
+{ "l_orderkey": 4742, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 5, "l_quantity": 45.0d, "l_extendedprice": 45004.5d, "l_discount": 0.05d, "l_tax": 0.0d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1995-05-12", "l_commitdate": "1995-05-14", "l_receiptdate": "1995-06-07", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "RAIL", "l_comment": "ke carefully. do" }
+{ "l_orderkey": 4839, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 4, "l_quantity": 19.0d, "l_extendedprice": 19001.9d, "l_discount": 0.07d, "l_tax": 0.08d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1994-05-20", "l_commitdate": "1994-07-14", "l_receiptdate": "1994-05-30", "l_shipinstruct": "NONE", "l_shipmode": "REG AIR", "l_comment": " deposits sublate furiously ir" }
+{ "l_orderkey": 4928, "l_partkey": 100, "l_suppkey": 1, "l_linenumber": 1, "l_quantity": 4.0d, "l_extendedprice": 4000.4d, "l_discount": 0.04d, "l_tax": 0.02d, "l_returnflag": "R", "l_linestatus": "F", "l_shipdate": "1993-10-25", "l_commitdate": "1993-12-24", "l_receiptdate": "1993-11-16", "l_shipinstruct": "TAKE BACK RETURN", "l_shipmode": "REG AIR", "l_comment": "bout the slyly final accounts. carefull" }
+{ "l_orderkey": 4961, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 10.0d, "l_extendedprice": 10001.0d, "l_discount": 0.02d, "l_tax": 0.04d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-04-15", "l_commitdate": "1998-07-03", "l_receiptdate": "1998-04-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "MAIL", "l_comment": "quests. regular, ironic ideas at the ironi" }
+{ "l_orderkey": 5509, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 4, "l_quantity": 45.0d, "l_extendedprice": 45004.5d, "l_discount": 0.0d, "l_tax": 0.07d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-07-24", "l_commitdate": "1994-05-28", "l_receiptdate": "1994-08-20", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "counts sleep. f" }
+{ "l_orderkey": 5633, "l_partkey": 100, "l_suppkey": 2, "l_linenumber": 5, "l_quantity": 48.0d, "l_extendedprice": 48004.8d, "l_discount": 0.01d, "l_tax": 0.05d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1998-06-24", "l_commitdate": "1998-07-22", "l_receiptdate": "1998-07-18", "l_shipinstruct": "DELIVER IN PERSON", "l_shipmode": "TRUCK", "l_comment": "even courts haggle slyly at the requ" }
+{ "l_orderkey": 5799, "l_partkey": 100, "l_suppkey": 3, "l_linenumber": 2, "l_quantity": 30.0d, "l_extendedprice": 30003.0d, "l_discount": 0.03d, "l_tax": 0.08d, "l_returnflag": "N", "l_linestatus": "O", "l_shipdate": "1995-09-12", "l_commitdate": "1995-09-13", "l_receiptdate": "1995-09-19", "l_shipinstruct": "NONE", "l_shipmode": "RAIL", "l_comment": " furiously s" }
+{ "l_orderkey": 5920, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 42.0d, "l_extendedprice": 42004.2d, "l_discount": 0.09d, "l_tax": 0.08d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1994-12-18", "l_commitdate": "1995-01-07", "l_receiptdate": "1995-01-14", "l_shipinstruct": "COLLECT COD", "l_shipmode": "AIR", "l_comment": "lar, ironic dependencies sno" }
+{ "l_orderkey": 5954, "l_partkey": 100, "l_suppkey": 4, "l_linenumber": 5, "l_quantity": 35.0d, "l_extendedprice": 35003.5d, "l_discount": 0.04d, "l_tax": 0.06d, "l_returnflag": "A", "l_linestatus": "F", "l_shipdate": "1993-03-17", "l_commitdate": "1993-02-06", "l_receiptdate": "1993-04-10", "l_shipinstruct": "NONE", "l_shipmode": "SHIP", "l_comment": "tions maintain slyly. furious" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.adm
new file mode 100644
index 0000000..60a389c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o-recursive/opentype-c2o-recursive.1.adm
@@ -0,0 +1,4 @@
+{ "name": "Person One", "id": "001", "address": { "street": "3019 DBH", "city": "Irvine", "zip": 92697 }, "department": {{ { "name": "CS", "id": 299, "review": 5 }, { "name": "EE", "id": 399 } }} }
+{ "name": "Person Two", "id": "002", "address": null, "department": null }
+{ "name": "Person Three", "id": "003", "address": { "street": "2019 DBH", "city": "Irvine" }, "department": null }
+{ "name": "Person Four", "id": "004", "address": { "street": "1019 DBH", "city": "irvine", "property": { "zip": 92697, "review": "positive" } }, "department": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o/opentype-c2o.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o/opentype-c2o.1.adm
new file mode 100644
index 0000000..6086a08
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-c2o/opentype-c2o.1.adm
@@ -0,0 +1,5 @@
+{ "id": "001", "name": "Person Three", "hobby": {{ "music", "coding" }} }
+{ "id": "002", "name": "Person One", "hobby": {{ "sports" }} }
+{ "id": "003", "name": "Person Two", "hobby": {{ "movie", "sports" }} }
+{ "id": "004", "name": "Person Four", "hobby": {{ "swimming" }} }
+{ "id": "005", "name": "Person Five", "hobby": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-closed-optional/opentype-closed-optional.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-closed-optional/opentype-closed-optional.1.adm
new file mode 100644
index 0000000..78e8d93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-closed-optional/opentype-closed-optional.1.adm
@@ -0,0 +1,2 @@
+{ "name": "Person One", "id": "001" }
+{ "name": null, "id": "002" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert/opentype-insert.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert/opentype-insert.1.adm
new file mode 100644
index 0000000..6d6dc2a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert/opentype-insert.1.adm
@@ -0,0 +1 @@
+{ "id": "001", "name": "Person Three", "hobbies": {{ "scuba", "music" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert2/opentype-insert2.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert2/opentype-insert2.1.adm
new file mode 100644
index 0000000..45d112e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-insert2/opentype-insert2.1.adm
@@ -0,0 +1,10 @@
+{ "id": 1, "name": "John Doe" }
+{ "id": 2, "name": "John Doe" }
+{ "id": 3, "name": "John Doe" }
+{ "id": 4, "name": "John Doe" }
+{ "id": 5, "name": "John Doe" }
+{ "id": 6, "name": "John Doe" }
+{ "id": 7, "name": "John Doe" }
+{ "id": 8, "name": "John Doe" }
+{ "id": 9, "name": "John Doe" }
+{ "id": 10, "name": "John Doe" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-noexpand/opentype-noexpand.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-noexpand/opentype-noexpand.1.adm
new file mode 100644
index 0000000..78e8d93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-noexpand/opentype-noexpand.1.adm
@@ -0,0 +1,2 @@
+{ "name": "Person One", "id": "001" }
+{ "name": null, "id": "002" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.adm
new file mode 100644
index 0000000..c67c3cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c-recursive/opentype-o2c-recursive.1.adm
@@ -0,0 +1,4 @@
+{ "name": "Person One", "id": "001", "address": { "street": "3019 DBH", "city": "Irvine", "zip": 92697 }, "department": {{ { "name": "CS", "id": 299 }, { "name": "EE", "id": 399 } }} }
+{ "name": "Person Two", "id": "002", "address": null, "department": null }
+{ "name": "Person Three", "id": "003", "address": { "street": "2019 DBH", "city": "Irvine" }, "department": null }
+{ "name": "Person Four", "id": "004", "address": { "street": "1019 DBH", "city": "irvine", "property": { "zip": 92697, "review": "positive" } }, "department": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c/opentype-o2c.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c/opentype-o2c.1.adm
new file mode 100644
index 0000000..92809fd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2c/opentype-o2c.1.adm
@@ -0,0 +1,5 @@
+{ "hobby": {{ "music" }}, "id": "001", "name": "Person Three" }
+{ "hobby": {{ "football" }}, "id": "002", "name": "Person Three" }
+{ "hobby": {{ "movie", "coding", "debugging" }}, "id": "003", "name": "Person Three" }
+{ "hobby": {{ "swimming", "music" }}, "id": "004", "name": "Person Three" }
+{ "hobby": null, "id": "005", "name": "Person Five" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2o/opentype-o2o.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2o/opentype-o2o.1.adm
new file mode 100644
index 0000000..3b25366
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/opentype-o2o/opentype-o2o.1.adm
@@ -0,0 +1,4 @@
+{ "id": "001", "name": "Person One", "hobby": "music" }
+{ "id": "002", "name": "Person Two", "hobby": "football", "city": "irvine" }
+{ "id": "003", "name": "Person Three", "hobby": "movie" }
+{ "id": "004", "name": "Person Four", "hobby": "swimming", "phone": "102-304-506" }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/query-issue205/query-issue205.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/query-issue205/query-issue205.1.adm
new file mode 100644
index 0000000..ea80112
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/query-issue205/query-issue205.1.adm
@@ -0,0 +1 @@
+{ "id": "5678", "stat": { "age": 40, "salary": 100000 }, "deptCode": 16 }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/insert-tuple-with-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/query-issue288/query-issue288.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/insert-tuple-with-index.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/query-issue288/query-issue288.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..a12b9b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-btree-secondary-index-nullable/scan-delete-btree-secondary-index-nullable.1.adm
@@ -0,0 +1,14 @@
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": {{ "Wine" }}, "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 52, "name": "Janna Tish", "age": 12, "address": { "number": 2598, "street": "Washington St.", "city": "San Jose" }, "interests": {{  }}, "children": [ { "name": "Mackenzie Tish", "age": null }, { "name": "Ettie Tish", "age": null }, { "name": "Hortencia Tish", "age": null }, { "name": "Paul Tish", "age": null } ] }
+{ "cid": 55, "name": "Terrence Bryant", "age": 12, "address": { "number": 3188, "street": "Park St.", "city": "Seattle" }, "interests": {{ "Wine", "Cooking" }}, "children": [ { "name": "Dayna Bryant", "age": null } ] }
+{ "cid": 61, "name": "Linsey Mose", "age": 17, "address": { "number": 9198, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Puzzles" }}, "children": [ { "name": "Tilda Mose", "age": null }, { "name": "Lillie Mose", "age": null }, { "name": "Robyn Mose", "age": null } ] }
+{ "cid": 92, "name": "Kenny Laychock", "age": 15, "address": { "number": 4790, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Basketball" }}, "children": [  ] }
+{ "cid": 111, "name": "Eddy Ortea", "age": 16, "address": { "number": 6874, "street": "Main St.", "city": "Los Angeles" }, "interests": {{  }}, "children": [ { "name": "Shera Ortea", "age": null } ] }
+{ "cid": 112, "name": "Dorie Lave", "age": 10, "address": { "number": 2286, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Coffee" }}, "children": [ { "name": "Grady Lave", "age": null }, { "name": "Daysi Lave", "age": null } ] }
+{ "cid": 144, "name": "Celesta Sosebee", "age": 19, "address": { "number": 2683, "street": "7th St.", "city": "Portland" }, "interests": {{ "Databases", "Databases" }}, "children": [ { "name": "Jesse Sosebee", "age": null }, { "name": "Oralee Sosebee", "age": null }, { "name": "Sunday Sosebee", "age": null } ] }
+{ "cid": 146, "name": "Glennis Vanruiten", "age": 14, "address": { "number": 8272, "street": "Park St.", "city": "Los Angeles" }, "interests": {{ "Squash", "Databases" }}, "children": [ { "name": "Joanie Vanruiten", "age": null }, { "name": "Long Vanruiten", "age": null }, { "name": "Abdul Vanruiten", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
+{ "cid": 186, "name": "Krystle Spangler", "age": 15, "address": { "number": 4697, "street": "Cedar St.", "city": "Seattle" }, "interests": {{ "Cigars", "Squash", "Coffee", "Video Games" }}, "children": [  ] }
+{ "cid": 192, "name": "Shakira Delmonte", "age": 10, "address": { "number": 8838, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Books", "Cigars", "Bass", "Base Jumping" }}, "children": [ { "name": "Sergio Delmonte", "age": null }, { "name": "Aida Delmonte", "age": null }, { "name": "Juliane Delmonte", "age": null } ] }
+{ "cid": 195, "name": "Annetta Demille", "age": 17, "address": { "number": 5722, "street": "Park St.", "city": "Portland" }, "interests": {{ "Bass" }}, "children": [ { "name": "Natacha Demille", "age": null }, { "name": "Giuseppe Demille", "age": null }, { "name": "Kami Demille", "age": null }, { "name": "Jewell Demille", "age": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..7810e91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm
@@ -0,0 +1 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.adm
new file mode 100644
index 0000000..7810e91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.adm
@@ -0,0 +1 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..7810e91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index-nullable/scan-delete-inverted-index-ngram-secondary-index-nullable.1.adm
@@ -0,0 +1 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.adm
new file mode 100644
index 0000000..7810e91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-ngram-secondary-index/scan-delete-inverted-index-ngram-secondary-index.1.adm
@@ -0,0 +1 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-word-secondary-index-nullable/scan-delete-inverted-index-word-secondary-index-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-inverted-index-word-secondary-index/scan-delete-inverted-index-word-secondary-index.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index.adm
copy to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index-nullable/scan-delete-rtree-secondary-index-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/scan-delete-rtree-secondary-index/scan-delete-rtree-secondary-index.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..a12b9b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-btree-secondary-index-nullable/scan-insert-btree-secondary-index-nullable.1.adm
@@ -0,0 +1,14 @@
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": {{ "Wine" }}, "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 52, "name": "Janna Tish", "age": 12, "address": { "number": 2598, "street": "Washington St.", "city": "San Jose" }, "interests": {{  }}, "children": [ { "name": "Mackenzie Tish", "age": null }, { "name": "Ettie Tish", "age": null }, { "name": "Hortencia Tish", "age": null }, { "name": "Paul Tish", "age": null } ] }
+{ "cid": 55, "name": "Terrence Bryant", "age": 12, "address": { "number": 3188, "street": "Park St.", "city": "Seattle" }, "interests": {{ "Wine", "Cooking" }}, "children": [ { "name": "Dayna Bryant", "age": null } ] }
+{ "cid": 61, "name": "Linsey Mose", "age": 17, "address": { "number": 9198, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Puzzles" }}, "children": [ { "name": "Tilda Mose", "age": null }, { "name": "Lillie Mose", "age": null }, { "name": "Robyn Mose", "age": null } ] }
+{ "cid": 92, "name": "Kenny Laychock", "age": 15, "address": { "number": 4790, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Basketball" }}, "children": [  ] }
+{ "cid": 111, "name": "Eddy Ortea", "age": 16, "address": { "number": 6874, "street": "Main St.", "city": "Los Angeles" }, "interests": {{  }}, "children": [ { "name": "Shera Ortea", "age": null } ] }
+{ "cid": 112, "name": "Dorie Lave", "age": 10, "address": { "number": 2286, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Coffee" }}, "children": [ { "name": "Grady Lave", "age": null }, { "name": "Daysi Lave", "age": null } ] }
+{ "cid": 144, "name": "Celesta Sosebee", "age": 19, "address": { "number": 2683, "street": "7th St.", "city": "Portland" }, "interests": {{ "Databases", "Databases" }}, "children": [ { "name": "Jesse Sosebee", "age": null }, { "name": "Oralee Sosebee", "age": null }, { "name": "Sunday Sosebee", "age": null } ] }
+{ "cid": 146, "name": "Glennis Vanruiten", "age": 14, "address": { "number": 8272, "street": "Park St.", "city": "Los Angeles" }, "interests": {{ "Squash", "Databases" }}, "children": [ { "name": "Joanie Vanruiten", "age": null }, { "name": "Long Vanruiten", "age": null }, { "name": "Abdul Vanruiten", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
+{ "cid": 186, "name": "Krystle Spangler", "age": 15, "address": { "number": 4697, "street": "Cedar St.", "city": "Seattle" }, "interests": {{ "Cigars", "Squash", "Coffee", "Video Games" }}, "children": [  ] }
+{ "cid": 192, "name": "Shakira Delmonte", "age": 10, "address": { "number": 8838, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Books", "Cigars", "Bass", "Base Jumping" }}, "children": [ { "name": "Sergio Delmonte", "age": null }, { "name": "Aida Delmonte", "age": null }, { "name": "Juliane Delmonte", "age": null } ] }
+{ "cid": 195, "name": "Annetta Demille", "age": 17, "address": { "number": 5722, "street": "Park St.", "city": "Portland" }, "interests": {{ "Bass" }}, "children": [ { "name": "Natacha Demille", "age": null }, { "name": "Giuseppe Demille", "age": null }, { "name": "Kami Demille", "age": null }, { "name": "Jewell Demille", "age": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index-nullable/scan-insert-inverted-index-ngram-secondary-index-nullable.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-ngram-secondary-index/scan-insert-inverted-index-ngram-secondary-index.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index-nullable/scan-insert-inverted-index-word-secondary-index-nullable.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-inverted-index-word-secondary-index/scan-insert-inverted-index-word-secondary-index.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index.adm
rename to asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index-nullable/scan-insert-rtree-secondary-index-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.adm
new file mode 100644
index 0000000..0dd81cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/dml/scan-insert-rtree-secondary-index/scan-insert-rtree-secondary-index.1.adm
@@ -0,0 +1,3 @@
+{ "id": 10 }
+{ "id": 12 }
+{ "id": 20 }
diff --git a/asterix-app/src/test/resources/runtimets/results/employee/q_01.adm b/asterix-app/src/test/resources/runtimets/results/employee/q_01/q_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/employee/q_01.adm
rename to asterix-app/src/test/resources/runtimets/results/employee/q_01/q_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/employee/q_02.adm b/asterix-app/src/test/resources/runtimets/results/employee/q_02/q_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/employee/q_02.adm
rename to asterix-app/src/test/resources/runtimets/results/employee/q_02/q_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/failure/delete-rtree.adm b/asterix-app/src/test/resources/runtimets/results/failure/delete-rtree/delete-rtree.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/failure/delete-rtree.adm
rename to asterix-app/src/test/resources/runtimets/results/failure/delete-rtree/delete-rtree.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/failure/delete.adm b/asterix-app/src/test/resources/runtimets/results/failure/delete/delete.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/failure/delete.adm
rename to asterix-app/src/test/resources/runtimets/results/failure/delete/delete.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/failure/insert-rtree.adm b/asterix-app/src/test/resources/runtimets/results/failure/insert-rtree/insert-rtree.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/failure/insert-rtree.adm
rename to asterix-app/src/test/resources/runtimets/results/failure/insert-rtree/insert-rtree.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/failure/insert.adm b/asterix-app/src/test/resources/runtimets/results/failure/insert/insert.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/failure/insert.adm
rename to asterix-app/src/test/resources/runtimets/results/failure/insert/insert.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/failure/q1_pricing_summary_report_failure.adm b/asterix-app/src/test/resources/runtimets/results/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/failure/q1_pricing_summary_report_failure.adm
rename to asterix-app/src/test/resources/runtimets/results/failure/q1_pricing_summary_report_failure/q1_pricing_summary_report_failure.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm
new file mode 100644
index 0000000..4e3714c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_01/feeds_01.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": null, "Status": "INACTIVE" }, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:07:24 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_02/feeds_02.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_02/feeds_02.1.adm
new file mode 100644
index 0000000..9720960
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_02/feeds_02.1.adm
@@ -0,0 +1,12 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
+{ "id": "nc1:119", "username": "ToucanMall", "location": "", "text": "RT @Newitrsdotcom: I hope #Obama will win re-election... Other four years without meaningless #wars", "timestamp": "Thu Dec 06 16:53:09 PST 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm
new file mode 100644
index 0000000..8011e4b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_03/feeds_03.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "feeds", "DatasetName": "TweetFeed", "DataTypeName": "TweetType", "DatasetType": "FEED", "InternalDetails": null, "ExternalDetails": null, "FeedDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES", "DatasourceAdapter": "edu.uci.ics.asterix.tools.external.data.RateControlledFileSystemBasedAdapterFactory", "Properties": [ { "Name": "output-type-name", "Value": "TweetType" }, { "Name": "fs", "Value": "localfs" }, { "Name": "path", "Value": "nc1://data/twitter/obamatweets.adm" }, { "Name": "format", "Value": "adm" }, { "Name": "tuple-interval", "Value": "10" } ], "Function": "feeds.feed_processor@1", "Status": "INACTIVE" }, "Hints": {{  }}, "Timestamp": "Tue Jan 29 19:08:49 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/feeds_04/feeds_04.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_04/feeds_04.1.adm
new file mode 100644
index 0000000..2567483
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/feeds_04/feeds_04.1.adm
@@ -0,0 +1,11 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/results/feeds/issue_230_feeds/issue_230_feeds.1.adm b/asterix-app/src/test/resources/runtimets/results/feeds/issue_230_feeds/issue_230_feeds.1.adm
new file mode 100644
index 0000000..9720960
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/feeds/issue_230_feeds/issue_230_feeds.1.adm
@@ -0,0 +1,12 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
+{ "id": "nc1:119", "username": "ToucanMall", "location": "", "text": "RT @Newitrsdotcom: I hope #Obama will win re-election... Other four years without meaningless #wars", "timestamp": "Thu Dec 06 16:53:09 PST 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-01/ret-01.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-01/ret-01.1.adm
new file mode 100644
index 0000000..930236d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-01/ret-01.1.adm
@@ -0,0 +1,8 @@
+3
+6
+6
+5
+5
+5
+7
+6
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-02/ret-02.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-02/ret-02.1.adm
new file mode 100644
index 0000000..f38fb92
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-02/ret-02.1.adm
@@ -0,0 +1 @@
+"this is a test string"
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-03/ret-03.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-03/ret-03.1.adm
new file mode 100644
index 0000000..f42d61b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-03/ret-03.1.adm
@@ -0,0 +1 @@
+"YES"
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-04/ret-04.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-04/ret-04.1.adm
new file mode 100644
index 0000000..e236a3d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-04/ret-04.1.adm
@@ -0,0 +1 @@
+"GREATER"
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-05/ret-05.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-05/ret-05.1.adm
new file mode 100644
index 0000000..63aa2a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-05/ret-05.1.adm
@@ -0,0 +1 @@
+[ [ 1, 2, 3 ], [ 4, 5, 6, 7 ], [ 8, 9 ], [ 0, 4, 5 ], [ 6, 7, 1 ], [ 2, 3, 4 ], [ 5, 6, 7 ], [ 8, 9, 0 ] ]
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-06/ret-06.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-06/ret-06.1.adm
new file mode 100644
index 0000000..438d43b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-06/ret-06.1.adm
@@ -0,0 +1 @@
+{{ "Welcome", "UCI", "Anteater", "DBH", "ICS" }}
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-07/ret-07.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-07/ret-07.1.adm
new file mode 100644
index 0000000..6578fd5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-07/ret-07.1.adm
@@ -0,0 +1 @@
+{  }
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-08/ret-08.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-08/ret-08.1.adm
new file mode 100644
index 0000000..bb40282
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-08/ret-08.1.adm
@@ -0,0 +1,8 @@
+{ "a": 1, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 2, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 3, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 4, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 5, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 6, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 7, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
+{ "a": 8, "inner-for": [ 11, 22, 33, 44, 55, 66, 77, 88 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/01.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-09/ret-09.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/01.adm
copy to asterix-app/src/test/resources/runtimets/results/flwor/ret-09/ret-09.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-10/ret-10.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-10/ret-10.1.adm
new file mode 100644
index 0000000..e53eaa1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-10/ret-10.1.adm
@@ -0,0 +1,10 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-11/ret-11.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-11/ret-11.1.adm
new file mode 100644
index 0000000..4fd875a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-11/ret-11.1.adm
@@ -0,0 +1,9 @@
+2
+3
+4
+5
+6
+7
+8
+9
+10
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-12/ret-12.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-12/ret-12.1.adm
new file mode 100644
index 0000000..1000f90
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-12/ret-12.1.adm
@@ -0,0 +1,9 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-13/ret-13.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-13/ret-13.1.adm
new file mode 100644
index 0000000..eb62fa2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-13/ret-13.1.adm
@@ -0,0 +1,9 @@
+9
+18
+27
+36
+45
+54
+63
+72
+81
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-14/ret-14.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-14/ret-14.1.adm
new file mode 100644
index 0000000..734a18a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-14/ret-14.1.adm
@@ -0,0 +1 @@
+{ "name": "John Doe", "age": 26, "sex": "M", "salary": 50000, "dept": "HR" }
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-15/ret-15.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-15/ret-15.1.adm
new file mode 100644
index 0000000..c508d53
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-15/ret-15.1.adm
@@ -0,0 +1 @@
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-16/ret-16.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-16/ret-16.1.adm
new file mode 100644
index 0000000..27ba77d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-16/ret-16.1.adm
@@ -0,0 +1 @@
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-17/ret-17.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-17/ret-17.1.adm
new file mode 100644
index 0000000..27ba77d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-17/ret-17.1.adm
@@ -0,0 +1 @@
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/flwor/ret-18/ret-18.1.adm b/asterix-app/src/test/resources/runtimets/results/flwor/ret-18/ret-18.1.adm
new file mode 100644
index 0000000..7f8f011
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/flwor/ret-18/ret-18.1.adm
@@ -0,0 +1 @@
+7
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_1.adm
deleted file mode 100644
index 8b231c5..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_1.adm
+++ /dev/null
@@ -1,302 +0,0 @@
--2100346009
--2099271744
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--2064380931
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diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_1/dblp-1_1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_1/dblp-1_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1/dblp-1_2.1.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1/dblp-1_2.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.adm
deleted file mode 100644
index 8b231c5..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.adm
+++ /dev/null
@@ -1,302 +0,0 @@
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--1059628593
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diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2/dblp-1_2.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-1_2/dblp-1_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1/dblp-2.1_5.3.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.2.adm
deleted file mode 100644
index e2eb27d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.2.adm
+++ /dev/null
@@ -1,442 +0,0 @@
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-{ "id": 1, "prefixToken": 238, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 1, "prefixToken": 254, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
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-{ "id": 2, "prefixToken": 20, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
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-{ "id": 99, "prefixToken": 74, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "prefixToken": 13, "tokens": [ 13, 38, 119, 293, 299 ] }
-{ "id": 100, "prefixToken": 38, "tokens": [ 13, 38, 119, 293, 299 ] }
-{ "id": 100, "prefixToken": 119, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.2/dblp-2.2.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.1_5.3.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2.2/dblp-2.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1/dblp-2_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1/dblp-2_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_2.adm
deleted file mode 100644
index 7b38dee..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_2.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
-{ "id": 7, "tokens": [ 260, 290 ] }
-{ "id": 8, "tokens": [ 58, 121, 122, 133, 143, 209, 258, 291, 292, 296, 297, 298, 300 ] }
-{ "id": 9, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
-{ "id": 11, "tokens": [ 43, 279, 300 ] }
-{ "id": 12, "tokens": [ 64, 110, 196, 241, 249, 283, 288, 297 ] }
-{ "id": 13, "tokens": [ 21, 46, 88, 294, 296, 297, 300, 301 ] }
-{ "id": 14, "tokens": [ 18, 51, 241, 249, 280, 283, 288, 290, 295 ] }
-{ "id": 15, "tokens": [ 11, 101, 136, 261, 275, 294, 298 ] }
-{ "id": 16, "tokens": [ 26, 114, 147, 251, 292, 294, 295, 296, 297, 300 ] }
-{ "id": 17, "tokens": [ 86, 245, 275, 290, 294, 296, 298, 300 ] }
-{ "id": 18, "tokens": [ 4, 49, 137, 145, 177, 270, 288, 299 ] }
-{ "id": 19, "tokens": [ 175, 258, 288, 291, 297, 300 ] }
-{ "id": 20, "tokens": [ 9, 290, 296, 298, 300 ] }
-{ "id": 21, "tokens": [ 259, 261, 263, 294, 298 ] }
-{ "id": 22, "tokens": [ 116, 279, 293, 294, 297, 298 ] }
-{ "id": 23, "tokens": [ 63, 265, 294, 297 ] }
-{ "id": 24, "tokens": [ 259, 263, 294, 296, 297, 298, 300 ] }
-{ "id": 25, "tokens": [ 31, 47, 190, 204, 293, 301 ] }
-{ "id": 26, "tokens": [ 213, 240, 270 ] }
-{ "id": 27, "tokens": [ 85, 213, 259, 263, 270, 301 ] }
-{ "id": 28, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
-{ "id": 30, "tokens": [ 6, 267, 299, 300 ] }
-{ "id": 31, "tokens": [ 94, 238 ] }
-{ "id": 32, "tokens": [ 73, 165, 189, 297, 299 ] }
-{ "id": 33, "tokens": [ 68, 244, 286, 293, 299 ] }
-{ "id": 34, "tokens": [ 15, 34, 99, 267, 294, 297, 299, 300, 301 ] }
-{ "id": 35, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
-{ "id": 36, "tokens": [ 178, 201, 220, 291, 296, 298, 300 ] }
-{ "id": 37, "tokens": [ 108, 270, 279, 286, 299 ] }
-{ "id": 38, "tokens": [ 30, 174, 279, 298 ] }
-{ "id": 39, "tokens": [ 103, 130, 193, 260, 286, 292, 295, 299, 300 ] }
-{ "id": 40, "tokens": [ 44, 128, 256, 282, 297, 298, 301 ] }
-{ "id": 41, "tokens": [ 48, 57, 236, 256, 301 ] }
-{ "id": 42, "tokens": [ 90, 209, 244, 293, 299 ] }
-{ "id": 43, "tokens": [ 69, 98, 286, 293, 296, 297, 299, 300 ] }
-{ "id": 44, "tokens": [ 1, 202, 290, 295, 296, 300 ] }
-{ "id": 45, "tokens": [ 67, 100, 109, 296, 300 ] }
-{ "id": 46, "tokens": [ 23, 75, 117, 118, 160, 294, 295, 297 ] }
-{ "id": 47, "tokens": [ 45, 54, 193, 251 ] }
-{ "id": 48, "tokens": [ 95, 113, 159, 271, 273, 296, 299, 300 ] }
-{ "id": 49, "tokens": [ 120, 151, 162, 182, 271, 295, 297, 300 ] }
-{ "id": 50, "tokens": [ 5, 187, 292, 293, 296, 300 ] }
-{ "id": 51, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
-{ "id": 54, "tokens": [ 19, 62, 87, 135, 149, 245, 292, 293, 299 ] }
-{ "id": 55, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
-{ "id": 56, "tokens": [ 164, 252, 273, 296, 300 ] }
-{ "id": 57, "tokens": [ 7, 42, 296, 298, 300 ] }
-{ "id": 58, "tokens": [ 37, 102, 179, 256, 267, 292, 293, 295 ] }
-{ "id": 59, "tokens": [ 17, 286, 291, 296, 297, 300 ] }
-{ "id": 60, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
-{ "id": 63, "tokens": [ 260, 262, 281, 283, 288, 294, 297 ] }
-{ "id": 64, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
-{ "id": 65, "tokens": [ 36, 55, 221, 281, 283, 288, 294, 295, 297 ] }
-{ "id": 66, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "tokens": [ 127, 161, 184 ] }
-{ "id": 69, "tokens": [ 92 ] }
-{ "id": 70, "tokens": [ 126, 144, 299 ] }
-{ "id": 71, "tokens": [ 14, 112, 134, 169, 170, 181, 254, 282, 292, 293, 301 ] }
-{ "id": 72, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "tokens": [ 272 ] }
-{ "id": 81, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_2/dblp-2_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_2/dblp-2_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_3.adm
deleted file mode 100644
index 7b38dee..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_3.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
-{ "id": 7, "tokens": [ 260, 290 ] }
-{ "id": 8, "tokens": [ 58, 121, 122, 133, 143, 209, 258, 291, 292, 296, 297, 298, 300 ] }
-{ "id": 9, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
-{ "id": 11, "tokens": [ 43, 279, 300 ] }
-{ "id": 12, "tokens": [ 64, 110, 196, 241, 249, 283, 288, 297 ] }
-{ "id": 13, "tokens": [ 21, 46, 88, 294, 296, 297, 300, 301 ] }
-{ "id": 14, "tokens": [ 18, 51, 241, 249, 280, 283, 288, 290, 295 ] }
-{ "id": 15, "tokens": [ 11, 101, 136, 261, 275, 294, 298 ] }
-{ "id": 16, "tokens": [ 26, 114, 147, 251, 292, 294, 295, 296, 297, 300 ] }
-{ "id": 17, "tokens": [ 86, 245, 275, 290, 294, 296, 298, 300 ] }
-{ "id": 18, "tokens": [ 4, 49, 137, 145, 177, 270, 288, 299 ] }
-{ "id": 19, "tokens": [ 175, 258, 288, 291, 297, 300 ] }
-{ "id": 20, "tokens": [ 9, 290, 296, 298, 300 ] }
-{ "id": 21, "tokens": [ 259, 261, 263, 294, 298 ] }
-{ "id": 22, "tokens": [ 116, 279, 293, 294, 297, 298 ] }
-{ "id": 23, "tokens": [ 63, 265, 294, 297 ] }
-{ "id": 24, "tokens": [ 259, 263, 294, 296, 297, 298, 300 ] }
-{ "id": 25, "tokens": [ 31, 47, 190, 204, 293, 301 ] }
-{ "id": 26, "tokens": [ 213, 240, 270 ] }
-{ "id": 27, "tokens": [ 85, 213, 259, 263, 270, 301 ] }
-{ "id": 28, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
-{ "id": 30, "tokens": [ 6, 267, 299, 300 ] }
-{ "id": 31, "tokens": [ 94, 238 ] }
-{ "id": 32, "tokens": [ 73, 165, 189, 297, 299 ] }
-{ "id": 33, "tokens": [ 68, 244, 286, 293, 299 ] }
-{ "id": 34, "tokens": [ 15, 34, 99, 267, 294, 297, 299, 300, 301 ] }
-{ "id": 35, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
-{ "id": 36, "tokens": [ 178, 201, 220, 291, 296, 298, 300 ] }
-{ "id": 37, "tokens": [ 108, 270, 279, 286, 299 ] }
-{ "id": 38, "tokens": [ 30, 174, 279, 298 ] }
-{ "id": 39, "tokens": [ 103, 130, 193, 260, 286, 292, 295, 299, 300 ] }
-{ "id": 40, "tokens": [ 44, 128, 256, 282, 297, 298, 301 ] }
-{ "id": 41, "tokens": [ 48, 57, 236, 256, 301 ] }
-{ "id": 42, "tokens": [ 90, 209, 244, 293, 299 ] }
-{ "id": 43, "tokens": [ 69, 98, 286, 293, 296, 297, 299, 300 ] }
-{ "id": 44, "tokens": [ 1, 202, 290, 295, 296, 300 ] }
-{ "id": 45, "tokens": [ 67, 100, 109, 296, 300 ] }
-{ "id": 46, "tokens": [ 23, 75, 117, 118, 160, 294, 295, 297 ] }
-{ "id": 47, "tokens": [ 45, 54, 193, 251 ] }
-{ "id": 48, "tokens": [ 95, 113, 159, 271, 273, 296, 299, 300 ] }
-{ "id": 49, "tokens": [ 120, 151, 162, 182, 271, 295, 297, 300 ] }
-{ "id": 50, "tokens": [ 5, 187, 292, 293, 296, 300 ] }
-{ "id": 51, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
-{ "id": 54, "tokens": [ 19, 62, 87, 135, 149, 245, 292, 293, 299 ] }
-{ "id": 55, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
-{ "id": 56, "tokens": [ 164, 252, 273, 296, 300 ] }
-{ "id": 57, "tokens": [ 7, 42, 296, 298, 300 ] }
-{ "id": 58, "tokens": [ 37, 102, 179, 256, 267, 292, 293, 295 ] }
-{ "id": 59, "tokens": [ 17, 286, 291, 296, 297, 300 ] }
-{ "id": 60, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
-{ "id": 63, "tokens": [ 260, 262, 281, 283, 288, 294, 297 ] }
-{ "id": 64, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
-{ "id": 65, "tokens": [ 36, 55, 221, 281, 283, 288, 294, 295, 297 ] }
-{ "id": 66, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "tokens": [ 127, 161, 184 ] }
-{ "id": 69, "tokens": [ 92 ] }
-{ "id": 70, "tokens": [ 126, 144, 299 ] }
-{ "id": 71, "tokens": [ 14, 112, 134, 169, 170, 181, 254, 282, 292, 293, 301 ] }
-{ "id": 72, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "tokens": [ 272 ] }
-{ "id": 81, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_3/dblp-2_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_3/dblp-2_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_4.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_4.adm
deleted file mode 100644
index 7b38dee..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_4.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
-{ "id": 7, "tokens": [ 260, 290 ] }
-{ "id": 8, "tokens": [ 58, 121, 122, 133, 143, 209, 258, 291, 292, 296, 297, 298, 300 ] }
-{ "id": 9, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
-{ "id": 11, "tokens": [ 43, 279, 300 ] }
-{ "id": 12, "tokens": [ 64, 110, 196, 241, 249, 283, 288, 297 ] }
-{ "id": 13, "tokens": [ 21, 46, 88, 294, 296, 297, 300, 301 ] }
-{ "id": 14, "tokens": [ 18, 51, 241, 249, 280, 283, 288, 290, 295 ] }
-{ "id": 15, "tokens": [ 11, 101, 136, 261, 275, 294, 298 ] }
-{ "id": 16, "tokens": [ 26, 114, 147, 251, 292, 294, 295, 296, 297, 300 ] }
-{ "id": 17, "tokens": [ 86, 245, 275, 290, 294, 296, 298, 300 ] }
-{ "id": 18, "tokens": [ 4, 49, 137, 145, 177, 270, 288, 299 ] }
-{ "id": 19, "tokens": [ 175, 258, 288, 291, 297, 300 ] }
-{ "id": 20, "tokens": [ 9, 290, 296, 298, 300 ] }
-{ "id": 21, "tokens": [ 259, 261, 263, 294, 298 ] }
-{ "id": 22, "tokens": [ 116, 279, 293, 294, 297, 298 ] }
-{ "id": 23, "tokens": [ 63, 265, 294, 297 ] }
-{ "id": 24, "tokens": [ 259, 263, 294, 296, 297, 298, 300 ] }
-{ "id": 25, "tokens": [ 31, 47, 190, 204, 293, 301 ] }
-{ "id": 26, "tokens": [ 213, 240, 270 ] }
-{ "id": 27, "tokens": [ 85, 213, 259, 263, 270, 301 ] }
-{ "id": 28, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
-{ "id": 30, "tokens": [ 6, 267, 299, 300 ] }
-{ "id": 31, "tokens": [ 94, 238 ] }
-{ "id": 32, "tokens": [ 73, 165, 189, 297, 299 ] }
-{ "id": 33, "tokens": [ 68, 244, 286, 293, 299 ] }
-{ "id": 34, "tokens": [ 15, 34, 99, 267, 294, 297, 299, 300, 301 ] }
-{ "id": 35, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
-{ "id": 36, "tokens": [ 178, 201, 220, 291, 296, 298, 300 ] }
-{ "id": 37, "tokens": [ 108, 270, 279, 286, 299 ] }
-{ "id": 38, "tokens": [ 30, 174, 279, 298 ] }
-{ "id": 39, "tokens": [ 103, 130, 193, 260, 286, 292, 295, 299, 300 ] }
-{ "id": 40, "tokens": [ 44, 128, 256, 282, 297, 298, 301 ] }
-{ "id": 41, "tokens": [ 48, 57, 236, 256, 301 ] }
-{ "id": 42, "tokens": [ 90, 209, 244, 293, 299 ] }
-{ "id": 43, "tokens": [ 69, 98, 286, 293, 296, 297, 299, 300 ] }
-{ "id": 44, "tokens": [ 1, 202, 290, 295, 296, 300 ] }
-{ "id": 45, "tokens": [ 67, 100, 109, 296, 300 ] }
-{ "id": 46, "tokens": [ 23, 75, 117, 118, 160, 294, 295, 297 ] }
-{ "id": 47, "tokens": [ 45, 54, 193, 251 ] }
-{ "id": 48, "tokens": [ 95, 113, 159, 271, 273, 296, 299, 300 ] }
-{ "id": 49, "tokens": [ 120, 151, 162, 182, 271, 295, 297, 300 ] }
-{ "id": 50, "tokens": [ 5, 187, 292, 293, 296, 300 ] }
-{ "id": 51, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
-{ "id": 54, "tokens": [ 19, 62, 87, 135, 149, 245, 292, 293, 299 ] }
-{ "id": 55, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
-{ "id": 56, "tokens": [ 164, 252, 273, 296, 300 ] }
-{ "id": 57, "tokens": [ 7, 42, 296, 298, 300 ] }
-{ "id": 58, "tokens": [ 37, 102, 179, 256, 267, 292, 293, 295 ] }
-{ "id": 59, "tokens": [ 17, 286, 291, 296, 297, 300 ] }
-{ "id": 60, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
-{ "id": 63, "tokens": [ 260, 262, 281, 283, 288, 294, 297 ] }
-{ "id": 64, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
-{ "id": 65, "tokens": [ 36, 55, 221, 281, 283, 288, 294, 295, 297 ] }
-{ "id": 66, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "tokens": [ 127, 161, 184 ] }
-{ "id": 69, "tokens": [ 92 ] }
-{ "id": 70, "tokens": [ 126, 144, 299 ] }
-{ "id": 71, "tokens": [ 14, 112, 134, 169, 170, 181, 254, 282, 292, 293, 301 ] }
-{ "id": 72, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "tokens": [ 272 ] }
-{ "id": 81, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_4/dblp-2_4.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_4/dblp-2_4.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1/dblp-2_5.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.2.adm
deleted file mode 100644
index 633fa5b..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.2.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "len": 12, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "len": 9, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "len": 5, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "len": 6, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "len": 3, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "len": 13, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
-{ "id": 7, "len": 2, "tokens": [ 260, 290 ] }
-{ "id": 8, "len": 13, "tokens": [ 58, 121, 122, 133, 143, 209, 258, 291, 292, 296, 297, 298, 300 ] }
-{ "id": 9, "len": 5, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "len": 8, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
-{ "id": 11, "len": 3, "tokens": [ 43, 279, 300 ] }
-{ "id": 12, "len": 8, "tokens": [ 64, 110, 196, 241, 249, 283, 288, 297 ] }
-{ "id": 13, "len": 8, "tokens": [ 21, 46, 88, 294, 296, 297, 300, 301 ] }
-{ "id": 14, "len": 9, "tokens": [ 18, 51, 241, 249, 280, 283, 288, 290, 295 ] }
-{ "id": 15, "len": 7, "tokens": [ 11, 101, 136, 261, 275, 294, 298 ] }
-{ "id": 16, "len": 10, "tokens": [ 26, 114, 147, 251, 292, 294, 295, 296, 297, 300 ] }
-{ "id": 17, "len": 8, "tokens": [ 86, 245, 275, 290, 294, 296, 298, 300 ] }
-{ "id": 18, "len": 8, "tokens": [ 4, 49, 137, 145, 177, 270, 288, 299 ] }
-{ "id": 19, "len": 6, "tokens": [ 175, 258, 288, 291, 297, 300 ] }
-{ "id": 20, "len": 5, "tokens": [ 9, 290, 296, 298, 300 ] }
-{ "id": 21, "len": 5, "tokens": [ 259, 261, 263, 294, 298 ] }
-{ "id": 22, "len": 6, "tokens": [ 116, 279, 293, 294, 297, 298 ] }
-{ "id": 23, "len": 4, "tokens": [ 63, 265, 294, 297 ] }
-{ "id": 24, "len": 7, "tokens": [ 259, 263, 294, 296, 297, 298, 300 ] }
-{ "id": 25, "len": 6, "tokens": [ 31, 47, 190, 204, 293, 301 ] }
-{ "id": 26, "len": 3, "tokens": [ 213, 240, 270 ] }
-{ "id": 27, "len": 6, "tokens": [ 85, 213, 259, 263, 270, 301 ] }
-{ "id": 28, "len": 6, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "len": 7, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
-{ "id": 30, "len": 4, "tokens": [ 6, 267, 299, 300 ] }
-{ "id": 31, "len": 2, "tokens": [ 94, 238 ] }
-{ "id": 32, "len": 5, "tokens": [ 73, 165, 189, 297, 299 ] }
-{ "id": 33, "len": 5, "tokens": [ 68, 244, 286, 293, 299 ] }
-{ "id": 34, "len": 9, "tokens": [ 15, 34, 99, 267, 294, 297, 299, 300, 301 ] }
-{ "id": 35, "len": 7, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
-{ "id": 36, "len": 7, "tokens": [ 178, 201, 220, 291, 296, 298, 300 ] }
-{ "id": 37, "len": 5, "tokens": [ 108, 270, 279, 286, 299 ] }
-{ "id": 38, "len": 4, "tokens": [ 30, 174, 279, 298 ] }
-{ "id": 39, "len": 9, "tokens": [ 103, 130, 193, 260, 286, 292, 295, 299, 300 ] }
-{ "id": 40, "len": 7, "tokens": [ 44, 128, 256, 282, 297, 298, 301 ] }
-{ "id": 41, "len": 5, "tokens": [ 48, 57, 236, 256, 301 ] }
-{ "id": 42, "len": 5, "tokens": [ 90, 209, 244, 293, 299 ] }
-{ "id": 43, "len": 8, "tokens": [ 69, 98, 286, 293, 296, 297, 299, 300 ] }
-{ "id": 44, "len": 6, "tokens": [ 1, 202, 290, 295, 296, 300 ] }
-{ "id": 45, "len": 5, "tokens": [ 67, 100, 109, 296, 300 ] }
-{ "id": 46, "len": 8, "tokens": [ 23, 75, 117, 118, 160, 294, 295, 297 ] }
-{ "id": 47, "len": 4, "tokens": [ 45, 54, 193, 251 ] }
-{ "id": 48, "len": 8, "tokens": [ 95, 113, 159, 271, 273, 296, 299, 300 ] }
-{ "id": 49, "len": 8, "tokens": [ 120, 151, 162, 182, 271, 295, 297, 300 ] }
-{ "id": 50, "len": 6, "tokens": [ 5, 187, 292, 293, 296, 300 ] }
-{ "id": 51, "len": 3, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "len": 7, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "len": 6, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
-{ "id": 54, "len": 9, "tokens": [ 19, 62, 87, 135, 149, 245, 292, 293, 299 ] }
-{ "id": 55, "len": 7, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
-{ "id": 56, "len": 5, "tokens": [ 164, 252, 273, 296, 300 ] }
-{ "id": 57, "len": 5, "tokens": [ 7, 42, 296, 298, 300 ] }
-{ "id": 58, "len": 8, "tokens": [ 37, 102, 179, 256, 267, 292, 293, 295 ] }
-{ "id": 59, "len": 6, "tokens": [ 17, 286, 291, 296, 297, 300 ] }
-{ "id": 60, "len": 4, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "len": 8, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "len": 9, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
-{ "id": 63, "len": 7, "tokens": [ 260, 262, 281, 283, 288, 294, 297 ] }
-{ "id": 64, "len": 7, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
-{ "id": 65, "len": 9, "tokens": [ 36, 55, 221, 281, 283, 288, 294, 295, 297 ] }
-{ "id": 66, "len": 10, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "len": 6, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "len": 3, "tokens": [ 127, 161, 184 ] }
-{ "id": 69, "len": 1, "tokens": [ 92 ] }
-{ "id": 70, "len": 3, "tokens": [ 126, 144, 299 ] }
-{ "id": 71, "len": 11, "tokens": [ 14, 112, 134, 169, 170, 181, 254, 282, 292, 293, 301 ] }
-{ "id": 72, "len": 6, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "len": 7, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "len": 12, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "len": 4, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "len": 8, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "len": 4, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "len": 5, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "len": 5, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "len": 1, "tokens": [ 272 ] }
-{ "id": 81, "len": 11, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "len": 12, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "len": 13, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "len": 14, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "len": 11, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "len": 12, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "len": 13, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "len": 15, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "len": 9, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "len": 13, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "len": 11, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "len": 10, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "len": 6, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "len": 5, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "len": 16, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "len": 18, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "len": 13, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "len": 14, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "len": 6, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "len": 5, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.2/dblp-2_5.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.1/dblp-2_5.3.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.adm
deleted file mode 100644
index 633fa5b..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "len": 12, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "len": 9, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "len": 5, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "len": 6, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "len": 3, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "len": 13, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
-{ "id": 7, "len": 2, "tokens": [ 260, 290 ] }
-{ "id": 8, "len": 13, "tokens": [ 58, 121, 122, 133, 143, 209, 258, 291, 292, 296, 297, 298, 300 ] }
-{ "id": 9, "len": 5, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "len": 8, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
-{ "id": 11, "len": 3, "tokens": [ 43, 279, 300 ] }
-{ "id": 12, "len": 8, "tokens": [ 64, 110, 196, 241, 249, 283, 288, 297 ] }
-{ "id": 13, "len": 8, "tokens": [ 21, 46, 88, 294, 296, 297, 300, 301 ] }
-{ "id": 14, "len": 9, "tokens": [ 18, 51, 241, 249, 280, 283, 288, 290, 295 ] }
-{ "id": 15, "len": 7, "tokens": [ 11, 101, 136, 261, 275, 294, 298 ] }
-{ "id": 16, "len": 10, "tokens": [ 26, 114, 147, 251, 292, 294, 295, 296, 297, 300 ] }
-{ "id": 17, "len": 8, "tokens": [ 86, 245, 275, 290, 294, 296, 298, 300 ] }
-{ "id": 18, "len": 8, "tokens": [ 4, 49, 137, 145, 177, 270, 288, 299 ] }
-{ "id": 19, "len": 6, "tokens": [ 175, 258, 288, 291, 297, 300 ] }
-{ "id": 20, "len": 5, "tokens": [ 9, 290, 296, 298, 300 ] }
-{ "id": 21, "len": 5, "tokens": [ 259, 261, 263, 294, 298 ] }
-{ "id": 22, "len": 6, "tokens": [ 116, 279, 293, 294, 297, 298 ] }
-{ "id": 23, "len": 4, "tokens": [ 63, 265, 294, 297 ] }
-{ "id": 24, "len": 7, "tokens": [ 259, 263, 294, 296, 297, 298, 300 ] }
-{ "id": 25, "len": 6, "tokens": [ 31, 47, 190, 204, 293, 301 ] }
-{ "id": 26, "len": 3, "tokens": [ 213, 240, 270 ] }
-{ "id": 27, "len": 6, "tokens": [ 85, 213, 259, 263, 270, 301 ] }
-{ "id": 28, "len": 6, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "len": 7, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
-{ "id": 30, "len": 4, "tokens": [ 6, 267, 299, 300 ] }
-{ "id": 31, "len": 2, "tokens": [ 94, 238 ] }
-{ "id": 32, "len": 5, "tokens": [ 73, 165, 189, 297, 299 ] }
-{ "id": 33, "len": 5, "tokens": [ 68, 244, 286, 293, 299 ] }
-{ "id": 34, "len": 9, "tokens": [ 15, 34, 99, 267, 294, 297, 299, 300, 301 ] }
-{ "id": 35, "len": 7, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
-{ "id": 36, "len": 7, "tokens": [ 178, 201, 220, 291, 296, 298, 300 ] }
-{ "id": 37, "len": 5, "tokens": [ 108, 270, 279, 286, 299 ] }
-{ "id": 38, "len": 4, "tokens": [ 30, 174, 279, 298 ] }
-{ "id": 39, "len": 9, "tokens": [ 103, 130, 193, 260, 286, 292, 295, 299, 300 ] }
-{ "id": 40, "len": 7, "tokens": [ 44, 128, 256, 282, 297, 298, 301 ] }
-{ "id": 41, "len": 5, "tokens": [ 48, 57, 236, 256, 301 ] }
-{ "id": 42, "len": 5, "tokens": [ 90, 209, 244, 293, 299 ] }
-{ "id": 43, "len": 8, "tokens": [ 69, 98, 286, 293, 296, 297, 299, 300 ] }
-{ "id": 44, "len": 6, "tokens": [ 1, 202, 290, 295, 296, 300 ] }
-{ "id": 45, "len": 5, "tokens": [ 67, 100, 109, 296, 300 ] }
-{ "id": 46, "len": 8, "tokens": [ 23, 75, 117, 118, 160, 294, 295, 297 ] }
-{ "id": 47, "len": 4, "tokens": [ 45, 54, 193, 251 ] }
-{ "id": 48, "len": 8, "tokens": [ 95, 113, 159, 271, 273, 296, 299, 300 ] }
-{ "id": 49, "len": 8, "tokens": [ 120, 151, 162, 182, 271, 295, 297, 300 ] }
-{ "id": 50, "len": 6, "tokens": [ 5, 187, 292, 293, 296, 300 ] }
-{ "id": 51, "len": 3, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "len": 7, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "len": 6, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
-{ "id": 54, "len": 9, "tokens": [ 19, 62, 87, 135, 149, 245, 292, 293, 299 ] }
-{ "id": 55, "len": 7, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
-{ "id": 56, "len": 5, "tokens": [ 164, 252, 273, 296, 300 ] }
-{ "id": 57, "len": 5, "tokens": [ 7, 42, 296, 298, 300 ] }
-{ "id": 58, "len": 8, "tokens": [ 37, 102, 179, 256, 267, 292, 293, 295 ] }
-{ "id": 59, "len": 6, "tokens": [ 17, 286, 291, 296, 297, 300 ] }
-{ "id": 60, "len": 4, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "len": 8, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "len": 9, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
-{ "id": 63, "len": 7, "tokens": [ 260, 262, 281, 283, 288, 294, 297 ] }
-{ "id": 64, "len": 7, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
-{ "id": 65, "len": 9, "tokens": [ 36, 55, 221, 281, 283, 288, 294, 295, 297 ] }
-{ "id": 66, "len": 10, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "len": 6, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "len": 3, "tokens": [ 127, 161, 184 ] }
-{ "id": 69, "len": 1, "tokens": [ 92 ] }
-{ "id": 70, "len": 3, "tokens": [ 126, 144, 299 ] }
-{ "id": 71, "len": 11, "tokens": [ 14, 112, 134, 169, 170, 181, 254, 282, 292, 293, 301 ] }
-{ "id": 72, "len": 6, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "len": 7, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "len": 12, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "len": 4, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "len": 8, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "len": 4, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "len": 5, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "len": 5, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "len": 1, "tokens": [ 272 ] }
-{ "id": 81, "len": 11, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "len": 12, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "len": 13, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "len": 14, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "len": 11, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "len": 12, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "len": 13, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "len": 15, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "len": 9, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "len": 13, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "len": 11, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "len": 10, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "len": 6, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "len": 5, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "len": 16, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "len": 18, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "len": 13, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "len": 14, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "len": 6, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "len": 5, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.3/dblp-2_5.3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.adm
deleted file mode 100644
index 633fa5b..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.adm
+++ /dev/null
@@ -1,100 +0,0 @@
-{ "id": 1, "len": 12, "tokens": [ 138, 238, 254, 271, 282, 290, 292, 293, 295, 299, 300, 301 ] }
-{ "id": 2, "len": 9, "tokens": [ 3, 20, 25, 153, 258, 259, 274, 291, 300 ] }
-{ "id": 3, "len": 5, "tokens": [ 229, 261, 279, 294, 298 ] }
-{ "id": 4, "len": 6, "tokens": [ 28, 70, 242, 257, 294, 301 ] }
-{ "id": 5, "len": 3, "tokens": [ 236, 294, 297 ] }
-{ "id": 6, "len": 13, "tokens": [ 16, 60, 72, 81, 131, 155, 172, 185, 216, 275, 292, 296, 300 ] }
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-{ "id": 9, "len": 5, "tokens": [ 29, 53, 77, 154, 295 ] }
-{ "id": 10, "len": 8, "tokens": [ 40, 104, 220, 253, 261, 286, 293, 299 ] }
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-{ "id": 28, "len": 6, "tokens": [ 33, 82, 242, 279, 286, 292 ] }
-{ "id": 29, "len": 7, "tokens": [ 2, 32, 146, 290, 292, 296, 300 ] }
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-{ "id": 32, "len": 5, "tokens": [ 73, 165, 189, 297, 299 ] }
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-{ "id": 35, "len": 7, "tokens": [ 12, 56, 107, 217, 218, 293, 301 ] }
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-{ "id": 37, "len": 5, "tokens": [ 108, 270, 279, 286, 299 ] }
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-{ "id": 41, "len": 5, "tokens": [ 48, 57, 236, 256, 301 ] }
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-{ "id": 45, "len": 5, "tokens": [ 67, 100, 109, 296, 300 ] }
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-{ "id": 51, "len": 3, "tokens": [ 8, 91, 294 ] }
-{ "id": 52, "len": 7, "tokens": [ 84, 89, 96, 150, 216, 286, 292 ] }
-{ "id": 53, "len": 6, "tokens": [ 166, 201, 290, 296, 300, 301 ] }
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-{ "id": 55, "len": 7, "tokens": [ 78, 105, 106, 191, 286, 292, 295 ] }
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-{ "id": 57, "len": 5, "tokens": [ 7, 42, 296, 298, 300 ] }
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-{ "id": 60, "len": 4, "tokens": [ 22, 83, 224, 299 ] }
-{ "id": 61, "len": 8, "tokens": [ 196, 265, 281, 282, 283, 288, 293, 294 ] }
-{ "id": 62, "len": 9, "tokens": [ 125, 140, 265, 275, 280, 281, 283, 288, 294 ] }
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-{ "id": 64, "len": 7, "tokens": [ 224, 254, 260, 282, 293, 299, 301 ] }
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-{ "id": 66, "len": 10, "tokens": [ 111, 152, 188, 265, 267, 281, 283, 288, 295, 299 ] }
-{ "id": 67, "len": 6, "tokens": [ 79, 281, 282, 283, 288, 297 ] }
-{ "id": 68, "len": 3, "tokens": [ 127, 161, 184 ] }
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-{ "id": 72, "len": 6, "tokens": [ 39, 124, 156, 168, 173, 221 ] }
-{ "id": 73, "len": 7, "tokens": [ 35, 41, 272, 282, 293, 299, 301 ] }
-{ "id": 74, "len": 12, "tokens": [ 52, 65, 123, 163, 171, 176, 211, 271, 294, 295, 299, 301 ] }
-{ "id": 75, "len": 4, "tokens": [ 240, 270, 272, 301 ] }
-{ "id": 76, "len": 8, "tokens": [ 129, 217, 229, 263, 290, 291, 296, 301 ] }
-{ "id": 77, "len": 4, "tokens": [ 158, 271, 273, 299 ] }
-{ "id": 78, "len": 5, "tokens": [ 93, 115, 148, 204, 299 ] }
-{ "id": 79, "len": 5, "tokens": [ 167, 186, 202, 211, 301 ] }
-{ "id": 80, "len": 1, "tokens": [ 272 ] }
-{ "id": 81, "len": 11, "tokens": [ 142, 197, 215, 222, 226, 237, 276, 285, 287, 289, 298 ] }
-{ "id": 82, "len": 12, "tokens": [ 197, 215, 222, 226, 237, 276, 280, 284, 285, 287, 289, 298 ] }
-{ "id": 83, "len": 13, "tokens": [ 255, 264, 266, 268, 274, 276, 277, 278, 284, 285, 287, 289, 292 ] }
-{ "id": 84, "len": 14, "tokens": [ 264, 266, 268, 269, 274, 276, 277, 278, 280, 284, 285, 287, 289, 292 ] }
-{ "id": 85, "len": 11, "tokens": [ 199, 200, 205, 246, 248, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 86, "len": 12, "tokens": [ 199, 200, 219, 246, 248, 262, 272, 273, 278, 295, 298, 301 ] }
-{ "id": 87, "len": 13, "tokens": [ 195, 250, 255, 264, 266, 274, 276, 277, 278, 284, 287, 289, 291 ] }
-{ "id": 88, "len": 15, "tokens": [ 0, 195, 250, 264, 266, 274, 276, 277, 278, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 89, "len": 9, "tokens": [ 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 90, "len": 13, "tokens": [ 10, 66, 97, 139, 194, 208, 227, 232, 233, 243, 257, 290, 301 ] }
-{ "id": 91, "len": 11, "tokens": [ 203, 212, 219, 225, 228, 235, 239, 262, 295, 298, 301 ] }
-{ "id": 92, "len": 10, "tokens": [ 203, 205, 212, 225, 228, 235, 239, 295, 298, 301 ] }
-{ "id": 93, "len": 6, "tokens": [ 24, 157, 230, 252, 293, 298 ] }
-{ "id": 94, "len": 5, "tokens": [ 183, 230, 252, 275, 298 ] }
-{ "id": 95, "len": 16, "tokens": [ 27, 80, 132, 141, 192, 206, 207, 210, 214, 223, 247, 287, 289, 291, 295, 301 ] }
-{ "id": 96, "len": 18, "tokens": [ 61, 76, 192, 206, 207, 210, 214, 223, 247, 262, 269, 284, 285, 287, 289, 291, 295, 301 ] }
-{ "id": 97, "len": 13, "tokens": [ 198, 231, 234, 253, 255, 268, 269, 277, 284, 285, 287, 289, 291 ] }
-{ "id": 98, "len": 14, "tokens": [ 180, 198, 231, 234, 253, 268, 269, 277, 280, 284, 285, 287, 289, 291 ] }
-{ "id": 99, "len": 6, "tokens": [ 50, 59, 71, 74, 218, 301 ] }
-{ "id": 100, "len": 5, "tokens": [ 13, 38, 119, 293, 299 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5/dblp-2_5.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-2_5/dblp-2_5.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1/dblp-3_1.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.2.adm
deleted file mode 100644
index a10e906..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.2.adm
+++ /dev/null
@@ -1,13 +0,0 @@
-{ "left": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "right": { "id": 24, "dblpid": "books/acm/kim95/OzsuB95", "title": "Query Processing in Object-Oriented Database Systems.", "authors": "M. Tamer Özsu José A. Blakeley", "misc": "2002-01-03 146-174 1995 Modern Database Systems db/books/collections/kim95.html#OzsuB95" }, "sim": 0.5f }
-{ "left": { "id": 81, "dblpid": "journals/siamcomp/AspnesW96", "title": "Randomized Consensus in Expected O(n log² n) Operations Per Processor.", "authors": "James Aspnes Orli Waarts", "misc": "2002-01-03 1024-1044 1996 25 SIAM J. Comput. 5 db/journals/siamcomp/siamcomp25.html#AspnesW96" }, "right": { "id": 82, "dblpid": "conf/focs/AspnesW92", "title": "Randomized Consensus in Expected O(n log ^2 n) Operations Per Processor", "authors": "James Aspnes Orli Waarts", "misc": "2006-04-25 137-146 conf/focs/FOCS33 1992 FOCS db/conf/focs/focs92.html#AspnesW92" }, "sim": 0.7692308f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "sim": 0.8f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "sim": 0.625f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.5555556f }
-{ "left": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "right": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "sim": 0.5f }
-{ "left": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.6111111f }
-{ "left": { "id": 85, "dblpid": "journals/siamcomp/Megiddo83a", "title": "Linear-Time Algorithms for Linear Programming in R³ and Related Problems.", "authors": "Nimrod Megiddo", "misc": "2002-01-03 759-776 1983 12 SIAM J. Comput. 4 db/journals/siamcomp/siamcomp12.html#Megiddo83a" }, "right": { "id": 86, "dblpid": "conf/focs/Megiddo82", "title": "Linear-Time Algorithms for Linear Programming in R^3 and Related Problems", "authors": "Nimrod Megiddo", "misc": "2006-04-25 329-338 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#Megiddo82" }, "sim": 0.7692308f }
-{ "left": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.75f }
-{ "left": { "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }, "right": { "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }, "sim": 0.6923077f }
-{ "left": { "id": 91, "dblpid": "journals/corr/abs-0802-2861", "title": "Geometric Set Cover and Hitting Sets for Polytopes in $R^3$", "authors": "Sören Laue", "misc": "2008-03-03 http //arxiv.org/abs/0802.2861 2008 CoRR abs/0802.2861 db/journals/corr/corr0802.html#abs-0802-2861 informal publication" }, "right": { "id": 92, "dblpid": "conf/stacs/Laue08", "title": "Geometric Set Cover and Hitting Sets for Polytopes in R³.", "authors": "Sören Laue", "misc": "2008-03-04 2008 STACS 479-490 http //drops.dagstuhl.de/opus/volltexte/2008/1367 conf/stacs/2008 db/conf/stacs/stacs2008.html#Laue08" }, "sim": 0.75f }
-{ "left": { "id": 95, "dblpid": "journals/jacm/GalilHLSW87", "title": "An O(n³log n) deterministic and an O(n³) Las Vegs isomorphism test for trivalent graphs.", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2003-11-20 513-531 1987 34 J. ACM 3 http //doi.acm.org/10.1145/28869.28870 db/journals/jacm/jacm34.html#GalilHLSW87" }, "right": { "id": 96, "dblpid": "conf/focs/GalilHLSW82", "title": "An O(n^3 log n) Deterministic and an O(n^3) Probabilistic Isomorphism Test for Trivalent Graphs", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2006-04-25 118-125 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#GalilHLSW82" }, "sim": 0.54545456f }
-{ "left": { "id": 97, "dblpid": "journals/jacm/GalilT88", "title": "An O(n²(m + n log n)log n) min-cost flow algorithm.", "authors": "Zvi Galil Éva Tardos", "misc": "2003-11-20 374-386 1988 35 J. ACM 2 http //doi.acm.org/10.1145/42282.214090 db/journals/jacm/jacm35.html#GalilT88" }, "right": { "id": 98, "dblpid": "conf/focs/GalilT86", "title": "An O(n^2 (m + n log n) log n) Min-Cost Flow Algorithm", "authors": "Zvi Galil Éva Tardos", "misc": "2006-04-25 1-9 conf/focs/FOCS27 1986 FOCS db/conf/focs/focs86.html#GalilT86" }, "sim": 0.8f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.2/dblp-3_1.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.adm
deleted file mode 100644
index a10e906..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.adm
+++ /dev/null
@@ -1,13 +0,0 @@
-{ "left": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "right": { "id": 24, "dblpid": "books/acm/kim95/OzsuB95", "title": "Query Processing in Object-Oriented Database Systems.", "authors": "M. Tamer Özsu José A. Blakeley", "misc": "2002-01-03 146-174 1995 Modern Database Systems db/books/collections/kim95.html#OzsuB95" }, "sim": 0.5f }
-{ "left": { "id": 81, "dblpid": "journals/siamcomp/AspnesW96", "title": "Randomized Consensus in Expected O(n log² n) Operations Per Processor.", "authors": "James Aspnes Orli Waarts", "misc": "2002-01-03 1024-1044 1996 25 SIAM J. Comput. 5 db/journals/siamcomp/siamcomp25.html#AspnesW96" }, "right": { "id": 82, "dblpid": "conf/focs/AspnesW92", "title": "Randomized Consensus in Expected O(n log ^2 n) Operations Per Processor", "authors": "James Aspnes Orli Waarts", "misc": "2006-04-25 137-146 conf/focs/FOCS33 1992 FOCS db/conf/focs/focs92.html#AspnesW92" }, "sim": 0.7692308f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "sim": 0.8f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "sim": 0.625f }
-{ "left": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.5555556f }
-{ "left": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "right": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "sim": 0.5f }
-{ "left": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.6111111f }
-{ "left": { "id": 85, "dblpid": "journals/siamcomp/Megiddo83a", "title": "Linear-Time Algorithms for Linear Programming in R³ and Related Problems.", "authors": "Nimrod Megiddo", "misc": "2002-01-03 759-776 1983 12 SIAM J. Comput. 4 db/journals/siamcomp/siamcomp12.html#Megiddo83a" }, "right": { "id": 86, "dblpid": "conf/focs/Megiddo82", "title": "Linear-Time Algorithms for Linear Programming in R^3 and Related Problems", "authors": "Nimrod Megiddo", "misc": "2006-04-25 329-338 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#Megiddo82" }, "sim": 0.7692308f }
-{ "left": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "right": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" }, "sim": 0.75f }
-{ "left": { "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }, "right": { "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }, "sim": 0.6923077f }
-{ "left": { "id": 91, "dblpid": "journals/corr/abs-0802-2861", "title": "Geometric Set Cover and Hitting Sets for Polytopes in $R^3$", "authors": "Sören Laue", "misc": "2008-03-03 http //arxiv.org/abs/0802.2861 2008 CoRR abs/0802.2861 db/journals/corr/corr0802.html#abs-0802-2861 informal publication" }, "right": { "id": 92, "dblpid": "conf/stacs/Laue08", "title": "Geometric Set Cover and Hitting Sets for Polytopes in R³.", "authors": "Sören Laue", "misc": "2008-03-04 2008 STACS 479-490 http //drops.dagstuhl.de/opus/volltexte/2008/1367 conf/stacs/2008 db/conf/stacs/stacs2008.html#Laue08" }, "sim": 0.75f }
-{ "left": { "id": 95, "dblpid": "journals/jacm/GalilHLSW87", "title": "An O(n³log n) deterministic and an O(n³) Las Vegs isomorphism test for trivalent graphs.", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2003-11-20 513-531 1987 34 J. ACM 3 http //doi.acm.org/10.1145/28869.28870 db/journals/jacm/jacm34.html#GalilHLSW87" }, "right": { "id": 96, "dblpid": "conf/focs/GalilHLSW82", "title": "An O(n^3 log n) Deterministic and an O(n^3) Probabilistic Isomorphism Test for Trivalent Graphs", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2006-04-25 118-125 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#GalilHLSW82" }, "sim": 0.54545456f }
-{ "left": { "id": 97, "dblpid": "journals/jacm/GalilT88", "title": "An O(n²(m + n log n)log n) min-cost flow algorithm.", "authors": "Zvi Galil Éva Tardos", "misc": "2003-11-20 374-386 1988 35 J. ACM 2 http //doi.acm.org/10.1145/42282.214090 db/journals/jacm/jacm35.html#GalilT88" }, "right": { "id": 98, "dblpid": "conf/focs/GalilT86", "title": "An O(n^2 (m + n log n) log n) Min-Cost Flow Algorithm", "authors": "Zvi Galil Éva Tardos", "misc": "2006-04-25 1-9 conf/focs/FOCS27 1986 FOCS db/conf/focs/focs86.html#GalilT86" }, "sim": 0.8f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1/dblp-3_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-3_1/dblp-3_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1.adm
deleted file mode 100644
index b79bfe0..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1.adm
+++ /dev/null
@@ -1,13 +0,0 @@
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "dblp2": { "id": 24, "dblpid": "books/acm/kim95/OzsuB95", "title": "Query Processing in Object-Oriented Database Systems.", "authors": "M. Tamer Özsu José A. Blakeley", "misc": "2002-01-03 146-174 1995 Modern Database Systems db/books/collections/kim95.html#OzsuB95" } }
-{ "dblp": { "id": 81, "dblpid": "journals/siamcomp/AspnesW96", "title": "Randomized Consensus in Expected O(n log² n) Operations Per Processor.", "authors": "James Aspnes Orli Waarts", "misc": "2002-01-03 1024-1044 1996 25 SIAM J. Comput. 5 db/journals/siamcomp/siamcomp25.html#AspnesW96" }, "dblp2": { "id": 82, "dblpid": "conf/focs/AspnesW92", "title": "Randomized Consensus in Expected O(n log ^2 n) Operations Per Processor", "authors": "James Aspnes Orli Waarts", "misc": "2006-04-25 137-146 conf/focs/FOCS33 1992 FOCS db/conf/focs/focs92.html#AspnesW92" } }
-{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" } }
-{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" } }
-{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
-{ "dblp": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "dblp2": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" } }
-{ "dblp": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
-{ "dblp": { "id": 85, "dblpid": "journals/siamcomp/Megiddo83a", "title": "Linear-Time Algorithms for Linear Programming in R³ and Related Problems.", "authors": "Nimrod Megiddo", "misc": "2002-01-03 759-776 1983 12 SIAM J. Comput. 4 db/journals/siamcomp/siamcomp12.html#Megiddo83a" }, "dblp2": { "id": 86, "dblpid": "conf/focs/Megiddo82", "title": "Linear-Time Algorithms for Linear Programming in R^3 and Related Problems", "authors": "Nimrod Megiddo", "misc": "2006-04-25 329-338 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#Megiddo82" } }
-{ "dblp": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
-{ "dblp": { "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }, "dblp2": { "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" } }
-{ "dblp": { "id": 91, "dblpid": "journals/corr/abs-0802-2861", "title": "Geometric Set Cover and Hitting Sets for Polytopes in $R^3$", "authors": "Sören Laue", "misc": "2008-03-03 http //arxiv.org/abs/0802.2861 2008 CoRR abs/0802.2861 db/journals/corr/corr0802.html#abs-0802-2861 informal publication" }, "dblp2": { "id": 92, "dblpid": "conf/stacs/Laue08", "title": "Geometric Set Cover and Hitting Sets for Polytopes in R³.", "authors": "Sören Laue", "misc": "2008-03-04 2008 STACS 479-490 http //drops.dagstuhl.de/opus/volltexte/2008/1367 conf/stacs/2008 db/conf/stacs/stacs2008.html#Laue08" } }
-{ "dblp": { "id": 95, "dblpid": "journals/jacm/GalilHLSW87", "title": "An O(n³log n) deterministic and an O(n³) Las Vegs isomorphism test for trivalent graphs.", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2003-11-20 513-531 1987 34 J. ACM 3 http //doi.acm.org/10.1145/28869.28870 db/journals/jacm/jacm34.html#GalilHLSW87" }, "dblp2": { "id": 96, "dblpid": "conf/focs/GalilHLSW82", "title": "An O(n^3 log n) Deterministic and an O(n^3) Probabilistic Isomorphism Test for Trivalent Graphs", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2006-04-25 118-125 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#GalilHLSW82" } }
-{ "dblp": { "id": 97, "dblpid": "journals/jacm/GalilT88", "title": "An O(n²(m + n log n)log n) min-cost flow algorithm.", "authors": "Zvi Galil Éva Tardos", "misc": "2003-11-20 374-386 1988 35 J. ACM 2 http //doi.acm.org/10.1145/42282.214090 db/journals/jacm/jacm35.html#GalilT88" }, "dblp2": { "id": 98, "dblpid": "conf/focs/GalilT86", "title": "An O(n^2 (m + n log n) log n) Min-Cost Flow Algorithm", "authors": "Zvi Galil Éva Tardos", "misc": "2006-04-25 1-9 conf/focs/FOCS27 1986 FOCS db/conf/focs/focs86.html#GalilT86" } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.adm
new file mode 100644
index 0000000..10357e5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_1/dblp-aqlplus_1.1.adm
@@ -0,0 +1,12 @@
+{ "dblp": { "id": 81, "dblpid": "journals/siamcomp/AspnesW96", "title": "Randomized Consensus in Expected O(n log² n) Operations Per Processor.", "authors": "James Aspnes Orli Waarts", "misc": "2002-01-03 1024-1044 1996 25 SIAM J. Comput. 5 db/journals/siamcomp/siamcomp25.html#AspnesW96" }, "dblp2": { "id": 82, "dblpid": "conf/focs/AspnesW92", "title": "Randomized Consensus in Expected O(n log ^2 n) Operations Per Processor", "authors": "James Aspnes Orli Waarts", "misc": "2006-04-25 137-146 conf/focs/FOCS33 1992 FOCS db/conf/focs/focs92.html#AspnesW92" } }
+{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" } }
+{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" } }
+{ "dblp": { "id": 83, "dblpid": "journals/siamcomp/Bloniarz83", "title": "A Shortest-Path Algorithm with Expected Time O(n² log n log* n).", "authors": "Peter A. Bloniarz", "misc": "2002-01-03 588-600 1983 12 SIAM J. Comput. 3 db/journals/siamcomp/siamcomp12.html#Bloniarz83" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
+{ "dblp": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "dblp2": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" } }
+{ "dblp": { "id": 84, "dblpid": "conf/stoc/Bloniarz80", "title": "A Shortest-Path Algorithm with Expected Time O(n^2 log n log ^* n)", "authors": "Peter A. Bloniarz", "misc": "2006-04-25 378-384 conf/stoc/STOC12 1980 STOC db/conf/stoc/stoc80.html#Bloniarz80" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
+{ "dblp": { "id": 85, "dblpid": "journals/siamcomp/Megiddo83a", "title": "Linear-Time Algorithms for Linear Programming in R³ and Related Problems.", "authors": "Nimrod Megiddo", "misc": "2002-01-03 759-776 1983 12 SIAM J. Comput. 4 db/journals/siamcomp/siamcomp12.html#Megiddo83a" }, "dblp2": { "id": 86, "dblpid": "conf/focs/Megiddo82", "title": "Linear-Time Algorithms for Linear Programming in R^3 and Related Problems", "authors": "Nimrod Megiddo", "misc": "2006-04-25 329-338 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#Megiddo82" } }
+{ "dblp": { "id": 87, "dblpid": "journals/siamcomp/MoffatT87", "title": "An All Pairs Shortest Path Algorithm with Expected Time O(n² log n).", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2002-01-03 1023-1031 1987 16 SIAM J. Comput. 6 db/journals/siamcomp/siamcomp16.html#MoffatT87" }, "dblp2": { "id": 88, "dblpid": "conf/focs/MoffatT85", "title": "An All Pairs Shortest Path Algorithm with Expected Running Time O(n^2 log n)", "authors": "Alistair Moffat Tadao Takaoka", "misc": "2006-04-25 101-105 conf/focs/FOCS26 1985 FOCS db/conf/focs/focs85.html#MoffatT85" } }
+{ "dblp": { "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }, "dblp2": { "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" } }
+{ "dblp": { "id": 91, "dblpid": "journals/corr/abs-0802-2861", "title": "Geometric Set Cover and Hitting Sets for Polytopes in $R^3$", "authors": "Sören Laue", "misc": "2008-03-03 http //arxiv.org/abs/0802.2861 2008 CoRR abs/0802.2861 db/journals/corr/corr0802.html#abs-0802-2861 informal publication" }, "dblp2": { "id": 92, "dblpid": "conf/stacs/Laue08", "title": "Geometric Set Cover and Hitting Sets for Polytopes in R³.", "authors": "Sören Laue", "misc": "2008-03-04 2008 STACS 479-490 http //drops.dagstuhl.de/opus/volltexte/2008/1367 conf/stacs/2008 db/conf/stacs/stacs2008.html#Laue08" } }
+{ "dblp": { "id": 95, "dblpid": "journals/jacm/GalilHLSW87", "title": "An O(n³log n) deterministic and an O(n³) Las Vegs isomorphism test for trivalent graphs.", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2003-11-20 513-531 1987 34 J. ACM 3 http //doi.acm.org/10.1145/28869.28870 db/journals/jacm/jacm34.html#GalilHLSW87" }, "dblp2": { "id": 96, "dblpid": "conf/focs/GalilHLSW82", "title": "An O(n^3 log n) Deterministic and an O(n^3) Probabilistic Isomorphism Test for Trivalent Graphs", "authors": "Zvi Galil Christoph M. Hoffmann Eugene M. Luks Claus-Peter Schnorr Andreas Weber", "misc": "2006-04-25 118-125 conf/focs/FOCS23 1982 FOCS db/conf/focs/focs82.html#GalilHLSW82" } }
+{ "dblp": { "id": 97, "dblpid": "journals/jacm/GalilT88", "title": "An O(n²(m + n log n)log n) min-cost flow algorithm.", "authors": "Zvi Galil Éva Tardos", "misc": "2003-11-20 374-386 1988 35 J. ACM 2 http //doi.acm.org/10.1145/42282.214090 db/journals/jacm/jacm35.html#GalilT88" }, "dblp2": { "id": 98, "dblpid": "conf/focs/GalilT86", "title": "An O(n^2 (m + n log n) log n) Min-Cost Flow Algorithm", "authors": "Zvi Galil Éva Tardos", "misc": "2006-04-25 1-9 conf/focs/FOCS27 1986 FOCS db/conf/focs/focs86.html#GalilT86" } }
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-aqlplus_2/dblp-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_1.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_1.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_1/dblp-csx-2_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_2.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_2.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_2/dblp-csx-2_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_3.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_3.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_3/dblp-csx-2_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_4.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_4.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_4.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_4/dblp-csx-2_4.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1/dblp-csx-2_5.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.2.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.2.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.2/dblp-csx-2_5.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1/dblp-csx-2_5.3.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.3/dblp-csx-2_5.3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.adm
deleted file mode 100644
index 4e903d1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "idDBLP": 1, "idCSX": 1, "sim": 1.0f }
-{ "idDBLP": 5, "idCSX": 98, "sim": 1.0f }
-{ "idDBLP": 21, "idCSX": 89, "sim": 0.5f }
-{ "idDBLP": 25, "idCSX": 88, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 92, "sim": 1.0f }
-{ "idDBLP": 51, "idCSX": 93, "sim": 1.0f }
-{ "idDBLP": 54, "idCSX": 91, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_5/dblp-csx-2_5.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_6.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_6.3.1/dblp-csx-2_6.3.1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_6.3.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-2_6.3.1/dblp-csx-2_6.3.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.1/dblp-csx-3_1.1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.1/dblp-csx-3_1.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.2/dblp-csx-3_1.2.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.2.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.2/dblp-csx-3_1.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_1/dblp-csx-3_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_2.adm
deleted file mode 100644
index 256ab3a..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_2.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_2/dblp-csx-3_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_3.adm
deleted file mode 100644
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+++ /dev/null
@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.1.adm
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copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_3/dblp-csx-3_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_4.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_4.adm
deleted file mode 100644
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+++ /dev/null
@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_4/dblp-csx-3_4.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1/dblp-csx-3_5.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.2.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.2/dblp-csx-3_5.2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1/dblp-csx-3_5.3.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.3/dblp-csx-3_5.3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1/dblp-csx-3_5.4.1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.1.adm
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rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.4/dblp-csx-3_5.4.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.adm
deleted file mode 100644
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--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.adm
+++ /dev/null
@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 0.5f }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "sim": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.1.adm
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rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5.1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-3_5/dblp-csx-3_5.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_1.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.adm
new file mode 100644
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--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_1/dblp-csx-aqlplus_1.1.adm
@@ -0,0 +1,7 @@
+{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_2.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_2/dblp-csx-aqlplus_2.1.adm
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,7 @@
+{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_3.adm
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@@ -1,7 +0,0 @@
-{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 21, "dblpid": "books/acm/kim95/MengY95", "title": "Query Processing in Multidatabase Systems.", "authors": "Weiyi Meng Clement T. Yu", "misc": "2002-01-03 551-572 1995 Modern Database Systems db/books/collections/kim95.html#MengY95" }, "csx": { "id": 89, "csxid": "oai CiteSeerXPSU 10.1.1.33.8596", "title": "Dynamic Query Optimization and Query Processing in Multidatabase Systems 1.", "authors": "Henryk Josinski", "misc": "2009-04-15 Introduction  The multidatabase system (MDBS) approach, as a solution for integrated access to information distributed among diverse data sources, has gained a lot of attention in recent years. The multidatabase system is a database system which integrates pre--existing databases allowing the users to access simultaneously database systems (DBMSs) formulating a global query based on a global schema.  The component DBMSs are assumed to be heterogeneous and autonomous. Heterogeneity refers to different user interfaces, data models, query languages, and query optimization strategies [5]. Local autonomy means that each DBMS retains complete control over local data and processing. As result of this, its cost model may not be available to the global query optimizer.  When a global query is submitted, it is decomposed into two types of queries [1]   -- subqueries, operating on sharable data items from local databases,  -- assembling queries, consisting of, CiteSeerX  2009-04-15 2007-11-22 2000 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.33.8596 http //www.edbt2000.uni-konstanz.de/phd-workshop/papers/Josinski.pdf en 10.1.1.27.4704 10.1.1.51.8352 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
-{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-aqlplus_3/dblp-csx-aqlplus_3.1.adm
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,7 @@
+{ "dblp": { "id": 1, "dblpid": "books/acm/kim95/AnnevelinkACFHK95", "title": "Object SQL - A Language for the Design and Implementation of Object Databases.", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Daniel H. Fishman Michael L. Heytens William Kent", "misc": "2002-01-03 42-68 1995 Modern Database Systems db/books/collections/kim95.html#AnnevelinkACFHK95" }, "csx": { "id": 1, "csxid": "oai CiteSeerXPSU 10.1.1.39.1830", "title": "Object SQL - A Language for the Design and Implementation of Object Databases", "authors": "Jurgen Annevelink Rafiul Ahad Amelia Carlson Dan Fishman Mike Heytens William Kent", "misc": "2009-04-13 ly, a function application expression consists of two expressions  a function reference (labelled func_ref in Figure 3 line 2), and an argument (labelled arg). The func_ref expression evaluates to a (generic or specific) function identifier, which may be the same as the function that the expression is a part of, thus allowing recursive function invocations. The expression labelled arg evaluates to an arbitrary object or aggregate object. The semantics of evaluating function applications was discussed in detail in section 2. For example, to set the name of a person, we evaluate the following expression   FunAssign(function name.person) (p1,'John')  In this example, the first expression is itself a function call, applying the function FunAssign to the function name.person (an example of a specific function reference). This returns the oid of the function that sets a person's name, which is subsequently applied to a tuple of two elements, the oid of the person and the new name (a string o... CiteSeerX ACM Press 2009-04-13 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.1830 http //www.tu-chemnitz.de/~igrdb/docs/OpenODB/osql.ps.gz en 10.1.1.31.2534 10.1.1.28.4658 10.1.1.44.5947 10.1.1.39.199 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "csx": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "csx": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "csx": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "dblp": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "csx": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-dblp-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-dblp-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-csx-dblp-aqlplus_1/dblp-csx-dblp-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-lookup_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-lookup_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/dblp-lookup_1/dblp-lookup_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/events-users-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/events-users-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/events-users-aqlplus_1/events-users-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/tmp-1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/tmp-1/tmp-1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/tmp-1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/tmp-1/tmp-1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1/user-int-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_2.adm
deleted file mode 100644
index f61e1c3..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_2.adm
+++ /dev/null
@@ -1,6 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_2/user-int-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_3.adm
deleted file mode 100644
index f61e1c3..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_3.adm
+++ /dev/null
@@ -1,6 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} }, "user2": { "uid": 100, "name": "Curt Savage", "lottery_numbers": [ 47, 50, 53 ], "interests": {{ "singing", "painting", "biking" }} } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-int-aqlplus_3/user-int-aqlplus_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1.adm
deleted file mode 100644
index e3d63ca..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1.adm
+++ /dev/null
@@ -1,3 +0,0 @@
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": < "biking", "singing" > }, "sim": 1.0f }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": < "biking", "acting", "painting" > }, "sim": 0.5f }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "sim": 0.5f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.adm
new file mode 100644
index 0000000..63b0d8c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.1/user-lot-aqlplus_1.1.1.adm
@@ -0,0 +1,3 @@
+{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} }, "sim": 1.0f }
+{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} }, "sim": 0.5f }
+{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "sim": 0.5f }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.adm
deleted file mode 100644
index c1c7413..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1.adm
+++ /dev/null
@@ -1,5 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": < "biking", "acting", "painting" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "user2": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": < "kayaking", "running" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": < "biking", "singing" > } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_1/user-lot-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_2.adm
deleted file mode 100644
index c1c7413..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_2.adm
+++ /dev/null
@@ -1,5 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": < "biking", "acting", "painting" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "user2": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": < "kayaking", "running" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": < "biking", "singing" > } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_2/user-lot-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-lot-aqlplus_3/user-lot-aqlplus_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-3_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-3_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-3_1/user-vis-int-3_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1/user-vis-int-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_2.adm
deleted file mode 100644
index 693874d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_2.adm
+++ /dev/null
@@ -1,15 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": {{ "running", "swimming", "biking" }} } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1060, "name": "Mckenzie Neitzke", "lottery_numbers": [  ], "interests": {{ "hiking", "biking", "swimming" }} } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": {{ "swimming", "hiking", "running" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": {{ "acting", "running", "painting" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} } }
-{ "user": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": {{ "biking", "acting", "painting" }} }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": {{ "acting", "running", "painting" }} } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": {{ "acting", "running", "painting" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": {{ "running", "swimming", "biking" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1060, "name": "Mckenzie Neitzke", "lottery_numbers": [  ], "interests": {{ "hiking", "biking", "swimming" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": {{ "swimming", "hiking", "running" }} } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_2/user-vis-int-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_3.adm
deleted file mode 100644
index e96c143..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_3.adm
+++ /dev/null
@@ -1,15 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": < "running", "swimming", "biking" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": < "hiking", "running", "swimming", "biking" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1060, "name": "Mckenzie Neitzke", "lottery_numbers": [  ], "interests": < "hiking", "biking", "swimming" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": < "swimming", "hiking", "running" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": < "singing", "acting" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": < "acting", "singing" > } }
-{ "user": { "uid": 50, "name": "Lance Pracht", "lottery_numbers": [ 10, 20, 41 ], "interests": < "biking", "acting", "painting" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": < "running", "swimming", "biking" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": < "hiking", "running", "swimming", "biking" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1060, "name": "Mckenzie Neitzke", "lottery_numbers": [  ], "interests": < "hiking", "biking", "swimming" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": < "swimming", "hiking", "running" > } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-aqlplus_3/user-vis-int-aqlplus_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.adm
deleted file mode 100644
index 885a976..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1.adm
+++ /dev/null
@@ -1,8 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} }, "user2": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} }, "user2": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.adm
new file mode 100644
index 0000000..68524fa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-int-vis-user-lot-aqlplus_1/user-vis-int-vis-user-lot-aqlplus_1.1.adm
@@ -0,0 +1,8 @@
+{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} } }
+{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} } }
+{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} }, "user2": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} } }
+{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} }, "user2": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} } }
+{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} }, "user2": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} } }
+{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} }, "user2": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} } }
+{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} } }
+{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} }, "user2": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} } }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-3_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-3_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-3_1/user-vis-lot-3_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1/user-vis-lot-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_2.adm
deleted file mode 100644
index 2b94840..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_2.adm
+++ /dev/null
@@ -1,18 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": {{ "hiking", "running", "swimming" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": {{ "running", "swimming", "biking" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "hiking" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "biking", "painting" }} }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": {{ "swimming", "hiking", "running" }} } }
-{ "user": { "uid": 30, "name": "Marvella Loud", "lottery_numbers": [ 40, 41, 42 ], "interests": {{  }} }, "visitor": { "vid": 1040, "name": "Luella Schweinert", "lottery_numbers": [ 41, 42, 43 ], "interests": {{ "hiking", "kayaking" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "singing", "acting", "running" }} }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": {{ "acting", "running", "painting" }} } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "hiking" }} } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": {{ "acting", "singing" }} } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": {{ "acting", "running" }} }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": {{ "swimming", "hiking", "running" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": {{ "acting", "running" }} } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": {{ "running", "hiking", "biking" }} }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": {{ "singing", "acting" }} } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "hiking", "running", "swimming", "biking" }} } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": {{ "biking", "singing" }} }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": {{ "acting", "running", "painting" }} } }
-{ "user": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": {{ "kayaking", "running" }} }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": {{ "running", "swimming", "biking" }} } }
-{ "user": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": {{ "kayaking", "running" }} }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": {{ "hiking" }} } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_2/user-vis-lot-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_3.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_3.adm
deleted file mode 100644
index 6ddbfd1..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_3.adm
+++ /dev/null
@@ -1,18 +0,0 @@
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 10, "name": "Jodi Rotruck", "lottery_numbers": [ 10, 15, 20 ], "interests": < "hiking", "running", "swimming" > }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": < "singing", "acting" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": < "running", "swimming", "biking" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": < "hiking" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": < "acting", "singing" > } }
-{ "user": { "uid": 20, "name": "Clint Coil", "lottery_numbers": [ 20, 25, 30 ], "interests": < "biking", "painting" > }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": < "swimming", "hiking", "running" > } }
-{ "user": { "uid": 30, "name": "Marvella Loud", "lottery_numbers": [ 40, 41, 42 ], "interests": <  > }, "visitor": { "vid": 1040, "name": "Luella Schweinert", "lottery_numbers": [ 41, 42, 43 ], "interests": < "hiking", "kayaking" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": < "hiking", "running", "swimming", "biking" > } }
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": < "hiking" > } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > }, "visitor": { "vid": 1090, "name": "Jackson Fillerup", "lottery_numbers": [ 25, 30, 35 ], "interests": < "acting", "singing" > } }
-{ "user": { "uid": 60, "name": "Larry Gothier", "lottery_numbers": [ 25, 30, 31 ], "interests": < "acting", "running" > }, "visitor": { "vid": 1100, "name": "Laree Savasta", "lottery_numbers": [ 20, 30, 31 ], "interests": < "swimming", "hiking", "running" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1010, "name": "Alex Ascher", "lottery_numbers": [ 10, 15, 30 ], "interests": < "acting", "running" > } }
-{ "user": { "uid": 70, "name": "Obdulia Dicosmo", "lottery_numbers": [ 10, 15, 40 ], "interests": < "running", "hiking", "biking" > }, "visitor": { "vid": 1050, "name": "Harold Pendelton", "lottery_numbers": [ 10, 12, 15 ], "interests": < "singing", "acting" > } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": < "biking", "singing" > }, "visitor": { "vid": 1030, "name": "Shanna Cuaresma", "lottery_numbers": [ 45, 46, 47 ], "interests": < "hiking", "running", "swimming", "biking" > } }
-{ "user": { "uid": 80, "name": "Elias Leonardo", "lottery_numbers": [ 45, 46, 47 ], "interests": < "biking", "singing" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
-{ "user": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": < "kayaking", "running" > }, "visitor": { "vid": 1020, "name": "Hank Friley", "lottery_numbers": [ 20, 25 ], "interests": < "running", "swimming", "biking" > } }
-{ "user": { "uid": 90, "name": "Myrtice Cubias", "lottery_numbers": [ 20, 25, 43 ], "interests": < "kayaking", "running" > }, "visitor": { "vid": 1080, "name": "Mohammad Ohr", "lottery_numbers": [ 20, 25, 30 ], "interests": < "hiking" > } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_3/user-vis-lot-aqlplus_3.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_4.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_4.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_4/user-vis-lot-aqlplus_4.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_5.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_5.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-aqlplus_5/user-vis-lot-aqlplus_5.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1.adm
rename to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1/user-vis-lot-int-aqlplus_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_2.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_2.adm
deleted file mode 100644
index e70ef1d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_2.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "user": { "uid": 40, "name": "Tamie Pollara", "lottery_numbers": [ 45, 46, 47 ], "interests": < "singing", "acting", "running" > }, "visitor": { "vid": 1070, "name": "Crystal Isabella", "lottery_numbers": [ 41, 45, 46 ], "interests": < "acting", "running", "painting" > } }
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_1.adm
copy to asterix-app/src/test/resources/runtimets/results/fuzzyjoin/user-vis-lot-int-aqlplus_2/user-vis-lot-int-aqlplus_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_02/hdfs_02.1.adm b/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_02/hdfs_02.1.adm
new file mode 100644
index 0000000..d7ae022
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_02/hdfs_02.1.adm
@@ -0,0 +1,5 @@
+{ "word": "am", "count": 1 }
+{ "word": "grover", "count": 1 }
+{ "word": "hi", "count": 1 }
+{ "word": "i", "count": 1 }
+{ "word": "raman", "count": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_03/hdfs_03.1.adm b/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_03/hdfs_03.1.adm
new file mode 100644
index 0000000..1033913
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/hdfs/hdfs_03/hdfs_03.1.adm
@@ -0,0 +1,93 @@
+{ "word": "a", "count": 68 }
+{ "word": "addressing", "count": 34 }
+{ "word": "an", "count": 34 }
+{ "word": "analyzing", "count": 68 }
+{ "word": "and", "count": 238 }
+{ "word": "areas", "count": 34 }
+{ "word": "asterix", "count": 102 }
+{ "word": "by", "count": 34 }
+{ "word": "cases", "count": 68 }
+{ "word": "clusters", "count": 68 }
+{ "word": "combining", "count": 34 }
+{ "word": "commodity", "count": 34 }
+{ "word": "computing", "count": 102 }
+{ "word": "content", "count": 34 }
+{ "word": "create", "count": 34 }
+{ "word": "data", "count": 238 }
+{ "word": "database", "count": 34 }
+{ "word": "databases", "count": 34 }
+{ "word": "datum", "count": 34 }
+{ "word": "declarative", "count": 34 }
+{ "word": "developing", "count": 34 }
+{ "word": "distinct", "count": 34 }
+{ "word": "each", "count": 34 }
+{ "word": "for", "count": 34 }
+{ "word": "formats", "count": 34 }
+{ "word": "from", "count": 68 }
+{ "word": "generation", "count": 34 }
+{ "word": "highly", "count": 68 }
+{ "word": "ideas", "count": 34 }
+{ "word": "including", "count": 34 }
+{ "word": "indexing", "count": 68 }
+{ "word": "information", "count": 136 }
+{ "word": "ingesting", "count": 34 }
+{ "word": "intensive", "count": 68 }
+{ "word": "irregular", "count": 34 }
+{ "word": "is", "count": 204 }
+{ "word": "issues", "count": 34 }
+{ "word": "large", "count": 68 }
+{ "word": "managing", "count": 34 }
+{ "word": "merging", "count": 34 }
+{ "word": "much", "count": 34 }
+{ "word": "new", "count": 34 }
+{ "word": "next", "count": 34 }
+{ "word": "nothing", "count": 34 }
+{ "word": "of", "count": 136 }
+{ "word": "on", "count": 102 }
+{ "word": "open", "count": 68 }
+{ "word": "parallel", "count": 68 }
+{ "word": "performant", "count": 34 }
+{ "word": "platform", "count": 34 }
+{ "word": "problem", "count": 34 }
+{ "word": "processing", "count": 34 }
+{ "word": "project", "count": 68 }
+{ "word": "quantities", "count": 34 }
+{ "word": "query", "count": 34 }
+{ "word": "querying", "count": 34 }
+{ "word": "range", "count": 34 }
+{ "word": "ranging", "count": 34 }
+{ "word": "regular", "count": 34 }
+{ "word": "research", "count": 34 }
+{ "word": "running", "count": 34 }
+{ "word": "scalable", "count": 34 }
+{ "word": "scales", "count": 34 }
+{ "word": "semi", "count": 170 }
+{ "word": "shared", "count": 34 }
+{ "word": "software", "count": 34 }
+{ "word": "solutions", "count": 34 }
+{ "word": "source", "count": 34 }
+{ "word": "stance", "count": 34 }
+{ "word": "storage", "count": 34 }
+{ "word": "storing", "count": 34 }
+{ "word": "structured", "count": 170 }
+{ "word": "subscribing", "count": 34 }
+{ "word": "support", "count": 34 }
+{ "word": "tagged", "count": 34 }
+{ "word": "taking", "count": 34 }
+{ "word": "targets", "count": 34 }
+{ "word": "techniques", "count": 68 }
+{ "word": "technologies", "count": 34 }
+{ "word": "textual", "count": 34 }
+{ "word": "that", "count": 34 }
+{ "word": "the", "count": 102 }
+{ "word": "three", "count": 34 }
+{ "word": "to", "count": 170 }
+{ "word": "todays", "count": 34 }
+{ "word": "use", "count": 68 }
+{ "word": "vast", "count": 34 }
+{ "word": "very", "count": 34 }
+{ "word": "well", "count": 34 }
+{ "word": "where", "count": 68 }
+{ "word": "wide", "count": 34 }
+{ "word": "with", "count": 34 }
+{ "word": "yet", "count": 34 }
diff --git a/asterix-app/src/test/resources/runtimets/results/hdfs/issue_245_hdfs/issue_245_hdfs.1.adm b/asterix-app/src/test/resources/runtimets/results/hdfs/issue_245_hdfs/issue_245_hdfs.1.adm
new file mode 100644
index 0000000..8af2f5f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/hdfs/issue_245_hdfs/issue_245_hdfs.1.adm
@@ -0,0 +1,4 @@
+{ "line": "The ASTERIX project is developing new technologies for ingesting, storing, managing, indexing, querying, analyzing, and subscribing to vast quantities of semi-structured information" }
+{ "line": "The project is combining ideas from three distinct areas semi-structured data, parallel databases, and data-intensive computing  to create a next-generation, open source software platform that scales by running on large, shared-nothing commodity computing clusters" }
+{ "line": "ASTERIX targets a wide range of semi-structured information, ranging from data use cases where information is well-tagged and highly regular to content use cases where data is irregular and much of each datum is textual" }
+{ "line": "ASTERIX is taking an open stance on data formats and addressing research issues including highly scalable data storage and indexing, semi-structured query processing on very large clusters, and merging parallel database techniques with todays data-intensive computing techniques to support performant yet declarative solutions to the problem of analyzing semi-structured information" }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/20.adm b/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/scan/20.adm
copy to asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_5/issue_251_dataset_hint_5.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.adm b/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.adm
new file mode 100644
index 0000000..d7ae022
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_6/issue_251_dataset_hint_6.1.adm
@@ -0,0 +1,5 @@
+{ "word": "am", "count": 1 }
+{ "word": "grover", "count": 1 }
+{ "word": "hi", "count": 1 }
+{ "word": "i", "count": 1 }
+{ "word": "raman", "count": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.adm b/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.adm
new file mode 100644
index 0000000..9720960
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/hints/issue_251_dataset_hint_7/issue_251_dataset_hint_7.1.adm
@@ -0,0 +1,12 @@
+{ "id": "nc1:1", "username": "BronsonMike", "location": "", "text": "@GottaLaff @reutersus Christie and obama just foul weather friends", "timestamp": "Thu Dec 06 16:53:06 PST 2012" }
+{ "id": "nc1:100", "username": "KidrauhlProuds", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson  uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:102", "username": "jaysauce82", "location": "", "text": "Not voting for President Obama #BadDecision", "timestamp": "Thu Dec 06 16:53:16 PST 2012" }
+{ "id": "nc1:104", "username": "princeofsupras", "location": "", "text": "RT @01Direclieber: A filha do Michael Jackson e uma Belieber,a filha do Eminem e uma Belieber,as filhas de Obama sao Beliebers, e a filha do meu pai e Belieber", "timestamp": "Thu Dec 06 16:53:15 PST 2012" }
+{ "id": "nc1:106", "username": "GulfDogs", "location": "", "text": "Obama Admin Knew Libyan Terrorists Had US-Provided Weaponsteaparty #tcot #ccot #NewGuards #BreitbartArmy #patriotwttp://t.co/vJxzrQUE", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:108", "username": "Laugzpz", "location": "", "text": "@AlfredoJalife Maestro Obama se hace de la vista gorda, es un acuerdo de siempre creo yo.", "timestamp": "Thu Dec 06 16:53:14 PST 2012" }
+{ "id": "nc1:11", "username": "magarika", "location": "", "text": "RT @ken24xavier: Obama tells SOROS - our plan is ALMOST finished http://t.co/WvzK0GtU", "timestamp": "Thu Dec 06 16:53:05 PST 2012" }
+{ "id": "nc1:111", "username": "ToucanMall", "location": "", "text": "RT @WorldWar3Watch: Michelle Obama Gets More Grammy Nominations Than Justin ...  #Obama #WW3 http://t.co/0Wv2GKij", "timestamp": "Thu Dec 06 16:53:13 PST 2012" }
+{ "id": "nc1:113", "username": "ToucanMall", "location": "", "text": "RT @ObamaPalooza: Tiffany Shared What $2,000 Meant to Her ... and the President Stopped by to Talk About It http://t.co/sgT7lsNV #Obama", "timestamp": "Thu Dec 06 16:53:12 PST 2012" }
+{ "id": "nc1:115", "username": "thewildpitch", "location": "", "text": "RT @RevkahJC: Dennis Miller: Obama Should Just Say He Wants To Tax Successful People http://t.co/Ihlemy9Y", "timestamp": "Thu Dec 06 16:53:11 PST 2012" }
+{ "id": "nc1:117", "username": "Rnugent24", "location": "", "text": "RT @ConservativeQuo: unemployment is above 8% again. I wonder how long it will take for Obama to start blaming Bush? 3-2-1 #tcot #antiobama", "timestamp": "Thu Dec 06 16:53:10 PST 2012" }
+{ "id": "nc1:119", "username": "ToucanMall", "location": "", "text": "RT @Newitrsdotcom: I hope #Obama will win re-election... Other four years without meaningless #wars", "timestamp": "Thu Dec 06 16:53:09 PST 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-join/btree-primary-equi-join/btree-primary-equi-join.1.adm b/asterix-app/src/test/resources/runtimets/results/index-join/btree-primary-equi-join/btree-primary-equi-join.1.adm
new file mode 100644
index 0000000..bc2a454
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-join/btree-primary-equi-join/btree-primary-equi-join.1.adm
@@ -0,0 +1,3 @@
+{ "cid": 5, "oid": 10 }
+{ "cid": 775, "oid": 10 }
+{ "cid": 775, "oid": 1000 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.adm b/asterix-app/src/test/resources/runtimets/results/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.adm
new file mode 100644
index 0000000..7dcc1fc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-join/btree-secondary-equi-join/btree-secondary-equi-join.1.adm
@@ -0,0 +1,5 @@
+{ "aid": 5, "bid": 98, "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom" }
+{ "aid": 34, "bid": 57, "authors": "" }
+{ "aid": 54, "bid": 91, "authors": "Lynn Andrea Stein Henry Lieberman David Ungar" }
+{ "aid": 68, "bid": 57, "authors": "" }
+{ "aid": 69, "bid": 57, "authors": "" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.adm b/asterix-app/src/test/resources/runtimets/results/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.adm
new file mode 100644
index 0000000..6e8c011
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-join/rtree-spatial-intersect-point/rtree-spatial-intersect-point.1.adm
@@ -0,0 +1,44 @@
+{ "aid": 1, "bid": 17, "apt": point("4.1,7.0"), "bp": point("4.1,7.0") }
+{ "aid": 3, "bid": 4, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 3, "bid": 5, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 3, "bid": 6, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 3, "bid": 7, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 3, "bid": 8, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 4, "bid": 3, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 4, "bid": 5, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 4, "bid": 6, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 4, "bid": 7, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 4, "bid": 8, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 5, "bid": 3, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 5, "bid": 4, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 5, "bid": 6, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 5, "bid": 7, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 5, "bid": 8, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 6, "bid": 3, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 6, "bid": 4, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 6, "bid": 5, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 6, "bid": 7, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 6, "bid": 8, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 7, "bid": 3, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 7, "bid": 4, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 7, "bid": 5, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 7, "bid": 6, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 7, "bid": 8, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 8, "bid": 3, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 8, "bid": 4, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 8, "bid": 5, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 8, "bid": 6, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 8, "bid": 7, "apt": point("43.5083,-79.3007"), "bp": point("43.5083,-79.3007") }
+{ "aid": 15, "bid": 16, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 15, "bid": 18, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 15, "bid": 19, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 16, "bid": 15, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 16, "bid": 18, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 16, "bid": 19, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 17, "bid": 1, "apt": point("4.1,7.0"), "bp": point("4.1,7.0") }
+{ "aid": 18, "bid": 15, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 18, "bid": 16, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 18, "bid": 19, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 19, "bid": 15, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 19, "bid": 16, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
+{ "aid": 19, "bid": 18, "apt": point("-2.0,3.0"), "bp": point("-2.0,3.0") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.adm
new file mode 100644
index 0000000..590b9ff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key-mixed-intervals/btree-index-composite-key-mixed-intervals.1.adm
@@ -0,0 +1,11 @@
+{ "id": 215, "fname": "Karina", "lname": "Michelsen", "age": 46, "dept": "IT" }
+{ "id": 219, "fname": "Kurt", "lname": "Petermann", "age": 27, "dept": "Payroll" }
+{ "id": 463, "fname": "Marcie", "lname": "States", "age": 28, "dept": "IT" }
+{ "id": 589, "fname": "Lorrie", "lname": "Sharon", "age": 27, "dept": "IT" }
+{ "id": 681, "fname": "Max", "lname": "Teachout", "age": 34, "dept": "IT" }
+{ "id": 781, "fname": "Karina", "lname": "Tuthill", "age": 46, "dept": "Payroll" }
+{ "id": 955, "fname": "Max", "lname": "Mell", "age": 33, "dept": "HR" }
+{ "id": 965, "fname": "Micco", "lname": "Mercy", "age": 31, "dept": "Payroll" }
+{ "id": 1426, "fname": "Marcie", "lname": "Rasnake", "age": 42, "dept": "Sales" }
+{ "id": 5438, "fname": "Lakisha", "lname": "Quashie", "age": 29, "dept": "HR" }
+{ "id": 9941, "fname": "Khurram Faraaz", "lname": "Mohammed", "age": 30, "dept": "HR" }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key/btree-index-composite-key.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key/btree-index-composite-key.1.adm
new file mode 100644
index 0000000..cebf05b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-composite-key/btree-index-composite-key.1.adm
@@ -0,0 +1 @@
+{ "id": 881, "fname": "Julio", "lname": "Isa", "age": 38, "dept": "Sales" }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.adm
new file mode 100644
index 0000000..3bf46e6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/btree-index-rewrite-multiple/btree-index-rewrite-multiple.1.adm
@@ -0,0 +1,18 @@
+{ "o_orderkey": 1188, "o_custkey": 20, "o_orderstatus": "O", "o_orderkey2": 3911, "o_custkey2": 10, "o_orderstatus2": "P" }
+{ "o_orderkey": 1377, "o_custkey": 20, "o_orderstatus": "O", "o_orderkey2": 3911, "o_custkey2": 10, "o_orderstatus2": "P" }
+{ "o_orderkey": 1378, "o_custkey": 20, "o_orderstatus": "O", "o_orderkey2": 3911, "o_custkey2": 10, "o_orderstatus2": "P" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 227, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 517, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 1223, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 1860, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 1890, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 3428, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 3618, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 3843, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 3911, "o_custkey2": 10, "o_orderstatus2": "P" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 4032, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 4097, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 4388, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 4421, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 4449, "o_custkey2": 10, "o_orderstatus2": "O" }
+{ "o_orderkey": 3042, "o_custkey": 20, "o_orderstatus": "F", "o_orderkey2": 5123, "o_custkey2": 10, "o_orderstatus2": "O" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.adm
new file mode 100644
index 0000000..f5b5521
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/cust-index-age-nullable/cust-index-age-nullable.1.adm
@@ -0,0 +1,2 @@
+{ "cid": 92, "name": "Kenny Laychock", "age": 15, "address": { "number": 4790, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Basketball" }}, "children": [  ] }
+{ "cid": 112, "name": "Dorie Lave", "age": 10, "address": { "number": 2286, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Coffee" }}, "children": [ { "name": "Grady Lave", "age": null }, { "name": "Daysi Lave", "age": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.adm
new file mode 100644
index 0000000..a218d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.adm
@@ -0,0 +1 @@
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "title": "Management of Uncerainty in database Systems.", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.adm
new file mode 100644
index 0000000..a218d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.adm
@@ -0,0 +1 @@
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "title": "Management of Uncerainty in database Systems.", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.adm
new file mode 100644
index 0000000..9e33b16
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.adm
@@ -0,0 +1,854 @@
+{ "cid": 1, "name": "Trudie Minick", "age": 75, "address": { "number": 6740, "street": "Lake St.", "city": "Sunnyvale" }, "interests": [ "Fishing", "Squash" ], "children": [ { "name": "Arie Minick", "age": 56 }, { "name": "Alline Minick", "age": 57 }, { "name": "Petronila Minick", "age": 56 } ] }
+{ "cid": 2, "name": "Elin Debell", "age": 82, "address": { "number": 5649, "street": "Hill St.", "city": "Portland" }, "interests": [ "Bass", "Wine" ], "children": [ { "name": "Elvina Debell", "age": null }, { "name": "Renaldo Debell", "age": 51 }, { "name": "Divina Debell", "age": 57 } ] }
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": [ "Wine" ], "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 4, "name": "Bernita Gungor", "age": 87, "address": { "number": 1208, "street": "Cedar St.", "city": "Mountain View" }, "interests": [ "Walking" ], "children": [ { "name": "Valencia Gungor", "age": 72 }, { "name": "Evangeline Gungor", "age": 76 }, { "name": "Odell Gungor", "age": null }, { "name": "Denny Gungor", "age": null } ] }
+{ "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }
+{ "cid": 6, "name": "Cris Kager", "age": 70, "address": { "number": 8402, "street": "View St.", "city": "Los Angeles" }, "interests": [ "Walking" ], "children": [ { "name": "Carmelo Kager", "age": 34 }, { "name": "Faustina Kager", "age": null } ] }
+{ "cid": 7, "name": "Karie Kaehler", "age": 59, "address": { "number": 9875, "street": "View St.", "city": "San Jose" }, "interests": [ "Computers", "Skiing", "Basketball", "Movies" ], "children": [ { "name": "Spring Kaehler", "age": 17 } ] }
+{ "cid": 8, "name": "Audria Haylett", "age": 44, "address": { "number": 4872, "street": "Washington St.", "city": "Portland" }, "interests": [ "Cooking", "Fishing", "Video Games" ], "children": [ { "name": "Lacie Haylett", "age": 19 } ] }
+{ "cid": 9, "name": "Dreama Nuccio", "age": 55, "address": { "number": 95, "street": "Main St.", "city": "San Jose" }, "interests": [  ], "children": [ { "name": "Ricardo Nuccio", "age": 28 }, { "name": "See Nuccio", "age": 34 } ] }
+{ "cid": 10, "name": "Trent Liedy", "age": 51, "address": { "number": 1758, "street": "Oak St.", "city": "San Jose" }, "interests": [  ], "children": [  ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 12, "name": "Laurinda Raimann", "age": null, "address": null, "interests": [ "Basketball", "Coffee" ], "children": [ { "name": "Lulu Raimann", "age": null }, { "name": "Refugia Raimann", "age": 19 }, { "name": "Jimmie Raimann", "age": 10 }, { "name": "Cindy Raimann", "age": null } ] }
+{ "cid": 13, "name": "Nicol Kolmer", "age": null, "address": null, "interests": [ "Coffee" ], "children": [ { "name": "Erika Kolmer", "age": 40 }, { "name": "Justin Kolmer", "age": null }, { "name": "Dorathy Kolmer", "age": null }, { "name": "Anastacia Kolmer", "age": 27 } ] }
+{ "cid": 14, "name": "Chance Nicoson", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Willette Nicoson", "age": 39 }, { "name": "Glennis Nicoson", "age": null }, { "name": "Philip Nicoson", "age": null }, { "name": "Cody Nicoson", "age": 26 } ] }
+{ "cid": 15, "name": "Berry Faubel", "age": 55, "address": { "number": 2806, "street": "Oak St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Tiffiny Faubel", "age": 12 }, { "name": "Hilaria Faubel", "age": 19 }, { "name": "Wesley Faubel", "age": 37 }, { "name": "Wei Faubel", "age": 28 } ] }
+{ "cid": 16, "name": "Felisa Auletta", "age": 55, "address": { "number": 7737, "street": "View St.", "city": "San Jose" }, "interests": [ "Skiing", "Coffee", "Wine" ], "children": [ { "name": "Rosalia Auletta", "age": 36 } ] }
+{ "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }
+{ "cid": 18, "name": "Dewayne Ardan", "age": 32, "address": { "number": 8229, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Wine", "Walking", "Bass" ], "children": [ { "name": "Wen Ardan", "age": null }, { "name": "Sachiko Ardan", "age": 11 }, { "name": "Francis Ardan", "age": 20 } ] }
+{ "cid": 20, "name": "Annice Fulwider", "age": 59, "address": { "number": 4257, "street": "Park St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Arica Fulwider", "age": 47 }, { "name": "Charlotte Fulwider", "age": 16 }, { "name": "Robbi Fulwider", "age": 29 } ] }
+{ "cid": 21, "name": "Gidget Galamay", "age": 34, "address": { "number": 2854, "street": "Washington St.", "city": "Los Angeles" }, "interests": [  ], "children": [ { "name": "Brunilda Galamay", "age": null }, { "name": "Bethel Galamay", "age": null }, { "name": "Devon Galamay", "age": 17 } ] }
+{ "cid": 22, "name": "Sarita Burrer", "age": null, "address": null, "interests": [ "Cigars", "Computers" ], "children": [  ] }
+{ "cid": 23, "name": "Micheal Konen", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Myong Konen", "age": 26 }, { "name": "Celinda Konen", "age": 33 }, { "name": "Tammy Konen", "age": 53 }, { "name": "Chester Konen", "age": null } ] }
+{ "cid": 24, "name": "Hosea Wilburn", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 25, "name": "Goldie Vanhandel", "age": 37, "address": { "number": 6568, "street": "Lake St.", "city": "Sunnyvale" }, "interests": [ "Bass", "Fishing", "Cigars" ], "children": [  ] }
+{ "cid": 26, "name": "Jone Okuna", "age": 78, "address": { "number": 6006, "street": "7th St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Franchesca Okuna", "age": null }, { "name": "Fred Okuna", "age": 17 }, { "name": "Marcellus Okuna", "age": null } ] }
+{ "cid": 27, "name": "Hollie Hyun", "age": null, "address": null, "interests": [ "Skiing", "Walking" ], "children": [ { "name": "Morton Hyun", "age": null }, { "name": "Farrah Hyun", "age": 40 }, { "name": "Ali Hyun", "age": null } ] }
+{ "cid": 28, "name": "Ariana Gillert", "age": 54, "address": { "number": 7331, "street": "Lake St.", "city": "Mountain View" }, "interests": [ "Databases" ], "children": [ { "name": "Inge Gillert", "age": null }, { "name": "Jeraldine Gillert", "age": 13 } ] }
+{ "cid": 29, "name": "Ruthanne Tavana", "age": null, "address": null, "interests": [ "Movies" ], "children": [  ] }
+{ "cid": 30, "name": "Deedee Centner", "age": null, "address": null, "interests": [ "Skiing", "Wine", "Databases", "Movies" ], "children": [ { "name": "Lorilee Centner", "age": 30 }, { "name": "Thad Centner", "age": null } ] }
+{ "cid": 31, "name": "Venus Toboz", "age": 44, "address": { "number": 9465, "street": "View St.", "city": "Mountain View" }, "interests": [ "Running" ], "children": [ { "name": "Ashlie Toboz", "age": null } ] }
+{ "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Music" ], "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }
+{ "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": [ "Fishing", "Video Games" ], "children": [  ] }
+{ "cid": 34, "name": "Sam Tannahill", "age": null, "address": null, "interests": [ "Books" ], "children": [  ] }
+{ "cid": 36, "name": "Neoma Preist", "age": 69, "address": { "number": 4830, "street": "Lake St.", "city": "San Jose" }, "interests": [ "Databases", "Computers", "Coffee" ], "children": [ { "name": "Shery Preist", "age": null }, { "name": "Kelvin Preist", "age": 43 } ] }
+{ "cid": 37, "name": "Eliana Vient", "age": 89, "address": { "number": 4882, "street": "View St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Dario Vient", "age": 43 } ] }
+{ "cid": 38, "name": "Lawanna Abadi", "age": 35, "address": { "number": 6942, "street": "Cedar St.", "city": "Los Angeles" }, "interests": [  ], "children": [ { "name": "Arthur Abadi", "age": 10 } ] }
+{ "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }
+{ "cid": 40, "name": "Fidelia Connie", "age": 81, "address": { "number": 2298, "street": "Washington St.", "city": "Sunnyvale" }, "interests": [ "Basketball", "Base Jumping", "Walking", "Skiing" ], "children": [ { "name": "Elfreda Connie", "age": 43 }, { "name": "Josephine Connie", "age": 30 }, { "name": "Lucas Connie", "age": null } ] }
+{ "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }
+{ "cid": 42, "name": "Asley Simco", "age": 38, "address": { "number": 3322, "street": "Main St.", "city": "Mountain View" }, "interests": [ "Fishing", "Running", "Cigars" ], "children": [ { "name": "Micheal Simco", "age": null }, { "name": "Lawerence Simco", "age": null } ] }
+{ "cid": 44, "name": "Agustin Clubs", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Maxwell Clubs", "age": 31 }, { "name": "Rayna Clubs", "age": null }, { "name": "Darwin Clubs", "age": null } ] }
+{ "cid": 46, "name": "Columbus Huntington", "age": 22, "address": { "number": 3809, "street": "Washington St.", "city": "Mountain View" }, "interests": [ "Movies" ], "children": [ { "name": "Dana Huntington", "age": 10 }, { "name": "Rosa Huntington", "age": null } ] }
+{ "cid": 48, "name": "Delia Salveson", "age": 44, "address": { "number": 5596, "street": "7th St.", "city": "Portland" }, "interests": [ "Cigars", "Running", "Walking", "Running" ], "children": [ { "name": "Logan Salveson", "age": 21 }, { "name": "Temple Salveson", "age": 17 }, { "name": "Kimi Salveson", "age": null }, { "name": "Jacob Salveson", "age": 20 } ] }
+{ "cid": 49, "name": "Asa Schwing", "age": 70, "address": { "number": 2261, "street": "7th St.", "city": "Sunnyvale" }, "interests": [ "Tennis" ], "children": [ { "name": "Joy Schwing", "age": 15 } ] }
+{ "cid": 50, "name": "Lise Gorelli", "age": null, "address": null, "interests": [ "Books", "Wine", "Skiing", "Computers" ], "children": [ { "name": "Darleen Gorelli", "age": null }, { "name": "Latia Gorelli", "age": null }, { "name": "Page Gorelli", "age": null }, { "name": "Columbus Gorelli", "age": null } ] }
+{ "cid": 51, "name": "Simonne Cape", "age": null, "address": null, "interests": [ "Bass", "Bass", "Books" ], "children": [ { "name": "Leland Cape", "age": null }, { "name": "Gearldine Cape", "age": null } ] }
+{ "cid": 52, "name": "Janna Tish", "age": 12, "address": { "number": 2598, "street": "Washington St.", "city": "San Jose" }, "interests": [  ], "children": [ { "name": "Mackenzie Tish", "age": null }, { "name": "Ettie Tish", "age": null }, { "name": "Hortencia Tish", "age": null }, { "name": "Paul Tish", "age": null } ] }
+{ "cid": 53, "name": "Ricardo Greiwe", "age": 24, "address": { "number": 8983, "street": "View St.", "city": "Portland" }, "interests": [  ], "children": [  ] }
+{ "cid": 54, "name": "Haywood Vasiloff", "age": 63, "address": { "number": 8780, "street": "View St.", "city": "Sunnyvale" }, "interests": [  ], "children": [ { "name": "Celsa Vasiloff", "age": 40 }, { "name": "Shawana Vasiloff", "age": 43 }, { "name": "Joel Vasiloff", "age": 42 }, { "name": "Timmy Vasiloff", "age": 33 } ] }
+{ "cid": 55, "name": "Terrence Bryant", "age": 12, "address": { "number": 3188, "street": "Park St.", "city": "Seattle" }, "interests": [ "Wine", "Cooking" ], "children": [ { "name": "Dayna Bryant", "age": null } ] }
+{ "cid": 56, "name": "Andria Killelea", "age": null, "address": null, "interests": [ "Cigars", "Skiing" ], "children": [  ] }
+{ "cid": 57, "name": "Celestine Mac", "age": null, "address": null, "interests": [ "Wine", "Computers", "Books" ], "children": [ { "name": "Kathyrn Mac", "age": 44 } ] }
+{ "cid": 58, "name": "Rosemarie Mattei", "age": 80, "address": { "number": 1390, "street": "Park St.", "city": "Sunnyvale" }, "interests": [  ], "children": [ { "name": "Sonya Mattei", "age": 52 }, { "name": "Elenor Mattei", "age": null } ] }
+{ "cid": 59, "name": "Rea Villicana", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 61, "name": "Linsey Mose", "age": 17, "address": { "number": 9198, "street": "Lake St.", "city": "Portland" }, "interests": [ "Puzzles" ], "children": [ { "name": "Tilda Mose", "age": null }, { "name": "Lillie Mose", "age": null }, { "name": "Robyn Mose", "age": null } ] }
+{ "cid": 62, "name": "Kiley Machnik", "age": null, "address": null, "interests": [  ], "children": [  ] }
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+{ "cid": 149, "name": "Marcella Diamond", "age": 62, "address": { "number": 720, "street": "7th St.", "city": "Mountain View" }, "interests": [  ], "children": [ { "name": "Ezra Diamond", "age": null } ] }
+{ "cid": 150, "name": "Jesus Vanleeuwen", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Sueann Vanleeuwen", "age": 47 }, { "name": "Refugia Vanleeuwen", "age": null }, { "name": "Taisha Vanleeuwen", "age": null }, { "name": "Nathaniel Vanleeuwen", "age": null } ] }
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+{ "cid": 163, "name": "Marcelene Sparano", "age": 36, "address": { "number": 5722, "street": "View St.", "city": "San Jose" }, "interests": [ "Basketball", "Databases" ], "children": [ { "name": "Luz Sparano", "age": null }, { "name": "Cassandra Sparano", "age": 21 }, { "name": "Martina Sparano", "age": 21 }, { "name": "Elisabeth Sparano", "age": null } ] }
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+{ "cid": 427, "name": "Janay Presutti", "age": null, "address": null, "interests": [ "Walking" ], "children": [ { "name": "Julietta Presutti", "age": null } ] }
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+{ "cid": 433, "name": "Caleb Merrbach", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Amado Merrbach", "age": 45 } ] }
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+{ "cid": 436, "name": "Xenia Pool", "age": null, "address": null, "interests": [ "Books" ], "children": [  ] }
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+{ "cid": 438, "name": "Allegra Pefanis", "age": null, "address": null, "interests": [ "Computers", "Music", "Cigars" ], "children": [  ] }
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+{ "cid": 445, "name": "Walton Komo", "age": 16, "address": { "number": 8769, "street": "Main St.", "city": "Seattle" }, "interests": [ "Running", "Basketball", "Tennis" ], "children": [  ] }
+{ "cid": 446, "name": "Lilly Grannell", "age": 21, "address": { "number": 5894, "street": "Washington St.", "city": "San Jose" }, "interests": [ "Computers", "Tennis", "Puzzles", "Books" ], "children": [ { "name": "Victor Grannell", "age": null } ] }
+{ "cid": 447, "name": "Iris Schoneman", "age": 34, "address": { "number": 7648, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Bass", "Wine", "Puzzles", "Cigars" ], "children": [ { "name": "Shemika Schoneman", "age": 11 }, { "name": "Maritza Schoneman", "age": 21 }, { "name": "Martha Schoneman", "age": 20 } ] }
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+{ "cid": 450, "name": "Althea Mohammed", "age": null, "address": null, "interests": [ "Fishing", "Databases" ], "children": [ { "name": "Jasper Mohammed", "age": null } ] }
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+{ "cid": 459, "name": "Mable Ellwein", "age": 60, "address": { "number": 1138, "street": "Lake St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Stan Ellwein", "age": 19 }, { "name": "Ashlea Ellwein", "age": 13 }, { "name": "Tiesha Ellwein", "age": 28 } ] }
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+{ "cid": 828, "name": "Marcelle Steinhour", "age": null, "address": null, "interests": [ "Running", "Basketball", "Walking" ], "children": [ { "name": "Jimmie Steinhour", "age": 13 }, { "name": "Kirstie Steinhour", "age": 19 } ] }
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+{ "cid": 832, "name": "Alina Hosley", "age": null, "address": null, "interests": [ "Databases", "Databases", "Music" ], "children": [ { "name": "Sebrina Hosley", "age": null }, { "name": "Dyan Hosley", "age": null } ] }
+{ "cid": 833, "name": "Lakisha Petkoff", "age": null, "address": null, "interests": [ "Coffee" ], "children": [ { "name": "Brittanie Petkoff", "age": null }, { "name": "Ashli Petkoff", "age": null } ] }
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+{ "cid": 835, "name": "Raphael Marzili", "age": null, "address": null, "interests": [ "Music" ], "children": [ { "name": "Angelic Marzili", "age": 38 } ] }
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+{ "cid": 844, "name": "Madelene Ten", "age": null, "address": null, "interests": [ "Squash" ], "children": [ { "name": "Johanne Ten", "age": 39 }, { "name": "Lurline Ten", "age": null }, { "name": "Cathy Ten", "age": 49 } ] }
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+{ "cid": 846, "name": "Kieth Norlund", "age": 15, "address": { "number": 4039, "street": "Park St.", "city": "Mountain View" }, "interests": [ "Wine", "Walking", "Puzzles" ], "children": [ { "name": "Shawn Norlund", "age": null } ] }
+{ "cid": 847, "name": "Ashton Korba", "age": 25, "address": { "number": 6450, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Cigars", "Computers", "Walking", "Video Games" ], "children": [  ] }
+{ "cid": 848, "name": "Myrta Kopf", "age": null, "address": null, "interests": [ "Wine", "Basketball", "Base Jumping" ], "children": [  ] }
+{ "cid": 850, "name": "Garnet Younce", "age": null, "address": null, "interests": [ "Databases", "Video Games", "Books" ], "children": [ { "name": "Syble Younce", "age": 16 } ] }
+{ "cid": 851, "name": "Darrel Machia", "age": 31, "address": { "number": 3290, "street": "View St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Coy Machia", "age": 13 }, { "name": "Janean Machia", "age": 13 }, { "name": "Sandi Machia", "age": 18 } ] }
+{ "cid": 852, "name": "Terrell Ramsay", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 853, "name": "Denisse Peralto", "age": 25, "address": { "number": 3931, "street": "7th St.", "city": "Portland" }, "interests": [ "Tennis", "Walking", "Basketball" ], "children": [ { "name": "Asha Peralto", "age": 14 }, { "name": "Clark Peralto", "age": null }, { "name": "Jessika Peralto", "age": null }, { "name": "Nadene Peralto", "age": null } ] }
+{ "cid": 854, "name": "Angie Oyster", "age": 32, "address": { "number": 8860, "street": "Main St.", "city": "San Jose" }, "interests": [ "Coffee", "Movies", "Fishing" ], "children": [ { "name": "Hugh Oyster", "age": 10 } ] }
+{ "cid": 855, "name": "Rosette Reen", "age": 57, "address": { "number": 2767, "street": "Lake St.", "city": "Mountain View" }, "interests": [ "Basketball" ], "children": [  ] }
+{ "cid": 857, "name": "Kasie Fujioka", "age": null, "address": null, "interests": [ "Skiing", "Cigars" ], "children": [ { "name": "Leontine Fujioka", "age": null }, { "name": "Nga Fujioka", "age": 21 }, { "name": "Nathanael Fujioka", "age": 27 } ] }
+{ "cid": 858, "name": "Maricruz Dittberner", "age": null, "address": null, "interests": [ "Tennis", "Wine", "Cigars", "Video Games" ], "children": [  ] }
+{ "cid": 859, "name": "Mozelle Catillo", "age": 61, "address": { "number": 253, "street": "View St.", "city": "Los Angeles" }, "interests": [ "Databases", "Cooking", "Wine" ], "children": [  ] }
+{ "cid": 860, "name": "Isabelle Sept", "age": 88, "address": { "number": 4382, "street": "Washington St.", "city": "Portland" }, "interests": [ "Puzzles", "Books" ], "children": [  ] }
+{ "cid": 861, "name": "Hugh Mcbrien", "age": null, "address": null, "interests": [ "Skiing", "Cigars", "Cooking" ], "children": [ { "name": "Otha Mcbrien", "age": 38 } ] }
+{ "cid": 862, "name": "Constance Bries", "age": 77, "address": { "number": 2585, "street": "Oak St.", "city": "Los Angeles" }, "interests": [  ], "children": [ { "name": "Lizzie Bries", "age": 42 }, { "name": "Shenika Bries", "age": null }, { "name": "Phillip Bries", "age": null } ] }
+{ "cid": 864, "name": "Katharyn Zanotti", "age": 62, "address": { "number": 8336, "street": "7th St.", "city": "Sunnyvale" }, "interests": [ "Puzzles" ], "children": [ { "name": "Magan Zanotti", "age": null }, { "name": "Jacinto Zanotti", "age": null } ] }
+{ "cid": 865, "name": "Moon Marino", "age": 43, "address": { "number": 5710, "street": "Oak St.", "city": "Sunnyvale" }, "interests": [ "Skiing" ], "children": [ { "name": "Markita Marino", "age": 10 } ] }
+{ "cid": 866, "name": "Bonita Kauphusman", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 869, "name": "Lino Wooderson", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Nola Wooderson", "age": null }, { "name": "Leticia Wooderson", "age": 36 }, { "name": "Bernardine Wooderson", "age": null } ] }
+{ "cid": 870, "name": "Natosha Lufsey", "age": null, "address": null, "interests": [ "Cigars", "Walking" ], "children": [ { "name": "Tiffany Lufsey", "age": null } ] }
+{ "cid": 871, "name": "Lona Dacus", "age": null, "address": null, "interests": [ "Base Jumping" ], "children": [ { "name": "Pablo Dacus", "age": null }, { "name": "Darlene Dacus", "age": 45 }, { "name": "Darius Dacus", "age": 31 }, { "name": "Cordia Dacus", "age": null } ] }
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+{ "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }
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+{ "cid": 942, "name": "Emerson Keblish", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Leonora Keblish", "age": null } ] }
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+{ "cid": 949, "name": "Elissa Rogue", "age": null, "address": null, "interests": [ "Fishing", "Music" ], "children": [ { "name": "Noriko Rogue", "age": 41 }, { "name": "Lavona Rogue", "age": 39 } ] }
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+{ "cid": 955, "name": "Liliana Stenkamp", "age": null, "address": null, "interests": [ "Music" ], "children": [  ] }
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+{ "cid": 960, "name": "Lenore Limardi", "age": null, "address": null, "interests": [ "Music" ], "children": [ { "name": "Kris Limardi", "age": 12 } ] }
+{ "cid": 961, "name": "Mirian Herpolsheimer", "age": null, "address": null, "interests": [ "Music", "Fishing", "Computers" ], "children": [ { "name": "Larissa Herpolsheimer", "age": 41 }, { "name": "Markus Herpolsheimer", "age": null }, { "name": "Natacha Herpolsheimer", "age": null } ] }
+{ "cid": 962, "name": "Taryn Coley", "age": null, "address": null, "interests": [ "Running", "Basketball", "Cooking" ], "children": [  ] }
+{ "cid": 963, "name": "Mila Ditmars", "age": 29, "address": { "number": 5850, "street": "View St.", "city": "Sunnyvale" }, "interests": [ "Music" ], "children": [  ] }
+{ "cid": 964, "name": "Stephany Soders", "age": null, "address": null, "interests": [ "Tennis", "Wine", "Computers" ], "children": [  ] }
+{ "cid": 965, "name": "Mellie Risen", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Coreen Risen", "age": 36 }, { "name": "Faith Risen", "age": 34 }, { "name": "Crystle Risen", "age": 54 } ] }
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+{ "cid": 970, "name": "Pia Sudderth", "age": null, "address": null, "interests": [ "Databases" ], "children": [ { "name": "Ernestina Sudderth", "age": 15 }, { "name": "Larue Sudderth", "age": 46 }, { "name": "Toshia Sudderth", "age": 27 } ] }
+{ "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": [ "Movies", "Books" ], "children": [ { "name": "Kerri Malcomson", "age": null } ] }
+{ "cid": 975, "name": "Gary Whitemore", "age": null, "address": null, "interests": [  ], "children": [  ] }
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+{ "cid": 978, "name": "Rudy Watsky", "age": 32, "address": { "number": 2754, "street": "Oak St.", "city": "Seattle" }, "interests": [ "Cooking" ], "children": [  ] }
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+{ "cid": 981, "name": "Lilliam Lopus", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Tracey Lopus", "age": null } ] }
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+{ "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": [ "Coffee", "Movies", "Squash" ], "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] }
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+{ "cid": 986, "name": "Tennille Wikle", "age": 78, "address": { "number": 3428, "street": "View St.", "city": "Portland" }, "interests": [ "Movies", "Databases", "Wine" ], "children": [ { "name": "Lourie Wikle", "age": null }, { "name": "Laure Wikle", "age": null } ] }
+{ "cid": 987, "name": "Sharolyn Demchak", "age": 36, "address": { "number": 4672, "street": "Lake St.", "city": "San Jose" }, "interests": [  ], "children": [  ] }
+{ "cid": 988, "name": "Dagmar Plasky", "age": 89, "address": { "number": 1219, "street": "Park St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Dann Plasky", "age": 59 }, { "name": "Raye Plasky", "age": null }, { "name": "Sammie Plasky", "age": 36 }, { "name": "Kasi Plasky", "age": 24 } ] }
+{ "cid": 991, "name": "Leonel Toepperwein", "age": 62, "address": { "number": 8356, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Coffee", "Books" ], "children": [ { "name": "Sean Toepperwein", "age": null }, { "name": "Charline Toepperwein", "age": 49 }, { "name": "Hattie Toepperwein", "age": 22 }, { "name": "Melida Toepperwein", "age": null } ] }
+{ "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] }
+{ "cid": 993, "name": "Shawn Irie", "age": null, "address": null, "interests": [ "Fishing", "Cigars" ], "children": [ { "name": "Tonette Irie", "age": null } ] }
+{ "cid": 994, "name": "Isa Gravelle", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Lashonda Gravelle", "age": null }, { "name": "Carry Gravelle", "age": 58 } ] }
+{ "cid": 995, "name": "Kiersten Basila", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Norman Basila", "age": 17 }, { "name": "Reginia Basila", "age": null }, { "name": "Gilberto Basila", "age": null }, { "name": "Elvira Basila", "age": 49 } ] }
+{ "cid": 996, "name": "Elouise Wider", "age": null, "address": null, "interests": [ "Coffee", "Computers", "Base Jumping" ], "children": [  ] }
+{ "cid": 997, "name": "Yesenia Gao", "age": 38, "address": { "number": 5990, "street": "View St.", "city": "Portland" }, "interests": [ "Computers", "Computers", "Puzzles", "Puzzles" ], "children": [ { "name": "Jared Gao", "age": 11 }, { "name": "Sang Gao", "age": null }, { "name": "Jeanne Gao", "age": 13 }, { "name": "Lavona Gao", "age": 23 } ] }
+{ "cid": 998, "name": "Barry Schmaus", "age": 65, "address": { "number": 4894, "street": "View St.", "city": "Sunnyvale" }, "interests": [  ], "children": [ { "name": "Ma Schmaus", "age": 40 }, { "name": "Lashawn Schmaus", "age": 13 }, { "name": "Georgianne Schmaus", "age": 38 } ] }
+{ "cid": 999, "name": "Bo Chaim", "age": 59, "address": { "number": 8050, "street": "View St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Zandra Chaim", "age": 42 }, { "name": "Theda Chaim", "age": 14 }, { "name": "Sharika Chaim", "age": 22 } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.adm
new file mode 100644
index 0000000..6d89122
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.adm
@@ -0,0 +1,8 @@
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 132, "name": "Cindi Turntine", "age": 64, "address": { "number": 9432, "street": "Park St.", "city": "Portland" }, "interests": [ "Computers", "Wine" ], "children": [ { "name": "Howard Turntine", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": [ "Computers", "Wine", "Databases", "Walking" ], "children": [  ] }
+{ "cid": 389, "name": "Loraine Morfee", "age": 72, "address": { "number": 2945, "street": "Lake St.", "city": "Seattle" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Berry Morfee", "age": 30 } ] }
+{ "cid": 573, "name": "Tyree Ketcher", "age": null, "address": null, "interests": [ "Computers", "Walking" ], "children": [ { "name": "Aleisha Ketcher", "age": null }, { "name": "Vonda Ketcher", "age": null }, { "name": "Cyndy Ketcher", "age": 13 }, { "name": "Chassidy Ketcher", "age": 30 } ] }
+{ "cid": 658, "name": "Truman Leitner", "age": null, "address": null, "interests": [ "Computers", "Bass", "Walking" ], "children": [  ] }
+{ "cid": 716, "name": "Deirdre Bruderer", "age": null, "address": null, "interests": [ "Computers", "Wine" ], "children": [ { "name": "Coralee Bruderer", "age": null }, { "name": "Mina Bruderer", "age": null }, { "name": "Lindsey Bruderer", "age": 35 }, { "name": "Yi Bruderer", "age": null } ] }
+{ "cid": 838, "name": "Karan Aharon", "age": 88, "address": { "number": 8033, "street": "Washington St.", "city": "Portland" }, "interests": [ "Computers", "Movies", "Walking" ], "children": [ { "name": "Matha Aharon", "age": 16 } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.adm
new file mode 100644
index 0000000..71bb9d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.adm
@@ -0,0 +1 @@
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": [ "Computers", "Wine", "Databases", "Walking" ], "children": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.adm
new file mode 100644
index 0000000..fd1b75e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.adm
@@ -0,0 +1 @@
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-contains/inverted-index-ngram-contains.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.adm
new file mode 100644
index 0000000..a218d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance-panic/inverted-index-ngram-edit-distance-panic.1.adm
@@ -0,0 +1 @@
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "title": "Management of Uncerainty in database Systems.", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.adm
new file mode 100644
index 0000000..a218d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-edit-distance/inverted-index-ngram-edit-distance.1.adm
@@ -0,0 +1 @@
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "title": "Management of Uncerainty in database Systems.", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ngram-jaccard/inverted-index-ngram-jaccard.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.adm
new file mode 100644
index 0000000..9e33b16
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance-panic/inverted-index-olist-edit-distance-panic.1.adm
@@ -0,0 +1,854 @@
+{ "cid": 1, "name": "Trudie Minick", "age": 75, "address": { "number": 6740, "street": "Lake St.", "city": "Sunnyvale" }, "interests": [ "Fishing", "Squash" ], "children": [ { "name": "Arie Minick", "age": 56 }, { "name": "Alline Minick", "age": 57 }, { "name": "Petronila Minick", "age": 56 } ] }
+{ "cid": 2, "name": "Elin Debell", "age": 82, "address": { "number": 5649, "street": "Hill St.", "city": "Portland" }, "interests": [ "Bass", "Wine" ], "children": [ { "name": "Elvina Debell", "age": null }, { "name": "Renaldo Debell", "age": 51 }, { "name": "Divina Debell", "age": 57 } ] }
+{ "cid": 3, "name": "Phung Wheetley", "age": 12, "address": { "number": 5549, "street": "Hill St.", "city": "Mountain View" }, "interests": [ "Wine" ], "children": [ { "name": "Raelene Wheetley", "age": null }, { "name": "Dudley Wheetley", "age": null } ] }
+{ "cid": 4, "name": "Bernita Gungor", "age": 87, "address": { "number": 1208, "street": "Cedar St.", "city": "Mountain View" }, "interests": [ "Walking" ], "children": [ { "name": "Valencia Gungor", "age": 72 }, { "name": "Evangeline Gungor", "age": 76 }, { "name": "Odell Gungor", "age": null }, { "name": "Denny Gungor", "age": null } ] }
+{ "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }
+{ "cid": 6, "name": "Cris Kager", "age": 70, "address": { "number": 8402, "street": "View St.", "city": "Los Angeles" }, "interests": [ "Walking" ], "children": [ { "name": "Carmelo Kager", "age": 34 }, { "name": "Faustina Kager", "age": null } ] }
+{ "cid": 7, "name": "Karie Kaehler", "age": 59, "address": { "number": 9875, "street": "View St.", "city": "San Jose" }, "interests": [ "Computers", "Skiing", "Basketball", "Movies" ], "children": [ { "name": "Spring Kaehler", "age": 17 } ] }
+{ "cid": 8, "name": "Audria Haylett", "age": 44, "address": { "number": 4872, "street": "Washington St.", "city": "Portland" }, "interests": [ "Cooking", "Fishing", "Video Games" ], "children": [ { "name": "Lacie Haylett", "age": 19 } ] }
+{ "cid": 9, "name": "Dreama Nuccio", "age": 55, "address": { "number": 95, "street": "Main St.", "city": "San Jose" }, "interests": [  ], "children": [ { "name": "Ricardo Nuccio", "age": 28 }, { "name": "See Nuccio", "age": 34 } ] }
+{ "cid": 10, "name": "Trent Liedy", "age": 51, "address": { "number": 1758, "street": "Oak St.", "city": "San Jose" }, "interests": [  ], "children": [  ] }
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 12, "name": "Laurinda Raimann", "age": null, "address": null, "interests": [ "Basketball", "Coffee" ], "children": [ { "name": "Lulu Raimann", "age": null }, { "name": "Refugia Raimann", "age": 19 }, { "name": "Jimmie Raimann", "age": 10 }, { "name": "Cindy Raimann", "age": null } ] }
+{ "cid": 13, "name": "Nicol Kolmer", "age": null, "address": null, "interests": [ "Coffee" ], "children": [ { "name": "Erika Kolmer", "age": 40 }, { "name": "Justin Kolmer", "age": null }, { "name": "Dorathy Kolmer", "age": null }, { "name": "Anastacia Kolmer", "age": 27 } ] }
+{ "cid": 14, "name": "Chance Nicoson", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Willette Nicoson", "age": 39 }, { "name": "Glennis Nicoson", "age": null }, { "name": "Philip Nicoson", "age": null }, { "name": "Cody Nicoson", "age": 26 } ] }
+{ "cid": 15, "name": "Berry Faubel", "age": 55, "address": { "number": 2806, "street": "Oak St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Tiffiny Faubel", "age": 12 }, { "name": "Hilaria Faubel", "age": 19 }, { "name": "Wesley Faubel", "age": 37 }, { "name": "Wei Faubel", "age": 28 } ] }
+{ "cid": 16, "name": "Felisa Auletta", "age": 55, "address": { "number": 7737, "street": "View St.", "city": "San Jose" }, "interests": [ "Skiing", "Coffee", "Wine" ], "children": [ { "name": "Rosalia Auletta", "age": 36 } ] }
+{ "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }
+{ "cid": 18, "name": "Dewayne Ardan", "age": 32, "address": { "number": 8229, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Wine", "Walking", "Bass" ], "children": [ { "name": "Wen Ardan", "age": null }, { "name": "Sachiko Ardan", "age": 11 }, { "name": "Francis Ardan", "age": 20 } ] }
+{ "cid": 20, "name": "Annice Fulwider", "age": 59, "address": { "number": 4257, "street": "Park St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Arica Fulwider", "age": 47 }, { "name": "Charlotte Fulwider", "age": 16 }, { "name": "Robbi Fulwider", "age": 29 } ] }
+{ "cid": 21, "name": "Gidget Galamay", "age": 34, "address": { "number": 2854, "street": "Washington St.", "city": "Los Angeles" }, "interests": [  ], "children": [ { "name": "Brunilda Galamay", "age": null }, { "name": "Bethel Galamay", "age": null }, { "name": "Devon Galamay", "age": 17 } ] }
+{ "cid": 22, "name": "Sarita Burrer", "age": null, "address": null, "interests": [ "Cigars", "Computers" ], "children": [  ] }
+{ "cid": 23, "name": "Micheal Konen", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Myong Konen", "age": 26 }, { "name": "Celinda Konen", "age": 33 }, { "name": "Tammy Konen", "age": 53 }, { "name": "Chester Konen", "age": null } ] }
+{ "cid": 24, "name": "Hosea Wilburn", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 25, "name": "Goldie Vanhandel", "age": 37, "address": { "number": 6568, "street": "Lake St.", "city": "Sunnyvale" }, "interests": [ "Bass", "Fishing", "Cigars" ], "children": [  ] }
+{ "cid": 26, "name": "Jone Okuna", "age": 78, "address": { "number": 6006, "street": "7th St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Franchesca Okuna", "age": null }, { "name": "Fred Okuna", "age": 17 }, { "name": "Marcellus Okuna", "age": null } ] }
+{ "cid": 27, "name": "Hollie Hyun", "age": null, "address": null, "interests": [ "Skiing", "Walking" ], "children": [ { "name": "Morton Hyun", "age": null }, { "name": "Farrah Hyun", "age": 40 }, { "name": "Ali Hyun", "age": null } ] }
+{ "cid": 28, "name": "Ariana Gillert", "age": 54, "address": { "number": 7331, "street": "Lake St.", "city": "Mountain View" }, "interests": [ "Databases" ], "children": [ { "name": "Inge Gillert", "age": null }, { "name": "Jeraldine Gillert", "age": 13 } ] }
+{ "cid": 29, "name": "Ruthanne Tavana", "age": null, "address": null, "interests": [ "Movies" ], "children": [  ] }
+{ "cid": 30, "name": "Deedee Centner", "age": null, "address": null, "interests": [ "Skiing", "Wine", "Databases", "Movies" ], "children": [ { "name": "Lorilee Centner", "age": 30 }, { "name": "Thad Centner", "age": null } ] }
+{ "cid": 31, "name": "Venus Toboz", "age": 44, "address": { "number": 9465, "street": "View St.", "city": "Mountain View" }, "interests": [ "Running" ], "children": [ { "name": "Ashlie Toboz", "age": null } ] }
+{ "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Music" ], "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }
+{ "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": [ "Fishing", "Video Games" ], "children": [  ] }
+{ "cid": 34, "name": "Sam Tannahill", "age": null, "address": null, "interests": [ "Books" ], "children": [  ] }
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+{ "cid": 327, "name": "Minnie Scali", "age": null, "address": null, "interests": [ "Cooking", "Squash", "Skiing" ], "children": [ { "name": "Jalisa Scali", "age": null }, { "name": "Preston Scali", "age": null }, { "name": "Stephani Scali", "age": 47 }, { "name": "Candra Scali", "age": null } ] }
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+{ "cid": 403, "name": "Kayleigh Houey", "age": null, "address": null, "interests": [ "Fishing", "Music" ], "children": [ { "name": "Ta Houey", "age": null }, { "name": "Ayana Houey", "age": null }, { "name": "Dominique Houey", "age": null }, { "name": "Denise Houey", "age": 48 } ] }
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+{ "cid": 413, "name": "Maurice Landrie", "age": null, "address": null, "interests": [ "Computers", "Coffee" ], "children": [ { "name": "Gail Landrie", "age": 37 }, { "name": "Carylon Landrie", "age": null }, { "name": "Allen Landrie", "age": 16 }, { "name": "Andreas Landrie", "age": null } ] }
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+{ "cid": 422, "name": "Annmarie Whitcher", "age": null, "address": null, "interests": [ "Cigars" ], "children": [ { "name": "Honey Whitcher", "age": null }, { "name": "Dan Whitcher", "age": 22 } ] }
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+{ "cid": 427, "name": "Janay Presutti", "age": null, "address": null, "interests": [ "Walking" ], "children": [ { "name": "Julietta Presutti", "age": null } ] }
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+{ "cid": 433, "name": "Caleb Merrbach", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Amado Merrbach", "age": 45 } ] }
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+{ "cid": 800, "name": "Karon Johnsen", "age": null, "address": null, "interests": [ "Movies" ], "children": [ { "name": "Roselee Johnsen", "age": 25 } ] }
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+{ "cid": 828, "name": "Marcelle Steinhour", "age": null, "address": null, "interests": [ "Running", "Basketball", "Walking" ], "children": [ { "name": "Jimmie Steinhour", "age": 13 }, { "name": "Kirstie Steinhour", "age": 19 } ] }
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+{ "cid": 832, "name": "Alina Hosley", "age": null, "address": null, "interests": [ "Databases", "Databases", "Music" ], "children": [ { "name": "Sebrina Hosley", "age": null }, { "name": "Dyan Hosley", "age": null } ] }
+{ "cid": 833, "name": "Lakisha Petkoff", "age": null, "address": null, "interests": [ "Coffee" ], "children": [ { "name": "Brittanie Petkoff", "age": null }, { "name": "Ashli Petkoff", "age": null } ] }
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+{ "cid": 835, "name": "Raphael Marzili", "age": null, "address": null, "interests": [ "Music" ], "children": [ { "name": "Angelic Marzili", "age": 38 } ] }
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+{ "cid": 841, "name": "Omar Enwall", "age": null, "address": null, "interests": [ "Skiing", "Skiing", "Books" ], "children": [ { "name": "Kirby Enwall", "age": 31 }, { "name": "Cythia Enwall", "age": 24 }, { "name": "August Enwall", "age": null } ] }
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+{ "cid": 942, "name": "Emerson Keblish", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Leonora Keblish", "age": null } ] }
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+{ "cid": 949, "name": "Elissa Rogue", "age": null, "address": null, "interests": [ "Fishing", "Music" ], "children": [ { "name": "Noriko Rogue", "age": 41 }, { "name": "Lavona Rogue", "age": 39 } ] }
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+{ "cid": 955, "name": "Liliana Stenkamp", "age": null, "address": null, "interests": [ "Music" ], "children": [  ] }
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+{ "cid": 957, "name": "Lucius Schurr", "age": 75, "address": { "number": 3918, "street": "Main St.", "city": "Mountain View" }, "interests": [  ], "children": [ { "name": "Willetta Schurr", "age": 22 }, { "name": "Andre Schurr", "age": null }, { "name": "Merrilee Schurr", "age": 32 } ] }
+{ "cid": 958, "name": "Ricardo Pezzica", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Delois Pezzica", "age": 11 } ] }
+{ "cid": 960, "name": "Lenore Limardi", "age": null, "address": null, "interests": [ "Music" ], "children": [ { "name": "Kris Limardi", "age": 12 } ] }
+{ "cid": 961, "name": "Mirian Herpolsheimer", "age": null, "address": null, "interests": [ "Music", "Fishing", "Computers" ], "children": [ { "name": "Larissa Herpolsheimer", "age": 41 }, { "name": "Markus Herpolsheimer", "age": null }, { "name": "Natacha Herpolsheimer", "age": null } ] }
+{ "cid": 962, "name": "Taryn Coley", "age": null, "address": null, "interests": [ "Running", "Basketball", "Cooking" ], "children": [  ] }
+{ "cid": 963, "name": "Mila Ditmars", "age": 29, "address": { "number": 5850, "street": "View St.", "city": "Sunnyvale" }, "interests": [ "Music" ], "children": [  ] }
+{ "cid": 964, "name": "Stephany Soders", "age": null, "address": null, "interests": [ "Tennis", "Wine", "Computers" ], "children": [  ] }
+{ "cid": 965, "name": "Mellie Risen", "age": null, "address": null, "interests": [ "Tennis" ], "children": [ { "name": "Coreen Risen", "age": 36 }, { "name": "Faith Risen", "age": 34 }, { "name": "Crystle Risen", "age": 54 } ] }
+{ "cid": 966, "name": "Brigitte Quimby", "age": 13, "address": { "number": 203, "street": "Main St.", "city": "Mountain View" }, "interests": [ "Skiing", "Tennis" ], "children": [ { "name": "Ilona Quimby", "age": null }, { "name": "Shaunte Quimby", "age": null }, { "name": "Lorie Quimby", "age": null } ] }
+{ "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": [ "Databases", "Fishing", "Wine" ], "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] }
+{ "cid": 970, "name": "Pia Sudderth", "age": null, "address": null, "interests": [ "Databases" ], "children": [ { "name": "Ernestina Sudderth", "age": 15 }, { "name": "Larue Sudderth", "age": 46 }, { "name": "Toshia Sudderth", "age": 27 } ] }
+{ "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": [ "Movies", "Books" ], "children": [ { "name": "Kerri Malcomson", "age": null } ] }
+{ "cid": 975, "name": "Gary Whitemore", "age": null, "address": null, "interests": [  ], "children": [  ] }
+{ "cid": 976, "name": "Madalyn Nidiffer", "age": 35, "address": { "number": 7635, "street": "Main St.", "city": "San Jose" }, "interests": [ "Coffee", "Wine", "Music" ], "children": [ { "name": "Tricia Nidiffer", "age": 10 }, { "name": "Kevin Nidiffer", "age": 24 }, { "name": "Elyse Nidiffer", "age": null } ] }
+{ "cid": 978, "name": "Rudy Watsky", "age": 32, "address": { "number": 2754, "street": "Oak St.", "city": "Seattle" }, "interests": [ "Cooking" ], "children": [  ] }
+{ "cid": 979, "name": "Yoko Bailony", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Vivienne Bailony", "age": null }, { "name": "Lori Bailony", "age": 47 } ] }
+{ "cid": 980, "name": "Harley Lappe", "age": 56, "address": { "number": 647, "street": "Hill St.", "city": "Mountain View" }, "interests": [ "Books", "Cigars", "Basketball" ], "children": [ { "name": "Maxwell Lappe", "age": null }, { "name": "Gemma Lappe", "age": 32 }, { "name": "Ester Lappe", "age": 40 }, { "name": "Myles Lappe", "age": 36 } ] }
+{ "cid": 981, "name": "Lilliam Lopus", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Tracey Lopus", "age": null } ] }
+{ "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Bass", "Skiing" ], "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] }
+{ "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": [ "Coffee", "Movies", "Squash" ], "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] }
+{ "cid": 985, "name": "Arnette Farlow", "age": 23, "address": { "number": 7843, "street": "Main St.", "city": "Portland" }, "interests": [ "Running", "Databases" ], "children": [ { "name": "Lora Farlow", "age": 12 }, { "name": "Arlen Farlow", "age": 11 }, { "name": "Rodney Farlow", "age": null }, { "name": "Tori Farlow", "age": 11 } ] }
+{ "cid": 986, "name": "Tennille Wikle", "age": 78, "address": { "number": 3428, "street": "View St.", "city": "Portland" }, "interests": [ "Movies", "Databases", "Wine" ], "children": [ { "name": "Lourie Wikle", "age": null }, { "name": "Laure Wikle", "age": null } ] }
+{ "cid": 987, "name": "Sharolyn Demchak", "age": 36, "address": { "number": 4672, "street": "Lake St.", "city": "San Jose" }, "interests": [  ], "children": [  ] }
+{ "cid": 988, "name": "Dagmar Plasky", "age": 89, "address": { "number": 1219, "street": "Park St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Dann Plasky", "age": 59 }, { "name": "Raye Plasky", "age": null }, { "name": "Sammie Plasky", "age": 36 }, { "name": "Kasi Plasky", "age": 24 } ] }
+{ "cid": 991, "name": "Leonel Toepperwein", "age": 62, "address": { "number": 8356, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Coffee", "Books" ], "children": [ { "name": "Sean Toepperwein", "age": null }, { "name": "Charline Toepperwein", "age": 49 }, { "name": "Hattie Toepperwein", "age": 22 }, { "name": "Melida Toepperwein", "age": null } ] }
+{ "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] }
+{ "cid": 993, "name": "Shawn Irie", "age": null, "address": null, "interests": [ "Fishing", "Cigars" ], "children": [ { "name": "Tonette Irie", "age": null } ] }
+{ "cid": 994, "name": "Isa Gravelle", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Lashonda Gravelle", "age": null }, { "name": "Carry Gravelle", "age": 58 } ] }
+{ "cid": 995, "name": "Kiersten Basila", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Norman Basila", "age": 17 }, { "name": "Reginia Basila", "age": null }, { "name": "Gilberto Basila", "age": null }, { "name": "Elvira Basila", "age": 49 } ] }
+{ "cid": 996, "name": "Elouise Wider", "age": null, "address": null, "interests": [ "Coffee", "Computers", "Base Jumping" ], "children": [  ] }
+{ "cid": 997, "name": "Yesenia Gao", "age": 38, "address": { "number": 5990, "street": "View St.", "city": "Portland" }, "interests": [ "Computers", "Computers", "Puzzles", "Puzzles" ], "children": [ { "name": "Jared Gao", "age": 11 }, { "name": "Sang Gao", "age": null }, { "name": "Jeanne Gao", "age": 13 }, { "name": "Lavona Gao", "age": 23 } ] }
+{ "cid": 998, "name": "Barry Schmaus", "age": 65, "address": { "number": 4894, "street": "View St.", "city": "Sunnyvale" }, "interests": [  ], "children": [ { "name": "Ma Schmaus", "age": 40 }, { "name": "Lashawn Schmaus", "age": 13 }, { "name": "Georgianne Schmaus", "age": 38 } ] }
+{ "cid": 999, "name": "Bo Chaim", "age": 59, "address": { "number": 8050, "street": "View St.", "city": "Seattle" }, "interests": [  ], "children": [ { "name": "Zandra Chaim", "age": 42 }, { "name": "Theda Chaim", "age": 14 }, { "name": "Sharika Chaim", "age": 22 } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.adm
new file mode 100644
index 0000000..6d89122
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-edit-distance/inverted-index-olist-edit-distance.1.adm
@@ -0,0 +1,8 @@
+{ "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }
+{ "cid": 132, "name": "Cindi Turntine", "age": 64, "address": { "number": 9432, "street": "Park St.", "city": "Portland" }, "interests": [ "Computers", "Wine" ], "children": [ { "name": "Howard Turntine", "age": null } ] }
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": [ "Computers", "Wine", "Databases", "Walking" ], "children": [  ] }
+{ "cid": 389, "name": "Loraine Morfee", "age": 72, "address": { "number": 2945, "street": "Lake St.", "city": "Seattle" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Berry Morfee", "age": 30 } ] }
+{ "cid": 573, "name": "Tyree Ketcher", "age": null, "address": null, "interests": [ "Computers", "Walking" ], "children": [ { "name": "Aleisha Ketcher", "age": null }, { "name": "Vonda Ketcher", "age": null }, { "name": "Cyndy Ketcher", "age": 13 }, { "name": "Chassidy Ketcher", "age": 30 } ] }
+{ "cid": 658, "name": "Truman Leitner", "age": null, "address": null, "interests": [ "Computers", "Bass", "Walking" ], "children": [  ] }
+{ "cid": 716, "name": "Deirdre Bruderer", "age": null, "address": null, "interests": [ "Computers", "Wine" ], "children": [ { "name": "Coralee Bruderer", "age": null }, { "name": "Mina Bruderer", "age": null }, { "name": "Lindsey Bruderer", "age": 35 }, { "name": "Yi Bruderer", "age": null } ] }
+{ "cid": 838, "name": "Karan Aharon", "age": 88, "address": { "number": 8033, "street": "Washington St.", "city": "Portland" }, "interests": [ "Computers", "Movies", "Walking" ], "children": [ { "name": "Matha Aharon", "age": 16 } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.adm
new file mode 100644
index 0000000..71bb9d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-olist-jaccard/inverted-index-olist-jaccard.1.adm
@@ -0,0 +1 @@
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": [ "Computers", "Wine", "Databases", "Walking" ], "children": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.adm
new file mode 100644
index 0000000..fd1b75e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-ulist-jaccard/inverted-index-ulist-jaccard.1.adm
@@ -0,0 +1 @@
+{ "cid": 153, "name": "Randy Hueso", "age": 11, "address": { "number": 1957, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Computers", "Wine", "Databases", "Walking" }}, "children": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.adm
new file mode 100644
index 0000000..8a99b26
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-contains/inverted-index-word-contains.1.adm
@@ -0,0 +1,3 @@
+{ "id": 4, "dblpid": "books/acm/kim95/ChristodoulakisK95", "title": "Multimedia Information Systems  Issues and Approaches.", "authors": "Stavros Christodoulakis Leonidas Koveos", "misc": "2002-01-03 318-337 1995 Modern Database Systems db/books/collections/kim95.html#ChristodoulakisK95" }
+{ "id": 89, "dblpid": "conf/icip/SchonfeldL98", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-11-05 123-127 1998 ICIP (3) db/conf/icip/icip1998-3.html#SchonfeldL98" }
+{ "id": 90, "dblpid": "conf/hicss/SchonfeldL99", "title": "VORTEX  Video Retrieval and Tracking from Compressed Multimedia Databases ¾ Visual Search Engine.", "authors": "Dan Schonfeld Dan Lelescu", "misc": "2002-01-03 1999 HICSS http //computer.org/proceedings/hicss/0001/00013/00013006abs.htm db/conf/hicss/hicss1999-3.html#SchonfeldL99" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/inverted-index-word-jaccard/inverted-index-word-jaccard.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey-conjunctive.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey-conjunctive.adm
copy to asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-conjunctive-open/orders-index-custkey-conjunctive-open.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey-conjunctive.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey-conjunctive.adm
rename to asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-conjunctive/orders-index-custkey-conjunctive.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-open/orders-index-custkey-open.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey.adm
copy to asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey-open/orders-index-custkey-open.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey/orders-index-custkey.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/index/orders-index-custkey.adm
rename to asterix-app/src/test/resources/runtimets/results/index-selection/orders-index-custkey/orders-index-custkey.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/range-search.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/range-search-open/range-search-open.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/index/range-search.adm
copy to asterix-app/src/test/resources/runtimets/results/index-selection/range-search-open/range-search-open.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/range-search.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/range-search/range-search.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/index/range-search.adm
rename to asterix-app/src/test/resources/runtimets/results/index-selection/range-search/range-search.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index/rtree-secondary-index.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/index/rtree-secondary-index.adm
rename to asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index-nullable/rtree-secondary-index-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.adm
new file mode 100644
index 0000000..d22217a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index-open/rtree-secondary-index-open.1.adm
@@ -0,0 +1,2 @@
+{ "id": 12 }
+{ "id": 20 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index/rtree-secondary-index.1.adm b/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index/rtree-secondary-index.1.adm
new file mode 100644
index 0000000..d22217a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/index-selection/rtree-secondary-index/rtree-secondary-index.1.adm
@@ -0,0 +1,2 @@
+{ "id": 12 }
+{ "id": 20 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm
new file mode 100644
index 0000000..8caff33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm
@@ -0,0 +1,13 @@
+{ "a": "Audria Haylett", "b": "Ria Haflett", "ed": 4 }
+{ "a": "Melany Rotan", "b": "Melany Matias", "ed": 4 }
+{ "a": "Neda Dilts", "b": "Beata Diles", "ed": 4 }
+{ "a": "Josette Dries", "b": "Rosette Reen", "ed": 4 }
+{ "a": "Londa Herdt", "b": "Minda Heron", "ed": 4 }
+{ "a": "Moises Plake", "b": "Moises Jago", "ed": 4 }
+{ "a": "Donnette Kreb", "b": "Donnette Lebel", "ed": 4 }
+{ "a": "Frederick Valla", "b": "Frederica Kale", "ed": 4 }
+{ "a": "Petra Kinsel", "b": "Petra Ganes", "ed": 4 }
+{ "a": "Yesenia Doyon", "b": "Yesenia Gao", "ed": 4 }
+{ "a": "Willa Patman", "b": "Mila Barman", "ed": 4 }
+{ "a": "Camelia Yoes", "b": "Camellia Toxey", "ed": 4 }
+{ "a": "Yolonda Korf", "b": "Yolonda Pu", "ed": 4 }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.adm
new file mode 100644
index 0000000..a18f61d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-edit-distance/ngram-edit-distance.1.adm
@@ -0,0 +1,13 @@
+{ "a": "Audria Haylett", "b": "Ria Haflett" }
+{ "a": "Melany Rotan", "b": "Melany Matias" }
+{ "a": "Neda Dilts", "b": "Beata Diles" }
+{ "a": "Josette Dries", "b": "Rosette Reen" }
+{ "a": "Londa Herdt", "b": "Minda Heron" }
+{ "a": "Moises Plake", "b": "Moises Jago" }
+{ "a": "Donnette Kreb", "b": "Donnette Lebel" }
+{ "a": "Frederick Valla", "b": "Frederica Kale" }
+{ "a": "Petra Kinsel", "b": "Petra Ganes" }
+{ "a": "Yesenia Doyon", "b": "Yesenia Gao" }
+{ "a": "Willa Patman", "b": "Mila Barman" }
+{ "a": "Camelia Yoes", "b": "Camellia Toxey" }
+{ "a": "Yolonda Korf", "b": "Yolonda Pu" }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.adm
new file mode 100644
index 0000000..f6c6049
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard-inline/ngram-jaccard-inline.1.adm
@@ -0,0 +1,7 @@
+{ "a": "Transaction Management in Multidatabase Systems.", "b": "Overview of Multidatabase Transaction Management", "jacc": 0.55932206f }
+{ "a": "Transaction Management in Multidatabase Systems.", "b": "Overview of Multidatabase Transaction Management", "jacc": 0.55932206f }
+{ "a": "Active Database Systems.", "b": "Active Database Systems", "jacc": 0.95454544f }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems", "jacc": 0.9583333f }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems", "jacc": 0.9583333f }
+{ "a": "A Shared View of Sharing  The Treaty of Orlando.", "b": "A Shared View of Sharing  The Treaty of Orlando", "jacc": 0.9782609f }
+{ "a": "Specification and Execution of Transactional Workflows.", "b": "Specification and Execution of Transactional Workflows", "jacc": 0.9811321f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.adm
new file mode 100644
index 0000000..b528fe7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ngram-jaccard/ngram-jaccard.1.adm
@@ -0,0 +1,7 @@
+{ "a": "Transaction Management in Multidatabase Systems.", "b": "Overview of Multidatabase Transaction Management" }
+{ "a": "Transaction Management in Multidatabase Systems.", "b": "Overview of Multidatabase Transaction Management" }
+{ "a": "Active Database Systems.", "b": "Active Database Systems" }
+{ "a": "Specification and Execution of Transactional Workflows.", "b": "Specification and Execution of Transactional Workflows" }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems" }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems" }
+{ "a": "A Shared View of Sharing  The Treaty of Orlando.", "b": "A Shared View of Sharing  The Treaty of Orlando" }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.adm
new file mode 100644
index 0000000..7ece8ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance-inline/olist-edit-distance-inline.1.adm
@@ -0,0 +1,157 @@
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diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.adm
new file mode 100644
index 0000000..57ec2a3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-edit-distance/olist-edit-distance.1.adm
@@ -0,0 +1,157 @@
+{ "a": [ "Cooking", "Fishing", "Video Games" ], "b": [ "Books", "Fishing", "Video Games" ] }
+{ "a": [ "Skiing", "Coffee", "Wine" ], "b": [ "Puzzles", "Coffee", "Wine" ] }
+{ "a": [ "Skiing", "Coffee", "Wine" ], "b": [ "Skiing", "Coffee", "Skiing" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Base Jumping", "Cigars", "Movies" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Base Jumping", "Movies", "Movies" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Squash", "Cigars", "Movies" ] }
+{ "a": [ "Wine", "Walking", "Bass" ], "b": [ "Wine", "Walking", "Puzzles" ] }
+{ "a": [ "Cigars", "Skiing", "Video Games", "Books" ], "b": [ "Cigars", "Skiing", "Video Games", "Coffee" ] }
+{ "a": [ "Bass", "Bass", "Books" ], "b": [ "Bass", "Bass", "Base Jumping" ] }
+{ "a": [ "Bass", "Bass", "Books" ], "b": [ "Bass", "Books", "Books" ] }
+{ "a": [ "Bass", "Running", "Databases" ], "b": [ "Bass", "Basketball", "Databases" ] }
+{ "a": [ "Bass", "Running", "Databases" ], "b": [ "Bass", "Running", "Movies" ] }
+{ "a": [ "Bass", "Running", "Databases" ], "b": [ "Bass", "Running", "Walking" ] }
+{ "a": [ "Bass", "Running", "Databases" ], "b": [ "Bass", "Running", "Puzzles" ] }
+{ "a": [ "Cigars", "Walking", "Databases", "Video Games" ], "b": [ "Wine", "Walking", "Databases", "Video Games" ] }
+{ "a": [ "Tennis", "Puzzles", "Video Games" ], "b": [ "Tennis", "Puzzles", "Base Jumping" ] }
+{ "a": [ "Tennis", "Puzzles", "Video Games" ], "b": [ "Tennis", "Puzzles", "Cigars" ] }
+{ "a": [ "Squash", "Movies", "Coffee" ], "b": [ "Squash", "Movies", "Computers" ] }
+{ "a": [ "Base Jumping", "Movies", "Skiing" ], "b": [ "Wine", "Movies", "Skiing" ] }
+{ "a": [ "Base Jumping", "Movies", "Skiing" ], "b": [ "Base Jumping", "Movies", "Movies" ] }
+{ "a": [ "Base Jumping", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Base Jumping", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Music", "Tennis", "Base Jumping" ], "b": [ "Books", "Tennis", "Base Jumping" ] }
+{ "a": [ "Wine", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Wine", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Music", "Base Jumping", "Books" ], "b": [ "Music", "Base Jumping", "Tennis" ] }
+{ "a": [ "Music", "Base Jumping", "Books" ], "b": [ "Music", "Base Jumping", "Coffee", "Books" ] }
+{ "a": [ "Music", "Basketball", "Movies" ], "b": [ "Music", "Basketball", "Cigars" ] }
+{ "a": [ "Databases", "Movies", "Cigars" ], "b": [ "Databases", "Wine", "Cigars" ] }
+{ "a": [ "Databases", "Movies", "Cigars" ], "b": [ "Databases", "Movies", "Tennis" ] }
+{ "a": [ "Databases", "Movies", "Cigars" ], "b": [ "Databases", "Movies", "Tennis" ] }
+{ "a": [ "Movies", "Books", "Bass" ], "b": [ "Movies", "Books", "Walking" ] }
+{ "a": [ "Bass", "Walking", "Movies" ], "b": [ "Bass", "Running", "Movies" ] }
+{ "a": [ "Skiing", "Computers", "Bass", "Cigars" ], "b": [ "Bass", "Computers", "Bass", "Cigars" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Base Jumping", "Movies", "Movies" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Squash", "Cigars", "Movies" ] }
+{ "a": [ "Bass", "Wine", "Coffee" ], "b": [ "Base Jumping", "Wine", "Coffee" ] }
+{ "a": [ "Bass", "Wine", "Coffee" ], "b": [ "Bass", "Squash", "Coffee" ] }
+{ "a": [ "Music", "Fishing", "Music" ], "b": [ "Music", "Fishing", "Computers" ] }
+{ "a": [ "Puzzles", "Cooking", "Squash" ], "b": [ "Puzzles", "Puzzles", "Squash" ] }
+{ "a": [ "Puzzles", "Cooking", "Squash" ], "b": [ "Puzzles", "Cooking", "Bass" ] }
+{ "a": [ "Running", "Computers", "Basketball" ], "b": [ "Running", "Basketball", "Computers", "Basketball" ] }
+{ "a": [ "Coffee", "Coffee", "Cigars" ], "b": [ "Coffee", "Walking", "Cigars" ] }
+{ "a": [ "Coffee", "Coffee", "Cigars" ], "b": [ "Base Jumping", "Coffee", "Cigars" ] }
+{ "a": [ "Basketball", "Movies", "Cooking" ], "b": [ "Basketball", "Cigars", "Cooking" ] }
+{ "a": [ "Cooking", "Music", "Books" ], "b": [ "Cooking", "Music", "Cigars" ] }
+{ "a": [ "Cooking", "Music", "Books" ], "b": [ "Cooking", "Cigars", "Books" ] }
+{ "a": [ "Wine", "Databases", "Basketball" ], "b": [ "Wine", "Puzzles", "Basketball" ] }
+{ "a": [ "Wine", "Puzzles", "Basketball" ], "b": [ "Wine", "Puzzles", "Tennis" ] }
+{ "a": [ "Base Jumping", "Base Jumping", "Walking", "Computers" ], "b": [ "Base Jumping", "Fishing", "Walking", "Computers" ] }
+{ "a": [ "Base Jumping", "Base Jumping", "Walking", "Computers" ], "b": [ "Base Jumping", "Base Jumping", "Books", "Computers" ] }
+{ "a": [ "Computers", "Squash", "Coffee" ], "b": [ "Bass", "Squash", "Coffee" ] }
+{ "a": [ "Puzzles", "Puzzles", "Skiing" ], "b": [ "Puzzles", "Puzzles", "Squash" ] }
+{ "a": [ "Tennis", "Fishing", "Movies" ], "b": [ "Databases", "Fishing", "Movies" ] }
+{ "a": [ "Tennis", "Fishing", "Movies" ], "b": [ "Tennis", "Movies", "Movies" ] }
+{ "a": [ "Bass", "Coffee", "Skiing" ], "b": [ "Skiing", "Coffee", "Skiing" ] }
+{ "a": [ "Running", "Books", "Running" ], "b": [ "Running", "Wine", "Running" ] }
+{ "a": [ "Computers", "Tennis", "Books" ], "b": [ "Computers", "Tennis", "Puzzles", "Books" ] }
+{ "a": [ "Puzzles", "Coffee", "Wine" ], "b": [ "Puzzles", "Computers", "Wine" ] }
+{ "a": [ "Squash", "Bass", "Cooking" ], "b": [ "Base Jumping", "Bass", "Cooking" ] }
+{ "a": [ "Databases", "Fishing", "Movies" ], "b": [ "Databases", "Fishing", "Skiing" ] }
+{ "a": [ "Databases", "Fishing", "Movies" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Coffee", "Computers", "Fishing" ], "b": [ "Coffee", "Movies", "Fishing" ] }
+{ "a": [ "Coffee", "Computers", "Fishing" ], "b": [ "Coffee", "Computers", "Base Jumping" ] }
+{ "a": [ "Base Jumping", "Wine", "Coffee" ], "b": [ "Base Jumping", "Wine", "Cigars" ] }
+{ "a": [ "Tennis", "Movies", "Movies" ], "b": [ "Base Jumping", "Movies", "Movies" ] }
+{ "a": [ "Tennis", "Movies", "Movies" ], "b": [ "Tennis", "Movies", "Bass" ] }
+{ "a": [ "Wine", "Puzzles", "Tennis" ], "b": [ "Wine", "Skiing", "Puzzles", "Tennis" ] }
+{ "a": [ "Books", "Tennis", "Base Jumping" ], "b": [ "Books", "Tennis", "Cooking" ] }
+{ "a": [ "Basketball", "Bass", "Cigars" ], "b": [ "Wine", "Bass", "Cigars" ] }
+{ "a": [ "Bass", "Movies", "Computers" ], "b": [ "Bass", "Movies", "Music" ] }
+{ "a": [ "Bass", "Movies", "Computers" ], "b": [ "Squash", "Movies", "Computers" ] }
+{ "a": [ "Walking", "Bass", "Fishing", "Movies" ], "b": [ "Walking", "Bass", "Fishing", "Video Games" ] }
+{ "a": [ "Squash", "Squash", "Music" ], "b": [ "Squash", "Squash", "Video Games" ] }
+{ "a": [ "Squash", "Squash", "Music" ], "b": [ "Video Games", "Squash", "Music" ] }
+{ "a": [ "Bass", "Running", "Movies" ], "b": [ "Bass", "Running", "Walking" ] }
+{ "a": [ "Bass", "Running", "Movies" ], "b": [ "Bass", "Running", "Puzzles" ] }
+{ "a": [ "Coffee", "Tennis", "Bass" ], "b": [ "Coffee", "Tennis", "Bass", "Running" ] }
+{ "a": [ "Bass", "Running", "Walking" ], "b": [ "Bass", "Running", "Puzzles" ] }
+{ "a": [ "Databases", "Wine", "Cigars" ], "b": [ "Base Jumping", "Wine", "Cigars" ] }
+{ "a": [ "Computers", "Skiing", "Music" ], "b": [ "Bass", "Skiing", "Music" ] }
+{ "a": [ "Tennis", "Cigars", "Books" ], "b": [ "Tennis", "Cigars", "Music" ] }
+{ "a": [ "Tennis", "Cigars", "Books" ], "b": [ "Cooking", "Cigars", "Books" ] }
+{ "a": [ "Bass", "Books", "Books" ], "b": [ "Books", "Bass", "Books", "Books" ] }
+{ "a": [ "Music", "Skiing", "Running" ], "b": [ "Basketball", "Skiing", "Running" ] }
+{ "a": [ "Music", "Skiing", "Running" ], "b": [ "Movies", "Skiing", "Running" ] }
+{ "a": [ "Basketball", "Skiing", "Wine", "Fishing" ], "b": [ "Wine", "Skiing", "Wine", "Fishing" ] }
+{ "a": [ "Skiing", "Music", "Movies" ], "b": [ "Skiing", "Squash", "Movies" ] }
+{ "a": [ "Databases", "Music", "Wine" ], "b": [ "Databases", "Music", "Cooking" ] }
+{ "a": [ "Databases", "Music", "Wine" ], "b": [ "Databases", "Music", "Video Games" ] }
+{ "a": [ "Databases", "Music", "Wine" ], "b": [ "Databases", "Music", "Puzzles" ] }
+{ "a": [ "Databases", "Music", "Wine" ], "b": [ "Databases", "Cooking", "Wine" ] }
+{ "a": [ "Databases", "Music", "Wine" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Computers", "Music", "Cigars" ], "b": [ "Cooking", "Music", "Cigars" ] }
+{ "a": [ "Music", "Fishing", "Databases", "Wine" ], "b": [ "Fishing", "Databases", "Wine" ] }
+{ "a": [ "Running", "Basketball", "Tennis" ], "b": [ "Running", "Basketball", "Walking" ] }
+{ "a": [ "Running", "Basketball", "Tennis" ], "b": [ "Running", "Basketball", "Cooking" ] }
+{ "a": [ "Base Jumping", "Wine", "Cigars" ], "b": [ "Base Jumping", "Coffee", "Cigars" ] }
+{ "a": [ "Tennis", "Puzzles", "Base Jumping" ], "b": [ "Tennis", "Puzzles", "Cigars" ] }
+{ "a": [ "Tennis", "Puzzles", "Base Jumping" ], "b": [ "Running", "Puzzles", "Base Jumping" ] }
+{ "a": [ "Running", "Fishing", "Coffee" ], "b": [ "Running", "Fishing", "Coffee", "Basketball" ] }
+{ "a": [ "Squash", "Music", "Bass", "Puzzles" ], "b": [ "Squash", "Cooking", "Bass", "Puzzles" ] }
+{ "a": [ "Fishing", "Databases", "Wine" ], "b": [ "Movies", "Databases", "Wine" ] }
+{ "a": [ "Walking", "Squash", "Wine" ], "b": [ "Walking", "Cigars", "Squash", "Wine" ] }
+{ "a": [ "Coffee", "Bass", "Running" ], "b": [ "Coffee", "Bass", "Tennis" ] }
+{ "a": [ "Coffee", "Bass", "Running" ], "b": [ "Coffee", "Tennis", "Bass", "Running" ] }
+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Fishing" ] }
+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Squash" ] }
+{ "a": [ "Squash", "Base Jumping", "Tennis" ], "b": [ "Music", "Base Jumping", "Tennis" ] }
+{ "a": [ "Squash", "Base Jumping", "Tennis" ], "b": [ "Video Games", "Base Jumping", "Tennis" ] }
+{ "a": [ "Fishing", "Skiing", "Skiing" ], "b": [ "Squash", "Skiing", "Skiing" ] }
+{ "a": [ "Books", "Tennis", "Cooking" ], "b": [ "Books", "Databases", "Cooking" ] }
+{ "a": [ "Coffee", "Bass", "Tennis" ], "b": [ "Coffee", "Books", "Tennis" ] }
+{ "a": [ "Databases", "Cigars", "Music", "Video Games" ], "b": [ "Databases", "Music", "Video Games" ] }
+{ "a": [ "Books", "Fishing", "Video Games" ], "b": [ "Books", "Cooking", "Video Games" ] }
+{ "a": [ "Wine", "Running", "Computers" ], "b": [ "Wine", "Cooking", "Running", "Computers" ] }
+{ "a": [ "Coffee", "Books", "Tennis" ], "b": [ "Music", "Books", "Tennis" ] }
+{ "a": [ "Tennis", "Music", "Running", "Music" ], "b": [ "Tennis", "Music", "Running", "Cooking" ] }
+{ "a": [ "Basketball", "Fishing", "Walking" ], "b": [ "Basketball", "Fishing", "Puzzles" ] }
+{ "a": [ "Databases", "Music", "Cooking" ], "b": [ "Databases", "Music", "Video Games" ] }
+{ "a": [ "Databases", "Music", "Cooking" ], "b": [ "Databases", "Music", "Puzzles" ] }
+{ "a": [ "Tennis", "Walking", "Databases" ], "b": [ "Tennis", "Walking", "Basketball" ] }
+{ "a": [ "Squash", "Skiing", "Skiing" ], "b": [ "Squash", "Basketball", "Skiing" ] }
+{ "a": [ "Movies", "Skiing", "Cooking" ], "b": [ "Movies", "Skiing", "Running" ] }
+{ "a": [ "Bass", "Movies", "Music" ], "b": [ "Cooking", "Movies", "Music" ] }
+{ "a": [ "Bass", "Movies", "Music" ], "b": [ "Bass", "Skiing", "Music" ] }
+{ "a": [ "Wine", "Skiing", "Wine", "Fishing" ], "b": [ "Wine", "Wine", "Fishing" ] }
+{ "a": [ "Databases", "Music", "Video Games" ], "b": [ "Databases", "Music", "Puzzles" ] }
+{ "a": [ "Basketball", "Skiing", "Running" ], "b": [ "Movies", "Skiing", "Running" ] }
+{ "a": [ "Music", "Base Jumping", "Tennis" ], "b": [ "Music", "Books", "Tennis" ] }
+{ "a": [ "Music", "Base Jumping", "Tennis" ], "b": [ "Video Games", "Base Jumping", "Tennis" ] }
+{ "a": [ "Databases", "Movies", "Tennis" ], "b": [ "Databases", "Movies", "Tennis" ] }
+{ "a": [ "Tennis", "Databases", "Bass" ], "b": [ "Tennis", "Movies", "Bass" ] }
+{ "a": [ "Tennis", "Databases", "Bass" ], "b": [ "Base Jumping", "Databases", "Bass" ] }
+{ "a": [ "Skiing", "Computers", "Base Jumping" ], "b": [ "Coffee", "Computers", "Base Jumping" ] }
+{ "a": [ "Computers", "Bass", "Walking" ], "b": [ "Computers", "Movies", "Walking" ] }
+{ "a": [ "Tennis", "Cooking", "Computers" ], "b": [ "Tennis", "Wine", "Computers" ] }
+{ "a": [ "Wine", "Music", "Fishing" ], "b": [ "Wine", "Wine", "Fishing" ] }
+{ "a": [ "Databases", "Music", "Puzzles" ], "b": [ "Movies", "Music", "Puzzles" ] }
+{ "a": [ "Base Jumping", "Tennis", "Video Games" ], "b": [ "Running", "Tennis", "Video Games" ] }
+{ "a": [ "Base Jumping", "Tennis", "Video Games" ], "b": [ "Base Jumping", "Tennis", "Wine" ] }
+{ "a": [ "Movies", "Coffee", "Walking" ], "b": [ "Movies", "Books", "Walking" ] }
+{ "a": [ "Basketball", "Squash", "Base Jumping" ], "b": [ "Basketball", "Squash", "Movies", "Base Jumping" ] }
+{ "a": [ "Wine", "Fishing", "Base Jumping" ], "b": [ "Wine", "Basketball", "Base Jumping" ] }
+{ "a": [ "Basketball", "Running", "Wine" ], "b": [ "Base Jumping", "Running", "Wine" ] }
+{ "a": [ "Running", "Puzzles", "Base Jumping" ], "b": [ "Puzzles", "Running", "Puzzles", "Base Jumping" ] }
+{ "a": [ "Basketball", "Cigars", "Cooking" ], "b": [ "Skiing", "Cigars", "Cooking" ] }
+{ "a": [ "Basketball", "Cigars", "Cooking" ], "b": [ "Basketball", "Cigars", "Cooking", "Running" ] }
+{ "a": [ "Running", "Basketball", "Walking" ], "b": [ "Running", "Basketball", "Cooking" ] }
+{ "a": [ "Tennis", "Walking", "Basketball" ], "b": [ "Skiing", "Walking", "Basketball" ] }
+{ "a": [ "Coffee", "Movies", "Fishing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Coffee", "Movies", "Fishing" ], "b": [ "Coffee", "Movies", "Squash" ] }
+{ "a": [ "Databases", "Cooking", "Wine" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Squash" ] }
+{ "a": [ "Databases", "Fishing", "Skiing" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Base Jumping", "Running", "Wine" ], "b": [ "Base Jumping", "Tennis", "Wine" ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.adm
new file mode 100644
index 0000000..547a0e7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard-inline/olist-jaccard-inline.1.adm
@@ -0,0 +1,115 @@
+{ "a": [ "Bass", "Wine" ], "b": [ "Bass", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ], "jacc": 1.0f }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ], "jacc": 1.0f }
+{ "a": [ "Music", "Databases" ], "b": [ "Music", "Databases" ], "jacc": 1.0f }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ], "jacc": 1.0f }
+{ "a": [ "Wine", "Walking" ], "b": [ "Wine", "Walking" ], "jacc": 1.0f }
+{ "a": [ "Wine", "Walking" ], "b": [ "Walking", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Base Jumping", "Cigars", "Movies" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Walking" ], "b": [ "Skiing", "Walking" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Music" ], "b": [ "Music", "Base Jumping" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Music" ], "b": [ "Music", "Base Jumping" ], "jacc": 1.0f }
+{ "a": [ "Fishing", "Video Games" ], "b": [ "Video Games", "Fishing" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Skiing" ], "b": [ "Skiing", "Base Jumping" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Skiing" ], "b": [ "Base Jumping", "Skiing" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ], "jacc": 1.0f }
+{ "a": [ "Fishing", "Running", "Cigars" ], "b": [ "Fishing", "Cigars", "Running" ], "jacc": 1.0f }
+{ "a": [ "Cigars", "Skiing" ], "b": [ "Skiing", "Cigars" ], "jacc": 1.0f }
+{ "a": [ "Movies", "Walking" ], "b": [ "Movies", "Walking" ], "jacc": 1.0f }
+{ "a": [ "Music", "Coffee" ], "b": [ "Coffee", "Music" ], "jacc": 1.0f }
+{ "a": [ "Running", "Coffee", "Fishing" ], "b": [ "Running", "Fishing", "Coffee" ], "jacc": 1.0f }
+{ "a": [ "Squash", "Movies", "Coffee" ], "b": [ "Coffee", "Movies", "Squash" ], "jacc": 1.0f }
+{ "a": [ "Music", "Tennis", "Base Jumping" ], "b": [ "Music", "Base Jumping", "Tennis" ], "jacc": 1.0f }
+{ "a": [ "Music", "Base Jumping", "Books" ], "b": [ "Books", "Base Jumping", "Music" ], "jacc": 1.0f }
+{ "a": [ "Bass", "Books" ], "b": [ "Bass", "Books" ], "jacc": 1.0f }
+{ "a": [ "Bass", "Books" ], "b": [ "Books", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Puzzles", "Squash" ], "b": [ "Squash", "Puzzles" ], "jacc": 1.0f }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ], "jacc": 1.0f }
+{ "a": [ "Computers", "Wine" ], "b": [ "Computers", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ], "jacc": 1.0f }
+{ "a": [ "Walking", "Cooking" ], "b": [ "Walking", "Cooking" ], "jacc": 1.0f }
+{ "a": [ "Walking", "Cooking" ], "b": [ "Walking", "Cooking" ], "jacc": 1.0f }
+{ "a": [ "Databases", "Databases" ], "b": [ "Databases", "Databases" ], "jacc": 1.0f }
+{ "a": [ "Databases", "Databases" ], "b": [ "Databases", "Databases" ], "jacc": 1.0f }
+{ "a": [ "Squash", "Databases" ], "b": [ "Squash", "Databases" ], "jacc": 1.0f }
+{ "a": [ "Wine", "Computers" ], "b": [ "Computers", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Wine", "Computers" ], "b": [ "Wine", "Computers" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ], "jacc": 1.0f }
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+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ], "jacc": 1.0f }
+{ "a": [ "Cigars", "Cigars" ], "b": [ "Cigars", "Cigars" ], "jacc": 1.0f }
+{ "a": [ "Bass", "Walking" ], "b": [ "Walking", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Wine", "Base Jumping", "Running" ], "b": [ "Base Jumping", "Running", "Wine" ], "jacc": 1.0f }
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+{ "a": [ "Wine", "Puzzles" ], "b": [ "Puzzles", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Squash", "Cigars" ], "b": [ "Squash", "Cigars" ], "jacc": 1.0f }
+{ "a": [ "Cooking", "Bass" ], "b": [ "Cooking", "Bass" ], "jacc": 1.0f }
+{ "a": [ "Databases", "Movies", "Tennis" ], "b": [ "Databases", "Movies", "Tennis" ], "jacc": 1.0f }
+{ "a": [ "Fishing", "Computers" ], "b": [ "Computers", "Fishing" ], "jacc": 1.0f }
+{ "a": [ "Fishing", "Movies" ], "b": [ "Fishing", "Movies" ], "jacc": 1.0f }
+{ "a": [ "Base Jumping", "Tennis", "Video Games" ], "b": [ "Video Games", "Base Jumping", "Tennis" ], "jacc": 1.0f }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ], "jacc": 1.0f }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ], "jacc": 1.0f }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ], "jacc": 1.0f }
+{ "a": [ "Fishing", "Wine", "Databases" ], "b": [ "Databases", "Fishing", "Wine" ], "jacc": 1.0f }
+{ "a": [ "Books", "Movies" ], "b": [ "Movies", "Books" ], "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.adm
new file mode 100644
index 0000000..f70a077
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/olist-jaccard/olist-jaccard.1.adm
@@ -0,0 +1,115 @@
+{ "a": [ "Bass", "Wine" ], "b": [ "Bass", "Wine" ] }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Music", "Databases" ], "b": [ "Music", "Databases" ] }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Wine", "Walking" ], "b": [ "Wine", "Walking" ] }
+{ "a": [ "Wine", "Walking" ], "b": [ "Walking", "Wine" ] }
+{ "a": [ "Base Jumping", "Cigars", "Movies" ], "b": [ "Base Jumping", "Cigars", "Movies" ] }
+{ "a": [ "Skiing", "Walking" ], "b": [ "Skiing", "Walking" ] }
+{ "a": [ "Base Jumping", "Music" ], "b": [ "Music", "Base Jumping" ] }
+{ "a": [ "Base Jumping", "Music" ], "b": [ "Music", "Base Jumping" ] }
+{ "a": [ "Fishing", "Video Games" ], "b": [ "Video Games", "Fishing" ] }
+{ "a": [ "Base Jumping", "Skiing" ], "b": [ "Skiing", "Base Jumping" ] }
+{ "a": [ "Base Jumping", "Skiing" ], "b": [ "Base Jumping", "Skiing" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ] }
+{ "a": [ "Fishing", "Running", "Cigars" ], "b": [ "Fishing", "Cigars", "Running" ] }
+{ "a": [ "Cigars", "Skiing" ], "b": [ "Skiing", "Cigars" ] }
+{ "a": [ "Movies", "Walking" ], "b": [ "Movies", "Walking" ] }
+{ "a": [ "Music", "Coffee" ], "b": [ "Coffee", "Music" ] }
+{ "a": [ "Running", "Coffee", "Fishing" ], "b": [ "Running", "Fishing", "Coffee" ] }
+{ "a": [ "Squash", "Movies", "Coffee" ], "b": [ "Coffee", "Movies", "Squash" ] }
+{ "a": [ "Music", "Tennis", "Base Jumping" ], "b": [ "Music", "Base Jumping", "Tennis" ] }
+{ "a": [ "Music", "Base Jumping", "Books" ], "b": [ "Books", "Base Jumping", "Music" ] }
+{ "a": [ "Bass", "Books" ], "b": [ "Bass", "Books" ] }
+{ "a": [ "Bass", "Books" ], "b": [ "Books", "Bass" ] }
+{ "a": [ "Puzzles", "Squash" ], "b": [ "Squash", "Puzzles" ] }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ] }
+{ "a": [ "Computers", "Wine" ], "b": [ "Computers", "Wine" ] }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ] }
+{ "a": [ "Walking", "Cooking" ], "b": [ "Walking", "Cooking" ] }
+{ "a": [ "Walking", "Cooking" ], "b": [ "Walking", "Cooking" ] }
+{ "a": [ "Databases", "Databases" ], "b": [ "Databases", "Databases" ] }
+{ "a": [ "Databases", "Databases" ], "b": [ "Databases", "Databases" ] }
+{ "a": [ "Squash", "Databases" ], "b": [ "Squash", "Databases" ] }
+{ "a": [ "Wine", "Computers" ], "b": [ "Computers", "Wine" ] }
+{ "a": [ "Wine", "Computers" ], "b": [ "Wine", "Computers" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Skiing", "Bass" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ] }
+{ "a": [ "Movies", "Books" ], "b": [ "Movies", "Books" ] }
+{ "a": [ "Movies", "Books" ], "b": [ "Books", "Movies" ] }
+{ "a": [ "Movies", "Books" ], "b": [ "Movies", "Books" ] }
+{ "a": [ "Wine", "Squash" ], "b": [ "Wine", "Squash" ] }
+{ "a": [ "Coffee", "Tennis" ], "b": [ "Tennis", "Coffee" ] }
+{ "a": [ "Coffee", "Tennis" ], "b": [ "Tennis", "Coffee" ] }
+{ "a": [ "Skiing", "Books" ], "b": [ "Books", "Skiing" ] }
+{ "a": [ "Databases", "Music" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Databases", "Music" ], "b": [ "Music", "Databases" ] }
+{ "a": [ "Databases", "Music" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Video Games", "Cigars" ], "b": [ "Cigars", "Video Games" ] }
+{ "a": [ "Video Games", "Cigars" ], "b": [ "Video Games", "Cigars" ] }
+{ "a": [ "Databases", "Skiing" ], "b": [ "Databases", "Skiing" ] }
+{ "a": [ "Running", "Fishing" ], "b": [ "Running", "Fishing" ] }
+{ "a": [ "Databases", "Music" ], "b": [ "Music", "Databases" ] }
+{ "a": [ "Databases", "Music" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Base Jumping", "Running" ], "b": [ "Running", "Base Jumping" ] }
+{ "a": [ "Base Jumping", "Running" ], "b": [ "Base Jumping", "Running" ] }
+{ "a": [ "Books", "Base Jumping" ], "b": [ "Books", "Base Jumping" ] }
+{ "a": [ "Books", "Base Jumping" ], "b": [ "Books", "Base Jumping" ] }
+{ "a": [ "Cooking", "Running" ], "b": [ "Cooking", "Running" ] }
+{ "a": [ "Video Games", "Databases" ], "b": [ "Databases", "Video Games" ] }
+{ "a": [ "Video Games", "Databases" ], "b": [ "Databases", "Video Games" ] }
+{ "a": [ "Cigars", "Video Games" ], "b": [ "Video Games", "Cigars" ] }
+{ "a": [ "Running", "Base Jumping" ], "b": [ "Base Jumping", "Running" ] }
+{ "a": [ "Coffee", "Databases" ], "b": [ "Databases", "Coffee" ] }
+{ "a": [ "Movies", "Books" ], "b": [ "Books", "Movies" ] }
+{ "a": [ "Movies", "Books" ], "b": [ "Movies", "Books" ] }
+{ "a": [ "Databases", "Video Games" ], "b": [ "Databases", "Video Games" ] }
+{ "a": [ "Music", "Base Jumping" ], "b": [ "Music", "Base Jumping" ] }
+{ "a": [ "Bass", "Squash" ], "b": [ "Bass", "Squash" ] }
+{ "a": [ "Computers", "Tennis" ], "b": [ "Tennis", "Computers" ] }
+{ "a": [ "Tennis", "Coffee" ], "b": [ "Tennis", "Coffee" ] }
+{ "a": [ "Puzzles", "Books" ], "b": [ "Puzzles", "Books" ] }
+{ "a": [ "Puzzles", "Books" ], "b": [ "Puzzles", "Books" ] }
+{ "a": [ "Skiing", "Wine" ], "b": [ "Wine", "Skiing" ] }
+{ "a": [ "Squash", "Tennis" ], "b": [ "Squash", "Tennis" ] }
+{ "a": [ "Walking", "Cooking" ], "b": [ "Walking", "Cooking" ] }
+{ "a": [ "Coffee", "Tennis", "Bass" ], "b": [ "Coffee", "Bass", "Tennis" ] }
+{ "a": [ "Music", "Squash" ], "b": [ "Music", "Squash" ] }
+{ "a": [ "Computers", "Fishing" ], "b": [ "Fishing", "Computers" ] }
+{ "a": [ "Computers", "Fishing" ], "b": [ "Computers", "Fishing" ] }
+{ "a": [ "Wine", "Walking" ], "b": [ "Walking", "Wine" ] }
+{ "a": [ "Skiing", "Base Jumping" ], "b": [ "Base Jumping", "Skiing" ] }
+{ "a": [ "Bass", "Books" ], "b": [ "Books", "Bass" ] }
+{ "a": [ "Fishing", "Music" ], "b": [ "Fishing", "Music" ] }
+{ "a": [ "Books", "Tennis" ], "b": [ "Books", "Tennis" ] }
+{ "a": [ "Books", "Tennis" ], "b": [ "Tennis", "Books" ] }
+{ "a": [ "Books", "Tennis" ], "b": [ "Tennis", "Books" ] }
+{ "a": [ "Fishing", "Databases" ], "b": [ "Fishing", "Databases" ] }
+{ "a": [ "Walking", "Computers" ], "b": [ "Computers", "Walking" ] }
+{ "a": [ "Books", "Base Jumping" ], "b": [ "Books", "Base Jumping" ] }
+{ "a": [ "Movies", "Cooking", "Skiing" ], "b": [ "Movies", "Skiing", "Cooking" ] }
+{ "a": [ "Puzzles", "Books" ], "b": [ "Puzzles", "Books" ] }
+{ "a": [ "Wine", "Databases" ], "b": [ "Databases", "Wine" ] }
+{ "a": [ "Fishing", "Databases", "Wine" ], "b": [ "Fishing", "Wine", "Databases" ] }
+{ "a": [ "Fishing", "Databases", "Wine" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Coffee", "Movies", "Skiing" ], "b": [ "Coffee", "Movies", "Skiing" ] }
+{ "a": [ "Cigars", "Cigars" ], "b": [ "Cigars", "Cigars" ] }
+{ "a": [ "Bass", "Walking" ], "b": [ "Walking", "Bass" ] }
+{ "a": [ "Wine", "Base Jumping", "Running" ], "b": [ "Base Jumping", "Running", "Wine" ] }
+{ "a": [ "Databases", "Databases" ], "b": [ "Databases", "Databases" ] }
+{ "a": [ "Movies", "Running" ], "b": [ "Movies", "Running" ] }
+{ "a": [ "Wine", "Puzzles" ], "b": [ "Puzzles", "Wine" ] }
+{ "a": [ "Squash", "Cigars" ], "b": [ "Squash", "Cigars" ] }
+{ "a": [ "Cooking", "Bass" ], "b": [ "Cooking", "Bass" ] }
+{ "a": [ "Databases", "Movies", "Tennis" ], "b": [ "Databases", "Movies", "Tennis" ] }
+{ "a": [ "Fishing", "Computers" ], "b": [ "Computers", "Fishing" ] }
+{ "a": [ "Fishing", "Movies" ], "b": [ "Fishing", "Movies" ] }
+{ "a": [ "Base Jumping", "Tennis", "Video Games" ], "b": [ "Video Games", "Base Jumping", "Tennis" ] }
+{ "a": [ "Computers", "Wine" ], "b": [ "Wine", "Computers" ] }
+{ "a": [ "Skiing", "Bass" ], "b": [ "Bass", "Skiing" ] }
+{ "a": [ "Music", "Databases" ], "b": [ "Databases", "Music" ] }
+{ "a": [ "Fishing", "Wine", "Databases" ], "b": [ "Databases", "Fishing", "Wine" ] }
+{ "a": [ "Books", "Movies" ], "b": [ "Movies", "Books" ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.adm
new file mode 100644
index 0000000..2321799
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard-inline/ulist-jaccard-inline.1.adm
@@ -0,0 +1,115 @@
+{ "a": {{ "Bass", "Wine" }}, "b": {{ "Bass", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Music", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Wine", "Walking" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Walking", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Cigars", "Movies" }}, "b": {{ "Base Jumping", "Cigars", "Movies" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Walking" }}, "b": {{ "Skiing", "Walking" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Music" }}, "b": {{ "Music", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Music" }}, "b": {{ "Music", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Video Games" }}, "b": {{ "Video Games", "Fishing" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Skiing" }}, "b": {{ "Skiing", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Skiing" }}, "b": {{ "Base Jumping", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Running", "Cigars" }}, "b": {{ "Fishing", "Cigars", "Running" }}, "jacc": 1.0f }
+{ "a": {{ "Cigars", "Skiing" }}, "b": {{ "Skiing", "Cigars" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Walking" }}, "b": {{ "Movies", "Walking" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Coffee" }}, "b": {{ "Coffee", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Running", "Coffee", "Fishing" }}, "b": {{ "Running", "Fishing", "Coffee" }}, "jacc": 1.0f }
+{ "a": {{ "Squash", "Movies", "Coffee" }}, "b": {{ "Coffee", "Movies", "Squash" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Tennis", "Base Jumping" }}, "b": {{ "Music", "Base Jumping", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Base Jumping", "Books" }}, "b": {{ "Books", "Base Jumping", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Bass", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Books", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Puzzles", "Squash" }}, "b": {{ "Squash", "Puzzles" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Computers", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }}, "jacc": 1.0f }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Squash", "Databases" }}, "b": {{ "Squash", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Computers" }}, "b": {{ "Computers", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Computers" }}, "b": {{ "Wine", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Books", "Movies" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Squash" }}, "b": {{ "Wine", "Squash" }}, "jacc": 1.0f }
+{ "a": {{ "Coffee", "Tennis" }}, "b": {{ "Tennis", "Coffee" }}, "jacc": 1.0f }
+{ "a": {{ "Coffee", "Tennis" }}, "b": {{ "Tennis", "Coffee" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Books" }}, "b": {{ "Books", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Music", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Video Games", "Cigars" }}, "b": {{ "Cigars", "Video Games" }}, "jacc": 1.0f }
+{ "a": {{ "Video Games", "Cigars" }}, "b": {{ "Video Games", "Cigars" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Skiing" }}, "b": {{ "Databases", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Running", "Fishing" }}, "b": {{ "Running", "Fishing" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Music", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Running" }}, "b": {{ "Running", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Running" }}, "b": {{ "Base Jumping", "Running" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Cooking", "Running" }}, "b": {{ "Cooking", "Running" }}, "jacc": 1.0f }
+{ "a": {{ "Video Games", "Databases" }}, "b": {{ "Databases", "Video Games" }}, "jacc": 1.0f }
+{ "a": {{ "Video Games", "Databases" }}, "b": {{ "Databases", "Video Games" }}, "jacc": 1.0f }
+{ "a": {{ "Cigars", "Video Games" }}, "b": {{ "Video Games", "Cigars" }}, "jacc": 1.0f }
+{ "a": {{ "Running", "Base Jumping" }}, "b": {{ "Base Jumping", "Running" }}, "jacc": 1.0f }
+{ "a": {{ "Coffee", "Databases" }}, "b": {{ "Databases", "Coffee" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Books", "Movies" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Video Games" }}, "b": {{ "Databases", "Video Games" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Base Jumping" }}, "b": {{ "Music", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Bass", "Squash" }}, "b": {{ "Bass", "Squash" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Tennis" }}, "b": {{ "Tennis", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Tennis", "Coffee" }}, "b": {{ "Tennis", "Coffee" }}, "jacc": 1.0f }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Wine" }}, "b": {{ "Wine", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Squash", "Tennis" }}, "b": {{ "Squash", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }}, "jacc": 1.0f }
+{ "a": {{ "Coffee", "Tennis", "Bass" }}, "b": {{ "Coffee", "Bass", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Squash" }}, "b": {{ "Music", "Squash" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Fishing" }}, "b": {{ "Fishing", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Fishing" }}, "b": {{ "Computers", "Fishing" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Walking", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Base Jumping" }}, "b": {{ "Base Jumping", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Books", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Music" }}, "b": {{ "Fishing", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Books", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Tennis", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Tennis", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Databases" }}, "b": {{ "Fishing", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Walking", "Computers" }}, "b": {{ "Computers", "Walking" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Cooking", "Skiing" }}, "b": {{ "Movies", "Skiing", "Cooking" }}, "jacc": 1.0f }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Databases" }}, "b": {{ "Databases", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Databases", "Wine" }}, "b": {{ "Fishing", "Wine", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Databases", "Wine" }}, "b": {{ "Databases", "Fishing", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Coffee", "Movies", "Skiing" }}, "b": {{ "Coffee", "Movies", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Cigars", "Cigars" }}, "b": {{ "Cigars", "Cigars" }}, "jacc": 1.0f }
+{ "a": {{ "Bass", "Walking" }}, "b": {{ "Walking", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Base Jumping", "Running" }}, "b": {{ "Base Jumping", "Running", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }}, "jacc": 1.0f }
+{ "a": {{ "Movies", "Running" }}, "b": {{ "Movies", "Running" }}, "jacc": 1.0f }
+{ "a": {{ "Wine", "Puzzles" }}, "b": {{ "Puzzles", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Squash", "Cigars" }}, "b": {{ "Squash", "Cigars" }}, "jacc": 1.0f }
+{ "a": {{ "Cooking", "Bass" }}, "b": {{ "Cooking", "Bass" }}, "jacc": 1.0f }
+{ "a": {{ "Databases", "Movies", "Tennis" }}, "b": {{ "Databases", "Movies", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Computers" }}, "b": {{ "Computers", "Fishing" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Movies" }}, "b": {{ "Fishing", "Movies" }}, "jacc": 1.0f }
+{ "a": {{ "Base Jumping", "Tennis", "Video Games" }}, "b": {{ "Video Games", "Base Jumping", "Tennis" }}, "jacc": 1.0f }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }}, "jacc": 1.0f }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }}, "jacc": 1.0f }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }}, "jacc": 1.0f }
+{ "a": {{ "Fishing", "Wine", "Databases" }}, "b": {{ "Databases", "Fishing", "Wine" }}, "jacc": 1.0f }
+{ "a": {{ "Books", "Movies" }}, "b": {{ "Movies", "Books" }}, "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.adm
new file mode 100644
index 0000000..c7cc9fc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/ulist-jaccard/ulist-jaccard.1.adm
@@ -0,0 +1,115 @@
+{ "a": {{ "Bass", "Wine" }}, "b": {{ "Bass", "Wine" }} }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Music", "Databases" }} }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Wine", "Walking" }} }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Walking", "Wine" }} }
+{ "a": {{ "Base Jumping", "Cigars", "Movies" }}, "b": {{ "Base Jumping", "Cigars", "Movies" }} }
+{ "a": {{ "Skiing", "Walking" }}, "b": {{ "Skiing", "Walking" }} }
+{ "a": {{ "Base Jumping", "Music" }}, "b": {{ "Music", "Base Jumping" }} }
+{ "a": {{ "Base Jumping", "Music" }}, "b": {{ "Music", "Base Jumping" }} }
+{ "a": {{ "Fishing", "Video Games" }}, "b": {{ "Video Games", "Fishing" }} }
+{ "a": {{ "Base Jumping", "Skiing" }}, "b": {{ "Skiing", "Base Jumping" }} }
+{ "a": {{ "Base Jumping", "Skiing" }}, "b": {{ "Base Jumping", "Skiing" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }} }
+{ "a": {{ "Fishing", "Running", "Cigars" }}, "b": {{ "Fishing", "Cigars", "Running" }} }
+{ "a": {{ "Cigars", "Skiing" }}, "b": {{ "Skiing", "Cigars" }} }
+{ "a": {{ "Movies", "Walking" }}, "b": {{ "Movies", "Walking" }} }
+{ "a": {{ "Music", "Coffee" }}, "b": {{ "Coffee", "Music" }} }
+{ "a": {{ "Running", "Coffee", "Fishing" }}, "b": {{ "Running", "Fishing", "Coffee" }} }
+{ "a": {{ "Squash", "Movies", "Coffee" }}, "b": {{ "Coffee", "Movies", "Squash" }} }
+{ "a": {{ "Music", "Tennis", "Base Jumping" }}, "b": {{ "Music", "Base Jumping", "Tennis" }} }
+{ "a": {{ "Music", "Base Jumping", "Books" }}, "b": {{ "Books", "Base Jumping", "Music" }} }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Bass", "Books" }} }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Books", "Bass" }} }
+{ "a": {{ "Puzzles", "Squash" }}, "b": {{ "Squash", "Puzzles" }} }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }} }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Computers", "Wine" }} }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }} }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }} }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }} }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }} }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }} }
+{ "a": {{ "Squash", "Databases" }}, "b": {{ "Squash", "Databases" }} }
+{ "a": {{ "Wine", "Computers" }}, "b": {{ "Computers", "Wine" }} }
+{ "a": {{ "Wine", "Computers" }}, "b": {{ "Wine", "Computers" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Skiing", "Bass" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }} }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }} }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Books", "Movies" }} }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }} }
+{ "a": {{ "Wine", "Squash" }}, "b": {{ "Wine", "Squash" }} }
+{ "a": {{ "Coffee", "Tennis" }}, "b": {{ "Tennis", "Coffee" }} }
+{ "a": {{ "Coffee", "Tennis" }}, "b": {{ "Tennis", "Coffee" }} }
+{ "a": {{ "Skiing", "Books" }}, "b": {{ "Books", "Skiing" }} }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Music", "Databases" }} }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Video Games", "Cigars" }}, "b": {{ "Cigars", "Video Games" }} }
+{ "a": {{ "Video Games", "Cigars" }}, "b": {{ "Video Games", "Cigars" }} }
+{ "a": {{ "Databases", "Skiing" }}, "b": {{ "Databases", "Skiing" }} }
+{ "a": {{ "Running", "Fishing" }}, "b": {{ "Running", "Fishing" }} }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Music", "Databases" }} }
+{ "a": {{ "Databases", "Music" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Base Jumping", "Running" }}, "b": {{ "Running", "Base Jumping" }} }
+{ "a": {{ "Base Jumping", "Running" }}, "b": {{ "Base Jumping", "Running" }} }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }} }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }} }
+{ "a": {{ "Cooking", "Running" }}, "b": {{ "Cooking", "Running" }} }
+{ "a": {{ "Video Games", "Databases" }}, "b": {{ "Databases", "Video Games" }} }
+{ "a": {{ "Video Games", "Databases" }}, "b": {{ "Databases", "Video Games" }} }
+{ "a": {{ "Cigars", "Video Games" }}, "b": {{ "Video Games", "Cigars" }} }
+{ "a": {{ "Running", "Base Jumping" }}, "b": {{ "Base Jumping", "Running" }} }
+{ "a": {{ "Coffee", "Databases" }}, "b": {{ "Databases", "Coffee" }} }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Books", "Movies" }} }
+{ "a": {{ "Movies", "Books" }}, "b": {{ "Movies", "Books" }} }
+{ "a": {{ "Databases", "Video Games" }}, "b": {{ "Databases", "Video Games" }} }
+{ "a": {{ "Music", "Base Jumping" }}, "b": {{ "Music", "Base Jumping" }} }
+{ "a": {{ "Bass", "Squash" }}, "b": {{ "Bass", "Squash" }} }
+{ "a": {{ "Computers", "Tennis" }}, "b": {{ "Tennis", "Computers" }} }
+{ "a": {{ "Tennis", "Coffee" }}, "b": {{ "Tennis", "Coffee" }} }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }} }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }} }
+{ "a": {{ "Skiing", "Wine" }}, "b": {{ "Wine", "Skiing" }} }
+{ "a": {{ "Squash", "Tennis" }}, "b": {{ "Squash", "Tennis" }} }
+{ "a": {{ "Walking", "Cooking" }}, "b": {{ "Walking", "Cooking" }} }
+{ "a": {{ "Coffee", "Tennis", "Bass" }}, "b": {{ "Coffee", "Bass", "Tennis" }} }
+{ "a": {{ "Music", "Squash" }}, "b": {{ "Music", "Squash" }} }
+{ "a": {{ "Computers", "Fishing" }}, "b": {{ "Fishing", "Computers" }} }
+{ "a": {{ "Computers", "Fishing" }}, "b": {{ "Computers", "Fishing" }} }
+{ "a": {{ "Wine", "Walking" }}, "b": {{ "Walking", "Wine" }} }
+{ "a": {{ "Skiing", "Base Jumping" }}, "b": {{ "Base Jumping", "Skiing" }} }
+{ "a": {{ "Bass", "Books" }}, "b": {{ "Books", "Bass" }} }
+{ "a": {{ "Fishing", "Music" }}, "b": {{ "Fishing", "Music" }} }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Books", "Tennis" }} }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Tennis", "Books" }} }
+{ "a": {{ "Books", "Tennis" }}, "b": {{ "Tennis", "Books" }} }
+{ "a": {{ "Fishing", "Databases" }}, "b": {{ "Fishing", "Databases" }} }
+{ "a": {{ "Walking", "Computers" }}, "b": {{ "Computers", "Walking" }} }
+{ "a": {{ "Books", "Base Jumping" }}, "b": {{ "Books", "Base Jumping" }} }
+{ "a": {{ "Movies", "Cooking", "Skiing" }}, "b": {{ "Movies", "Skiing", "Cooking" }} }
+{ "a": {{ "Puzzles", "Books" }}, "b": {{ "Puzzles", "Books" }} }
+{ "a": {{ "Wine", "Databases" }}, "b": {{ "Databases", "Wine" }} }
+{ "a": {{ "Fishing", "Databases", "Wine" }}, "b": {{ "Fishing", "Wine", "Databases" }} }
+{ "a": {{ "Fishing", "Databases", "Wine" }}, "b": {{ "Databases", "Fishing", "Wine" }} }
+{ "a": {{ "Coffee", "Movies", "Skiing" }}, "b": {{ "Coffee", "Movies", "Skiing" }} }
+{ "a": {{ "Cigars", "Cigars" }}, "b": {{ "Cigars", "Cigars" }} }
+{ "a": {{ "Bass", "Walking" }}, "b": {{ "Walking", "Bass" }} }
+{ "a": {{ "Wine", "Base Jumping", "Running" }}, "b": {{ "Base Jumping", "Running", "Wine" }} }
+{ "a": {{ "Databases", "Databases" }}, "b": {{ "Databases", "Databases" }} }
+{ "a": {{ "Movies", "Running" }}, "b": {{ "Movies", "Running" }} }
+{ "a": {{ "Wine", "Puzzles" }}, "b": {{ "Puzzles", "Wine" }} }
+{ "a": {{ "Squash", "Cigars" }}, "b": {{ "Squash", "Cigars" }} }
+{ "a": {{ "Cooking", "Bass" }}, "b": {{ "Cooking", "Bass" }} }
+{ "a": {{ "Databases", "Movies", "Tennis" }}, "b": {{ "Databases", "Movies", "Tennis" }} }
+{ "a": {{ "Fishing", "Computers" }}, "b": {{ "Computers", "Fishing" }} }
+{ "a": {{ "Fishing", "Movies" }}, "b": {{ "Fishing", "Movies" }} }
+{ "a": {{ "Base Jumping", "Tennis", "Video Games" }}, "b": {{ "Video Games", "Base Jumping", "Tennis" }} }
+{ "a": {{ "Computers", "Wine" }}, "b": {{ "Wine", "Computers" }} }
+{ "a": {{ "Skiing", "Bass" }}, "b": {{ "Bass", "Skiing" }} }
+{ "a": {{ "Music", "Databases" }}, "b": {{ "Databases", "Music" }} }
+{ "a": {{ "Fishing", "Wine", "Databases" }}, "b": {{ "Databases", "Fishing", "Wine" }} }
+{ "a": {{ "Books", "Movies" }}, "b": {{ "Movies", "Books" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.adm
new file mode 100644
index 0000000..29e66a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard-inline/word-jaccard-inline.1.adm
@@ -0,0 +1,5 @@
+{ "a": "Active Database Systems.", "b": "Active Database Systems", "jacc": 1.0f }
+{ "a": "Specification and Execution of Transactional Workflows.", "b": "Specification and Execution of Transactional Workflows", "jacc": 1.0f }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems", "jacc": 1.0f }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems", "jacc": 1.0f }
+{ "a": "A Shared View of Sharing  The Treaty of Orlando.", "b": "A Shared View of Sharing  The Treaty of Orlando", "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.adm
new file mode 100644
index 0000000..2bd52e3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join-noeqjoin/word-jaccard/word-jaccard.1.adm
@@ -0,0 +1,5 @@
+{ "a": "Active Database Systems.", "b": "Active Database Systems" }
+{ "a": "Specification and Execution of Transactional Workflows.", "b": "Specification and Execution of Transactional Workflows" }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems" }
+{ "a": "Integrated Office Systems.", "b": "Integrated Office Systems" }
+{ "a": "A Shared View of Sharing  The Treaty of Orlando.", "b": "A Shared View of Sharing  The Treaty of Orlando" }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm
new file mode 100644
index 0000000..986c7be
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance-inline/ngram-edit-distance-inline.1.adm
@@ -0,0 +1,13 @@
+{ "arec": { "cid": 8, "name": "Audria Haylett", "age": 44, "address": { "number": 4872, "street": "Washington St.", "city": "Portland" }, "interests": [ "Cooking", "Fishing", "Video Games" ], "children": [ { "name": "Lacie Haylett", "age": 19 } ] }, "brec": { "cid": 311, "name": "Ria Haflett", "age": 14, "address": { "number": 9513, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Walking" ], "children": [ { "name": "Jimmie Haflett", "age": null }, { "name": "Dario Haflett", "age": null }, { "name": "Robbyn Haflett", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 102, "name": "Melany Rotan", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Christiana Rotan", "age": 21 }, { "name": "Lavina Rotan", "age": null }, { "name": "Billy Rotan", "age": null } ] }, "brec": { "cid": 378, "name": "Melany Matias", "age": 10, "address": { "number": 8838, "street": "Main St.", "city": "Seattle" }, "interests": [ "Coffee", "Tennis", "Bass" ], "children": [ { "name": "Earnestine Matias", "age": null }, { "name": "Lore Matias", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 104, "name": "Neda Dilts", "age": null, "address": null, "interests": [ "Basketball" ], "children": [ { "name": "Nona Dilts", "age": 28 }, { "name": "Wm Dilts", "age": null }, { "name": "Svetlana Dilts", "age": 46 }, { "name": "Iva Dilts", "age": 59 } ] }, "brec": { "cid": 569, "name": "Beata Diles", "age": 88, "address": { "number": 2198, "street": "Park St.", "city": "Mountain View" }, "interests": [  ], "children": [ { "name": "Myrtice Diles", "age": 46 }, { "name": "Stella Diles", "age": null }, { "name": "Rowena Diles", "age": 26 } ] }, "ed": 4 }
+{ "arec": { "cid": 135, "name": "Josette Dries", "age": null, "address": null, "interests": [ "Base Jumping", "Movies" ], "children": [ { "name": "Ben Dries", "age": 36 }, { "name": "Wm Dries", "age": 29 } ] }, "brec": { "cid": 855, "name": "Rosette Reen", "age": 57, "address": { "number": 2767, "street": "Lake St.", "city": "Mountain View" }, "interests": [ "Basketball" ], "children": [  ] }, "ed": 4 }
+{ "arec": { "cid": 204, "name": "Londa Herdt", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Marnie Herdt", "age": 47 } ] }, "brec": { "cid": 247, "name": "Minda Heron", "age": 25, "address": { "number": 1629, "street": "Hill St.", "city": "Mountain View" }, "interests": [ "Tennis" ], "children": [  ] }, "ed": 4 }
+{ "arec": { "cid": 205, "name": "Moises Plake", "age": null, "address": null, "interests": [ "Puzzles", "Computers" ], "children": [  ] }, "brec": { "cid": 401, "name": "Moises Jago", "age": 27, "address": { "number": 3773, "street": "Main St.", "city": "San Jose" }, "interests": [ "Music" ], "children": [ { "name": "Shoshana Jago", "age": null }, { "name": "Juliet Jago", "age": null }, { "name": "Berneice Jago", "age": 13 } ] }, "ed": 4 }
+{ "arec": { "cid": 209, "name": "Donnette Kreb", "age": null, "address": null, "interests": [ "Puzzles", "Cooking", "Tennis", "Tennis" ], "children": [ { "name": "Hobert Kreb", "age": null }, { "name": "Ray Kreb", "age": null }, { "name": "Carmel Kreb", "age": 56 }, { "name": "Lise Kreb", "age": null } ] }, "brec": { "cid": 829, "name": "Donnette Lebel", "age": null, "address": null, "interests": [ "Tennis", "Coffee", "Running", "Fishing" ], "children": [ { "name": "Junior Lebel", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 272, "name": "Frederick Valla", "age": 15, "address": { "number": 6805, "street": "Lake St.", "city": "San Jose" }, "interests": [ "Video Games" ], "children": [ { "name": "Carroll Valla", "age": null } ] }, "brec": { "cid": 797, "name": "Frederica Kale", "age": 77, "address": { "number": 6861, "street": "Oak St.", "city": "Los Angeles" }, "interests": [ "Puzzles", "Bass" ], "children": [ { "name": "Shanice Kale", "age": null }, { "name": "Soraya Kale", "age": 64 }, { "name": "Laurena Kale", "age": 57 } ] }, "ed": 4 }
+{ "arec": { "cid": 464, "name": "Petra Kinsel", "age": null, "address": null, "interests": [ "Wine" ], "children": [ { "name": "Janise Kinsel", "age": null }, { "name": "Donnie Kinsel", "age": 26 }, { "name": "Joana Kinsel", "age": 12 } ] }, "brec": { "cid": 748, "name": "Petra Ganes", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Perry Ganes", "age": null }, { "name": "Krista Ganes", "age": 54 }, { "name": "Kayce Ganes", "age": 52 }, { "name": "Eleni Ganes", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 470, "name": "Yesenia Doyon", "age": 78, "address": { "number": 3641, "street": "7th St.", "city": "Seattle" }, "interests": [ "Databases", "Puzzles" ], "children": [ { "name": "Halley Doyon", "age": null }, { "name": "Teisha Doyon", "age": 33 }, { "name": "Warren Doyon", "age": null } ] }, "brec": { "cid": 997, "name": "Yesenia Gao", "age": 38, "address": { "number": 5990, "street": "View St.", "city": "Portland" }, "interests": [ "Computers", "Computers", "Puzzles", "Puzzles" ], "children": [ { "name": "Jared Gao", "age": 11 }, { "name": "Sang Gao", "age": null }, { "name": "Jeanne Gao", "age": 13 }, { "name": "Lavona Gao", "age": 23 } ] }, "ed": 4 }
+{ "arec": { "cid": 486, "name": "Willa Patman", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Ross Patman", "age": 42 }, { "name": "Erin Patman", "age": null }, { "name": "Vannessa Patman", "age": 11 }, { "name": "Hilaria Patman", "age": 28 } ] }, "brec": { "cid": 765, "name": "Mila Barman", "age": null, "address": null, "interests": [ "Coffee", "Puzzles", "Bass", "Wine" ], "children": [ { "name": "Lucienne Barman", "age": null }, { "name": "Marina Barman", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 531, "name": "Camelia Yoes", "age": null, "address": null, "interests": [  ], "children": [  ] }, "brec": { "cid": 574, "name": "Camellia Toxey", "age": 52, "address": { "number": 5437, "street": "Hill St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Deandrea Toxey", "age": null }, { "name": "Danille Toxey", "age": null } ] }, "ed": 4 }
+{ "arec": { "cid": 803, "name": "Yolonda Korf", "age": null, "address": null, "interests": [ "Bass", "Skiing", "Music" ], "children": [ { "name": "Ivette Korf", "age": null }, { "name": "Lashon Korf", "age": null } ] }, "brec": { "cid": 954, "name": "Yolonda Pu", "age": null, "address": null, "interests": [ "Video Games", "Music", "Cooking", "Skiing" ], "children": [ { "name": "Josephina Pu", "age": 35 } ] }, "ed": 4 }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.adm
new file mode 100644
index 0000000..0f9b451
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-edit-distance/ngram-edit-distance.1.adm
@@ -0,0 +1,13 @@
+{ "arec": { "cid": 8, "name": "Audria Haylett", "age": 44, "address": { "number": 4872, "street": "Washington St.", "city": "Portland" }, "interests": [ "Cooking", "Fishing", "Video Games" ], "children": [ { "name": "Lacie Haylett", "age": 19 } ] }, "brec": { "cid": 311, "name": "Ria Haflett", "age": 14, "address": { "number": 9513, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Walking" ], "children": [ { "name": "Jimmie Haflett", "age": null }, { "name": "Dario Haflett", "age": null }, { "name": "Robbyn Haflett", "age": null } ] } }
+{ "arec": { "cid": 102, "name": "Melany Rotan", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Christiana Rotan", "age": 21 }, { "name": "Lavina Rotan", "age": null }, { "name": "Billy Rotan", "age": null } ] }, "brec": { "cid": 378, "name": "Melany Matias", "age": 10, "address": { "number": 8838, "street": "Main St.", "city": "Seattle" }, "interests": [ "Coffee", "Tennis", "Bass" ], "children": [ { "name": "Earnestine Matias", "age": null }, { "name": "Lore Matias", "age": null } ] } }
+{ "arec": { "cid": 104, "name": "Neda Dilts", "age": null, "address": null, "interests": [ "Basketball" ], "children": [ { "name": "Nona Dilts", "age": 28 }, { "name": "Wm Dilts", "age": null }, { "name": "Svetlana Dilts", "age": 46 }, { "name": "Iva Dilts", "age": 59 } ] }, "brec": { "cid": 569, "name": "Beata Diles", "age": 88, "address": { "number": 2198, "street": "Park St.", "city": "Mountain View" }, "interests": [  ], "children": [ { "name": "Myrtice Diles", "age": 46 }, { "name": "Stella Diles", "age": null }, { "name": "Rowena Diles", "age": 26 } ] } }
+{ "arec": { "cid": 135, "name": "Josette Dries", "age": null, "address": null, "interests": [ "Base Jumping", "Movies" ], "children": [ { "name": "Ben Dries", "age": 36 }, { "name": "Wm Dries", "age": 29 } ] }, "brec": { "cid": 855, "name": "Rosette Reen", "age": 57, "address": { "number": 2767, "street": "Lake St.", "city": "Mountain View" }, "interests": [ "Basketball" ], "children": [  ] } }
+{ "arec": { "cid": 204, "name": "Londa Herdt", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Marnie Herdt", "age": 47 } ] }, "brec": { "cid": 247, "name": "Minda Heron", "age": 25, "address": { "number": 1629, "street": "Hill St.", "city": "Mountain View" }, "interests": [ "Tennis" ], "children": [  ] } }
+{ "arec": { "cid": 205, "name": "Moises Plake", "age": null, "address": null, "interests": [ "Puzzles", "Computers" ], "children": [  ] }, "brec": { "cid": 401, "name": "Moises Jago", "age": 27, "address": { "number": 3773, "street": "Main St.", "city": "San Jose" }, "interests": [ "Music" ], "children": [ { "name": "Shoshana Jago", "age": null }, { "name": "Juliet Jago", "age": null }, { "name": "Berneice Jago", "age": 13 } ] } }
+{ "arec": { "cid": 209, "name": "Donnette Kreb", "age": null, "address": null, "interests": [ "Puzzles", "Cooking", "Tennis", "Tennis" ], "children": [ { "name": "Hobert Kreb", "age": null }, { "name": "Ray Kreb", "age": null }, { "name": "Carmel Kreb", "age": 56 }, { "name": "Lise Kreb", "age": null } ] }, "brec": { "cid": 829, "name": "Donnette Lebel", "age": null, "address": null, "interests": [ "Tennis", "Coffee", "Running", "Fishing" ], "children": [ { "name": "Junior Lebel", "age": null } ] } }
+{ "arec": { "cid": 272, "name": "Frederick Valla", "age": 15, "address": { "number": 6805, "street": "Lake St.", "city": "San Jose" }, "interests": [ "Video Games" ], "children": [ { "name": "Carroll Valla", "age": null } ] }, "brec": { "cid": 797, "name": "Frederica Kale", "age": 77, "address": { "number": 6861, "street": "Oak St.", "city": "Los Angeles" }, "interests": [ "Puzzles", "Bass" ], "children": [ { "name": "Shanice Kale", "age": null }, { "name": "Soraya Kale", "age": 64 }, { "name": "Laurena Kale", "age": 57 } ] } }
+{ "arec": { "cid": 464, "name": "Petra Kinsel", "age": null, "address": null, "interests": [ "Wine" ], "children": [ { "name": "Janise Kinsel", "age": null }, { "name": "Donnie Kinsel", "age": 26 }, { "name": "Joana Kinsel", "age": 12 } ] }, "brec": { "cid": 748, "name": "Petra Ganes", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Perry Ganes", "age": null }, { "name": "Krista Ganes", "age": 54 }, { "name": "Kayce Ganes", "age": 52 }, { "name": "Eleni Ganes", "age": null } ] } }
+{ "arec": { "cid": 470, "name": "Yesenia Doyon", "age": 78, "address": { "number": 3641, "street": "7th St.", "city": "Seattle" }, "interests": [ "Databases", "Puzzles" ], "children": [ { "name": "Halley Doyon", "age": null }, { "name": "Teisha Doyon", "age": 33 }, { "name": "Warren Doyon", "age": null } ] }, "brec": { "cid": 997, "name": "Yesenia Gao", "age": 38, "address": { "number": 5990, "street": "View St.", "city": "Portland" }, "interests": [ "Computers", "Computers", "Puzzles", "Puzzles" ], "children": [ { "name": "Jared Gao", "age": 11 }, { "name": "Sang Gao", "age": null }, { "name": "Jeanne Gao", "age": 13 }, { "name": "Lavona Gao", "age": 23 } ] } }
+{ "arec": { "cid": 486, "name": "Willa Patman", "age": null, "address": null, "interests": [  ], "children": [ { "name": "Ross Patman", "age": 42 }, { "name": "Erin Patman", "age": null }, { "name": "Vannessa Patman", "age": 11 }, { "name": "Hilaria Patman", "age": 28 } ] }, "brec": { "cid": 765, "name": "Mila Barman", "age": null, "address": null, "interests": [ "Coffee", "Puzzles", "Bass", "Wine" ], "children": [ { "name": "Lucienne Barman", "age": null }, { "name": "Marina Barman", "age": null } ] } }
+{ "arec": { "cid": 531, "name": "Camelia Yoes", "age": null, "address": null, "interests": [  ], "children": [  ] }, "brec": { "cid": 574, "name": "Camellia Toxey", "age": 52, "address": { "number": 5437, "street": "Hill St.", "city": "Portland" }, "interests": [  ], "children": [ { "name": "Deandrea Toxey", "age": null }, { "name": "Danille Toxey", "age": null } ] } }
+{ "arec": { "cid": 803, "name": "Yolonda Korf", "age": null, "address": null, "interests": [ "Bass", "Skiing", "Music" ], "children": [ { "name": "Ivette Korf", "age": null }, { "name": "Lashon Korf", "age": null } ] }, "brec": { "cid": 954, "name": "Yolonda Pu", "age": null, "address": null, "interests": [ "Video Games", "Music", "Cooking", "Skiing" ], "children": [ { "name": "Josephina Pu", "age": 35 } ] } }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.adm
new file mode 100644
index 0000000..568272c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard-inline/ngram-jaccard-inline.1.adm
@@ -0,0 +1,7 @@
+{ "arec": { "id": 3, "dblpid": "books/acm/kim95/BreitbartGS95", "title": "Transaction Management in Multidatabase Systems.", "authors": "Yuri Breitbart Hector Garcia-Molina Abraham Silberschatz", "misc": "2004-03-08 573-591 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartGS95 1995" }, "brec": { "id": 85, "csxid": "oai CiteSeerXPSU 10.1.1.37.8818", "title": "Overview of Multidatabase Transaction Management", "authors": "Yuri Breitbart Hector Garcia-Molina Avi Silberschatz", "misc": "2009-06-22 A multidatabase system (MDBS) is a facility that allows users access to data located in multiple autonomous database management systems (DBMSs). In such a system, global transactions are executed under the control of the MDBS. Independently, local transactions are executed under the control of the local DBMSs. Each local DBMS integrated by the MDBS may employ a different transaction management scheme. In addition, each local DBMS has complete control over all transactions (global and local) executing at its site, including the ability to abort at any point any of the transactions executing at its site. Typically, no design or internal DBMS structure changes are allowed in order to accommodate the MDBS. Furthermore, the local DBMSs may not be aware of each other, and, as a consequence, cannot coordinate their actions. Thus, traditional techniques for ensuring transaction atomicity and consistency in homogeneous distributed database systems may not be appropriate for an MDBS environment.... CiteSeerX  2009-06-22 2007-11-22 1992 text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.37.8818 ftp //ftp.cs.utexas.edu/pub/avi/UT-CS-TR-92-21.PS.Z en 10.1.1.101.8988 10.1.1.130.1772 10.1.1.38.6210 10.1.1.34.3768 10.1.1.36.1275 10.1.1.104.3430 10.1.1.112.244 10.1.1.94.9106 10.1.1.41.4043 10.1.1.49.5143 10.1.1.59.2034 10.1.1.53.875 10.1.1.137.5642 10.1.1.41.8832 10.1.1.21.1100 10.1.1.105.3626 10.1.1.44.773 10.1.1.21.2576 10.1.1.40.6484 10.1.1.144.2713 10.1.1.48.6718 10.1.1.16.6166 10.1.1.40.832 10.1.1.36.2660 10.1.1.30.3087 10.1.1.47.322 10.1.1.17.6532 10.1.1.33.2301 10.1.1.20.4306 10.1.1.47.6258 10.1.1.39.9212 10.1.1.46.4334 10.1.1.71.485 10.1.1.43.1405 10.1.1.49.1308 10.1.1.35.6530 10.1.1.42.5177 10.1.1.54.4068 10.1.1.133.3692 10.1.1.40.4220 10.1.1.48.7743 10.1.1.26.575 10.1.1.107.596 10.1.1.116.3495 10.1.1.33.2074 10.1.1.38.7229 10.1.1.59.4464 10.1.1.103.9562 10.1.1.36.5887 10.1.1.40.9658 10.1.1.53.6783 10.1.1.29.5010 10.1.1.107.876 10.1.1.46.2273 10.1.1.46.3657 10.1.1.49.5281 10.1.1.50.4114 10.1.1.63.3234 10.1.1.79.9607 10.1.1.83.4819 10.1.1.83.4980 10.1.1.84.8136 10.1.1.90.953 10.1.1.90.9785 10.1.1.92.2397 10.1.1.93.8911 10.1.1.94.3702 10.1.1.97.672 10.1.1.98.4604 10.1.1.117.6190 10.1.1.118.4814 10.1.1.130.880 10.1.1.137.1167 10.1.1.51.5111 10.1.1.45.2774 10.1.1.45.9165 10.1.1.40.4684 10.1.1.35.5866 10.1.1.38.3606 10.1.1.29.9166 10.1.1.31.3667 10.1.1.21.7181 10.1.1.33.2343 10.1.1.23.3117 10.1.1.24.7879 10.1.1.18.8936 10.1.1.19.3770 10.1.1.19.5246 10.1.1.12.3293 10.1.1.2.2325 10.1.1.60.116 10.1.1.140.5244 10.1.1.143.3448 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.55932206f }
+{ "arec": { "id": 3, "dblpid": "books/acm/kim95/BreitbartGS95", "title": "Transaction Management in Multidatabase Systems.", "authors": "Yuri Breitbart Hector Garcia-Molina Abraham Silberschatz", "misc": "2004-03-08 573-591 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartGS95 1995" }, "brec": { "id": 86, "csxid": "oai CiteSeerXPSU 10.1.1.54.6302", "title": "Overview of Multidatabase Transaction Management", "authors": "Yuri Breitbart Hector Garcia-molina Avi Silberschatz", "misc": "2009-04-12 A multidatabase system (MDBS) is a facility that allows users access to data located in multiple autonomous database management systems (DBMSs). In such a system, global transactions are executed under the control of the MDBS. Independently, local transactions are executed under the control of the local DBMSs. Each local DBMS integrated by the MDBS may employ a different transaction management scheme. In addition, each local DBMS has complete control over all transactions (global and local) executing at its site, including the ability to abort at any point any of the transactions executing at its site. Typically, no design or internal DBMS structure changes are allowed in order to accommodate the MDBS. Furthermore, the local DBMSs may not be aware of each other, and, as a consequence, cannot coordinate their actions. Thus, traditional techniques for ensuring transaction atomicity and consistency in homogeneous distributed database systems may not be appropriate for an MDBS environment.... CiteSeerX  2009-04-12 2007-11-22 1992 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.54.6302 http //www-db.stanford.edu/pub/papers/multidatabase.ps en 10.1.1.101.8988 10.1.1.130.1772 10.1.1.38.6210 10.1.1.34.3768 10.1.1.36.1275 10.1.1.104.3430 10.1.1.112.244 10.1.1.94.9106 10.1.1.41.4043 10.1.1.49.5143 10.1.1.59.2034 10.1.1.53.875 10.1.1.137.5642 10.1.1.41.8832 10.1.1.21.1100 10.1.1.105.3626 10.1.1.44.773 10.1.1.21.2576 10.1.1.40.6484 10.1.1.144.2713 10.1.1.48.6718 10.1.1.16.6166 10.1.1.40.832 10.1.1.36.2660 10.1.1.30.3087 10.1.1.47.322 10.1.1.17.6532 10.1.1.33.2301 10.1.1.20.4306 10.1.1.47.6258 10.1.1.39.9212 10.1.1.46.4334 10.1.1.71.485 10.1.1.43.1405 10.1.1.49.1308 10.1.1.35.6530 10.1.1.42.5177 10.1.1.54.4068 10.1.1.133.3692 10.1.1.40.4220 10.1.1.48.7743 10.1.1.26.575 10.1.1.107.596 10.1.1.116.3495 10.1.1.33.2074 10.1.1.38.7229 10.1.1.59.4464 10.1.1.103.9562 10.1.1.36.5887 10.1.1.40.9658 10.1.1.53.6783 10.1.1.29.5010 10.1.1.107.876 10.1.1.46.2273 10.1.1.46.3657 10.1.1.49.5281 10.1.1.50.4114 10.1.1.63.3234 10.1.1.79.9607 10.1.1.83.4819 10.1.1.83.4980 10.1.1.84.8136 10.1.1.90.953 10.1.1.90.9785 10.1.1.92.2397 10.1.1.93.8911 10.1.1.94.3702 10.1.1.97.672 10.1.1.98.4604 10.1.1.117.6190 10.1.1.118.4814 10.1.1.130.880 10.1.1.137.1167 10.1.1.51.5111 10.1.1.45.2774 10.1.1.45.9165 10.1.1.40.4684 10.1.1.35.5866 10.1.1.38.3606 10.1.1.29.9166 10.1.1.31.3667 10.1.1.21.7181 10.1.1.33.2343 10.1.1.23.3117 10.1.1.24.7879 10.1.1.18.8936 10.1.1.19.3770 10.1.1.19.5246 10.1.1.12.3293 10.1.1.2.2325 10.1.1.60.116 10.1.1.140.5244 10.1.1.143.3448 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.55932206f }
+{ "arec": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "brec": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.95454544f }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.9583333f }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.9583333f }
+{ "arec": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "brec": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.9782609f }
+{ "arec": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "brec": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 0.9811321f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard/ngram-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard/ngram-jaccard.1.adm
new file mode 100644
index 0000000..f48c6c9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ngram-jaccard/ngram-jaccard.1.adm
@@ -0,0 +1,7 @@
+{ "arec": { "id": 3, "dblpid": "books/acm/kim95/BreitbartGS95", "title": "Transaction Management in Multidatabase Systems.", "authors": "Yuri Breitbart Hector Garcia-Molina Abraham Silberschatz", "misc": "2004-03-08 573-591 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartGS95 1995" }, "brec": { "id": 85, "csxid": "oai CiteSeerXPSU 10.1.1.37.8818", "title": "Overview of Multidatabase Transaction Management", "authors": "Yuri Breitbart Hector Garcia-Molina Avi Silberschatz", "misc": "2009-06-22 A multidatabase system (MDBS) is a facility that allows users access to data located in multiple autonomous database management systems (DBMSs). In such a system, global transactions are executed under the control of the MDBS. Independently, local transactions are executed under the control of the local DBMSs. Each local DBMS integrated by the MDBS may employ a different transaction management scheme. In addition, each local DBMS has complete control over all transactions (global and local) executing at its site, including the ability to abort at any point any of the transactions executing at its site. Typically, no design or internal DBMS structure changes are allowed in order to accommodate the MDBS. Furthermore, the local DBMSs may not be aware of each other, and, as a consequence, cannot coordinate their actions. Thus, traditional techniques for ensuring transaction atomicity and consistency in homogeneous distributed database systems may not be appropriate for an MDBS environment.... CiteSeerX  2009-06-22 2007-11-22 1992 text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.37.8818 ftp //ftp.cs.utexas.edu/pub/avi/UT-CS-TR-92-21.PS.Z en 10.1.1.101.8988 10.1.1.130.1772 10.1.1.38.6210 10.1.1.34.3768 10.1.1.36.1275 10.1.1.104.3430 10.1.1.112.244 10.1.1.94.9106 10.1.1.41.4043 10.1.1.49.5143 10.1.1.59.2034 10.1.1.53.875 10.1.1.137.5642 10.1.1.41.8832 10.1.1.21.1100 10.1.1.105.3626 10.1.1.44.773 10.1.1.21.2576 10.1.1.40.6484 10.1.1.144.2713 10.1.1.48.6718 10.1.1.16.6166 10.1.1.40.832 10.1.1.36.2660 10.1.1.30.3087 10.1.1.47.322 10.1.1.17.6532 10.1.1.33.2301 10.1.1.20.4306 10.1.1.47.6258 10.1.1.39.9212 10.1.1.46.4334 10.1.1.71.485 10.1.1.43.1405 10.1.1.49.1308 10.1.1.35.6530 10.1.1.42.5177 10.1.1.54.4068 10.1.1.133.3692 10.1.1.40.4220 10.1.1.48.7743 10.1.1.26.575 10.1.1.107.596 10.1.1.116.3495 10.1.1.33.2074 10.1.1.38.7229 10.1.1.59.4464 10.1.1.103.9562 10.1.1.36.5887 10.1.1.40.9658 10.1.1.53.6783 10.1.1.29.5010 10.1.1.107.876 10.1.1.46.2273 10.1.1.46.3657 10.1.1.49.5281 10.1.1.50.4114 10.1.1.63.3234 10.1.1.79.9607 10.1.1.83.4819 10.1.1.83.4980 10.1.1.84.8136 10.1.1.90.953 10.1.1.90.9785 10.1.1.92.2397 10.1.1.93.8911 10.1.1.94.3702 10.1.1.97.672 10.1.1.98.4604 10.1.1.117.6190 10.1.1.118.4814 10.1.1.130.880 10.1.1.137.1167 10.1.1.51.5111 10.1.1.45.2774 10.1.1.45.9165 10.1.1.40.4684 10.1.1.35.5866 10.1.1.38.3606 10.1.1.29.9166 10.1.1.31.3667 10.1.1.21.7181 10.1.1.33.2343 10.1.1.23.3117 10.1.1.24.7879 10.1.1.18.8936 10.1.1.19.3770 10.1.1.19.5246 10.1.1.12.3293 10.1.1.2.2325 10.1.1.60.116 10.1.1.140.5244 10.1.1.143.3448 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 3, "dblpid": "books/acm/kim95/BreitbartGS95", "title": "Transaction Management in Multidatabase Systems.", "authors": "Yuri Breitbart Hector Garcia-Molina Abraham Silberschatz", "misc": "2004-03-08 573-591 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#BreitbartGS95 1995" }, "brec": { "id": 86, "csxid": "oai CiteSeerXPSU 10.1.1.54.6302", "title": "Overview of Multidatabase Transaction Management", "authors": "Yuri Breitbart Hector Garcia-molina Avi Silberschatz", "misc": "2009-04-12 A multidatabase system (MDBS) is a facility that allows users access to data located in multiple autonomous database management systems (DBMSs). In such a system, global transactions are executed under the control of the MDBS. Independently, local transactions are executed under the control of the local DBMSs. Each local DBMS integrated by the MDBS may employ a different transaction management scheme. In addition, each local DBMS has complete control over all transactions (global and local) executing at its site, including the ability to abort at any point any of the transactions executing at its site. Typically, no design or internal DBMS structure changes are allowed in order to accommodate the MDBS. Furthermore, the local DBMSs may not be aware of each other, and, as a consequence, cannot coordinate their actions. Thus, traditional techniques for ensuring transaction atomicity and consistency in homogeneous distributed database systems may not be appropriate for an MDBS environment.... CiteSeerX  2009-04-12 2007-11-22 1992 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.54.6302 http //www-db.stanford.edu/pub/papers/multidatabase.ps en 10.1.1.101.8988 10.1.1.130.1772 10.1.1.38.6210 10.1.1.34.3768 10.1.1.36.1275 10.1.1.104.3430 10.1.1.112.244 10.1.1.94.9106 10.1.1.41.4043 10.1.1.49.5143 10.1.1.59.2034 10.1.1.53.875 10.1.1.137.5642 10.1.1.41.8832 10.1.1.21.1100 10.1.1.105.3626 10.1.1.44.773 10.1.1.21.2576 10.1.1.40.6484 10.1.1.144.2713 10.1.1.48.6718 10.1.1.16.6166 10.1.1.40.832 10.1.1.36.2660 10.1.1.30.3087 10.1.1.47.322 10.1.1.17.6532 10.1.1.33.2301 10.1.1.20.4306 10.1.1.47.6258 10.1.1.39.9212 10.1.1.46.4334 10.1.1.71.485 10.1.1.43.1405 10.1.1.49.1308 10.1.1.35.6530 10.1.1.42.5177 10.1.1.54.4068 10.1.1.133.3692 10.1.1.40.4220 10.1.1.48.7743 10.1.1.26.575 10.1.1.107.596 10.1.1.116.3495 10.1.1.33.2074 10.1.1.38.7229 10.1.1.59.4464 10.1.1.103.9562 10.1.1.36.5887 10.1.1.40.9658 10.1.1.53.6783 10.1.1.29.5010 10.1.1.107.876 10.1.1.46.2273 10.1.1.46.3657 10.1.1.49.5281 10.1.1.50.4114 10.1.1.63.3234 10.1.1.79.9607 10.1.1.83.4819 10.1.1.83.4980 10.1.1.84.8136 10.1.1.90.953 10.1.1.90.9785 10.1.1.92.2397 10.1.1.93.8911 10.1.1.94.3702 10.1.1.97.672 10.1.1.98.4604 10.1.1.117.6190 10.1.1.118.4814 10.1.1.130.880 10.1.1.137.1167 10.1.1.51.5111 10.1.1.45.2774 10.1.1.45.9165 10.1.1.40.4684 10.1.1.35.5866 10.1.1.38.3606 10.1.1.29.9166 10.1.1.31.3667 10.1.1.21.7181 10.1.1.33.2343 10.1.1.23.3117 10.1.1.24.7879 10.1.1.18.8936 10.1.1.19.3770 10.1.1.19.5246 10.1.1.12.3293 10.1.1.2.2325 10.1.1.60.116 10.1.1.140.5244 10.1.1.143.3448 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "brec": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "brec": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "brec": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.adm
new file mode 100644
index 0000000..eadf56e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance-inline/olist-edit-distance-inline.1.adm
@@ -0,0 +1,157 @@
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+{ "arec": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Norine Sultzer", "age": 29 } ] }, "brec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }, "ed": 0 }
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+{ "arec": { "cid": 16, "name": "Felisa Auletta", "age": 55, "address": { "number": 7737, "street": "View St.", "city": "San Jose" }, "interests": [ "Skiing", "Coffee", "Wine" ], "children": [ { "name": "Rosalia Auletta", "age": 36 } ] }, "brec": { "cid": 618, "name": "Janella Hurtt", "age": null, "address": null, "interests": [ "Skiing", "Coffee", "Skiing" ], "children": [ { "name": "Lupe Hurtt", "age": 17 }, { "name": "Jae Hurtt", "age": 14 }, { "name": "Evan Hurtt", "age": 45 } ] }, "ed": 1 }
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+{ "arec": { "cid": 51, "name": "Simonne Cape", "age": null, "address": null, "interests": [ "Bass", "Bass", "Books" ], "children": [ { "name": "Leland Cape", "age": null }, { "name": "Gearldine Cape", "age": null } ] }, "brec": { "cid": 412, "name": "Devon Szalai", "age": 26, "address": { "number": 2384, "street": "Lake St.", "city": "Los Angeles" }, "interests": [ "Bass", "Books", "Books" ], "children": [ { "name": "Yolonda Szalai", "age": null }, { "name": "Denita Szalai", "age": null }, { "name": "Priscila Szalai", "age": 10 }, { "name": "Cassondra Szalai", "age": 12 } ] }, "ed": 1 }
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+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 371, "name": "Agatha Tensley", "age": 13, "address": { "number": 1810, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Bass", "Running", "Movies" ], "children": [ { "name": "Launa Tensley", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 387, "name": "Leonard Mabie", "age": 33, "address": { "number": 6703, "street": "View St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Walking" ], "children": [ { "name": "Jone Mabie", "age": 16 }, { "name": "Claire Mabie", "age": null }, { "name": "Larraine Mabie", "age": null }, { "name": "Corrina Mabie", "age": null } ] }, "ed": 1 }
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+{ "arec": { "cid": 73, "name": "Kelsey Flever", "age": 20, "address": { "number": 3555, "street": "Main St.", "city": "Portland" }, "interests": [ "Tennis", "Puzzles", "Video Games" ], "children": [ { "name": "Isis Flever", "age": null }, { "name": "Gonzalo Flever", "age": null } ] }, "brec": { "cid": 734, "name": "Lera Korn", "age": null, "address": null, "interests": [ "Tennis", "Puzzles", "Cigars" ], "children": [ { "name": "Criselda Korn", "age": 37 } ] }, "ed": 1 }
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+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 462, "name": "Margaret Galvis", "age": null, "address": null, "interests": [ "Base Jumping", "Movies", "Movies" ], "children": [ { "name": "Isaac Galvis", "age": 48 }, { "name": "Mei Galvis", "age": null }, { "name": "Asha Galvis", "age": null }, { "name": "Zachery Galvis", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Norine Sultzer", "age": 29 } ] }, "ed": 1 }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 84, "name": "Huong Kachel", "age": null, "address": null, "interests": [ "Music", "Tennis", "Base Jumping" ], "children": [ { "name": "Katlyn Kachel", "age": 40 }, { "name": "Sherman Kachel", "age": null }, { "name": "Susana Kachel", "age": 32 } ] }, "brec": { "cid": 326, "name": "Tad Tellers", "age": null, "address": null, "interests": [ "Books", "Tennis", "Base Jumping" ], "children": [ { "name": "Fannie Tellers", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 88, "name": "Courtney Muckleroy", "age": null, "address": null, "interests": [ "Wine", "Movies", "Skiing" ], "children": [ { "name": "Alona Muckleroy", "age": 30 }, { "name": "Flora Muckleroy", "age": 41 }, { "name": "Angel Muckleroy", "age": null }, { "name": "Daniella Muckleroy", "age": null } ] }, "brec": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Norine Sultzer", "age": 29 } ] }, "ed": 1 }
+{ "arec": { "cid": 88, "name": "Courtney Muckleroy", "age": null, "address": null, "interests": [ "Wine", "Movies", "Skiing" ], "children": [ { "name": "Alona Muckleroy", "age": 30 }, { "name": "Flora Muckleroy", "age": 41 }, { "name": "Angel Muckleroy", "age": null }, { "name": "Daniella Muckleroy", "age": null } ] }, "brec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }, "ed": 1 }
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+{ "arec": { "cid": 120, "name": "Jan Gianandrea", "age": null, "address": null, "interests": [ "Databases", "Movies", "Cigars" ], "children": [ { "name": "Keesha Gianandrea", "age": null }, { "name": "Vashti Gianandrea", "age": 35 }, { "name": "Larry Gianandrea", "age": 29 } ] }, "brec": { "cid": 636, "name": "Babara Shore", "age": 83, "address": { "number": 9452, "street": "Oak St.", "city": "Los Angeles" }, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Candy Shore", "age": 58 }, { "name": "Nanci Shore", "age": null }, { "name": "Asia Shore", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 120, "name": "Jan Gianandrea", "age": null, "address": null, "interests": [ "Databases", "Movies", "Cigars" ], "children": [ { "name": "Keesha Gianandrea", "age": null }, { "name": "Vashti Gianandrea", "age": 35 }, { "name": "Larry Gianandrea", "age": 29 } ] }, "brec": { "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] }, "ed": 1 }
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+{ "arec": { "cid": 139, "name": "Micheline Argenal", "age": null, "address": null, "interests": [ "Bass", "Walking", "Movies" ], "children": [ { "name": "Joye Argenal", "age": 51 }, { "name": "Richard Argenal", "age": 46 }, { "name": "Sarah Argenal", "age": 21 }, { "name": "Jacinda Argenal", "age": 21 } ] }, "brec": { "cid": 371, "name": "Agatha Tensley", "age": 13, "address": { "number": 1810, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Bass", "Running", "Movies" ], "children": [ { "name": "Launa Tensley", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 141, "name": "Adena Klockars", "age": null, "address": null, "interests": [ "Skiing", "Computers", "Bass", "Cigars" ], "children": [  ] }, "brec": { "cid": 794, "name": "Annabel Leins", "age": 75, "address": { "number": 9761, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Bass", "Computers", "Bass", "Cigars" ], "children": [ { "name": "Oswaldo Leins", "age": 21 } ] }, "ed": 1 }
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+{ "arec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }, "brec": { "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": [ "Coffee", "Movies", "Squash" ], "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 892, "name": "Madge Hendson", "age": 79, "address": { "number": 8832, "street": "Cedar St.", "city": "San Jose" }, "interests": [ "Databases", "Fishing", "Skiing" ], "children": [ { "name": "Elia Hendson", "age": 48 }, { "name": "Lashawn Hendson", "age": 27 } ] }, "brec": { "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": [ "Databases", "Fishing", "Wine" ], "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] }, "ed": 1 }
+{ "arec": { "cid": 908, "name": "Ferdinand Auila", "age": 82, "address": { "number": 1071, "street": "Lake St.", "city": "Portland" }, "interests": [ "Base Jumping", "Running", "Wine" ], "children": [ { "name": "Ai Auila", "age": 69 }, { "name": "Laurel Auila", "age": null } ] }, "brec": { "cid": 948, "name": "Thad Scialpi", "age": 22, "address": { "number": 8731, "street": "Washington St.", "city": "Portland" }, "interests": [ "Base Jumping", "Tennis", "Wine" ], "children": [ { "name": "Harlan Scialpi", "age": 10 }, { "name": "Lucile Scialpi", "age": 11 }, { "name": "Audria Scialpi", "age": null } ] }, "ed": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance/olist-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance/olist-edit-distance.1.adm
new file mode 100644
index 0000000..c7f3d4d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-edit-distance/olist-edit-distance.1.adm
@@ -0,0 +1,157 @@
+{ "arec": { "cid": 8, "name": "Audria Haylett", "age": 44, "address": { "number": 4872, "street": "Washington St.", "city": "Portland" }, "interests": [ "Cooking", "Fishing", "Video Games" ], "children": [ { "name": "Lacie Haylett", "age": 19 } ] }, "brec": { "cid": 563, "name": "Deirdre Landero", "age": null, "address": null, "interests": [ "Books", "Fishing", "Video Games" ], "children": [ { "name": "Norman Landero", "age": 59 }, { "name": "Jennine Landero", "age": 45 }, { "name": "Rutha Landero", "age": 19 }, { "name": "Jackie Landero", "age": 29 } ] } }
+{ "arec": { "cid": 16, "name": "Felisa Auletta", "age": 55, "address": { "number": 7737, "street": "View St.", "city": "San Jose" }, "interests": [ "Skiing", "Coffee", "Wine" ], "children": [ { "name": "Rosalia Auletta", "age": 36 } ] }, "brec": { "cid": 273, "name": "Corrinne Seaquist", "age": 24, "address": { "number": 6712, "street": "7th St.", "city": "Portland" }, "interests": [ "Puzzles", "Coffee", "Wine" ], "children": [ { "name": "Mignon Seaquist", "age": null }, { "name": "Leo Seaquist", "age": null } ] } }
+{ "arec": { "cid": 16, "name": "Felisa Auletta", "age": 55, "address": { "number": 7737, "street": "View St.", "city": "San Jose" }, "interests": [ "Skiing", "Coffee", "Wine" ], "children": [ { "name": "Rosalia Auletta", "age": 36 } ] }, "brec": { "cid": 618, "name": "Janella Hurtt", "age": null, "address": null, "interests": [ "Skiing", "Coffee", "Skiing" ], "children": [ { "name": "Lupe Hurtt", "age": 17 }, { "name": "Jae Hurtt", "age": 14 }, { "name": "Evan Hurtt", "age": 45 } ] } }
+{ "arec": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }, "brec": { "cid": 156, "name": "Bobbye Kauppi", "age": 79, "address": { "number": 2051, "street": "Hill St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] } }
+{ "arec": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }, "brec": { "cid": 462, "name": "Margaret Galvis", "age": null, "address": null, "interests": [ "Base Jumping", "Movies", "Movies" ], "children": [ { "name": "Isaac Galvis", "age": 48 }, { "name": "Mei Galvis", "age": null }, { "name": "Asha Galvis", "age": null }, { "name": "Zachery Galvis", "age": null } ] } }
+{ "arec": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }, "brec": { "cid": 666, "name": "Pamila Burzlaff", "age": 68, "address": { "number": 6543, "street": "View St.", "city": "Portland" }, "interests": [ "Squash", "Cigars", "Movies" ], "children": [  ] } }
+{ "arec": { "cid": 18, "name": "Dewayne Ardan", "age": 32, "address": { "number": 8229, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Wine", "Walking", "Bass" ], "children": [ { "name": "Wen Ardan", "age": null }, { "name": "Sachiko Ardan", "age": 11 }, { "name": "Francis Ardan", "age": 20 } ] }, "brec": { "cid": 846, "name": "Kieth Norlund", "age": 15, "address": { "number": 4039, "street": "Park St.", "city": "Mountain View" }, "interests": [ "Wine", "Walking", "Puzzles" ], "children": [ { "name": "Shawn Norlund", "age": null } ] } }
+{ "arec": { "cid": 35, "name": "Saundra Aparo", "age": 86, "address": { "number": 9550, "street": "Lake St.", "city": "Portland" }, "interests": [ "Cigars", "Skiing", "Video Games", "Books" ], "children": [  ] }, "brec": { "cid": 926, "name": "Krishna Barkdull", "age": 31, "address": { "number": 2640, "street": "Cedar St.", "city": "Sunnyvale" }, "interests": [ "Cigars", "Skiing", "Video Games", "Coffee" ], "children": [ { "name": "Nilsa Barkdull", "age": null }, { "name": "Denver Barkdull", "age": 10 }, { "name": "Jenell Barkdull", "age": 15 } ] } }
+{ "arec": { "cid": 51, "name": "Simonne Cape", "age": null, "address": null, "interests": [ "Bass", "Bass", "Books" ], "children": [ { "name": "Leland Cape", "age": null }, { "name": "Gearldine Cape", "age": null } ] }, "brec": { "cid": 232, "name": "Joey Potes", "age": null, "address": null, "interests": [ "Bass", "Bass", "Base Jumping" ], "children": [ { "name": "Bobby Potes", "age": null } ] } }
+{ "arec": { "cid": 51, "name": "Simonne Cape", "age": null, "address": null, "interests": [ "Bass", "Bass", "Books" ], "children": [ { "name": "Leland Cape", "age": null }, { "name": "Gearldine Cape", "age": null } ] }, "brec": { "cid": 412, "name": "Devon Szalai", "age": 26, "address": { "number": 2384, "street": "Lake St.", "city": "Los Angeles" }, "interests": [ "Bass", "Books", "Books" ], "children": [ { "name": "Yolonda Szalai", "age": null }, { "name": "Denita Szalai", "age": null }, { "name": "Priscila Szalai", "age": 10 }, { "name": "Cassondra Szalai", "age": 12 } ] } }
+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 229, "name": "Raymundo Meurin", "age": null, "address": null, "interests": [ "Bass", "Basketball", "Databases" ], "children": [ { "name": "Mariela Meurin", "age": null } ] } }
+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 371, "name": "Agatha Tensley", "age": 13, "address": { "number": 1810, "street": "Hill St.", "city": "San Jose" }, "interests": [ "Bass", "Running", "Movies" ], "children": [ { "name": "Launa Tensley", "age": null } ] } }
+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 387, "name": "Leonard Mabie", "age": 33, "address": { "number": 6703, "street": "View St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Walking" ], "children": [ { "name": "Jone Mabie", "age": 16 }, { "name": "Claire Mabie", "age": null }, { "name": "Larraine Mabie", "age": null }, { "name": "Corrina Mabie", "age": null } ] } }
+{ "arec": { "cid": 70, "name": "Mellisa Lek", "age": 62, "address": { "number": 4281, "street": "Oak St.", "city": "Mountain View" }, "interests": [ "Bass", "Running", "Databases" ], "children": [  ] }, "brec": { "cid": 424, "name": "Camila Rightmire", "age": 25, "address": { "number": 7542, "street": "Oak St.", "city": "Sunnyvale" }, "interests": [ "Bass", "Running", "Puzzles" ], "children": [ { "name": "Donny Rightmire", "age": 14 }, { "name": "Karlene Rightmire", "age": 10 }, { "name": "Nicholas Rightmire", "age": null }, { "name": "Margareta Rightmire", "age": null } ] } }
+{ "arec": { "cid": 72, "name": "Clarissa Geraldes", "age": 67, "address": { "number": 8248, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Cigars", "Walking", "Databases", "Video Games" ], "children": [ { "name": "Vina Geraldes", "age": 51 } ] }, "brec": { "cid": 919, "name": "Fairy Wansley", "age": 45, "address": { "number": 9020, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Wine", "Walking", "Databases", "Video Games" ], "children": [ { "name": "Marvella Wansley", "age": null }, { "name": "Hisako Wansley", "age": null }, { "name": "Shaunta Wansley", "age": null }, { "name": "Gemma Wansley", "age": 21 } ] } }
+{ "arec": { "cid": 73, "name": "Kelsey Flever", "age": 20, "address": { "number": 3555, "street": "Main St.", "city": "Portland" }, "interests": [ "Tennis", "Puzzles", "Video Games" ], "children": [ { "name": "Isis Flever", "age": null }, { "name": "Gonzalo Flever", "age": null } ] }, "brec": { "cid": 453, "name": "Sherlyn Deadmond", "age": null, "address": null, "interests": [ "Tennis", "Puzzles", "Base Jumping" ], "children": [ { "name": "Torrie Deadmond", "age": 46 }, { "name": "Cleotilde Deadmond", "age": 55 }, { "name": "Garry Deadmond", "age": 34 }, { "name": "Valrie Deadmond", "age": null } ] } }
+{ "arec": { "cid": 73, "name": "Kelsey Flever", "age": 20, "address": { "number": 3555, "street": "Main St.", "city": "Portland" }, "interests": [ "Tennis", "Puzzles", "Video Games" ], "children": [ { "name": "Isis Flever", "age": null }, { "name": "Gonzalo Flever", "age": null } ] }, "brec": { "cid": 734, "name": "Lera Korn", "age": null, "address": null, "interests": [ "Tennis", "Puzzles", "Cigars" ], "children": [ { "name": "Criselda Korn", "age": 37 } ] } }
+{ "arec": { "cid": 77, "name": "Chantal Parriera", "age": 78, "address": { "number": 5967, "street": "Lake St.", "city": "San Jose" }, "interests": [ "Squash", "Movies", "Coffee" ], "children": [  ] }, "brec": { "cid": 909, "name": "Mariko Sharar", "age": null, "address": null, "interests": [ "Squash", "Movies", "Computers" ], "children": [  ] } }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 88, "name": "Courtney Muckleroy", "age": null, "address": null, "interests": [ "Wine", "Movies", "Skiing" ], "children": [ { "name": "Alona Muckleroy", "age": 30 }, { "name": "Flora Muckleroy", "age": 41 }, { "name": "Angel Muckleroy", "age": null }, { "name": "Daniella Muckleroy", "age": null } ] } }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 462, "name": "Margaret Galvis", "age": null, "address": null, "interests": [ "Base Jumping", "Movies", "Movies" ], "children": [ { "name": "Isaac Galvis", "age": 48 }, { "name": "Mei Galvis", "age": null }, { "name": "Asha Galvis", "age": null }, { "name": "Zachery Galvis", "age": null } ] } }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Norine Sultzer", "age": 29 } ] } }
+{ "arec": { "cid": 78, "name": "Wesley Huggler", "age": 80, "address": { "number": 3078, "street": "7th St.", "city": "Los Angeles" }, "interests": [ "Base Jumping", "Movies", "Skiing" ], "children": [ { "name": "Chassidy Huggler", "age": null }, { "name": "Emogene Huggler", "age": null }, { "name": "Cheryle Huggler", "age": null } ] }, "brec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] } }
+{ "arec": { "cid": 84, "name": "Huong Kachel", "age": null, "address": null, "interests": [ "Music", "Tennis", "Base Jumping" ], "children": [ { "name": "Katlyn Kachel", "age": 40 }, { "name": "Sherman Kachel", "age": null }, { "name": "Susana Kachel", "age": 32 } ] }, "brec": { "cid": 326, "name": "Tad Tellers", "age": null, "address": null, "interests": [ "Books", "Tennis", "Base Jumping" ], "children": [ { "name": "Fannie Tellers", "age": null } ] } }
+{ "arec": { "cid": 88, "name": "Courtney Muckleroy", "age": null, "address": null, "interests": [ "Wine", "Movies", "Skiing" ], "children": [ { "name": "Alona Muckleroy", "age": 30 }, { "name": "Flora Muckleroy", "age": 41 }, { "name": "Angel Muckleroy", "age": null }, { "name": "Daniella Muckleroy", "age": null } ] }, "brec": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Norine Sultzer", "age": 29 } ] } }
+{ "arec": { "cid": 88, "name": "Courtney Muckleroy", "age": null, "address": null, "interests": [ "Wine", "Movies", "Skiing" ], "children": [ { "name": "Alona Muckleroy", "age": 30 }, { "name": "Flora Muckleroy", "age": 41 }, { "name": "Angel Muckleroy", "age": null }, { "name": "Daniella Muckleroy", "age": null } ] }, "brec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] } }
+{ "arec": { "cid": 101, "name": "Meaghan Vandel", "age": null, "address": null, "interests": [ "Music", "Base Jumping", "Books" ], "children": [ { "name": "Larissa Vandel", "age": null } ] }, "brec": { "cid": 633, "name": "Shalon Grauberger", "age": 34, "address": { "number": 765, "street": "Washington St.", "city": "Sunnyvale" }, "interests": [ "Music", "Base Jumping", "Tennis" ], "children": [ { "name": "Kris Grauberger", "age": 14 }, { "name": "Stuart Grauberger", "age": 12 }, { "name": "Billy Grauberger", "age": null } ] } }
+{ "arec": { "cid": 101, "name": "Meaghan Vandel", "age": null, "address": null, "interests": [ "Music", "Base Jumping", "Books" ], "children": [ { "name": "Larissa Vandel", "age": null } ] }, "brec": { "cid": 967, "name": "Melida Laliotis", "age": null, "address": null, "interests": [ "Music", "Base Jumping", "Coffee", "Books" ], "children": [ { "name": "Lai Laliotis", "age": 52 }, { "name": "Jillian Laliotis", "age": 11 } ] } }
+{ "arec": { "cid": 115, "name": "Jason Oakden", "age": 89, "address": { "number": 8182, "street": "Park St.", "city": "Los Angeles" }, "interests": [ "Music", "Basketball", "Movies" ], "children": [ { "name": "Johnson Oakden", "age": null }, { "name": "Neva Oakden", "age": null }, { "name": "Juliann Oakden", "age": null }, { "name": "Elmer Oakden", "age": null } ] }, "brec": { "cid": 827, "name": "Clementina Papin", "age": null, "address": null, "interests": [ "Music", "Basketball", "Cigars" ], "children": [ { "name": "Catina Papin", "age": null }, { "name": "Demetrius Papin", "age": 59 }, { "name": "Marylou Papin", "age": 12 }, { "name": "Apryl Papin", "age": 16 } ] } }
+{ "arec": { "cid": 120, "name": "Jan Gianandrea", "age": null, "address": null, "interests": [ "Databases", "Movies", "Cigars" ], "children": [ { "name": "Keesha Gianandrea", "age": null }, { "name": "Vashti Gianandrea", "age": 35 }, { "name": "Larry Gianandrea", "age": 29 } ] }, "brec": { "cid": 397, "name": "Blake Kealy", "age": 34, "address": { "number": 2156, "street": "Cedar St.", "city": "Los Angeles" }, "interests": [ "Databases", "Wine", "Cigars" ], "children": [ { "name": "Lorenza Kealy", "age": null }, { "name": "Beula Kealy", "age": 15 }, { "name": "Kristofer Kealy", "age": null }, { "name": "Shayne Kealy", "age": null } ] } }
+{ "arec": { "cid": 120, "name": "Jan Gianandrea", "age": null, "address": null, "interests": [ "Databases", "Movies", "Cigars" ], "children": [ { "name": "Keesha Gianandrea", "age": null }, { "name": "Vashti Gianandrea", "age": 35 }, { "name": "Larry Gianandrea", "age": 29 } ] }, "brec": { "cid": 636, "name": "Babara Shore", "age": 83, "address": { "number": 9452, "street": "Oak St.", "city": "Los Angeles" }, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Candy Shore", "age": 58 }, { "name": "Nanci Shore", "age": null }, { "name": "Asia Shore", "age": null } ] } }
+{ "arec": { "cid": 120, "name": "Jan Gianandrea", "age": null, "address": null, "interests": [ "Databases", "Movies", "Cigars" ], "children": [ { "name": "Keesha Gianandrea", "age": null }, { "name": "Vashti Gianandrea", "age": 35 }, { "name": "Larry Gianandrea", "age": 29 } ] }, "brec": { "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] } }
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+{ "arec": { "cid": 496, "name": "Lonna Starkweather", "age": 80, "address": { "number": 1162, "street": "Lake St.", "city": "Sunnyvale" }, "interests": [ "Coffee", "Bass", "Running" ], "children": [ { "name": "Matilda Starkweather", "age": null } ] }, "brec": { "cid": 580, "name": "Liana Gabbert", "age": null, "address": null, "interests": [ "Coffee", "Tennis", "Bass", "Running" ], "children": [  ] } }
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+{ "arec": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": [ "Coffee", "Movies", "Skiing" ], "children": [ { "name": "Elisha Crepps", "age": null } ] }, "brec": { "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": [ "Coffee", "Movies", "Squash" ], "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] } }
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+{ "arec": { "cid": 908, "name": "Ferdinand Auila", "age": 82, "address": { "number": 1071, "street": "Lake St.", "city": "Portland" }, "interests": [ "Base Jumping", "Running", "Wine" ], "children": [ { "name": "Ai Auila", "age": 69 }, { "name": "Laurel Auila", "age": null } ] }, "brec": { "cid": 948, "name": "Thad Scialpi", "age": 22, "address": { "number": 8731, "street": "Washington St.", "city": "Portland" }, "interests": [ "Base Jumping", "Tennis", "Wine" ], "children": [ { "name": "Harlan Scialpi", "age": 10 }, { "name": "Lucile Scialpi", "age": 11 }, { "name": "Audria Scialpi", "age": null } ] } }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.adm
new file mode 100644
index 0000000..1db0814
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard-inline/olist-jaccard-inline.1.adm
@@ -0,0 +1,115 @@
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+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 215, "name": "Ashton Schadegg", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ciara Schadegg", "age": null }, { "name": "Karisa Schadegg", "age": 11 }, { "name": "Hayden Schadegg", "age": 44 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 228, "name": "Donnette Brumbley", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Madlyn Brumbley", "age": null }, { "name": "Apolonia Brumbley", "age": 13 }, { "name": "Stephine Brumbley", "age": null }, { "name": "Zelma Brumbley", "age": 51 } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }, "b": { "cid": 607, "name": "Bert Garigliano", "age": 71, "address": { "number": 3881, "street": "Washington St.", "city": "San Jose" }, "interests": [ "Walking", "Wine" ], "children": [ { "name": "Junior Garigliano", "age": 42 }, { "name": "Willa Garigliano", "age": 21 }, { "name": "Carlo Garigliano", "age": null } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Music" ], "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 501, "name": "Alyce Coant", "age": null, "address": null, "interests": [ "Music", "Base Jumping" ], "children": [ { "name": "Elyse Coant", "age": 50 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": [ "Fishing", "Video Games" ], "children": [  ] }, "b": { "cid": 519, "name": "Julianna Goodsell", "age": 59, "address": { "number": 5594, "street": "Lake St.", "city": "Seattle" }, "interests": [ "Video Games", "Fishing" ], "children": [  ] }, "jacc": 1.0f }
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+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 493, "name": "Lindsey Trout", "age": 86, "address": { "number": 7619, "street": "Cedar St.", "city": "Portland" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Madlyn Trout", "age": 58 }, { "name": "Amie Trout", "age": 72 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 182, "name": "Christiana Westlie", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Ilda Westlie", "age": 18 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Bass", "Skiing" ], "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 106, "name": "Charles Verna", "age": null, "address": null, "interests": [ "Bass", "Books" ], "children": [ { "name": "Betsy Verna", "age": 37 }, { "name": "Chae Verna", "age": 35 }, { "name": "Naoma Verna", "age": 42 } ] }, "b": { "cid": 523, "name": "Johanne Huls", "age": null, "address": null, "interests": [ "Books", "Bass" ], "children": [ { "name": "Melynda Huls", "age": null }, { "name": "Vicky Huls", "age": 16 }, { "name": "Charlott Huls", "age": null } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 877, "name": "Nicki Lipkind", "age": null, "address": null, "interests": [ "Books", "Movies" ], "children": [ { "name": "Yahaira Lipkind", "age": 12 } ] }, "b": { "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": [ "Movies", "Books" ], "children": [ { "name": "Kerri Malcomson", "age": null } ] }, "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard/olist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard/olist-jaccard.1.adm
new file mode 100644
index 0000000..59a4a42
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/olist-jaccard/olist-jaccard.1.adm
@@ -0,0 +1,115 @@
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+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 215, "name": "Ashton Schadegg", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ciara Schadegg", "age": null }, { "name": "Karisa Schadegg", "age": 11 }, { "name": "Hayden Schadegg", "age": 44 } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 228, "name": "Donnette Brumbley", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Madlyn Brumbley", "age": null }, { "name": "Apolonia Brumbley", "age": 13 }, { "name": "Stephine Brumbley", "age": null }, { "name": "Zelma Brumbley", "age": 51 } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] } }
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+{ "a": { "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": [ "Wine", "Walking" ], "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }, "b": { "cid": 607, "name": "Bert Garigliano", "age": 71, "address": { "number": 3881, "street": "Washington St.", "city": "San Jose" }, "interests": [ "Walking", "Wine" ], "children": [ { "name": "Junior Garigliano", "age": 42 }, { "name": "Willa Garigliano", "age": 21 }, { "name": "Carlo Garigliano", "age": null } ] } }
+{ "a": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] }, "b": { "cid": 156, "name": "Bobbye Kauppi", "age": 79, "address": { "number": 2051, "street": "Hill St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Cigars", "Movies" ], "children": [  ] } }
+{ "a": { "cid": 27, "name": "Hollie Hyun", "age": null, "address": null, "interests": [ "Skiing", "Walking" ], "children": [ { "name": "Morton Hyun", "age": null }, { "name": "Farrah Hyun", "age": 40 }, { "name": "Ali Hyun", "age": null } ] }, "b": { "cid": 542, "name": "Eveline Smedley", "age": 50, "address": { "number": 5513, "street": "Oak St.", "city": "San Jose" }, "interests": [ "Skiing", "Walking" ], "children": [ { "name": "Lynsey Smedley", "age": 26 } ] } }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Music" ], "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 304, "name": "Francine Reddin", "age": 39, "address": { "number": 9392, "street": "Hill St.", "city": "Seattle" }, "interests": [ "Music", "Base Jumping" ], "children": [ { "name": "Millicent Reddin", "age": null } ] } }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": [ "Base Jumping", "Music" ], "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 501, "name": "Alyce Coant", "age": null, "address": null, "interests": [ "Music", "Base Jumping" ], "children": [ { "name": "Elyse Coant", "age": 50 } ] } }
+{ "a": { "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": [ "Fishing", "Video Games" ], "children": [  ] }, "b": { "cid": 519, "name": "Julianna Goodsell", "age": 59, "address": { "number": 5594, "street": "Lake St.", "city": "Seattle" }, "interests": [ "Video Games", "Fishing" ], "children": [  ] } }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 393, "name": "Rossana Monton", "age": 34, "address": { "number": 4490, "street": "Main St.", "city": "Portland" }, "interests": [ "Skiing", "Base Jumping" ], "children": [ { "name": "Glayds Monton", "age": null }, { "name": "Lily Monton", "age": null }, { "name": "Raina Monton", "age": null }, { "name": "Hilma Monton", "age": null } ] } }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 493, "name": "Lindsey Trout", "age": 86, "address": { "number": 7619, "street": "Cedar St.", "city": "Portland" }, "interests": [ "Base Jumping", "Skiing" ], "children": [ { "name": "Madlyn Trout", "age": 58 }, { "name": "Amie Trout", "age": 72 } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 182, "name": "Christiana Westlie", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Ilda Westlie", "age": 18 } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Bass", "Skiing" ], "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] } }
+{ "a": { "cid": 42, "name": "Asley Simco", "age": 38, "address": { "number": 3322, "street": "Main St.", "city": "Mountain View" }, "interests": [ "Fishing", "Running", "Cigars" ], "children": [ { "name": "Micheal Simco", "age": null }, { "name": "Lawerence Simco", "age": null } ] }, "b": { "cid": 753, "name": "Maris Bannett", "age": null, "address": null, "interests": [ "Fishing", "Cigars", "Running" ], "children": [ { "name": "Libbie Bannett", "age": 11 }, { "name": "Francina Bannett", "age": 21 }, { "name": "Tuyet Bannett", "age": null }, { "name": "Zona Bannett", "age": 32 } ] } }
+{ "a": { "cid": 56, "name": "Andria Killelea", "age": null, "address": null, "interests": [ "Cigars", "Skiing" ], "children": [  ] }, "b": { "cid": 857, "name": "Kasie Fujioka", "age": null, "address": null, "interests": [ "Skiing", "Cigars" ], "children": [ { "name": "Leontine Fujioka", "age": null }, { "name": "Nga Fujioka", "age": 21 }, { "name": "Nathanael Fujioka", "age": 27 } ] } }
+{ "a": { "cid": 71, "name": "Alva Sieger", "age": null, "address": null, "interests": [ "Movies", "Walking" ], "children": [ { "name": "Renetta Sieger", "age": null }, { "name": "Shiloh Sieger", "age": 57 }, { "name": "Lavina Sieger", "age": null }, { "name": "Larraine Sieger", "age": null } ] }, "b": { "cid": 758, "name": "Akiko Hoenstine", "age": 56, "address": { "number": 8888, "street": "Lake St.", "city": "Portland" }, "interests": [ "Movies", "Walking" ], "children": [ { "name": "Maren Hoenstine", "age": null }, { "name": "Tyler Hoenstine", "age": null }, { "name": "Jesse Hoenstine", "age": 40 } ] } }
+{ "a": { "cid": 74, "name": "Lonnie Ercolani", "age": 79, "address": { "number": 2655, "street": "Lake St.", "city": "Los Angeles" }, "interests": [ "Music", "Coffee" ], "children": [ { "name": "Cassi Ercolani", "age": null } ] }, "b": { "cid": 325, "name": "Ai Tarleton", "age": null, "address": null, "interests": [ "Coffee", "Music" ], "children": [ { "name": "Risa Tarleton", "age": 24 }, { "name": "Leonila Tarleton", "age": null }, { "name": "Thomasina Tarleton", "age": null } ] } }
+{ "a": { "cid": 76, "name": "Opal Blewett", "age": null, "address": null, "interests": [ "Running", "Coffee", "Fishing" ], "children": [ { "name": "Violette Blewett", "age": null } ] }, "b": { "cid": 455, "name": "Manual Altizer", "age": 70, "address": { "number": 6293, "street": "7th St.", "city": "Portland" }, "interests": [ "Running", "Fishing", "Coffee" ], "children": [ { "name": "Katherine Altizer", "age": null } ] } }
+{ "a": { "cid": 77, "name": "Chantal Parriera", "age": 78, "address": { "number": 5967, "street": "Lake St.", "city": "San Jose" }, "interests": [ "Squash", "Movies", "Coffee" ], "children": [  ] }, "b": { "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": [ "Coffee", "Movies", "Squash" ], "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] } }
+{ "a": { "cid": 84, "name": "Huong Kachel", "age": null, "address": null, "interests": [ "Music", "Tennis", "Base Jumping" ], "children": [ { "name": "Katlyn Kachel", "age": 40 }, { "name": "Sherman Kachel", "age": null }, { "name": "Susana Kachel", "age": 32 } ] }, "b": { "cid": 633, "name": "Shalon Grauberger", "age": 34, "address": { "number": 765, "street": "Washington St.", "city": "Sunnyvale" }, "interests": [ "Music", "Base Jumping", "Tennis" ], "children": [ { "name": "Kris Grauberger", "age": 14 }, { "name": "Stuart Grauberger", "age": 12 }, { "name": "Billy Grauberger", "age": null } ] } }
+{ "a": { "cid": 101, "name": "Meaghan Vandel", "age": null, "address": null, "interests": [ "Music", "Base Jumping", "Books" ], "children": [ { "name": "Larissa Vandel", "age": null } ] }, "b": { "cid": 289, "name": "Clarence Milette", "age": 16, "address": { "number": 3778, "street": "Oak St.", "city": "Seattle" }, "interests": [ "Books", "Base Jumping", "Music" ], "children": [  ] } }
+{ "a": { "cid": 106, "name": "Charles Verna", "age": null, "address": null, "interests": [ "Bass", "Books" ], "children": [ { "name": "Betsy Verna", "age": 37 }, { "name": "Chae Verna", "age": 35 }, { "name": "Naoma Verna", "age": 42 } ] }, "b": { "cid": 394, "name": "Lizette Roux", "age": 57, "address": { "number": 458, "street": "Hill St.", "city": "Los Angeles" }, "interests": [ "Bass", "Books" ], "children": [ { "name": "Doloris Roux", "age": null } ] } }
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+{ "a": { "cid": 228, "name": "Donnette Brumbley", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Madlyn Brumbley", "age": null }, { "name": "Apolonia Brumbley", "age": 13 }, { "name": "Stephine Brumbley", "age": null }, { "name": "Zelma Brumbley", "age": 51 } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] } }
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+{ "a": { "cid": 620, "name": "Arielle Mackellar", "age": null, "address": null, "interests": [ "Cooking", "Bass" ], "children": [ { "name": "Evelin Mackellar", "age": 17 }, { "name": "Theresa Mackellar", "age": 53 }, { "name": "Ronnie Mackellar", "age": null }, { "name": "Elwanda Mackellar", "age": 54 } ] }, "b": { "cid": 761, "name": "Adele Henrikson", "age": null, "address": null, "interests": [ "Cooking", "Bass" ], "children": [ { "name": "Paulina Henrikson", "age": null }, { "name": "David Henrikson", "age": null }, { "name": "Jose Henrikson", "age": null }, { "name": "Meg Henrikson", "age": null } ] } }
+{ "a": { "cid": 636, "name": "Babara Shore", "age": 83, "address": { "number": 9452, "street": "Oak St.", "city": "Los Angeles" }, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Candy Shore", "age": 58 }, { "name": "Nanci Shore", "age": null }, { "name": "Asia Shore", "age": null } ] }, "b": { "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": [ "Databases", "Movies", "Tennis" ], "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] } }
+{ "a": { "cid": 646, "name": "Pablo Catterton", "age": null, "address": null, "interests": [ "Fishing", "Computers" ], "children": [  ] }, "b": { "cid": 781, "name": "Christy Darcangelo", "age": 42, "address": { "number": 2178, "street": "Washington St.", "city": "Portland" }, "interests": [ "Computers", "Fishing" ], "children": [ { "name": "Luis Darcangelo", "age": 21 }, { "name": "Omega Darcangelo", "age": 26 }, { "name": "Remedios Darcangelo", "age": 28 }, { "name": "Domenic Darcangelo", "age": 21 } ] } }
+{ "a": { "cid": 647, "name": "Jodi Dearson", "age": null, "address": null, "interests": [ "Fishing", "Movies" ], "children": [  ] }, "b": { "cid": 884, "name": "Laila Marta", "age": null, "address": null, "interests": [ "Fishing", "Movies" ], "children": [ { "name": "Carlota Marta", "age": 19 } ] } }
+{ "a": { "cid": 704, "name": "Melodee Clemons", "age": null, "address": null, "interests": [ "Base Jumping", "Tennis", "Video Games" ], "children": [ { "name": "Doreatha Clemons", "age": 22 } ] }, "b": { "cid": 812, "name": "Bee Godette", "age": 26, "address": { "number": 1757, "street": "Washington St.", "city": "Portland" }, "interests": [ "Video Games", "Base Jumping", "Tennis" ], "children": [ { "name": "Madaline Godette", "age": 10 }, { "name": "Shasta Godette", "age": 15 }, { "name": "Parthenia Godette", "age": 11 }, { "name": "Priscila Godette", "age": 13 } ] } }
+{ "a": { "cid": 716, "name": "Deirdre Bruderer", "age": null, "address": null, "interests": [ "Computers", "Wine" ], "children": [ { "name": "Coralee Bruderer", "age": null }, { "name": "Mina Bruderer", "age": null }, { "name": "Lindsey Bruderer", "age": 35 }, { "name": "Yi Bruderer", "age": null } ] }, "b": { "cid": 890, "name": "Janise Maccarthy", "age": 66, "address": { "number": 7337, "street": "Main St.", "city": "San Jose" }, "interests": [ "Wine", "Computers" ], "children": [  ] } }
+{ "a": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": [ "Skiing", "Bass" ], "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": [ "Bass", "Skiing" ], "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] } }
+{ "a": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": [ "Music", "Databases" ], "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": [ "Databases", "Music" ], "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] } }
+{ "a": { "cid": 741, "name": "Lesia Risatti", "age": 48, "address": { "number": 7378, "street": "Cedar St.", "city": "Portland" }, "interests": [ "Fishing", "Wine", "Databases" ], "children": [ { "name": "Tangela Risatti", "age": null }, { "name": "Leonel Risatti", "age": 33 }, { "name": "Cythia Risatti", "age": 36 } ] }, "b": { "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": [ "Databases", "Fishing", "Wine" ], "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] } }
+{ "a": { "cid": 877, "name": "Nicki Lipkind", "age": null, "address": null, "interests": [ "Books", "Movies" ], "children": [ { "name": "Yahaira Lipkind", "age": 12 } ] }, "b": { "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": [ "Movies", "Books" ], "children": [ { "name": "Kerri Malcomson", "age": null } ] } }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.adm
new file mode 100644
index 0000000..22e1770
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard-inline/ulist-jaccard-inline.1.adm
@@ -0,0 +1,115 @@
+{ "a": { "cid": 2, "name": "Elin Debell", "age": 82, "address": { "number": 5649, "street": "Hill St.", "city": "Portland" }, "interests": {{ "Bass", "Wine" }}, "children": [ { "name": "Elvina Debell", "age": null }, { "name": "Renaldo Debell", "age": 51 }, { "name": "Divina Debell", "age": 57 } ] }, "b": { "cid": 897, "name": "Gerald Roehrman", "age": null, "address": null, "interests": {{ "Bass", "Wine" }}, "children": [ { "name": "Virgie Roehrman", "age": 28 }, { "name": "Akiko Roehrman", "age": 59 }, { "name": "Robbie Roehrman", "age": 10 }, { "name": "Flavia Roehrman", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 215, "name": "Ashton Schadegg", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ciara Schadegg", "age": null }, { "name": "Karisa Schadegg", "age": 11 }, { "name": "Hayden Schadegg", "age": 44 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 228, "name": "Donnette Brumbley", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Madlyn Brumbley", "age": null }, { "name": "Apolonia Brumbley", "age": 13 }, { "name": "Stephine Brumbley", "age": null }, { "name": "Zelma Brumbley", "age": 51 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }, "b": { "cid": 389, "name": "Loraine Morfee", "age": 72, "address": { "number": 2945, "street": "Lake St.", "city": "Seattle" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Berry Morfee", "age": 30 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }, "b": { "cid": 607, "name": "Bert Garigliano", "age": 71, "address": { "number": 3881, "street": "Washington St.", "city": "San Jose" }, "interests": {{ "Walking", "Wine" }}, "children": [ { "name": "Junior Garigliano", "age": 42 }, { "name": "Willa Garigliano", "age": 21 }, { "name": "Carlo Garigliano", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": {{ "Base Jumping", "Cigars", "Movies" }}, "children": [  ] }, "b": { "cid": 156, "name": "Bobbye Kauppi", "age": 79, "address": { "number": 2051, "street": "Hill St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Cigars", "Movies" }}, "children": [  ] }, "jacc": 1.0f }
+{ "a": { "cid": 27, "name": "Hollie Hyun", "age": null, "address": null, "interests": {{ "Skiing", "Walking" }}, "children": [ { "name": "Morton Hyun", "age": null }, { "name": "Farrah Hyun", "age": 40 }, { "name": "Ali Hyun", "age": null } ] }, "b": { "cid": 542, "name": "Eveline Smedley", "age": 50, "address": { "number": 5513, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Skiing", "Walking" }}, "children": [ { "name": "Lynsey Smedley", "age": 26 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Music" }}, "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 304, "name": "Francine Reddin", "age": 39, "address": { "number": 9392, "street": "Hill St.", "city": "Seattle" }, "interests": {{ "Music", "Base Jumping" }}, "children": [ { "name": "Millicent Reddin", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Music" }}, "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 501, "name": "Alyce Coant", "age": null, "address": null, "interests": {{ "Music", "Base Jumping" }}, "children": [ { "name": "Elyse Coant", "age": 50 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": {{ "Fishing", "Video Games" }}, "children": [  ] }, "b": { "cid": 519, "name": "Julianna Goodsell", "age": 59, "address": { "number": 5594, "street": "Lake St.", "city": "Seattle" }, "interests": {{ "Video Games", "Fishing" }}, "children": [  ] }, "jacc": 1.0f }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 393, "name": "Rossana Monton", "age": 34, "address": { "number": 4490, "street": "Main St.", "city": "Portland" }, "interests": {{ "Skiing", "Base Jumping" }}, "children": [ { "name": "Glayds Monton", "age": null }, { "name": "Lily Monton", "age": null }, { "name": "Raina Monton", "age": null }, { "name": "Hilma Monton", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 493, "name": "Lindsey Trout", "age": 86, "address": { "number": 7619, "street": "Cedar St.", "city": "Portland" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Madlyn Trout", "age": 58 }, { "name": "Amie Trout", "age": 72 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 182, "name": "Christiana Westlie", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Ilda Westlie", "age": 18 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": {{ "Bass", "Skiing" }}, "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 42, "name": "Asley Simco", "age": 38, "address": { "number": 3322, "street": "Main St.", "city": "Mountain View" }, "interests": {{ "Fishing", "Running", "Cigars" }}, "children": [ { "name": "Micheal Simco", "age": null }, { "name": "Lawerence Simco", "age": null } ] }, "b": { "cid": 753, "name": "Maris Bannett", "age": null, "address": null, "interests": {{ "Fishing", "Cigars", "Running" }}, "children": [ { "name": "Libbie Bannett", "age": 11 }, { "name": "Francina Bannett", "age": 21 }, { "name": "Tuyet Bannett", "age": null }, { "name": "Zona Bannett", "age": 32 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 56, "name": "Andria Killelea", "age": null, "address": null, "interests": {{ "Cigars", "Skiing" }}, "children": [  ] }, "b": { "cid": 857, "name": "Kasie Fujioka", "age": null, "address": null, "interests": {{ "Skiing", "Cigars" }}, "children": [ { "name": "Leontine Fujioka", "age": null }, { "name": "Nga Fujioka", "age": 21 }, { "name": "Nathanael Fujioka", "age": 27 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 71, "name": "Alva Sieger", "age": null, "address": null, "interests": {{ "Movies", "Walking" }}, "children": [ { "name": "Renetta Sieger", "age": null }, { "name": "Shiloh Sieger", "age": 57 }, { "name": "Lavina Sieger", "age": null }, { "name": "Larraine Sieger", "age": null } ] }, "b": { "cid": 758, "name": "Akiko Hoenstine", "age": 56, "address": { "number": 8888, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Movies", "Walking" }}, "children": [ { "name": "Maren Hoenstine", "age": null }, { "name": "Tyler Hoenstine", "age": null }, { "name": "Jesse Hoenstine", "age": 40 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 74, "name": "Lonnie Ercolani", "age": 79, "address": { "number": 2655, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Music", "Coffee" }}, "children": [ { "name": "Cassi Ercolani", "age": null } ] }, "b": { "cid": 325, "name": "Ai Tarleton", "age": null, "address": null, "interests": {{ "Coffee", "Music" }}, "children": [ { "name": "Risa Tarleton", "age": 24 }, { "name": "Leonila Tarleton", "age": null }, { "name": "Thomasina Tarleton", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 76, "name": "Opal Blewett", "age": null, "address": null, "interests": {{ "Running", "Coffee", "Fishing" }}, "children": [ { "name": "Violette Blewett", "age": null } ] }, "b": { "cid": 455, "name": "Manual Altizer", "age": 70, "address": { "number": 6293, "street": "7th St.", "city": "Portland" }, "interests": {{ "Running", "Fishing", "Coffee" }}, "children": [ { "name": "Katherine Altizer", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 77, "name": "Chantal Parriera", "age": 78, "address": { "number": 5967, "street": "Lake St.", "city": "San Jose" }, "interests": {{ "Squash", "Movies", "Coffee" }}, "children": [  ] }, "b": { "cid": 984, "name": "Janett Kitchens", "age": 66, "address": { "number": 7558, "street": "View St.", "city": "Mountain View" }, "interests": {{ "Coffee", "Movies", "Squash" }}, "children": [ { "name": "Grayce Kitchens", "age": 14 }, { "name": "Dwayne Kitchens", "age": null }, { "name": "Wilber Kitchens", "age": 51 }, { "name": "Nancey Kitchens", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 84, "name": "Huong Kachel", "age": null, "address": null, "interests": {{ "Music", "Tennis", "Base Jumping" }}, "children": [ { "name": "Katlyn Kachel", "age": 40 }, { "name": "Sherman Kachel", "age": null }, { "name": "Susana Kachel", "age": 32 } ] }, "b": { "cid": 633, "name": "Shalon Grauberger", "age": 34, "address": { "number": 765, "street": "Washington St.", "city": "Sunnyvale" }, "interests": {{ "Music", "Base Jumping", "Tennis" }}, "children": [ { "name": "Kris Grauberger", "age": 14 }, { "name": "Stuart Grauberger", "age": 12 }, { "name": "Billy Grauberger", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 101, "name": "Meaghan Vandel", "age": null, "address": null, "interests": {{ "Music", "Base Jumping", "Books" }}, "children": [ { "name": "Larissa Vandel", "age": null } ] }, "b": { "cid": 289, "name": "Clarence Milette", "age": 16, "address": { "number": 3778, "street": "Oak St.", "city": "Seattle" }, "interests": {{ "Books", "Base Jumping", "Music" }}, "children": [  ] }, "jacc": 1.0f }
+{ "a": { "cid": 106, "name": "Charles Verna", "age": null, "address": null, "interests": {{ "Bass", "Books" }}, "children": [ { "name": "Betsy Verna", "age": 37 }, { "name": "Chae Verna", "age": 35 }, { "name": "Naoma Verna", "age": 42 } ] }, "b": { "cid": 394, "name": "Lizette Roux", "age": 57, "address": { "number": 458, "street": "Hill St.", "city": "Los Angeles" }, "interests": {{ "Bass", "Books" }}, "children": [ { "name": "Doloris Roux", "age": null } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 560, "name": "Karin Dicesare", "age": null, "address": null, "interests": {{ "Wine", "Puzzles" }}, "children": [  ] }, "b": { "cid": 583, "name": "Bev Yerena", "age": null, "address": null, "interests": {{ "Puzzles", "Wine" }}, "children": [ { "name": "Larhonda Yerena", "age": 45 }, { "name": "Josefina Yerena", "age": null }, { "name": "Sydney Yerena", "age": 42 } ] }, "jacc": 1.0f }
+{ "a": { "cid": 570, "name": "Lee Basora", "age": null, "address": null, "interests": {{ "Squash", "Cigars" }}, "children": [  ] }, "b": { "cid": 819, "name": "Twanna Finnley", "age": null, "address": null, "interests": {{ "Squash", "Cigars" }}, "children": [ { "name": "Reba Finnley", "age": null }, { "name": "Moises Finnley", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 620, "name": "Arielle Mackellar", "age": null, "address": null, "interests": {{ "Cooking", "Bass" }}, "children": [ { "name": "Evelin Mackellar", "age": 17 }, { "name": "Theresa Mackellar", "age": 53 }, { "name": "Ronnie Mackellar", "age": null }, { "name": "Elwanda Mackellar", "age": 54 } ] }, "b": { "cid": 761, "name": "Adele Henrikson", "age": null, "address": null, "interests": {{ "Cooking", "Bass" }}, "children": [ { "name": "Paulina Henrikson", "age": null }, { "name": "David Henrikson", "age": null }, { "name": "Jose Henrikson", "age": null }, { "name": "Meg Henrikson", "age": null } ] }, "jacc": 1.0f }
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+{ "a": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 741, "name": "Lesia Risatti", "age": 48, "address": { "number": 7378, "street": "Cedar St.", "city": "Portland" }, "interests": {{ "Fishing", "Wine", "Databases" }}, "children": [ { "name": "Tangela Risatti", "age": null }, { "name": "Leonel Risatti", "age": 33 }, { "name": "Cythia Risatti", "age": 36 } ] }, "b": { "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": {{ "Databases", "Fishing", "Wine" }}, "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] }, "jacc": 1.0f }
+{ "a": { "cid": 877, "name": "Nicki Lipkind", "age": null, "address": null, "interests": {{ "Books", "Movies" }}, "children": [ { "name": "Yahaira Lipkind", "age": 12 } ] }, "b": { "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": {{ "Movies", "Books" }}, "children": [ { "name": "Kerri Malcomson", "age": null } ] }, "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard/ulist-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard/ulist-jaccard.1.adm
new file mode 100644
index 0000000..582b5db
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/ulist-jaccard/ulist-jaccard.1.adm
@@ -0,0 +1,115 @@
+{ "a": { "cid": 2, "name": "Elin Debell", "age": 82, "address": { "number": 5649, "street": "Hill St.", "city": "Portland" }, "interests": {{ "Bass", "Wine" }}, "children": [ { "name": "Elvina Debell", "age": null }, { "name": "Renaldo Debell", "age": 51 }, { "name": "Divina Debell", "age": 57 } ] }, "b": { "cid": 897, "name": "Gerald Roehrman", "age": null, "address": null, "interests": {{ "Bass", "Wine" }}, "children": [ { "name": "Virgie Roehrman", "age": 28 }, { "name": "Akiko Roehrman", "age": 59 }, { "name": "Robbie Roehrman", "age": 10 }, { "name": "Flavia Roehrman", "age": null } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 215, "name": "Ashton Schadegg", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ciara Schadegg", "age": null }, { "name": "Karisa Schadegg", "age": 11 }, { "name": "Hayden Schadegg", "age": 44 } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 228, "name": "Donnette Brumbley", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Madlyn Brumbley", "age": null }, { "name": "Apolonia Brumbley", "age": 13 }, { "name": "Stephine Brumbley", "age": null }, { "name": "Zelma Brumbley", "age": 51 } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] } }
+{ "a": { "cid": 5, "name": "Heide Naifeh", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Deirdre Naifeh", "age": null }, { "name": "Jacquelyne Naifeh", "age": 39 } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] } }
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+{ "a": { "cid": 11, "name": "Meta Simek", "age": 13, "address": { "number": 4384, "street": "7th St.", "city": "San Jose" }, "interests": {{ "Wine", "Walking" }}, "children": [ { "name": "Oretha Simek", "age": null }, { "name": "Terence Simek", "age": null } ] }, "b": { "cid": 607, "name": "Bert Garigliano", "age": 71, "address": { "number": 3881, "street": "Washington St.", "city": "San Jose" }, "interests": {{ "Walking", "Wine" }}, "children": [ { "name": "Junior Garigliano", "age": 42 }, { "name": "Willa Garigliano", "age": 21 }, { "name": "Carlo Garigliano", "age": null } ] } }
+{ "a": { "cid": 17, "name": "Ingeborg Monkhouse", "age": null, "address": null, "interests": {{ "Base Jumping", "Cigars", "Movies" }}, "children": [  ] }, "b": { "cid": 156, "name": "Bobbye Kauppi", "age": 79, "address": { "number": 2051, "street": "Hill St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Cigars", "Movies" }}, "children": [  ] } }
+{ "a": { "cid": 27, "name": "Hollie Hyun", "age": null, "address": null, "interests": {{ "Skiing", "Walking" }}, "children": [ { "name": "Morton Hyun", "age": null }, { "name": "Farrah Hyun", "age": 40 }, { "name": "Ali Hyun", "age": null } ] }, "b": { "cid": 542, "name": "Eveline Smedley", "age": 50, "address": { "number": 5513, "street": "Oak St.", "city": "San Jose" }, "interests": {{ "Skiing", "Walking" }}, "children": [ { "name": "Lynsey Smedley", "age": 26 } ] } }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Music" }}, "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 304, "name": "Francine Reddin", "age": 39, "address": { "number": 9392, "street": "Hill St.", "city": "Seattle" }, "interests": {{ "Music", "Base Jumping" }}, "children": [ { "name": "Millicent Reddin", "age": null } ] } }
+{ "a": { "cid": 32, "name": "Tia Berkley", "age": 30, "address": { "number": 4507, "street": "Park St.", "city": "Sunnyvale" }, "interests": {{ "Base Jumping", "Music" }}, "children": [ { "name": "Carmon Berkley", "age": null }, { "name": "Kristina Berkley", "age": null }, { "name": "Cristi Berkley", "age": 19 } ] }, "b": { "cid": 501, "name": "Alyce Coant", "age": null, "address": null, "interests": {{ "Music", "Base Jumping" }}, "children": [ { "name": "Elyse Coant", "age": 50 } ] } }
+{ "a": { "cid": 33, "name": "Rayford Velmontes", "age": null, "address": null, "interests": {{ "Fishing", "Video Games" }}, "children": [  ] }, "b": { "cid": 519, "name": "Julianna Goodsell", "age": 59, "address": { "number": 5594, "street": "Lake St.", "city": "Seattle" }, "interests": {{ "Video Games", "Fishing" }}, "children": [  ] } }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 393, "name": "Rossana Monton", "age": 34, "address": { "number": 4490, "street": "Main St.", "city": "Portland" }, "interests": {{ "Skiing", "Base Jumping" }}, "children": [ { "name": "Glayds Monton", "age": null }, { "name": "Lily Monton", "age": null }, { "name": "Raina Monton", "age": null }, { "name": "Hilma Monton", "age": null } ] } }
+{ "a": { "cid": 39, "name": "Brock Froncillo", "age": 72, "address": { "number": 4645, "street": "Cedar St.", "city": "San Jose" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Cole Froncillo", "age": null }, { "name": "Ivana Froncillo", "age": null }, { "name": "Hugh Froncillo", "age": 23 } ] }, "b": { "cid": 493, "name": "Lindsey Trout", "age": 86, "address": { "number": 7619, "street": "Cedar St.", "city": "Portland" }, "interests": {{ "Base Jumping", "Skiing" }}, "children": [ { "name": "Madlyn Trout", "age": 58 }, { "name": "Amie Trout", "age": 72 } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 182, "name": "Christiana Westlie", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Ilda Westlie", "age": 18 } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] } }
+{ "a": { "cid": 41, "name": "Kevin Giottonini", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Victor Giottonini", "age": 37 }, { "name": "Alverta Giottonini", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": {{ "Bass", "Skiing" }}, "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] } }
+{ "a": { "cid": 42, "name": "Asley Simco", "age": 38, "address": { "number": 3322, "street": "Main St.", "city": "Mountain View" }, "interests": {{ "Fishing", "Running", "Cigars" }}, "children": [ { "name": "Micheal Simco", "age": null }, { "name": "Lawerence Simco", "age": null } ] }, "b": { "cid": 753, "name": "Maris Bannett", "age": null, "address": null, "interests": {{ "Fishing", "Cigars", "Running" }}, "children": [ { "name": "Libbie Bannett", "age": 11 }, { "name": "Francina Bannett", "age": 21 }, { "name": "Tuyet Bannett", "age": null }, { "name": "Zona Bannett", "age": 32 } ] } }
+{ "a": { "cid": 56, "name": "Andria Killelea", "age": null, "address": null, "interests": {{ "Cigars", "Skiing" }}, "children": [  ] }, "b": { "cid": 857, "name": "Kasie Fujioka", "age": null, "address": null, "interests": {{ "Skiing", "Cigars" }}, "children": [ { "name": "Leontine Fujioka", "age": null }, { "name": "Nga Fujioka", "age": 21 }, { "name": "Nathanael Fujioka", "age": 27 } ] } }
+{ "a": { "cid": 71, "name": "Alva Sieger", "age": null, "address": null, "interests": {{ "Movies", "Walking" }}, "children": [ { "name": "Renetta Sieger", "age": null }, { "name": "Shiloh Sieger", "age": 57 }, { "name": "Lavina Sieger", "age": null }, { "name": "Larraine Sieger", "age": null } ] }, "b": { "cid": 758, "name": "Akiko Hoenstine", "age": 56, "address": { "number": 8888, "street": "Lake St.", "city": "Portland" }, "interests": {{ "Movies", "Walking" }}, "children": [ { "name": "Maren Hoenstine", "age": null }, { "name": "Tyler Hoenstine", "age": null }, { "name": "Jesse Hoenstine", "age": 40 } ] } }
+{ "a": { "cid": 74, "name": "Lonnie Ercolani", "age": 79, "address": { "number": 2655, "street": "Lake St.", "city": "Los Angeles" }, "interests": {{ "Music", "Coffee" }}, "children": [ { "name": "Cassi Ercolani", "age": null } ] }, "b": { "cid": 325, "name": "Ai Tarleton", "age": null, "address": null, "interests": {{ "Coffee", "Music" }}, "children": [ { "name": "Risa Tarleton", "age": 24 }, { "name": "Leonila Tarleton", "age": null }, { "name": "Thomasina Tarleton", "age": null } ] } }
+{ "a": { "cid": 76, "name": "Opal Blewett", "age": null, "address": null, "interests": {{ "Running", "Coffee", "Fishing" }}, "children": [ { "name": "Violette Blewett", "age": null } ] }, "b": { "cid": 455, "name": "Manual Altizer", "age": 70, "address": { "number": 6293, "street": "7th St.", "city": "Portland" }, "interests": {{ "Running", "Fishing", "Coffee" }}, "children": [ { "name": "Katherine Altizer", "age": null } ] } }
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+{ "a": { "cid": 420, "name": "Coralie Regueira", "age": null, "address": null, "interests": {{ "Books", "Tennis" }}, "children": [ { "name": "Latoyia Regueira", "age": 31 }, { "name": "Obdulia Regueira", "age": 12 }, { "name": "Herlinda Regueira", "age": null } ] }, "b": { "cid": 549, "name": "Kathrin Cruff", "age": 63, "address": { "number": 9002, "street": "Washington St.", "city": "Sunnyvale" }, "interests": {{ "Tennis", "Books" }}, "children": [ { "name": "Candi Cruff", "age": 49 }, { "name": "Barry Cruff", "age": 17 }, { "name": "Shane Cruff", "age": 18 }, { "name": "Brendon Cruff", "age": null } ] } }
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+{ "a": { "cid": 467, "name": "Magali Ingerson", "age": null, "address": null, "interests": {{ "Books", "Base Jumping" }}, "children": [ { "name": "Monty Ingerson", "age": 11 }, { "name": "Noelia Ingerson", "age": 47 }, { "name": "Tennie Ingerson", "age": null }, { "name": "Merrill Ingerson", "age": null } ] }, "b": { "cid": 632, "name": "Keeley Goga", "age": null, "address": null, "interests": {{ "Books", "Base Jumping" }}, "children": [ { "name": "Walter Goga", "age": 39 }, { "name": "Chaya Goga", "age": null }, { "name": "Melodie Goga", "age": null }, { "name": "Isidro Goga", "age": 32 } ] } }
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+{ "a": { "cid": 484, "name": "Bennie Dragaj", "age": null, "address": null, "interests": {{ "Fishing", "Databases", "Wine" }}, "children": [ { "name": "Viva Dragaj", "age": 13 } ] }, "b": { "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": {{ "Databases", "Fishing", "Wine" }}, "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] } }
+{ "a": { "cid": 498, "name": "Arleen Sultzer", "age": null, "address": null, "interests": {{ "Coffee", "Movies", "Skiing" }}, "children": [ { "name": "Norine Sultzer", "age": 29 } ] }, "b": { "cid": 875, "name": "Ramon Crepps", "age": null, "address": null, "interests": {{ "Coffee", "Movies", "Skiing" }}, "children": [ { "name": "Elisha Crepps", "age": null } ] } }
+{ "a": { "cid": 502, "name": "Lawana Mulik", "age": 82, "address": { "number": 3071, "street": "Park St.", "city": "Portland" }, "interests": {{ "Cigars", "Cigars" }}, "children": [ { "name": "Carrie Mulik", "age": null }, { "name": "Sharlene Mulik", "age": 33 }, { "name": "Leone Mulik", "age": 46 } ] }, "b": { "cid": 774, "name": "Nadene Rigel", "age": null, "address": null, "interests": {{ "Cigars", "Cigars" }}, "children": [ { "name": "Rebbeca Rigel", "age": 33 } ] } }
+{ "a": { "cid": 508, "name": "Tiffany Kimmey", "age": 64, "address": { "number": 8625, "street": "7th St.", "city": "Mountain View" }, "interests": {{ "Bass", "Walking" }}, "children": [  ] }, "b": { "cid": 796, "name": "Daniele Brisk", "age": null, "address": null, "interests": {{ "Walking", "Bass" }}, "children": [  ] } }
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+{ "a": { "cid": 513, "name": "Marianna Gortman", "age": 49, "address": { "number": 927, "street": "Cedar St.", "city": "San Jose" }, "interests": {{ "Databases", "Databases" }}, "children": [  ] }, "b": { "cid": 520, "name": "Janay Bernbeck", "age": null, "address": null, "interests": {{ "Databases", "Databases" }}, "children": [ { "name": "Aurea Bernbeck", "age": null }, { "name": "Tiara Bernbeck", "age": null }, { "name": "Alfredia Bernbeck", "age": 26 } ] } }
+{ "a": { "cid": 559, "name": "Carolyne Shiroma", "age": null, "address": null, "interests": {{ "Movies", "Running" }}, "children": [ { "name": "Ying Shiroma", "age": 57 } ] }, "b": { "cid": 681, "name": "Iliana Nagele", "age": null, "address": null, "interests": {{ "Movies", "Running" }}, "children": [ { "name": "Sunny Nagele", "age": 55 }, { "name": "Waltraud Nagele", "age": 39 }, { "name": "Darron Nagele", "age": null } ] } }
+{ "a": { "cid": 560, "name": "Karin Dicesare", "age": null, "address": null, "interests": {{ "Wine", "Puzzles" }}, "children": [  ] }, "b": { "cid": 583, "name": "Bev Yerena", "age": null, "address": null, "interests": {{ "Puzzles", "Wine" }}, "children": [ { "name": "Larhonda Yerena", "age": 45 }, { "name": "Josefina Yerena", "age": null }, { "name": "Sydney Yerena", "age": 42 } ] } }
+{ "a": { "cid": 570, "name": "Lee Basora", "age": null, "address": null, "interests": {{ "Squash", "Cigars" }}, "children": [  ] }, "b": { "cid": 819, "name": "Twanna Finnley", "age": null, "address": null, "interests": {{ "Squash", "Cigars" }}, "children": [ { "name": "Reba Finnley", "age": null }, { "name": "Moises Finnley", "age": null } ] } }
+{ "a": { "cid": 620, "name": "Arielle Mackellar", "age": null, "address": null, "interests": {{ "Cooking", "Bass" }}, "children": [ { "name": "Evelin Mackellar", "age": 17 }, { "name": "Theresa Mackellar", "age": 53 }, { "name": "Ronnie Mackellar", "age": null }, { "name": "Elwanda Mackellar", "age": 54 } ] }, "b": { "cid": 761, "name": "Adele Henrikson", "age": null, "address": null, "interests": {{ "Cooking", "Bass" }}, "children": [ { "name": "Paulina Henrikson", "age": null }, { "name": "David Henrikson", "age": null }, { "name": "Jose Henrikson", "age": null }, { "name": "Meg Henrikson", "age": null } ] } }
+{ "a": { "cid": 636, "name": "Babara Shore", "age": 83, "address": { "number": 9452, "street": "Oak St.", "city": "Los Angeles" }, "interests": {{ "Databases", "Movies", "Tennis" }}, "children": [ { "name": "Candy Shore", "age": 58 }, { "name": "Nanci Shore", "age": null }, { "name": "Asia Shore", "age": null } ] }, "b": { "cid": 992, "name": "Staci Alexandropoul", "age": null, "address": null, "interests": {{ "Databases", "Movies", "Tennis" }}, "children": [ { "name": "Casimira Alexandropoul", "age": null }, { "name": "Kena Alexandropoul", "age": 54 }, { "name": "Ellie Alexandropoul", "age": null }, { "name": "Ambrose Alexandropoul", "age": null } ] } }
+{ "a": { "cid": 646, "name": "Pablo Catterton", "age": null, "address": null, "interests": {{ "Fishing", "Computers" }}, "children": [  ] }, "b": { "cid": 781, "name": "Christy Darcangelo", "age": 42, "address": { "number": 2178, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Computers", "Fishing" }}, "children": [ { "name": "Luis Darcangelo", "age": 21 }, { "name": "Omega Darcangelo", "age": 26 }, { "name": "Remedios Darcangelo", "age": 28 }, { "name": "Domenic Darcangelo", "age": 21 } ] } }
+{ "a": { "cid": 647, "name": "Jodi Dearson", "age": null, "address": null, "interests": {{ "Fishing", "Movies" }}, "children": [  ] }, "b": { "cid": 884, "name": "Laila Marta", "age": null, "address": null, "interests": {{ "Fishing", "Movies" }}, "children": [ { "name": "Carlota Marta", "age": 19 } ] } }
+{ "a": { "cid": 704, "name": "Melodee Clemons", "age": null, "address": null, "interests": {{ "Base Jumping", "Tennis", "Video Games" }}, "children": [ { "name": "Doreatha Clemons", "age": 22 } ] }, "b": { "cid": 812, "name": "Bee Godette", "age": 26, "address": { "number": 1757, "street": "Washington St.", "city": "Portland" }, "interests": {{ "Video Games", "Base Jumping", "Tennis" }}, "children": [ { "name": "Madaline Godette", "age": 10 }, { "name": "Shasta Godette", "age": 15 }, { "name": "Parthenia Godette", "age": 11 }, { "name": "Priscila Godette", "age": 13 } ] } }
+{ "a": { "cid": 716, "name": "Deirdre Bruderer", "age": null, "address": null, "interests": {{ "Computers", "Wine" }}, "children": [ { "name": "Coralee Bruderer", "age": null }, { "name": "Mina Bruderer", "age": null }, { "name": "Lindsey Bruderer", "age": 35 }, { "name": "Yi Bruderer", "age": null } ] }, "b": { "cid": 890, "name": "Janise Maccarthy", "age": 66, "address": { "number": 7337, "street": "Main St.", "city": "San Jose" }, "interests": {{ "Wine", "Computers" }}, "children": [  ] } }
+{ "a": { "cid": 730, "name": "Marti Vandoren", "age": null, "address": null, "interests": {{ "Skiing", "Bass" }}, "children": [ { "name": "Carroll Vandoren", "age": null }, { "name": "Lorretta Vandoren", "age": 30 }, { "name": "Chloe Vandoren", "age": 42 }, { "name": "Ilona Vandoren", "age": null } ] }, "b": { "cid": 982, "name": "Jude Brandsrud", "age": 41, "address": { "number": 7133, "street": "Washington St.", "city": "Seattle" }, "interests": {{ "Bass", "Skiing" }}, "children": [ { "name": "Scottie Brandsrud", "age": null }, { "name": "Gennie Brandsrud", "age": 10 }, { "name": "Agnes Brandsrud", "age": null }, { "name": "Clarinda Brandsrud", "age": 17 } ] } }
+{ "a": { "cid": 731, "name": "Yajaira Orto", "age": null, "address": null, "interests": {{ "Music", "Databases" }}, "children": [ { "name": "Eliz Orto", "age": 17 }, { "name": "Gisela Orto", "age": null } ] }, "b": { "cid": 795, "name": "Sharilyn Branstad", "age": null, "address": null, "interests": {{ "Databases", "Music" }}, "children": [ { "name": "Ashlee Branstad", "age": 24 }, { "name": "Bobbye Branstad", "age": 26 }, { "name": "Natalya Branstad", "age": null }, { "name": "Edith Branstad", "age": null } ] } }
+{ "a": { "cid": 741, "name": "Lesia Risatti", "age": 48, "address": { "number": 7378, "street": "Cedar St.", "city": "Portland" }, "interests": {{ "Fishing", "Wine", "Databases" }}, "children": [ { "name": "Tangela Risatti", "age": null }, { "name": "Leonel Risatti", "age": 33 }, { "name": "Cythia Risatti", "age": 36 } ] }, "b": { "cid": 968, "name": "Alix Levier", "age": 44, "address": { "number": 7241, "street": "Hill St.", "city": "Los Angeles" }, "interests": {{ "Databases", "Fishing", "Wine" }}, "children": [ { "name": "Florentina Levier", "age": null }, { "name": "Hyon Levier", "age": null }, { "name": "Dannielle Levier", "age": null } ] } }
+{ "a": { "cid": 877, "name": "Nicki Lipkind", "age": null, "address": null, "interests": {{ "Books", "Movies" }}, "children": [ { "name": "Yahaira Lipkind", "age": 12 } ] }, "b": { "cid": 974, "name": "Alexis Malcomson", "age": null, "address": null, "interests": {{ "Movies", "Books" }}, "children": [ { "name": "Kerri Malcomson", "age": null } ] } }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/word-jaccard-inline/word-jaccard-inline.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/word-jaccard-inline/word-jaccard-inline.1.adm
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@@ -0,0 +1,5 @@
+{ "arec": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "brec": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 1.0f }
+{ "arec": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "brec": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 1.0f }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 1.0f }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 1.0f }
+{ "arec": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "brec": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." }, "jacc": 1.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/inverted-index-join/word-jaccard/word-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/word-jaccard/word-jaccard.1.adm
new file mode 100644
index 0000000..3550136
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/inverted-index-join/word-jaccard/word-jaccard.1.adm
@@ -0,0 +1,5 @@
+{ "arec": { "id": 5, "dblpid": "books/acm/kim95/DayalHW95", "title": "Active Database Systems.", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2002-01-03 434-456 1995 Modern Database Systems db/books/collections/kim95.html#DayalHW95" }, "brec": { "id": 98, "csxid": "oai CiteSeerXPSU 10.1.1.49.2910", "title": "Active Database Systems", "authors": "Umeshwar Dayal Eric N. Hanson Jennifer Widom", "misc": "2009-04-12 In Won Kim editor Modern Database Systems The Object Model Integrating a production rules facility into a database system provides a uniform mechanism for a number of advanced database features including integrity constraint enforcement, derived data maintenance, triggers, alerters, protection, version control, and others. In addition, a database system with rule processing capabilities provides a useful platform for large and efficient knowledge-base and expert systems. Database systems with production rules are referred to as active database systems, and the field of active database systems has indeed been active. This chapter summarizes current work in active database systems  topics covered include active database rule models and languages, rule execution semantics, and implementation issues.  1 Introduction  Conventional database systems are passive  they only execute queries or transactions explicitly submitted by a user or an application program. For many applications, however, it is important to monitor situations of interest, and to ... CiteSeerX ACM Press 2009-04-12 2007-11-22 1994 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.2910 http //www-db.stanford.edu/pub/papers/book-chapter.ps en 10.1.1.17.1323 10.1.1.143.7196 10.1.1.50.3821 10.1.1.51.9946 10.1.1.41.2030 10.1.1.46.2504 10.1.1.52.4421 10.1.1.38.2083 10.1.1.34.661 10.1.1.103.7630 10.1.1.100.9015 10.1.1.97.1699 10.1.1.107.4220 10.1.1.47.9217 10.1.1.133.7157 10.1.1.101.5051 10.1.1.30.9989 10.1.1.53.6941 10.1.1.50.8529 10.1.1.133.4287 10.1.1.50.7278 10.1.1.10.1688 10.1.1.19.8669 10.1.1.44.7600 10.1.1.144.376 10.1.1.44.1348 10.1.1.47.9998 10.1.1.90.4428 10.1.1.108.344 10.1.1.48.9470 10.1.1.53.5472 10.1.1.52.4872 10.1.1.144.4965 10.1.1.31.7578 10.1.1.32.6426 10.1.1.58.6335 10.1.1.85.8052 10.1.1.93.1931 10.1.1.55.4610 10.1.1.21.3821 10.1.1.26.9208 10.1.1.31.4869 10.1.1.48.1833 10.1.1.83.8628 10.1.1.87.9318 10.1.1.90.2195 10.1.1.36.5184 10.1.1.21.1704 10.1.1.53.1733 10.1.1.90.3181 10.1.1.53.6783 10.1.1.52.6151 10.1.1.104.6911 10.1.1.105.1691 10.1.1.21.1984 10.1.1.23.2775 10.1.1.62.5556 10.1.1.68.9063 10.1.1.74.4746 10.1.1.78.5097 10.1.1.84.743 10.1.1.84.904 10.1.1.87.6019 10.1.1.88.3907 10.1.1.89.9631 10.1.1.90.4147 10.1.1.92.365 10.1.1.100.2747 10.1.1.98.5083 10.1.1.98.6663 10.1.1.99.1894 10.1.1.99.8174 10.1.1.133.8073 10.1.1.52.7823 10.1.1.39.5341 10.1.1.35.3458 10.1.1.26.4620 10.1.1.18.8936 10.1.1.19.3694 10.1.1.12.631 10.1.1.48.6394 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 25, "dblpid": "books/acm/kim95/RusinkiewiczS95", "title": "Specification and Execution of Transactional Workflows.", "authors": "Marek Rusinkiewicz Amit P. Sheth", "misc": "2004-03-08 592-620 Modern Database Systems books/acm/Kim95 db/books/collections/kim95.html#RusinkiewiczS95 1995" }, "brec": { "id": 88, "csxid": "oai CiteSeerXPSU 10.1.1.43.3839", "title": "Specification and Execution of Transactional Workflows", "authors": "Marek Rusinkiewicz Amit Sheth", "misc": "2009-04-13 The basic transaction model has evolved over time to incorporate more complex transaction structures  and to selectively modify the atomicity and isolation properties. In this chapter we discuss the application  of transaction concepts to activities that involve coordinated execution of multiple tasks (possibly of  different types) over different processing entities. Such applications are referred to as transactional  workflows. In this chapter we discuss the specification of such workflows and the issues involved in their  execution.  1 What is a Workflow?  Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities. A task defines some work to be done and can be specified in a number of ways, including a textual description in a file or an email, a form, a message, or a computer program. A processing entity that performs the tasks may be a person or a software system (e.g., a mailer, an application program, a database mana... CiteSeerX ACM Press 2009-04-13 2007-11-22 1995 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.3839 http //lsdis.cs.uga.edu/lib/././download/RS93.ps en 10.1.1.17.1323 10.1.1.59.5051 10.1.1.38.6210 10.1.1.68.7445 10.1.1.109.5175 10.1.1.17.7962 10.1.1.44.7778 10.1.1.112.244 10.1.1.13.7602 10.1.1.102.7874 10.1.1.41.4043 10.1.1.49.5143 10.1.1.41.7252 10.1.1.17.3225 10.1.1.54.7761 10.1.1.55.5255 10.1.1.108.958 10.1.1.35.7733 10.1.1.52.3682 10.1.1.36.1618 10.1.1.45.6317 10.1.1.43.3180 10.1.1.35.8718 10.1.1.44.6365 10.1.1.51.2883 10.1.1.50.9206 10.1.1.6.9085 10.1.1.30.1707 10.1.1.80.6634 10.1.1.49.355 10.1.1.127.3550 10.1.1.35.3562 10.1.1.137.8832 10.1.1.49.4085 10.1.1.41.5506 10.1.1.40.4657 10.1.1.43.2369 10.1.1.40.832 10.1.1.74.5411 10.1.1.90.4428 10.1.1.110.6967 10.1.1.27.2122 10.1.1.15.5605 10.1.1.54.727 10.1.1.49.7512 10.1.1.45.8796 10.1.1.50.5984 10.1.1.53.137 10.1.1.30.3262 10.1.1.28.1680 10.1.1.21.7110 10.1.1.29.3148 10.1.1.57.687 10.1.1.59.5924 10.1.1.46.2812 10.1.1.51.5552 10.1.1.17.7375 10.1.1.40.1598 10.1.1.52.9787 10.1.1.1.3496 10.1.1.50.6791 10.1.1.55.3358 10.1.1.137.7582 10.1.1.118.4127 10.1.1.49.3580 10.1.1.35.5825 10.1.1.46.9382 10.1.1.31.7411 10.1.1.48.5504 10.1.1.55.5163 10.1.1.18.1603 10.1.1.52.8129 10.1.1.1.9723 10.1.1.21.9113 10.1.1.49.7644 10.1.1.52.6646 10.1.1.75.3106 10.1.1.80.2072 10.1.1.55.8770 10.1.1.54.8188 10.1.1.101.7919 10.1.1.104.8176 10.1.1.24.5741 10.1.1.29.4667 10.1.1.4.1055 10.1.1.48.9175 10.1.1.56.792 10.1.1.65.3172 10.1.1.66.5947 10.1.1.73.8532 10.1.1.83.8299 10.1.1.86.8521 10.1.1.87.2402 10.1.1.87.4648 10.1.1.90.5638 10.1.1.91.1709 10.1.1.94.4248 10.1.1.114.511 10.1.1.119.5037 10.1.1.124.7957 10.1.1.49.215 10.1.1.53.7777 10.1.1.53.9711 10.1.1.45.9409 10.1.1.40.8789 10.1.1.43.4845 10.1.1.34.8273 10.1.1.35.4783 10.1.1.28.3176 10.1.1.16.8151 10.1.1.8.9117 10.1.1.58.3449 10.1.1.142.7041 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 92, "csxid": "oai CiteSeerXPSU 10.1.1.13.2374", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-17 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of o#ce information systems  it is costly and di#cult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"o#ce objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to o#ce software. In order to fully exploit the approach to achieve integrated o#ce systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments.  We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt to enhance productivity through, f CiteSeerX  2009-04-17 2007-11-21 1988 application/pdf text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.2374 http //www.iam.unibe.ch/~scg/Archive/OSG/Nier89bIntegOfficeSystems.pdf en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 51, "dblpid": "books/aw/kimL89/NierstraszT89", "title": "Integrated Office Systems.", "authors": "Oscar Nierstrasz Dennis Tsichritzis", "misc": "2002-01-03 199-215 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#NierstraszT89" }, "brec": { "id": 93, "csxid": "oai CiteSeerXPSU 10.1.1.42.9253", "title": "Integrated Office Systems", "authors": "O. M. Nierstrasz D. C. Tsichritzis", "misc": "2009-04-11 Introduction  New techniques are sorely needed to aid in the development and maintenance of large application systems. The problem with traditional approaches to software engineering is well in evidence in the field of office information systems  it is costly and difficult to extend existing applications, and to get unrelated applications to \"talk\" to each other. The objectoriented approach is already being tentatively applied in the modeling of \"office objects\" and in the presentation of these entities to users as such in \"desktop\" interfaces to office software. In order to fully exploit the approach to achieve integrated office systems, we need to use object-oriented programming languages, object-oriented run-time support, and object-oriented software engineering environments. We can view the fundamental idea behind the object-oriented approach as that of encapsulation  object-oriented languages and systems exploit encapsulation in various ways in an attempt t CiteSeerX ACM Press and Addison-Wesley 2009-04-11 2007-11-22 1988 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9253 ftp //ftp.iam.unibe.ch/pub/scg/Papers/integratedOfficeSystems.ps.gz en 10.1.1.26.9545 10.1.1.65.5865 10.1.1.34.624 10.1.1.12.8544 10.1.1.144.6983 10.1.1.26.6746 10.1.1.49.3064 10.1.1.30.4607 10.1.1.38.4894 10.1.1.20.8197 10.1.1.26.4381 10.1.1.29.1890 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
+{ "arec": { "id": 54, "dblpid": "books/aw/kimL89/SteinLU89", "title": "A Shared View of Sharing  The Treaty of Orlando.", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2002-01-03 31-48 1989 Object-Oriented Concepts, Databases, and Applications db/books/collections/kim89.html#SteinLU89" }, "brec": { "id": 91, "csxid": "oai CiteSeerXPSU 10.1.1.55.482", "title": "A Shared View of Sharing  The Treaty of Orlando", "authors": "Lynn Andrea Stein Henry Lieberman David Ungar", "misc": "2009-04-12 Introduction For the past few years, researchers have been debating the relative merits of object-oriented languages with classes and inheritance as opposed to those with prototypes and delegation. It has become clear that the object-oriented programming language design space is not a dichotomy. Instead, we have identified two fundamental mechanisms---templates and  empathy---and several different independent degrees of freedom for each. Templates create new objects in their own image, providing guarantees about the similarity of group members. Empathy allows an object to act as if it were some other object, thus providing sharing of state and behavior. The Smalltalk-80  TM  language,  1  Actors, Lieberman's Delegation  system, Self, and Hybrid each take differing stands on the forms of templates  1  Smalltalk-80  TM  is a trademark of Par CiteSeerX ACM Press 2009-04-12 2007-11-22 1989 application/postscript text http //citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.482 http //lcs.www.media.mit.edu/people/lieber/Lieberary/OOP/Treaty/Treaty.ps en 10.1.1.26.9545 10.1.1.118.6579 10.1.1.48.69 10.1.1.57.5195 10.1.1.9.570 10.1.1.47.511 10.1.1.127.5320 10.1.1.100.4334 10.1.1.5.3348 10.1.1.39.3374 10.1.1.56.4713 10.1.1.61.2065 10.1.1.27.3015 10.1.1.1.5960 10.1.1.67.5433 10.1.1.31.8109 10.1.1.68.4062 10.1.1.49.3986 10.1.1.122.9331 10.1.1.46.8283 10.1.1.54.5230 10.1.1.16.2055 10.1.1.137.5180 10.1.1.43.5722 10.1.1.68.2105 10.1.1.35.1247 10.1.1.30.1415 10.1.1.7.5014 10.1.1.102.3946 10.1.1.105.6469 10.1.1.26.223 10.1.1.26.8645 10.1.1.35.4104 10.1.1.39.6986 10.1.1.41.7822 10.1.1.42.9056 10.1.1.53.9325 10.1.1.71.1802 10.1.1.76.6993 10.1.1.89.9613 10.1.1.121.5599 10.1.1.122.3737 10.1.1.127.1894 10.1.1.55.5674 10.1.1.37.8260 10.1.1.2.2077 10.1.1.24.5782 10.1.1.19.780 10.1.1.2.4148 10.1.1.2.4173 10.1.1.131.902 10.1.1.30.2927 Metadata may be used without restrictions as long as the oai identifier remains attached to it." } }
diff --git a/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285-2/query_issue285-2.1.adm b/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285-2/query_issue285-2.1.adm
new file mode 100644
index 0000000..3005398
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285-2/query_issue285-2.1.adm
@@ -0,0 +1,10 @@
+{ "aid": 1, "bids": [  ] }
+{ "aid": 2, "bids": [  ] }
+{ "aid": 3, "bids": [  ] }
+{ "aid": 4, "bids": [  ] }
+{ "aid": 5, "bids": [ 98 ] }
+{ "aid": 6, "bids": [  ] }
+{ "aid": 7, "bids": [  ] }
+{ "aid": 8, "bids": [  ] }
+{ "aid": 9, "bids": [  ] }
+{ "aid": 10, "bids": [  ] }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285/query_issue285.1.adm b/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285/query_issue285.1.adm
new file mode 100644
index 0000000..62c427a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/leftouterjoin/query_issue285/query_issue285.1.adm
@@ -0,0 +1,100 @@
+{ "aid": 1, "bids": [  ] }
+{ "aid": 2, "bids": [  ] }
+{ "aid": 3, "bids": [  ] }
+{ "aid": 4, "bids": [  ] }
+{ "aid": 5, "bids": [ 98 ] }
+{ "aid": 6, "bids": [  ] }
+{ "aid": 7, "bids": [  ] }
+{ "aid": 8, "bids": [  ] }
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+{ "aid": 10, "bids": [  ] }
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+{ "aid": 12, "bids": [  ] }
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+{ "aid": 23, "bids": [  ] }
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+{ "aid": 25, "bids": [  ] }
+{ "aid": 26, "bids": [  ] }
+{ "aid": 27, "bids": [  ] }
+{ "aid": 28, "bids": [  ] }
+{ "aid": 29, "bids": [  ] }
+{ "aid": 30, "bids": [  ] }
+{ "aid": 31, "bids": [  ] }
+{ "aid": 32, "bids": [  ] }
+{ "aid": 33, "bids": [  ] }
+{ "aid": 34, "bids": [ 57 ] }
+{ "aid": 35, "bids": [  ] }
+{ "aid": 36, "bids": [  ] }
+{ "aid": 37, "bids": [  ] }
+{ "aid": 38, "bids": [  ] }
+{ "aid": 39, "bids": [  ] }
+{ "aid": 40, "bids": [  ] }
+{ "aid": 41, "bids": [  ] }
+{ "aid": 42, "bids": [  ] }
+{ "aid": 43, "bids": [  ] }
+{ "aid": 44, "bids": [  ] }
+{ "aid": 45, "bids": [  ] }
+{ "aid": 46, "bids": [  ] }
+{ "aid": 47, "bids": [  ] }
+{ "aid": 48, "bids": [  ] }
+{ "aid": 49, "bids": [  ] }
+{ "aid": 50, "bids": [  ] }
+{ "aid": 51, "bids": [  ] }
+{ "aid": 52, "bids": [  ] }
+{ "aid": 53, "bids": [  ] }
+{ "aid": 54, "bids": [ 91 ] }
+{ "aid": 55, "bids": [  ] }
+{ "aid": 56, "bids": [  ] }
+{ "aid": 57, "bids": [  ] }
+{ "aid": 58, "bids": [  ] }
+{ "aid": 59, "bids": [  ] }
+{ "aid": 60, "bids": [  ] }
+{ "aid": 61, "bids": [  ] }
+{ "aid": 62, "bids": [  ] }
+{ "aid": 63, "bids": [  ] }
+{ "aid": 64, "bids": [  ] }
+{ "aid": 65, "bids": [  ] }
+{ "aid": 66, "bids": [  ] }
+{ "aid": 67, "bids": [  ] }
+{ "aid": 68, "bids": [ 57 ] }
+{ "aid": 69, "bids": [ 57 ] }
+{ "aid": 70, "bids": [  ] }
+{ "aid": 71, "bids": [  ] }
+{ "aid": 72, "bids": [  ] }
+{ "aid": 73, "bids": [  ] }
+{ "aid": 74, "bids": [  ] }
+{ "aid": 75, "bids": [  ] }
+{ "aid": 76, "bids": [  ] }
+{ "aid": 77, "bids": [  ] }
+{ "aid": 78, "bids": [  ] }
+{ "aid": 79, "bids": [  ] }
+{ "aid": 80, "bids": [  ] }
+{ "aid": 81, "bids": [  ] }
+{ "aid": 82, "bids": [  ] }
+{ "aid": 83, "bids": [  ] }
+{ "aid": 84, "bids": [  ] }
+{ "aid": 85, "bids": [  ] }
+{ "aid": 86, "bids": [  ] }
+{ "aid": 87, "bids": [  ] }
+{ "aid": 88, "bids": [  ] }
+{ "aid": 89, "bids": [  ] }
+{ "aid": 90, "bids": [  ] }
+{ "aid": 91, "bids": [  ] }
+{ "aid": 92, "bids": [  ] }
+{ "aid": 93, "bids": [  ] }
+{ "aid": 94, "bids": [  ] }
+{ "aid": 95, "bids": [  ] }
+{ "aid": 96, "bids": [  ] }
+{ "aid": 97, "bids": [  ] }
+{ "aid": 98, "bids": [  ] }
+{ "aid": 99, "bids": [  ] }
+{ "aid": 100, "bids": [  ] }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/list/any-collection-member_01.adm b/asterix-app/src/test/resources/runtimets/results/list/any-collection-member_01/any-collection-member_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/any-collection-member_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/any-collection-member_01/any-collection-member_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/get-item_01.adm b/asterix-app/src/test/resources/runtimets/results/list/get-item_01/get-item_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/get-item_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/get-item_01/get-item_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/len_01.adm b/asterix-app/src/test/resources/runtimets/results/list/len_01/len_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/len_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/len_01/len_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/len_null_01.adm b/asterix-app/src/test/resources/runtimets/results/list/len_null_01/len_null_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/len_null_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/len_null_01/len_null_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/listify_01.adm b/asterix-app/src/test/resources/runtimets/results/list/listify_01/listify_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/listify_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/listify_01/listify_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/listify_02.adm b/asterix-app/src/test/resources/runtimets/results/list/listify_02/listify_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/listify_02.adm
rename to asterix-app/src/test/resources/runtimets/results/list/listify_02/listify_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/listify_03/listify_03.1.adm b/asterix-app/src/test/resources/runtimets/results/list/listify_03/listify_03.1.adm
new file mode 100644
index 0000000..978069e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/list/listify_03/listify_03.1.adm
@@ -0,0 +1,2 @@
+-5
+-5
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_01.adm b/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_01/ordered-list-constructor_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_01/ordered-list-constructor_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_02.adm b/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_02/ordered-list-constructor_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_02.adm
rename to asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_02/ordered-list-constructor_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_03/ordered-list-constructor_03.1.adm b/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_03/ordered-list-constructor_03.1.adm
new file mode 100644
index 0000000..5c06d0b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/list/ordered-list-constructor_03/ordered-list-constructor_03.1.adm
@@ -0,0 +1 @@
+[ null, null, null ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/list/scan-collection_01.adm b/asterix-app/src/test/resources/runtimets/results/list/scan-collection_01/scan-collection_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/scan-collection_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/scan-collection_01/scan-collection_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/union_01.adm b/asterix-app/src/test/resources/runtimets/results/list/union_01/union_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/union_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/union_01/union_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/union_02.adm b/asterix-app/src/test/resources/runtimets/results/list/union_02/union_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/union_02.adm
rename to asterix-app/src/test/resources/runtimets/results/list/union_02/union_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_01.adm b/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_01/unordered-list-constructor_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_01.adm
rename to asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_01/unordered-list-constructor_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_02.adm b/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_02/unordered-list-constructor_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_02.adm
rename to asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_02/unordered-list-constructor_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_03/unordered-list-constructor_03.1.adm b/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_03/unordered-list-constructor_03.1.adm
new file mode 100644
index 0000000..8ffe6e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/list/unordered-list-constructor_03/unordered-list-constructor_03.1.adm
@@ -0,0 +1 @@
+{{ null, null, null }}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/load/issue289_query/issue289_query.1.adm b/asterix-app/src/test/resources/runtimets/results/load/issue289_query/issue289_query.1.adm
new file mode 100644
index 0000000..9a03714
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/load/issue289_query/issue289_query.1.adm
@@ -0,0 +1 @@
+10
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/float_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/float_01/float_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/float_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/float_01/float_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/groupby-orderby-count.adm b/asterix-app/src/test/resources/runtimets/results/misc/groupby-orderby-count/groupby-orderby-count.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/groupby-orderby-count.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/groupby-orderby-count/groupby-orderby-count.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/ifthenelse_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/ifthenelse_01/ifthenelse_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/ifthenelse_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/ifthenelse_01/ifthenelse_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/is-null_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/is-null_01/is-null_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/is-null_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/is-null_01/is-null_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/nested-loop-join_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/nested-loop-join_01/nested-loop-join_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/nested-loop-join_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/nested-loop-join_01/nested-loop-join_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/range_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/range_01/range_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/range_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/range_01/range_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tid_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/tid_01/tid_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tid_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/tid_01/tid_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/year_01.adm b/asterix-app/src/test/resources/runtimets/results/misc/year_01/year_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/year_01.adm
rename to asterix-app/src/test/resources/runtimets/results/misc/year_01/year_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/nestrecords/nestrecord/nestrecord.1.adm b/asterix-app/src/test/resources/runtimets/results/nestrecords/nestrecord/nestrecord.1.adm
new file mode 100644
index 0000000..2b255b0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/nestrecords/nestrecord/nestrecord.1.adm
@@ -0,0 +1,4 @@
+{ "name": "Person One", "id": "001", "address": { "street": "3019 DBH", "city": "Irvine", "zip": 92697 } }
+{ "name": "Person Two", "id": "002", "address": null }
+{ "name": "Person Three", "id": "003", "address": { "street": "2019 DBH", "city": "Irvine" } }
+{ "name": "Person Four", "id": "004", "address": null, "home": { "street": "2019 DBH", "city": { "name": "Irvine", "zip": 92697 } } }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/abs0/abs0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/abs0/abs0.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/abs0/abs0.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/abs1/abs1.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/abs1/abs1.1.adm
new file mode 100644
index 0000000..263ae97
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/abs1/abs1.1.adm
@@ -0,0 +1 @@
+{ "f0": 20i8, "f1": 23i16, "f2": 29, "f3": 21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/abs2/abs2.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/abs2/abs2.1.adm
new file mode 100644
index 0000000..a4bcbe8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/abs2/abs2.1.adm
@@ -0,0 +1 @@
+{ "f0": 20.1f, "f1": 2.056E-29f, "f2": NaNf, "f3": Infinityf, "f4": Infinityf, "f5": 0.0f, "f6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/abs3/abs3.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/abs3/abs3.1.adm
new file mode 100644
index 0000000..4da3272
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/abs3/abs3.1.adm
@@ -0,0 +1 @@
+{ "d0": 20.1d, "d1": 2.056E-29d, "d2": NaNd, "d3": Infinityd, "d4": Infinityd, "d5": 0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/abs4/abs4.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/abs4/abs4.1.adm
new file mode 100644
index 0000000..f365181
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/abs4/abs4.1.adm
@@ -0,0 +1 @@
+{ "f0": 20i8, "f1": 1.11d, "f2": 12.9d, "f3": 1.11d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_double.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_double/add_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_double.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_double/add_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_float.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_float/add_float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_float.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_float/add_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_int16.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_int16/add_int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_int16.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_int16/add_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_int32.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_int32/add_int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_int32.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_int32/add_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_int64.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_int64/add_int64.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_int64.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_int64/add_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/add_int8.adm b/asterix-app/src/test/resources/runtimets/results/numeric/add_int8/add_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/add_int8.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/add_int8/add_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/ceiling0/ceiling0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling0/ceiling0.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling0/ceiling0.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/ceiling1/ceiling1.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling1/ceiling1.1.adm
new file mode 100644
index 0000000..bf278a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling1/ceiling1.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -23i16, "f2": -29, "f3": -21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/ceiling2/ceiling2.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling2/ceiling2.1.adm
new file mode 100644
index 0000000..96e5d3d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling2/ceiling2.1.adm
@@ -0,0 +1 @@
+{ "f0": 21.0f, "f1": -0.0f, "f2": NaNf, "f3": Infinityf, "f4": -Infinityf, "f5": -0.0f, "f6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/ceiling3/ceiling3.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling3/ceiling3.1.adm
new file mode 100644
index 0000000..bf497d4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling3/ceiling3.1.adm
@@ -0,0 +1 @@
+{ "d0": 21.0d, "d1": -0.0d, "d2": NaNd, "d3": Infinityd, "d4": -Infinityd, "d5": -0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/ceiling4/ceiling4.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling4/ceiling4.1.adm
new file mode 100644
index 0000000..dcc17c0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/ceiling4/ceiling4.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -1.0d, "f2": 13.0d, "f3": 2.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_double.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_double/divide_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_double.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_double/divide_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_float.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_float/divide_float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_float.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_float/divide_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_int16.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_int16/divide_int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_int16.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_int16/divide_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_int32.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_int32/divide_int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_int32.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_int32/divide_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_int64.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_int64/divide_int64.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_int64.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_int64/divide_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/divide_int8.adm b/asterix-app/src/test/resources/runtimets/results/numeric/divide_int8/divide_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/divide_int8.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/divide_int8/divide_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/floor0/floor0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/floor0/floor0.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/floor0/floor0.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/floor1/floor1.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/floor1/floor1.1.adm
new file mode 100644
index 0000000..bf278a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/floor1/floor1.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -23i16, "f2": -29, "f3": -21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/floor2/floor2.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/floor2/floor2.1.adm
new file mode 100644
index 0000000..078d1596
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/floor2/floor2.1.adm
@@ -0,0 +1 @@
+{ "f0": 20.0f, "f1": -1.0f, "f2": NaNf, "f3": Infinityf, "f4": -Infinityf, "f5": -0.0f, "f6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/floor3/floor3.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/floor3/floor3.1.adm
new file mode 100644
index 0000000..58bdd79
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/floor3/floor3.1.adm
@@ -0,0 +1 @@
+{ "d0": 20.0d, "d1": -1.0d, "d2": NaNd, "d3": Infinityd, "d4": -Infinityd, "d5": -0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/floor4/floor4.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/floor4/floor4.1.adm
new file mode 100644
index 0000000..3e972b3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/floor4/floor4.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -2.0d, "f2": 12.0d, "f3": 1.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_double.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_double/multiply_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_double.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_double/multiply_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_float.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_float/multiply_float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_float.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_float/multiply_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int16.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int16/multiply_int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_int16.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_int16/multiply_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int32.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int32/multiply_int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_int32.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_int32/multiply_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int64.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int64/multiply_int64.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_int64.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_int64/multiply_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int8.adm b/asterix-app/src/test/resources/runtimets/results/numeric/multiply_int8/multiply_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/multiply_int8.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/multiply_int8/multiply_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even0/round-half-to-even0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even0/round-half-to-even0.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even0/round-half-to-even0.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even1/round-half-to-even1.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even1/round-half-to-even1.1.adm
new file mode 100644
index 0000000..bf278a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even1/round-half-to-even1.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -23i16, "f2": -29, "f3": -21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even2/round-half-to-even2.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even2/round-half-to-even2.1.adm
new file mode 100644
index 0000000..f5f9e3f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even2/round-half-to-even2.1.adm
@@ -0,0 +1 @@
+{ "f0": 0.0f, "f1": -20.0f, "f2": NaNf, "f3": Infinityf, "f4": -Infinityf, "f5": -0.0f, "f6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even20/round-half-to-even20.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even20/round-half-to-even20.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even20/round-half-to-even20.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even21/round-half-to-even21.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even21/round-half-to-even21.1.adm
new file mode 100644
index 0000000..bf278a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even21/round-half-to-even21.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -23i16, "f2": -29, "f3": -21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even22/round-half-to-even22.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even22/round-half-to-even22.1.adm
new file mode 100644
index 0000000..3f0cead
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even22/round-half-to-even22.1.adm
@@ -0,0 +1 @@
+{ "d0": 0.56f, "d1": 0.32f, "d2": NaNf, "d3": Infinityf, "d4": -Infinityf, "d5": -0.0f, "d6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even23/round-half-to-even23.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even23/round-half-to-even23.1.adm
new file mode 100644
index 0000000..914a79e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even23/round-half-to-even23.1.adm
@@ -0,0 +1 @@
+{ "d0": 0.56d, "d1": 0.32d, "d2": NaNd, "d3": Infinityd, "d4": -Infinityd, "d5": -0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even24/round-half-to-even24.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even24/round-half-to-even24.1.adm
new file mode 100644
index 0000000..956f0ac
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even24/round-half-to-even24.1.adm
@@ -0,0 +1 @@
+{ "d0": 0.02d, "d1": 0.02d, "d2": 3567.81d, "d3": 0.0d, "d4": 35600.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even3/round-half-to-even3.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even3/round-half-to-even3.1.adm
new file mode 100644
index 0000000..60b7c52
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even3/round-half-to-even3.1.adm
@@ -0,0 +1 @@
+{ "d0": 0.0d, "d1": -20.0d, "d2": NaNd, "d3": Infinityd, "d4": -Infinityd, "d5": -0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even4/round-half-to-even4.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even4/round-half-to-even4.1.adm
new file mode 100644
index 0000000..5620cde
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even4/round-half-to-even4.1.adm
@@ -0,0 +1 @@
+{ "d0": 2.0d, "d1": 2.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even5/round-half-to-even5.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even5/round-half-to-even5.1.adm
new file mode 100644
index 0000000..a53f62f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round-half-to-even5/round-half-to-even5.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -2.0d, "f2": 12.0d, "f3": 2.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round0/round0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round0/round0.1.adm
new file mode 100644
index 0000000..61c5048
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round0/round0.1.adm
@@ -0,0 +1 @@
+{ "f0": 0i8, "f1": 0i16, "f2": 0, "f3": 0i64, "f4": 0i8, "f5": 0i16, "f6": 0, "f7": 0i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round1/round1.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round1/round1.1.adm
new file mode 100644
index 0000000..bf278a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round1/round1.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -23i16, "f2": -29, "f3": -21i64, "f4": 20i8, "f5": 22i16, "f6": 23, "f7": 27i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round2/round2.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round2/round2.1.adm
new file mode 100644
index 0000000..791c1da
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round2/round2.1.adm
@@ -0,0 +1 @@
+{ "f0": 20.0f, "f1": 0.0f, "f2": 0.0f, "f3": 2.14748365E9f, "f4": -2.14748365E9f, "f5": 0.0f, "f6": 0.0f }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round3/round3.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round3/round3.1.adm
new file mode 100644
index 0000000..1b1936d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round3/round3.1.adm
@@ -0,0 +1 @@
+{ "d0": 20.0d, "d1": 0.0d, "d2": 0.0d, "d3": 9.223372036854776E18d, "d4": -9.223372036854776E18d, "d5": 0.0d, "d6": 0.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/round4/round4.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/round4/round4.1.adm
new file mode 100644
index 0000000..ce70363
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/round4/round4.1.adm
@@ -0,0 +1 @@
+{ "f0": -20i8, "f1": -1.0d, "f2": 13.0d, "f3": 1.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_double.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_double/subtract_double.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_double.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_double/subtract_double.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_float.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_float/subtract_float.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_float.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_float/subtract_float.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int16.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int16/subtract_int16.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_int16.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_int16/subtract_int16.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int32.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int32/subtract_int32.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_int32.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_int32/subtract_int32.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int64.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int64/subtract_int64.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_int64.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_int64/subtract_int64.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int8.adm b/asterix-app/src/test/resources/runtimets/results/numeric/subtract_int8/subtract_int8.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/subtract_int8.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/subtract_int8/subtract_int8.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01/unary-minus_double_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01/unary-minus_double_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_02.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_02.adm
deleted file mode 100644
index 3a72bb8..0000000
--- a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "double1": 2.056E-29d, "double2": NaNd, "double3": -Infinityd, "double4": Infinityd }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_02/unary-minus_double_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_01.adm
copy to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_double_02/unary-minus_double_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01/unary-minus_float_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01/unary-minus_float_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_02.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_02.adm
deleted file mode 100644
index e6541ae..0000000
--- a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "float1": 80.2f, "float2": NaNf, "float3": -Infinityf, "float4": Infinityf }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_02/unary-minus_float_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_01.adm
copy to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_float_02/unary-minus_float_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01/unary-minus_int_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01/unary-minus_int_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_02.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_02.adm
deleted file mode 100644
index 4ecc59b..0000000
--- a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "int8": -80i8, "int16": -160i16, "int32": -320, "int64": 640i64 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_02/unary-minus_int_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_01.adm
copy to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_int_02/unary-minus_int_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_null.adm b/asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_null/unary-minus_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_null.adm
rename to asterix-app/src/test/resources/runtimets/results/numeric/unary-minus_null/unary-minus_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.adm
new file mode 100644
index 0000000..ee958f2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list-ordered01/heterog-list-ordered01.1.adm
@@ -0,0 +1 @@
+{ "id": 1234, "description": "donut", "name": "Cake", "batters": [ [ { "id": 345, "descrpt": "Regular" }, { "id": 445, "descrpt": "Chocolate" } ] ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list01/heterog-list01.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list01/heterog-list01.1.adm
new file mode 100644
index 0000000..30c55c2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/heterog-list01/heterog-list01.1.adm
@@ -0,0 +1 @@
+{ "id": 1234, "description": "donut", "name": "Cake", "batters": {{ { "id": 345, "descrpt": "Regular" }, { "id": 445, "descrpt": "Chocolate" } }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-01/open-closed-01.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-01/open-closed-01.1.adm
new file mode 100644
index 0000000..c5aac6d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-01/open-closed-01.1.adm
@@ -0,0 +1 @@
+{ "id": 123, "name": "John Doe", "hobbies": {{ "scuba", "music" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-12/open-closed-12.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-12/open-closed-12.1.adm
new file mode 100644
index 0000000..7570226
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-12/open-closed-12.1.adm
@@ -0,0 +1,3 @@
+{ "id": "001", "name": "Person One", "hobbies": {{ "scuba", "music" }} }
+{ "id": "002", "name": "Person Two", "hobbies": {{ "fishing", "dance" }} }
+{ "id": "003", "name": "Person Three", "hobbies": {{ "hiking", "surfing" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-14/open-closed-14.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-14/open-closed-14.1.adm
new file mode 100644
index 0000000..70b6b95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-14/open-closed-14.1.adm
@@ -0,0 +1,5 @@
+{ "id": "001", "name": null }
+{ "id": "002", "name": "John Doe" }
+{ "id": "003", "name": null }
+{ "id": "004", "name": null }
+{ "id": "005", "name": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-24/open-closed-24.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-24/open-closed-24.1.adm
new file mode 100644
index 0000000..fbcf8ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-24/open-closed-24.1.adm
@@ -0,0 +1 @@
+{ "id": 32, "name": "UCI", "opt_tag": {{ "optional text", "put any text here", "and more" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-25/open-closed-25.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-25/open-closed-25.1.adm
new file mode 100644
index 0000000..fbcf8ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-25/open-closed-25.1.adm
@@ -0,0 +1 @@
+{ "id": 32, "name": "UCI", "opt_tag": {{ "optional text", "put any text here", "and more" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-26/open-closed-26.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-26/open-closed-26.1.adm
new file mode 100644
index 0000000..755a799
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-26/open-closed-26.1.adm
@@ -0,0 +1 @@
+{ "id": 32, "name": "UCI", "opt_tag": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-29/open-closed-29.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-29/open-closed-29.1.adm
new file mode 100644
index 0000000..2c3d0ea
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-29/open-closed-29.1.adm
@@ -0,0 +1 @@
+{ "id": "003", "name": "Person Three", "hobbies": {{ "hiking", "surfing" }} }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-31/open-closed-31.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-31/open-closed-31.1.adm
new file mode 100644
index 0000000..d5816e2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-31/open-closed-31.1.adm
@@ -0,0 +1 @@
+{{ "hiking", "surfing" }}
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-32/open-closed-32.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-32/open-closed-32.1.adm
new file mode 100644
index 0000000..2103e83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-32/open-closed-32.1.adm
@@ -0,0 +1,3 @@
+{{ "hiking", "scuba", "painting", "biking" }}
+{{ "tennis", "scuba", "running", "biking" }}
+{{ "gardening", "biking", "reading", "hiking", "fishing" }}
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-33/open-closed-33.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-33/open-closed-33.1.adm
new file mode 100644
index 0000000..2103e83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/open-closed-33/open-closed-33.1.adm
@@ -0,0 +1,3 @@
+{{ "hiking", "scuba", "painting", "biking" }}
+{{ "tennis", "scuba", "running", "biking" }}
+{{ "gardening", "biking", "reading", "hiking", "fishing" }}
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue134/query-issue134.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue134/query-issue134.1.adm
new file mode 100644
index 0000000..0d06066
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue134/query-issue134.1.adm
@@ -0,0 +1 @@
+{{ [ 1, 2, 3, 4, 5 ], [ 6, 5, 3, 8, 9 ], [ 44, 22, 66, -1, 0, 99.9d ] }}
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue166/query-issue166.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue166/query-issue166.1.adm
new file mode 100644
index 0000000..b5897af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue166/query-issue166.1.adm
@@ -0,0 +1 @@
+[ 4, 5, 6, 7 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue208/query-issue208.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue208/query-issue208.1.adm
new file mode 100644
index 0000000..14c1c18
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue208/query-issue208.1.adm
@@ -0,0 +1,6 @@
+{ "count": 1, "user": "RollandEckhard#500" }
+{ "count": 2, "user": "RollandEckhardstein#211" }
+{ "count": 1, "user": "RollandEckhardstein#221" }
+{ "count": 1, "user": "RollandEcstein#211" }
+{ "count": 1, "user": "Rolldstein#211" }
+{ "count": 1, "user": "Rolltein#211" }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue236/query-issue236.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue236/query-issue236.1.adm
new file mode 100644
index 0000000..65bdb8f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue236/query-issue236.1.adm
@@ -0,0 +1 @@
+{ "tweetid": "1111387810", "tweetid-copy": "1111387810", "user": { "screen-name": "TonyNapier#786", "lang": "en", "friends_count": 4241366, "statuses_count": 97, "name": "Tony Napier", "followers_count": 5984113 }, "sender-location": point("29.24,78.35"), "send-time": datetime("2011-11-24T14:24:51.000Z"), "send-time-copy": datetime("2011-11-24T14:24:51.000Z"), "referred-topics": {{ "sprint", "wireless" }}, "message-text": " love sprint its wireless is mind-blowing:)" }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue29/query-issue29.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue29/query-issue29.1.adm
new file mode 100644
index 0000000..3d2819e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue29/query-issue29.1.adm
@@ -0,0 +1 @@
+{{ { "tweetid": "1023", "user": { "screen-name": "dflynn24", "lang": "en", "friends_count": 46, "statuses_count": 987, "name": "danielle flynn", "followers_count": 47 }, "sender-location": "40.904177,-72.958996", "send-time": "2010-02-21T11:56:02-05:00", "referred-topics": {{ "verizon" }}, "message-text": "i need a #verizon phone like nowwwww! :(" }, { "tweetid": "1024", "user": { "screen-name": "miriamorous", "lang": "en", "friends_count": 69, "statuses_count": 1068, "name": "Miriam Songco", "followers_count": 78 }, "send-time": "2010-02-21T11:11:43-08:00", "referred-topics": {{ "commercials", "verizon", "att" }}, "message-text": "#verizon & #att #commercials, so competitive" }, { "tweetid": "1025", "user": { "screen-name": "dj33", "lang": "en", "friends_count": 96, "statuses_count": 1696, "name": "Don Jango", "followers_count": 22 }, "send-time": "2010-02-21T12:38:44-05:00", "referred-topics": {{ "charlotte" }}, "message-text": "Chillin at dca waiting for 900am flight to #charlotte and from there to providenciales" }, { "tweetid": "1026", "user": { "screen-name": "reallyleila", "lang": "en", "friends_count": 106, "statuses_count": 107, "name": "Leila Samii", "followers_count": 52 }, "send-time": "2010-02-21T21:31:57-06:00", "referred-topics": {{ "verizon", "at&t", "iphone" }}, "message-text": "I think a switch from #verizon to #at&t may be in my near future... my smartphone is like a land line compared to the #iphone!" } }}
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55-1/query-issue55-1.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55-1/query-issue55-1.1.adm
new file mode 100644
index 0000000..adf0f33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55-1/query-issue55-1.1.adm
@@ -0,0 +1,49 @@
+[ 1.1f, 1.1f, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1.1f, 1.0f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.1f, 1.2f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.1f, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.1f, 1.3d, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.1f, 1, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.1f, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.0f, 1.1f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.0f, 1.0f, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1.0f, 1.2f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.0f, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.0f, 1.3d, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.0f, 1, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1.0f, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.2f, 1.1f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.2f, 1.0f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.2f, 1.2f, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1.2f, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.2f, 1.3d, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.2f, 1, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.2f, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 1.1f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 1.0f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 1.2f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 0.9d, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 0.9d, 1.3d, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 1, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 0.9d, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1.3d, 1.1f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.3d, 1.0f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.3d, 1.2f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.3d, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.3d, 1.3d, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1.3d, 1, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1.3d, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1, 1.1f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1, 1.0f, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1, 1.2f, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 1, 1.3d, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 1, 1, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
+[ 1, 2, "=", false, "<", true, "<=", true, ">", false, ">=", false ]
+[ 2, 1.1f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 1.0f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 1.2f, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 0.9d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 1.3d, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 1, "=", false, "<", false, "<=", false, ">", true, ">=", true ]
+[ 2, 2, "=", true, "<", false, "<=", true, ">", false, ">=", true ]
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55/query-issue55.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55/query-issue55.1.adm
new file mode 100644
index 0000000..d384bce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue55/query-issue55.1.adm
@@ -0,0 +1,4 @@
+[ 1, 3 ]
+[ 4, 5, 2 ]
+[ -1, -3, 0 ]
+[ "a" ]
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal/query-proposal.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal/query-proposal.1.adm
new file mode 100644
index 0000000..23ab1f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal/query-proposal.1.adm
@@ -0,0 +1,5 @@
+{ "topic": "at&t", "count": 1 }
+{ "topic": "att", "count": 1 }
+{ "topic": "commercials", "count": 1 }
+{ "topic": "iphone", "count": 1 }
+{ "topic": "verizon", "count": 3 }
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal02/query-proposal02.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal02/query-proposal02.1.adm
new file mode 100644
index 0000000..23ab1f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-proposal02/query-proposal02.1.adm
@@ -0,0 +1,5 @@
+{ "topic": "at&t", "count": 1 }
+{ "topic": "att", "count": 1 }
+{ "topic": "commercials", "count": 1 }
+{ "topic": "iphone", "count": 1 }
+{ "topic": "verizon", "count": 3 }
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_01/everysat_01.1.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_01/everysat_01.1.adm
new file mode 100644
index 0000000..d6cf966
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_01/everysat_01.1.adm
@@ -0,0 +1 @@
+-30
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_02/everysat_02.1.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_02/everysat_02.1.adm
new file mode 100644
index 0000000..fd6a9d9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_02/everysat_02.1.adm
@@ -0,0 +1,12 @@
+false
+true
+false
+true
+false
+false
+true
+false
+false
+false
+false
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_04/everysat_04.1.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_04/everysat_04.1.adm
new file mode 100644
index 0000000..98ce28d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/quantifiers/everysat_04/everysat_04.1.adm
@@ -0,0 +1,8 @@
+false
+false
+false
+true
+true
+false
+false
+false
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_01.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_01/somesat_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_01.adm
rename to asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_01/somesat_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_02.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_02/somesat_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_02.adm
rename to asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_02/somesat_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_06/somesat_06.1.adm b/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_06/somesat_06.1.adm
new file mode 100644
index 0000000..2cc1766
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/quantifiers/somesat_06/somesat_06.1.adm
@@ -0,0 +1,8 @@
+false
+true
+true
+true
+true
+true
+true
+false
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01.adm b/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01/closed-record-constructor_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01.adm
copy to asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01/closed-record-constructor_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02.adm b/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02/closed-record-constructor_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02.adm
copy to asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02/closed-record-constructor_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_03.adm b/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_03/closed-record-constructor_03.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_03.adm
rename to asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_03/closed-record-constructor_03.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/expFieldName.adm b/asterix-app/src/test/resources/runtimets/results/records/expFieldName/expFieldName.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/records/expFieldName.adm
rename to asterix-app/src/test/resources/runtimets/results/records/expFieldName/expFieldName.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/field-access-by-index_01.adm b/asterix-app/src/test/resources/runtimets/results/records/field-access-by-index_01/field-access-by-index_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/records/field-access-by-index_01.adm
rename to asterix-app/src/test/resources/runtimets/results/records/field-access-by-index_01/field-access-by-index_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/field-access-on-open-field/field-access-on-open-field.1.adm b/asterix-app/src/test/resources/runtimets/results/records/field-access-on-open-field/field-access-on-open-field.1.adm
new file mode 100644
index 0000000..d4edf93
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/records/field-access-on-open-field/field-access-on-open-field.1.adm
@@ -0,0 +1 @@
+92617
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_01.adm b/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_01.adm
deleted file mode 100644
index 76324d0..0000000
--- a/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "foo1": 10, "bar1": 20, "foo2": 30, "bar2": 40 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01.adm b/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_01/open-record-constructor_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_01.adm
rename to asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_01/open-record-constructor_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_02.adm b/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_02.adm
deleted file mode 100644
index 05889d5..0000000
--- a/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "foo1": 10, "bar1": { "bar1.1": 10, "bar1.2": 20, "bar1.3": 30, "bar1.4": { "bar1.4.1": 10, "bar1.4.2": 20, "bar1.4.3": 30, "bar1.4.4": 40 }, "foo2": 30, "bar2": 40 }, "foo2": 30, "bar2": 40 }
diff --git a/asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02.adm b/asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_02/open-record-constructor_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/records/closed-record-constructor_02.adm
rename to asterix-app/src/test/resources/runtimets/results/records/open-record-constructor_02/open-record-constructor_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/10.adm b/asterix-app/src/test/resources/runtimets/results/scan/10/10.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/10.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/10/10.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/20.adm b/asterix-app/src/test/resources/runtimets/results/scan/20/20.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/20.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/20/20.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/30.adm b/asterix-app/src/test/resources/runtimets/results/scan/30/30.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/30.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/30/30.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01.adm b/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01.adm
deleted file mode 100644
index 3fad2e3..0000000
--- a/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "id": 10, "name": "Nancy", "age": 32.5f, "salary": 12.0d, "married": true, "interests": {{ "reading", "writing" }}, "children": [ "Brad", "Scott" ], "address": { "number": 8389, "street": "Hill St.", "city": "Mountain View" }, "dob": date("-2011-01-27+00:00"), "time": time("12:20:30:000+00:00"), "datetime": datetime("-1951-12-27T12:20:30:000+00:00"), "duration": duration("D10Y11M12DT10H50M30S"), "location2d": point("41.0,44.0"), "location3d": point3d("44.0,13.0,41.0"), "line": line("10.1,11.1 10.2,11.2"), "polygon": polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), "circle": circle("10.1,11.1 10.2") }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01/alltypes_01.1.adm b/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01/alltypes_01.1.adm
new file mode 100644
index 0000000..64aee7c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/scan/alltypes_01/alltypes_01.1.adm
@@ -0,0 +1 @@
+{ "id": 10, "name": "Nancy", "age": 32.5f, "salary": 12.0d, "married": true, "interests": {{ "reading", "writing" }}, "children": [ "Brad", "Scott" ], "address": { "number": 8389, "street": "Hill St.", "city": "Mountain View" }, "dob": date("-2011-01-27"), "time": time("12:20:30.000Z"), "datetime": datetime("-1951-12-27T12:20:30.000Z"), "duration": duration("P10Y11M12DT10H50M30S"), "location2d": point("41.0,44.0"), "location3d": point3d("44.0,13.0,41.0"), "line": line("10.1,11.1 10.2,11.2"), "polygon": polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), "circle": circle("10.1,11.1 10.2") }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/alltypes_02/alltypes_02.1.adm b/asterix-app/src/test/resources/runtimets/results/scan/alltypes_02/alltypes_02.1.adm
new file mode 100644
index 0000000..64aee7c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/scan/alltypes_02/alltypes_02.1.adm
@@ -0,0 +1 @@
+{ "id": 10, "name": "Nancy", "age": 32.5f, "salary": 12.0d, "married": true, "interests": {{ "reading", "writing" }}, "children": [ "Brad", "Scott" ], "address": { "number": 8389, "street": "Hill St.", "city": "Mountain View" }, "dob": date("-2011-01-27"), "time": time("12:20:30.000Z"), "datetime": datetime("-1951-12-27T12:20:30.000Z"), "duration": duration("P10Y11M12DT10H50M30S"), "location2d": point("41.0,44.0"), "location3d": point3d("44.0,13.0,41.0"), "line": line("10.1,11.1 10.2,11.2"), "polygon": polygon("1.2,1.3 2.1,2.5 3.5,3.6 4.6,4.8"), "circle": circle("10.1,11.1 10.2") }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/20.adm b/asterix-app/src/test/resources/runtimets/results/scan/issue238_query_1/issue238_query_1.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/scan/20.adm
copy to asterix-app/src/test/resources/runtimets/results/scan/issue238_query_1/issue238_query_1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/20.adm b/asterix-app/src/test/resources/runtimets/results/scan/issue238_query_2/issue238_query_2.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/scan/20.adm
copy to asterix-app/src/test/resources/runtimets/results/scan/issue238_query_2/issue238_query_2.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01.adm b/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01/numeric_types_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01/numeric_types_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_02.adm b/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_02.adm
deleted file mode 100644
index 597c28a..0000000
--- a/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_02.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-{ "id": 10, "int8Field": 48i8, "int16Field": -16i16, "int32Field": -32, "int64Field": -64i64, "floatField": 64.0f, "doubleField": 64.0d, "int8Field2": 48i8, "int16Field2": 16i16, "int32Field2": 32, "int64Field2": 64i64, "int8Field3": 48i8, "int16Field3": 16i16, "int32Field3": 32, "int64Field3": 64i64, "int8Field4": -48i8, "int16Field4": -16i16, "int32Field4": -32, "int64Field4": -64i64, "floatco2": 0.64f, "doubleco2": 0.64d, "floatco3": 64.1f, "doubleco3": 64.1d, "floatco4": 4.9999999E10f, "doubleco4": 5.0E10d, "floatco5": 4.9999999E10f, "doubleco5": 5.0E10d, "floatco6": 5.0E-10f, "doubleco6": 5.0E-10d }
-{ "id": 11, "int8Field": null, "int16Field": null, "int32Field": null, "int64Field": null, "floatField": null, "doubleField": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01.adm b/asterix-app/src/test/resources/runtimets/results/scan/numeric_types_02/numeric_types_02.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/scan/numeric_types_01.adm
copy to asterix-app/src/test/resources/runtimets/results/scan/numeric_types_02/numeric_types_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/spatial_types_01.adm b/asterix-app/src/test/resources/runtimets/results/scan/spatial_types_01/spatial_types_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/spatial_types_01.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/spatial_types_01/spatial_types_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/spatial_types_02.adm b/asterix-app/src/test/resources/runtimets/results/scan/spatial_types_02/spatial_types_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/scan/spatial_types_02.adm
rename to asterix-app/src/test/resources/runtimets/results/scan/spatial_types_02/spatial_types_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01.adm b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01.adm
deleted file mode 100644
index 013a0cb..0000000
--- a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "id": 10, "date": date("2011-01-27+00:00"), "time": time("12:20:30:000+00:00"), "datetime": datetime("1951-12-27T12:20:30:000+00:00"), "duration": duration("D30Y10M15DT10H30M50S"), "date2": date("2011-01-27-05:00"), "time2": time("12:20:30:980-05:00"), "datetime2": datetime("1951-12-27T12:20:30:240-08:45"), "duration2": duration("D0Y10M15DT10H0M50S"), "date3": date("-2011-01-27-05:00"), "time3": time("12:20:30:980+00:00"), "datetime3": datetime("-1951-12-27T12:20:30:240-08:15"), "duration3": duration("-D0Y0M0DT0H0M50S"), "date4": date("-2011-01-27+00:00"), "time4": time("12:20:30:000+00:00"), "datetime4": datetime("-1951-12-27T12:20:30:240+00:00"), "duration4": duration("-D0Y10M0DT0H0M0S"), "date5": date("2011-01-27+00:00"), "time5": time("12:20:30:000+00:00"), "datetime5": datetime("1951-12-27T12:20:30:000+00:00"), "duration5": duration("D30Y10M15DT10H30M50S") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01/temp_types_01.1.adm b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01/temp_types_01.1.adm
new file mode 100644
index 0000000..4ad4f1c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_01/temp_types_01.1.adm
@@ -0,0 +1 @@
+{ "id": 10, "date": date("2011-01-27"), "time": time("12:20:30.000Z"), "datetime": datetime("1951-12-27T12:20:30.000Z"), "duration": duration("P30Y10M15DT10H30M50S"), "date2": date("2011-01-27"), "time2": time("17:20:30.999Z"), "datetime2": datetime("1951-12-27T21:05:30.250Z"), "duration2": duration("P10M15DT10H50S"), "date3": date("-2011-01-27"), "time3": time("12:20:30.999Z"), "datetime3": datetime("-1951-12-27T20:35:30.250Z"), "duration3": duration("-PT50S"), "date4": date("-2011-01-27"), "time4": time("12:20:30.000Z"), "datetime4": datetime("-1951-12-27T12:20:30.250Z"), "duration4": duration("-P10M"), "date5": date("2011-01-27"), "time5": time("12:20:30.000Z"), "datetime5": datetime("1951-12-27T12:20:30.000Z"), "duration5": duration("P30Y10M15DT10H30M50S") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02.adm b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02.adm
deleted file mode 100644
index f87b1e5..0000000
--- a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "id": 10, "date": date("2011-01-27+00:00"), "time": time("12:20:30:000+00:00"), "datetime": datetime("1951-12-27T12:20:30:000+00:00"), "duration": duration("D30Y10M15DT10H30M50S") }
-{ "id": 20, "date": date("2011-01-27-05:00"), "time": time("12:20:30:980-05:00"), "datetime": datetime("1951-12-27T12:20:30:240-08:45"), "duration": duration("D0Y10M15DT10H0M50S") }
-{ "id": 30, "date": date("-2011-01-27-05:00"), "time": time("12:20:30:980+00:00"), "datetime": datetime("-1951-12-27T12:20:30:240-08:15"), "duration": duration("-D0Y0M0DT0H0M50S") }
-{ "id": 40, "date": date("-2011-01-27+00:00"), "time": time("12:20:30:000+00:00"), "datetime": datetime("-1951-12-27T12:20:30:240+00:00"), "duration": duration("-D0Y10M0DT0H0M0S") }
diff --git a/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02/temp_types_02.1.adm b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02/temp_types_02.1.adm
new file mode 100644
index 0000000..f0b6815
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/scan/temp_types_02/temp_types_02.1.adm
@@ -0,0 +1,4 @@
+{ "id": 10, "date": date("2011-01-27"), "time": time("12:20:30.000Z"), "datetime": datetime("1951-12-27T12:20:30.000+00:00"), "duration": duration("P30Y10M15DT10H30M50S") }
+{ "id": 20, "date": date("2011-01-27"), "time": time("17:20:30.999Z"), "datetime": datetime("1951-12-27T12:20:30.240-08:45"), "duration": duration("P10M15DT10H50S") }
+{ "id": 30, "date": date("-2011-01-27"), "time": time("12:20:30.999Z"), "datetime": datetime("-1951-12-27T12:20:30.240-08:15"), "duration": duration("-PT50S") }
+{ "id": 40, "date": date("-2011-01-27"), "time": time("12:20:30.000Z"), "datetime": datetime("-1951-12-27T12:20:30.240+00:00"), "duration": duration("-P10M") }
diff --git a/asterix-app/src/test/resources/runtimets/results/semistructured/count-nullable.adm b/asterix-app/src/test/resources/runtimets/results/semistructured/count-nullable/count-nullable.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/semistructured/count-nullable.adm
rename to asterix-app/src/test/resources/runtimets/results/semistructured/count-nullable/count-nullable.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/semistructured/cust-filter.adm b/asterix-app/src/test/resources/runtimets/results/semistructured/cust-filter/cust-filter.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/semistructured/cust-filter.adm
rename to asterix-app/src/test/resources/runtimets/results/semistructured/cust-filter/cust-filter.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/semistructured/has-param1.adm b/asterix-app/src/test/resources/runtimets/results/semistructured/has-param1/has-param1.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/semistructured/has-param1.adm
rename to asterix-app/src/test/resources/runtimets/results/semistructured/has-param1/has-param1.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_01.adm
deleted file mode 100644
index bd48346..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ true, 3 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_02.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_02.adm
deleted file mode 100644
index a2f763f..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ false, 2147483647 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_03.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_03.adm
deleted file mode 100644
index bd48346..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_03.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ true, 3 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_04.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_04.adm
deleted file mode 100644
index a2f763f..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_04.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ false, 2147483647 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_ints/edit-distance-check_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_ints/edit-distance-check_ints.1.adm
new file mode 100644
index 0000000..9aff56c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_ints/edit-distance-check_ints.1.adm
@@ -0,0 +1,4 @@
+[ true, 3 ]
+[ true, 3 ]
+[ false, 2147483647 ]
+[ false, 2147483647 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_strings/edit-distance-check_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_strings/edit-distance-check_strings.1.adm
new file mode 100644
index 0000000..9aff56c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-check_strings/edit-distance-check_strings.1.adm
@@ -0,0 +1,4 @@
+[ true, 3 ]
+[ true, 3 ]
+[ false, 2147483647 ]
+[ false, 2147483647 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.adm
new file mode 100644
index 0000000..fa1dde6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-list-is-filterable/edit-distance-list-is-filterable.1.adm
@@ -0,0 +1,6 @@
+false
+false
+true
+true
+true
+false
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.adm
new file mode 100644
index 0000000..0b36002
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance-string-is-filterable/edit-distance-string-is-filterable.1.adm
@@ -0,0 +1,20 @@
+false
+false
+false
+false
+true
+true
+true
+true
+true
+true
+false
+false
+true
+true
+true
+true
+true
+true
+false
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_01.adm
deleted file mode 100644
index 00750ed..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-3
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_02.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_02.adm
deleted file mode 100644
index 00750ed..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-3
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_ints/edit-distance_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_ints/edit-distance_ints.1.adm
new file mode 100644
index 0000000..a5c8806
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_ints/edit-distance_ints.1.adm
@@ -0,0 +1,2 @@
+3
+3
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_strings/edit-distance_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_strings/edit-distance_strings.1.adm
new file mode 100644
index 0000000..a5c8806
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/edit-distance_strings/edit-distance_strings.1.adm
@@ -0,0 +1,2 @@
+3
+3
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.adm
new file mode 100644
index 0000000..a218d95
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-edit-distance/fuzzyeq-edit-distance.1.adm
@@ -0,0 +1 @@
+{ "id": 22, "dblpid": "books/acm/kim95/Motro95", "title": "Management of Uncerainty in database Systems.", "authors": "Amihai Motro", "misc": "2002-01-03 457-476 1995 Modern Database Systems db/books/collections/kim95.html#Motro95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/fuzzyeq-similarity-jaccard/fuzzyeq-similarity-jaccard.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/prefix-len-jaccard_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/prefix-len-jaccard/prefix-len-jaccard.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/similarity/prefix-len-jaccard_01.adm
rename to asterix-app/src/test/resources/runtimets/results/similarity/prefix-len-jaccard/prefix-len-jaccard.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_01.adm
deleted file mode 100644
index d3c43af..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ true, 0.7f ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_02.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_02.adm
deleted file mode 100644
index bab8fb3..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ false, 0.0f ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.adm
new file mode 100644
index 0000000..ad2ef2e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_ints/similarity-jaccard-check_ints.1.adm
@@ -0,0 +1,12 @@
+[ true, 0.0f ]
+[ true, 0.0f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.05f ]
+[ true, 0.05f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_query/similarity-jaccard-check_query.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.adm
new file mode 100644
index 0000000..93b588a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-check_strings/similarity-jaccard-check_strings.1.adm
@@ -0,0 +1,16 @@
+[ true, 0.0f ]
+[ true, 0.0f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.05f ]
+[ true, 0.05f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix-check_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix-check_01.adm
rename to asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix-check/similarity-jaccard-prefix-check.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix_01.adm
rename to asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-prefix/similarity-jaccard-prefix.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.adm
new file mode 100644
index 0000000..2a05d33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_ints/similarity-jaccard-sorted-check_ints.1.adm
@@ -0,0 +1,8 @@
+[ true, 0.0f ]
+[ true, 0.0f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_query/similarity-jaccard-sorted-check_query.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.adm
new file mode 100644
index 0000000..ef4b0f9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted-check_strings/similarity-jaccard-sorted-check_strings.1.adm
@@ -0,0 +1,12 @@
+[ true, 0.0f ]
+[ true, 0.0f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
+[ true, 0.7f ]
+[ true, 0.7f ]
+[ false, 0.0f ]
+[ false, 0.0f ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.adm
new file mode 100644
index 0000000..0577394
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_ints/similarity-jaccard-sorted_ints.1.adm
@@ -0,0 +1,4 @@
+0.0f
+0.0f
+0.7f
+0.7f
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_query/similarity-jaccard-sorted_query.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.adm
new file mode 100644
index 0000000..427ee87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard-sorted_strings/similarity-jaccard-sorted_strings.1.adm
@@ -0,0 +1,6 @@
+0.0f
+0.0f
+0.7f
+0.7f
+0.7f
+0.7f
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_01.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_01.adm
deleted file mode 100644
index 31c8d6d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-0.7f
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_02.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_02.adm
deleted file mode 100644
index 118f6bd..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_02.adm
+++ /dev/null
@@ -1 +0,0 @@
-0.0f
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_03.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_03.adm
deleted file mode 100644
index 118f6bd..0000000
--- a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_03.adm
+++ /dev/null
@@ -1 +0,0 @@
-0.0f
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.adm
new file mode 100644
index 0000000..427ee87
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_ints/similarity-jaccard_ints.1.adm
@@ -0,0 +1,6 @@
+0.0f
+0.0f
+0.7f
+0.7f
+0.7f
+0.7f
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_query/similarity-jaccard_query.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_query/similarity-jaccard_query.1.adm
new file mode 100644
index 0000000..5bf6ae0
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_query/similarity-jaccard_query.1.adm
@@ -0,0 +1 @@
+{ "id": 9, "dblpid": "books/acm/kim95/Kaiser95", "title": "Cooperative Transactions for Multiuser Environments.", "authors": "Gail E. Kaiser", "misc": "2002-01-03 409-433 1995 Modern Database Systems db/books/collections/kim95.html#Kaiser95" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.adm b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.adm
new file mode 100644
index 0000000..b261912
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/similarity/similarity-jaccard_strings/similarity-jaccard_strings.1.adm
@@ -0,0 +1,8 @@
+0.0f
+0.0f
+0.7f
+0.7f
+0.7f
+0.7f
+0.7f
+0.7f
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation-with-filtering.adm b/asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation-with-filtering.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation-with-filtering/cell-aggregation-with-filtering.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation.adm b/asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation/cell-aggregation.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/cell-aggregation/cell-aggregation.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle.adm
deleted file mode 100644
index c294669..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle.adm
+++ /dev/null
@@ -1,19 +0,0 @@
-{ "id": 1 }
-{ "id": 2 }
-{ "id": 3 }
-{ "id": 4 }
-{ "id": 5 }
-{ "id": 6 }
-{ "id": 7 }
-{ "id": 8 }
-{ "id": 9 }
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 12 }
-{ "id": 13 }
-{ "id": 14 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 17 }
-{ "id": 18 }
-{ "id": 19 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle/circle-intersect-circle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle/circle-intersect-circle.1.adm
new file mode 100644
index 0000000..af533e3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/circle-intersect-circle/circle-intersect-circle.1.adm
@@ -0,0 +1,6 @@
+{ "id": 1 }
+{ "id": 2 }
+{ "id": 3 }
+{ "id": 6 }
+{ "id": 9 }
+{ "id": 11 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/circle_accessor/circle_accessor.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/circle_accessor/circle_accessor.1.adm
new file mode 100644
index 0000000..8848521
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/circle_accessor/circle_accessor.1.adm
@@ -0,0 +1 @@
+{ "circle-radius": 1.0d, "circle-center": point("6.0,3.0") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/create-rtree-index/create-rtree-index.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/create-rtree-index/create-rtree-index.1.adm
new file mode 100644
index 0000000..6a2a2c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/create-rtree-index/create-rtree-index.1.adm
@@ -0,0 +1,21 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points.adm b/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points.adm
deleted file mode 100644
index 2dc063d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points.adm
+++ /dev/null
@@ -1,19 +0,0 @@
-{ "id": 1, "distance": 8.112336284942828d }
-{ "id": 2, "distance": 85.14105547296204d }
-{ "id": 3, "distance": 90.45204911653468d }
-{ "id": 4, "distance": 90.45204911653468d }
-{ "id": 5, "distance": 90.45204911653468d }
-{ "id": 6, "distance": 90.45204911653468d }
-{ "id": 7, "distance": 90.45204911653468d }
-{ "id": 8, "distance": 90.45204911653468d }
-{ "id": 9, "distance": 5.0990195135927845d }
-{ "id": 10, "distance": 3.605551275463989d }
-{ "id": 11, "distance": 4.9d }
-{ "id": 12, "distance": 6.708203932499369d }
-{ "id": 13, "distance": 7.0710678118654755d }
-{ "id": 14, "distance": 7.212489168102785d }
-{ "id": 15, "distance": 3.605551275463989d }
-{ "id": 16, "distance": 3.605551275463989d }
-{ "id": 17, "distance": 8.112336284942828d }
-{ "id": 18, "distance": 3.605551275463989d }
-{ "id": 19, "distance": 3.605551275463989d }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points/distance-between-points.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points/distance-between-points.1.adm
new file mode 100644
index 0000000..be5e2b4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/distance-between-points/distance-between-points.1.adm
@@ -0,0 +1,21 @@
+{ "id": 1, "distance": 8.112336284942828d }
+{ "id": 2, "distance": 85.14105547296204d }
+{ "id": 3, "distance": 90.45204911653468d }
+{ "id": 4, "distance": 90.45204911653468d }
+{ "id": 5, "distance": 90.45204911653468d }
+{ "id": 6, "distance": 90.45204911653468d }
+{ "id": 7, "distance": 90.45204911653468d }
+{ "id": 8, "distance": 90.45204911653468d }
+{ "id": 9, "distance": 5.0990195135927845d }
+{ "id": 10, "distance": 3.605551275463989d }
+{ "id": 11, "distance": 4.9d }
+{ "id": 12, "distance": 6.708203932499369d }
+{ "id": 13, "distance": 7.0710678118654755d }
+{ "id": 14, "distance": 7.212489168102785d }
+{ "id": 15, "distance": 3.605551275463989d }
+{ "id": 16, "distance": 3.605551275463989d }
+{ "id": 17, "distance": 8.112336284942828d }
+{ "id": 18, "distance": 3.605551275463989d }
+{ "id": 19, "distance": 3.605551275463989d }
+{ "id": 20, "distance": 5.0d }
+{ "id": 21, "distance": 5.0d }
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle.adm
deleted file mode 100644
index b61f96b..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle.adm
+++ /dev/null
@@ -1,11 +0,0 @@
-{ "id": 2 }
-{ "id": 3 }
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 12 }
-{ "id": 13 }
-{ "id": 14 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 18 }
-{ "id": 19 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle/line-intersect-circle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle/line-intersect-circle.1.adm
new file mode 100644
index 0000000..3ed757e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-circle/line-intersect-circle.1.adm
@@ -0,0 +1,14 @@
+{ "id": 2 }
+{ "id": 3 }
+{ "id": 6 }
+{ "id": 7 }
+{ "id": 10 }
+{ "id": 11 }
+{ "id": 12 }
+{ "id": 13 }
+{ "id": 14 }
+{ "id": 15 }
+{ "id": 16 }
+{ "id": 18 }
+{ "id": 19 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-line.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-line/line-intersect-line.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-line.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-line/line-intersect-line.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-polygon.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-polygon/line-intersect-polygon.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-polygon.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-polygon/line-intersect-polygon.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle.adm
deleted file mode 100644
index bea5d1d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle.adm
+++ /dev/null
@@ -1,13 +0,0 @@
-{ "id": 1 }
-{ "id": 2 }
-{ "id": 3 }
-{ "id": 7 }
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 12 }
-{ "id": 13 }
-{ "id": 14 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 18 }
-{ "id": 19 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle/line-intersect-rectangle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle/line-intersect-rectangle.1.adm
new file mode 100644
index 0000000..59506d2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/line-intersect-rectangle/line-intersect-rectangle.1.adm
@@ -0,0 +1,14 @@
+{ "id": 1 }
+{ "id": 2 }
+{ "id": 3 }
+{ "id": 7 }
+{ "id": 10 }
+{ "id": 11 }
+{ "id": 12 }
+{ "id": 13 }
+{ "id": 14 }
+{ "id": 15 }
+{ "id": 16 }
+{ "id": 18 }
+{ "id": 19 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/line_accessor/line_accessor.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/line_accessor/line_accessor.1.adm
new file mode 100644
index 0000000..c6d1c06
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/line_accessor/line_accessor.1.adm
@@ -0,0 +1,2 @@
+point("100.6,999.4")
+point("-872.0,-876.9")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-equals-point.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-equals-point/point-equals-point.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/point-equals-point.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/point-equals-point/point-equals-point.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle.adm
deleted file mode 100644
index ad75861..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle.adm
+++ /dev/null
@@ -1,6 +0,0 @@
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 18 }
-{ "id": 19 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle/point-in-circle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle/point-in-circle.1.adm
new file mode 100644
index 0000000..f8d6259
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-circle/point-in-circle.1.adm
@@ -0,0 +1,8 @@
+{ "id": 10 }
+{ "id": 11 }
+{ "id": 15 }
+{ "id": 16 }
+{ "id": 18 }
+{ "id": 19 }
+{ "id": 20 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon.adm
deleted file mode 100644
index 2ffad7c..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon.adm
+++ /dev/null
@@ -1 +0,0 @@
-{ "id": 12 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon/point-in-polygon.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon/point-in-polygon.1.adm
new file mode 100644
index 0000000..d22217a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-polygon/point-in-polygon.1.adm
@@ -0,0 +1,2 @@
+{ "id": 12 }
+{ "id": 20 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle.adm
deleted file mode 100644
index bc9537a..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-{ "id": 1 }
-{ "id": 10 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle/point-in-rectangle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle/point-in-rectangle.1.adm
new file mode 100644
index 0000000..424f77a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/point-in-rectangle/point-in-rectangle.1.adm
@@ -0,0 +1,4 @@
+{ "id": 1 }
+{ "id": 10 }
+{ "id": 20 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line.adm
deleted file mode 100644
index d5bf8d4..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line.adm
+++ /dev/null
@@ -1,4 +0,0 @@
-{ "id": 1 }
-{ "id": 9 }
-{ "id": 10 }
-{ "id": 17 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line/point-on-line.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line/point-on-line.1.adm
new file mode 100644
index 0000000..f737ee8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/point-on-line/point-on-line.1.adm
@@ -0,0 +1,5 @@
+{ "id": 1 }
+{ "id": 9 }
+{ "id": 10 }
+{ "id": 17 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/point_accessor/point_accessor.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/point_accessor/point_accessor.1.adm
new file mode 100644
index 0000000..0fa3fe4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/point_accessor/point_accessor.1.adm
@@ -0,0 +1 @@
+{ "x-coordinate": 2.3d, "y-coordinate": 5.0d }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle.adm
deleted file mode 100644
index e5293c9..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle.adm
+++ /dev/null
@@ -1,10 +0,0 @@
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 12 }
-{ "id": 13 }
-{ "id": 14 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 17 }
-{ "id": 18 }
-{ "id": 19 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle/polygon-intersect-circle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle/polygon-intersect-circle.1.adm
new file mode 100644
index 0000000..bb9a070
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-circle/polygon-intersect-circle.1.adm
@@ -0,0 +1,11 @@
+{ "id": 10 }
+{ "id": 11 }
+{ "id": 12 }
+{ "id": 13 }
+{ "id": 14 }
+{ "id": 15 }
+{ "id": 16 }
+{ "id": 17 }
+{ "id": 18 }
+{ "id": 19 }
+{ "id": 20 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-polygon.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-polygon/polygon-intersect-polygon.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-polygon.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-polygon/polygon-intersect-polygon.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle.adm
deleted file mode 100644
index a602b8d..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle.adm
+++ /dev/null
@@ -1,8 +0,0 @@
-{ "id": 1 }
-{ "id": 2 }
-{ "id": 3 }
-{ "id": 4 }
-{ "id": 6 }
-{ "id": 9 }
-{ "id": 12 }
-{ "id": 17 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.adm
new file mode 100644
index 0000000..aa83a89
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/polygon-intersect-rectangle/polygon-intersect-rectangle.1.adm
@@ -0,0 +1,10 @@
+{ "id": 1 }
+{ "id": 2 }
+{ "id": 3 }
+{ "id": 4 }
+{ "id": 6 }
+{ "id": 9 }
+{ "id": 12 }
+{ "id": 17 }
+{ "id": 20 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/polygon_accessor/polygon_accessor.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/polygon_accessor/polygon_accessor.1.adm
new file mode 100644
index 0000000..12685ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/polygon_accessor/polygon_accessor.1.adm
@@ -0,0 +1,4 @@
+point("1.0,1.0")
+point("2.0,2.0")
+point("3.0,3.0")
+point("4.0,4.0")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle.adm
deleted file mode 100644
index 62f32d0..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle.adm
+++ /dev/null
@@ -1,18 +0,0 @@
-{ "id": 1 }
-{ "id": 2 }
-{ "id": 3 }
-{ "id": 4 }
-{ "id": 5 }
-{ "id": 6 }
-{ "id": 8 }
-{ "id": 9 }
-{ "id": 10 }
-{ "id": 11 }
-{ "id": 12 }
-{ "id": 13 }
-{ "id": 14 }
-{ "id": 15 }
-{ "id": 16 }
-{ "id": 17 }
-{ "id": 18 }
-{ "id": 19 }
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.adm
new file mode 100644
index 0000000..260b1bf
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-circle/rectangle-intersect-circle.1.adm
@@ -0,0 +1,20 @@
+{ "id": 1 }
+{ "id": 2 }
+{ "id": 3 }
+{ "id": 4 }
+{ "id": 5 }
+{ "id": 6 }
+{ "id": 8 }
+{ "id": 9 }
+{ "id": 10 }
+{ "id": 11 }
+{ "id": 12 }
+{ "id": 13 }
+{ "id": 14 }
+{ "id": 15 }
+{ "id": 16 }
+{ "id": 17 }
+{ "id": 18 }
+{ "id": 19 }
+{ "id": 20 }
+{ "id": 21 }
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle.adm b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle.adm
deleted file mode 100644
index e18550c..0000000
--- a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-{ "id": 1 }
-{ "id": 7 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.adm
new file mode 100644
index 0000000..fed2dc7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle-intersect-rectangle/rectangle-intersect-rectangle.1.adm
@@ -0,0 +1,3 @@
+{ "id": 1 }
+{ "id": 7 }
+{ "id": 21 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/rectangle_accessor/rectangle_accessor.1.adm b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle_accessor/rectangle_accessor.1.adm
new file mode 100644
index 0000000..f198dff
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/rectangle_accessor/rectangle_accessor.1.adm
@@ -0,0 +1,2 @@
+point("9.2,49.0")
+point("77.8,111.1")
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/spatial-area.adm b/asterix-app/src/test/resources/runtimets/results/spatial/spatial-area/spatial-area.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/spatial/spatial-area.adm
rename to asterix-app/src/test/resources/runtimets/results/spatial/spatial-area/spatial-area.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string1/codepoint-to-string1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string1/codepoint-to-string1.1.adm
new file mode 100644
index 0000000..fdbb861
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string1/codepoint-to-string1.1.adm
@@ -0,0 +1 @@
+{ "result1": "中文字符" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string2/codepoint-to-string2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string2/codepoint-to-string2.1.adm
new file mode 100644
index 0000000..8ab1bd7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/codepoint-to-string2/codepoint-to-string2.1.adm
@@ -0,0 +1 @@
+{ "f1": "", "f2": "abc" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/concat_01/concat_01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/concat_01/concat_01.1.adm
new file mode 100644
index 0000000..cea6e76
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/concat_01/concat_01.1.adm
@@ -0,0 +1 @@
+{ "result1": "aa25991bb31526", "result2": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/concat_02/concat_02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/concat_02/concat_02.1.adm
new file mode 100644
index 0000000..ba4be9f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/concat_02/concat_02.1.adm
@@ -0,0 +1 @@
+{ "a": null, "b": null, "c": null }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/string/contains_01.adm b/asterix-app/src/test/resources/runtimets/results/string/contains_01/contains_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/string/contains_01.adm
rename to asterix-app/src/test/resources/runtimets/results/string/contains_01/contains_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/cpttostr01/cpttostr01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/cpttostr01/cpttostr01.1.adm
new file mode 100644
index 0000000..041e3f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/cpttostr01/cpttostr01.1.adm
@@ -0,0 +1 @@
+"0-9,A-Z"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/cpttostr02/cpttostr02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/cpttostr02/cpttostr02.1.adm
new file mode 100644
index 0000000..98b52bd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/cpttostr02/cpttostr02.1.adm
@@ -0,0 +1 @@
+{ "c1": "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "c2": "abcdefghijklmnopqrstuvwxyz", "c3": "!\"#$%&'()*+,-./01234567?@" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/cpttostr04/cpttostr04.1.adm b/asterix-app/src/test/resources/runtimets/results/string/cpttostr04/cpttostr04.1.adm
new file mode 100644
index 0000000..8dbc300
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/cpttostr04/cpttostr04.1.adm
@@ -0,0 +1 @@
+{ "c1": "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/end-with1/end-with1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/end-with1/end-with1.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/end-with1/end-with1.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/end-with2/end-with2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/end-with2/end-with2.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/end-with2/end-with2.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/end-with3/end-with3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/end-with3/end-with3.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/end-with3/end-with3.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/end-with4/end-with4.1.adm b/asterix-app/src/test/resources/runtimets/results/string/end-with4/end-with4.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/end-with4/end-with4.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/end-with5/end-with5.1.adm b/asterix-app/src/test/resources/runtimets/results/string/end-with5/end-with5.1.adm
new file mode 100644
index 0000000..c13d3dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/end-with5/end-with5.1.adm
@@ -0,0 +1 @@
+{ "f1": true, "f2": false, "f3": true, "f4": false, "f5": true, "f6": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/ends-with_01.adm b/asterix-app/src/test/resources/runtimets/results/string/ends-with_01/ends-with_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/string/ends-with_01.adm
rename to asterix-app/src/test/resources/runtimets/results/string/ends-with_01/ends-with_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/endwith02/endwith02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/endwith02/endwith02.1.adm
new file mode 100644
index 0000000..913c84a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/endwith02/endwith02.1.adm
@@ -0,0 +1,6 @@
+false
+false
+true
+true
+true
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/string/endwith03/endwith03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/endwith03/endwith03.1.adm
new file mode 100644
index 0000000..c90ce70
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/endwith03/endwith03.1.adm
@@ -0,0 +1,4 @@
+{ "name": "I am Jones" }
+{ "name": "Jim Jones" }
+{ "name": "Marian Jones" }
+{ "name": "Phil Jones" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/length_01/length_01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/length_01/length_01.1.adm
new file mode 100644
index 0000000..45a976e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/length_01/length_01.1.adm
@@ -0,0 +1 @@
+{ "result1": 6, "result2": 0, "result3": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/length_02/length_02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/length_02/length_02.1.adm
new file mode 100644
index 0000000..930236d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/length_02/length_02.1.adm
@@ -0,0 +1,8 @@
+3
+6
+6
+5
+5
+5
+7
+6
diff --git a/asterix-app/src/test/resources/runtimets/results/string/like_01.adm b/asterix-app/src/test/resources/runtimets/results/string/like_01/like_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/string/like_01.adm
rename to asterix-app/src/test/resources/runtimets/results/string/like_01/like_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/like_null.adm b/asterix-app/src/test/resources/runtimets/results/string/like_null/like_null.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/string/like_null.adm
rename to asterix-app/src/test/resources/runtimets/results/string/like_null/like_null.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/lowercase/lowercase.1.adm b/asterix-app/src/test/resources/runtimets/results/string/lowercase/lowercase.1.adm
new file mode 100644
index 0000000..a20b9aa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/lowercase/lowercase.1.adm
@@ -0,0 +1 @@
+{ "result1": "hellow", "result2": "", "result3": null }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches02/matches02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches02/matches02.1.adm
new file mode 100644
index 0000000..b02ee08
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches02/matches02.1.adm
@@ -0,0 +1 @@
+{ "c3": true, "c4": true, "c5": true, "c6": true, "c7": true, "c8": true, "c9": false, "c10": true, "c11": true, "c12": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches03/matches03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches03/matches03.1.adm
new file mode 100644
index 0000000..aa3f9c8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches03/matches03.1.adm
@@ -0,0 +1,13 @@
+true
+true
+false
+false
+true
+true
+true
+false
+true
+true
+false
+false
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches04/matches04.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches04/matches04.1.adm
new file mode 100644
index 0000000..814ccfe
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches04/matches04.1.adm
@@ -0,0 +1,7 @@
+true
+true
+true
+true
+true
+true
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches05/matches05.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches05/matches05.1.adm
new file mode 100644
index 0000000..f2c3846
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches05/matches05.1.adm
@@ -0,0 +1,4 @@
+{ "fname": "Test", "lname": "Test", "id": 123 }
+{ "fname": "Testa", "lname": "Test", "id": 124 }
+{ "fname": "Test1", "lname": "Test1", "id": 125 }
+{ "fname": "Test2", "lname": "Test2", "id": 127 }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches06/matches06.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches06/matches06.1.adm
new file mode 100644
index 0000000..3252af9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches06/matches06.1.adm
@@ -0,0 +1,15 @@
+true
+false
+true
+true
+true
+false
+true
+false
+false
+true
+true
+true
+true
+false
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches1/matches1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches1/matches1.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches1/matches1.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches11/matches11.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches11/matches11.1.adm
new file mode 100644
index 0000000..440a996
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches11/matches11.1.adm
@@ -0,0 +1,5 @@
+false
+false
+false
+false
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches2/matches2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches2/matches2.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches2/matches2.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches21/matches21.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches21/matches21.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches21/matches21.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches22/matches22.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches22/matches22.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches22/matches22.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches23/matches23.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches23/matches23.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches23/matches23.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/matches3/matches3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/matches3/matches3.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/matches3/matches3.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/comparison/int64.adm b/asterix-app/src/test/resources/runtimets/results/string/matchesnull/matchesnull.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/comparison/int64.adm
copy to asterix-app/src/test/resources/runtimets/results/string/matchesnull/matchesnull.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/replace1/replace1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/replace1/replace1.1.adm
new file mode 100644
index 0000000..5f992ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/replace1/replace1.1.adm
@@ -0,0 +1 @@
+{ "result1": "brcdbr", "result2": "abbraccaddabbra", "result3": "carted" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/replace2/replace2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/replace2/replace2.1.adm
new file mode 100644
index 0000000..fa45140
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/replace2/replace2.1.adm
@@ -0,0 +1 @@
+{ "result1": "a*cada*" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/replace21/replace21.1.adm b/asterix-app/src/test/resources/runtimets/results/string/replace21/replace21.1.adm
new file mode 100644
index 0000000..9fd2e6a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/replace21/replace21.1.adm
@@ -0,0 +1 @@
+{ "result1": "abracadabra", "result2": "akkkcadakkk", "result3": "kkk" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/replace22/replace22.1.adm b/asterix-app/src/test/resources/runtimets/results/string/replace22/replace22.1.adm
new file mode 100644
index 0000000..21ca784
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/replace22/replace22.1.adm
@@ -0,0 +1 @@
+{ "result1": "abracadabra", "result2": "aXXXcadaXXX", "result3": null, "result4": "aXXXcadaXXX", "result5": "XXXaXXXbXXXrXXXaXXXcXXXaXXXdXXXaXXXbXXXrXXXaXXX", "result6": "acada", "result7": "acada", "result8": "XXXaXXXbXXXrXXXaXXXcXXXaXXXdXXXaXXXbXXXrXXXaXXX" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/replace3/replace3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/replace3/replace3.1.adm
new file mode 100644
index 0000000..3882682
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/replace3/replace3.1.adm
@@ -0,0 +1 @@
+{ "result1": "*" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/start-with1/start-with1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/start-with1/start-with1.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/start-with1/start-with1.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/start-with2/start-with2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/start-with2/start-with2.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/start-with2/start-with2.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/start-with3/start-with3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/start-with3/start-with3.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/start-with3/start-with3.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/start-with4/start-with4.1.adm b/asterix-app/src/test/resources/runtimets/results/string/start-with4/start-with4.1.adm
new file mode 100644
index 0000000..c13d3dc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/start-with4/start-with4.1.adm
@@ -0,0 +1 @@
+{ "f1": true, "f2": false, "f3": true, "f4": false, "f5": true, "f6": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/start-with5/start-with5.1.adm b/asterix-app/src/test/resources/runtimets/results/string/start-with5/start-with5.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/start-with5/start-with5.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/starts-with_01.adm b/asterix-app/src/test/resources/runtimets/results/string/starts-with_01.adm
deleted file mode 100644
index f849211..0000000
--- a/asterix-app/src/test/resources/runtimets/results/string/starts-with_01.adm
+++ /dev/null
@@ -1 +0,0 @@
-[ false, true ]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/string/ends-with_01.adm b/asterix-app/src/test/resources/runtimets/results/string/starts-with_01/starts-with_01.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/string/ends-with_01.adm
copy to asterix-app/src/test/resources/runtimets/results/string/starts-with_01/starts-with_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/startwith02/startwith02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/startwith02/startwith02.1.adm
new file mode 100644
index 0000000..39acf48
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/startwith02/startwith02.1.adm
@@ -0,0 +1,14 @@
+true
+false
+true
+false
+false
+true
+true
+false
+true
+false
+true
+true
+false
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/string/startwith03/startwith03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/startwith03/startwith03.1.adm
new file mode 100644
index 0000000..ccb9311
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/startwith03/startwith03.1.adm
@@ -0,0 +1,5 @@
+{ "name": "John Doe" }
+{ "name": "John Smith" }
+{ "name": "John Wayne" }
+{ "name": "Johnny Walker" }
+{ "name": "Johnson Ben" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strconcat01/strconcat01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strconcat01/strconcat01.1.adm
new file mode 100644
index 0000000..b597701
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strconcat01/strconcat01.1.adm
@@ -0,0 +1,9 @@
+{ "Full Name": "Young SeokKim" }
+{ "Full Name": "AlexBehm" }
+{ "Full Name": "JohnSmith" }
+{ "Full Name": "BobJones" }
+{ "Full Name": "MikeCarey" }
+{ "Full Name": "ChenLi" }
+{ "Full Name": "RamanGrover" }
+{ "Full Name": "YingyiBu" }
+{ "Full Name": "VinayakBorkar" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strconcat02/strconcat02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strconcat02/strconcat02.1.adm
new file mode 100644
index 0000000..38f2315
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strconcat02/strconcat02.1.adm
@@ -0,0 +1,3 @@
+"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+" ab  cdefgpoqrst "
+"This is a testand all tests must passand life is good..."
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-concat1/string-concat1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-concat1/string-concat1.1.adm
new file mode 100644
index 0000000..a5becc3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-concat1/string-concat1.1.adm
@@ -0,0 +1 @@
+{ "result1": "aa25991bb31526" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-equal-true1/string-equal-true1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-equal-true1/string-equal-true1.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-equal-true1/string-equal-true1.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-equal1/string-equal1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-equal1/string-equal1.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-equal1/string-equal1.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-equal2/string-equal2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-equal2/string-equal2.1.adm
new file mode 100644
index 0000000..538da31
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-equal2/string-equal2.1.adm
@@ -0,0 +1 @@
+{ "result1": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-equal3/string-equal3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-equal3/string-equal3.1.adm
new file mode 100644
index 0000000..ea9ca72
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-equal3/string-equal3.1.adm
@@ -0,0 +1 @@
+{ "result1": false }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-equal4/string-equal4.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-equal4/string-equal4.1.adm
new file mode 100644
index 0000000..71a9bb6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-equal4/string-equal4.1.adm
@@ -0,0 +1 @@
+{ "result1": true, "result3": false, "result4": false, "result5": true }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-join1/string-join1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-join1/string-join1.1.adm
new file mode 100644
index 0000000..7276381
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-join1/string-join1.1.adm
@@ -0,0 +1 @@
+{ "result0": "aa::25991::bb::31526", "result1": "aa25991bb31526" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint/string-to-codepoint.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint/string-to-codepoint.1.adm
new file mode 100644
index 0000000..c67c60e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint/string-to-codepoint.1.adm
@@ -0,0 +1 @@
+{ "result1": [ 97, 98, 99, 100 ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint1/string-to-codepoint1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint1/string-to-codepoint1.1.adm
new file mode 100644
index 0000000..46eca36
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint1/string-to-codepoint1.1.adm
@@ -0,0 +1 @@
+{ "result1": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strlen02/strlen02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strlen02/strlen02.1.adm
new file mode 100644
index 0000000..46e26f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strlen02/strlen02.1.adm
@@ -0,0 +1,6 @@
+21
+21
+21
+25
+29
+28
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strlen03/strlen03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strlen03/strlen03.1.adm
new file mode 100644
index 0000000..368bdb9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strlen03/strlen03.1.adm
@@ -0,0 +1,12 @@
+13
+17
+5
+8
+5
+4
+14
+10
+7
+6
+5
+15
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strtocpt01/strtocpt01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strtocpt01/strtocpt01.1.adm
new file mode 100644
index 0000000..3308db7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strtocpt01/strtocpt01.1.adm
@@ -0,0 +1 @@
+[ 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 48 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strtocpt02/strtocpt02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strtocpt02/strtocpt02.1.adm
new file mode 100644
index 0000000..30602ee
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strtocpt02/strtocpt02.1.adm
@@ -0,0 +1 @@
+[ 34, 39, 45, 61, 95, 43, 124, 92, 44, 46, 47, 60, 62, 63, 58, 59, 126, 96 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/string/strtocpt03/strtocpt03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/strtocpt03/strtocpt03.1.adm
new file mode 100644
index 0000000..9f30023
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/strtocpt03/strtocpt03.1.adm
@@ -0,0 +1 @@
+[ 33, 64, 35, 36, 37, 94, 38, 42, 40, 41 ]
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substr01/substr01.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substr01/substr01.1.adm
new file mode 100644
index 0000000..ac9dedd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substr01/substr01.1.adm
@@ -0,0 +1 @@
+{ "str2": "ld", "str4": "g", "str6": "", "str8": "This is a test string", "str10": "This is a test string", "str13": "gThis is a another test string", "str14": "Irvine" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substr04/substr04.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substr04/substr04.1.adm
new file mode 100644
index 0000000..fcd3396
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substr04/substr04.1.adm
@@ -0,0 +1,10 @@
+"world"
+"hello world"
+"llo world"
+"CD"
+"ABCD"
+"Irvine"
+"UC Irvine"
+"UC Irvine"
+"Irvine"
+"Irvine"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substr05/substr05.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substr05/substr05.1.adm
new file mode 100644
index 0000000..52a2718
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substr05/substr05.1.adm
@@ -0,0 +1,8 @@
+"Berkeley"
+"Irvine"
+"LA"
+"Riverside"
+"San Diego"
+"Santa Barbara"
+"Austin "
+"Dallas"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substr06/substr06.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substr06/substr06.1.adm
new file mode 100644
index 0000000..52a2718
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substr06/substr06.1.adm
@@ -0,0 +1,8 @@
+"Berkeley"
+"Irvine"
+"LA"
+"Riverside"
+"San Diego"
+"Santa Barbara"
+"Austin "
+"Dallas"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-after-1/substring-after-1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-after-1/substring-after-1.1.adm
new file mode 100644
index 0000000..197a7af
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-after-1/substring-after-1.1.adm
@@ -0,0 +1 @@
+{ "result1": "low" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-after-2/substring-after-2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-after-2/substring-after-2.1.adm
new file mode 100644
index 0000000..04393a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-after-2/substring-after-2.1.adm
@@ -0,0 +1 @@
+{ "result1": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-after-3/substring-after-3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-after-3/substring-after-3.1.adm
new file mode 100644
index 0000000..04393a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-after-3/substring-after-3.1.adm
@@ -0,0 +1 @@
+{ "result1": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-after-4/substring-after-4.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-after-4/substring-after-4.1.adm
new file mode 100644
index 0000000..9406ef5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-after-4/substring-after-4.1.adm
@@ -0,0 +1 @@
+{ "result1": "HEllow", "result2": "HEllow", "result3": "", "result4": "", "result5": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-before-1/substring-before-1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-before-1/substring-before-1.1.adm
new file mode 100644
index 0000000..1c6a7d7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-before-1/substring-before-1.1.adm
@@ -0,0 +1 @@
+{ "result1": "HE" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-before-2/substring-before-2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-before-2/substring-before-2.1.adm
new file mode 100644
index 0000000..04393a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-before-2/substring-before-2.1.adm
@@ -0,0 +1 @@
+{ "result1": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring-before-3/substring-before-3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring-before-3/substring-before-3.1.adm
new file mode 100644
index 0000000..9ce64e4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring-before-3/substring-before-3.1.adm
@@ -0,0 +1 @@
+{ "result1": "", "result2": "", "result3": "", "result4": "", "result5": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring2-1/substring2-1.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring2-1/substring2-1.1.adm
new file mode 100644
index 0000000..411e803
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring2-1/substring2-1.1.adm
@@ -0,0 +1 @@
+{ "result1": "Ellow" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring2-2/substring2-2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring2-2/substring2-2.1.adm
new file mode 100644
index 0000000..5b0c7b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring2-2/substring2-2.1.adm
@@ -0,0 +1 @@
+{ "result1": "HEllow" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring2-3/substring2-3.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring2-3/substring2-3.1.adm
new file mode 100644
index 0000000..04393a4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring2-3/substring2-3.1.adm
@@ -0,0 +1 @@
+{ "result1": "" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring2-4/substring2-4.1.adm b/asterix-app/src/test/resources/runtimets/results/string/substring2-4/substring2-4.1.adm
new file mode 100644
index 0000000..5b0c7b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/substring2-4/substring2-4.1.adm
@@ -0,0 +1 @@
+{ "result1": "HEllow" }
diff --git a/asterix-app/src/test/resources/runtimets/results/string/substring_01.adm b/asterix-app/src/test/resources/runtimets/results/string/substring_01/substring_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/string/substring_01.adm
rename to asterix-app/src/test/resources/runtimets/results/string/substring_01/substring_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/toLowerCase02/toLowerCase02.1.adm b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase02/toLowerCase02.1.adm
new file mode 100644
index 0000000..65dfed7
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase02/toLowerCase02.1.adm
@@ -0,0 +1,12 @@
+"a   b  c  d  e  f  g"
+"a b c d e f g h i j k l m n o p q r s t u v w x y z"
+"abcdefghij klmnop qrstu vwxyz"
+"abcdefghijklmnopqrstuvwxyz"
+"this is a test string"
+"smaller string"
+"abcd"
+"abcdefghijklmnopqrstuvwxyz"
+"abcdefghijkabcdefghijk"
+"hijklmnopqrhijklmnopqr"
+"abcdefghijklmnopqrstuvwxyz01234"
+"a33b2cd1ef78ghijk123lmnopqrstuvw3x2y01035z"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/toLowerCase03/toLowerCase03.1.adm b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase03/toLowerCase03.1.adm
new file mode 100644
index 0000000..b6d7e8a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase03/toLowerCase03.1.adm
@@ -0,0 +1,12 @@
+"beckham david"
+"cristiano ronaldo"
+"henry"
+"maradona"
+"messi"
+"pele"
+"roberto baggio"
+"ronaldinho"
+"ronaldo"
+"rooney"
+"tevez"
+"zinadine zidane"
diff --git a/asterix-app/src/test/resources/runtimets/results/string/toLowerCase04/toLowerCase04.1.adm b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase04/toLowerCase04.1.adm
new file mode 100644
index 0000000..2b33ad2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/toLowerCase04/toLowerCase04.1.adm
@@ -0,0 +1,2 @@
+"abcdefghijklmnopqrstuvwxyz"
+"abcdefghijklmnopqrstuvwxyz"
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/01.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/01/01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/subset-collection/01.adm
rename to asterix-app/src/test/resources/runtimets/results/subset-collection/01/01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/02.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/02/02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/subset-collection/02.adm
rename to asterix-app/src/test/resources/runtimets/results/subset-collection/02/02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/03/03.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/subset-collection/03.adm
rename to asterix-app/src/test/resources/runtimets/results/subset-collection/03/03.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/05.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/05/05.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/subset-collection/05.adm
rename to asterix-app/src/test/resources/runtimets/results/subset-collection/05/05.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/06.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/06/06.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/subset-collection/06.adm
rename to asterix-app/src/test/resources/runtimets/results/subset-collection/06/06.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/07.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/07.adm
deleted file mode 100644
index b944734..0000000
--- a/asterix-app/src/test/resources/runtimets/results/subset-collection/07.adm
+++ /dev/null
@@ -1,2 +0,0 @@
-3
-4
diff --git a/asterix-app/src/test/resources/runtimets/results/subset-collection/06.adm b/asterix-app/src/test/resources/runtimets/results/subset-collection/07/07.1.adm
similarity index 100%
copy from asterix-app/src/test/resources/runtimets/results/subset-collection/06.adm
copy to asterix-app/src/test/resources/runtimets/results/subset-collection/07/07.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/accessors/accessors.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/accessors/accessors.1.adm
new file mode 100644
index 0000000..4f36f91
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/accessors/accessors.1.adm
@@ -0,0 +1 @@
+{ "year1": 2010, "year2": 1987, "year3": -1987, "year4": 928, "year5": 1937, "year6": -3, "year7": 9, "month1": 10, "month2": 11, "month3": 11, "month4": 3, "month5": 12, "month6": 1, "day1": 30, "day2": 19, "day3": 19, "day4": 29, "day5": 29, "day6": 634, "hour1": 23, "hour2": 20, "hour3": 5, "hour4": 14, "min1": 49, "min2": 3, "min3": 23, "min4": 28, "second1": 23, "second2": 6, "second3": 34, "second4": 48, "ms1": 938, "ms2": 280, "ms3": 930, "ms4": 94 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/adjust_timezone/adjust_timezone.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/adjust_timezone/adjust_timezone.1.adm
new file mode 100644
index 0000000..1f80fd9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/adjust_timezone/adjust_timezone.1.adm
@@ -0,0 +1 @@
+{ "string1": "04:15:10.327+08:00", "string2": "2010-10-22T18:57:13.329-06:15" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/calendar_duration/calendar_duration.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/calendar_duration/calendar_duration.1.adm
new file mode 100644
index 0000000..957388f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/calendar_duration/calendar_duration.1.adm
@@ -0,0 +1 @@
+{ "cduration1": duration("P20Y3M12DT7H48M21.329S"), "c1": true, "cduration2": duration("-P9M6DT4H45M39.328S"), "c2": true, "cduration3": duration("P8Y6M"), "c3": true, "cduration4": duration("-P21Y7M10DT13H9M42.983S"), "c4": true, "cduration5": duration("P20Y3M12DT7H48M21.329S"), "c5": true, "cduration6": duration("-P9M5DT4H45M39.328S"), "c6": true, "cduration7": duration("P8Y6M"), "c7": true, "cduration8": duration("-P21Y7M10DT13H9M42.983S"), "c8": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/date_functions/date_functions.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/date_functions/date_functions.1.adm
new file mode 100644
index 0000000..a5285d8
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/date_functions/date_functions.1.adm
@@ -0,0 +1 @@
+{ "date1": date("2012-09-17"), "date2": date("1327-12-02"), "date3": date("2012-10-10"), "date4": date("2010-05-17"), "date5": date("1703-08-09"), "duration1": duration("P137216D"), "duration2": duration("-P854D"), "c1": true, "c2": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/datetime_functions/datetime_functions.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/datetime_functions/datetime_functions.1.adm
new file mode 100644
index 0000000..01f3758
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/datetime_functions/datetime_functions.1.adm
@@ -0,0 +1 @@
+{ "datetime1": datetime("1970-01-12T01:33:27.429Z"), "datetime2": datetime("1327-12-02T23:35:49.938Z"), "datetime3": datetime("1327-12-02T23:35:49.938Z"), "duration1": duration("-P234526DT1H57M37.491S"), "c1": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.adm
new file mode 100644
index 0000000..5c40e46
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_delimited_ds/insert_from_delimited_ds.1.adm
@@ -0,0 +1,4 @@
+{ "date": date("-2012-12-12"), "time": time("23:49:12.390Z"), "datetime": datetime("3827-12-12T11:43:29.329Z"), "duration": duration("P20Y19DT4H14M23.34S") }
+{ "date": date("1993-12-12"), "time": time("03:32:00.000Z"), "datetime": datetime("-2012-12-12T05:00:23.071Z"), "duration": duration("P20Y19D") }
+{ "date": date("1839-03-12"), "time": time("12:30:49.382Z"), "datetime": datetime("1012-06-12T00:37:00.000Z"), "duration": duration("PT4H14M23.34S") }
+{ "date": date("0003-11-02"), "time": time("23:19:32.382Z"), "datetime": datetime("2012-12-12T00:00:00.001Z"), "duration": duration("P20Y12DT12H9.34S") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_ext_ds/insert_from_ext_ds.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_ext_ds/insert_from_ext_ds.1.adm
new file mode 100644
index 0000000..b087496
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/insert_from_ext_ds/insert_from_ext_ds.1.adm
@@ -0,0 +1,3 @@
+{ "date": date("-2012-12-12"), "time": time("23:49:12.390Z"), "datetime": datetime("2012-12-12T00:00:00.001Z"), "duration": duration("P20Y19DT4H14M23.34S"), "interval": interval-datetime("2012-12-12T00:00:00.001Z, 2013-08-10T22:10:15.398Z") }
+{ "date": null, "time": time("04:12:12.219Z"), "datetime": datetime("1920-12-21T11:29:18.478Z"), "duration": null, "interval": interval-time("04:29:30.000Z, 07:59:59.999Z") }
+{ "date": null, "time": null, "datetime": datetime("-0290-03-22T17:59:48.999Z"), "duration": duration("-P27Y148D"), "interval": interval-date("-2012-03-17, 2013-04-01") }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/interval_functions/interval_functions.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/interval_functions/interval_functions.1.adm
new file mode 100644
index 0000000..9f9c9d3
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/interval_functions/interval_functions.1.adm
@@ -0,0 +1 @@
+{ "before1": true, "before2": false, "after1": true, "after2": false, "meet1": true, "meet2": false, "metby1": true, "metby2": false, "overlaps1": true, "overlaps2": false, "overlapped1": true, "overlapped2": false, "overlap1": true, "overlap2": false, "starts1": true, "starts2": false, "startedby1": true, "startedby2": false, "covers1": true, "covers2": false, "coveredby1": true, "coveredby2": false, "ends1": true, "ends2": false, "endedby1": true, "endedby2": false }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temporal/time_functions/time_functions.1.adm b/asterix-app/src/test/resources/runtimets/results/temporal/time_functions/time_functions.1.adm
new file mode 100644
index 0000000..791d652
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/temporal/time_functions/time_functions.1.adm
@@ -0,0 +1 @@
+{ "time1": time("00:26:00.074Z"), "time2": time("23:35:49.938Z"), "time3": time("23:30:23.000Z"), "time4": time("18:26:00.074Z"), "time5": time("00:11:49.938Z"), "duration1": duration("-PT23H24M"), "duration2": duration("PT18H"), "c1": true, "c2": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_01/counthashed-gram-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_02.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_02.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-gram-tokens_02/counthashed-gram-tokens_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-word-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-word-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/counthashed-word-tokens_01/counthashed-word-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_01/gram-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_01/gram-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_02.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_02/gram-tokens_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_02.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/gram-tokens_02/gram-tokens_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_01/hashed-gram-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_02.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_02.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-gram-tokens_02/hashed-gram-tokens_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-word-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-word-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/hashed-word-tokens_01/hashed-word-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_01.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_01/word-tokens_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_01.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_01/word-tokens_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_02.adm b/asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_02/word-tokens_02.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_02.adm
rename to asterix-app/src/test/resources/runtimets/results/tokenizers/word-tokens_02/word-tokens_02.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/distinct_by.adm b/asterix-app/src/test/resources/runtimets/results/tpch/distinct_by/distinct_by.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/distinct_by.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/distinct_by/distinct_by.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/group_no_agg.adm b/asterix-app/src/test/resources/runtimets/results/tpch/group_no_agg/group_no_agg.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/group_no_agg.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/group_no_agg/group_no_agg.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item/q10_returned_ite.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item/q10_returned_ite.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item_int64/q10_returned_item_int64.1.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item_int64/q10_returned_item_int64.1.adm
new file mode 100644
index 0000000..422b480
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tpch/q10_returned_item_int64/q10_returned_item_int64.1.adm
@@ -0,0 +1,20 @@
+{ "c_custkey": 121i64, "c_name": "Customer#000000121", "revenue": 282635.1719d, "c_acctbal": 6428.32d, "n_name": "PERU", "c_address": "tv nCR2YKupGN73mQudO", "c_phone": "27-411-990-2959", "c_comment": "uriously stealthy ideas. carefully final courts use carefully" }
+{ "c_custkey": 124i64, "c_name": "Customer#000000124", "revenue": 222182.5188d, "c_acctbal": 1842.49d, "n_name": "CHINA", "c_address": "aTbyVAW5tCd,v09O", "c_phone": "28-183-750-7809", "c_comment": "le fluffily even dependencies. quietly s" }
+{ "c_custkey": 106i64, "c_name": "Customer#000000106", "revenue": 190241.3334d, "c_acctbal": 3288.42d, "n_name": "ARGENTINA", "c_address": "xGCOEAUjUNG", "c_phone": "11-751-989-4627", "c_comment": "lose slyly. ironic accounts along the evenly regular theodolites wake about the special, final gifts. " }
+{ "c_custkey": 16i64, "c_name": "Customer#000000016", "revenue": 161422.04609999998d, "c_acctbal": 4681.03d, "n_name": "IRAN", "c_address": "cYiaeMLZSMAOQ2 d0W,", "c_phone": "20-781-609-3107", "c_comment": "kly silent courts. thinly regular theodolites sleep fluffily after " }
+{ "c_custkey": 44i64, "c_name": "Customer#000000044", "revenue": 149364.5652d, "c_acctbal": 7315.94d, "n_name": "MOZAMBIQUE", "c_address": "Oi,dOSPwDu4jo4x,,P85E0dmhZGvNtBwi", "c_phone": "26-190-260-5375", "c_comment": "r requests around the unusual, bold a" }
+{ "c_custkey": 71i64, "c_name": "Customer#000000071", "revenue": 129481.02450000001d, "c_acctbal": -611.19d, "n_name": "GERMANY", "c_address": "TlGalgdXWBmMV,6agLyWYDyIz9MKzcY8gl,w6t1B", "c_phone": "17-710-812-5403", "c_comment": "g courts across the regular, final pinto beans are blithely pending ac" }
+{ "c_custkey": 89i64, "c_name": "Customer#000000089", "revenue": 121663.1243d, "c_acctbal": 1530.76d, "n_name": "KENYA", "c_address": "dtR, y9JQWUO6FoJExyp8whOU", "c_phone": "24-394-451-5404", "c_comment": "counts are slyly beyond the slyly final accounts. quickly final ideas wake. r" }
+{ "c_custkey": 112i64, "c_name": "Customer#000000112", "revenue": 111137.7141d, "c_acctbal": 2953.35d, "n_name": "ROMANIA", "c_address": "RcfgG3bO7QeCnfjqJT1", "c_phone": "29-233-262-8382", "c_comment": "rmanently unusual multipliers. blithely ruthless deposits are furiously along the" }
+{ "c_custkey": 62i64, "c_name": "Customer#000000062", "revenue": 106368.0153d, "c_acctbal": 595.61d, "n_name": "GERMANY", "c_address": "upJK2Dnw13,", "c_phone": "17-361-978-7059", "c_comment": "kly special dolphins. pinto beans are slyly. quickly regular accounts are furiously a" }
+{ "c_custkey": 146i64, "c_name": "Customer#000000146", "revenue": 103265.98879999999d, "c_acctbal": 3328.68d, "n_name": "CANADA", "c_address": "GdxkdXG9u7iyI1,,y5tq4ZyrcEy", "c_phone": "13-835-723-3223", "c_comment": "ffily regular dinos are slyly unusual requests. slyly specia" }
+{ "c_custkey": 19i64, "c_name": "Customer#000000019", "revenue": 99306.0127d, "c_acctbal": 8914.71d, "n_name": "CHINA", "c_address": "uc,3bHIx84H,wdrmLOjVsiqXCq2tr", "c_phone": "28-396-526-5053", "c_comment": " nag. furiously careful packages are slyly at the accounts. furiously regular in" }
+{ "c_custkey": 145i64, "c_name": "Customer#000000145", "revenue": 99256.9018d, "c_acctbal": 9748.93d, "n_name": "JORDAN", "c_address": "kQjHmt2kcec cy3hfMh969u", "c_phone": "23-562-444-8454", "c_comment": "ests? express, express instructions use. blithely fina" }
+{ "c_custkey": 103i64, "c_name": "Customer#000000103", "revenue": 97311.77240000002d, "c_acctbal": 2757.45d, "n_name": "INDONESIA", "c_address": "8KIsQX4LJ7QMsj6DrtFtXu0nUEdV,8a", "c_phone": "19-216-107-2107", "c_comment": "furiously pending notornis boost slyly around the blithely ironic ideas? final, even instructions cajole fl" }
+{ "c_custkey": 136i64, "c_name": "Customer#000000136", "revenue": 95855.39799999999d, "c_acctbal": -842.39d, "n_name": "GERMANY", "c_address": "QoLsJ0v5C1IQbh,DS1", "c_phone": "17-501-210-4726", "c_comment": "ackages sleep ironic, final courts. even requests above the blithely bold requests g" }
+{ "c_custkey": 53i64, "c_name": "Customer#000000053", "revenue": 92568.9124d, "c_acctbal": 4113.64d, "n_name": "MOROCCO", "c_address": "HnaxHzTfFTZs8MuCpJyTbZ47Cm4wFOOgib", "c_phone": "25-168-852-5363", "c_comment": "ar accounts are. even foxes are blithely. fluffily pending deposits boost" }
+{ "c_custkey": 49i64, "c_name": "Customer#000000049", "revenue": 90965.7262d, "c_acctbal": 4573.94d, "n_name": "IRAN", "c_address": "cNgAeX7Fqrdf7HQN9EwjUa4nxT,68L FKAxzl", "c_phone": "20-908-631-4424", "c_comment": "nusual foxes! fluffily pending packages maintain to the regular " }
+{ "c_custkey": 37i64, "c_name": "Customer#000000037", "revenue": 88065.74579999999d, "c_acctbal": -917.75d, "n_name": "INDIA", "c_address": "7EV4Pwh,3SboctTWt", "c_phone": "18-385-235-7162", "c_comment": "ilent packages are carefully among the deposits. furiousl" }
+{ "c_custkey": 82i64, "c_name": "Customer#000000082", "revenue": 86998.9644d, "c_acctbal": 9468.34d, "n_name": "CHINA", "c_address": "zhG3EZbap4c992Gj3bK,3Ne,Xn", "c_phone": "28-159-442-5305", "c_comment": "s wake. bravely regular accounts are furiously. regula" }
+{ "c_custkey": 125i64, "c_name": "Customer#000000125", "revenue": 84808.068d, "c_acctbal": -234.12d, "n_name": "ROMANIA", "c_address": ",wSZXdVR xxIIfm9s8ITyLl3kgjT6UC07GY0Y", "c_phone": "29-261-996-3120", "c_comment": "x-ray finally after the packages? regular requests c" }
+{ "c_custkey": 59i64, "c_name": "Customer#000000059", "revenue": 84655.5711d, "c_acctbal": 3458.6d, "n_name": "ARGENTINA", "c_address": "zLOCP0wh92OtBihgspOGl4", "c_phone": "11-355-584-3112", "c_comment": "ously final packages haggle blithely after the express deposits. furiou" }
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q11_important_stock.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q11_important_stock/q11_important_stock.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q11_important_stock.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q11_important_stock/q11_important_stock.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q12_shipping.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q12_shipping/q12_shipping.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q12_shipping.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q12_shipping/q12_shipping.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q13_customer_distribution.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q13_customer_distribution/q13_customer_distribution.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q13_customer_distribution.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q13_customer_distribution/q13_customer_distribution.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q14_promotion_effect.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q14_promotion_effect/q14_promotion_effect.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q14_promotion_effect.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q14_promotion_effect/q14_promotion_effect.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q15_top_supplier.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q15_top_supplier/q15_top_supplier.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q15_top_supplier.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q15_top_supplier/q15_top_supplier.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q16_parts_supplier_relationship.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q16_parts_supplier_relationship.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q16_parts_supplier_relationship/q16_parts_supplier_relationship.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q17_small_quantity_order_revenue.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q17_small_quantity_order_revenue.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q17_small_quantity_order_revenue/q17_small_quantity_order_revenue.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q18_large_volume_customer.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q18_large_volume_customer/q18_large_volume_customer.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q18_large_volume_customer.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q18_large_volume_customer/q18_large_volume_customer.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q19_discounted_revenue.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q19_discounted_revenue/q19_discounted_revenue.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q19_discounted_revenue.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q19_discounted_revenue/q19_discounted_revenue.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q1_pricing_summary_report_nt.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q1_pricing_summary_report_nt.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q1_pricing_summary_report_nt/q1_pricing_summary_report_nt.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q20_potential_part_promotion.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q20_potential_part_promotion/q20_potential_part_promotion.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q20_potential_part_promotion.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q20_potential_part_promotion/q20_potential_part_promotion.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q21_suppliers_who_kept_orders_waiting.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q21_suppliers_who_kept_orders_waiting.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q21_suppliers_who_kept_orders_waiting/q21_suppliers_who_kept_orders_waiting.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q22_global_sales_opportunity.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q22_global_sales_opportunity.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q22_global_sales_opportunity/q22_global_sales_opportunity.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q2_minimum_cost_supplier.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q2_minimum_cost_supplier.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q2_minimum_cost_supplier/q2_minimum_cost_supplier.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q3_shipping_priority_nt.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q3_shipping_priority_nt.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q3_shipping_priority_nt/q3_shipping_priority_nt.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q4_order_priority.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q4_order_priority/q4_order_priority.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q4_order_priority.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q4_order_priority/q4_order_priority.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q5_local_supplier_volume.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q5_local_supplier_volume/q5_local_supplier_volume.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q5_local_supplier_volume.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q5_local_supplier_volume/q5_local_supplier_volume.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q6_forecast_revenue_change.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q6_forecast_revenue_change.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q6_forecast_revenue_change/q6_forecast_revenue_change.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q7_volume_shipping.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q7_volume_shipping/q7_volume_shipping.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q7_volume_shipping.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q7_volume_shipping/q7_volume_shipping.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q8_national_market_share.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q8_national_market_share/q8_national_market_share.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q8_national_market_share.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q8_national_market_share/q8_national_market_share.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/tpch/q9_product_type_profit_nt.adm b/asterix-app/src/test/resources/runtimets/results/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/tpch/q9_product_type_profit_nt.adm
rename to asterix-app/src/test/resources/runtimets/results/tpch/q9_product_type_profit_nt/q9_product_type_profit_nt.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue201/query-issue201.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue201/query-issue201.1.adm
new file mode 100644
index 0000000..190423f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue201/query-issue201.1.adm
@@ -0,0 +1,100 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47
+48
+49
+50
+51
+52
+53
+54
+55
+56
+57
+58
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69
+70
+71
+72
+73
+74
+75
+76
+77
+78
+79
+80
+81
+82
+83
+84
+85
+86
+87
+88
+89
+90
+91
+92
+93
+94
+95
+96
+97
+98
+99
+100
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf01/udf01.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf01/udf01.1.adm
new file mode 100644
index 0000000..f00c965
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf01/udf01.1.adm
@@ -0,0 +1,10 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf02/udf02.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf02/udf02.1.adm
new file mode 100644
index 0000000..2b2f2e1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf02/udf02.1.adm
@@ -0,0 +1,2 @@
+1
+3
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf03/udf03.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf03/udf03.1.adm
new file mode 100644
index 0000000..5885d0f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf03/udf03.1.adm
@@ -0,0 +1 @@
+1234.1d
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf04/udf04.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf04/udf04.1.adm
new file mode 100644
index 0000000..46c8aa5
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf04/udf04.1.adm
@@ -0,0 +1,3 @@
+{ "name": "John", "age": 45, "id": 123 }
+{ "name": "Jim", "age": 55, "id": 103 }
+{ "name": "Bill", "age": 35, "id": 125 }
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf05/udf05.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf05/udf05.1.adm
new file mode 100644
index 0000000..81c545e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf05/udf05.1.adm
@@ -0,0 +1 @@
+1234
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf06/udf06.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf06/udf06.1.adm
new file mode 100644
index 0000000..5885d0f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf06/udf06.1.adm
@@ -0,0 +1 @@
+1234.1d
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf07/udf07.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf07/udf07.1.adm
new file mode 100644
index 0000000..74dde56
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf07/udf07.1.adm
@@ -0,0 +1 @@
+1234.1f
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf08/udf08.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf08/udf08.1.adm
new file mode 100644
index 0000000..c3ce7a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf08/udf08.1.adm
@@ -0,0 +1 @@
+"This is a test string"
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf09/udf09.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf09/udf09.1.adm
new file mode 100644
index 0000000..410a64a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf09/udf09.1.adm
@@ -0,0 +1 @@
+[ { "id": 241 }, { "id": 245 }, { "id": 315 }, { "id": 345 }, { "id": 349 }, { "id": 385 }, { "id": 745 }, { "id": 845 } ]
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf10/udf10.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf10/udf10.1.adm
new file mode 100644
index 0000000..b07e4f4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf10/udf10.1.adm
@@ -0,0 +1 @@
+{{ "this is optional data", "this is extra data", "open types are good" }}
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf11/udf11.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf11/udf11.1.adm
new file mode 100644
index 0000000..f00c965
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf11/udf11.1.adm
@@ -0,0 +1,10 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf12/udf12.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf12/udf12.1.adm
new file mode 100644
index 0000000..697cb3a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf12/udf12.1.adm
@@ -0,0 +1 @@
+300
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf13/udf13.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf13/udf13.1.adm
new file mode 100644
index 0000000..08839f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf13/udf13.1.adm
@@ -0,0 +1 @@
+200
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf14/udf14.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf14/udf14.1.adm
new file mode 100644
index 0000000..146cf04
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf14/udf14.1.adm
@@ -0,0 +1 @@
+80000
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf16/udf16.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf16/udf16.1.adm
new file mode 100644
index 0000000..e85087a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf16/udf16.1.adm
@@ -0,0 +1 @@
+31
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf17/udf17.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf17/udf17.1.adm
new file mode 100644
index 0000000..13481ba
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf17/udf17.1.adm
@@ -0,0 +1 @@
+"This data is from the child function"
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf18/udf18.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf18/udf18.1.adm
new file mode 100644
index 0000000..27ba77d
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf18/udf18.1.adm
@@ -0,0 +1 @@
+true
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf19/udf19.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf19/udf19.1.adm
new file mode 100644
index 0000000..948a660
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf19/udf19.1.adm
@@ -0,0 +1,4 @@
+113.03999999999999d
+200.96d
+314.0d
+452.15999999999997d
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf20/udf20.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf20/udf20.1.adm
new file mode 100644
index 0000000..0d27e01
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf20/udf20.1.adm
@@ -0,0 +1,4 @@
+{ "radius": 6, "area": 113.03999999999999d }
+{ "radius": 8, "area": 200.96d }
+{ "radius": 10, "area": 314.0d }
+{ "radius": 12, "area": 452.15999999999997d }
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf21/udf21.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf21/udf21.1.adm
new file mode 100644
index 0000000..426c833
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf21/udf21.1.adm
@@ -0,0 +1,12 @@
+3
+5
+7
+9
+1
+13
+17
+19
+25
+45
+65
+75
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf22/udf22.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf22/udf22.1.adm
new file mode 100644
index 0000000..8be5ca6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf22/udf22.1.adm
@@ -0,0 +1 @@
+"BobHarbus"
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf23/udf23.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf23/udf23.1.adm
new file mode 100644
index 0000000..8bd28d4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf23/udf23.1.adm
@@ -0,0 +1,6 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "DatasourceAdapter", "DataTypeName": "DatasourceAdapterRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name", "Arity" ], "PrimaryKey": [ "DataverseName", "Name", "Arity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Tue Jan 29 18:54:03 PST 2013" }
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf27/udf27.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf27/udf27.1.adm
new file mode 100644
index 0000000..c508d53
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/udf27/udf27.1.adm
@@ -0,0 +1 @@
+false
diff --git a/asterix-app/src/test/resources/runtimets/results/writers/print_01.adm b/asterix-app/src/test/resources/runtimets/results/writers/print_01/print_01.1.adm
similarity index 100%
rename from asterix-app/src/test/resources/runtimets/results/writers/print_01.adm
rename to asterix-app/src/test/resources/runtimets/results/writers/print_01/print_01.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/writers/serialized_01.adm b/asterix-app/src/test/resources/runtimets/results/writers/serialized_01.adm
deleted file mode 100644
index 7862e5c..0000000
--- a/asterix-app/src/test/resources/runtimets/results/writers/serialized_01.adm
+++ /dev/null
Binary files differ
diff --git a/asterix-app/src/test/resources/runtimets/results/writers/serialized_01/serialized_01.1.adm b/asterix-app/src/test/resources/runtimets/results/writers/serialized_01/serialized_01.1.adm
new file mode 100644
index 0000000..c503a33
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/writers/serialized_01/serialized_01.1.adm
Binary files differ
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
new file mode 100644
index 0000000..b730b41
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/testsuite.xml
@@ -0,0 +1,4192 @@
+<test-suite xmlns="urn:xml.testframework.asterix.ics.uci.edu" ResultOffsetPath="results" QueryOffsetPath="queries" QueryFileExtension=".aql">
+  <test-group name="aggregate">
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_double">
+        <output-dir compare="Text">avg_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_double_null">
+        <output-dir compare="Text">avg_double_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_empty_01">
+        <output-dir compare="Text">avg_empty_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_empty_02">
+        <output-dir compare="Text">avg_empty_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_float">
+        <output-dir compare="Text">avg_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_float_null">
+        <output-dir compare="Text">avg_float_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int16">
+        <output-dir compare="Text">avg_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int16_null">
+        <output-dir compare="Text">avg_int16_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int32">
+        <output-dir compare="Text">avg_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int32_null">
+        <output-dir compare="Text">avg_int32_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int64">
+        <output-dir compare="Text">avg_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int64_null">
+        <output-dir compare="Text">avg_int64_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int8">
+        <output-dir compare="Text">avg_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="avg_int8_null">
+        <output-dir compare="Text">avg_int8_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="count_01">
+        <output-dir compare="Text">count_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="count_empty_01">
+        <output-dir compare="Text">count_empty_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="count_empty_02">
+        <output-dir compare="Text">count_empty_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="count_null">
+        <output-dir compare="Text">count_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="aggregate">
+      <compilation-unit name="droptype">
+        <output-dir compare="Text">droptype</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="aggregate">
+      <compilation-unit name="global-avg_01">
+        <output-dir compare="Text">global-avg_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="global-avg_null">
+        <output-dir compare="Text">global-avg_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_double">
+        <output-dir compare="Text">local-avg_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_double_null">
+        <output-dir compare="Text">local-avg_double_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_float">
+        <output-dir compare="Text">local-avg_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_float_null">
+        <output-dir compare="Text">local-avg_float_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int16">
+        <output-dir compare="Text">local-avg_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int16_null">
+        <output-dir compare="Text">local-avg_int16_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int32">
+        <output-dir compare="Text">local-avg_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int32_null">
+        <output-dir compare="Text">local-avg_int32_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int64">
+        <output-dir compare="Text">local-avg_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int64_null">
+        <output-dir compare="Text">local-avg_int64_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int8">
+        <output-dir compare="Text">local-avg_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="local-avg_int8_null">
+        <output-dir compare="Text">local-avg_int8_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="max_empty_01">
+        <output-dir compare="Text">max_empty_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="max_empty_02">
+        <output-dir compare="Text">max_empty_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="min_empty_01">
+        <output-dir compare="Text">min_empty_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="min_empty_02">
+        <output-dir compare="Text">min_empty_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_avg">
+        <output-dir compare="Text">scalar_avg</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_avg_empty">
+        <output-dir compare="Text">scalar_avg_empty</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_avg_null">
+        <output-dir compare="Text">scalar_avg_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_count">
+        <output-dir compare="Text">scalar_count</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_count_empty">
+        <output-dir compare="Text">scalar_count_empty</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_count_null">
+        <output-dir compare="Text">scalar_count_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_max">
+        <output-dir compare="Text">scalar_max</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_max_empty">
+        <output-dir compare="Text">scalar_max_empty</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_max_null">
+        <output-dir compare="Text">scalar_max_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_min">
+        <output-dir compare="Text">scalar_min</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_min_empty">
+        <output-dir compare="Text">scalar_min_empty</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_min_null">
+        <output-dir compare="Text">scalar_min_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_sum">
+        <output-dir compare="Text">scalar_sum</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_sum_empty">
+        <output-dir compare="Text">scalar_sum_empty</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="scalar_sum_null">
+        <output-dir compare="Text">scalar_sum_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_double">
+        <output-dir compare="Text">sum_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_double_null">
+        <output-dir compare="Text">sum_double_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_empty_01">
+        <output-dir compare="Text">sum_empty_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_empty_02">
+        <output-dir compare="Text">sum_empty_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_float">
+        <output-dir compare="Text">sum_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_float_null">
+        <output-dir compare="Text">sum_float_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int16">
+        <output-dir compare="Text">sum_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int16_null">
+        <output-dir compare="Text">sum_int16_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int32">
+        <output-dir compare="Text">sum_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int32_null">
+        <output-dir compare="Text">sum_int32_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int64">
+        <output-dir compare="Text">sum_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int64_null">
+        <output-dir compare="Text">sum_int64_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int8">
+        <output-dir compare="Text">sum_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_int8_null">
+        <output-dir compare="Text">sum_int8_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_null-with-pred">
+        <output-dir compare="Text">sum_null-with-pred</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
+      <compilation-unit name="sum_numeric_null">
+        <output-dir compare="Text">sum_numeric_null</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="boolean">
+    <test-case FilePath="boolean">
+      <compilation-unit name="and_01">
+        <output-dir compare="Text">and_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="boolean">
+      <compilation-unit name="and_null">
+        <output-dir compare="Text">and_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="boolean">
+      <compilation-unit name="and_null_false">
+        <output-dir compare="Text">and_null_false</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="boolean">
+      <compilation-unit name="not_01">
+        <output-dir compare="Text">not_01</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="comparison">
+    <test-case FilePath="comparison">
+      <compilation-unit name="datetime_order">
+        <output-dir compare="Text">datetime_order</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="datetime_range">
+        <output-dir compare="Text">datetime_range</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="datetime_tzeq">
+        <output-dir compare="Text">datetime_tzeq</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="double">
+        <output-dir compare="Text">double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="double_gte_01">
+        <output-dir compare="Text">double_gte_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="double_null">
+        <output-dir compare="Text">double_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="eq_01">
+        <output-dir compare="Text">eq_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="float">
+        <output-dir compare="Text">float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="float_null">
+        <output-dir compare="Text">float_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="gt_01">
+        <output-dir compare="Text">gt_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="gte_01">
+        <output-dir compare="Text">gte_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int16">
+        <output-dir compare="Text">int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int16_null">
+        <output-dir compare="Text">int16_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int32">
+        <output-dir compare="Text">int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int32_null">
+        <output-dir compare="Text">int32_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int64">
+        <output-dir compare="Text">int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int64_null">
+        <output-dir compare="Text">int64_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int8">
+        <output-dir compare="Text">int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="int8_null">
+        <output-dir compare="Text">int8_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="lt_01">
+        <output-dir compare="Text">lt_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="lte_01">
+        <output-dir compare="Text">lte_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="neq_01">
+        <output-dir compare="Text">neq_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="comparison">
+      <compilation-unit name="numeric-comparison_01">
+        <output-dir compare="Text">numeric-comparison_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="comparison">
+      <compilation-unit name="string">
+        <output-dir compare="Text">string</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="comparison">
+      <compilation-unit name="string_null">
+        <output-dir compare="Text">string_null</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="constructor">
+    <test-case FilePath="constructor">
+      <compilation-unit name="add-null">
+        <output-dir compare="Text">add-null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="boolean_01">
+        <output-dir compare="Text">boolean_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="circle_01">
+        <output-dir compare="Text">circle_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="date_01">
+        <output-dir compare="Text">date_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="datetime_01">
+        <output-dir compare="Text">datetime_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="double_01">
+        <output-dir compare="Text">double_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="duration_01">
+        <output-dir compare="Text">duration_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="float_01">
+        <output-dir compare="Text">float_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="int_01">
+        <output-dir compare="Text">int_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="interval">
+        <output-dir compare="Text">interval</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="line_01">
+        <output-dir compare="Text">line_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="point_01">
+        <output-dir compare="Text">point_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="polygon_01">
+        <output-dir compare="Text">polygon_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="primitive-01">
+        <output-dir compare="Text">primitive-01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="primitive-02">
+        <output-dir compare="Text">primitive-02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="primitive-03">
+        <output-dir compare="Text">primitive-03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="primitive-04">
+        <output-dir compare="Text">primitive-04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="string_01">
+        <output-dir compare="Text">string_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="constructor">
+      <compilation-unit name="time_01">
+        <output-dir compare="Text">time_01</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="custord">
+    <!--
+    <test-case FilePath="custord">
+      <compilation-unit name="co">
+        <output-dir compare="Text">co</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_01">
+        <output-dir compare="Text">customer_q_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_02">
+        <output-dir compare="Text">customer_q_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_03">
+        <output-dir compare="Text">customer_q_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_04">
+        <output-dir compare="Text">customer_q_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_05">
+        <output-dir compare="Text">customer_q_05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_06">
+        <output-dir compare="Text">customer_q_06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_07">
+        <output-dir compare="Text">customer_q_07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="customer_q_08">
+        <output-dir compare="Text">customer_q_08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="custord">
+      <compilation-unit name="denorm-cust-order_01">
+        <output-dir compare="Text">denorm-cust-order_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="custord">
+      <compilation-unit name="denorm-cust-order_02">
+        <output-dir compare="Text">denorm-cust-order_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="custord">
+      <compilation-unit name="denorm-cust-order_03">
+        <output-dir compare="Text">denorm-cust-order_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="custord">
+      <compilation-unit name="freq-clerk">
+        <output-dir compare="Text">freq-clerk</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="custord">
+      <compilation-unit name="join_q_01">
+        <output-dir compare="Text">join_q_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="join_q_02">
+        <output-dir compare="Text">join_q_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="join_q_03">
+        <output-dir compare="Text">join_q_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="custord">
+      <compilation-unit name="join_q_04">
+        <output-dir compare="Text">join_q_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="custord">
+      <compilation-unit name="load-test">
+        <output-dir compare="Text">load-test</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_01">
+        <output-dir compare="Text">order_q_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_02">
+        <output-dir compare="Text">order_q_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_03">
+        <output-dir compare="Text">order_q_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_04">
+        <output-dir compare="Text">order_q_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_05">
+        <output-dir compare="Text">order_q_05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="custord">
+      <compilation-unit name="order_q_06">
+        <output-dir compare="Text">order_q_06</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="dapd">
+    <test-case FilePath="dapd">
+      <compilation-unit name="q1">
+        <output-dir compare="Text">q1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dapd">
+      <compilation-unit name="q2">
+        <output-dir compare="Text">q2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="dapd">
+      <compilation-unit name="q3">
+        <output-dir compare="Text">q3</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+  </test-group>
+  <test-group name="dml">
+     <test-case FilePath="dml">
+      <compilation-unit name="query-issue288">
+        <output-dir compare="Text">query-issue288</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="query-issue205">
+        <output-dir compare="Text">query-issue205</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="delete-from-loaded-dataset-with-index">
+        <output-dir compare="Text">delete-from-loaded-dataset-with-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="delete-from-loaded-dataset">
+        <output-dir compare="Text">delete-from-loaded-dataset</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="delete-syntax-change">
+        <output-dir compare="Text">delete-syntax-change</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="drop-empty-secondary-indexes">
+        <output-dir compare="Text">drop-empty-secondary-indexes</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="create-drop-cltype">
+        <output-dir compare="Text">create-drop-cltype</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="create-drop-opntype">
+        <output-dir compare="Text">create-drop-opntype</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="empty-load-with-index">
+        <output-dir compare="Text">empty-load-with-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="empty-load">
+        <output-dir compare="Text">empty-load</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-empty-dataset-with-index">
+        <output-dir compare="Text">insert-into-empty-dataset-with-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-empty-dataset-with-index">
+        <output-dir compare="Text">insert-into-empty-dataset-with-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-syntax">
+        <output-dir compare="Text">insert-syntax</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-loaded-dataset-with-index_01">
+        <output-dir compare="Text">insert-into-loaded-dataset-with-index_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-loaded-dataset-with-index_02">
+        <output-dir compare="Text">insert-into-loaded-dataset-with-index_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-loaded-dataset_01">
+        <output-dir compare="Text">insert-into-loaded-dataset_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-into-loaded-dataset_02">
+        <output-dir compare="Text">insert-into-loaded-dataset_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert-src-dst-01">
+        <output-dir compare="Text">insert-src-dst-01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert">
+        <output-dir compare="Text">insert</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="insert_less_nc">
+        <output-dir compare="Text">insert_less_nc</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="dml">
+      <compilation-unit name="load-from-hdfs">
+        <output-dir compare="Text">load-from-hdfs</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="dml">
+      <compilation-unit name="load-with-index">
+        <output-dir compare="Text">load-with-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-c2o-recursive">
+        <output-dir compare="Text">opentype-c2o-recursive</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-c2o">
+        <output-dir compare="Text">opentype-c2o</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-closed-optional">
+        <output-dir compare="Text">opentype-closed-optional</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-insert">
+        <output-dir compare="Text">opentype-insert</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-insert2">
+        <output-dir compare="Text">opentype-insert2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-noexpand">
+        <output-dir compare="Text">opentype-noexpand</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-o2c-recursive">
+        <output-dir compare="Text">opentype-o2c-recursive</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-o2c">
+        <output-dir compare="Text">opentype-o2c</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="opentype-o2o">
+        <output-dir compare="Text">opentype-o2o</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-btree-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-btree-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-rtree-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-rtree-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-rtree-secondary-index">
+        <output-dir compare="Text">scan-delete-rtree-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-btree-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-btree-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-rtree-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-rtree-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-rtree-secondary-index">
+        <output-dir compare="Text">scan-insert-rtree-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-ngram-secondary-index">
+        <output-dir compare="Text">scan-insert-inverted-index-ngram-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-word-secondary-index">
+        <output-dir compare="Text">scan-insert-inverted-index-word-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-fuzzy-ngram-secondary-index">
+        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-ngram-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-fuzzy-word-secondary-index">
+        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-word-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-ngram-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-inverted-index-ngram-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-word-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-inverted-index-word-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-insert-inverted-index-fuzzy-word-secondary-index-nullable">
+        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-word-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-ngram-secondary-index">
+        <output-dir compare="Text">scan-delete-inverted-index-ngram-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-word-secondary-index">
+        <output-dir compare="Text">scan-delete-inverted-index-word-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-fuzzy-ngram-secondary-index">
+        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-ngram-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-fuzzy-word-secondary-index">
+        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-word-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-ngram-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-inverted-index-ngram-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-word-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-inverted-index-word-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="dml">
+      <compilation-unit name="scan-delete-inverted-index-fuzzy-word-secondary-index-nullable">
+        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-word-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="employee">
+    <test-case FilePath="employee">
+      <compilation-unit name="q_01">
+        <output-dir compare="Text">q_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="employee">
+      <compilation-unit name="q_02">
+        <output-dir compare="Text">q_02</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="failure">
+    <test-case FilePath="failure">
+      <compilation-unit name="delete-rtree">
+        <output-dir compare="Text">delete-rtree</output-dir>
+        <expected-error>edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_delete-rtree">
+        <output-dir compare="Text">delete-rtree</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="failure">
+      <compilation-unit name="delete">
+        <output-dir compare="Text">delete</output-dir>
+        <expected-error>edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_delete">
+        <output-dir compare="Text">delete</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="failure">
+      <compilation-unit name="insert-rtree">
+        <output-dir compare="Text">insert-rtree</output-dir>
+        <expected-error>edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_insert-rtree">
+        <output-dir compare="Text">insert-rtree</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="failure">
+      <compilation-unit name="insert">
+        <output-dir compare="Text">insert</output-dir>
+        <expected-error>edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException</expected-error>
+      </compilation-unit>
+      <compilation-unit name="verify_insert">
+        <output-dir compare="Text">insert</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="failure">
+      <compilation-unit name="q1_pricing_summary_report_failure">
+        <output-dir compare="Text">q1_pricing_summary_report_failure</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+  </test-group>
+  <!--
+  <test-group name="flwor">
+    <test-case FilePath="flwor">
+      <compilation-unit name="for01">
+        <output-dir compare="Text">for01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for02">
+        <output-dir compare="Text">for02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for03">
+        <output-dir compare="Text">for03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for04">
+        <output-dir compare="Text">for04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for05">
+        <output-dir compare="Text">for05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for06">
+        <output-dir compare="Text">for06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for07">
+        <output-dir compare="Text">for07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for08">
+        <output-dir compare="Text">for08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for09">
+        <output-dir compare="Text">for09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for10">
+        <output-dir compare="Text">for10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for11">
+        <output-dir compare="Text">for11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for12">
+        <output-dir compare="Text">for12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for13">
+        <output-dir compare="Text">for13</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for14">
+        <output-dir compare="Text">for14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for15">
+        <output-dir compare="Text">for15</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for16">
+        <output-dir compare="Text">for16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for17">
+        <output-dir compare="Text">for17</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for18">
+        <output-dir compare="Text">for18</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="for19">
+        <output-dir compare="Text">for19</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="grpby01">
+        <output-dir compare="Text">grpby01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="grpby02">
+        <output-dir compare="Text">grpby02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let01">
+        <output-dir compare="Text">let01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let02">
+        <output-dir compare="Text">let02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let03">
+        <output-dir compare="Text">let03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let04">
+        <output-dir compare="Text">let04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let05">
+        <output-dir compare="Text">let05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let06">
+        <output-dir compare="Text">let06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let07">
+        <output-dir compare="Text">let07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let08">
+        <output-dir compare="Text">let08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let09">
+        <output-dir compare="Text">let09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let10">
+        <output-dir compare="Text">let10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let11">
+        <output-dir compare="Text">let11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let12">
+        <output-dir compare="Text">let12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let13">
+        <output-dir compare="Text">let13</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let14">
+        <output-dir compare="Text">let14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let15">
+        <output-dir compare="Text">let15</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let16">
+        <output-dir compare="Text">let16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let17">
+        <output-dir compare="Text">let17</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let18">
+        <output-dir compare="Text">let18</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let19">
+        <output-dir compare="Text">let19</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let20">
+        <output-dir compare="Text">let20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let21">
+        <output-dir compare="Text">let21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let22">
+        <output-dir compare="Text">let22</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let23">
+        <output-dir compare="Text">let23</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let24">
+        <output-dir compare="Text">let24</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let25">
+        <output-dir compare="Text">let25</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let26">
+        <output-dir compare="Text">let26</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let27">
+        <output-dir compare="Text">let27</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let28">
+        <output-dir compare="Text">let28</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let29">
+        <output-dir compare="Text">let29</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let30">
+        <output-dir compare="Text">let30</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let31">
+        <output-dir compare="Text">let31</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="let32">
+        <output-dir compare="Text">let32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-01">
+        <output-dir compare="Text">order-by-01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-02">
+        <output-dir compare="Text">order-by-02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-03">
+        <output-dir compare="Text">order-by-03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-04">
+        <output-dir compare="Text">order-by-04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-05">
+        <output-dir compare="Text">order-by-05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-06">
+        <output-dir compare="Text">order-by-06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-07">
+        <output-dir compare="Text">order-by-07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-08">
+        <output-dir compare="Text">order-by-08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-09">
+        <output-dir compare="Text">order-by-09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-10">
+        <output-dir compare="Text">order-by-10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-11">
+        <output-dir compare="Text">order-by-11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="order-by-12">
+        <output-dir compare="Text">order-by-12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-01">
+        <output-dir compare="Text">ret-01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-02">
+        <output-dir compare="Text">ret-02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-03">
+        <output-dir compare="Text">ret-03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-04">
+        <output-dir compare="Text">ret-04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-05">
+        <output-dir compare="Text">ret-05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-06">
+        <output-dir compare="Text">ret-06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-07">
+        <output-dir compare="Text">ret-07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-08">
+        <output-dir compare="Text">ret-08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-09">
+        <output-dir compare="Text">ret-09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-10">
+        <output-dir compare="Text">ret-10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-11">
+        <output-dir compare="Text">ret-11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-12">
+        <output-dir compare="Text">ret-12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-13">
+        <output-dir compare="Text">ret-13</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-14">
+        <output-dir compare="Text">ret-14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-15">
+        <output-dir compare="Text">ret-15</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-16">
+        <output-dir compare="Text">ret-16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-17">
+        <output-dir compare="Text">ret-17</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-18">
+        <output-dir compare="Text">ret-18</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="flwor">
+      <compilation-unit name="ret-19">
+        <output-dir compare="Text">ret-19</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  -->
+  <test-group name="fuzzyjoin">
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-1_1">
+        <output-dir compare="Text">dblp-1_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-1_2.1.1">
+        <output-dir compare="Text">dblp-1_2.1.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-1_2.1">
+        <output-dir compare="Text">dblp-1_2.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-1_2">
+        <output-dir compare="Text">dblp-1_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2.1_5.3.1">
+        <output-dir compare="Text">dblp-2.1_5.3.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_1">
+        <output-dir compare="Text">dblp-2_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_2">
+        <output-dir compare="Text">dblp-2_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2.2">
+        <output-dir compare="Text">dblp-2.2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_3">
+        <output-dir compare="Text">dblp-2_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_4">
+        <output-dir compare="Text">dblp-2_4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_5.1">
+        <output-dir compare="Text">dblp-2_5.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_5.2">
+        <output-dir compare="Text">dblp-2_5.2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_5.3.1">
+        <output-dir compare="Text">dblp-2_5.3.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_5.3">
+        <output-dir compare="Text">dblp-2_5.3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-2_5">
+        <output-dir compare="Text">dblp-2_5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-3_1.1">
+        <output-dir compare="Text">dblp-3_1.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-3_1.2">
+        <output-dir compare="Text">dblp-3_1.2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-3_1">
+        <output-dir compare="Text">dblp-3_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-aqlplus_1">
+        <output-dir compare="Text">dblp-aqlplus_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-aqlplus_2">
+        <output-dir compare="Text">dblp-aqlplus_2</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_1">
+        <output-dir compare="Text">dblp-csx-2_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_2">
+        <output-dir compare="Text">dblp-csx-2_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_3">
+        <output-dir compare="Text">dblp-csx-2_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_4">
+        <output-dir compare="Text">dblp-csx-2_4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_5.1">
+        <output-dir compare="Text">dblp-csx-2_5.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_5.2">
+        <output-dir compare="Text">dblp-csx-2_5.2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_5.3.1">
+        <output-dir compare="Text">dblp-csx-2_5.3.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_5.3">
+        <output-dir compare="Text">dblp-csx-2_5.3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-2_5">
+        <output-dir compare="Text">dblp-csx-2_5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_1">
+        <output-dir compare="Text">dblp-csx-3_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_2">
+        <output-dir compare="Text">dblp-csx-3_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_3">
+        <output-dir compare="Text">dblp-csx-3_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_4">
+        <output-dir compare="Text">dblp-csx-3_4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.1">
+        <output-dir compare="Text">dblp-csx-3_5.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.2">
+        <output-dir compare="Text">dblp-csx-3_5.2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.3.1">
+        <output-dir compare="Text">dblp-csx-3_5.3.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.3">
+        <output-dir compare="Text">dblp-csx-3_5.3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.4.1">
+        <output-dir compare="Text">dblp-csx-3_5.4.1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5.4">
+        <output-dir compare="Text">dblp-csx-3_5.4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-3_5">
+        <output-dir compare="Text">dblp-csx-3_5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-aqlplus_1">
+        <output-dir compare="Text">dblp-csx-aqlplus_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-aqlplus_2">
+        <output-dir compare="Text">dblp-csx-aqlplus_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-aqlplus_3">
+        <output-dir compare="Text">dblp-csx-aqlplus_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-csx-dblp-aqlplus_1">
+        <output-dir compare="Text">dblp-csx-dblp-aqlplus_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-lookup_1">
+        <output-dir compare="Text">dblp-lookup_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="dblp-splits-3_1">
+        <output-dir compare="Text">dblp-splits-3_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+  </test-group>
+  <test-group name="index-join">
+    <test-case FilePath="index-join">
+      <compilation-unit name="btree-primary-equi-join">
+        <output-dir compare="Text">btree-primary-equi-join</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-join">
+      <compilation-unit name="btree-secondary-equi-join">
+        <output-dir compare="Text">btree-secondary-equi-join</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-join">
+      <compilation-unit name="rtree-spatial-intersect-point">
+        <output-dir compare="Text">rtree-spatial-intersect-point</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="index-selection">
+    <test-case FilePath="index-selection">
+      <compilation-unit name="btree-index-composite-key">
+        <output-dir compare="Text">btree-index-composite-key</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="btree-index-composite-key-mixed-intervals">
+        <output-dir compare="Text">btree-index-composite-key-mixed-intervals</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="btree-index-rewrite-multiple">
+        <output-dir compare="Text">btree-index-rewrite-multiple</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="cust-index-age-nullable">
+        <output-dir compare="Text">cust-index-age-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-ngram-contains">
+        <output-dir compare="Text">fuzzy-inverted-index-ngram-contains</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-ngram-edit-distance-panic">
+        <output-dir compare="Text">fuzzy-inverted-index-ngram-edit-distance-panic</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-ngram-edit-distance">
+        <output-dir compare="Text">fuzzy-inverted-index-ngram-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-ngram-jaccard">
+        <output-dir compare="Text">fuzzy-inverted-index-ngram-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-olist-edit-distance-panic">
+        <output-dir compare="Text">fuzzy-inverted-index-olist-edit-distance-panic</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-olist-edit-distance">
+        <output-dir compare="Text">fuzzy-inverted-index-olist-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-olist-jaccard">
+        <output-dir compare="Text">fuzzy-inverted-index-olist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-ulist-jaccard">
+        <output-dir compare="Text">fuzzy-inverted-index-ulist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-word-contains">
+        <output-dir compare="Text">fuzzy-inverted-index-word-contains</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="fuzzy-inverted-index-word-jaccard">
+        <output-dir compare="Text">fuzzy-inverted-index-word-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-ngram-contains">
+        <output-dir compare="Text">inverted-index-ngram-contains</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-ngram-edit-distance-panic">
+        <output-dir compare="Text">inverted-index-ngram-edit-distance-panic</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-ngram-edit-distance">
+        <output-dir compare="Text">inverted-index-ngram-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-ngram-jaccard">
+        <output-dir compare="Text">inverted-index-ngram-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-olist-edit-distance-panic">
+        <output-dir compare="Text">inverted-index-olist-edit-distance-panic</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-olist-edit-distance">
+        <output-dir compare="Text">inverted-index-olist-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-olist-jaccard">
+        <output-dir compare="Text">inverted-index-olist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-ulist-jaccard">
+        <output-dir compare="Text">inverted-index-ulist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-word-contains">
+        <output-dir compare="Text">inverted-index-word-contains</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="inverted-index-word-jaccard">
+        <output-dir compare="Text">inverted-index-word-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="orders-index-custkey-conjunctive-open">
+        <output-dir compare="Text">orders-index-custkey-conjunctive-open</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="orders-index-custkey-conjunctive">
+        <output-dir compare="Text">orders-index-custkey-conjunctive</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="orders-index-custkey-open">
+        <output-dir compare="Text">orders-index-custkey-open</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="orders-index-custkey">
+        <output-dir compare="Text">orders-index-custkey</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="range-search-open">
+        <output-dir compare="Text">range-search-open</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="range-search">
+        <output-dir compare="Text">range-search</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="rtree-secondary-index-nullable">
+        <output-dir compare="Text">rtree-secondary-index-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="rtree-secondary-index-open">
+        <output-dir compare="Text">rtree-secondary-index-open</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="index-selection">
+      <compilation-unit name="rtree-secondary-index">
+        <output-dir compare="Text">rtree-secondary-index</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="inverted-index-join">
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ngram-edit-distance">
+        <output-dir compare="Text">ngram-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ngram-edit-distance-inline">
+        <output-dir compare="Text">ngram-edit-distance-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ngram-jaccard">
+        <output-dir compare="Text">ngram-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ngram-jaccard-inline">
+        <output-dir compare="Text">ngram-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="olist-edit-distance">
+        <output-dir compare="Text">olist-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="olist-edit-distance-inline">
+        <output-dir compare="Text">olist-edit-distance-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="olist-jaccard">
+        <output-dir compare="Text">olist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="olist-jaccard-inline">
+        <output-dir compare="Text">olist-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ulist-jaccard">
+        <output-dir compare="Text">ulist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="ulist-jaccard-inline">
+        <output-dir compare="Text">ulist-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="word-jaccard">
+        <output-dir compare="Text">word-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join">
+      <compilation-unit name="word-jaccard-inline">
+        <output-dir compare="Text">word-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="inverted-index-join-noeqjoin">
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ngram-edit-distance">
+        <output-dir compare="Text">ngram-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ngram-edit-distance-inline">
+        <output-dir compare="Text">ngram-edit-distance-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ngram-jaccard">
+        <output-dir compare="Text">ngram-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ngram-jaccard-inline">
+        <output-dir compare="Text">ngram-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="olist-edit-distance">
+        <output-dir compare="Text">olist-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="olist-edit-distance-inline">
+        <output-dir compare="Text">olist-edit-distance-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="olist-jaccard">
+        <output-dir compare="Text">olist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="olist-jaccard-inline">
+        <output-dir compare="Text">olist-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ulist-jaccard">
+        <output-dir compare="Text">ulist-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="ulist-jaccard-inline">
+        <output-dir compare="Text">ulist-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="word-jaccard">
+        <output-dir compare="Text">word-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="inverted-index-join-noeqjoin">
+      <compilation-unit name="word-jaccard-inline">
+        <output-dir compare="Text">word-jaccard-inline</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="list">
+    <test-case FilePath="list">
+      <compilation-unit name="any-collection-member_01">
+        <output-dir compare="Text">any-collection-member_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="get-item_01">
+        <output-dir compare="Text">get-item_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="len_01">
+        <output-dir compare="Text">len_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="len_null_01">
+        <output-dir compare="Text">len_null_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="listify_01">
+        <output-dir compare="Text">listify_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="listify_02">
+        <output-dir compare="Text">listify_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="listify_03">
+        <output-dir compare="Text">listify_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="ordered-list-constructor_01">
+        <output-dir compare="Text">ordered-list-constructor_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="ordered-list-constructor_02">
+        <output-dir compare="Text">ordered-list-constructor_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="ordered-list-constructor_03">
+        <output-dir compare="Text">ordered-list-constructor_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="scan-collection_01">
+        <output-dir compare="Text">scan-collection_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="union_01">
+        <output-dir compare="Text">union_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="union_02">
+        <output-dir compare="Text">union_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="unordered-list-constructor_01">
+        <output-dir compare="Text">unordered-list-constructor_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="unordered-list-constructor_02">
+        <output-dir compare="Text">unordered-list-constructor_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="list">
+      <compilation-unit name="unordered-list-constructor_03">
+        <output-dir compare="Text">unordered-list-constructor_03</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="misc">
+  <test-case FilePath="misc">
+      <compilation-unit name="partition-by-nonexistent-field">
+        <output-dir compare="Text">partition-by-nonexistent-field</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="float_01">
+        <output-dir compare="Text">float_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="groupby-orderby-count">
+        <output-dir compare="Text">groupby-orderby-count</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="ifthenelse_01">
+        <output-dir compare="Text">ifthenelse_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="is-null_01">
+        <output-dir compare="Text">is-null_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="nested-loop-join_01">
+        <output-dir compare="Text">nested-loop-join_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="range_01">
+        <output-dir compare="Text">range_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="tid_01">
+        <output-dir compare="Text">tid_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="misc">
+      <compilation-unit name="year_01">
+        <output-dir compare="Text">year_01</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="nestrecords">
+    <test-case FilePath="nestrecords">
+      <compilation-unit name="nestrecord">
+        <output-dir compare="Text">nestrecord</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="numeric">
+    <test-case FilePath="numeric">
+      <compilation-unit name="abs0">
+        <output-dir compare="Text">abs0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="abs1">
+        <output-dir compare="Text">abs1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="abs2">
+        <output-dir compare="Text">abs2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="abs3">
+        <output-dir compare="Text">abs3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="abs4">
+        <output-dir compare="Text">abs4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_double">
+        <output-dir compare="Text">add_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_float">
+        <output-dir compare="Text">add_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_int16">
+        <output-dir compare="Text">add_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_int32">
+        <output-dir compare="Text">add_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_int64">
+        <output-dir compare="Text">add_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="add_int8">
+        <output-dir compare="Text">add_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="ceiling0">
+        <output-dir compare="Text">ceiling0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="ceiling1">
+        <output-dir compare="Text">ceiling1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="ceiling2">
+        <output-dir compare="Text">ceiling2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="ceiling3">
+        <output-dir compare="Text">ceiling3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="ceiling4">
+        <output-dir compare="Text">ceiling4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_double">
+        <output-dir compare="Text">divide_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_float">
+        <output-dir compare="Text">divide_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_int16">
+        <output-dir compare="Text">divide_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_int32">
+        <output-dir compare="Text">divide_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_int64">
+        <output-dir compare="Text">divide_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="divide_int8">
+        <output-dir compare="Text">divide_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="floor0">
+        <output-dir compare="Text">floor0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="floor1">
+        <output-dir compare="Text">floor1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="floor2">
+        <output-dir compare="Text">floor2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="floor3">
+        <output-dir compare="Text">floor3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="floor4">
+        <output-dir compare="Text">floor4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_double">
+        <output-dir compare="Text">multiply_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_float">
+        <output-dir compare="Text">multiply_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_int16">
+        <output-dir compare="Text">multiply_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_int32">
+        <output-dir compare="Text">multiply_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_int64">
+        <output-dir compare="Text">multiply_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="multiply_int8">
+        <output-dir compare="Text">multiply_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even0">
+        <output-dir compare="Text">round-half-to-even0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even1">
+        <output-dir compare="Text">round-half-to-even1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even2">
+        <output-dir compare="Text">round-half-to-even2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even20">
+        <output-dir compare="Text">round-half-to-even20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even21">
+        <output-dir compare="Text">round-half-to-even21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even22">
+        <output-dir compare="Text">round-half-to-even22</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even23">
+        <output-dir compare="Text">round-half-to-even23</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even24">
+        <output-dir compare="Text">round-half-to-even24</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even3">
+        <output-dir compare="Text">round-half-to-even3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even4">
+        <output-dir compare="Text">round-half-to-even4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round-half-to-even5">
+        <output-dir compare="Text">round-half-to-even5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round0">
+        <output-dir compare="Text">round0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round1">
+        <output-dir compare="Text">round1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round2">
+        <output-dir compare="Text">round2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round3">
+        <output-dir compare="Text">round3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="round4">
+        <output-dir compare="Text">round4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_double">
+        <output-dir compare="Text">subtract_double</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_float">
+        <output-dir compare="Text">subtract_float</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_int16">
+        <output-dir compare="Text">subtract_int16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_int32">
+        <output-dir compare="Text">subtract_int32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_int64">
+        <output-dir compare="Text">subtract_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="subtract_int8">
+        <output-dir compare="Text">subtract_int8</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_double_01">
+        <output-dir compare="Text">unary-minus_double_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_double_02">
+        <output-dir compare="Text">unary-minus_double_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_float_01">
+        <output-dir compare="Text">unary-minus_float_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_float_02">
+        <output-dir compare="Text">unary-minus_float_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_int_01">
+        <output-dir compare="Text">unary-minus_int_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_int_02">
+        <output-dir compare="Text">unary-minus_int_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="unary-minus_null">
+        <output-dir compare="Text">unary-minus_null</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="open-closed">
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="c2c-w-optional">
+        <output-dir compare="Text">c2c-w-optional</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="c2c-wo-optional">
+        <output-dir compare="Text">c2c-wo-optional</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="c2c">
+        <output-dir compare="Text">c2c</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="open-closed">
+      <compilation-unit name="heterog-list-ordered01">
+        <output-dir compare="Text">heterog-list-ordered01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="heterog-list01">
+        <output-dir compare="Text">heterog-list01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="heterog-list02">
+        <output-dir compare="Text">heterog-list02</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="heterog-list03">
+        <output-dir compare="Text">heterog-list03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-01">
+        <output-dir compare="Text">open-closed-01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-12">
+        <output-dir compare="Text">open-closed-12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-14">
+        <output-dir compare="Text">open-closed-14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue134">
+        <output-dir compare="Text">query-issue134</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue55">
+        <output-dir compare="Text">query-issue55</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue55-1">
+        <output-dir compare="Text">query-issue55-1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue166">
+        <output-dir compare="Text">query-issue166</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue208">
+        <output-dir compare="Text">query-issue208</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue236">
+       <output-dir compare="Text">query-issue236</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-15">
+        <output-dir compare="Text">open-closed-15</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-16">
+        <output-dir compare="Text">open-closed-16</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-17">
+        <output-dir compare="Text">open-closed-17</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-19">
+        <output-dir compare="Text">open-closed-19</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-20">
+        <output-dir compare="Text">open-closed-20</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-21">
+        <output-dir compare="Text">open-closed-21</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-22">
+        <output-dir compare="Text">open-closed-22</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-24">
+        <output-dir compare="Text">open-closed-24</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-25">
+        <output-dir compare="Text">open-closed-25</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-26">
+        <output-dir compare="Text">open-closed-26</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-28">
+        <output-dir compare="Text">open-closed-28</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-29">
+        <output-dir compare="Text">open-closed-29</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-30">
+        <output-dir compare="Text">open-closed-30</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-31">
+        <output-dir compare="Text">open-closed-31</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-32">
+        <output-dir compare="Text">open-closed-32</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="open-closed-33">
+        <output-dir compare="Text">open-closed-33</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-proposal02">
+        <output-dir compare="Text">query-proposal02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-proposal">
+        <output-dir compare="Text">query-proposal</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="quantifiers">
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="everysat_01">
+        <output-dir compare="Text">everysat_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="everysat_02">
+        <output-dir compare="Text">everysat_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="everysat_03">
+        <output-dir compare="Text">everysat_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="everysat_04">
+        <output-dir compare="Text">everysat_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_01">
+        <output-dir compare="Text">somesat_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_02">
+        <output-dir compare="Text">somesat_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_03">
+        <output-dir compare="Text">somesat_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_04">
+        <output-dir compare="Text">somesat_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_05">
+        <output-dir compare="Text">somesat_05</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="quantifiers">
+      <compilation-unit name="somesat_06">
+        <output-dir compare="Text">somesat_06</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="records">
+    <test-case FilePath="records">
+      <compilation-unit name="closed-record-constructor_01">
+        <output-dir compare="Text">closed-record-constructor_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="closed-record-constructor_02">
+        <output-dir compare="Text">closed-record-constructor_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="closed-record-constructor_03">
+        <output-dir compare="Text">closed-record-constructor_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="expFieldName">
+        <output-dir compare="Text">expFieldName</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="field-access-by-index_01">
+        <output-dir compare="Text">field-access-by-index_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="field-access-on-open-field">
+        <output-dir compare="Text">field-access-on-open-field</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="open-record-constructor_01">
+        <output-dir compare="Text">open-record-constructor_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="open-record-constructor_02">
+        <output-dir compare="Text">open-record-constructor_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="closed-closed-fieldname-conflict_issue173">
+        <output-dir compare="Text">closed-closed-fieldname-conflict_issue173</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+  <test-case FilePath="records">
+      <compilation-unit name="open-closed-fieldname-conflict_issue173">
+        <output-dir compare="Text">open-closed-fieldname-conflict_issue173</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="records">
+      <compilation-unit name="open-open-fieldname-conflict_issue173">
+        <output-dir compare="Text">open-open-fieldname-conflict_issue173</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="scan">
+    <test-case FilePath="scan">
+      <compilation-unit name="10">
+        <output-dir compare="Text">10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="20">
+        <output-dir compare="Text">20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="issue238_query_1">
+        <output-dir compare="Text">issue238_query_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="issue238_query_2">
+        <output-dir compare="Text">issue238_query_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="invalid-scan-syntax">
+        <output-dir compare="Text">invalid-scan-syntax</output-dir>
+        <expected-error>SyntaxError</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="30">
+        <output-dir compare="Text">30</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="alltypes_01">
+        <output-dir compare="Text">alltypes_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="alltypes_02">
+        <output-dir compare="Text">alltypes_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="numeric_types_01">
+        <output-dir compare="Text">numeric_types_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="scan">
+      <compilation-unit name="spatial_types_01">
+        <output-dir compare="Text">spatial_types_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="scan">
+      <compilation-unit name="spatial_types_02">
+        <output-dir compare="Text">spatial_types_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="scan">
+      <compilation-unit name="temp_types_01">
+        <output-dir compare="Text">temp_types_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="scan">
+      <compilation-unit name="temp_types_02">
+        <output-dir compare="Text">temp_types_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+  </test-group>
+  <test-group name="semistructured">
+    <test-case FilePath="semistructured">
+      <compilation-unit name="count-nullable">
+        <output-dir compare="Text">count-nullable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="semistructured">
+      <compilation-unit name="cust-filter">
+        <output-dir compare="Text">cust-filter</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="semistructured">
+      <compilation-unit name="has-param1">
+        <output-dir compare="Text">has-param1</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="similarity">
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance-check_ints">
+        <output-dir compare="Text">edit-distance-check_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance-check_strings">
+        <output-dir compare="Text">edit-distance-check_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance-list-is-filterable">
+        <output-dir compare="Text">edit-distance-list-is-filterable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance-string-is-filterable">
+        <output-dir compare="Text">edit-distance-string-is-filterable</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance_ints">
+        <output-dir compare="Text">edit-distance_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="edit-distance_strings">
+        <output-dir compare="Text">edit-distance_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="fuzzyeq-edit-distance">
+        <output-dir compare="Text">fuzzyeq-edit-distance</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="fuzzyeq-similarity-jaccard">
+        <output-dir compare="Text">fuzzyeq-similarity-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="prefix-len-jaccard">
+        <output-dir compare="Text">prefix-len-jaccard</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-check_ints">
+        <output-dir compare="Text">similarity-jaccard-check_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-check_query">
+        <output-dir compare="Text">similarity-jaccard-check_query</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-check_strings">
+        <output-dir compare="Text">similarity-jaccard-check_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-prefix-check">
+        <output-dir compare="Text">similarity-jaccard-prefix-check</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-prefix">
+        <output-dir compare="Text">similarity-jaccard-prefix</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted-check_ints">
+        <output-dir compare="Text">similarity-jaccard-sorted-check_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted-check_query">
+        <output-dir compare="Text">similarity-jaccard-sorted-check_query</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted-check_strings">
+        <output-dir compare="Text">similarity-jaccard-sorted-check_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted_ints">
+        <output-dir compare="Text">similarity-jaccard-sorted_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted_query">
+        <output-dir compare="Text">similarity-jaccard-sorted_query</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard-sorted_strings">
+        <output-dir compare="Text">similarity-jaccard-sorted_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard_ints">
+        <output-dir compare="Text">similarity-jaccard_ints</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard_query">
+        <output-dir compare="Text">similarity-jaccard_query</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="similarity">
+      <compilation-unit name="similarity-jaccard_strings">
+        <output-dir compare="Text">similarity-jaccard_strings</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="spatial">
+    <test-case FilePath="spatial">
+      <compilation-unit name="cell-aggregation-with-filtering">
+        <output-dir compare="Text">cell-aggregation-with-filtering</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="cell-aggregation">
+        <output-dir compare="Text">cell-aggregation</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="circle_accessor">
+        <output-dir compare="Text">circle_accessor</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="circle-intersect-circle">
+        <output-dir compare="Text">circle-intersect-circle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="create-rtree-index">
+        <output-dir compare="Text">create-rtree-index</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="distance-between-points">
+        <output-dir compare="Text">distance-between-points</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="line_accessor">
+        <output-dir compare="Text">line_accessor</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="line-intersect-circle">
+        <output-dir compare="Text">line-intersect-circle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="line-intersect-line">
+        <output-dir compare="Text">line-intersect-line</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="line-intersect-polygon">
+        <output-dir compare="Text">line-intersect-polygon</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="line-intersect-rectangle">
+        <output-dir compare="Text">line-intersect-rectangle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point_accessor">
+        <output-dir compare="Text">point_accessor</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point-equals-point">
+        <output-dir compare="Text">point-equals-point</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point-in-circle">
+        <output-dir compare="Text">point-in-circle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point-in-polygon">
+        <output-dir compare="Text">point-in-polygon</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point-in-rectangle">
+        <output-dir compare="Text">point-in-rectangle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="point-on-line">
+        <output-dir compare="Text">point-on-line</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="polygon_accessor">
+        <output-dir compare="Text">polygon_accessor</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="polygon-intersect-circle">
+        <output-dir compare="Text">polygon-intersect-circle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="polygon-intersect-polygon">
+        <output-dir compare="Text">polygon-intersect-polygon</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="polygon-intersect-rectangle">
+        <output-dir compare="Text">polygon-intersect-rectangle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="rectangle_accessor">
+        <output-dir compare="Text">rectangle_accessor</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="rectangle-intersect-circle">
+        <output-dir compare="Text">rectangle-intersect-circle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="rectangle-intersect-rectangle">
+        <output-dir compare="Text">rectangle-intersect-rectangle</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="spatial">
+      <compilation-unit name="spatial-area">
+        <output-dir compare="Text">spatial-area</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="string">
+    <test-case FilePath="string">
+      <compilation-unit name="codepoint-to-string1">
+        <output-dir compare="Text">codepoint-to-string1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="codepoint-to-string2">
+        <output-dir compare="Text">codepoint-to-string2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="concat_01">
+        <output-dir compare="Text">concat_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="concat_02">
+        <output-dir compare="Text">concat_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="contains_01">
+        <output-dir compare="Text">contains_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="cpttostr01">
+        <output-dir compare="Text">cpttostr01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="cpttostr02">
+        <output-dir compare="Text">cpttostr02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="cpttostr04">
+        <output-dir compare="Text">cpttostr04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="end-with1">
+        <output-dir compare="Text">end-with1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="end-with2">
+        <output-dir compare="Text">end-with2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="end-with3">
+        <output-dir compare="Text">end-with3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="end-with4">
+        <output-dir compare="Text">end-with4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="end-with5">
+        <output-dir compare="Text">end-with5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="ends-with_01">
+        <output-dir compare="Text">ends-with_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="endwith02">
+        <output-dir compare="Text">endwith02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="endwith03">
+        <output-dir compare="Text">endwith03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="length_01">
+        <output-dir compare="Text">length_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="length_02">
+        <output-dir compare="Text">length_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="like_01">
+        <output-dir compare="Text">like_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="like_null">
+        <output-dir compare="Text">like_null</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="lowercase">
+        <output-dir compare="Text">lowercase</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches02">
+        <output-dir compare="Text">matches02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches03">
+        <output-dir compare="Text">matches03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches04">
+        <output-dir compare="Text">matches04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches05">
+        <output-dir compare="Text">matches05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches06">
+        <output-dir compare="Text">matches06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches1">
+        <output-dir compare="Text">matches1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches11">
+        <output-dir compare="Text">matches11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches2">
+        <output-dir compare="Text">matches2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches21">
+        <output-dir compare="Text">matches21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches22">
+        <output-dir compare="Text">matches22</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches23">
+        <output-dir compare="Text">matches23</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matches3">
+        <output-dir compare="Text">matches3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="matchesnull">
+        <output-dir compare="Text">matchesnull</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="replace1">
+        <output-dir compare="Text">replace1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="replace2">
+        <output-dir compare="Text">replace2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="replace21">
+        <output-dir compare="Text">replace21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="replace22">
+        <output-dir compare="Text">replace22</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="replace3">
+        <output-dir compare="Text">replace3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="start-with1">
+        <output-dir compare="Text">start-with1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="start-with2">
+        <output-dir compare="Text">start-with2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="start-with3">
+        <output-dir compare="Text">start-with3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="start-with4">
+        <output-dir compare="Text">start-with4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="start-with5">
+        <output-dir compare="Text">start-with5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="starts-with_01">
+        <output-dir compare="Text">starts-with_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="startwith02">
+        <output-dir compare="Text">startwith02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="string">
+      <compilation-unit name="startwith03">
+        <output-dir compare="Text">startwith03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="string">
+      <compilation-unit name="strconcat01">
+        <output-dir compare="Text">strconcat01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strconcat02">
+        <output-dir compare="Text">strconcat02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-concat1">
+        <output-dir compare="Text">string-concat1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-equal1">
+        <output-dir compare="Text">string-equal1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-equal2">
+        <output-dir compare="Text">string-equal2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-equal3">
+        <output-dir compare="Text">string-equal3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-equal4">
+        <output-dir compare="Text">string-equal4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-join1">
+        <output-dir compare="Text">string-join1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-to-codepoint">
+        <output-dir compare="Text">string-to-codepoint</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="string-to-codepoint1">
+        <output-dir compare="Text">string-to-codepoint1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strlen02">
+        <output-dir compare="Text">strlen02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strlen03">
+        <output-dir compare="Text">strlen03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strtocpt01">
+        <output-dir compare="Text">strtocpt01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strtocpt02">
+        <output-dir compare="Text">strtocpt02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="strtocpt03">
+        <output-dir compare="Text">strtocpt03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substr01">
+        <output-dir compare="Text">substr01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!-- Issue no 219
+    <test-case FilePath="string">
+      <compilation-unit name="substr04">
+        <output-dir compare="Text">substr04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substr05">
+        <output-dir compare="Text">substr05</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="string">
+      <compilation-unit name="substr06">
+        <output-dir compare="Text">substr06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-after-1">
+        <output-dir compare="Text">substring-after-1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-after-2">
+        <output-dir compare="Text">substring-after-2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-after-3">
+        <output-dir compare="Text">substring-after-3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-after-4">
+        <output-dir compare="Text">substring-after-4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-before-1">
+        <output-dir compare="Text">substring-before-1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-before-2">
+        <output-dir compare="Text">substring-before-2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring-before-3">
+        <output-dir compare="Text">substring-before-3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring2-1">
+        <output-dir compare="Text">substring2-1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring2-2">
+        <output-dir compare="Text">substring2-2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring2-3">
+        <output-dir compare="Text">substring2-3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring2-4">
+        <output-dir compare="Text">substring2-4</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="substring_01">
+        <output-dir compare="Text">substring_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="toLowerCase02">
+        <output-dir compare="Text">toLowerCase02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="toLowerCase03">
+        <output-dir compare="Text">toLowerCase03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
+      <compilation-unit name="toLowerCase04">
+        <output-dir compare="Text">toLowerCase04</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="subset-collection">
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="01">
+        <output-dir compare="Text">01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="02">
+        <output-dir compare="Text">02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="03">
+        <output-dir compare="Text">03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="04">
+        <output-dir compare="Text">04</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="05">
+        <output-dir compare="Text">05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="06">
+        <output-dir compare="Text">06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="subset-collection">
+      <compilation-unit name="07">
+        <output-dir compare="Text">07</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="tokenizers">
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="counthashed-gram-tokens_01">
+        <output-dir compare="Text">counthashed-gram-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="counthashed-gram-tokens_02">
+        <output-dir compare="Text">counthashed-gram-tokens_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="counthashed-word-tokens_01">
+        <output-dir compare="Text">counthashed-word-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="gram-tokens_01">
+        <output-dir compare="Text">gram-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="gram-tokens_02">
+        <output-dir compare="Text">gram-tokens_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="hashed-gram-tokens_01">
+        <output-dir compare="Text">hashed-gram-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="hashed-gram-tokens_02">
+        <output-dir compare="Text">hashed-gram-tokens_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="hashed-word-tokens_01">
+        <output-dir compare="Text">hashed-word-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="word-tokens_01">
+        <output-dir compare="Text">word-tokens_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tokenizers">
+      <compilation-unit name="word-tokens_02">
+        <output-dir compare="Text">word-tokens_02</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="tpch">
+    <test-case FilePath="tpch">
+      <compilation-unit name="distinct_by">
+        <output-dir compare="Text">distinct_by</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="group_no_agg">
+        <output-dir compare="Text">group_no_agg</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q10_returned_item">
+        <output-dir compare="Text">q10_returned_item</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q10_returned_item_int64">
+       <output-dir compare="Text">q10_returned_item_int64</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q11_important_stock">
+        <output-dir compare="Text">q11_important_stock</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q12_shipping">
+        <output-dir compare="Text">q12_shipping</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q13_customer_distribution">
+        <output-dir compare="Text">q13_customer_distribution</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q14_promotion_effect">
+        <output-dir compare="Text">q14_promotion_effect</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q15_top_supplier">
+        <output-dir compare="Text">q15_top_supplier</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q16_parts_supplier_relationship">
+        <output-dir compare="Text">q16_parts_supplier_relationship</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q17_small_quantity_order_revenue">
+        <output-dir compare="Text">q17_small_quantity_order_revenue</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q18_large_volume_customer">
+        <output-dir compare="Text">q18_large_volume_customer</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q19_discounted_revenue">
+        <output-dir compare="Text">q19_discounted_revenue</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q1_pricing_summary_report_nt">
+        <output-dir compare="Text">q1_pricing_summary_report_nt</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q20_potential_part_promotion">
+        <output-dir compare="Text">q20_potential_part_promotion</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q21_suppliers_who_kept_orders_waiting">
+        <output-dir compare="Text">q21_suppliers_who_kept_orders_waiting</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q22_global_sales_opportunity">
+        <output-dir compare="Text">q22_global_sales_opportunity</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q2_minimum_cost_supplier">
+        <output-dir compare="Text">q2_minimum_cost_supplier</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q3_shipping_priority_nt">
+        <output-dir compare="Text">q3_shipping_priority_nt</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q4_order_priority">
+        <output-dir compare="Text">q4_order_priority</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q5_local_supplier_volume">
+        <output-dir compare="Text">q5_local_supplier_volume</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q6_forecast_revenue_change">
+        <output-dir compare="Text">q6_forecast_revenue_change</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q7_volume_shipping">
+        <output-dir compare="Text">q7_volume_shipping</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q8_national_market_share">
+        <output-dir compare="Text">q8_national_market_share</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="tpch">
+      <compilation-unit name="q9_product_type_profit_nt">
+        <output-dir compare="Text">q9_product_type_profit_nt</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="writers">
+    <test-case FilePath="writers">
+      <compilation-unit name="print_01">
+        <output-dir compare="Text">print_01</output-dir>
+      </compilation-unit>
+    </test-case>
+<!--  TODO(madhusudancs): Enable this test when REST API supports serialized output support.
+    <test-case FilePath="writers">
+      <compilation-unit name="serialized_01">
+        <output-dir compare="Text">serialized_01</output-dir>
+      </compilation-unit>
+    </test-case>
+-->
+  </test-group>
+  <test-group name="cross-dataverse">
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv01">
+        <output-dir compare="Text">cross-dv01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv02">
+        <output-dir compare="Text">cross-dv02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv03">
+        <output-dir compare="Text">cross-dv03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv04">
+        <output-dir compare="Text">cross-dv04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv07">
+        <output-dir compare="Text">cross-dv07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!--NotImplementedException: No binary comparator factory implemented for type RECORD. 
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv08">
+        <output-dir compare="Text">cross-dv08</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv09">
+        <output-dir compare="Text">cross-dv09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv11">
+        <output-dir compare="Text">cross-dv11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv12">
+        <output-dir compare="Text">cross-dv12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv13">
+        <output-dir compare="Text">cross-dv13</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv14">
+        <output-dir compare="Text">cross-dv14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv15">
+        <output-dir compare="Text">cross-dv15</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv16">
+        <output-dir compare="Text">cross-dv16</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <!--NotImplementedException: No binary comparator factory implemented for type RECORD. 
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv17">
+        <output-dir compare="Text">cross-dv17</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!--NotImplementedException: No binary comparator factory implemented for type RECORD.
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv18">
+        <output-dir compare="Text">cross-dv18</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv19">
+        <output-dir compare="Text">cross-dv19</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="cross-dv20">
+        <output-dir compare="Text">cross-dv20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="insert_across_dataverses">
+        <output-dir compare="Text">insert_across_dataverses</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="cross-dataverse">
+      <compilation-unit name="join_across_dataverses">
+        <output-dir compare="Text">join_across_dataverses</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="user-defined-functions">
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="query-issue201">
+        <output-dir compare="Text">query-issue201</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf01">
+        <output-dir compare="Text">udf01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf02">
+        <output-dir compare="Text">udf02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!-- causes NPE: Issue 200
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf03">
+        <output-dir compare="Text">udf03</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf04">
+        <output-dir compare="Text">udf04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf05">
+        <output-dir compare="Text">udf05</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf06">
+        <output-dir compare="Text">udf06</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf07">
+        <output-dir compare="Text">udf07</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf08">
+        <output-dir compare="Text">udf08</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf09">
+        <output-dir compare="Text">udf09</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf10">
+        <output-dir compare="Text">udf10</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf11">
+        <output-dir compare="Text">udf11</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf12">
+        <output-dir compare="Text">udf12</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf13">
+        <output-dir compare="Text">udf13</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf14">
+        <output-dir compare="Text">udf14</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!-- Issue 166
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf15">
+        <output-dir compare="Text">udf15</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf16">
+        <output-dir compare="Text">udf16</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf17">
+        <output-dir compare="Text">udf17</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf18">
+        <output-dir compare="Text">udf18</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf19">
+        <output-dir compare="Text">udf19</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf20">
+        <output-dir compare="Text">udf20</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf21">
+        <output-dir compare="Text">udf21</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf22">
+        <output-dir compare="Text">udf22</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf23">
+        <output-dir compare="Text">udf23</output-dir>
+      </compilation-unit>
+    </test-case>
+    <!-- Issue 195
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf24">
+        <output-dir compare="Text">udf24</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <!-- Issue 218
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf25">
+        <output-dir compare="Text">udf25</output-dir>
+      </compilation-unit>
+    </test-case>
+    -->
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf26">
+        <output-dir compare="Text">udf26</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="udf27">
+        <output-dir compare="Text">udf27</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
+      <compilation-unit name="f01">
+        <output-dir compare="Text">f01</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error> 
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="load">
+    <test-case FilePath="load">
+      <compilation-unit name="issue14_query">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error> 
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="load">
+      <compilation-unit name="issue315_query">
+        <output-dir compare="Text">none</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error> 
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="load">
+      <compilation-unit name="issue289_query">
+        <output-dir compare="Text">issue289_query</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="hints">
+    <test-case FilePath="hints">
+      <compilation-unit name="issue_251_dataset_hint_5">
+        <output-dir compare="Text">issue_251_dataset_hint_5</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="hints">
+      <compilation-unit name="issue_251_dataset_hint_6">
+        <output-dir compare="Text">issue_251_dataset_hint_6</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="hints">
+      <compilation-unit name="issue_251_dataset_hint_7">
+        <output-dir compare="Text">issue_251_dataset_hint_7</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="feeds">
+    <test-case FilePath="feeds">
+      <compilation-unit name="feeds_01">
+        <output-dir compare="Text">feeds_01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
+      <compilation-unit name="feeds_02">
+        <output-dir compare="Text">feeds_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
+      <compilation-unit name="feeds_03">
+        <output-dir compare="Text">feeds_03</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
+      <compilation-unit name="feeds_04">
+        <output-dir compare="Text">feeds_04</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="feeds">
+      <compilation-unit name="issue_230_feeds">
+        <output-dir compare="Text">issue_230_feeds</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="hdfs">
+    <test-case FilePath="hdfs">
+      <compilation-unit name="issue_245_hdfs">
+        <output-dir compare="Text">issue_245_hdfs</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="hdfs">
+      <compilation-unit name="hdfs_02">
+        <output-dir compare="Text">hdfs_02</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="hdfs">
+      <compilation-unit name="hdfs_03">
+        <output-dir compare="Text">hdfs_03</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+    <test-group name="temporal">
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="accessors">
+        <output-dir compare="Text">accessors</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="adjust_timezone">
+        <output-dir compare="Text">adjust_timezone</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="calendar_duration">
+        <output-dir compare="Text">calendar_duration</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="date_functions">
+        <output-dir compare="Text">date_functions</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="datetime_functions">
+        <output-dir compare="Text">datetime_functions</output-dir>
+      </compilation-unit>
+  	</test-case>
+<!--   	<test-case FilePath="temporal">
+  		<compilation-unit name="insert_from_delimited_ds">
+        <output-dir compare="Text">insert_from_delimited_ds</output-dir>
+      </compilation-unit>
+  	</test-case> -->
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="insert_from_ext_ds">
+        <output-dir compare="Text">insert_from_ext_ds</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="interval_functions">
+        <output-dir compare="Text">interval_functions</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="temporal">
+  		<compilation-unit name="time_functions">
+        <output-dir compare="Text">time_functions</output-dir>
+      </compilation-unit>
+  	</test-case>
+  	<test-case FilePath="constructor">
+  		<compilation-unit name="interval">
+        <output-dir compare="Text">interval</output-dir>
+      </compilation-unit>
+  	</test-case>
+  </test-group>
+  <test-group name="leftouterjoin">
+    <test-case FilePath="leftouterjoin">
+      <compilation-unit name="query_issue285">
+        <output-dir compare="Text">query_issue285</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="leftouterjoin">
+      <compilation-unit name="query_issue285-2">
+        <output-dir compare="Text">query_issue285-2</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+</test-suite>
+
diff --git a/asterix-app/src/test/resources/spatial/local/spatial-drop.aql b/asterix-app/src/test/resources/spatial/local/spatial-drop.aql
index 61d4913..fc881ad 100644
--- a/asterix-app/src/test/resources/spatial/local/spatial-drop.aql
+++ b/asterix-app/src/test/resources/spatial/local/spatial-drop.aql
@@ -11,6 +11,6 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset MyData(MyRecord)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 drop dataset MyData;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/spatial/local/spatial-load.aql b/asterix-app/src/test/resources/spatial/local/spatial-load.aql
index 6c135f3..1df33c0 100644
--- a/asterix-app/src/test/resources/spatial/local/spatial-load.aql
+++ b/asterix-app/src/test/resources/spatial/local/spatial-load.aql
@@ -11,7 +11,7 @@
 set format "edu.uci.ics.asterix.runtime.formats.nontagged.NonTaggedDataFormat";
 
 declare dataset MyData(MyRecord)
-  partitioned by key id on group1;
+  primary key id on group1;
 
 load dataset MyData 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/enlist_data.aql b/asterix-app/src/test/resources/tpch/queries/asterix/enlist_data.aql
index 2eb06f5..b0396f9 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/enlist_data.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/enlist_data.aql
@@ -89,21 +89,21 @@
   asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 enlist dataset Customers;
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/inlined_q18_large_volume_customer.aql b/asterix-app/src/test/resources/tpch/queries/asterix/inlined_q18_large_volume_customer.aql
index 1ac9c1c..bb21d7e 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/inlined_q18_large_volume_customer.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/inlined_q18_large_volume_customer.aql
@@ -46,11 +46,11 @@
       asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to asterix-001:"/tmp/inlined_q18_large_volume_customer.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_adm.aql b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_adm.aql
index e4b3a3b..7b872f0 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_adm.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_adm.aql
@@ -89,21 +89,21 @@
   asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 load dataset LineItems 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_100x.aql b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_100x.aql
index 1d40ba7..c4ccbe0 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_100x.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_100x.aql
@@ -89,21 +89,21 @@
   asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 load dataset Customers 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_1x.aql b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_1x.aql
index bb4a49d..654dcb6 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_1x.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/load_data_tbl_1x.aql
@@ -89,21 +89,21 @@
   asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 load dataset Customers 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/q1_pricing_summary_report.aql b/asterix-app/src/test/resources/tpch/queries/asterix/q1_pricing_summary_report.aql
index b29e7a6..411fdbb 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/q1_pricing_summary_report.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/q1_pricing_summary_report.aql
@@ -23,7 +23,7 @@
       asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 write output to asterix-001:"/home/onose/hyracks-asterix/results/q1_pricing_summary_report.adm";
  
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/q3_shipping_priority.aql b/asterix-app/src/test/resources/tpch/queries/asterix/q3_shipping_priority.aql
index 71ed6db..6f52101 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/q3_shipping_priority.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/q3_shipping_priority.aql
@@ -46,11 +46,11 @@
       asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to asterix-001:"/home/onose/hyracks-asterix/results/q3_shipping_priority.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/q5_local_supplier_volume.aql b/asterix-app/src/test/resources/tpch/queries/asterix/q5_local_supplier_volume.aql
index 8d0d6dd..7544d19 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/q5_local_supplier_volume.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/q5_local_supplier_volume.aql
@@ -69,17 +69,17 @@
       asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
   
 write output to asterix-001:"/home/onose/hyracks-asterix/results/q5_local_supplier.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/asterix/q9_product_type_profit.aql b/asterix-app/src/test/resources/tpch/queries/asterix/q9_product_type_profit.aql
index 3067fbe..164869a 100644
--- a/asterix-app/src/test/resources/tpch/queries/asterix/q9_product_type_profit.aql
+++ b/asterix-app/src/test/resources/tpch/queries/asterix/q9_product_type_profit.aql
@@ -73,17 +73,17 @@
       asterix-005, asterix-006, asterix-007, asterix-008, asterix-009, asterix-010;
       
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
   
 write output to asterix-001:"/home/onose/hyracks-asterix/results/q9_product_type_profit.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/inlined_q18_large_volume_customer.aql b/asterix-app/src/test/resources/tpch/queries/local/inlined_q18_large_volume_customer.aql
index abd06af..280a1d0 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/inlined_q18_large_volume_customer.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/inlined_q18_large_volume_customer.aql
@@ -45,11 +45,11 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/inlined_q18_large_volume_customer.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/load_adm_data.aql b/asterix-app/src/test/resources/tpch/queries/local/load_adm_data.aql
index b7e5b3d..d31c421 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/load_adm_data.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/load_adm_data.aql
@@ -88,21 +88,21 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 load dataset LineItems 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_0.001x_2nodes.aql b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_0.001x_2nodes.aql
index 0d03e5d..47724fa 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_0.001x_2nodes.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_0.001x_2nodes.aql
@@ -88,21 +88,21 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 load dataset LineItems 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_10x_1node.aql b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_10x_1node.aql
index 7c8fc8c..49e2a9a 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_10x_1node.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_10x_1node.aql
@@ -88,21 +88,21 @@
 declare nodegroup group1 on nc1;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 load dataset LineItems 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_1x_1node.aql b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_1x_1node.aql
index b6cf6f8..3e6ccc4 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_1x_1node.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_1x_1node.aql
@@ -88,21 +88,21 @@
 declare nodegroup group1 on nc1;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 load dataset LineItems 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_20x_2node.aql b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_20x_2node.aql
index 606cde1..f44d388 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_20x_2node.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/load_tbl_data_20x_2node.aql
@@ -88,21 +88,21 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 load dataset LineItems 
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
diff --git a/asterix-app/src/test/resources/tpch/queries/local/orders-index-create.aql b/asterix-app/src/test/resources/tpch/queries/local/orders-index-create.aql
index e369f10..9c5e361 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/orders-index-create.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/orders-index-create.aql
@@ -17,6 +17,6 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 create index idx_Orders_Custkey on Orders(o_custkey);
diff --git a/asterix-app/src/test/resources/tpch/queries/local/orders-index-search.aql b/asterix-app/src/test/resources/tpch/queries/local/orders-index-search.aql
index f4c9fd9..66e88a5 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/orders-index-search.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/orders-index-search.aql
@@ -17,7 +17,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 
 declare index idx_Orders_Custkey on Orders(o_custkey);
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/q1_pricing_summary_report.aql b/asterix-app/src/test/resources/tpch/queries/local/q1_pricing_summary_report.aql
index a69528c..9ab0322 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/q1_pricing_summary_report.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/q1_pricing_summary_report.aql
@@ -22,7 +22,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 // for external datasets, use:
 //
diff --git a/asterix-app/src/test/resources/tpch/queries/local/q3_shipping_priority.aql b/asterix-app/src/test/resources/tpch/queries/local/q3_shipping_priority.aql
index b5c27cc..cadc5c9 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/q3_shipping_priority.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/q3_shipping_priority.aql
@@ -45,11 +45,11 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 
 write output to nc1:"/tmp/q3_shipping_priority.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/q5_local_supplier_volume.aql b/asterix-app/src/test/resources/tpch/queries/local/q5_local_supplier_volume.aql
index 9fe2ed6..724d58b 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/q5_local_supplier_volume.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/q5_local_supplier_volume.aql
@@ -68,17 +68,17 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
   
 write output to nc1:"/tmp/q5_local_supplier_volume.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/q9_product_type_profit.aql b/asterix-app/src/test/resources/tpch/queries/local/q9_product_type_profit.aql
index c0643b1..5407270 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/q9_product_type_profit.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/q9_product_type_profit.aql
@@ -72,17 +72,17 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
   
 write output to nc1:"/tmp/q9_product_type_profit.adm";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/scan_filter_lineitem.aql b/asterix-app/src/test/resources/tpch/queries/local/scan_filter_lineitem.aql
index 3855746..ccddad0 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/scan_filter_lineitem.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/scan_filter_lineitem.aql
@@ -22,7 +22,7 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 
 // load dataset LineItems from nc1:"/opt/tpch/tengigs/lineitem.tbl" delimited by "|";
 
diff --git a/asterix-app/src/test/resources/tpch/queries/local/write-custorder.aql b/asterix-app/src/test/resources/tpch/queries/local/write-custorder.aql
index 9757ff8..b767d57 100644
--- a/asterix-app/src/test/resources/tpch/queries/local/write-custorder.aql
+++ b/asterix-app/src/test/resources/tpch/queries/local/write-custorder.aql
@@ -50,13 +50,13 @@
 declare nodegroup group1 on nc1, nc2;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset CustOrder(CustOrderType)
-  partitioned by key co_custkey on group1;
+  primary key co_custkey on group1;
 
 write into dataset CustOrder 
 ( for $c in dataset('Customers')
diff --git a/asterix-app/src/test/resources/tpch/queries/rainbow/load_data_tbl_50x.aql b/asterix-app/src/test/resources/tpch/queries/rainbow/load_data_tbl_50x.aql
index 9635891..7d0295d 100644
--- a/asterix-app/src/test/resources/tpch/queries/rainbow/load_data_tbl_50x.aql
+++ b/asterix-app/src/test/resources/tpch/queries/rainbow/load_data_tbl_50x.aql
@@ -89,21 +89,21 @@
 rainbow-04, rainbow-05;
 
 declare dataset LineItems(LineItemType)
-  partitioned by key l_orderkey, l_linenumber on group1;
+  primary key l_orderkey, l_linenumber on group1;
 declare dataset Orders(OrderType)
-  partitioned by key o_orderkey on group1;
+  primary key o_orderkey on group1;
 declare dataset Customers(CustomerType) 
-  partitioned by key c_custkey on group1;
+  primary key c_custkey on group1;
 declare dataset Suppliers(SupplierType)
-  partitioned by key s_suppkey on group1;
+  primary key s_suppkey on group1;
 declare dataset Nations(NationType) 
-  partitioned by key n_nationkey on group1;
+  primary key n_nationkey on group1;
 declare dataset Regions(RegionType)
-  partitioned by key r_regionkey on group1;
+  primary key r_regionkey on group1;
 declare dataset Parts(PartType)
-  partitioned by key p_partkey on group1;
+  primary key p_partkey on group1;
 declare dataset PartSupp(PartSuppType)
-  partitioned by key ps_partkey, ps_suppkey on group1;  
+  primary key ps_partkey, ps_suppkey on group1;  
 
 
 load dataset Customers from 
diff --git a/asterix-aql/pom.xml b/asterix-aql/pom.xml
index 7ac2cbb..fa1791d 100644
--- a/asterix-aql/pom.xml
+++ b/asterix-aql/pom.xml
@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
@@ -13,8 +14,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -36,14 +38,15 @@
 						<goals>
 							<goal>jjdoc</goal>
 						</goals>
-                        <phase>process-sources</phase>
+						<phase>process-sources</phase>
 					</execution>
 				</executions>
 			</plugin>
 		</plugins>
 		<pluginManagement>
 			<plugins>
-				<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
+				<!--This plugin's configuration is used to store Eclipse m2e settings 
+					only. It has no influence on the Maven build itself. -->
 				<plugin>
 					<groupId>org.eclipse.m2e</groupId>
 					<artifactId>lifecycle-mapping</artifactId>
@@ -64,6 +67,7 @@
 										</versionRange>
 										<goals>
 											<goal>jjdoc</goal>
+											<goal>javacc</goal>
 										</goals>
 									</pluginExecutionFilter>
 									<action>
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java
new file mode 100644
index 0000000..e83a1ed
--- /dev/null
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.aql.base;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
+
+public abstract class AbstractExpression implements Expression {
+	protected List<IExpressionAnnotation> hints;
+	
+	public void addHint(IExpressionAnnotation hint) {
+    	if (hints == null) {
+    		hints = new ArrayList<IExpressionAnnotation>();
+    	}
+    	hints.add(hint);
+    }
+    
+    public boolean hasHints() {
+    	return hints != null;
+    }
+    
+    public List<IExpressionAnnotation> getHints() {
+    	return hints;
+    }
+}
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/ILiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/ILiteral.java
deleted file mode 100644
index 31cb27e..0000000
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/ILiteral.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.aql.base;
-
-import java.io.Serializable;
-
-public interface ILiteral extends Serializable {
-    public enum Type {
-        STRING,
-        INTEGER,
-        NULL,
-        TRUE,
-        FALSE,
-        FLOAT,
-        DOUBLE
-    }
-
-    public Type getLiteralType();
-
-    public String getStringValue();
-
-}
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java
new file mode 100644
index 0000000..f6c779a
--- /dev/null
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.aql.base;
+
+import java.io.Serializable;
+
+public abstract class Literal implements Serializable {
+    /**
+     * 
+     */
+    private static final long serialVersionUID = -6468144574890768345L;
+
+    public enum Type {
+        STRING,
+        INTEGER,
+        NULL,
+        TRUE,
+        FALSE,
+        FLOAT,
+        DOUBLE,
+        LONG
+    }
+
+    abstract public Object getValue();
+    
+    abstract public Type getLiteralType();
+
+    public String getStringValue() {
+        return getValue().toString();
+    }    
+    
+    @Override
+    public int hashCode() {
+        return getValue().hashCode();
+    }    
+
+    public boolean equals(Object obj) {
+        if (!(obj instanceof Literal)) {
+            return false;
+        }
+        Literal literal = (Literal)obj;
+        return getValue().equals(literal.getValue());
+    } 
+    
+    @Override
+    public String toString() {
+        return getStringValue();
+    }    
+}
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionExpressionMap.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionExpressionMap.java
index f30ae09..f013f18 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionExpressionMap.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionExpressionMap.java
@@ -2,9 +2,9 @@
 
 import java.util.HashMap;
 
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
-public class FunctionExpressionMap extends HashMap<Integer, AsterixFunction> {
+public class FunctionExpressionMap extends HashMap<Integer, FunctionSignature> {
     /**
      * 
      */
@@ -24,7 +24,7 @@
         this.varargs = varargs;
     }
 
-    public AsterixFunction get(int arity) {
+    public FunctionSignature get(int arity) {
         if (varargs) {
             return super.get(-1);
         } else {
@@ -32,7 +32,7 @@
         }
     }
 
-    public AsterixFunction put(int arity, AsterixFunction fd) {
+    public FunctionSignature put(int arity, FunctionSignature fd) {
         if (varargs) {
             return super.put(-1, fd);
         } else {
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
index 1027c42..88fff83 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
@@ -3,17 +3,18 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
 public class FunctionSignatures {
-    private final Map<String, FunctionExpressionMap> functionMap;
+    private final Map<FunctionSignature, FunctionExpressionMap> functionMap;
 
     public FunctionSignatures() {
-        functionMap = new HashMap<String, FunctionExpressionMap>();
+        functionMap = new HashMap<FunctionSignature, FunctionExpressionMap>();
     }
 
-    public AsterixFunction get(String name, int arity) {
-        FunctionExpressionMap possibleFD = functionMap.get(name);
+    public FunctionSignature get(String dataverse, String name, int arity) {
+        FunctionSignature fid = new FunctionSignature(dataverse, name, arity);
+        FunctionExpressionMap possibleFD = functionMap.get(fid);
         if (possibleFD == null) {
             return null;
         } else {
@@ -21,12 +22,11 @@
         }
     }
 
-    public void put(AsterixFunction fd, boolean varargs) {
-        String name = fd.getFunctionName();
-        FunctionExpressionMap func = functionMap.get(name);
+    public void put(FunctionSignature fd, boolean varargs) {
+        FunctionExpressionMap func = functionMap.get(fd);
         if (func == null) {
             func = new FunctionExpressionMap(varargs);
-            functionMap.put(name, func);
+            functionMap.put(fd, func);
         }
         func.put(fd.getArity(), fd);
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/Scope.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/Scope.java
index ef338d4..4c1339a 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/Scope.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/Scope.java
@@ -5,7 +5,7 @@
 import edu.uci.ics.asterix.aql.expression.Identifier;
 import edu.uci.ics.asterix.aql.expression.VarIdentifier;
 import edu.uci.ics.asterix.aql.parser.ScopeChecker;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
 public final class Scope {
     private Scope parent;
@@ -78,11 +78,11 @@
      * @param varargs
      *            whether this function has varargs
      */
-    public void addFunctionDescriptor(AsterixFunction fd, boolean varargs) {
+    public void addFunctionDescriptor(FunctionSignature signature, boolean varargs) {
         if (functionSignatures == null) {
             functionSignatures = new FunctionSignatures();
         }
-        functionSignatures.put(fd, varargs);
+        functionSignatures.put(signature, varargs);
     }
 
     /**
@@ -94,13 +94,13 @@
      *            # of arguments
      * @return FunctionDescriptor of the function found; otherwise null
      */
-    public AsterixFunction findFunctionSignature(String name, int arity) {
-        AsterixFunction fd = null;
+    public FunctionSignature findFunctionSignature(String dataverse, String name, int arity) {
+        FunctionSignature fd = null;
         if (functionSignatures != null) {
-            fd = functionSignatures.get(name, arity);
+            fd = functionSignatures.get(dataverse, name, arity);
         }
         if (fd == null && parent != null) {
-            fd = parent.findFunctionSignature(name, arity);
+            fd = parent.findFunctionSignature(dataverse, name, arity);
         }
         return fd;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
index a142534..422ca79 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
@@ -1,6 +1,7 @@
 package edu.uci.ics.asterix.aql.expression;
 
 import java.io.StringReader;
+import java.util.List;
 
 import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
@@ -8,38 +9,71 @@
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.Function;
 
 public class BeginFeedStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
     private Query query;
     private int varCounter;
 
-    public BeginFeedStatement(Identifier datasetName, int varCounter) {
+    public BeginFeedStatement(Identifier dataverseName, Identifier datasetName, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.varCounter = varCounter;
     }
-    
-    public void initialize(FeedDatasetDetails feedDetails){
+
+    public void initialize(MetadataTransactionContext mdTxnCtx, Dataset dataset) throws MetadataException {
         query = new Query();
-        String functionName = feedDetails.getFunctionIdentifier();
-        String stmt;
-        if(functionName == null){
-         stmt = "insert into dataset " + datasetName + " (" + " for $x in feed-ingest ('" + datasetName + "')"
-                + " return $x" + " );";
+        FeedDatasetDetails feedDetails = (FeedDatasetDetails) dataset.getDatasetDetails();
+        String functionName = feedDetails.getFunction() == null ? null : feedDetails.getFunction().getName();
+        StringBuilder builder = new StringBuilder();
+        builder.append("insert into dataset " + datasetName + " ");
+
+        if (functionName == null) {
+            builder.append(" (" + " for $x in feed-ingest ('" + datasetName + "') ");
+            builder.append(" return $x");
         } else {
-           stmt = "insert into dataset " + datasetName + " (" + " for $x in feed-ingest ('" + datasetName + "')"
-           + " return " + functionName + "(" + "$x" + ")" + ");";
+            int arity = feedDetails.getFunction().getArity();
+            FunctionSignature signature = new FunctionSignature(dataset.getDataverseName(), functionName, arity);
+            Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
+            if (function == null) {
+                throw new MetadataException(" Unknown function " + feedDetails.getFunction());
+            }
+            if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+                String param = function.getParams().get(0);
+                builder.append(" (" + " for" + " " + param + " in feed-ingest ('" + datasetName + "') ");
+                builder.append(" let $y:=(" + function.getFunctionBody() + ")" + " return $y");
+            } else {
+                builder.append(" (" + " for $x in feed-ingest ('" + datasetName + "') ");
+                builder.append(" let $y:=" + function.getName() + "(" + "$x" + ")");
+                builder.append(" return $y");
+            }
+
         }
-        AQLParser parser = new AQLParser(new StringReader(stmt));
+        builder.append(")");
+        builder.append(";");
+        AQLParser parser = new AQLParser(new StringReader(builder.toString()));
+
+        List<Statement> statements;
         try {
-            query = (Query) parser.Statement();
+            statements = parser.Statement();
+            query = ((InsertStatement) statements.get(0)).getQuery();
         } catch (ParseException pe) {
-            throw new RuntimeException(pe);
+            throw new MetadataException(pe);
         }
 
-        query = ((InsertStatement) query.getPrologDeclList().get(0)).getQuery();
+    }
+
+    public Identifier getDataverseName() {
+        return dataverseName;
     }
 
     public Identifier getDatasetName() {
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CallExpr.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CallExpr.java
index cda7e69..9bd59d4 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CallExpr.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CallExpr.java
@@ -2,54 +2,44 @@
 
 import java.util.List;
 
+import edu.uci.ics.asterix.aql.base.AbstractExpression;
 import edu.uci.ics.asterix.aql.base.Expression;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
-public class CallExpr implements Expression {
-    private AsterixFunction ident;
+public class CallExpr extends AbstractExpression {
+    private final FunctionSignature functionSignature;
     private List<Expression> exprList;
     private boolean isBuiltin;
 
-    public CallExpr() {
-    }
-
-    public CallExpr(AsterixFunction ident, List<Expression> exprList) {
-        this.ident = ident;
+    public CallExpr(FunctionSignature functionSignature, List<Expression> exprList) {
+        this.functionSignature = functionSignature;
         this.exprList = exprList;
     }
 
-    public AsterixFunction getIdent() {
-        return ident;
-    }
-
-    public void setIdent(AsterixFunction ident) {
-        this.ident = ident;
+    public FunctionSignature getFunctionSignature() {
+        return functionSignature;
     }
 
     public List<Expression> getExprList() {
         return exprList;
     }
 
-    public void setExprList(List<Expression> exprList) {
-        this.exprList = exprList;
-    }
-
     public boolean isBuiltin() {
         return isBuiltin;
     }
 
-    public void setIsBuiltin(boolean builtin) {
-        this.isBuiltin = builtin;
-    }
-
     @Override
     public Kind getKind() {
         return Kind.CALL_EXPRESSION;
     }
 
+    public void setExprList(List<Expression> exprList) {
+        this.exprList = exprList;
+    }
+
     @Override
     public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T arg) throws AsterixException {
         visitor.visit(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
index 844fec6..4ceb0e3 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
@@ -9,7 +9,8 @@
 
 public class ControlFeedStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
 
     public enum OperationType {
         BEGIN,
@@ -22,18 +23,24 @@
     private OperationType operationType;
     private Map<String, String> alterAdapterConfParams;
 
-    public ControlFeedStatement(OperationType operation, Identifier datasetName) {
+    public ControlFeedStatement(OperationType operation, Identifier dataverseName, Identifier datasetName) {
         this.operationType = operation;
         this.datasetName = datasetName;
+        this.dataverseName = dataverseName;
     }
 
-    public ControlFeedStatement(OperationType operation, Identifier datasetName,
+    public ControlFeedStatement(OperationType operation, Identifier dataverseName, Identifier datasetName,
             Map<String, String> alterAdapterConfParams) {
         this.operationType = operation;
         this.datasetName = datasetName;
+        this.dataverseName = dataverseName;
         this.alterAdapterConfParams = alterAdapterConfParams;
     }
-    
+
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
@@ -54,7 +61,7 @@
     public Map<String, String> getAlterAdapterConfParams() {
         return alterAdapterConfParams;
     }
-    
+
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitControlFeedStatement(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
index 6ffd39d..6a8fec6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
@@ -7,39 +7,26 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
 public class CreateFunctionStatement implements Statement {
 
-    private AsterixFunction asterixFunction;
-    private String functionBody;
-    private boolean ifNotExists;
-    private List<String> paramList;
+    private final FunctionSignature signature;
+    private final String functionBody;
+    private final boolean ifNotExists;
+    private final List<String> paramList;
 
-    public AsterixFunction getFunctionIdentifier() {
-        return asterixFunction;
-    }
-
-    public void setFunctionIdentifier(AsterixFunction AsterixFunction) {
-        this.asterixFunction = AsterixFunction;
+    public FunctionSignature getaAterixFunction() {
+        return signature;
     }
 
     public String getFunctionBody() {
         return functionBody;
     }
 
-    public void setFunctionBody(String functionBody) {
-        this.functionBody = functionBody;
-    }
-
-    public void setIfNotExists(boolean ifNotExists) {
-        this.ifNotExists = ifNotExists;
-    }
-
-    public CreateFunctionStatement(AsterixFunction AsterixFunction, List<VarIdentifier> parameterList, String functionBody,
+    public CreateFunctionStatement(FunctionSignature signature, List<VarIdentifier> parameterList, String functionBody,
             boolean ifNotExists) {
-        
-        this.asterixFunction = AsterixFunction;
+        this.signature = signature;
         this.functionBody = functionBody;
         this.ifNotExists = ifNotExists;
         this.paramList = new ArrayList<String>();
@@ -61,8 +48,8 @@
         return paramList;
     }
 
-    public void setParamList(List<String> paramList) {
-        this.paramList = paramList;
+    public FunctionSignature getSignature() {
+        return signature;
     }
 
     @Override
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
index 399092e..ffd0534 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
@@ -13,14 +13,26 @@
 
     private Identifier indexName;
     private boolean needToCreate = true;
+    private Identifier dataverseName;
     private Identifier datasetName;
     private List<String> fieldExprs = new ArrayList<String>();
     private IndexType indexType = IndexType.BTREE;
     private boolean ifNotExists;
 
+    // Specific to NGram indexes.
+    private int gramLength;
+
     public CreateIndexStatement() {
     }
 
+    public void setGramLength(int gramLength) {
+        this.gramLength = gramLength;
+    }
+
+    public int getGramLength() {
+        return gramLength;
+    }
+
     public void setNeedToCreate(boolean needToCreate) {
         this.needToCreate = needToCreate;
     }
@@ -37,6 +49,14 @@
         this.indexName = indexName;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
+    public void setDataverseName(Identifier dataverseName) {
+        this.dataverseName = dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
index 7996062..443524e 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
@@ -14,6 +14,8 @@
  */
 package edu.uci.ics.asterix.aql.expression;
 
+import java.util.Map;
+
 import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
@@ -21,28 +23,29 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public class DatasetDecl implements Statement {
-    protected Identifier name;
-    protected Identifier itemTypeName;
-    protected DatasetType datasetType;
-    protected IDatasetDetailsDecl datasetDetailsDecl;
+    protected final Identifier name;
+    protected final Identifier dataverse;
+    protected final Identifier itemTypeName;
+    protected final DatasetType datasetType;
+    protected final IDatasetDetailsDecl datasetDetailsDecl;
+    protected final Map<String, String> hints;
+    protected final boolean ifNotExists;
 
-    public boolean ifNotExists;
-
-    public DatasetDecl(Identifier name, Identifier itemTypeName, IDatasetDetailsDecl idd, boolean ifNotExists) {
+    public DatasetDecl(Identifier dataverse, Identifier name, Identifier itemTypeName, Map<String, String> hints,
+            DatasetType datasetType, IDatasetDetailsDecl idd, boolean ifNotExists) {
+        this.dataverse = dataverse;
         this.name = name;
         this.itemTypeName = itemTypeName;
+        this.hints = hints;
         this.ifNotExists = ifNotExists;
-        datasetDetailsDecl = idd;
+        this.datasetType = datasetType;
+        this.datasetDetailsDecl = idd;
     }
 
     public boolean getIfNotExists() {
         return this.ifNotExists;
     }
 
-    public void setDatasetType(DatasetType datasetType) {
-        this.datasetType = datasetType;
-    }
-
     public DatasetType getDatasetType() {
         return datasetType;
     }
@@ -51,16 +54,12 @@
         return name;
     }
 
-    public void setName(Identifier name) {
-        this.name = name;
-    }
-
     public Identifier getItemTypeName() {
         return itemTypeName;
     }
 
-    public void setItemTypeName(Identifier itemTypeName) {
-        this.itemTypeName = itemTypeName;
+    public Map<String, String> getHints() {
+        return hints;
     }
 
     @Override
@@ -82,7 +81,8 @@
         return datasetDetailsDecl;
     }
 
-    public void setDatasetDetailsDecl(IDatasetDetailsDecl datasetDetailsDecl) {
-        this.datasetDetailsDecl = datasetDetailsDecl;
+    public Identifier getDataverse() {
+        return dataverse;
     }
+
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
index 9d957cf..48b7909 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
@@ -10,14 +10,16 @@
 public class DeleteStatement implements Statement {
 
     private VariableExpr vars;
+    private Identifier dataverseName;
     private Identifier datasetName;
     private Expression condition;
     private Clause dieClause;
     private int varCounter;
 
-    public DeleteStatement(VariableExpr vars, Identifier datasetName, Expression condition, Clause dieClause,
-            int varCounter) {
+    public DeleteStatement(VariableExpr vars, Identifier dataverseName, Identifier datasetName, Expression condition,
+            Clause dieClause, int varCounter) {
         this.vars = vars;
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.condition = condition;
         this.dieClause = dieClause;
@@ -33,6 +35,10 @@
         return vars;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
index 9ddec0e..76d952b 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
@@ -7,10 +7,12 @@
 
 public class DropStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
     private boolean ifExists;
 
-    public DropStatement(Identifier datasetName, boolean ifExists) {
+    public DropStatement(Identifier dataverseName, Identifier datasetName, boolean ifExists) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.ifExists = ifExists;
     }
@@ -20,6 +22,10 @@
         return Kind.DATASET_DROP;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FeedDetailsDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FeedDetailsDecl.java
index cb32ac6..2c99a3d 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FeedDetailsDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FeedDetailsDecl.java
@@ -14,34 +14,37 @@
  */
 package edu.uci.ics.asterix.aql.expression;
 
+import java.util.List;
 import java.util.Map;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+
 public class FeedDetailsDecl extends InternalDetailsDecl {
-    private Map<String, String> properties;
-    private String adapterClassname;
-    private String functionIdentifier;
+    private final Map<String, String> configuration;
+    private final String adapterFactoryClassname;
+    private final FunctionSignature functionSignature;
 
-    public void setFunctionIdentifier(String functionIdentifier) {
-        this.functionIdentifier = functionIdentifier;
+    public FeedDetailsDecl(String adapterFactoryClassname, Map<String, String> configuration,
+            FunctionSignature signature, Identifier nodeGroupName, List<String> partitioningExpr) {
+        super(nodeGroupName, partitioningExpr);
+        this.adapterFactoryClassname = adapterFactoryClassname;
+        this.configuration = configuration;
+        this.functionSignature = signature;
     }
 
-    public void setAdapterClassname(String adapter) {
-        this.adapterClassname = adapter;
+    public Map<String, String> getConfiguration() {
+        return configuration;
     }
 
-    public void setProperties(Map<String, String> properties) {
-        this.properties = properties;
+    public String getAdapterFactoryClassname() {
+        return adapterFactoryClassname;
     }
 
-    public String getAdapterClassname() {
-        return adapterClassname;
+    public FunctionSignature getSignature() {
+        return functionSignature;
     }
 
-    public Map<String, String> getProperties() {
-        return properties;
-    }
-
-    public String getFunctionIdentifier() {
-        return functionIdentifier;
+    public FunctionSignature getFunctionSignature() {
+        return functionSignature;
     }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDecl.java
index e69035a..8871c79 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDecl.java
@@ -7,38 +7,27 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
 public class FunctionDecl implements Statement {
-    private AsterixFunction ident;
+    private FunctionSignature signature;
     private List<VarIdentifier> paramList;
     private Expression funcBody;
 
-    public FunctionDecl() {
-    }
-
-    public FunctionDecl(AsterixFunction ident, List<VarIdentifier> paramList, Expression funcBody) {
-        this.ident = ident;
+    public FunctionDecl(FunctionSignature signature, List<VarIdentifier> paramList, Expression funcBody) {
+        this.signature = signature;
         this.paramList = paramList;
         this.funcBody = funcBody;
     }
 
-    public AsterixFunction getIdent() {
-        return ident;
-    }
-
-    public void setIdent(AsterixFunction ident) {
-        this.ident = ident;
+    public FunctionSignature getSignature() {
+        return signature;
     }
 
     public List<VarIdentifier> getParamList() {
         return paramList;
     }
 
-    public void setParamList(List<VarIdentifier> paramList) {
-        this.paramList = paramList;
-    }
-
     public Expression getFuncBody() {
         return funcBody;
     }
@@ -47,6 +36,24 @@
         this.funcBody = funcBody;
     }
 
+    public void setSignature(FunctionSignature signature) {
+        this.signature = signature;
+    }
+
+    public void setParamList(List<VarIdentifier> paramList) {
+        this.paramList = paramList;
+    }
+
+    @Override
+    public int hashCode() {
+        return signature.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        return (o instanceof FunctionDecl && ((FunctionDecl) o).getSignature().equals(signature));
+    }
+
     @Override
     public Kind getKind() {
         return Kind.FUNCTION_DECL;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
index 4b96143..054bc5a 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
@@ -4,16 +4,15 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 
 public class FunctionDropStatement implements Statement {
 
-    private Identifier functionName;
-    private int arity;
+    private final FunctionSignature signature;
     private boolean ifExists;
 
-    public FunctionDropStatement(Identifier functionName, int arity, boolean ifExists) {
-        this.functionName = functionName;
-        this.arity = arity;
+    public FunctionDropStatement(FunctionSignature signature, boolean ifExists) {
+        this.signature = signature;
         this.ifExists = ifExists;
     }
 
@@ -22,22 +21,14 @@
         return Kind.FUNCTION_DROP;
     }
 
-    public Identifier getFunctionName() {
-        return functionName;
+    public FunctionSignature getFunctionSignature() {
+        return signature;
     }
 
     public boolean getIfExists() {
         return ifExists;
     }
 
-    public int getArity() {
-        return arity;
-    }
-
-    public void setArity(int arity) {
-        this.arity = arity;
-    }
-
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitFunctionDropStatement(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
index b69ccd1..43831d0 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
@@ -7,12 +7,14 @@
 
 public class IndexDropStatement implements Statement {
 
+    private Identifier dataverseName;
     private Identifier datasetName;
     private Identifier indexName;
     private boolean ifExists;
 
-    public IndexDropStatement(Identifier dataverseName, Identifier indexName, boolean ifExists) {
-        this.datasetName = dataverseName;
+    public IndexDropStatement(Identifier dataverseName, Identifier datasetName, Identifier indexName, boolean ifExists) {
+        this.dataverseName = dataverseName;
+        this.datasetName = datasetName;
         this.indexName = indexName;
         this.ifExists = ifExists;
     }
@@ -22,6 +24,10 @@
         return Kind.INDEX_DROP;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
index 7faa33e..c7b1f6d 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
@@ -7,11 +7,13 @@
 
 public class InsertStatement implements Statement {
 
-    private Identifier datasetName;
-    private Query query;
-    private int varCounter;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
+    private final Query query;
+    private final int varCounter;
 
-    public InsertStatement(Identifier datasetName, Query query, int varCounter) {
+    public InsertStatement(Identifier dataverseName, Identifier datasetName, Query query, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.query = query;
         this.varCounter = varCounter;
@@ -22,6 +24,10 @@
         return Kind.INSERT;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
index a680e48..2a7c89c 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InternalDetailsDecl.java
@@ -14,31 +14,24 @@
  */
 package edu.uci.ics.asterix.aql.expression;
 
-import java.util.ArrayList;
 import java.util.List;
 
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
 
 public class InternalDetailsDecl implements IDatasetDetailsDecl {
-    private Identifier nodegroupName = new Identifier(MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME);
-    private List<String> partitioningExprs = new ArrayList<String>();
+    private final Identifier nodegroupName;
+    private final List<String> partitioningExprs;
 
-    public void addPartitioningExpr(String pe) {
-        this.partitioningExprs.add(pe);
-    }
-
-    public void addPartitioningExprList(List<String> peList) {
-        this.partitioningExprs = peList;
+    public InternalDetailsDecl(Identifier nodeGroupName, List<String> partitioningExpr) {
+        this.nodegroupName = nodeGroupName == null ? new Identifier(MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME)
+                : nodeGroupName;
+        this.partitioningExprs = partitioningExpr;
     }
 
     public List<String> getPartitioningExprs() {
         return partitioningExprs;
     }
 
-    public void setNodegroupName(Identifier nodegroupName) {
-        this.nodegroupName = nodegroupName;
-    }
-
     public Identifier getNodegroupName() {
         return nodegroupName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/JoinClause.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/JoinClause.java
index f04c4ae..0a75747 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/JoinClause.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/JoinClause.java
@@ -8,7 +8,7 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlPlusExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 public class JoinClause implements Clause {
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LiteralExpr.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LiteralExpr.java
index ba94cfc..496b0e0 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LiteralExpr.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LiteralExpr.java
@@ -1,26 +1,26 @@
 package edu.uci.ics.asterix.aql.expression;
 
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public class LiteralExpr implements Expression {
-    private ILiteral value;
+    private Literal value;
 
     public LiteralExpr() {
     }
 
-    public LiteralExpr(ILiteral value) {
+    public LiteralExpr(Literal value) {
         this.value = value;
     }
 
-    public ILiteral getValue() {
+    public Literal getValue() {
         return value;
     }
 
-    public void setValue(ILiteral value) {
+    public void setValue(Literal value) {
         this.value = value;
     }
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
index 011ee898..ecbdb42 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
@@ -10,12 +10,14 @@
 public class LoadFromFileStatement implements Statement {
 
     private Identifier datasetName;
+    private Identifier dataverseName;
     private String adapter;
     private Map<String, String> properties;
     private boolean dataIsLocallySorted;
 
-    public LoadFromFileStatement(Identifier datasetName, String adapter, Map<String, String> propertiees,
-            boolean dataIsLocallySorted) {
+    public LoadFromFileStatement(Identifier dataverseName, Identifier datasetName, String adapter,
+            Map<String, String> propertiees, boolean dataIsLocallySorted) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.adapter = adapter;
         this.properties = propertiees;
@@ -38,6 +40,14 @@
         this.properties = properties;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
+    public void setDataverseName(Identifier dataverseName) {
+        this.dataverseName = dataverseName;
+    }
+
     @Override
     public Kind getKind() {
         return Kind.LOAD_FROM_FILE;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableClause.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableClause.java
index b5c8a8a..c93860e 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableClause.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableClause.java
@@ -5,7 +5,7 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlPlusExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 public class MetaVariableClause implements Clause {
     private VarIdentifier var;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableExpr.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableExpr.java
index cb78d24..dd929f9 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableExpr.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/MetaVariableExpr.java
@@ -4,7 +4,7 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlPlusExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 public class MetaVariableExpr extends VariableExpr {
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/OperatorExpr.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/OperatorExpr.java
index b6bb55b..23d2179 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/OperatorExpr.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/OperatorExpr.java
@@ -2,12 +2,13 @@
 
 import java.util.ArrayList;
 
+import edu.uci.ics.asterix.aql.base.AbstractExpression;
 import edu.uci.ics.asterix.aql.base.Expression;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
-public class OperatorExpr implements Expression {
+public class OperatorExpr extends AbstractExpression {
     private ArrayList<Expression> exprList;
     private ArrayList<OperatorType> opList;
     private ArrayList<Integer> exprBroadcastIdx;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
index 6e851b0..92ad0ee 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
@@ -1,8 +1,5 @@
 package edu.uci.ics.asterix.aql.expression;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import edu.uci.ics.asterix.aql.base.Expression;
 import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
@@ -10,59 +7,39 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public class Query implements Statement {
-    private Expression body;
-    private List<Statement> prologDeclList = new ArrayList<Statement>();
-    private boolean isDummyQuery = false;
+	private Expression body;
+	private int varCounter;
 
-    public Query() {
-    }
+	public Expression getBody() {
+		return body;
+	}
 
-    public Query(boolean isDummyQuery) {
-        this.isDummyQuery = isDummyQuery;
-    }
+	public void setBody(Expression body) {
+		this.body = body;
+	}
 
-    public boolean isDummyQuery() {
-        return isDummyQuery;
-    }
+	public int getVarCounter() {
+		return varCounter;
+	}
 
-    public Expression getBody() {
-        return body;
-    }
+	public void setVarCounter(int varCounter) {
+		this.varCounter = varCounter;
+	}
 
-    public void setBody(Expression body) {
-        this.body = body;
-    }
+	@Override
+	public Kind getKind() {
+		return Kind.QUERY;
+	}
 
-    public void addPrologDecl(Statement stmt) {
-        this.prologDeclList.add(stmt);
-    }
+	@Override
+	public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T step)
+			throws AsterixException {
+		visitor.visit(this, step);
+	}
 
-    public List<Statement> getPrologDeclList() {
-        return prologDeclList;
-    }
-
-    public void setPrologDeclList(List<Statement> prologDeclList) {
-        this.prologDeclList = prologDeclList;
-    }
-
-    // public void addFunctionDecl(FunctionDeclClass fc){
-    // if(functionDeclList == null){
-    // functionDeclList = new ArrayList<FunctionDeclClass>();
-    // }
-    // functionDeclList.add(fc);
-    // }
-    @Override
-    public Kind getKind() {
-        return Kind.QUERY;
-    }
-
-    @Override
-    public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T step) throws AsterixException {
-        visitor.visit(this, step);
-    }
-
-    @Override
-    public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
-        return visitor.visitQuery(this, arg);
-    }
+	@Override
+	public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg)
+			throws AsterixException {
+		return visitor.visitQuery(this, arg);
+	}
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDecl.java
index b7ccc8f..2e75ca7 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDecl.java
@@ -8,26 +8,33 @@
 
 public class TypeDecl implements Statement {
 
+    private final Identifier dataverseName;
     private final Identifier ident;
     private final TypeExpression typeDef;
     private final TypeDataGen datagenAnnotation;
     private final boolean ifNotExists;
 
-    public TypeDecl(Identifier ident, TypeExpression typeDef, TypeDataGen datagen, boolean ifNotExists) {
+    public TypeDecl(Identifier dataverseName, Identifier ident, TypeExpression typeDef, TypeDataGen datagen,
+            boolean ifNotExists) {
+        this.dataverseName = dataverseName;
         this.ident = ident;
         this.typeDef = typeDef;
         this.datagenAnnotation = datagen;
         this.ifNotExists = ifNotExists;
     }
 
-    public TypeDecl(Identifier ident, TypeExpression typeDef) {
-        this(ident, typeDef, null, false);
+    public TypeDecl(Identifier dataverse, Identifier ident, TypeExpression typeDef) {
+        this(dataverse, ident, typeDef, null, false);
     }
 
     public Identifier getIdent() {
         return ident;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public TypeExpression getTypeDef() {
         return typeDef;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDropStatement.java
index b50dbdd..4776b51 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeDropStatement.java
@@ -7,10 +7,12 @@
 
 public class TypeDropStatement implements Statement {
 
+    private final Identifier dataverseName;
     private Identifier typeName;
     private boolean ifExists;
 
-    public TypeDropStatement(Identifier typeName, boolean ifExists) {
+    public TypeDropStatement(Identifier dataverseName, Identifier typeName, boolean ifExists) {
+        this.dataverseName = dataverseName;
         this.typeName = typeName;
         this.ifExists = ifExists;
     }
@@ -20,6 +22,10 @@
         return Kind.TYPE_DROP;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getTypeName() {
         return typeName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeReferenceExpression.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeReferenceExpression.java
index 88673fa..dfd4dc8 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeReferenceExpression.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/TypeReferenceExpression.java
@@ -6,7 +6,7 @@
 
 public class TypeReferenceExpression extends TypeExpression {
 
-    private Identifier ident;
+    private final Identifier ident;
 
     public TypeReferenceExpression(Identifier ident) {
         this.ident = ident;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
index b45f5da..10a9bd6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
@@ -7,12 +7,14 @@
 
 public class WriteFromQueryResultStatement implements Statement {
 
+    private Identifier dataverseName;
     private Identifier datasetName;
 
     private Query query;
     private int varCounter;
 
-    public WriteFromQueryResultStatement(Identifier datasetName, Query query, int varCounter) {
+    public WriteFromQueryResultStatement(Identifier dataverseName, Identifier datasetName, Query query, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.query = query;
         this.varCounter = varCounter;
@@ -23,6 +25,10 @@
         return Kind.WRITE_FROM_QUERY_RESULT;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
index f01991b..ab55e34 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
@@ -6,7 +6,7 @@
 
 import edu.uci.ics.asterix.aql.base.Clause;
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
 import edu.uci.ics.asterix.aql.expression.CallExpr;
@@ -33,6 +33,7 @@
 import edu.uci.ics.asterix.aql.expression.IndexAccessor;
 import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
 import edu.uci.ics.asterix.aql.expression.InsertStatement;
+import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
 import edu.uci.ics.asterix.aql.expression.LetClause;
 import edu.uci.ics.asterix.aql.expression.LimitClause;
 import edu.uci.ics.asterix.aql.expression.ListConstructor;
@@ -67,7 +68,6 @@
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
 
 public class AQLPrintVisitor implements IAqlVisitorWithVoidReturn<Integer> {
     // private int level =0;
@@ -90,9 +90,6 @@
 
     @Override
     public void visit(Query q, Integer step) throws AsterixException {
-        for (Statement d : q.getPrologDeclList()) {
-            d.accept(this, step);
-        }
         if (q.getBody() != null) {
             out.println("Query:");
             q.getBody().accept(this, step);
@@ -103,9 +100,9 @@
 
     @Override
     public void visit(LiteralExpr l, Integer step) {
-        ILiteral lc = l.getValue();
-        if (lc.getLiteralType().equals(ILiteral.Type.TRUE) || lc.getLiteralType().equals(ILiteral.Type.FALSE)
-                || lc.getLiteralType().equals(ILiteral.Type.NULL)) {
+        Literal lc = l.getValue();
+        if (lc.getLiteralType().equals(Literal.Type.TRUE) || lc.getLiteralType().equals(Literal.Type.FALSE)
+                || lc.getLiteralType().equals(Literal.Type.NULL)) {
             out.println(skip(step) + "LiteralExpr [" + l.getValue().getLiteralType() + "]");
         } else {
             out.println(skip(step) + "LiteralExpr [" + l.getValue().getLiteralType() + "] ["
@@ -148,7 +145,7 @@
 
     @Override
     public void visit(CallExpr pf, Integer step) throws AsterixException {
-        out.println(skip(step) + "FunctionCall " + pf.getIdent().toString() + "[");
+        out.println(skip(step) + "FunctionCall " + pf.getFunctionSignature().toString() + "[");
         for (Expression expr : pf.getExprList()) {
             expr.accept(this, step + 1);
         }
@@ -294,7 +291,7 @@
 
     @Override
     public void visit(FunctionDecl fd, Integer step) throws AsterixException {
-        out.println(skip(step) + "FunctionDecl " + fd.getIdent().getFunctionName() + "(" + fd.getParamList().toString()
+        out.println(skip(step) + "FunctionDecl " + fd.getSignature().getName() + "(" + fd.getParamList().toString()
                 + ") {");
         fd.getFuncBody().accept(this, step + 1);
         out.println(skip(step) + "}");
@@ -522,19 +519,19 @@
     @Override
     public void visit(CreateFunctionStatement cfs, Integer arg) throws AsterixException {
         // TODO Auto-generated method stub
-        
+
     }
 
     @Override
     public void visit(FunctionDropStatement fds, Integer arg) throws AsterixException {
         // TODO Auto-generated method stub
-        
+
     }
 
     @Override
     public void visit(BeginFeedStatement stmtDel, Integer arg) throws AsterixException {
         // TODO Auto-generated method stub
-        
+
     }
 
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
index d35f5f3..fb0c827 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class DoubleLiteral implements ILiteral {
+public class DoubleLiteral extends Literal {
     /**
      * 
      */
@@ -28,10 +28,12 @@
         this.value = value;
     }
 
+    @Override    
     public Double getValue() {
         return value;
     }
 
+
     public void setValue(Double value) {
         this.value = value;
     }
@@ -40,28 +42,4 @@
     public Type getLiteralType() {
         return Type.DOUBLE;
     }
-
-    @Override
-    public String getStringValue() {
-        return value.toString();
-    }
-
-    @Override
-    public String toString() {
-        return getStringValue();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof DoubleLiteral)) {
-            return false;
-        }
-        DoubleLiteral d = (DoubleLiteral) obj;
-        return d.getValue() == value;
-    }
-
-    @Override
-    public int hashCode() {
-        return value.hashCode();
-    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FalseLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FalseLiteral.java
index 17b4254..7f19b84 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FalseLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FalseLiteral.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class FalseLiteral implements ILiteral {
+public class FalseLiteral extends Literal {
 
     private static final long serialVersionUID = -750814844423165149L;
 
@@ -49,4 +49,9 @@
     public int hashCode() {
         return (int) serialVersionUID;
     }
+
+    @Override
+    public Boolean getValue() {
+        return Boolean.FALSE;
+    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
index f77ed39..b2db6a1 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class FloatLiteral implements ILiteral {
+public class FloatLiteral extends Literal {
     /**
      * 
      */
@@ -28,10 +28,12 @@
         this.value = value;
     }
 
+    @Override
     public Float getValue() {
         return value;
     }
 
+    
     public void setValue(Float value) {
         this.value = value;
     }
@@ -40,28 +42,4 @@
     public Type getLiteralType() {
         return Type.FLOAT;
     }
-
-    @Override
-    public String getStringValue() {
-        return value.toString();
-    }
-
-    @Override
-    public String toString() {
-        return getStringValue();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof FloatLiteral)) {
-            return false;
-        }
-        FloatLiteral f = (FloatLiteral) obj;
-        return f.getValue() == value;
-    }
-
-    @Override
-    public int hashCode() {
-        return value.hashCode();
-    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/IntegerLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/IntegerLiteral.java
index 52cf7fa..f29feb8 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/IntegerLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/IntegerLiteral.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class IntegerLiteral implements ILiteral {
+public class IntegerLiteral extends Literal {
     /**
      * 
      */
@@ -37,32 +37,7 @@
     }
 
     @Override
-    public String toString() {
-        return getStringValue();
-    }
-
-    @Override
     public Type getLiteralType() {
         return Type.INTEGER;
     }
-
-    @Override
-    public String getStringValue() {
-        return value.toString();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof IntegerLiteral)) {
-            return false;
-        }
-        IntegerLiteral i = (IntegerLiteral) obj;
-        return value.equals(i.getValue());
-    }
-
-    @Override
-    public int hashCode() {
-        return value;
-    }
-
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/LongIntegerLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/LongIntegerLiteral.java
new file mode 100644
index 0000000..7e02f04
--- /dev/null
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/LongIntegerLiteral.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.aql.literal;
+
+import edu.uci.ics.asterix.aql.base.Literal;
+
+public class LongIntegerLiteral extends Literal {
+    /**
+     * 
+     */
+    private static final long serialVersionUID = -8633520244871361967L;
+    private Long value;
+
+    public LongIntegerLiteral(Long value) {
+        super();
+        this.value = value;
+    }
+
+    @Override
+    public Long getValue() {
+        return value;
+    }
+
+    public void setValue(Long value) {
+        this.value = value;
+    }
+
+    @Override
+    public Type getLiteralType() {
+        return Type.LONG;
+    }
+}
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
index b421afa..efcb9c6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class NullLiteral implements ILiteral {
+public class NullLiteral extends Literal {
 
     /**
      * 
@@ -39,11 +39,6 @@
     }
 
     @Override
-    public String toString() {
-        return getStringValue();
-    }
-
-    @Override
     public boolean equals(Object obj) {
         return obj == INSTANCE;
     }
@@ -52,4 +47,9 @@
     public int hashCode() {
         return (int) serialVersionUID;
     }
+
+    @Override
+    public Object getValue() {
+        return null;
+    }    
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/StringLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/StringLiteral.java
index ad5588f..0fd586c 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/StringLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/StringLiteral.java
@@ -1,8 +1,8 @@
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class StringLiteral implements ILiteral {
+public class StringLiteral extends Literal {
 
     private static final long serialVersionUID = -6342491706277606168L;
     private String value;
@@ -29,24 +29,4 @@
     public String getStringValue() {
         return value;
     }
-
-    @Override
-    public String toString() {
-        return getStringValue();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof StringLiteral)) {
-            return false;
-        }
-        StringLiteral s = (StringLiteral) obj;
-        return value.equals(s.getValue());
-    }
-
-    @Override
-    public int hashCode() {
-        return value.hashCode();
-    }
-
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/TrueLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/TrueLiteral.java
index dedd52b..80d7966 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/TrueLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/TrueLiteral.java
@@ -1,8 +1,8 @@
 package edu.uci.ics.asterix.aql.literal;
 
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 
-public class TrueLiteral implements ILiteral {
+public class TrueLiteral extends Literal {
     private static final long serialVersionUID = -8513245514578847512L;
 
     private TrueLiteral() {
@@ -34,4 +34,9 @@
     public int hashCode() {
         return (int) serialVersionUID;
     }
+
+    @Override
+    public Boolean getValue() {
+        return Boolean.TRUE;
+    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
index 5171d5a..39edfda 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
@@ -4,7 +4,7 @@
 
 import edu.uci.ics.asterix.aql.context.Scope;
 import edu.uci.ics.asterix.aql.expression.Identifier;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 
 public abstract class ScopeChecker {
@@ -15,6 +15,14 @@
 
     protected Stack<Scope> forbiddenScopeStack = new Stack<Scope>();
 
+    protected String[] inputLines;
+
+    protected String defaultDataverse;
+
+    protected void setInput(String s) {
+        inputLines = s.split("\n");
+    }
+
     // Forbidden scopes are used to disallow, in a limit clause, variables
     // having the same name as a variable defined by the FLWOR in which that
     // limit clause appears.
@@ -95,9 +103,9 @@
      * 
      * @return functionDescriptor
      */
-    public final AsterixFunction lookupFunctionSignature(String name, int arity) {
-        if (name != null) {
-            return getCurrentScope().findFunctionSignature(name, arity);
+    public final FunctionSignature lookupFunctionSignature(String dataverse, String name, int arity) {
+        if (dataverse != null) {
+            return getCurrentScope().findFunctionSignature(dataverse, name, arity);
         } else {
             return null;
         }
@@ -137,4 +145,18 @@
         String stripped = s.substring(1, s.length() - 1);
         return stripped.replaceAll("\\\\" + q, "\\" + q);
     }
+
+    public String extractFragment(int beginLine, int beginColumn, int endLine, int endColumn) {
+        StringBuilder extract = new StringBuilder();
+        extract.append(inputLines[beginLine - 1].trim().length() > 1 ? inputLines[beginLine - 1].trim().substring(beginColumn)
+                : "");
+        for (int i = beginLine + 1; i < endLine; i++) {
+            extract.append("\n");
+            extract.append(inputLines[i - 1]);
+        }
+        extract.append("\n");
+        extract.append(inputLines[endLine - 1].substring(0, endColumn - 1));
+        return extract.toString().trim();
+    }
+
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
index fdb56be..62e40fa 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
@@ -2,12 +2,13 @@
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import edu.uci.ics.asterix.aql.base.Clause;
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.base.Expression.Kind;
 import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
 import edu.uci.ics.asterix.aql.expression.CallExpr;
@@ -67,6 +68,7 @@
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.entities.Function;
@@ -77,21 +79,22 @@
 
 public final class AqlRewriter {
 
-    private Query topExpr;
-    private AqlRewritingContext context;
-    private MetadataTransactionContext mdTxnCtx;
-    private String dataverseName;
+    private final Query topExpr;
+    private final List<FunctionDecl> declaredFunctions;
+    private final AqlRewritingContext context;
+    private final MetadataTransactionContext mdTxnCtx;
 
     private enum DfsColor {
-        WHITE, GRAY, BLACK
+        WHITE,
+        GRAY,
+        BLACK
     }
 
-    public AqlRewriter(Query topExpr, int varCounter, MetadataTransactionContext txnContext, String dataverseName) {
+    public AqlRewriter(List<FunctionDecl> declaredFunctions, Query topExpr, MetadataTransactionContext mdTxnCtx) {
         this.topExpr = topExpr;
-        context = new AqlRewritingContext(varCounter);
-        mdTxnCtx = txnContext;
-        this.dataverseName = dataverseName;
-
+        context = new AqlRewritingContext(topExpr.getVarCounter());
+        this.declaredFunctions = declaredFunctions;
+        this.mdTxnCtx = mdTxnCtx;
     }
 
     public Query getExpr() {
@@ -129,130 +132,98 @@
         if (topExpr == null) {
             return;
         }
-        List<FunctionDecl> fdecls = buildFunctionDeclList(topExpr);
-        List<AsterixFunction> funIds = new ArrayList<AsterixFunction>();
-        for (FunctionDecl fdecl : fdecls) {
-            funIds.add(fdecl.getIdent());
+        List<FunctionSignature> funIds = new ArrayList<FunctionSignature>();
+        for (FunctionDecl fdecl : declaredFunctions) {
+            funIds.add(fdecl.getSignature());
         }
 
         List<FunctionDecl> otherFDecls = new ArrayList<FunctionDecl>();
         buildOtherUdfs(topExpr.getBody(), otherFDecls, funIds);
-        fdecls.addAll(otherFDecls);
-        if (!fdecls.isEmpty()) {
-            checkRecursivity(fdecls);
+        declaredFunctions.addAll(otherFDecls);
+        if (!declaredFunctions.isEmpty()) {
             InlineUdfsVisitor visitor = new InlineUdfsVisitor(context);
-            while (topExpr.accept(visitor, fdecls)) {
+            while (topExpr.accept(visitor, declaredFunctions)) {
                 // loop until no more changes
             }
         }
     }
 
     private void buildOtherUdfs(Expression expression, List<FunctionDecl> functionDecls,
-            List<AsterixFunction> declaredFunctions) throws AsterixException {
+            List<FunctionSignature> declaredFunctions) throws AsterixException {
         if (expression == null) {
             return;
         }
 
-        List<AsterixFunction> functionCalls = getFunctionCalls(expression);
-        for (AsterixFunction funId : functionCalls) {
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-                    funId.getFunctionName(), false))) {
+        Set<FunctionSignature> functionCalls = getFunctionCalls(expression);
+        for (FunctionSignature signature : functionCalls) {
+
+            if (declaredFunctions != null && declaredFunctions.contains(signature)) {
                 continue;
             }
 
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-                    funId.getFunctionName(), false))) {
-                continue;
+            FunctionDecl functionDecl = lookupUserDefinedFunctionDecl(signature);
+            if (functionDecl != null) {
+                if (functionDecls.contains(functionDecl)) {
+                    throw new AsterixException(" Detected recursvity!");
+                } else {
+                    functionDecls.add(functionDecl);
+                    buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
+                }
+            } else {
+                if (isBuiltinFunction(signature)) {
+                    continue;
+                } else {
+                    throw new AsterixException(" unknown function " + signature);
+                }
             }
-            
-            if (declaredFunctions != null && declaredFunctions.contains(funId)) {
-                continue;
-            }
-
-            FunctionDecl functionDecl = getFunctionDecl(funId);
-            if (functionDecls.contains(functionDecl)) {
-                throw new AsterixException(" Detected recursvity!");
-            }
-            functionDecls.add(functionDecl);
-            buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
         }
     }
 
-    private FunctionDecl getFunctionDecl(AsterixFunction funId) throws AsterixException {
-        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, dataverseName, funId.getFunctionName(), funId
-                .getArity());
+    private FunctionDecl lookupUserDefinedFunctionDecl(FunctionSignature signature) throws AsterixException {
+        if (signature.getNamespace() == null) {
+            return null;
+        }
+        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
         if (function == null) {
-            throw new AsterixException(" unknown function " + funId);
+            return null;
         }
         return FunctionUtils.getFunctionDecl(function);
 
     }
 
-    private List<AsterixFunction> getFunctionCalls(Expression expression) throws AsterixException {
+    private boolean isBuiltinFunction(FunctionSignature functionSignature) {
+        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+                functionSignature.getName(), functionSignature.getArity()))) {
+            return true;
+        }
+
+        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(
+                AlgebricksBuiltinFunctions.ALGEBRICKS_NS, functionSignature.getName(), functionSignature.getArity()))) {
+            return true;
+        }
+
+        return false;
+
+    }
+
+    private Set<FunctionSignature> getFunctionCalls(Expression expression) throws AsterixException {
         Map<AsterixFunction, DfsColor> color = new HashMap<AsterixFunction, DfsColor>();
         Map<AsterixFunction, List<AsterixFunction>> arcs = new HashMap<AsterixFunction, List<AsterixFunction>>();
         GatherFunctionCalls gfc = new GatherFunctionCalls();
         expression.accept(gfc, null);
-        List<AsterixFunction> calls = gfc.getCalls();
-        return calls;
-    }
-
-    private void checkRecursivity(List<FunctionDecl> fdecls) throws AsterixException {
-        Map<AsterixFunction, DfsColor> color = new HashMap<AsterixFunction, DfsColor>();
-        Map<AsterixFunction, List<AsterixFunction>> arcs = new HashMap<AsterixFunction, List<AsterixFunction>>();
-        for (FunctionDecl fd : fdecls) {
-            GatherFunctionCalls gfc = new GatherFunctionCalls();
-            fd.getFuncBody().accept(gfc, null);
-            List<AsterixFunction> calls = gfc.getCalls();
-            arcs.put(fd.getIdent(), calls);
-            color.put(fd.getIdent(), DfsColor.WHITE);
-        }
-        for (AsterixFunction a : arcs.keySet()) {
-            if (color.get(a) == DfsColor.WHITE) {
-                checkRecursivityDfs(a, arcs, color);
-            }
-        }
-    }
-
-    private void checkRecursivityDfs(AsterixFunction a, Map<AsterixFunction, List<AsterixFunction>> arcs,
-            Map<AsterixFunction, DfsColor> color) throws AsterixException {
-        color.put(a, DfsColor.GRAY);
-        List<AsterixFunction> next = arcs.get(a);
-        if (next != null) {
-            for (AsterixFunction f : next) {
-                DfsColor dc = color.get(f);
-                if (dc == DfsColor.GRAY) {
-                    throw new AsterixException("Recursive function calls, created by calling " + f + " starting from "
-                            + a);
-                }
-                if (dc == DfsColor.WHITE) {
-                    checkRecursivityDfs(f, arcs, color);
-                }
-            }
-        }
-        color.put(a, DfsColor.BLACK);
-    }
-
-    private List<FunctionDecl> buildFunctionDeclList(Query q) {
-        ArrayList<FunctionDecl> fdecls = new ArrayList<FunctionDecl>();
-        for (Statement s : q.getPrologDeclList()) {
-            if (s.getKind() == Statement.Kind.FUNCTION_DECL) {
-                fdecls.add((FunctionDecl) s);
-            }
-        }
-        return fdecls;
+        return gfc.getCalls();
     }
 
     private static class GatherFunctionCalls implements IAqlExpressionVisitor<Void, Void> {
 
-        private final List<AsterixFunction> calls = new ArrayList<AsterixFunction>();
+        private final Set<FunctionSignature> calls = new HashSet<FunctionSignature>();
 
         public GatherFunctionCalls() {
         }
 
         @Override
         public Void visitCallExpr(CallExpr pf, Void arg) throws AsterixException {
-            calls.add(pf.getIdent());
+            calls.add(pf.getFunctionSignature());
             for (Expression e : pf.getExprList()) {
                 e.accept(this, arg);
             }
@@ -530,7 +501,7 @@
             return null;
         }
 
-        public List<AsterixFunction> getCalls() {
+        public Set<FunctionSignature> getCalls() {
             return calls;
         }
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/CloneAndSubstituteVariablesVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/CloneAndSubstituteVariablesVisitor.java
index 1db36a0..5742ac6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/CloneAndSubstituteVariablesVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/CloneAndSubstituteVariablesVisitor.java
@@ -63,7 +63,7 @@
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
 public class CloneAndSubstituteVariablesVisitor implements
         IAqlExpressionVisitor<Pair<IAqlExpression, List<VariableSubstitution>>, List<VariableSubstitution>> {
@@ -207,7 +207,7 @@
     public Pair<IAqlExpression, List<VariableSubstitution>> visitCallExpr(CallExpr pf, List<VariableSubstitution> arg)
             throws AsterixException {
         List<Expression> exprList = visitAndCloneExprList(pf.getExprList(), arg);
-        CallExpr f = new CallExpr(pf.getIdent(), exprList);
+        CallExpr f = new CallExpr(pf.getFunctionSignature(), exprList);
         return new Pair<IAqlExpression, List<VariableSubstitution>>(f, arg);
     }
 
@@ -224,7 +224,7 @@
         }
 
         Pair<IAqlExpression, List<VariableSubstitution>> p1 = fd.getFuncBody().accept(this, arg);
-        FunctionDecl newF = new FunctionDecl(fd.getIdent(), newList, (Expression) p1.first);
+        FunctionDecl newF = new FunctionDecl(fd.getSignature(), newList, (Expression) p1.first);
         return new Pair<IAqlExpression, List<VariableSubstitution>>(newF, arg);
     }
 
@@ -308,7 +308,6 @@
         Query newQ = new Query();
         Pair<IAqlExpression, List<VariableSubstitution>> p1 = q.getBody().accept(this, arg);
         newQ.setBody((Expression) p1.first);
-        newQ.setPrologDeclList(q.getPrologDeclList());
         return new Pair<IAqlExpression, List<VariableSubstitution>>(newQ, p1.second);
     }
 
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/InlineUdfsVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/InlineUdfsVisitor.java
index f0b2da6..f178d88 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/InlineUdfsVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/InlineUdfsVisitor.java
@@ -6,8 +6,8 @@
 
 import edu.uci.ics.asterix.aql.base.Clause;
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.IAqlExpression;
 import edu.uci.ics.asterix.aql.base.Expression.Kind;
+import edu.uci.ics.asterix.aql.base.IAqlExpression;
 import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
 import edu.uci.ics.asterix.aql.expression.CallExpr;
 import edu.uci.ics.asterix.aql.expression.ControlFeedStatement;
@@ -64,8 +64,8 @@
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
 public class InlineUdfsVisitor implements IAqlExpressionVisitor<Boolean, List<FunctionDecl>> {
 
@@ -104,12 +104,20 @@
     public Boolean visitRecordConstructor(RecordConstructor rc, List<FunctionDecl> arg) throws AsterixException {
         boolean changed = false;
         for (FieldBinding b : rc.getFbList()) {
-            if (b.getLeftExpr().accept(this, arg)) {
+        	Pair<Boolean, Expression> leftExprInlined = inlineUdfsInExpr(b.getLeftExpr(), arg);
+        	b.setLeftExpr(leftExprInlined.second);
+        	changed = changed | leftExprInlined.first;
+        	Pair<Boolean, Expression> rightExprInlined = inlineUdfsInExpr(b.getRightExpr(), arg);
+        	b.setRightExpr(rightExprInlined.second);
+        	changed = changed | rightExprInlined.first;
+        	
+        	/*
+        	if (b.getLeftExpr().accept(this, arg)) {
                 changed = true;
             }
             if (b.getRightExpr().accept(this, arg)) {
                 changed = true;
-            }
+            }*/
         }
         return changed;
     }
@@ -286,7 +294,7 @@
             return new Pair<Boolean, Expression>(r, expr);
         } else {
             CallExpr f = (CallExpr) expr;
-            FunctionDecl implem = findFuncDeclaration(f.getIdent(), arg);
+            FunctionDecl implem = findFuncDeclaration(f.getFunctionSignature(), arg);
             if (implem == null) {
                 boolean r = expr.accept(this, arg);
                 return new Pair<Boolean, Expression>(r, expr);
@@ -337,9 +345,9 @@
         return new Pair<Boolean, ArrayList<Expression>>(changed, newList);
     }
 
-    private static FunctionDecl findFuncDeclaration(AsterixFunction fid, List<FunctionDecl> sequence) {
+    private static FunctionDecl findFuncDeclaration(FunctionSignature fid, List<FunctionDecl> sequence) {
         for (FunctionDecl f : sequence) {
-            if (f.getIdent().equals(fid)) {
+            if (f.getSignature().equals(fid)) {
                 return f;
             }
         }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
index d246a92..e3f3641 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
@@ -1,5 +1,3 @@
-package edu.uci.ics.asterix.aql.util;
-
 /*
  * Copyright 2009-2011 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,25 +12,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+package edu.uci.ics.asterix.aql.util;
+
 import java.io.StringReader;
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.FunctionDecl;
-import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.VarIdentifier;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.functions.AsterixFunction;
-import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
 
@@ -44,7 +38,8 @@
         List<VarIdentifier> varIdentifiers = new ArrayList<VarIdentifier>();
 
         StringBuilder builder = new StringBuilder();
-        builder.append(" declare function " + function.getFunctionName());
+        builder.append(" use dataverse " + function.getDataverseName() + ";");
+        builder.append(" declare function " + function.getName().split("@")[0]);
         builder.append("(");
         for (String param : params) {
             VarIdentifier varId = new VarIdentifier(param);
@@ -52,21 +47,26 @@
             builder.append(param);
             builder.append(",");
         }
-        builder.delete(builder.length() - 1, builder.length());
+        if (params.size() > 0) {
+            builder.delete(builder.length() - 1, builder.length());
+        }
         builder.append(")");
         builder.append("{");
+        builder.append("\n");
         builder.append(functionBody);
+        builder.append("\n");
         builder.append("}");
+
         AQLParser parser = new AQLParser(new StringReader(new String(builder)));
 
-        Query query = null;
+        List<Statement> statements = null;
         try {
-            query = (Query) parser.Statement();
+            statements = parser.Statement();
         } catch (ParseException pe) {
             throw new AsterixException(pe);
         }
 
-        FunctionDecl decl = (FunctionDecl) query.getPrologDeclList().get(0);
+        FunctionDecl decl = (FunctionDecl) statements.get(1);
         return decl;
     }
 
@@ -74,24 +74,4 @@
         return AsterixBuiltinFunctions.getAsterixFunctionInfo(fi);
     }
 
-    public static IFunctionInfo getFunctionInfo(MetadataTransactionContext mdTxnCtx, String dataverseName,
-            AsterixFunction asterixFunction) throws MetadataException {
-        FunctionIdentifier fid = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-                asterixFunction.getFunctionName(), asterixFunction.getArity(), true);
-        IFunctionInfo finfo = AsterixBuiltinFunctions.getAsterixFunctionInfo(fid);
-        if (fid == null) {
-            fid = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, asterixFunction.getFunctionName(),
-                    asterixFunction.getArity(), true);
-        }
-        if (fid == null) {
-            Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, dataverseName, asterixFunction
-                    .getFunctionName(), asterixFunction.getArity());
-            if (function != null) {
-                finfo = new AsterixFunctionInfo(dataverseName, asterixFunction, false);
-                // todo: for external functions, we shall construct another kind of function info (that extends AsterixFunctionInfo)
-                // and has additional information.
-            }
-        }
-        return finfo; // could be null
-    }
 }
diff --git a/asterix-aql/src/main/javacc/AQL.jj b/asterix-aql/src/main/javacc/AQL.jj
index 1fa40b8..8e3e203 100644
--- a/asterix-aql/src/main/javacc/AQL.jj
+++ b/asterix-aql/src/main/javacc/AQL.jj
@@ -17,14 +17,17 @@
 
 import java.util.Map;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import edu.uci.ics.asterix.aql.literal.FloatLiteral;
 import edu.uci.ics.asterix.aql.literal.DoubleLiteral;
 import edu.uci.ics.asterix.aql.literal.FalseLiteral;
-import edu.uci.ics.asterix.aql.base.ILiteral;
+import edu.uci.ics.asterix.aql.base.Literal;
 import edu.uci.ics.asterix.aql.literal.IntegerLiteral;
+import edu.uci.ics.asterix.aql.literal.LongIntegerLiteral;
 import edu.uci.ics.asterix.aql.literal.NullLiteral;
 import edu.uci.ics.asterix.aql.literal.StringLiteral;
 import edu.uci.ics.asterix.aql.literal.TrueLiteral;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
 
 import edu.uci.ics.asterix.aql.base.*;
 import edu.uci.ics.asterix.aql.expression.*;
@@ -38,26 +41,22 @@
 import edu.uci.ics.asterix.common.annotations.*;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IndexedNLJoinExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+
+
 
 
 public class AQLParser extends ScopeChecker {
 
-/*
-    private void printHints(Token t) {
-       //System.err.println("token="+t.image+"\t special="+t.specialToken); 
-       if (t.specialToken == null) return;
-       Token tmp_t = t.specialToken;
-       while (tmp_t.specialToken != null) tmp_t = tmp_t.specialToken;    
-       while (tmp_t != null) {
-         System.out.println(tmp_t.image);
-         tmp_t = tmp_t.next;
-       }
-    }
-*/
-  
     // optimizer hints
     private static final String HASH_GROUP_BY_HINT = "hash";
     private static final String BROADCAST_JOIN_HINT = "bcast";
+    private static final String INDEXED_NESTED_LOOP_JOIN_HINT = "indexnl";
     private static final String INMEMORY_HINT = "inmem";
     private static final String VAL_FILE_HINT = "val-files";
     private static final String VAL_FILE_SAME_INDEX_HINT = "val-file-same-idx";
@@ -88,12 +87,17 @@
        return s.substring(1).trim();
     }
 
+    public AQLParser(String s){
+		this(new StringReader(s));
+		super.setInput(s);
+	}
+	
 	public static void main(String args[]) throws ParseException, TokenMgrError, IOException, FileNotFoundException, AsterixException {
 			File file = new File(args[0]);
 			Reader fis = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
 		    AQLParser parser = new AQLParser(fis);
-		    Statement st = parser.Statement();
-		    st.accept(new AQLPrintVisitor(), 0);
+		    List<Statement> st = parser.Statement();
+		    //st.accept(new AQLPrintVisitor(), 0);
 	}
 
 
@@ -102,11 +106,11 @@
 PARSER_END(AQLParser)
 
 
-Statement Statement() throws ParseException:
+List<Statement> Statement() throws ParseException:
 {
-  Query query = null;
   scopeStack.push(RootScopeFactory.createRootScope(this));
   List<Statement> decls = new ArrayList<Statement>();
+  Query query=null;
 }
 {
     (
@@ -186,6 +190,10 @@
           	{
             		decls.add(DataverseDropStatement());
           	}
+          	| "function"
+          	{
+            		decls.add(FunctionDropStatement());
+          	}
         	)
           | "write" {
                        decls.add(WriteStatement());
@@ -202,66 +210,78 @@
           | "update" {
 	  		decls.add(UpdateStatement());		
 	  	    } 
-	  	  | "begin" "feed"  <IDENTIFIER> {
-	  	    Identifier datasetName = new Identifier(token.image); 
-	  	    decls.add(new BeginFeedStatement(datasetName, getVarCounter()));
+	  	  | "begin" "feed"  
+	  	      {
+                Pair<Identifier,Identifier> nameComponents = getDotSeparatedPair();
+                decls.add(new BeginFeedStatement(nameComponents.first, nameComponents.second, getVarCounter()));
+	  	      } ";"
+	  	      
+	  	  | "suspend" "feed"  
+	  	  	 {
+                decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.SUSPEND));
+             } ";"
+	  	   | "resume" "feed"   {
+                decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.RESUME));
 	  	   } ";"
-	  	  | "suspend" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.SUSPEND, datasetName));
-	  	   } ";"
-	  	   | "resume" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.RESUME, datasetName));
-	  	   } ";"
-	  	   | "end" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.END, datasetName));
+	  	   | "end" "feed"   {
+	  	        decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.END));
 	  	   } ";" 
-	  	   | "alter" "feed" <IDENTIFIER> {
-             datasetName = new Identifier(token.image);
-             decls.add(AlterFeedDeclaration(datasetName));
-           }             
-                                                     
-        )*
-        (query = Query())?
+	  	   | "alter" "feed"  {
+      	        decls.add(AlterFeedDeclaration());
+           } ";"
+           
+           | (query = Query()) {
+               decls.add(query);
+           }
+           )*
+          //  (query = Query())?
       )
 
       <EOF>
     )
     {
-      if (query == null) {
-        query = new Query(true);
-      }
-      query.setPrologDeclList(decls);
-    
-      return query;
+     return decls;  
     }
 }
 
 InsertStatement InsertStatement() throws ParseException:
 {
+	Identifier dataverseName;
 	Identifier datasetName;
+	Pair<Identifier,Identifier> nameComponents = null;
 	Query query;
 }
 {
-   "into" <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
-     		<LEFTPAREN> query = Query() <RIGHTPAREN> ";"
-   {return new InsertStatement(datasetName, query,  getVarCounter());}
+   "into" <DATASET>
+   
+   {
+    nameComponents = getDotSeparatedPair();
+    dataverseName = nameComponents.first;
+    datasetName = nameComponents.second;
+   }
+    
+    query = Query() (";")?
+   {return new InsertStatement(dataverseName, datasetName, query,  getVarCounter());}
 }
 
 DeleteStatement DeleteStatement() throws ParseException:
 {
 	VariableExpr var = null;
+    Identifier dataverseName;
     Identifier datasetName = null;
 	Expression condition = null;
 	Clause dieClause = null;
+	Pair<Identifier, Identifier> nameComponents;
 }
 {
    var = Variable() { getCurrentScope().addNewVarSymbolToScope(var.getVar());  }
-	    "from" <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
-	    ("where" condition = Expression())?  (dieClause = DieClause())? ";"
-   {return new DeleteStatement(var, datasetName, condition,  dieClause, getVarCounter()); }
+   "from" 
+   <DATASET> 
+   { 
+	  nameComponents  = getDotSeparatedPair();
+   }
+   ("where" condition = Expression())?  (dieClause = DieClause())? (";")?
+   {return new DeleteStatement(var, nameComponents.first, nameComponents.second, condition,  dieClause, getVarCounter()); }
 }
 
 UpdateStatement UpdateStatement() throws ParseException:
@@ -321,10 +341,10 @@
 {
   Identifier nodeName = null;
   String fileName = null;
-  Identifier datasetName = null;
   Statement stmt = null;
   Query query;
   String writerClass = null;
+  Pair<Identifier,Identifier> nameComponents = null;
 }
 {
   (( "output" "to" 
@@ -336,10 +356,15 @@
          } )
     |
    ( "into" 
-     <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
+     <DATASET> 
+     
+      {
+       nameComponents = getDotSeparatedPair();
+      }
+     
      <LEFTPAREN> query = Query() <RIGHTPAREN>
      {
-        stmt = new WriteFromQueryResultStatement(datasetName, query, getVarCounter());
+        stmt = new WriteFromQueryResultStatement(nameComponents.first, nameComponents.second, query, getVarCounter());
      } ))  
         
     ";"
@@ -351,6 +376,7 @@
 CreateIndexStatement CreateIndexStatement() throws ParseException:
 {
   CreateIndexStatement cis = new CreateIndexStatement();
+  Pair<Identifier,Identifier> nameComponents = null;
 }
 {
   <IDENTIFIER> { cis.setIndexName(new Identifier(token.image)); }
@@ -361,17 +387,41 @@
     }
   )?
   "on"  
-  <IDENTIFIER> { cis.setDatasetName(new Identifier(token.image)); }
+  
+   {
+   nameComponents = getDotSeparatedPair();
+   cis.setDataverseName(nameComponents.first);
+   cis.setDatasetName(nameComponents.second);
+   }
+  
   <LEFTPAREN>
   	( <IDENTIFIER> { cis.addFieldExpr(token.image); } )
   	("," <IDENTIFIER> { cis.addFieldExpr(token.image); })*
   <RIGHTPAREN>
     ("type"
-  		("btree" { cis.setIndexType(IndexType.BTREE); }
-  		| "keyword" { cis.setIndexType(IndexType.KEYWORD); }
-  		| "qgram" { cis.setIndexType(IndexType.QGRAM); } 
-  		| "rtree" { cis.setIndexType(IndexType.RTREE); }   		  		  
-		)  
+  		("btree" { cis.setIndexType(IndexType.BTREE); }  		
+  		| "rtree" { cis.setIndexType(IndexType.RTREE); }
+  		| "keyword" { cis.setIndexType(IndexType.WORD_INVIX); }
+  		| "fuzzy keyword" { cis.setIndexType(IndexType.FUZZY_WORD_INVIX); }
+  		| "ngram"
+  		  <LEFTPAREN>
+  		  (<INTEGER_LITERAL>
+  		    {
+  		      cis.setIndexType(IndexType.NGRAM_INVIX);
+  		      cis.setGramLength(Integer.valueOf(token.image));
+  		    }
+  		  )
+  		  <RIGHTPAREN>
+  		| "fuzzy ngram"
+  		  <LEFTPAREN>
+  		  (<INTEGER_LITERAL>
+  		    {
+  		      cis.setIndexType(IndexType.FUZZY_NGRAM_INVIX);
+  		      cis.setGramLength(Integer.valueOf(token.image));
+  		    }
+  		  )
+  		  <RIGHTPAREN>
+		)
   	";"  	
   	| ";"
     )
@@ -385,23 +435,28 @@
   Identifier dvName = null;  
 }
 {
-  "dataverse" <IDENTIFIER> { dvName = new Identifier(token.image); }
+  "dataverse" <IDENTIFIER> { defaultDataverse = token.image;}
   ";"
   {
-    return new DataverseDecl(dvName);
+    return new DataverseDecl(new Identifier(defaultDataverse));
   }
 }
 
 DropStatement DropStatement() throws ParseException :
 {
+  Identifier dataverseName = null;
   Identifier datasetName = null;
   boolean ifExists = false;
+  Pair<Identifier,Identifier> nameComponents=null;
 }
 {
-  < IDENTIFIER >
-  {
-    datasetName = new Identifier(token.image);
-  }
+   {
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+   
+   
   (
     "if exists"
     {
@@ -409,25 +464,27 @@
     }
   )? ";"
   {
-    return new DropStatement(datasetName, ifExists);
+    return new DropStatement(dataverseName, datasetName, ifExists);
   }
 }
 
 IndexDropStatement IndexDropStatement() throws ParseException :
 {
+  Identifier dataverseName = null;
   Identifier datasetName = null;
   Identifier indexName = null;
   boolean ifExists = false;
+  Triple<Identifier,Identifier,Identifier> nameComponents=null;
 }
 {
-  < IDENTIFIER >
+  
   {
-    datasetName = new Identifier(token.image);
-  }
-  "." < IDENTIFIER >
-  {
-    indexName = new Identifier(token.image);
-  }
+   nameComponents = getDotSeparatedTriple();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   indexName = nameComponents.third;
+   }
+  
   (
     "if exists"
     {
@@ -435,7 +492,7 @@
     }
   )? ";"
   {
-    return new IndexDropStatement(datasetName, indexName, ifExists);
+    return new IndexDropStatement(dataverseName, datasetName, indexName, ifExists);
   }
 }
 
@@ -462,13 +519,16 @@
 
 TypeDropStatement TypeDropStatement() throws ParseException :
 {
+  Identifier dataverseName = null;
   Identifier typeName = null;
   boolean ifExists = false;
+  Pair<Identifier,Identifier> nameComponents;
 }
 {
-  < IDENTIFIER >
   {
-    typeName = new Identifier(token.image);
+    nameComponents = getDotSeparatedPair();
+    dataverseName = nameComponents.first == null ? new Identifier(defaultDataverse) : nameComponents.first;
+    typeName = nameComponents.second;
   }
   (
     "if exists"
@@ -477,7 +537,7 @@
     }
   )? ";"
   {
-    return new TypeDropStatement(typeName, ifExists);
+    return new TypeDropStatement(dataverseName, typeName, ifExists);
   }
 }
 
@@ -531,23 +591,67 @@
   }
 }
 
-LoadFromFileStatement LoadStatement() throws ParseException:
+
+FunctionDropStatement FunctionDropStatement() throws ParseException :
 {
-  Identifier datasetName = null;
-  boolean alreadySorted = false;
-  String adapterClassname;
-  Map<String,String> properties;
+  String dataverse;
+  String functionName;
+  int arity=0;
+  boolean ifExists = false;
+  Pair<Identifier, Identifier> nameComponents=null;
 }
 {
-   <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
- 
-   "using"
-
-    <STRING_LITERAL>
+  {
+     nameComponents = getDotSeparatedPair();
+     dataverse = nameComponents.first != null ? nameComponents.first.getValue() : defaultDataverse;
+     functionName = nameComponents.second.getValue(); 
+  }
+  
+   "@"
+  <INTEGER_LITERAL> 
+  {  
+     Token t= getToken(0);
+	 arity = new Integer(t.image);
+  	 if( arity < 0 && arity != FunctionIdentifier.VARARGS){
+  	 	throw new ParseException(" invalid arity:" + arity);
+  	 } 
+  }
+  
+  (
+    "if exists"
     {
-      adapterClassname = removeQuotesAndEscapes(token.image);
+      ifExists = true;
     }
+  )? ";"
+  {
+    return new FunctionDropStatement(new FunctionSignature(dataverse, functionName, arity), ifExists);
+  }
+}
 
+
+LoadFromFileStatement LoadStatement() throws ParseException:
+{
+  Identifier dataverseName = null;
+  Identifier datasetName = null;
+  boolean alreadySorted = false;
+  String adapterName;
+  Map<String,String> properties;
+  Pair<Identifier,Identifier> nameComponents = null;
+}
+{
+   <DATASET> 
+   {
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+   
+   "using"
+  
+    {
+    	adapterName = getAdapterName();
+    }
+   
     {
       properties = getConfiguration();
     }
@@ -558,25 +662,53 @@
         
   ";"
   {
-     return new LoadFromFileStatement(datasetName, adapterClassname, properties, alreadySorted);
+     return new LoadFromFileStatement(dataverseName, datasetName, adapterName, properties, alreadySorted);
   }   
 }
 
 
+String getAdapterName() throws ParseException :
+{
+	String adapterName = null;
+}
+{
+    ( 
+      <IDENTIFIER> {
+     	adapterName = (new Identifier(token.image)).getValue();; 
+      }
+      | 
+      <STRING_LITERAL>
+      {
+        adapterName = removeQuotesAndEscapes(token.image);
+      }
+    )
+    {
+	return adapterName;
+	}
+}
+
 
 DatasetDecl DatasetDeclaration(DatasetType datasetType) throws ParseException :
 {
   DatasetDecl dd = null;
   Identifier datasetName = null;
+  Identifier dataverseName = null;
+  Identifier itemDataverseName = null;
   Identifier itemTypeName = null;
+  String nameComponentFirst = null;
+  String nameComponentSecond = null;
   boolean ifNotExists = false;
-  IDatasetDetailsDecl idd = null;
+  IDatasetDetailsDecl datasetDetails = null;
+  Pair<Identifier,Identifier> nameComponents = null;
+  Map<String,String> hints = new HashMap<String,String>();	
 }
 {
-  < IDENTIFIER >
   {
-    datasetName = new Identifier(token.image);
-  }
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+    
   (
     "if not exists"
     {
@@ -584,59 +716,60 @@
     }
   )?
   (
-  	< LEFTPAREN > < IDENTIFIER >
+  	< LEFTPAREN > <IDENTIFIER>
   	{
     	itemTypeName = new Identifier(token.image);
   	}
   	< RIGHTPAREN >
-  )?
+  )
   {
   	  if(datasetType == DatasetType.INTERNAL) {
-      	idd = InternalDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd, ifNotExists);
+      	datasetDetails = InternalDatasetDeclaration();
       }
       else if(datasetType == DatasetType.EXTERNAL) {
-      	idd = ExternalDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd,ifNotExists);
+      	datasetDetails = ExternalDatasetDeclaration();
       }
       else if(datasetType == DatasetType.FEED) {
-      	idd = FeedDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd,ifNotExists);
+      	datasetDetails = FeedDatasetDeclaration();
       }
-      dd.setDatasetType(datasetType);
   }
+  
+  (
+  "hints"
   {
-    return dd;
+      initProperties(hints);
+  }
+  )?
+   ";"
+ 
+  {
+   dd = new DatasetDecl(dataverseName, datasetName, itemTypeName, hints, datasetType, datasetDetails,ifNotExists);
+   return dd;
   }
 }
 
 InternalDetailsDecl InternalDatasetDeclaration() throws ParseException :
 {
     InternalDetailsDecl idd = null;
+    List<String> primaryKeyFields = new ArrayList<String>();
+    Identifier nodeGroupName=null;
 }
 {
-  {
-    idd = new InternalDetailsDecl();
-  }
-  "partitioned" "by" "key"
-  < IDENTIFIER >
-  {
-    	 idd.addPartitioningExpr(token.image);
-  }
   (
-    "," < IDENTIFIER >
     {
-      	idd.addPartitioningExpr(token.image);
+  	  primaryKeyFields = getPrimaryKeyFields();
     }
-  )*
+  )
+  
   (
   "on" < IDENTIFIER >
     {
-    	idd.setNodegroupName(new Identifier(token.image));
+        nodeGroupName = new Identifier(token.image);
     }
   )?
-  ";"
+  
   {
+    idd = new InternalDetailsDecl(nodeGroupName, primaryKeyFields);
     return idd;
   }
 }
@@ -644,7 +777,7 @@
 ExternalDetailsDecl ExternalDatasetDeclaration() throws ParseException :
 {
   ExternalDetailsDecl edd = null;
-  String adapterClassname = null;
+  String adapterName = null;
   Map < String, String > properties;
 }
 {
@@ -653,10 +786,8 @@
   }
  
     "using"
-    
-     <STRING_LITERAL>
     {
-      adapterClassname = removeQuotesAndEscapes(token.image);
+    	adapterName = getAdapterName();
     }
 
     {
@@ -665,10 +796,9 @@
 
     {
     	  edd = new ExternalDetailsDecl();
-		  edd.setAdapter(adapterClassname);
+		  edd.setAdapter(adapterName);
    		  edd.setProperties(properties);
     } 
-  ";"
  
   {
     return edd;
@@ -678,19 +808,20 @@
 FeedDetailsDecl FeedDatasetDeclaration() throws ParseException :
 {
     FeedDetailsDecl fdd = null;
-    String adapterClassname = null;
+    String adapterName = null;
     Map < String, String > properties;
+	Pair<Identifier,Identifier> nameComponents;
+	List<String> primaryKeyFields = new ArrayList<String>();
+    Identifier nodeGroupName=null;
+    FunctionSignature appliedFunction=null;
+	String dataverse;
+	String functionName;
+	int arity;
 }
 {
-  {
-    fdd = new FeedDetailsDecl();
-  }
-  
    "using"
-   
-    <STRING_LITERAL>
     {
-      adapterClassname = removeQuotesAndEscapes(token.image);
+    	adapterName = getAdapterName();
     }
 
     {
@@ -698,57 +829,103 @@
     }
   
   ("apply" "function" 
-  < IDENTIFIER >
   {
-      fdd.setFunctionIdentifier(token.image);
+  nameComponents = getDotSeparatedPair();
+  dataverse = nameComponents.first != null ? nameComponents.first.getValue() : defaultDataverse;
+  functionName = nameComponents.second.getValue();
   }
+  ("@" <INTEGER_LITERAL> 
+     {
+        arity = Integer.parseInt(token.image);
+     }
+  )
+  
+  {
+    appliedFunction = new FunctionSignature(dataverse, functionName, arity);
+  }   
   )?
   
-  "partitioned" "by" "key"
-  < IDENTIFIER >
-  {
-    	 fdd.addPartitioningExpr(token.image);
-  }
   (
-    "," < IDENTIFIER >
     {
-      	fdd.addPartitioningExpr(token.image);
+  	  primaryKeyFields  = getPrimaryKeyFields();
     }
-  )*
+  )
+  
   (
   "on" < IDENTIFIER >
   {
-    	fdd.setNodegroupName(new Identifier(token.image));
+    	nodeGroupName = new Identifier(token.image);
   }
   )?
-  ";"
+  
   {
-    fdd.setAdapterClassname(adapterClassname);
-    fdd.setProperties(properties);
+    fdd = new FeedDetailsDecl(adapterName, properties, appliedFunction, nodeGroupName, primaryKeyFields);
     return fdd;
   }
 }
 
-ControlFeedStatement AlterFeedDeclaration(Identifier datasetName) throws ParseException :
+List<String> getPrimaryKeyFields()  throws ParseException :
 {
-    String name = null;
-    String value = null;
+	List<String> primaryKeyFields = new ArrayList<String>();
+}
+{
+
+  "primary" "key"
+  < IDENTIFIER >
+  {
+    	 primaryKeyFields.add(token.image);
+  }
+  (
+    "," < IDENTIFIER >
+    {
+    	 primaryKeyFields.add(token.image);
+    }
+  )*
+  {
+   	return primaryKeyFields;
+  }
+  
+}
+
+
+
+
+
+ControlFeedStatement ControlFeedDeclaration(ControlFeedStatement.OperationType operationType) throws ParseException :
+{
+  Pair<Identifier,Identifier> nameComponents = null;
+}
+{
+    {
+    nameComponents = getDotSeparatedPair();
+    return new ControlFeedStatement(operationType, nameComponents.first, nameComponents.second);
+    }
+}
+
+
+ControlFeedStatement AlterFeedDeclaration() throws ParseException :
+{
+    Pair<Identifier,Identifier> nameComponents = null;
     Map < String, String > configuration = new HashMap < String, String > ();
 }
 {
+   {
+    nameComponents = getDotSeparatedPair();
+   }
+
    "set"
    { 
    configuration = getConfiguration();
    }
-  ";"
+  
   {
-    return new ControlFeedStatement(ControlFeedStatement.OperationType.ALTER, datasetName, configuration);
+    return new ControlFeedStatement(ControlFeedStatement.OperationType.ALTER, nameComponents.first, nameComponents.second, configuration);
   }
 }
 
 Map<String,String> getConfiguration()  throws ParseException :
 {
-	Map<String,String> configuration = new HashMap<String,String>();
+	Map<String,String> configuration = new LinkedHashMap<String,String>();
 	String key;
 	String value;
 }
@@ -797,6 +974,75 @@
      }
 }
 
+void initProperties(Map<String,String> properties)  throws ParseException :
+{
+	String key;
+	String value;
+}
+{
+    (
+      <LEFTPAREN>
+        (
+          <IDENTIFIER>
+          {
+            key = (new Identifier(token.image)).getValue();
+          }
+          "=" 
+          (
+            (<STRING_LITERAL>
+             {
+              value = removeQuotesAndEscapes(token.image);
+             }
+            ) |
+            (<INTEGER_LITERAL>
+             {
+             try{
+              value = "" + Long.valueOf(token.image);
+              } catch (NumberFormatException nfe){
+                  throw new ParseException("inapproriate value: " + token.image); 
+              }
+             } 
+            )
+          )
+        {
+          properties.put(key.toUpperCase(), value);
+        }
+       ( 
+        "," 
+        (
+          <IDENTIFIER>
+          {
+            key = (new Identifier(token.image)).getValue();
+          }
+          "=" 
+          (
+           (<STRING_LITERAL>
+            {
+              value = removeQuotesAndEscapes(token.image);
+            }
+           ) |
+           (<INTEGER_LITERAL>
+            {
+              try{
+                value = "" + Long.valueOf(token.image);
+              } catch (NumberFormatException nfe){
+              	throw new ParseException("inapproriate value: " + token.image); 
+              }
+            } 
+           )
+          ) 
+        )
+        {
+          properties.put(key.toUpperCase(), value);
+        }
+        
+       )*
+      )
+       <RIGHTPAREN>
+    )?
+}
+
+
 
 NodegroupDecl NodegroupDeclaration() throws ParseException :
 {
@@ -834,15 +1080,19 @@
 
 TypeDecl TypeDeclaration(boolean dgen, String hint) throws ParseException:
 {
+  Identifier dataverse;
   Identifier ident;
   TypeExpression typeExpr;
   boolean ifNotExists = false;
+  Pair<Identifier,Identifier> nameComponents=null;	
 }
 {
-  <IDENTIFIER>
   {
-    ident = new Identifier(token.image.toString());
+    nameComponents = getDotSeparatedPair();
+    dataverse = nameComponents.first;
+    ident = nameComponents.second; 
   }
+  
   (
     "if not exists"
     {
@@ -851,6 +1101,7 @@
   )?
   "as"
   ( typeExpr = TypeExpr() )
+  (";")?
   {
     long numValues = -1;
     String filename = null;
@@ -863,7 +1114,7 @@
       numValues = Long.parseLong(splits[2]);
     }  
     TypeDataGen tddg = new TypeDataGen(dgen, filename, numValues);
-    return new TypeDecl(ident, typeExpr, tddg, ifNotExists);
+    return new TypeDecl(dataverse, ident, typeExpr, tddg, ifNotExists);
   }
 }
 
@@ -989,12 +1240,12 @@
 TypeReferenceExpression TypeReference() throws ParseException:
 {}
 {
-  <IDENTIFIER>
-  	{
-	  Token t = getToken(0);
-	  Identifier id = new Identifier(t.toString());
-	  return new TypeReferenceExpression(id);
-	}      
+ <IDENTIFIER>
+ {
+     Token t = getToken(0);
+     Identifier id = new Identifier(t.toString());
+     return new TypeReferenceExpression(id);
+ }
 }
 
 OrderedListTypeDefinition OrderedListTypeDef() throws ParseException:
@@ -1024,11 +1275,72 @@
   }
 }
 
+Pair<Identifier,Identifier> getDotSeparatedPair() throws ParseException:
+{
+ Identifier first = null;
+ Identifier second = null;
+}
+{
+  < IDENTIFIER >
+  {
+    first = new Identifier(token.image);
+  } 
+  ("." <IDENTIFIER>
+  {
+    second = new Identifier(token.image);
+  }
+  )?
+  
+  {
+   if(second == null){
+   	second = first;
+   	first = null;
+   } 
+   
+   return new Pair<Identifier,Identifier>(first,second);
+  }  
+}  
+  
+Triple<Identifier,Identifier,Identifier> getDotSeparatedTriple() throws ParseException:
+{
+ Identifier first = null;
+ Identifier second = null;
+ Identifier third = null;
+}
+{
+  < IDENTIFIER >
+  {
+    first = new Identifier(token.image);
+  } 
+  "." <IDENTIFIER>
+  {
+    second = new Identifier(token.image);
+  }
+  (
+  "." <IDENTIFIER>
+  {
+    third = new Identifier(token.image);
+  }
+  )?
+  
+  {
+   if(third == null){
+   	third  = second;
+   	second = first;
+   	first = null;
+   } 
+   
+   return new Triple<Identifier,Identifier,Identifier>(first,second,third);
+  }  
+}  
+
+
+  
 
 FunctionDecl FunctionDeclaration() throws ParseException:
 {
-  FunctionDecl func = new FunctionDecl();
-  AsterixFunction ident;
+  FunctionDecl funcDecl;
+  FunctionSignature signature;
   String functionName;
   int arity = 0;
   List<VarIdentifier> paramList = new ArrayList<VarIdentifier>();
@@ -1061,33 +1373,34 @@
     })*)? <RIGHTPAREN> "{" funcBody = Expression() "}"
 
     {
-      ident = new AsterixFunction(functionName,arity);
-      getCurrentScope().addFunctionDescriptor(ident, false);
-      func.setIdent(ident);
-      func.setFuncBody(funcBody);
-      func.setParamList(paramList);
-      return func;
+      signature = new FunctionSignature(defaultDataverse, functionName, arity);
+      getCurrentScope().addFunctionDescriptor(signature, false);
+      funcDecl = new FunctionDecl(signature, paramList, funcBody);
+      return funcDecl;
     }
 }
 
 CreateFunctionStatement FunctionCreation() throws ParseException:
 {
   CreateFunctionStatement cfs = null;
-  AsterixFunction ident;
+  FunctionSignature signature;
+  String dataverse;
   String functionName;
-  int arity = 0;
   boolean ifNotExists = false;
   List<VarIdentifier> paramList = new ArrayList<VarIdentifier>();
-  String funcBody;
+  String functionBody;
   VarIdentifier var = null;
   createNewScope();
+  Expression functionBodyExpr;
+  Token beginPos;
+  Token endPos;
+  Pair<Identifier,Identifier> nameComponents=null;
 }
 {
-
-    <IDENTIFIER>
-	{
-	  Token t = getToken(0);
-	  functionName= t.toString();
+    {
+      nameComponents = getDotSeparatedPair();
+   	  dataverse = nameComponents.first != null ? nameComponents.first.getValue() : defaultDataverse;
+   	  functionName= nameComponents.second.getValue();
 	}
 	
 	(
@@ -1103,7 +1416,6 @@
       var.setValue(getToken(0).toString());
       paramList.add(var);
       getCurrentScope().addNewVarSymbolToScope(var);
-      arity++;
     }
     ("," <VARIABLE>
     {
@@ -1111,16 +1423,20 @@
       var.setValue(getToken(0).toString());
       paramList.add(var);
       getCurrentScope().addNewVarSymbolToScope(var);
-      arity++;
-    })*)? <RIGHTPAREN>  "{" <STRING_LITERAL>
+    })*)? <RIGHTPAREN>  "{"
           {
-            funcBody = removeQuotesAndEscapes(token.image);
-          }
+          beginPos = getToken(0);
+          } 
+          functionBodyExpr = Expression() 
           "}"
+          {
+            endPos = getToken(0);
+            functionBody = extractFragment(beginPos.beginLine, beginPos.beginColumn, endPos.beginLine, endPos.beginColumn);
+          }
     {
-      ident = new AsterixFunction(functionName, arity);
-      getCurrentScope().addFunctionDescriptor(ident, false);
-      cfs = new CreateFunctionStatement(ident, paramList, funcBody, ifNotExists);
+      signature = new FunctionSignature(dataverse, functionName, paramList.size());
+      getCurrentScope().addFunctionDescriptor(signature, false);
+      cfs = new CreateFunctionStatement(signature, paramList, functionBody, ifNotExists);
       return cfs;
     }
 }
@@ -1134,11 +1450,13 @@
 }
 {
     expr = Expression()
-
+    (";")?
     {
       query.setBody(expr);
+      query.setVarCounter(getVarCounter());
       return query;
     }
+     
 }
 
 
@@ -1156,7 +1474,7 @@
     | expr = IfThenElse()
     | expr = FLWOGR()
     | expr = QuantifiedExpression()
-
+   
 
 )
 	{
@@ -1237,14 +1555,15 @@
   OperatorExpr op = null;
   Expression operand = null;
   boolean broadcast = false;
+  IExpressionAnnotation annotation = null;
 }
 {
     operand = AddExpr()
-    {
-      if (operand instanceof VariableExpr) {
-        String hint = getHint(token);
+    { 
+      if (operand instanceof VariableExpr) {        
+        String hint = getHint(token);        
         if (hint != null && hint.equals(BROADCAST_JOIN_HINT)) {
-          broadcast = true;       
+          broadcast = true;
         }
       }
     } 
@@ -1252,6 +1571,10 @@
     (
       LOOKAHEAD(2)( "<" | ">" | "<=" | ">=" | "=" | "!=" |"~=")
   	  {
+  	    String mhint = getHint(token);
+  	    if (mhint != null && mhint.equals(INDEXED_NESTED_LOOP_JOIN_HINT)) {
+          annotation = IndexedNLJoinExpressionAnnotation.INSTANCE;
+        }
   	    if (op == null) {
   	      op = new OperatorExpr();
   	      op.addOperand(operand, broadcast);
@@ -1264,18 +1587,21 @@
 	  
  	  operand = AddExpr()
 	  {
-         broadcast = false;
-	     if (operand instanceof VariableExpr) {
-           String hint = getHint(token);
+         broadcast = false;	     
+         if (operand instanceof VariableExpr) {
+           String hint = getHint(token);        
            if (hint != null && hint.equals(BROADCAST_JOIN_HINT)) {
              broadcast = true;
            }
-         } 
+         }
          op.addOperand(operand, broadcast);
       } 
     )?
  	
  	{
+ 	  if (annotation != null) {
+ 	    op.addHint(annotation);
+ 	  }
  	  return op==null? operand: op;
  	}
 }
@@ -1470,10 +1796,11 @@
 	{
 		if(expr.getKind() == Expression.Kind.LITERAL_EXPRESSION)
 		{
-			ILiteral lit = ((LiteralExpr)expr).getValue();
-			if(lit.getLiteralType() == ILiteral.Type.INTEGER) {
+			Literal lit = ((LiteralExpr)expr).getValue();
+			if(lit.getLiteralType() == Literal.Type.INTEGER || 
+			   lit.getLiteralType() == Literal.Type.LONG) {
 				idx = Integer.valueOf(lit.getStringValue());
-			}	
+			}
 			else {
 				throw new ParseException("Index should be an INTEGER");				
             }
@@ -1501,10 +1828,11 @@
   Expression expr = null;
 }
 {
-  //ILiteral | VariableRef | ListConstructor | RecordConstructor | FunctionCallExpr | ParenthesizedExpression
+  //Literal | VariableRef | ListConstructor | RecordConstructor | FunctionCallExpr | DatasetAccessExpression | ParenthesizedExpression
 	(
 	  expr =Literal() 
 	   | expr = FunctionCallExpr()
+	   | expr = DatasetAccessExpression()
 	   | expr =VariableRef() 
 	   
     {
@@ -1537,7 +1865,11 @@
  	 | <INTEGER_LITERAL>
     {
       t= getToken(0);
-	  lit.setValue(new IntegerLiteral(new Integer(t.image)));
+	  try {
+	      lit.setValue(new IntegerLiteral(new Integer(t.image)));
+	  } catch(NumberFormatException ex) {
+	      lit.setValue(new LongIntegerLiteral(new Long(t.image)));
+	  }
 	}
      | < FLOAT_LITERAL >
     {
@@ -1711,18 +2043,24 @@
     }
 }
 
+
 Expression FunctionCallExpr() throws ParseException:
 {
-  CallExpr pf = new CallExpr();
-  List<Expression > argList = new ArrayList<Expression >();
+  CallExpr callExpr;
+  List<Expression> argList = new ArrayList<Expression>();
   Expression tmp;
   int arity = 0;
-  Token funcName;
+  String funcName;
+  String dataverse;
+  String hint=null;
+  String id1=null;
+  String id2=null;
 }
-{
-    ( <IDENTIFIER> | <DATASET> )
+{  
+    
+    <IDENTIFIER> { dataverse = defaultDataverse; funcName = token.image;} ("." <IDENTIFIER> { dataverse = funcName; funcName = token.image;})?
     {
-		funcName = getToken(0);
+       hint = getHint(token);
     }
      <LEFTPAREN> (tmp = Expression()
      {
@@ -1731,19 +2069,47 @@
      } ("," tmp = Expression() { argList.add(tmp); arity++; })*)? <RIGHTPAREN>
 
      {
-       AsterixFunction fd = lookupFunctionSignature(funcName.toString(), arity);
-	     if(fd == null)
-	     {
-	        fd = new AsterixFunction(funcName.toString(), arity);
-//	     	notFoundFunctionList.add(fd);
-	     }
-//	     	throw new ParseException("can't find function "+ funcName.toString() + "@" + arity);
-       pf.setIdent(fd);
-       pf.setExprList(argList);
-       return pf;
+       FunctionSignature signature = lookupFunctionSignature(dataverse, funcName.toString(), arity);
+             if(signature == null)
+             {
+                signature = new FunctionSignature(dataverse, funcName.toString(), arity);
+             }
+       callExpr = new CallExpr(signature,argList);
+       if (hint != null && hint.startsWith(INDEXED_NESTED_LOOP_JOIN_HINT)) {
+          callExpr.addHint(IndexedNLJoinExpressionAnnotation.INSTANCE);
+        }
+       return callExpr;
      }
 }
 
+Expression DatasetAccessExpression() throws ParseException:
+{
+  CallExpr callExpr;
+  List<Expression> argList = new ArrayList<Expression>();
+  String funcName;
+  String dataverse;
+  LiteralExpr ds;
+  LiteralExpr dvds;
+  Expression nameArg;
+  int arity = 0;
+}
+{  
+    <DATASET> {dataverse = MetadataConstants.METADATA_DATAVERSE_NAME; funcName = getToken(0).toString();}
+    (
+    (<IDENTIFIER> {ds = new LiteralExpr(); ds.setValue( new StringLiteral(token.image) ); argList.add(ds); arity ++;} ("." <IDENTIFIER> { dvds = new LiteralExpr(); dvds.setValue(new StringLiteral(ds.getValue()+"."+token.image)); argList.remove(0); argList.add(dvds);})? ) |  
+    (<LEFTPAREN> nameArg = Expression() {argList.add(nameArg); arity ++;} ("," nameArg = Expression() { argList.add(nameArg); arity++; })* <RIGHTPAREN>)
+    )  
+     
+     {
+       FunctionSignature signature = lookupFunctionSignature(dataverse, funcName.toString(), arity);
+       if(signature == null)
+             {
+                signature = new FunctionSignature(dataverse, funcName.toString(), arity);
+             }
+       callExpr = new CallExpr(signature,argList);
+       return callExpr;
+     }
+}
 
 Expression ParenthesizedExpression() throws ParseException:
 {
@@ -1851,12 +2217,9 @@
 	extendCurrentScope();
 }
 {
-    "let" varExp = Variable()
+    "let" varExp = Variable() ":=" beExp = Expression()
     {
       getCurrentScope().addNewVarSymbolToScope(varExp.getVar());
-	}
-     ":=" beExp = Expression()
-    {
       lc.setVarExpr(varExp);
       lc.setBeExpr(beExp);
       return lc;
@@ -2203,6 +2566,7 @@
 	<IDENTIFIER : (<LETTER>)+ (<LETTER> | <DIGIT> | <SPECIALCHARS>)*>
 }
 
+
 <DEFAULT>
 TOKEN :
 {
diff --git a/asterix-common/pom.xml b/asterix-common/pom.xml
index a34460c..6356033 100644
--- a/asterix-common/pom.xml
+++ b/asterix-common/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-common</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 	<build>
 		<plugins>
 			<plugin>
@@ -15,8 +14,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 		</plugins>
@@ -25,22 +25,23 @@
 	<dependencies>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-algebricks-compiler</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.0</version>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-transactions</artifactId>
+			<version>0.0.4-SNAPSHOT</version>
+			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-common</artifactId>
+		</dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/annotations/RecordDataGenAnnotation.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/annotations/RecordDataGenAnnotation.java
index 8214b39..6b7a96b 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/annotations/RecordDataGenAnnotation.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/annotations/RecordDataGenAnnotation.java
@@ -1,6 +1,8 @@
 package edu.uci.ics.asterix.common.annotations;
 
-public class RecordDataGenAnnotation implements IRecordTypeAnnotation {
+import java.io.Serializable;
+
+public class RecordDataGenAnnotation implements IRecordTypeAnnotation, Serializable {
 
     private final IRecordFieldDataGen[] declaredFieldsDatagen;
     private final UndeclaredFieldsDataGen undeclaredFieldsDataGen;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfoImpl.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfoImpl.java
new file mode 100644
index 0000000..0f1de56
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfoImpl.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.common.api;
+
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
+import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+
+/*
+ * Acts as an holder class for IndexRegistryProvider, AsterixStorageManager
+ * instances that are accessed from the NCs. In addition an instance of ICCApplicationContext 
+ * is stored for access by the CC.
+ */
+public class AsterixAppContextInfoImpl implements IAsterixApplicationContextInfo {
+
+    private static AsterixAppContextInfoImpl INSTANCE;
+
+    private final ICCApplicationContext appCtx;
+
+    public static void initialize(ICCApplicationContext ccAppCtx) {
+        if (INSTANCE == null) {
+            INSTANCE = new AsterixAppContextInfoImpl(ccAppCtx);
+        }
+    }
+
+    private AsterixAppContextInfoImpl(ICCApplicationContext ccAppCtx) {
+        this.appCtx = ccAppCtx;
+    }
+
+    public static IAsterixApplicationContextInfo getInstance() {
+        return INSTANCE;
+    }
+
+    @Override
+    public IStorageManagerInterface getStorageManagerInterface() {
+        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+    }
+
+    @Override
+    public ICCApplicationContext getCCApplicationContext() {
+        return appCtx;
+    }
+
+    @Override
+    public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider() {
+        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/DatasetConfig.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/DatasetConfig.java
index aff5dd2..cbe96f7 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/DatasetConfig.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/DatasetConfig.java
@@ -38,10 +38,12 @@
     }
 
     public enum IndexType {
-        BTREE,
-        KEYWORD,
-        QGRAM,
-        RTREE
+        BTREE,        
+        RTREE,
+        WORD_INVIX,
+        NGRAM_INVIX,
+        FUZZY_WORD_INVIX,
+        FUZZY_NGRAM_INVIX
     }
 
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/GlobalConfig.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/GlobalConfig.java
index 201166e..1183b65 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/GlobalConfig.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/GlobalConfig.java
@@ -3,14 +3,13 @@
 import java.util.logging.Logger;
 
 public class GlobalConfig {
-
     public static final boolean DEBUG = true;
+
     public static final String ASTERIX_LOGGER_NAME = "edu.uci.ics.asterix";
+
     public static final Logger ASTERIX_LOGGER = Logger.getLogger(ASTERIX_LOGGER_NAME);
-    // public static Level ASTERIX_LOG_LEVEL = Level.FINEST;
 
     public static final String ASTERIX_LOGFILE_PATTERN = "%t/asterix.log";
-    // "%t/asterix%g.log";
 
     public static final String DEFAULT_CONFIG_FILE_NAME = "test.properties";
 
@@ -20,31 +19,41 @@
 
     public static final String WEB_SERVER_PORT_PROPERTY = "AsterixWebServerPort";
 
+    public static final String JSON_API_SERVER_PORT_PROPERTY = "AsterixJSONAPIServerPort";
+
     public static final String BUFFER_CACHE_PAGE_SIZE_PROPERTY = "BufferCachePageSize";
 
-    public static final String BUFFER_CACHE_SIZE_PROPERTY = "BufferCacheSize";
+    public static final String BUFFER_CACHE_NUM_PAGES_PROPERTY = "BufferCacheNumPages";
 
-    public static final int DEFAULT_BUFFER_CACHE_SIZE = 4096;
-
-    public static final String HYRACKS_APP_NAME = "asterix";
+    public static final int DEFAULT_BUFFER_CACHE_NUM_PAGES = 4096;
 
     public static final int DEFAULT_FRAME_SIZE = 32768;
 
     public static final String FRAME_SIZE_PROPERTY = "FrameSize";
 
     public static final float DEFAULT_BTREE_FILL_FACTOR = 1.00f;
+
     public static int DEFAULT_INPUT_DATA_COLUMN = 0;
 
-    // static {
-    // Handler h;
-    // try {
-    // h = new ConsoleHandler();
-    // h.setFormatter(new SysoutFormatter());
-    // } catch (Exception e) {
-    // h = new ConsoleHandler();
-    // }
-    // h.setLevel(ASTERIX_LOG_LEVEL);
-    // ASTERIX_LOGGER.addHandler(h);
-    // ASTERIX_LOGGER.setLevel(ASTERIX_LOG_LEVEL);
-    // }
+    public static int DEFAULT_INDEX_MEM_PAGE_SIZE = 32768;
+
+    public static int DEFAULT_INDEX_MEM_NUM_PAGES = 1000;
+
+    public static int getFrameSize() {
+        int frameSize = GlobalConfig.DEFAULT_FRAME_SIZE;
+        String frameSizeStr = System.getProperty(GlobalConfig.FRAME_SIZE_PROPERTY);
+        if (frameSizeStr != null) {
+            int fz = -1;
+            try {
+                fz = Integer.parseInt(frameSizeStr);
+            } catch (NumberFormatException nfe) {
+                GlobalConfig.ASTERIX_LOGGER.warning("Wrong frame size size argument. Picking default value ("
+                        + GlobalConfig.DEFAULT_FRAME_SIZE + ") instead.\n");
+            }
+            if (fz >= 0) {
+                frameSize = fz;
+            }
+        }
+        return frameSize;
+    }
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
index 0a125b4..271f216 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.common.config;
 
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig; 
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
 
 public class OptimizationConfUtil {
 
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java
new file mode 100644
index 0000000..5070938
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java
@@ -0,0 +1,219 @@
+package edu.uci.ics.asterix.common.context;
+
+import java.io.IOException;
+import java.util.logging.Level;
+
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMBTreeIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMInvertedIndexIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMRTreeIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTrackerFactory;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepository;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepositoryFactory;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.application.INCApplicationContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousScheduler;
+import edu.uci.ics.hyracks.storage.common.buffercache.BufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ClockPageReplacementStrategy;
+import edu.uci.ics.hyracks.storage.common.buffercache.DelayPageCleanerPolicy;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
+import edu.uci.ics.hyracks.storage.common.buffercache.IPageCleanerPolicy;
+import edu.uci.ics.hyracks.storage.common.buffercache.IPageReplacementStrategy;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepositoryFactory;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactoryProvider;
+
+public class AsterixAppRuntimeContext {
+    private static final int DEFAULT_BUFFER_CACHE_PAGE_SIZE = 32768;
+    private static final int DEFAULT_LIFECYCLEMANAGER_MEMORY_BUDGET = 1024 * 1024 * 1024; // 1GB
+    private static final int DEFAULT_MAX_OPEN_FILES = Integer.MAX_VALUE;
+    private final INCApplicationContext ncApplicationContext;
+
+    private IIndexLifecycleManager indexLifecycleManager;
+    private IFileMapManager fileMapManager;
+    private IBufferCache bufferCache;
+    private TransactionSubsystem txnSubsystem;
+
+    private ILSMMergePolicy mergePolicy;
+    private ILSMOperationTrackerFactory lsmBTreeOpTrackerFactory;
+    private ILSMOperationTrackerFactory lsmRTreeOpTrackerFactory;
+    private ILSMOperationTrackerFactory lsmInvertedIndexOpTrackerFactory;
+    private ILSMIOOperationScheduler lsmIOScheduler;
+    private PersistentLocalResourceRepository localResourceRepository;
+    private ResourceIdFactory resourceIdFactory;
+    private IIOManager ioManager;
+    private boolean isShuttingdown;
+
+    public AsterixAppRuntimeContext(INCApplicationContext ncApplicationContext) {
+        this.ncApplicationContext = ncApplicationContext;
+    }
+
+    public void initialize() throws IOException, ACIDException {
+        int pageSize = getBufferCachePageSize();
+        int numPages = getBufferCacheNumPages();
+
+        fileMapManager = new AsterixFileMapManager();
+        ICacheMemoryAllocator allocator = new HeapBufferAllocator();
+        IPageReplacementStrategy prs = new ClockPageReplacementStrategy();
+        ioManager = ncApplicationContext.getRootContext().getIOManager();
+        indexLifecycleManager = new IndexLifecycleManager(DEFAULT_LIFECYCLEMANAGER_MEMORY_BUDGET);
+        IAsterixAppRuntimeContextProvider asterixAppRuntimeContextProvider = new AsterixAppRuntimeContextProviderForRecovery(
+                this);
+        txnSubsystem = new TransactionSubsystem(ncApplicationContext.getNodeId(), asterixAppRuntimeContextProvider);
+        IPageCleanerPolicy pcp = new DelayPageCleanerPolicy(600000);
+        bufferCache = new BufferCache(ioManager, allocator, prs, pcp, fileMapManager, pageSize, numPages,
+                DEFAULT_MAX_OPEN_FILES);
+
+        lsmIOScheduler = SynchronousScheduler.INSTANCE;
+        mergePolicy = new ConstantMergePolicy(3, this);
+        lsmBTreeOpTrackerFactory = new IndexOperationTrackerFactory(LSMBTreeIOOperationCallbackFactory.INSTANCE);
+        lsmRTreeOpTrackerFactory = new IndexOperationTrackerFactory(LSMRTreeIOOperationCallbackFactory.INSTANCE);
+        lsmInvertedIndexOpTrackerFactory = new IndexOperationTrackerFactory(
+                LSMInvertedIndexIOOperationCallbackFactory.INSTANCE);
+
+        ILocalResourceRepositoryFactory persistentLocalResourceRepositoryFactory = new PersistentLocalResourceRepositoryFactory(
+                ioManager);
+        localResourceRepository = (PersistentLocalResourceRepository) persistentLocalResourceRepositoryFactory
+                .createRepository();
+        resourceIdFactory = (new ResourceIdFactoryProvider(localResourceRepository)).createResourceIdFactory();
+        isShuttingdown = false;
+    }
+
+    public boolean isShuttingdown() {
+        return isShuttingdown;
+    }
+
+    public void setShuttingdown(boolean isShuttingdown) {
+        this.isShuttingdown = isShuttingdown;
+    }
+
+    private int getBufferCachePageSize() {
+        int pageSize = DEFAULT_BUFFER_CACHE_PAGE_SIZE;
+        String pageSizeStr = System.getProperty(GlobalConfig.BUFFER_CACHE_PAGE_SIZE_PROPERTY, null);
+        if (pageSizeStr != null) {
+            try {
+                pageSize = Integer.parseInt(pageSizeStr);
+            } catch (NumberFormatException nfe) {
+                if (GlobalConfig.ASTERIX_LOGGER.isLoggable(Level.WARNING)) {
+                    GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache page size argument. "
+                            + "Using default value: " + pageSize);
+                }
+            }
+        }
+
+        if (GlobalConfig.ASTERIX_LOGGER.isLoggable(Level.INFO)) {
+            GlobalConfig.ASTERIX_LOGGER.info("Buffer cache page size: " + pageSize);
+        }
+
+        return pageSize;
+    }
+
+    private int getBufferCacheNumPages() {
+        int numPages = GlobalConfig.DEFAULT_BUFFER_CACHE_NUM_PAGES;
+        String numPagesStr = System.getProperty(GlobalConfig.BUFFER_CACHE_NUM_PAGES_PROPERTY, null);
+        if (numPagesStr != null) {
+            try {
+                numPages = Integer.parseInt(numPagesStr);
+            } catch (NumberFormatException nfe) {
+                if (GlobalConfig.ASTERIX_LOGGER.isLoggable(Level.WARNING)) {
+                    GlobalConfig.ASTERIX_LOGGER.warning("Wrong buffer cache size argument. " + "Using default value: "
+                            + numPages);
+                }
+                return numPages;
+            }
+        }
+
+        if (GlobalConfig.ASTERIX_LOGGER.isLoggable(Level.INFO)) {
+            GlobalConfig.ASTERIX_LOGGER.info("Buffer cache size (number of pages): " + numPages);
+        }
+
+        return numPages;
+    }
+
+    public void deinitialize() throws HyracksDataException {
+        bufferCache.close();
+        for (IIndex index : indexLifecycleManager.getOpenIndexes()) {
+            index.deactivate();
+        }
+    }
+
+    public IBufferCache getBufferCache() {
+        return bufferCache;
+    }
+
+    public IFileMapProvider getFileMapManager() {
+        return fileMapManager;
+    }
+
+    public TransactionSubsystem getTransactionSubsystem() {
+        return txnSubsystem;
+    }
+
+    public IIndexLifecycleManager getIndexLifecycleManager() {
+        return indexLifecycleManager;
+    }
+
+    public ILSMMergePolicy getLSMMergePolicy() {
+        return mergePolicy;
+    }
+
+    public ILSMOperationTrackerFactory getLSMBTreeOperationTrackerFactory() {
+        return lsmBTreeOpTrackerFactory;
+    }
+
+    public ILSMOperationTrackerFactory getLSMRTreeOperationTrackerFactory() {
+        return lsmRTreeOpTrackerFactory;
+    }
+
+    public ILSMOperationTrackerFactory getLSMInvertedIndexOperationTrackerFactory() {
+        return lsmInvertedIndexOpTrackerFactory;
+    }
+
+    public ILSMIOOperationCallbackProvider getLSMBTreeIOOperationCallbackProvider() {
+        return AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER;
+    }
+
+    public ILSMIOOperationCallbackProvider getLSMRTreeIOOperationCallbackProvider() {
+        return AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER;
+    }
+
+    public ILSMIOOperationCallbackProvider getLSMInvertedIndexIOOperationCallbackProvider() {
+        return AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER;
+    }
+
+    public ILSMIOOperationCallbackProvider getNoOpIOOperationCallbackProvider() {
+        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+    }
+
+    public ILSMIOOperationScheduler getLSMIOScheduler() {
+        return lsmIOScheduler;
+    }
+
+    public ILocalResourceRepository getLocalResourceRepository() {
+        return localResourceRepository;
+    }
+
+    public ResourceIdFactory getResourceIdFactory() {
+        return resourceIdFactory;
+    }
+
+    public IIOManager getIOManager() {
+        return ioManager;
+    }
+}
\ No newline at end of file
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java
new file mode 100644
index 0000000..8f2b96f
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java
@@ -0,0 +1,104 @@
+package edu.uci.ics.asterix.common.context;
+
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+
+public class AsterixAppRuntimeContextProviderForRecovery implements IAsterixAppRuntimeContextProvider {
+
+    private final AsterixAppRuntimeContext asterixAppRuntimeContext;
+
+    public AsterixAppRuntimeContextProviderForRecovery(AsterixAppRuntimeContext asterixAppRuntimeContext) {
+        this.asterixAppRuntimeContext = asterixAppRuntimeContext;
+    }
+
+    @Override
+    public IBufferCache getBufferCache() {
+        return asterixAppRuntimeContext.getBufferCache();
+    }
+
+    @Override
+    public IFileMapProvider getFileMapManager() {
+        return asterixAppRuntimeContext.getFileMapManager();
+    }
+
+    @Override
+    public TransactionSubsystem getTransactionSubsystem() {
+        return asterixAppRuntimeContext.getTransactionSubsystem();
+    }
+
+    @Override
+    public IIndexLifecycleManager getIndexLifecycleManager() {
+        return asterixAppRuntimeContext.getIndexLifecycleManager();
+    }
+
+    @Override
+    public ILSMMergePolicy getLSMMergePolicy() {
+        return asterixAppRuntimeContext.getLSMMergePolicy();
+    }
+
+    @Override
+    public ILSMIOOperationScheduler getLSMIOScheduler() {
+        return asterixAppRuntimeContext.getLSMIOScheduler();
+    }
+
+    @Override
+    public ILocalResourceRepository getLocalResourceRepository() {
+        return asterixAppRuntimeContext.getLocalResourceRepository();
+    }
+
+    @Override
+    public ResourceIdFactory getResourceIdFactory() {
+        return asterixAppRuntimeContext.getResourceIdFactory();
+    }
+
+    @Override
+    public IIOManager getIOManager() {
+        return asterixAppRuntimeContext.getIOManager();
+    }
+
+    @Override
+    public ILSMOperationTrackerFactory getLSMBTreeOperationTrackerFactory() {
+        return asterixAppRuntimeContext.getLSMBTreeOperationTrackerFactory();
+    }
+
+    @Override
+    public ILSMOperationTrackerFactory getLSMRTreeOperationTrackerFactory() {
+        return asterixAppRuntimeContext.getLSMRTreeOperationTrackerFactory();
+    }
+
+    @Override
+    public ILSMOperationTrackerFactory getLSMInvertedIndexOperationTrackerFactory() {
+        return asterixAppRuntimeContext.getLSMInvertedIndexOperationTrackerFactory();
+    }
+
+    @Override
+    public ILSMIOOperationCallbackProvider getLSMBTreeIOOperationCallbackProvider() {
+        return asterixAppRuntimeContext.getLSMBTreeIOOperationCallbackProvider();
+    }
+
+    @Override
+    public ILSMIOOperationCallbackProvider getLSMRTreeIOOperationCallbackProvider() {
+        return asterixAppRuntimeContext.getLSMRTreeIOOperationCallbackProvider();
+    }
+
+    @Override
+    public ILSMIOOperationCallbackProvider getLSMInvertedIndexIOOperationCallbackProvider() {
+        return asterixAppRuntimeContext.getLSMInvertedIndexIOOperationCallbackProvider();
+    }
+
+    @Override
+    public ILSMIOOperationCallbackProvider getNoOpIOOperationCallbackProvider() {
+        return asterixAppRuntimeContext.getNoOpIOOperationCallbackProvider();
+    }
+
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixFileMapManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixFileMapManager.java
new file mode 100644
index 0000000..5c6611b
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixFileMapManager.java
@@ -0,0 +1,61 @@
+package edu.uci.ics.asterix.common.context;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
+
+public class AsterixFileMapManager implements IFileMapManager {
+
+    private static final long serialVersionUID = 1L;
+    private Map<Integer, String> id2nameMap = new HashMap<Integer, String>();
+    private Map<String, Integer> name2IdMap = new HashMap<String, Integer>();
+    private int idCounter = 0;
+
+    @Override
+    public FileReference lookupFileName(int fileId) throws HyracksDataException {
+        String fName = id2nameMap.get(fileId);
+        if (fName == null) {
+            throw new HyracksDataException("No mapping found for id: " + fileId);
+        }
+        return new FileReference(new File(fName));
+    }
+
+    @Override
+    public int lookupFileId(FileReference fileRef) throws HyracksDataException {
+        String fileName = fileRef.getFile().getAbsolutePath();
+        Integer fileId = name2IdMap.get(fileName);
+        if (fileId == null) {
+            throw new HyracksDataException("No mapping found for name: " + fileName);
+        }
+        return fileId;
+    }
+
+    @Override
+    public boolean isMapped(FileReference fileRef) {
+        String fileName = fileRef.getFile().getAbsolutePath();
+        return name2IdMap.containsKey(fileName);
+    }
+
+    @Override
+    public boolean isMapped(int fileId) {
+        return id2nameMap.containsKey(fileId);
+    }
+
+    @Override
+    public void unregisterFile(int fileId) throws HyracksDataException {
+        String fileName = id2nameMap.remove(fileId);
+        name2IdMap.remove(fileName);
+    }
+
+    @Override
+    public void registerFile(FileReference fileRef) throws HyracksDataException {
+        Integer fileId = idCounter++;
+        String fileName = fileRef.getFile().getAbsolutePath();
+        id2nameMap.put(fileId, fileName);
+        name2IdMap.put(fileName, fileId);
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java
new file mode 100644
index 0000000..fad0a38
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java
@@ -0,0 +1,96 @@
+package edu.uci.ics.asterix.common.context;
+
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMBTreeIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMInvertedIndexIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMRTreeIOOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+
+public class AsterixRuntimeComponentsProvider implements IIndexLifecycleManagerProvider, IStorageManagerInterface,
+        ILSMIOOperationSchedulerProvider, ILSMMergePolicyProvider, ILSMOperationTrackerFactory,
+        ILSMIOOperationCallbackProvider {
+    private static final long serialVersionUID = 1L;
+
+    private final ILSMIOOperationCallbackFactory ioOpCallbackFactory;
+
+    public static final AsterixRuntimeComponentsProvider LSMBTREE_PROVIDER = new AsterixRuntimeComponentsProvider(
+            LSMBTreeIOOperationCallbackFactory.INSTANCE);
+    public static final AsterixRuntimeComponentsProvider LSMRTREE_PROVIDER = new AsterixRuntimeComponentsProvider(
+            LSMRTreeIOOperationCallbackFactory.INSTANCE);
+    public static final AsterixRuntimeComponentsProvider LSMINVERTEDINDEX_PROVIDER = new AsterixRuntimeComponentsProvider(
+            LSMInvertedIndexIOOperationCallbackFactory.INSTANCE);
+    public static final AsterixRuntimeComponentsProvider NOINDEX_PROVIDER = new AsterixRuntimeComponentsProvider(null);
+
+    private AsterixRuntimeComponentsProvider(ILSMIOOperationCallbackFactory ioOpCallbackFactory) {
+        this.ioOpCallbackFactory = ioOpCallbackFactory;
+    }
+
+    @Override
+    public ILSMOperationTracker createOperationTracker(ILSMIndex index) {
+        return new IndexOperationTracker(index, ioOpCallbackFactory);
+    }
+
+    @Override
+    public ILSMIOOperationCallback getIOOperationCallback(ILSMIndex index) {
+        return ((IndexOperationTracker) index.getOperationTracker()).getIOOperationCallback();
+    }
+
+    @Override
+    public ILSMIOOperationScheduler getIOScheduler(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getLSMIOScheduler();
+    }
+
+    @Override
+    public ILSMMergePolicy getMergePolicy(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getLSMMergePolicy();
+    }
+
+    @Override
+    public IBufferCache getBufferCache(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getBufferCache();
+    }
+
+    @Override
+    public IFileMapProvider getFileMapProvider(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getFileMapManager();
+    }
+
+    @Override
+    public ILocalResourceRepository getLocalResourceRepository(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getLocalResourceRepository();
+    }
+
+    @Override
+    public IIndexLifecycleManager getLifecycleManager(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getIndexLifecycleManager();
+    }
+
+    @Override
+    public ResourceIdFactory getResourceIdFactory(IHyracksTaskContext ctx) {
+        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+                .getResourceIdFactory();
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java
new file mode 100644
index 0000000..74b0aa6
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.common.context;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
+
+public class ConstantMergePolicy implements ILSMMergePolicy {
+
+    private final int threshold;
+    private final AsterixAppRuntimeContext ctx;
+
+    public ConstantMergePolicy(int threshold, AsterixAppRuntimeContext ctx) {
+        this.threshold = threshold;
+        this.ctx = ctx;
+    }
+
+    public void diskComponentAdded(final ILSMIndex index, int totalNumDiskComponents) throws HyracksDataException,
+            IndexException {
+        if (!ctx.isShuttingdown() && totalNumDiskComponents >= threshold) {
+            ILSMIndexAccessor accessor = (ILSMIndexAccessor) index.createAccessor(NoOpOperationCallback.INSTANCE,
+                    NoOpOperationCallback.INSTANCE);
+            accessor.scheduleMerge(NoOpIOOperationCallback.INSTANCE);
+        }
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
new file mode 100644
index 0000000..85e5375
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.common.context;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * The purpose of this provider is to work around a cyclic dependency between asterix-common and asterix-transactions.
+ * The operation callbacks would depend on the AsterixAppRuntimeContext to get the transaction subsystem,
+ * while at the same time the AsterixAppRuntimeContext depends on asterix-transactions for the TransactionSubsystem.
+ */
+public class TransactionSubsystemProvider implements ITransactionSubsystemProvider {
+    @Override
+    public TransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx) {
+        AsterixAppRuntimeContext runtimeCtx = (AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
+                .getApplicationObject();
+        return runtimeCtx.getTransactionSubsystem();
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java
new file mode 100644
index 0000000..401af28
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.common.dataflow;
+
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
+import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
+
+/**
+ * Provides methods for obtaining the IIndexRegistryProvider, IStorageManager and
+ * ICCApplicationContext implementation.
+ */
+public interface IAsterixApplicationContextInfo {
+    public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider();
+
+    /**
+     * Returns an instance of the implementation for IStorageManagerInterface.
+     * 
+     * @return IStorageManagerInterface implementation instance
+     */
+    public IStorageManagerInterface getStorageManagerInterface();
+
+    /**
+     * Returns an instance of the implementation for ICCApplicationContext.
+     * 
+     * @return ICCApplicationContext implementation instance
+     */
+    public ICCApplicationContext getCCApplicationContext();
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionArgumentsConstants.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionArgumentsConstants.java
deleted file mode 100644
index 2a0ed70..0000000
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionArgumentsConstants.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package edu.uci.ics.asterix.common.functions;
-
-public interface FunctionArgumentsConstants {
-    public static final String BTREE_INDEX = "btree";
-
-    public static final String RTREE_INDEX = "rtree";
-}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
new file mode 100644
index 0000000..188593c
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
@@ -0,0 +1,53 @@
+package edu.uci.ics.asterix.common.functions;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class FunctionSignature implements Serializable {
+    private final String namespace;
+    private final String name;
+    private final int arity;
+    private final String rep;
+
+    public FunctionSignature(String namespace, String name, int arity) {
+        this.namespace = namespace;
+        this.name = name;
+        this.arity = arity;
+        rep = namespace + "." + name + "@" + arity;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof FunctionSignature)) {
+            return false;
+        } else {
+            FunctionSignature f = ((FunctionSignature) o);
+            return ((namespace != null && namespace.equals(f.getNamespace()) || (namespace == null && f.getNamespace() == null)))
+                    && name.equals(f.getName())
+                    && (arity == f.getArity() || arity == FunctionIdentifier.VARARGS || f.getArity() == FunctionIdentifier.VARARGS);
+        }
+    }
+
+    public String toString() {
+        return rep;
+    }
+
+    @Override
+    public int hashCode() {
+        return (namespace + "." + name).hashCode();
+    }
+
+    public String getNamespace() {
+        return namespace;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getArity() {
+        return arity;
+    }
+
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
index fc5c930..a3ebbbd 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
@@ -1,63 +1,77 @@
 package edu.uci.ics.asterix.common.utils;
 
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
 
 public class UTF8CharSequence implements CharSequence {
 
-    private int start;
-    private int len;
-    private char[] buf;
+	private int start;
+	private int len;
+	private char[] buf;
 
-    public UTF8CharSequence(IValueReference valueRef, int start) {
-        reset(valueRef, start);
-    }
+	public UTF8CharSequence(IValueReference valueRef, int start) {
+		reset(valueRef, start);
+	}
 
-    public UTF8CharSequence() {
-    }
+	public UTF8CharSequence() {
+	}
 
-    @Override
-    public char charAt(int index) {
-        if (index >= len || index < 0) {
-            throw new IndexOutOfBoundsException("No index " + index + " for string of length " + len);
-        }
-        return buf[index];
-    }
+	@Override
+	public char charAt(int index) {
+		if (index >= len || index < 0) {
+			throw new IndexOutOfBoundsException("No index " + index
+					+ " for string of length " + len);
+		}
+		return buf[index];
+	}
 
-    @Override
-    public int length() {
-        return len;
-    }
+	@Override
+	public int length() {
+		return len;
+	}
 
-    @Override
-    public CharSequence subSequence(int start, int end) {
-        UTF8CharSequence carSeq = new UTF8CharSequence();
-        carSeq.len = end - start + 1;
-        carSeq.buf = new char[carSeq.len];
-        System.arraycopy(buf, start, carSeq.buf, 0, carSeq.len);
-        return carSeq;
-    }
+	@Override
+	public CharSequence subSequence(int start, int end) {
+		UTF8CharSequence carSeq = new UTF8CharSequence();
+		carSeq.len = end - start;
+		if (end != start) {
+			carSeq.buf = new char[carSeq.len];
+			System.arraycopy(buf, start, carSeq.buf, 0, carSeq.len);
+		}
+		return carSeq;
+	}
 
-    public void reset(IValueReference valueRef, int start) {
-        this.start = start;
-        resetLength(valueRef);
-        if (buf == null || buf.length < len) {
-            buf = new char[len];
-        }
-        int sStart = start + 2;
-        int c = 0;
-        int i = 0;
-        byte[] bytes = valueRef.getBytes();
-        while (c < len) {
-            buf[i++] = UTF8StringPointable.charAt(bytes, sStart + c);
-            c += UTF8StringPointable.charSize(bytes, sStart + c);
-        }
+	public void reset(IValueReference valueRef, int start) {
+		this.start = start;
+		resetLength(valueRef);
+		if (buf == null || buf.length < len) {
+			buf = new char[len];
+		}
+		int sStart = start + 2;
+		int c = 0;
+		int i = 0;
+		byte[] bytes = valueRef.getByteArray();
+		while (c < len) {
+			buf[i++] = UTF8StringPointable.charAt(bytes, sStart + c);
+			c += UTF8StringPointable.charSize(bytes, sStart + c);
+		}
 
-    }
+	}
 
-    private void resetLength(IValueReference valueRef) {
-        this.len = UTF8StringPointable.getUTFLen(valueRef.getBytes(), start);
-    }
+	private void resetLength(IValueReference valueRef) {
+		this.len = UTF8StringPointable.getUTFLength(valueRef.getByteArray(),
+				start);
+	}
+
+	@Override
+	public String toString() {
+		StringBuffer bf = new StringBuffer();
+		if (buf != null) {
+			for (int i = 0; i < buf.length; i++) {
+				bf.append(buf[i]);
+			}
+		}
+		return new String(bf);
+	}
 
 }
diff --git a/asterix-dist/pom.xml b/asterix-dist/pom.xml
deleted file mode 100644
index df445e0..0000000
--- a/asterix-dist/pom.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <artifactId>asterix-dist</artifactId>
-  <parent>
-    <groupId>edu.uci.ics.asterix</groupId>
-    <artifactId>asterix</artifactId>
-    <version>0.0.4-SNAPSHOT</version>
-  </parent>
-
-  <build>
-    <plugins>
-      <plugin>
-        <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2-beta-5</version>
-        <executions>
-          <execution>
-            <configuration>
-              <descriptors>
-                <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
-              </descriptors>
-            </configuration>
-            <phase>package</phase>
-            <goals>
-              <goal>attached</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-    </plugins>
-  </build>
-  <dependencies>
-    <dependency>
-	  <groupId>edu.uci.ics.hyracks</groupId>
-  	  <artifactId>hyracks-server</artifactId>
-  	  <version>0.2.0</version>
-  	  <type>zip</type>
-      <classifier>binary-assembly</classifier>
-    </dependency>
-    <dependency>
-	  <groupId>edu.uci.ics.hyracks</groupId>
-  	  <artifactId>hyracks-cli</artifactId>
-  	  <version>0.2.0</version>
-  	  <type>zip</type>
-      <classifier>binary-assembly</classifier>
-    </dependency>
-    <dependency>
-	  <groupId>edu.uci.ics.asterix</groupId>
-  	  <artifactId>asterix-app</artifactId>
-  	  <version>0.0.4-SNAPSHOT</version>
-  	  <type>zip</type>
-      <classifier>binary-assembly</classifier>
-    </dependency>
-  </dependencies>
-</project>
diff --git a/asterix-dist/src/main/assembly/binary-assembly.xml b/asterix-dist/src/main/assembly/binary-assembly.xml
deleted file mode 100644
index ecf6d32..0000000
--- a/asterix-dist/src/main/assembly/binary-assembly.xml
+++ /dev/null
@@ -1,48 +0,0 @@
-<assembly>
-  <id>binary-assembly</id>
-  <formats>
-    <format>zip</format>
-    <format>dir</format>
-  </formats>
-  <includeBaseDirectory>false</includeBaseDirectory>
-  <fileSets>
-    <fileSet>
-      <directory>src/main/scripts</directory>
-      <outputDirectory>.</outputDirectory>
-    </fileSet>
-  </fileSets>
-  <dependencySets>
-    <dependencySet>
-      <outputDirectory>hyracks-server</outputDirectory>
-      <includes>
-        <include>hyracks-server*</include>
-      </includes>
-      <unpack>true</unpack>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>hyracks-cli</outputDirectory>
-      <includes>
-        <include>hyracks-cli*</include>
-      </includes>
-      <unpack>true</unpack>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>asterix</outputDirectory>
-      <outputFileNameMapping>${artifact.artifactId}.${artifact.extension}</outputFileNameMapping>
-      <includes>
-        <include>asterix-app*</include>
-      </includes>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <!--dependencySet>
-      <outputDirectory>archives</outputDirectory>
-      <outputFileNameMapping>${artifact.artifactId}.${artifact.extension}</outputFileNameMapping>
-      <excludes>
-        <exclude>asterix-dist*</exclude>
-      </excludes>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet-->
-  </dependencySets>
-</assembly>
diff --git a/asterix-dist/src/main/scripts/startasterix.sh b/asterix-dist/src/main/scripts/startasterix.sh
deleted file mode 100644
index b84834f..0000000
--- a/asterix-dist/src/main/scripts/startasterix.sh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/bin/bash
-
-# Logging output for the CC and NCs is directed to their appropriately named
-# files in LOG_HOME
-#
-# Example usage: ./runasterix.sh 4
-# Loads 1 CC, 4 NCs (nc0, nc1, nc2, and nc3)
-#
-
-BASEDIR=`pwd`/$(dirname $0)
-echo "Base dir: " ${BASEDIR}
-
-ASTERIX_BIN=${BASEDIR}/asterix/asterix-app.zip
-HYRACKS_SERVER_BIN=${BASEDIR}/hyracks-server/bin
-HYRACKS_CLI_BIN=${BASEDIR}/hyracks-cli/bin
-
-CONFIG_DIR=${BASEDIR}/config
-LOG_DIR=${BASEDIR}/log
-
-mkdir ${LOG_DIR} ${CONFIG_DIR}
-
-CONFIG_NAME=local-autogen.properties	        # name of config file to generate
-
-# check existence of directories
-dirs=($HYRACKS_SERVER_BIN $HYRACKS_CLI_BIN $LOG_DIR $CONFIG_DIR)
-for i in  "${dirs[@]}"
-do
-    if [ ! -d "$i" ]
-    then
-	    printf "Error: invalid directory layout -- can't access $i\n" >&2
-	    exit 2
-    fi
-done
-
-# set number of node controllers to load
-if [ "$1" == "" ]
-then
-	numnc=1
-else
-	if echo $1 | egrep -q '^[0-9]+$'; then
-		numnc=$1
-	else
-		printf "Error: $1 is not a number.\n" >&2
-		printf "usage: %s [number_of_ncs]\n" $(basename $0) >&2
-		exit 2
-	fi
-fi
-
-# generate a suitable config file
-echo "generating config file..."
-printf "MetadataNode=nc1\nNewUniverse=true\n" > $CONFIG_DIR/$CONFIG_NAME
-for ((i=1;i<=$numnc;i++)); do
-    echo "nc$i.stores=/tmp/nc$i/" >> $CONFIG_DIR/$CONFIG_NAME
-done
-echo "OutputDir=/tmp/asterix_output/" >> $CONFIG_DIR/$CONFIG_NAME
-
-# point to the config file and give java some extra memory
-export CLASSPATH_PREFIX=$CONFIG_DIR
-export JAVA_OPTS="-DAsterixConfigFileName=$CONFIG_NAME -Xms256m -Xmx512m"
-
-echo "cluster controller starting..."
-sh $HYRACKS_SERVER_BIN/hyrackscc -cc-root localhost -client-net-ip-address 127.0.0.1 -cluster-net-ip-address 127.0.0.1 &> $LOG_DIR/cc.log &
-
-# for some reason this helps against getting a socket error
-sleep 3
-
-# start the node controllers
-for ((i=1;i<=$numnc;i++)); do
-	echo "node controller (nc$i) starting..."
-	sh $HYRACKS_SERVER_BIN/hyracksnc -cc-host localhost -cluster-net-ip-address 127.0.0.1 -data-ip-address 127.0.0.1 -node-id "nc$i" \
-		&> $LOG_DIR/nc$i.log &
-
-    # avoid socket error
-	sleep .5
-done
-
-# deploy the asterix application to hyracks
-echo "connect to \"localhost\";create application asterix \"$ASTERIX_BIN\";" > $CONFIG_DIR/deploy.hcli
-cat $CONFIG_DIR/deploy.hcli | sh $HYRACKS_CLI_BIN/hyrackscli
diff --git a/asterix-dist/src/main/scripts/stopasterix.sh b/asterix-dist/src/main/scripts/stopasterix.sh
deleted file mode 100644
index 7b32b85..0000000
--- a/asterix-dist/src/main/scripts/stopasterix.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-# get the PIDs of java processes we started
-if [ "$JAVA_HOME" != "" ]
-then
-    PIDS=`$JAVA_HOME/bin/jps`
-else
-    PIDS=`jps`
-fi
-
-while IFS='\n' read -ra MYPIDS; do
-    for i in "${MYPIDS[@]}"; do
-        pid=`echo $i | grep 'CCDriver\|NCDriver\|VirtualClusterDriver' | awk '{print $1}'`
-        name=`echo $i | grep 'CCDriver\|NCDriver\|VirtualClusterDriver' | awk '{print $2}'`
-        if [ "$pid" != "" ]
-        then
-            echo "Stopping $name: $pid"
-            kill -9 $pid
-        fi
-    done
-done <<< "$PIDS"
diff --git a/asterix-events/pom.xml b/asterix-events/pom.xml
new file mode 100644
index 0000000..46bb96a
--- /dev/null
+++ b/asterix-events/pom.xml
@@ -0,0 +1,171 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+          <artifactId>asterix</artifactId>
+          <groupId>edu.uci.ics.asterix</groupId>
+          <version>0.0.4-SNAPSHOT</version>
+  </parent>
+  <groupId>edu.uci.ics.asterix</groupId>
+  <artifactId>asterix-events</artifactId>
+  <version>0.0.4-SNAPSHOT</version>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <build>
+    <plugins>
+       <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>2.0.2</version>
+          <configuration>
+             <source>1.6</source>
+             <target>1.6</target>
+          </configuration>
+       </plugin>
+       <plugin>
+          <groupId>org.jvnet.jaxb2.maven2</groupId>
+          <artifactId>maven-jaxb2-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>event</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>event.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.event</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/event</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>pattern</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>pattern.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.pattern</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/pattern</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>cluster</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>cluster.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.cluster</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
+                <bindingDirectory>src/main/resources/schema</bindingDirectory>
+                <bindingIncludes>
+                  <bindingInclude>jaxb-bindings.xjb</bindingInclude>
+                </bindingIncludes>
+              </configuration>
+            </execution>
+          </executions>
+       </plugin>
+       <plugin>
+         <artifactId>maven-assembly-plugin</artifactId>
+         <version>2.2-beta-2</version>
+         <executions>
+           <execution>
+             <configuration>
+               <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+             </configuration>
+             <phase>package</phase>
+             <goals>
+               <goal>attached</goal>
+             </goals>
+           </execution>
+         </executions>
+       </plugin>
+    </plugins>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>args4j</groupId>
+      <artifactId>args4j</artifactId>
+      <version>2.0.12</version>
+      <type>jar</type>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jvnet.jaxb2_commons</groupId>
+      <artifactId>jaxb2-value-constructor</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>commons-io</groupId>
+      <artifactId>commons-io</artifactId>
+      <version>1.4</version>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/asterix-events/src/main/assembly/binary-assembly.xml b/asterix-events/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..29ebbdd
--- /dev/null
+++ b/asterix-events/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,27 @@
+<assembly>
+  <id>bin</id>
+  <formats>
+    <format>tar.gz</format>
+    <format>tar.bz2</format>
+    <format>zip</format>
+  </formats>
+  <fileSets>
+    <fileSet>
+      <directory>src/main/resources/events</directory>
+      <outputDirectory>events</outputDirectory>
+      <includes></includes>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <outputDirectory>scripts</outputDirectory>
+      <includes></includes>
+    </fileSet>
+    <fileSet>
+      <directory>target</directory>
+      <outputDirectory>target</outputDirectory>
+      <includes>
+        <include>*.jar</include>
+      </includes>
+    </fileSet>
+  </fileSets>
+</assembly>
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
new file mode 100644
index 0000000..630f9b3
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.api;
+
+import java.util.List;
+
+public class ClusterInfo {
+
+	List<NodeInfo> nodes;
+
+	public ClusterInfo(List<NodeInfo> nodes) {
+		this.nodes = nodes;
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
new file mode 100644
index 0000000..835e0dc
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.api;
+
+public class NodeInfo {
+
+	private final String id;
+	private final String ip;
+
+	public NodeInfo(String id, String ip) {
+		this.id = id;
+		this.ip = ip;
+	}
+
+	public String getId() {
+		return id;
+	}
+
+	public String getIp() {
+		return ip;
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
new file mode 100644
index 0000000..9d0138b
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.driver;
+
+import org.kohsuke.args4j.Option;
+
+public class EventConfig {
+
+	@Option(name = "-h", required = false, usage = "Help")
+	public boolean help = false;
+
+	@Option(name = "-d", required = false, usage = "Show the execution on a timeline")
+	public boolean dryRun = false;
+
+	@Option(name = "-s", required = false, usage = "Seed for randomization")
+	public int seed = -1;
+
+	@Option(name = "-c", required = true, usage = "Path to cluster configuration (REQUIRED)")
+	public String clusterPath;
+
+	@Option(name = "-p", required = true, usage = "Path to pattern configuration (REQUIRED)")
+	public String patternPath;
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
new file mode 100644
index 0000000..66c0102
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.driver;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+
+import org.kohsuke.args4j.CmdLineParser;
+
+import edu.uci.ics.asterix.event.management.DefaultOutputHandler;
+import edu.uci.ics.asterix.event.management.EventUtil;
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.management.IOutputHandler;
+import edu.uci.ics.asterix.event.management.Randomizer;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+
+public class EventDriver {
+
+    public static final String CLIENT_NODE_ID = "client_node";
+    public static final Node CLIENT_NODE = new Node(CLIENT_NODE_ID, "127.0.0.1", null, null, null, null, null, null);
+
+    private static String eventsDir;
+    private static Events events;
+    private static Map<String, String> env = new HashMap<String, String>();
+    private static String scriptDirSuffix;
+
+    public static String getEventsDir() {
+        return eventsDir;
+    }
+
+    public static Events getEvents() {
+        return events;
+    }
+
+    public static Map<String, String> getEnvironment() {
+        return env;
+    }
+
+    public static String getStringifiedEnv(Cluster cluster) {
+        StringBuffer buffer = new StringBuffer();
+        for (Property p : cluster.getEnv().getProperty()) {
+            buffer.append(p.getKey() + "=" + p.getValue() + " ");
+        }
+        return buffer.toString();
+    }
+
+    public static Cluster initializeCluster(String path) throws JAXBException, IOException {
+        File file = new File(path);
+        JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        Cluster cluster = (Cluster) unmarshaller.unmarshal(file);
+        for (Property p : cluster.getEnv().getProperty()) {
+            env.put(p.getKey(), p.getValue());
+        }
+        return cluster;
+    }
+
+    public static Patterns initializePatterns(String path) throws JAXBException, IOException {
+        File file = new File(path);
+        JAXBContext ctx = JAXBContext.newInstance(Patterns.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        return (Patterns) unmarshaller.unmarshal(file);
+    }
+
+    private static void initialize(EventConfig eventConfig) throws IOException, JAXBException {
+
+    }
+
+    public static EventrixClient getClient(String eventsDir, Cluster cluster, boolean dryRun) throws Exception {
+        return new EventrixClient(eventsDir, cluster, dryRun, new DefaultOutputHandler());
+    }
+
+    public static EventrixClient getClient(String eventsDir, Cluster cluster, boolean dryRun,
+            IOutputHandler outputHandler) throws Exception {
+        return new EventrixClient(eventsDir, cluster, dryRun, outputHandler);
+    }
+
+    public static void main(String[] args) throws Exception {
+        String eventsHome = System.getenv("EVENT_HOME");
+        if (eventsHome == null) {
+            throw new IllegalStateException("EVENT_HOME is not set");
+        }
+        eventsDir = eventsHome + File.separator + EventUtil.EVENTS_DIR;
+        EventConfig eventConfig = new EventConfig();
+        CmdLineParser parser = new CmdLineParser(eventConfig);
+        try {
+            parser.parseArgument(args);
+            if (eventConfig.help) {
+                parser.printUsage(System.out);
+            }
+            if (eventConfig.seed > 0) {
+                Randomizer.getInstance(eventConfig.seed);
+            }
+            Cluster cluster = initializeCluster(eventConfig.clusterPath);
+            Patterns patterns = initializePatterns(eventConfig.patternPath);
+            initialize(eventConfig);
+
+            if (!eventConfig.dryRun) {
+                prepare(cluster);
+            }
+            EventrixClient client = new EventrixClient(eventsDir, cluster, eventConfig.dryRun,
+                    new DefaultOutputHandler());
+            client.submit(patterns);
+            if (!eventConfig.dryRun) {
+                cleanup(cluster);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            parser.printUsage(System.err);
+        }
+    }
+
+    private static void prepare(Cluster cluster) throws IOException, InterruptedException {
+
+        scriptDirSuffix = "" + System.nanoTime();
+        List<String> args = new ArrayList<String>();
+        args.add(scriptDirSuffix);
+        Node clientNode = new Node();
+        clientNode.setId("client");
+        clientNode.setClusterIp("127.0.0.1");
+        for (Node node : cluster.getNode()) {
+            args.add(node.getClusterIp());
+        }
+        EventUtil.executeLocalScript(clientNode, eventsDir + "/" + "events" + "/" + "prepare.sh", args);
+    }
+
+    private static void cleanup(Cluster cluster) throws IOException, InterruptedException {
+        List<String> args = new ArrayList<String>();
+        args.add(scriptDirSuffix);
+        Node clientNode = new Node();
+        clientNode.setId("client");
+        clientNode.setClusterIp("127.0.0.1");
+        for (Node node : cluster.getNode()) {
+            args.add(node.getClusterIp());
+        }
+        EventUtil.executeLocalScript(clientNode, eventsDir + "/" + "events" + "/" + "cleanup.sh", args);
+    }
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
new file mode 100644
index 0000000..e8f06a0
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+
+public class DefaultOutputHandler implements IOutputHandler {
+
+    @Override
+    public OutputAnalysis reportEventOutput(Event event, String output) {
+        return new OutputAnalysis(true, null);
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java
new file mode 100644
index 0000000..a6c038b
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+public class ErrorHandler {
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
new file mode 100644
index 0000000..6d89c88
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.io.IOUtils;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+
+public class EventExecutor {
+
+    public static final String EVENTS_DIR = "events";
+    private static final String EXECUTE_SCRIPT = "execute.sh";
+    private static final String IP_LOCATION = "IP_LOCATION";
+    private static final String CLUSTER_ENV = "ENV";
+    private static final String SCRIPT = "SCRIPT";
+    private static final String ARGS = "ARGS";
+    private static final String DAEMON = "DAEMON";
+
+    public void executeEvent(Node node, String script, List<String> args, boolean isDaemon, Cluster cluster,
+            Pattern pattern, IOutputHandler outputHandler, EventrixClient client) throws IOException {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(client.getEventsDir() + File.separator + "scripts" + File.separator + EXECUTE_SCRIPT);
+        StringBuffer envBuffer = new StringBuffer(IP_LOCATION + "=" + node.getClusterIp() + " ");
+        if (!node.getId().equals(EventDriver.CLIENT_NODE_ID) && cluster.getEnv() != null) {
+            for (Property p : cluster.getEnv().getProperty()) {
+                if (p.getKey().equals("JAVA_HOME")) {
+                    String val = node.getJavaHome() == null ? p.getValue() : node.getJavaHome();
+                    envBuffer.append(p.getKey() + "=" + val + " ");
+                } else if (p.getKey().equals("JAVA_OPTS")) {
+                    StringBuilder builder = new StringBuilder();
+                    builder.append("\"");
+                    String javaOpts = (node.getJavaOpts() == null ? cluster.getJavaOpts() : node.getJavaOpts());
+                    if (javaOpts != null) {
+                        builder.append(javaOpts);
+                    }
+                    if (cluster.isDebugEnabled() != null && cluster.isDebugEnabled().booleanValue()) {
+                        BigInteger debugPort = node.getDebug() == null ? cluster.getDebug() : node.getDebug();
+                        if (debugPort != null) {
+                            builder.append("-Xdebug -Xrunjdwp:transport=dt_socket,address=" + debugPort.intValue()
+                                    + "," + "server=y,suspend=n");
+                        }
+                    }
+                    builder.append("\"");
+                    envBuffer.append(p.getKey() + "=" + builder + " ");
+                } else {
+                    envBuffer.append(p.getKey() + "=" + p.getValue() + " ");
+                }
+
+            }
+            pargs.add(cluster.getUsername() == null ? System.getProperty("user.name") : cluster.getUsername());
+        }
+
+        StringBuffer argBuffer = new StringBuffer();
+        if (args != null && args.size() > 0) {
+            for (String arg : args) {
+                argBuffer.append(arg + " ");
+            }
+        }
+
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().put(IP_LOCATION, node.getClusterIp());
+        pb.environment().put(CLUSTER_ENV, envBuffer.toString());
+        pb.environment().put(SCRIPT, script);
+        pb.environment().put(ARGS, argBuffer.toString());
+        pb.environment().put(DAEMON, isDaemon ? "true" : "false");
+
+        Process p = pb.start();
+        if (!isDaemon) {
+            BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
+            StringWriter writer = new StringWriter();
+            IOUtils.copy(bis, writer, "UTF-8");
+            String result = writer.getBuffer().toString();
+            OutputAnalysis analysis = outputHandler.reportEventOutput(pattern.getEvent(), result);
+            if (!analysis.isExpected()) {
+                throw new IOException(analysis.getErrorMessage() + result);
+            }
+        }
+    }
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
new file mode 100644
index 0000000..2586adf
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Date;
+import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
+import org.apache.log4j.Logger;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Period;
+
+public class EventTask extends TimerTask {
+
+	public static enum State {
+		INITIALIZED, IN_PROGRESS, COMPLETED, FAILED
+	}
+
+	private static final Logger logger = Logger.getLogger(EventTask.class
+			.getName());
+
+	private Pattern pattern;
+	private Event event;
+	private long interval = 0;
+	private long initialDelay = 0;
+	private int maxOccurs = Integer.MAX_VALUE;
+	private int occurrenceCount = 0;
+	private Timer timer;
+	private String taskScript;
+	private Node location;
+	private List<String> taskArgs;
+	private EventrixClient client;
+	private List<Node> candidateLocations;
+	private boolean dynamicLocation = false;
+	private boolean reuseLocation = false;
+	private State state;
+
+	
+
+	public EventTask(Pattern pattern, EventrixClient client) {
+		this.pattern = pattern;
+		this.client = client;
+		Period period = pattern.getPeriod();
+		if (period != null && period.getAbsvalue() != null) {
+			this.interval = EventUtil.parseTimeInterval(period.getAbsvalue(),
+					period.getUnit());
+		}
+		if (pattern.getDelay() != null) {
+			this.initialDelay = EventUtil.parseTimeInterval(new ValueType(
+					pattern.getDelay().getValue()), pattern.getDelay()
+					.getUnit());
+		}
+		if (pattern.getMaxOccurs() != null) {
+			this.maxOccurs = pattern.getMaxOccurs();
+		}
+		this.timer = new Timer();
+		taskArgs = EventUtil.getEventArgs(pattern);
+		candidateLocations = EventUtil.getCandidateLocations(pattern,
+				client.getCluster());
+		if (pattern.getEvent().getNodeid().getValue().getRandom() != null
+				&& period != null && maxOccurs > 1) {
+			dynamicLocation = true;
+			reuseLocation = pattern.getEvent().getNodeid().getValue()
+					.getRandom().getRange().isReuse();
+		} else {
+			location = EventUtil.getEventLocation(pattern, candidateLocations,
+					client.getCluster());
+		}
+		String scriptsDir;
+		if (location.getId().equals(EventDriver.CLIENT_NODE_ID)) {
+			scriptsDir = client.getEventsDir() + File.separator + "events";
+		} else {
+			scriptsDir = client.getCluster().getWorkingDir().getDir()
+					+ File.separator + "eventrix" + File.separator + "events";
+		}
+		event = EventUtil.getEvent(pattern, client.getEvents());
+		taskScript = scriptsDir + File.separator + event.getScript();
+		state = State.INITIALIZED;
+	}
+
+	public void start() {
+		if (interval > 0) {
+			timer.schedule(this, initialDelay, interval);
+		} else {
+			timer.schedule(this, initialDelay);
+		}
+	}
+
+	@Override
+	public void run() {
+		if (candidateLocations.size() == 0) {
+			timer.cancel();
+			client.notifyCompletion(new EventTaskReport(this));
+		} else {
+			if (dynamicLocation) {
+				location = EventUtil.getEventLocation(pattern,
+						candidateLocations, client.getCluster());
+				if (!reuseLocation) {
+					candidateLocations.remove(location);
+				}
+			}
+
+			logger.debug(EventUtil.dateFormat.format(new Date()) + " "
+					+ "EVENT " + pattern.getEvent().getType().toUpperCase()
+					+ " at " + location.getId().toUpperCase());
+			try {
+				if (!client.isDryRun()) {
+					new EventExecutor().executeEvent(location, taskScript,
+							taskArgs, event.isDaemon(), client.getCluster(),
+							pattern, client.getErrorHandler(), client);
+				}
+				occurrenceCount++;
+				if (occurrenceCount >= maxOccurs) {
+					timer.cancel();
+					client.notifyCompletion(new EventTaskReport(this));
+				}
+			} catch (IOException ioe) {
+				timer.cancel();
+				client.notifyCompletion(new EventTaskReport(this, false, ioe));
+			}
+		}
+
+	}
+
+	public Node getLocation() {
+		return location;
+	}
+
+	public long getInterval() {
+		return interval;
+	}
+
+	public long getInitialDelay() {
+		return initialDelay;
+	}
+
+	public Pattern getPattern() {
+		return pattern;
+	}
+
+	public State getState() {
+		return state;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java
new file mode 100644
index 0000000..7ad3682
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.Serializable;
+
+public class EventTaskReport implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private final EventTask task;
+    private final boolean success;
+    private final Exception e;
+
+    public EventTaskReport(EventTask task, boolean success, Exception e) {
+        this.task = task;
+        this.success = success;
+        this.e = e;
+    }
+
+    public EventTaskReport(EventTask task) {
+        this.task = task;
+        this.success = true;
+        this.e = null;
+    }
+
+    public Exception getException() {
+        return e;
+    }
+
+    public EventTask getTask() {
+        return task;
+    }
+
+    public boolean isSuccess() {
+        return success;
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
new file mode 100644
index 0000000..e6c58eb
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
@@ -0,0 +1,262 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.IOException;
+import java.math.BigInteger;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.management.ValueType.Type;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Event;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+
+public class EventUtil {
+
+	public static final String EVENTS_DIR = "events";
+	public static final String CLUSTER_CONF = "config/cluster.xml";
+	public static final String PATTERN_CONF = "config/pattern.xml";
+	public static final DateFormat dateFormat = new SimpleDateFormat(
+			"yyyy/MM/dd HH:mm:ss");
+
+	private static final String IP_LOCATION = "IP_LOCATION";
+	private static final String CLUSTER_ENV = "ENV";
+	private static final String SCRIPT = "SCRIPT";
+	private static final String ARGS = "ARGS";
+	private static final String EXECUTE_SCRIPT = "events/execute.sh";
+
+	public static long parseTimeInterval(ValueType v, String unit)
+			throws IllegalArgumentException {
+		int val = 0;
+		switch (v.getType()) {
+		case ABS:
+			val = Integer.parseInt(v.getAbsoluteValue());
+			break;
+		case RANDOM_MIN_MAX:
+			val = Randomizer.getInstance().getRandomInt(v.getMin(), v.getMax());
+			break;
+		case RANDOM_RANGE:
+			String[] values = v.getRangeSet();
+			val = Integer.parseInt(values[Randomizer.getInstance()
+					.getRandomInt(0, values.length - 1)]);
+			break;
+		}
+		return computeInterval(val, unit);
+	}
+
+	public static long parseTimeInterval(String v, String unit)
+			throws IllegalArgumentException {
+		int value = Integer.parseInt(v);
+		return computeInterval(value, unit);
+	}
+
+	private static long computeInterval(int val, String unit) {
+		int vmult = 1;
+		if ("hr".equalsIgnoreCase(unit)) {
+			vmult = 3600 * 1000;
+		} else if ("min".equalsIgnoreCase(unit)) {
+			vmult = 60 * 1000;
+		} else if ("sec".equalsIgnoreCase(unit)) {
+			vmult = 1000;
+		} else
+			throw new IllegalArgumentException(
+					" invalid unit value specified for frequency (hr,min,sec)");
+		return val * vmult;
+
+	}
+
+	public static Event getEvent(Pattern pattern, Events events) {
+		for (Event event : events.getEvent()) {
+			if (event.getType().equals(pattern.getEvent().getType())) {
+				return event;
+			}
+		}
+		throw new IllegalArgumentException(" Unknown event type"
+				+ pattern.getEvent().getType());
+	}
+
+	public static Node getEventLocation(Pattern pattern,
+			List<Node> candidateLocations, Cluster cluster) {
+		ValueType value = new ValueType(pattern.getEvent().getNodeid()
+				.getValue());
+		Node location = null;
+		Type vtype = value.getType();
+
+		switch (vtype) {
+		case ABS:
+			location = getNodeFromId(value.getAbsoluteValue(), cluster);
+			break;
+		case RANDOM_RANGE:
+			int nodeIndex = Randomizer.getInstance().getRandomInt(0,
+					candidateLocations.size() - 1);
+			location = candidateLocations.get(nodeIndex);
+			break;
+		case RANDOM_MIN_MAX:
+			throw new IllegalStateException(
+					" Canont configure a min max value range for location");
+		}
+		return location;
+
+	}
+
+	public static List<Node> getCandidateLocations(Pattern pattern,
+			Cluster cluster) {
+		ValueType value = new ValueType(pattern.getEvent().getNodeid()
+				.getValue());
+		List<Node> candidateList = new ArrayList<Node>();
+		switch (value.getType()) {
+		case ABS:
+			candidateList.add(getNodeFromId(value.getAbsoluteValue(), cluster));
+			break;
+		case RANDOM_RANGE:
+			boolean anyOption = false;
+			String[] values = value.getRangeSet();
+			for (String v : values) {
+				if (v.equalsIgnoreCase("ANY")) {
+					anyOption = true;
+				}
+			}
+			if (anyOption) {
+				for (Node node : cluster.getNode()) {
+					candidateList.add(node);
+				}
+			} else {
+				boolean found = false;
+				for (String v : values) {
+					for (Node node : cluster.getNode()) {
+						if (node.getId().equals(v)) {
+							candidateList.add(node);
+							found = true;
+							break;
+						}
+					}
+					if (!found) {
+						throw new IllegalStateException("Unknonw nodeId : " + v);
+					}
+					found = false;
+				}
+
+			}
+			String[] excluded = value.getRangeExcluded();
+			if (excluded != null && excluded.length > 0) {
+				List<Node> markedForRemoval = new ArrayList<Node>();
+				for (String exclusion : excluded) {
+					for (Node node : candidateList) {
+						if (node.getId().equals(exclusion)) {
+							markedForRemoval.add(node);
+						}
+					}
+				}
+				candidateList.removeAll(markedForRemoval);
+			}
+			break;
+		case RANDOM_MIN_MAX:
+			throw new IllegalStateException(
+					" Invalid value configured for location");
+		}
+		return candidateList;
+	}
+
+	private static Node getNodeFromId(String nodeid, Cluster cluster) {
+		if (nodeid.equals(EventDriver.CLIENT_NODE.getId())) {
+			return EventDriver.CLIENT_NODE;
+		}
+
+		if (nodeid.equals(cluster.getMasterNode().getId())) {
+			String javaOpts = cluster.getMasterNode().getJavaOpts() == null ? cluster
+					.getJavaOpts() : cluster.getMasterNode().getJavaOpts();
+			String logDir = cluster.getMasterNode().getLogdir() == null ? cluster
+					.getLogdir() : cluster.getMasterNode().getLogdir();
+			String javaHome = cluster.getMasterNode().getJavaHome() == null ? cluster
+					.getJavaHome() : cluster.getMasterNode().getJavaHome();
+			BigInteger debug = cluster.getMasterNode().getDebug();
+			return new Node(cluster.getMasterNode().getId(), cluster
+					.getMasterNode().getClusterIp(), javaHome, javaOpts,
+					logDir, null, null, debug);
+		}
+
+		List<Node> nodeList = cluster.getNode();
+		for (Node node : nodeList) {
+			if (node.getId().equals(nodeid)) {
+				return node;
+			}
+		}
+		StringBuffer buffer = new StringBuffer();
+		buffer.append(EventDriver.CLIENT_NODE.getId() + ",");
+		buffer.append(cluster.getMasterNode().getId() + ",");
+		for (Node v : cluster.getNode()) {
+			buffer.append(v.getId() + ",");
+		}
+		buffer.deleteCharAt(buffer.length() - 1);
+		throw new IllegalArgumentException("Unknown node id :" + nodeid
+				+ " valid ids:" + buffer);
+	}
+
+	public static void executeEventScript(Node node, String script,
+			List<String> args, Cluster cluster) throws IOException,
+			InterruptedException {
+		List<String> pargs = new ArrayList<String>();
+		pargs.add("/bin/bash");
+		pargs.add(EventDriver.getEventsDir() + "/" + EXECUTE_SCRIPT);
+		StringBuffer argBuffer = new StringBuffer();
+		String env = EventDriver.getStringifiedEnv(cluster) + " " + IP_LOCATION
+				+ "=" + node.getClusterIp();
+		if (args != null) {
+			for (String arg : args) {
+				argBuffer.append(arg + " ");
+			}
+		}
+		ProcessBuilder pb = new ProcessBuilder(pargs);
+		pb.environment().putAll(EventDriver.getEnvironment());
+		pb.environment().put(IP_LOCATION, node.getClusterIp());
+		pb.environment().put(CLUSTER_ENV, env);
+		pb.environment().put(SCRIPT, script);
+		pb.environment().put(ARGS, argBuffer.toString());
+		pb.start();
+	}
+
+	public static void executeLocalScript(Node node, String script,
+			List<String> args) throws IOException, InterruptedException {
+		List<String> pargs = new ArrayList<String>();
+		pargs.add("/bin/bash");
+		pargs.add(script);
+		if (args != null) {
+			pargs.addAll(args);
+		}
+		ProcessBuilder pb = new ProcessBuilder(pargs);
+		pb.environment().putAll(EventDriver.getEnvironment());
+		pb.environment().put(IP_LOCATION, node.getClusterIp());
+		pb.start();
+	}
+
+	public static List<String> getEventArgs(Pattern pattern) {
+		List<String> pargs = new ArrayList<String>();
+		if (pattern.getEvent().getPargs() == null) {
+			return pargs;
+		}
+		String[] args = pattern.getEvent().getPargs().split(" ");
+		for (String arg : args) {
+			pargs.add(arg.trim());
+		}
+		return pargs;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
new file mode 100644
index 0000000..6f4336d
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Nodeid;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+
+public class EventrixClient {
+
+    private static final Logger LOGGER = Logger.getLogger(EventrixClient.class.getName());
+
+    private EventTask[] tasks;
+    private boolean dryRun = false;
+    private LinkedBlockingQueue<EventTaskReport> msgInbox = new LinkedBlockingQueue<EventTaskReport>();
+    private AtomicInteger pendingTasks = new AtomicInteger(0);
+    private final Cluster cluster;
+    private IPatternListener listener;
+    private IOutputHandler outputHandler;
+    private Events events;
+    private String eventsDir;
+
+    public EventrixClient(String eventsDir, Cluster cluster, boolean dryRun, IOutputHandler outputHandler)
+            throws Exception {
+        this.eventsDir = eventsDir;
+        this.events = initializeEvents();
+        this.cluster = cluster;
+        this.dryRun = dryRun;
+        this.outputHandler = outputHandler;
+        if (!dryRun) {
+            initializeCluster(eventsDir);
+        }
+    }
+
+    public void submit(Patterns patterns) throws Exception {
+        initTasks(patterns);
+        try {
+            waitForCompletion();
+        } catch (InterruptedException ie) {
+            LOGGER.info("Interrupted exception :" + ie);
+        } catch (Exception e) {
+            throw e;
+        }
+
+    }
+
+    public void submit(Patterns patterns, IPatternListener listener) throws Exception {
+        this.listener = listener;
+        initTasks(patterns);
+    }
+
+    private void initTasks(Patterns patterns) {
+        tasks = new EventTask[patterns.getPattern().size()];
+        pendingTasks.set(tasks.length);
+        int index = 0;
+        for (Pattern pattern : patterns.getPattern()) {
+            tasks[index] = new EventTask(pattern, this);
+            tasks[index].start();
+            index++;
+        }
+    }
+
+    public Cluster getCluster() {
+        return cluster;
+    }
+
+    public boolean isDryRun() {
+        return dryRun;
+    }
+
+    public Events getEvents() {
+        return events;
+    }
+
+    public String getEventsDir() {
+        return eventsDir;
+    }
+
+    public synchronized void notifyCompletion(EventTaskReport report) {
+
+        if (report.isSuccess()) {
+            if (listener != null) {
+                pendingTasks.decrementAndGet();
+                listener.eventCompleted(report);
+                if (pendingTasks.get() == 0) {
+                    listener.jobCompleted();
+                }
+            } else {
+                try {
+                    msgInbox.put(report);
+                } catch (InterruptedException e) {
+                }
+            }
+        } else {
+            for (EventTask t : tasks) {
+                if (t.getState() == EventTask.State.INITIALIZED || t.getState() == EventTask.State.IN_PROGRESS) {
+                    t.cancel();
+                }
+            }
+            if (listener != null) {
+                listener.jobFailed(report);
+            } else {
+                try {
+                    msgInbox.put(report);
+                } catch (InterruptedException e) {
+                }
+            }
+        }
+    }
+
+    private void waitForCompletion() throws Exception {
+        while (true) {
+            EventTaskReport report = msgInbox.take();
+            if (report.isSuccess()) {
+                if (pendingTasks.decrementAndGet() == 0) {
+                    break;
+                }
+            } else {
+                throw new RuntimeException(report.getException().getMessage());
+            }
+        }
+    }
+
+    private void initializeCluster(String eventsDir) throws Exception {
+        Patterns patterns = initPattern(eventsDir);
+        submit(patterns);
+    }
+
+	private Patterns initPattern(String eventsDir) {
+		Nodeid nodeid = new Nodeid(new Value(null,
+				EventDriver.CLIENT_NODE.getId()));
+		List<Pattern> patternList = new ArrayList<Pattern>();
+		String workingDir = cluster.getWorkingDir().getDir();
+		String username = cluster.getUsername() == null ? System
+				.getProperty("user.name") : cluster.getUsername();
+		patternList.add(getDirectoryTransferPattern(username, eventsDir,
+				nodeid, cluster.getMasterNode().getClusterIp(), workingDir));
+
+		if (!cluster.getWorkingDir().isNFS()) {
+			for (Node node : cluster.getNode()) {
+				patternList.add(getDirectoryTransferPattern(username,
+						eventsDir, nodeid, node.getClusterIp(), workingDir));
+			}
+		}
+		Patterns patterns = new Patterns(patternList);
+		return patterns;
+	}
+
+    private Pattern getDirectoryTransferPattern(String username, String src, Nodeid srcNode, String destNodeIp,
+            String destDir) {
+        String pargs = username + " " + src + " " + destNodeIp + " " + destDir;
+        Event event = new Event("directory_transfer", srcNode, pargs);
+        return new Pattern(null, 1, null, event);
+    }
+
+    public IOutputHandler getErrorHandler() {
+        return outputHandler;
+    }
+
+    private Events initializeEvents() throws JAXBException, FileNotFoundException {
+        File file = new File(eventsDir + File.separator + "events" + File.separator + "events.xml");
+        JAXBContext eventCtx = JAXBContext.newInstance(Events.class);
+        Unmarshaller unmarshaller = eventCtx.createUnmarshaller();
+        events = (Events) unmarshaller.unmarshal(file);
+        return events;
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
new file mode 100644
index 0000000..c7929cb
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+
+public interface IOutputHandler {
+
+    public OutputAnalysis reportEventOutput(Event event, String output);
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.java
new file mode 100644
index 0000000..06a56cf
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+public interface IPatternListener {
+
+    public void eventCompleted(EventTaskReport report);
+
+    public void jobCompleted();
+
+    public void jobFailed(EventTaskReport report);
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java
new file mode 100644
index 0000000..2845ede
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+public class OutputAnalysis {
+
+    private final boolean expected;
+    private final String errorMessage;
+
+    public OutputAnalysis(boolean expected, String errorMessage) {
+        this.expected = expected;
+        this.errorMessage = errorMessage;
+    }
+
+    public boolean isExpected() {
+        return expected;
+    }
+
+    public String getErrorMessage() {
+        return errorMessage;
+    }
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
new file mode 100644
index 0000000..e59e154
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.util.Random;
+import java.util.logging.Logger;
+
+public class Randomizer {
+
+	private static final Logger LOGGER = Logger.getLogger(Randomizer.class
+			.getName());
+	private static Randomizer INSTANCE;
+	private final Random random;
+	private final int seed;
+
+	public static Randomizer getInstance(int seed) {
+		if (INSTANCE == null) {
+			INSTANCE = new Randomizer(seed);
+		}
+		return INSTANCE;
+	}
+
+	public static Randomizer getInstance() {
+		if (INSTANCE == null) {
+			INSTANCE = new Randomizer();
+		}
+		return INSTANCE;
+	}
+
+	private Randomizer() {
+		Random rm = new Random();
+		seed = rm.nextInt(10000);
+		random = new Random(seed);
+		LOGGER.info("SEED:" + seed);
+	}
+
+	private Randomizer(int seed) {
+		this.seed = seed;
+		random = new Random(seed);
+		LOGGER.info("SEED:" + seed);
+	}
+
+	public Random getRandom() {
+		return random;
+	}
+
+	public int getSeed() {
+		return seed;
+	}
+
+	public int getRandomInt(int min, int max) {
+		return min + random.nextInt(max - min + 1);
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
new file mode 100644
index 0000000..8aa5cc5
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+
+public class ValueType {
+
+	public static enum Type {
+		ABS, RANDOM_RANGE, RANDOM_MIN_MAX
+	}
+
+	private Value value;
+	private Type type;
+
+	public ValueType(Value value) {
+		this.value = value;
+		if (value.getAbsvalue() != null) {
+			type = Type.ABS;
+		} else if (value.getRandom() != null) {
+			if (value.getRandom().getMinmax() != null) {
+				type = Type.RANDOM_MIN_MAX;
+			} else if (value.getRandom().getRange() != null) {
+				type = Type.RANDOM_RANGE;
+			} else {
+				throw new IllegalStateException("Incorrect value type");
+			}
+		}
+	}
+
+	public int getMin() {
+		switch (type) {
+		case RANDOM_MIN_MAX:
+			return Integer.parseInt(value.getRandom().getMinmax().getMin());
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public int getMax() {
+		switch (type) {
+		case RANDOM_MIN_MAX:
+			return Integer.parseInt(value.getRandom().getMinmax().getMax());
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String[] getRangeSet() {
+		switch (type) {
+		case RANDOM_RANGE:
+			return value.getRandom().getRange().getSet().split(" ");
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String[] getRangeExcluded() {
+		switch (type) {
+		case RANDOM_RANGE:
+			String exl = value.getRandom().getRange().getExclude();
+			return exl != null ? exl.split(" ") : null;
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String getAbsoluteValue() {
+		switch (type) {
+		case ABS:
+			return value.getAbsvalue();
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public Type getType() {
+		return type;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
new file mode 100644
index 0000000..426279c
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.xml;
+
+public class PatternParser {
+
+	public static void parsePattern(String path){
+		
+	}
+}
+
diff --git a/asterix-events/src/main/resources/events/backup/backup.sh b/asterix-events/src/main/resources/events/backup/backup.sh
new file mode 100755
index 0000000..556ca39
--- /dev/null
+++ b/asterix-events/src/main/resources/events/backup/backup.sh
@@ -0,0 +1,72 @@
+WORKING_DIR=$1
+ASTERIX_INSTANCE_NAME=$2
+ASTERIX_IODEVICES=$3
+NODE_STORE=$4
+ASTERIX_ROOT_METADATA_DIR=$5
+TXN_LOG_DIR_NAME=$6
+BACKUP_ID=$7
+BACKUP_DIR=$8
+BACKUP_TYPE=$9
+NODE_ID=${10}
+
+nodeIODevices=$(echo $ASTERIX_IODEVICES | tr "," "\n")
+
+if [ $BACKUP_TYPE == "hdfs" ];
+then
+  HDFS_URL=${11}
+  HADOOP_VERSION=${12}
+  export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+  index=1
+  for nodeIODevice in $nodeIODevices
+  do
+    STORE_DIR=$nodeIODevice/$NODE_STORE
+    TXN_LOG_DIR=$nodeIODevice/$TXN_LOG_DIR_NAME
+    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/
+   
+    # make the destination directory 
+    $HADOOP_HOME/bin/hadoop fs -mkdir $STORE_DIR $HDFS_URL/$NODE_BACKUP_DIR
+
+    # copy store directory
+    $HADOOP_HOME/bin/hadoop fs -copyFromLocal $STORE_DIR $HDFS_URL/$NODE_BACKUP_DIR/
+
+    # copy asterix root metadata directory and log directory from the primary(first) iodevice
+    if [ $index -eq 1 ];
+    then
+      # copy asterix root metadata directory
+      $HADOOP_HOME/bin/hadoop fs -copyFromLocal $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR $HDFS_URL/$NODE_BACKUP_DIR/
+
+      # copy log directory 
+      $HADOOP_HOME/bin/hadoop fs -copyFromLocal $TXN_LOG_DIR $HDFS_URL/$NODE_BACKUP_DIR/
+    fi
+
+    index=`expr $index + 1`
+  done
+else 
+  index=1
+  for nodeIODevice in $nodeIODevices
+  do
+    STORE_DIR=$nodeIODevice/$NODE_STORE
+    TXN_LOG_DIR=$nodeIODevice/$TXN_LOG_DIR_NAME
+    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID
+
+    # create the backup directory, if it does not exists
+    if [ ! -d $NODE_BACKUP_DIR ];
+    then
+      mkdir -p $NODE_BACKUP_DIR
+    fi
+
+    # copy store directory
+    cp -r $STORE_DIR $NODE_BACKUP_DIR/
+
+    # copy asterix root metadata directory and log directory from the primary(first) iodevice
+    if [ $index -eq 1 ];
+    then
+      cp -r $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR  $NODE_BACKUP_DIR/
+
+      # copy log directory
+      cp -r $TXN_LOG_DIR $NODE_BACKUP_DIR/
+    fi
+
+    index=`expr $index + 1`
+  done
+fi
diff --git a/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh b/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh
new file mode 100755
index 0000000..aa722e5
--- /dev/null
+++ b/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh
@@ -0,0 +1,6 @@
+#kill -9 `ps -ef  | grep hyracks | grep -v grep | cut -d "/" -f1 | tr -s " " | cut -d " " -f2`
+CC_PARENT_ID_INFO=`ps -ef  | grep asterix | grep cc_start | grep -v ssh`
+CC_PARENT_ID=`echo $CC_PARENT_ID_INFO | tr -s " " | cut -d " " -f2`
+CC_ID_INFO=`ps -ef | grep asterix | grep $CC_PARENT_ID | grep -v bash`
+CC_ID=`echo $CC_ID_INFO |  tr -s " " | cut -d " " -f2`
+kill -9 $CC_ID
diff --git a/asterix-events/src/main/resources/events/cc_start/cc_start.sh b/asterix-events/src/main/resources/events/cc_start/cc_start.sh
new file mode 100755
index 0000000..37645bc
--- /dev/null
+++ b/asterix-events/src/main/resources/events/cc_start/cc_start.sh
@@ -0,0 +1,5 @@
+if [ ! -d $LOG_DIR ]; 
+then 
+  mkdir -p $LOG_DIR
+fi
+$ASTERIX_HOME/bin/asterixcc -client-net-ip-address $CLIENT_NET_IP -client-net-port 1098 -cluster-net-ip-address $CLUSTER_NET_IP -cluster-net-port 1099 -http-port 8888  &> $LOG_DIR/cc.log
diff --git a/asterix-events/src/main/resources/events/events.xml b/asterix-events/src/main/resources/events/events.xml
new file mode 100644
index 0000000..f85e3ea1
--- /dev/null
+++ b/asterix-events/src/main/resources/events/events.xml
@@ -0,0 +1,106 @@
+<events xmlns="events">
+  <event>
+    <type>node_join</type>
+    <script>node_join/nc_join.sh</script>
+    <description>Creates a NodeController process at a specified location.</description>
+    <args>location_of_cc location(hostname/ip_address) node_controller_id</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>node_failure</type>
+    <script>node_failure/nc_failure.sh</script>
+    <description>Kills a NodeController process at a specified location.</description>
+    <args>node_controller_id</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>cc_start</type>
+    <script>cc_start/cc_start.sh</script>
+    <description>Starts a  ClusterController process at a specified location.</description>
+    <args></args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>cc_failure</type>
+    <script>cc_failure/cc_failure.sh</script>
+    <description>Kills the Cluster Controller process running at a specified location.</description>
+    <args></args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>node_restart</type>
+    <script>node_restart/nc_restart.sh</script>
+    <description>Shuts and restarts a NodeControllerProcess after a specified time interval, at a specified location</description>
+    <args>address of cc, node controller id and sleep interval(seconds)</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>asterix_deploy</type>
+    <script>asterix_deploy/asterix_deploy.sh</script>
+    <description>Deploys Asterix application on a cluster running hyracks</description>
+    <args>IP address of the node running the hyracks cluster controller</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>zookeeper_start</type>
+    <script>zookeeper/start.sh</script>
+    <description>Launches ZooKeeper server process</description>
+    <args>IP address of the ZooKeeper server</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>zookeeper_stop</type>
+    <script>zookeeper/stop.sh</script>
+    <description>Terminates ZooKeeper server process</description>
+    <args>IP address of the ZooKeeper server</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>file_transfer</type>
+    <script>file/transfer.sh</script>
+    <description>Copies a file on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>directory_transfer</type>
+    <script>file/dir_transfer.sh</script>
+    <description>Copies a directory (and its contents) on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>file_delete</type>
+    <script>file/delete.sh</script>
+    <description>Deletes a file on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>backup</type>
+    <script>backup/backup.sh</script>
+    <description>Takes a backup of an Asterix instance</description>
+    <args>Asterix_data_dir HDFSurl</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>restore</type>
+    <script>restore/restore.sh</script>
+    <description>Restores an Asterix instance from a back up</description>
+    <args>Asterix_data_dir HDFSurl</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>hdfs_delete</type>
+    <script>hdfs/delete.sh</script>
+    <description>Deletes an HDFS path</description>
+    <args>WorkingDir HadoopVersion HDFSUrl Path_to_Delete</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>node_info</type>
+    <script>node_info/node_info.sh</script>
+    <description>Retrieved environment information for a node</description>
+    <daemon>false</daemon>
+  </event>
+</events>
diff --git a/asterix-events/src/main/resources/events/file/delete.sh b/asterix-events/src/main/resources/events/file/delete.sh
new file mode 100755
index 0000000..d5ac3ff
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/delete.sh
@@ -0,0 +1,3 @@
+PATH_TO_DELETE=$1
+echo "rm -rf $PATH_TO_DELETE" >> ~/backup.log
+rm -rf $PATH_TO_DELETE
diff --git a/asterix-events/src/main/resources/events/file/dir_transfer.sh b/asterix-events/src/main/resources/events/file/dir_transfer.sh
new file mode 100755
index 0000000..af7da70
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/dir_transfer.sh
@@ -0,0 +1,7 @@
+USERNAME=$1
+DIR_TO_TRANSFER=$2
+DEST_HOST=$3
+DEST_DIR=$4
+ssh -l $USERNAME $DEST_HOST "mkdir -p $DEST_DIR"
+echo "scp -r $DIR_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/" 
+scp -r $DIR_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/
diff --git a/asterix-events/src/main/resources/events/file/transfer.sh b/asterix-events/src/main/resources/events/file/transfer.sh
new file mode 100755
index 0000000..fbd4554
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/transfer.sh
@@ -0,0 +1,24 @@
+USERNAME=$1
+FILE_TO_TRANSFER=$2
+DEST_HOST=$3
+DEST_DIR=$4
+POST_ACTION=$5
+ssh -l $USERNAME $DEST_HOST "mkdir -p $DEST_DIR"
+echo "scp $FILE_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/" 
+scp $FILE_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/
+if [ $POST_ACTION == "unpack" ]
+ then 
+ filename=`echo ${FILE_TO_TRANSFER##*/}`
+ fileType=`echo ${FILE_TO_TRANSFER##*.}`
+ if [ $fileType == "tar" ]
+ then 
+   echo "ssh -l $USERNAME $DEST_HOST cd $DEST_DIR && tar xf $filename"
+   ssh -l $USERNAME $DEST_HOST "cd $DEST_DIR && tar xf $filename"
+ else if [ $fileType == "zip" ]
+   then
+     echo "ssh -l $USERNAME $DEST_HOST unzip -o -q -d $DEST_DIR $DEST_DIR/$filename"
+     ssh -l $USERNAME $DEST_HOST "unzip -o -q -d $DEST_DIR $DEST_DIR/$filename"
+     ssh -l $USERNAME $DEST_HOST "chmod -R 755  $DEST_DIR"
+   fi 
+ fi
+fi
diff --git a/asterix-events/src/main/resources/events/hdfs/delete.sh b/asterix-events/src/main/resources/events/hdfs/delete.sh
new file mode 100755
index 0000000..6ff54ee
--- /dev/null
+++ b/asterix-events/src/main/resources/events/hdfs/delete.sh
@@ -0,0 +1,7 @@
+WORKING_DIR=$1
+HADOOP_VERSION=$2
+HDFS_URL=$3
+HDFS_PATH=$4
+export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+echo "$HADOOP_HOME/bin/hadoop fs -rmr $HDFS_URL/$HDFS_PATH"
+$HADOOP_HOME/bin/hadoop fs -rmr $HDFS_URL/$HDFS_PATH
diff --git a/asterix-events/src/main/resources/events/node_failure/nc_failure.sh b/asterix-events/src/main/resources/events/node_failure/nc_failure.sh
new file mode 100755
index 0000000..c562bf2
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_failure/nc_failure.sh
@@ -0,0 +1,15 @@
+NC_ID=$1
+
+INFO=`ps -ef | grep nc_join | grep -v grep | grep -v ssh| grep $NC_ID | head -n 1`
+PARENT_ID=`echo  $INFO | cut -d " "  -f2`
+PID_INFO=`ps -ef |  grep asterix | grep -v grep | grep -v nc_join |  grep $PARENT_ID`
+PID=`echo $PID_INFO | cut -d " " -f2`
+kill -15 $PID
+
+cmd_output=$(jps|grep $PID)
+while [ ${#cmd_output} -ne 0 ]
+do
+  sleep 1
+  kill -15 $PID
+  cmd_output=$(jps|grep $PID)
+done
diff --git a/asterix-events/src/main/resources/events/node_info/node_info.sh b/asterix-events/src/main/resources/events/node_info/node_info.sh
new file mode 100755
index 0000000..2179d5a
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_info/node_info.sh
@@ -0,0 +1,2 @@
+JAVA_VERSION=`java -version 2>&1 |awk 'NR==1{ gsub(/"/,""); print $3 }'`
+echo "java_version=$JAVA_VERSION" 1>&2
diff --git a/asterix-events/src/main/resources/events/node_join/nc_join.sh b/asterix-events/src/main/resources/events/node_join/nc_join.sh
new file mode 100755
index 0000000..6b5280b
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_join/nc_join.sh
@@ -0,0 +1,8 @@
+CC_HOST=$1
+NC_ID=$2
+IO_DEVICES=$3
+if [ ! -d $LOG_DIR ]; 
+then 
+  mkdir -p $LOG_DIR
+fi
+$ASTERIX_HOME/bin/asterixnc -node-id $NC_ID -cc-host $CC_HOST -cc-port 1099 -cluster-net-ip-address $IP_LOCATION  -data-ip-address $IP_LOCATION -iodevices $IO_DEVICES -result-ip-address $IP_LOCATION &> $LOG_DIR/${NC_ID}.log
diff --git a/asterix-events/src/main/resources/events/node_restart/nc_restart.sh b/asterix-events/src/main/resources/events/node_restart/nc_restart.sh
new file mode 100755
index 0000000..961ce8d
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_restart/nc_restart.sh
@@ -0,0 +1,21 @@
+CC_HOST=$1
+NC_ID=$2
+SLEEP_TIME=$3
+
+if [ $NC_ID == 'ANY' ]
+then
+  NC_ID="." 
+  PARENT_ID=`ps -ej | tr -s " " | grep nc_join | grep -v grep | grep -v ssh |  cut -d " " -f2 | head -n 1` 
+  PARENT_PROCESS_ENTRY=`ps -ef | grep $PARENT_ID | grep -v grep   | head -n 1`
+  NC_ID=`echo ${PARENT_PROCESS_ENTRY##* }`
+  echo "NCid is $NC_ID" >> ~/try.txt
+else 
+  PARENT_ID=`ps -ej | tr -s " " | grep nc_join | grep -v grep | grep -v ssh | grep $NC_ID | cut -d " " -f2 | head -n 1` 
+fi 
+
+PID=`ps -ej | tr -s " " | grep hyracks | grep -v grep | grep -v nc_join |  grep $PARENT_ID | cut -d " " -f2 | head -n 1`
+kill -9 $PID
+
+sleep $3
+
+$HYRACKS_HOME/hyracks-server/target/hyracks-server-0.2.2-SNAPSHOT-binary-assembly/bin/hyracksnc -node-id $NC_ID -cc-host $CC_HOST -cc-port 1099 -cluster-net-ip-address $IP_LOCATION  -data-ip-address $IP_LOCATION
diff --git a/asterix-events/src/main/resources/events/restore/restore.sh b/asterix-events/src/main/resources/events/restore/restore.sh
new file mode 100755
index 0000000..6396eec
--- /dev/null
+++ b/asterix-events/src/main/resources/events/restore/restore.sh
@@ -0,0 +1,75 @@
+WORKING_DIR=$1
+ASTERIX_INSTANCE_NAME=$2
+ASTERIX_IODEVICES=$3
+NODE_STORE=$4
+ASTERIX_ROOT_METADATA_DIR=$5
+TXN_LOG_DIR_NAME=$6
+BACKUP_ID=$7
+BACKUP_DIR=$8
+BACKUP_TYPE=$9
+NODE_ID=${10}
+HDFS_URL=${11}
+HADOOP_VERSION=${12}
+HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+
+iodevices=$(echo $ASTERIX_IODEVICES | tr "," "\n")
+
+index=1
+for iodevice in $iodevices
+do
+  NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID
+
+  # remove the existing store directory
+  STORE_DIR=$iodevice/$NODE_STORE
+
+  # if STORE_DIR ends with a /, remove it
+  if [ ${STORE_DIR:${#STORE_DIR}-1} == "/" ];
+  then
+    STORE_DIR=${STORE_DIR:0:${#STORE_DIR}-1}
+  fi
+
+  DEST_STORE_DIR=${STORE_DIR%/*}
+  SOURCE_STORE_DIR=${NODE_STORE##*/}
+  rm -rf $DEST_STORE_DIR/$SOURCE_STORE_DIR
+
+  # remove the existing log directory
+  DEST_LOG_DIR=$iodevice/$TXN_LOG_DIR_NAME/
+  rm -rf $DEST_LOG_DIR
+
+  # remove the existing asterix metadata directory
+  rm -rf $iodevice/$ASTERIX_ROOT_METADATA_DIR
+
+  if [ $BACKUP_TYPE == "hdfs" ];
+  then
+      # RESTORE FROM HDFS BACKUP
+
+      # copy store directory
+      $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$SOURCE_STORE_DIR  $DEST_STORE_DIR/ 
+
+      # copy asterix metadata root directory and txn log directory
+      if [ $index -eq 1 ];
+      then
+        $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$ASTERIX_ROOT_METADATA_DIR $iodevice/
+
+        # copy transaction logs directory
+        $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$TXN_LOG_DIR_NAME $iodevice/
+      fi
+
+  else
+
+      # RESTORE FROM LOCAL BACKUP
+      # copy store directory
+      cp  -r $NODE_BACKUP_DIR/$SOURCE_STORE_DIR  $DEST_STORE_DIR/ 
+
+      # copy asterix metadata root directory and txn log directory
+      if [ $index -eq 1 ];
+      then
+        cp -r $NODE_BACKUP_DIR/$ASTERIX_ROOT_METADATA_DIR $iodevice/
+
+        # copy transaction logs directory
+        cp -r $NODE_BACKUP_DIR/$TXN_LOG_DIR_NAME $iodevice/
+      fi
+
+  fi
+  index=`expr $index + 1`
+done
diff --git a/asterix-events/src/main/resources/schema/cluster.xsd b/asterix-events/src/main/resources/schema/cluster.xsd
new file mode 100644
index 0000000..0e1adce
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/cluster.xsd
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cl="cluster" targetNamespace="cluster" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="name" type="xs:string"/>
+<xs:element name="java_opts" type="xs:string"/>
+<xs:element name="logdir" type="xs:string"/>
+<xs:element name="id" type="xs:string"/>
+<xs:element name="client-ip" type="xs:string"/>
+<xs:element name="cluster-ip" type="xs:string"/>
+<xs:element name="key" type="xs:string"/>
+<xs:element name="value" type="xs:string"/>
+<xs:element name="dir" type="xs:string"/>
+<xs:element name="NFS" type="xs:boolean"/>
+<xs:element name="store" type="xs:string"/>
+<xs:element name="iodevices" type="xs:string"/>
+<xs:element name="java_home" type="xs:string"/>
+<xs:element name="username" type="xs:string"/>
+<xs:element name="debug" type="xs:integer"/>
+<xs:element name="debugEnabled" type="xs:boolean"/>
+
+<!-- definition of complex elements -->
+<xs:element name="workingDir">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:dir"/>
+      <xs:element ref="cl:NFS"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="master-node">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:id"/>
+      <xs:element ref="cl:client-ip"/>
+      <xs:element ref="cl:cluster-ip"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:java_opts" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+      <xs:element ref="cl:debug" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="property">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:key"/>
+      <xs:element ref="cl:value"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="env">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:property" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="node">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:id"/>
+      <xs:element ref="cl:cluster-ip"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:java_opts" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+      <xs:element ref="cl:store" minOccurs="0"/>
+      <xs:element ref="cl:iodevices" minOccurs="0"/>
+      <xs:element ref="cl:debug" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="cluster">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:name"/>
+      <xs:element ref="cl:username"/>
+      <xs:element ref="cl:env" minOccurs="0"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:java_opts" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+      <xs:element ref="cl:store" minOccurs="0"/>
+      <xs:element ref="cl:iodevices" minOccurs="0"/>
+      <xs:element ref="cl:workingDir"/>
+      <xs:element ref="cl:debugEnabled" minOccurs="0"/>
+      <xs:element ref="cl:debug" minOccurs="0"/>
+      <xs:element ref="cl:master-node"/>
+      <xs:element ref="cl:node" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/schema/event.xsd b/asterix-events/src/main/resources/schema/event.xsd
new file mode 100644
index 0000000..a233c18
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/event.xsd
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:es="events" targetNamespace="events" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="script" type="xs:string"/>
+<xs:element name="type" type="xs:string"/>
+<xs:element name="description" type="xs:string"/>
+<xs:element name="args" type="xs:string"/>
+<xs:element name="daemon" type="xs:boolean"/>
+
+<!-- definition of complex elements -->
+
+<xs:element name="event">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="es:type"/>
+      <xs:element ref="es:script"/>
+      <xs:element ref="es:description"/>
+      <xs:element ref="es:args"/>
+      <xs:element ref="es:daemon"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="events">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="es:event" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+ 
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/schema/jaxb-bindings.xjb b/asterix-events/src/main/resources/schema/jaxb-bindings.xjb
new file mode 100644
index 0000000..b5982e0
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/jaxb-bindings.xjb
@@ -0,0 +1,9 @@
+<jxb:bindings version="1.0"
+xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
+xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+<jxb:globalBindings>
+  <jxb:serializable uid="1"/>
+</jxb:globalBindings>
+
+</jxb:bindings>
diff --git a/asterix-events/src/main/resources/schema/pattern.xsd b/asterix-events/src/main/resources/schema/pattern.xsd
new file mode 100644
index 0000000..4eee880
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/pattern.xsd
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:eg="patterns" targetNamespace="patterns">
+
+
+<!-- definition of simple types --> 
+<xs:element name="maxOccurs" type = "xs:int"/> 
+<xs:element name="pargs" type="xs:string"/>
+<xs:element name="absvalue" type="xs:string"/>
+<xs:element name="unit" type="xs:string"/>
+<xs:element name="type" type="xs:string"/>
+<xs:element name="min" type="xs:string"/>
+<xs:element name="max" type="xs:string"/>
+<xs:element name="abs" type="xs:string"/>
+<xs:element name="set" type="xs:string"/>
+<xs:element name="exclude" type="xs:string"/>
+<xs:element name="reuse" type="xs:boolean"/>
+<!-- definition of attributes -->
+
+<!-- definition of complex elements -->
+
+<xs:element name="range">
+  <xs:complexType>
+    <xs:sequence>
+     <xs:element ref="eg:set"/>
+     <xs:element ref="eg:exclude" minOccurs="0"/>
+     <xs:element ref="eg:reuse" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="minmax">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:min"/>
+      <xs:element ref="eg:max"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+
+<xs:element name="random">
+  <xs:complexType>
+    <xs:sequence>
+       <xs:element ref="eg:minmax" minOccurs="0"/>
+       <xs:element ref="eg:range" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="value">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:random" minOccurs="0"/>
+      <xs:element ref="eg:absvalue" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="nodeid">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:value"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="period">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:absvalue"/>
+      <xs:element ref="eg:unit"/>
+    </xs:sequence>   
+  </xs:complexType>
+</xs:element>    
+
+<xs:element name="delay">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:value"/>
+      <xs:element ref="eg:unit"/>
+    </xs:sequence>   
+  </xs:complexType>
+</xs:element>    
+
+<xs:element name="event">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:type"/>
+      <xs:element ref="eg:nodeid"/>
+      <xs:element ref="eg:pargs"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+ 
+<xs:element name="pattern">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:delay"/>
+      <xs:element ref="eg:maxOccurs" maxOccurs="1" minOccurs="0"/>
+      <xs:element ref="eg:period"/>
+      <xs:element ref="eg:event"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="patterns">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:pattern" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/scripts/execute.sh b/asterix-events/src/main/resources/scripts/execute.sh
new file mode 100755
index 0000000..30f6c2f
--- /dev/null
+++ b/asterix-events/src/main/resources/scripts/execute.sh
@@ -0,0 +1,27 @@
+USERNAME=$1
+if [ ! -d $MANAGIX_HOME/logs ];
+then
+   mkdir -p $MANAGIX_HOME/logs
+fi
+LOGDIR=$MANAGIX_HOME/logs
+if [ $DAEMON == "false" ]; then 
+  if [ -z $USERNAME ]
+  then
+    cmd_output=$(ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS" >> $LOGDIR/execute.log
+    echo "$cmd_output"
+  else
+    echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS" >> $LOGDIR/execute.log
+    cmd_output=$(ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "$cmd_output"
+  fi  
+else 
+  if [ -z $USERNAME ];
+  then
+     echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS &" >> $LOGDIR/execute.log
+     ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  else
+     echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS &" >> $LOGDIR/execute.log
+     ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  fi   
+fi
diff --git a/asterix-app/src/test/resources/aqljts/ignore.txt b/asterix-events/src/main/resources/scripts/prepare.sh
old mode 100644
new mode 100755
similarity index 100%
copy from asterix-app/src/test/resources/aqljts/ignore.txt
copy to asterix-events/src/main/resources/scripts/prepare.sh
diff --git a/asterix-external-data/pom.xml b/asterix-external-data/pom.xml
index 9473ce9..f54f1c2 100644
--- a/asterix-external-data/pom.xml
+++ b/asterix-external-data/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-external-data</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -52,14 +52,12 @@
 				<artifactId>maven-surefire-plugin</artifactId>
 				<version>2.7.2</version>
 				<configuration>
-					<!--
-						doesn't work from m2eclipse, currently
-						<additionalClasspathElements>
-						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement>
-						</additionalClasspathElements>
-					-->
+					<!-- doesn't work from m2eclipse, currently <additionalClasspathElements> 
+						<additionalClasspathElement>${basedir}/src/main/resources</additionalClasspathElement> 
+						</additionalClasspathElements> -->
 					<forkMode>pertest</forkMode>
-					<argLine>-enableassertions -Xmx${test.heap.size}m -Dfile.encoding=UTF-8
+					<argLine>-enableassertions -Xmx${test.heap.size}m
+						-Dfile.encoding=UTF-8
 						-Djava.util.logging.config.file=src/test/resources/logging.properties</argLine>
 					<includes>
 						<include>**/*TestSuite.java</include>
@@ -85,18 +83,6 @@
 			<scope>test</scope>
 		</dependency>
 		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-om</artifactId>
 			<version>0.0.4-SNAPSHOT</version>
@@ -116,35 +102,39 @@
 			<version>1.3.1-201002241208</version>
 			<scope>test</scope>
 		</dependency>
-                <dependency>
-                        <groupId>org.twitter4j</groupId>
-                        <artifactId>twitter4j-core</artifactId>
-                        <version>2.2.3</version>
-                </dependency>
-                <dependency>
-                        <groupId>org.apache.hadoop</groupId>
-                        <artifactId>hadoop-core</artifactId>
-                        <version>0.20.2</version>
-                        <type>jar</type>
-                        <scope>compile</scope>
-                </dependency>
-                <dependency>
-                        <groupId>net.java.dev.rome</groupId>
-                        <artifactId>rome-fetcher</artifactId>
-                        <version>1.0.0</version>
-                        <type>jar</type>
-                        <scope>compile</scope>
-                </dependency>
-                <dependency>
-                         <groupId>rome</groupId>
-                         <artifactId>rome</artifactId>
-                         <version>1.0.1-modified-01</version>
-                </dependency>
-<dependency>
-            <groupId>jdom</groupId>
-            <artifactId>jdom</artifactId>
-            <version>1.0</version>
-        </dependency>
+		<dependency>
+			<groupId>org.twitter4j</groupId>
+			<artifactId>twitter4j-core</artifactId>
+			<version>2.2.3</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-core</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>net.java.dev.rome</groupId>
+			<artifactId>rome-fetcher</artifactId>
+			<version>1.0.0</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>rome</groupId>
+			<artifactId>rome</artifactId>
+			<version>1.0.1-modified-01</version>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-dataflow-hadoop</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>jdom</groupId>
+			<artifactId>jdom</artifactId>
+			<version>1.0</version>
+		</dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/AbstractDataListeningProperty.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/AbstractDataListeningProperty.java
deleted file mode 100644
index 88ce33c..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/AbstractDataListeningProperty.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.datasource.data.listener;
-
-/**
- * A push-based datasource adapter allows registering a IDataListener instance.
- * Data listening property defines when data is pushed to a IDataListener.
- */
-
-public abstract class AbstractDataListeningProperty {
-
-    /**
-     * COUNT_BASED: Data is pushed to a data listener only if the count of
-     * records exceeds the configured threshold value. TIME_BASED: Data is
-     * pushed to a data listener in a periodic manner at the end of each time
-     * interval.
-     */
-    public enum listeningPropertyType {
-        COUNT_BASED,
-        TIME_BASED
-    }
-
-    public abstract listeningPropertyType getListeningPropretyType();
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/CountBasedDataListeningProperty.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/CountBasedDataListeningProperty.java
deleted file mode 100644
index 0eb42dc..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/CountBasedDataListeningProperty.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.datasource.data.listener;
-
-/**
- * A data listening property chosen by a data listener when it wants data to be
- * pushed when the count of records collected by the adapter exceeds a confiured
- * count value.
- */
-public class CountBasedDataListeningProperty extends AbstractDataListeningProperty {
-
-    int numTuples;
-
-    public int getNumTuples() {
-        return numTuples;
-    }
-
-    public void setNumTuples(int numTuples) {
-        this.numTuples = numTuples;
-    }
-
-    public CountBasedDataListeningProperty(int numTuples) {
-        this.numTuples = numTuples;
-    }
-
-    @Override
-    public listeningPropertyType getListeningPropretyType() {
-        return listeningPropertyType.COUNT_BASED;
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/IDataListener.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/IDataListener.java
deleted file mode 100644
index 269f060..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/IDataListener.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.datasource.data.listener;
-
-import java.nio.ByteBuffer;
-
-/**
- * An interface providing a call back API for a subscriber interested in data
- * received from an external data source via the datasource adapter.
- */
-public interface IDataListener {
-
-    /**
-     * This method is a call back API and is invoked by an instance of
-     * IPushBasedDatasourceReadAdapter. The caller passes a frame containing new
-     * data. The protocol as to when the caller shall invoke this method is
-     * decided by the configured @see DataListenerProperty .
-     * 
-     * @param aObjects
-     */
-
-    public void dataReceived(ByteBuffer frame);
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/TimeBasedDataListeningProperty.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/TimeBasedDataListeningProperty.java
deleted file mode 100644
index a11cf94..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/datasource/data/listener/TimeBasedDataListeningProperty.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.datasource.data.listener;
-
-/**
- * A data listening property chosen by a data listener when it needs data to be
- * pushed in a periodic manner with a configured time-interval.
- */
-public class TimeBasedDataListeningProperty extends AbstractDataListeningProperty {
-
-    // time interval in secs
-    int interval;
-
-    public int getInteval() {
-        return interval;
-    }
-
-    public void setInterval(int interval) {
-        this.interval = interval;
-    }
-
-    public TimeBasedDataListeningProperty(int interval) {
-        this.interval = interval;
-    }
-
-    @Override
-    public listeningPropertyType getListeningPropretyType() {
-        return listeningPropertyType.TIME_BASED;
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java
new file mode 100644
index 0000000..f1f5884
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/CNNFeedAdapterFactory.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.CNNFeedAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+
+/**
+ * A factory class for creating the @see {CNNFeedAdapter}.  
+ */
+public class CNNFeedAdapterFactory implements ITypedDatasetAdapterFactory {
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration) throws Exception {
+        CNNFeedAdapter cnnFeedAdapter = new CNNFeedAdapter();
+        cnnFeedAdapter.configure(configuration);
+        return cnnFeedAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return "cnn_feed";
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java
new file mode 100644
index 0000000..6fcb710
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HDFSAdapterFactory.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * A factory class for creating an instance of HDFSAdapter
+ */
+public class HDFSAdapterFactory implements IGenericDatasetAdapterFactory {
+
+    public static final String HDFS_ADAPTER_NAME = "hdfs";
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration, IAType atype) throws Exception {
+        HDFSAdapter hdfsAdapter = new HDFSAdapter(atype);
+        hdfsAdapter.configure(configuration);
+        return hdfsAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return HDFS_ADAPTER_NAME;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java
new file mode 100644
index 0000000..5e28eed
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/HiveAdapterFactory.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.HiveAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * A factory class for creating an instance of HiveAdapter
+ */
+public class HiveAdapterFactory implements IGenericDatasetAdapterFactory {
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration, IAType type) throws Exception {
+        HiveAdapter hiveAdapter = new HiveAdapter(type);
+        hiveAdapter.configure(configuration);
+        return hiveAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return "hive";
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java
new file mode 100644
index 0000000..45fd6cf
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IAdapterFactory.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+/**
+ * Base interface for IGenericDatasetAdapterFactory and ITypedDatasetAdapterFactory.
+ * Acts as a marker interface indicating that the implementation provides functionality
+ * for creating an adapter.
+ */
+public interface IAdapterFactory {
+
+    /**
+     * Returns the display name corresponding to the Adapter type that is created by the factory.
+     * 
+     * @return the display name
+     */
+    public String getName();
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java
new file mode 100644
index 0000000..093a3dd
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/IGenericDatasetAdapterFactory.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * A base interface for an adapter factory that creates instance of an adapter kind that
+ * is 'generic' in nature. A 'typed' adapter returns records with a configurable datatype.
+ */
+public interface IGenericDatasetAdapterFactory extends IAdapterFactory {
+
+    public static final String KEY_TYPE_NAME = "output-type-name";
+
+    /**
+     * Creates an instance of IDatasourceAdapter.
+     * 
+     * @param configuration
+     *            The configuration parameters for the adapter that is instantiated.
+     *            The passed-in configuration is used to configure the created instance of the adapter.
+     * @param atype
+     *            The type for the ADM records that are returned by the adapter.
+     * @return An instance of IDatasourceAdapter.
+     * @throws Exception
+     */
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration, IAType atype) throws Exception;
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java
new file mode 100644
index 0000000..0f9978e
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/ITypedDatasetAdapterFactory.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+
+/**
+ * A base interface for an adapter factory that creates instance of an adapter kind that
+ * is 'typed' in nature. A 'typed' adapter returns records with a pre-defined datatype.
+ */
+public interface ITypedDatasetAdapterFactory extends IAdapterFactory {
+
+    /**
+     * Creates an instance of IDatasourceAdapter.
+     * 
+     * @param configuration
+     *            The configuration parameters for the adapter that is instantiated.
+     *            The passed-in configuration is used to configure the created instance of the adapter.
+     * @return An instance of IDatasourceAdapter.
+     * @throws Exception
+     */
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration) throws Exception;
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java
new file mode 100644
index 0000000..2040949
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/NCFileSystemAdapterFactory.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * Factory class for creating an instance of NCFileSystemAdapter. An
+ * NCFileSystemAdapter reads external data residing on the local file system of
+ * an NC.
+ */
+public class NCFileSystemAdapterFactory implements IGenericDatasetAdapterFactory {
+
+    public static final String NC_FILE_SYSTEM_ADAPTER_NAME = "localfs";
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration, IAType atype) throws Exception {
+        NCFileSystemAdapter fsAdapter = new NCFileSystemAdapter(atype);
+        fsAdapter.configure(configuration);
+        return fsAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return NC_FILE_SYSTEM_ADAPTER_NAME;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java
new file mode 100644
index 0000000..bc00469
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/PullBasedTwitterAdapterFactory.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.PullBasedTwitterAdapter;
+
+/**
+ * Factory class for creating an instance of PullBasedTwitterAdapter.
+ * This adapter provides the functionality of fetching tweets from Twitter service
+ * via pull-based Twitter API.
+ */
+public class PullBasedTwitterAdapterFactory implements ITypedDatasetAdapterFactory {
+
+    public static final String PULL_BASED_TWITTER_ADAPTER_NAME = "pull_twitter";
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration) throws Exception {
+        PullBasedTwitterAdapter twitterAdapter = new PullBasedTwitterAdapter();
+        twitterAdapter.configure(configuration);
+        return twitterAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return PULL_BASED_TWITTER_ADAPTER_NAME;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java
new file mode 100644
index 0000000..bbbea38
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/adapter/factory/RSSFeedAdapterFactory.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.adapter.factory;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.RSSFeedAdapter;
+
+/**
+ * Factory class for creating an instance of @see {RSSFeedAdapter}.
+ * RSSFeedAdapter provides the functionality of fetching an RSS based feed.
+ */
+public class RSSFeedAdapterFactory implements ITypedDatasetAdapterFactory {
+
+    public static final String RSS_FEED_ADAPTER_NAME = "rss_feed";
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration) throws Exception {
+        RSSFeedAdapter rssFeedAdapter = new RSSFeedAdapter();
+        rssFeedAdapter.configure(configuration);
+        return rssFeedAdapter;
+    }
+
+    @Override
+    public String getName() {
+        return "rss_feed";
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceAdapter.java
deleted file mode 100644
index 1baf149..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceAdapter.java
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.adapter.api;
-
-import java.io.Serializable;
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-
-/**
- * A super interface implemented by a data source adapter. An adapter can be a
- * pull based or push based. This interface provides all common APIs that need
- * to be implemented by each adapter irrespective of the the kind of
- * adapter(pull or push).
- */
-public interface IDatasourceAdapter extends Serializable {
-
-    /**
-     * Represents the kind of data exchange that happens between the adapter and
-     * the external data source. The data exchange can be either pull based or
-     * push based. In the former case (pull), the request for data transfer is
-     * initiated by the adapter. In the latter case (push) the adapter is
-     * required to submit an initial request to convey intent for data.
-     * Subsequently all data transfer requests are initiated by the external
-     * data source.
-     */
-    public enum AdapterDataFlowType {
-        PULL,
-        PUSH
-    }
-
-    /**
-     * An adapter can be used to read from an external data source and may also
-     * allow writing to the external data source. This enum type indicates the
-     * kind of operations supported by the adapter.
-     * 
-     * @caller Compiler uses this method to assert the validity of an operation
-     *         on an external dataset. The type of adapter associated with an
-     *         external dataset determines the set of valid operations allowed
-     *         on the dataset.
-     */
-    public enum AdapterType {
-        READ,
-        WRITE,
-        READ_WRITE
-    }
-
-    /**
-     * An adapter can be a pull or a push based adapter. This method returns the
-     * kind of adapter, that is whether it is a pull based adapter or a push
-     * based adapter.
-     * 
-     * @caller Compiler or wrapper operator: Compiler uses this API to choose
-     *         the right wrapper (push-based) operator that wraps around the
-     *         adapter and provides an iterator interface. If we decide to form
-     *         a single operator that handles both pull and push based adapter
-     *         kinds, then this method will be used by the wrapper operator for
-     *         switching between the logic for interacting with a pull based
-     *         adapter versus a push based adapter.
-     * @return AdapterDataFlowType
-     */
-    public AdapterDataFlowType getAdapterDataFlowType();
-
-    /**
-     * Returns the type of adapter indicating if the adapter can be used for
-     * reading from an external data source or writing to an external data
-     * source or can be used for both purposes.
-     * 
-     * @Caller: Compiler: The compiler uses this API to verify if an operation
-     *          is supported by the adapter. For example, an write query against
-     *          an external dataset will not compile successfully if the
-     *          external dataset was declared with a read_only adapter.
-     * @see AdapterType
-     * @return
-     */
-    public AdapterType getAdapterType();
-
-    /**
-     * Each adapter instance is configured with a set of parameters that are
-     * key-value pairs. When creating an external or a feed dataset, an adapter
-     * instance is used in conjunction with a set of configuration parameters
-     * for the adapter instance. The configuration parameters are stored
-     * internally with the adapter and can be retrieved using this API.
-     * 
-     * @param propertyKey
-     * @return String the value corresponding to the configuration parameter
-     *         represented by the key- attributeKey.
-     */
-    public String getAdapterProperty(String propertyKey);
-
-    /**
-     * Allows setting a configuration property of the adapter with a specified
-     * value.
-     * 
-     * @caller Used by the wrapper operator to modify the behavior of the
-     *         adapter, if required.
-     * @param property
-     *            the property to be set
-     * @param value
-     *            the value for the property
-     */
-    public void setAdapterProperty(String property, String value);
-
-    /**
-     * Configures the IDatasourceAdapter instance.
-     * 
-     * @caller Scenario 1) Called during compilation of DDL statement that
-     *         creates a Feed dataset and associates the adapter with the
-     *         dataset. The (key,value) configuration parameters provided as
-     *         part of the DDL statement are collected by the compiler and
-     *         passed on to this method. The adapter may as part of
-     *         configuration connect with the external data source and determine
-     *         the IAType associated with data residing with the external
-     *         datasource.
-     *         Scenario 2) An adapter instance is created by an ASTERIX operator
-     *         that wraps around the adapter instance. The operator, as part of
-     *         its initialization invokes the configure method. The (key,value)
-     *         configuration parameters are passed on to the operator by the
-     *         compiler. Subsequent to the invocation, the wrapping operator
-     *         obtains the partition constraints (if any). In addition, in the
-     *         case of a read adapter, the wrapping operator obtains the output
-     *         ASTERIX type associated with the data that will be output from
-     *         the adapter.
-     * @param arguments
-     *            A map with key-value pairs that contains the configuration
-     *            parameters for the adapter. The arguments are obtained from
-     *            the metadata. Recall that the DDL to create an external
-     *            dataset or a feed dataset requires using an adapter and
-     *            providing all arguments as a set of (key,value) pairs. These
-     *            arguments are put into the metadata.
-     */
-    public void configure(Map<String, String> arguments, IAType atype) throws Exception;
-
-    /**
-     * Returns a list of partition constraints. A partition constraint can be a
-     * requirement to execute at a particular location or could be cardinality
-     * constraints indicating the number of instances that need to run in
-     * parallel. example, a IDatasourceAdapter implementation written for data
-     * residing on the local file system of a node cannot run on any other node
-     * and thus has a location partition constraint. The location partition
-     * constraint can be expressed as a node IP address or a node controller id.
-     * In the former case, the IP address is translated to a node controller id
-     * running on the node with the given IP address.
-     * 
-     * @Caller The wrapper operator configures its partition constraints from
-     *         the constraints obtained from the adapter.
-     */
-    public AlgebricksPartitionConstraint getPartitionConstraint();
-
-    /**
-     * Allows the adapter to establish connection with the external data source
-     * expressing intent for data and providing any configuration parameters
-     * required by the external data source for the transfer of data. This
-     * method does not result in any data transfer, but is a prerequisite for
-     * any subsequent data transfer to happen between the external data source
-     * and the adapter.
-     * 
-     * @caller This method is called by the wrapping ASTERIX operator that
-     * @param ctx
-     * @throws Exception
-     */
-    public void initialize(IHyracksTaskContext ctx) throws Exception;
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceReadAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceReadAdapter.java
deleted file mode 100644
index 737dde0..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceReadAdapter.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.adapter.api;
-
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-
-public interface IDatasourceReadAdapter extends IDatasourceAdapter {
-
-	/**
-	 * Retrieves data from an external datasource, packs it in frames and uses a
-	 * frame writer to flush the frames to a recipient operator.
-	 * 
-	 * @param partition
-	 *            Multiple instances of the adapter can be configured to
-	 *            retrieve data in parallel. Partition is an integer between 0
-	 *            to N-1 where N is the number of parallel adapter instances.
-	 *            The partition value helps configure a particular instance of
-	 *            the adapter to fetch data.
-	 * @param writer
-	 *            An instance of IFrameWriter that is used to flush frames to
-	 *            the recipient operator
-	 * @throws Exception
-	 */
-	
-	public IDataParser getDataParser(int partition) throws Exception;
-	
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceWriteAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceWriteAdapter.java
deleted file mode 100644
index 3cd1464..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/adapter/api/IDatasourceWriteAdapter.java
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.adapter.api;
-
-import java.nio.ByteBuffer;
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.IAType;
-
-public interface IDatasourceWriteAdapter extends IDatasourceAdapter {
-
-    /**
-     * Flushes tuples contained in the frame to the dataset stored in an
-     * external data source. If required, the content of the frame is converted
-     * into an appropriate format as required by the external data source.
-     * 
-     * @caller This method is invoked by the wrapping ASTERIX operator when data
-     *         needs to be written to the external data source.
-     * @param sourceAType
-     *            The type associated with the data that is required to be
-     *            written
-     * @param frame
-     *            the frame that needs to be flushed
-     * @param datasourceSpecificParams
-     *            A map containing other parameters that are specific to the
-     *            target data source where data is to be written. For example
-     *            when writing to a data source such as HDFS, an optional
-     *            parameter is the replication factor.
-     * @throws Exception
-     */
-    public void flush(IAType sourceAType, ByteBuffer frame, Map<String, String> datasourceSpecificParams)
-            throws Exception;
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java
index cf0d4f3..fb4cc99 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/ExternalDataScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,66 +16,100 @@
 
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
+import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+import edu.uci.ics.hyracks.api.constraints.IConstraintAcceptor;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
 import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.job.IOperatorEnvironment;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
 
-public class ExternalDataScanOperatorDescriptor extends
-		AbstractSingleActivityOperatorDescriptor {
-	private static final long serialVersionUID = 1L;
+/*
+ * A single activity operator that provides the functionality of scanning data using an
+ * instance of the configured adapter.
+ */
+public class ExternalDataScanOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
 
-	private final String adapter;
-	private final Map<String, String> adapterConfiguration;
-	private final IAType atype;
+    private static final long serialVersionUID = 1L;
 
-	private transient IDatasourceReadAdapter datasourceReadAdapter;
+    private final String adapterFactory;
+    private final Map<String, String> adapterConfiguration;
+    private final IAType atype;
+    private IGenericDatasetAdapterFactory datasourceAdapterFactory;
 
-	public ExternalDataScanOperatorDescriptor(JobSpecification spec,
-			String adapter, Map<String, String> arguments, IAType atype,
-			RecordDescriptor rDesc) {
-		super(spec, 0, 1);
-		recordDescriptors[0] = rDesc;
-		this.adapter = adapter;
-		this.adapterConfiguration = arguments;
-		this.atype = atype;
-	}
+    public ExternalDataScanOperatorDescriptor(JobSpecification spec, String adapter, Map<String, String> arguments,
+            IAType atype, RecordDescriptor rDesc) {
+        super(spec, 0, 1);
+        recordDescriptors[0] = rDesc;
+        this.adapterFactory = adapter;
+        this.adapterConfiguration = arguments;
+        this.atype = atype;
+    }
 
-	public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
-			IRecordDescriptorProvider recordDescProvider, final int partition,
-			int nPartitions) throws HyracksDataException {
+    @Override
+    public void contributeSchedulingConstraints(IConstraintAcceptor constraintAcceptor, ICCApplicationContext appCtx) {
 
-		try {
-			datasourceReadAdapter = (IDatasourceReadAdapter) Class.forName(
-					adapter).newInstance();
-			datasourceReadAdapter.configure(adapterConfiguration, atype);
-			datasourceReadAdapter.initialize(ctx);
-		} catch (Exception e) {
-			throw new HyracksDataException("initialization of adapter failed",
-					e);
-		}
-		return new AbstractUnaryOutputSourceOperatorNodePushable() {
-			@Override
-			public void initialize() throws HyracksDataException {
-				writer.open();
-				try {
-					datasourceReadAdapter.getDataParser(partition)
-							.parse(writer);
-				} catch (Exception e) {
-					throw new HyracksDataException(
-							"exception during reading from external data source",
-							e);
-				} finally {
-					writer.close();
-				}
-			}
-		};
-	}
+        /*
+        Comment: The following code is commented out. This is because constraints are being set at compile time so that they can 
+        be propagated to upstream Asterix operators. Hyracks has to provide a way to propagate constraints to upstream operators.
+        Once it is there, we will uncomment the following code.  
+        
+        AlgebricksPartitionConstraint constraint = datasourceReadAdapter.getPartitionConstraint();
+        switch (constraint.getPartitionConstraintType()) {
+            case ABSOLUTE:
+                String[] locations = ((AlgebricksAbsolutePartitionConstraint) constraint).getLocations();
+                for (int i = 0; i < locations.length; ++i) {
+                    constraintAcceptor.addConstraint(new Constraint(new PartitionLocationExpression(this.odId, i),
+                            new ConstantExpression(locations[i])));
+                }
+                constraintAcceptor.addConstraint(new Constraint(new PartitionCountExpression(this.odId),
+                        new ConstantExpression(locations.length)));
+
+                break;
+            case COUNT:
+                constraintAcceptor.addConstraint(new Constraint(new PartitionCountExpression(this.odId),
+                        new ConstantExpression(((AlgebricksCountPartitionConstraint) constraint).getCount())));
+                break;
+            default:
+                throw new IllegalStateException(" Constraint type :" + constraint.getPartitionConstraintType()
+                        + " not supported");
+
+        }*/
+
+    }
+
+    @Override
+    public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
+            IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions)
+            throws HyracksDataException {
+        try {
+            datasourceAdapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactory).newInstance();
+        } catch (Exception e) {
+            throw new HyracksDataException("initialization of adapter failed", e);
+        }
+        return new AbstractUnaryOutputSourceOperatorNodePushable() {
+            @Override
+            public void initialize() throws HyracksDataException {
+                writer.open();
+                IDatasourceAdapter adapter = null;
+                try {
+                    adapter = ((IGenericDatasetAdapterFactory) datasourceAdapterFactory).createAdapter(
+                            adapterConfiguration, atype);
+                    adapter.initialize(ctx);
+                    adapter.start(partition, writer);
+                } catch (Exception e) {
+                    throw new HyracksDataException("exception during reading from external data source", e);
+                } finally {
+                    writer.close();
+                }
+            }
+        };
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java
new file mode 100644
index 0000000..2da4e76
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorDescriptor.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.data.operator;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.ITypedDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
+import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+
+/**
+ * Operator responsible for ingesting data from an external source. This
+ * operator uses a (configurable) adapter associated with the feed dataset.
+ */
+public class FeedIntakeOperatorDescriptor extends
+		AbstractSingleActivityOperatorDescriptor {
+
+	private static final long serialVersionUID = 1L;
+
+	private final String adapterFactoryClassName;
+	private final Map<String, String> adapterConfiguration;
+	private final IAType atype;
+	private final FeedId feedId;
+
+	private transient IAdapterFactory datasourceAdapterFactory;
+
+	public FeedIntakeOperatorDescriptor(JobSpecification spec, FeedId feedId,
+			String adapter, Map<String, String> arguments, ARecordType atype,
+			RecordDescriptor rDesc) {
+		super(spec, 1, 1);
+		recordDescriptors[0] = rDesc;
+		this.adapterFactoryClassName = adapter;
+		this.adapterConfiguration = arguments;
+		this.atype = atype;
+		this.feedId = feedId;
+	}
+
+	public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
+			IRecordDescriptorProvider recordDescProvider, final int partition,
+			int nPartitions) throws HyracksDataException {
+		ITypedDatasourceAdapter adapter;
+		try {
+			datasourceAdapterFactory = (IAdapterFactory) Class.forName(
+					adapterFactoryClassName).newInstance();
+			if (datasourceAdapterFactory instanceof IGenericDatasetAdapterFactory) {
+				adapter = (ITypedDatasourceAdapter) ((IGenericDatasetAdapterFactory) datasourceAdapterFactory)
+						.createAdapter(adapterConfiguration, atype);
+			} else if (datasourceAdapterFactory instanceof ITypedDatasetAdapterFactory) {
+				adapter = (ITypedDatasourceAdapter) ((ITypedDatasetAdapterFactory) datasourceAdapterFactory)
+						.createAdapter(adapterConfiguration);
+			} else {
+				throw new IllegalStateException(
+						" Unknown adapter factory type for "
+								+ adapterFactoryClassName);
+			}
+			adapter.initialize(ctx);
+		} catch (Exception e) {
+			throw new HyracksDataException("initialization of adapter failed",
+					e);
+		}
+		return new FeedIntakeOperatorNodePushable(feedId, adapter, partition);
+	}
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java
new file mode 100644
index 0000000..d0dbb98
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedIntakeOperatorNodePushable.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.data.operator;
+
+import java.nio.ByteBuffer;
+import java.util.concurrent.LinkedBlockingQueue;
+
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.feed.lifecycle.AlterFeedMessage;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedManager;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedManager;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
+import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
+
+/**
+ * The runtime for @see{FeedIntakeOperationDescriptor}
+ */
+public class FeedIntakeOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
+
+    private final IDatasourceAdapter adapter;
+    private final int partition;
+    private final IFeedManager feedManager;
+    private final FeedId feedId;
+    private final LinkedBlockingQueue<IFeedMessage> inbox;
+    private FeedInboxMonitor feedInboxMonitor;
+
+    public FeedIntakeOperatorNodePushable(FeedId feedId, IDatasourceAdapter adapter, int partition) {
+        this.adapter = adapter;
+        this.partition = partition;
+        this.feedManager = (IFeedManager) FeedManager.INSTANCE;
+        this.feedId = feedId;
+        inbox = new LinkedBlockingQueue<IFeedMessage>();
+    }
+
+    @Override
+    public void open() throws HyracksDataException {
+        if (adapter instanceof IManagedFeedAdapter) {
+            feedInboxMonitor = new FeedInboxMonitor((IManagedFeedAdapter) adapter, inbox, partition);
+            feedInboxMonitor.start();
+            feedManager.registerFeedMsgQueue(feedId, inbox);
+        }
+        writer.open();
+        try {
+            adapter.start(partition, writer);
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new HyracksDataException(e);
+            /* 
+             we do not throw an exception, but allow the operator to close
+             gracefully throwing an exception here would result in a job abort and a
+             transaction roll back that undoes all the work done so far.
+             */
+
+        } finally {
+            writer.close();
+            if (adapter instanceof IManagedFeedAdapter) {
+                feedManager.unregisterFeedMsgQueue(feedId, inbox);
+            }
+        }
+    }
+
+    @Override
+    public void fail() throws HyracksDataException {
+        writer.close();
+    }
+
+    @Override
+    public void close() throws HyracksDataException {
+        
+    }
+
+    @Override
+    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
+        // do nothing
+    }
+}
+
+class FeedInboxMonitor extends Thread {
+
+    private LinkedBlockingQueue<IFeedMessage> inbox;
+    private final IManagedFeedAdapter adapter;
+
+    public FeedInboxMonitor(IManagedFeedAdapter adapter, LinkedBlockingQueue<IFeedMessage> inbox, int partition) {
+        this.inbox = inbox;
+        this.adapter = adapter;
+    }
+
+    @Override
+    public void run() {
+        while (true) {
+            try {
+                IFeedMessage feedMessage = inbox.take();
+                switch (feedMessage.getMessageType()) {
+                    case STOP:
+                        adapter.stop();
+                        break;
+                    case ALTER:
+                        adapter.alter(((AlterFeedMessage) feedMessage).getAlteredConfParams());
+                        break;
+                }
+            } catch (InterruptedException ie) {
+                break;
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java
new file mode 100644
index 0000000..d0dc5ca
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorDescriptor.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.data.operator;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
+import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+
+/**
+ * Sends a control message to the registered message queue for feed specified by its feedId.
+ */
+public class FeedMessageOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private final FeedId feedId;
+    private final List<IFeedMessage> feedMessages;
+    private final boolean sendToAll = true;
+
+    public FeedMessageOperatorDescriptor(JobSpecification spec, String dataverse, String dataset,
+            List<IFeedMessage> feedMessages) {
+        super(spec, 0, 1);
+        this.feedId = new FeedId(dataverse, dataset);
+        this.feedMessages = feedMessages;
+    }
+
+    @Override
+    public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
+            IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) throws HyracksDataException {
+        return new FeedMessageOperatorNodePushable(ctx, feedId, feedMessages, sendToAll, partition, nPartitions);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java
new file mode 100644
index 0000000..d03eeaa
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/operator/FeedMessageOperatorNodePushable.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.data.operator;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedManager;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedManager;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
+
+/**
+ * Runtime for the @see{FeedMessageOperatorDescriptor}
+ */
+public class FeedMessageOperatorNodePushable extends AbstractUnaryOutputSourceOperatorNodePushable {
+
+    private final FeedId feedId;
+    private final List<IFeedMessage> feedMessages;
+    private IFeedManager feedManager;
+
+    public FeedMessageOperatorNodePushable(IHyracksTaskContext ctx, FeedId feedId, List<IFeedMessage> feedMessages,
+            boolean applyToAll, int partition, int nPartitions) {
+        this.feedId = feedId;
+        if (applyToAll) {
+            this.feedMessages = feedMessages;
+        } else {
+            this.feedMessages = new ArrayList<IFeedMessage>();
+            feedMessages.add(feedMessages.get(partition));
+        }
+        feedManager = (IFeedManager) FeedManager.INSTANCE;
+    }
+
+    @Override
+    public void initialize() throws HyracksDataException {
+        try {
+            writer.open();
+            for (IFeedMessage feedMessage : feedMessages) {
+                feedManager.deliverMessage(feedId, feedMessage);
+            }
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        } finally {
+            writer.close();
+        }
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ADMStreamParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ADMStreamParser.java
deleted file mode 100644
index 658645c..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ADMStreamParser.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-
-public class ADMStreamParser extends AbstractStreamDataParser {
-
-    public ADMStreamParser() {
-    }
-
-    @Override
-    public void initialize(ARecordType atype, IHyracksTaskContext ctx) {
-        tupleParser = new AdmSchemafullRecordParserFactory(atype).createTupleParser(ctx);
-    }
-
-    @Override
-    public void parse(IFrameWriter writer) throws HyracksDataException {
-        tupleParser.parse(inputStream, writer);
-    }
-
-    @Override
-    public void configure(Map<String, String> configuration) {
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/AbstractStreamDataParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/AbstractStreamDataParser.java
deleted file mode 100644
index 403f197..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/AbstractStreamDataParser.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.io.InputStream;
-import java.util.HashMap;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.LongParserFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
-
-public abstract class AbstractStreamDataParser implements IDataStreamParser {
-
-    public static final String KEY_DELIMITER = "delimiter";
-    
-    protected static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
-
-    static {
-        typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
-        typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
-    }
-
-    protected ITupleParser tupleParser;
-    protected IFrameWriter frameWriter;
-    protected InputStream inputStream;
-
-    @Override
-    public abstract void initialize(ARecordType recordType, IHyracksTaskContext ctx);
-
-    @Override
-    public abstract void parse(IFrameWriter frameWriter) throws HyracksDataException;
-    
-    @Override
-    public void setInputStream(InputStream in) {
-        inputStream = in;
-        
-    }
-
-    @Override
-    public InputStream getInputStream() {
-        return inputStream;
-    }
-   
-   
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/DelimitedDataStreamParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/DelimitedDataStreamParser.java
deleted file mode 100644
index 11c70ac8..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/DelimitedDataStreamParser.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-
-public class DelimitedDataStreamParser extends AbstractStreamDataParser {
-
-    protected Character delimiter = defaultDelimiter;
-
-    protected static final Character defaultDelimiter = new Character('\n');
-
-    public Character getDelimiter() {
-        return delimiter;
-    }
-
-    public DelimitedDataStreamParser(Character delimiter) {
-        this.delimiter = delimiter;
-    }
-
-    public DelimitedDataStreamParser() {
-    }
-
-    @Override
-    public void initialize(ARecordType recordType, IHyracksTaskContext ctx) {
-        int n = recordType.getFieldTypes().length;
-        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
-        for (int i = 0; i < n; i++) {
-            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
-            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
-            if (vpf == null) {
-                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
-            }
-            fieldParserFactories[i] = vpf;
-        }
-        tupleParser = new NtDelimitedDataTupleParserFactory(recordType, fieldParserFactories, delimiter)
-                .createTupleParser(ctx);
-    }
-
-    @Override
-    public void parse(IFrameWriter writer) throws HyracksDataException {
-        tupleParser.parse(inputStream, writer);
-    }
-
-    @Override
-    public void configure(Map<String, String> configuration) {
-        String delimiterArg = configuration.get(KEY_DELIMITER);
-        if (delimiterArg != null) {
-            delimiter = delimiterArg.charAt(0);
-        } else {
-            delimiter = '\n';
-        }
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataParser.java
deleted file mode 100644
index eb7daf7..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataParser.java
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-
-/**
- * Represents an parser that processes an input stream to form records of a
- * given type. The parser creates frames that are flushed using a frame writer.
- */
-public interface IDataParser {
-
-    /**
-     * @param atype
-     *            The record type associated with each record output by the
-     *            parser
-     * @param configuration
-     *            Any configuration parameters for the parser
-     */
-    public void configure(Map<String, String> configuration);
-
-    /**
-     * Initializes the instance. An implementation may use the passed-in
-     * configuration parameters, the output record type to initialize itself so
-     * that it can parse an input stream to form records of the given type.
-     * 
-     * @param configuration
-     *            Any configuration parameters for the parser
-     * @param ctx
-     *            The runtime HyracksStageletContext.
-     */
-    public void initialize(ARecordType recordType, IHyracksTaskContext ctx);
-
-    /**
-     * Parses the input stream to produce records of the configured type and
-     * uses the frame writer instance to flush frames containing the produced
-     * records.
-     * 
-     * @param in
-     *            The source input stream
-     * @param frameWriter
-     *            A frame writer instance that is used for flushing frames to
-     *            the recipient operator
-     * @throws HyracksDataException
-     */
-    public void parse(IFrameWriter frameWriter) throws HyracksDataException;
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataStreamParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataStreamParser.java
deleted file mode 100644
index 1425707..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IDataStreamParser.java
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.io.InputStream;
-
-public interface IDataStreamParser extends IDataParser {
-
-    public void setInputStream(InputStream in);
-    
-    public InputStream getInputStream();
-    
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedDataParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedDataParser.java
deleted file mode 100644
index 7c9bb7d..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedDataParser.java
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-
-public interface IManagedDataParser extends IDataParser {
-
-    public IManagedTupleParser getManagedTupleParser();
-    
-    public void setAdapter(IManagedFeedAdapter adapter);
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedTupleParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedTupleParser.java
deleted file mode 100644
index 14f6372..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/IManagedTupleParser.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.util.Map;
-
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
-
-public interface IManagedTupleParser extends ITupleParser {
-
-    public void suspend() throws Exception;
-
-    public void resume() throws Exception;
-
-    public void stop() throws Exception;
-    
-    public void alter(Map<String,String> alterParams) throws Exception;
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmRecordParserFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmRecordParserFactory.java
deleted file mode 100644
index 3d31489..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmRecordParserFactory.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
-
-public class ManagedAdmRecordParserFactory extends AdmSchemafullRecordParserFactory {
-
-    private final IManagedFeedAdapter adapter;
-
-    public ManagedAdmRecordParserFactory(ARecordType recType, IManagedFeedAdapter adapter) {
-        super(recType);
-        this.adapter = adapter;
-    }
-
-    @Override
-    public ITupleParser createTupleParser(final IHyracksTaskContext ctx) {
-        return new ManagedAdmTupleParser(ctx, recType, adapter);
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmStreamParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmStreamParser.java
deleted file mode 100644
index bfe9fe0..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmStreamParser.java
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-
-public class ManagedAdmStreamParser extends ADMStreamParser implements IManagedDataParser{
-
-    private  IManagedFeedAdapter adapter;
-
-    @Override
-    public void initialize(ARecordType atype, IHyracksTaskContext ctx) {
-        tupleParser = new ManagedAdmRecordParserFactory(atype, adapter).createTupleParser(ctx);
-    }
-
-    @Override
-    public void configure(Map<String, String> configuration) {
-
-    }
-
-    @Override
-    public IManagedTupleParser getManagedTupleParser() {
-         return (IManagedTupleParser)tupleParser;
-    }
-
-    @Override
-    public void setAdapter(IManagedFeedAdapter adapter) {
-        this.adapter = adapter;        
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmTupleParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmTupleParser.java
deleted file mode 100644
index b7215a3..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedAdmTupleParser.java
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.adm.parser.nontagged.AdmLexer;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter.OperationState;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.runtime.operators.file.AdmTupleParser;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-
-public class ManagedAdmTupleParser extends AdmTupleParser implements IManagedTupleParser {
-
-    private OperationState state;
-    private List<OperationState> nextState;
-    private final IManagedFeedAdapter adapter;
-    private long tupleInterval;
-
-    public static final String TUPLE_INTERVAL_KEY = "tuple-interval";
-
-    public ManagedAdmTupleParser(IHyracksTaskContext ctx, ARecordType recType, IManagedFeedAdapter adapter) {
-        super(ctx, recType);
-        nextState = new ArrayList<OperationState>();
-        this.adapter = adapter;
-        this.tupleInterval = adapter.getAdapterProperty(TUPLE_INTERVAL_KEY) == null ? 0 : Long.parseLong(adapter
-                .getAdapterProperty(TUPLE_INTERVAL_KEY));
-    }
-
-    public ManagedAdmTupleParser(IHyracksTaskContext ctx, ARecordType recType, long tupleInterval,
-            IManagedFeedAdapter adapter) {
-        super(ctx, recType);
-        nextState = new ArrayList<OperationState>();
-        this.adapter = adapter;
-        this.tupleInterval = tupleInterval;
-    }
-
-    @Override
-    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
-        admLexer = new AdmLexer(in);
-        appender.reset(frame, true);
-        int tupleNum = 0;
-        try {
-            while (true) {
-                tb.reset();
-                if (!parseAdmInstance(recType, true, dos)) {
-                    break;
-                }
-                tb.addFieldEndOffset();
-                processNextTuple(nextState.isEmpty() ? null : nextState.get(0), writer);
-                Thread.currentThread().sleep(tupleInterval);
-                tupleNum++;
-            }
-            if (appender.getTupleCount() > 0) {
-                FrameUtils.flushFrame(frame, writer);
-            }
-        } catch (AsterixException ae) {
-            throw new HyracksDataException(ae);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
-        } catch (InterruptedException ie) {
-            throw new HyracksDataException(ie);
-        }
-    }
-
-    private void addTupleToFrame(IFrameWriter writer, boolean forceFlush) throws HyracksDataException {
-        boolean success = appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize());
-        if (!success) {
-            FrameUtils.flushFrame(frame, writer);
-            appender.reset(frame, true);
-            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                throw new IllegalStateException();
-            }
-        }
-
-        if (forceFlush) {
-            FrameUtils.flushFrame(frame, writer);
-        }
-
-    }
-
-    private void processNextTuple(OperationState feedState, IFrameWriter writer) throws HyracksDataException {
-        try {
-            if (feedState != null) {
-                switch (state) {
-                    case SUSPENDED:
-                        suspendOperation(writer);
-                        break;
-                    case STOPPED:
-                        stopOperation(writer);
-                        break;
-                }
-            } else {
-                addTupleToFrame(writer, false);
-            }
-        } catch (HyracksDataException hde) {
-            throw hde;
-        } catch (Exception e) {
-            throw new HyracksDataException(e);
-        }
-    }
-
-    private void suspendOperation(IFrameWriter writer) throws HyracksDataException, Exception {
-        nextState.remove(0);
-        addTupleToFrame(writer, false);
-        adapter.beforeSuspend();
-        synchronized (this) {
-            this.wait();
-            adapter.beforeResume();
-        }
-    }
-
-    private void stopOperation(IFrameWriter writer) throws HyracksDataException, Exception {
-        nextState.remove(0);
-        addTupleToFrame(writer, true);
-        adapter.beforeStop();
-        writer.close();
-    }
-
-    @Override
-    public void suspend() throws Exception {
-        nextState.add(OperationState.SUSPENDED);
-    }
-
-    @Override
-    public void resume() throws Exception {
-        synchronized (this) {
-            this.notifyAll();
-        }
-    }
-
-    @Override
-    public void stop() throws Exception {
-        nextState.add(OperationState.STOPPED);
-    }
-
-    @Override
-    public void alter(Map<String, String> alterParams) throws Exception {
-        if (alterParams.get(TUPLE_INTERVAL_KEY) != null) {
-            tupleInterval = Long.parseLong(alterParams.get(TUPLE_INTERVAL_KEY));
-        }
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataRecordParserFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataRecordParserFactory.java
deleted file mode 100644
index 37a7162..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataRecordParserFactory.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
-
-public class ManagedDelimitedDataRecordParserFactory extends NtDelimitedDataTupleParserFactory {
-
-    private final IManagedFeedAdapter adapter;
-
-    public ManagedDelimitedDataRecordParserFactory(IValueParserFactory[] fieldParserFactories, char fieldDelimiter,
-            ARecordType recType, IManagedFeedAdapter adapter) {
-        super(recType, fieldParserFactories, fieldDelimiter);
-        this.adapter = adapter;
-    }
-    
-    @Override
-    public ITupleParser createTupleParser(final IHyracksTaskContext ctx) {
-        return new ManagedDelimitedDataTupleParser(ctx, recordType, adapter, valueParserFactories, fieldDelimiter);
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataStreamParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataStreamParser.java
deleted file mode 100644
index f38a95b..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataStreamParser.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-
-public class ManagedDelimitedDataStreamParser extends DelimitedDataStreamParser implements IManagedDataParser {
-
-    private IManagedFeedAdapter adapter;
-   
-    @Override
-    public void initialize(ARecordType recordType, IHyracksTaskContext ctx) {
-        int n = recordType.getFieldTypes().length;
-        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
-        for (int i = 0; i < n; i++) {
-            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
-            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
-            if (vpf == null) {
-                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
-            }
-            fieldParserFactories[i] = vpf;
-        }
-        tupleParser = new ManagedDelimitedDataRecordParserFactory(fieldParserFactories, delimiter.charValue(),
-                recordType, adapter).createTupleParser(ctx);
-    }
-
-    @Override
-    public IManagedTupleParser getManagedTupleParser() {
-        return (IManagedTupleParser) tupleParser;
-    }
-
-    @Override
-    public void setAdapter(IManagedFeedAdapter adapter) {
-        this.adapter = adapter;
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataTupleParser.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataTupleParser.java
deleted file mode 100644
index 325eff4..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/data/parser/ManagedDelimitedDataTupleParser.java
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.external.data.parser;
-
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.builders.IARecordBuilder;
-import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter.OperationState;
-import edu.uci.ics.asterix.om.base.AMutableString;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.runtime.operators.file.DelimitedDataTupleParser;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-
-public class ManagedDelimitedDataTupleParser extends DelimitedDataTupleParser implements IManagedTupleParser {
-
-    private List<OperationState> nextState;
-    private IManagedFeedAdapter adapter;
-    private long tupleInterval;
-
-    public static final String TUPLE_INTERVAL_KEY = "tuple-interval";
-
-    public ManagedDelimitedDataTupleParser(IHyracksTaskContext ctx, ARecordType recType, IManagedFeedAdapter adapter,
-            IValueParserFactory[] valueParserFactories, char fieldDelimter) {
-        super(ctx, recType, valueParserFactories, fieldDelimter);
-        this.adapter = adapter;
-        nextState = new ArrayList<OperationState>();
-        tupleInterval = adapter.getAdapterProperty(TUPLE_INTERVAL_KEY) == null ? 0 : Long.parseLong(adapter
-                .getAdapterProperty(TUPLE_INTERVAL_KEY));
-    }
-
-    @Override
-    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
-        try {
-            IValueParser[] valueParsers = new IValueParser[valueParserFactories.length];
-            for (int i = 0; i < valueParserFactories.length; ++i) {
-                valueParsers[i] = valueParserFactories[i].createValueParser();
-            }
-
-            appender.reset(frame, true);
-            tb = new ArrayTupleBuilder(1);
-            recDos = tb.getDataOutput();
-
-            ArrayBackedValueStorage fieldValueBuffer = new ArrayBackedValueStorage();
-            DataOutput fieldValueBufferOutput = fieldValueBuffer.getDataOutput();
-            IARecordBuilder recBuilder = new RecordBuilder();
-            recBuilder.reset(recType);
-            recBuilder.init();
-
-            int n = recType.getFieldNames().length;
-            byte[] fieldTypeTags = new byte[n];
-            for (int i = 0; i < n; i++) {
-                ATypeTag tag = recType.getFieldTypes()[i].getTypeTag();
-                fieldTypeTags[i] = tag.serialize();
-            }
-
-            int[] fldIds = new int[n];
-            ArrayBackedValueStorage[] nameBuffers = new ArrayBackedValueStorage[n];
-            AMutableString str = new AMutableString(null);
-            for (int i = 0; i < n; i++) {
-                String name = recType.getFieldNames()[i];
-                fldIds[i] = recBuilder.getFieldId(name);
-                if (fldIds[i] < 0) {
-                    if (!recType.isOpen()) {
-                        throw new HyracksDataException("Illegal field " + name + " in closed type " + recType);
-                    } else {
-                        nameBuffers[i] = new ArrayBackedValueStorage();
-                        fieldNameToBytes(name, str, nameBuffers[i]);
-                    }
-                }
-            }
-
-            FieldCursor cursor = new FieldCursor(new InputStreamReader(in));
-            while (cursor.nextRecord()) {
-                tb.reset();
-                recBuilder.reset(recType);
-                recBuilder.init();
-
-                for (int i = 0; i < valueParsers.length; ++i) {
-                    if (!cursor.nextField()) {
-                        break;
-                    }
-                    fieldValueBuffer.reset();
-                    fieldValueBufferOutput.writeByte(fieldTypeTags[i]);
-                    valueParsers[i].parse(cursor.getBuffer(), cursor.getfStart(),
-                            cursor.getfEnd() - cursor.getfStart(), fieldValueBufferOutput);
-                    if (fldIds[i] < 0) {
-                        recBuilder.addField(nameBuffers[i], fieldValueBuffer);
-                    } else {
-                        recBuilder.addField(fldIds[i], fieldValueBuffer);
-                    }
-                }
-                recBuilder.write(recDos, true);
-                processNextTuple(nextState.isEmpty() ? null : nextState.get(0), writer);
-                Thread.currentThread().sleep(tupleInterval);
-            }
-            if (appender.getTupleCount() > 0) {
-                FrameUtils.flushFrame(frame, writer);
-            }
-        } catch (IOException e) {
-            throw new HyracksDataException(e);
-        } catch (InterruptedException ie) {
-            throw new HyracksDataException(ie);
-        }
-    }
-
-    private void addTupleToFrame(IFrameWriter writer, boolean forceFlush) throws HyracksDataException {
-        tb.addFieldEndOffset();
-        boolean success = appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize());
-        if (!success) {
-            FrameUtils.flushFrame(frame, writer);
-            appender.reset(frame, true);
-            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                throw new IllegalStateException();
-            }
-        }
-
-        if (forceFlush) {
-            FrameUtils.flushFrame(frame, writer);
-        }
-
-    }
-
-    private void processNextTuple(OperationState feedState, IFrameWriter writer) throws HyracksDataException {
-        try {
-            if (feedState != null) {
-                switch (feedState) {
-                    case SUSPENDED:
-                        suspendOperation(writer);
-                        break;
-                    case STOPPED:
-                        stopOperation(writer);
-                        break;
-                }
-            } else {
-                addTupleToFrame(writer, false);
-            }
-        } catch (HyracksDataException hde) {
-            throw hde;
-        } catch (Exception e) {
-            throw new HyracksDataException(e);
-        }
-    }
-
-    private void suspendOperation(IFrameWriter writer) throws HyracksDataException, Exception {
-        nextState.remove(0);
-        addTupleToFrame(writer, false);
-        adapter.beforeSuspend();
-        synchronized (this) {
-            this.wait();
-            adapter.beforeResume();
-        }
-    }
-
-    private void stopOperation(IFrameWriter writer) throws HyracksDataException, Exception {
-        nextState.remove(0);
-        addTupleToFrame(writer, false);
-        adapter.beforeStop();
-        adapter.stop();
-    }
-
-    @Override
-    public void suspend() throws Exception {
-        nextState.add(OperationState.SUSPENDED);
-    }
-
-    @Override
-    public void resume() throws Exception {
-        synchronized (this) {
-            this.notifyAll();
-        }
-    }
-
-    @Override
-    public void stop() throws Exception {
-        nextState.add(OperationState.STOPPED);
-    }
-
-    @Override
-    public void alter(Map<String, String> alterParams) throws Exception {
-        if (alterParams.get(TUPLE_INTERVAL_KEY) != null) {
-            tupleInterval = Long.parseLong(alterParams.get(TUPLE_INTERVAL_KEY));
-        }
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java
index 320a29f..440ee8c 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AbstractDatasourceAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,11 +17,9 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceAdapter;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
@@ -36,78 +34,58 @@
  */
 public abstract class AbstractDatasourceAdapter implements IDatasourceAdapter {
 
-    private static final long serialVersionUID = -3510610289692452466L;
+    private static final long serialVersionUID = 1L;
 
     protected Map<String, String> configuration;
-
-    protected AlgebricksPartitionConstraint partitionConstraint;
-
+    protected transient AlgebricksPartitionConstraint partitionConstraint;
     protected IAType atype;
-
     protected IHyracksTaskContext ctx;
-
-    protected IDataParser dataParser;
-
-    protected static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
-
-    protected static final HashMap<String, String> formatToParserMap = new HashMap<String, String>();
-
-    protected static final HashMap<String, String> formatToManagedParserMap = new HashMap<String, String>();
-
-    protected AdapterDataFlowType dataFlowType;
-
     protected AdapterType adapterType;
 
+    protected static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
     static {
         typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
         typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
         typeToValueParserFactMap.put(ATypeTag.DOUBLE, DoubleParserFactory.INSTANCE);
         typeToValueParserFactMap.put(ATypeTag.INT64, LongParserFactory.INSTANCE);
         typeToValueParserFactMap.put(ATypeTag.STRING, UTF8StringParserFactory.INSTANCE);
-
-        formatToParserMap.put("delimited-text", "edu.uci.ics.asterix.external.data.parser.DelimitedDataStreamParser");
-        formatToParserMap.put("adm", "edu.uci.ics.asterix.external.data.parser.ADMStreamParser");
-
-        formatToManagedParserMap.put("delimited-text",
-                "edu.uci.ics.asterix.external.data.parser.ManagedDelimitedDataStreamParser");
-        formatToManagedParserMap.put("adm", "edu.uci.ics.asterix.external.data.parser.ManagedAdmStreamParser");
-
     }
 
-    public static final String KEY_FORMAT = "format";
-    public static final String KEY_PARSER = "parser";
+    protected static final Map<String, String> formatToParserFactoryMap = initializeFormatParserFactoryMap();
 
+    public static final String KEY_FORMAT = "format";
+    public static final String KEY_PARSER_FACTORY = "parser";
     public static final String FORMAT_DELIMITED_TEXT = "delimited-text";
     public static final String FORMAT_ADM = "adm";
 
-    abstract public void initialize(IHyracksTaskContext ctx) throws Exception;
-
-    abstract public void configure(Map<String, String> arguments, IAType atype) throws Exception;
-
-    abstract public AdapterDataFlowType getAdapterDataFlowType();
-
-    abstract public AdapterType getAdapterType();
-
-    public AlgebricksPartitionConstraint getPartitionConstraint() {
-        return partitionConstraint;
+    private static Map<String, String> initializeFormatParserFactoryMap() {
+        Map<String, String> map = new HashMap<String, String>();
+        map.put(FORMAT_DELIMITED_TEXT, "edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory");
+        map.put(FORMAT_ADM, "edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory");
+        return map;
     }
 
-    public void setAdapterProperty(String property, String value) {
-        configuration.put(property, value);
-    }
+    /**
+     * Get the partition constraint chosen by the adapter.
+     * An adapter may have preferences as to where it needs to be instantiated and used.
+     */
+    public abstract AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
 
-    public IDataParser getParser() {
-        return dataParser;
-    }
-
-    public void setParser(IDataParser dataParser) {
-        this.dataParser = dataParser;
-    }
-
+    /**
+     * Get the configured value from the adapter configuration parameters, corresponding to the an attribute.
+     * 
+     * @param attribute
+     *            The attribute whose value needs to be obtained.
+     */
     public String getAdapterProperty(String attribute) {
         return configuration.get(attribute);
     }
 
+    /**
+     * Get the adapter configuration parameters.
+     * 
+     * @return A Map<String,String> instance representing the adapter configuration.
+     */
     public Map<String, String> getConfiguration() {
         return configuration;
     }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java
new file mode 100644
index 0000000..ac36733
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/AdapterIdentifier.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.Serializable;
+
+/**
+ * A unique identifier for a datasource adapter.
+ */
+public class AdapterIdentifier implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private final String namespace;
+    private final String adapterName;
+
+    public AdapterIdentifier(String namespace, String adapterName) {
+        this.namespace = namespace;
+        this.adapterName = adapterName;
+    }
+
+    public String getNamespace() {
+        return namespace;
+    }
+
+    public String getAdapterName() {
+        return adapterName;
+    }
+
+    @Override
+    public int hashCode() {
+        return (namespace + "@" + adapterName).hashCode();
+
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof AdapterIdentifier)) {
+            return false;
+        }
+        return namespace.equals(((AdapterIdentifier) o).getNamespace())
+                && namespace.equals(((AdapterIdentifier) o).getNamespace());
+    }
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
index 0673a24..3898f7e 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/CNNFeedAdapter.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
 import java.util.ArrayList;
@@ -5,116 +19,89 @@
 import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceAdapter;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataStreamParser;
-import edu.uci.ics.asterix.external.data.parser.ManagedDelimitedDataStreamParser;
-import edu.uci.ics.asterix.feed.intake.FeedStream;
-import edu.uci.ics.asterix.feed.intake.RSSFeedClient;
-import edu.uci.ics.asterix.feed.managed.adapter.IMutableFeedAdapter;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
 
-public class CNNFeedAdapter extends RSSFeedAdapter  implements
-		IDatasourceAdapter, IMutableFeedAdapter {
+/**
+ * An Adapter that provides the functionality of fetching news feed from CNN service
+ * The Adapter provides news feed as ADM records.
+ */
+public class CNNFeedAdapter extends RSSFeedAdapter implements IDatasourceAdapter, IManagedFeedAdapter {
 
-	private List<String> feedURLs = new ArrayList<String>();
-	private String id_prefix = "";
+    private static final long serialVersionUID = 2523303758114582251L;
+    private List<String> feedURLs = new ArrayList<String>();
+    private static Map<String, String> topicFeeds = new HashMap<String, String>();
 
-	public static final String KEY_RSS_URL = "topic";
-	public static final String KEY_INTERVAL = "interval";
+    public static final String KEY_RSS_URL = "topic";
+    public static final String KEY_INTERVAL = "interval";
+    public static final String TOP_STORIES = "topstories";
+    public static final String WORLD = "world";
+    public static final String US = "us";
+    public static final String SPORTS = "sports";
+    public static final String BUSINESS = "business";
+    public static final String POLITICS = "politics";
+    public static final String CRIME = "crime";
+    public static final String TECHNOLOGY = "technology";
+    public static final String HEALTH = "health";
+    public static final String ENTERNTAINMENT = "entertainemnt";
+    public static final String TRAVEL = "travel";
+    public static final String LIVING = "living";
+    public static final String VIDEO = "video";
+    public static final String STUDENT = "student";
+    public static final String POPULAR = "popular";
+    public static final String RECENT = "recent";
 
-	private static Map<String, String> topicFeeds = new HashMap<String, String>();
+    private void initTopics() {
+        topicFeeds.put(TOP_STORIES, "http://rss.cnn.com/rss/cnn_topstories.rss");
+        topicFeeds.put(WORLD, "http://rss.cnn.com/rss/cnn_world.rss");
+        topicFeeds.put(US, "http://rss.cnn.com/rss/cnn_us.rss");
+        topicFeeds.put(SPORTS, "http://rss.cnn.com/rss/si_topstories.rss");
+        topicFeeds.put(BUSINESS, "http://rss.cnn.com/rss/money_latest.rss");
+        topicFeeds.put(POLITICS, "http://rss.cnn.com/rss/cnn_allpolitics.rss");
+        topicFeeds.put(CRIME, "http://rss.cnn.com/rss/cnn_crime.rss");
+        topicFeeds.put(TECHNOLOGY, "http://rss.cnn.com/rss/cnn_tech.rss");
+        topicFeeds.put(HEALTH, "http://rss.cnn.com/rss/cnn_health.rss");
+        topicFeeds.put(ENTERNTAINMENT, "http://rss.cnn.com/rss/cnn_showbiz.rss");
+        topicFeeds.put(LIVING, "http://rss.cnn.com/rss/cnn_living.rss");
+        topicFeeds.put(VIDEO, "http://rss.cnn.com/rss/cnn_freevideo.rss");
+        topicFeeds.put(TRAVEL, "http://rss.cnn.com/rss/cnn_travel.rss");
+        topicFeeds.put(STUDENT, "http://rss.cnn.com/rss/cnn_studentnews.rss");
+        topicFeeds.put(POPULAR, "http://rss.cnn.com/rss/cnn_mostpopular.rss");
+        topicFeeds.put(RECENT, "http://rss.cnn.com/rss/cnn_latest.rss");
+    }
 
-	public static final String TOP_STORIES = "topstories";
-	public static final String WORLD = "world";
-	public static final String US = "us";
-	public static final String SPORTS = "sports";
-	public static final String BUSINESS = "business";
-	public static final String POLITICS = "politics";
-	public static final String CRIME = "crime";
-	public static final String TECHNOLOGY = "technology";
-	public static final String HEALTH = "health";
-	public static final String ENTERNTAINMENT = "entertainemnt";
-	public static final String TRAVEL = "travel";
-	public static final String LIVING = "living";
-	public static final String VIDEO = "video";
-	public static final String STUDENT = "student";
-	public static final String POPULAR = "popular";
-	public static final String RECENT = "recent";
+    @Override
+    public void configure(Map<String, String> arguments) throws Exception {
+        configuration = arguments;
+        String rssURLProperty = configuration.get(KEY_RSS_URL);
+        if (rssURLProperty == null) {
+            throw new IllegalArgumentException("no rss url provided");
+        }
+        initializeFeedURLs(rssURLProperty);
+        configurePartitionConstraints();
 
-	private void initTopics() {
-		topicFeeds
-				.put(TOP_STORIES, "http://rss.cnn.com/rss/cnn_topstories.rss");
-		topicFeeds.put(WORLD, "http://rss.cnn.com/rss/cnn_world.rss");
-		topicFeeds.put(US, "http://rss.cnn.com/rss/cnn_us.rss");
-		topicFeeds.put(SPORTS, "http://rss.cnn.com/rss/si_topstories.rss");
-		topicFeeds.put(BUSINESS, "http://rss.cnn.com/rss/money_latest.rss");
-		topicFeeds.put(POLITICS, "http://rss.cnn.com/rss/cnn_allpolitics.rss");
-		topicFeeds.put(CRIME, "http://rss.cnn.com/rss/cnn_crime.rss");
-		topicFeeds.put(TECHNOLOGY, "http://rss.cnn.com/rss/cnn_tech.rss");
-		topicFeeds.put(HEALTH, "http://rss.cnn.com/rss/cnn_health.rss");
-		topicFeeds
-				.put(ENTERNTAINMENT, "http://rss.cnn.com/rss/cnn_showbiz.rss");
-		topicFeeds.put(LIVING, "http://rss.cnn.com/rss/cnn_living.rss");
-		topicFeeds.put(VIDEO, "http://rss.cnn.com/rss/cnn_freevideo.rss");
-		topicFeeds.put(TRAVEL, "http://rss.cnn.com/rss/cnn_travel.rss");
-		topicFeeds.put(STUDENT, "http://rss.cnn.com/rss/cnn_studentnews.rss");
-		topicFeeds.put(POPULAR, "http://rss.cnn.com/rss/cnn_mostpopular.rss");
-		topicFeeds.put(RECENT, "http://rss.cnn.com/rss/cnn_latest.rss");
-	}
+    }
 
-	@Override
-	public IDataParser getDataParser(int partition) throws Exception {
-		if (dataParser == null) {
-			dataParser = new ManagedDelimitedDataStreamParser();
-			dataParser.configure(configuration);
-			dataParser.initialize((ARecordType) atype, ctx);
-			RSSFeedClient feedClient = new RSSFeedClient(this,
-					feedURLs.get(partition), id_prefix);
-			FeedStream feedStream = new FeedStream(feedClient, ctx);
-			((IDataStreamParser) dataParser).setInputStream(feedStream);
-		}
-		return dataParser;
-	}
+    private void initializeFeedURLs(String rssURLProperty) {
+        feedURLs.clear();
+        String[] rssTopics = rssURLProperty.split(",");
+        initTopics();
+        for (String topic : rssTopics) {
+            String feedURL = topicFeeds.get(topic);
+            if (feedURL == null) {
+                throw new IllegalArgumentException(" unknown topic :" + topic + " please choose from the following "
+                        + getValidTopics());
+            }
+            feedURLs.add(feedURL);
+        }
+    }
 
-	@Override
-	public void configure(Map<String, String> arguments, IAType atype)
-			throws Exception {
-		configuration = arguments;
-		this.atype = atype;
-		String rssURLProperty = configuration.get(KEY_RSS_URL);
-		if (rssURLProperty == null) {
-			throw new IllegalArgumentException("no rss url provided");
-		}
-		initializeFeedURLs(rssURLProperty);
-		configurePartitionConstraints();
-
-	}
-
-	private void initializeFeedURLs(String rssURLProperty) {
-		feedURLs.clear();
-		String[] rssTopics = rssURLProperty.split(",");
-		initTopics();
-		for (String topic : rssTopics) {
-			String feedURL = topicFeeds.get(topic);
-			if (feedURL == null) {
-				throw new IllegalArgumentException(" unknown topic :" + topic
-						+ " please choose from the following "
-						+ getValidTopics());
-			}
-			feedURLs.add(feedURL);
-		}
-	}
-
-	private static String getValidTopics() {
-		StringBuilder builder = new StringBuilder();
-		for (String key : topicFeeds.keySet()) {
-			builder.append(key);
-			builder.append(" ");
-		}
-		return new String(builder);
-	}
+    private static String getValidTopics() {
+        StringBuilder builder = new StringBuilder();
+        for (String key : topicFeeds.keySet()) {
+            builder.append(key);
+            builder.append(" ");
+        }
+        return new String(builder);
+    }
 
 }
-
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
new file mode 100644
index 0000000..9f8cedc
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.util.DNSResolverFactory;
+import edu.uci.ics.asterix.external.util.INodeResolver;
+import edu.uci.ics.asterix.external.util.INodeResolverFactory;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
+import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+public abstract class FileSystemBasedAdapter extends AbstractDatasourceAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final String NODE_RESOLVER_FACTORY_PROPERTY = "node.Resolver";
+    public static final String KEY_DELIMITER = "delimiter";
+    public static final String KEY_PATH = "path";
+
+    protected ITupleParserFactory parserFactory;
+    protected ITupleParser parser;
+    protected static INodeResolver nodeResolver;
+
+    private static final INodeResolver DEFAULT_NODE_RESOLVER = new DNSResolverFactory().createNodeResolver();
+    private static final Logger LOGGER = Logger.getLogger(FileSystemBasedAdapter.class.getName());
+
+    public abstract InputStream getInputStream(int partition) throws IOException;
+
+    public FileSystemBasedAdapter(IAType atype) {
+        this.atype = atype;
+    }
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        InputStream in = getInputStream(partition);
+        parser = getTupleParser();
+        parser.parse(in, writer);
+    }
+
+    @Override
+    public abstract void initialize(IHyracksTaskContext ctx) throws Exception;
+
+    @Override
+    public abstract void configure(Map<String, String> arguments) throws Exception;
+
+    @Override
+    public abstract AdapterType getAdapterType();
+
+    @Override
+    public abstract AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
+
+    protected ITupleParser getTupleParser() throws Exception {
+        return parserFactory.createTupleParser(ctx);
+    }
+
+    protected void configureFormat() throws Exception {
+        String parserFactoryClassname = configuration.get(KEY_PARSER_FACTORY);
+        if (parserFactoryClassname == null) {
+            String specifiedFormat = configuration.get(KEY_FORMAT);
+            if (specifiedFormat == null) {
+                throw new IllegalArgumentException(" Unspecified data format");
+            } else if (FORMAT_DELIMITED_TEXT.equalsIgnoreCase(specifiedFormat)) {
+                parserFactory = getDelimitedDataTupleParserFactory((ARecordType) atype);
+            } else if (FORMAT_ADM.equalsIgnoreCase(configuration.get(KEY_FORMAT))) {
+                parserFactory = getADMDataTupleParserFactory((ARecordType) atype);
+            } else {
+                throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
+            }
+        } else {
+            parserFactory = (ITupleParserFactory) Class.forName(parserFactoryClassname).newInstance();
+        }
+
+    }
+
+    protected ITupleParserFactory getDelimitedDataTupleParserFactory(ARecordType recordType) throws AsterixException {
+        int n = recordType.getFieldTypes().length;
+        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
+        for (int i = 0; i < n; i++) {
+            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
+            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
+            if (vpf == null) {
+                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
+            }
+            fieldParserFactories[i] = vpf;
+        }
+        String delimiterValue = (String) configuration.get(KEY_DELIMITER);
+        if (delimiterValue != null && delimiterValue.length() > 1) {
+            throw new AsterixException("improper delimiter");
+        }
+
+        Character delimiter = delimiterValue.charAt(0);
+        return new NtDelimitedDataTupleParserFactory(recordType, fieldParserFactories, delimiter);
+    }
+
+    protected ITupleParserFactory getADMDataTupleParserFactory(ARecordType recordType) throws AsterixException {
+        try {
+            return new AdmSchemafullRecordParserFactory(recordType);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    protected INodeResolver getNodeResolver() {
+        if (nodeResolver == null) {
+            nodeResolver = initNodeResolver();
+        }
+        return nodeResolver;
+    }
+
+    private static INodeResolver initNodeResolver() {
+        INodeResolver nodeResolver = null;
+        String configuredNodeResolverFactory = System.getProperty(NODE_RESOLVER_FACTORY_PROPERTY);
+        if (configuredNodeResolverFactory != null) {
+            try {
+                nodeResolver = ((INodeResolverFactory) (Class.forName(configuredNodeResolverFactory).newInstance()))
+                        .createNodeResolver();
+
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.WARNING)) {
+                    LOGGER.log(Level.WARNING, "Unable to create node resolver from the configured classname "
+                            + configuredNodeResolverFactory + "\n" + e.getMessage());
+                }
+                nodeResolver = DEFAULT_NODE_RESOLVER;
+            }
+        } else {
+            nodeResolver = DEFAULT_NODE_RESOLVER;
+        }
+        return nodeResolver;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
index 205c855..1e05b2f 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HDFSAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,14 +17,16 @@
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
-import java.nio.ByteBuffer;
+import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Random;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.mapred.Counters.Counter;
 import org.apache.hadoop.mapred.InputSplit;
@@ -32,135 +34,139 @@
 import org.apache.hadoop.mapred.RecordReader;
 import org.apache.hadoop.mapred.Reporter;
 import org.apache.hadoop.mapred.SequenceFileInputFormat;
+import org.apache.hadoop.mapred.TextInputFormat;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.external.data.parser.DelimitedDataStreamParser;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataStreamParser;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
-import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksCountPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.asterix.om.util.AsterixRuntimeUtil;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+import edu.uci.ics.hyracks.dataflow.hadoop.util.InputSplitsProxy;
 
-public class HDFSAdapter extends AbstractDatasourceAdapter implements IDatasourceReadAdapter {
+/**
+ * Provides functionality for fetching external data stored in an HDFS instance.
+ */
+@SuppressWarnings({ "deprecation", "rawtypes" })
+public class HDFSAdapter extends FileSystemBasedAdapter {
 
-    private String hdfsUrl;
-    private List<String> hdfsPaths;
-    private String inputFormatClassName;
-    private InputSplit[] inputSplits;
-    private JobConf conf;
-    private IHyracksTaskContext ctx;
-    private Reporter reporter;
-    private boolean isDelimited;
-    private Character delimiter;
-    private static final Map<String, String> formatClassNames = new HashMap<String, String>();
+    private static final long serialVersionUID = 1L;
+    private static final Logger LOGGER = Logger.getLogger(HDFSAdapter.class.getName());
 
     public static final String KEY_HDFS_URL = "hdfs";
-    public static final String KEY_HDFS_PATH = "path";
     public static final String KEY_INPUT_FORMAT = "input-format";
-
     public static final String INPUT_FORMAT_TEXT = "text-input-format";
     public static final String INPUT_FORMAT_SEQUENCE = "sequence-input-format";
 
-    static {
+    private Object[] inputSplits;
+    private transient JobConf conf;
+    private InputSplitsProxy inputSplitsProxy;
+    private static final Map<String, String> formatClassNames = initInputFormatMap();
+
+    private static Map<String, String> initInputFormatMap() {
+        Map<String, String> formatClassNames = new HashMap<String, String>();
         formatClassNames.put(INPUT_FORMAT_TEXT, "org.apache.hadoop.mapred.TextInputFormat");
         formatClassNames.put(INPUT_FORMAT_SEQUENCE, "org.apache.hadoop.mapred.SequenceFileInputFormat");
+        return formatClassNames;
     }
 
-    public String getHdfsUrl() {
-        return hdfsUrl;
-    }
-
-    public void setHdfsUrl(String hdfsUrl) {
-        this.hdfsUrl = hdfsUrl;
-    }
-
-    public List<String> getHdfsPaths() {
-        return hdfsPaths;
-    }
-
-    public void setHdfsPaths(List<String> hdfsPaths) {
-        this.hdfsPaths = hdfsPaths;
+    public HDFSAdapter(IAType atype) {
+        super(atype);
     }
 
     @Override
-    public void configure(Map<String, String> arguments, IAType atype) throws Exception {
+    public void configure(Map<String, String> arguments) throws Exception {
         configuration = arguments;
         configureFormat();
         configureJobConf();
-        configurePartitionConstraint();
-        this.atype = atype;
+        configureSplits();
     }
 
-    private void configureFormat() throws Exception {
-        String format = configuration.get(KEY_INPUT_FORMAT);
-        inputFormatClassName = formatClassNames.get(format);
-        if (inputFormatClassName == null) {
-            throw new Exception("format " + format + " not supported");
+    private void configureSplits() throws IOException {
+        if (inputSplitsProxy == null) {
+            inputSplits = conf.getInputFormat().getSplits(conf, 0);
         }
-
-        String parserClass = configuration.get(KEY_PARSER);
-        if (parserClass == null) {
-            if (FORMAT_DELIMITED_TEXT.equalsIgnoreCase(configuration.get(KEY_FORMAT))) {
-                parserClass = formatToParserMap.get(FORMAT_DELIMITED_TEXT);
-            } else if (FORMAT_ADM.equalsIgnoreCase(configuration.get(KEY_FORMAT))) {
-                parserClass = formatToParserMap.get(FORMAT_ADM);
-            }
-        }
-
-        dataParser = (IDataParser) Class.forName(parserClass).newInstance();
-        dataParser.configure(configuration);
+        inputSplitsProxy = new InputSplitsProxy(conf, inputSplits);
     }
 
     private void configurePartitionConstraint() throws Exception {
-        InputSplit[] inputSplits = conf.getInputFormat().getSplits(conf, 0);
-        partitionConstraint = new AlgebricksCountPartitionConstraint(inputSplits.length);
-        hdfsPaths = new ArrayList<String>();
-        for (String hdfsPath : configuration.get(KEY_HDFS_PATH).split(",")) {
-            hdfsPaths.add(hdfsPath);
-        }
-    }
-
-    private ITupleParserFactory createTupleParserFactory(ARecordType recType) {
-        if (isDelimited) {
-            int n = recType.getFieldTypes().length;
-            IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
-            for (int i = 0; i < n; i++) {
-                ATypeTag tag = recType.getFieldTypes()[i].getTypeTag();
-                IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
-                if (vpf == null) {
-                    throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
+        List<String> locations = new ArrayList<String>();
+        Random random = new Random();
+        boolean couldConfigureLocationConstraints = false;
+        try {
+            Map<String, Set<String>> nodeControllers = AsterixRuntimeUtil.getNodeControllerMap();
+            for (Object inputSplit : inputSplits) {
+                String[] dataNodeLocations = ((InputSplit) inputSplit).getLocations();
+                if (dataNodeLocations == null || dataNodeLocations.length == 0) {
+                    throw new IllegalArgumentException("No datanode locations found: check hdfs path");
                 }
-                fieldParserFactories[i] = vpf;
+
+                // loop over all replicas until a split location coincides
+                // with an asterix datanode location
+                for (String datanodeLocation : dataNodeLocations) {
+                    Set<String> nodeControllersAtLocation = null;
+                    try {
+                        nodeControllersAtLocation = nodeControllers.get(AsterixRuntimeUtil
+                                .getIPAddress(datanodeLocation));
+                    } catch (UnknownHostException uhe) {
+                        if (LOGGER.isLoggable(Level.WARNING)) {
+                            LOGGER.log(Level.WARNING, "Unknown host :" + datanodeLocation);
+                        }
+                        continue;
+                    }
+                    if (nodeControllersAtLocation == null || nodeControllersAtLocation.size() == 0) {
+                        if (LOGGER.isLoggable(Level.WARNING)) {
+                            LOGGER.log(Level.WARNING, "No node controller found at " + datanodeLocation
+                                    + " will look at replica location");
+                        }
+                        couldConfigureLocationConstraints = false;
+                    } else {
+                        int locationIndex = random.nextInt(nodeControllersAtLocation.size());
+                        String chosenLocation = (String) nodeControllersAtLocation.toArray()[locationIndex];
+                        locations.add(chosenLocation);
+                        if (LOGGER.isLoggable(Level.INFO)) {
+                            LOGGER.log(Level.INFO, "split : " + inputSplit + " to be processed by :" + chosenLocation);
+                        }
+                        couldConfigureLocationConstraints = true;
+                        break;
+                    }
+                }
+
+                /* none of the replica locations coincides with an Asterix
+                   node controller location.
+                */
+                if (!couldConfigureLocationConstraints) {
+                    List<String> allNodeControllers = AsterixRuntimeUtil.getAllNodeControllers();
+                    int locationIndex = random.nextInt(allNodeControllers.size());
+                    String chosenLocation = allNodeControllers.get(locationIndex);
+                    locations.add(chosenLocation);
+                    if (LOGGER.isLoggable(Level.SEVERE)) {
+                        LOGGER.log(Level.SEVERE, "No local node controller found to process split : " + inputSplit
+                                + " will be processed by a remote node controller:" + chosenLocation);
+                    }
+                }
             }
-            return new NtDelimitedDataTupleParserFactory(recType, fieldParserFactories, delimiter);
-        } else {
-            return new AdmSchemafullRecordParserFactory(recType);
+            partitionConstraint = new AlgebricksAbsolutePartitionConstraint(locations.toArray(new String[] {}));
+        } catch (Exception e) {
+            if (LOGGER.isLoggable(Level.SEVERE)) {
+                LOGGER.log(Level.SEVERE, "Encountered exception :" + e + " using count constraints");
+            }
+            partitionConstraint = new AlgebricksCountPartitionConstraint(inputSplits.length);
         }
     }
 
     private JobConf configureJobConf() throws Exception {
-        hdfsUrl = configuration.get(KEY_HDFS_URL);
         conf = new JobConf();
-        conf.set("fs.default.name", hdfsUrl);
+        conf.set("fs.default.name", configuration.get(KEY_HDFS_URL).trim());
         conf.set("fs.hdfs.impl", "org.apache.hadoop.hdfs.DistributedFileSystem");
         conf.setClassLoader(HDFSAdapter.class.getClassLoader());
-        conf.set("mapred.input.dir", configuration.get(KEY_HDFS_PATH));
-        conf.set("mapred.input.format.class", formatClassNames.get(configuration.get(KEY_INPUT_FORMAT)));
+        conf.set("mapred.input.dir", configuration.get(KEY_PATH).trim());
+        conf.set("mapred.input.format.class", formatClassNames.get(configuration.get(KEY_INPUT_FORMAT).trim()));
         return conf;
     }
 
-    public AdapterDataFlowType getAdapterDataFlowType() {
-        return AdapterDataFlowType.PULL;
-    }
-
     public AdapterType getAdapterType() {
         return AdapterType.READ_WRITE;
     }
@@ -168,9 +174,11 @@
     @Override
     public void initialize(IHyracksTaskContext ctx) throws Exception {
         this.ctx = ctx;
-        inputSplits = conf.getInputFormat().getSplits(conf, 0);
-        dataParser.initialize((ARecordType) atype, ctx);
-        reporter = new Reporter() {
+        inputSplits = inputSplitsProxy.toInputSplits(conf);
+    }
+
+    private Reporter getReporter() {
+        Reporter reporter = new Reporter() {
 
             @Override
             public Counter getCounter(Enum<?> arg0) {
@@ -203,89 +211,102 @@
             public void progress() {
             }
         };
+
+        return reporter;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public InputStream getInputStream(int partition) throws IOException {
+        try {
+            InputStream inputStream;
+            if (conf.getInputFormat() instanceof SequenceFileInputFormat) {
+                SequenceFileInputFormat format = (SequenceFileInputFormat) conf.getInputFormat();
+                RecordReader reader = format.getRecordReader(
+                        (org.apache.hadoop.mapred.FileSplit) inputSplits[partition], conf, getReporter());
+                inputStream = new HDFSStream(reader, ctx);
+            } else {
+                try {
+                    TextInputFormat format = (TextInputFormat) conf.getInputFormat();
+                    RecordReader reader = format.getRecordReader(
+                            (org.apache.hadoop.mapred.FileSplit) inputSplits[partition], conf, getReporter());
+                    inputStream = new HDFSStream(reader, ctx);
+                } catch (FileNotFoundException e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+            return inputStream;
+        } catch (Exception e) {
+            throw new IOException(e);
+        }
+
     }
 
     @Override
-    public IDataParser getDataParser(int partition) throws Exception {
-        Path path = new Path(inputSplits[partition].toString());
-        FileSystem fs = FileSystem.get(conf);
-        InputStream inputStream;
-        if (conf.getInputFormat() instanceof SequenceFileInputFormat) {
-            SequenceFileInputFormat format = (SequenceFileInputFormat) conf.getInputFormat();
-            RecordReader reader = format.getRecordReader(inputSplits[partition], conf, reporter);
-            inputStream = new SequenceToTextStream(reader, ctx);
-        } else {
-            try {
-                inputStream = fs.open(((org.apache.hadoop.mapred.FileSplit) inputSplits[partition]).getPath());
-            } catch (FileNotFoundException e) {
-                throw new HyracksDataException(e);
-            }
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        if (partitionConstraint == null) {
+            configurePartitionConstraint();
         }
-
-        if (dataParser instanceof IDataStreamParser) {
-            ((IDataStreamParser) dataParser).setInputStream(inputStream);
-        } else {
-            throw new IllegalArgumentException(" parser not compatible");
-        }
-
-        return dataParser;
+        return partitionConstraint;
     }
 
 }
 
-class SequenceToTextStream extends InputStream {
+class HDFSStream extends InputStream {
 
-    private ByteBuffer buffer;
-    private int capacity;
-    private RecordReader reader;
-    private boolean readNext = true;
+    private RecordReader<Object, Text> reader;
     private final Object key;
     private final Text value;
+    private boolean hasMore = false;
+    private static final int EOL = "\n".getBytes()[0];
+    private Text pendingValue = null;
 
-    public SequenceToTextStream(RecordReader reader, IHyracksTaskContext ctx) throws Exception {
-        capacity = ctx.getFrameSize();
-        buffer = ByteBuffer.allocate(capacity);
+    public HDFSStream(RecordReader<Object, Text> reader, IHyracksTaskContext ctx) throws Exception {
         this.reader = reader;
         key = reader.createKey();
         try {
             value = (Text) reader.createValue();
         } catch (ClassCastException cce) {
-            throw new Exception("context is not of type org.apache.hadoop.io.Text"
+            throw new Exception("value is not of type org.apache.hadoop.io.Text"
                     + " type not supported in sequence file format", cce);
         }
-        initialize();
-    }
-
-    private void initialize() throws Exception {
-        boolean hasMore = reader.next(key, value);
-        if (!hasMore) {
-            buffer.limit(0);
-        } else {
-            buffer.position(0);
-            buffer.limit(capacity);
-            buffer.put(value.getBytes());
-            buffer.put("\n".getBytes());
-            buffer.flip();
-        }
     }
 
     @Override
-    public int read() throws IOException {
-        if (!buffer.hasRemaining()) {
-            boolean hasMore = reader.next(key, value);
-            if (!hasMore) {
-                return -1;
-            }
-            buffer.position(0);
-            buffer.limit(capacity);
-            buffer.put(value.getBytes());
-            buffer.put("\n".getBytes());
-            buffer.flip();
-            return buffer.get();
-        } else {
-            return buffer.get();
+    public int read(byte[] buffer, int offset, int len) throws IOException {
+        int numBytes = 0;
+        if (pendingValue != null) {
+            System.arraycopy(pendingValue.getBytes(), 0, buffer, offset + numBytes, pendingValue.getLength());
+            buffer[offset + numBytes + pendingValue.getLength()] = (byte) EOL;
+            numBytes += pendingValue.getLength() + 1;
+            pendingValue = null;
         }
 
+        while (numBytes < len) {
+            hasMore = reader.next(key, value);
+            if (!hasMore) {
+                return (numBytes == 0) ? -1 : numBytes;
+            }
+            int sizeOfNextTuple = value.getLength() + 1;
+            if (numBytes + sizeOfNextTuple > len) {
+                // cannot add tuple to current buffer
+                // but the reader has moved pass the fetched tuple
+                // we need to store this for a subsequent read call.
+                // and return this then.
+                pendingValue = value;
+                break;
+            } else {
+                System.arraycopy(value.getBytes(), 0, buffer, offset + numBytes, value.getLength());
+                buffer[offset + numBytes + value.getLength()] = (byte) EOL;
+                numBytes += sizeOfNextTuple;
+            }
+        }
+        return numBytes;
+    }
+
+    @Override
+    public int read() throws IOException {
+        throw new NotImplementedException("Use read(byte[], int, int");
     }
 
 }
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
index 44dab4c..3731eba 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,79 +16,80 @@
 
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
-public class HiveAdapter extends AbstractDatasourceAdapter implements
-		IDatasourceReadAdapter {
+/**
+ * Provides the functionality of fetching data in form of ADM records from a Hive dataset.
+ */
+public class HiveAdapter extends AbstractDatasourceAdapter {
 
-	public static final String HIVE_DATABASE = "database";
-	public static final String HIVE_TABLE = "table";
-	public static final String HIVE_HOME = "hive-home";
-	public static final String HIVE_METASTORE_URI = "metastore-uri";
-	public static final String HIVE_WAREHOUSE_DIR = "warehouse-dir";
-	public static final String HIVE_METASTORE_RAWSTORE_IMPL = "rawstore-impl";
+    private static final long serialVersionUID = 1L;
 
-	private HDFSAdapter hdfsAdapter;
+    public static final String HIVE_DATABASE = "database";
+    public static final String HIVE_TABLE = "table";
+    public static final String HIVE_HOME = "hive-home";
+    public static final String HIVE_METASTORE_URI = "metastore-uri";
+    public static final String HIVE_WAREHOUSE_DIR = "warehouse-dir";
+    public static final String HIVE_METASTORE_RAWSTORE_IMPL = "rawstore-impl";
 
-	@Override
-	public AdapterType getAdapterType() {
-		return AdapterType.READ;
-	}
+    private HDFSAdapter hdfsAdapter;
 
-	@Override
-	public AdapterDataFlowType getAdapterDataFlowType() {
-		return AdapterDataFlowType.PULL;
-	}
-
-	@Override
-	public void configure(Map<String, String> arguments, IAType atype)
-			throws Exception {
-		configuration = arguments;
-		this.atype = atype;
-		configureHadoopAdapter();
-	}
-
-	private void configureHadoopAdapter() throws Exception {
-		String database = configuration.get(HIVE_DATABASE);
-		String tablePath = null;
-		if (database == null) {
-			tablePath = configuration.get(HIVE_WAREHOUSE_DIR) + "/"
-					+ configuration.get(HIVE_TABLE);
-		} else {
-			tablePath = configuration.get(HIVE_WAREHOUSE_DIR) + "/" + tablePath
-					+ ".db" + "/" + configuration.get(HIVE_TABLE);
-		}
-		configuration.put(HDFSAdapter.KEY_HDFS_PATH, tablePath);
-		if (!configuration.get(KEY_FORMAT).equals(FORMAT_DELIMITED_TEXT)) {
-			throw new IllegalArgumentException("format"
-					+ configuration.get(KEY_FORMAT) + " is not supported");
-		}
-
-		if (!(configuration.get(HDFSAdapter.KEY_INPUT_FORMAT).equals(
-				HDFSAdapter.INPUT_FORMAT_TEXT) || configuration.get(
-				HDFSAdapter.KEY_INPUT_FORMAT).equals(
-				HDFSAdapter.INPUT_FORMAT_SEQUENCE))) {
-			throw new IllegalArgumentException("file input format"
-					+ configuration.get(HDFSAdapter.KEY_INPUT_FORMAT)
-					+ " is not supported");
-		}
-
-		hdfsAdapter = new HDFSAdapter();
-		hdfsAdapter.configure(configuration, atype);
-	}
-
-	@Override
-	public void initialize(IHyracksTaskContext ctx) throws Exception {
-		hdfsAdapter.initialize(ctx);
-	}
+    public HiveAdapter(IAType atype) {
+        this.hdfsAdapter = new HDFSAdapter(atype);
+        this.atype = atype;
+    }
 
     @Override
-    public IDataParser getDataParser(int partition) throws Exception {
-        return hdfsAdapter.getDataParser(partition);
+    public AdapterType getAdapterType() {
+        return AdapterType.READ;
+    }
+
+    @Override
+    public void configure(Map<String, String> arguments) throws Exception {
+        configuration = arguments;
+        configureHadoopAdapter();
+    }
+
+    private void configureHadoopAdapter() throws Exception {
+        String database = configuration.get(HIVE_DATABASE);
+        String tablePath = null;
+        if (database == null) {
+            tablePath = configuration.get(HIVE_WAREHOUSE_DIR) + "/" + configuration.get(HIVE_TABLE);
+        } else {
+            tablePath = configuration.get(HIVE_WAREHOUSE_DIR) + "/" + tablePath + ".db" + "/"
+                    + configuration.get(HIVE_TABLE);
+        }
+        configuration.put(HDFSAdapter.KEY_PATH, tablePath);
+        if (!configuration.get(KEY_FORMAT).equals(FORMAT_DELIMITED_TEXT)) {
+            throw new IllegalArgumentException("format" + configuration.get(KEY_FORMAT) + " is not supported");
+        }
+
+        if (!(configuration.get(HDFSAdapter.KEY_INPUT_FORMAT).equals(HDFSAdapter.INPUT_FORMAT_TEXT) || configuration
+                .get(HDFSAdapter.KEY_INPUT_FORMAT).equals(HDFSAdapter.INPUT_FORMAT_SEQUENCE))) {
+            throw new IllegalArgumentException("file input format" + configuration.get(HDFSAdapter.KEY_INPUT_FORMAT)
+                    + " is not supported");
+        }
+
+        hdfsAdapter = new HDFSAdapter(atype);
+        hdfsAdapter.configure(configuration);
+    }
+
+    @Override
+    public void initialize(IHyracksTaskContext ctx) throws Exception {
+        hdfsAdapter.initialize(ctx);
+    }
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        hdfsAdapter.start(partition, writer);
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return hdfsAdapter.getPartitionConstraint();
     }
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java
new file mode 100644
index 0000000..b0dc32f
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IDatasourceAdapter.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.Serializable;
+import java.util.Map;
+
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * A super interface implemented by a data source adapter. An adapter can be a
+ * pull based or push based. This interface provides all common APIs that need
+ * to be implemented by each adapter irrespective of the the kind of
+ * adapter(pull or push).
+ */
+public interface IDatasourceAdapter extends Serializable {
+
+    /**
+     * An adapter can be used to read from an external data source and may also
+     * allow writing to the external data source. This enum type indicates the
+     * kind of operations supported by the adapter.
+     * 
+     * @caller Compiler uses this method to assert the validity of an operation
+     *         on an external dataset. The type of adapter associated with an
+     *         external dataset determines the set of valid operations allowed
+     *         on the dataset.
+     */
+    public enum AdapterType {
+        READ,
+        WRITE,
+        READ_WRITE
+    }
+
+    /**
+     * Returns the type of adapter indicating if the adapter can be used for
+     * reading from an external data source or writing to an external data
+     * source or can be used for both purposes.
+     * 
+     * @Caller: Compiler: The compiler uses this API to verify if an operation
+     *          is supported by the adapter. For example, an write query against
+     *          an external dataset will not compile successfully if the
+     *          external dataset was declared with a read_only adapter.
+     * @see AdapterType
+     * @return
+     */
+    public AdapterType getAdapterType();
+
+    /**
+     * Each adapter instance is configured with a set of parameters that are
+     * key-value pairs. When creating an external or a feed dataset, an adapter
+     * instance is used in conjunction with a set of configuration parameters
+     * for the adapter instance. The configuration parameters are stored
+     * internally with the adapter and can be retrieved using this API.
+     * 
+     * @param propertyKey
+     * @return String the value corresponding to the configuration parameter
+     *         represented by the key- attributeKey.
+     */
+    public String getAdapterProperty(String propertyKey);
+
+    /**
+     * Configures the IDatasourceAdapter instance.
+     * 
+     * @caller Scenario 1) Called during compilation of DDL statement that
+     *         creates a Feed dataset and associates the adapter with the
+     *         dataset. The (key,value) configuration parameters provided as
+     *         part of the DDL statement are collected by the compiler and
+     *         passed on to this method. The adapter may as part of
+     *         configuration connect with the external data source and determine
+     *         the IAType associated with data residing with the external
+     *         datasource.
+     *         Scenario 2) An adapter instance is created by an ASTERIX operator
+     *         that wraps around the adapter instance. The operator, as part of
+     *         its initialization invokes the configure method. The (key,value)
+     *         configuration parameters are passed on to the operator by the
+     *         compiler. Subsequent to the invocation, the wrapping operator
+     *         obtains the partition constraints (if any). In addition, in the
+     *         case of a read adapter, the wrapping operator obtains the output
+     *         ASTERIX type associated with the data that will be output from
+     *         the adapter.
+     * @param arguments
+     *            A map with key-value pairs that contains the configuration
+     *            parameters for the adapter. The arguments are obtained from
+     *            the metadata. Recall that the DDL to create an external
+     *            dataset or a feed dataset requires using an adapter and
+     *            providing all arguments as a set of (key,value) pairs. These
+     *            arguments are put into the metadata.
+     */
+    public void configure(Map<String, String> arguments) throws Exception;
+
+    /**
+     * Returns a list of partition constraints. A partition constraint can be a
+     * requirement to execute at a particular location or could be cardinality
+     * constraints indicating the number of instances that need to run in
+     * parallel. example, a IDatasourceAdapter implementation written for data
+     * residing on the local file system of a node cannot run on any other node
+     * and thus has a location partition constraint. The location partition
+     * constraint can be expressed as a node IP address or a node controller id.
+     * In the former case, the IP address is translated to a node controller id
+     * running on the node with the given IP address.
+     * 
+     * @Caller The wrapper operator configures its partition constraints from
+     *         the constraints obtained from the adapter.
+     */
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception;
+
+    /**
+     * Allows the adapter to establish connection with the external data source
+     * expressing intent for data and providing any configuration parameters
+     * required by the external data source for the transfer of data. This
+     * method does not result in any data transfer, but is a prerequisite for
+     * any subsequent data transfer to happen between the external data source
+     * and the adapter.
+     * 
+     * @caller This method is called by the wrapping ASTERIX operator that
+     * @param ctx
+     * @throws Exception
+     */
+    public void initialize(IHyracksTaskContext ctx) throws Exception;
+
+    /**
+     * Triggers the adapter to begin ingestion of data from the external source.
+     * 
+     * @param partition
+     *            The adapter could be running with a degree of parallelism.
+     *            partition corresponds to the i'th parallel instance.
+     * @param writer
+     *            The instance of frame writer that is used by the adapter to
+     *            write frame to. Adapter packs the fetched bytes (from external source),
+     *            packs them into frames and forwards the frames to an upstream receiving
+     *            operator using the instance of IFrameWriter.
+     * @throws Exception
+     */
+    public void start(int partition, IFrameWriter writer) throws Exception;
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java
new file mode 100644
index 0000000..a1eb075
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/IPullBasedFeedClient.java
@@ -0,0 +1,37 @@
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+
+public interface IPullBasedFeedClient {
+
+    /**
+     * Writes the next fetched tuple into the provided instance of DatatOutput.
+     * 
+     * @param dataOutput
+     *            The receiving channel for the feed client to write ADM records to.
+     * @return true if a record was written to the DataOutput instance
+     *         false if no record was written to the DataOutput instance indicating non-availability of new data.
+     * @throws AsterixException
+     */
+    public boolean nextTuple(DataOutput dataOutput) throws AsterixException;
+
+    /**
+     * Provides logic for any corrective action that feed client needs to execute on
+     * encountering an exception.
+     * 
+     * @param e
+     *            The exception encountered during fetching of data from external source
+     * @throws AsterixException
+     */
+    public void resetOnFailure(Exception e) throws AsterixException;
+
+    /**
+     * Terminates a feed, that is data ingestion activity ceases.
+     * 
+     * @throws Exception
+     */
+    public void stop() throws Exception;
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java
new file mode 100644
index 0000000..3a4b97b
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/ITypedDatasourceAdapter.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import edu.uci.ics.asterix.om.types.ARecordType;
+
+/**
+ * Implemented by datasource adapter that has a fixed output type.
+ * Example @see {PullBasedTwitterAdapter}
+ */
+public interface ITypedDatasourceAdapter extends IDatasourceAdapter {
+
+    public ARecordType getAdapterOutputType();
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
index 2449db0..ef39d45 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/NCFileSystemAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,64 +17,43 @@
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.IOException;
 import java.io.InputStream;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataStreamParser;
-import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
-public class NCFileSystemAdapter extends AbstractDatasourceAdapter implements IDatasourceReadAdapter {
+/**
+ * Factory class for creating an instance of NCFileSystemAdapter. An
+ * NCFileSystemAdapter reads external data residing on the local file system of
+ * an NC.
+ */
+public class NCFileSystemAdapter extends FileSystemBasedAdapter {
 
-    private static final long serialVersionUID = -4154256369973615710L;
-    protected FileSplit[] fileSplits;
+    private static final long serialVersionUID = 1L;
+    private FileSplit[] fileSplits;
 
-    public class Constants {
-        public static final String KEY_SPLITS = "path";
-        public static final String KEY_FORMAT = "format";
-        public static final String KEY_PARSER = "parser";
-        public static final String FORMAT_DELIMITED_TEXT = "delimited-text";
-        public static final String FORMAT_ADM = "adm";
+    public NCFileSystemAdapter(IAType atype) {
+        super(atype);
     }
 
     @Override
-    public void configure(Map<String, String> arguments, IAType atype) throws Exception {
+    public void configure(Map<String, String> arguments) throws Exception {
         this.configuration = arguments;
-        String[] splits = arguments.get(Constants.KEY_SPLITS).split(",");
+        String[] splits = arguments.get(KEY_PATH).split(",");
         configureFileSplits(splits);
-        configurePartitionConstraint();
         configureFormat();
-        if (atype == null) {
-            configureInputType();
-        } else {
-            setInputAType(atype);
-        }
-    }
-
-    public IAType getAType() {
-        return atype;
-    }
-
-    public void setInputAType(IAType atype) {
-        this.atype = atype;
     }
 
     @Override
     public void initialize(IHyracksTaskContext ctx) throws Exception {
         this.ctx = ctx;
-        dataParser.initialize((ARecordType) atype, ctx);
-    }
-
-    @Override
-    public AdapterDataFlowType getAdapterDataFlowType() {
-        return AdapterDataFlowType.PULL;
     }
 
     @Override
@@ -82,62 +61,55 @@
         return AdapterType.READ;
     }
 
+    private void configureFileSplits(String[] splits) throws AsterixException {
+        if (fileSplits == null) {
+            fileSplits = new FileSplit[splits.length];
+            String nodeName;
+            String nodeLocalPath;
+            int count = 0;
+            String trimmedValue;
+            for (String splitPath : splits) {
+                trimmedValue = splitPath.trim();
+                if (!trimmedValue.contains("://")) {
+                    throw new AsterixException("Invalid path: " + splitPath
+                            + "\nUsage- path=\"Host://Absolute File Path\"");
+                }
+                nodeName = trimmedValue.split(":")[0];
+                nodeLocalPath = trimmedValue.split("://")[1];
+                FileSplit fileSplit = new FileSplit(nodeName, new FileReference(new File(nodeLocalPath)));
+                fileSplits[count++] = fileSplit;
+            }
+        }
+    }
+
+    private void configurePartitionConstraint() throws AsterixException {
+        String[] locs = new String[fileSplits.length];
+        String location;
+        for (int i = 0; i < fileSplits.length; i++) {
+            location = getNodeResolver().resolveNode(fileSplits[i].getNodeName());
+            locs[i] = location;
+        }
+        partitionConstraint = new AlgebricksAbsolutePartitionConstraint(locs);
+    }
+
     @Override
-    public IDataParser getDataParser(int partition) throws Exception {
+    public InputStream getInputStream(int partition) throws IOException {
         FileSplit split = fileSplits[partition];
         File inputFile = split.getLocalFile().getFile();
         InputStream in;
         try {
             in = new FileInputStream(inputFile);
+            return in;
         } catch (FileNotFoundException e) {
-            throw new HyracksDataException(e);
-        }
-        if (dataParser instanceof IDataStreamParser) {
-            ((IDataStreamParser) dataParser).setInputStream(in);
-        } else {
-            throw new IllegalArgumentException(" parser not compatible");
-        }
-        return dataParser;
-    }
-
-    private void configureFileSplits(String[] splits) {
-        fileSplits = new FileSplit[splits.length];
-        String nodeName;
-        String nodeLocalPath;
-        int count = 0;
-        for (String splitPath : splits) {
-            nodeName = splitPath.split(":")[0];
-            nodeLocalPath = splitPath.split("://")[1];
-            FileSplit fileSplit = new FileSplit(nodeName, new FileReference(new File(nodeLocalPath)));
-            fileSplits[count++] = fileSplit;
+            throw new IOException(e);
         }
     }
 
-    protected void configureFormat() throws Exception {
-        String parserClass = configuration.get(Constants.KEY_PARSER);
-        if (parserClass == null) {
-            if (Constants.FORMAT_DELIMITED_TEXT.equalsIgnoreCase(configuration.get(KEY_FORMAT))) {
-                parserClass = formatToParserMap.get(FORMAT_DELIMITED_TEXT);
-            } else if (Constants.FORMAT_ADM.equalsIgnoreCase(configuration.get(Constants.KEY_FORMAT))) {
-                parserClass = formatToParserMap.get(Constants.FORMAT_ADM);
-            } else {
-                throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
-            }
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        if (partitionConstraint == null) {
+            configurePartitionConstraint();
         }
-        dataParser = (IDataParser) Class.forName(parserClass).newInstance();
-        dataParser.configure(configuration);
+        return partitionConstraint;
     }
-
-    private void configureInputType() {
-        throw new UnsupportedOperationException(" Cannot resolve input type, operation not supported");
-    }
-
-    private void configurePartitionConstraint() {
-        String[] locs = new String[fileSplits.length];
-        for (int i = 0; i < fileSplits.length; i++) {
-            locs[i] = fileSplits[i].getNodeName();
-        }
-        partitionConstraint = new AlgebricksAbsolutePartitionConstraint(locs);
-    }
-
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java
new file mode 100644
index 0000000..38686c2
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedAdapter.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.nio.ByteBuffer;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
+
+/**
+ * Acts as an abstract class for all pull-based external data adapters.
+ * Captures the common logic for obtaining bytes from an external source
+ * and packing them into frames as tuples.
+ */
+public abstract class PullBasedAdapter extends AbstractDatasourceAdapter implements ITypedDatasourceAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    protected ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(1);
+    protected IPullBasedFeedClient pullBasedFeedClient;
+    protected ARecordType adapterOutputType;
+    private FrameTupleAppender appender;
+    private ByteBuffer frame;
+
+    public abstract IPullBasedFeedClient getFeedClient(int partition) throws Exception;
+
+    @Override
+    public void start(int partition, IFrameWriter writer) throws Exception {
+        appender = new FrameTupleAppender(ctx.getFrameSize());
+        frame = ctx.allocateFrame();
+        appender.reset(frame, true);
+
+        pullBasedFeedClient = getFeedClient(partition);
+        boolean moreData = false;
+        while (true) {
+            tupleBuilder.reset();
+            try {
+                moreData = pullBasedFeedClient.nextTuple(tupleBuilder.getDataOutput());
+                if (moreData) {
+                    tupleBuilder.addFieldEndOffset();
+                    appendTupleToFrame(writer);
+                } else {
+                    FrameUtils.flushFrame(frame, writer);
+                    break;
+                }
+            } catch (Exception failureException) {
+                try {
+                    pullBasedFeedClient.resetOnFailure(failureException);
+                    continue;
+                } catch (Exception recoveryException) {
+                    throw new Exception(recoveryException);
+                }
+            }
+        }
+    }
+
+    /**
+     * Allows an adapter to handle a runtime exception.
+     * @param e exception encountered during runtime
+     * @throws AsterixException
+     */
+    public void resetOnFailure(Exception e) throws AsterixException {
+        pullBasedFeedClient.resetOnFailure(e);
+        tupleBuilder.reset();
+    }
+
+    private void appendTupleToFrame(IFrameWriter writer) throws HyracksDataException {
+        if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0, tupleBuilder.getSize())) {
+            FrameUtils.flushFrame(frame, writer);
+            appender.reset(frame, true);
+            if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0,
+                    tupleBuilder.getSize())) {
+                throw new IllegalStateException();
+            }
+        }
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return adapterOutputType;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java
new file mode 100644
index 0000000..17ecd86
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedFeedClient.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public abstract class PullBasedFeedClient implements IPullBasedFeedClient {
+
+    protected ARecordSerializerDeserializer recordSerDe;
+    protected AMutableRecord mutableRecord;
+    protected boolean messageReceived;
+    protected boolean continueIngestion=true;
+
+    public abstract boolean setNextRecord() throws Exception;
+
+    @Override
+    public boolean nextTuple(DataOutput dataOutput) throws AsterixException {
+        try {
+            boolean newData = setNextRecord();
+            if (newData && continueIngestion) {
+                IAType t = mutableRecord.getType();
+                ATypeTag tag = t.getTypeTag();
+                try {
+                    dataOutput.writeByte(tag.serialize());
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+                recordSerDe.serialize(mutableRecord, dataOutput);
+                return true;
+            }
+            return false;
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    @Override
+    public void stop() {
+        continueIngestion = false;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
index 76d53ab..ebfbcad 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -14,111 +14,67 @@
  */
 package edu.uci.ics.asterix.external.dataset.adapter;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import twitter4j.Query;
-import twitter4j.QueryResult;
-import twitter4j.Tweet;
-import twitter4j.Twitter;
-import twitter4j.TwitterFactory;
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.external.data.parser.AbstractStreamDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataStreamParser;
-import edu.uci.ics.asterix.external.data.parser.IManagedDataParser;
-import edu.uci.ics.asterix.external.data.parser.ManagedDelimitedDataStreamParser;
-import edu.uci.ics.asterix.feed.intake.IFeedClient;
 import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IMutableFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
-public class PullBasedTwitterAdapter extends AbstractDatasourceAdapter implements IDatasourceReadAdapter,
-        IManagedFeedAdapter, IMutableFeedAdapter {
+/**
+ * An adapter that provides the functionality of receiving tweets from the
+ * Twitter service in the form of ADM formatted records.
+ */
+public class PullBasedTwitterAdapter extends PullBasedAdapter implements IManagedFeedAdapter {
 
-    private IDataStreamParser parser;
-    private int parallelism = 1;
-    private boolean stopRequested = false;
-    private boolean alterRequested = false;
-    private Map<String, String> alteredParams = new HashMap<String, String>();
-
+   
+    private static final long serialVersionUID = 1L;
+    
     public static final String QUERY = "query";
     public static final String INTERVAL = "interval";
 
+    private boolean alterRequested = false;
+    private Map<String, String> alteredParams = new HashMap<String, String>();
+    private ARecordType recordType;
+
+    private PullBasedTwitterFeedClient tweetClient;
+
     @Override
-    public void configure(Map<String, String> arguments, IAType atype) throws Exception {
+    public IPullBasedFeedClient getFeedClient(int partition) {
+        return tweetClient;
+    }
+
+    @Override
+    public void configure(Map<String, String> arguments) throws Exception {
         configuration = arguments;
-        this.atype = atype;
-        partitionConstraint = new AlgebricksCountPartitionConstraint(1);
-    }
-
-    @Override
-    public AdapterDataFlowType getAdapterDataFlowType() {
-        return dataFlowType.PULL;
-    }
-
-    @Override
-    public AdapterType getAdapterType() {
-        return adapterType.READ;
+        String[] fieldNames = { "id", "username", "location", "text", "timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                BuiltinType.ASTRING };
+        recordType = new ARecordType("FeedRecordType", fieldNames, fieldTypes, false);
     }
 
     @Override
     public void initialize(IHyracksTaskContext ctx) throws Exception {
         this.ctx = ctx;
+        tweetClient = new PullBasedTwitterFeedClient(ctx, this);
     }
 
     @Override
-    public void beforeSuspend() throws Exception {
-        // TODO Auto-generated method stub
-
+    public AdapterType getAdapterType() {
+        return AdapterType.READ;
     }
 
     @Override
-    public void beforeResume() throws Exception {
-        // TODO Auto-generated method stub
-
+    public void stop()  {
+        tweetClient.stop();
     }
 
     @Override
-    public void beforeStop() throws Exception {
-        // TODO Auto-generated method stub
-
-    }
-
-    @Override
-    public IDataParser getDataParser(int partition) throws Exception {
-        if (parser == null) {
-            parser = new ManagedDelimitedDataStreamParser();
-            ((IManagedDataParser) parser).setAdapter(this);
-            configuration.put(AbstractStreamDataParser.KEY_DELIMITER, "|");
-            parser.configure(configuration);
-            parser.initialize((ARecordType) atype, ctx);
-            TweetClient tweetClient = new TweetClient(ctx.getJobletContext().getApplicationContext().getNodeId(), this);
-            TweetStream tweetStream = new TweetStream(tweetClient, ctx);
-            parser.setInputStream(tweetStream);
-        }
-        return parser;
-    }
-
-    @Override
-    public void stop() throws Exception {
-        stopRequested = true;
-    }
-
-    public boolean isStopRequested() {
-        return stopRequested;
-    }
-
-    @Override
-    public void alter(Map<String, String> properties) throws Exception {
+    public void alter(Map<String, String> properties)  {
         alterRequested = true;
         this.alteredParams = properties;
     }
@@ -135,132 +91,18 @@
         alteredParams = null;
         alterRequested = false;
     }
-}
 
-class TweetStream extends InputStream {
-
-    private ByteBuffer buffer;
-    private int capacity;
-    private TweetClient tweetClient;
-    private List<String> tweets = new ArrayList<String>();
-
-    public TweetStream(TweetClient tweetClient, IHyracksTaskContext ctx) throws Exception {
-        capacity = ctx.getFrameSize();
-        buffer = ByteBuffer.allocate(capacity);
-        this.tweetClient = tweetClient;
-        initialize();
-    }
-
-    private void initialize() throws Exception {
-        boolean hasMore = tweetClient.next(tweets);
-        if (!hasMore) {
-            buffer.limit(0);
-        } else {
-            buffer.position(0);
-            buffer.limit(capacity);
-            for (String tweet : tweets) {
-                buffer.put(tweet.getBytes());
-                buffer.put("\n".getBytes());
-            }
-            buffer.flip();
-        }
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return recordType;
     }
 
     @Override
-    public int read() throws IOException {
-        if (!buffer.hasRemaining()) {
-
-            boolean hasMore = tweetClient.next(tweets);
-            if (!hasMore) {
-                return -1;
-            }
-            buffer.position(0);
-            buffer.limit(capacity);
-            for (String tweet : tweets) {
-                buffer.put(tweet.getBytes());
-                buffer.put("\n".getBytes());
-            }
-            buffer.flip();
-            return buffer.get();
-        } else {
-            return buffer.get();
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        if (partitionConstraint == null) {
+            partitionConstraint = new AlgebricksCountPartitionConstraint(1);
         }
-
-    }
-}
-
-class TweetClient implements IFeedClient {
-
-    private String query;
-    private int timeInterval = 5;
-    private Character delimiter = '|';
-    private long id = 0;
-    private String id_prefix;
-
-    private final PullBasedTwitterAdapter adapter;
-
-    public TweetClient(String id_prefix, PullBasedTwitterAdapter adapter) {
-        this.id_prefix = id_prefix;
-        this.adapter = adapter;
-        initialize(adapter.getConfiguration());
-    }
-
-    private void initialize(Map<String, String> params) {
-        this.query = params.get(PullBasedTwitterAdapter.QUERY);
-        if (params.get(PullBasedTwitterAdapter.INTERVAL) != null) {
-            this.timeInterval = Integer.parseInt(params.get(PullBasedTwitterAdapter.INTERVAL));
-        }
-    }
-
-    @Override
-    public boolean next(List<String> tweets) {
-        try {
-            if (adapter.isStopRequested()) {
-                return false;
-            }
-            if (adapter.isAlterRequested()) {
-                initialize(((PullBasedTwitterAdapter) adapter).getAlteredParams());
-                adapter.postAlteration();
-            }
-            Thread.currentThread().sleep(1000 * timeInterval);
-            tweets.clear();
-            Twitter twitter = new TwitterFactory().getInstance();
-            QueryResult result = twitter.search(new Query(query));
-            List<Tweet> sourceTweets = result.getTweets();
-            for (Tweet tweet : sourceTweets) {
-                String tweetContent = formFeedTuple(tweet);
-                tweets.add(tweetContent);
-                System.out.println(tweetContent);
-            }
-
-        } catch (Exception e) {
-            e.printStackTrace();
-            return false;
-        }
-        return true;
-    }
-
-    public String formFeedTuple(Object tweetObject) {
-        Tweet tweet = (Tweet) tweetObject;
-        StringBuilder builder = new StringBuilder();
-        builder.append(id_prefix + ":" + id);
-        builder.append(delimiter);
-        builder.append(tweet.getFromUserId());
-        builder.append(delimiter);
-        builder.append("Orange County");
-        builder.append(delimiter);
-        builder.append(escapeChars(tweet));
-        builder.append(delimiter);
-        builder.append(tweet.getCreatedAt().toString());
-        id++;
-        return new String(builder);
-    }
-
-    private String escapeChars(Tweet tweet) {
-        if (tweet.getText().contains("\n")) {
-            return tweet.getText().replace("\n", " ");
-        }
-        return tweet.getText();
+        return partitionConstraint;
     }
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java
new file mode 100644
index 0000000..2a07472
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/PullBasedTwitterFeedClient.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.Queue;
+
+import twitter4j.Query;
+import twitter4j.QueryResult;
+import twitter4j.Tweet;
+import twitter4j.Twitter;
+import twitter4j.TwitterException;
+import twitter4j.TwitterFactory;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * An implementation of @see {PullBasedFeedClient} for the Twitter service.
+ * The feed client fetches data from Twitter service by sending request at
+ * regular (configurable) interval.
+ */
+public class PullBasedTwitterFeedClient extends PullBasedFeedClient {
+
+    private String keywords;
+    private Query query;
+    private long id = 0;
+    private String id_prefix;
+    private Twitter twitter;
+    private int requestInterval = 10; // seconds
+    private Queue<Tweet> tweetBuffer = new LinkedList<Tweet>();
+
+    IAObject[] mutableFields;
+    String[] tupleFieldValues;
+    private ARecordType recordType;
+
+    public PullBasedTwitterFeedClient(IHyracksTaskContext ctx, PullBasedTwitterAdapter adapter) {
+        this.id_prefix = ctx.getJobletContext().getApplicationContext().getNodeId();
+        twitter = new TwitterFactory().getInstance();
+        mutableFields = new IAObject[] { new AMutableString(null), new AMutableString(null), new AMutableString(null),
+                new AMutableString(null), new AMutableString(null) };
+        recordType = adapter.getAdapterOutputType();
+        recordSerDe = new ARecordSerializerDeserializer(recordType);
+        mutableRecord = new AMutableRecord(recordType, mutableFields);
+        initialize(adapter.getConfiguration());
+        tupleFieldValues = new String[recordType.getFieldNames().length];
+    }
+
+    public void initialize(Map<String, String> params) {
+        this.keywords = params.get(PullBasedTwitterAdapter.QUERY);
+        this.query = new Query(keywords);
+        query.setRpp(100);
+    }
+
+    private Tweet getNextTweet() throws TwitterException, InterruptedException {
+        if (tweetBuffer.isEmpty()) {
+            QueryResult result;
+            Thread.sleep(1000 * requestInterval);
+            result = twitter.search(query);
+            tweetBuffer.addAll(result.getTweets());
+        }
+        return tweetBuffer.remove();
+    }
+
+    public ARecordType getRecordType() {
+        return recordType;
+    }
+
+    public AMutableRecord getMutableRecord() {
+        return mutableRecord;
+    }
+
+    @Override
+    public boolean setNextRecord() throws Exception {
+        Tweet tweet;
+        tweet = getNextTweet();
+        if (tweet == null) {
+            return false;
+        }
+        int numFields = recordType.getFieldNames().length;
+
+        tupleFieldValues[0] = id_prefix + ":" + id;
+        tupleFieldValues[1] = tweet.getFromUser();
+        tupleFieldValues[2] = tweet.getLocation() == null ? "" : tweet.getLocation();
+        tupleFieldValues[3] = tweet.getText();
+        tupleFieldValues[4] = tweet.getCreatedAt().toString();
+        for (int i = 0; i < numFields; i++) {
+            ((AMutableString) mutableFields[i]).setValue(tupleFieldValues[i]);
+            mutableRecord.setValueAtPos(i, mutableFields[i]);
+        }
+        id++;
+        return true;
+    }
+
+    @Override
+    public void resetOnFailure(Exception e) throws AsterixException {
+        // TOOO: implement resetting logic for Twitter
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
index 0cf8e95..611183c 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,29 +19,29 @@
 import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceAdapter;
-import edu.uci.ics.asterix.external.data.parser.IDataParser;
-import edu.uci.ics.asterix.external.data.parser.IDataStreamParser;
-import edu.uci.ics.asterix.external.data.parser.IManagedDataParser;
-import edu.uci.ics.asterix.external.data.parser.ManagedDelimitedDataStreamParser;
-import edu.uci.ics.asterix.feed.intake.FeedStream;
-import edu.uci.ics.asterix.feed.intake.IFeedClient;
-import edu.uci.ics.asterix.feed.intake.RSSFeedClient;
 import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IMutableFeedAdapter;
 import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksCountPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
-public class RSSFeedAdapter extends AbstractDatasourceAdapter implements IDatasourceAdapter, IManagedFeedAdapter,
-        IMutableFeedAdapter {
+/**
+ * RSSFeedAdapter provides the functionality of fetching an RSS based feed.
+ */
+public class RSSFeedAdapter extends PullBasedAdapter implements IManagedFeedAdapter {
+
+    private static final long serialVersionUID = 1L;
 
     private List<String> feedURLs = new ArrayList<String>();
     private boolean isStopRequested = false;
     private boolean isAlterRequested = false;
     private Map<String, String> alteredParams = new HashMap<String, String>();
     private String id_prefix = "";
+    private ARecordType recordType;
+
+    private IPullBasedFeedClient rssFeedClient;
 
     public static final String KEY_RSS_URL = "url";
     public static final String KEY_INTERVAL = "interval";
@@ -55,74 +55,34 @@
     }
 
     @Override
-    public IDataParser getDataParser(int partition) throws Exception {
-        if (dataParser == null) {
-            dataParser = new ManagedDelimitedDataStreamParser();
-            ((IManagedDataParser) dataParser).setAdapter(this);
-            dataParser.initialize((ARecordType) atype, ctx);
-            IFeedClient feedClient = new RSSFeedClient(this, feedURLs.get(partition), id_prefix);
-            FeedStream feedStream = new FeedStream(feedClient, ctx);
-            ((IDataStreamParser) dataParser).setInputStream(feedStream);
-        }
-        return dataParser;
-    }
-
-    @Override
-    public void alter(Map<String, String> properties) throws Exception {
+    public void alter(Map<String, String> properties) {
         isAlterRequested = true;
         this.alteredParams = properties;
         reconfigure(properties);
     }
 
-    public void postAlteration() {
-        alteredParams = null;
-        isAlterRequested = false;
-    }
-
     @Override
-    public void beforeSuspend() throws Exception {
-        // TODO Auto-generated method stub
-
-    }
-
-    @Override
-    public void beforeResume() throws Exception {
-        // TODO Auto-generated method stub
-
-    }
-
-    @Override
-    public void beforeStop() throws Exception {
-        // TODO Auto-generated method stub
-
-    }
-
-    @Override
-    public void stop() throws Exception {
+    public void stop() {
         isStopRequested = true;
     }
 
     @Override
-    public AdapterDataFlowType getAdapterDataFlowType() {
-        return AdapterDataFlowType.PULL;
-    }
-
-    @Override
     public AdapterType getAdapterType() {
         return AdapterType.READ;
     }
 
     @Override
-    public void configure(Map<String, String> arguments, IAType atype) throws Exception {
+    public void configure(Map<String, String> arguments) throws Exception {
         configuration = arguments;
-        this.atype = atype;
         String rssURLProperty = configuration.get(KEY_RSS_URL);
         if (rssURLProperty == null) {
             throw new IllegalArgumentException("no rss url provided");
         }
         initializeFeedURLs(rssURLProperty);
         configurePartitionConstraints();
-
+        recordType = new ARecordType("FeedRecordType", new String[] { "id", "title", "description", "link" },
+                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING },
+                false);
     }
 
     private void initializeFeedURLs(String rssURLProperty) {
@@ -158,4 +118,25 @@
         return alteredParams;
     }
 
+    @Override
+    public IPullBasedFeedClient getFeedClient(int partition) throws Exception {
+        if (rssFeedClient == null) {
+            rssFeedClient = new RSSFeedClient(this, feedURLs.get(partition), id_prefix);
+        }
+        return rssFeedClient;
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return recordType;
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        if (partitionConstraint == null) {
+            configurePartitionConstraints();
+        }
+        return partitionConstraint;
+    }
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java
new file mode 100644
index 0000000..366b4af
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/RSSFeedClient.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.dataset.adapter;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+
+import com.sun.syndication.feed.synd.SyndEntryImpl;
+import com.sun.syndication.feed.synd.SyndFeed;
+import com.sun.syndication.fetcher.FeedFetcher;
+import com.sun.syndication.fetcher.FetcherEvent;
+import com.sun.syndication.fetcher.FetcherListener;
+import com.sun.syndication.fetcher.impl.FeedFetcherCache;
+import com.sun.syndication.fetcher.impl.HashMapFeedInfoCache;
+import com.sun.syndication.fetcher.impl.HttpURLFeedFetcher;
+
+import edu.uci.ics.asterix.om.base.AMutableRecord;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.IAObject;
+import edu.uci.ics.asterix.om.types.ARecordType;
+
+/**
+ * An implementation of @see {PullBasedFeedClient} responsible for
+ * fetching from an RSS feed source at regular interval.
+ */
+@SuppressWarnings("rawtypes")
+public class RSSFeedClient extends PullBasedFeedClient {
+
+    private final String feedURL;
+    private long id = 0;
+    private String idPrefix;
+    private boolean feedModified = false;
+
+    private Queue<SyndEntryImpl> rssFeedBuffer = new LinkedList<SyndEntryImpl>();
+
+    IAObject[] mutableFields;
+
+    private final FeedFetcherCache feedInfoCache;
+    private final FeedFetcher fetcher;
+    private final FetcherEventListenerImpl listener;
+    private final URL feedUrl;
+    private ARecordType recordType;
+    String[] tupleFieldValues;
+
+    public boolean isFeedModified() {
+        return feedModified;
+    }
+
+    public void setFeedModified(boolean feedModified) {
+        this.feedModified = feedModified;
+    }
+
+    public RSSFeedClient(RSSFeedAdapter adapter, String feedURL, String id_prefix) throws MalformedURLException {
+        this.feedURL = feedURL;
+        this.idPrefix = id_prefix;
+        feedUrl = new URL(feedURL);
+        feedInfoCache = HashMapFeedInfoCache.getInstance();
+        fetcher = new HttpURLFeedFetcher(feedInfoCache);
+        listener = new FetcherEventListenerImpl(this);
+        fetcher.addFetcherEventListener(listener);
+        mutableFields = new IAObject[] { new AMutableString(null), new AMutableString(null), new AMutableString(null),
+                new AMutableString(null) };
+        recordType = adapter.getAdapterOutputType();
+        mutableRecord = new AMutableRecord(recordType, mutableFields);
+        tupleFieldValues = new String[recordType.getFieldNames().length];
+    }
+
+    @Override
+    public boolean setNextRecord() throws Exception {
+        SyndEntryImpl feedEntry = getNextRSSFeed();
+        if (feedEntry == null) {
+            return false;
+        }
+        tupleFieldValues[0] = idPrefix + ":" + id;
+        tupleFieldValues[1] = feedEntry.getTitle();
+        tupleFieldValues[2] = feedEntry.getDescription().getValue();
+        tupleFieldValues[3] = feedEntry.getLink();
+        int numFields = recordType.getFieldNames().length;
+        for (int i = 0; i < numFields; i++) {
+            ((AMutableString) mutableFields[i]).setValue(tupleFieldValues[i]);
+            mutableRecord.setValueAtPos(i, mutableFields[i]);
+        }
+        id++;
+        return true;
+    }
+
+    private SyndEntryImpl getNextRSSFeed() throws Exception {
+        if (rssFeedBuffer.isEmpty()) {
+            fetchFeed();
+        }
+        if (rssFeedBuffer.isEmpty()) {
+            return null;
+        } else {
+            return rssFeedBuffer.remove();
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private void fetchFeed() {
+        try {
+            System.err.println("Retrieving feed " + feedURL);
+            // Retrieve the feed.
+            // We will get a Feed Polled Event and then a
+            // Feed Retrieved event (assuming the feed is valid)
+            SyndFeed feed = fetcher.retrieveFeed(feedUrl);
+            if (feedModified) {
+                System.err.println(feedUrl + " retrieved");
+                System.err.println(feedUrl + " has a title: " + feed.getTitle() + " and contains "
+                        + feed.getEntries().size() + " entries.");
+
+                List fetchedFeeds = feed.getEntries();
+                rssFeedBuffer.addAll(fetchedFeeds);
+            }
+        } catch (Exception ex) {
+            System.out.println("ERROR: " + ex.getMessage());
+            ex.printStackTrace();
+        }
+    }
+
+    @Override
+    public void resetOnFailure(Exception e) {
+        // TODO Auto-generated method stub
+
+    }
+
+}
+
+class FetcherEventListenerImpl implements FetcherListener {
+
+    private final IPullBasedFeedClient feedClient;
+
+    public FetcherEventListenerImpl(IPullBasedFeedClient feedClient) {
+        this.feedClient = feedClient;
+    }
+
+    /**
+     * @see com.sun.syndication.fetcher.FetcherListener#fetcherEvent(com.sun.syndication.fetcher.FetcherEvent)
+     */
+    public void fetcherEvent(FetcherEvent event) {
+        String eventType = event.getEventType();
+        if (FetcherEvent.EVENT_TYPE_FEED_POLLED.equals(eventType)) {
+            System.err.println("\tEVENT: Feed Polled. URL = " + event.getUrlString());
+        } else if (FetcherEvent.EVENT_TYPE_FEED_RETRIEVED.equals(eventType)) {
+            System.err.println("\tEVENT: Feed Retrieved. URL = " + event.getUrlString());
+            ((RSSFeedClient) feedClient).setFeedModified(true);
+        } else if (FetcherEvent.EVENT_TYPE_FEED_UNCHANGED.equals(eventType)) {
+            System.err.println("\tEVENT: Feed Unchanged. URL = " + event.getUrlString());
+            ((RSSFeedClient) feedClient).setFeedModified(true);
+        }
+    }
+}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java
new file mode 100644
index 0000000..537bf07
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/AlterFeedMessage.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+import java.util.Map;
+
+/**
+ * A feed control message containing the altered values for
+ * adapter configuration parameters. This message is dispatched
+ * to all runtime instances of the feed's adapter.
+ */
+public class AlterFeedMessage extends FeedMessage {
+
+    private static final long serialVersionUID = 1L;
+
+    private final Map<String, String> alteredConfParams;
+
+    public AlterFeedMessage(Map<String, String> alteredConfParams) {
+        super(MessageType.ALTER);
+        this.alteredConfParams = alteredConfParams;
+    }
+
+    @Override
+    public MessageType getMessageType() {
+        return MessageType.ALTER;
+    }
+
+    public Map<String, String> getAlteredConfParams() {
+        return alteredConfParams;
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java
new file mode 100644
index 0000000..b1889ee
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedId.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+import java.io.Serializable;
+
+/**
+ * A unique identifier for a feed (dataset).
+ */
+public class FeedId implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private final String dataverse;
+    private final String dataset;
+    private final int hashcode;
+
+    public FeedId(String dataverse, String dataset) {
+        this.dataset = dataset;
+        this.dataverse = dataverse;
+        this.hashcode = (dataverse + "." + dataset).hashCode();
+    }
+
+    public String getDataverse() {
+        return dataverse;
+    }
+
+    public String getDataset() {
+        return dataset;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || !(o instanceof FeedId)) {
+            return false;
+        }
+        if (((FeedId) o).getDataset().equals(dataset) && ((FeedId) o).getDataverse().equals(dataverse)) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return hashcode;
+    }
+
+    @Override
+    public String toString() {
+        return dataverse + "." + dataset;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java
new file mode 100644
index 0000000..8314267
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedManager.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.LinkedBlockingQueue;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+
+/**
+ * Handle (de-)registration of feeds for delivery of control messages.
+ */
+public class FeedManager implements IFeedManager {
+
+    public static FeedManager INSTANCE = new FeedManager();
+
+    private FeedManager() {
+
+    }
+
+    private Map<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>> outGoingMsgQueueMap = new HashMap<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>>();
+
+    @Override
+    public void deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws AsterixException {
+        Set<LinkedBlockingQueue<IFeedMessage>> operatorQueues = outGoingMsgQueueMap.get(feedId);
+        try {
+            if (operatorQueues != null) {
+                for (LinkedBlockingQueue<IFeedMessage> queue : operatorQueues) {
+                    queue.put(feedMessage);
+                }
+            } 
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    @Override
+    public void registerFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
+        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
+        if (feedQueues == null) {
+            feedQueues = new HashSet<LinkedBlockingQueue<IFeedMessage>>();
+        }
+        feedQueues.add(queue);
+        outGoingMsgQueueMap.put(feedId, feedQueues);
+    }
+
+    @Override
+    public void unregisterFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
+        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
+        if (feedQueues == null || !feedQueues.contains(queue)) {
+            throw new IllegalArgumentException(" Unable to de-register feed message queue. Unknown feedId " + feedId);
+        }
+        feedQueues.remove(queue);
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java
new file mode 100644
index 0000000..af84d4f
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/FeedMessage.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+/**
+ * A control message that can be sent to the runtime instance of a 
+ * feed's adapter. 
+ */
+public class FeedMessage implements IFeedMessage {
+
+    private static final long serialVersionUID = 1L;
+
+    protected MessageType messageType;
+
+    public FeedMessage(MessageType messageType) {
+        this.messageType = messageType;
+    }
+
+    public MessageType getMessageType() {
+        return messageType;
+    }
+
+    public void setMessageType(MessageType messageType) {
+        this.messageType = messageType;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java
new file mode 100644
index 0000000..587d5a7
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedManager.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+import java.util.concurrent.LinkedBlockingQueue;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+
+/**
+ * Handle (de-)registration of feeds for delivery of control messages.
+ */
+public interface IFeedManager {
+
+    /**
+     * Register an input message queue for a feed specified by feedId.
+     * All messages sent to a feed are directed to the registered queue(s).
+     * 
+     * @param feedId
+     *            an identifier for the feed dataset.
+     * @param queue
+     *            an input message queue for receiving control messages.
+     */
+    public void registerFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
+
+    /**
+     * Unregister an input message queue for a feed specified by feedId.
+     * A feed prior to finishing should unregister all previously registered queue(s)
+     * as it is no longer active and thus need not process any control messages.
+     * 
+     * @param feedId
+     *            an identifier for the feed dataset.
+     * @param queue
+     *            an input message queue for receiving control messages.
+     */
+    public void unregisterFeedMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
+
+    /**
+     * Deliver a message to a feed with a given feedId.
+     * 
+     * @param feedId
+     *            identifier for the feed dataset.
+     * @param feedMessage
+     *            control message that needs to be delivered.
+     * @throws Exception
+     */
+    public void deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws AsterixException;
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
new file mode 100644
index 0000000..9e1e907
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/feed/lifecycle/IFeedMessage.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.feed.lifecycle;
+
+import java.io.Serializable;
+
+public interface IFeedMessage extends Serializable {
+
+    public enum MessageType {
+        STOP,
+        ALTER,
+    }
+
+    public MessageType getMessageType();
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java
new file mode 100644
index 0000000..ff6bbdf
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+import java.util.Random;
+import java.util.Set;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.util.AsterixRuntimeUtil;
+
+/**
+ * Resolves a value (DNS/IP Address) to the id of a Node Controller running at the location.
+ */
+public class DNSResolver implements INodeResolver {
+
+    private static Random random = new Random();
+
+    @Override
+    public String resolveNode(String value) throws AsterixException {
+        try {
+            String ipAddress = AsterixRuntimeUtil.getIPAddress(value);
+            Set<String> nodeControllers = AsterixRuntimeUtil.getNodeControllersOnIP(ipAddress);
+            if (nodeControllers == null || nodeControllers.isEmpty()) {
+                throw new AsterixException(" No node controllers found at the address: " + value);
+            }
+            String chosenNCId = nodeControllers.toArray(new String[]{})[random
+                    .nextInt(nodeControllers.size())];
+            return chosenNCId;
+        } catch (AsterixException ae) {
+            throw ae;
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+    }
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolverFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolverFactory.java
new file mode 100644
index 0000000..6b56601
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolverFactory.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+/**
+ * Factory for creating instance of {@link DNSResolver}
+ */
+public class DNSResolverFactory implements INodeResolverFactory {
+
+    private static final INodeResolver INSTANCE = new DNSResolver();
+
+    @Override
+    public INodeResolver createNodeResolver() {
+        return INSTANCE;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java
new file mode 100644
index 0000000..d0e8a64
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+
+/**
+ * A policy for resolving a name to a node controller id.   
+ *
+ */
+public interface INodeResolver {
+
+    /**
+     * Resolve a passed-in value to a node controller id.
+     * 
+     * @param value
+     *            string to be resolved
+     * @return resolved result (a node controller id)
+     * @throws AsterixException
+     */
+    public String resolveNode(String value) throws AsterixException;
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java
new file mode 100644
index 0000000..2abde9c
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+/**
+ * Factory for creating an instance of INodeResolver
+ * 
+ *  @see INodeResolver
+ */
+public interface INodeResolverFactory {
+
+    /**
+     * Create an instance of {@link INodeResolver}
+     * 
+     * @return an instance of INodeResolver
+     */
+    public INodeResolver createNodeResolver();
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentitiyResolverFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentitiyResolverFactory.java
new file mode 100644
index 0000000..5161203
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentitiyResolverFactory.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+/**
+ * Factory for creating an instance of @see {IdentityResolver}.
+ * Identity resolver simply resolves a value to itself and is useful when value being resolved
+ * is a node controller id.
+ */
+public class IdentitiyResolverFactory implements INodeResolverFactory {
+
+    private static INodeResolver INSTANCE = new IdentityResolver();
+
+    @Override
+    public INodeResolver createNodeResolver() {
+        return INSTANCE;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentityResolver.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentityResolver.java
new file mode 100644
index 0000000..7ff1f9b
--- /dev/null
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/IdentityResolver.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.external.util;
+
+/**
+ * Identity resolver simply resolves a value to itself and is useful when value being resolved
+ * is a node controller id.
+ */
+public class IdentityResolver implements INodeResolver {
+
+    @Override
+    public String resolveNode(String value) {
+        return value;
+    }
+
+}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/AlterFeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/AlterFeedMessage.java
deleted file mode 100644
index d34af73..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/AlterFeedMessage.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.comm;
-
-import java.util.Map;
-
-public class AlterFeedMessage extends FeedMessage {
-
-    private final Map<String, String> alteredConfParams;
-
-    public AlterFeedMessage(Map<String, String> alteredConfParams) {
-        super(MessageType.ALTER);
-        messageResponseMode = MessageResponseMode.SYNCHRONOUS;
-        this.alteredConfParams = alteredConfParams;
-    }
-
-    public AlterFeedMessage(MessageResponseMode mode, Map<String, String> alteredConfParams) {
-        super(MessageType.ALTER);
-        messageResponseMode = mode;
-        this.alteredConfParams = alteredConfParams;
-    }
-
-    @Override
-    public MessageResponseMode getMessageResponseMode() {
-        return messageResponseMode;
-    }
-
-    @Override
-    public MessageType getMessageType() {
-        return MessageType.ALTER;
-    }
-
-    public Map<String, String> getAlteredConfParams() {
-        return alteredConfParams;
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/FeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/FeedMessage.java
deleted file mode 100644
index 1f1a020..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/FeedMessage.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.comm;
-
-public  class FeedMessage implements IFeedMessage {
-
-    protected MessageResponseMode messageResponseMode = MessageResponseMode.SYNCHRONOUS;
-    protected MessageType messageType;
-    
-
-    public FeedMessage(MessageType messageType){
-        this.messageType = messageType;
-    }
-
-
-    public MessageResponseMode getMessageResponseMode() {
-        return messageResponseMode;
-    }
-
-
-    public void setMessageResponseMode(MessageResponseMode messageResponseMode) {
-        this.messageResponseMode = messageResponseMode;
-    }
-
-
-    public MessageType getMessageType() {
-        return messageType;
-    }
-
-
-    public void setMessageType(MessageType messageType) {
-        this.messageType = messageType;
-    }
-    
-   
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/IFeedMessage.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/IFeedMessage.java
deleted file mode 100644
index dfb4f91..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/comm/IFeedMessage.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.comm;
-
-import java.io.Serializable;
-
-public interface IFeedMessage extends Serializable {
-
-    public enum MessageResponseMode {
-        SYNCHRONOUS,
-        ASYNCHRONOUS,
-    }
-
-    public enum MessageType {
-        STOP,
-        SUSPEND,
-        RESUME,
-        ALTER,
-    }
-
-    public MessageResponseMode getMessageResponseMode();
-
-    public MessageType getMessageType();
-    
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/AbstractFeedStream.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/AbstractFeedStream.java
deleted file mode 100644
index 3d3856d..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/AbstractFeedStream.java
+++ /dev/null
@@ -1,62 +0,0 @@
-package edu.uci.ics.asterix.feed.intake;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.util.List;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-
-public abstract class AbstractFeedStream extends InputStream {
-
-	private ByteBuffer buffer;
-	private int capacity;
-	private IFeedClient feedClient;
-	private List<String> feedObjects;
-
-	public AbstractFeedStream(IFeedClient feedClient, IHyracksTaskContext ctx)
-			throws Exception {
-		capacity = ctx.getFrameSize();
-		buffer = ByteBuffer.allocate(capacity);
-		this.feedClient = feedClient;
-		initialize();
-	}
-
-	@Override
-	public int read() throws IOException {
-		if (!buffer.hasRemaining()) {
-
-			boolean hasMore = feedClient.next(feedObjects);
-			if (!hasMore) {
-				return -1;
-			}
-			buffer.position(0);
-			buffer.limit(capacity);
-			for (String feed : feedObjects) {
-				buffer.put(feed.getBytes());
-				buffer.put("\n".getBytes());
-			}
-			buffer.flip();
-			return buffer.get();
-		} else {
-			return buffer.get();
-		}
-
-	}
-
-	private void initialize() throws Exception {
-		boolean hasMore = feedClient.next(feedObjects);
-		if (!hasMore) {
-			buffer.limit(0);
-		} else {
-			buffer.position(0);
-			buffer.limit(capacity);
-			for (String feed : feedObjects) {
-				buffer.put(feed.getBytes());
-				buffer.put("\n".getBytes());
-			}
-			buffer.flip();
-		}
-	}
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/FeedStream.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/FeedStream.java
deleted file mode 100644
index 9d75182..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/FeedStream.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package edu.uci.ics.asterix.feed.intake;
-
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-
-
-public class FeedStream extends AbstractFeedStream {
-
-	public FeedStream(IFeedClient feedClient, IHyracksTaskContext ctx)
-			throws Exception {
-		super(feedClient, ctx);
-	}
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/IFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/IFeedClient.java
deleted file mode 100644
index b67561d..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/IFeedClient.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package edu.uci.ics.asterix.feed.intake;
-
-import java.util.List;
-
-public interface IFeedClient {
-
-	public boolean next(List<String> list);
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/RSSFeedClient.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/RSSFeedClient.java
deleted file mode 100644
index 2e77499..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/intake/RSSFeedClient.java
+++ /dev/null
@@ -1,158 +0,0 @@
-package edu.uci.ics.asterix.feed.intake;
-
-import java.net.URL;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import com.sun.syndication.feed.synd.SyndEntryImpl;
-import com.sun.syndication.feed.synd.SyndFeed;
-import com.sun.syndication.fetcher.FeedFetcher;
-import com.sun.syndication.fetcher.FetcherEvent;
-import com.sun.syndication.fetcher.FetcherListener;
-import com.sun.syndication.fetcher.impl.FeedFetcherCache;
-import com.sun.syndication.fetcher.impl.HashMapFeedInfoCache;
-import com.sun.syndication.fetcher.impl.HttpURLFeedFetcher;
-
-import edu.uci.ics.asterix.external.dataset.adapter.RSSFeedAdapter;
-
-@SuppressWarnings("rawtypes")
-public class RSSFeedClient  implements IFeedClient {
-
-	private final String feedURL;
-	private int timeInterval = 1;
-	private Character delimiter = '|';
-	private long id = 0;
-	private String id_prefix;
-	private boolean feedModified = false;
-	private RSSFeedAdapter adapter;
-
-	public boolean isFeedModified() {
-		return feedModified;
-	}
-
-	public void setFeedModified(boolean feedModified) {
-		this.feedModified = feedModified;
-	}
-
-	public RSSFeedClient(RSSFeedAdapter adapter, String feedURL,
-			String id_prefix) {
-		this.adapter = adapter;
-		this.feedURL = feedURL;
-		this.id_prefix = id_prefix;
-	}
-
-	private void initialize(Map<String, String> params) {
-		if (params.get(adapter.KEY_INTERVAL) != null) {
-			this.timeInterval = Integer.parseInt(params
-					.get(adapter.KEY_INTERVAL));
-		}
-	}
-
-	@Override
-	public boolean next(List<String> feeds) {
-		try {
-			if (adapter.isStopRequested()) {
-				return false;
-			}
-			if (adapter.isAlterRequested()) {
-				initialize(adapter.getAlteredParams());
-				adapter.postAlteration();
-			}
-			Thread.sleep(timeInterval * 1000);
-			feeds.clear();
-			try {
-				getFeed(feeds);
-			} catch (Exception te) {
-				te.printStackTrace();
-				System.out.println("Failed to get feed: " + te.getMessage());
-			}
-		} catch (Exception e) {
-			e.printStackTrace();
-		}
-		return true;
-	}
-
-	public String formFeedTuple(Object entry) {
-		StringBuilder builder = new StringBuilder();
-		builder.append(id_prefix + ":" + id);
-		builder.append(delimiter);
-		builder.append(((SyndEntryImpl) entry).getTitle());
-		builder.append(delimiter);
-		builder.append(((SyndEntryImpl) entry).getLink());
-		id++;
-		return new String(builder);
-	}
-
-	private void getFeed(List<String> feeds) {
-		try {
-			URL feedUrl = new URL(feedURL);
-			FeedFetcherCache feedInfoCache = HashMapFeedInfoCache.getInstance();
-			FeedFetcher fetcher = new HttpURLFeedFetcher(feedInfoCache);
-
-			FetcherEventListenerImpl listener = new FetcherEventListenerImpl(
-					this);
-			fetcher.addFetcherEventListener(listener);
-			System.err.println("Retrieving feed " + feedUrl);
-			// Retrieve the feed.
-			// We will get a Feed Polled Event and then a
-			// Feed Retrieved event (assuming the feed is valid)
-			SyndFeed feed = fetcher.retrieveFeed(feedUrl);
-			if (feedModified) {
-				System.err.println(feedUrl + " retrieved");
-				System.err.println(feedUrl + " has a title: " + feed.getTitle()
-						+ " and contains " + feed.getEntries().size()
-						+ " entries.");
-
-				List fetchedFeeds = feed.getEntries();
-				Iterator feedIterator = fetchedFeeds.iterator();
-				while (feedIterator.hasNext()) {
-					SyndEntryImpl feedEntry = (SyndEntryImpl) feedIterator
-							.next();
-					String feedContent = formFeedTuple(feedEntry);
-					feeds.add(escapeChars(feedContent));
-					System.out.println(feedContent);
-				}
-			}
-		} catch (Exception ex) {
-			System.out.println("ERROR: " + ex.getMessage());
-			ex.printStackTrace();
-		}
-	}
-
-	private String escapeChars(String content) {
-		if (content.contains("\n")) {
-			return content.replace("\n", " ");
-		}
-		return content;
-	}
-
-}
-
-class FetcherEventListenerImpl implements FetcherListener {
-
-	private final IFeedClient feedClient;
-
-	public FetcherEventListenerImpl(IFeedClient feedClient) {
-		this.feedClient = feedClient;
-	}
-
-	/**
-	 * @see com.sun.syndication.fetcher.FetcherListener#fetcherEvent(com.sun.syndication.fetcher.FetcherEvent)
-	 */
-	public void fetcherEvent(FetcherEvent event) {
-		String eventType = event.getEventType();
-		if (FetcherEvent.EVENT_TYPE_FEED_POLLED.equals(eventType)) {
-			System.err.println("\tEVENT: Feed Polled. URL = "
-					+ event.getUrlString());
-		} else if (FetcherEvent.EVENT_TYPE_FEED_RETRIEVED.equals(eventType)) {
-			System.err.println("\tEVENT: Feed Retrieved. URL = "
-					+ event.getUrlString());
-			((RSSFeedClient) feedClient).setFeedModified(true);
-		} else if (FetcherEvent.EVENT_TYPE_FEED_UNCHANGED.equals(eventType)) {
-			System.err.println("\tEVENT: Feed Unchanged. URL = "
-					+ event.getUrlString());
-			((RSSFeedClient) feedClient).setFeedModified(true);
-		}
-	}
-}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java
index 1eb1079..6f993ae 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IManagedFeedAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -14,27 +14,30 @@
  */
 package edu.uci.ics.asterix.feed.managed.adapter;
 
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
+import java.util.Map;
 
-public interface IManagedFeedAdapter extends IDatasourceReadAdapter {
+/**
+ * Interface implemented by an adapter that can be controlled or managed by external
+ * commands (stop,alter)
+ */
+public interface IManagedFeedAdapter {
 
-	public enum OperationState {
-		SUSPENDED,
-		// INACTIVE state signifies that the feed dataset is not
-		// connected with the external world through the feed
-		// adapter.
-		ACTIVE,
-		// ACTIVE state signifies that the feed dataset is connected to the
-		// external world using an adapter that may put data into the dataset.
-		STOPPED, INACTIVE
-	}
-	
-	public void beforeSuspend() throws Exception;
+    /**
+     * Discontinue the ingestion of data and end the feed.
+     * 
+     * @throws Exception
+     */
+    public void stop();
 
-	public void beforeResume() throws Exception;
-
-	public void beforeStop() throws Exception;
-
-	public void stop() throws Exception;
+    /**
+     * Modify the adapter configuration parameters. This method is called
+     * when the configuration parameters need to be modified while the adapter
+     * is ingesting data in an active feed.
+     * 
+     * @param properties
+     *            A HashMap containing the set of configuration parameters
+     *            that need to be altered.
+     */
+    public void alter(Map<String, String> properties);
 
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IMutableFeedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IMutableFeedAdapter.java
deleted file mode 100644
index 290c7d6..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/managed/adapter/IMutableFeedAdapter.java
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.managed.adapter;
-
-import java.util.Map;
-
-public interface IMutableFeedAdapter extends IManagedFeedAdapter {
-
-    public void alter(Map<String,String> properties) throws Exception;
-    
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedId.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedId.java
deleted file mode 100644
index 19076c4..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedId.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
-*/
-package edu.uci.ics.asterix.feed.mgmt;
-
-import java.io.Serializable;
-
-public class FeedId implements Serializable {
-
-    private final String dataverse;
-    private final String dataset;
-
-    public FeedId(String dataverse, String dataset) {
-        this.dataset = dataset;
-        this.dataverse = dataverse;
-    }
-
-    public String getDataverse() {
-        return dataverse;
-    }
-
-    public String getDataset() {
-        return dataset;
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (o == null || !(o instanceof FeedId)) {
-            return false;
-        }
-        if (((FeedId) o).getDataset().equals(dataset) && ((FeedId) o).getDataverse().equals(dataverse)) {
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    public int hashCode() {
-        return dataverse.hashCode() + dataset.hashCode();
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedManager.java
deleted file mode 100644
index 39c0442..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedManager.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.mgmt;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-
-public class FeedManager implements IFeedManager {
-
-    private Map<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>> outGoingMsgQueueMap = new HashMap<FeedId, Set<LinkedBlockingQueue<IFeedMessage>>>();
-    private LinkedBlockingQueue<IFeedMessage> incomingMsgQueue = new LinkedBlockingQueue<IFeedMessage>();
-
-    
-    @Override
-    public boolean deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws Exception {
-        Set<LinkedBlockingQueue<IFeedMessage>> operatorQueues = outGoingMsgQueueMap.get(feedId);
-        if (operatorQueues == null) {
-            throw new IllegalArgumentException(" unknown feed id " + feedId.getDataverse() + ":" + feedId.getDataset());
-        }
-
-        for (LinkedBlockingQueue<IFeedMessage> queue : operatorQueues) {
-            queue.put(feedMessage);
-        }
-        return false;
-    }
-
-    @Override
-    public void registerFeedOperatorMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
-        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
-        if (feedQueues == null) {
-            feedQueues = new HashSet<LinkedBlockingQueue<IFeedMessage>>();
-        }
-        feedQueues.add(queue);
-        outGoingMsgQueueMap.put(feedId, feedQueues);
-        
-    }
-
-    @Override
-    public void unregisterFeedOperatorMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue) {
-        Set<LinkedBlockingQueue<IFeedMessage>> feedQueues = outGoingMsgQueueMap.get(feedId);
-        if (feedQueues == null || !feedQueues.contains(queue)) {
-            throw new IllegalArgumentException(" unable to de-register feed message queue");
-        }
-        feedQueues.remove(queue);
-    }
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedSystemProvider.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedSystemProvider.java
deleted file mode 100644
index 82fb67d..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/FeedSystemProvider.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.mgmt;
-
-
-/**
- * Provider for all the sub-systems (transaction/lock/log/recovery) managers.
- * Users of transaction sub-systems must obtain them from the provider.
- */
-public class FeedSystemProvider {
-    private static final IFeedManager feedManager = new FeedManager();
-    
-    public static IFeedManager getFeedManager()  {
-      return feedManager;
-    }
-}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/IFeedManager.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/IFeedManager.java
deleted file mode 100644
index a8c1303..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/mgmt/IFeedManager.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.mgmt;
-
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-
-public interface IFeedManager {
-
-    public void registerFeedOperatorMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
-
-    public void unregisterFeedOperatorMsgQueue(FeedId feedId, LinkedBlockingQueue<IFeedMessage> queue);
-
-    public boolean deliverMessage(FeedId feedId, IFeedMessage feedMessage) throws Exception;
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorDescriptor.java
deleted file mode 100644
index 93b8fc5..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorDescriptor.java
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.operator;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.feed.mgmt.FeedId;
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
-
-public class FeedIntakeOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
-    private static final long serialVersionUID = 1L;
-
-    private final String adapter;
-    private final Map<String, String> adapterConfiguration;
-    private final IAType atype;
-    private final FeedId feedId;
-
-    private transient IDatasourceReadAdapter datasourceReadAdapter;
-
-    public FeedIntakeOperatorDescriptor(JobSpecification spec, FeedId feedId, String adapter,
-            Map<String, String> arguments, ARecordType atype, RecordDescriptor rDesc) {
-        super(spec, 1, 1);
-        recordDescriptors[0] = rDesc;
-        this.adapter = adapter;
-        this.adapterConfiguration = arguments;
-        this.atype = atype;
-        this.feedId = feedId;
-    }
-
-    public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
-            IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions)
-            throws HyracksDataException {
-
-        try {
-            datasourceReadAdapter = (IDatasourceReadAdapter) Class.forName(adapter).newInstance();
-            datasourceReadAdapter.configure(adapterConfiguration, atype);
-            datasourceReadAdapter.initialize(ctx);
-
-        } catch (Exception e) {
-            throw new HyracksDataException("initialization of adapter failed", e);
-        }
-        return new FeedIntakeOperatorNodePushable(feedId, datasourceReadAdapter, partition);
-    }
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java
deleted file mode 100644
index 4603208..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package edu.uci.ics.asterix.feed.operator;
-
-import java.nio.ByteBuffer;
-import java.util.concurrent.LinkedBlockingQueue;
-
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
-import edu.uci.ics.asterix.external.data.parser.IManagedDataParser;
-import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
-import edu.uci.ics.asterix.feed.managed.adapter.IMutableFeedAdapter;
-import edu.uci.ics.asterix.feed.mgmt.FeedId;
-import edu.uci.ics.asterix.feed.mgmt.FeedSystemProvider;
-import edu.uci.ics.asterix.feed.mgmt.IFeedManager;
-import edu.uci.ics.asterix.feed.comm.AlterFeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
-
-public class FeedIntakeOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
-
-    private final IDatasourceReadAdapter adapter;
-    private final int partition;
-    private final IFeedManager feedManager;
-    private final FeedId feedId;
-    private final LinkedBlockingQueue<IFeedMessage> inbox;
-    private FeedInboxMonitor feedInboxMonitor;
-
-    public FeedIntakeOperatorNodePushable(FeedId feedId, IDatasourceReadAdapter adapter, int partition) {
-        this.adapter = adapter;
-        this.partition = partition;
-        this.feedManager = (IFeedManager) FeedSystemProvider.getFeedManager();
-        this.feedId = feedId;
-        inbox = new LinkedBlockingQueue<IFeedMessage>();
-    }
-
-    @Override
-    public void open() throws HyracksDataException {
-        feedInboxMonitor = new FeedInboxMonitor((IManagedFeedAdapter) adapter, inbox, partition);
-        feedInboxMonitor.start();
-        feedManager.registerFeedOperatorMsgQueue(feedId, inbox);
-        writer.open();
-        try {
-            adapter.getDataParser(partition).parse(writer);
-        } catch (Exception e) {
-            throw new HyracksDataException("exception during reading from external data source", e);
-        } finally {
-            writer.close();
-        }
-    }
-
-    @Override
-    public void fail() throws HyracksDataException {
-        writer.close();
-    }
-
-    @Override
-    public void close() throws HyracksDataException {
-        writer.close();
-    }
-
-    @Override
-    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
-        // TODO Auto-generated method stub
-
-    }
-}
-
-class FeedInboxMonitor extends Thread {
-
-    private LinkedBlockingQueue<IFeedMessage> inbox;
-    private final IManagedFeedAdapter adapter;
-    private final int partition;
-
-    public FeedInboxMonitor(IManagedFeedAdapter adapter, LinkedBlockingQueue<IFeedMessage> inbox, int partition) {
-        this.inbox = inbox;
-        this.adapter = adapter;
-        this.partition = partition;
-    }
-
-    @Override
-    public void run() {
-        while (true) {
-            try {
-                IFeedMessage feedMessage = inbox.take();
-                switch (feedMessage.getMessageType()) {
-                    case SUSPEND:
-                        ((IManagedDataParser) adapter.getDataParser(partition)).getManagedTupleParser().suspend();
-                        break;
-                    case RESUME:
-                        ((IManagedDataParser) adapter.getDataParser(partition)).getManagedTupleParser().resume();
-                        break;
-                    case STOP:
-                        ((IManagedDataParser) adapter.getDataParser(partition)).getManagedTupleParser().stop();
-                        break;
-                    case ALTER:
-                        ((IMutableFeedAdapter) adapter).alter(((AlterFeedMessage) feedMessage).getAlteredConfParams());
-                        break;
-                }
-            } catch (InterruptedException ie) {
-                break;
-            } catch (Exception e) {
-                throw new RuntimeException(e);
-            }
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorDescriptor.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorDescriptor.java
deleted file mode 100644
index c66c49e..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorDescriptor.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.operator;
-
-import java.util.List;
-
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.asterix.feed.mgmt.FeedId;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
-
-public class FeedMessageOperatorDescriptor extends
-		AbstractSingleActivityOperatorDescriptor {
-
-	private final FeedId feedId;
-	private final List<IFeedMessage> feedMessages;
-	private final boolean sendToAll = true;
-
-	public FeedMessageOperatorDescriptor(JobSpecification spec,
-			String dataverse, String dataset, List<IFeedMessage> feedMessages) {
-		super(spec, 0, 1);
-		this.feedId = new FeedId(dataverse, dataset);
-		this.feedMessages = feedMessages;
-	}
-
-	@Override
-	public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
-			IRecordDescriptorProvider recordDescProvider, int partition,
-			int nPartitions) throws HyracksDataException {
-		return new FeedMessageOperatorNodePushable(ctx, feedId, feedMessages,
-				sendToAll, partition, nPartitions);
-	}
-
-}
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorNodePushable.java
deleted file mode 100644
index 37e3ba3..0000000
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedMessageOperatorNodePushable.java
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.feed.operator;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.asterix.feed.mgmt.FeedId;
-import edu.uci.ics.asterix.feed.mgmt.FeedSystemProvider;
-import edu.uci.ics.asterix.feed.mgmt.IFeedManager;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
-
-public class FeedMessageOperatorNodePushable extends
-		AbstractUnaryOutputSourceOperatorNodePushable {
-
-	private final FeedId feedId;
-	private final List<IFeedMessage> feedMessages;
-	private IFeedManager feedManager;
-
-	public FeedMessageOperatorNodePushable(IHyracksTaskContext ctx,
-			FeedId feedId, List<IFeedMessage> feedMessages, boolean applyToAll,
-			int partition, int nPartitions) {
-		this.feedId = feedId;
-		if (applyToAll) {
-			this.feedMessages = feedMessages;
-		} else {
-			this.feedMessages = new ArrayList<IFeedMessage>();
-			feedMessages.add(feedMessages.get(partition));
-		}
-		feedManager = (IFeedManager) FeedSystemProvider.getFeedManager();
-	}
-
-	@Override
-	public void initialize() throws HyracksDataException {
-		try {
-			writer.open();
-			for (IFeedMessage feedMessage : feedMessages) {
-				feedManager.deliverMessage(feedId, feedMessage);
-			}
-		} catch (Exception e) {
-			throw new HyracksDataException(e);
-		} finally {
-			writer.close();
-		}
-	}
-
-}
diff --git a/asterix-hyracks-glue/pom.xml b/asterix-hyracks-glue/pom.xml
deleted file mode 100644
index eb5cb62..0000000
--- a/asterix-hyracks-glue/pom.xml
+++ /dev/null
@@ -1,74 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <artifactId>asterix</artifactId>
-    <groupId>edu.uci.ics.asterix</groupId>
-    <version>0.0.4-SNAPSHOT</version>
-  </parent>
-  <groupId>edu.uci.ics.asterix</groupId>
-  <artifactId>asterix-hyracks-glue</artifactId>
-  <version>0.0.4-SNAPSHOT</version>
-  <build>
-       <plugins>
-           <plugin>
-              <groupId>org.apache.maven.plugins</groupId>
-              <artifactId>maven-compiler-plugin</artifactId>
-              <version>2.0.2</version>
-              <configuration>
-                 <source>1.6</source>
-                 <target>1.6</target>
-              </configuration>
-           </plugin>
-       </plugins>
-  </build>     
-  <name>asterix-hyracks-glue</name>
-  <url>http://maven.apache.org</url>
-  <dependencies>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>3.8.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-       <groupId>edu.uci.ics.hyracks</groupId>
-       <artifactId>hyracks-storage-am-common</artifactId>
-       <version>0.2.0</version>
-       <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>edu.uci.ics.hyracks</groupId>
-      <artifactId>hyracks-storage-common</artifactId>
-      <version>0.2.0</version>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-       <groupId>edu.uci.ics.hyracks</groupId>
-       <artifactId>hyracks-api</artifactId>
-       <version>0.2.0</version>
-       <scope>compile</scope>
-    </dependency>
-       <dependency>
-       <groupId>edu.uci.ics.hyracks</groupId>
-       <artifactId>hyracks-dataflow-common</artifactId>
-       <version>0.2.0</version>
-       <scope>compile</scope>
-    </dependency>
-    <dependency>
-       <groupId>edu.uci.ics.asterix</groupId>
-       <artifactId>asterix-transactions</artifactId>
-       <version>0.0.4-SNAPSHOT</version>
-       <scope>compile</scope>
-    </dependency>
-    <dependency>
-       <groupId>edu.uci.ics.hyracks</groupId>
-       <artifactId>hyracks-storage-am-btree</artifactId>
-       <version>0.2.0</version>
-       <scope>compile</scope>
-    </dependency>
-  </dependencies>
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
-</project>
diff --git a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorDescriptor.java b/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorDescriptor.java
deleted file mode 100644
index e5a4a3c..0000000
--- a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorDescriptor.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.asterix.runtime.transaction;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOp;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public class TreeIndexInsertUpdateDeleteOperatorDescriptor extends
-		AbstractTreeIndexOperatorDescriptor {
-
-	private static final long serialVersionUID = 1L;
-
-	private final int[] fieldPermutation;
-
-	private final IndexOp op;
-
-	private final long transactionId;
-
-	public TreeIndexInsertUpdateDeleteOperatorDescriptor(JobSpecification spec,
-			RecordDescriptor recDesc, IStorageManagerInterface storageManager,
-			IIndexRegistryProvider<IIndex> treeIndexRegistryProvider,
-			IFileSplitProvider fileSplitProvider,
-			ITreeIndexFrameFactory interiorFrameFactory,
-			ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
-			IBinaryComparatorFactory[] comparatorFactories,
-			IIndexDataflowHelperFactory dataflowHelperFactory,
-			int[] fieldPermutation, IndexOp op, long transactionId) {
-		super(spec, 1, 1, recDesc, storageManager, treeIndexRegistryProvider,
-				fileSplitProvider, interiorFrameFactory, leafFrameFactory,
-				typeTraits, comparatorFactories, dataflowHelperFactory);
-
-		this.fieldPermutation = fieldPermutation;
-		this.op = op;
-		this.transactionId = transactionId; // would obtain it from query
-		// context
-	}
-
-	@Override
-	public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
-			IRecordDescriptorProvider recordDescProvider, int partition,
-			int nPartitions) {
-		TransactionContext txnContext;
-		try {
-			ITransactionManager transactionManager = ((TransactionProvider) (ctx
-					.getJobletContext().getApplicationContext()
-					.getApplicationObject())).getTransactionManager();
-			txnContext = transactionManager
-					.getTransactionContext(transactionId);
-		} catch (ACIDException ae) {
-			throw new RuntimeException(
-					" could not obtain context for invalid transaction id "
-							+ transactionId);
-		}
-		return new TreeIndexInsertUpdateDeleteOperatorNodePushable(txnContext,
-				this, ctx, partition, fieldPermutation, recordDescProvider, op);
-	}
-
-}
diff --git a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorNodePushable.java b/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorNodePushable.java
deleted file mode 100644
index 0a5a2ea..0000000
--- a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeIndexInsertUpdateDeleteOperatorNodePushable.java
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.runtime.transaction;
-
-import java.nio.ByteBuffer;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.PermutingFrameTupleReference;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOp;
-
-public class TreeIndexInsertUpdateDeleteOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
-    private FrameTupleAccessor accessor;
-    private TreeIndexDataflowHelper treeIndexHelper;
-    private final IRecordDescriptorProvider recordDescProvider;
-    private final IndexOp op;
-    private final PermutingFrameTupleReference tuple = new PermutingFrameTupleReference();
-    private ByteBuffer writeBuffer;
-    private ILockManager lockManager;
-    private final TransactionContext txnContext;
-    private TreeLogger bTreeLogger;
-    private final TransactionProvider transactionProvider;
-    private ITreeIndexAccessor treeIndexAccessor;
-
-    public TreeIndexInsertUpdateDeleteOperatorNodePushable(TransactionContext txnContext,
-            AbstractTreeIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition, int[] fieldPermutation,
-            IRecordDescriptorProvider recordDescProvider, IndexOp op) {
-        treeIndexHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
-                opDesc, ctx, partition, false);
-        this.recordDescProvider = recordDescProvider;
-        this.op = op;
-        tuple.setFieldPermutation(fieldPermutation);
-        this.txnContext = txnContext;
-        transactionProvider = (TransactionProvider) ctx.getJobletContext().getApplicationContext()
-                .getApplicationObject();
-    }
-
-    public void initializeTransactionSupport() {
-        TransactionalResourceRepository.registerTransactionalResourceManager(TreeResourceManager.ID,
-                TreeResourceManager.getInstance());
-        int fileId = treeIndexHelper.getIndexFileId();
-        byte[] resourceId = DataUtil.intToByteArray(fileId);
-        TransactionalResourceRepository.registerTransactionalResource(resourceId, treeIndexHelper.getIndex());
-        lockManager = transactionProvider.getLockManager();
-        bTreeLogger = TreeLoggerRepository.getTreeLogger(resourceId);
-    }
-
-    @Override
-    public void open() throws HyracksDataException {
-        AbstractTreeIndexOperatorDescriptor opDesc = (AbstractTreeIndexOperatorDescriptor) treeIndexHelper
-                .getOperatorDescriptor();
-        RecordDescriptor inputRecDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getOperatorId(), 0);
-        accessor = new FrameTupleAccessor(treeIndexHelper.getHyracksTaskContext().getFrameSize(), inputRecDesc);
-        writeBuffer = treeIndexHelper.getHyracksTaskContext().allocateFrame();
-        writer.open();
-        try {
-            treeIndexHelper.init();
-            treeIndexHelper.getIndex().open(treeIndexHelper.getIndexFileId());
-            treeIndexAccessor = ((ITreeIndex) treeIndexHelper.getIndex()).createAccessor();
-            initializeTransactionSupport();
-        } catch (Exception e) {
-            // cleanup in case of failure
-            treeIndexHelper.deinit();
-            throw new HyracksDataException(e);
-        }
-    }
-
-    @Override
-    public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
-        final IIndex treeIndex = treeIndexHelper.getIndex();
-        accessor.reset(buffer);
-        int fileId = treeIndexHelper.getIndexFileId();
-        byte[] resourceId = DataUtil.intToByteArray(fileId);
-        int tupleCount = accessor.getTupleCount();
-        try {
-            for (int i = 0; i < tupleCount; i++) {
-                tuple.reset(accessor, i);
-                switch (op) {
-                    case INSERT: {
-                        lockManager.lock(txnContext, resourceId,
-                                TransactionManagementConstants.LockManagerConstants.LockMode.EXCLUSIVE);
-                        treeIndexAccessor.insert(tuple);
-                        bTreeLogger.generateLogRecord(transactionProvider, txnContext, op, tuple);
-                    }
-                        break;
-
-                    case DELETE: {
-                        lockManager.lock(txnContext, resourceId,
-                                TransactionManagementConstants.LockManagerConstants.LockMode.EXCLUSIVE);
-                        treeIndexAccessor.delete(tuple);
-                        bTreeLogger.generateLogRecord(transactionProvider, txnContext, op, tuple);
-                    }
-                        break;
-
-                    default: {
-                        throw new HyracksDataException("Unsupported operation " + op
-                                + " in tree index InsertUpdateDelete operator");
-                    }
-                }
-            }
-        } catch (ACIDException ae) {
-            throw new HyracksDataException("exception in locking/logging during operation " + op + " on tree "
-                    + treeIndex, ae);
-        } catch (Exception e) {
-            e.printStackTrace();
-            throw new HyracksDataException(e);
-        }
-
-        // pass a copy of the frame to next op
-        System.arraycopy(buffer.array(), 0, writeBuffer.array(), 0, buffer.capacity());
-        FrameUtils.flushFrame(writeBuffer, writer);
-
-    }
-
-    @Override
-    public void close() throws HyracksDataException {
-        try {
-            writer.close();
-        } finally {
-            txnContext.addCloseableResource(new ICloseable() {
-                @Override
-                public void close(TransactionContext txnContext) throws ACIDException {
-                    try {
-                        treeIndexHelper.deinit();
-                    } catch (Exception e) {
-                        throw new ACIDException(txnContext, "could not de-initialize " + treeIndexHelper, e);
-                    }
-                }
-            });
-        }
-    }
-
-    @Override
-    public void fail() throws HyracksDataException {
-        writer.fail();
-    }
-
-}
diff --git a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLogger.java b/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLogger.java
deleted file mode 100644
index e2b6509..0000000
--- a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLogger.java
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.runtime.transaction;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexTupleWriter;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOp;
-
-/**
- * Represents a utility class for generating log records corresponding to
- * operations on a ITreeIndex implementation. A TreeLogger instance is thread
- * safe and can be shared across multiple threads that may belong to same or
- * different transactions.
- */
-class TransactionState {
-
-    private final Map<Long, TxnThreadState> transactionThreads = new HashMap<Long, TxnThreadState>();
-
-    public synchronized TxnThreadState getTransactionThreadState(long threadId) {
-        return transactionThreads.get(threadId);
-    }
-
-    public synchronized void putTransactionThreadState(long threadId, TxnThreadState txnThreadState) {
-        this.transactionThreads.put(threadId, txnThreadState);
-    }
-
-    public synchronized void remove(long threadId) {
-        transactionThreads.remove(threadId);
-    }
-}
-
-/**
- * Represents the state of a transaction thread. The state contains information
- * that includes the tuple being operated, the operation and the location of the
- * log record corresponding to the operation.
- */
-class TxnThreadState {
-
-    private ITupleReference tuple;
-    private IndexOp indexOperation;
-    private LogicalLogLocator logicalLogLocator;
-
-    public TxnThreadState(LogicalLogLocator logicalLogLocator, IndexOp indexOperation, ITupleReference tupleReference) {
-        this.tuple = tupleReference;
-        this.indexOperation = indexOperation;
-        this.logicalLogLocator = logicalLogLocator;
-    }
-
-    public synchronized ITupleReference getTuple() {
-        return tuple;
-    }
-
-    public synchronized void setTuple(ITupleReference tuple) {
-        this.tuple = tuple;
-    }
-
-    public synchronized IndexOp getIndexOperation() {
-        return indexOperation;
-    }
-
-    public synchronized void setIndexOperation(IndexOp indexOperation) {
-        this.indexOperation = indexOperation;
-    }
-
-    public synchronized LogicalLogLocator getLogicalLogLocator() {
-        return logicalLogLocator;
-    }
-
-    public synchronized void setLogicalLogLocator(LogicalLogLocator logicalLogLocator) {
-        this.logicalLogLocator = logicalLogLocator;
-    }
-
-}
-
-public class TreeLogger implements ILogger, ICloseable {
-
-    private static final byte resourceMgrId = TreeResourceManager.ID;
-    private final Map<Object, Object> arguments = new ConcurrentHashMap<Object, Object>();
-
-    public static final String TREE_INDEX = "TREE_INDEX";
-    public static final String TUPLE_REFERENCE = "TUPLE_REFERENCE";
-    public static final String TUPLE_WRITER = "TUPLE_WRITER";
-    public static final String INDEX_OPERATION = "INDEX_OPERATION";
-    public static final String RESOURCE_ID = "RESOURCE_ID";
-
-    private final ITreeIndex treeIndex;
-    private final ITreeIndexTupleWriter treeIndexTupleWriter;
-    private final byte[] resourceIdBytes;
-    private final byte[] resourceIdLengthBytes;
-
-    public class BTreeOperationCodes {
-        public static final byte INSERT = 0;
-        public static final byte DELETE = 1;
-    }
-
-    public TreeLogger(byte[] resourceIdBytes) {
-        this.resourceIdBytes = resourceIdBytes;
-        treeIndex = (ITreeIndex) TransactionalResourceRepository.getTransactionalResource(resourceIdBytes);
-        treeIndexTupleWriter = treeIndex.getLeafFrameFactory().getTupleWriterFactory().createTupleWriter();
-        this.resourceIdLengthBytes = DataUtil.intToByteArray(resourceIdBytes.length);
-    }
-
-    public synchronized void close(TransactionContext context) {
-        TransactionState txnState = (TransactionState) arguments.get(context.getTransactionID());
-        txnState.remove(Thread.currentThread().getId());
-        arguments.remove(context.getTransactionID());
-    }
-
-    public void generateLogRecord(TransactionProvider provider, TransactionContext context, IndexOp operation,
-            ITupleReference tuple) throws ACIDException {
-        context.addCloseableResource(this); // the close method would be called
-        // on this TreeLogger instance at
-        // the time of transaction
-        // commit/abort.
-        if (operation != IndexOp.INSERT && operation != IndexOp.DELETE) {
-            throw new ACIDException("Loging for Operation " + operation + " not supported");
-
-        }
-
-        TxnThreadState txnThreadState = null;
-        TransactionState txnState;
-        txnState = (TransactionState) arguments.get(context.getTransactionID());
-        if (txnState == null) {
-            synchronized (context) { // threads belonging to different
-                // transaction do not need to
-                // synchronize amongst them.
-                if (txnState == null) {
-                    txnState = new TransactionState();
-                    arguments.put(context.getTransactionID(), txnState);
-                }
-            }
-        }
-
-        txnThreadState = txnState.getTransactionThreadState(Thread.currentThread().getId());
-        if (txnThreadState == null) {
-            LogicalLogLocator logicalLogLocator = LogUtil.getDummyLogicalLogLocator(provider.getLogManager());
-            txnThreadState = new TxnThreadState(logicalLogLocator, operation, tuple);
-            txnState.putTransactionThreadState(Thread.currentThread().getId(), txnThreadState);
-        }
-        txnThreadState.setIndexOperation(operation);
-        txnThreadState.setTuple(tuple);
-        int tupleSize = treeIndexTupleWriter.bytesRequired(tuple);
-        // Below 4 is for the int representing the length of resource id and 1
-        // is for
-        // the byte representing the operation
-        int logContentLength = 4 + resourceIdBytes.length + 1 + tupleSize;
-        provider.getLogManager().log(txnThreadState.getLogicalLogLocator(), context, resourceMgrId, 0L, LogType.UPDATE,
-                LogActionType.REDO_UNDO, logContentLength, (ILogger) this, arguments);
-    }
-
-    @Override
-    public void log(TransactionContext context, LogicalLogLocator logicalLogLocator, int logRecordSize,
-            Map<Object, Object> loggerArguments) throws ACIDException {
-        TransactionState txnState = (TransactionState) loggerArguments.get(context.getTransactionID());
-        TxnThreadState state = (TxnThreadState) txnState.getTransactionThreadState(Thread.currentThread().getId());
-        int count = 0;
-        byte[] logBuffer = logicalLogLocator.getBuffer().getArray();
-        System.arraycopy(resourceIdLengthBytes, 0, logBuffer, logicalLogLocator.getMemoryOffset(), 4);
-        count += 4; // count is incremented by 4 because we wrote the length
-                    // that is an int and hence 4 bytes
-        System.arraycopy(resourceIdBytes, 0, logBuffer, logicalLogLocator.getMemoryOffset() + count,
-                resourceIdBytes.length);
-        count += resourceIdBytes.length;
-        logBuffer[logicalLogLocator.getMemoryOffset() + count] = (byte) state.getIndexOperation().ordinal();
-        count += 1; // count is incremented by 1 to account for the byte
-                    // written.
-        treeIndexTupleWriter.writeTuple(state.getTuple(), logicalLogLocator.getBuffer().getArray(),
-                logicalLogLocator.getMemoryOffset() + count);
-    }
-
-    @Override
-    public void postLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
-    }
-
-    @Override
-    public void preLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
-    }
-
-}
diff --git a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLoggerRepository.java b/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLoggerRepository.java
deleted file mode 100644
index fbd3cb1..0000000
--- a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeLoggerRepository.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.runtime.transaction;
-
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.Map;
-
-public class TreeLoggerRepository {
-
-    private static final Map<ByteBuffer, TreeLogger> loggers = new HashMap<ByteBuffer, TreeLogger>();
-
-    public static synchronized TreeLogger getTreeLogger(byte[] resourceIdBytes) {
-        ByteBuffer resourceId = ByteBuffer.wrap(resourceIdBytes);
-        TreeLogger logger = loggers.get(resourceId);
-        if (logger == null) {
-            logger = new TreeLogger(resourceIdBytes);
-            loggers.put(resourceId, logger);
-        }
-        return logger;
-    }
-}
\ No newline at end of file
diff --git a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeResourceManager.java b/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeResourceManager.java
deleted file mode 100644
index 5b812fc..0000000
--- a/asterix-hyracks-glue/src/main/java/edu/uci/ics/asterix/runtime/transaction/TreeResourceManager.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.runtime.transaction;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexTupleReference;
-
-public class TreeResourceManager implements IResourceManager {
-
-    public static final byte ID = (byte) 1;
-
-    private static final TreeResourceManager treeResourceMgr = new TreeResourceManager();
-
-    private TreeResourceManager() {
-    }
-
-    public static TreeResourceManager getInstance() {
-        return treeResourceMgr;
-    }
-
-    public byte getResourceManagerId() {
-        return ID;
-    }
-
-    public void undo(ILogRecordHelper logRecordHelper, LogicalLogLocator logLocator) throws ACIDException {
-
-        int logContentBeginPos = logRecordHelper.getLogContentBeginPos(logLocator);
-        byte[] logBufferContent = logLocator.getBuffer().getArray();
-        // read the length of resource id byte array
-        int resourceIdLength = DataUtil.byteArrayToInt(logBufferContent, logContentBeginPos);
-        byte[] resourceIdBytes = new byte[resourceIdLength];
-
-        // copy the resource if bytes
-        System.arraycopy(logBufferContent, logContentBeginPos + 4, resourceIdBytes, 0, resourceIdLength);
-
-        // look up the repository to obtain the resource object
-        ITreeIndex treeIndex = (ITreeIndex) TransactionalResourceRepository.getTransactionalResource(resourceIdBytes);
-        int operationOffset = logContentBeginPos + 4 + resourceIdLength;
-        int tupleBeginPos = operationOffset + 1;
-
-        ITreeIndexTupleReference tupleReference = treeIndex.getLeafFrameFactory().getTupleWriterFactory()
-                .createTupleWriter().createTupleReference();
-        // TODO: remove this call.
-        tupleReference.setFieldCount(tupleReference.getFieldCount());
-        tupleReference.resetByTupleOffset(logLocator.getBuffer().getByteBuffer(), tupleBeginPos);
-        byte operation = logBufferContent[operationOffset];
-        ITreeIndexAccessor treeIndexAccessor = treeIndex.createAccessor();
-        try {
-            switch (operation) {
-                case TreeLogger.BTreeOperationCodes.INSERT:
-                    treeIndexAccessor.delete(tupleReference);
-                    break;
-                case TreeLogger.BTreeOperationCodes.DELETE:
-                    treeIndexAccessor.insert(tupleReference);
-                    break;
-            }
-        } catch (Exception e) {
-            throw new ACIDException(" could not rollback ", e);
-        }
-    }
-
-    public void redo(ILogRecordHelper logRecordHelper, LogicalLogLocator logicalLogLocator) throws ACIDException {
-        throw new UnsupportedOperationException(" Redo logic will be implemented as part of crash recovery feature");
-    }
-
-}
diff --git a/asterix-installer/pom.xml b/asterix-installer/pom.xml
new file mode 100644
index 0000000..fa5666a
--- /dev/null
+++ b/asterix-installer/pom.xml
@@ -0,0 +1,152 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+          <artifactId>asterix</artifactId>
+          <groupId>edu.uci.ics.asterix</groupId>
+          <version>0.0.4-SNAPSHOT</version>
+  </parent>
+  <artifactId>asterix-installer</artifactId>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <build>
+    <plugins>
+       <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>2.0.2</version>
+          <configuration>
+             <source>1.6</source>
+             <target>1.6</target>
+          </configuration>
+       </plugin>
+
+       <plugin>
+          <groupId>org.jvnet.jaxb2.maven2</groupId>
+          <artifactId>maven-jaxb2-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>configuration</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+                  <include>installer-conf.xsd</include>
+                </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.installer.schema.conf</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/configuration</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>cluster</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+                  <include>cluster.xsd</include>
+                </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.installer.schema.cluster</generatePackage>
+                <bindingDirectory>src/main/resources/schema</bindingDirectory>
+                <bindingIncludes>
+                  <bindingInclude>jaxb-bindings.xjb</bindingInclude>
+                </bindingIncludes>
+                <generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
+              </configuration>
+            </execution>
+          </executions>
+       </plugin>
+       <plugin>
+         <artifactId>maven-assembly-plugin</artifactId>
+         <version>2.2-beta-2</version>
+         <executions>
+           <execution>
+             <configuration>
+               <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+             </configuration>
+             <phase>package</phase>
+             <goals>
+               <goal>attached</goal>
+             </goals>
+           </execution>
+         </executions>
+       </plugin>
+    </plugins> 
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>args4j</groupId>
+      <artifactId>args4j</artifactId>
+      <version>2.0.12</version>
+      <type>jar</type>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.zookeeper</groupId>
+      <artifactId>zookeeper</artifactId>
+      <version>3.4.5</version>
+      <exclusions>
+            <exclusion>
+                <groupId>com.sun.jmx</groupId>
+                <artifactId>jmxri</artifactId>
+            </exclusion>
+            <exclusion>
+                <groupId>com.sun.jdmk</groupId>
+                <artifactId>jmxtools</artifactId>
+            </exclusion>
+            <exclusion>
+                <groupId>javax.jms</groupId>
+                <artifactId>jms</artifactId>
+            </exclusion>
+        </exclusions>
+    </dependency>
+    <dependency>
+        <groupId>commons-io</groupId>
+        <artifactId>commons-io</artifactId>
+        <version>1.4</version>
+    </dependency>
+    <dependency>
+        <groupId>edu.uci.ics.asterix</groupId>
+        <artifactId>asterix-events</artifactId>
+        <version>0.0.4-SNAPSHOT</version>
+        <type>jar</type>
+        <scope>compile</scope>
+    </dependency>
+    <dependency>
+        <groupId>edu.uci.ics.asterix</groupId>
+        <artifactId>asterix-server</artifactId>
+        <version>0.0.4-SNAPSHOT</version>
+        <type>zip</type>
+        <classifier>binary-assembly</classifier>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/asterix-installer/src/main/assembly/binary-assembly.xml b/asterix-installer/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..6a0c130
--- /dev/null
+++ b/asterix-installer/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,108 @@
+<assembly>
+  <id>binary-assembly</id>
+  <formats>
+    <format>zip</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <fileSets>
+    <fileSet>
+      <directory>src/main/resources/conf</directory>
+      <outputDirectory>conf</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/clusters</directory>
+      <outputDirectory>clusters</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/zookeeper</directory>
+      <fileMode>0755</fileMode>
+      <outputDirectory>.installer/zookeeper/bin</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <fileMode>0755</fileMode>
+      <includes>
+        <include>managix</include>
+      </includes>
+      <outputDirectory>bin</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <fileMode>0755</fileMode>
+      <excludes>
+        <exclude>managix</exclude>
+      </excludes>
+      <outputDirectory>.installer/scripts</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/hadoop-0.20.2</directory>
+      <outputDirectory>.installer/hadoop-0.20.2</outputDirectory>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>target</directory>
+      <outputDirectory>lib</outputDirectory>
+      <includes>
+        <include>*.jar</include>
+      </includes>
+    </fileSet>
+    <fileSet>
+      <directory>../asterix-events/src/main/resources/events</directory>
+      <outputDirectory>.installer/eventrix/events</outputDirectory>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>../asterix-events/src/main/resources/scripts</directory>
+      <outputDirectory>.installer/eventrix/scripts</outputDirectory>
+    </fileSet>
+  </fileSets>
+  <dependencySets>
+    <dependencySet>
+      <includes>
+         <include>log4j:log4j</include>
+         <include>edu.uci.ics.asterix:asterix-events</include>
+         <include>org.apache.zookeeper:zookeeper</include>
+         <include>args4j:args4j</include>
+         <include>log4j:log4j</include>
+         <include>commons-io:commons-io</include>
+         <include>org.slf4j:slf4j-api</include>
+         <include>org.slf4j:slf4j-log4j12</include>
+       </includes>
+       <unpack>false</unpack>
+       <outputDirectory>lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <includes>
+        <include>org.apache.hadoop:hadoop-core</include>
+        <include>commons-cli:commons-cli</include>
+        <include>commons-logging:commons-logging</include>
+      </includes>
+      <unpack>false</unpack>
+      <outputDirectory>.installer/hadoop-0.20.2/lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <includes>
+        <include>org.apache.zookeeper:zookeeper</include>
+        <include>log4j:log4j</include>
+        <include>org.slf4j:slf4j-api</include>
+      </includes>
+      <unpack>false</unpack>
+      <outputDirectory>.installer/zookeeper/lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <outputDirectory>asterix</outputDirectory>
+      <includes>
+        <include>asterix-server*</include>
+      </includes>
+      <useTransitiveDependencies>false</useTransitiveDependencies>
+    </dependencySet>
+    <dependencySet>
+      <outputDirectory>.installer/eventrix</outputDirectory>
+      <includes>
+        <include>asterix-events*</include>
+      </includes>
+      <unpack>false</unpack>
+      <useTransitiveDependencies>false</useTransitiveDependencies>
+    </dependencySet>
+  </dependencySets>
+</assembly>
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java
new file mode 100644
index 0000000..66a0697
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import org.apache.log4j.Logger;
+import org.kohsuke.args4j.CmdLineParser;
+
+public abstract class AbstractCommand implements ICommand {
+
+    protected static final Logger LOGGER = Logger.getLogger(AbstractCommand.class.getName());
+
+    protected CommandConfig config;
+
+    protected String usageDescription;
+
+    public void execute(String[] args) throws Exception {
+        String[] cmdArgs = new String[args.length - 1];
+        System.arraycopy(args, 1, cmdArgs, 0, cmdArgs.length);
+        config = getCommandConfig();
+        CmdLineParser parser = new CmdLineParser(config);
+        parser.parseArgument(cmdArgs);
+        execCommand();
+    }
+
+    abstract protected void execCommand() throws Exception;
+
+    abstract protected String getUsageDescription();
+
+    abstract protected CommandConfig getCommandConfig();
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
new file mode 100644
index 0000000..5ef7449
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.Date;
+import java.util.Properties;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class AlterCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String instanceName = ((AlterConfig) config).name;
+        InstallerUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        AsterixInstance instance = lookupService.getAsterixInstance(instanceName);
+
+        Properties asterixConfProp = InstallerUtil.getAsterixConfiguration(((AlterConfig) config).confPath);
+        instance.setConfiguration(asterixConfProp);
+        instance.setModifiedTimestamp(new Date());
+        lookupService.updateAsterixInstance(instance);
+        LOGGER.info("Configuration for Asterix instance: " + instanceName + " has been altered");
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new AlterConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nAlter the instance's configuration settings."
+                + "\nPrior to running this command, the instance is required to be INACTIVE state."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance"
+                + "\n-conf path to the ASTERIX configuration file.";
+    }
+
+}
+
+class AlterConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-conf", required = true, usage = "Path to instance configuration")
+    public String confPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
new file mode 100644
index 0000000..297a168
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.Date;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.BackupInfo;
+import edu.uci.ics.asterix.installer.schema.conf.Backup;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class BackupCommand extends AbstractCommand {
+
+    public static final String ASTERIX_ROOT_METADATA_DIR = "asterix_root_metadata";
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((BackupConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        List<BackupInfo> backupInfo = instance.getBackupInfo();
+        PatternCreator pc = new PatternCreator();
+        Backup backupConf = InstallerDriver.getConfiguration().getBackup();
+        Patterns patterns = pc.getBackUpAsterixPattern(instance, backupConf);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        int backupId = backupInfo.size();
+        BackupInfo binfo = new BackupInfo(backupId, new Date(), backupConf);
+        backupInfo.add(binfo);
+        LOGGER.info(asterixInstanceName + " backed up " + binfo);
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new BackupConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nIn an undesirable event of data loss either due to a disk/system"
+                + "\nfailure or accidental execution of a DDL statement (drop dataverse/dataset),"
+                + "\nyou may need to recover the lost data. The backup command allows you to take a"
+                + "\nbackup of the data stored with an ASTERIX instance. "
+                + "\nThe backed up snapshot is stored in HDFS." + "\n\nAvailable arguments/options:"
+                + "\n-n name of the Asterix instance";
+
+    }
+
+}
+
+class BackupConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of the Asterix instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java
new file mode 100644
index 0000000..55b0c3b
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java
@@ -0,0 +1,5 @@
+package edu.uci.ics.asterix.installer.command;
+
+public abstract class CommandConfig {
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
new file mode 100644
index 0000000..7fc3884
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import edu.uci.ics.asterix.installer.command.ICommand.CommandType;
+
+public class CommandHandler {
+
+    public void processCommand(String args[]) throws Exception {
+        CommandType cmdType = CommandType.valueOf(args[0].toUpperCase());
+        ICommand cmd = null;
+        switch (cmdType) {
+            case CREATE:
+                cmd = new CreateCommand();
+                break;
+            case ALTER:
+                cmd = new AlterCommand();
+                break;
+            case DELETE:
+                cmd = new DeleteCommand();
+                break;
+            case DESCRIBE:
+                cmd = new DescribeCommand();
+                break;
+            case BACKUP:
+                cmd = new BackupCommand();
+                break;
+            case RESTORE:
+                cmd = new RestoreCommand();
+                break;
+            case START:
+                cmd = new StartCommand();
+                break;
+            case STOP:
+                cmd = new StopCommand();
+                break;
+            case VALIDATE:
+                cmd = new ValidateCommand();
+                break;
+            case CONFIGURE:
+                cmd = new ConfigureCommand();
+                break;
+            case SHUTDOWN:
+                cmd = new ShutdownCommand();
+                break;
+            case HELP:
+                cmd = new HelpCommand();
+                break;
+        }
+        cmd.execute(args);
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ConfigureCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ConfigureCommand.java
new file mode 100644
index 0000000..d22e6ce
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ConfigureCommand.java
@@ -0,0 +1,71 @@
+package edu.uci.ics.asterix.installer.command;
+
+import java.io.File;
+import java.io.FileOutputStream;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.WorkingDir;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public class ConfigureCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String localClusterPath = InstallerDriver.getManagixHome() + File.separator + "clusters" + File.separator
+                + "local" + File.separator + "local.xml";
+
+        JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        Cluster cluster = (Cluster) unmarshaller.unmarshal(new File(localClusterPath));
+
+        String workingDir = InstallerDriver.getManagixHome() + File.separator + "clusters" + File.separator + "local"
+                + File.separator + "working_dir";
+        cluster.setWorkingDir(new WorkingDir(workingDir, true));
+        cluster.setIodevices(workingDir);
+        cluster.setStore("storage");
+        cluster.setLogdir(workingDir + File.separator + "logs");
+        cluster.setJavaHome(System.getenv("JAVA_HOME"));
+        cluster.setJavaOpts("-Xmx1024m");
+
+        Marshaller marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        marshaller.marshal(cluster, new FileOutputStream(localClusterPath));
+
+        String installerConfPath = InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_CONF_XML;
+        ctx = JAXBContext.newInstance(Configuration.class);
+        unmarshaller = ctx.createUnmarshaller();
+        Configuration configuration = (Configuration) unmarshaller.unmarshal(new File(installerConfPath));
+
+        configuration.getBackup().setBackupDir(workingDir + File.separator + "backup");
+        configuration.getZookeeper().setHomeDir(
+                InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_INTERNAL_DIR
+                        + File.separator + "zookeeper_home");
+        configuration.getZookeeper().getServers().setJavaHome(System.getenv("JAVA_HOME"));
+
+        marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        marshaller.marshal(configuration, new FileOutputStream(installerConfPath));
+
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nAuto-generates the ASTERIX installer configruation settings and ASTERIX cluster "
+                + "\nconfiguration settings for a single node setup.";
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new ConfigureConfig();
+    }
+
+}
+
+class ConfigureConfig extends CommandConfig {
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
new file mode 100644
index 0000000..fd0af04
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Env;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.cluster.WorkingDir;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class CreateCommand extends AbstractCommand {
+
+	private String asterixInstanceName;
+	private Cluster cluster;
+
+	@Override
+	protected void execCommand() throws Exception {
+		InstallerDriver.initConfig();
+		ValidateCommand validateCommand = new ValidateCommand();
+		boolean valid = validateCommand
+				.validateCluster(((CreateConfig) config).clusterPath);
+		if (!valid) {
+			throw new Exception("Cannot create an Asterix instance.");
+		}
+		asterixInstanceName = ((CreateConfig) config).name;
+		InstallerUtil.validateAsterixInstanceNotExists(asterixInstanceName);
+		CreateConfig createConfig = (CreateConfig) config;
+		JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+		Unmarshaller unmarshaller = ctx.createUnmarshaller();
+		cluster = (Cluster) unmarshaller.unmarshal(new File(
+				createConfig.clusterPath));
+		AsterixInstance asterixInstance = InstallerUtil.createAsterixInstance(
+				asterixInstanceName, cluster);
+		InstallerUtil.evaluateConflictWithOtherInstances(asterixInstance);
+		InstallerUtil.createAsterixZip(asterixInstance, true);
+		List<Property> clusterProperties = new ArrayList<Property>();
+		clusterProperties.add(new Property("ASTERIX_HOME", cluster
+				.getWorkingDir().getDir() + File.separator + "asterix"));
+		StringBuilder javaOpts = new StringBuilder();
+		if (cluster.getJavaOpts() != null) {
+			javaOpts.append(cluster.getJavaOpts());
+		}
+		clusterProperties.add(new Property("JAVA_OPTS", javaOpts.toString()));
+		clusterProperties.add(new Property("CLUSTER_NET_IP", cluster
+				.getMasterNode().getClusterIp()));
+		clusterProperties.add(new Property("CLIENT_NET_IP", cluster
+				.getMasterNode().getClientIp()));
+		clusterProperties.add(new Property("LOG_DIR", cluster.getLogdir()));
+		clusterProperties.add(new Property("JAVA_HOME", cluster.getJavaHome()));
+		clusterProperties.add(new Property("WORKING_DIR", cluster
+				.getWorkingDir().getDir()));
+		cluster.setEnv(new Env(clusterProperties));
+
+		PatternCreator pc = new PatternCreator();
+		Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName,
+				cluster);
+		InstallerUtil.getEventrixClient(cluster).submit(patterns);
+
+		AsterixRuntimeState runtimeState = VerificationUtil
+				.getAsterixRuntimeState(asterixInstance);
+		VerificationUtil.updateInstanceWithRuntimeDescription(asterixInstance,
+				runtimeState, true);
+		ServiceProvider.INSTANCE.getLookupService().writeAsterixInstance(
+				asterixInstance);
+		InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome()
+				+ File.separator + InstallerDriver.ASTERIX_DIR + File.separator
+				+ asterixInstanceName);
+		LOGGER.info(asterixInstance.getDescription(false));
+	}
+
+	@Override
+	protected CommandConfig getCommandConfig() {
+		return new CreateConfig();
+	}
+
+	public Cluster getCluster() {
+		return cluster;
+	}
+
+	public String getAsterixInstanceName() {
+		return asterixInstanceName;
+	}
+
+	@Override
+	protected String getUsageDescription() {
+		return "\nCreates an ASTERIX instance with a specified name."
+				+ "\n\nPost creation, the instance is in ACTIVE state, indicating its "
+				+ "\navailability for executing statements/queries."
+				+ "\n\nUsage arguments/options:"
+				+ "\n-n Name of the ASTERIX instance."
+				+ "\n-c Path to the cluster configuration file";
+	}
+
+}
+
+class CreateConfig extends CommandConfig {
+
+	@Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+	public String name;
+
+	@Option(name = "-c", required = true, usage = "Path to cluster configuration")
+	public String clusterPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
new file mode 100644
index 0000000..2279d8f
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class DeleteCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((DeleteConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.createDeleteInstancePattern(instance);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+
+        patterns = pc.createRemoveAsterixWorkingDirPattern(instance);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        ServiceProvider.INSTANCE.getLookupService().removeAsterixInstance(asterixInstanceName);
+        LOGGER.info("Deleted Asterix instance: " + asterixInstanceName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new DeleteConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nPermanently deletes an ASTERIX instance." + "\n" + "The instance must be in the INACTIVE state."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance.";
+    }
+
+}
+
+class DeleteConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
new file mode 100644
index 0000000..9306a56
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class DescribeCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((DescribeConfig) config).name;
+        boolean adminView = ((DescribeConfig) config).admin;
+        if (asterixInstanceName != null) {
+            InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE, State.ACTIVE,
+                    State.UNUSABLE);
+            AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(
+                    asterixInstanceName);
+            if (instance != null) {
+                AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
+                boolean expectedRunning = instance.getState().equals(State.UNUSABLE) ? instance.getPreviousState()
+                        .equals(State.ACTIVE) : !instance.getState().equals(State.INACTIVE);
+                VerificationUtil.updateInstanceWithRuntimeDescription(instance, state, expectedRunning);
+                ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+                LOGGER.info(instance.getDescription(adminView));
+            } else {
+                throw new InstallerException("Asterix instance by the name " + asterixInstanceName + " does not exist.");
+            }
+        } else {
+            List<AsterixInstance> asterixInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
+            if (asterixInstances.size() > 0) {
+                for (AsterixInstance instance : asterixInstances) {
+                    AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
+                    boolean expectedRunning = instance.getState().equals(State.UNUSABLE) ? instance.getPreviousState()
+                            .equals(State.ACTIVE) : !instance.getState().equals(State.INACTIVE);
+                    VerificationUtil.updateInstanceWithRuntimeDescription(instance, state, expectedRunning);
+                    ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+                    LOGGER.info(instance.getDescription(adminView));
+                }
+            } else {
+                LOGGER.info("No Asterix instances found!");
+            }
+
+        }
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new DescribeConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nProvides information about an ASTERIX instance." + "\n\nUsage arguments/options:-"
+                + "\n[-n]       Name of the ASTERIX instance." + "\n[-admin]   Provides a detailed description";
+    }
+
+}
+
+class DescribeConfig extends CommandConfig {
+
+    @Option(name = "-n", required = false, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-admin", required = false, usage = "Detailed description")
+    public boolean admin;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java
new file mode 100644
index 0000000..a9864a3
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/HelpCommand.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+public class HelpCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        HelpConfig helpConfig = (HelpConfig) config;
+        String command = helpConfig.command;
+        CommandType cmdType = CommandType.valueOf(command.toUpperCase());
+        String helpMessage = null;
+        switch (cmdType) {
+            case CREATE:
+                helpMessage = new CreateCommand().getUsageDescription();
+                break;
+            case CONFIGURE:
+                helpMessage = new ConfigureCommand().getUsageDescription();
+                break;
+            case DELETE:
+                helpMessage = new DeleteCommand().getUsageDescription();
+                break;
+            case DESCRIBE:
+                helpMessage = new DescribeCommand().getUsageDescription();
+                break;
+            case RESTORE:
+                helpMessage = new RestoreCommand().getUsageDescription();
+                break;
+            case START:
+                helpMessage = new StartCommand().getUsageDescription();
+                break;
+            case SHUTDOWN:
+                helpMessage = new ShutdownCommand().getUsageDescription();
+                break;
+            case BACKUP:
+                helpMessage = new BackupCommand().getUsageDescription();
+                break;
+            case STOP:
+                helpMessage = new StopCommand().getUsageDescription();
+                break;
+            case VALIDATE:
+                helpMessage = new ValidateCommand().getUsageDescription();
+                break;
+            default:
+                helpMessage = "Unknown command " + command;
+        }
+
+        System.out.println(helpMessage);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new HelpConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nAlter the instance's configuration settings."
+                + "\nPrior to running this command, the instance is required to be INACTIVE state."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance"
+                + "\n-conf path to the ASTERIX configuration file.";
+    }
+
+}
+
+class HelpConfig extends CommandConfig {
+
+    @Option(name = "-cmd", required = true, usage = "Name of Asterix Instance")
+    public String command;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
new file mode 100644
index 0000000..979c414
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+public interface ICommand {
+
+    public enum CommandType {
+        CREATE,
+        DELETE,
+        START,
+        STOP,
+        BACKUP,
+        RESTORE,
+        DESCRIBE,
+        ALTER,
+        VALIDATE,
+        CONFIGURE,
+        SHUTDOWN,
+        HELP
+    }
+
+    public void execute(String args[]) throws Exception;
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
new file mode 100644
index 0000000..9ef925a
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.BackupInfo;
+
+public class RestoreCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((RestoreConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        int backupId = ((RestoreConfig) config).backupId;
+        List<BackupInfo> backupInfoList = instance.getBackupInfo();
+        if (backupInfoList.size() <= backupId || backupId < 0) {
+            throw new IllegalStateException("Invalid backup id");
+        }
+
+        BackupInfo backupInfo = backupInfoList.get(backupId);
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getRestoreAsterixPattern(instance, backupInfo);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        LOGGER.info("Asterix instance: " + asterixInstanceName + " has been restored from backup");
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new RestoreConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nRestores an ASTERIX instance's data from a previously taken backup snapshot."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance"
+                + "\n-b id of the backup snapshot ";
+    }
+
+}
+
+class RestoreConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of the Asterix instance")
+    public String name;
+
+    @Option(name = "-b", required = true, usage = "Id corresponding to the backed up version")
+    public int backupId;
+
+}
\ No newline at end of file
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java
new file mode 100644
index 0000000..b9dd23d
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ShutdownCommand.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class ShutdownCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        lookupService.stopService(InstallerDriver.getConfiguration());
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new ShutdownConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nShuts down the installer's backgrouund processes";
+    }
+
+}
+
+class ShutdownConfig extends CommandConfig {
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
new file mode 100644
index 0000000..38bcf33
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.io.File;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class StartCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((StartConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        InstallerUtil.createAsterixZip(instance, false);
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName, instance.getCluster());
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator + InstallerDriver.ASTERIX_DIR
+                + File.separator + asterixInstanceName);
+        AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(instance);
+        VerificationUtil.updateInstanceWithRuntimeDescription(instance, runtimeState, true);
+        LOGGER.info(instance.getDescription(false));
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StartConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nStarts an ASTERIX instance that is in INACTIVE state."
+                + "\nAfter executing the start command, the ASTERIX instance transits to the ACTIVE state,"
+                + "\nindicating that it is now available for executing statements/queries."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance. ";
+    }
+}
+
+class StartConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
new file mode 100644
index 0000000..dfd8c5e
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class StopCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig();
+        String asterixInstanceName = ((StopConfig) config).name;
+        AsterixInstance asterixInstance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.ACTIVE, State.UNUSABLE);
+        PatternCreator pc = new PatternCreator();
+        EventrixClient client = InstallerUtil.getEventrixClient(asterixInstance.getCluster());
+
+        List<Pattern> ncKillPatterns = new ArrayList<Pattern>();
+        for (Node node : asterixInstance.getCluster().getNode()) {
+            ncKillPatterns.add(pc.createNCStopPattern(node.getId(), asterixInstanceName + "_" + node.getId()));
+        }
+
+        List<Pattern> ccKillPatterns = new ArrayList<Pattern>();
+        ccKillPatterns.add(pc.createCCStopPattern(asterixInstance.getCluster().getMasterNode().getId()));
+
+        try {
+            client.submit(new Patterns(ncKillPatterns));
+            client.submit(new Patterns(ccKillPatterns));
+        } catch (Exception e) {
+            // processes are already dead
+            LOGGER.debug("Attempt to kill non-existing processess");
+        }
+
+        asterixInstance.setState(State.INACTIVE);
+        asterixInstance.setStateChangeTimestamp(new Date());
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(asterixInstance);
+        LOGGER.info("Stopped Asterix instance: " + asterixInstanceName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StopConfig();
+    }
+
+    public String getAsterixInstanceName() {
+        return ((StopConfig) config).name;
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return "\nShuts an ASTERIX instance that is in ACTIVE/UNUSABLE state."
+                + "\nAfter executing the stop command, the ASTERIX instance transits"
+                + "\nto the INACTIVE state, indicating that it is no longer available"
+                + "\nfor executing statements/queries." + "\n\nAvailable arguments/options"
+                + "\n-n name of the ASTERIX instance.";
+
+    }
+
+}
+
+class StopConfig extends CommandConfig {
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java
new file mode 100644
index 0000000..3d292a9
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ValidateCommand.java
@@ -0,0 +1,267 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.command;
+
+import java.io.File;
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.MasterNode;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+import edu.uci.ics.asterix.installer.schema.conf.Zookeeper;
+
+public class ValidateCommand extends AbstractCommand {
+
+	private static final String OK = " [" + "OK" + "]";
+	private static final String ERROR = " [" + "ERROR" + "]";
+	private static final String WARNING = " [" + "WARNING" + "]";
+
+	@Override
+	protected void execCommand() throws Exception {
+		ValidateConfig vConfig = (ValidateConfig) config;
+		logValidationResult("Environment", validateEnvironment());
+		if (((ValidateConfig) config).cluster != null) {
+			logValidationResult("Cluster configuration",
+					validateCluster(vConfig.cluster));
+		} else {
+			logValidationResult("Installer Configuration",
+					validateConfiguration());
+		}
+	}
+
+	private void logValidationResult(String prefix, boolean isValid) {
+		if (!isValid) {
+			LOGGER.fatal(prefix + ERROR);
+		} else {
+			LOGGER.info(prefix + OK);
+		}
+	}
+
+	@Override
+	protected CommandConfig getCommandConfig() {
+		return new ValidateConfig();
+	}
+
+	@Override
+	protected String getUsageDescription() {
+		return "\nValidate the installer's configuration or a cluster configuration"
+				+ "\nUsage"
+				+ "\nFor validating the installer configuration"
+				+ "\nuse managix validate"
+				+ "\n\nFor validating a cluster configuration"
+				+ "\nuse managix validate -c <path to the cluster configuration file>";
+	}
+
+	public boolean validateEnvironment() throws Exception {
+		boolean valid = true;
+		String managixHome = System.getenv(InstallerDriver.ENV_MANAGIX_HOME);
+		if (managixHome == null) {
+			valid = false;
+			LOGGER.fatal(InstallerDriver.ENV_MANAGIX_HOME + " not set " + ERROR);
+		} else {
+			File home = new File(managixHome);
+			if (!home.exists()) {
+				valid = false;
+				LOGGER.fatal(InstallerDriver.ENV_MANAGIX_HOME + ": "
+						+ home.getAbsolutePath() + " does not exist!" + ERROR);
+			}
+		}
+		return valid;
+
+	}
+
+	public boolean validateCluster(String clusterPath) throws Exception {
+		boolean valid = true;
+		Cluster cluster = null;
+		File f = new File(clusterPath);
+		if (!f.exists() || !f.isFile()) {
+			LOGGER.error(" Invalid path " + f.getAbsolutePath() + ERROR);
+			valid = false;
+		} else {
+			JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+			Unmarshaller unmarshaller = ctx.createUnmarshaller();
+			cluster = (Cluster) unmarshaller.unmarshal(new File(clusterPath));
+			validateClusterProperties(cluster);
+
+			Set<String> servers = new HashSet<String>();
+			Set<String> serverIds = new HashSet<String>();
+			servers.add(cluster.getMasterNode().getClusterIp());
+			serverIds.add(cluster.getMasterNode().getId());
+
+			MasterNode masterNode = cluster.getMasterNode();
+			Node master = new Node(masterNode.getId(),
+					masterNode.getClusterIp(), masterNode.getJavaOpts(),
+					masterNode.getJavaHome(), masterNode.getLogdir(), null,
+					null, null);
+
+			valid = valid & validateNodeConfiguration(master, cluster);
+
+			for (Node node : cluster.getNode()) {
+				servers.add(node.getClusterIp());
+				if (serverIds.contains(node.getId())) {
+					valid = false;
+					LOGGER.error("Duplicate node id :" + node.getId() + ERROR);
+				} else {
+					valid = valid & validateNodeConfiguration(node, cluster);
+				}
+			}
+		}
+
+		return valid;
+	}
+
+	private void validateClusterProperties(Cluster cluster) {
+		List<String> tempDirs = new ArrayList<String>();
+		if (cluster.getLogdir() != null
+				&& checkTemporaryPath(cluster.getLogdir())) {
+			tempDirs.add("Log directory: " + cluster.getLogdir());
+		}
+		if (cluster.getIodevices() != null
+				&& checkTemporaryPath(cluster.getIodevices())) {
+			tempDirs.add("IO Device: " + cluster.getIodevices());
+		}
+
+		if (tempDirs.size() > 0) {
+			StringBuffer msg = new StringBuffer();
+			msg.append("The following paths are subject to be cleaned up by OS");
+			for (String tempDir : tempDirs) {
+				msg.append("\n" + tempDir + WARNING);
+			}
+			LOGGER.warn(msg);
+		}
+
+	}
+
+	private boolean validateNodeConfiguration(Node node, Cluster cluster) {
+		boolean valid = true;
+		valid = checkNodeReachability(node.getClusterIp());
+		if (node.getJavaHome() == null || node.getJavaHome().length() == 0) {
+			if (cluster.getJavaHome() == null
+					|| cluster.getJavaHome().length() == 0) {
+				valid = false;
+				LOGGER.fatal("java_home not defined at cluster/node level for node: "
+						+ node.getId() + ERROR);
+			}
+		}
+
+		if (node.getLogdir() == null || node.getLogdir().length() == 0) {
+			if (cluster.getLogdir() == null
+					|| cluster.getLogdir().length() == 0) {
+				valid = false;
+				LOGGER.fatal("log_dir not defined at cluster/node level for node: "
+						+ node.getId() + ERROR);
+			}
+		}
+
+		if (node.getStore() == null || node.getStore().length() == 0) {
+			if (!cluster.getMasterNode().getId().equals(node.getId())
+					&& (cluster.getStore() == null || cluster.getStore()
+							.length() == 0)) {
+				valid = false;
+				LOGGER.fatal("store not defined at cluster/node level for node: "
+						+ node.getId() + ERROR);
+			}
+		}
+
+		if (node.getIodevices() == null || node.getIodevices().length() == 0) {
+			if (!cluster.getMasterNode().getId().equals(node.getId())
+					&& (cluster.getIodevices() == null || cluster
+							.getIodevices().length() == 0)) {
+				valid = false;
+				LOGGER.fatal("iodevice(s) not defined at cluster/node level for node: "
+						+ node.getId() + ERROR);
+			}
+		}
+
+		return valid;
+	}
+
+	private boolean checkTemporaryPath(String logdir) {
+		return logdir.startsWith("/tmp/");
+
+	}
+
+	public boolean validateConfiguration() throws Exception {
+		String managixHome = System.getenv(InstallerDriver.ENV_MANAGIX_HOME);
+		File configFile = new File(managixHome + File.separator
+				+ InstallerDriver.MANAGIX_CONF_XML);
+		JAXBContext configCtx = JAXBContext.newInstance(Configuration.class);
+		Unmarshaller unmarshaller = configCtx.createUnmarshaller();
+		Configuration conf = (Configuration) unmarshaller.unmarshal(configFile);
+		return validateZookeeperConfiguration(conf);
+	}
+
+	private boolean validateZookeeperConfiguration(Configuration conf)
+			throws Exception {
+		boolean valid = true;
+		Zookeeper zk = conf.getZookeeper();
+
+		if (zk.getHomeDir() == null || zk.getHomeDir().length() == 0) {
+			valid = false;
+			LOGGER.fatal("Zookeeper home dir not configured" + ERROR);
+		} else if (checkTemporaryPath(zk.getHomeDir())) {
+			LOGGER.warn("Zookeeper home dir is subject to be cleaned up by OS"
+					+ WARNING);
+		}
+
+		if (zk.getServers().getServer().isEmpty()) {
+			valid = false;
+			LOGGER.fatal("Zookeeper servers not configured" + ERROR);
+		}
+
+		boolean validEnsemble = true;
+		for (String server : zk.getServers().getServer()) {
+			validEnsemble = validEnsemble && checkNodeReachability(server);
+		}
+
+		return valid;
+	}
+
+	private boolean checkNodeReachability(String server) {
+		boolean reachable = true;
+		try {
+			InetAddress address = InetAddress.getByName(server);
+			if (!address.isReachable(1000)) {
+				LOGGER.fatal("\n" + "Server: " + server + " unreachable"
+						+ ERROR);
+				reachable = false;
+			}
+		} catch (Exception e) {
+			reachable = false;
+			LOGGER.fatal("\n" + "Server: " + server + " Invalid address"
+					+ ERROR);
+		}
+		return reachable;
+	}
+
+}
+
+class ValidateConfig extends CommandConfig {
+
+	@Option(name = "-c", required = false, usage = "Path to the cluster configuration xml")
+	public String cluster;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
new file mode 100644
index 0000000..8083427
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.driver;
+
+import java.io.File;
+import java.io.FileFilter;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+
+import edu.uci.ics.asterix.installer.command.CommandHandler;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class InstallerDriver {
+
+	public static final String MANAGIX_INTERNAL_DIR = ".installer";
+	public static final String MANAGIX_EVENT_DIR = MANAGIX_INTERNAL_DIR
+			+ File.separator + "eventrix";
+	public static final String MANAGIX_EVENT_SCRIPTS_DIR = MANAGIX_INTERNAL_DIR
+			+ File.separator + "eventrix" + File.separator + "scripts";
+	public static final String ASTERIX_DIR = "asterix";
+	public static final String EVENTS_DIR = "events";
+
+	private static final Logger LOGGER = Logger.getLogger(InstallerDriver.class
+			.getName());
+	public static final String ENV_MANAGIX_HOME = "MANAGIX_HOME";
+	public static final String MANAGIX_CONF_XML = "conf" + File.separator
+			+ "managix-conf.xml";
+
+	private static Configuration conf;
+	private static String managixHome;
+	private static String asterixZip;
+
+	public static String getAsterixZip() {
+		return asterixZip;
+	}
+
+	public static Configuration getConfiguration() {
+		return conf;
+	}
+
+	public static void initConfig() throws Exception {
+		File configFile = new File(managixHome + File.separator
+				+ MANAGIX_CONF_XML);
+		JAXBContext configCtx = JAXBContext.newInstance(Configuration.class);
+		Unmarshaller unmarshaller = configCtx.createUnmarshaller();
+		conf = (Configuration) unmarshaller.unmarshal(configFile);
+		asterixZip = initBinary("asterix-server");
+
+		ILookupService lookupService = ServiceProvider.INSTANCE
+				.getLookupService();
+		if (!lookupService.isRunning(conf)) {
+			lookupService.startService(conf);
+		}
+	}
+
+	private static String initBinary(final String fileNamePattern) {
+		String asterixDir = InstallerDriver.getAsterixDir();
+		File file = new File(asterixDir);
+		File[] zipFiles = file.listFiles(new FileFilter() {
+			public boolean accept(File arg0) {
+				return arg0.getAbsolutePath().contains(fileNamePattern)
+						&& arg0.isFile();
+			}
+		});
+		if (zipFiles.length == 0) {
+			String msg = " Binary not found at " + asterixDir;
+			LOGGER.log(Level.FATAL, msg);
+			throw new IllegalStateException(msg);
+		}
+		if (zipFiles.length > 1) {
+			String msg = " Multiple binaries found at " + asterixDir;
+			LOGGER.log(Level.FATAL, msg);
+			throw new IllegalStateException(msg);
+		}
+
+		return zipFiles[0].getAbsolutePath();
+	}
+
+	public static String getManagixHome() {
+		return managixHome;
+	}
+
+	public static String getAsterixDir() {
+		return managixHome + File.separator + ASTERIX_DIR;
+	}
+
+	public static void main(String args[]) {
+		try {
+			if (args.length != 0) {
+				managixHome = System.getenv(ENV_MANAGIX_HOME);
+				CommandHandler cmdHandler = new CommandHandler();
+				cmdHandler.processCommand(args);
+			} else {
+				printUsage();
+			}
+		} catch (IllegalArgumentException iae) {
+			LOGGER.error("Unknown command");
+			printUsage();
+		} catch (Exception e) {
+			LOGGER.error(e.getMessage());
+			if (e.getMessage() == null || e.getMessage().length() == 0) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	private static void printUsage() {
+		StringBuffer buffer = new StringBuffer("managix <command> <options>"
+				+ "\n");
+		buffer.append("Commands" + "\n");
+		buffer.append("create   " + ":" + " Creates a new asterix instance"
+				+ "\n");
+		buffer.append("delete   " + ":" + " Deletes an asterix instance" + "\n");
+		buffer.append("start    " + ":" + " Starts an  asterix instance" + "\n");
+		buffer.append("stop     " + ":"
+				+ " Stops an asterix instance that is in ACTIVE state" + "\n");
+		buffer.append("backup   " + ":"
+				+ " Creates a back up for an existing asterix instance" + "\n");
+		buffer.append("restore  " + ":" + " Restores an asterix instance"
+				+ "\n");
+		buffer.append("describe " + ":"
+				+ " Describes an existing asterix instance" + "\n");
+		buffer.append("validate " + ":"
+				+ " Validates the installer/cluster configuration" + "\n");
+		buffer.append("configure"
+				+ ":"
+				+ " Auto-generate configuration for local psedu-distributed Asterix instance"
+				+ "\n");
+		buffer.append("shutdown " + ":" + " Shutdown the installer service"
+				+ "\n");
+		buffer.append("validate " + ":"
+				+ " Validates the installer/cluster configuration" + "\n");
+		buffer.append("configure"
+				+ ":"
+				+ " Auto-generate configuration for local psedu-distributed Asterix instance"
+				+ "\n");
+		buffer.append("shutdown " + ":" + " Shutdown the installer service"
+				+ "\n");
+		buffer.append("help     " + ":"
+				+ " Provides usage description of a command" + "\n");
+
+		LOGGER.info(buffer.toString());
+	}
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
new file mode 100644
index 0000000..e2be142
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
@@ -0,0 +1,420 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.driver;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Random;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import org.apache.commons.io.IOUtils;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.error.OutputHandler;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class InstallerUtil {
+
+    public static final String TXN_LOG_DIR = "txnLogs";
+    public static final String TXN_LOG_DIR_KEY_SUFFIX = "txnLogDir";
+
+    public static AsterixInstance createAsterixInstance(String asterixInstanceName, Cluster cluster)
+            throws FileNotFoundException, IOException {
+        Properties asterixConfProp = new Properties();
+        asterixConfProp.put("output_dir", cluster.getWorkingDir().getDir() + File.separator + "asterix_output");
+        Node metadataNode = getMetadataNode(cluster);
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String asterixVersion = asterixZipName.substring("asterix-server-".length(),
+                asterixZipName.indexOf("-binary-assembly"));
+        AsterixInstance instance = new AsterixInstance(asterixInstanceName, cluster, asterixConfProp,
+                metadataNode.getId(), asterixVersion);
+        return instance;
+    }
+
+    public static void createAsterixZip(AsterixInstance asterixInstance, boolean newDeployment) throws IOException,
+            InterruptedException {
+
+        String modifiedZipPath = injectAsterixPropertyFile(InstallerDriver.getAsterixZip(), asterixInstance,
+                newDeployment);
+        injectAsterixLogPropertyFile(modifiedZipPath, asterixInstance);
+    }
+
+    private static String injectAsterixPropertyFile(String origZipFile, AsterixInstance asterixInstance,
+            boolean newDeployment) throws IOException {
+        writeAsterixConfigurationFile(asterixInstance, newDeployment);
+        String asterixInstanceDir = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(origZipFile, asterixInstanceDir);
+        File sourceJar = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        String asterixPropertyFile = "test.properties";
+        File replacementFile = new File(asterixInstanceDir + File.separator + "test.properties");
+        replaceInJar(sourceJar, asterixPropertyFile, replacementFile);
+        new File(asterixInstanceDir + File.separator + "test.properties").delete();
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+        return asterixInstanceDir + File.separator + asterixZipName;
+    }
+
+    private static String injectAsterixLogPropertyFile(String origZipFile, AsterixInstance asterixInstance)
+            throws IOException {
+        String asterixInstanceDir = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(origZipFile, asterixInstanceDir);
+        File sourceJar1 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        String txnLogPropertyFile = "log.properties";
+        Properties txnLogProperties = new Properties();
+        URLClassLoader urlClassLoader = new URLClassLoader(new URL[] { sourceJar1.toURI().toURL() });
+        InputStream in = urlClassLoader.getResourceAsStream(txnLogPropertyFile);
+        if (in != null) {
+            txnLogProperties.load(in);
+        }
+
+        writeAsterixLogConfigurationFile(asterixInstance.getName(), asterixInstance.getCluster(), txnLogProperties);
+
+        File sourceJar2 = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        File replacementFile = new File(asterixInstanceDir + File.separator + "log.properties");
+        replaceInJar(sourceJar2, txnLogPropertyFile, replacementFile);
+
+        new File(asterixInstanceDir + File.separator + "log.properties").delete();
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+        return asterixInstanceDir + File.separator + asterixZipName;
+    }
+
+    public static void addLibraryToAsterixZip(AsterixInstance asterixInstance, String dataverseName,
+            String libraryName, String libraryPath) throws IOException {
+        File instanceDir = new File(InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName());
+        if (!instanceDir.exists()) {
+            instanceDir.mkdirs();
+        }
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+
+        String sourceZip = instanceDir.getAbsolutePath() + File.separator + asterixZipName;
+        unzip(sourceZip, instanceDir.getAbsolutePath());
+        File libraryPathInZip = new File(instanceDir.getAbsolutePath() + File.separator + "external" + File.separator
+                + "library" + dataverseName + File.separator + "to-add" + File.separator + libraryName);
+        libraryPathInZip.mkdirs();
+        Runtime.getRuntime().exec("cp" + " " + libraryPath + " " + libraryPathInZip.getAbsolutePath());
+        Runtime.getRuntime().exec("rm " + sourceZip);
+        String destZip = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName() + File.separator
+                + asterixZipName;
+        zipDir(instanceDir, new File(destZip));
+        Runtime.getRuntime().exec("mv" + " " + destZip + " " + sourceZip);
+    }
+
+    private static Node getMetadataNode(Cluster cluster) {
+        Random random = new Random();
+        int nNodes = cluster.getNode().size();
+        return cluster.getNode().get(random.nextInt(nNodes));
+    }
+
+    public static String getNodeDirectories(String asterixInstanceName, Node node, Cluster cluster) {
+        String storeDataSubDir = asterixInstanceName + File.separator + "data" + File.separator;
+        String[] storeDirs = null;
+        StringBuffer nodeDataStore = new StringBuffer();
+        String storeDirValue = node.getStore();
+        if (storeDirValue == null) {
+            storeDirValue = cluster.getStore();
+            if (storeDirValue == null) {
+                throw new IllegalStateException(" Store not defined for node " + node.getId());
+            }
+            storeDataSubDir = node.getId() + File.separator + storeDataSubDir;
+        }
+
+        storeDirs = storeDirValue.split(",");
+        for (String ns : storeDirs) {
+            nodeDataStore.append(ns + File.separator + storeDataSubDir.trim());
+            nodeDataStore.append(",");
+        }
+        nodeDataStore.deleteCharAt(nodeDataStore.length() - 1);
+        return nodeDataStore.toString();
+    }
+
+    private static void writeAsterixConfigurationFile(AsterixInstance asterixInstance, boolean newData)
+            throws IOException {
+        String asterixInstanceName = asterixInstance.getName();
+        Cluster cluster = asterixInstance.getCluster();
+        String metadataNodeId = asterixInstance.getMetadataNodeId();
+
+        StringBuffer conf = new StringBuffer();
+        conf.append("MetadataNode=" + asterixInstanceName + "_" + metadataNodeId + "\n");
+        conf.append("NewUniverse=" + newData + "\n");
+
+        String storeDir = null;
+        for (Node node : cluster.getNode()) {
+            storeDir = node.getStore() == null ? cluster.getStore() : node.getStore();
+            conf.append(asterixInstanceName + "_" + node.getId() + ".stores" + "=" + storeDir + "\n");
+        }
+
+        Properties asterixConfProp = asterixInstance.getConfiguration();
+        String outputDir = asterixConfProp.getProperty("output_dir");
+        conf.append("OutputDir=" + outputDir);
+
+        File asterixConfDir = new File(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName);
+        asterixConfDir.mkdirs();
+        dumpToFile(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName + File.separator
+                + "test.properties", conf.toString());
+    }
+
+    private static void writeAsterixLogConfigurationFile(String asterixInstanceName, Cluster cluster,
+            Properties logProperties) throws IOException {
+        StringBuffer conf = new StringBuffer();
+        for (Map.Entry<Object, Object> p : logProperties.entrySet()) {
+            conf.append(p.getKey() + "=" + p.getValue() + "\n");
+        }
+
+        for (Node node : cluster.getNode()) {
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            String txnLogDir = iodevices.split(",")[0].trim() + File.separator + InstallerUtil.TXN_LOG_DIR;
+            conf.append(asterixInstanceName + "_" + node.getId() + "." + TXN_LOG_DIR_KEY_SUFFIX + "=" + txnLogDir
+                    + "\n");
+        }
+        dumpToFile(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName + File.separator
+                + "log.properties", conf.toString());
+
+    }
+
+    public static Properties getAsterixConfiguration(String asterixConf) throws FileNotFoundException, IOException {
+        Properties prop = new Properties();
+        prop.load(new FileInputStream(asterixConf));
+        return prop;
+    }
+
+    public static void unzip(String sourceFile, String destDir) throws IOException {
+        BufferedOutputStream dest = null;
+        FileInputStream fis = new FileInputStream(sourceFile);
+        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
+        ZipEntry entry = null;
+
+        int BUFFER_SIZE = 4096;
+        while ((entry = zis.getNextEntry()) != null) {
+            String dst = destDir + File.separator + entry.getName();
+            if (entry.isDirectory()) {
+                createDir(destDir, entry);
+                continue;
+            }
+            int count;
+            byte data[] = new byte[BUFFER_SIZE];
+
+            // write the file to the disk
+            FileOutputStream fos = new FileOutputStream(dst);
+            dest = new BufferedOutputStream(fos, BUFFER_SIZE);
+            while ((count = zis.read(data, 0, BUFFER_SIZE)) != -1) {
+                dest.write(data, 0, count);
+            }
+            // close the output streams
+            dest.flush();
+            dest.close();
+        }
+
+        zis.close();
+    }
+
+    public static void zipDir(File sourceDir, File destFile) throws IOException {
+        FileOutputStream fos = new FileOutputStream(destFile);
+        ZipOutputStream zos = new ZipOutputStream(fos);
+        zipDir(sourceDir, destFile, zos);
+        zos.close();
+    }
+
+    private static void zipDir(File sourceDir, final File destFile, ZipOutputStream zos) throws IOException {
+        File[] dirList = sourceDir.listFiles(new FileFilter() {
+            public boolean accept(File f) {
+                return !f.getName().endsWith(destFile.getName());
+            }
+        });
+        for (int i = 0; i < dirList.length; i++) {
+            File f = dirList[i];
+            if (f.isDirectory()) {
+                zipDir(f, destFile, zos);
+            } else {
+                int bytesIn = 0;
+                byte[] readBuffer = new byte[2156];
+                FileInputStream fis = new FileInputStream(f);
+                ZipEntry entry = new ZipEntry(sourceDir.getName() + File.separator + f.getName());
+                zos.putNextEntry(entry);
+                while ((bytesIn = fis.read(readBuffer)) != -1) {
+                    zos.write(readBuffer, 0, bytesIn);
+                }
+                fis.close();
+            }
+        }
+    }
+
+    private static void replaceInJar(File sourceJar, String origFile, File replacementFile) throws IOException {
+        File destJar = new File(sourceJar.getAbsolutePath() + ".modified");
+        InputStream jarIs = null;
+        FileInputStream fis = new FileInputStream(replacementFile);
+        JarFile sourceJarFile = new JarFile(sourceJar);
+        Enumeration<JarEntry> entries = sourceJarFile.entries();
+        JarOutputStream jos = new JarOutputStream(new FileOutputStream(destJar));
+        byte[] buffer = new byte[2048];
+        int read;
+        while (entries.hasMoreElements()) {
+            JarEntry entry = (JarEntry) entries.nextElement();
+            String name = entry.getName();
+            if (name.equals(origFile)) {
+                continue;
+            }
+            jarIs = sourceJarFile.getInputStream(entry);
+            jos.putNextEntry(entry);
+            while ((read = jarIs.read(buffer)) != -1) {
+                jos.write(buffer, 0, read);
+            }
+        }
+        JarEntry entry = new JarEntry(origFile);
+        jos.putNextEntry(entry);
+        while ((read = fis.read(buffer)) != -1) {
+            jos.write(buffer, 0, read);
+        }
+        fis.close();
+        jos.close();
+        jarIs.close();
+        sourceJar.delete();
+        destJar.renameTo(sourceJar);
+        sourceJar.setExecutable(true);
+    }
+
+    public static void dumpToFile(String dest, String content) throws IOException {
+        FileWriter writer = new FileWriter(dest);
+        writer.write(content);
+        writer.close();
+    }
+
+    private static void createDir(String destDirectory, ZipEntry entry) {
+        String name = entry.getName();
+        int index = name.lastIndexOf(File.separator);
+        String dirSequence = name.substring(0, index);
+        File newDirs = new File(destDirectory + File.separator + dirSequence);
+        newDirs.mkdirs();
+    }
+
+    public static AsterixInstance validateAsterixInstanceExists(String name, State... permissibleStates)
+            throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance == null) {
+            throw new InstallerException("Asterix instance by name " + name + " does not exist.");
+        }
+        boolean valid = false;
+        for (State state : permissibleStates) {
+            if (state.equals(instance.getState())) {
+                valid = true;
+                break;
+            }
+        }
+        if (!valid) {
+            throw new InstallerException("Asterix instance by the name " + name + " is in " + instance.getState()
+                    + " state ");
+        }
+        return instance;
+    }
+
+    public static void validateAsterixInstanceNotExists(String name) throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance != null) {
+            throw new InstallerException("Asterix instance by name " + name + " already exists.");
+        }
+    }
+
+    public static void evaluateConflictWithOtherInstances(AsterixInstance instance) throws Exception {
+        List<AsterixInstance> existingInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
+        List<String> usedIps = new ArrayList<String>();
+        String masterIp = instance.getCluster().getMasterNode().getClusterIp();
+        for (Node node : instance.getCluster().getNode()) {
+            usedIps.add(node.getClusterIp());
+        }
+        usedIps.add(instance.getCluster().getMasterNode().getClusterIp());
+        boolean conflictFound = false;
+        AsterixInstance conflictingInstance = null;
+        for (AsterixInstance existing : existingInstances) {
+            conflictFound = existing.getCluster().getMasterNode().getClusterIp().equals(masterIp);
+            if (conflictFound) {
+                conflictingInstance = existing;
+                break;
+            }
+            for (Node n : existing.getCluster().getNode()) {
+                if (usedIps.contains(n.getClusterIp())) {
+                    conflictFound = true;
+                    conflictingInstance = existing;
+                    break;
+                }
+            }
+        }
+        if (conflictFound) {
+            throw new Exception("Cluster definition conflicts with an existing instance of Asterix: "
+                    + conflictingInstance.getName());
+        }
+    }
+
+    public static void deleteDirectory(String path) throws IOException {
+        Runtime.getRuntime().exec("rm -rf " + path);
+    }
+
+    public static String executeLocalScript(String path, List<String> args) throws Exception {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(path);
+        if (args != null) {
+            pargs.addAll(args);
+        }
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().putAll(EventDriver.getEnvironment());
+        pb.environment().put("IP_LOCATION", EventDriver.CLIENT_NODE.getClusterIp());
+        Process p = pb.start();
+        BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
+        StringWriter writer = new StringWriter();
+        IOUtils.copy(bis, writer, "UTF-8");
+        return writer.toString();
+    }
+
+    public static EventrixClient getEventrixClient(Cluster cluster) throws Exception {
+        return new EventrixClient(
+                InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_EVENT_DIR, cluster, false,
+                OutputHandler.INSTANCE);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java
new file mode 100644
index 0000000..89dedb6
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.error;
+
+public class InstallerException extends Exception {
+
+    private static final long serialVersionUID = 1L;
+
+    public InstallerException(String message) {
+        super(message);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
new file mode 100644
index 0000000..4699402
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.error;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+import edu.uci.ics.asterix.event.management.IOutputHandler;
+import edu.uci.ics.asterix.event.management.OutputAnalysis;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.installer.model.EventList.EventType;
+
+public class OutputHandler implements IOutputHandler {
+
+    public static IOutputHandler INSTANCE = new OutputHandler();
+
+    private OutputHandler() {
+
+    }
+
+    public OutputAnalysis reportEventOutput(Event event, String output) {
+
+        EventType eventType = EventType.valueOf(event.getType().toUpperCase());
+        boolean ignore = true;
+        String trimmedOutput = output.trim();
+        StringBuffer errorMessage = new StringBuffer();
+        switch (eventType) {
+            case FILE_TRANSFER:
+                if (trimmedOutput.length() > 0) {
+                    if (output.contains("Permission denied") || output.contains("cannot find or open")) {
+                        ignore = false;
+                        break;
+                    }
+                }
+                break;
+
+            case BACKUP:
+            case RESTORE:
+                if (trimmedOutput.length() > 0) {
+                    if (trimmedOutput.contains("AccessControlException")) {
+                        errorMessage.append("Insufficient permissions on back up directory");
+                        ignore = false;
+                    }
+                    if (output.contains("does not exist") || output.contains("File exist")
+                            || (output.contains("No such file or directory"))) {
+                        ignore = true;
+                    } else {
+                        ignore = false;
+                    }
+                }
+                break;
+
+            case NODE_INFO:
+                Properties p = new Properties();
+                try {
+                    p.load(new ByteArrayInputStream(trimmedOutput.getBytes()));
+                } catch (IOException e) {
+                }
+                String javaVersion = (String) p.get("java_version");
+                if (p.get("java_version") == null) {
+                    errorMessage.append("Java not installed on " + event.getNodeid().getValue().getAbsvalue());
+                    ignore = false;
+                } else if (!javaVersion.contains("1.7")) {
+                    errorMessage.append("Asterix requires Java 1.7.x. Incompatible version found on  "
+                            + event.getNodeid().getValue().getAbsvalue() + "\n");
+                    ignore = false;
+                }
+                break;
+        }
+        if (ignore) {
+            return new OutputAnalysis(true, null);
+        } else {
+            return new OutputAnalysis(false, errorMessage.toString());
+        }
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
new file mode 100644
index 0000000..9cb1b96e
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.error;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.model.ProcessInfo;
+
+public class VerificationUtil {
+
+	private static final String VERIFY_SCRIPT_PATH = InstallerDriver
+			.getManagixHome()
+			+ File.separator
+			+ InstallerDriver.MANAGIX_INTERNAL_DIR
+			+ File.separator
+			+ "scripts"
+			+ File.separator + "verify.sh";
+
+	public static AsterixRuntimeState getAsterixRuntimeState(
+			AsterixInstance instance) throws Exception {
+
+		Cluster cluster = instance.getCluster();
+		List<String> args = new ArrayList<String>();
+		args.add(instance.getName());
+		args.add(instance.getCluster().getMasterNode().getClusterIp());
+		for (Node node : cluster.getNode()) {
+			args.add(node.getClusterIp());
+			args.add(instance.getName() + "_" + node.getId());
+		}
+		Thread.sleep(2000);
+		String output = InstallerUtil.executeLocalScript(VERIFY_SCRIPT_PATH,
+				args);
+		boolean ccRunning = true;
+		List<String> failedNCs = new ArrayList<String>();
+		String[] infoFields;
+		ProcessInfo pInfo;
+		List<ProcessInfo> processes = new ArrayList<ProcessInfo>();
+
+		for (String line : output.split("\n")) {
+			String nodeid = null;
+			infoFields = line.split(":");
+			try {
+				int pid = Integer.parseInt(infoFields[3]);
+				if (infoFields[0].equals("NC")) {
+					nodeid = infoFields[2].split("_")[1];
+				} else {
+					nodeid = instance.getCluster().getMasterNode().getId();
+				}
+				pInfo = new ProcessInfo(infoFields[0], infoFields[1], nodeid,
+						pid);
+				processes.add(pInfo);
+			} catch (Exception e) {
+				if (infoFields[0].equalsIgnoreCase("CC")) {
+					ccRunning = false;
+				} else {
+					failedNCs.add(infoFields[1]);
+				}
+			}
+		}
+		return new AsterixRuntimeState(processes, failedNCs, ccRunning);
+	}
+
+	public static void updateInstanceWithRuntimeDescription(
+			AsterixInstance instance, AsterixRuntimeState state,
+			boolean expectedRunning) {
+		StringBuffer summary = new StringBuffer();
+		if (expectedRunning) {
+			if (!state.isCcRunning()) {
+				summary.append("Cluster Controller not running at "
+						+ instance.getCluster().getMasterNode().getId() + "\n");
+				instance.setState(State.UNUSABLE);
+			}
+			if (state.getFailedNCs() != null && !state.getFailedNCs().isEmpty()) {
+				summary.append("Node Controller not running at the following nodes"
+						+ "\n");
+				for (String failedNC : state.getFailedNCs()) {
+					summary.append(failedNC + "\n");
+				}
+				instance.setState(State.UNUSABLE);
+			}
+			if (!(instance.getState().equals(State.UNUSABLE))) {
+				instance.setState(State.ACTIVE);
+			}
+		} else {
+			if (state.getProcesses() != null && state.getProcesses().size() > 0) {
+				summary.append("Following process still running " + "\n");
+				for (ProcessInfo pInfo : state.getProcesses()) {
+					summary.append(pInfo + "\n");
+				}
+				instance.setState(State.UNUSABLE);
+			} else {
+				instance.setState(State.INACTIVE);
+			}
+		}
+		state.setSummary(summary.toString());
+		instance.setAsterixRuntimeStates(state);
+	}
+
+	public static void verifyBackupRestoreConfiguration(String hdfsUrl,
+			String hadoopVersion, String hdfsBackupDir) throws Exception {
+		StringBuffer errorCheck = new StringBuffer();
+		if (hdfsUrl == null || hdfsUrl.length() == 0) {
+			errorCheck.append("\n HDFS Url not configured");
+		}
+		if (hadoopVersion == null || hadoopVersion.length() == 0) {
+			errorCheck.append("\n HDFS version not configured");
+		}
+		if (hdfsBackupDir == null || hdfsBackupDir.length() == 0) {
+			errorCheck.append("\n HDFS backup directory not configured");
+		}
+		if (errorCheck.length() > 0) {
+			throw new Exception("Incomplete hdfs configuration in "
+					+ InstallerDriver.getManagixHome() + File.separator
+					+ InstallerDriver.MANAGIX_CONF_XML + errorCheck);
+		}
+	}
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
new file mode 100644
index 0000000..f6aeafe
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
@@ -0,0 +1,454 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.events;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Delay;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Nodeid;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+import edu.uci.ics.asterix.installer.command.BackupCommand;
+import edu.uci.ics.asterix.installer.command.StopCommand;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.BackupInfo;
+import edu.uci.ics.asterix.installer.model.BackupInfo.BackupType;
+import edu.uci.ics.asterix.installer.schema.conf.Backup;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class PatternCreator {
+
+    private ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+
+    private void addInitialDelay(Pattern p, int delay, String unit) {
+        Delay d = new Delay(new Value(null, "" + delay), unit);
+        p.setDelay(d);
+    }
+
+    public Patterns getStartAsterixPattern(String asterixInstanceName, Cluster cluster) throws Exception {
+        String ccLocationId = cluster.getMasterNode().getId();
+        String ccLocationIp = cluster.getMasterNode().getClusterIp();
+
+        String destDir = cluster.getWorkingDir().getDir() + File.separator + "asterix";
+        List<Pattern> ps = new ArrayList<Pattern>();
+
+        Pattern copyHyracks = createCopyHyracksPattern(asterixInstanceName, cluster, ccLocationIp, destDir);
+        ps.add(copyHyracks);
+
+        Pattern createCC = createCCStartPattern(ccLocationId);
+        addInitialDelay(createCC, 3, "sec");
+        ps.add(createCC);
+
+        boolean copyHyracksToNC = !cluster.getWorkingDir().isNFS();
+        for (Node node : cluster.getNode()) {
+            if (copyHyracksToNC) {
+                Pattern copyHyracksForNC = createCopyHyracksPattern(asterixInstanceName, cluster, node.getClusterIp(),
+                        destDir);
+                ps.add(copyHyracksForNC);
+            }
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            Pattern createNC = createNCStartPattern(cluster.getMasterNode().getClusterIp(), node.getId(),
+                    asterixInstanceName + "_" + node.getId(), iodevices);
+            addInitialDelay(createNC, 5, "sec");
+            ps.add(createNC);
+        }
+
+        Patterns patterns = new Patterns(ps);
+        patterns.getPattern().addAll(createHadoopLibraryTransferPattern(cluster).getPattern());
+        return patterns;
+    }
+
+    public Patterns getStopCommandPattern(StopCommand stopCommand) throws Exception {
+        List<Pattern> ps = new ArrayList<Pattern>();
+        AsterixInstance asterixInstance = lookupService.getAsterixInstance(stopCommand.getAsterixInstanceName());
+        Cluster cluster = asterixInstance.getCluster();
+
+        String ccLocation = cluster.getMasterNode().getId();
+        Pattern createCC = createCCStopPattern(ccLocation);
+        addInitialDelay(createCC, 5, "sec");
+        ps.add(createCC);
+
+        String asterixInstanceName = stopCommand.getAsterixInstanceName();
+        int nodeControllerIndex = 1;
+        for (Node node : cluster.getNode()) {
+            Pattern createNC = createNCStopPattern(node.getId(), asterixInstanceName + "_" + nodeControllerIndex);
+            ps.add(createNC);
+            nodeControllerIndex++;
+        }
+
+        Patterns patterns = new Patterns(ps);
+        return patterns;
+    }
+
+    public Patterns getBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        BackupType backupType = BackupInfo.getBackupType(backupConf);
+        Patterns patterns = null;
+        switch (backupType) {
+            case HDFS:
+                patterns = getHDFSBackUpAsterixPattern(instance, backupConf);
+                break;
+            case LOCAL:
+                patterns = getLocalBackUpAsterixPattern(instance, backupConf);
+                break;
+        }
+        return patterns;
+    }
+
+    public Patterns getRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        BackupType backupType = backupInfo.getBackupType();
+        Patterns patterns = null;
+        switch (backupType) {
+            case HDFS:
+                patterns = getHDFSRestoreAsterixPattern(instance, backupInfo);
+                break;
+            case LOCAL:
+                patterns = getLocalRestoreAsterixPattern(instance, backupInfo);
+                break;
+        }
+        return patterns;
+    }
+
+    private Patterns getHDFSBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String hdfsUrl = backupConf.getHdfs().getUrl();
+        String hadoopVersion = backupConf.getHdfs().getVersion();
+        String hdfsBackupDir = backupConf.getBackupDir();
+        VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl, hadoopVersion, hdfsBackupDir);
+        String workingDir = cluster.getWorkingDir().getDir();
+        String backupId = "" + instance.getBackupInfo().size();
+        String store;
+        String pargs;
+        String iodevices;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            iodevices = node.getIodevices() == null ? instance.getCluster().getIodevices() : node.getIodevices();
+            store = node.getStore() == null ? cluster.getStore() : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+            Event event = new Event("backup", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    private Patterns getLocalBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String backupDir = backupConf.getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String backupId = "" + instance.getBackupInfo().size();
+        String iodevices;
+        String store;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            iodevices = node.getIodevices() == null ? instance.getCluster().getIodevices() : node.getIodevices();
+            store = node.getStore() == null ? cluster.getStore() : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + backupDir + " " + "local" + " " + node.getId();
+            Event event = new Event("backup", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns getHDFSRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String hdfsUrl = backupInfo.getBackupConf().getHdfs().getUrl();
+        String hadoopVersion = backupInfo.getBackupConf().getHdfs().getVersion();
+        String hdfsBackupDir = backupInfo.getBackupConf().getBackupDir();
+        VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl, hadoopVersion, hdfsBackupDir);
+        String workingDir = cluster.getWorkingDir().getDir();
+        int backupId = backupInfo.getId();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+            Event event = new Event("restore", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns getLocalRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String backupDir = backupInfo.getBackupConf().getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        int backupId = backupInfo.getId();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + backupDir + " " + "local" + " " + node.getId();
+            Event event = new Event("restore", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns createHadoopLibraryTransferPattern(Cluster cluster) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        File hadoopDir = new File(InstallerDriver.getManagixHome() + File.separator
+                + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "hadoop-" + hadoopVersion);
+        if (!hadoopDir.exists()) {
+            throw new IllegalStateException("Hadoop version :" + hadoopVersion + " not supported");
+        }
+
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+        String pargs = username + " " + hadoopDir.getAbsolutePath() + " " + cluster.getMasterNode().getClusterIp()
+                + " " + workingDir;
+        Event event = new Event("directory_transfer", nodeid, pargs);
+        Pattern p = new Pattern(null, 1, null, event);
+        addInitialDelay(p, 2, "sec");
+        patternList.add(p);
+
+        boolean copyToNC = !cluster.getWorkingDir().isNFS();
+        if (copyToNC) {
+            for (Node node : cluster.getNode()) {
+                nodeid = new Nodeid(new Value(null, node.getId()));
+                pargs = cluster.getUsername() + " " + hadoopDir.getAbsolutePath() + " " + node.getClusterIp() + " "
+                        + workingDir;
+                event = new Event("directory_transfer", nodeid, pargs);
+                p = new Pattern(null, 1, null, event);
+                addInitialDelay(p, 2, "sec");
+                patternList.add(p);
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    public Patterns createDeleteInstancePattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        patternList.addAll(createRemoveAsterixStoragePattern(instance).getPattern());
+        if (instance.getBackupInfo() != null && instance.getBackupInfo().size() > 0) {
+            List<BackupInfo> backups = instance.getBackupInfo();
+            Set<String> removedBackupDirsHDFS = new HashSet<String>();
+            Set<String> removedBackupDirsLocal = new HashSet<String>();
+
+            String backupDir;
+            for (BackupInfo binfo : backups) {
+                backupDir = binfo.getBackupConf().getBackupDir();
+                switch (binfo.getBackupType()) {
+                    case HDFS:
+                        if (removedBackupDirsHDFS.contains(backups)) {
+                            continue;
+                        }
+                        patternList.addAll(createRemoveHDFSBackupPattern(instance, backupDir).getPattern());
+                        removedBackupDirsHDFS.add(backupDir);
+                        break;
+
+                    case LOCAL:
+                        if (removedBackupDirsLocal.contains(backups)) {
+                            continue;
+                        }
+                        patternList.addAll(createRemoveLocalBackupPattern(instance, backupDir).getPattern());
+                        removedBackupDirsLocal.add(backupDir);
+                        break;
+                }
+
+            }
+        }
+        patternList.addAll(createRemoveAsterixLogDirPattern(instance).getPattern());
+        patternList.addAll(createRemoveAsterixRootMetadata(instance).getPattern());
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveHDFSBackupPattern(AsterixInstance instance, String hdfsBackupDir) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String hdfsUrl = InstallerDriver.getConfiguration().getBackup().getHdfs().getUrl();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        String workingDir = cluster.getWorkingDir().getDir();
+        Node launchingNode = cluster.getNode().get(0);
+        Nodeid nodeid = new Nodeid(new Value(null, launchingNode.getId()));
+        String pathToDelete = hdfsBackupDir + File.separator + instance.getName();
+        String pargs = workingDir + " " + hadoopVersion + " " + hdfsUrl + " " + pathToDelete;
+        Event event = new Event("hdfs_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveLocalBackupPattern(AsterixInstance instance, String localBackupDir) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+
+        String pathToDelete = localBackupDir + File.separator + instance.getName();
+        String pargs = pathToDelete;
+        List<String> removedBackupDirs = new ArrayList<String>();
+        for (Node node : cluster.getNode()) {
+            if (removedBackupDirs.contains(node.getClusterIp())) {
+                continue;
+            }
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            Event event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+            removedBackupDirs.add(node.getClusterIp());
+        }
+
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    public Patterns createRemoveAsterixWorkingDirPattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String pargs = workingDir;
+        Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode().getId()));
+        Event event = new Event("file_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
+
+        if (!cluster.getWorkingDir().isNFS()) {
+            for (Node node : cluster.getNode()) {
+                nodeid = new Nodeid(new Value(null, node.getId()));
+                event = new Event("file_delete", nodeid, pargs);
+                patternList.add(new Pattern(null, 1, null, event));
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveAsterixRootMetadata(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        Nodeid nodeid = null;
+        String pargs = null;
+        Event event = null;
+        for (Node node : cluster.getNode()) {
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            String primaryIODevice = iodevices.split(",")[0].trim();
+            pargs = primaryIODevice + File.separator + BackupCommand.ASTERIX_ROOT_METADATA_DIR;
+            nodeid = new Nodeid(new Value(null, node.getId()));
+            event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveAsterixLogDirPattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String pargs = instance.getCluster().getLogdir();
+        Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode().getId()));
+        Event event = new Event("file_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
+
+        for (Node node : cluster.getNode()) {
+            nodeid = new Nodeid(new Value(null, node.getId()));
+            event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveAsterixStoragePattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String pargs = null;
+
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String[] nodeIODevices;
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeIODevices = iodevices.trim().split(",");
+            for (String nodeIODevice : nodeIODevices) {
+                String nodeStore = node.getStore() == null ? cluster.getStore() : node.getStore();
+                pargs = nodeIODevice.trim() + File.separator + nodeStore;
+                Event event = new Event("file_delete", nodeid, pargs);
+                patternList.add(new Pattern(null, 1, null, event));
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Pattern createCopyHyracksPattern(String instanceName, Cluster cluster, String destinationIp, String destDir) {
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String fileToTransfer = new File(InstallerDriver.getAsterixDir() + File.separator + instanceName
+                + File.separator + asterixZipName).getAbsolutePath();
+        String pargs = username + " " + fileToTransfer + " " + destinationIp + " " + destDir + " " + "unpack";
+        Event event = new Event("file_transfer", nodeid, pargs);
+        return new Pattern(null, 1, null, event);
+    }
+
+    private Pattern createCCStartPattern(String hostId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("cc_start", nodeid, "");
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createCCStopPattern(String hostId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("cc_failure", nodeid, null);
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createNCStartPattern(String ccHost, String hostId, String nodeControllerId, String iodevices) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        String pargs = ccHost + " " + nodeControllerId + " " + iodevices;
+        Event event = new Event("node_join", nodeid, pargs);
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createNCStopPattern(String hostId, String nodeControllerId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("node_failure", nodeid, nodeControllerId);
+        return new Pattern(null, 1, null, event);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
new file mode 100644
index 0000000..9f8b28d
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Properties;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+
+public class AsterixInstance implements Serializable {
+
+	private static final long serialVersionUID = 2874439550187520449L;
+
+	public enum State {
+		ACTIVE, INACTIVE, UNUSABLE
+	}
+
+	private final Cluster cluster;
+	private final String name;
+	private final Date createdTimestamp;
+	private Date stateChangeTimestamp;
+	private Date modifiedTimestamp;
+	private Properties configuration;
+	private State state;
+	private final String metadataNodeId;
+	private final String asterixVersion;
+	private final List<BackupInfo> backupInfo;
+	private final String webInterfaceUrl;
+	private AsterixRuntimeState runtimeState;
+	private State previousState;
+
+	public AsterixInstance(String name, Cluster cluster,
+			Properties configuration, String metadataNodeId,
+			String asterixVersion) {
+		this.name = name;
+		this.cluster = cluster;
+		this.configuration = configuration;
+		this.metadataNodeId = metadataNodeId;
+		this.state = State.ACTIVE;
+		this.previousState = State.UNUSABLE;
+		this.asterixVersion = asterixVersion;
+		this.createdTimestamp = new Date();
+		this.backupInfo = new ArrayList<BackupInfo>();
+		this.webInterfaceUrl = "http://"
+				+ cluster.getMasterNode().getClusterIp() + ":" + 19001;
+	}
+
+	public Date getModifiedTimestamp() {
+		return stateChangeTimestamp;
+	}
+
+	public Properties getConfiguration() {
+		return configuration;
+	}
+
+	public void setConfiguration(Properties properties) {
+		this.configuration = properties;
+	}
+
+	public State getState() {
+		return state;
+	}
+
+	public void setState(State state) {
+		this.previousState = this.state;
+		this.state = state;
+	}
+
+	public Cluster getCluster() {
+		return cluster;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public Date getCreatedTimestamp() {
+		return createdTimestamp;
+	}
+
+	public Date getStateChangeTimestamp() {
+		return stateChangeTimestamp;
+	}
+
+	public void setStateChangeTimestamp(Date stateChangeTimestamp) {
+		this.stateChangeTimestamp = stateChangeTimestamp;
+	}
+
+	public void setModifiedTimestamp(Date modifiedTimestamp) {
+		this.modifiedTimestamp = modifiedTimestamp;
+	}
+
+	public String getMetadataNodeId() {
+		return metadataNodeId;
+	}
+
+	public String getAsterixVersion() {
+		return asterixVersion;
+	}
+
+	public String getDescription(boolean detailed) {
+		StringBuffer buffer = new StringBuffer();
+		buffer.append("Name:" + name + "\n");
+		buffer.append("Created:" + createdTimestamp + "\n");
+		buffer.append("Web-Url:" + webInterfaceUrl + "\n");
+		buffer.append("State:" + state);
+		if (!state.equals(State.UNUSABLE) && stateChangeTimestamp != null) {
+			buffer.append(" (" + stateChangeTimestamp + ")" + "\n");
+		} else {
+			buffer.append("\n");
+		}
+		if (modifiedTimestamp != null) {
+			buffer.append("Last modified timestamp:" + modifiedTimestamp + "\n");
+		}
+
+		if (runtimeState.getSummary() != null
+				&& runtimeState.getSummary().length() > 0) {
+			buffer.append("\nWARNING!:" + runtimeState.getSummary() + "\n");
+		}
+		if (detailed) {
+			addDetailedInformation(buffer);
+		}
+		return buffer.toString();
+	}
+
+	public List<BackupInfo> getBackupInfo() {
+		return backupInfo;
+	}
+
+	public String getWebInterfaceUrl() {
+		return webInterfaceUrl;
+	}
+
+	public AsterixRuntimeState getAsterixRuntimeState() {
+		return runtimeState;
+	}
+
+	public void setAsterixRuntimeStates(AsterixRuntimeState runtimeState) {
+		this.runtimeState = runtimeState;
+	}
+
+	private void addDetailedInformation(StringBuffer buffer) {
+		buffer.append("Master node:" + cluster.getMasterNode().getId() + ":"
+				+ cluster.getMasterNode().getClusterIp() + "\n");
+		for (Node node : cluster.getNode()) {
+			buffer.append(node.getId() + ":" + node.getClusterIp() + "\n");
+		}
+
+		if (backupInfo != null && backupInfo.size() > 0) {
+			for (BackupInfo info : backupInfo) {
+				buffer.append(info + "\n");
+			}
+		}
+		buffer.append("\n");
+		buffer.append("Asterix version:" + asterixVersion + "\n");
+		buffer.append("Metadata Node:" + metadataNodeId + "\n");
+		buffer.append("Processes" + "\n");
+		for (ProcessInfo pInfo : runtimeState.getProcesses()) {
+			buffer.append(pInfo + "\n");
+		}
+
+	}
+
+	public State getPreviousState() {
+		return previousState;
+	}
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
new file mode 100644
index 0000000..207c570
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class AsterixRuntimeState implements Serializable {
+
+    private final List<ProcessInfo> processes;
+    private final List<String> failedNCs;
+    private final boolean ccRunning;
+    private String summary;
+
+    public AsterixRuntimeState(List<ProcessInfo> processes, List<String> failedNCs, boolean ccRunning) {
+        this.processes = processes;
+        this.failedNCs = failedNCs;
+        this.ccRunning = ccRunning;
+    }
+
+    public List<ProcessInfo> getProcesses() {
+        return processes;
+    }
+
+    public List<String> getFailedNCs() {
+        return failedNCs;
+    }
+
+    public boolean isCcRunning() {
+        return ccRunning;
+    }
+
+    public void setSummary(String summary) {
+        this.summary = summary;
+    }
+
+    public String getSummary() {
+        return summary;
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
new file mode 100644
index 0000000..cea8087
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.Date;
+
+import edu.uci.ics.asterix.installer.schema.conf.Backup;
+import edu.uci.ics.asterix.installer.schema.conf.Hdfs;
+
+public class BackupInfo implements Serializable {
+
+    public static enum BackupType {
+        LOCAL,
+        HDFS
+    };
+
+    private final int id;
+    private final Date date;
+    private final Backup backupConf;
+
+    public BackupInfo(int id, Date date, Backup backupConf) {
+        this.id = id;
+        this.date = date;
+        this.backupConf = backupConf;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public Backup getBackupConf() {
+        return backupConf;
+    }
+
+    @Override
+    public String toString() {
+        return id + " " + date + " " + "(" + getBackupType() + ")" + " " + "[ " + this.getBackupConf().getBackupDir()
+                + " ]";
+
+    }
+
+    public BackupType getBackupType() {
+        return getBackupType(this.getBackupConf());
+    }
+
+    public static BackupType getBackupType(Backup backupConf) {
+        Hdfs hdfs = backupConf.getHdfs();
+        return (hdfs != null && hdfs.getUrl() != null && hdfs.getUrl().length() > 0) ? BackupType.HDFS
+                : BackupType.LOCAL;
+    }
+}
\ No newline at end of file
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
new file mode 100644
index 0000000..b605889
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.model;
+
+public class EventList {
+
+    public enum EventType {
+        NODE_JOIN,
+        NODE_FAILURE,
+        CC_START,
+        CC_FAILURE,
+        BACKUP,
+        RESTORE,
+        FILE_DELETE,
+        HDFS_DELETE,
+        FILE_TRANSFER,
+        FILE_CREATE,
+        DIRECTORY_TRANSFER,
+        NODE_INFO
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
new file mode 100644
index 0000000..42ee112
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.model;
+
+import java.io.Serializable;
+
+public class ProcessInfo implements Serializable {
+
+    private static final long serialVersionUID = 304186774065853730L;
+    private final String processName;
+    private final String host;
+    private final String nodeId;
+    private final int processId;
+
+    public ProcessInfo(String processName, String host, String nodeId, int processId) {
+        this.processName = processName;
+        this.host = host;
+        this.nodeId = nodeId;
+        this.processId = processId;
+    }
+
+    public String getProcessName() {
+        return processName;
+    }
+
+    public String getHost() {
+        return host;
+    }
+
+    public int getProcessId() {
+        return processId;
+    }
+
+    public String getNodeId() {
+        return nodeId;
+    }
+
+    public String toString() {
+        return processName + " at " + nodeId + " [ " + processId + " ] ";
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
new file mode 100644
index 0000000..aad963f
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.service;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public interface ILookupService {
+
+    public void writeAsterixInstance(AsterixInstance asterixInstance) throws Exception;
+
+    public AsterixInstance getAsterixInstance(String name) throws Exception;
+
+    public boolean isRunning(Configuration conf) throws Exception;
+
+    public void startService(Configuration conf) throws Exception;
+
+    public void stopService(Configuration conf) throws Exception;
+
+    public boolean exists(String name) throws Exception;
+
+    public void removeAsterixInstance(String name) throws Exception;
+
+    public List<AsterixInstance> getAsterixInstances() throws Exception;
+
+    public void updateAsterixInstance(AsterixInstance updatedInstance) throws Exception;
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
new file mode 100644
index 0000000..1a9e9e6
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.service;
+
+public class ServiceProvider {
+
+    public static ServiceProvider INSTANCE = new ServiceProvider();
+    private static ILookupService lookupService = new ZooKeeperService();
+    
+    private ServiceProvider() {
+
+    }
+
+    public ILookupService getLookupService() {
+        return lookupService;
+    }
+ 
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
new file mode 100644
index 0000000..b87d721
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
@@ -0,0 +1,246 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.installer.service;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.log4j.Logger;
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import org.apache.zookeeper.ZooDefs.Ids;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.Stat;
+
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public class ZooKeeperService implements ILookupService {
+
+    private static final Logger LOGGER = Logger.getLogger(ZooKeeperService.class.getName());
+
+    private static final int ZOOKEEPER_LEADER_CONN_PORT = 2222;
+    private static final int ZOOKEEPER_LEADER_ELEC_PORT = 2223;
+    private static final int ZOOKEEPER_SESSION_TIME_OUT = 40 * 1000; //milliseconds
+    private static final String ZOOKEEPER_HOME = InstallerDriver.getManagixHome() + File.separator
+            + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "zookeeper";
+    private static final String ZOO_KEEPER_CONFIG = ZOOKEEPER_HOME + File.separator + "zk.cfg";
+
+    private boolean isRunning = false;
+    private ZooKeeper zk;
+    private String zkConnectionString;
+    private static final String ASTERIX_INSTANCE_BASE_PATH = "/Asterix";
+    private static final int DEFAULT_NODE_VERSION = -1;
+    private LinkedBlockingQueue<String> msgQ = new LinkedBlockingQueue<String>();
+    private ZooKeeperWatcher watcher = new ZooKeeperWatcher(msgQ);
+
+    public boolean isRunning(Configuration conf) throws Exception {
+        List<String> servers = conf.getZookeeper().getServers().getServer();
+        int clientPort = conf.getZookeeper().getClientPort().intValue();
+        StringBuffer connectionString = new StringBuffer();
+        for (String serverAddress : servers) {
+            connectionString.append(serverAddress);
+            connectionString.append(":");
+            connectionString.append(clientPort);
+            connectionString.append(",");
+        }
+        if (connectionString.length() > 0) {
+            connectionString.deleteCharAt(connectionString.length() - 1);
+        }
+        zkConnectionString = connectionString.toString();
+
+        zk = new ZooKeeper(zkConnectionString, ZOOKEEPER_SESSION_TIME_OUT, watcher);
+        try {
+            zk.exists("/dummy", watcher);
+            if (LOGGER.isDebugEnabled()) {
+                LOGGER.debug("ZooKeeper running at " + connectionString);
+            }
+            createRootIfNotExist();
+            isRunning = true;
+        } catch (KeeperException ke) {
+            isRunning = false;
+        }
+        return isRunning;
+    }
+
+    public void startService(Configuration conf) throws Exception {
+        if (LOGGER.isDebugEnabled()) {
+            LOGGER.debug("Starting ZooKeeper at " + zkConnectionString);
+        }
+        ZookeeperUtil.writeConfiguration(ZOO_KEEPER_CONFIG, conf, ZOOKEEPER_LEADER_CONN_PORT,
+                ZOOKEEPER_LEADER_ELEC_PORT);
+        String initScript = ZOOKEEPER_HOME + File.separator + "bin" + File.separator + "zk.init";
+        StringBuffer cmdBuffer = new StringBuffer();
+        cmdBuffer.append(initScript + " ");
+        cmdBuffer.append(conf.getZookeeper().getHomeDir() + " ");
+        cmdBuffer.append(conf.getZookeeper().getServers().getJavaHome() + " ");
+        List<String> zkServers = conf.getZookeeper().getServers().getServer();
+        for (String zkServer : zkServers) {
+            cmdBuffer.append(zkServer + " ");
+        }
+        Runtime.getRuntime().exec(cmdBuffer.toString());
+        zk = new ZooKeeper(zkConnectionString, ZOOKEEPER_SESSION_TIME_OUT, watcher);
+        String head = msgQ.poll(10, TimeUnit.SECONDS);
+        if (head == null) {
+            String msg = "Unable to start Zookeeper Service. Please verify the configuration at "
+                    + InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_CONF_XML;
+            throw new Exception(msg);
+        }
+        msgQ.take();
+        createRootIfNotExist();
+    }
+
+    public void stopService(Configuration conf) throws Exception {
+        if (LOGGER.isDebugEnabled()) {
+            LOGGER.debug("Stopping ZooKeeper running at " + zkConnectionString);
+        }
+        String stopScript = ZOOKEEPER_HOME + File.separator + "bin" + File.separator + "stop_zk";
+        StringBuffer cmdBuffer = new StringBuffer();
+        cmdBuffer.append(stopScript + " ");
+        cmdBuffer.append(conf.getZookeeper().getHomeDir() + " ");
+        List<String> zkServers = conf.getZookeeper().getServers().getServer();
+        for (String zkServer : zkServers) {
+            cmdBuffer.append(zkServer + " ");
+        }
+        Runtime.getRuntime().exec(cmdBuffer.toString());
+        if (LOGGER.isDebugEnabled()) {
+            LOGGER.debug("Stopped ZooKeeper service at " + zkConnectionString);
+        }
+    }
+
+    public void writeAsterixInstance(AsterixInstance asterixInstance) throws Exception {
+        String instanceBasePath = ASTERIX_INSTANCE_BASE_PATH + File.separator + asterixInstance.getName();
+        ByteArrayOutputStream b = new ByteArrayOutputStream();
+        ObjectOutputStream o = new ObjectOutputStream(b);
+        o.writeObject(asterixInstance);
+        zk.create(instanceBasePath, b.toByteArray(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
+    }
+
+    private void createRootIfNotExist() throws Exception {
+        try {
+            Stat stat = zk.exists(ASTERIX_INSTANCE_BASE_PATH, false);
+            if (stat == null) {
+                zk.create(ASTERIX_INSTANCE_BASE_PATH, "root".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
+            }
+        } catch (Exception e) {
+            createRootIfNotExist();
+        }
+    }
+
+    public AsterixInstance getAsterixInstance(String name) throws Exception {
+        String path = ASTERIX_INSTANCE_BASE_PATH + File.separator + name;
+        Stat stat = zk.exists(ASTERIX_INSTANCE_BASE_PATH + File.separator + name, false);
+        if (stat == null) {
+            return null;
+        }
+        byte[] asterixInstanceBytes = zk.getData(path, false, new Stat());
+        return readAsterixInstanceObject(asterixInstanceBytes);
+    }
+
+    public boolean exists(String asterixInstanceName) throws Exception {
+        return zk.exists(ASTERIX_INSTANCE_BASE_PATH + File.separator + asterixInstanceName, false) != null;
+    }
+
+    public void removeAsterixInstance(String name) throws Exception {
+        if (!exists(name)) {
+            throw new InstallerException("Asterix instance by name " + name + " does not exists.");
+        }
+        zk.delete(ASTERIX_INSTANCE_BASE_PATH + File.separator + name, DEFAULT_NODE_VERSION);
+    }
+
+    public List<AsterixInstance> getAsterixInstances() throws Exception {
+        List<String> instanceNames = zk.getChildren(ASTERIX_INSTANCE_BASE_PATH, false);
+        List<AsterixInstance> asterixInstances = new ArrayList<AsterixInstance>();
+        String path;
+        for (String instanceName : instanceNames) {
+            path = ASTERIX_INSTANCE_BASE_PATH + File.separator + instanceName;
+            byte[] asterixInstanceBytes = zk.getData(path, false, new Stat());
+            asterixInstances.add(readAsterixInstanceObject(asterixInstanceBytes));
+        }
+        return asterixInstances;
+    }
+
+    private AsterixInstance readAsterixInstanceObject(byte[] asterixInstanceBytes) throws IOException,
+            ClassNotFoundException {
+        ByteArrayInputStream b = new ByteArrayInputStream(asterixInstanceBytes);
+        ObjectInputStream ois = new ObjectInputStream(b);
+        return (AsterixInstance) ois.readObject();
+    }
+
+    public void updateAsterixInstance(AsterixInstance updatedInstance) throws Exception {
+        removeAsterixInstance(updatedInstance.getName());
+        writeAsterixInstance(updatedInstance);
+    }
+
+}
+
+class ZooKeeperWatcher implements Watcher {
+
+    private boolean isRunning = true;
+    private LinkedBlockingQueue<String> msgQ;
+
+    public ZooKeeperWatcher(LinkedBlockingQueue<String> msgQ) {
+        this.msgQ = msgQ;
+    }
+
+    public void process(WatchedEvent wEvent) {
+        switch (wEvent.getState()) {
+            case SyncConnected:
+                msgQ.add("connected");
+                break;
+        }
+    }
+
+    public boolean isRunning() {
+        return isRunning;
+    }
+
+}
+
+class ZookeeperUtil {
+
+    public static void writeConfiguration(String zooKeeperConfigPath, Configuration conf, int leaderConnPort,
+            int leaderElecPort) throws IOException {
+
+        StringBuffer buffer = new StringBuffer();
+        buffer.append("tickTime=1000" + "\n");
+        buffer.append("dataDir=" + conf.getZookeeper().getHomeDir() + File.separator + "data" + "\n");
+        buffer.append("clientPort=" + conf.getZookeeper().getClientPort().intValue() + "\n");
+        buffer.append("initLimit=" + 2 + "\n");
+        buffer.append("syncLimit=" + 2 + "\n");
+
+        List<String> servers = conf.getZookeeper().getServers().getServer();
+        int serverId = 1;
+        for (String server : servers) {
+            buffer.append("server" + "." + serverId + "=" + server + ":" + leaderConnPort + ":" + leaderElecPort + "\n");
+            serverId++;
+        }
+        InstallerUtil.dumpToFile(zooKeeperConfigPath, buffer.toString());
+    }
+
+}
diff --git a/asterix-installer/src/main/resources/clusters/local/conf/asterix.conf b/asterix-installer/src/main/resources/clusters/local/conf/asterix.conf
new file mode 100644
index 0000000..659b48e
--- /dev/null
+++ b/asterix-installer/src/main/resources/clusters/local/conf/asterix.conf
@@ -0,0 +1 @@
+output_dir=/tmp/asterix_output/
diff --git a/asterix-installer/src/main/resources/clusters/local/local.xml b/asterix-installer/src/main/resources/clusters/local/local.xml
new file mode 100644
index 0000000..d397bcd
--- /dev/null
+++ b/asterix-installer/src/main/resources/clusters/local/local.xml
@@ -0,0 +1,21 @@
+<cluster xmlns="cluster">
+  <name>local</name>
+  <workingDir>
+    <dir>/tmp/asterix-installer</dir>
+    <NFS>true</NFS>
+  </workingDir>
+  <logdir>/tmp/asterix/logs</logdir>
+  <iodevices>/tmp</iodevices>
+  <store>asterix/storage</store>
+  <java_home></java_home>
+  <java_opts>-Xmx1024m</java_opts>
+  <master-node>
+    <id>master</id>
+    <client-ip>127.0.0.1</client-ip>
+    <cluster-ip>127.0.0.1</cluster-ip>
+  </master-node>
+  <node>
+    <id>node1</id>
+    <cluster-ip>127.0.0.1</cluster-ip>
+  </node>
+</cluster>
diff --git a/asterix-installer/src/main/resources/conf/log4j.properties b/asterix-installer/src/main/resources/conf/log4j.properties
new file mode 100644
index 0000000..fedf941
--- /dev/null
+++ b/asterix-installer/src/main/resources/conf/log4j.properties
@@ -0,0 +1,9 @@
+log4j.rootLogger=info, A1
+
+log4j.appender.A1=org.apache.log4j.ConsoleAppender
+log4j.appender.A1.layout=org.apache.log4j.PatternLayout
+# Print the date in ISO 8601 format
+log4j.appender.A1.layout.ConversionPattern=%-p: %m%n
+
+log4j.logger.edu.uci.ics.asterix.event.management=error
+log4j.logger.org.apache.zookeeper=error
diff --git a/asterix-installer/src/main/resources/conf/managix-conf.xml b/asterix-installer/src/main/resources/conf/managix-conf.xml
new file mode 100644
index 0000000..10a62a9
--- /dev/null
+++ b/asterix-installer/src/main/resources/conf/managix-conf.xml
@@ -0,0 +1,16 @@
+<configuration xmlns="installer">
+  <backup>
+    <hdfs>
+      <version>0.20.2</version>
+      <url></url>
+      <backupDir></backupDir>
+    </hdfs>
+  </backup>
+  <zookeeper>
+    <homeDir>/tmp/zookeeper</homeDir>
+    <clientPort>2900</clientPort>
+    <servers>
+      <server>127.0.0.1</server>
+    </servers>
+  </zookeeper>
+</configuration>
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop
new file mode 100755
index 0000000..683e95d
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop
@@ -0,0 +1,290 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# The Hadoop command script
+#
+# Environment Variables
+#
+#   JAVA_HOME        The java implementation to use.  Overrides JAVA_HOME.
+#
+#   HADOOP_CLASSPATH Extra Java CLASSPATH entries.
+#
+#   HADOOP_HEAPSIZE  The maximum amount of heap to use, in MB. 
+#                    Default is 1000.
+#
+#   HADOOP_OPTS      Extra Java runtime options.
+#   
+#   HADOOP_NAMENODE_OPTS       These options are added to HADOOP_OPTS 
+#   HADOOP_CLIENT_OPTS         when the respective command is run.
+#   HADOOP_{COMMAND}_OPTS etc  HADOOP_JT_OPTS applies to JobTracker 
+#                              for e.g.  HADOOP_CLIENT_OPTS applies to 
+#                              more than one command (fs, dfs, fsck, 
+#                              dfsadmin etc)  
+#
+#   HADOOP_CONF_DIR  Alternate conf dir. Default is ${HADOOP_HOME}/conf.
+#
+#   HADOOP_ROOT_LOGGER The root appender. Default is INFO,console
+#
+
+bin=`dirname "$0"`
+bin=`cd "$bin"; pwd`
+
+. "$bin"/hadoop-config.sh
+
+cygwin=false
+case "`uname`" in
+CYGWIN*) cygwin=true;;
+esac
+
+# if no args specified, show usage
+if [ $# = 0 ]; then
+  echo "Usage: hadoop [--config confdir] COMMAND"
+  echo "where COMMAND is one of:"
+  echo "  namenode -format     format the DFS filesystem"
+  echo "  secondarynamenode    run the DFS secondary namenode"
+  echo "  namenode             run the DFS namenode"
+  echo "  datanode             run a DFS datanode"
+  echo "  dfsadmin             run a DFS admin client"
+  echo "  mradmin              run a Map-Reduce admin client"
+  echo "  fsck                 run a DFS filesystem checking utility"
+  echo "  fs                   run a generic filesystem user client"
+  echo "  balancer             run a cluster balancing utility"
+  echo "  jobtracker           run the MapReduce job Tracker node" 
+  echo "  pipes                run a Pipes job"
+  echo "  tasktracker          run a MapReduce task Tracker node" 
+  echo "  job                  manipulate MapReduce jobs"
+  echo "  queue                get information regarding JobQueues" 
+  echo "  version              print the version"
+  echo "  jar <jar>            run a jar file"
+  echo "  distcp <srcurl> <desturl> copy file or directories recursively"
+  echo "  archive -archiveName NAME <src>* <dest> create a hadoop archive"
+  echo "  daemonlog            get/set the log level for each daemon"
+  echo " or"
+  echo "  CLASSNAME            run the class named CLASSNAME"
+  echo "Most commands print help when invoked w/o parameters."
+  exit 1
+fi
+
+# get arguments
+COMMAND=$1
+shift
+
+if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
+  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
+fi
+
+# some Java parameters
+if [ "$JAVA_HOME" != "" ]; then
+  #echo "run java in $JAVA_HOME"
+  JAVA_HOME=$JAVA_HOME
+fi
+  
+if [ "$JAVA_HOME" = "" ]; then
+  echo "Error: JAVA_HOME is not set."
+  exit 1
+fi
+
+JAVA=$JAVA_HOME/bin/java
+JAVA_HEAP_MAX=-Xmx1000m 
+
+# check envvars which might override default args
+if [ "$HADOOP_HEAPSIZE" != "" ]; then
+  #echo "run with heapsize $HADOOP_HEAPSIZE"
+  JAVA_HEAP_MAX="-Xmx""$HADOOP_HEAPSIZE""m"
+  #echo $JAVA_HEAP_MAX
+fi
+
+# CLASSPATH initially contains $HADOOP_CONF_DIR
+CLASSPATH=${HADOOP_CONF_DIR}
+CLASSPATH=${CLASSPATH}:$JAVA_HOME/lib/tools.jar
+
+# for developers, add Hadoop classes to CLASSPATH
+if [ -d "$HADOOP_HOME/build/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/classes
+fi
+if [ -d "$HADOOP_HOME/build/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build
+fi
+if [ -d "$HADOOP_HOME/build/test/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/test/classes
+fi
+if [ -d "$HADOOP_HOME/build/tools" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/tools
+fi
+
+# so that filenames w/ spaces are handled correctly in loops below
+IFS=
+
+# for releases, add core hadoop jar & webapps to CLASSPATH
+if [ -d "$HADOOP_HOME/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME
+fi
+for f in $HADOOP_HOME/hadoop-*-core.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+# add libs to CLASSPATH
+for f in $HADOOP_HOME/lib/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+if [ -d "$HADOOP_HOME/build/ivy/lib/Hadoop/common" ]; then
+for f in $HADOOP_HOME/build/ivy/lib/Hadoop/common/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+fi
+
+for f in $HADOOP_HOME/lib/jsp-2.1/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+for f in $HADOOP_HOME/hadoop-*-tools.jar; do
+  TOOL_PATH=${TOOL_PATH}:$f;
+done
+for f in $HADOOP_HOME/build/hadoop-*-tools.jar; do
+  TOOL_PATH=${TOOL_PATH}:$f;
+done
+
+# add user-specified CLASSPATH last
+if [ "$HADOOP_CLASSPATH" != "" ]; then
+  CLASSPATH=${HADOOP_CLASSPATH}:${CLASSPATH}
+fi
+
+# default log directory & file
+if [ "$HADOOP_LOG_DIR" = "" ]; then
+  HADOOP_LOG_DIR="$HADOOP_HOME/logs"
+fi
+if [ "$HADOOP_LOGFILE" = "" ]; then
+  HADOOP_LOGFILE='hadoop.log'
+fi
+
+# default policy file for service-level authorization
+if [ "$HADOOP_POLICYFILE" = "" ]; then
+  HADOOP_POLICYFILE="hadoop-policy.xml"
+fi
+
+# restore ordinary behaviour
+unset IFS
+
+# figure out which class to run
+if [ "$COMMAND" = "namenode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.namenode.NameNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_NAMENODE_OPTS"
+elif [ "$COMMAND" = "secondarynamenode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_SECONDARYNAMENODE_OPTS"
+elif [ "$COMMAND" = "datanode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.datanode.DataNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_DATANODE_OPTS"
+elif [ "$COMMAND" = "fs" ] ; then
+  CLASS=org.apache.hadoop.fs.FsShell
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "dfs" ] ; then
+  CLASS=org.apache.hadoop.fs.FsShell
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "dfsadmin" ] ; then
+  CLASS=org.apache.hadoop.hdfs.tools.DFSAdmin
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "mradmin" ] ; then
+  CLASS=org.apache.hadoop.mapred.tools.MRAdmin
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "fsck" ] ; then
+  CLASS=org.apache.hadoop.hdfs.tools.DFSck
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "balancer" ] ; then
+  CLASS=org.apache.hadoop.hdfs.server.balancer.Balancer
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_BALANCER_OPTS"
+elif [ "$COMMAND" = "jobtracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_JOBTRACKER_OPTS"
+elif [ "$COMMAND" = "tasktracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.TaskTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_TASKTRACKER_OPTS"
+elif [ "$COMMAND" = "job" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobClient
+elif [ "$COMMAND" = "queue" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobQueueClient
+elif [ "$COMMAND" = "pipes" ] ; then
+  CLASS=org.apache.hadoop.mapred.pipes.Submitter
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "version" ] ; then
+  CLASS=org.apache.hadoop.util.VersionInfo
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "jar" ] ; then
+  CLASS=org.apache.hadoop.util.RunJar
+elif [ "$COMMAND" = "distcp" ] ; then
+  CLASS=org.apache.hadoop.tools.DistCp
+  CLASSPATH=${CLASSPATH}:${TOOL_PATH}
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "daemonlog" ] ; then
+  CLASS=org.apache.hadoop.log.LogLevel
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "archive" ] ; then
+  CLASS=org.apache.hadoop.tools.HadoopArchives
+  CLASSPATH=${CLASSPATH}:${TOOL_PATH}
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "sampler" ] ; then
+  CLASS=org.apache.hadoop.mapred.lib.InputSampler
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+else
+  CLASS=$COMMAND
+fi
+
+# cygwin path translation
+if $cygwin; then
+  CLASSPATH=`cygpath -p -w "$CLASSPATH"`
+  HADOOP_HOME=`cygpath -w "$HADOOP_HOME"`
+  HADOOP_LOG_DIR=`cygpath -w "$HADOOP_LOG_DIR"`
+  TOOL_PATH=`cygpath -p -w "$TOOL_PATH"`
+fi
+# setup 'java.library.path' for native-hadoop code if necessary
+JAVA_LIBRARY_PATH=''
+if [ -d "${HADOOP_HOME}/build/native" -o -d "${HADOOP_HOME}/lib/native" ]; then
+  JAVA_PLATFORM=`CLASSPATH=${CLASSPATH} ${JAVA} -Xmx32m org.apache.hadoop.util.PlatformName | sed -e "s/ /_/g"`
+  
+  if [ -d "$HADOOP_HOME/build/native" ]; then
+    JAVA_LIBRARY_PATH=${HADOOP_HOME}/build/native/${JAVA_PLATFORM}/lib
+  fi
+  
+  if [ -d "${HADOOP_HOME}/lib/native" ]; then
+    if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
+      JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}:${HADOOP_HOME}/lib/native/${JAVA_PLATFORM}
+    else
+      JAVA_LIBRARY_PATH=${HADOOP_HOME}/lib/native/${JAVA_PLATFORM}
+    fi
+  fi
+fi
+
+# cygwin path translation
+if $cygwin; then
+  JAVA_LIBRARY_PATH=`cygpath -p "$JAVA_LIBRARY_PATH"`
+fi
+
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.dir=$HADOOP_LOG_DIR"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.file=$HADOOP_LOGFILE"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.home.dir=$HADOOP_HOME"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.id.str=$HADOOP_IDENT_STRING"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.root.logger=${HADOOP_ROOT_LOGGER:-INFO,console}"
+if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
+  HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$JAVA_LIBRARY_PATH"
+fi  
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.policy.file=$HADOOP_POLICYFILE"
+
+# run it
+#echo "exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@""
+exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@"
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh
new file mode 100755
index 0000000..1f9d52d
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh
@@ -0,0 +1,68 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# included in all the hadoop scripts with source command
+# should not be executable directly
+# also should not be passed any arguments, since we need original $*
+
+# resolve links - $0 may be a softlink
+
+this="$0"
+while [ -h "$this" ]; do
+  ls=`ls -ld "$this"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '.*/.*' > /dev/null; then
+    this="$link"
+  else
+    this=`dirname "$this"`/"$link"
+  fi
+done
+
+# convert relative path to absolute path
+bin=`dirname "$this"`
+script=`basename "$this"`
+bin=`cd "$bin"; pwd`
+this="$bin/$script"
+
+# the root of the Hadoop installation
+export HADOOP_HOME=`dirname "$this"`/..
+
+#check to see if the conf dir is given as an optional argument
+if [ $# -gt 1 ]
+then
+    if [ "--config" = "$1" ]
+	  then
+	      shift
+	      confdir=$1
+	      shift
+	      HADOOP_CONF_DIR=$confdir
+    fi
+fi
+ 
+# Allow alternate conf dir location.
+HADOOP_CONF_DIR="${HADOOP_CONF_DIR:-$HADOOP_HOME/conf}"
+
+#check to see it is specified whether to use the slaves or the
+# masters file
+if [ $# -gt 1 ]
+then
+    if [ "--hosts" = "$1" ]
+    then
+        shift
+        slavesfile=$1
+        shift
+        export HADOOP_SLAVES="${HADOOP_CONF_DIR}/$slavesfile"
+    fi
+fi
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
new file mode 100644
index 0000000..e9396a4
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
@@ -0,0 +1,54 @@
+# Set Hadoop-specific environment variables here.
+
+# The only required environment variable is JAVA_HOME.  All others are
+# optional.  When running a distributed configuration it is best to
+# set JAVA_HOME in this file, so that it is correctly defined on
+# remote nodes.
+
+# The java implementation to use.  Required.
+# export JAVA_HOME=$JAVA_HOME
+
+# Extra Java CLASSPATH elements.  Optional.
+# export HADOOP_CLASSPATH=
+
+# The maximum amount of heap to use, in MB. Default is 1000.
+# export HADOOP_HEAPSIZE=2000
+
+# Extra Java runtime options.  Empty by default.
+# export HADOOP_OPTS=-server
+
+# Command specific options appended to HADOOP_OPTS when specified
+export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
+export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
+export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
+export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
+export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
+# export HADOOP_TASKTRACKER_OPTS=
+# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
+# export HADOOP_CLIENT_OPTS
+
+# Extra ssh options.  Empty by default.
+# export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR"
+
+# Where log files are stored.  $HADOOP_HOME/logs by default.
+# export HADOOP_LOG_DIR=${HADOOP_HOME}/logs
+
+# File naming remote slave hosts.  $HADOOP_HOME/conf/slaves by default.
+# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves
+
+# host:path where hadoop code should be rsync'd from.  Unset by default.
+# export HADOOP_MASTER=master:/home/$USER/src/hadoop
+
+# Seconds to sleep between slave commands.  Unset by default.  This
+# can be useful in large clusters, where, e.g., slave rsyncs can
+# otherwise arrive faster than the master can service them.
+# export HADOOP_SLAVE_SLEEP=0.1
+
+# The directory where pid files are stored. /tmp by default.
+# export HADOOP_PID_DIR=/var/hadoop/pids
+
+# A string representing this instance of hadoop. $USER by default.
+# export HADOOP_IDENT_STRING=$USER
+
+# The scheduling priority for daemon processes.  See 'man nice'.
+# export HADOOP_NICENESS=10
diff --git a/asterix-installer/src/main/resources/schema/installer-conf.xsd b/asterix-installer/src/main/resources/schema/installer-conf.xsd
new file mode 100644
index 0000000..c21fc5b
--- /dev/null
+++ b/asterix-installer/src/main/resources/schema/installer-conf.xsd
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mg="installer" targetNamespace="installer" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="asterix_home" type="xs:string"/>
+<xs:element name="hyracks_home" type="xs:string"/>
+<xs:element name="hdfsurl" type="xs:string"/>
+<xs:element name="server" type="xs:string"/>
+<xs:element name="clientPort" type="xs:integer"/>
+<xs:element name="homeDir" type="xs:string"/>
+<xs:element name="version" type="xs:string"/>
+<xs:element name="url" type="xs:string"/>
+<xs:element name="backupDir" type="xs:string"/>
+<xs:element name="java_home" type="xs:string"/>
+
+<!-- definition of complex elements -->
+<xs:element name="hdfs">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:version"/>
+      <xs:element ref="mg:url"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="backup">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:hdfs" minOccurs="0"/> 
+      <xs:element ref="mg:backupDir"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="zookeeper">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:homeDir"/>
+      <xs:element ref="mg:clientPort"/>
+      <xs:element ref="mg:servers"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="servers">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:java_home"/>
+      <xs:element ref="mg:server" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="configuration">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:backup" minOccurs="0"/>
+      <xs:element ref="mg:asterix_home" minOccurs="0"/>
+      <xs:element ref="mg:hyracks_home" minOccurs="0"/>
+      <xs:element ref="mg:hdfsurl" minOccurs="0"/>
+      <xs:element ref="mg:zookeeper"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-installer/src/main/resources/schema/jaxb-bindings.xjb b/asterix-installer/src/main/resources/schema/jaxb-bindings.xjb
new file mode 100644
index 0000000..b5982e0
--- /dev/null
+++ b/asterix-installer/src/main/resources/schema/jaxb-bindings.xjb
@@ -0,0 +1,9 @@
+<jxb:bindings version="1.0"
+xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
+xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+<jxb:globalBindings>
+  <jxb:serializable uid="1"/>
+</jxb:globalBindings>
+
+</jxb:bindings>
diff --git a/asterix-installer/src/main/resources/scripts/managix b/asterix-installer/src/main/resources/scripts/managix
new file mode 100755
index 0000000..cd0794e
--- /dev/null
+++ b/asterix-installer/src/main/resources/scripts/managix
@@ -0,0 +1,20 @@
+if [ -z $MANAGIX_HOME ] 
+ then
+   echo "MANAGIX_HOME is not defined"
+   exit 1
+fi
+
+VERSION=0.0.4-SNAPSHOT
+
+for jar in `ls $MANAGIX_HOME/lib/*.jar`
+  do 
+  if [ -z $MANAGIX_CLASSPATH ] 
+  then 
+    MANAGIX_CLASSPATH=$jar 
+  else
+    MANAGIX_CLASSPATH=$MANAGIX_CLASSPATH:$jar 
+  fi
+done
+
+MANAGIX_CLASSPATH=$MANAGIX_CLASSPATH:$MANAGIX_HOME/conf/log4j.properties
+java $JAVA_OPTS -Dlog4j.configuration=file:$MANAGIX_HOME/conf/log4j.properties -cp $MANAGIX_CLASSPATH edu.uci.ics.asterix.installer.driver.InstallerDriver $@
diff --git a/asterix-installer/src/main/resources/scripts/verify.sh b/asterix-installer/src/main/resources/scripts/verify.sh
new file mode 100755
index 0000000..cac8189
--- /dev/null
+++ b/asterix-installer/src/main/resources/scripts/verify.sh
@@ -0,0 +1,21 @@
+INSTANCE_NAME=$1
+MASTER_NODE=$2
+shift 2
+numargs=$#
+for ((i=1 ; i <= numargs ; i=i+2))
+do
+ host=$1
+ nc_id=$2
+ INFO=$(ssh $host "ps -ef | grep nc_join | grep -v grep | grep -v ssh| grep $nc_id" | head -n 1 )
+ PARENT_ID=`echo  $INFO | cut -d " "  -f2`
+ PID_INFO=$(ssh $host "ps -ef |  grep asterix | grep -v grep | grep -v nc_join |  grep $PARENT_ID") 
+ PID=`echo $PID_INFO | cut -d " " -f2`
+ echo "NC:$host:$nc_id:$PID"
+ shift 2
+done
+
+CC_PARENT_ID_INFO=$(ssh $MASTER_NODE "ps -ef  | grep asterix | grep cc_start | grep -v ssh")
+CC_PARENT_ID=`echo $CC_PARENT_ID_INFO | tr -s " " | cut -d " " -f2` 
+CC_ID_INFO=$(ssh $MASTER_NODE "ps -ef | grep asterix | grep $CC_PARENT_ID | grep -v bash")
+CC_ID=`echo $CC_ID_INFO |  tr -s " " | cut -d " " -f2`
+echo "CC:$MASTER_NODE:N/A:$CC_ID"
diff --git a/asterix-installer/src/main/resources/zookeeper/start_zk.sh b/asterix-installer/src/main/resources/zookeeper/start_zk.sh
new file mode 100755
index 0000000..68ced54
--- /dev/null
+++ b/asterix-installer/src/main/resources/zookeeper/start_zk.sh
@@ -0,0 +1,9 @@
+ZK_HOME=$1
+ZK_ID=$2
+JAVA_HOME=$3
+mkdir $ZK_HOME/data
+echo $2 > $ZK_HOME/data/myid
+CLASSPATH=$ZK_HOME/lib/zookeeper-3.4.5.jar:$ZK_HOME/lib/log4j-1.2.15.jar:$ZK_HOME/lib/slf4j-api-1.6.1.jar:$ZK_HOME/conf:$ZK_HOME/conf/log4j.properties
+ZK_CONF=$ZK_HOME/zk.cfg
+export JAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=8400,server=y,suspend=n"
+$JAVA_HOME/bin/java $JAVA_OPTS -Dlog4j.configuration="file:$ZK_HOME/conf/log4j.properties" -cp $CLASSPATH org.apache.zookeeper.server.quorum.QuorumPeerMain $ZK_CONF
diff --git a/asterix-installer/src/main/resources/zookeeper/stop_zk b/asterix-installer/src/main/resources/zookeeper/stop_zk
new file mode 100755
index 0000000..9bef86e
--- /dev/null
+++ b/asterix-installer/src/main/resources/zookeeper/stop_zk
@@ -0,0 +1,6 @@
+ZK_HOME=$1
+shift 1
+for zk_host in  $@
+do
+  ssh $zk_host "kill -15 `jps | grep QuorumPeerMain | cut -d " "  -f1`" &
+done
diff --git a/asterix-installer/src/main/resources/zookeeper/zk.init b/asterix-installer/src/main/resources/zookeeper/zk.init
new file mode 100755
index 0000000..8ef6f5f
--- /dev/null
+++ b/asterix-installer/src/main/resources/zookeeper/zk.init
@@ -0,0 +1,14 @@
+ZK_HOME=$1
+SERVER_JAVA_HOME=$2
+shift 2
+cd $MANAGIX_HOME/.installer/zookeeper
+tar cf zk.pkg.tar *
+zk_server_id=1
+for zk_host in  $@
+do
+  ssh $zk_host "mkdir -p $ZK_HOME"
+  scp ./zk.pkg.tar $zk_host:$ZK_HOME/
+  ssh $zk_host "cd $ZK_HOME && tar xf $ZK_HOME/zk.pkg.tar && chmod +x $ZK_HOME/bin/start_zk.sh"
+  ssh $zk_host "$ZK_HOME/bin/start_zk.sh $ZK_HOME $zk_server_id $SERVER_JAVA_HOME" &
+  zk_server_id=`expr $zk_server_id + 1`	
+done
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/Asterix_ADM_Parser.md b/asterix-maven-plugins/lexer-generator-maven-plugin/Asterix_ADM_Parser.md
new file mode 100644
index 0000000..eeaffc9
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/Asterix_ADM_Parser.md
@@ -0,0 +1,53 @@
+The Asterix ADM Parser
+======================
+
+The ADM parser inside Asterix is composed by two different components:
+
+* **The Parser** AdmTupleParser, which converts the adm tokens in internal objects
+* **The Lexer**  AdmLexer, which scans the adm file and returns a list of adm tokens
+
+These two classes belong to the package:
+
+    edu.uci.ics.asterix.runtime.operators.file
+
+The Parser is loaded through a factory (*AdmSchemafullRecordParserFactory*) by
+
+    edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter extends AbstractDatasourceAdapter
+
+
+How to add a new datatype
+-------------------------
+The ADM format allows two different kinds of datatype:
+
+* primitive
+* with constructor
+
+A primitive datatype allows to write the actual value of the field without extra markup:
+
+    { name : "Diego", age : 23 }
+
+while the datatypes with constructor require to specify first the type of the value and then a string with the serialized value
+
+    { center : point3d("P2.1,3,8.5") }
+
+In order to add a new datatype the steps are:
+
+1.  Add the new token to the **Lexer**
+  * **if the datatype is primite** is necessary to create a TOKEN able to recognize **the format of the value**
+  * **if the datatype is with constructor** is necessary to create **only** a TOKEN able to recognize **the name of the constructor**
+
+2.  Change the **Parser** in order to convert correctly the new token in internal objects
+  * This will require to **add new cases to the switch-case statements** and the introduction of **a serializer/deserializer object** for that datatype.
+
+
+The Lexer
+----------
+To add new datatype or change the tokens definition you have to change ONLY the file adm.grammar located in 
+	asterix-runtime/src/main/resources/adm.grammar
+The lexer will be generated from that definition file during each maven building.
+
+The maven configuration in located in asterix-runtime/pom.xml
+
+
+> Author: Diego Giorgini - diegogiorgini@gmail.com   
+> 6 December 2012
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/README.md b/asterix-maven-plugins/lexer-generator-maven-plugin/README.md
new file mode 100644
index 0000000..b3632e6
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/README.md
@@ -0,0 +1,111 @@
+Lexer Generator
+===============
+
+This tool automate the creation of Hand-Coded-Like Lexers.   
+It was created to address the performance issues of other (more advanced) lexer generators like JavaCC that arise when you need to scan TB of data. In particular it is *~20x faster* than javacc and typically can parse the data from a normal harddisk at *more than 70MBs*.
+
+
+Maven Plugin (to put inside pom.xml)
+-------------------------------------
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.0.2</version>
+                <configuration>
+                    <source>1.6</source>
+                    <target>1.6</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>edu.uci.ics.asterix</groupId>
+                <artifactId>lexer-generator-maven-plugin</artifactId>
+                <version>0.1-SNAPSHOT</version>
+                <configuration>
+                    <grammarFile>src/main/java/edu/uci/ics/asterix/runtime/operators/file/adm/adm.grammar</grammarFile>
+                    <outputDir>${project.build.directory}/generated-sources</outputDir>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>generate-lexer</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>generate-lexer</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+
+Command line
+-------------
+    LexerGenerator\nusage: java LexerGenerator <configuration file>
+
+
+
+What means Hand-Coded-Like and why it is so fast
+------------------------------------------------
+The most of the Lexers use a Finite State Machine encoded in data structure called [State Transition Table](http://en.wikipedia.org/wiki/State_transition_table).   
+While elegant and practical this approach require some extra controls and operations to deal with the data structure at runtime. A different approach consists in encoding the State Machine as actual code, in this way all the operations done are limited to the minumum amount needed to parse our grammar.   
+A common problem with this kind of hard-hand-coded lexers is that is almost impossible to do manutency and changes, this is the reason of this Lexer Generator able to produce a Hand-Coded-Like lexer starting from a grammar specification.
+
+Another big difference with the most of the LexerGenerator (expecially the ones for Java) is that since it is optimized for performance we **don't return objects** and we **use the minimum possible of objects internally**.    
+This actually is the main reason of the ~20x when compared with javacc.
+
+
+Configuration File
+------------------
+Is a simple *key: value* configuration file plus the *specification of your grammar*.   
+The four configuration keys are listed below:
+
+    # LEXER GENERATOR configuration file
+    # ---------------------------------------
+    # Place *first* the generic configuration
+    # then list your grammar.
+
+    PACKAGE:          edu.uci.ics.asterix.admfast.parser
+    LEXER_NAME:       AdmLexer
+    OUTPUT_DIR:       output/
+
+
+Specify The Grammar
+-------------------
+Your grammar has to be listed in the configuration file after the *TOKENS:* keyword.
+
+    TOKENS:
+
+    BOOLEAN_LIT        = string(boolean)
+    COMMA              = char(\,)
+    COLON              = char(:)
+    STRING_LITERAL     = char("), anythingUntil(")
+    INT_LITERAL        = signOrNothing(), digitSequence()
+    INT8_LITERAL       = token(INT_LITERAL), string(i8)
+    @EXPONENT          = caseInsensitiveChar(e), signOrNothing(), digitSequence()
+    DOUBLE_LITERAL     = signOrNothing(), digitSequence(), char(.), digitSequence(), token(@EXPONENT)
+    DOUBLE_LITERAL     = signOrNothing(), digitSequence(), token(@EXPONENT)
+
+Each token is composed by a **name** and a sequence of **rules**.   
+Each rule is then written with the format: **constructor(parameter)**  
+the list of the rules available is coded inside *NodeChainFactory.java*
+
+You can write more than a sequence of rules just addind more another line and repeating the token name.
+
+You can reuse the rules of a token inside another one with the special rule: **token(** *TOKEN_NAME* **)**
+
+Lastly you can define *auxiliary* token definitions that will not be encoded in the final lexer (but that can be useful inside other token definitions) just **startig the token name with @**.
+
+**Attention:** please pay attention to not write rules that once merged int the state machine would lead to a *conflict between transaction* like a transaction for a generic digit and one for a the digit 0 from the same node. 
+
+The result: MyLexer
+-------------------
+The result of the execution of the LexerGenerator is the creation of the Lexer inside the directory *components**.
+The lexer is extremly easy and minimal and can be used likewise an Iterator:
+
+     MyLexer myLexer = new MyLexer(new FileReader(file)));
+     while((token = MyLexer.next()) != MyLexer.TOKEN_EOF){
+        System.out.println(MyLexer.tokenKindToString(token));
+     }
+
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/pom.xml b/asterix-maven-plugins/lexer-generator-maven-plugin/pom.xml
new file mode 100644
index 0000000..840e624
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/pom.xml
@@ -0,0 +1,37 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>edu.uci.ics.asterix</groupId>
+  <artifactId>lexer-generator-maven-plugin</artifactId>
+  <version>0.1</version>
+  <packaging>maven-plugin</packaging>
+  <name>lexer-generator-maven-plugin</name>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.0.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+	  <fork>true</fork>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-plugin-api</artifactId>
+      <version>2.0.2</version>
+    </dependency>
+  </dependencies>    
+</project>
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGenerator.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGenerator.java
new file mode 100644
index 0000000..512f3d0
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGenerator.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.Reader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map.Entry;
+import java.util.Set;
+import org.apache.maven.plugin.logging.Log;
+
+public class LexerGenerator {
+    private LinkedHashMap<String, Token> tokens = new LinkedHashMap<String, Token>();
+    private Log logger;
+
+    public LexerGenerator() {
+    }
+
+    public LexerGenerator(Log logger) {
+        this.logger = logger;
+    }
+
+    private void log(String info) {
+        if (logger == null) {
+            System.out.println(info);
+        } else {
+            logger.info(info);
+        }
+    }
+
+    public void addToken(String rule) throws Exception {
+        Token newToken;
+        if (rule.charAt(0) == '@') {
+            newToken = new TokenAux(rule, tokens);
+        } else {
+            newToken = new Token(rule, tokens);
+        }
+        Token existingToken = tokens.get(newToken.getName());
+        if (existingToken == null) {
+            tokens.put(newToken.getName(), newToken);
+        } else {
+            existingToken.merge(newToken);
+        }
+    }
+
+    public void generateLexer(HashMap<String, String> config) throws Exception {
+        LexerNode main = this.compile();
+        config.put("TOKENS_CONSTANTS", this.tokensConstants());
+        config.put("TOKENS_IMAGES", this.tokensImages());
+        config.put("LEXER_LOGIC", main.toJava());
+        config.put("LEXER_AUXFUNCTIONS", replaceParams(this.auxiliaryFunctions(main), config));
+        String[] files = { "/Lexer.java", "/LexerException.java" };
+        String outputDir = config.get("OUTPUT_DIR");
+        (new File(outputDir)).mkdirs();
+        for (String file : files) {
+            String input = readFile(LexerGenerator.class.getResourceAsStream(file));
+            String fileOut = file.replace("Lexer", config.get("LEXER_NAME"));
+            String output = replaceParams(input, config);
+            log("Generating: " + file + "\t>>\t" + fileOut);
+            FileWriter out = new FileWriter((new File(outputDir, fileOut)).toString());
+            out.write(output);
+            out.close();
+            log(" [done]\n");
+        }
+    }
+
+    public String printParsedGrammar() {
+        StringBuilder result = new StringBuilder();
+        for (Token token : tokens.values()) {
+            result.append(token.toString()).append("\n");
+        }
+        return result.toString();
+    }
+
+    private LexerNode compile() throws Exception {
+        LexerNode main = new LexerNode();
+        for (Token token : tokens.values()) {
+            if (token instanceof TokenAux)
+                continue;
+            main.merge(token.getNode());
+        }
+        return main;
+    }
+
+    private String tokensImages() {
+        StringBuilder result = new StringBuilder();
+        Set<String> uniqueTokens = tokens.keySet();
+        for (String token : uniqueTokens) {
+            result.append(", \"<").append(token).append(">\" ");
+        }
+        return result.toString();
+    }
+
+    private String tokensConstants() {
+        StringBuilder result = new StringBuilder();
+        Set<String> uniqueTokens = tokens.keySet();
+        int i = 2;
+        for (String token : uniqueTokens) {
+            result.append(", TOKEN_").append(token).append("=").append(i).append(" ");
+            i++;
+        }
+        return result.toString();
+    }
+
+    private String auxiliaryFunctions(LexerNode main) {
+        StringBuilder result = new StringBuilder();
+        Set<String> functions = main.neededAuxFunctions();
+        for (String token : functions) {
+            result.append("private int parse_" + token
+                    + "(char currentChar) throws IOException, [LEXER_NAME]Exception{\n");
+            result.append(tokens.get(token).getNode().toJavaAuxFunction());
+            result.append("\n}\n\n");
+        }
+        return result.toString();
+    }
+
+    private static String readFile(Reader input) throws FileNotFoundException, IOException {
+        StringBuffer fileData = new StringBuffer(1000);
+        BufferedReader reader = new BufferedReader(input);
+        char[] buf = new char[1024];
+        int numRead = 0;
+        while ((numRead = reader.read(buf)) != -1) {
+            String readData = String.valueOf(buf, 0, numRead);
+            fileData.append(readData);
+            buf = new char[1024];
+        }
+        reader.close();
+        return fileData.toString();
+    }
+
+    private static String readFile(InputStream input) throws FileNotFoundException, IOException {
+        if (input == null) {
+            throw new FileNotFoundException();
+        }
+        return readFile(new InputStreamReader(input));
+    }
+
+    private static String readFile(String fileName) throws FileNotFoundException, IOException {
+        return readFile(new FileReader(fileName));
+    }
+
+    private static String replaceParams(String input, HashMap<String, String> config) {
+        for (Entry<String, String> param : config.entrySet()) {
+            String key = "\\[" + param.getKey() + "\\]";
+            String value = param.getValue();
+            input = input.replaceAll(key, value);
+        }
+        return input;
+    }
+
+    public static void main(String args[]) throws Exception {
+        if (args.length == 0 || args[0] == "--help" || args[0] == "-h") {
+            System.out.println("LexerGenerator\nusage: java LexerGenerator <configuration file>");
+            return;
+        }
+
+        LexerGenerator lexer = new LexerGenerator();
+        HashMap<String, String> config = new HashMap<String, String>();
+
+        System.out.println("Config file:\t" + args[0]);
+        String input = readFile(args[0]);
+        boolean tokens = false;
+        for (String line : input.split("\r?\n")) {
+            line = line.trim();
+            if (line.length() == 0 || line.charAt(0) == '#')
+                continue;
+            if (tokens == false && !line.equals("TOKENS:")) {
+                config.put(line.split("\\s*:\\s*")[0], line.split("\\s*:\\s*")[1]);
+            } else if (line.equals("TOKENS:")) {
+                tokens = true;
+            } else {
+                lexer.addToken(line);
+            }
+        }
+
+        String parsedGrammar = lexer.printParsedGrammar();
+        lexer.generateLexer(config);
+        System.out.println("\nGenerated grammar:");
+        System.out.println(parsedGrammar);
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGeneratorMojo.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGeneratorMojo.java
new file mode 100644
index 0000000..11ee1d5
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerGeneratorMojo.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import edu.uci.ics.asterix.lexergenerator.LexerGenerator;
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.HashMap;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+
+import java.io.File;
+
+/**
+ * @goal generate-lexer
+ * @phase generate-sources
+ * @requiresDependencyResolution compile
+ */
+public class LexerGeneratorMojo extends AbstractMojo {
+    /**
+     * parameter injected from pom.xml
+     * 
+     * @parameter
+     * @required
+     */
+    private File grammarFile;
+
+    /**
+     * parameter injected from pom.xml
+     * 
+     * @parameter
+     * @required
+     */
+    private File outputDir;
+
+    public void execute() throws MojoExecutionException {
+        LexerGenerator lexer = new LexerGenerator(getLog());
+        HashMap<String, String> config = new HashMap<String, String>();
+        getLog().info("--- Lexer Generator Maven Plugin - started with grammarFile: " + grammarFile.toString());
+        try {
+            String input = readFile(grammarFile);
+            config.put("OUTPUT_DIR", outputDir.toString());
+            boolean tokens = false;
+            for (String line : input.split("\r?\n")) {
+                line = line.trim();
+                if (line.length() == 0 || line.charAt(0) == '#')
+                    continue;
+                if (tokens == false && !line.equals("TOKENS:")) {
+                    config.put(line.split("\\s*:\\s*")[0], line.split("\\s*:\\s*")[1]);
+                } else if (line.equals("TOKENS:")) {
+                    tokens = true;
+                } else {
+                    lexer.addToken(line);
+                }
+            }
+            lexer.generateLexer(config);
+        } catch (Throwable e) {
+            throw new MojoExecutionException("Error while generating lexer", e);
+        }
+        String parsedGrammar = lexer.printParsedGrammar();
+        getLog().info("--- Generated grammar:\n" + parsedGrammar);
+    }
+
+    private String readFile(File file) throws FileNotFoundException, IOException {
+        StringBuffer fileData = new StringBuffer(1000);
+        BufferedReader reader = new BufferedReader(new FileReader(file));
+        char[] buf = new char[1024];
+        int numRead = 0;
+        while ((numRead = reader.read(buf)) != -1) {
+            String readData = String.valueOf(buf, 0, numRead);
+            fileData.append(readData);
+            buf = new char[1024];
+        }
+        reader.close();
+        return fileData.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerNode.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerNode.java
new file mode 100644
index 0000000..7b8d059
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/LexerNode.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+
+import edu.uci.ics.asterix.lexergenerator.rules.*;
+
+public class LexerNode {
+    private static String TOKEN_PREFIX = "TOKEN_";
+    private LinkedHashMap<Rule, LexerNode> actions = new LinkedHashMap<Rule, LexerNode>();
+    private String finalTokenName;
+    private Set<String> ongoingParsing = new HashSet<String>();
+
+    public LexerNode clone() {
+        LexerNode node = new LexerNode();
+        node.finalTokenName = this.finalTokenName;
+        for (Map.Entry<Rule, LexerNode> entry : this.actions.entrySet()) {
+            node.actions.put(entry.getKey().clone(), entry.getValue().clone());
+        }
+        for (String ongoing : this.ongoingParsing) {
+            node.ongoingParsing.add(ongoing);
+        }
+        return node;
+    }
+
+    public void add(Rule newRule) {
+        if (actions.get(newRule) == null) {
+            actions.put(newRule, new LexerNode());
+        }
+    }
+
+    public void append(Rule newRule) {
+        if (actions.size() == 0) {
+            add(newRule);
+        } else {
+            for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+                action.getValue().append(newRule);
+            }
+            if (actions.containsKey(new RuleEpsilon())) {
+                actions.remove(new RuleEpsilon());
+                add(newRule);
+            }
+        }
+    }
+
+    public void merge(LexerNode newNode) throws Exception {
+        for (Map.Entry<Rule, LexerNode> action : newNode.actions.entrySet()) {
+            if (this.actions.get(action.getKey()) == null) {
+                this.actions.put(action.getKey(), action.getValue());
+            } else {
+                this.actions.get(action.getKey()).merge(action.getValue());
+            }
+        }
+        if (newNode.finalTokenName != null) {
+            if (this.finalTokenName == null) {
+                this.finalTokenName = newNode.finalTokenName;
+            } else {
+                throw new Exception("Rule conflict between: " + this.finalTokenName + " and " + newNode.finalTokenName);
+            }
+        }
+        for (String ongoing : newNode.ongoingParsing) {
+            this.ongoingParsing.add(ongoing);
+        }
+    }
+
+    public void append(LexerNode node) throws Exception {
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            if (action.getKey() instanceof RuleEpsilon)
+                continue;
+            action.getValue().append(node);
+        }
+        if (actions.containsKey(new RuleEpsilon())) {
+            actions.remove(new RuleEpsilon());
+            merge(node.clone());
+        }
+        if (actions.size() == 0 || finalTokenName != null) {
+            finalTokenName = null;
+            merge(node.clone());
+        }
+    }
+
+    public void appendTokenName(String name) {
+        if (actions.size() == 0) {
+            this.finalTokenName = name;
+        } else {
+            ongoingParsing.add(TOKEN_PREFIX + name);
+            for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+                action.getValue().appendTokenName(name);
+            }
+        }
+    }
+
+    public LexerNode removeTokensName() {
+        this.finalTokenName = null;
+        this.ongoingParsing.clear();
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            action.getValue().removeTokensName();
+        }
+        return this;
+    }
+
+    public String toString() {
+        StringBuilder result = new StringBuilder();
+        if (finalTokenName != null)
+            result.append("! ");
+        if (actions.size() == 1)
+            result.append(actions.keySet().toArray()[0].toString() + actions.values().toArray()[0].toString());
+        if (actions.size() > 1) {
+            result.append(" ( ");
+            for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+                if (result.length() != 3) {
+                    result.append(" || ");
+                }
+                result.append(action.getKey().toString());
+                result.append(action.getValue().toString());
+            }
+            result.append(" ) ");
+        }
+        return result.toString();
+    }
+
+    public String toJava() {
+        StringBuffer result = new StringBuffer();
+        if (numberOfRuleChar() > 2) {
+            result.append(toJavaSingleCharRules());
+            result.append(toJavaComplexRules(false));
+        } else {
+            result.append(toJavaComplexRules(true));
+        }
+        if (this.finalTokenName != null) {
+            result.append("return " + TOKEN_PREFIX + finalTokenName + ";\n");
+        } else if (ongoingParsing != null) {
+            String ongoingParsingArgs = collectionJoin(ongoingParsing, ',');
+            result.append("return parseError(" + ongoingParsingArgs + ");\n");
+        }
+        return result.toString();
+    }
+
+    private int numberOfRuleChar() {
+        int singleCharRules = 0;
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            if (action.getKey() instanceof RuleChar)
+                singleCharRules++;
+        }
+        return singleCharRules;
+    }
+
+    private String toJavaSingleCharRules() {
+        StringBuffer result = new StringBuffer();
+        result.append("switch(currentChar){\n");
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            if (action.getKey() instanceof RuleChar) {
+                RuleChar rule = (RuleChar) action.getKey();
+                result.append("case '" + rule.expectedChar() + "':\n");
+                result.append(rule.javaAction()).append("\n");
+                result.append(action.getValue().toJava());
+            }
+        }
+        result.append("}\n");
+        return result.toString();
+    }
+
+    private String toJavaComplexRules(boolean all) {
+        StringBuffer result = new StringBuffer();
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            if (!all && action.getKey() instanceof RuleChar)
+                continue;
+            if (action.getKey() instanceof RuleEpsilon)
+                continue;
+            String act = action.getKey().javaAction();
+            if (act.length() > 0) {
+                act = "\n" + act;
+            }
+            result.append(action.getKey().javaMatch(act + "\n" + action.getValue().toJava()));
+        }
+        return result.toString();
+    }
+
+    public void expandFirstAction(LinkedHashMap<String, Token> tokens) throws Exception {
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            Rule first = action.getKey();
+            if (first instanceof RulePartial) {
+                if (tokens.get(((RulePartial) first).getPartial()) == null) {
+                    throw new Exception("Cannot find a token used as part of another definition, missing token: "
+                            + ((RulePartial) first).getPartial());
+                }
+                actions.remove(first);
+                LexerNode node = tokens.get(((RulePartial) first).getPartial()).getNode().clone();
+                merge(node);
+            }
+        }
+    }
+
+    public Set<String> neededAuxFunctions() {
+        HashSet<String> partials = new HashSet<String>();
+        for (Map.Entry<Rule, LexerNode> action : actions.entrySet()) {
+            Rule rule = action.getKey();
+            if (rule instanceof RulePartial) {
+                partials.add(((RulePartial) rule).getPartial());
+            }
+            partials.addAll(action.getValue().neededAuxFunctions());
+        }
+        return partials;
+    }
+
+    public String toJavaAuxFunction() {
+        String oldFinalTokenName = finalTokenName;
+        if (oldFinalTokenName == null)
+            finalTokenName = "AUX_NOT_FOUND";
+        String result = toJava();
+        finalTokenName = oldFinalTokenName;
+        return result;
+    }
+
+    private String collectionJoin(Collection<String> collection, char c) {
+        StringBuilder ongoingParsingArgs = new StringBuilder();
+        for (String token : collection) {
+            ongoingParsingArgs.append(token);
+            ongoingParsingArgs.append(c);
+        }
+        if (ongoingParsing.size() > 0) {
+            ongoingParsingArgs.deleteCharAt(ongoingParsingArgs.length() - 1);
+        }
+        return ongoingParsingArgs.toString();
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/NodeChainFactory.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/NodeChainFactory.java
new file mode 100644
index 0000000..941f822
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/NodeChainFactory.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import java.util.HashMap;
+
+import edu.uci.ics.asterix.lexergenerator.rulegenerators.*;
+
+public class NodeChainFactory {
+    static private HashMap<String, RuleGenerator> ruleGenerators = new HashMap<String, RuleGenerator>();
+
+    static {
+        ruleGenerators.put("char", new RuleGeneratorChar());
+        ruleGenerators.put("string", new RuleGeneratorString());
+        ruleGenerators.put("anythingUntil", new RuleGeneratorAnythingUntil());
+        ruleGenerators.put("signOrNothing", new RuleGeneratorSignOrNothing());
+        ruleGenerators.put("sign", new RuleGeneratorSign());
+        ruleGenerators.put("digitSequence", new RuleGeneratorDigitSequence());
+        ruleGenerators.put("caseInsensitiveChar", new RuleGeneratorCaseInsensitiveChar());
+        ruleGenerators.put("charOrNothing", new RuleGeneratorCharOrNothing());
+        ruleGenerators.put("token", new RuleGeneratorToken());
+        ruleGenerators.put("nothing", new RuleGeneratorNothing());
+    }
+
+    public static LexerNode create(String generator, String constructor) throws Exception {
+        constructor = constructor.replace("@", "aux_");
+        if (ruleGenerators.get(generator) == null)
+            throw new Exception("Rule Generator not found for '" + generator + "'");
+        return ruleGenerators.get(generator).generate(constructor);
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/Token.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/Token.java
new file mode 100644
index 0000000..bb122c2
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/Token.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import java.util.LinkedHashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Token {
+    private String userDescription;
+    private String name;
+    private LexerNode node;
+
+    public Token(String str, LinkedHashMap<String, Token> tokens) throws Exception {
+        userDescription = str;
+        node = new LexerNode();
+        parse(userDescription, tokens);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public LexerNode getNode() {
+        return node;
+    }
+
+    public String toString() {
+        return this.name + " => " + getNode().toString();
+    }
+
+    public void merge(Token newToken) throws Exception {
+        node.merge(newToken.getNode());
+    }
+
+    private void parse(String str, LinkedHashMap<String, Token> tokens) throws Exception {
+        Pattern p = Pattern.compile("^(@?\\w+)\\s*=\\s*(.+)");
+        Matcher m = p.matcher(str);
+        if (!m.find())
+            throw new Exception("Token definition not correct: " + str);
+        this.name = m.group(1).replaceAll("@", "aux_");
+        String[] textRules = m.group(2).split("(?<!\\\\),\\s*");
+        for (String textRule : textRules) {
+            Pattern pRule = Pattern.compile("^(\\w+)(\\((.*)\\))?");
+            Matcher mRule = pRule.matcher(textRule);
+            mRule.find();
+            String generator = mRule.group(1);
+            String constructor = mRule.group(3);
+            if (constructor == null)
+                throw new Exception("Error in rule format: " + "\n " + str + " = " + generator + " : " + constructor);
+            constructor = constructor.replace("\\", "");
+            node.append(NodeChainFactory.create(generator, constructor));
+            node.expandFirstAction(tokens);
+        }
+        node.appendTokenName(name);
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/TokenAux.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/TokenAux.java
new file mode 100644
index 0000000..a9c7ffc
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/TokenAux.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator;
+
+import java.util.LinkedHashMap;
+
+public class TokenAux extends Token {
+
+    public TokenAux(String str, LinkedHashMap<String, Token> tokens) throws Exception {
+        super(str, tokens);
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGenerator.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGenerator.java
new file mode 100644
index 0000000..3733746
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGenerator.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+
+public interface RuleGenerator {
+    public LexerNode generate(String input) throws Exception;
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorAnythingUntil.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorAnythingUntil.java
new file mode 100644
index 0000000..b14eb3e
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorAnythingUntil.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleAnythingUntil;
+
+public class RuleGeneratorAnythingUntil implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        if (input == null || input.length() != 1)
+            throw new Exception("Wrong rule format for generator anythingExcept: " + input);
+        result.append(new RuleAnythingUntil(input.charAt(0)));
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCaseInsensitiveChar.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCaseInsensitiveChar.java
new file mode 100644
index 0000000..b789f59
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCaseInsensitiveChar.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+
+public class RuleGeneratorCaseInsensitiveChar implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        if (input == null || input.length() != 1)
+            throw new Exception("Wrong rule format for generator char: " + input);
+        char cl = Character.toLowerCase(input.charAt(0));
+        char cu = Character.toUpperCase(cl);
+        result.add(new RuleChar(cl));
+        result.add(new RuleChar(cu));
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorChar.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorChar.java
new file mode 100644
index 0000000..0b830e6
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorChar.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+
+public class RuleGeneratorChar implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        if (input == null || input.length() != 1)
+            throw new Exception("Wrong rule format for generator char: " + input);
+        result.append(new RuleChar(input.charAt(0)));
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCharOrNothing.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCharOrNothing.java
new file mode 100644
index 0000000..d01ff7d
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorCharOrNothing.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleEpsilon;
+
+public class RuleGeneratorCharOrNothing implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        if (input == null || input.length() != 1)
+            throw new Exception("Wrong rule format for generator charOrNothing: " + input);
+        result.add(new RuleChar(input.charAt(0)));
+        result.add(new RuleEpsilon());
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorDigitSequence.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorDigitSequence.java
new file mode 100644
index 0000000..d067ee7
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorDigitSequence.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleDigitSequence;
+
+public class RuleGeneratorDigitSequence implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        result.append(new RuleDigitSequence());
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorNothing.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorNothing.java
new file mode 100644
index 0000000..fec06a1
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorNothing.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleEpsilon;
+
+public class RuleGeneratorNothing implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode node = new LexerNode();
+        node.add(new RuleEpsilon());
+        return node;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSign.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSign.java
new file mode 100644
index 0000000..0160f09
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSign.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+
+public class RuleGeneratorSign implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        result.add(new RuleChar('+'));
+        result.add(new RuleChar('-'));
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSignOrNothing.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSignOrNothing.java
new file mode 100644
index 0000000..7c4297d
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorSignOrNothing.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleEpsilon;
+
+public class RuleGeneratorSignOrNothing implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        LexerNode result = new LexerNode();
+        result.add(new RuleChar('+'));
+        result.add(new RuleChar('-'));
+        result.add(new RuleEpsilon());
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorString.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorString.java
new file mode 100644
index 0000000..eb0471b
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorString.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+
+public class RuleGeneratorString implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) {
+        LexerNode result = new LexerNode();
+        if (input == null)
+            return result;
+        for (int i = 0; i < input.length(); i++) {
+            result.append(new RuleChar(input.charAt(i)));
+        }
+        return result;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorToken.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorToken.java
new file mode 100644
index 0000000..b4c23d8
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rulegenerators/RuleGeneratorToken.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rulegenerators;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RulePartial;
+
+public class RuleGeneratorToken implements RuleGenerator {
+
+    @Override
+    public LexerNode generate(String input) throws Exception {
+        if (input == null || input.length() == 0)
+            throw new Exception("Wrong rule format for generator token : " + input);
+        LexerNode node = new LexerNode();
+        node.add(new RulePartial(input));
+        return node;
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/Rule.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/Rule.java
new file mode 100644
index 0000000..01cd1d5
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/Rule.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public interface Rule {
+    public int hashCode();
+
+    public boolean equals(Object o);
+
+    public String toString();
+
+    public String javaAction();
+
+    public String javaMatch(String action);
+
+    public Rule clone();
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleAnythingUntil.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleAnythingUntil.java
new file mode 100644
index 0000000..8d45835
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleAnythingUntil.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public class RuleAnythingUntil implements Rule {
+
+    private char expected;
+
+    public RuleAnythingUntil clone() {
+        return new RuleAnythingUntil(expected);
+    }
+
+    public RuleAnythingUntil(char expected) {
+        this.expected = expected;
+    }
+
+    @Override
+    public String toString() {
+        return " .* " + String.valueOf(expected);
+    }
+
+    @Override
+    public int hashCode() {
+        return 10 * (int) expected;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null)
+            return false;
+        if (o instanceof RuleAnythingUntil) {
+            if (((RuleAnythingUntil) o).expected == this.expected) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String javaAction() {
+        return "currentChar = readNextChar();";
+    }
+
+    @Override
+    public String javaMatch(String action) {
+        StringBuilder result = new StringBuilder();
+        result.append("boolean escaped = false;");
+        result.append("while (currentChar!='").append(expected).append("' || escaped)");
+        result.append("{\nif(!escaped && currentChar=='\\\\\\\\'){escaped=true;}\nelse {escaped=false;}\ncurrentChar = readNextChar();\n}");
+        result.append("\nif (currentChar=='").append(expected).append("'){");
+        result.append(action);
+        result.append("}\n");
+        return result.toString();
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleChar.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleChar.java
new file mode 100644
index 0000000..0e53374
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleChar.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public class RuleChar implements Rule {
+
+    private char expected;
+
+    public RuleChar clone() {
+        return new RuleChar(expected);
+    }
+
+    public RuleChar(char expected) {
+        this.expected = expected;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(expected);
+    }
+
+    public char expectedChar() {
+        return expected;
+    }
+
+    @Override
+    public int hashCode() {
+        return (int) expected;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null)
+            return false;
+        if (o instanceof RuleChar) {
+            if (((RuleChar) o).expected == this.expected) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String javaAction() {
+        return "currentChar = readNextChar();";
+    }
+
+    @Override
+    public String javaMatch(String action) {
+        StringBuilder result = new StringBuilder();
+        result.append("if (currentChar=='");
+        result.append(expected);
+        result.append("'){");
+        result.append(action);
+        result.append("}");
+        return result.toString();
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleDigitSequence.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleDigitSequence.java
new file mode 100644
index 0000000..13381e0
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleDigitSequence.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public class RuleDigitSequence implements Rule {
+
+    public RuleDigitSequence clone() {
+        return new RuleDigitSequence();
+    }
+
+    @Override
+    public String toString() {
+        return " [0-9]+ ";
+    }
+
+    @Override
+    public int hashCode() {
+        return 1;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null)
+            return false;
+        if (o instanceof RuleDigitSequence) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public String javaAction() {
+        return "";
+    }
+
+    @Override
+    public String javaMatch(String action) {
+        StringBuilder result = new StringBuilder();
+        result.append("if(currentChar >= '0' && currentChar<='9'){" + "\ncurrentChar = readNextChar();"
+                + "\nwhile(currentChar >= '0' && currentChar<='9'){" + "\ncurrentChar = readNextChar();" + "\n}\n");
+        result.append(action);
+        result.append("\n}");
+        return result.toString();
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleEpsilon.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleEpsilon.java
new file mode 100644
index 0000000..41b7535
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RuleEpsilon.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public class RuleEpsilon implements Rule {
+
+    public RuleEpsilon clone() {
+        return new RuleEpsilon();
+    }
+
+    @Override
+    public String toString() {
+        return "?";
+    }
+
+    @Override
+    public int hashCode() {
+        return 0;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null)
+            return false;
+        if (o instanceof RuleEpsilon) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public String javaAction() {
+        return "";
+    }
+
+    @Override
+    public String javaMatch(String action) {
+        StringBuilder result = new StringBuilder();
+        result.append("{").append(action).append("}");
+        return result.toString();
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RulePartial.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RulePartial.java
new file mode 100644
index 0000000..045df58
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/java/edu/uci/ics/asterix/lexergenerator/rules/RulePartial.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.lexergenerator.rules;
+
+public class RulePartial implements Rule {
+
+    private String partialName;
+
+    public RulePartial clone() {
+        return new RulePartial(partialName);
+    }
+
+    public RulePartial(String expected) {
+        this.partialName = expected;
+    }
+
+    public String getPartial() {
+        return this.partialName;
+    }
+
+    @Override
+    public String toString() {
+        return partialName;
+    }
+
+    @Override
+    public int hashCode() {
+        return (int) partialName.charAt(1);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null)
+            return false;
+        if (o instanceof RulePartial) {
+            if (((RulePartial) o).partialName.equals(this.partialName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String javaAction() {
+        return "";
+    }
+
+    @Override
+    public String javaMatch(String action) {
+        StringBuilder result = new StringBuilder();
+        result.append("if (parse_" + partialName + "(currentChar)==TOKEN_" + partialName + "){");
+        result.append("currentChar = buffer[bufpos];");
+        result.append(action);
+        result.append("}");
+        result.append("else { currentChar = buffer[bufpos];}");
+        return result.toString();
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/Lexer.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/Lexer.java
new file mode 100644
index 0000000..8cee79d
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/Lexer.java
@@ -0,0 +1,219 @@
+package [PACKAGE]; 
+
+import java.io.IOException;
+import [PACKAGE].[LEXER_NAME]Exception;
+
+public class [LEXER_NAME] {
+
+    public static final int
+        TOKEN_EOF = 0, TOKEN_AUX_NOT_FOUND = 1 [TOKENS_CONSTANTS];
+
+    // Human representation of tokens. Useful for debug.
+    // Is possible to convert a TOKEN_CONSTANT in its image through
+    // [LEXER_NAME].tokenKindToString(TOKEN_CONSTANT); 
+    private static final String[] tokenImage = {
+            "<EOF>", "<AUX_NOT_FOUND>" [TOKENS_IMAGES]
+          };
+    
+    private static final char EOF_CHAR = 4;
+    protected java.io.Reader inputStream;
+    protected int column;
+    protected int line;
+    protected boolean prevCharIsCR;
+    protected boolean prevCharIsLF;
+    protected char[] buffer;
+    protected int bufsize;
+    protected int bufpos;
+    protected int tokenBegin;
+    protected int endOf_USED_Buffer;
+    protected int endOf_UNUSED_Buffer;
+    protected int maxUnusedBufferSize;
+
+// ================================================================================
+//  Auxiliary functions. Can parse the tokens used in the grammar as partial/auxiliary
+// ================================================================================
+
+    [LEXER_AUXFUNCTIONS]
+
+// ================================================================================
+//  Main method. Return a TOKEN_CONSTANT
+// ================================================================================            
+            
+    public int next() throws [LEXER_NAME]Exception, IOException{
+        char currentChar = buffer[bufpos];
+        while (currentChar == ' ' || currentChar=='\t' || currentChar == '\n' || currentChar=='\r')
+            currentChar = readNextChar(); 
+        tokenBegin = bufpos;
+        if (currentChar==EOF_CHAR) return TOKEN_EOF;
+
+        [LEXER_LOGIC]
+    }
+
+// ================================================================================
+//  Public interface
+// ================================================================================
+    
+    public [LEXER_NAME](java.io.Reader stream) throws IOException{
+        reInit(stream);
+    }
+
+    public void reInit(java.io.Reader stream) throws IOException{
+        done();
+        inputStream    = stream;
+        bufsize        = 4096;
+        line           = 1;
+        column         = 0;
+        bufpos         = -1;
+        endOf_UNUSED_Buffer = bufsize;
+        endOf_USED_Buffer = 0;
+        prevCharIsCR   = false;
+        prevCharIsLF   = false;
+        buffer         = new char[bufsize];
+        tokenBegin     = -1;
+        maxUnusedBufferSize = 4096/2;
+        readNextChar();
+    }
+
+    public String getLastTokenImage() {
+        if (bufpos >= tokenBegin)
+            return new String(buffer, tokenBegin, bufpos - tokenBegin);
+          else
+            return new String(buffer, tokenBegin, bufsize - tokenBegin) +
+                                  new String(buffer, 0, bufpos);
+    }
+    
+    public static String tokenKindToString(int token) {
+        return tokenImage[token]; 
+    }
+
+    public void done(){
+        buffer = null;
+    }
+
+// ================================================================================
+//  Parse error management
+// ================================================================================    
+    
+    protected int parseError(String reason) throws [LEXER_NAME]Exception {
+        StringBuilder message = new StringBuilder();
+        message.append(reason).append("\n");
+        message.append("Line: ").append(line).append("\n");
+        message.append("Row: ").append(column).append("\n");
+        throw new [LEXER_NAME]Exception(message.toString());
+    }
+
+    protected int parseError(int ... tokens) throws [LEXER_NAME]Exception {
+        StringBuilder message = new StringBuilder();
+        message.append("Error while parsing. ");
+        message.append(" Line: ").append(line);
+        message.append(" Row: ").append(column);
+        message.append(" Expecting:");
+        for (int tokenId : tokens){
+            message.append(" ").append([LEXER_NAME].tokenKindToString(tokenId));
+        }
+        throw new [LEXER_NAME]Exception(message.toString());
+    }
+    
+    protected void updateLineColumn(char c){
+        column++;
+    
+        if (prevCharIsLF)
+        {
+            prevCharIsLF = false;
+            line += (column = 1);
+        }
+        else if (prevCharIsCR)
+        {
+            prevCharIsCR = false;
+            if (c == '\n')
+            {
+                prevCharIsLF = true;
+            }
+            else
+            {
+                line += (column = 1);
+            }
+        }
+        
+        if (c=='\r') {
+            prevCharIsCR = true;
+        } else if(c == '\n') {
+            prevCharIsLF = true;
+        }
+    }
+    
+// ================================================================================
+//  Read data, buffer management. It uses a circular (and expandable) buffer
+// ================================================================================    
+
+    protected char readNextChar() throws IOException {
+        if (++bufpos >= endOf_USED_Buffer)
+            fillBuff();
+        char c = buffer[bufpos];
+        updateLineColumn(c);
+        return c;
+    }
+
+    protected boolean fillBuff() throws IOException {
+        if (endOf_UNUSED_Buffer == endOf_USED_Buffer) // If no more unused buffer space 
+        {
+          if (endOf_UNUSED_Buffer == bufsize)         // -- If the previous unused space was
+          {                                           // -- at the end of the buffer
+            if (tokenBegin > maxUnusedBufferSize)     // -- -- If the first N bytes before
+            {                                         //       the current token are enough
+              bufpos = endOf_USED_Buffer = 0;         // -- -- -- setup buffer to use that fragment 
+              endOf_UNUSED_Buffer = tokenBegin;
+            }
+            else if (tokenBegin < 0)                  // -- -- If no token yet
+              bufpos = endOf_USED_Buffer = 0;         // -- -- -- reuse the whole buffer
+            else
+              ExpandBuff(false);                      // -- -- Otherwise expand buffer after its end
+          }
+          else if (endOf_UNUSED_Buffer > tokenBegin)  // If the endOf_UNUSED_Buffer is after the token
+            endOf_UNUSED_Buffer = bufsize;            // -- set endOf_UNUSED_Buffer to the end of the buffer
+          else if ((tokenBegin - endOf_UNUSED_Buffer) < maxUnusedBufferSize)
+          {                                           // If between endOf_UNUSED_Buffer and the token
+            ExpandBuff(true);                         // there is NOT enough space expand the buffer                          
+          }                                           // reorganizing it
+          else 
+            endOf_UNUSED_Buffer = tokenBegin;         // Otherwise there is enough space at the start
+        }                                             // so we set the buffer to use that fragment
+        int i;
+        if ((i = inputStream.read(buffer, endOf_USED_Buffer, endOf_UNUSED_Buffer - endOf_USED_Buffer)) == -1)
+        {
+            inputStream.close();
+            buffer[endOf_USED_Buffer]=(char)EOF_CHAR;
+            endOf_USED_Buffer++;
+            return false;
+        }
+            else
+                endOf_USED_Buffer += i;
+        return true;
+    }
+
+
+    protected void ExpandBuff(boolean wrapAround)
+    {
+      char[] newbuffer = new char[bufsize + maxUnusedBufferSize];
+
+      try {
+        if (wrapAround) {
+          System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+          System.arraycopy(buffer, 0, newbuffer, bufsize - tokenBegin, bufpos);
+          buffer = newbuffer;
+          endOf_USED_Buffer = (bufpos += (bufsize - tokenBegin));
+        }
+        else {
+          System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+          buffer = newbuffer;
+          endOf_USED_Buffer = (bufpos -= tokenBegin);
+        }
+      } catch (Throwable t) {
+          throw new Error(t.getMessage());
+      }
+
+      bufsize += maxUnusedBufferSize;
+      endOf_UNUSED_Buffer = bufsize;
+      tokenBegin = 0;
+    }    
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/LexerException.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/LexerException.java
new file mode 100644
index 0000000..76aa8a4
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/LexerException.java
@@ -0,0 +1,13 @@
+package [PACKAGE];
+
+public class [LEXER_NAME]Exception extends Exception {
+    
+    public [LEXER_NAME]Exception(String message) {
+        super(message);
+    }
+    
+    private static final long serialVersionUID = 1L;
+
+}
+
+
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/default.config b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/default.config
new file mode 100644
index 0000000..7efbeb8
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/main/resources/default.config
@@ -0,0 +1,16 @@
+# LEXER GENERATOR configuration file
+# ---------------------------------------
+# Place *first* the generic configuration
+# then list your grammar.
+
+PACKAGE:          com.my.lexer
+LEXER_NAME:       MyLexer
+OUTPUT_DIR:       output
+
+TOKENS:
+
+BOOLEAN_LIT = string(boolean)
+FALSE_LIT   = string(false)
+BOMB_LIT    = string(bomb)
+BONSAI_LIT  = string(bonsai)
+HELLO_LIT   = string(hello)
\ No newline at end of file
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/Fixtures.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/Fixtures.java
new file mode 100644
index 0000000..2ed2eaa
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/Fixtures.java
@@ -0,0 +1,100 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import edu.uci.ics.asterix.lexergenerator.rules.Rule;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleChar;
+
+public class Fixtures {
+    static  String token_name       = "MYTOKEN";
+    static  String token2_name       = "MYTOKEN2";
+    static  String token_return     = "return TOKEN_MYTOKEN;\n";
+    static  String token2_return     = "return TOKEN_MYTOKEN2;\n";
+    static  String token_parseerror = "return parseError(TOKEN_MYTOKEN);\n";
+    static  String token_tostring   = "! ";
+    static  String rule_action      = "myaction";
+    static  String rule_name        = "myrule";
+    static  String rule_match       = "matchCheck("+rule_name+")";
+    static  String rule2_action     = "myaction2";
+    static  String rule2_name       = "myrule2";
+    static  String rule2_match      = "matchCheck2("+rule_name+")";
+    
+    static public Rule createRule(final String name){
+        return new Rule(){
+            String rule_name        = name;
+            String rule_action      = "myaction";
+            String rule_match       = "matchCheck("+rule_name+")";
+            
+            @Override
+            public Rule clone(){
+                return Fixtures.createRule(name+"_clone");
+            }
+            
+            @Override
+            public String javaAction() {
+                return rule_action;
+            }
+
+            @Override
+            public String javaMatch(String action) {
+                return rule_match+"{"+action+"}";
+            }
+            
+            @Override
+            public String toString(){
+                return rule_name;
+            }
+            
+        }; 
+    }
+    
+    static Rule rule = new Rule(){
+        
+        public Rule clone(){
+            return null;
+        }
+        
+        @Override
+        public String javaAction() {
+            return rule_action;
+        }
+
+        @Override
+        public String javaMatch(String action) {
+            return rule_match+"{"+action+"}";
+        }
+        
+        @Override
+        public String toString(){
+            return rule_name;
+        }
+        
+    }; 
+
+    static Rule rule2 = new Rule(){
+
+        public Rule clone(){
+            return null;
+        }
+        
+        @Override
+        public String javaAction() {
+            return rule2_action;
+        }
+
+        @Override
+        public String javaMatch(String act) {
+            return rule2_match+"{"+act+"}";
+        }
+        
+        @Override
+        public String toString(){
+            return rule2_name;
+        }
+        
+    };
+    
+    static RuleChar ruleA = new RuleChar('a');
+    static RuleChar ruleB = new RuleChar('b');
+    static RuleChar ruleC = new RuleChar('c');
+    static String ruleABC_action = "currentChar = readNextChar();";
+    
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAddRuleTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAddRuleTest.java
new file mode 100644
index 0000000..7541124
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAddRuleTest.java
@@ -0,0 +1,51 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+
+public class LexerNodeAddRuleTest {
+
+    @Test
+    public void NodeRuleRuleNodeNode() {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.add(rule2);
+        node.appendTokenName(token_name);
+        assertEquals(" ( " + rule_name +token_tostring + " || " + rule2_name + token_tostring + " ) ", node.toString());
+        assertEquals(rule_match+"{"
+                        +"\n" + rule_action
+                        +"\n" +token_return
+                     +"}"
+                     +rule2_match+"{"
+                        +"\n"+rule2_action
+                        +"\n"+token_return
+                     +"}"
+                     +token_parseerror , node.toJava());
+    }
+    
+    @Test
+    public void NodeSwitchCase() {
+        LexerNode node = new LexerNode();
+        node.append(ruleA);
+        node.add(ruleB);
+        node.add(ruleC);
+        node.appendTokenName(token_name);
+        assertEquals(" ( a" + token_tostring + " || b" + token_tostring + " || c" + token_tostring + " ) ", node.toString());
+        assertEquals("switch(currentChar){\n" +
+                "case 'a':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "case 'b':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "case 'c':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "}\n"+ token_parseerror , node.toJava());
+    }
+
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendNodeTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendNodeTest.java
new file mode 100644
index 0000000..5151e77
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendNodeTest.java
@@ -0,0 +1,81 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleEpsilon;
+
+public class LexerNodeAppendNodeTest {
+
+    @Test
+    public void AppendIsMergeIfNoActions() throws Exception {
+        LexerNode node = new LexerNode();
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("rule"));
+        node2.appendTokenName(token_name);
+        node.append(node2);
+        assertEquals("rule_clone! ", node.toString());
+    }
+
+    @Test
+    public void AppendIsAppend() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(createRule("A"));
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("rule"));
+        node2.appendTokenName(token_name);
+        node.append(node2);
+        assertEquals("Arule_clone! ", node.toString());
+    }
+    
+    @Test
+    public void AppendedNodesAreCloned() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(createRule("A"));
+        node.appendTokenName(token_name);
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("B"));
+        node2.appendTokenName(token2_name);
+        node.append(node2);
+        // TODO
+        // assertEquals("A! B_clone! ", node.toString());
+        
+        LexerNode node3 = new LexerNode();
+        node3.append(createRule("C"));
+        node3.append(createRule("D"));
+        node3.appendTokenName(token2_name);
+        node.append(node3);
+        // TODO
+        // assertEquals("A! B_clone! C_cloneD_clone! ", node.toString());
+    }
+
+    @Test
+    public void EpsilonRuleDoesNotPropagateAppended() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(new RuleEpsilon());
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("A"));
+        node2.appendTokenName(token2_name);
+        node.append(node2);
+        assertEquals("A_clone! ", node.toString());
+    }
+
+    @Test
+    public void EpsilonRuleIsRemovedAndIssueMerge() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(new RuleEpsilon());
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("A"));
+        node2.appendTokenName(token2_name);
+        node.append(node2);
+        node.add(new RuleEpsilon());
+        node.append(node2);
+        // TODO
+        // assertEquals(" ( A_clone! A_clone!  || A_clone!  ) ", node.toString());
+  }
+    
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendRuleTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendRuleTest.java
new file mode 100644
index 0000000..84fd292
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAppendRuleTest.java
@@ -0,0 +1,47 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+
+public class LexerNodeAppendRuleTest {    
+    @Test
+    public void SingleNode() {
+        LexerNode node = new LexerNode();
+        node.appendTokenName(token_name);
+        assertEquals(token_tostring, node.toString());
+        assertEquals(token_return,   node.toJava());
+    }
+
+    @Test
+    public void NodeRuleNode() {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.appendTokenName(token_name);
+        assertEquals(rule_name+token_tostring, node.toString());
+        assertEquals(rule_match+"{"
+                        +"\n"+rule_action
+                        +"\n"+token_return
+                     +"}"+token_parseerror, node.toJava());
+    }
+
+    @Test
+    public void NodeRuleNodeRuleNode() {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.append(rule2);
+        node.appendTokenName(token_name);
+        assertEquals(rule_name+rule2_name+token_tostring, node.toString());
+        assertEquals(rule_match+"{"
+                        +"\n"+rule_action
+                        +"\n"+rule2_match+"{"
+                            +"\n"+rule2_action
+                            +"\n"+token_return
+                        +"}"
+                        +token_parseerror
+                     +"}"+token_parseerror, node.toJava());
+    }
+}
\ No newline at end of file
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAuxFunctionsTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAuxFunctionsTest.java
new file mode 100644
index 0000000..9f12c00
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeAuxFunctionsTest.java
@@ -0,0 +1,111 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+import static org.junit.Assert.*;
+
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.Set;
+
+import org.junit.Test;
+
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+import edu.uci.ics.asterix.lexergenerator.Token;
+import edu.uci.ics.asterix.lexergenerator.rules.RuleEpsilon;
+import edu.uci.ics.asterix.lexergenerator.rules.RulePartial;
+
+public class LexerNodeAuxFunctionsTest {
+    String expectedDifferentReturn = "return TOKEN_AUX_NOT_FOUND;\n"; 
+    
+    @Test
+    public void NodeRuleRuleNodeNode() {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.add(rule2);
+        node.appendTokenName(token_name);
+        assertEquals(" ( " + rule_name +token_tostring + " || " + rule2_name + token_tostring + " ) ", node.toString());
+        assertEquals(rule_match+"{"
+                        +"\n" + rule_action
+                        +"\n" +token_return
+                     +"}"
+                     +rule2_match+"{"
+                        +"\n"+rule2_action
+                        +"\n"+token_return
+                     +"}"
+                     +expectedDifferentReturn , node.toJavaAuxFunction());
+    }
+    
+    @Test
+    public void NodeSwitchCase() {
+        LexerNode node = new LexerNode();
+        node.append(ruleA);
+        node.add(ruleB);
+        node.add(ruleC);
+        node.appendTokenName(token_name);
+        assertEquals(" ( a" + token_tostring + " || b" + token_tostring + " || c" + token_tostring + " ) ", node.toString());
+        assertEquals("switch(currentChar){\n" +
+                "case 'a':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "case 'b':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "case 'c':" +
+                "\n" + ruleABC_action +
+                "\n" + token_return   +
+                "}\n"+ expectedDifferentReturn , node.toJavaAuxFunction());
+    }
+
+    @Test
+    public void NodeNeededAuxFunctions() {
+        LexerNode node = new LexerNode();
+        node.append(ruleA);
+        node.add(new RulePartial("token1"));
+        node.append(ruleC);
+        node.append(new RulePartial("token2"));
+        node.appendTokenName(token_name);
+        assertEquals(" ( actoken2!  || token1ctoken2!  ) ", node.toString());
+        Set<String> expectedNeededAuxFunctions = new HashSet<String>();
+        expectedNeededAuxFunctions.add("token1");
+        expectedNeededAuxFunctions.add("token2");
+        assertEquals(expectedNeededAuxFunctions, node.neededAuxFunctions());
+    }    
+
+    @Test(expected=Exception.class)
+    public void NodeExpandFirstActionError() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(ruleA);
+        node.add(new RulePartial("token1"));
+        node.append(ruleC);
+        node.add(new RuleEpsilon());
+        node.append(new RulePartial("token2"));
+        node.appendTokenName(token_name);
+        assertEquals(" ( actoken2!  || token1ctoken2!  || token2!  ) ", node.toString());
+        LinkedHashMap<String, Token> tokens = new LinkedHashMap<String, Token>();
+        try {
+            node.expandFirstAction(tokens);
+        } catch (Exception e) {
+            assertEquals("Cannot find a token used as part of another definition, missing token: token1", e.getMessage());
+            throw e;
+        }
+    } 
+
+    public void NodeExpandFirstAction() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(ruleA);
+        node.add(new RulePartial("token1"));
+        node.append(ruleC);
+        node.add(new RuleEpsilon());
+        node.append(new RulePartial("token2"));
+        node.appendTokenName(token_name);
+        assertEquals(" ( actoken2!  || token1ctoken2!  || token2!  ) ", node.toString());
+        LinkedHashMap<String, Token> tokens = new LinkedHashMap<String, Token>();
+        Token a = new Token("token1 = string(T1-blabla)", tokens);
+        Token b = new Token("token1 = string(T1-blabla)", tokens);
+        tokens.put("token1", a);
+        tokens.put("token2", b);
+        node.expandFirstAction(tokens);
+        assertEquals(" ( actoken2!  || T1-blablactoken2!  || T2-blabla!  ) ", node.toString());
+    }
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeCloneTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeCloneTest.java
new file mode 100644
index 0000000..87e3ff4
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeCloneTest.java
@@ -0,0 +1,56 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+
+public class LexerNodeCloneTest {
+    
+    @Test
+    public void Depth1() throws Exception {
+        LexerNode node = new LexerNode();
+        LexerNode newNode = node.clone();
+        assertFalse(node == newNode);
+    }
+    
+    
+    @Test
+    public void Depth2() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(createRule("my1"));
+        node.add(createRule("my2"));
+        node.add(ruleA);
+        node.appendTokenName(token_name);
+        LexerNode newNode = node.clone();
+
+        assertEquals(" ( my1!  || my2!  || a!  ) ", node.toString());
+        assertEquals(" ( my1_clone!  || my2_clone!  || a!  ) ", newNode.toString());
+    }
+
+    @Test
+    public void Depth3() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(createRule("my1"));
+        node.add(createRule("my2"));
+        node.add(ruleA);
+        node.appendTokenName(token_name);
+        LexerNode node2 = new LexerNode();
+        node2.append(createRule("my3"));
+        node2.add(createRule("my4"));
+        node2.add(ruleB);
+        node2.appendTokenName(token2_name);
+        node.append(node2);
+        LexerNode newNode = node.clone();
+        // TODO
+        // assertEquals(" ( my1!  (  || my3_clone!  || my4_clone!  || b!  ) " +
+        //		     " || my2!  (  || my3_clone!  || my4_clone!  || b!  ) " +
+        //		     " || a!  (  || my3_clone!  || my4_clone!  || b!  )  ) ", node.toString());
+        // assertEquals(" ( my1_clone!  (  || my3_clone_clone!  || my4_clone_clone!  || b!  ) " +
+        //		     " || my2_clone!  (  || my3_clone_clone!  || my4_clone_clone!  || b!  ) " +
+        //		     " || a!  (  || my3_clone_clone!  || my4_clone_clone!  || b!  )  ) ", newNode.toString());
+    }
+    
+}
diff --git a/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeMergeNodeTest.java b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeMergeNodeTest.java
new file mode 100644
index 0000000..4b22d99
--- /dev/null
+++ b/asterix-maven-plugins/lexer-generator-maven-plugin/src/test/java/edu/uci/ics/asterix/lexergenerator/LexerNodeMergeNodeTest.java
@@ -0,0 +1,83 @@
+package edu.uci.ics.asterix.lexergenerator;
+
+import static edu.uci.ics.asterix.lexergenerator.Fixtures.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+import edu.uci.ics.asterix.lexergenerator.LexerNode;
+
+public class LexerNodeMergeNodeTest {
+
+    @Test
+    public void MergeIsAdd() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        LexerNode node2 = new LexerNode();
+        node2.append(rule2);
+        node2.append(rule);
+        node2.merge(node);
+        node2.appendTokenName(token_name);
+        
+        LexerNode expected = new LexerNode();
+        expected.append(rule2);
+        expected.append(rule);
+        expected.add(rule);
+        expected.appendTokenName(token_name);
+        
+        assertEquals(expected.toString(), node2.toString());
+        assertEquals(expected.toJava(), node2.toJava());
+    }
+
+    @Test
+    public void MergeTwoToken() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.appendTokenName(token_name);
+        LexerNode node2 = new LexerNode();
+        node2.append(rule2);
+        node2.appendTokenName(token2_name);
+        node.merge(node2);
+
+        assertEquals(" ( "+rule_name+token_tostring+" || "+rule2_name+token_tostring+" ) ", node.toString());
+        assertEquals(rule_match + "{"
+        		+ "\n" + rule_action
+        		+ "\n" + token_return
+        +"}"+rule2_match+"{" 
+        + "\n" + rule2_action
+        + "\n" + token2_return
+        +"}return parseError(TOKEN_MYTOKEN,TOKEN_MYTOKEN2);\n"
+, node.toJava());
+    }
+
+    @Test(expected=Exception.class)
+    public void MergeConflict() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.appendTokenName(token_name);
+        LexerNode node2 = new LexerNode();
+        node2.append(rule);
+        node2.appendTokenName(token2_name);
+        try {
+            node.merge(node2);
+        } catch (Exception e) {
+            assertEquals("Rule conflict between: "+token_name +" and "+token2_name, e.getMessage());
+            throw e;
+        }
+    }
+
+    @Test
+    public void MergeWithoutConflictWithRemoveTokensName() throws Exception {
+        LexerNode node = new LexerNode();
+        node.append(rule);
+        node.append(rule);
+        node.appendTokenName(token_name);
+        LexerNode node2 = new LexerNode();
+        node2.append(rule);
+        node2.append(rule);
+        node2.appendTokenName(token2_name);
+        node2.removeTokensName();
+        node.merge(node2);
+        assertEquals(rule_name+rule_name+token_tostring, node.toString());
+    }
+}
diff --git a/asterix-maven-plugins/pom.xml b/asterix-maven-plugins/pom.xml
new file mode 100644
index 0000000..0677ffb
--- /dev/null
+++ b/asterix-maven-plugins/pom.xml
@@ -0,0 +1,21 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>edu.uci.ics.asterix</groupId>
+  <artifactId>asterix-maven-plugins</artifactId>
+  <version>0.1</version>
+  <packaging>pom</packaging>
+
+  <dependencies>
+  	<dependency>
+  		<groupId>org.apache.maven</groupId>
+  		<artifactId>maven-plugin-api</artifactId>
+  		<version>2.2.1</version>
+  		<type>jar</type>
+  		<scope>compile</scope>
+  	</dependency>
+  </dependencies>
+
+  <modules>
+    <module>lexer-generator-maven-plugin</module>
+  </modules>
+</project>
diff --git a/asterix-metadata/pom.xml b/asterix-metadata/pom.xml
index a93fe2e..14959db 100644
--- a/asterix-metadata/pom.xml
+++ b/asterix-metadata/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-metadata</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 		</plugins>
@@ -43,41 +43,30 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-invertedindex</artifactId>
-			<version>0.2.0</version>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-core</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-rtree</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-lsm-btree</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
 		</dependency>
 		<dependency>
-			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-hyracks-glue</artifactId>
-			<version>0.0.4-SNAPSHOT</version>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-core</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
-                <dependency>
-                        <groupId>org.apache.hadoop</groupId>
-                        <artifactId>hadoop-core</artifactId>
-                        <version>0.20.2</version>
-                        <type>jar</type>
-                        <scope>compile</scope>
-                </dependency>
 	</dependencies>
 </project>
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
index 65a6d8e..0382315 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
@@ -20,13 +20,15 @@
 import java.util.List;
 import java.util.Map;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 
 /**
  * Caches metadata entities such that the MetadataManager does not have to
@@ -35,267 +37,368 @@
  * simply ignored, i.e., updates are not not applied to the cache.
  */
 public class MetadataCache {
-	// Key is dataverse name.
-	protected final Map<String, Dataverse> dataverses = new HashMap<String, Dataverse>();
-	// Key is dataverse name. Key of value map is dataset name.
-	protected final Map<String, Map<String, Dataset>> datasets = new HashMap<String, Map<String, Dataset>>();
-	// Key is dataverse name. Key of value map is datatype name.
-	protected final Map<String, Map<String, Datatype>> datatypes = new HashMap<String, Map<String, Datatype>>();
-	// Key is dataverse name.
-	protected final Map<String, NodeGroup> nodeGroups = new HashMap<String, NodeGroup>();
-	// Key is function Identifier . Key of value map is function name.
-	protected final Map<FunctionIdentifier, Function> functions = new HashMap<FunctionIdentifier, Function>();
+    // Key is dataverse name.
+    protected final Map<String, Dataverse> dataverses = new HashMap<String, Dataverse>();
+    // Key is dataverse name. Key of value map is dataset name.
+    protected final Map<String, Map<String, Dataset>> datasets = new HashMap<String, Map<String, Dataset>>();
+    // Key is dataverse name. Key of value map is dataset name. Key of value map of value map is index name.
+    protected final Map<String, Map<String, Map<String, Index>>> indexes = new HashMap<String, Map<String, Map<String, Index>>>();
+    // Key is dataverse name. Key of value map is datatype name.
+    protected final Map<String, Map<String, Datatype>> datatypes = new HashMap<String, Map<String, Datatype>>();
+    // Key is dataverse name.
+    protected final Map<String, NodeGroup> nodeGroups = new HashMap<String, NodeGroup>();
+    // Key is function Identifier . Key of value map is function name.
+    protected final Map<FunctionSignature, Function> functions = new HashMap<FunctionSignature, Function>();
+    // Key is adapter dataverse. Key of value map is the adapter name  
+    protected final Map<String, Map<String, DatasourceAdapter>> adapters = new HashMap<String, Map<String, DatasourceAdapter>>();
 
-	// Atomically executes all metadata operations in ctx's log.
-	public void commit(MetadataTransactionContext ctx) {
-		// Forward roll the operations written in ctx's log.
-		int logIx = 0;
-		ArrayList<MetadataLogicalOperation> opLog = ctx.getOpLog();
-		try {
-			for (logIx = 0; logIx < opLog.size(); logIx++) {
-				doOperation(opLog.get(logIx));
-			}
-		} catch (Exception e) {
-			// Undo operations.
-			try {
-				for (int i = logIx - 1; i >= 0; i--) {
-					undoOperation(opLog.get(i));
-				}
-			} catch (Exception e2) {
-				// We encountered an error in undo. This case should never
-				// happen. Our only remedy to ensure cache consistency
-				// is to clear everything.
-				clear();
-			}
-		} finally {
-			ctx.clear();
-		}
-	}
+    // Atomically executes all metadata operations in ctx's log.
+    public void commit(MetadataTransactionContext ctx) {
+        // Forward roll the operations written in ctx's log.
+        int logIx = 0;
+        ArrayList<MetadataLogicalOperation> opLog = ctx.getOpLog();
+        try {
+            for (logIx = 0; logIx < opLog.size(); logIx++) {
+                doOperation(opLog.get(logIx));
+            }
+        } catch (Exception e) {
+            // Undo operations.
+            try {
+                for (int i = logIx - 1; i >= 0; i--) {
+                    undoOperation(opLog.get(i));
+                }
+            } catch (Exception e2) {
+                // We encountered an error in undo. This case should never
+                // happen. Our only remedy to ensure cache consistency
+                // is to clear everything.
+                clear();
+            }
+        } finally {
+            ctx.clear();
+        }
+    }
 
-	public void clear() {
-		synchronized (dataverses) {
-			synchronized (nodeGroups) {
-				synchronized (datasets) {
-					synchronized (datatypes) {
-						synchronized (functions) {
-							dataverses.clear();
-							nodeGroups.clear();
-							datasets.clear();
-							datatypes.clear();
-						}
-					}
-				}
-			}
-		}
-	}
+    public void clear() {
+        synchronized (dataverses) {
+            synchronized (nodeGroups) {
+                synchronized (datasets) {
+                    synchronized (indexes) {
+                        synchronized (datatypes) {
+                            synchronized (functions) {
+                                synchronized (adapters) {
+                                    dataverses.clear();
+                                    nodeGroups.clear();
+                                    datasets.clear();
+                                    indexes.clear();
+                                    datatypes.clear();
+                                    functions.clear();
+                                    adapters.clear();
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
 
-	public Object addDataverseIfNotExists(Dataverse dataverse) {
-		synchronized (dataverses) {
-			synchronized (datasets) {
-				synchronized (datatypes) {
-					synchronized (functions) {
-						if (!dataverses.containsKey(dataverse)) {
-							datasets.put(dataverse.getDataverseName(),
-									new HashMap<String, Dataset>());
-							datatypes.put(dataverse.getDataverseName(),
-									new HashMap<String, Datatype>());
-							return dataverses.put(dataverse.getDataverseName(),
-									dataverse);
-						}
-					}
-					return null;
-				}
-			}
-		}
-	}
+    public Object addDataverseIfNotExists(Dataverse dataverse) {
+        synchronized (dataverses) {
+            synchronized (datasets) {
+                synchronized (datatypes) {
+                    if (!dataverses.containsKey(dataverse)) {
+                        datasets.put(dataverse.getDataverseName(), new HashMap<String, Dataset>());
+                        datatypes.put(dataverse.getDataverseName(), new HashMap<String, Datatype>());
+                        adapters.put(dataverse.getDataverseName(), new HashMap<String, DatasourceAdapter>());
+                        return dataverses.put(dataverse.getDataverseName(), dataverse);
+                    }
+                    return null;
+                }
+            }
+        }
+    }
 
-	public Object addDatasetIfNotExists(Dataset dataset) {
-		synchronized (datasets) {
-			Map<String, Dataset> m = datasets.get(dataset.getDataverseName());
-			if (m == null) {
-				m = new HashMap<String, Dataset>();
-				datasets.put(dataset.getDataverseName(), m);
-			}
-			if (!m.containsKey(dataset.getDatasetName())) {
-				return m.put(dataset.getDatasetName(), dataset);
-			}
-			return null;
-		}
-	}
+    public Object addDatasetIfNotExists(Dataset dataset) {
+        synchronized (datasets) {
+            Map<String, Dataset> m = datasets.get(dataset.getDataverseName());
+            if (m == null) {
+                m = new HashMap<String, Dataset>();
+                datasets.put(dataset.getDataverseName(), m);
+            }
+            if (!m.containsKey(dataset.getDatasetName())) {
+                return m.put(dataset.getDatasetName(), dataset);
+            }
+            return null;
+        }
+    }
 
-	public Object addDatatypeIfNotExists(Datatype datatype) {
-		synchronized (datatypes) {
-			Map<String, Datatype> m = datatypes
-					.get(datatype.getDataverseName());
-			if (m == null) {
-				m = new HashMap<String, Datatype>();
-				datatypes.put(datatype.getDataverseName(), m);
-			}
-			if (!m.containsKey(datatype.getDatatypeName())) {
-				return m.put(datatype.getDatatypeName(), datatype);
-			}
-			return null;
-		}
-	}
+    public Object addIndexIfNotExists(Index index) {
+        synchronized (indexes) {
+            Map<String, Map<String, Index>> datasetMap = indexes.get(index.getDataverseName());
+            if (datasetMap == null) {
+                datasetMap = new HashMap<String, Map<String, Index>>();
+                indexes.put(index.getDataverseName(), datasetMap);
+            }
+            Map<String, Index> indexMap = datasetMap.get(index.getDatasetName());
+            if (indexMap == null) {
+                indexMap = new HashMap<String, Index>();
+                datasetMap.put(index.getDatasetName(), indexMap);
+            }
+            if (!indexMap.containsKey(index.getIndexName())) {
+                return indexMap.put(index.getIndexName(), index);
+            }
+            return null;
+        }
+    }
 
-	public Object addNodeGroupIfNotExists(NodeGroup nodeGroup) {
-		synchronized (nodeGroups) {
-			if (!nodeGroups.containsKey(nodeGroup.getNodeGroupName())) {
-				return nodeGroups.put(nodeGroup.getNodeGroupName(), nodeGroup);
-			}
-			return null;
-		}
-	}
+    public Object addDatatypeIfNotExists(Datatype datatype) {
+        synchronized (datatypes) {
+            Map<String, Datatype> m = datatypes.get(datatype.getDataverseName());
+            if (m == null) {
+                m = new HashMap<String, Datatype>();
+                datatypes.put(datatype.getDataverseName(), m);
+            }
+            if (!m.containsKey(datatype.getDatatypeName())) {
+                return m.put(datatype.getDatatypeName(), datatype);
+            }
+            return null;
+        }
+    }
 
-	public Object dropDataverse(Dataverse dataverse) {
-		synchronized (dataverses) {
-			synchronized (datasets) {
-				synchronized (datatypes) {
-					synchronized (functions) {
-						datasets.remove(dataverse.getDataverseName());
-						datatypes.remove(dataverse.getDataverseName());
-						return dataverses.remove(dataverse.getDataverseName());
-					}
-				}
-			}
-		}
-	}
+    public Object addNodeGroupIfNotExists(NodeGroup nodeGroup) {
+        synchronized (nodeGroups) {
+            if (!nodeGroups.containsKey(nodeGroup.getNodeGroupName())) {
+                return nodeGroups.put(nodeGroup.getNodeGroupName(), nodeGroup);
+            }
+            return null;
+        }
+    }
 
-	public Object dropDataset(Dataset dataset) {
-		synchronized (datasets) {
-			Map<String, Dataset> m = datasets.get(dataset.getDataverseName());
-			if (m == null) {
-				return null;
-			}
-			return m.remove(dataset.getDatasetName());
-		}
-	}
+    public Object dropDataverse(Dataverse dataverse) {
+        synchronized (dataverses) {
+            synchronized (datasets) {
+                synchronized (indexes) {
+                    synchronized (datatypes) {
+                        synchronized (functions) {
+                            datasets.remove(dataverse.getDataverseName());
+                            indexes.remove(dataverse.getDataverseName());
+                            datatypes.remove(dataverse.getDataverseName());
+                            adapters.remove(dataverse.getDataverseName());
+                            List<FunctionSignature> markedFunctionsForRemoval = new ArrayList<FunctionSignature>();
+                            for (FunctionSignature signature : functions.keySet()) {
+                                if (signature.getNamespace().equals(dataverse.getDataverseName())) {
+                                    markedFunctionsForRemoval.add(signature);
+                                }
+                            }
+                            for (FunctionSignature signature : markedFunctionsForRemoval) {
+                                functions.remove(signature);
+                            }
+                            return dataverses.remove(dataverse.getDataverseName());
+                        }
+                    }
+                }
+            }
+        }
+    }
 
-	public Object dropDatatype(Datatype datatype) {
-		synchronized (datatypes) {
-			Map<String, Datatype> m = datatypes
-					.get(datatype.getDataverseName());
-			if (m == null) {
-				return null;
-			}
-			return m.remove(datatype.getDatatypeName());
-		}
-	}
+    public Object dropDataset(Dataset dataset) {
+        synchronized (datasets) {
+            synchronized (indexes) {
 
-	public Object dropNodeGroup(NodeGroup nodeGroup) {
-		synchronized (nodeGroups) {
-			return nodeGroups.remove(nodeGroup.getNodeGroupName());
-		}
-	}
+                //remove the indexes of the dataset from indexes' cache
+                Map<String, Map<String, Index>> datasetMap = indexes.get(dataset.getDataverseName());
+                if (datasetMap != null) {
+                    datasetMap.remove(dataset.getDatasetName());
+                }
 
-	public Dataverse getDataverse(String dataverseName) {
-		synchronized (dataverses) {
-			return dataverses.get(dataverseName);
-		}
-	}
+                //remove the dataset from datasets' cache
+                Map<String, Dataset> m = datasets.get(dataset.getDataverseName());
+                if (m == null) {
+                    return null;
+                }
+                return m.remove(dataset.getDatasetName());
+            }
+        }
+    }
+    
+    public Object dropIndex(Index index) {
+        synchronized (indexes) {
+            Map<String, Map<String, Index>> datasetMap = indexes.get(index.getDataverseName());
+            if (datasetMap == null) {
+                return null;
+            }
+            
+            Map<String, Index> indexMap = datasetMap.get(index.getDatasetName());
+            if (indexMap == null) {
+                return null;
+            }
+            
+            return indexMap.remove(index.getIndexName());
+        }
+    }
 
-	public Dataset getDataset(String dataverseName, String datasetName) {
-		synchronized (datasets) {
-			Map<String, Dataset> m = datasets.get(dataverseName);
-			if (m == null) {
-				return null;
-			}
-			return m.get(datasetName);
-		}
-	}
+    public Object dropDatatype(Datatype datatype) {
+        synchronized (datatypes) {
+            Map<String, Datatype> m = datatypes.get(datatype.getDataverseName());
+            if (m == null) {
+                return null;
+            }
+            return m.remove(datatype.getDatatypeName());
+        }
+    }
 
-	public Datatype getDatatype(String dataverseName, String datatypeName) {
-		synchronized (datatypes) {
-			Map<String, Datatype> m = datatypes.get(dataverseName);
-			if (m == null) {
-				return null;
-			}
-			return m.get(datatypeName);
-		}
-	}
+    public Object dropNodeGroup(NodeGroup nodeGroup) {
+        synchronized (nodeGroups) {
+            return nodeGroups.remove(nodeGroup.getNodeGroupName());
+        }
+    }
 
-	public NodeGroup getNodeGroup(String nodeGroupName) {
-		synchronized (nodeGroups) {
-			return nodeGroups.get(nodeGroupName);
-		}
-	}
+    public Dataverse getDataverse(String dataverseName) {
+        synchronized (dataverses) {
+            return dataverses.get(dataverseName);
+        }
+    }
 
-	public Function getFunction(String dataverse, String functionName, int arity) {
-		synchronized (functions) {
-			return functions.get(new FunctionIdentifier(dataverse,
-					functionName, arity, false));
-		}
-	}
+    public Dataset getDataset(String dataverseName, String datasetName) {
+        synchronized (datasets) {
+            Map<String, Dataset> m = datasets.get(dataverseName);
+            if (m == null) {
+                return null;
+            }
+            return m.get(datasetName);
+        }
+    }
+    
+    public Index getIndex(String dataverseName, String datasetName, String indexName) {
+        synchronized (indexes) {
+            Map<String, Map<String, Index>> datasetMap = indexes.get(dataverseName);
+            if (datasetMap == null) {
+                return null;
+            }
+            Map<String, Index> indexMap = datasetMap.get(datasetName);
+            if (indexMap == null) {
+                return null;
+            }
+            return indexMap.get(indexName);
+        }
+    }
 
-	public List<Dataset> getDataverseDatasets(String dataverseName) {
-		List<Dataset> retDatasets = new ArrayList<Dataset>();
-		synchronized (datasets) {
-			Map<String, Dataset> m = datasets.get(dataverseName);
-			if (m == null) {
-				return retDatasets;
-			}
-			for (Map.Entry<String, Dataset> entry : m.entrySet()) {
-				retDatasets.add(entry.getValue());
-			}
-			return retDatasets;
-		}
-	}
+    public Datatype getDatatype(String dataverseName, String datatypeName) {
+        synchronized (datatypes) {
+            Map<String, Datatype> m = datatypes.get(dataverseName);
+            if (m == null) {
+                return null;
+            }
+            return m.get(datatypeName);
+        }
+    }
 
-	/**
-	 * Represents a logical operation against the metadata.
-	 */
-	protected class MetadataLogicalOperation {
-		// Entity to be added/dropped.
-		public final IMetadataEntity entity;
-		// True for add, false for drop.
-		public final boolean isAdd;
+    public NodeGroup getNodeGroup(String nodeGroupName) {
+        synchronized (nodeGroups) {
+            return nodeGroups.get(nodeGroupName);
+        }
+    }
 
-		public MetadataLogicalOperation(IMetadataEntity entity, boolean isAdd) {
-			this.entity = entity;
-			this.isAdd = isAdd;
-		}
-	};
+    public Function getFunction(FunctionSignature functionSignature) {
+        synchronized (functions) {
+            return functions.get(functionSignature);
+        }
+    }
 
-	protected void doOperation(MetadataLogicalOperation op) {
-		if (op.isAdd) {
-			op.entity.addToCache(this);
-		} else {
-			op.entity.dropFromCache(this);
-		}
-	}
+    public List<Dataset> getDataverseDatasets(String dataverseName) {
+        List<Dataset> retDatasets = new ArrayList<Dataset>();
+        synchronized (datasets) {
+            Map<String, Dataset> m = datasets.get(dataverseName);
+            if (m == null) {
+                return retDatasets;
+            }
+            for (Map.Entry<String, Dataset> entry : m.entrySet()) {
+                retDatasets.add(entry.getValue());
+            }
+            return retDatasets;
+        }
+    }
 
-	protected void undoOperation(MetadataLogicalOperation op) {
-		if (!op.isAdd) {
-			op.entity.addToCache(this);
-		} else {
-			op.entity.dropFromCache(this);
-		}
-	}
+    /**
+     * Represents a logical operation against the metadata.
+     */
+    protected class MetadataLogicalOperation {
+        // Entity to be added/dropped.
+        public final IMetadataEntity entity;
+        // True for add, false for drop.
+        public final boolean isAdd;
 
-	public Object addFunctionIfNotExists(Function function) {
-		synchronized (functions) {
-			FunctionIdentifier fId = new FunctionIdentifier(
-					function.getDataverseName(), function.getFunctionName(),
-					function.getFunctionArity(), false);
+        public MetadataLogicalOperation(IMetadataEntity entity, boolean isAdd) {
+            this.entity = entity;
+            this.isAdd = isAdd;
+        }
+    };
 
-			Function fun = functions.get(fId);
-			if (fun == null) {
-				return functions.put(fId, function);
-			}
-			return null;
-		}
-	}
+    protected void doOperation(MetadataLogicalOperation op) {
+        if (op.isAdd) {
+            op.entity.addToCache(this);
+        } else {
+            op.entity.dropFromCache(this);
+        }
+    }
 
-	public Object dropFunction(Function function) {
-		synchronized (functions) {
-			FunctionIdentifier fId = new FunctionIdentifier(
-					function.getDataverseName(), function.getFunctionName(),
-					function.getFunctionArity(), false);
-			Function fun = functions.get(fId);
-			if (fun == null) {
-				return null;
-			}
-			return functions.remove(fId);
-		}
-	}
+    protected void undoOperation(MetadataLogicalOperation op) {
+        if (!op.isAdd) {
+            op.entity.addToCache(this);
+        } else {
+            op.entity.dropFromCache(this);
+        }
+    }
+
+    public Object addFunctionIfNotExists(Function function) {
+        synchronized (functions) {
+            FunctionSignature signature = new FunctionSignature(function.getDataverseName(), function.getName(),
+                    function.getArity());
+            Function fun = functions.get(signature);
+            if (fun == null) {
+                return functions.put(signature, function);
+            }
+            return null;
+        }
+    }
+
+    public Object dropFunction(Function function) {
+        synchronized (functions) {
+            FunctionSignature signature = new FunctionSignature(function.getDataverseName(), function.getName(),
+                    function.getArity());
+            Function fun = functions.get(signature);
+            if (fun == null) {
+                return null;
+            }
+            return functions.remove(signature);
+        }
+    }
+
+    public Object addAdapterIfNotExists(DatasourceAdapter adapter) {
+        synchronized (adapters) {
+            DatasourceAdapter adapterObject = adapters.get(adapter.getAdapterIdentifier().getNamespace()).get(
+                    adapter.getAdapterIdentifier().getAdapterName());
+            if (adapterObject != null) {
+                Map<String, DatasourceAdapter> adaptersInDataverse = adapters.get(adapter.getAdapterIdentifier()
+                        .getNamespace());
+                if (adaptersInDataverse == null) {
+                    adaptersInDataverse = new HashMap<String, DatasourceAdapter>();
+                    adapters.put(adapter.getAdapterIdentifier().getNamespace(), adaptersInDataverse);
+                }
+                return adaptersInDataverse.put(adapter.getAdapterIdentifier().getAdapterName(), adapter);
+            }
+            return null;
+        }
+    }
+
+    public Object dropAdapter(DatasourceAdapter adapter) {
+        synchronized (adapters) {
+            Map<String, DatasourceAdapter> adaptersInDataverse = adapters.get(adapter.getAdapterIdentifier()
+                    .getNamespace());
+            if (adaptersInDataverse != null) {
+                return adaptersInDataverse.remove(adapter.getAdapterIdentifier().getAdapterName());
+            }
+            return null;
+        }
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
index 850eceb..ad106fe 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
@@ -17,12 +17,16 @@
 
 import java.rmi.RemoteException;
 import java.util.List;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
 
-import edu.uci.ics.asterix.metadata.MetadataCache.MetadataLogicalOperation;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.api.IMetadataManager;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
@@ -30,7 +34,8 @@
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 
 /**
  * Provides access to Asterix metadata via remote methods to the metadata node.
@@ -76,10 +81,10 @@
 public class MetadataManager implements IMetadataManager {
     // Set in init().
     public static MetadataManager INSTANCE;
-
     private final MetadataCache cache = new MetadataCache();
     private IAsterixStateProxy proxy;
     private IMetadataNode metadataNode;
+    private final ReadWriteLock metadataLatch;
 
     public MetadataManager(IAsterixStateProxy proxy) {
         if (proxy == null) {
@@ -87,6 +92,7 @@
         }
         this.proxy = proxy;
         this.metadataNode = null;
+        this.metadataLatch = new ReentrantReadWriteLock(true);
     }
 
     @Override
@@ -106,36 +112,36 @@
 
     @Override
     public MetadataTransactionContext beginTransaction() throws RemoteException, ACIDException {
-        long txnId = TransactionIDFactory.generateTransactionId();
-        metadataNode.beginTransaction(txnId);
-        return new MetadataTransactionContext(txnId);
+        JobId jobId = JobIdFactory.generateJobId();
+        metadataNode.beginTransaction(jobId);
+        return new MetadataTransactionContext(jobId);
     }
 
     @Override
     public void commitTransaction(MetadataTransactionContext ctx) throws RemoteException, ACIDException {
-        metadataNode.commitTransaction(ctx.getTxnId());
+        metadataNode.commitTransaction(ctx.getJobId());
         cache.commit(ctx);
     }
 
     @Override
     public void abortTransaction(MetadataTransactionContext ctx) throws RemoteException, ACIDException {
-        metadataNode.abortTransaction(ctx.getTxnId());
+        metadataNode.abortTransaction(ctx.getJobId());
     }
 
     @Override
-    public void lock(MetadataTransactionContext ctx, int lockMode) throws RemoteException, ACIDException {
-        metadataNode.lock(ctx.getTxnId(), lockMode);
+    public void lock(MetadataTransactionContext ctx, byte lockMode) throws RemoteException, ACIDException {
+        metadataNode.lock(ctx.getJobId(), lockMode);
     }
 
     @Override
     public void unlock(MetadataTransactionContext ctx) throws RemoteException, ACIDException {
-        metadataNode.unlock(ctx.getTxnId());
+        metadataNode.unlock(ctx.getJobId());
     }
 
     @Override
     public void addDataverse(MetadataTransactionContext ctx, Dataverse dataverse) throws MetadataException {
         try {
-            metadataNode.addDataverse(ctx.getTxnId(), dataverse);
+            metadataNode.addDataverse(ctx.getJobId(), dataverse);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -145,7 +151,7 @@
     @Override
     public void dropDataverse(MetadataTransactionContext ctx, String dataverseName) throws MetadataException {
         try {
-            metadataNode.dropDataverse(ctx.getTxnId(), dataverseName);
+            metadataNode.dropDataverse(ctx.getJobId(), dataverseName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -153,6 +159,15 @@
     }
 
     @Override
+    public List<Dataverse> getDataverses(MetadataTransactionContext ctx) throws MetadataException {
+        try {
+            return metadataNode.getDataverses(ctx.getJobId());
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
     public Dataverse getDataverse(MetadataTransactionContext ctx, String dataverseName) throws MetadataException {
         // First look in the context to see if this transaction created the
         // requested dataverse itself (but the dataverse is still uncommitted).
@@ -173,7 +188,7 @@
             return dataverse;
         }
         try {
-            dataverse = metadataNode.getDataverse(ctx.getTxnId(), dataverseName);
+            dataverse = metadataNode.getDataverse(ctx.getJobId(), dataverseName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -192,7 +207,7 @@
         try {
             // Assuming that the transaction can read its own writes on the
             // metadata node.
-            dataverseDatasets = metadataNode.getDataverseDatasets(ctx.getTxnId(), dataverseName);
+            dataverseDatasets = metadataNode.getDataverseDatasets(ctx.getJobId(), dataverseName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -203,11 +218,14 @@
 
     @Override
     public void addDataset(MetadataTransactionContext ctx, Dataset dataset) throws MetadataException {
+        // add dataset into metadataNode 
         try {
-            metadataNode.addDataset(ctx.getTxnId(), dataset);
+            metadataNode.addDataset(ctx.getJobId(), dataset);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
+
+        // reflect the dataset into the cache
         ctx.addDataset(dataset);
     }
 
@@ -215,7 +233,7 @@
     public void dropDataset(MetadataTransactionContext ctx, String dataverseName, String datasetName)
             throws MetadataException {
         try {
-            metadataNode.dropDataset(ctx.getTxnId(), dataverseName, datasetName);
+            metadataNode.dropDataset(ctx.getJobId(), dataverseName, datasetName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -225,6 +243,7 @@
     @Override
     public Dataset getDataset(MetadataTransactionContext ctx, String dataverseName, String datasetName)
             throws MetadataException {
+
         // First look in the context to see if this transaction created the
         // requested dataset itself (but the dataset is still uncommitted).
         Dataset dataset = ctx.getDataset(dataverseName, datasetName);
@@ -238,18 +257,14 @@
             // in the cache.
             return null;
         }
-        if (ctx.getDataverse(dataverseName) != null) {
-            // This transaction has dropped and subsequently created the same
-            // dataverse.
-            return null;
-        }
+
         dataset = cache.getDataset(dataverseName, datasetName);
         if (dataset != null) {
             // Dataset is already in the cache, don't add it again.
             return dataset;
         }
         try {
-            dataset = metadataNode.getDataset(ctx.getTxnId(), dataverseName, datasetName);
+            dataset = metadataNode.getDataset(ctx.getJobId(), dataverseName, datasetName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -266,7 +281,7 @@
             throws MetadataException {
         List<Index> datsetIndexes;
         try {
-            datsetIndexes = metadataNode.getDatasetIndexes(ctx.getTxnId(), dataverseName, datasetName);
+            datsetIndexes = metadataNode.getDatasetIndexes(ctx.getJobId(), dataverseName, datasetName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -276,7 +291,7 @@
     @Override
     public void addDatatype(MetadataTransactionContext ctx, Datatype datatype) throws MetadataException {
         try {
-            metadataNode.addDatatype(ctx.getTxnId(), datatype);
+            metadataNode.addDatatype(ctx.getJobId(), datatype);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -287,7 +302,7 @@
     public void dropDatatype(MetadataTransactionContext ctx, String dataverseName, String datatypeName)
             throws MetadataException {
         try {
-            metadataNode.dropDatatype(ctx.getTxnId(), dataverseName, datatypeName);
+            metadataNode.dropDatatype(ctx.getJobId(), dataverseName, datatypeName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -310,18 +325,14 @@
             // in the cache.
             return null;
         }
-        if (ctx.getDataverse(dataverseName) != null) {
-            // This transaction has dropped and subsequently created the same
-            // dataverse.
-            return null;
-        }
+
         datatype = cache.getDatatype(dataverseName, datatypeName);
         if (datatype != null) {
             // Datatype is already in the cache, don't add it again.
             return datatype;
         }
         try {
-            datatype = metadataNode.getDatatype(ctx.getTxnId(), dataverseName, datatypeName);
+            datatype = metadataNode.getDatatype(ctx.getJobId(), dataverseName, datatypeName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -336,36 +347,76 @@
     @Override
     public void addIndex(MetadataTransactionContext ctx, Index index) throws MetadataException {
         try {
-            metadataNode.addIndex(ctx.getTxnId(), index);
+            metadataNode.addIndex(ctx.getJobId(), index);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
+        ctx.addIndex(index);
+    }
+
+    @Override
+    public void addAdapter(MetadataTransactionContext mdTxnCtx, DatasourceAdapter adapter) throws MetadataException {
+        try {
+            metadataNode.addAdapter(mdTxnCtx.getJobId(), adapter);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        mdTxnCtx.addAdapter(adapter);
+
     }
 
     @Override
     public void dropIndex(MetadataTransactionContext ctx, String dataverseName, String datasetName, String indexName)
             throws MetadataException {
         try {
-            metadataNode.dropIndex(ctx.getTxnId(), dataverseName, datasetName, indexName);
+            metadataNode.dropIndex(ctx.getJobId(), dataverseName, datasetName, indexName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
+        ctx.dropIndex(dataverseName, datasetName, indexName);
     }
 
     @Override
     public Index getIndex(MetadataTransactionContext ctx, String dataverseName, String datasetName, String indexName)
             throws MetadataException {
+
+        // First look in the context to see if this transaction created the
+        // requested index itself (but the index is still uncommitted).
+        Index index = ctx.getIndex(dataverseName, datasetName, indexName);
+        if (index != null) {
+            // Don't add this index to the cache, since it is still
+            // uncommitted.
+            return index;
+        }
+
+        if (ctx.indexIsDropped(dataverseName, datasetName, indexName)) {
+            // Index has been dropped by this transaction but could still be
+            // in the cache.
+            return null;
+        }
+
+        index = cache.getIndex(dataverseName, datasetName, indexName);
+        if (index != null) {
+            // Index is already in the cache, don't add it again.
+            return index;
+        }
         try {
-            return metadataNode.getIndex(ctx.getTxnId(), dataverseName, datasetName, indexName);
+            index = metadataNode.getIndex(ctx.getJobId(), dataverseName, datasetName, indexName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
+        // We fetched the index from the MetadataNode. Add it to the cache
+        // when this transaction commits.
+        if (index != null) {
+            ctx.addIndex(index);
+        }
+        return index;
     }
 
     @Override
     public void addNode(MetadataTransactionContext ctx, Node node) throws MetadataException {
         try {
-            metadataNode.addNode(ctx.getTxnId(), node);
+            metadataNode.addNode(ctx.getJobId(), node);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -374,7 +425,7 @@
     @Override
     public void addNodegroup(MetadataTransactionContext ctx, NodeGroup nodeGroup) throws MetadataException {
         try {
-            metadataNode.addNodeGroup(ctx.getTxnId(), nodeGroup);
+            metadataNode.addNodeGroup(ctx.getJobId(), nodeGroup);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -384,7 +435,7 @@
     @Override
     public void dropNodegroup(MetadataTransactionContext ctx, String nodeGroupName) throws MetadataException {
         try {
-            metadataNode.dropNodegroup(ctx.getTxnId(), nodeGroupName);
+            metadataNode.dropNodegroup(ctx.getJobId(), nodeGroupName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -412,7 +463,7 @@
             return nodeGroup;
         }
         try {
-            nodeGroup = metadataNode.getNodeGroup(ctx.getTxnId(), nodeGroupName);
+            nodeGroup = metadataNode.getNodeGroup(ctx.getJobId(), nodeGroupName);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -423,72 +474,132 @@
         }
         return nodeGroup;
     }
-   
 
-	
-	@Override
-	public void addFunction(MetadataTransactionContext mdTxnCtx,
-			Function function) throws MetadataException {
-		try {
-			metadataNode.addFunction(mdTxnCtx.getTxnId(), function);
-		} catch (RemoteException e) {
-			throw new MetadataException(e);
-		}
-		mdTxnCtx.addFunction(function);
-	}
+    @Override
+    public void addFunction(MetadataTransactionContext mdTxnCtx, Function function) throws MetadataException {
+        try {
+            metadataNode.addFunction(mdTxnCtx.getJobId(), function);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        mdTxnCtx.addFunction(function);
+    }
 
-	@Override
-	public void dropFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException {
-		try {
-			metadataNode.dropFunction(ctx.getTxnId(), dataverseName,
-					functionName, arity);
-		} catch (RemoteException e) {
-			throw new MetadataException(e);
-		}
-		ctx.dropFunction(dataverseName, functionName, arity);
-	}
+    @Override
+    public void dropFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException {
+        try {
+            metadataNode.dropFunction(ctx.getJobId(), functionSignature);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        ctx.dropFunction(functionSignature);
+    }
 
-	@Override
-	public Function getFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException {
-		// First look in the context to see if this transaction created the
-		// requested dataset itself (but the dataset is still uncommitted).
-		Function function = ctx.getFunction(dataverseName, functionName, arity);
-		if (function != null) {
-			// Don't add this dataverse to the cache, since it is still
-			// uncommitted.
-			return function;
-		}
-		if (ctx.functionIsDropped(dataverseName, functionName, arity)) {
-			// Dataset has been dropped by this transaction but could still be
-			// in the cache.
-			return null;
-		}
-		if (ctx.getDataverse(dataverseName) != null) {
-			// This transaction has dropped and subsequently created the same
-			// dataverse.
-			return null;
-		}
-		function = cache.getFunction(dataverseName, functionName, arity);
-		if (function != null) {
-			// Function is already in the cache, don't add it again.
-			return function;
-		}
-		try {
-			function = metadataNode.getFunction(ctx.getTxnId(), dataverseName,
-					functionName, arity);
-		} catch (RemoteException e) {
-			throw new MetadataException(e);
-		}
-		// We fetched the function from the MetadataNode. Add it to the cache
-		// when this transaction commits.
-		if (function != null) {
-			ctx.addFunction(function);
-		}
-		return function;
+    @Override
+    public Function getFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException {
+        // First look in the context to see if this transaction created the
+        // requested dataset itself (but the dataset is still uncommitted).
+        Function function = ctx.getFunction(functionSignature);
+        if (function != null) {
+            // Don't add this dataverse to the cache, since it is still
+            // uncommitted.
+            return function;
+        }
+        if (ctx.functionIsDropped(functionSignature)) {
+            // Function has been dropped by this transaction but could still be
+            // in the cache.
+            return null;
+        }
+        if (ctx.getDataverse(functionSignature.getNamespace()) != null) {
+            // This transaction has dropped and subsequently created the same
+            // dataverse.
+            return null;
+        }
+        function = cache.getFunction(functionSignature);
+        if (function != null) {
+            // Function is already in the cache, don't add it again.
+            return function;
+        }
+        try {
+            function = metadataNode.getFunction(ctx.getJobId(), functionSignature);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        // We fetched the function from the MetadataNode. Add it to the cache
+        // when this transaction commits.
+        if (function != null) {
+            ctx.addFunction(function);
+        }
+        return function;
 
-	}
+    }
+
+    @Override
+    public void initializeDatasetIdFactory(MetadataTransactionContext ctx) throws MetadataException {
+        try {
+            metadataNode.initializeDatasetIdFactory(ctx.getJobId());
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public List<Function> getDataverseFunctions(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException {
+        List<Function> dataverseFunctions;
+        try {
+            // Assuming that the transaction can read its own writes on the
+            // metadata node.
+            dataverseFunctions = metadataNode.getDataverseFunctions(ctx.getJobId(), dataverseName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        // Don't update the cache to avoid checking against the transaction's
+        // uncommitted functions.
+        return dataverseFunctions;
+    }
+
+    @Override
+    public void dropAdapter(MetadataTransactionContext ctx, String dataverseName, String name) throws MetadataException {
+        try {
+            metadataNode.dropAdapter(ctx.getJobId(), dataverseName, name);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public DatasourceAdapter getAdapter(MetadataTransactionContext ctx, String dataverseName, String name)
+            throws MetadataException {
+        DatasourceAdapter adapter = null;
+        try {
+            adapter = metadataNode.getAdapter(ctx.getJobId(), dataverseName, name);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        return adapter;
+    }
+
+    @Override
+    public void acquireWriteLatch() {
+        metadataLatch.writeLock().lock();
+    }
+
+    @Override
+    public void releaseWriteLatch() {
+        metadataLatch.writeLock().unlock();
+    }
+
+    @Override
+    public void acquireReadLatch() {
+        metadataLatch.readLock().lock();
+    }
+
+    @Override
+    public void releaseReadLatch() {
+        metadataLatch.readLock().unlock();
+    }
+
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
index dabff59..d9c6ed4 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
@@ -21,16 +21,17 @@
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.base.IAsterixApplicationContextInfo;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.api.IMetadataIndex;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
-import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataSecondaryIndexes;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
@@ -39,6 +40,7 @@
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DatasetTupleTranslator;
+import edu.uci.ics.asterix.metadata.entitytupletranslators.DatasourceAdapterTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DatatypeTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.DataverseTupleTranslator;
 import edu.uci.ics.asterix.metadata.entitytupletranslators.FunctionTupleTranslator;
@@ -54,9 +56,15 @@
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexModificationOperationCallback;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexModificationOperationCallback;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -64,57 +72,56 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
+import edu.uci.ics.hyracks.dataflow.common.util.TupleUtils;
 import edu.uci.ics.hyracks.storage.am.btree.exceptions.BTreeDuplicateKeyException;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOp;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
 
 public class MetadataNode implements IMetadataNode {
-
     private static final long serialVersionUID = 1L;
-    private static IIndexRegistryProvider<IIndex> btreeRegistryProvider;
-    public static MetadataNode INSTANCE;
-    // TODO: Temporary transactional resource id for metadata.
-    private static byte[] metadataResourceId = MetadataNode.class.toString().getBytes();
 
-    @SuppressWarnings("unchecked")
-    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
-            .getSerializerDeserializer(BuiltinType.ASTRING);
+    private static final DatasetId METADATA_DATASET_ID = new DatasetId(MetadataPrimaryIndexes.METADATA_DATASET_ID);
 
-    private TransactionProvider transactionProvider;
+    private IIndexLifecycleManager indexLifecycleManager;
+    private TransactionSubsystem transactionSubsystem;
 
-    public MetadataNode(AsterixProperties asterixProperity, IAsterixApplicationContextInfo appContext,
-            TransactionProvider transactionProvider) {
+    public static final MetadataNode INSTANCE = new MetadataNode();
+
+    private MetadataNode() {
         super();
-        this.transactionProvider = transactionProvider;
-        btreeRegistryProvider = appContext.getTreeRegisterProvider();
+    }
+
+    public void initialize(AsterixAppRuntimeContext runtimeContext) {
+        this.transactionSubsystem = runtimeContext.getTransactionSubsystem();
+        this.indexLifecycleManager = runtimeContext.getIndexLifecycleManager();
     }
 
     @Override
-    public void beginTransaction(long transactionId) throws ACIDException, RemoteException {
-        transactionProvider.getTransactionManager().beginTransaction(transactionId);
+    public void beginTransaction(JobId transactionId) throws ACIDException, RemoteException {
+        transactionSubsystem.getTransactionManager().beginTransaction(transactionId);
     }
 
     @Override
-    public void commitTransaction(long txnId) throws RemoteException, ACIDException {
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        transactionProvider.getTransactionManager().commitTransaction(txnCtx);
+    public void commitTransaction(JobId jobId) throws RemoteException, ACIDException {
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        transactionSubsystem.getTransactionManager().commitTransaction(txnCtx, new DatasetId(-1), -1);
     }
 
     @Override
-    public void abortTransaction(long txnId) throws RemoteException, ACIDException {
+    public void abortTransaction(JobId jobId) throws RemoteException, ACIDException {
         try {
-            TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-            transactionProvider.getTransactionManager().abortTransaction(txnCtx);
+            TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+            transactionSubsystem.getTransactionManager().abortTransaction(txnCtx, new DatasetId(-1), -1);
         } catch (ACIDException e) {
             e.printStackTrace();
             throw e;
@@ -122,23 +129,23 @@
     }
 
     @Override
-    public boolean lock(long txnId, int lockMode) throws ACIDException, RemoteException {
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        return transactionProvider.getLockManager().lock(txnCtx, metadataResourceId, lockMode);
+    public void lock(JobId jobId, byte lockMode) throws ACIDException, RemoteException {
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        transactionSubsystem.getLockManager().lock(METADATA_DATASET_ID, -1, lockMode, txnCtx);
     }
 
     @Override
-    public boolean unlock(long txnId) throws ACIDException, RemoteException {
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        return transactionProvider.getLockManager().unlock(txnCtx, metadataResourceId);
+    public void unlock(JobId jobId) throws ACIDException, RemoteException {
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        transactionSubsystem.getLockManager().unlock(METADATA_DATASET_ID, -1, txnCtx);
     }
 
     @Override
-    public void addDataverse(long txnId, Dataverse dataverse) throws MetadataException, RemoteException {
+    public void addDataverse(JobId jobId, Dataverse dataverse) throws MetadataException, RemoteException {
         try {
             DataverseTupleTranslator tupleReaderWriter = new DataverseTupleTranslator(true);
             ITupleReference tuple = tupleReaderWriter.getTupleFromMetadataEntity(dataverse);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.DATAVERSE_DATASET, tuple);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATAVERSE_DATASET, tuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("A dataverse with this name " + dataverse.getDataverseName()
                     + " already exists.", e);
@@ -148,26 +155,27 @@
     }
 
     @Override
-    public void addDataset(long txnId, Dataset dataset) throws MetadataException, RemoteException {
+    public void addDataset(JobId jobId, Dataset dataset) throws MetadataException, RemoteException {
         try {
             // Insert into the 'dataset' dataset.
             DatasetTupleTranslator tupleReaderWriter = new DatasetTupleTranslator(true);
             ITupleReference datasetTuple = tupleReaderWriter.getTupleFromMetadataEntity(dataset);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
-            if (dataset.getType() == DatasetType.INTERNAL || dataset.getType() == DatasetType.FEED) {
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
+            if (dataset.getDatasetType() == DatasetType.INTERNAL || dataset.getDatasetType() == DatasetType.FEED) {
                 // Add the primary index for the dataset.
                 InternalDatasetDetails id = (InternalDatasetDetails) dataset.getDatasetDetails();
                 Index primaryIndex = new Index(dataset.getDataverseName(), dataset.getDatasetName(),
-                        dataset.getDatasetName(), IndexType.BTREE, id.getPrimaryKey(), true);
-                addIndex(txnId, primaryIndex);
+                        dataset.getDatasetName(), IndexType.BTREE, id.getPrimaryKey(), true, dataset.getPendingOp());
+
+                addIndex(jobId, primaryIndex);
                 ITupleReference nodeGroupTuple = createTuple(id.getNodeGroupName(), dataset.getDataverseName(),
                         dataset.getDatasetName());
-                insertTupleIntoIndex(txnId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, nodeGroupTuple);
+                insertTupleIntoIndex(jobId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, nodeGroupTuple);
             }
             // Add entry in datatype secondary index.
-            ITupleReference dataTypeTuple = createTuple(dataset.getDataverseName(), dataset.getDatatypeName(),
+            ITupleReference dataTypeTuple = createTuple(dataset.getDataverseName(), dataset.getItemTypeName(),
                     dataset.getDatasetName());
-            insertTupleIntoIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeTuple);
+            insertTupleIntoIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeTuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("A dataset with this name " + dataset.getDatasetName()
                     + " already exists in dataverse '" + dataset.getDataverseName() + "'.", e);
@@ -177,11 +185,11 @@
     }
 
     @Override
-    public void addIndex(long txnId, Index index) throws MetadataException, RemoteException {
+    public void addIndex(JobId jobId, Index index) throws MetadataException, RemoteException {
         try {
             IndexTupleTranslator tupleWriter = new IndexTupleTranslator(true);
             ITupleReference tuple = tupleWriter.getTupleFromMetadataEntity(index);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.INDEX_DATASET, tuple);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.INDEX_DATASET, tuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("An index with name '" + index.getIndexName() + "' already exists.", e);
         } catch (Exception e) {
@@ -190,11 +198,11 @@
     }
 
     @Override
-    public void addNode(long txnId, Node node) throws MetadataException, RemoteException {
+    public void addNode(JobId jobId, Node node) throws MetadataException, RemoteException {
         try {
             NodeTupleTranslator tupleReaderWriter = new NodeTupleTranslator(true);
             ITupleReference tuple = tupleReaderWriter.getTupleFromMetadataEntity(node);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.NODE_DATASET, tuple);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.NODE_DATASET, tuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("A node with name '" + node.getNodeName() + "' already exists.", e);
         } catch (Exception e) {
@@ -203,11 +211,11 @@
     }
 
     @Override
-    public void addNodeGroup(long txnId, NodeGroup nodeGroup) throws MetadataException, RemoteException {
+    public void addNodeGroup(JobId jobId, NodeGroup nodeGroup) throws MetadataException, RemoteException {
         try {
             NodeGroupTupleTranslator tupleReaderWriter = new NodeGroupTupleTranslator(true);
             ITupleReference tuple = tupleReaderWriter.getTupleFromMetadataEntity(nodeGroup);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.NODEGROUP_DATASET, tuple);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.NODEGROUP_DATASET, tuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("A nodegroup with name '" + nodeGroup.getNodeGroupName() + "' already exists.",
                     e);
@@ -217,11 +225,11 @@
     }
 
     @Override
-    public void addDatatype(long txnId, Datatype datatype) throws MetadataException, RemoteException {
+    public void addDatatype(JobId jobId, Datatype datatype) throws MetadataException, RemoteException {
         try {
-            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(txnId, this, true);
+            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(jobId, this, true);
             ITupleReference tuple = tupleReaderWriter.getTupleFromMetadataEntity(datatype);
-            insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
         } catch (BTreeDuplicateKeyException e) {
             throw new MetadataException("A datatype with name '" + datatype.getDatatypeName() + "' already exists.", e);
         } catch (Exception e) {
@@ -230,75 +238,113 @@
     }
 
     @Override
-	public void addFunction(long txnId, Function function)
-			throws MetadataException, RemoteException {
-		try {
-			// Insert into the 'function' dataset.
-			FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(
-					true);
-			ITupleReference functionTuple = tupleReaderWriter
-					.getTupleFromMetadataEntity(function);
-			insertTupleIntoIndex(txnId,
-					MetadataPrimaryIndexes.FUNCTION_DATASET, functionTuple);
+    public void addFunction(JobId jobId, Function function) throws MetadataException, RemoteException {
+        try {
+            // Insert into the 'function' dataset.
+            FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(true);
+            ITupleReference functionTuple = tupleReaderWriter.getTupleFromMetadataEntity(function);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET, functionTuple);
 
-		} catch (BTreeDuplicateKeyException e) {
-			throw new MetadataException("A dataset with this name "
-					+ function.getFunctionName() + " and arity "
-					+ function.getFunctionArity()
-					+ " already exists in dataverse '"
-					+ function.getDataverseName() + "'.", e);
-		} catch (Exception e) {
-			throw new MetadataException(e);
-		}
-	}
-    
-    public void insertIntoDatatypeSecondaryIndex(long txnId, String dataverseName, String nestedTypeName,
-            String topTypeName) throws Exception {
-        ITupleReference tuple = createTuple(dataverseName, nestedTypeName, topTypeName);
-        insertTupleIntoIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, tuple);
+        } catch (BTreeDuplicateKeyException e) {
+            throw new MetadataException("A function with this name " + function.getName() + " and arity "
+                    + function.getArity() + " already exists in dataverse '" + function.getDataverseName() + "'.", e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
     }
 
-    private void insertTupleIntoIndex(long txnId, IMetadataIndex index, ITupleReference tuple) throws Exception {
-        int fileId = index.getFileId();
-        BTree btree = (BTree) btreeRegistryProvider.getRegistry(null).get(fileId);
-        btree.open(fileId);
-        ITreeIndexAccessor indexAccessor = btree.createAccessor();
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        transactionProvider.getLockManager().lock(txnCtx, index.getResourceId(), LockMode.EXCLUSIVE);
+    public void insertIntoDatatypeSecondaryIndex(JobId jobId, String dataverseName, String nestedTypeName,
+            String topTypeName) throws Exception {
+        ITupleReference tuple = createTuple(dataverseName, nestedTypeName, topTypeName);
+        insertTupleIntoIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, tuple);
+    }
+
+    private void insertTupleIntoIndex(JobId jobId, IMetadataIndex metadataIndex, ITupleReference tuple)
+            throws Exception {
+        long resourceID = metadataIndex.getResourceID();
+        ILSMIndex lsmIndex = (ILSMIndex) indexLifecycleManager.getIndex(resourceID);
+        indexLifecycleManager.open(resourceID);
+
+        //prepare a Callback for logging
+        IModificationOperationCallback modCallback = createIndexModificationCallback(jobId, resourceID, metadataIndex,
+                lsmIndex, IndexOperation.INSERT);
+
+        IIndexAccessor indexAccessor = lsmIndex.createAccessor(modCallback, NoOpOperationCallback.INSTANCE);
+
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        txnCtx.setTransactionType(TransactionType.READ_WRITE);
+
         // TODO: fix exceptions once new BTree exception model is in hyracks.
         indexAccessor.insert(tuple);
-        index.getTreeLogger().generateLogRecord(transactionProvider, txnCtx, IndexOp.INSERT, tuple);
+
+        indexLifecycleManager.close(resourceID);
+    }
+
+    private IModificationOperationCallback createIndexModificationCallback(JobId jobId, long resourceId,
+            IMetadataIndex metadataIndex, ILSMIndex lsmIndex, IndexOperation indexOp) throws Exception {
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+
+        if (metadataIndex.isPrimaryIndex()) {
+            return new PrimaryIndexModificationOperationCallback(metadataIndex.getDatasetId().getId(),
+                    metadataIndex.getPrimaryKeyIndexes(), txnCtx, transactionSubsystem.getLockManager(),
+                    transactionSubsystem, resourceId, ResourceType.LSM_BTREE, indexOp);
+        } else {
+            return new SecondaryIndexModificationOperationCallback(metadataIndex.getDatasetId().getId(),
+                    metadataIndex.getPrimaryKeyIndexes(), txnCtx, transactionSubsystem.getLockManager(),
+                    transactionSubsystem, resourceId, ResourceType.LSM_BTREE, indexOp);
+        }
     }
 
     @Override
-    public void dropDataverse(long txnId, String dataverseName) throws MetadataException, RemoteException {
+    public void dropDataverse(JobId jobId, String dataverseName) throws MetadataException, RemoteException {
         try {
             List<Dataset> dataverseDatasets;
-            // As a side effect, acquires an S lock on the 'dataset' dataset
-            // on behalf of txnId.
-            dataverseDatasets = getDataverseDatasets(txnId, dataverseName);
+
+            dataverseDatasets = getDataverseDatasets(jobId, dataverseName);
             if (dataverseDatasets != null && dataverseDatasets.size() > 0) {
                 // Drop all datasets in this dataverse.
                 for (int i = 0; i < dataverseDatasets.size(); i++) {
-                    dropDataset(txnId, dataverseName, dataverseDatasets.get(i).getDatasetName());
+                    dropDataset(jobId, dataverseName, dataverseDatasets.get(i).getDatasetName());
                 }
             }
             List<Datatype> dataverseDatatypes;
             // As a side effect, acquires an S lock on the 'datatype' dataset
             // on behalf of txnId.
-            dataverseDatatypes = getDataverseDatatypes(txnId, dataverseName);
+            dataverseDatatypes = getDataverseDatatypes(jobId, dataverseName);
             if (dataverseDatatypes != null && dataverseDatatypes.size() > 0) {
                 // Drop all types in this dataverse.
                 for (int i = 0; i < dataverseDatatypes.size(); i++) {
-                    forceDropDatatype(txnId, dataverseName, dataverseDatatypes.get(i).getDatatypeName());
+                    forceDropDatatype(jobId, dataverseName, dataverseDatatypes.get(i).getDatatypeName());
                 }
             }
+
+            // As a side effect, acquires an S lock on the 'Function' dataset
+            // on behalf of txnId.
+            List<Function> dataverseFunctions = getDataverseFunctions(jobId, dataverseName);
+            if (dataverseFunctions != null && dataverseFunctions.size() > 0) {
+                // Drop all functions in this dataverse.
+                for (Function function : dataverseFunctions) {
+                    dropFunction(jobId, new FunctionSignature(dataverseName, function.getName(), function.getArity()));
+                }
+            }
+
+            // As a side effect, acquires an S lock on the 'Adapter' dataset
+            // on behalf of txnId.
+            List<DatasourceAdapter> dataverseAdapters = getDataverseAdapters(jobId, dataverseName);
+            if (dataverseAdapters != null && dataverseAdapters.size() > 0) {
+                // Drop all functions in this dataverse.
+                for (DatasourceAdapter adapter : dataverseAdapters) {
+                    dropAdapter(jobId, dataverseName, adapter.getAdapterIdentifier().getAdapterName());
+                }
+            }
+
             // Delete the dataverse entry from the 'dataverse' dataset.
             ITupleReference searchKey = createTuple(dataverseName);
             // As a side effect, acquires an S lock on the 'dataverse' dataset
             // on behalf of txnId.
-            ITupleReference tuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.DATAVERSE_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.DATAVERSE_DATASET, tuple);
+            ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATAVERSE_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATAVERSE_DATASET, tuple);
+
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
         } catch (TreeIndexException e) {
@@ -309,11 +355,11 @@
     }
 
     @Override
-    public void dropDataset(long txnId, String dataverseName, String datasetName) throws MetadataException,
+    public void dropDataset(JobId jobId, String dataverseName, String datasetName) throws MetadataException,
             RemoteException {
         Dataset dataset;
         try {
-            dataset = getDataset(txnId, dataverseName, datasetName);
+            dataset = getDataset(jobId, dataverseName, datasetName);
         } catch (Exception e) {
             throw new MetadataException(e);
         }
@@ -325,50 +371,63 @@
             ITupleReference searchKey = createTuple(dataverseName, datasetName);
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'dataset' dataset.
-            ITupleReference datasetTuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
+            try {
+                ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATASET_DATASET,
+                        searchKey);
+                deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
+            } catch (TreeIndexException tie) {
+                //ignore this exception and continue deleting all relevant artifacts. 
+            }
+
             // Delete entry from secondary index 'group'.
-            if (dataset.getType() == DatasetType.INTERNAL || dataset.getType() == DatasetType.FEED) {
+            if (dataset.getDatasetType() == DatasetType.INTERNAL || dataset.getDatasetType() == DatasetType.FEED) {
                 InternalDatasetDetails id = (InternalDatasetDetails) dataset.getDatasetDetails();
                 ITupleReference groupNameSearchKey = createTuple(id.getNodeGroupName(), dataverseName, datasetName);
                 // Searches the index for the tuple to be deleted. Acquires an S
                 // lock on the GROUPNAME_ON_DATASET_INDEX index.
-                ITupleReference groupNameTuple = getTupleToBeDeleted(txnId,
-                        MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, groupNameSearchKey);
-                deleteTupleFromIndex(txnId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, groupNameTuple);
-            }
-            // Delete entry from secondary index 'type'.
-            ITupleReference dataTypeSearchKey = createTuple(dataverseName, dataset.getDatatypeName(), datasetName);
-            // Searches the index for the tuple to be deleted. Acquires an S
-            // lock on the DATATYPENAME_ON_DATASET_INDEX index.
-            ITupleReference dataTypeTuple = getTupleToBeDeleted(txnId,
-                    MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeSearchKey);
-            deleteTupleFromIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeTuple);
-            // Delete entry(s) from the 'indexes' dataset.
-            if (dataset.getType() == DatasetType.INTERNAL || dataset.getType() == DatasetType.FEED) {
-                List<Index> datasetIndexes = getDatasetIndexes(txnId, dataverseName, datasetName);
-                for (Index index : datasetIndexes) {
-                    dropIndex(txnId, dataverseName, datasetName, index.getIndexName());
+                try {
+                    ITupleReference groupNameTuple = getTupleToBeDeleted(jobId,
+                            MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, groupNameSearchKey);
+                    deleteTupleFromIndex(jobId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, groupNameTuple);
+                } catch (TreeIndexException tie) {
+                    //ignore this exception and continue deleting all relevant artifacts.
                 }
             }
-            // TODO: Change this to be a BTree specific exception, e.g.,
-            // BTreeKeyDoesNotExistException.
-        } catch (TreeIndexException e) {
-            throw new MetadataException("Cannot drop dataset '" + datasetName + "' because it doesn't exist.", e);
+            // Delete entry from secondary index 'type'.
+            ITupleReference dataTypeSearchKey = createTuple(dataverseName, dataset.getItemTypeName(), datasetName);
+            // Searches the index for the tuple to be deleted. Acquires an S
+            // lock on the DATATYPENAME_ON_DATASET_INDEX index.
+            try {
+                ITupleReference dataTypeTuple = getTupleToBeDeleted(jobId,
+                        MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeSearchKey);
+                deleteTupleFromIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, dataTypeTuple);
+            } catch (TreeIndexException tie) {
+                //ignore this exception and continue deleting all relevant artifacts.
+            }
+
+            // Delete entry(s) from the 'indexes' dataset.
+            if (dataset.getDatasetType() == DatasetType.INTERNAL || dataset.getDatasetType() == DatasetType.FEED) {
+                List<Index> datasetIndexes = getDatasetIndexes(jobId, dataverseName, datasetName);
+                if (datasetIndexes != null) {
+                    for (Index index : datasetIndexes) {
+                        dropIndex(jobId, dataverseName, datasetName, index.getIndexName());
+                    }
+                }
+            }
         } catch (Exception e) {
             throw new MetadataException(e);
         }
     }
 
     @Override
-    public void dropIndex(long txnId, String dataverseName, String datasetName, String indexName)
+    public void dropIndex(JobId jobId, String dataverseName, String datasetName, String indexName)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datasetName, indexName);
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'index' dataset.
-            ITupleReference tuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.INDEX_DATASET, tuple);
+            ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.INDEX_DATASET, tuple);
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
         } catch (TreeIndexException e) {
@@ -380,10 +439,10 @@
     }
 
     @Override
-    public void dropNodegroup(long txnId, String nodeGroupName) throws MetadataException, RemoteException {
+    public void dropNodegroup(JobId jobId, String nodeGroupName) throws MetadataException, RemoteException {
         List<String> datasetNames;
         try {
-            datasetNames = getDatasetNamesPartitionedOnThisNodeGroup(txnId, nodeGroupName);
+            datasetNames = getDatasetNamesPartitionedOnThisNodeGroup(jobId, nodeGroupName);
         } catch (Exception e) {
             throw new MetadataException(e);
         }
@@ -399,8 +458,8 @@
             ITupleReference searchKey = createTuple(nodeGroupName);
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'nodegroup' dataset.
-            ITupleReference tuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.NODEGROUP_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.NODEGROUP_DATASET, tuple);
+            ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.NODEGROUP_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.NODEGROUP_DATASET, tuple);
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
         } catch (TreeIndexException e) {
@@ -411,13 +470,13 @@
     }
 
     @Override
-    public void dropDatatype(long txnId, String dataverseName, String datatypeName) throws MetadataException,
+    public void dropDatatype(JobId jobId, String dataverseName, String datatypeName) throws MetadataException,
             RemoteException {
         List<String> datasetNames;
         List<String> usedDatatypes;
         try {
-            datasetNames = getDatasetNamesDeclaredByThisDatatype(txnId, dataverseName, datatypeName);
-            usedDatatypes = getDatatypeNamesUsingThisDatatype(txnId, dataverseName, datatypeName);
+            datasetNames = getDatasetNamesDeclaredByThisDatatype(jobId, dataverseName, datatypeName);
+            usedDatatypes = getDatatypeNamesUsingThisDatatype(jobId, dataverseName, datatypeName);
         } catch (Exception e) {
             throw new MetadataException(e);
         }
@@ -442,14 +501,15 @@
             ITupleReference searchKey = createTuple(dataverseName, datatypeName);
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'datatype' dataset.
-            ITupleReference tuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
-            deleteFromDatatypeSecondaryIndex(txnId, dataverseName, datatypeName);
-            List<String> nestedTypes = getNestedDatatypeNames(txnId, dataverseName, datatypeName);
+            ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey);
+            // This call uses the secondary index on datatype. Get nested types before deleting entry from secondary index.
+            List<String> nestedTypes = getNestedDatatypeNames(jobId, dataverseName, datatypeName);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
+            deleteFromDatatypeSecondaryIndex(jobId, dataverseName, datatypeName);
             for (String nestedType : nestedTypes) {
-                Datatype dt = getDatatype(txnId, dataverseName, nestedType);
+                Datatype dt = getDatatype(jobId, dataverseName, nestedType);
                 if (dt != null && dt.getIsAnonymous()) {
-                    dropDatatype(txnId, dataverseName, dt.getDatatypeName());
+                    dropDatatype(jobId, dataverseName, dt.getDatatypeName());
                 }
             }
             // TODO: Change this to be a BTree specific exception, e.g.,
@@ -461,14 +521,14 @@
         }
     }
 
-    private void forceDropDatatype(long txnId, String dataverseName, String datatypeName) throws AsterixException {
+    private void forceDropDatatype(JobId jobId, String dataverseName, String datatypeName) throws AsterixException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datatypeName);
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'datatype' dataset.
-            ITupleReference tuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey);
-            deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
-            deleteFromDatatypeSecondaryIndex(txnId, dataverseName, datatypeName);
+            ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
+            deleteFromDatatypeSecondaryIndex(jobId, dataverseName, datatypeName);
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
         } catch (TreeIndexException e) {
@@ -480,17 +540,17 @@
         }
     }
 
-    private void deleteFromDatatypeSecondaryIndex(long txnId, String dataverseName, String datatypeName)
+    private void deleteFromDatatypeSecondaryIndex(JobId jobId, String dataverseName, String datatypeName)
             throws AsterixException {
         try {
-            List<String> nestedTypes = getNestedDatatypeNames(txnId, dataverseName, datatypeName);
+            List<String> nestedTypes = getNestedDatatypeNames(jobId, dataverseName, datatypeName);
             for (String nestedType : nestedTypes) {
                 ITupleReference searchKey = createTuple(dataverseName, nestedType, datatypeName);
                 // Searches the index for the tuple to be deleted. Acquires an S
                 // lock on the DATATYPENAME_ON_DATATYPE_INDEX index.
-                ITupleReference tuple = getTupleToBeDeleted(txnId,
+                ITupleReference tuple = getTupleToBeDeleted(jobId,
                         MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, searchKey);
-                deleteTupleFromIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, tuple);
+                deleteTupleFromIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, tuple);
             }
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
@@ -503,31 +563,49 @@
         }
     }
 
-    private void deleteTupleFromIndex(long txnId, IMetadataIndex index, ITupleReference tuple) throws Exception {
-        int fileId = index.getFileId();
-        BTree btree = (BTree) btreeRegistryProvider.getRegistry(null).get(fileId);
-        btree.open(fileId);
+    private void deleteTupleFromIndex(JobId jobId, IMetadataIndex metadataIndex, ITupleReference tuple)
+            throws Exception {
+        long resourceID = metadataIndex.getResourceID();
+        ILSMIndex lsmIndex = (ILSMIndex) indexLifecycleManager.getIndex(resourceID);
+        indexLifecycleManager.open(resourceID);
+        //prepare a Callback for logging
+        IModificationOperationCallback modCallback = createIndexModificationCallback(jobId, resourceID, metadataIndex,
+                lsmIndex, IndexOperation.DELETE);
+        IIndexAccessor indexAccessor = lsmIndex.createAccessor(modCallback, NoOpOperationCallback.INSTANCE);
 
-        ITreeIndexAccessor indexAccessor = btree.createAccessor();
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        // This lock is actually an upgrade, because a deletion must be preceded
-        // by a search, in order to be able to undo an aborted deletion.
-        // The transaction with txnId will have an S lock on the
-        // resource. Note that lock converters have a higher priority than
-        // regular waiters in the LockManager.
-        transactionProvider.getLockManager().lock(txnCtx, index.getResourceId(), LockMode.EXCLUSIVE);
+        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        txnCtx.setTransactionType(TransactionType.READ_WRITE);
+
         indexAccessor.delete(tuple);
-        index.getTreeLogger().generateLogRecord(transactionProvider, txnCtx, IndexOp.DELETE, tuple);
+        indexLifecycleManager.close(resourceID);
     }
 
     @Override
-    public Dataverse getDataverse(long txnId, String dataverseName) throws MetadataException, RemoteException {
+    public List<Dataverse> getDataverses(JobId jobId) throws MetadataException, RemoteException {
+        try {
+            DataverseTupleTranslator tupleReaderWriter = new DataverseTupleTranslator(false);
+            IValueExtractor<Dataverse> valueExtractor = new MetadataEntityValueExtractor<Dataverse>(tupleReaderWriter);
+            List<Dataverse> results = new ArrayList<Dataverse>();
+            searchIndex(jobId, MetadataPrimaryIndexes.DATAVERSE_DATASET, null, valueExtractor, results);
+            if (results.isEmpty()) {
+                return null;
+            }
+            return results;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public Dataverse getDataverse(JobId jobId, String dataverseName) throws MetadataException, RemoteException {
+
         try {
             ITupleReference searchKey = createTuple(dataverseName);
             DataverseTupleTranslator tupleReaderWriter = new DataverseTupleTranslator(false);
             IValueExtractor<Dataverse> valueExtractor = new MetadataEntityValueExtractor<Dataverse>(tupleReaderWriter);
             List<Dataverse> results = new ArrayList<Dataverse>();
-            searchIndex(txnId, MetadataPrimaryIndexes.DATAVERSE_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATAVERSE_DATASET, searchKey, valueExtractor, results);
             if (results.isEmpty()) {
                 return null;
             }
@@ -539,28 +617,28 @@
     }
 
     @Override
-    public List<Dataset> getDataverseDatasets(long txnId, String dataverseName) throws MetadataException,
+    public List<Dataset> getDataverseDatasets(JobId jobId, String dataverseName) throws MetadataException,
             RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName);
             DatasetTupleTranslator tupleReaderWriter = new DatasetTupleTranslator(false);
             IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<Dataset>(tupleReaderWriter);
             List<Dataset> results = new ArrayList<Dataset>();
-            searchIndex(txnId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
             return results;
         } catch (Exception e) {
             throw new MetadataException(e);
         }
     }
 
-    private List<Datatype> getDataverseDatatypes(long txnId, String dataverseName) throws MetadataException,
+    private List<Datatype> getDataverseDatatypes(JobId jobId, String dataverseName) throws MetadataException,
             RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName);
-            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(txnId, this, false);
+            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(jobId, this, false);
             IValueExtractor<Datatype> valueExtractor = new MetadataEntityValueExtractor<Datatype>(tupleReaderWriter);
             List<Datatype> results = new ArrayList<Datatype>();
-            searchIndex(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey, valueExtractor, results);
             return results;
         } catch (Exception e) {
             throw new MetadataException(e);
@@ -568,14 +646,14 @@
     }
 
     @Override
-    public Dataset getDataset(long txnId, String dataverseName, String datasetName) throws MetadataException,
+    public Dataset getDataset(JobId jobId, String dataverseName, String datasetName) throws MetadataException,
             RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datasetName);
             DatasetTupleTranslator tupleReaderWriter = new DatasetTupleTranslator(false);
             List<Dataset> results = new ArrayList<Dataset>();
             IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<Dataset>(tupleReaderWriter);
-            searchIndex(txnId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
             if (results.isEmpty()) {
                 return null;
             }
@@ -585,13 +663,13 @@
         }
     }
 
-    private List<String> getDatasetNamesDeclaredByThisDatatype(long txnId, String dataverseName, String datatypeName)
+    private List<String> getDatasetNamesDeclaredByThisDatatype(JobId jobId, String dataverseName, String datatypeName)
             throws MetadataException, RemoteException {
         try {
-            ITupleReference searchKey = createTuple(dataverseName, dataverseName);
+            ITupleReference searchKey = createTuple(dataverseName, datatypeName);
             List<String> results = new ArrayList<String>();
             IValueExtractor<String> valueExtractor = new DatasetNameValueExtractor();
-            searchIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, searchKey, valueExtractor,
+            searchIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX, searchKey, valueExtractor,
                     results);
             return results;
         } catch (Exception e) {
@@ -599,13 +677,13 @@
         }
     }
 
-    public List<String> getDatatypeNamesUsingThisDatatype(long txnId, String dataverseName, String datatypeName)
+    public List<String> getDatatypeNamesUsingThisDatatype(JobId jobId, String dataverseName, String datatypeName)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datatypeName);
             List<String> results = new ArrayList<String>();
             IValueExtractor<String> valueExtractor = new DatatypeNameValueExtractor(dataverseName, this);
-            searchIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, searchKey, valueExtractor,
+            searchIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, searchKey, valueExtractor,
                     results);
             return results;
         } catch (Exception e) {
@@ -613,13 +691,13 @@
         }
     }
 
-    private List<String> getNestedDatatypeNames(long txnId, String dataverseName, String datatypeName)
+    private List<String> getNestedDatatypeNames(JobId jobId, String dataverseName, String datatypeName)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName);
             List<String> results = new ArrayList<String>();
             IValueExtractor<String> valueExtractor = new NestedDatatypeNameValueExtractor(datatypeName);
-            searchIndex(txnId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, searchKey, valueExtractor,
+            searchIndex(jobId, MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX, searchKey, valueExtractor,
                     results);
             return results;
         } catch (Exception e) {
@@ -627,13 +705,13 @@
         }
     }
 
-    public List<String> getDatasetNamesPartitionedOnThisNodeGroup(long txnId, String nodegroup)
+    public List<String> getDatasetNamesPartitionedOnThisNodeGroup(JobId jobId, String nodegroup)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(nodegroup);
             List<String> results = new ArrayList<String>();
             IValueExtractor<String> valueExtractor = new DatasetNameValueExtractor();
-            searchIndex(txnId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX, searchKey, valueExtractor, results);
             return results;
         } catch (Exception e) {
             throw new MetadataException(e);
@@ -641,14 +719,14 @@
     }
 
     @Override
-    public Index getIndex(long txnId, String dataverseName, String datasetName, String indexName)
+    public Index getIndex(JobId jobId, String dataverseName, String datasetName, String indexName)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datasetName, indexName);
             IndexTupleTranslator tupleReaderWriter = new IndexTupleTranslator(false);
             IValueExtractor<Index> valueExtractor = new MetadataEntityValueExtractor<Index>(tupleReaderWriter);
             List<Index> results = new ArrayList<Index>();
-            searchIndex(txnId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey, valueExtractor, results);
             if (results.isEmpty()) {
                 return null;
             }
@@ -659,14 +737,14 @@
     }
 
     @Override
-    public List<Index> getDatasetIndexes(long txnId, String dataverseName, String datasetName)
+    public List<Index> getDatasetIndexes(JobId jobId, String dataverseName, String datasetName)
             throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datasetName);
             IndexTupleTranslator tupleReaderWriter = new IndexTupleTranslator(false);
             IValueExtractor<Index> valueExtractor = new MetadataEntityValueExtractor<Index>(tupleReaderWriter);
             List<Index> results = new ArrayList<Index>();
-            searchIndex(txnId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.INDEX_DATASET, searchKey, valueExtractor, results);
             return results;
         } catch (Exception e) {
             throw new MetadataException(e);
@@ -674,14 +752,14 @@
     }
 
     @Override
-    public Datatype getDatatype(long txnId, String dataverseName, String datatypeName) throws MetadataException,
+    public Datatype getDatatype(JobId jobId, String dataverseName, String datatypeName) throws MetadataException,
             RemoteException {
         try {
             ITupleReference searchKey = createTuple(dataverseName, datatypeName);
-            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(txnId, this, false);
+            DatatypeTupleTranslator tupleReaderWriter = new DatatypeTupleTranslator(jobId, this, false);
             IValueExtractor<Datatype> valueExtractor = new MetadataEntityValueExtractor<Datatype>(tupleReaderWriter);
             List<Datatype> results = new ArrayList<Datatype>();
-            searchIndex(txnId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey, valueExtractor, results);
             if (results.isEmpty()) {
                 return null;
             }
@@ -692,13 +770,13 @@
     }
 
     @Override
-    public NodeGroup getNodeGroup(long txnId, String nodeGroupName) throws MetadataException, RemoteException {
+    public NodeGroup getNodeGroup(JobId jobId, String nodeGroupName) throws MetadataException, RemoteException {
         try {
             ITupleReference searchKey = createTuple(nodeGroupName);
             NodeGroupTupleTranslator tupleReaderWriter = new NodeGroupTupleTranslator(false);
             IValueExtractor<NodeGroup> valueExtractor = new MetadataEntityValueExtractor<NodeGroup>(tupleReaderWriter);
             List<NodeGroup> results = new ArrayList<NodeGroup>();
-            searchIndex(txnId, MetadataPrimaryIndexes.NODEGROUP_DATASET, searchKey, valueExtractor, results);
+            searchIndex(jobId, MetadataPrimaryIndexes.NODEGROUP_DATASET, searchKey, valueExtractor, results);
             if (results.isEmpty()) {
                 return null;
             }
@@ -707,70 +785,65 @@
             throw new MetadataException(e);
         }
     }
-    
-    @Override
-	public Function getFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException {
-		try {
-			ITupleReference searchKey = createTuple(dataverseName,
-					functionName, "" + arity);
-			FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(
-					false);
-			List<Function> results = new ArrayList<Function>();
-			IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<Function>(
-					tupleReaderWriter);
-			searchIndex(txnId, MetadataPrimaryIndexes.FUNCTION_DATASET,
-					searchKey, valueExtractor, results);
-			if (results.isEmpty()) {
-				return null;
-			}
-			return results.get(0);
-		} catch (Exception e) {
-			throw new MetadataException(e);
-		}
-	}
 
     @Override
-	public void dropFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException {
-		Function function;
-		try {
-			function = getFunction(txnId, dataverseName, functionName, arity);
-		} catch (Exception e) {
-			throw new MetadataException(e);
-		}
-		if (function == null) {
-			throw new MetadataException("Cannot drop function '" + functionName
-					+ " and arity " + arity + "' because it doesn't exist.");
-		}
-		try {
-			// Delete entry from the 'function' dataset.
-			ITupleReference searchKey = createTuple(dataverseName,
-					functionName, "" + arity);
-			// Searches the index for the tuple to be deleted. Acquires an S
-			// lock on the 'function' dataset.
-			ITupleReference datasetTuple = getTupleToBeDeleted(txnId,
-					MetadataPrimaryIndexes.FUNCTION_DATASET, searchKey);
-			deleteTupleFromIndex(txnId, MetadataPrimaryIndexes.FUNCTION_DATASET,
-					datasetTuple);
+    public Function getFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(functionSignature.getNamespace(), functionSignature.getName(), ""
+                    + functionSignature.getArity());
+            FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(false);
+            List<Function> results = new ArrayList<Function>();
+            IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<Function>(tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET, searchKey, valueExtractor, results);
+            if (results.isEmpty()) {
+                return null;
+            }
+            return results.get(0);
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new MetadataException(e);
+        }
+    }
 
-			// TODO: Change this to be a BTree specific exception, e.g.,
-			// BTreeKeyDoesNotExistException.
-		} catch (TreeIndexException e) {
-			throw new MetadataException("Cannot drop function '" + functionName
-					+ " and arity " + arity + "' because it doesn't exist.", e);
-		} catch (Exception e) {
-			throw new MetadataException(e);
-		}
-	}
-    
-    private ITupleReference getTupleToBeDeleted(long txnId, IMetadataIndex metadataIndex, ITupleReference searchKey)
+    @Override
+    public void dropFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException,
+            RemoteException {
+
+        Function function;
+        try {
+            function = getFunction(jobId, functionSignature);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+        if (function == null) {
+            throw new MetadataException("Cannot drop function '" + functionSignature.toString()
+                    + "' because it doesn't exist.");
+        }
+        try {
+            // Delete entry from the 'function' dataset.
+            ITupleReference searchKey = createTuple(functionSignature.getNamespace(), functionSignature.getName());
+            // Searches the index for the tuple to be deleted. Acquires an S
+            // lock on the 'function' dataset.
+            ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET,
+                    searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET, datasetTuple);
+
+            // TODO: Change this to be a BTree specific exception, e.g.,
+            // BTreeKeyDoesNotExistException.
+        } catch (TreeIndexException e) {
+            throw new MetadataException("There is no function with the name " + functionSignature.getName()
+                    + " and arity " + functionSignature.getArity(), e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    private ITupleReference getTupleToBeDeleted(JobId jobId, IMetadataIndex metadataIndex, ITupleReference searchKey)
             throws Exception {
         IValueExtractor<ITupleReference> valueExtractor = new TupleCopyValueExtractor(metadataIndex.getTypeTraits());
         List<ITupleReference> results = new ArrayList<ITupleReference>();
-        searchIndex(txnId, metadataIndex, searchKey, valueExtractor, results);
+        searchIndex(jobId, metadataIndex, searchKey, valueExtractor, results);
         if (results.isEmpty()) {
             // TODO: Temporarily a TreeIndexException to make it get caught by
             // caller in the appropriate catch block.
@@ -780,29 +853,113 @@
         return results.get(0);
     }
 
-    private <ResultType> void searchIndex(long txnId, IMetadataIndex index, ITupleReference searchKey,
-            IValueExtractor<ResultType> valueExtractor, List<ResultType> results) throws Exception {
-        TransactionContext txnCtx = transactionProvider.getTransactionManager().getTransactionContext(txnId);
-        transactionProvider.getLockManager().lock(txnCtx, index.getResourceId(), LockMode.SHARED);
-        IBinaryComparatorFactory[] comparatorFactories = index.getKeyBinaryComparatorFactory();
-        int fileId = index.getFileId();
-        BTree btree = (BTree) btreeRegistryProvider.getRegistry(null).get(fileId);
-        btree.open(fileId);
-        ITreeIndexFrame leafFrame = btree.getLeafFrameFactory().createFrame();
-        ITreeIndexAccessor indexAccessor = btree.createAccessor();
-        ITreeIndexCursor rangeCursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) leafFrame, false);
-        IBinaryComparator[] searchCmps = new IBinaryComparator[searchKey.getFieldCount()];
-        for (int i = 0; i < searchKey.getFieldCount(); i++) {
-            searchCmps[i] = comparatorFactories[i].createBinaryComparator();
+    //Debugging Method
+    public String printMetadata() {
+
+        StringBuilder sb = new StringBuilder();
+        try {
+            IMetadataIndex index = MetadataPrimaryIndexes.DATAVERSE_DATASET;
+            long resourceID = index.getResourceID();
+            IIndex indexInstance = indexLifecycleManager.getIndex(resourceID);
+            indexLifecycleManager.open(resourceID);
+            IIndexAccessor indexAccessor = indexInstance.createAccessor(NoOpOperationCallback.INSTANCE,
+                    NoOpOperationCallback.INSTANCE);
+            ITreeIndexCursor rangeCursor = (ITreeIndexCursor) indexAccessor.createSearchCursor();
+
+            RangePredicate rangePred = null;
+            rangePred = new RangePredicate(null, null, true, true, null, null);
+            indexAccessor.search(rangeCursor, rangePred);
+            try {
+                while (rangeCursor.hasNext()) {
+                    rangeCursor.next();
+                    sb.append(TupleUtils.printTuple(rangeCursor.getTuple(),
+                            new ISerializerDeserializer[] { AqlSerializerDeserializerProvider.INSTANCE
+                                    .getSerializerDeserializer(BuiltinType.ASTRING) }));
+                }
+            } finally {
+                rangeCursor.close();
+            }
+            indexLifecycleManager.close(resourceID);
+
+            index = MetadataPrimaryIndexes.DATASET_DATASET;
+            resourceID = index.getResourceID();
+            indexInstance = indexLifecycleManager.getIndex(resourceID);
+            indexLifecycleManager.open(resourceID);
+            indexAccessor = indexInstance
+                    .createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            rangeCursor = (ITreeIndexCursor) indexAccessor.createSearchCursor();
+
+            rangePred = null;
+            rangePred = new RangePredicate(null, null, true, true, null, null);
+            indexAccessor.search(rangeCursor, rangePred);
+            try {
+                while (rangeCursor.hasNext()) {
+                    rangeCursor.next();
+                    sb.append(TupleUtils.printTuple(rangeCursor.getTuple(), new ISerializerDeserializer[] {
+                            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING),
+                            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING) }));
+                }
+            } finally {
+                rangeCursor.close();
+            }
+            indexLifecycleManager.close(resourceID);
+
+            index = MetadataPrimaryIndexes.INDEX_DATASET;
+            resourceID = index.getResourceID();
+            indexInstance = indexLifecycleManager.getIndex(resourceID);
+            indexLifecycleManager.open(resourceID);
+            indexAccessor = indexInstance
+                    .createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            rangeCursor = (ITreeIndexCursor) indexAccessor.createSearchCursor();
+
+            rangePred = null;
+            rangePred = new RangePredicate(null, null, true, true, null, null);
+            indexAccessor.search(rangeCursor, rangePred);
+            try {
+                while (rangeCursor.hasNext()) {
+                    rangeCursor.next();
+                    sb.append(TupleUtils.printTuple(rangeCursor.getTuple(), new ISerializerDeserializer[] {
+                            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING),
+                            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING),
+                            AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ASTRING) }));
+                }
+            } finally {
+                rangeCursor.close();
+            }
+            indexLifecycleManager.close(resourceID);
+        } catch (Exception e) {
+            e.printStackTrace();
         }
-        MultiComparator searchCmp = new MultiComparator(searchCmps);
-        RangePredicate rangePred = new RangePredicate(true, searchKey, searchKey, true, true, searchCmp, searchCmp);
+        return sb.toString();
+    }
+
+    private <ResultType> void searchIndex(JobId jobId, IMetadataIndex index, ITupleReference searchKey,
+            IValueExtractor<ResultType> valueExtractor, List<ResultType> results) throws Exception {
+        IBinaryComparatorFactory[] comparatorFactories = index.getKeyBinaryComparatorFactory();
+        long resourceID = index.getResourceID();
+        IIndex indexInstance = indexLifecycleManager.getIndex(resourceID);
+        indexLifecycleManager.open(resourceID);
+        IIndexAccessor indexAccessor = indexInstance.createAccessor(NoOpOperationCallback.INSTANCE,
+                NoOpOperationCallback.INSTANCE);
+        ITreeIndexCursor rangeCursor = (ITreeIndexCursor) indexAccessor.createSearchCursor();
+
+        IBinaryComparator[] searchCmps = null;
+        MultiComparator searchCmp = null;
+        RangePredicate rangePred = null;
+        if (searchKey != null) {
+            searchCmps = new IBinaryComparator[searchKey.getFieldCount()];
+            for (int i = 0; i < searchKey.getFieldCount(); i++) {
+                searchCmps[i] = comparatorFactories[i].createBinaryComparator();
+            }
+            searchCmp = new MultiComparator(searchCmps);
+        }
+        rangePred = new RangePredicate(searchKey, searchKey, true, true, searchCmp, searchCmp);
         indexAccessor.search(rangeCursor, rangePred);
 
         try {
             while (rangeCursor.hasNext()) {
                 rangeCursor.next();
-                ResultType result = valueExtractor.getValue(txnId, rangeCursor.getTuple());
+                ResultType result = valueExtractor.getValue(jobId, rangeCursor.getTuple());
                 if (result != null) {
                     results.add(result);
                 }
@@ -810,11 +967,51 @@
         } finally {
             rangeCursor.close();
         }
+        indexLifecycleManager.close(resourceID);
+    }
+
+    @Override
+    public void initializeDatasetIdFactory(JobId jobId) throws MetadataException, RemoteException {
+        int mostRecentDatasetId = MetadataPrimaryIndexes.FIRST_AVAILABLE_USER_DATASET_ID;
+        long resourceID = MetadataPrimaryIndexes.DATASET_DATASET.getResourceID();
+        IIndex indexInstance = indexLifecycleManager.getIndex(resourceID);
+        try {
+            indexLifecycleManager.open(resourceID);
+            IIndexAccessor indexAccessor = indexInstance.createAccessor(NoOpOperationCallback.INSTANCE,
+                    NoOpOperationCallback.INSTANCE);
+            IIndexCursor rangeCursor = indexAccessor.createSearchCursor();
+
+            DatasetTupleTranslator tupleReaderWriter = new DatasetTupleTranslator(false);
+            IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<Dataset>(tupleReaderWriter);
+            RangePredicate rangePred = new RangePredicate(null, null, true, true, null, null);
+
+            indexAccessor.search(rangeCursor, rangePred);
+            int datasetId;
+
+            try {
+                while (rangeCursor.hasNext()) {
+                    rangeCursor.next();
+                    datasetId = ((Dataset) valueExtractor.getValue(jobId, rangeCursor.getTuple())).getDatasetId();
+                    if (mostRecentDatasetId < datasetId) {
+                        mostRecentDatasetId = datasetId;
+                    }
+                }
+            } finally {
+                rangeCursor.close();
+            }
+
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+        DatasetIdFactory.initialize(mostRecentDatasetId);
     }
 
     // TODO: Can use Hyrack's TupleUtils for this, once we switch to a newer
     // Hyracks version.
     public ITupleReference createTuple(String... fields) throws HyracksDataException {
+        ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ASTRING);
         AMutableString aString = new AMutableString("");
         ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(fields.length);
         for (String s : fields) {
@@ -826,4 +1023,102 @@
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
         return tuple;
     }
+
+    @Override
+    public List<Function> getDataverseFunctions(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName);
+            FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(false);
+            IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<Function>(tupleReaderWriter);
+            List<Function> results = new ArrayList<Function>();
+            searchIndex(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET, searchKey, valueExtractor, results);
+            return results;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public void addAdapter(JobId jobId, DatasourceAdapter adapter) throws MetadataException, RemoteException {
+        try {
+            // Insert into the 'Adapter' dataset.
+            DatasourceAdapterTupleTranslator tupleReaderWriter = new DatasourceAdapterTupleTranslator(true);
+            ITupleReference adapterTuple = tupleReaderWriter.getTupleFromMetadataEntity(adapter);
+            insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, adapterTuple);
+
+        } catch (BTreeDuplicateKeyException e) {
+            throw new MetadataException("A adapter with this name " + adapter.getAdapterIdentifier().getAdapterName()
+                    + " already exists in dataverse '" + adapter.getAdapterIdentifier().getNamespace() + "'.", e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public void dropAdapter(JobId jobId, String dataverseName, String adapterName) throws MetadataException,
+            RemoteException {
+        DatasourceAdapter adapter;
+        try {
+            adapter = getAdapter(jobId, dataverseName, adapterName);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+        if (adapter == null) {
+            throw new MetadataException("Cannot drop adapter '" + adapter + "' because it doesn't exist.");
+        }
+        try {
+            // Delete entry from the 'Adapter' dataset.
+            ITupleReference searchKey = createTuple(dataverseName, adapterName);
+            // Searches the index for the tuple to be deleted. Acquires an S
+            // lock on the 'Adapter' dataset.
+            ITupleReference datasetTuple = getTupleToBeDeleted(jobId,
+                    MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, searchKey);
+            deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, datasetTuple);
+
+            // TODO: Change this to be a BTree specific exception, e.g.,
+            // BTreeKeyDoesNotExistException.
+        } catch (TreeIndexException e) {
+            throw new MetadataException("Cannot drop adapter '" + adapterName, e);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+
+    }
+
+    @Override
+    public DatasourceAdapter getAdapter(JobId jobId, String dataverseName, String adapterName)
+            throws MetadataException, RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName, adapterName);
+            DatasourceAdapterTupleTranslator tupleReaderWriter = new DatasourceAdapterTupleTranslator(false);
+            List<DatasourceAdapter> results = new ArrayList<DatasourceAdapter>();
+            IValueExtractor<DatasourceAdapter> valueExtractor = new MetadataEntityValueExtractor<DatasourceAdapter>(
+                    tupleReaderWriter);
+            searchIndex(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, searchKey, valueExtractor, results);
+            if (results.isEmpty()) {
+                return null;
+            }
+            return results.get(0);
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
+
+    @Override
+    public List<DatasourceAdapter> getDataverseAdapters(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName);
+            DatasourceAdapterTupleTranslator tupleReaderWriter = new DatasourceAdapterTupleTranslator(false);
+            IValueExtractor<DatasourceAdapter> valueExtractor = new MetadataEntityValueExtractor<DatasourceAdapter>(
+                    tupleReaderWriter);
+            List<DatasourceAdapter> results = new ArrayList<DatasourceAdapter>();
+            searchIndex(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, searchKey, valueExtractor, results);
+            return results;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
index e0aa69b..cbd37d6 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
@@ -17,11 +17,17 @@
 
 import java.util.ArrayList;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
+import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * Used to implement serializable transactions against the MetadataCache.
@@ -46,123 +52,152 @@
  */
 public class MetadataTransactionContext extends MetadataCache {
 
-	// Keeps track of deleted metadata entities.
-	// An entity can either be in the droppedCache or in the inherited members
-	// of MetadataCache (the "added" entities).
-	// The APIs in this class make sure that these two caches are kept in sync.
-	protected MetadataCache droppedCache = new MetadataCache();
+    // Keeps track of deleted metadata entities.
+    // An entity can either be in the droppedCache or in the inherited members
+    // of MetadataCache (the "added" entities).
+    // The APIs in this class make sure that these two caches are kept in sync.
+    protected MetadataCache droppedCache = new MetadataCache();
 
-	protected ArrayList<MetadataLogicalOperation> opLog = new ArrayList<MetadataLogicalOperation>();
-	private final long txnId;
+    protected ArrayList<MetadataLogicalOperation> opLog = new ArrayList<MetadataLogicalOperation>();
+    private final JobId jobId;
 
-	public MetadataTransactionContext(long txnId) {
-		this.txnId = txnId;
-	}
+    public MetadataTransactionContext(JobId jobId) {
+        this.jobId = jobId;
+    }
 
-	public long getTxnId() {
-		return txnId;
-	}
+    public JobId getJobId() {
+        return jobId;
+    }
 
-	public void addDataverse(Dataverse dataverse) {
-		droppedCache.dropDataverse(dataverse);
-		logAndApply(new MetadataLogicalOperation(dataverse, true));
-	}
+    public void addDataverse(Dataverse dataverse) {
+        droppedCache.dropDataverse(dataverse);
+        logAndApply(new MetadataLogicalOperation(dataverse, true));
+    }
 
-	public void addDataset(Dataset dataset) {
-		droppedCache.dropDataset(dataset);
-		logAndApply(new MetadataLogicalOperation(dataset, true));
-	}
+    public void addDataset(Dataset dataset) {
+        droppedCache.dropDataset(dataset);
+        logAndApply(new MetadataLogicalOperation(dataset, true));
+    }
 
-	public void addDatatype(Datatype datatype) {
-		droppedCache.dropDatatype(datatype);
-		logAndApply(new MetadataLogicalOperation(datatype, true));
-	}
+    public void addIndex(Index index) {
+        droppedCache.dropIndex(index);
+        logAndApply(new MetadataLogicalOperation(index, true));
+    }
 
-	public void addNogeGroup(NodeGroup nodeGroup) {
-		droppedCache.dropNodeGroup(nodeGroup);
-		logAndApply(new MetadataLogicalOperation(nodeGroup, true));
-	}
+    public void addDatatype(Datatype datatype) {
+        droppedCache.dropDatatype(datatype);
+        logAndApply(new MetadataLogicalOperation(datatype, true));
+    }
 
-	public void addFunction(Function function) {
-		droppedCache.dropFunction(function);
-		logAndApply(new MetadataLogicalOperation(function, true));
-	}
+    public void addNogeGroup(NodeGroup nodeGroup) {
+        droppedCache.dropNodeGroup(nodeGroup);
+        logAndApply(new MetadataLogicalOperation(nodeGroup, true));
+    }
 
-	public void dropDataverse(String dataverseName) {
-		Dataverse dataverse = new Dataverse(dataverseName, null);
-		droppedCache.addDataverseIfNotExists(dataverse);
-		logAndApply(new MetadataLogicalOperation(dataverse, false));
-	}
+    public void addFunction(Function function) {
+        droppedCache.dropFunction(function);
+        logAndApply(new MetadataLogicalOperation(function, true));
+    }
 
-	public void dropDataset(String dataverseName, String datasetName) {
-		Dataset dataset = new Dataset(dataverseName, datasetName, null, null,
-				null);
-		droppedCache.addDatasetIfNotExists(dataset);
-		logAndApply(new MetadataLogicalOperation(dataset, false));
-	}
+    public void addAdapter(DatasourceAdapter adapter) {
+        droppedCache.dropAdapter(adapter);
+        logAndApply(new MetadataLogicalOperation(adapter, true));
+    }
 
-	public void dropDataDatatype(String dataverseName, String datatypeName) {
-		Datatype datatype = new Datatype(dataverseName, datatypeName, null,
-				false);
-		droppedCache.addDatatypeIfNotExists(datatype);
-		logAndApply(new MetadataLogicalOperation(datatype, false));
-	}
+    public void dropDataset(String dataverseName, String datasetName) {
+        Dataset dataset = new Dataset(dataverseName, datasetName, null, null, null, null, -1,
+                IMetadataEntity.PENDING_NO_OP);
+        droppedCache.addDatasetIfNotExists(dataset);
+        logAndApply(new MetadataLogicalOperation(dataset, false));
+    }
 
-	public void dropNodeGroup(String nodeGroupName) {
-		NodeGroup nodeGroup = new NodeGroup(nodeGroupName, null);
-		droppedCache.addNodeGroupIfNotExists(nodeGroup);
-		logAndApply(new MetadataLogicalOperation(nodeGroup, false));
-	}
+    public void dropIndex(String dataverseName, String datasetName, String indexName) {
+        Index index = new Index(dataverseName, datasetName, indexName, null, null, false, IMetadataEntity.PENDING_NO_OP);
+        droppedCache.addIndexIfNotExists(index);
+        logAndApply(new MetadataLogicalOperation(index, false));
+    }
 
-	public void dropFunction(String dataverseName, String functionName,
-			int arity) {
-		Function function = new Function(dataverseName, functionName, arity,
-				null, null);
-		droppedCache.addFunctionIfNotExists(function);
-		logAndApply(new MetadataLogicalOperation(function, false));
-	}
+    public void dropDataverse(String dataverseName) {
+        Dataverse dataverse = new Dataverse(dataverseName, null, IMetadataEntity.PENDING_NO_OP);
+        droppedCache.addDataverseIfNotExists(dataverse);
+        logAndApply(new MetadataLogicalOperation(dataverse, false));
+    }
 
-	public void logAndApply(MetadataLogicalOperation op) {
-		opLog.add(op);
-		doOperation(op);
-	}
+    public void dropDataDatatype(String dataverseName, String datatypeName) {
+        Datatype datatype = new Datatype(dataverseName, datatypeName, null, false);
+        droppedCache.addDatatypeIfNotExists(datatype);
+        logAndApply(new MetadataLogicalOperation(datatype, false));
+    }
 
-	public boolean dataverseIsDropped(String dataverseName) {
-		return droppedCache.getDataverse(dataverseName) != null;
-	}
+    public void dropNodeGroup(String nodeGroupName) {
+        NodeGroup nodeGroup = new NodeGroup(nodeGroupName, null);
+        droppedCache.addNodeGroupIfNotExists(nodeGroup);
+        logAndApply(new MetadataLogicalOperation(nodeGroup, false));
+    }
 
-	public boolean datasetIsDropped(String dataverseName, String datasetName) {
-		if (droppedCache.getDataverse(dataverseName) != null) {
-			return true;
-		}
-		return droppedCache.getDataset(dataverseName, datasetName) != null;
-	}
+    public void dropFunction(FunctionSignature signature) {
+        Function function = new Function(signature.getNamespace(), signature.getName(), signature.getArity(), null,
+                null, null, null, null);
+        droppedCache.addFunctionIfNotExists(function);
+        logAndApply(new MetadataLogicalOperation(function, false));
+    }
 
-	public boolean datatypeIsDropped(String dataverseName, String datatypeName) {
-		if (droppedCache.getDataverse(dataverseName) != null) {
-			return true;
-		}
-		return droppedCache.getDatatype(dataverseName, datatypeName) != null;
-	}
+    public void dropAdapter(String dataverseName, String adapterName) {
+        AdapterIdentifier adapterIdentifier = new AdapterIdentifier(dataverseName, adapterName);
+        DatasourceAdapter adapter = new DatasourceAdapter(adapterIdentifier, null, null);
+        droppedCache.addAdapterIfNotExists(adapter);
+        logAndApply(new MetadataLogicalOperation(adapter, false));
+    }
 
-	public boolean nodeGroupIsDropped(String nodeGroup) {
-		return droppedCache.getNodeGroup(nodeGroup) != null;
-	}
+    public void logAndApply(MetadataLogicalOperation op) {
+        opLog.add(op);
+        doOperation(op);
+    }
 
+    public boolean dataverseIsDropped(String dataverseName) {
+        return droppedCache.getDataverse(dataverseName) != null;
+    }
 
-	public boolean functionIsDropped(String dataverseName, String functionName,
-			int arity) {
-		return droppedCache.getFunction(dataverseName, functionName, arity) != null;
-	}
-	
-	public ArrayList<MetadataLogicalOperation> getOpLog() {
-		return opLog;
-	}
+    public boolean datasetIsDropped(String dataverseName, String datasetName) {
+        if (droppedCache.getDataverse(dataverseName) != null) {
+            return true;
+        }
+        return droppedCache.getDataset(dataverseName, datasetName) != null;
+    }
 
-	@Override
-	public void clear() {
-		super.clear();
-		droppedCache.clear();
-		opLog.clear();
-	}
+    public boolean indexIsDropped(String dataverseName, String datasetName, String indexName) {
+        if (droppedCache.getDataverse(dataverseName) != null) {
+            return true;
+        }
+        if (droppedCache.getDataset(dataverseName, datasetName) != null) {
+            return true;
+        }
+        return droppedCache.getIndex(dataverseName, datasetName, indexName) != null;
+    }
+
+    public boolean datatypeIsDropped(String dataverseName, String datatypeName) {
+        if (droppedCache.getDataverse(dataverseName) != null) {
+            return true;
+        }
+        return droppedCache.getDatatype(dataverseName, datatypeName) != null;
+    }
+
+    public boolean nodeGroupIsDropped(String nodeGroup) {
+        return droppedCache.getNodeGroup(nodeGroup) != null;
+    }
+
+    public boolean functionIsDropped(FunctionSignature functionSignature) {
+        return droppedCache.getFunction(functionSignature) != null;
+    }
+
+    public ArrayList<MetadataLogicalOperation> getOpLog() {
+        return opLog;
+    }
+
+    @Override
+    public void clear() {
+        super.clear();
+        droppedCache.clear();
+        opLog.clear();
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IAsterixStateProxy.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IAsterixStateProxy.java
index 2b915d9..5f772c7 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IAsterixStateProxy.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IAsterixStateProxy.java
@@ -32,8 +32,4 @@
     public IMetadataNode getMetadataNode() throws RemoteException;
 
     public AsterixProperties getAsterixProperties() throws RemoteException;
-
-    public Object getAsterixNodeState(String nodeName) throws RemoteException;
-
-    public void setAsterixNodeState(String nodeName, Object ns) throws RemoteException;
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
index 847ec67..43f8dc4 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
@@ -20,6 +20,11 @@
 import edu.uci.ics.asterix.metadata.MetadataCache;
 
 public interface IMetadataEntity extends Serializable {
+    
+    public static final int PENDING_NO_OP = 0;
+    public static final int PENDING_ADD_OP = 1;
+    public static final int PENDING_DROP_OP = 2;
+    
     Object addToCache(MetadataCache cache);
 
     Object dropFromCache(MetadataCache cache);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntityTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntityTupleTranslator.java
index df61cd9..9c9d02b 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntityTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntityTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -50,5 +50,5 @@
      *            Metadata entity to be written into a tuple.
      * @throws IOException
      */
-    public ITupleReference getTupleFromMetadataEntity(T metadataEntity) throws IOException;
+    public ITupleReference getTupleFromMetadataEntity(T metadataEntity) throws MetadataException, IOException;
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
index c752f18..ca6ab08 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
@@ -18,12 +18,15 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.runtime.transaction.TreeLogger;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 
 /**
  * Descriptor interface for a primary or secondary index on metadata datasets.
@@ -45,6 +48,8 @@
 
     public ITypeTraits[] getTypeTraits();
 
+    public int[] getBloomFilterKeyFields();
+
     public RecordDescriptor getRecordDescriptor();
 
     public IBinaryComparatorFactory[] getKeyBinaryComparatorFactory();
@@ -57,13 +62,22 @@
 
     public ARecordType getPayloadRecordType();
 
-    public void setFileId(int fileId);
+    public void setFile(FileReference file);
 
-    public void initTreeLogger() throws ACIDException;
+    public FileReference getFile();
+
+    public void setFileId(int fileId);
 
     public int getFileId();
 
-    public byte[] getResourceId();
+    public void setResourceID(long resourceID);
 
-    public TreeLogger getTreeLogger();
+    public long getResourceID();
+
+    public DatasetId getDatasetId();
+
+    boolean isPrimaryIndex();
+
+    int[] getPrimaryKeyIndexes();
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
index adba1c2..fdf2d60 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
@@ -18,8 +18,10 @@
 import java.rmi.RemoteException;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
@@ -28,6 +30,7 @@
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * A metadata manager provides user access to Asterix metadata (e.g., types,
@@ -92,7 +95,7 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public void lock(MetadataTransactionContext ctx, int lockMode) throws ACIDException, RemoteException;
+    public void lock(MetadataTransactionContext ctx, byte lockMode) throws ACIDException, RemoteException;
 
     /**
      * Releases all locks on the metadata held by the given transaction id.
@@ -117,6 +120,16 @@
     public void addDataverse(MetadataTransactionContext ctx, Dataverse dataverse) throws MetadataException;
 
     /**
+     * Retrieves all dataverses
+     * 
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @return A list of dataverse instances.
+     * @throws MetadataException
+     */
+    List<Dataverse> getDataverses(MetadataTransactionContext ctx) throws MetadataException;
+    
+    /**
      * Retrieves a dataverse with given name.
      * 
      * @param ctx
@@ -166,7 +179,7 @@
      *             For example, if the dataset already exists.
      */
     public void addDataset(MetadataTransactionContext ctx, Dataset dataset) throws MetadataException;
-
+    
     /**
      * Retrieves a dataset within a given dataverse.
      * 
@@ -352,49 +365,92 @@
      *             For example, if the node already exists.
      */
     public void addNode(MetadataTransactionContext ctx, Node node) throws MetadataException;
-    
+
     /**
-	 * 
-	 * @param mdTxnCtx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param function
-	 *            An instance of type Function that represents the function
-	 *            being added
-	 * @throws MetadataException
-	 */
-	public void addFunction(MetadataTransactionContext mdTxnCtx,
-			Function function) throws MetadataException;
+     * @param mdTxnCtx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param function
+     *            An instance of type Function that represents the function
+     *            being added
+     * @throws MetadataException
+     */
+    public void addFunction(MetadataTransactionContext mdTxnCtx, Function function) throws MetadataException;
 
-	/**
-	 * 
-	 * @param ctx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param dataverseName
-	 *            the dataverse associated with the function being searched
-	 * @param functionName
-	 *            name of the function
-	 * @param arity
-	 *            arity of the function
-	 * @return
-	 * @throws MetadataException
-	 */
-	public Function getFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException;
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param functionSignature
+     *            the functions signature (unique to the function)
+     * @return
+     * @throws MetadataException
+     */
 
-	/**
-	 * 
-	 * @param ctx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param dataverseName
-	 *            the dataverse associated with the function being dropped
-	 * @param functionName
-	 *            name of the function
-	 * @param arity
-	 *            arity of the function
-	 * @throws MetadataException
-	 */
-	public void dropFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException;
+    public Function getFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param functionSignature
+     *            the functions signature (unique to the function)
+     * @throws MetadataException
+     */
+    public void dropFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException;
+
+    /**
+     * @param mdTxnCtx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param function
+     *            An instance of type Adapter that represents the adapter being
+     *            added
+     * @throws MetadataException
+     */
+    public void addAdapter(MetadataTransactionContext mdTxnCtx, DatasourceAdapter adapter) throws MetadataException;
+
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param dataverseName
+     *            the dataverse associated with the adapter being searched
+     * @param Name
+     *            name of the adapter
+     * @return
+     * @throws MetadataException
+     */
+    public DatasourceAdapter getAdapter(MetadataTransactionContext ctx, String dataverseName, String name)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param dataverseName
+     *            the dataverse associated with the adapter being dropped
+     * @param name
+     *            name of the adapter
+     * @throws MetadataException
+     */
+    public void dropAdapter(MetadataTransactionContext ctx, String dataverseName, String name) throws MetadataException;
+
+    /**
+     * @param ctx
+     * @param dataverseName
+     * @return
+     * @throws MetadataException
+     */
+    public List<Function> getDataverseFunctions(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException;
+
+	
+    public void initializeDatasetIdFactory(MetadataTransactionContext ctx) throws MetadataException;
+    
+    public void acquireWriteLatch();
+
+    public void releaseWriteLatch();
+
+    public void acquireReadLatch();
+
+    public void releaseReadLatch();
+
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
index 10555be..836d42f 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
@@ -20,7 +20,9 @@
 import java.rmi.RemoteException;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
@@ -29,6 +31,7 @@
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * A metadata node stores metadata in its local storage structures (currently
@@ -47,7 +50,7 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public void beginTransaction(long txnId) throws ACIDException, RemoteException;
+    public void beginTransaction(JobId jobId) throws ACIDException, RemoteException;
 
     /**
      * Commits a local transaction against the metadata.
@@ -55,7 +58,7 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public void commitTransaction(long txnId) throws ACIDException, RemoteException;
+    public void commitTransaction(JobId jobId) throws ACIDException, RemoteException;
 
     /**
      * Aborts a local transaction against the metadata.
@@ -63,7 +66,7 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public void abortTransaction(long txnId) throws ACIDException, RemoteException;
+    public void abortTransaction(JobId jobId) throws ACIDException, RemoteException;
 
     /**
      * Locally locks the entire metadata in given mode on behalf of given
@@ -72,7 +75,7 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public boolean lock(long txnId, int lockMode) throws ACIDException, RemoteException;
+    public void lock(JobId jobId, byte lockMode) throws ACIDException, RemoteException;
 
     /**
      * Releases all local locks of given transaction id.
@@ -80,13 +83,13 @@
      * @throws ACIDException
      * @throws RemoteException
      */
-    public boolean unlock(long txnId) throws ACIDException, RemoteException;
+    public void unlock(JobId jobId) throws ACIDException, RemoteException;
 
     /**
      * Inserts a new dataverse into the metadata, acquiring local locks on
      * behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverse
      *            Dataverse instance to be inserted.
@@ -94,13 +97,26 @@
      *             For example, if the dataverse already exists.
      * @throws RemoteException
      */
-    public void addDataverse(long txnId, Dataverse dataverse) throws MetadataException, RemoteException;
+    public void addDataverse(JobId jobId, Dataverse dataverse) throws MetadataException, RemoteException;
+
+    /**
+     * Retrieves all dataverses, acquiring local locks on behalf of
+     * the given transaction id.
+     * 
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @return A list of dataverse instances.
+     * @throws MetadataException
+     *             For example, if the dataverse does not exist.
+     * @throws RemoteException
+     */
+    public List<Dataverse> getDataverses(JobId jobId) throws MetadataException, RemoteException;
 
     /**
      * Retrieves a dataverse with given name, acquiring local locks on behalf of
      * the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of the dataverse to retrieve.
@@ -109,13 +125,13 @@
      *             For example, if the dataverse does not exist.
      * @throws RemoteException
      */
-    public Dataverse getDataverse(long txnId, String dataverseName) throws MetadataException, RemoteException;
+    public Dataverse getDataverse(JobId jobId, String dataverseName) throws MetadataException, RemoteException;
 
     /**
      * Retrieves all datasets belonging to the given dataverse, acquiring local
      * locks on behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of the dataverse of which to find all datasets.
@@ -123,7 +139,7 @@
      * @throws MetadataException
      *             For example, if the dataverse does not exist. RemoteException
      */
-    public List<Dataset> getDataverseDatasets(long txnId, String dataverseName) throws MetadataException,
+    public List<Dataset> getDataverseDatasets(JobId jobId, String dataverseName) throws MetadataException,
             RemoteException;
 
     /**
@@ -131,20 +147,20 @@
      * indexes, and types, acquiring local locks on behalf of the given
      * transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @return A list of dataset instances.
      * @throws MetadataException
      *             For example, if the dataverse does not exist.
      * @throws RemoteException
      */
-    public void dropDataverse(long txnId, String dataverseName) throws MetadataException, RemoteException;
+    public void dropDataverse(JobId jobId, String dataverseName) throws MetadataException, RemoteException;
 
     /**
      * Inserts a new dataset into the metadata, acquiring local locks on behalf
      * of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataset
      *            Dataset instance to be inserted.
@@ -152,13 +168,13 @@
      *             For example, if the dataset already exists.
      * @throws RemoteException
      */
-    public void addDataset(long txnId, Dataset dataset) throws MetadataException, RemoteException;
+    public void addDataset(JobId jobId, Dataset dataset) throws MetadataException, RemoteException;
 
     /**
      * Retrieves a dataset within a given dataverse, acquiring local locks on
      * behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Dataverse name to look for the dataset.
@@ -169,14 +185,14 @@
      *             For example, if the dataset does not exist.
      * @throws RemoteException
      */
-    public Dataset getDataset(long txnId, String dataverseName, String datasetName) throws MetadataException,
+    public Dataset getDataset(JobId jobId, String dataverseName, String datasetName) throws MetadataException,
             RemoteException;
 
     /**
      * Retrieves all indexes of a dataset, acquiring local locks on behalf of
      * the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of dataverse which holds the given dataset.
@@ -187,14 +203,14 @@
      *             For example, if the dataset and/or dataverse does not exist.
      * @throws RemoteException
      */
-    public List<Index> getDatasetIndexes(long txnId, String dataverseName, String datasetName)
+    public List<Index> getDatasetIndexes(JobId jobId, String dataverseName, String datasetName)
             throws MetadataException, RemoteException;
 
     /**
      * Deletes the dataset with given name, and all it's associated indexes,
      * acquiring local locks on behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of dataverse which holds the given dataset.
@@ -204,7 +220,7 @@
      *             For example, if the dataset and/or dataverse does not exist.
      * @throws RemoteException
      */
-    public void dropDataset(long txnId, String dataverseName, String datasetName) throws MetadataException,
+    public void dropDataset(JobId jobId, String dataverseName, String datasetName) throws MetadataException,
             RemoteException;
 
     /**
@@ -212,7 +228,7 @@
      * the given transaction id. The index itself knows its name, and which
      * dataset it belongs to.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param index
      *            Index instance to be inserted.
@@ -220,13 +236,13 @@
      *             For example, if the index already exists.
      * @throws RemoteException
      */
-    public void addIndex(long txnId, Index index) throws MetadataException, RemoteException;
+    public void addIndex(JobId jobId, Index index) throws MetadataException, RemoteException;
 
     /**
      * Retrieves the index with given name, in given dataverse and dataset,
      * acquiring local locks on behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of the datavers holding the given dataset.
@@ -238,14 +254,14 @@
      *             For example, if the index does not exist.
      * @throws RemoteException
      */
-    public Index getIndex(long txnId, String dataverseName, String datasetName, String indexName)
+    public Index getIndex(JobId jobId, String dataverseName, String datasetName, String indexName)
             throws MetadataException, RemoteException;
 
     /**
      * Deletes the index with given name, in given dataverse and dataset,
      * acquiring local locks on behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of the datavers holding the given dataset.
@@ -256,14 +272,14 @@
      *             For example, if the index does not exist.
      * @throws RemoteException
      */
-    public void dropIndex(long txnId, String dataverseName, String datasetName, String indexName)
+    public void dropIndex(JobId jobId, String dataverseName, String datasetName, String indexName)
             throws MetadataException, RemoteException;
 
     /**
      * Inserts a datatype, acquiring local locks on behalf of the given
      * transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param datatype
      *            Datatype instance to be inserted.
@@ -271,13 +287,13 @@
      *             For example, if the datatype already exists.
      * @throws RemoteException
      */
-    public void addDatatype(long txnId, Datatype datatype) throws MetadataException, RemoteException;
+    public void addDatatype(JobId jobId, Datatype datatype) throws MetadataException, RemoteException;
 
     /**
      * Retrieves the datatype with given name in given dataverse, acquiring
      * local locks on behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of dataverse holding the datatype.
@@ -288,14 +304,14 @@
      *             For example, if the datatype does not exist.
      * @throws RemoteException
      */
-    public Datatype getDatatype(long txnId, String dataverseName, String datatypeName) throws MetadataException,
+    public Datatype getDatatype(JobId jobId, String dataverseName, String datatypeName) throws MetadataException,
             RemoteException;
 
     /**
      * Deletes the given datatype in given dataverse, acquiring local locks on
      * behalf of the given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param dataverseName
      *            Name of dataverse holding the datatype.
@@ -306,14 +322,14 @@
      *             deleted.
      * @throws RemoteException
      */
-    public void dropDatatype(long txnId, String dataverseName, String datatypeName) throws MetadataException,
+    public void dropDatatype(JobId jobId, String dataverseName, String datatypeName) throws MetadataException,
             RemoteException;
 
     /**
      * Inserts a node group, acquiring local locks on behalf of the given
      * transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param nodeGroup
      *            Node group instance to insert.
@@ -321,13 +337,13 @@
      *             For example, if the node group already exists.
      * @throws RemoteException
      */
-    public void addNodeGroup(long txnId, NodeGroup nodeGroup) throws MetadataException, RemoteException;
+    public void addNodeGroup(JobId jobId, NodeGroup nodeGroup) throws MetadataException, RemoteException;
 
     /**
      * Retrieves a node group, acquiring local locks on behalf of the given
      * transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param nodeGroupName
      *            Name of node group to be retrieved.
@@ -335,13 +351,13 @@
      *             For example, if the node group does not exist.
      * @throws RemoteException
      */
-    public NodeGroup getNodeGroup(long txnId, String nodeGroupName) throws MetadataException, RemoteException;
+    public NodeGroup getNodeGroup(JobId jobId, String nodeGroupName) throws MetadataException, RemoteException;
 
     /**
      * Deletes a node group, acquiring local locks on behalf of the given
      * transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param nodeGroupName
      *            Name of node group to be deleted.
@@ -350,13 +366,13 @@
      *             group to be deleted.
      * @throws RemoteException
      */
-    public void dropNodegroup(long txnId, String nodeGroupName) throws MetadataException, RemoteException;
+    public void dropNodegroup(JobId jobId, String nodeGroupName) throws MetadataException, RemoteException;
 
     /**
      * Inserts a node (compute node), acquiring local locks on behalf of the
      * given transaction id.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique id for an active metadata transaction.
      * @param node
      *            Node instance to be inserted.
@@ -364,58 +380,98 @@
      *             For example, if the node already exists.
      * @throws RemoteException
      */
-    public void addNode(long txnId, Node node) throws MetadataException, RemoteException;
-    
+    public void addNode(JobId jobId, Node node) throws MetadataException, RemoteException;
+
     /**
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param dataverseName
-	 *            dataverse asociated with the function that is to be deleted.
-	 * @param functionName
-	 *            Name of function to be deleted.
-	 * @param arity
-	 *            Arity of the function to be deleted
-	 * @return
-	 * @throws MetadataException
-	 * @throws RemoteException
-	 */
-	public Function getFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException;
 
-	/**
-	 * Deletes a function , acquiring local locks on behalf of the given
-	 * transaction id.
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param dataverseName
-	 *            dataverse asociated with the function that is to be deleted.
-	 * @param functionName
-	 *            Name of function to be deleted.
-	 * @param arity
-	 *            Arity of the function to be deleted
-	 * @throws MetadataException
-	 *             For example, there are still datasets partitioned on the node
-	 *             group to be deleted.
-	 * @throws RemoteException
-	 */
-	public void dropFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException;
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param functionSignature
+     *            An instance of functionSignature representing the function
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public Function getFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException,
+            RemoteException;
 
-	/**
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param function
-	 *            Function to be inserted
-	 * @throws MetadataException
-	 *             for example, if the function already exists or refers to an
-	 *             unknown function
-	 * @throws RemoteException
-	 */
-	public void addFunction(long txnId, Function function)
-			throws MetadataException, RemoteException;
+    /**
+     * Deletes a function, acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param functionSignature
+     *            An instance of functionSignature representing the function
+     * @throws MetadataException
+     *             For example, there are still datasets partitioned on the node
+     *             group to be deleted.
+     * @throws RemoteException
+     */
+    public void dropFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException, RemoteException;
+
+    /**
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param function
+     *            Function to be inserted
+     * @throws MetadataException
+     *             for example, if the function already exists or refers to an
+     *             unknown function
+     * @throws RemoteException
+     */
+    public void addFunction(JobId jobId, Function function) throws MetadataException, RemoteException;
+
+    /**
+     * @param ctx
+     * @param dataverseName
+     * @return List<Function> A list containing the functions in the specified dataverse
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<Function> getDataverseFunctions(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException;
+
+    /**
+     * @param ctx
+     * @param dataverseName
+     * @return List<Adapter> A list containing the adapters in the specified dataverse
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<DatasourceAdapter> getDataverseAdapters(JobId jobId, String dataverseName) throws MetadataException,
+            RemoteException;
+
+    public DatasourceAdapter getAdapter(JobId jobId, String dataverseName, String adapterName) throws MetadataException,
+            RemoteException;
+
+    /**
+     * Deletes a adapter , acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param dataverseName
+     *            dataverse asociated with the adapter that is to be deleted.
+     * @param adapterName
+     *            Name of adapter to be deleted. MetadataException for example,
+     *            if the adapter does not exists.
+     * @throws RemoteException
+     */
+    public void dropAdapter(JobId jobId, String dataverseName, String adapterName) throws MetadataException,
+            RemoteException;
+
+    /**
+     * @param jobId
+     *            A globally unique id for an active metadata transaction.
+     * @param adapter
+     *            Adapter to be inserted
+     * @throws MetadataException
+     *             for example, if the adapter already exists.
+     * @throws RemoteException
+     */
+    public void addAdapter(JobId jobId, DatasourceAdapter adapter) throws MetadataException, RemoteException;
+
+    public void initializeDatasetIdFactory(JobId jobId) throws MetadataException, RemoteException;
+
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
index aec55b5..d8958dd 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
@@ -18,6 +18,7 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -32,7 +33,7 @@
     /**
      * Extracts an object of type T from a given tuple.
      * 
-     * @param txnId
+     * @param jobId
      *            A globally unique transaction id.
      * @param tuple
      *            Tuple from which an object shall be extracted.
@@ -41,5 +42,5 @@
      * @throws HyracksDataException
      * @throws IOException
      */
-    public T getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException, IOException;
+    public T getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException, IOException;
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixProperties.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixProperties.java
index 79d6fa7..71a7de3 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixProperties.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixProperties.java
@@ -15,6 +15,7 @@
 
 package edu.uci.ics.asterix.metadata.bootstrap;
 
+import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -27,7 +28,7 @@
 import java.util.Properties;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 /**
  * Holder for Asterix properties values typically set as Java Properties.
@@ -96,6 +97,19 @@
                 String ncName = pn.substring(0, pn.indexOf('.'));
                 val = p.getProperty(pn);
                 String[] folderNames = val.split("\\s*,\\s*");
+                int i = 0;
+                for (String store : folderNames) {
+                    boolean needsStartSep = !store.startsWith(File.separator);
+                    boolean needsEndSep = !store.endsWith(File.separator);
+                    if (needsStartSep && needsEndSep) {
+                        folderNames[i] = File.separator + store + File.separator;
+                    } else if (needsStartSep) {
+                        folderNames[i] = File.separator + store;
+                    } else if (needsEndSep) {
+                        folderNames[i] = store + File.separator;
+                    }
+                    i++;
+                }
                 stores.put(ncName, folderNames);
                 nodeNames = new HashSet<String>();
                 nodeNames.addAll(stores.keySet());
@@ -127,7 +141,7 @@
         return nodeNames;
     }
 
-    public  String getOutputDir() {
+    public String getOutputDir() {
         return outputDir;
     }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixStateProxy.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixStateProxy.java
index c7ed82e..3946fa6 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixStateProxy.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/AsterixStateProxy.java
@@ -17,7 +17,6 @@
 
 import java.rmi.RemoteException;
 import java.rmi.server.UnicastRemoteObject;
-import java.util.HashMap;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
@@ -33,7 +32,6 @@
     private IMetadataNode metadataNode;
     private AsterixProperties asterixProperties;
     private static final IAsterixStateProxy cc = new AsterixStateProxy();
-    private final HashMap<String, Object> nodeStateMap = new HashMap<String, Object>();
 
     public static IAsterixStateProxy registerRemoteObject() throws RemoteException {
         IAsterixStateProxy stub = (IAsterixStateProxy) UnicastRemoteObject.exportObject(cc, 0);
@@ -41,7 +39,7 @@
         return stub;
     }
 
-    public static void deRegisterRemoteObject() throws RemoteException {
+    public static void unregisterRemoteObject() throws RemoteException {
         UnicastRemoteObject.unexportObject(cc, true);
         LOGGER.info("Asterix Distributed State Proxy Unbound");
     }
@@ -65,14 +63,4 @@
     public AsterixProperties getAsterixProperties() throws RemoteException {
         return this.asterixProperties;
     }
-
-    @Override
-    synchronized public Object getAsterixNodeState(String nodeName) throws RemoteException {
-        return nodeStateMap.get(nodeName);
-    }
-
-    @Override
-    synchronized public void setAsterixNodeState(String nodeName, Object ns) throws RemoteException {
-        nodeStateMap.put(nodeName, ns);
-    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
index 29df060..805a550 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
@@ -16,8 +16,10 @@
 package edu.uci.ics.asterix.metadata.bootstrap;
 
 import java.io.File;
+import java.rmi.RemoteException;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
@@ -25,13 +27,20 @@
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
-import edu.uci.ics.asterix.dataflow.base.IAsterixApplicationContextInfo;
+import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
+import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
 import edu.uci.ics.asterix.metadata.api.IMetadataIndex;
 import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Index;
@@ -42,31 +51,38 @@
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.transaction.TreeResourceManager;
+import edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
+import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceManagerRepository;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
+import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexRegistry;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.freepage.LinkedListFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
-import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTree;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
 
 /**
  * Initializes the remote metadata storage facilities ("universe") using a
@@ -78,18 +94,23 @@
  * stopUniverse() should be called upon application undeployment.
  */
 public class MetadataBootstrap {
+    private static final Logger LOGGER = Logger.getLogger(MetadataBootstrap.class.getName());
+    private static final int DEFAULT_MEM_PAGE_SIZE = 32768;
+    private static final int DEFAULT_MEM_NUM_PAGES = 100;
+
+    private static AsterixAppRuntimeContext runtimeContext;
 
     private static IBufferCache bufferCache;
     private static IFileMapProvider fileMapProvider;
-    private static IndexRegistry<IIndex> btreeRegistry;
+    private static IIndexLifecycleManager indexLifecycleManager;
+    private static ILocalResourceRepository localResourceRepository;
+    private static IIOManager ioManager;
 
     private static String metadataNodeName;
     private static String metadataStore;
     private static HashSet<String> nodeNames;
     private static String outputDir;
 
-    private static final Logger LOGGER = Logger.getLogger(MetadataBootstrap.class.getName());
-
     private static IMetadataIndex[] primaryIndexes;
     private static IMetadataIndex[] secondaryIndexes;
 
@@ -97,14 +118,16 @@
         primaryIndexes = new IMetadataIndex[] { MetadataPrimaryIndexes.DATAVERSE_DATASET,
                 MetadataPrimaryIndexes.DATASET_DATASET, MetadataPrimaryIndexes.DATATYPE_DATASET,
                 MetadataPrimaryIndexes.INDEX_DATASET, MetadataPrimaryIndexes.NODE_DATASET,
-                MetadataPrimaryIndexes.NODEGROUP_DATASET, MetadataPrimaryIndexes.FUNCTION_DATASET };
+                MetadataPrimaryIndexes.NODEGROUP_DATASET, MetadataPrimaryIndexes.FUNCTION_DATASET,
+                MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET };
         secondaryIndexes = new IMetadataIndex[] { MetadataSecondaryIndexes.GROUPNAME_ON_DATASET_INDEX,
                 MetadataSecondaryIndexes.DATATYPENAME_ON_DATASET_INDEX,
                 MetadataSecondaryIndexes.DATATYPENAME_ON_DATATYPE_INDEX };
     }
 
-    public static void startUniverse(AsterixProperties asterixProperities, IAsterixApplicationContextInfo appContext)
+    public static void startUniverse(AsterixProperties asterixProperties, INCApplicationContext ncApplicationContext, boolean isNewUniverse)
             throws Exception {
+        runtimeContext = (AsterixAppRuntimeContext) ncApplicationContext.getApplicationObject();
 
         // Initialize static metadata objects, such as record types and metadata
         // index descriptors.
@@ -115,47 +138,43 @@
         MetadataSecondaryIndexes.init();
         initLocalIndexArrays();
 
-        boolean isNewUniverse = true;
-        TransactionalResourceRepository.registerTransactionalResourceManager(TreeResourceManager.ID,
-                TreeResourceManager.getInstance());
+        TransactionalResourceManagerRepository resourceRepository = runtimeContext.getTransactionSubsystem()
+                .getTransactionalResourceRepository();
+        resourceRepository.registerTransactionalResourceManager(ResourceType.LSM_BTREE, new IndexResourceManager(
+                ResourceType.LSM_BTREE, runtimeContext.getTransactionSubsystem()));
+        resourceRepository.registerTransactionalResourceManager(ResourceType.LSM_RTREE, new IndexResourceManager(
+                ResourceType.LSM_RTREE, runtimeContext.getTransactionSubsystem()));
+        resourceRepository.registerTransactionalResourceManager(ResourceType.LSM_INVERTED_INDEX,
+                new IndexResourceManager(ResourceType.LSM_INVERTED_INDEX, runtimeContext.getTransactionSubsystem()));
 
-        metadataNodeName = asterixProperities.getMetadataNodeName();
-        isNewUniverse = asterixProperities.isNewUniverse();
-        metadataStore = asterixProperities.getMetadataStore();
-        nodeNames = asterixProperities.getNodeNames();
+        metadataNodeName = asterixProperties.getMetadataNodeName();
+        metadataStore = asterixProperties.getMetadataStore();
+        nodeNames = asterixProperties.getNodeNames();
         // nodeStores = asterixProperity.getStores();
 
-        outputDir = asterixProperities.getOutputDir();
+        outputDir = asterixProperties.getOutputDir();
         if (outputDir != null) {
             (new File(outputDir)).mkdirs();
         }
 
-        btreeRegistry = appContext.getTreeRegisterProvider().getRegistry(null);
-        bufferCache = appContext.getStorageManagerInterface().getBufferCache(null);
-        fileMapProvider = appContext.getStorageManagerInterface().getFileMapProvider(null);
+        indexLifecycleManager = runtimeContext.getIndexLifecycleManager();
+        localResourceRepository = runtimeContext.getLocalResourceRepository();
+        bufferCache = runtimeContext.getBufferCache();
+        fileMapProvider = runtimeContext.getFileMapManager();
+        ioManager = ncApplicationContext.getRootContext().getIOManager();
 
-        // Create fileRefs to all BTree files and open them in BufferCache.
-        for (int i = 0; i < primaryIndexes.length; i++) {
-            openIndexFile(primaryIndexes[i]);
-        }
-        for (int i = 0; i < secondaryIndexes.length; i++) {
-            openIndexFile(secondaryIndexes[i]);
-        }
+        if (isNewUniverse) {
+            MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+            try {
+                // Begin a transaction against the metadata.
+                // Lock the metadata in X mode.
+                MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.X);
 
-        // Begin a transaction against the metadata.
-        // Lock the metadata in X mode.
-        MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
-        MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.EXCLUSIVE);
-
-        try {
-            if (isNewUniverse) {
                 for (int i = 0; i < primaryIndexes.length; i++) {
-                    createIndex(primaryIndexes[i]);
-                    registerTransactionalResource(primaryIndexes[i]);
+                    enlistMetadataDataset(primaryIndexes[i], true);
                 }
                 for (int i = 0; i < secondaryIndexes.length; i++) {
-                    createIndex(secondaryIndexes[i]);
-                    registerTransactionalResource(secondaryIndexes[i]);
+                    enlistMetadataDataset(secondaryIndexes[i], true);
                 }
                 insertInitialDataverses(mdTxnCtx);
                 insertInitialDatasets(mdTxnCtx);
@@ -163,71 +182,48 @@
                 insertInitialIndexes(mdTxnCtx);
                 insertNodes(mdTxnCtx);
                 insertInitialGroups(mdTxnCtx);
-                LOGGER.info("FINISHED CREATING METADATA B-TREES.");
-            } else {
-                for (int i = 0; i < primaryIndexes.length; i++) {
-                    enlistMetadataDataset(primaryIndexes[i]);
-                    registerTransactionalResource(primaryIndexes[i]);
-                }
-                for (int i = 0; i < secondaryIndexes.length; i++) {
-                    enlistMetadataDataset(secondaryIndexes[i]);
-                    registerTransactionalResource(secondaryIndexes[i]);
-                }
-                LOGGER.info("FINISHED ENLISTMENT OF METADATA B-TREES.");
+                insertInitialAdapters(mdTxnCtx);
+
+                MetadataManager.INSTANCE.initializeDatasetIdFactory(mdTxnCtx);
+                MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
+            } catch (Exception e) {
+                MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+                throw e;
             }
-            MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-        } catch (Exception e) {
-            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            throw e;
+            LOGGER.info("FINISHED CREATING METADATA B-TREES.");
+        } else {
+            for (int i = 0; i < primaryIndexes.length; i++) {
+                enlistMetadataDataset(primaryIndexes[i], false);
+            }
+            for (int i = 0; i < secondaryIndexes.length; i++) {
+                enlistMetadataDataset(secondaryIndexes[i], false);
+            }
+            LOGGER.info("FINISHED ENLISTMENT OF METADATA B-TREES.");
         }
+
     }
 
     public static void stopUniverse() throws HyracksDataException {
-        try {
-            // Close all BTree files in BufferCache.
-            for (int i = 0; i < primaryIndexes.length; i++) {
-                bufferCache.closeFile(primaryIndexes[i].getFileId());
-            }
-            for (int i = 0; i < secondaryIndexes.length; i++) {
-                bufferCache.closeFile(secondaryIndexes[i].getFileId());
-            }
-        } catch (HyracksDataException e) {
-            // Ignore for now.
-            // TODO: If multiple NCs are running in the same VM, then we could
-            // have multiple NCs undeploying asterix concurrently.
-            // It would also mean that there is only one BufferCache. A
-            // pathological sequence of events would be that NC2
-            // closes the BufferCache and then NC1 enters this portion of the
-            // code and tries to close unopened files.
-            // What we really want is to check whether the BufferCache is open
-            // in a synchronized block.
-            // The BufferCache api currently does not allow us to check for
-            // openness.
-            // Swallowing the exceptions is a simple fix for now.
+        // Close all BTree files in BufferCache.
+        for (int i = 0; i < primaryIndexes.length; i++) {
+            long resourceID = localResourceRepository
+                    .getResourceByName(primaryIndexes[i].getFile().getFile().getPath()).getResourceId();
+            indexLifecycleManager.close(resourceID);
+            indexLifecycleManager.unregister(resourceID);
         }
-    }
-
-    private static void openIndexFile(IMetadataIndex index) throws HyracksDataException, ACIDException {
-        String filePath = metadataStore + index.getFileNameRelativePath();
-        FileReference file = new FileReference(new File(filePath));
-        bufferCache.createFile(file);
-        int fileId = fileMapProvider.lookupFileId(file);
-        bufferCache.openFile(fileId);
-        index.setFileId(fileId);
-    }
-
-    private static void registerTransactionalResource(IMetadataIndex index) throws ACIDException {
-        int fileId = index.getFileId();
-        ITreeIndex treeIndex = (ITreeIndex) btreeRegistry.get(fileId);
-        byte[] resourceId = DataUtil.intToByteArray(fileId);
-        TransactionalResourceRepository.registerTransactionalResource(resourceId, treeIndex);
-        index.initTreeLogger();
+        for (int i = 0; i < secondaryIndexes.length; i++) {
+            long resourceID = localResourceRepository.getResourceByName(
+                    secondaryIndexes[i].getFile().getFile().getPath()).getResourceId();
+            indexLifecycleManager.close(resourceID);
+            indexLifecycleManager.unregister(resourceID);
+        }
     }
 
     public static void insertInitialDataverses(MetadataTransactionContext mdTxnCtx) throws Exception {
         String dataverseName = MetadataPrimaryIndexes.DATAVERSE_DATASET.getDataverseName();
-        String dataFormat = "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat";
-        MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dataverseName, dataFormat));
+        String dataFormat = NonTaggedDataFormat.NON_TAGGED_DATA_FORMAT;
+        MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dataverseName, dataFormat,
+                IMetadataEntity.PENDING_NO_OP));
     }
 
     public static void insertInitialDatasets(MetadataTransactionContext mdTxnCtx) throws Exception {
@@ -237,7 +233,7 @@
                     primaryIndexes[i].getNodeGroupName());
             MetadataManager.INSTANCE.addDataset(mdTxnCtx, new Dataset(primaryIndexes[i].getDataverseName(),
                     primaryIndexes[i].getIndexedDatasetName(), primaryIndexes[i].getPayloadRecordType().getTypeName(),
-                    id, DatasetType.INTERNAL));
+                    id, new HashMap<String,String>(), DatasetType.INTERNAL, primaryIndexes[i].getDatasetId().getId(), IMetadataEntity.PENDING_NO_OP));
         }
     }
 
@@ -268,7 +264,7 @@
         for (int i = 0; i < secondaryIndexes.length; i++) {
             MetadataManager.INSTANCE.addIndex(mdTxnCtx, new Index(secondaryIndexes[i].getDataverseName(),
                     secondaryIndexes[i].getIndexedDatasetName(), secondaryIndexes[i].getIndexName(), IndexType.BTREE,
-                    secondaryIndexes[i].getPartitioningExpr(), false));
+                    secondaryIndexes[i].getPartitioningExpr(), false, IMetadataEntity.PENDING_NO_OP));
         }
     }
 
@@ -300,55 +296,76 @@
 
     }
 
-    public static void createIndex(IMetadataIndex dataset) throws Exception {
-        int fileId = dataset.getFileId();
-        int numberOfKeyField = dataset.getKeyFieldCount();
-        ITypeTraits[] typeTraits = dataset.getTypeTraits();
-        IBinaryComparatorFactory[] comparatorFactories = dataset.getKeyBinaryComparatorFactory();
-
-        IBinaryComparator[] cmps = new IBinaryComparator[numberOfKeyField];
-        for (int i = 0; i < numberOfKeyField; i++)
-            cmps[i] = comparatorFactories[i].createBinaryComparator();
-
-        MultiComparator cmp = new MultiComparator(cmps);
-        TypeAwareTupleWriterFactory tupleWriterFactory = new TypeAwareTupleWriterFactory(typeTraits);
-
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(tupleWriterFactory);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(tupleWriterFactory);
-        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-        IFreePageManager freePageManager = new LinkedListFreePageManager(bufferCache, fileId, 0, metaDataFrameFactory);
-        BTree btree = new BTree(bufferCache, typeTraits.length, cmp, freePageManager, interiorFrameFactory,
-                leafFrameFactory);
-        btree.create(fileId);
-        btreeRegistry.register(fileId, btree);
+    private static void insertInitialAdapters(MetadataTransactionContext mdTxnCtx) throws Exception {
+        String[] builtInAdapterClassNames = new String[] {
+                "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory",
+                "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory",
+                "edu.uci.ics.asterix.external.adapter.factory.HiveAdapterFactory",
+                "edu.uci.ics.asterix.external.adapter.factory.PullBasedTwitterAdapterFactory",
+                "edu.uci.ics.asterix.external.adapter.factory.RSSFeedAdapterFactory",
+                "edu.uci.ics.asterix.external.adapter.factory.CNNFeedAdapterFactory", };
+        DatasourceAdapter adapter;
+        for (String adapterClassName : builtInAdapterClassNames) {
+            adapter = getAdapter(adapterClassName);
+            MetadataManager.INSTANCE.addAdapter(mdTxnCtx, adapter);
+        }
     }
 
-    public static void enlistMetadataDataset(IMetadataIndex dataset) throws Exception {
-
-        int fileId = dataset.getFileId();
-        int numberOfKeyField = dataset.getKeyFieldCount();
-        ITypeTraits[] typeTraits = dataset.getTypeTraits();
-        IBinaryComparatorFactory[] comparatorFactories = dataset.getKeyBinaryComparatorFactory();
-
-        IBinaryComparator[] cmps = new IBinaryComparator[numberOfKeyField];
-        for (int i = 0; i < numberOfKeyField; i++)
-            cmps[i] = comparatorFactories[i].createBinaryComparator();
-
-        MultiComparator cmp = new MultiComparator(cmps);
-        TypeAwareTupleWriterFactory tupleWriterFactory = new TypeAwareTupleWriterFactory(typeTraits);
-
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(tupleWriterFactory);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(tupleWriterFactory);
-
-        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-        IFreePageManager freePageManager = new LinkedListFreePageManager(bufferCache, fileId, 0, metaDataFrameFactory);
-
-        BTree btree = new BTree(bufferCache, typeTraits.length, cmp, freePageManager, interiorFrameFactory,
-                leafFrameFactory);
-
-        btreeRegistry.register(fileId, btree);
+    private static DatasourceAdapter getAdapter(String adapterFactoryClassName) throws Exception {
+        String adapterName = ((IAdapterFactory) (Class.forName(adapterFactoryClassName).newInstance())).getName();
+        return new DatasourceAdapter(new AdapterIdentifier(MetadataConstants.METADATA_DATAVERSE_NAME, adapterName),
+                adapterFactoryClassName, DatasourceAdapter.AdapterType.INTERNAL);
     }
 
+    public static void enlistMetadataDataset(IMetadataIndex index, boolean create) throws Exception {
+        String filePath = metadataStore + index.getFileNameRelativePath();
+        FileReference file = new FileReference(new File(filePath));
+        IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), DEFAULT_MEM_PAGE_SIZE,
+                DEFAULT_MEM_NUM_PAGES, new TransientFileMapManager());
+        ITypeTraits[] typeTraits = index.getTypeTraits();
+        IBinaryComparatorFactory[] comparatorFactories = index.getKeyBinaryComparatorFactory();
+        int[] bloomFilterKeyFields = index.getBloomFilterKeyFields();
+        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
+        IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(DEFAULT_MEM_NUM_PAGES,
+                metaDataFrameFactory);
+        LSMBTree lsmBtree = null;
+        long resourceID = -1;
+        if (create) {
+            lsmBtree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file,
+                    bufferCache, fileMapProvider, typeTraits, comparatorFactories, bloomFilterKeyFields,
+                    runtimeContext.getLSMMergePolicy(), runtimeContext.getLSMBTreeOperationTrackerFactory(),
+                    runtimeContext.getLSMIOScheduler(), AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER);
+            lsmBtree.create();
+            resourceID = runtimeContext.getResourceIdFactory().createId();
+            indexLifecycleManager.register(resourceID, lsmBtree);
+
+            ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
+                    comparatorFactories, bloomFilterKeyFields, index.isPrimaryIndex(),
+                    GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES);
+            ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
+                    localResourceMetadata, LocalResource.LSMBTreeResource);
+            ILocalResourceFactory localResourceFactory = localResourceFactoryProvider.getLocalResourceFactory();
+            localResourceRepository.insert(localResourceFactory.createLocalResource(resourceID, file.getFile()
+                    .getPath(), 0));
+        } else {
+            resourceID = localResourceRepository.getResourceByName(file.getFile().getPath()).getResourceId();
+            lsmBtree = (LSMBTree) indexLifecycleManager.getIndex(resourceID);
+            if (lsmBtree == null) {
+                lsmBtree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file,
+                        bufferCache, fileMapProvider, typeTraits, comparatorFactories, bloomFilterKeyFields,
+                        runtimeContext.getLSMMergePolicy(), runtimeContext.getLSMBTreeOperationTrackerFactory(),
+                        runtimeContext.getLSMIOScheduler(), AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER);
+                indexLifecycleManager.register(resourceID, lsmBtree);
+            }
+        }
+        
+        index.setResourceID(resourceID);
+        index.setFile(file);
+        indexLifecycleManager.open(resourceID);
+    }
+    
+    
+
     public static String getOutputDir() {
         return outputDir;
     }
@@ -357,4 +374,51 @@
         return metadataNodeName;
     }
 
+    public static void startDDLRecovery() throws RemoteException, ACIDException, MetadataException {
+        //#. clean up any record which has pendingAdd/DelOp flag 
+        //   as traversing all records from DATAVERSE_DATASET to DATASET_DATASET, and then to INDEX_DATASET.
+        String dataverseName = null;
+        String datasetName = null;
+        String indexName = null;
+        MetadataTransactionContext mdTxnCtx = null;
+        
+        MetadataManager.INSTANCE.acquireWriteLatch();
+        
+        try {
+            mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
+
+            List<Dataverse> dataverses = MetadataManager.INSTANCE.getDataverses(mdTxnCtx);
+            for (Dataverse dataverse : dataverses) {
+                dataverseName = dataverse.getDataverseName();
+                if (dataverse.getPendingOp() != IMetadataEntity.PENDING_NO_OP) {
+                    //drop pending dataverse
+                    MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dataverseName);
+                } else {
+                    List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dataverseName);
+                    for (Dataset dataset : datasets) {
+                        datasetName = dataset.getDatasetName();
+                        if (dataset.getPendingOp() != IMetadataEntity.PENDING_NO_OP) {
+                            //drop pending dataset
+                            MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName);
+                        } else {
+                            List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName,
+                                    datasetName);
+                            for (Index index : indexes) {
+                                indexName = index.getIndexName();
+                                if (index.getPendingOp() != IMetadataEntity.PENDING_NO_OP) {
+                                    //drop pending index
+                                    MetadataManager.INSTANCE.dropIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
+            throw new MetadataException(e);
+        } finally {
+            MetadataManager.INSTANCE.releaseWriteLatch();
+        }
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
index e74a022..c0ce030 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
@@ -27,15 +27,17 @@
 import edu.uci.ics.asterix.metadata.api.IMetadataIndex;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.runtime.transaction.TreeLogger;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 
 /**
  * Descriptor for a primary or secondary index on metadata datasets.
@@ -51,6 +53,8 @@
     protected final String[] keyNames;
     // Field permutation for BTree insert. Auto-created based on numFields.
     protected final int[] fieldPermutation;
+    // Key Fields that will be used for the bloom filters in the LSM-btree.
+    protected final int[] bloomFilterKeyFields;
     // Type of payload record for primary indexes. null for secondary indexes.
     protected final ARecordType payloadType;
     // Record descriptor of btree tuple. Created in c'tor.
@@ -61,15 +65,22 @@
     protected final IBinaryComparatorFactory[] bcfs;
     // Hash function factories for key fields of btree tuple. Created in c'tor.
     protected final IBinaryHashFunctionFactory[] bhffs;
+
+    protected FileReference file;
     // Identifier of file BufferCache backing this metadata btree index.
     protected int fileId;
     // Resource id of this index for use in transactions.
-    protected byte[] indexResourceId;
-    // Logger for tree indexes.
-    private TreeLogger treeLogger;
+    protected long resourceId;
+    // datasetId
+    private final DatasetId datasetId;
+    // Flag of primary index
+    protected final boolean isPrimaryIndex;
+    // PrimaryKeyField indexes used for secondary index operations
+    protected final int[] primaryKeyIndexes;
 
     public MetadataIndex(String datasetName, String indexName, int numFields, IAType[] keyTypes, String[] keyNames,
-            ARecordType payloadType) throws AsterixRuntimeException {
+            int numSecondaryIndexKeys, ARecordType payloadType, int datasetId, boolean isPrimaryIndex,
+            int[] primaryKeyIndexes) throws AsterixRuntimeException {
         // Sanity checks.
         if (keyTypes.length != keyNames.length) {
             throw new AsterixRuntimeException("Unequal number of key types and names given.");
@@ -115,14 +126,31 @@
         // Create binary comparator factories.
         bcfs = new IBinaryComparatorFactory[keyTypes.length];
         for (int i = 0; i < keyTypes.length; i++) {
-            bcfs[i] = AqlBinaryComparatorFactoryProvider.INSTANCE
-                    .getBinaryComparatorFactory(keyTypes[i], OrderKind.ASC);
+            bcfs[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(keyTypes[i], true);
         }
         // Create binary hash function factories.
         bhffs = new IBinaryHashFunctionFactory[keyTypes.length];
         for (int i = 0; i < keyTypes.length; i++) {
             bhffs[i] = AqlBinaryHashFunctionFactoryProvider.INSTANCE.getBinaryHashFunctionFactory(keyTypes[i]);
         }
+
+        if (isPrimaryIndex) {
+            bloomFilterKeyFields = new int[primaryKeyIndexes.length];
+            for (int i = 0; i < primaryKeyIndexes.length; ++i) {
+                bloomFilterKeyFields[i] = primaryKeyIndexes[i];
+            }
+        } else {
+            bloomFilterKeyFields = new int[numSecondaryIndexKeys];
+            for (int i = 0; i < numSecondaryIndexKeys; ++i) {
+                bloomFilterKeyFields[i] = i;
+            }
+        }
+
+        this.datasetId = new DatasetId(datasetId);
+        this.isPrimaryIndex = isPrimaryIndex;
+
+        //PrimaryKeyFieldIndexes
+        this.primaryKeyIndexes = primaryKeyIndexes;
     }
 
     @Override
@@ -136,6 +164,11 @@
     }
 
     @Override
+    public int[] getBloomFilterKeyFields() {
+        return bloomFilterKeyFields;
+    }
+
+    @Override
     public int getKeyFieldCount() {
         return keyTypes.length;
     }
@@ -197,12 +230,6 @@
     @Override
     public void setFileId(int fileId) {
         this.fileId = fileId;
-        this.indexResourceId = DataUtil.intToByteArray(fileId);
-    }
-
-    @Override
-    public void initTreeLogger() throws ACIDException {
-        this.treeLogger = new TreeLogger(indexResourceId);
     }
 
     @Override
@@ -216,11 +243,37 @@
     }
 
     @Override
-    public byte[] getResourceId() {
-        return indexResourceId;
+    public void setFile(FileReference file) {
+        this.file = file;
     }
 
-    public TreeLogger getTreeLogger() {
-        return treeLogger;
+    @Override
+    public FileReference getFile() {
+        return this.file;
+    }
+
+    @Override
+    public void setResourceID(long resourceID) {
+        this.resourceId = resourceID;
+    }
+
+    @Override
+    public long getResourceID() {
+        return resourceId;
+    }
+
+    @Override
+    public DatasetId getDatasetId() {
+        return datasetId;
+    }
+
+    @Override
+    public boolean isPrimaryIndex() {
+        return isPrimaryIndex;
+    }
+
+    @Override
+    public int[] getPrimaryKeyIndexes() {
+        return primaryKeyIndexes;
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
index 2a40e73..2fc3e59 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
@@ -33,6 +33,18 @@
     public static IMetadataIndex NODEGROUP_DATASET;
     public static IMetadataIndex FUNCTION_DATASET;
 
+    public static final int METADATA_DATASET_ID = 0;
+    public static final int DATAVERSE_DATASET_ID = 1;
+    public static final int DATASET_DATASET_ID = 2;
+    public static final int DATATYPE_DATASET_ID = 3;
+    public static final int INDEX_DATASET_ID = 4;
+    public static final int NODE_DATASET_ID = 5;
+    public static final int NODEGROUP_DATASET_ID = 6;
+    public static final int FUNCTION_DATASET_ID = 7;
+    public static final int DATASOURCE_ADAPTER_DATASET_ID = 8;
+    public static final int FIRST_AVAILABLE_USER_DATASET_ID = 100;
+
+    public static IMetadataIndex DATASOURCE_ADAPTER_DATASET;
 
     /**
      * Create all metadata primary index descriptors. MetadataRecordTypes must
@@ -49,30 +61,37 @@
         }
 
         DATAVERSE_DATASET = new MetadataIndex("Dataverse", null, 2, new IAType[] { BuiltinType.ASTRING },
-                new String[] { "DataverseName" }, MetadataRecordTypes.DATAVERSE_RECORDTYPE);
+                new String[] { "DataverseName" }, 0, MetadataRecordTypes.DATAVERSE_RECORDTYPE, DATAVERSE_DATASET_ID,
+                true, new int[] { 0 });
 
         DATASET_DATASET = new MetadataIndex("Dataset", null, 3,
                 new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName",
-                        "DatasetName" }, MetadataRecordTypes.DATASET_RECORDTYPE);
+                        "DatasetName" }, 0, MetadataRecordTypes.DATASET_RECORDTYPE, DATASET_DATASET_ID, true,
+                new int[] { 0, 1 });
 
         DATATYPE_DATASET = new MetadataIndex("Datatype", null, 3, new IAType[] { BuiltinType.ASTRING,
-                BuiltinType.ASTRING }, new String[] { "DataverseName", "DatatypeName" },
-                MetadataRecordTypes.DATATYPE_RECORDTYPE);
+                BuiltinType.ASTRING }, new String[] { "DataverseName", "DatatypeName" }, 0,
+                MetadataRecordTypes.DATATYPE_RECORDTYPE, DATATYPE_DATASET_ID, true, new int[] { 0, 1 });
 
         INDEX_DATASET = new MetadataIndex("Index", null, 4, new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING,
-                BuiltinType.ASTRING }, new String[] { "DataverseName", "DatasetName", "IndexName" },
-                MetadataRecordTypes.INDEX_RECORDTYPE);
+                BuiltinType.ASTRING }, new String[] { "DataverseName", "DatasetName", "IndexName" }, 0,
+                MetadataRecordTypes.INDEX_RECORDTYPE, INDEX_DATASET_ID, true, new int[] { 0, 1, 2 });
 
         NODE_DATASET = new MetadataIndex("Node", null, 2, new IAType[] { BuiltinType.ASTRING },
-                new String[] { "NodeName" }, MetadataRecordTypes.NODE_RECORDTYPE);
+                new String[] { "NodeName" }, 0, MetadataRecordTypes.NODE_RECORDTYPE, NODE_DATASET_ID, true,
+                new int[] { 0 });
 
         NODEGROUP_DATASET = new MetadataIndex("Nodegroup", null, 2, new IAType[] { BuiltinType.ASTRING },
-                new String[] { "GroupName" }, MetadataRecordTypes.NODEGROUP_RECORDTYPE);
-        
-        FUNCTION_DATASET = new MetadataIndex("Function", null, 4,
-				new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING,
-						BuiltinType.ASTRING }, new String[] { "DataverseName",
-                        "FunctionName", "FunctionArity" }, MetadataRecordTypes.FUNCTION_RECORDTYPE);
+                new String[] { "GroupName" }, 0, MetadataRecordTypes.NODEGROUP_RECORDTYPE, NODEGROUP_DATASET_ID, true,
+                new int[] { 0 });
 
+        FUNCTION_DATASET = new MetadataIndex("Function", null, 4, new IAType[] { BuiltinType.ASTRING,
+                BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName", "Name", "Arity" }, 0,
+                MetadataRecordTypes.FUNCTION_RECORDTYPE, FUNCTION_DATASET_ID, true, new int[] { 0, 1, 2 });
+
+        DATASOURCE_ADAPTER_DATASET = new MetadataIndex("DatasourceAdapter", null, 3, new IAType[] {
+                BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName", "Name" }, 0,
+                MetadataRecordTypes.DATASOURCE_ADAPTER_RECORDTYPE, DATASOURCE_ADAPTER_DATASET_ID, true, new int[] { 0,
+                        1 });
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
index 6936d0d..50681ee 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,6 +18,8 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -29,322 +31,330 @@
  * Contains static ARecordType's of all metadata record types.
  */
 public final class MetadataRecordTypes {
-	public static ARecordType DATAVERSE_RECORDTYPE;
-	public static ARecordType DATASET_RECORDTYPE;
-	public static ARecordType INTERNAL_DETAILS_RECORDTYPE;
-	public static ARecordType EXTERNAL_DETAILS_RECORDTYPE;
-	public static ARecordType FEED_DETAILS_RECORDTYPE;
-	public static ARecordType ADAPTER_PROPERTIES_RECORDTYPE;
-	public static ARecordType FIELD_RECORDTYPE;
-	public static ARecordType RECORD_RECORDTYPE;
-	public static ARecordType DERIVEDTYPE_RECORDTYPE;
-	public static ARecordType DATATYPE_RECORDTYPE;
-	public static ARecordType INDEX_RECORDTYPE;
-	public static ARecordType NODE_RECORDTYPE;
-	public static ARecordType NODEGROUP_RECORDTYPE;
-	public static ARecordType FUNCTION_RECORDTYPE;
+    public static ARecordType DATAVERSE_RECORDTYPE;
+    public static ARecordType DATASET_RECORDTYPE;
+    public static ARecordType INTERNAL_DETAILS_RECORDTYPE;
+    public static ARecordType EXTERNAL_DETAILS_RECORDTYPE;
+    public static ARecordType FEED_DETAILS_RECORDTYPE;
+    public static ARecordType DATASET_HINTS_RECORDTYPE;
+    public static ARecordType DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE;
+    public static ARecordType FIELD_RECORDTYPE;
+    public static ARecordType RECORD_RECORDTYPE;
+    public static ARecordType DERIVEDTYPE_RECORDTYPE;
+    public static ARecordType DATATYPE_RECORDTYPE;
+    public static ARecordType INDEX_RECORDTYPE;
+    public static ARecordType NODE_RECORDTYPE;
+    public static ARecordType NODEGROUP_RECORDTYPE;
+    public static ARecordType FUNCTION_RECORDTYPE;
+    public static ARecordType DATASOURCE_ADAPTER_RECORDTYPE;
 
-	/**
-	 * Create all metadata record types.
-	 */
-	public static void init() {
-		// Attention: The order of these calls is important because some types
-		// depend on other types being created first.
-		// These calls are one "dependency chain".
-		ADAPTER_PROPERTIES_RECORDTYPE = createAdapterPropertiesRecordType();
-		INTERNAL_DETAILS_RECORDTYPE = createInternalDetailsRecordType();
-		EXTERNAL_DETAILS_RECORDTYPE = createExternalDetailsRecordType();
-		FEED_DETAILS_RECORDTYPE = createFeedDetailsRecordType();
+    /**
+     * Create all metadata record types.
+     */
+    public static void init() throws MetadataException {
+        // Attention: The order of these calls is important because some types
+        // depend on other types being created first.
+        // These calls are one "dependency chain".
+        try {
+            DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE = createPropertiesRecordType();
+            INTERNAL_DETAILS_RECORDTYPE = createInternalDetailsRecordType();
+            EXTERNAL_DETAILS_RECORDTYPE = createExternalDetailsRecordType();
+            FEED_DETAILS_RECORDTYPE = createFeedDetailsRecordType();
+            DATASET_HINTS_RECORDTYPE = createPropertiesRecordType();
+            DATASET_RECORDTYPE = createDatasetRecordType();
 
-		DATASET_RECORDTYPE = createDatasetRecordType();
+            // Starting another dependency chain.
+            FIELD_RECORDTYPE = createFieldRecordType();
+            RECORD_RECORDTYPE = createRecordTypeRecordType();
+            DERIVEDTYPE_RECORDTYPE = createDerivedTypeRecordType();
+            DATATYPE_RECORDTYPE = createDatatypeRecordType();
 
-		// Starting another dependency chain.
-		FIELD_RECORDTYPE = createFieldRecordType();
-		RECORD_RECORDTYPE = createRecordTypeRecordType();
-		DERIVEDTYPE_RECORDTYPE = createDerivedTypeRecordType();
-		DATATYPE_RECORDTYPE = createDatatypeRecordType();
+            // Independent of any other types.
+            DATAVERSE_RECORDTYPE = createDataverseRecordType();
+            INDEX_RECORDTYPE = createIndexRecordType();
+            NODE_RECORDTYPE = createNodeRecordType();
+            NODEGROUP_RECORDTYPE = createNodeGroupRecordType();
+            FUNCTION_RECORDTYPE = createFunctionRecordType();
+            DATASOURCE_ADAPTER_RECORDTYPE = createDatasourceAdapterRecordType();
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+    }
 
-		// Independent of any other types.
-		DATAVERSE_RECORDTYPE = createDataverseRecordType();
-		INDEX_RECORDTYPE = createIndexRecordType();
-		NODE_RECORDTYPE = createNodeRecordType();
-		NODEGROUP_RECORDTYPE = createNodeGroupRecordType();
-		FUNCTION_RECORDTYPE = createFunctionRecordType();
+    // Helper constants for accessing fields in an ARecord of type
+    // DataverseRecordType.
+    public static final int DATAVERSE_ARECORD_NAME_FIELD_INDEX = 0;
+    public static final int DATAVERSE_ARECORD_FORMAT_FIELD_INDEX = 1;
+    public static final int DATAVERSE_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+    public static final int DATAVERSE_ARECORD_PENDINGOP_FIELD_INDEX = 3;
 
-	}
+    private static final ARecordType createDataverseRecordType() throws AsterixException {
+        return new ARecordType("DataverseRecordType", new String[] { "DataverseName", "DataFormat", "Timestamp",
+                "PendingOp" }, new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                BuiltinType.AINT32 }, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DataverseRecordType.
-	public static final int DATAVERSE_ARECORD_NAME_FIELD_INDEX = 0;
-	public static final int DATAVERSE_ARECORD_FORMAT_FIELD_INDEX = 1;
-	public static final int DATAVERSE_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // dataset properties.
+    // Used for dataset hints or dataset adapter properties.
+    public static final int DATASOURCE_PROPERTIES_NAME_FIELD_INDEX = 0;
+    public static final int DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX = 1;
 
-	private static final ARecordType createDataverseRecordType() {
-		return new ARecordType("DataverseRecordType", new String[] {
-				"DataverseName", "DataFormat", "Timestamp" },
-				new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING,
-						BuiltinType.ASTRING }, true);
-	}
+    private static final ARecordType createPropertiesRecordType() throws AsterixException {
+        String[] fieldNames = { "Name", "Value" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// external properties.
-	public static final int ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX = 0;
-	public static final int ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // internal details.
+    public static final int INTERNAL_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
+    public static final int INTERNAL_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
+    public static final int INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
+    public static final int INTERNAL_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
+    public static final int INTERNAL_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
 
-	private static final ARecordType createAdapterPropertiesRecordType() {
-		String[] fieldNames = { "Name", "Value" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createInternalDetailsRecordType() throws AsterixException {
+        AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "FileStructure", "PartitioningStrategy", "PartitioningKey", "PrimaryKey", "GroupName" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, olType, olType, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// internal details.
-	public static final int INTERNAL_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
-	public static final int INTERNAL_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
-	public static final int INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
-	public static final int INTERNAL_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
-	public static final int INTERNAL_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // external details.
+    public static final int EXTERNAL_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX = 0;
+    public static final int EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 1;
 
-	private static final ARecordType createInternalDetailsRecordType() {
-		AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "FileStructure", "PartitioningStrategy",
-				"PartitioningKey", "PrimaryKey", "GroupName" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				olType, olType, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+    private static final ARecordType createExternalDetailsRecordType() throws AsterixException {
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// external details.
-	public static final int EXTERNAL_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 0;
-	public static final int EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 1;
+        AOrderedListType orderedPropertyListType = new AOrderedListType(DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE, null);
+        String[] fieldNames = { "DatasourceAdapter", "Properties" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, orderedPropertyListType };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-	private static final ARecordType createExternalDetailsRecordType() {
+    public static final int FEED_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
+    public static final int FEED_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
+    public static final int FEED_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
+    public static final int FEED_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
+    public static final int FEED_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
+    public static final int FEED_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX = 5;
+    public static final int FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 6;
+    public static final int FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX = 7;
+    public static final int FEED_DETAILS_ARECORD_STATE_FIELD_INDEX = 8;
 
-		AOrderedListType orderedPropertyListType = new AOrderedListType(
-				ADAPTER_PROPERTIES_RECORDTYPE, null);
-		String[] fieldNames = { "Adapter", "Properties" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, orderedPropertyListType };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+    private static final ARecordType createFeedDetailsRecordType() throws AsterixException {
+        AOrderedListType orderedListType = new AOrderedListType(BuiltinType.ASTRING, null);
+        AOrderedListType orderedListOfPropertiesType = new AOrderedListType(DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE,
+                null);
+        String[] fieldNames = { "FileStructure", "PartitioningStrategy", "PartitioningKey", "PrimaryKey", "GroupName",
+                "DatasourceAdapter", "Properties", "Function", "Status" };
 
-	public static final int FEED_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
-	public static final int FEED_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
-	public static final int FEEDL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
-	public static final int FEED_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
-	public static final int FEED_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
-	public static final int FEED_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 5;
-	public static final int FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 6;
-	public static final int FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX = 7;
-	public static final int FEED_DETAILS_ARECORD_STATE_FIELD_INDEX = 8;
+        List<IAType> feedFunctionUnionList = new ArrayList<IAType>();
+        feedFunctionUnionList.add(BuiltinType.ANULL);
+        feedFunctionUnionList.add(BuiltinType.ASTRING);
+        AUnionType feedFunctionUnion = new AUnionType(feedFunctionUnionList, null);
 
-	private static final ARecordType createFeedDetailsRecordType() {
-		AOrderedListType orderedListType = new AOrderedListType(
-				BuiltinType.ASTRING, null);
-		AOrderedListType orderedListOfPropertiesType = new AOrderedListType(
-				ADAPTER_PROPERTIES_RECORDTYPE, null);
-		String[] fieldNames = { "FileStructure", "PartitioningStrategy",
-				"PartitioningKey", "PrimaryKey", "GroupName", "Adapter",
-				"Properties", "Function", "Status" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListType, orderedListType,
+                BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListOfPropertiesType, feedFunctionUnion,
+                BuiltinType.ASTRING };
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				orderedListType, orderedListType, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, orderedListOfPropertiesType,
-				BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+    public static final int DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int DATASET_ARECORD_DATASETNAME_FIELD_INDEX = 1;
+    public static final int DATASET_ARECORD_DATATYPENAME_FIELD_INDEX = 2;
+    public static final int DATASET_ARECORD_DATASETTYPE_FIELD_INDEX = 3;
+    public static final int DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX = 4;
+    public static final int DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX = 5;
+    public static final int DATASET_ARECORD_FEEDDETAILS_FIELD_INDEX = 6;
+    public static final int DATASET_ARECORD_HINTS_FIELD_INDEX = 7;
+    public static final int DATASET_ARECORD_TIMESTAMP_FIELD_INDEX = 8;
+    public static final int DATASET_ARECORD_DATASETID_FIELD_INDEX = 9;
+    public static final int DATASET_ARECORD_PENDINGOP_FIELD_INDEX = 10;
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DatasetRecordType.
-	public static final int DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int DATASET_ARECORD_DATASETNAME_FIELD_INDEX = 1;
-	public static final int DATASET_ARECORD_DATATYPENAME_FIELD_INDEX = 2;
-	public static final int DATASET_ARECORD_DATASETTYPE_FIELD_INDEX = 3;
-	public static final int DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX = 4;
-	public static final int DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX = 5;
-	public static final int DATASET_ARECORD_FEEDDETAILS_FIELD_INDEX = 6;
-	public static final int DATASET_ARECORD_TIMESTAMP_FIELD_INDEX = 7;
+    private static final ARecordType createDatasetRecordType() throws AsterixException {
+        String[] fieldNames = { "DataverseName", "DatasetName", "DataTypeName", "DatasetType", "InternalDetails",
+                "ExternalDetails", "FeedDetails", "Hints", "Timestamp", "DatasetId", "PendingOp" };
 
-	private static final ARecordType createDatasetRecordType() {
-		String[] fieldNames = { "DataverseName", "DatasetName", "DataTypeName",
-				"DatasetType", "InternalDetails", "ExternalDetails",
-				"FeedDetails", "Timestamp" };
+        List<IAType> internalRecordUnionList = new ArrayList<IAType>();
+        internalRecordUnionList.add(BuiltinType.ANULL);
+        internalRecordUnionList.add(INTERNAL_DETAILS_RECORDTYPE);
+        AUnionType internalRecordUnion = new AUnionType(internalRecordUnionList, null);
 
-		List<IAType> internalRecordUnionList = new ArrayList<IAType>();
-		internalRecordUnionList.add(BuiltinType.ANULL);
-		internalRecordUnionList.add(INTERNAL_DETAILS_RECORDTYPE);
-		AUnionType internalRecordUnion = new AUnionType(
-				internalRecordUnionList, null);
+        List<IAType> externalRecordUnionList = new ArrayList<IAType>();
+        externalRecordUnionList.add(BuiltinType.ANULL);
+        externalRecordUnionList.add(EXTERNAL_DETAILS_RECORDTYPE);
+        AUnionType externalRecordUnion = new AUnionType(externalRecordUnionList, null);
 
-		List<IAType> externalRecordUnionList = new ArrayList<IAType>();
-		externalRecordUnionList.add(BuiltinType.ANULL);
-		externalRecordUnionList.add(EXTERNAL_DETAILS_RECORDTYPE);
-		AUnionType externalRecordUnion = new AUnionType(
-				externalRecordUnionList, null);
+        List<IAType> feedRecordUnionList = new ArrayList<IAType>();
+        feedRecordUnionList.add(BuiltinType.ANULL);
+        feedRecordUnionList.add(FEED_DETAILS_RECORDTYPE);
+        AUnionType feedRecordUnion = new AUnionType(feedRecordUnionList, null);
 
-		List<IAType> feedRecordUnionList = new ArrayList<IAType>();
-		feedRecordUnionList.add(BuiltinType.ANULL);
-		feedRecordUnionList.add(FEED_DETAILS_RECORDTYPE);
-		AUnionType feedRecordUnion = new AUnionType(feedRecordUnionList, null);
+        AUnorderedListType unorderedListOfHintsType = new AUnorderedListType(DATASET_HINTS_RECORDTYPE, null);
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, BuiltinType.ASTRING, internalRecordUnion,
-				externalRecordUnion, feedRecordUnion, BuiltinType.ASTRING };
-		return new ARecordType("DatasetRecordType", fieldNames, fieldTypes,
-				true);
-	}
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                internalRecordUnion, externalRecordUnion, feedRecordUnion, unorderedListOfHintsType,
+                BuiltinType.ASTRING, BuiltinType.AINT32, BuiltinType.AINT32 };
+        return new ARecordType("DatasetRecordType", fieldNames, fieldTypes, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// field type.
-	public static final int FIELD_ARECORD_FIELDNAME_FIELD_INDEX = 0;
-	public static final int FIELD_ARECORD_FIELDTYPE_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // field type.
+    public static final int FIELD_ARECORD_FIELDNAME_FIELD_INDEX = 0;
+    public static final int FIELD_ARECORD_FIELDTYPE_FIELD_INDEX = 1;
 
-	private static final ARecordType createFieldRecordType() {
-		String[] fieldNames = { "FieldName", "FieldType" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createFieldRecordType() throws AsterixException {
+        String[] fieldNames = { "FieldName", "FieldType" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// record type.
-	public static final int RECORDTYPE_ARECORD_ISOPEN_FIELD_INDEX = 0;
-	public static final int RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // record type.
+    public static final int RECORDTYPE_ARECORD_ISOPEN_FIELD_INDEX = 0;
+    public static final int RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX = 1;
 
-	private static final ARecordType createRecordTypeRecordType() {
-		AOrderedListType olType = new AOrderedListType(FIELD_RECORDTYPE, null);
-		String[] fieldNames = { "IsOpen", "Fields" };
-		IAType[] fieldTypes = { BuiltinType.ABOOLEAN, olType };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createRecordTypeRecordType() throws AsterixException {
+        AOrderedListType olType = new AOrderedListType(FIELD_RECORDTYPE, null);
+        String[] fieldNames = { "IsOpen", "Fields" };
+        IAType[] fieldTypes = { BuiltinType.ABOOLEAN, olType };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// derived type.
-	public static final int DERIVEDTYPE_ARECORD_TAG_FIELD_INDEX = 0;
-	public static final int DERIVEDTYPE_ARECORD_ISANONYMOUS_FIELD_INDEX = 1;
-	public static final int DERIVEDTYPE_ARECORD_ENUMVALUES_FIELD_INDEX = 2;
-	public static final int DERIVEDTYPE_ARECORD_RECORD_FIELD_INDEX = 3;
-	public static final int DERIVEDTYPE_ARECORD_UNION_FIELD_INDEX = 4;
-	public static final int DERIVEDTYPE_ARECORD_UNORDEREDLIST_FIELD_INDEX = 5;
-	public static final int DERIVEDTYPE_ARECORD_ORDEREDLIST_FIELD_INDEX = 6;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // derived type.
+    public static final int DERIVEDTYPE_ARECORD_TAG_FIELD_INDEX = 0;
+    public static final int DERIVEDTYPE_ARECORD_ISANONYMOUS_FIELD_INDEX = 1;
+    public static final int DERIVEDTYPE_ARECORD_ENUMVALUES_FIELD_INDEX = 2;
+    public static final int DERIVEDTYPE_ARECORD_RECORD_FIELD_INDEX = 3;
+    public static final int DERIVEDTYPE_ARECORD_UNION_FIELD_INDEX = 4;
+    public static final int DERIVEDTYPE_ARECORD_UNORDEREDLIST_FIELD_INDEX = 5;
+    public static final int DERIVEDTYPE_ARECORD_ORDEREDLIST_FIELD_INDEX = 6;
 
-	private static final ARecordType createDerivedTypeRecordType() {
-		String[] fieldNames = { "Tag", "IsAnonymous", "EnumValues", "Record",
-				"Union", "UnorderedList", "OrderedList" };
-		List<IAType> recordUnionList = new ArrayList<IAType>();
-		recordUnionList.add(BuiltinType.ANULL);
-		recordUnionList.add(RECORD_RECORDTYPE);
-		AUnionType recordUnion = new AUnionType(recordUnionList, null);
+    private static final ARecordType createDerivedTypeRecordType() throws AsterixException {
+        String[] fieldNames = { "Tag", "IsAnonymous", "EnumValues", "Record", "Union", "UnorderedList", "OrderedList" };
+        List<IAType> recordUnionList = new ArrayList<IAType>();
+        recordUnionList.add(BuiltinType.ANULL);
+        recordUnionList.add(RECORD_RECORDTYPE);
+        AUnionType recordUnion = new AUnionType(recordUnionList, null);
 
-		List<IAType> unionUnionList = new ArrayList<IAType>();
-		unionUnionList.add(BuiltinType.ANULL);
-		unionUnionList.add(new AOrderedListType(BuiltinType.ASTRING, null));
-		AUnionType unionUnion = new AUnionType(unionUnionList, null);
+        List<IAType> unionUnionList = new ArrayList<IAType>();
+        unionUnionList.add(BuiltinType.ANULL);
+        unionUnionList.add(new AOrderedListType(BuiltinType.ASTRING, null));
+        AUnionType unionUnion = new AUnionType(unionUnionList, null);
 
-		List<IAType> collectionUnionList = new ArrayList<IAType>();
-		collectionUnionList.add(BuiltinType.ANULL);
-		collectionUnionList.add(BuiltinType.ASTRING);
-		AUnionType collectionUnion = new AUnionType(collectionUnionList, null);
+        List<IAType> collectionUnionList = new ArrayList<IAType>();
+        collectionUnionList.add(BuiltinType.ANULL);
+        collectionUnionList.add(BuiltinType.ASTRING);
+        AUnionType collectionUnion = new AUnionType(collectionUnionList, null);
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ABOOLEAN,
-				unionUnion, recordUnion, unionUnion, collectionUnion,
-				collectionUnion };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ABOOLEAN, unionUnion, recordUnion, unionUnion,
+                collectionUnion, collectionUnion };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DatatypeRecordType.
-	public static final int DATATYPE_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int DATATYPE_ARECORD_DATATYPENAME_FIELD_INDEX = 1;
-	public static final int DATATYPE_ARECORD_DERIVED_FIELD_INDEX = 2;
-	public static final int DATATYPE_ARECORD_TIMESTAMP_FIELD_INDEX = 3;
+    // Helper constants for accessing fields in an ARecord of type
+    // DatatypeRecordType.
+    public static final int DATATYPE_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int DATATYPE_ARECORD_DATATYPENAME_FIELD_INDEX = 1;
+    public static final int DATATYPE_ARECORD_DERIVED_FIELD_INDEX = 2;
+    public static final int DATATYPE_ARECORD_TIMESTAMP_FIELD_INDEX = 3;
 
-	private static final ARecordType createDatatypeRecordType() {
-		String[] fieldNames = { "DataverseName", "DatatypeName", "Derived",
-				"Timestamp" };
-		List<IAType> recordUnionList = new ArrayList<IAType>();
-		recordUnionList.add(BuiltinType.ANULL);
-		recordUnionList.add(DERIVEDTYPE_RECORDTYPE);
-		AUnionType recordUnion = new AUnionType(recordUnionList, null);
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				recordUnion, BuiltinType.ASTRING };
-		return new ARecordType("DatatypeRecordType", fieldNames, fieldTypes,
-				true);
-	};
+    private static final ARecordType createDatatypeRecordType() throws AsterixException {
+        String[] fieldNames = { "DataverseName", "DatatypeName", "Derived", "Timestamp" };
+        List<IAType> recordUnionList = new ArrayList<IAType>();
+        recordUnionList.add(BuiltinType.ANULL);
+        recordUnionList.add(DERIVEDTYPE_RECORDTYPE);
+        AUnionType recordUnion = new AUnionType(recordUnionList, null);
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, recordUnion, BuiltinType.ASTRING };
+        return new ARecordType("DatatypeRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// IndexRecordType.
-	public static final int INDEX_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int INDEX_ARECORD_DATASETNAME_FIELD_INDEX = 1;
-	public static final int INDEX_ARECORD_INDEXNAME_FIELD_INDEX = 2;
-	public static final int INDEX_ARECORD_INDEXSTRUCTURE_FIELD_INDEX = 3;
-	public static final int INDEX_ARECORD_SEARCHKEY_FIELD_INDEX = 4;
-	public static final int INDEX_ARECORD_ISPRIMARY_FIELD_INDEX = 5;
-	public static final int INDEX_ARECORD_TIMESTAMP_FIELD_INDEX = 6;
+    // Helper constants for accessing fields in an ARecord of type
+    // IndexRecordType.
+    public static final int INDEX_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int INDEX_ARECORD_DATASETNAME_FIELD_INDEX = 1;
+    public static final int INDEX_ARECORD_INDEXNAME_FIELD_INDEX = 2;
+    public static final int INDEX_ARECORD_INDEXSTRUCTURE_FIELD_INDEX = 3;
+    public static final int INDEX_ARECORD_SEARCHKEY_FIELD_INDEX = 4;
+    public static final int INDEX_ARECORD_ISPRIMARY_FIELD_INDEX = 5;
+    public static final int INDEX_ARECORD_TIMESTAMP_FIELD_INDEX = 6;
+    public static final int INDEX_ARECORD_PENDINGOP_FIELD_INDEX = 7;
 
-	private static final ARecordType createIndexRecordType() {
-		AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "DataverseName", "DatasetName", "IndexName",
-				"IndexStructure", "SearchKey", "IsPrimary", "Timestamp" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, BuiltinType.ASTRING, olType,
-				BuiltinType.ABOOLEAN, BuiltinType.ASTRING };
-		return new ARecordType("IndexRecordType", fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createIndexRecordType() throws AsterixException {
+        AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "DataverseName", "DatasetName", "IndexName", "IndexStructure", "SearchKey",
+                "IsPrimary", "Timestamp", "PendingOp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                olType, BuiltinType.ABOOLEAN, BuiltinType.ASTRING, BuiltinType.AINT32 };
+        return new ARecordType("IndexRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// NodeRecordType.
-	public static final int NODE_ARECORD_NODENAME_FIELD_INDEX = 0;
-	public static final int NODE_ARECORD_NUMBEROFCORES_FIELD_INDEX = 1;
-	public static final int NODE_ARECORD_WORKINGMEMORYSIZE_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of type
+    // NodeRecordType.
+    public static final int NODE_ARECORD_NODENAME_FIELD_INDEX = 0;
+    public static final int NODE_ARECORD_NUMBEROFCORES_FIELD_INDEX = 1;
+    public static final int NODE_ARECORD_WORKINGMEMORYSIZE_FIELD_INDEX = 2;
 
-	private static final ARecordType createNodeRecordType() {
-		String[] fieldNames = { "NodeName", "NumberOfCores",
-				"WorkingMemorySize" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.AINT32,
-				BuiltinType.AINT32 };
-		return new ARecordType("NodeRecordType", fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createNodeRecordType() throws AsterixException {
+        String[] fieldNames = { "NodeName", "NumberOfCores", "WorkingMemorySize" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.AINT32, BuiltinType.AINT32 };
+        return new ARecordType("NodeRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// NodeGroupRecordType.
-	public static final int NODEGROUP_ARECORD_GROUPNAME_FIELD_INDEX = 0;
-	public static final int NODEGROUP_ARECORD_NODENAMES_FIELD_INDEX = 1;
-	public static final int NODEGROUP_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of type
+    // NodeGroupRecordType.
+    public static final int NODEGROUP_ARECORD_GROUPNAME_FIELD_INDEX = 0;
+    public static final int NODEGROUP_ARECORD_NODENAMES_FIELD_INDEX = 1;
+    public static final int NODEGROUP_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
 
-	private static final ARecordType createNodeGroupRecordType() {
-		AUnorderedListType ulType = new AUnorderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "GroupName", "NodeNames", "Timestamp" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, ulType,
-				BuiltinType.ASTRING };
-		return new ARecordType("NodeGroupRecordType", fieldNames, fieldTypes,
-				true);
-	};
+    private static final ARecordType createNodeGroupRecordType() throws AsterixException {
+        AUnorderedListType ulType = new AUnorderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "GroupName", "NodeNames", "Timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, ulType, BuiltinType.ASTRING };
+        return new ARecordType("NodeGroupRecordType", fieldNames, fieldTypes, true);
+    };
 
-	private static IAType createFunctionParamsRecordType() {
-		AOrderedListType orderedParamListType = new AOrderedListType(
-				BuiltinType.ASTRING, null);
-		return orderedParamListType;
+    private static IAType createFunctionParamsRecordType() {
+        AOrderedListType orderedParamListType = new AOrderedListType(BuiltinType.ASTRING, null);
+        return orderedParamListType;
 
-	}
+    }
 
-	public static final int FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX = 1;
-	public static final int FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX = 2;
-	public static final int FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX = 3;
-	public static final int FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX = 4;
+    public static final int FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX = 1;
+    public static final int FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX = 2;
+    public static final int FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX = 3;
+    public static final int FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX = 4;
+    public static final int FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX = 5;
+    public static final int FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX = 6;
+    public static final int FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX = 7;
 
-	private static final ARecordType createFunctionRecordType() {
+    private static final ARecordType createFunctionRecordType() throws AsterixException {
 
-		String[] fieldNames = { "DataverseName", "FunctionName",
-				"FunctionArity", "FunctionParams", "FunctionBody" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, createFunctionParamsRecordType(),
-				BuiltinType.ASTRING };
-		return new ARecordType("FunctionRecordType", fieldNames, fieldTypes,
-				true);
-	}
+        String[] fieldNames = { "DataverseName", "Name", "Arity", "Params", "ReturnType", "Definition", "Language",
+                "Kind" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                createFunctionParamsRecordType(), BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                BuiltinType.ASTRING };
+        return new ARecordType("FunctionRecordType", fieldNames, fieldTypes, true);
+    }
+
+    public static final int DATASOURCE_ADAPTER_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int DATASOURCE_ADAPTER_ARECORD_NAME_FIELD_INDEX = 1;
+    public static final int DATASOURCE_ADAPTER_ARECORD_CLASSNAME_FIELD_INDEX = 2;
+    public static final int DATASOURCE_ADAPTER_ARECORD_TYPE_FIELD_INDEX = 3;
+    public static final int DATASOURCE_ADAPTER_ARECORD_TIMESTAMP_FIELD_INDEX = 4;
+
+    private static ARecordType createDatasourceAdapterRecordType() throws AsterixException {
+        String[] fieldNames = { "DataverseName", "Name", "Classname", "Type", "Timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                BuiltinType.ASTRING };
+        return new ARecordType("DatasourceAdapterRecordType", fieldNames, fieldTypes, true);
+    }
+
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataSecondaryIndexes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataSecondaryIndexes.java
index a23e7d7..a0da856 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataSecondaryIndexes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataSecondaryIndexes.java
@@ -44,14 +44,17 @@
 
         GROUPNAME_ON_DATASET_INDEX = new MetadataIndex("Dataset", "GroupName", 3, new IAType[] { BuiltinType.ASTRING,
                 BuiltinType.ASTRING, BuiltinType.ASTRING },
-                new String[] { "GroupName", "DataverseName", "DatasetName" }, null);
+                new String[] { "GroupName", "DataverseName", "DatasetName" }, 1, null,
+                MetadataPrimaryIndexes.DATASET_DATASET_ID, false, new int[] { 1, 2 });
 
         DATATYPENAME_ON_DATASET_INDEX = new MetadataIndex("Dataset", "DatatypeName", 3, new IAType[] {
                 BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName",
-                "DatatypeName", "DatasetName" }, null);
+                "DatatypeName", "DatasetName" }, 2, null, MetadataPrimaryIndexes.DATASET_DATASET_ID, false, new int[] {
+                0, 2 });
 
         DATATYPENAME_ON_DATATYPE_INDEX = new MetadataIndex("Datatype", "DatatypeName", 3, new IAType[] {
                 BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName",
-                "NestedDatatypeName", "TopDatatypeName" }, null);
+                "NestedDatatypeName", "TopDatatypeName" }, 2, null, MetadataPrimaryIndexes.DATATYPE_DATASET_ID, false,
+                new int[] { 0, 2 });
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java
new file mode 100644
index 0000000..149d447
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/DatasetHints.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.dataset.hints;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * Collection of hints supported by create dataset statement.
+ * Includes method to validate a hint and its associated value
+ * as provided in a create dataset statement.
+ */
+public class DatasetHints {
+
+    /**
+     * validate the use of a hint
+     * 
+     * @param hintName
+     *            name of the hint
+     * @param value
+     *            value associated with the hint
+     * @return a Pair with
+     *         first element as a boolean that represents the validation result.
+     *         second element as the error message if the validation result is false
+     */
+    public static Pair<Boolean, String> validate(String hintName, String value) {
+        for (IHint h : hints) {
+            if (h.getName().equalsIgnoreCase(hintName.trim())) {
+                return h.validateValue(value);
+            }
+        }
+        return new Pair<Boolean, String>(false, "Unknwon hint :" + hintName);
+    }
+
+    private static Set<IHint> hints = initHints();
+
+    private static Set<IHint> initHints() {
+        Set<IHint> hints = new HashSet<IHint>();
+        hints.add(new DatasetCardinalityHint());
+        return hints;
+    }
+
+    /**
+     * Hint representing the expected number of tuples in the dataset.
+     */
+    public static class DatasetCardinalityHint implements IHint {
+        public static final String NAME = "CARDINALITY";
+
+        public static final long DEFAULT = 1000000L;
+
+        @Override
+        public String getName() {
+            return NAME;
+        }
+
+        @Override
+        public Pair<Boolean, String> validateValue(String value) {
+            boolean valid = true;
+            long longValue;
+            try {
+                longValue = Long.parseLong(value);
+                if (longValue < 0) {
+                    return new Pair<Boolean, String>(false, "Value must be >= 0");
+                }
+            } catch (NumberFormatException nfe) {
+                valid = false;
+                return new Pair<Boolean, String>(valid, "Inappropriate value");
+            }
+            return new Pair<Boolean, String>(true, null);
+        }
+
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
new file mode 100644
index 0000000..8957ca7
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.dataset.hints;
+
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * Represents a hint provided as part of an AQL statement.
+ */
+public interface IHint {
+
+    /**
+     * retrieve the name of the hint.
+     * 
+     * @return
+     */
+    public String getName();
+
+    /**
+     * validate the value associated with the hint.
+     * 
+     * @param value
+     *            the value associated with the hint.
+     * @return a Pair with
+     *         first element as a boolean that represents the validation result.
+     *         second element as the error message if the validation result is false
+     */
+    public Pair<Boolean, String> validateValue(String value);
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledDatasetDecl.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledDatasetDecl.java
deleted file mode 100644
index 1d806b1..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledDatasetDecl.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.asterix.metadata.declared;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-
-public class AqlCompiledDatasetDecl {
-
-    private String name;
-    private String itemTypeName;
-    private DatasetType datasetType;
-    private IAqlCompiledDatasetDetails acdd;
-
-    public AqlCompiledDatasetDecl(String name, String itemTypeName, DatasetType datasetType,
-            IAqlCompiledDatasetDetails acdd) {
-        this.name = name;
-        this.itemTypeName = itemTypeName;
-        this.datasetType = datasetType;
-        this.acdd = acdd;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public String getItemTypeName() {
-        return itemTypeName;
-    }
-
-    public DatasetType getDatasetType() {
-        return datasetType;
-    }
-
-    public IAqlCompiledDatasetDetails getAqlCompiledDatasetDetails() {
-        return acdd;
-    }
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledExternalDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledExternalDatasetDetails.java
deleted file mode 100644
index 2e5eb3a..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledExternalDatasetDetails.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.declared;
-
-import java.util.Map;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-
-public class AqlCompiledExternalDatasetDetails implements IAqlCompiledDatasetDetails {
-
-    private final String adapter;
-    private final Map<String, String> properties;
-
-    public AqlCompiledExternalDatasetDetails(String adapter, Map<String, String> properties) {
-        this.adapter = adapter;
-        this.properties = properties;
-    }
-
-    public String getAdapter() {
-        return adapter;
-    }
-
-    public Map<String, String> getProperties() {
-        return properties;
-    }
-
-    @Override
-    public DatasetType getDatasetType() {
-        return DatasetType.EXTERNAL;
-    }
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledFeedDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledFeedDatasetDetails.java
deleted file mode 100644
index 0e3cf51..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledFeedDatasetDetails.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.declared;
-
-import java.util.List;
-import java.util.Map;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-
-public class AqlCompiledFeedDatasetDetails extends
-		AqlCompiledInternalDatasetDetails {
-	private final String adapter;
-	private final Map<String, String> properties;
-	private final String functionIdentifier;
-	private final String feedState;
-
-	public AqlCompiledFeedDatasetDetails(
-			List<String> partitioningExprs,
-			List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitionFuns,
-			String nodegroupName, AqlCompiledIndexDecl primaryIndex,
-			List<AqlCompiledIndexDecl> secondaryIndexes, String adapter,
-			Map<String, String> properties, String functionIdentifier,
-			String feedState) {
-		super(partitioningExprs, partitionFuns, nodegroupName, primaryIndex,
-				secondaryIndexes);
-		this.adapter = adapter;
-		this.properties = properties;
-		this.functionIdentifier = functionIdentifier;
-		this.feedState = feedState;
-	}
-
-	public String getAdapter() {
-		return adapter;
-	}
-
-	public Map<String, String> getProperties() {
-		return properties;
-	}
-
-	public String getFunctionIdentifier() {
-		return functionIdentifier;
-	}
-
-	public DatasetType getDatasetType() {
-		return DatasetType.FEED;
-	}
-
-	public String getFeedState() {
-		return feedState;
-	}
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledIndexDecl.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledIndexDecl.java
deleted file mode 100644
index cafd44f..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledIndexDecl.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.asterix.metadata.declared;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public class AqlCompiledIndexDecl {
-
-    public enum IndexKind {
-        BTREE,
-        RTREE
-    }
-
-    private String indexName;
-    private IndexKind kind;
-    private List<String> fieldExprs = new ArrayList<String>();
-
-    public AqlCompiledIndexDecl(String indexName, IndexKind kind, List<String> fieldExprs) {
-        this.indexName = indexName;
-        this.kind = kind;
-        this.fieldExprs = fieldExprs;
-    }
-
-    @Override
-    public String toString() {
-        return "INDEX " + indexName + " (" + kind + ") " + fieldExprs;
-    }
-
-    public IndexKind getKind() {
-        return kind;
-    }
-
-    public String getIndexName() {
-        return indexName;
-    }
-
-    public List<String> getFieldExprs() {
-        return fieldExprs;
-    }
-
-    public static IAType keyFieldType(String expr, ARecordType recType) throws AlgebricksException {
-        String[] names = recType.getFieldNames();
-        int n = names.length;
-        for (int i = 0; i < n; i++) {
-            if (names[i].equals(expr)) {
-                return recType.getFieldTypes()[i];
-            }
-        }
-        throw new AlgebricksException("Could not find field " + expr + " in the schema.");
-    }
-
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledInternalDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledInternalDatasetDetails.java
deleted file mode 100644
index f1a22d6..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledInternalDatasetDetails.java
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.declared;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
-
-public class AqlCompiledInternalDatasetDetails implements IAqlCompiledDatasetDetails {
-    private final List<String> partitioningExprs;
-    private final List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitionFuns;
-    private final String nodegroupName;
-    private final List<AqlCompiledIndexDecl> secondaryIndexes;
-    private final AqlCompiledIndexDecl primaryIndex;
-    private HashMap<String, List<AqlCompiledIndexDecl>> secondaryIndexInvertedList;
-
-    public AqlCompiledInternalDatasetDetails(List<String> partitioningExprs,
-            List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitionFuns, String nodegroupName,
-            AqlCompiledIndexDecl primaryIndex, List<AqlCompiledIndexDecl> secondaryIndexes) {
-        this.partitioningExprs = partitioningExprs;
-        this.partitionFuns = partitionFuns;
-        this.nodegroupName = nodegroupName;
-        this.primaryIndex = primaryIndex;
-        this.secondaryIndexes = secondaryIndexes;
-        invertSecondaryIndexExprs();
-    }
-
-    public String toString() {
-        StringBuilder sb = new StringBuilder();
-        sb.append("dataset partitioned-by " + partitionFuns + " on " + nodegroupName);
-        if (secondaryIndexes != null && !secondaryIndexes.isEmpty()) {
-            sb.append(System.getProperty("line.separator") + " with indexes: " + secondaryIndexes);
-        }
-        return sb.toString();
-    }
-
-    public List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> getPartitioningFunctions() {
-        return partitionFuns;
-    }
-
-    public List<String> getPartitioningExprs() {
-        return partitioningExprs;
-    }
-
-    public int getPositionOfPartitioningKeyField(String fieldName) {
-        int pos = 0;
-        for (String pe : partitioningExprs) {
-            if (pe.equals(fieldName)) {
-                return pos;
-            }
-            ++pos;
-        }
-        return -1;
-    }
-
-    public String getNodegroupName() {
-        return nodegroupName;
-    }
-
-    public List<AqlCompiledIndexDecl> getSecondaryIndexes() {
-        return secondaryIndexes;
-    }
-
-    public AqlCompiledIndexDecl getPrimaryIndex() {
-        return primaryIndex;
-    }
-
-    public List<AqlCompiledIndexDecl> findSecondaryIndexesByOneOfTheKeys(String fieldExpr) {
-        return secondaryIndexInvertedList.get(fieldExpr);
-    }
-
-    public AqlCompiledIndexDecl findSecondaryIndexByExactKeyList(List<String> fieldExprs) {
-        if (secondaryIndexes == null) {
-            return null;
-        }
-        for (AqlCompiledIndexDecl acid : secondaryIndexes) {
-            if (acid.getFieldExprs().equals(fieldExprs)) {
-                return acid;
-            }
-        }
-        return null;
-    }
-
-    public AqlCompiledIndexDecl findSecondaryIndexByName(String idxName) {
-        if (secondaryIndexes == null) {
-            return null;
-        }
-        for (AqlCompiledIndexDecl acid : secondaryIndexes) {
-            if (acid.getIndexName().equals(idxName)) {
-                return acid;
-            }
-        }
-        return null;
-    }
-
-    private void invertSecondaryIndexExprs() {
-        secondaryIndexInvertedList = new HashMap<String, List<AqlCompiledIndexDecl>>();
-        if (secondaryIndexes == null) {
-            return;
-        }
-        for (AqlCompiledIndexDecl idx : secondaryIndexes) {
-            for (String s : idx.getFieldExprs()) {
-                List<AqlCompiledIndexDecl> idxList = secondaryIndexInvertedList.get(s);
-                if (idxList == null) {
-                    idxList = new ArrayList<AqlCompiledIndexDecl>();
-                    secondaryIndexInvertedList.put(s, idxList);
-                }
-                idxList.add(idx);
-            }
-        }
-    }
-
-    @Override
-    public DatasetType getDatasetType() {
-        return DatasetType.INTERNAL;
-    }
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
index 889de2e..35a9b83 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
@@ -23,7 +23,6 @@
 
 import edu.uci.ics.asterix.common.annotations.TypeDataGen;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.MetadataException;
@@ -31,25 +30,18 @@
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.api.IMetadataManager;
 import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl.IndexKind;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
-import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IAWriterFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksAbsolutePartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
@@ -81,10 +73,11 @@
         this.dataverseName = dataverseName;
         this.outputFile = outputFile;
         this.config = config;
-        if (stores == null && online)
+        if (stores == null && online) {
             this.stores = AsterixProperties.INSTANCE.getStores();
-        else
+        } else {
             this.stores = stores;
+        }
         this.types = types;
         this.typeDataGenMap = typeDataGenMap;
         this.writerFactory = writerFactory;
@@ -113,17 +106,16 @@
     }
 
     public void disconnectFromDataverse() throws AlgebricksException {
-        if (!isConnected)
+        if (!isConnected) {
             throw new AlgebricksException("You are not connected to any dataverse");
-        else {
-            dataverseName = null;
-            format = null;
-            isConnected = false;
         }
+        dataverseName = null;
+        format = null;
+        isConnected = false;
     }
 
     public boolean isConnectedToDataverse() {
-        return this.isConnected;
+        return isConnected;
     }
 
     public String getDataverseName() {
@@ -135,8 +127,9 @@
     }
 
     public IDataFormat getFormat() throws AlgebricksException {
-        if (!isConnected)
+        if (!isConnected) {
             throw new AlgebricksException("You need first to connect to a dataverse.");
+        }
         return format;
     }
 
@@ -157,81 +150,52 @@
         return type.getDatatype();
     }
 
-    public List<String> findNodeGroupNodeNames(String nodeGroupName) throws AlgebricksException, MetadataException {
-        NodeGroup ng = metadataManager.getNodegroup(mdTxnCtx, nodeGroupName);
+    public List<String> findNodeGroupNodeNames(String nodeGroupName) throws AlgebricksException {
+        NodeGroup ng;
+        try {
+            ng = metadataManager.getNodegroup(mdTxnCtx, nodeGroupName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
         if (ng == null) {
             throw new AlgebricksException("No node group with this name " + nodeGroupName);
         }
         return ng.getNodeNames();
     }
 
-    public String[] getStores(String nodeName) {
-        return stores.get(nodeName);
-    }
-
     public Map<String, String[]> getAllStores() {
         return stores;
     }
 
-    public AqlCompiledDatasetDecl findDataset(String datasetName) {
+    public Dataset findDataset(String datasetName) throws AlgebricksException {
         try {
-            Dataset datasetRecord = this.metadataManager.getDataset(mdTxnCtx, dataverseName, datasetName);
-            if (datasetRecord == null) {
-                return null;
-            }
+            return metadataManager.getDataset(mdTxnCtx, dataverseName, datasetName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
 
-            IAqlCompiledDatasetDetails acdd = null;
-            switch (datasetRecord.getType()) {
-                case FEED:
-                case INTERNAL: {
-                    String typeName = datasetRecord.getDatatypeName();
-                    InternalDatasetDetails id = (InternalDatasetDetails) datasetRecord.getDatasetDetails();
-                    ARecordType recType = (ARecordType) findType(typeName);
-                    List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningEvalFactories = computePartitioningEvaluatorFactories(
-                            id.getPartitioningKey(), recType);
-                    List<Index> indexRecord = this.metadataManager.getDatasetIndexes(mdTxnCtx, dataverseName,
-                            datasetName);
-                    AqlCompiledIndexDecl primaryIndex = null;
-                    List<AqlCompiledIndexDecl> secondaryIndexes = new ArrayList<AqlCompiledIndexDecl>();
-                    for (int i = 0; i < indexRecord.size(); i++) {
-                        Index rec = indexRecord.get(i);
-                        if (rec.isPrimaryIndex()) {
-                            primaryIndex = new AqlCompiledIndexDecl(rec.getIndexName(), IndexKind.BTREE,
-                                    rec.getKeyFieldNames());
-                        } else {
-                            secondaryIndexes.add(new AqlCompiledIndexDecl(rec.getIndexName(),
-                                    rec.getIndexType() == IndexType.BTREE ? IndexKind.BTREE : IndexKind.RTREE, rec
-                                            .getKeyFieldNames()));
-                        }
-                    }
+    public List<Index> getDatasetIndexes(String dataverseName, String datasetName) throws AlgebricksException {
+        try {
+            return metadataManager.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
 
-                    if (datasetRecord.getType() == DatasetType.INTERNAL) {
-                        acdd = new AqlCompiledInternalDatasetDetails(id.getPartitioningKey(),
-                                partitioningEvalFactories, id.getNodeGroupName(), primaryIndex, secondaryIndexes);
-                    } else {
-                        acdd = new AqlCompiledFeedDatasetDetails(id.getPartitioningKey(), partitioningEvalFactories,
-                                id.getNodeGroupName(), primaryIndex, secondaryIndexes,
-                                ((FeedDatasetDetails) id).getAdapter(), ((FeedDatasetDetails) id).getProperties(),
-                                ((FeedDatasetDetails) id).getFunctionIdentifier(), ((FeedDatasetDetails) id)
-                                        .getFeedState().toString());
-                    }
-                    break;
-                }
+    public Index getDatasetPrimaryIndex(String dataverseName, String datasetName) throws AlgebricksException {
+        try {
+            return metadataManager.getIndex(mdTxnCtx, dataverseName, datasetName, datasetName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
 
-                case EXTERNAL: {
-                    acdd = new AqlCompiledExternalDatasetDetails(
-                            ((ExternalDatasetDetails) datasetRecord.getDatasetDetails()).getAdapter(),
-                            ((ExternalDatasetDetails) datasetRecord.getDatasetDetails()).getProperties());
-                    break;
-                }
-
-            }
-            AqlCompiledDatasetDecl dataset = new AqlCompiledDatasetDecl(datasetRecord.getDatasetName(),
-                    datasetRecord.getDatatypeName(), datasetRecord.getType(), acdd);
-            return dataset;
-
-        } catch (Exception e) {
-            throw new IllegalStateException(e);
+    public Index getIndex(String dataverseName, String datasetName, String indexName) throws AlgebricksException {
+        try {
+            return metadataManager.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
         }
     }
 
@@ -239,24 +203,8 @@
         this.outputFile = outputFile;
     }
 
-    public List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> computePartitioningEvaluatorFactories(
-            List<String> partitioningExprs, ARecordType recType) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> evalFactories = new ArrayList<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>>(
-                partitioningExprs.size());
-        for (String expr : partitioningExprs) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFact = null;
-            try {
-                evalFact = format.partitioningEvaluatorFactory(recType, expr);
-            } catch (AlgebricksException e) {
-                throw new IllegalStateException(e);
-            }
-            evalFactories.add(evalFact);
-        }
-        return evalFactories;
-    }
-
     public Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
-            String datasetName, String targetIdxName) throws AlgebricksException, MetadataException {
+            String datasetName, String targetIdxName) throws AlgebricksException {
         FileSplit[] splits = splitsForInternalOrFeedDataset(datasetName, targetIdxName);
         IFileSplitProvider splitProvider = new ConstantFileSplitProvider(splits);
         String[] loc = new String[splits.length];
@@ -268,23 +216,20 @@
     }
 
     private FileSplit[] splitsForInternalOrFeedDataset(String datasetName, String targetIdxName)
-            throws AlgebricksException, MetadataException {
+            throws AlgebricksException {
 
         File relPathFile = new File(getRelativePath(datasetName + "_idx_" + targetIdxName));
-        AqlCompiledDatasetDecl adecl = findDataset(datasetName);
-        if (adecl.getDatasetType() != DatasetType.INTERNAL & adecl.getDatasetType() != DatasetType.FEED) {
+        Dataset dataset = findDataset(datasetName);
+        if (dataset.getDatasetType() != DatasetType.INTERNAL & dataset.getDatasetType() != DatasetType.FEED) {
             throw new AlgebricksException("Not an internal or feed dataset");
         }
-        AqlCompiledInternalDatasetDetails compiledDatasetDetails = (AqlCompiledInternalDatasetDetails) adecl
-                .getAqlCompiledDatasetDetails();
-        List<String> nodeGroup = findNodeGroupNodeNames(compiledDatasetDetails.getNodegroupName());
-
+        InternalDatasetDetails datasetDetails = (InternalDatasetDetails) dataset.getDatasetDetails();
+        List<String> nodeGroup = findNodeGroupNodeNames(datasetDetails.getNodeGroupName());
         if (nodeGroup == null) {
-            throw new AlgebricksException("Couldn't find node group " + compiledDatasetDetails.getNodegroupName());
+            throw new AlgebricksException("Couldn't find node group " + datasetDetails.getNodeGroupName());
         }
 
         List<FileSplit> splitArray = new ArrayList<FileSplit>();
-
         for (String nd : nodeGroup) {
             String[] nodeStores = stores.get(nd);
             if (nodeStores == null) {
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
index 4cc180b..e4c7ba2 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,16 +15,20 @@
 
 package edu.uci.ics.asterix.metadata.declared;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
@@ -39,14 +43,11 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.UnorderedPartitionedProperty;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
 
 public class AqlDataSource implements IDataSource<AqlSourceId> {
 
     private AqlSourceId id;
-    private AqlCompiledDatasetDecl adecl;
+    private Dataset dataset;
     private IAType[] schemaTypes;
     private INodeDomain domain;
     private AqlDataSourceType datasourceType;
@@ -58,75 +59,83 @@
         EXTERNAL_FEED
     }
 
-    public AqlDataSource(AqlSourceId id, AqlCompiledDatasetDecl adecl, IAType itemType, AqlDataSourceType datasourceType)
+    public AqlDataSource(AqlSourceId id, Dataset dataset, IAType itemType, AqlDataSourceType datasourceType)
             throws AlgebricksException {
         this.id = id;
-        this.adecl = adecl;
+        this.dataset = dataset;
         this.datasourceType = datasourceType;
-        switch (datasourceType) {
-            case FEED:
-                initFeedDataset(itemType, adecl);
-            case INTERNAL: {
-                initInternalDataset(itemType);
-                break;
+        try {
+            switch (datasourceType) {
+                case FEED:
+                    initFeedDataset(itemType, dataset);
+                case INTERNAL: {
+                    initInternalDataset(itemType);
+                    break;
+                }
+                case EXTERNAL_FEED:
+                case EXTERNAL: {
+                    initExternalDataset(itemType);
+                    break;
+                }
+                default: {
+                    throw new IllegalArgumentException();
+                }
             }
-            case EXTERNAL_FEED:
-            case EXTERNAL: {
-                initExternalDataset(itemType);
-                break;
-            }
-            default: {
-                throw new IllegalArgumentException();
-            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
         }
     }
 
-    public AqlDataSource(AqlSourceId id, AqlCompiledDatasetDecl adecl, IAType itemType) throws AlgebricksException {
+    public AqlDataSource(AqlSourceId id, Dataset dataset, IAType itemType) throws AlgebricksException {
         this.id = id;
-        this.adecl = adecl;
-        switch (adecl.getDatasetType()) {
-            case FEED:
-                initFeedDataset(itemType, adecl);
-                break;
-            case INTERNAL:
-                initInternalDataset(itemType);
-                break;
-            case EXTERNAL: {
-                initExternalDataset(itemType);
-                break;
+        this.dataset = dataset;
+        try {
+            switch (dataset.getDatasetType()) {
+                case FEED:
+                    initFeedDataset(itemType, dataset);
+                    break;
+                case INTERNAL:
+                    initInternalDataset(itemType);
+                    break;
+                case EXTERNAL: {
+                    initExternalDataset(itemType);
+                    break;
+                }
+                default: {
+                    throw new IllegalArgumentException();
+                }
             }
-            default: {
-                throw new IllegalArgumentException();
-            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
         }
     }
 
-    private void initInternalDataset(IAType itemType) {
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                .getPartitioningFunctions(adecl);
-        int n = partitioningFunctions.size();
+    // TODO: Seems like initFeedDataset() could simply call this method.
+    private void initInternalDataset(IAType itemType) throws IOException {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        ARecordType recordType = (ARecordType) itemType;
+        int n = partitioningKeys.size();
         schemaTypes = new IAType[n + 1];
         for (int i = 0; i < n; i++) {
-            schemaTypes[i] = partitioningFunctions.get(i).third;
+            schemaTypes[i] = recordType.getFieldType(partitioningKeys.get(i));
         }
         schemaTypes[n] = itemType;
-        domain = new AsterixNodeGroupDomain(DatasetUtils.getNodegroupName(adecl));
+        domain = new AsterixNodeGroupDomain(DatasetUtils.getNodegroupName(dataset));
     }
 
-    private void initFeedDataset(IAType itemType, AqlCompiledDatasetDecl decl) {
-
-        if (decl.getAqlCompiledDatasetDetails() instanceof AqlCompiledExternalDatasetDetails) {
+    private void initFeedDataset(IAType itemType, Dataset dataset) throws IOException {
+        if (dataset.getDatasetDetails() instanceof ExternalDatasetDetails) {
             initExternalDataset(itemType);
         } else {
-            List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions = DatasetUtils
-                    .getPartitioningFunctions(adecl);
-            int n = partitioningFunctions.size();
+            List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+            int n = partitioningKeys.size();
             schemaTypes = new IAType[n + 1];
+            ARecordType recordType = (ARecordType) itemType;
             for (int i = 0; i < n; i++) {
-                schemaTypes[i] = partitioningFunctions.get(i).third;
+                schemaTypes[i] = recordType.getFieldType(partitioningKeys.get(i));
             }
             schemaTypes[n] = itemType;
-            domain = new AsterixNodeGroupDomain(DatasetUtils.getNodegroupName(adecl));
+            domain = new AsterixNodeGroupDomain(DatasetUtils.getNodegroupName(dataset));
         }
     }
 
@@ -152,8 +161,8 @@
         return id;
     }
 
-    public AqlCompiledDatasetDecl getCompiledDatasetDecl() {
-        return adecl;
+    public Dataset getDataset() {
+        return dataset;
     }
 
     @Override
@@ -170,7 +179,7 @@
 
     @Override
     public IDataSourcePropertiesProvider getPropertiesProvider() {
-        return new AqlDataSourcePartitioningProvider(adecl.getDatasetType(), domain);
+        return new AqlDataSourcePartitioningProvider(dataset.getDatasetType(), domain);
     }
 
     @Override
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
index 17f5402..81f2329 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
@@ -15,37 +15,40 @@
 
 package edu.uci.ics.asterix.metadata.declared;
 
+import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AqlIndex implements IDataSourceIndex<String, AqlSourceId> {
 
-    private final AqlCompiledIndexDecl acid;
-    private final AqlCompiledMetadataDeclarations acmd;
-    private final String datasetName;
+    private final Index index;
+    private final String dataset;
+    private final String dataverse;
+    private final AqlMetadataProvider metadataProvider;
 
     // Every transactions needs to work with its own instance of an
     // AqlMetadataProvider.
-    public AqlIndex(AqlCompiledIndexDecl acid, AqlCompiledMetadataDeclarations acmd, String datasetName) {
-        this.acid = acid;
-        this.acmd = acmd;
-        this.datasetName = datasetName;
+    public AqlIndex(Index index, String dataverse, String dataset, AqlMetadataProvider metadatProvider) {
+        this.index = index;
+        this.dataset = dataset;
+        this.dataverse = dataverse;
+        this.metadataProvider = metadatProvider;
     }
 
+    // TODO: Maybe Index can directly implement IDataSourceIndex<String, AqlSourceId>
     @Override
     public IDataSource<AqlSourceId> getDataSource() {
         try {
-            AqlSourceId asid = new AqlSourceId(acmd.getDataverseName(), datasetName);
-            return AqlMetadataProvider.lookupSourceInMetadata(acmd, asid);
-        } catch (AlgebricksException e) {
+            AqlSourceId asid = new AqlSourceId(dataverse, dataset);
+            return metadataProvider.lookupSourceInMetadata(asid);
+        } catch (Exception me) {
             return null;
         }
     }
 
     @Override
     public String getId() {
-        return acid.getIndexName();
+        return index.getIndexName();
     }
 
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlLogicalPlanAndMetadataImpl.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlLogicalPlanAndMetadataImpl.java
index 84ef40e..5bf0351 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlLogicalPlanAndMetadataImpl.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlLogicalPlanAndMetadataImpl.java
@@ -18,10 +18,10 @@
 import java.util.ArrayList;
 import java.util.Map;
 
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksAbsolutePartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
 
 public class AqlLogicalPlanAndMetadataImpl implements ILogicalPlanAndMetadata {
 
@@ -45,8 +45,7 @@
 
     @Override
     public AlgebricksPartitionConstraint getClusterLocations() {
-        AqlCompiledMetadataDeclarations metadata = metadataProvider.getMetadataDeclarations();
-        Map<String, String[]> stores = metadata.getAllStores();
+        Map<String, String[]> stores = metadataProvider.getAllStores();
         ArrayList<String> locs = new ArrayList<String>();
         for (String k : stores.keySet()) {
             String[] nodeStores = stores.get(k);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataImplConfig.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataImplConfig.java
new file mode 100644
index 0000000..4ea752b
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataImplConfig.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.declared;
+
+public class AqlMetadataImplConfig {
+    private final boolean useInstantLock;
+
+    public AqlMetadataImplConfig(boolean useInstantLock) {
+        this.useInstantLock = useInstantLock;
+    }
+
+    public boolean isInstantLock() {
+        return useInstantLock;
+    }
+}
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
index f768e0e..e1f707c 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,93 +16,228 @@
 package edu.uci.ics.asterix.metadata.declared;
 
 import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.context.TransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
 import edu.uci.ics.asterix.common.parse.IParseFileSplitsDecl;
-import edu.uci.ics.asterix.dataflow.base.IAsterixApplicationContextInfo;
 import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
-import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.adapter.factory.ITypedDatasetAdapterFactory;
 import edu.uci.ics.asterix.external.data.operator.ExternalDataScanOperatorDescriptor;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
-import edu.uci.ics.asterix.feed.mgmt.FeedId;
-import edu.uci.ics.asterix.feed.operator.FeedIntakeOperatorDescriptor;
-import edu.uci.ics.asterix.feed.operator.FeedMessageOperatorDescriptor;
+import edu.uci.ics.asterix.external.data.operator.FeedIntakeOperatorDescriptor;
+import edu.uci.ics.asterix.external.data.operator.FeedMessageOperatorDescriptor;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
+import edu.uci.ics.asterix.external.feed.lifecycle.FeedId;
+import edu.uci.ics.asterix.external.feed.lifecycle.IFeedMessage;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl.IndexKind;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
+import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
+import edu.uci.ics.asterix.metadata.dataset.hints.DatasetHints.DatasetCardinalityHint;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
+import edu.uci.ics.asterix.metadata.entities.Datatype;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.FeedDatasetDetails;
+import edu.uci.ics.asterix.metadata.entities.Index;
+import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.asterix.runtime.transaction.TreeIndexInsertUpdateDeleteOperatorDescriptor;
+import edu.uci.ics.asterix.runtime.base.AsterixTupleFilterFactory;
+import edu.uci.ics.asterix.runtime.formats.FormatUtils;
+import edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat;
+import edu.uci.ics.asterix.runtime.job.listener.JobEventListenerFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexInstantSearchOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexModificationOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexSearchOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexModificationOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexSearchOperationCallbackFactory;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionRuntimeProvider;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.jobgen.impl.JobGenContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.std.SinkWriterRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksAbsolutePartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
+import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenHelper;
+import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IResultSerializerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.std.SinkWriterRuntimeFactory;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IResultSerializerFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.ShortPointable;
 import edu.uci.ics.hyracks.dataflow.std.file.ConstantFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.file.FileScanOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallbackFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOp;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.dataflow.RTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.LSMTreeIndexInsertUpdateDeleteOperatorDescriptor;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexInsertUpdateDeleteOperator;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.dataflow.LSMRTreeDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.dataflow.RTreeSearchOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.rtree.tuples.RTreeTypeAwareTupleWriterFactory;
+import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
+import edu.uci.ics.hyracks.storage.am.rtree.linearize.HilbertDoubleComparatorFactory;
+import edu.uci.ics.hyracks.storage.am.rtree.linearize.ZCurveDoubleComparatorFactory;
+import edu.uci.ics.hyracks.storage.am.rtree.linearize.ZCurveIntComparatorFactory;
 
 public class AqlMetadataProvider implements IMetadataProvider<AqlSourceId, String> {
-    private final long txnId;
+    private static Logger LOGGER = Logger.getLogger(AqlMetadataProvider.class.getName());
+    private MetadataTransactionContext mdTxnCtx;
     private boolean isWriteTransaction;
-    private final AqlCompiledMetadataDeclarations metadata;
+    private Map<String, String[]> stores;
+    private Map<String, String> config;
+    private IAWriterFactory writerFactory;
+    private FileSplit outputFile;
+    private ResultSetId resultSetId;
+    private IResultSerializerFactoryProvider resultSerializerFactoryProvider;
 
-    public AqlMetadataProvider(long txnId, boolean isWriteTransaction, AqlCompiledMetadataDeclarations metadata) {
-        this.txnId = txnId;
-        this.isWriteTransaction = isWriteTransaction;
-        this.metadata = metadata;
+    private final Dataverse defaultDataverse;
+    private JobId jobId;
+
+    private static final Map<String, String> adapterFactoryMapping = initializeAdapterFactoryMapping();
+
+    public String getPropertyValue(String propertyName) {
+        return config.get(propertyName);
+    }
+
+    public void setConfig(Map<String, String> config) {
+        this.config = config;
+    }
+
+    public Map<String, String[]> getAllStores() {
+        return stores;
+    }
+
+    public Map<String, String> getConfig() {
+        return config;
+    }
+
+    public AqlMetadataProvider(Dataverse defaultDataverse) {
+        this.defaultDataverse = defaultDataverse;
+        this.stores = AsterixProperties.INSTANCE.getStores();
+    }
+
+    public void setJobId(JobId jobId) {
+        this.jobId = jobId;
+    }
+
+    public Dataverse getDefaultDataverse() {
+        return defaultDataverse;
+    }
+
+    public String getDefaultDataverseName() {
+        return defaultDataverse == null ? null : defaultDataverse.getDataverseName();
+    }
+
+    public void setWriteTransaction(boolean writeTransaction) {
+        this.isWriteTransaction = writeTransaction;
+    }
+
+    public void setWriterFactory(IAWriterFactory writerFactory) {
+        this.writerFactory = writerFactory;
+    }
+
+    public void setMetadataTxnContext(MetadataTransactionContext mdTxnCtx) {
+        this.mdTxnCtx = mdTxnCtx;
+    }
+
+    public MetadataTransactionContext getMetadataTxnContext() {
+        return mdTxnCtx;
+    }
+
+    public IAWriterFactory getWriterFactory() {
+        return this.writerFactory;
+    }
+
+    public FileSplit getOutputFile() {
+        return outputFile;
+    }
+
+    public void setOutputFile(FileSplit outputFile) {
+        this.outputFile = outputFile;
+    }
+
+    public ResultSetId getResultSetId() {
+        return resultSetId;
+    }
+
+    public void setResultSetId(ResultSetId resultSetId) {
+        this.resultSetId = resultSetId;
+    }
+
+    public void setResultSerializerFactoryProvider(IResultSerializerFactoryProvider rafp) {
+        this.resultSerializerFactoryProvider = rafp;
+    }
+
+    public IResultSerializerFactoryProvider getResultSerializerFactoryProvider() {
+        return resultSerializerFactoryProvider;
     }
 
     @Override
     public AqlDataSource findDataSource(AqlSourceId id) throws AlgebricksException {
         AqlSourceId aqlId = (AqlSourceId) id;
-        return lookupSourceInMetadata(metadata, aqlId);
-    }
-
-    public AqlCompiledMetadataDeclarations getMetadataDeclarations() {
-        return metadata;
+        try {
+            return lookupSourceInMetadata(aqlId);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
     }
 
     public boolean isWriteTransaction() {
@@ -112,111 +247,130 @@
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getScannerRuntime(
             IDataSource<AqlSourceId> dataSource, List<LogicalVariable> scanVariables,
-            List<LogicalVariable> projectVariables, boolean projectPushed, JobGenContext context,
-            JobSpecification jobSpec) throws AlgebricksException {
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(dataSource.getId().getDatasetName());
-        if (adecl == null) {
-            throw new AlgebricksException("Unknown dataset " + dataSource.getId().getDatasetName());
-        }
-        switch (adecl.getDatasetType()) {
-            case FEED:
-                if (dataSource instanceof ExternalFeedDataSource) {
-                    return buildExternalDatasetScan(jobSpec, adecl, dataSource);
-                } else {
-                    return buildInternalDatasetScan(jobSpec, adecl, dataSource, context);
+            List<LogicalVariable> projectVariables, boolean projectPushed, IOperatorSchema opSchema,
+            IVariableTypeEnvironment typeEnv, JobGenContext context, JobSpecification jobSpec, Object implConfig)
+            throws AlgebricksException {
+        Dataset dataset;
+        try {
+            dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataSource.getId().getDataverseName(), dataSource
+                    .getId().getDatasetName());
+
+            if (dataset == null) {
+                throw new AlgebricksException("Unknown dataset " + dataSource.getId().getDatasetName()
+                        + " in dataverse " + dataSource.getId().getDataverseName());
+            }
+            switch (dataset.getDatasetType()) {
+                case FEED:
+                    if (dataSource instanceof ExternalFeedDataSource) {
+                        return buildExternalDatasetScan(jobSpec, dataset, dataSource);
+                    } else {
+                        return buildInternalDatasetScan(jobSpec, scanVariables, opSchema, typeEnv, dataset, dataSource,
+                                context, implConfig);
+
+                    }
+                case INTERNAL: {
+                    return buildInternalDatasetScan(jobSpec, scanVariables, opSchema, typeEnv, dataset, dataSource,
+                            context, implConfig);
                 }
-
-            case INTERNAL: {
-                return buildInternalDatasetScan(jobSpec, adecl, dataSource, context);
+                case EXTERNAL: {
+                    return buildExternalDatasetScan(jobSpec, dataset, dataSource);
+                }
+                default: {
+                    throw new IllegalArgumentException();
+                }
             }
-
-            case EXTERNAL: {
-                return buildExternalDatasetScan(jobSpec, adecl, dataSource);
-            }
-
-            default: {
-                throw new IllegalArgumentException();
-            }
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
         }
     }
 
     private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildInternalDatasetScan(JobSpecification jobSpec,
-            AqlCompiledDatasetDecl acedl, IDataSource<AqlSourceId> dataSource, JobGenContext context)
-            throws AlgebricksException {
+            List<LogicalVariable> outputVars, IOperatorSchema opSchema, IVariableTypeEnvironment typeEnv,
+            Dataset dataset, IDataSource<AqlSourceId> dataSource, JobGenContext context, Object implConfig)
+            throws AlgebricksException, MetadataException {
         AqlSourceId asid = dataSource.getId();
+        String dataverseName = asid.getDataverseName();
         String datasetName = asid.getDatasetName();
-        String indexName = DatasetUtils.getPrimaryIndex(acedl).getIndexName();
-
-        try {
-            return buildBtreeRuntime(metadata, context, jobSpec, datasetName, acedl, indexName, null, null, true, true);
-        } catch (AlgebricksException e) {
-            throw new AlgebricksException(e);
-        }
+        Index primaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, datasetName);
+        return buildBtreeRuntime(jobSpec, outputVars, opSchema, typeEnv, context, false, dataset,
+                primaryIndex.getIndexName(), null, null, true, true, implConfig);
     }
 
     private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildExternalDatasetScan(JobSpecification jobSpec,
-            AqlCompiledDatasetDecl acedl, IDataSource<AqlSourceId> dataSource) throws AlgebricksException {
-        String itemTypeName = acedl.getItemTypeName();
-        IAType itemType;
-        try {
-            itemType = metadata.findType(itemTypeName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
+            Dataset dataset, IDataSource<AqlSourceId> dataSource) throws AlgebricksException, MetadataException {
+        String itemTypeName = dataset.getItemTypeName();
+        IAType itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(), itemTypeName)
+                .getDatatype();
         if (dataSource instanceof ExternalFeedDataSource) {
-            AqlCompiledFeedDatasetDetails acfdd = (AqlCompiledFeedDatasetDetails) ((ExternalFeedDataSource) dataSource)
-                    .getCompiledDatasetDecl().getAqlCompiledDatasetDetails();
-
-            return buildFeedIntakeRuntime(jobSpec, metadata.getDataverseName(), acedl.getName(), itemType, acfdd,
-                    metadata.getFormat());
+            return buildFeedIntakeRuntime(jobSpec, dataset);
         } else {
             return buildExternalDataScannerRuntime(jobSpec, itemType,
-                    (AqlCompiledExternalDatasetDetails) acedl.getAqlCompiledDatasetDetails(), metadata.getFormat());
+                    (ExternalDatasetDetails) dataset.getDatasetDetails(), NonTaggedDataFormat.INSTANCE);
         }
     }
 
     @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildExternalDataScannerRuntime(
-            JobSpecification jobSpec, IAType itemType, AqlCompiledExternalDatasetDetails decl, IDataFormat format)
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildExternalDataScannerRuntime(
+            JobSpecification jobSpec, IAType itemType, ExternalDatasetDetails datasetDetails, IDataFormat format)
             throws AlgebricksException {
         if (itemType.getTypeTag() != ATypeTag.RECORD) {
             throw new AlgebricksException("Can only scan datasets of records.");
         }
 
+        IGenericDatasetAdapterFactory adapterFactory;
         IDatasourceAdapter adapter;
+        String adapterName;
+        DatasourceAdapter adapterEntity;
+        String adapterFactoryClassname;
         try {
-            adapter = (IDatasourceAdapter) Class.forName(decl.getAdapter()).newInstance();
+            adapterName = datasetDetails.getAdapter();
+            adapterEntity = MetadataManager.INSTANCE.getAdapter(mdTxnCtx, MetadataConstants.METADATA_DATAVERSE_NAME,
+                    adapterName);
+            if (adapterEntity != null) {
+                adapterFactoryClassname = adapterEntity.getClassname();
+                adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+            } else {
+                adapterFactoryClassname = adapterFactoryMapping.get(adapterName);
+                if (adapterFactoryClassname == null) {
+                    throw new AlgebricksException(" Unknown adapter :" + adapterName);
+                }
+                adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+            }
+
+            adapter = ((IGenericDatasetAdapterFactory) adapterFactory).createAdapter(datasetDetails.getProperties(),
+                    itemType);
+        } catch (AlgebricksException ae) {
+            throw ae;
         } catch (Exception e) {
             e.printStackTrace();
-            throw new AlgebricksException("unable to load the adapter class " + e);
+            throw new AlgebricksException("Unable to create adapter " + e);
         }
 
         if (!(adapter.getAdapterType().equals(IDatasourceAdapter.AdapterType.READ) || adapter.getAdapterType().equals(
                 IDatasourceAdapter.AdapterType.READ_WRITE))) {
-            throw new AlgebricksException("external dataset does not support read");
+            throw new AlgebricksException("external dataset adapter does not support read operation");
         }
         ARecordType rt = (ARecordType) itemType;
-        try {
-            adapter.configure(decl.getProperties(), itemType);
-        } catch (Exception e) {
-            e.printStackTrace();
-            throw new AlgebricksException("unable to configure the datasource adapter " + e);
-        }
 
         ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
         RecordDescriptor scannerDesc = new RecordDescriptor(new ISerializerDeserializer[] { payloadSerde });
 
         ExternalDataScanOperatorDescriptor dataScanner = new ExternalDataScanOperatorDescriptor(jobSpec,
-                decl.getAdapter(), decl.getProperties(), rt, scannerDesc);
-        AlgebricksPartitionConstraint constraint = adapter.getPartitionConstraint();
+                adapterFactoryClassname, datasetDetails.getProperties(), rt, scannerDesc);
+
+        AlgebricksPartitionConstraint constraint;
+        try {
+            constraint = adapter.getPartitionConstraint();
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
+
         return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(dataScanner, constraint);
     }
 
     @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildScannerRuntime(
-            JobSpecification jobSpec, IAType itemType, IParseFileSplitsDecl decl, IDataFormat format)
-            throws AlgebricksException {
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildScannerRuntime(JobSpecification jobSpec,
+            IAType itemType, IParseFileSplitsDecl decl, IDataFormat format) throws AlgebricksException {
         if (itemType.getTypeTag() != ATypeTag.RECORD) {
             throw new AlgebricksException("Can only scan datasets of records.");
         }
@@ -237,266 +391,234 @@
     }
 
     @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedIntakeRuntime(
-            JobSpecification jobSpec, String dataverse, String dataset, IAType itemType,
-            AqlCompiledFeedDatasetDetails decl, IDataFormat format) throws AlgebricksException {
-        if (itemType.getTypeTag() != ATypeTag.RECORD) {
-            throw new AlgebricksException("Can only consume records.");
-        }
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedIntakeRuntime(JobSpecification jobSpec,
+            Dataset dataset) throws AlgebricksException {
+
+        FeedDatasetDetails datasetDetails = (FeedDatasetDetails) dataset.getDatasetDetails();
+        DatasourceAdapter adapterEntity;
         IDatasourceAdapter adapter;
+        IAdapterFactory adapterFactory;
+        IAType adapterOutputType;
+        String adapterName;
+        String adapterFactoryClassname;
+
         try {
-            adapter = (IDatasourceAdapter) Class.forName(decl.getAdapter()).newInstance();
+            adapterName = datasetDetails.getAdapterFactory();
+            adapterEntity = MetadataManager.INSTANCE.getAdapter(mdTxnCtx, MetadataConstants.METADATA_DATAVERSE_NAME,
+                    adapterName);
+            if (adapterEntity != null) {
+                adapterFactoryClassname = adapterEntity.getClassname();
+                adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+            } else {
+                adapterFactoryClassname = adapterFactoryMapping.get(adapterName);
+                if (adapterFactoryClassname != null) {
+                } else {
+                    // adapterName has been provided as a fully qualified classname 
+                    adapterFactoryClassname = adapterName;
+                }
+                adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
+            }
+
+            if (adapterFactory instanceof ITypedDatasetAdapterFactory) {
+                adapter = ((ITypedDatasetAdapterFactory) adapterFactory).createAdapter(datasetDetails.getProperties());
+                adapterOutputType = ((ITypedDatasourceAdapter) adapter).getAdapterOutputType();
+            } else if (adapterFactory instanceof IGenericDatasetAdapterFactory) {
+                String outputTypeName = datasetDetails.getProperties().get(IGenericDatasetAdapterFactory.KEY_TYPE_NAME);
+                adapterOutputType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(),
+                        outputTypeName).getDatatype();
+                adapter = ((IGenericDatasetAdapterFactory) adapterFactory).createAdapter(
+                        datasetDetails.getProperties(), adapterOutputType);
+            } else {
+                throw new IllegalStateException(" Unknown factory type for " + adapterFactoryClassname);
+            }
+        } catch (AlgebricksException ae) {
+            throw ae;
         } catch (Exception e) {
             e.printStackTrace();
-            throw new AlgebricksException("unable to load the adapter class " + e);
+            throw new AlgebricksException("unable to create adapter  " + e);
         }
 
-        ARecordType rt = (ARecordType) itemType;
-        try {
-            adapter.configure(decl.getProperties(), itemType);
-        } catch (Exception e) {
-            e.printStackTrace();
-            throw new AlgebricksException("unable to configure the datasource adapter " + e);
-        }
-
-        ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
+        ISerializerDeserializer payloadSerde = NonTaggedDataFormat.INSTANCE.getSerdeProvider()
+                .getSerializerDeserializer(adapterOutputType);
         RecordDescriptor feedDesc = new RecordDescriptor(new ISerializerDeserializer[] { payloadSerde });
 
-        FeedIntakeOperatorDescriptor feedIngestor = new FeedIntakeOperatorDescriptor(jobSpec, new FeedId(dataverse,
-                dataset), decl.getAdapter(), decl.getProperties(), rt, feedDesc);
+        FeedIntakeOperatorDescriptor feedIngestor = new FeedIntakeOperatorDescriptor(jobSpec, new FeedId(
+                dataset.getDataverseName(), dataset.getDatasetName()), adapterFactoryClassname,
+                datasetDetails.getProperties(), (ARecordType) adapterOutputType, feedDesc);
 
-        AlgebricksPartitionConstraint constraint = adapter.getPartitionConstraint();
+        AlgebricksPartitionConstraint constraint = null;
+        try {
+            constraint = adapter.getPartitionConstraint();
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
         return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(feedIngestor, constraint);
     }
 
-    @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedMessengerRuntime(
-            JobSpecification jobSpec, AqlCompiledMetadataDeclarations metadata, AqlCompiledFeedDatasetDetails decl,
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildFeedMessengerRuntime(
+            AqlMetadataProvider metadataProvider, JobSpecification jobSpec, FeedDatasetDetails datasetDetails,
             String dataverse, String dataset, List<IFeedMessage> feedMessages) throws AlgebricksException {
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc;
-        try {
-            spPc = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset, dataset);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
+        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc = metadataProvider
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverse, dataset, dataset);
         FeedMessageOperatorDescriptor feedMessenger = new FeedMessageOperatorDescriptor(jobSpec, dataverse, dataset,
                 feedMessages);
-
         return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(feedMessenger, spPc.second);
     }
 
-    @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildBtreeRuntime(
-            AqlCompiledMetadataDeclarations metadata, JobGenContext context, JobSpecification jobSpec,
-            String datasetName, AqlCompiledDatasetDecl ddecl, String indexName, int[] lowKeyFields,
-            int[] highKeyFields, boolean lowKeyInclusive, boolean highKeyInclusive) throws AlgebricksException {
-        String itemTypeName = ddecl.getItemTypeName();
-        IAType itemType;
-        try {
-            itemType = metadata.findType(itemTypeName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildBtreeRuntime(JobSpecification jobSpec,
+            List<LogicalVariable> outputVars, IOperatorSchema opSchema, IVariableTypeEnvironment typeEnv,
+            JobGenContext context, boolean retainInput, Dataset dataset, String indexName, int[] lowKeyFields,
+            int[] highKeyFields, boolean lowKeyInclusive, boolean highKeyInclusive, Object implConfig)
+            throws AlgebricksException {
         boolean isSecondary = true;
-        AqlCompiledIndexDecl primIdxDecl = DatasetUtils.getPrimaryIndex(ddecl);
-
-        if (primIdxDecl != null) {
-            isSecondary = !indexName.equals(primIdxDecl.getIndexName());
-        }
-
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(ddecl).size();
-        ISerializerDeserializer[] recordFields;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        int numSecondaryKeys = 0;
-        int i = 0;
-        if (isSecondary) {
-            AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(ddecl, indexName);
-            if (cid == null) {
-                throw new AlgebricksException("Code generation error: no index " + indexName + " for dataset "
-                        + datasetName);
-            }
-            List<String> secondaryKeyFields = cid.getFieldExprs();
-            numSecondaryKeys = secondaryKeyFields.size();
-            int numKeys = numSecondaryKeys + numPrimaryKeys;
-            recordFields = new ISerializerDeserializer[numKeys];
-            typeTraits = new ITypeTraits[numKeys];
-            // comparatorFactories = new
-            // IBinaryComparatorFactory[numSecondaryKeys];
-            comparatorFactories = new IBinaryComparatorFactory[numKeys];
-            if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                throw new AlgebricksException("Only record types can be indexed.");
-            }
-            ARecordType recType = (ARecordType) itemType;
-            for (i = 0; i < numSecondaryKeys; i++) {
-                IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(i), recType);
-                ISerializerDeserializer keySerde = metadata.getFormat().getSerdeProvider()
-                        .getSerializerDeserializer(keyType);
-                recordFields[i] = keySerde;
-                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                        keyType, OrderKind.ASC);
-                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            }
-        } else {
-            recordFields = new ISerializerDeserializer[numPrimaryKeys + 1];
-            comparatorFactories = new IBinaryComparatorFactory[numPrimaryKeys];
-            typeTraits = new ITypeTraits[numPrimaryKeys + 1];
-            ISerializerDeserializer payloadSerde = metadata.getFormat().getSerdeProvider()
-                    .getSerializerDeserializer(itemType);
-            recordFields[numPrimaryKeys] = payloadSerde;
-            typeTraits[numPrimaryKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
-        }
-
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(ddecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = metadata.getFormat().getSerdeProvider()
-                    .getSerializerDeserializer(keyType);
-            recordFields[i] = keySerde;
-            // if (!isSecondary) {
-            comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(keyType,
-                    OrderKind.ASC);
-            // }
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-
-        ITreeIndexFrameFactory interiorFrameFactory = createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = createBTreeNSMLeafFrameFactory(typeTraits);
-
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-        RecordDescriptor recDesc = new RecordDescriptor(recordFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc;
         try {
-            spPc = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
+            Index primaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), dataset.getDatasetName());
+            if (primaryIndex != null) {
+                isSecondary = !indexName.equals(primaryIndex.getIndexName());
+            }
+            int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
+            RecordDescriptor outputRecDesc = JobGenHelper.mkRecordDescriptor(typeEnv, opSchema, context);
+            int numKeys = numPrimaryKeys;
+            int keysStartIndex = outputRecDesc.getFieldCount() - numKeys - 1;
+            ITypeTraits[] typeTraits = null;
+            int[] bloomFilterKeyFields;
+            if (isSecondary) {
+                Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                        dataset.getDatasetName(), indexName);
+                int numSecondaryKeys = secondaryIndex.getKeyFieldNames().size();
+                numKeys += numSecondaryKeys;
+                keysStartIndex = outputVars.size() - numKeys;
+                typeTraits = JobGenHelper.variablesToTypeTraits(outputVars, keysStartIndex, numKeys, typeEnv, context);
+                bloomFilterKeyFields = new int[numSecondaryKeys];
+                for (int i = 0; i < numSecondaryKeys; i++) {
+                    bloomFilterKeyFields[i] = i;
+                }
+            } else {
+                typeTraits = JobGenHelper.variablesToTypeTraits(outputVars, keysStartIndex, numKeys + 1, typeEnv,
+                        context);
+                bloomFilterKeyFields = new int[numPrimaryKeys];
+                for (int i = 0; i < numPrimaryKeys; i++) {
+                    bloomFilterKeyFields[i] = i;
+                }
+            }
+            IBinaryComparatorFactory[] comparatorFactories = JobGenHelper.variablesToAscBinaryComparatorFactories(
+                    outputVars, keysStartIndex, numKeys, typeEnv, context);
+
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc;
+            try {
+                spPc = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(),
+                        dataset.getDatasetName(), indexName);
+            } catch (Exception e) {
+                throw new AlgebricksException(e);
+            }
+
+            ISearchOperationCallbackFactory searchCallbackFactory = null;
+            if (isSecondary) {
+                searchCallbackFactory = new SecondaryIndexSearchOperationCallbackFactory();
+            } else {
+                JobId jobId = ((JobEventListenerFactory) jobSpec.getJobletEventListenerFactory()).getJobId();
+                int datasetId = dataset.getDatasetId();
+                int[] primaryKeyFields = new int[numPrimaryKeys];
+                for (int i = 0; i < numPrimaryKeys; i++) {
+                    primaryKeyFields[i] = i;
+                }
+
+                AqlMetadataImplConfig aqlMetadataImplConfig = (AqlMetadataImplConfig) implConfig;
+                TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+                if (aqlMetadataImplConfig != null && aqlMetadataImplConfig.isInstantLock()) {
+                    searchCallbackFactory = new PrimaryIndexInstantSearchOperationCallbackFactory(jobId, datasetId,
+                            primaryKeyFields, txnSubsystemProvider, ResourceType.LSM_BTREE);
+                } else {
+                    searchCallbackFactory = new PrimaryIndexSearchOperationCallbackFactory(jobId, datasetId,
+                            primaryKeyFields, txnSubsystemProvider, ResourceType.LSM_BTREE);
+                }
+            }
+            BTreeSearchOperatorDescriptor btreeSearchOp = new BTreeSearchOperatorDescriptor(jobSpec, outputRecDesc,
+                    appContext.getStorageManagerInterface(), appContext.getIndexLifecycleManagerProvider(), spPc.first,
+                    typeTraits, comparatorFactories, bloomFilterKeyFields, lowKeyFields, highKeyFields,
+                    lowKeyInclusive, highKeyInclusive, new LSMBTreeDataflowHelperFactory(
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    retainInput, searchCallbackFactory);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeSearchOp, spPc.second);
+
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
         }
-
-        BTreeSearchOperatorDescriptor btreeSearchOp = new BTreeSearchOperatorDescriptor(jobSpec, recDesc,
-                appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(), spPc.first,
-                interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories, true, lowKeyFields,
-                highKeyFields, lowKeyInclusive, highKeyInclusive, new BTreeDataflowHelperFactory());
-
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeSearchOp, spPc.second);
     }
 
-    @SuppressWarnings("rawtypes")
-    public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildRtreeRuntime(
-            AqlCompiledMetadataDeclarations metadata, JobGenContext context, JobSpecification jobSpec,
-            String datasetName, AqlCompiledDatasetDecl ddecl, String indexName, int[] keyFields)
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> buildRtreeRuntime(JobSpecification jobSpec,
+            List<LogicalVariable> outputVars, IOperatorSchema opSchema, IVariableTypeEnvironment typeEnv,
+            JobGenContext context, boolean retainInput, Dataset dataset, String indexName, int[] keyFields)
             throws AlgebricksException {
-        String itemTypeName = ddecl.getItemTypeName();
-        IAType itemType;
         try {
-            itemType = metadata.findType(itemTypeName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
+            ARecordType recType = (ARecordType) findType(dataset.getDataverseName(), dataset.getItemTypeName());
+            int numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
 
-        boolean isSecondary = true;
-        AqlCompiledIndexDecl primIdxDecl = DatasetUtils.getPrimaryIndex(ddecl);
-        if (primIdxDecl != null) {
-            isSecondary = !indexName.equals(primIdxDecl.getIndexName());
-        }
-
-        int numPrimaryKeys = DatasetUtils.getPartitioningFunctions(ddecl).size();
-        ISerializerDeserializer[] recordFields;
-        IBinaryComparatorFactory[] comparatorFactories;
-        ITypeTraits[] typeTraits;
-        IPrimitiveValueProviderFactory[] valueProviderFactories;
-        int numSecondaryKeys = 0;
-        int numNestedSecondaryKeyFields = 0;
-        int i = 0;
-        if (isSecondary) {
-            AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(ddecl, indexName);
-            if (cid == null) {
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+            if (secondaryIndex == null) {
                 throw new AlgebricksException("Code generation error: no index " + indexName + " for dataset "
-                        + datasetName);
+                        + dataset.getDatasetName());
             }
-            List<String> secondaryKeyFields = cid.getFieldExprs();
-            numSecondaryKeys = secondaryKeyFields.size();
-
+            List<String> secondaryKeyFields = secondaryIndex.getKeyFieldNames();
+            int numSecondaryKeys = secondaryKeyFields.size();
             if (numSecondaryKeys != 1) {
                 throw new AlgebricksException(
                         "Cannot use "
                                 + numSecondaryKeys
                                 + " fields as a key for the R-tree index. There can be only one field as a key for the R-tree index.");
             }
-
-            if (itemType.getTypeTag() != ATypeTag.RECORD) {
-                throw new AlgebricksException("Only record types can be indexed.");
-            }
-            ARecordType recType = (ARecordType) itemType;
-
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyFields.get(0), recType);
+            Pair<IAType, Boolean> keyTypePair = Index.getNonNullableKeyFieldType(secondaryKeyFields.get(0), recType);
+            IAType keyType = keyTypePair.first;
             if (keyType == null) {
                 throw new AlgebricksException("Could not find field " + secondaryKeyFields.get(0) + " in the schema.");
             }
-
-            int dimension = NonTaggedFormatUtil.getNumDimensions(keyType.getTypeTag());
-            numNestedSecondaryKeyFields = dimension * 2;
-
-            int numFields = numNestedSecondaryKeyFields + numPrimaryKeys;
-            recordFields = new ISerializerDeserializer[numFields];
-            typeTraits = new ITypeTraits[numFields];
-            comparatorFactories = new IBinaryComparatorFactory[numNestedSecondaryKeyFields];
-            valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
-
-            IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
-            for (i = 0; i < numNestedSecondaryKeyFields; i++) {
-                ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
-                        .getSerializerDeserializer(nestedKeyType);
-                recordFields[i] = keySerde;
-                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                        nestedKeyType, OrderKind.ASC);
-                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
+            int numDimensions = NonTaggedFormatUtil.getNumDimensions(keyType.getTypeTag());
+            int numNestedSecondaryKeyFields = numDimensions * 2;
+            IPrimitiveValueProviderFactory[] valueProviderFactories = new IPrimitiveValueProviderFactory[numNestedSecondaryKeyFields];
+            for (int i = 0; i < numNestedSecondaryKeyFields; i++) {
                 valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
             }
-        } else {
-            throw new AlgebricksException("R-tree can only be used as a secondary index");
+
+            RecordDescriptor outputRecDesc = JobGenHelper.mkRecordDescriptor(typeEnv, opSchema, context);
+            int keysStartIndex = outputRecDesc.getFieldCount() - numNestedSecondaryKeyFields - numPrimaryKeys;
+            if (retainInput) {
+                keysStartIndex -= numNestedSecondaryKeyFields;
+            }
+            IBinaryComparatorFactory[] comparatorFactories = JobGenHelper.variablesToAscBinaryComparatorFactories(
+                    outputVars, keysStartIndex, numNestedSecondaryKeyFields, typeEnv, context);
+            ITypeTraits[] typeTraits = JobGenHelper.variablesToTypeTraits(outputVars, keysStartIndex,
+                    numNestedSecondaryKeyFields, typeEnv, context);
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataset.getDataverseName(), dataset.getDatasetName(), indexName);
+
+            IBinaryComparatorFactory[] primaryComparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(
+                    dataset, recType, context.getBinaryComparatorFactoryProvider());
+            IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(keyType.getTypeTag());
+            ISearchOperationCallbackFactory searchCallbackFactory = new SecondaryIndexSearchOperationCallbackFactory();
+            RTreeSearchOperatorDescriptor rtreeSearchOp = new RTreeSearchOperatorDescriptor(jobSpec, outputRecDesc,
+                    appContext.getStorageManagerInterface(), appContext.getIndexLifecycleManagerProvider(), spPc.first,
+                    typeTraits, comparatorFactories, keyFields, new LSMRTreeDataflowHelperFactory(
+                            valueProviderFactories, RTreePolicyType.RTREE, primaryComparatorFactories,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, proposeLinearizer(
+                                    nestedKeyType.getTypeTag(), comparatorFactories.length),
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    retainInput, searchCallbackFactory);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(rtreeSearchOp, spPc.second);
+
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
         }
-
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(ddecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(keyType);
-            recordFields[i] = keySerde;
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-
-        ITreeIndexFrameFactory interiorFrameFactory = new RTreeNSMInteriorFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(typeTraits), valueProviderFactories);
-        ITreeIndexFrameFactory leafFrameFactory = new RTreeNSMLeafFrameFactory(new RTreeTypeAwareTupleWriterFactory(
-                typeTraits), valueProviderFactories);
-        /*
-                ITreeIndexFrameFactory interiorFrameFactory = JobGenHelper.createRTreeNSMInteriorFrameFactory(typeTraits,
-                        numNestedSecondaryKeyFields);
-                ITreeIndexFrameFactory leafFrameFactory = JobGenHelper.createRTreeNSMLeafFrameFactory(typeTraits,
-                        numNestedSecondaryKeyFields);
-        */
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-        RecordDescriptor recDesc = new RecordDescriptor(recordFields);
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc;
-        try {
-            spPc = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
-        RTreeSearchOperatorDescriptor rtreeSearchOp = new RTreeSearchOperatorDescriptor(jobSpec, recDesc,
-                appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(), spPc.first,
-                interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories, keyFields,
-                new RTreeDataflowHelperFactory());
-
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(rtreeSearchOp, spPc.second);
     }
 
     @Override
@@ -509,253 +631,438 @@
         String nodeId = fs.getNodeName();
 
         SinkWriterRuntimeFactory runtime = new SinkWriterRuntimeFactory(printColumns, printerFactories, outFile,
-                metadata.getWriterFactory(), inputDesc);
+                getWriterFactory(), inputDesc);
         AlgebricksPartitionConstraint apc = new AlgebricksAbsolutePartitionConstraint(new String[] { nodeId });
         return new Pair<IPushRuntimeFactory, AlgebricksPartitionConstraint>(runtime, apc);
     }
 
     @Override
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getResultHandleRuntime(IDataSink sink,
+            int[] printColumns, IPrinterFactory[] printerFactories, RecordDescriptor inputDesc, boolean ordered,
+            JobSpecification spec) throws AlgebricksException {
+        ResultSetDataSink rsds = (ResultSetDataSink) sink;
+        ResultSetSinkId rssId = (ResultSetSinkId) rsds.getId();
+        ResultSetId rsId = rssId.getResultSetId();
+        String nodeName = rssId.getResultNodeName();
+
+        ResultWriterOperatorDescriptor resultWriter = null;
+        try {
+            IResultSerializerFactory resultSerializedAppenderFactory = resultSerializerFactoryProvider
+                    .getAqlResultSerializerFactoryProvider(printColumns, printerFactories, getWriterFactory());
+            resultWriter = new ResultWriterOperatorDescriptor(spec, rsId, ordered, resultSerializedAppenderFactory);
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+
+        AlgebricksPartitionConstraint apc = new AlgebricksAbsolutePartitionConstraint(new String[] { nodeName });
+        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(resultWriter, apc);
+    }
+
+    @Override
     public IDataSourceIndex<String, AqlSourceId> findDataSourceIndex(String indexId, AqlSourceId dataSourceId)
             throws AlgebricksException {
         AqlDataSource ads = findDataSource(dataSourceId);
-        AqlCompiledDatasetDecl adecl = ads.getCompiledDatasetDecl();
-        if (adecl.getDatasetType() == DatasetType.EXTERNAL) {
+        Dataset dataset = ads.getDataset();
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
             throw new AlgebricksException("No index for external dataset " + dataSourceId);
         }
-
-        String idxName = (String) indexId;
-        AqlCompiledIndexDecl acid = DatasetUtils.findSecondaryIndexByName(adecl, idxName);
-        AqlSourceId asid = (AqlSourceId) dataSourceId;
-        if (acid != null) {
-            return new AqlIndex(acid, metadata, asid.getDatasetName());
-        } else {
-            AqlCompiledIndexDecl primIdx = DatasetUtils.getPrimaryIndex(adecl);
-            if (primIdx.getIndexName().equals(indexId)) {
-                return new AqlIndex(primIdx, metadata, asid.getDatasetName());
+        try {
+            String indexName = (String) indexId;
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+            if (secondaryIndex != null) {
+                return new AqlIndex(secondaryIndex, dataset.getDataverseName(), dataset.getDatasetName(), this);
             } else {
-                return null;
+                Index primaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                        dataset.getDatasetName(), dataset.getDatasetName());
+                if (primaryIndex.getIndexName().equals(indexId)) {
+                    return new AqlIndex(primaryIndex, dataset.getDataverseName(), dataset.getDatasetName(), this);
+                } else {
+                    return null;
+                }
             }
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
         }
     }
 
-    public static AqlDataSource lookupSourceInMetadata(AqlCompiledMetadataDeclarations metadata, AqlSourceId aqlId)
-            throws AlgebricksException {
-        if (!aqlId.getDataverseName().equals(metadata.getDataverseName())) {
-            return null;
-        }
-        AqlCompiledDatasetDecl acdd = metadata.findDataset(aqlId.getDatasetName());
-        if (acdd == null) {
+    public AqlDataSource lookupSourceInMetadata(AqlSourceId aqlId) throws AlgebricksException, MetadataException {
+        Dataset dataset = findDataset(aqlId.getDataverseName(), aqlId.getDatasetName());
+        if (dataset == null) {
             throw new AlgebricksException("Datasource with id " + aqlId + " was not found.");
         }
-        String tName = acdd.getItemTypeName();
-        IAType itemType;
-        try {
-            itemType = metadata.findType(tName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-        return new AqlDataSource(aqlId, acdd, itemType);
+        String tName = dataset.getItemTypeName();
+        IAType itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, aqlId.getDataverseName(), tName).getDatatype();
+        return new AqlDataSource(aqlId, dataset, itemType);
     }
 
     @Override
     public boolean scannerOperatorIsLeaf(IDataSource<AqlSourceId> dataSource) {
         AqlSourceId asid = dataSource.getId();
+        String dataverseName = asid.getDataverseName();
         String datasetName = asid.getDatasetName();
-        AqlCompiledDatasetDecl adecl = metadata.findDataset(datasetName);
-        if (adecl == null) {
-            throw new IllegalArgumentException("Unknown dataset " + datasetName);
+        Dataset dataset = null;
+        try {
+            dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+        } catch (MetadataException e) {
+            throw new IllegalStateException(e);
         }
-        return adecl.getDatasetType() == DatasetType.EXTERNAL;
+
+        if (dataset == null) {
+            throw new IllegalArgumentException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
+        }
+        return dataset.getDatasetType() == DatasetType.EXTERNAL;
     }
 
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getWriteResultRuntime(
             IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, List<LogicalVariable> keys,
             LogicalVariable payload, JobGenContext context, JobSpecification spec) throws AlgebricksException {
+        String dataverseName = dataSource.getId().getDataverseName();
         String datasetName = dataSource.getId().getDatasetName();
         int numKeys = keys.size();
         // move key fields to front
         int[] fieldPermutation = new int[numKeys + 1];
+        int[] bloomFilterKeyFields = new int[numKeys];
         // System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
         int i = 0;
         for (LogicalVariable varKey : keys) {
             int idx = propagatedSchema.findVariable(varKey);
             fieldPermutation[i] = idx;
+            bloomFilterKeyFields[i] = i;
             i++;
         }
         fieldPermutation[numKeys] = propagatedSchema.findVariable(payload);
 
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+        Dataset dataset = findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
         }
-        String indexName = DatasetUtils.getPrimaryIndex(compiledDatasetDecl).getIndexName();
 
-        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-
-        ITreeIndexFrameFactory interiorFrameFactory = createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = createBTreeNSMLeafFrameFactory(typeTraits);
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-
-        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(
-                compiledDatasetDecl, context.getBinaryComparatorFactoryProvider());
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
         try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
+            Index primaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), dataset.getDatasetName());
+            String indexName = primaryIndex.getIndexName();
 
-        TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(),
-                splitsAndConstraint.first, interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories,
-                fieldPermutation, GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad, splitsAndConstraint.second);
+            String itemTypeName = dataset.getItemTypeName();
+            ARecordType itemType = (ARecordType) MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                    dataset.getDataverseName(), itemTypeName).getDatatype();
+            ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+            IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                    itemType, context.getBinaryComparatorFactoryProvider());
+
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataSource.getId().getDataverseName(), datasetName, indexName);
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+
+            String numElementsHintString = dataset.getHints().get("CARDINALITY");
+            long numElementsHint;
+            if (numElementsHintString == null) {
+                numElementsHint = DatasetCardinalityHint.DEFAULT;
+            } else {
+                numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
+            }
+
+            //TODO
+            //figure out the right behavior of the bulkload and then give the right callback
+            //(ex. what's the expected behavior when there is an error during bulkload?)
+            TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
+                    appContext.getStorageManagerInterface(), appContext.getIndexLifecycleManagerProvider(),
+                    splitsAndConstraint.first, typeTraits, comparatorFactories, bloomFilterKeyFields, fieldPermutation,
+                    GlobalConfig.DEFAULT_BTREE_FILL_FACTOR, false, numElementsHint, new LSMBTreeDataflowHelperFactory(
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    NoOpOperationCallbackFactory.INSTANCE);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad,
+                    splitsAndConstraint.second);
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
+        }
+    }
+
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getInsertOrDeleteRuntime(IndexOperation indexOp,
+            IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> keys, LogicalVariable payload, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec) throws AlgebricksException {
+        String datasetName = dataSource.getId().getDatasetName();
+        int numKeys = keys.size();
+        // Move key fields to front.
+        int[] fieldPermutation = new int[numKeys + 1];
+        int[] bloomFilterKeyFields = new int[numKeys];
+        int i = 0;
+        for (LogicalVariable varKey : keys) {
+            int idx = propagatedSchema.findVariable(varKey);
+            fieldPermutation[i] = idx;
+            bloomFilterKeyFields[i] = i;
+            i++;
+        }
+        fieldPermutation[numKeys] = propagatedSchema.findVariable(payload);
+
+        Dataset dataset = findDataset(dataSource.getId().getDataverseName(), datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse "
+                    + dataSource.getId().getDataverseName());
+        }
+        try {
+            Index primaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), dataset.getDatasetName());
+            String indexName = primaryIndex.getIndexName();
+
+            String itemTypeName = dataset.getItemTypeName();
+            ARecordType itemType = (ARecordType) MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                    dataSource.getId().getDataverseName(), itemTypeName).getDatatype();
+
+            ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
+
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
+                    itemType, context.getBinaryComparatorFactoryProvider());
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataSource.getId().getDataverseName(), datasetName, indexName);
+
+            //prepare callback
+            JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
+            int datasetId = dataset.getDatasetId();
+            int[] primaryKeyFields = new int[numKeys];
+            for (i = 0; i < numKeys; i++) {
+                primaryKeyFields[i] = i;
+            }
+            TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+            PrimaryIndexModificationOperationCallbackFactory modificationCallbackFactory = new PrimaryIndexModificationOperationCallbackFactory(
+                    jobId, datasetId, primaryKeyFields, txnSubsystemProvider, indexOp, ResourceType.LSM_BTREE);
+
+            LSMTreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new LSMTreeIndexInsertUpdateDeleteOperatorDescriptor(
+                    spec, recordDesc, appContext.getStorageManagerInterface(),
+                    appContext.getIndexLifecycleManagerProvider(), splitsAndConstraint.first, typeTraits,
+                    comparatorFactories, bloomFilterKeyFields, fieldPermutation, indexOp,
+                    new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES), null,
+                    modificationCallbackFactory);
+
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad,
+                    splitsAndConstraint.second);
+
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
+        }
     }
 
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getInsertRuntime(
-            IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, List<LogicalVariable> keys,
-            LogicalVariable payload, RecordDescriptor recordDesc, JobGenContext context, JobSpecification spec)
-            throws AlgebricksException {
-        String datasetName = dataSource.getId().getDatasetName();
-        int numKeys = keys.size();
-        // move key fields to front
-        int[] fieldPermutation = new int[numKeys + 1];
-        // System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
-        int i = 0;
-        for (LogicalVariable varKey : keys) {
-            int idx = propagatedSchema.findVariable(varKey);
-            fieldPermutation[i] = idx;
-            i++;
-        }
-        fieldPermutation[numKeys] = propagatedSchema.findVariable(payload);
-
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
-        }
-        String indexName = DatasetUtils.getPrimaryIndex(compiledDatasetDecl).getIndexName();
-
-        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-
-        ITreeIndexFrameFactory interiorFrameFactory = createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = createBTreeNSMLeafFrameFactory(typeTraits);
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-
-        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(
-                compiledDatasetDecl, context.getBinaryComparatorFactoryProvider());
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-        try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-
-        TreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
-                spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(),
-                splitsAndConstraint.first, interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories,
-                new BTreeDataflowHelperFactory(), fieldPermutation, IndexOp.INSERT, txnId);
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad, splitsAndConstraint.second);
+            IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> keys, LogicalVariable payload, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec) throws AlgebricksException {
+        return getInsertOrDeleteRuntime(IndexOperation.INSERT, dataSource, propagatedSchema, typeEnv, keys, payload,
+                recordDesc, context, spec);
     }
 
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getDeleteRuntime(
-            IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, List<LogicalVariable> keys,
-            LogicalVariable payload, RecordDescriptor recordDesc, JobGenContext context, JobSpecification spec)
-            throws AlgebricksException {
-        String datasetName = dataSource.getId().getDatasetName();
-        int numKeys = keys.size();
-        // move key fields to front
-        int[] fieldPermutation = new int[numKeys + 1];
-        // System.arraycopy(keys, 0, fieldPermutation, 0, numKeys);
-        int i = 0;
-        for (LogicalVariable varKey : keys) {
-            int idx = propagatedSchema.findVariable(varKey);
-            fieldPermutation[i] = idx;
-            i++;
-        }
-        fieldPermutation[numKeys] = propagatedSchema.findVariable(payload);
+            IDataSource<AqlSourceId> dataSource, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> keys, LogicalVariable payload, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec) throws AlgebricksException {
+        return getInsertOrDeleteRuntime(IndexOperation.DELETE, dataSource, propagatedSchema, typeEnv, keys, payload,
+                recordDesc, context, spec);
+    }
 
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
+    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexInsertOrDeleteRuntime(
+            IndexOperation indexOp, IDataSourceIndex<String, AqlSourceId> dataSourceIndex,
+            IOperatorSchema propagatedSchema, IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr,
+            RecordDescriptor recordDesc, JobGenContext context, JobSpecification spec) throws AlgebricksException {
+        String indexName = dataSourceIndex.getId();
+        String dataverseName = dataSourceIndex.getDataSource().getId().getDataverseName();
+        String datasetName = dataSourceIndex.getDataSource().getId().getDatasetName();
+
+        Dataset dataset = findDataset(dataverseName, datasetName);
+        if (dataset == null) {
             throw new AlgebricksException("Unknown dataset " + datasetName);
         }
-        String indexName = DatasetUtils.getPrimaryIndex(compiledDatasetDecl).getIndexName();
-
-        ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(compiledDatasetDecl, metadata);
-
-        ITreeIndexFrameFactory interiorFrameFactory = createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = createBTreeNSMLeafFrameFactory(typeTraits);
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-
-        IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(
-                compiledDatasetDecl, context.getBinaryComparatorFactoryProvider());
-
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
+        Index secondaryIndex;
         try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    indexName);
-        } catch (Exception e) {
+            secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+        } catch (MetadataException e) {
             throw new AlgebricksException(e);
         }
-
-        TreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
-                spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(),
-                splitsAndConstraint.first, interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories,
-                new BTreeDataflowHelperFactory(), fieldPermutation, IndexOp.DELETE, txnId);
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad, splitsAndConstraint.second);
+        AsterixTupleFilterFactory filterFactory = createTupleFilterFactory(inputSchemas, typeEnv, filterExpr, context);
+        switch (secondaryIndex.getIndexType()) {
+            case BTREE: {
+                return getBTreeDmlRuntime(dataverseName, datasetName, indexName, propagatedSchema, typeEnv,
+                        primaryKeys, secondaryKeys, filterFactory, recordDesc, context, spec, indexOp);
+            }
+            case RTREE: {
+                return getRTreeDmlRuntime(dataverseName, datasetName, indexName, propagatedSchema, typeEnv,
+                        primaryKeys, secondaryKeys, filterFactory, recordDesc, context, spec, indexOp);
+            }
+            case WORD_INVIX:
+            case NGRAM_INVIX:
+            case FUZZY_WORD_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                return getInvertedIndexDmlRuntime(dataverseName, datasetName, indexName, propagatedSchema, typeEnv,
+                        primaryKeys, secondaryKeys, filterFactory, recordDesc, context, spec, indexOp,
+                        secondaryIndex.getIndexType());
+            }
+            default: {
+                throw new AlgebricksException("Insert and delete not implemented for index type: "
+                        + secondaryIndex.getIndexType());
+            }
+        }
     }
 
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexInsertRuntime(
             IDataSourceIndex<String, AqlSourceId> dataSourceIndex, IOperatorSchema propagatedSchema,
-            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys, RecordDescriptor recordDesc,
+            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
+            List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
             JobGenContext context, JobSpecification spec) throws AlgebricksException {
-        String indexName = dataSourceIndex.getId();
-        String datasetName = dataSourceIndex.getDataSource().getId().getDatasetName();
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
-        }
-        AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(compiledDatasetDecl, indexName);
-
-        if (cid.getKind() == IndexKind.BTREE)
-            return getBTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys, recordDesc,
-                    context, spec, IndexOp.INSERT);
-        else
-            return getRTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys, recordDesc,
-                    context, spec, IndexOp.INSERT);
+        return getIndexInsertOrDeleteRuntime(IndexOperation.INSERT, dataSourceIndex, propagatedSchema, inputSchemas,
+                typeEnv, primaryKeys, secondaryKeys, filterExpr, recordDesc, context, spec);
     }
 
     @Override
     public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexDeleteRuntime(
             IDataSourceIndex<String, AqlSourceId> dataSourceIndex, IOperatorSchema propagatedSchema,
-            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys, RecordDescriptor recordDesc,
+            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
+            List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
             JobGenContext context, JobSpecification spec) throws AlgebricksException {
-        String indexName = dataSourceIndex.getId();
-        String datasetName = dataSourceIndex.getDataSource().getId().getDatasetName();
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
-        }
-        AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(compiledDatasetDecl, indexName);
-        if (cid.getKind() == IndexKind.BTREE)
-            return getBTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys, recordDesc,
-                    context, spec, IndexOp.DELETE);
-        else
-            return getRTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys, recordDesc,
-                    context, spec, IndexOp.DELETE);
+        return getIndexInsertOrDeleteRuntime(IndexOperation.DELETE, dataSourceIndex, propagatedSchema, inputSchemas,
+                typeEnv, primaryKeys, secondaryKeys, filterExpr, recordDesc, context, spec);
     }
 
-    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getBTreeDmlRuntime(String datasetName,
-            String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, RecordDescriptor recordDesc, JobGenContext context,
-            JobSpecification spec, IndexOp indexOp) throws AlgebricksException {
+    private AsterixTupleFilterFactory createTupleFilterFactory(IOperatorSchema[] inputSchemas,
+            IVariableTypeEnvironment typeEnv, ILogicalExpression filterExpr, JobGenContext context)
+            throws AlgebricksException {
+        // No filtering condition.
+        if (filterExpr == null) {
+            return null;
+        }
+        IExpressionRuntimeProvider expressionRuntimeProvider = context.getExpressionRuntimeProvider();
+        IScalarEvaluatorFactory filterEvalFactory = expressionRuntimeProvider.createEvaluatorFactory(filterExpr,
+                typeEnv, inputSchemas, context);
+        return new AsterixTupleFilterFactory(filterEvalFactory, context.getBinaryBooleanInspectorFactory());
+    }
+
+    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getBTreeDmlRuntime(String dataverseName,
+            String datasetName, String indexName, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys,
+            AsterixTupleFilterFactory filterFactory, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec, IndexOperation indexOp) throws AlgebricksException {
+
+        int numKeys = primaryKeys.size() + secondaryKeys.size();
+        // generate field permutations
+        int[] fieldPermutation = new int[numKeys];
+        int[] bloomFilterKeyFields = new int[secondaryKeys.size()];
+        int i = 0;
+        for (LogicalVariable varKey : secondaryKeys) {
+            int idx = propagatedSchema.findVariable(varKey);
+            fieldPermutation[i] = idx;
+            bloomFilterKeyFields[i] = i;
+            i++;
+        }
+        for (LogicalVariable varKey : primaryKeys) {
+            int idx = propagatedSchema.findVariable(varKey);
+            fieldPermutation[i] = idx;
+            i++;
+        }
+
+        Dataset dataset = findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
+        }
+        String itemTypeName = dataset.getItemTypeName();
+        IAType itemType;
+        try {
+            itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(), itemTypeName)
+                    .getDatatype();
+
+            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                throw new AlgebricksException("Only record types can be indexed.");
+            }
+
+            ARecordType recType = (ARecordType) itemType;
+
+            // Index parameters.
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+
+            List<String> secondaryKeyExprs = secondaryIndex.getKeyFieldNames();
+            ITypeTraits[] typeTraits = new ITypeTraits[numKeys];
+            IBinaryComparatorFactory[] comparatorFactories = new IBinaryComparatorFactory[numKeys];
+            for (i = 0; i < secondaryKeys.size(); ++i) {
+                Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(secondaryKeyExprs.get(i)
+                        .toString(), recType);
+                IAType keyType = keyPairType.first;
+                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                        keyType, true);
+                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+            }
+            List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+            for (String partitioningKey : partitioningKeys) {
+                IAType keyType = recType.getFieldType(partitioningKey);
+                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                        keyType, true);
+                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+                ++i;
+            }
+
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataverseName, datasetName, indexName);
+
+            //prepare callback
+            JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
+            int datasetId = dataset.getDatasetId();
+            int[] primaryKeyFields = new int[primaryKeys.size()];
+            i = 0;
+            for (LogicalVariable varKey : primaryKeys) {
+                int idx = propagatedSchema.findVariable(varKey);
+                primaryKeyFields[i] = idx;
+                i++;
+            }
+            TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+            SecondaryIndexModificationOperationCallbackFactory modificationCallbackFactory = new SecondaryIndexModificationOperationCallbackFactory(
+                    jobId, datasetId, primaryKeyFields, txnSubsystemProvider, indexOp, ResourceType.LSM_BTREE);
+
+            LSMTreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new LSMTreeIndexInsertUpdateDeleteOperatorDescriptor(
+                    spec, recordDesc, appContext.getStorageManagerInterface(),
+                    appContext.getIndexLifecycleManagerProvider(), splitsAndConstraint.first, typeTraits,
+                    comparatorFactories, bloomFilterKeyFields, fieldPermutation, indexOp,
+                    new LSMBTreeDataflowHelperFactory(AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    filterFactory, modificationCallbackFactory);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad,
+                    splitsAndConstraint.second);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getInvertedIndexDmlRuntime(String dataverseName,
+            String datasetName, String indexName, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys,
+            AsterixTupleFilterFactory filterFactory, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec, IndexOperation indexOp, IndexType indexType) throws AlgebricksException {
+
+        // Sanity checks.
+        if (primaryKeys.size() > 1) {
+            throw new AlgebricksException("Cannot create inverted index on dataset with composite primary key.");
+        }
+        if (secondaryKeys.size() > 1) {
+            throw new AlgebricksException("Cannot create composite inverted index on multiple fields.");
+        }
+
         int numKeys = primaryKeys.size() + secondaryKeys.size();
         // generate field permutations
         int[] fieldPermutation = new int[numKeys];
@@ -771,154 +1078,365 @@
             i++;
         }
 
-        // dataset
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        if (compiledDatasetDecl == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+        boolean isPartitioned;
+        if (indexType == IndexType.FUZZY_WORD_INVIX || indexType == IndexType.FUZZY_NGRAM_INVIX) {
+            isPartitioned = true;
+        } else {
+            isPartitioned = false;
         }
-        String itemTypeName = compiledDatasetDecl.getItemTypeName();
+
+        Dataset dataset = findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
+        }
+        String itemTypeName = dataset.getItemTypeName();
         IAType itemType;
         try {
-            itemType = metadata.findType(itemTypeName);
-        } catch (Exception e) {
+            itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataset.getDataverseName(), itemTypeName)
+                    .getDatatype();
+
+            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                throw new AlgebricksException("Only record types can be indexed.");
+            }
+
+            ARecordType recType = (ARecordType) itemType;
+
+            // Index parameters.
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+
+            List<String> secondaryKeyExprs = secondaryIndex.getKeyFieldNames();
+
+            int numTokenFields = (!isPartitioned) ? secondaryKeys.size() : secondaryKeys.size() + 1;
+            ITypeTraits[] tokenTypeTraits = new ITypeTraits[numTokenFields];
+            ITypeTraits[] invListsTypeTraits = new ITypeTraits[primaryKeys.size()];
+            IBinaryComparatorFactory[] tokenComparatorFactories = new IBinaryComparatorFactory[numTokenFields];
+            IBinaryComparatorFactory[] invListComparatorFactories = new IBinaryComparatorFactory[primaryKeys.size()];
+
+            IAType secondaryKeyType = null;
+            for (i = 0; i < secondaryKeys.size(); ++i) {
+                Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(secondaryKeyExprs.get(i)
+                        .toString(), recType);
+                secondaryKeyType = keyPairType.first;
+            }
+            List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+            i = 0;
+            for (String partitioningKey : partitioningKeys) {
+                IAType keyType = recType.getFieldType(partitioningKey);
+                invListsTypeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+                ++i;
+            }
+
+            tokenComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
+            tokenTypeTraits[0] = NonTaggedFormatUtil.getTokenTypeTrait(secondaryKeyType);
+            if (isPartitioned) {
+                // The partitioning field is hardcoded to be a short *without* an Asterix type tag.
+                tokenComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
+                tokenTypeTraits[1] = ShortPointable.TYPE_TRAITS;
+            }
+            IBinaryTokenizerFactory tokenizerFactory = NonTaggedFormatUtil.getBinaryTokenizerFactory(
+                    secondaryKeyType.getTypeTag(), indexType, secondaryIndex.getGramLength());
+
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataverseName, datasetName, indexName);
+
+            //prepare callback
+            JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
+            int datasetId = dataset.getDatasetId();
+            int[] primaryKeyFields = new int[primaryKeys.size()];
+            i = 0;
+            for (LogicalVariable varKey : primaryKeys) {
+                int idx = propagatedSchema.findVariable(varKey);
+                primaryKeyFields[i] = idx;
+                i++;
+            }
+            TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+            SecondaryIndexModificationOperationCallbackFactory modificationCallbackFactory = new SecondaryIndexModificationOperationCallbackFactory(
+                    jobId, datasetId, primaryKeyFields, txnSubsystemProvider, indexOp, ResourceType.LSM_INVERTED_INDEX);
+
+            LSMInvertedIndexInsertUpdateDeleteOperator insertDeleteOp = new LSMInvertedIndexInsertUpdateDeleteOperator(
+                    spec, recordDesc, appContext.getStorageManagerInterface(), splitsAndConstraint.first,
+                    appContext.getIndexLifecycleManagerProvider(), tokenTypeTraits, tokenComparatorFactories,
+                    invListsTypeTraits, invListComparatorFactories, tokenizerFactory, fieldPermutation, indexOp,
+                    new LSMInvertedIndexDataflowHelperFactory(
+                            AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER,
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    filterFactory, modificationCallbackFactory);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(insertDeleteOp,
+                    splitsAndConstraint.second);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        } catch (IOException e) {
             throw new AlgebricksException(e);
         }
-        if (itemType.getTypeTag() != ATypeTag.RECORD) {
-            throw new AlgebricksException("Only record types can be indexed.");
-        }
-        ARecordType recType = (ARecordType) itemType;
-
-        // index parameters
-        AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(compiledDatasetDecl, indexName);
-        List<String> secondaryKeyExprs = cid.getFieldExprs();
-        ITypeTraits[] typeTraits = new ITypeTraits[numKeys];
-        IBinaryComparatorFactory[] comparatorFactories = new IBinaryComparatorFactory[numKeys];
-        for (i = 0; i < secondaryKeys.size(); ++i) {
-            IAType keyType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyExprs.get(i).toString(), recType);
-            comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(keyType,
-                    OrderKind.ASC);
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-        }
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(keyType,
-                    OrderKind.ASC);
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-
-        ITreeIndexFrameFactory interiorFrameFactory = createBTreeNSMInteriorFrameFactory(typeTraits);
-        ITreeIndexFrameFactory leafFrameFactory = createBTreeNSMLeafFrameFactory(typeTraits);
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-        try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-        TreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
-                spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(),
-                splitsAndConstraint.first, interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories,
-                new BTreeDataflowHelperFactory(), fieldPermutation, indexOp, txnId);
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad, splitsAndConstraint.second);
     }
 
-    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getRTreeDmlRuntime(String datasetName,
-            String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, RecordDescriptor recordDesc, JobGenContext context,
-            JobSpecification spec, IndexOp indexOp) throws AlgebricksException {
-        AqlCompiledDatasetDecl compiledDatasetDecl = metadata.findDataset(datasetName);
-        String itemTypeName = compiledDatasetDecl.getItemTypeName();
-        IAType itemType;
+    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getRTreeDmlRuntime(String dataverseName,
+            String datasetName, String indexName, IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv,
+            List<LogicalVariable> primaryKeys, List<LogicalVariable> secondaryKeys,
+            AsterixTupleFilterFactory filterFactory, RecordDescriptor recordDesc, JobGenContext context,
+            JobSpecification spec, IndexOperation indexOp) throws AlgebricksException {
         try {
-            itemType = metadata.findType(itemTypeName);
-        } catch (Exception e) {
+            Dataset dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            String itemTypeName = dataset.getItemTypeName();
+            IAType itemType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, itemTypeName).getDatatype();
+            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                throw new AlgebricksException("Only record types can be indexed.");
+            }
+            ARecordType recType = (ARecordType) itemType;
+            Index secondaryIndex = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataset.getDataverseName(),
+                    dataset.getDatasetName(), indexName);
+            List<String> secondaryKeyExprs = secondaryIndex.getKeyFieldNames();
+            Pair<IAType, Boolean> keyPairType = Index.getNonNullableKeyFieldType(secondaryKeyExprs.get(0), recType);
+            IAType spatialType = keyPairType.first;
+            int dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
+            int numSecondaryKeys = dimension * 2;
+            int numPrimaryKeys = primaryKeys.size();
+            int numKeys = numSecondaryKeys + numPrimaryKeys;
+            ITypeTraits[] typeTraits = new ITypeTraits[numKeys];
+            IBinaryComparatorFactory[] comparatorFactories = new IBinaryComparatorFactory[numKeys];
+            int[] fieldPermutation = new int[numKeys];
+            int i = 0;
+
+            for (LogicalVariable varKey : secondaryKeys) {
+                int idx = propagatedSchema.findVariable(varKey);
+                fieldPermutation[i] = idx;
+                i++;
+            }
+            for (LogicalVariable varKey : primaryKeys) {
+                int idx = propagatedSchema.findVariable(varKey);
+                fieldPermutation[i] = idx;
+                i++;
+            }
+            IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(spatialType.getTypeTag());
+            IPrimitiveValueProviderFactory[] valueProviderFactories = new IPrimitiveValueProviderFactory[numSecondaryKeys];
+            for (i = 0; i < numSecondaryKeys; i++) {
+                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                        nestedKeyType, true);
+                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
+                valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
+            }
+            List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+            for (String partitioningKey : partitioningKeys) {
+                IAType keyType = recType.getFieldType(partitioningKey);
+                comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
+                        keyType, true);
+                typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
+                ++i;
+            }
+
+            IBinaryComparatorFactory[] primaryComparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(
+                    dataset, recType, context.getBinaryComparatorFactoryProvider());
+            IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
+            Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+                    dataverseName, datasetName, indexName);
+
+            //prepare callback
+            JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
+            int datasetId = dataset.getDatasetId();
+            int[] primaryKeyFields = new int[numPrimaryKeys];
+            i = 0;
+            for (LogicalVariable varKey : primaryKeys) {
+                int idx = propagatedSchema.findVariable(varKey);
+                primaryKeyFields[i] = idx;
+                i++;
+            }
+            TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+            SecondaryIndexModificationOperationCallbackFactory modificationCallbackFactory = new SecondaryIndexModificationOperationCallbackFactory(
+                    jobId, datasetId, primaryKeyFields, txnSubsystemProvider, indexOp, ResourceType.LSM_RTREE);
+
+            LSMTreeIndexInsertUpdateDeleteOperatorDescriptor rtreeUpdate = new LSMTreeIndexInsertUpdateDeleteOperatorDescriptor(
+                    spec, recordDesc, appContext.getStorageManagerInterface(),
+                    appContext.getIndexLifecycleManagerProvider(), splitsAndConstraint.first, typeTraits,
+                    comparatorFactories, null, fieldPermutation, indexOp, new LSMRTreeDataflowHelperFactory(
+                            valueProviderFactories, RTreePolicyType.RTREE, primaryComparatorFactories,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER,
+                            AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER, proposeLinearizer(
+                                    nestedKeyType.getTypeTag(), comparatorFactories.length),
+                            GlobalConfig.DEFAULT_INDEX_MEM_PAGE_SIZE, GlobalConfig.DEFAULT_INDEX_MEM_NUM_PAGES),
+                    filterFactory, modificationCallbackFactory);
+            return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(rtreeUpdate, splitsAndConstraint.second);
+        } catch (MetadataException | IOException e) {
             throw new AlgebricksException(e);
         }
-        if (itemType.getTypeTag() != ATypeTag.RECORD) {
-            throw new AlgebricksException("Only record types can be indexed.");
-        }
-        ARecordType recType = (ARecordType) itemType;
-        AqlCompiledIndexDecl cid = DatasetUtils.findSecondaryIndexByName(compiledDatasetDecl, indexName);
-        List<String> secondaryKeyExprs = cid.getFieldExprs();
-        IAType spatialType = AqlCompiledIndexDecl.keyFieldType(secondaryKeyExprs.get(0).toString(), recType);
-        int dimension = NonTaggedFormatUtil.getNumDimensions(spatialType.getTypeTag());
-        int numSecondaryKeys = dimension * 2;
-        int numPrimaryKeys = primaryKeys.size();
-        int numKeys = numSecondaryKeys + numPrimaryKeys;
-        ITypeTraits[] typeTraits = new ITypeTraits[numKeys];
-        IBinaryComparatorFactory[] comparatorFactories = new IBinaryComparatorFactory[numKeys];
-        int[] fieldPermutation = new int[numKeys];
-        int i = 0;
-
-        for (LogicalVariable varKey : secondaryKeys) {
-            int idx = propagatedSchema.findVariable(varKey);
-            fieldPermutation[i] = idx;
-            i++;
-        }
-        for (LogicalVariable varKey : primaryKeys) {
-            int idx = propagatedSchema.findVariable(varKey);
-            fieldPermutation[i] = idx;
-            i++;
-        }
-        IAType nestedKeyType = NonTaggedFormatUtil.getNestedSpatialType(spatialType.getTypeTag());
-        IPrimitiveValueProviderFactory[] valueProviderFactories = new IPrimitiveValueProviderFactory[numSecondaryKeys];
-        for (i = 0; i < numSecondaryKeys; i++) {
-            ISerializerDeserializer keySerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(nestedKeyType);
-            comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(
-                    nestedKeyType, OrderKind.ASC);
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(nestedKeyType);
-            valueProviderFactories[i] = AqlPrimitiveValueProviderFactory.INSTANCE;
-        }
-        for (Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType : DatasetUtils
-                .getPartitioningFunctions(compiledDatasetDecl)) {
-            IAType keyType = evalFactoryAndType.third;
-            comparatorFactories[i] = AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(keyType,
-                    OrderKind.ASC);
-            typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
-            ++i;
-        }
-
-        ITreeIndexFrameFactory interiorFrameFactory = new RTreeNSMInteriorFrameFactory(
-                new RTreeTypeAwareTupleWriterFactory(typeTraits), valueProviderFactories);
-        ITreeIndexFrameFactory leafFrameFactory = new RTreeNSMLeafFrameFactory(new RTreeTypeAwareTupleWriterFactory(
-                typeTraits), valueProviderFactories);
-
-        /*
-        ITreeIndexFrameFactory interiorFrameFactory = JobGenHelper.createRTreeNSMInteriorFrameFactory(typeTraits,
-                numSecondaryKeys);
-        ITreeIndexFrameFactory leafFrameFactory = JobGenHelper.createRTreeNSMLeafFrameFactory(typeTraits,
-                numSecondaryKeys);
-        */
-
-        IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint;
-        try {
-            splitsAndConstraint = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                    indexName);
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-        TreeIndexInsertUpdateDeleteOperatorDescriptor rtreeUpdate = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
-                spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getTreeRegisterProvider(),
-                splitsAndConstraint.first, interiorFrameFactory, leafFrameFactory, typeTraits, comparatorFactories,
-                new RTreeDataflowHelperFactory(), fieldPermutation, indexOp, txnId);
-        return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(rtreeUpdate, splitsAndConstraint.second);
     }
 
-    public long getTxnId() {
-        return txnId;
+    public JobId getJobId() {
+        return jobId;
     }
 
     public static ITreeIndexFrameFactory createBTreeNSMInteriorFrameFactory(ITypeTraits[] typeTraits) {
         return new BTreeNSMInteriorFrameFactory(new TypeAwareTupleWriterFactory(typeTraits));
     }
 
-    public static ITreeIndexFrameFactory createBTreeNSMLeafFrameFactory(ITypeTraits[] typeTraits) {
-        return new BTreeNSMLeafFrameFactory(new TypeAwareTupleWriterFactory(typeTraits));
+    public static ILinearizeComparatorFactory proposeLinearizer(ATypeTag keyType, int numKeyFields)
+            throws AlgebricksException {
+        if (numKeyFields / 2 == 2 && (keyType == ATypeTag.DOUBLE)) {
+            return new HilbertDoubleComparatorFactory(2);
+        } else if (keyType == ATypeTag.DOUBLE) {
+            return new ZCurveDoubleComparatorFactory(numKeyFields / 2);
+        } else if (keyType == ATypeTag.INT8 || keyType == ATypeTag.INT16 || keyType == ATypeTag.INT32
+                || keyType == ATypeTag.INT64) {
+            return new ZCurveIntComparatorFactory(numKeyFields / 2);
+        } else {
+            throw new AlgebricksException("Cannot propose linearizer for key with type " + keyType + ".");
+        }
+    }
+
+    @Override
+    public IFunctionInfo lookupFunction(FunctionIdentifier fid) {
+        return AsterixBuiltinFunctions.lookupFunction(fid);
+    }
+
+    public Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
+            String dataverseName, String datasetName, String targetIdxName) throws AlgebricksException {
+        FileSplit[] splits = splitsForInternalOrFeedDataset(mdTxnCtx, dataverseName, datasetName, targetIdxName);
+        IFileSplitProvider splitProvider = new ConstantFileSplitProvider(splits);
+        String[] loc = new String[splits.length];
+        for (int p = 0; p < splits.length; p++) {
+            loc[p] = splits[p].getNodeName();
+        }
+        AlgebricksPartitionConstraint pc = new AlgebricksAbsolutePartitionConstraint(loc);
+        return new Pair<IFileSplitProvider, AlgebricksPartitionConstraint>(splitProvider, pc);
+    }
+
+    private FileSplit[] splitsForInternalOrFeedDataset(MetadataTransactionContext mdTxnCtx, String dataverseName,
+            String datasetName, String targetIdxName) throws AlgebricksException {
+
+        try {
+            File relPathFile = new File(getRelativePath(dataverseName, datasetName + "_idx_" + targetIdxName));
+            Dataset dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+            if (dataset.getDatasetType() != DatasetType.INTERNAL & dataset.getDatasetType() != DatasetType.FEED) {
+                throw new AlgebricksException("Not an internal or feed dataset");
+            }
+            InternalDatasetDetails datasetDetails = (InternalDatasetDetails) dataset.getDatasetDetails();
+            List<String> nodeGroup = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, datasetDetails.getNodeGroupName())
+                    .getNodeNames();
+            if (nodeGroup == null) {
+                throw new AlgebricksException("Couldn't find node group " + datasetDetails.getNodeGroupName());
+            }
+
+            List<FileSplit> splitArray = new ArrayList<FileSplit>();
+            for (String nd : nodeGroup) {
+                String[] nodeStores = stores.get(nd);
+                if (nodeStores == null) {
+                    LOGGER.warning("Node " + nd + " has no stores.");
+                    throw new AlgebricksException("Node " + nd + " has no stores.");
+                } else {
+                    for (int j = 0; j < nodeStores.length; j++) {
+                        File f = new File(nodeStores[j] + File.separator + relPathFile);
+                        splitArray.add(new FileSplit(nd, new FileReference(f)));
+                    }
+                }
+            }
+            FileSplit[] splits = new FileSplit[splitArray.size()];
+            int i = 0;
+            for (FileSplit fs : splitArray) {
+                splits[i++] = fs;
+            }
+            return splits;
+        } catch (MetadataException me) {
+            throw new AlgebricksException(me);
+        }
+    }
+
+    private static Map<String, String> initializeAdapterFactoryMapping() {
+        Map<String, String> adapterFactoryMapping = new HashMap<String, String>();
+        adapterFactoryMapping.put("edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter",
+                "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory");
+        adapterFactoryMapping.put("edu.uci.ics.asterix.external.dataset.adapter.HDFSAdapter",
+                "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory");
+        adapterFactoryMapping.put("edu.uci.ics.asterix.external.dataset.adapter.PullBasedTwitterAdapter",
+                "edu.uci.ics.asterix.external.dataset.adapter.PullBasedTwitterAdapterFactory");
+        adapterFactoryMapping.put("edu.uci.ics.asterix.external.dataset.adapter.RSSFeedAdapter",
+                "edu.uci.ics.asterix.external.dataset.adapter..RSSFeedAdapterFactory");
+        adapterFactoryMapping.put("edu.uci.ics.asterix.external.dataset.adapter.CNNFeedAdapter",
+                "edu.uci.ics.asterix.external.dataset.adapter.CNNFeedAdapterFactory");
+        return adapterFactoryMapping;
+    }
+
+    public DatasourceAdapter getAdapter(MetadataTransactionContext mdTxnCtx, String dataverseName, String adapterName)
+            throws MetadataException {
+        DatasourceAdapter adapter = null;
+        // search in default namespace (built-in adapter)
+        adapter = MetadataManager.INSTANCE.getAdapter(mdTxnCtx, MetadataConstants.METADATA_DATAVERSE_NAME, adapterName);
+
+        // search in dataverse (user-defined adapter)
+        if (adapter == null) {
+            adapter = MetadataManager.INSTANCE.getAdapter(mdTxnCtx, dataverseName, adapterName);
+        }
+        return adapter;
+    }
+
+    private static String getRelativePath(String dataverseName, String fileName) {
+        return dataverseName + File.separator + fileName;
+    }
+
+    public Pair<IFileSplitProvider, IFileSplitProvider> getInvertedIndexFileSplitProviders(
+            IFileSplitProvider splitProvider) {
+        int numSplits = splitProvider.getFileSplits().length;
+        FileSplit[] btreeSplits = new FileSplit[numSplits];
+        FileSplit[] invListsSplits = new FileSplit[numSplits];
+        for (int i = 0; i < numSplits; i++) {
+            String nodeName = splitProvider.getFileSplits()[i].getNodeName();
+            String path = splitProvider.getFileSplits()[i].getLocalFile().getFile().getPath();
+            btreeSplits[i] = new FileSplit(nodeName, path + "_$btree");
+            invListsSplits[i] = new FileSplit(nodeName, path + "_$invlists");
+        }
+        return new Pair<IFileSplitProvider, IFileSplitProvider>(new ConstantFileSplitProvider(btreeSplits),
+                new ConstantFileSplitProvider(invListsSplits));
+    }
+
+    public Dataset findDataset(String dataverse, String dataset) throws AlgebricksException {
+        try {
+            return MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverse, dataset);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    public IAType findType(String dataverse, String typeName) {
+        Datatype type;
+        try {
+            type = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverse, typeName);
+        } catch (Exception e) {
+            throw new IllegalStateException();
+        }
+        if (type == null) {
+            throw new IllegalStateException();
+        }
+        return type.getDatatype();
+    }
+
+    public List<Index> getDatasetIndexes(String dataverseName, String datasetName) throws AlgebricksException {
+        try {
+            return MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    public AlgebricksPartitionConstraint getClusterLocations() {
+        ArrayList<String> locs = new ArrayList<String>();
+        for (String k : stores.keySet()) {
+            String[] nodeStores = stores.get(k);
+            for (int j = 0; j < nodeStores.length; j++) {
+                locs.add(k);
+            }
+        }
+        String[] cluster = new String[locs.size()];
+        cluster = locs.toArray(cluster);
+        return new AlgebricksAbsolutePartitionConstraint(cluster);
+    }
+
+    public IDataFormat getFormat() {
+        return FormatUtils.getDefaultFormat();
     }
 
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ExternalFeedDataSource.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ExternalFeedDataSource.java
index 8413d10..566265f 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ExternalFeedDataSource.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ExternalFeedDataSource.java
@@ -1,17 +1,17 @@
 package edu.uci.ics.asterix.metadata.declared;
 
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 public class ExternalFeedDataSource extends AqlDataSource {
 
-    public ExternalFeedDataSource(AqlSourceId id, AqlCompiledDatasetDecl adecl, IAType itemType) throws AlgebricksException {
-        super(id,adecl, itemType);
+    public ExternalFeedDataSource(AqlSourceId id, Dataset dataset, IAType itemType) throws AlgebricksException {
+        super(id, dataset, itemType);
     }
 
-    public ExternalFeedDataSource(AqlSourceId id, AqlCompiledDatasetDecl adecl, IAType itemType, AqlDataSourceType dataSourceType) throws AlgebricksException {
-        super(id,adecl, itemType, dataSourceType);
+    public ExternalFeedDataSource(AqlSourceId id, Dataset dataset, IAType itemType, AqlDataSourceType dataSourceType)
+            throws AlgebricksException {
+        super(id, dataset, itemType, dataSourceType);
     }
-    
-  
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/IAqlCompiledDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/IAqlCompiledDatasetDetails.java
deleted file mode 100644
index 2253db9..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/IAqlCompiledDatasetDetails.java
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.declared;
-
-import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
-
-public interface IAqlCompiledDatasetDetails {
-
-    public DatasetType getDatasetType();
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
new file mode 100644
index 0000000..53513d2
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.declared;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
+import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
+
+public class ResultSetDataSink implements IDataSink {
+
+    private ResultSetSinkId id;
+    private Object[] schemaTypes;
+
+    public ResultSetDataSink(ResultSetSinkId id, Object[] schemaTypes) {
+        this.id = id;
+        this.schemaTypes = schemaTypes;
+    }
+
+    @Override
+    public ResultSetSinkId getId() {
+        return id;
+    }
+
+    @Override
+    public Object[] getSchemaTypes() {
+        return schemaTypes;
+    }
+
+    @Override
+    public IPartitioningProperty getPartitioningProperty() {
+        return IPartitioningProperty.UNPARTITIONED;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
new file mode 100644
index 0000000..fc5152f
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.declared;
+
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+
+public class ResultSetSinkId {
+
+    private final ResultSetId resultSetId;
+
+    private final String resultNodeName;
+
+    public ResultSetSinkId(ResultSetId resultSetId, String resultNodeName) {
+        this.resultSetId = resultSetId;
+        this.resultNodeName = resultNodeName;
+    }
+
+    @Override
+    public String toString() {
+        return "ResultSetId: " + resultSetId + "@" + resultNodeName;
+    }
+
+    public ResultSetId getResultSetId() {
+        return resultSetId;
+    }
+
+    public String getResultNodeName() {
+        return resultNodeName;
+    }
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinArtifactMap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinArtifactMap.java
deleted file mode 100644
index cc48d1e..0000000
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinArtifactMap.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2009-2011 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.metadata.entities;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
-import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
-import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-
-public class AsterixBuiltinArtifactMap {
-
-    public enum ARTIFACT_KIND {
-        DATASET,
-        DATAVERSE,
-        FUNCTION,
-        NODEGROUP
-    }
-
-    public static final String ARTIFACT_TYPE_DATASET = "DATASET";
-    public static final String ARTIFACT_TYPE_DATAVERSE = "DATAVERSE";
-    public static final String ARTIFACT_TYPE_FUNCTION = "FUNCTION";
-    public static final String ARTIFACT_TYPE_NODEGROUP = "NODEGROUP";
-
-    public static final String DATASET_DATASETS = "Dataset";
-    public static final String DATASET_INDEX = "Index";
-    public static final String DATASET_NODEGROUP = "NodeGroup";
-
-    public static final String DATAVERSE_METADATA = "Metadata";
-
-    public static final String NODEGROUP_DEFAULT = MetadataConstants.METADATA_DEFAULT_NODEGROUP_NAME;
-
-    private static final Map<ARTIFACT_KIND, Set<String>> builtinArtifactMap = new HashMap<ARTIFACT_KIND, Set<String>>();
-
-    static {
-        Set<String> datasets = new HashSet<String>();
-        datasets.add(DATASET_DATASETS);
-        datasets.add(DATASET_INDEX);
-        datasets.add(DATASET_NODEGROUP);
-        builtinArtifactMap.put(ARTIFACT_KIND.DATASET, datasets);
-
-        Set<String> dataverses = new HashSet<String>();
-        dataverses.add(DATAVERSE_METADATA);
-        builtinArtifactMap.put(ARTIFACT_KIND.DATAVERSE, dataverses);
-
-        Set<String> nodeGroups = new HashSet<String>();
-        nodeGroups.add(NODEGROUP_DEFAULT);
-        builtinArtifactMap.put(ARTIFACT_KIND.NODEGROUP, nodeGroups);
-
-    }
-
-    public static boolean isSystemProtectedArtifact(ARTIFACT_KIND kind, Object artifactIdentifier) {
-        switch (kind) {
-            case NODEGROUP:
-            case DATASET:
-            case DATAVERSE:
-                return builtinArtifactMap.get(kind).contains((String) artifactIdentifier);
-
-            case FUNCTION:
-                return AsterixBuiltinFunctions.isBuiltinCompilerFunction((FunctionIdentifier) artifactIdentifier);
-            default:
-                return false;
-        }
-    }
-}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinTypeMap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinTypeMap.java
index 734237e..27cf542 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinTypeMap.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/AsterixBuiltinTypeMap.java
@@ -40,6 +40,7 @@
         _builtinTypeMap.put("time", BuiltinType.ATIME);
         _builtinTypeMap.put("datetime", BuiltinType.ADATETIME);
         _builtinTypeMap.put("duration", BuiltinType.ADURATION);
+        _builtinTypeMap.put("interval", BuiltinType.AINTERVAL);
         _builtinTypeMap.put("point", BuiltinType.APOINT);
         _builtinTypeMap.put("point3d", BuiltinType.APOINT3D);
         _builtinTypeMap.put("line", BuiltinType.ALINE);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataset.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataset.java
index e810bc9..91a18f3 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataset.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataset.java
@@ -15,6 +15,8 @@
 
 package edu.uci.ics.asterix.metadata.entities;
 
+import java.util.Map;
+
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
 import edu.uci.ics.asterix.metadata.MetadataCache;
@@ -30,18 +32,26 @@
     private final String dataverseName;
     // Enforced to be unique within a dataverse.
     private final String datasetName;
-    // Type of values stored in this dataset.
-    private final String datatypeName;
+    // Type of items stored in this dataset.
+    private final String itemTypeName;
     private final DatasetType datasetType;
-    private IDatasetDetails datasetDetails;
+    private final IDatasetDetails datasetDetails;
+    // Hints related to cardinatlity of dataset, avg size of tuples etc.
+    private final Map<String, String> hints;
+    private final int datasetId;
+    // Type of pending operations with respect to atomic DDL operation
+    private final int pendingOp;
 
-    public Dataset(String dataverseName, String datasetName, String datatypeName, IDatasetDetails datasetDetails,
-            DatasetType datasetType) {
+    public Dataset(String dataverseName, String datasetName, String itemTypeName, IDatasetDetails datasetDetails,
+            Map<String, String> hints, DatasetType datasetType, int datasetId, int pendingOp) {
         this.dataverseName = dataverseName;
         this.datasetName = datasetName;
-        this.datatypeName = datatypeName;
+        this.itemTypeName = itemTypeName;
         this.datasetType = datasetType;
         this.datasetDetails = datasetDetails;
+        this.datasetId = datasetId;
+        this.pendingOp = pendingOp;
+        this.hints = hints;
     }
 
     public String getDataverseName() {
@@ -52,11 +62,11 @@
         return datasetName;
     }
 
-    public String getDatatypeName() {
-        return datatypeName;
+    public String getItemTypeName() {
+        return itemTypeName;
     }
 
-    public DatasetType getType() {
+    public DatasetType getDatasetType() {
         return datasetType;
     }
 
@@ -64,8 +74,16 @@
         return datasetDetails;
     }
 
-    public void setDatasetDetails(IDatasetDetails datasetDetails) {
-        this.datasetDetails = datasetDetails;
+    public Map<String, String> getHints() {
+        return hints;
+    }
+
+    public int getDatasetId() {
+        return datasetId;
+    }
+
+    public int getPendingOp() {
+        return pendingOp;
     }
 
     @Override
@@ -77,4 +95,22 @@
     public Object dropFromCache(MetadataCache cache) {
         return cache.dropDataset(this);
     }
+
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        if (!(other instanceof Dataset)) {
+            return false;
+        }
+        Dataset otherDataset = (Dataset) other;
+        if (!otherDataset.dataverseName.equals(dataverseName)) {
+            return false;
+        }
+        if (!otherDataset.datasetName.equals(datasetName)) {
+            return false;
+        }
+        return true;
+    }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java
new file mode 100644
index 0000000..2955a08
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/DatasourceAdapter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.metadata.entities;
+
+import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
+import edu.uci.ics.asterix.metadata.MetadataCache;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+
+public class DatasourceAdapter implements IMetadataEntity {
+
+    public enum AdapterType {
+        INTERNAL,
+        EXTERNAL
+    }
+
+    private final AdapterIdentifier adapterIdentifier;
+    private final String classname;
+    private final AdapterType type;
+
+    public DatasourceAdapter(AdapterIdentifier adapterIdentifier, String classname, AdapterType type) {
+        this.adapterIdentifier = adapterIdentifier;
+        this.classname = classname;
+        this.type = type;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addAdapterIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropAdapter(this);
+    }
+
+    public AdapterIdentifier getAdapterIdentifier() {
+        return adapterIdentifier;
+    }
+
+    public String getClassname() {
+        return classname;
+    }
+
+    public AdapterType getType() {
+        return type;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
index bacd812..3902282 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
@@ -27,10 +27,12 @@
     // Enforced to be unique within an Asterix cluster..
     private final String dataverseName;
     private final String dataFormat;
+    private final int pendingOp;
 
-    public Dataverse(String dataverseName, String format) {
+    public Dataverse(String dataverseName, String format, int pendingOp) {
         this.dataverseName = dataverseName;
         this.dataFormat = format;
+        this.pendingOp = pendingOp;
     }
 
     public String getDataverseName() {
@@ -40,6 +42,10 @@
     public String getDataFormat() {
         return dataFormat;
     }
+    
+    public int getPendingOp() {
+        return pendingOp;
+    }
 
     @Override
     public Object addToCache(MetadataCache cache) {
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/ExternalDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/ExternalDatasetDetails.java
index 76895ca..18cef340 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/ExternalDatasetDetails.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/ExternalDatasetDetails.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,17 +12,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package edu.uci.ics.asterix.metadata.entities;
 
 import java.io.DataOutput;
 import java.io.IOException;
 import java.util.Map;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
@@ -33,7 +34,7 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class ExternalDatasetDetails implements IDatasetDetails {
 
@@ -42,7 +43,7 @@
     private final Map<String, String> properties;
 
     private final static ARecordType externalRecordType = MetadataRecordTypes.EXTERNAL_DETAILS_RECORDTYPE;
-    private final static ARecordType propertyRecordType = MetadataRecordTypes.ADAPTER_PROPERTIES_RECORDTYPE;
+    private final static ARecordType propertyRecordType = MetadataRecordTypes.DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE;
 
     public ExternalDatasetDetails(String adapter, Map<String, String> properties) {
         this.properties = properties;
@@ -65,7 +66,7 @@
     @Override
     public void writeDatasetDetailsRecordType(DataOutput out) throws HyracksDataException {
         IARecordBuilder externalRecordBuilder = new RecordBuilder();
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         externalRecordBuilder.reset(externalRecordType);
@@ -77,7 +78,8 @@
         fieldValue.reset();
         aString.setValue(this.getAdapter());
         stringSerde.serialize(aString, fieldValue.getDataOutput());
-        externalRecordBuilder.addField(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_ADAPTER_FIELD_INDEX, fieldValue);
+        externalRecordBuilder.addField(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX,
+                fieldValue);
 
         // write field 1
         listBuilder.reset((AOrderedListType) externalRecordType.getFieldTypes()[1]);
@@ -94,8 +96,8 @@
 
         try {
             externalRecordBuilder.write(out, true);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
         }
 
     }
@@ -122,8 +124,8 @@
 
         try {
             propertyRecordBuilder.write(out, true);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
         }
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
index 36db14a..22de3d3 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/FeedDatasetDetails.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,6 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package edu.uci.ics.asterix.metadata.entities;
 
 import java.io.DataOutput;
@@ -19,11 +20,12 @@
 import java.util.List;
 import java.util.Map;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.om.base.AMutableString;
@@ -32,14 +34,19 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
+/**
+ * Provides functionality for writing parameters for a FEED dataset into the
+ * Metadata. Since FEED dataset is a special kind of INTERNAL dataset, this
+ * class extends InternalDatasetDetails.
+ */
 public class FeedDatasetDetails extends InternalDatasetDetails {
 
     private static final long serialVersionUID = 1L;
-    private final String adapter;
+    private final String adapterFactory;
     private final Map<String, String> properties;
-    private String functionIdentifier;
+    private final FunctionSignature signature;
     private FeedState feedState;
 
     public enum FeedState {
@@ -53,12 +60,12 @@
     }
 
     public FeedDatasetDetails(FileStructure fileStructure, PartitioningStrategy partitioningStrategy,
-            List<String> partitioningKey, List<String> primaryKey, String groupName, String adapter,
-            Map<String, String> properties, String functionIdentifier, String feedState) {
+            List<String> partitioningKey, List<String> primaryKey, String groupName, String adapterFactory,
+            Map<String, String> properties, FunctionSignature signature, String feedState) {
         super(fileStructure, partitioningStrategy, partitioningKey, primaryKey, groupName);
         this.properties = properties;
-        this.adapter = adapter;
-        this.functionIdentifier = functionIdentifier;
+        this.adapterFactory = adapterFactory;
+        this.signature = signature;
         this.feedState = feedState.equals(FeedState.ACTIVE.toString()) ? FeedState.ACTIVE : FeedState.INACTIVE;
     }
 
@@ -70,7 +77,7 @@
     @Override
     public void writeDatasetDetailsRecordType(DataOutput out) throws HyracksDataException {
         IARecordBuilder feedRecordBuilder = new RecordBuilder();
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         feedRecordBuilder.reset(MetadataRecordTypes.FEED_DETAILS_RECORDTYPE);
@@ -92,7 +99,7 @@
 
         // write field 2
         listBuilder.reset((AOrderedListType) MetadataRecordTypes.FEED_DETAILS_RECORDTYPE.getFieldTypes()[2]);
-        for (String field : partitioningKey) {
+        for (String field : partitioningKeys) {
             itemValue.reset();
             aString.setValue(field);
             stringSerde.serialize(aString, itemValue.getDataOutput());
@@ -100,11 +107,11 @@
         }
         fieldValue.reset();
         listBuilder.write(fieldValue.getDataOutput(), true);
-        feedRecordBuilder.addField(MetadataRecordTypes.FEEDL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX, fieldValue);
+        feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX, fieldValue);
 
         // write field 3
         listBuilder.reset((AOrderedListType) MetadataRecordTypes.FEED_DETAILS_RECORDTYPE.getFieldTypes()[3]);
-        for (String field : primaryKey) {
+        for (String field : primaryKeys) {
             itemValue.reset();
             aString.setValue(field);
             stringSerde.serialize(aString, itemValue.getDataOutput());
@@ -122,9 +129,9 @@
 
         // write field 5
         fieldValue.reset();
-        aString.setValue(getAdapter());
+        aString.setValue(getAdapterFactory());
         stringSerde.serialize(aString, fieldValue.getDataOutput());
-        feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_ADAPTER_FIELD_INDEX, fieldValue);
+        feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX, fieldValue);
 
         // write field 6
         listBuilder.reset((AOrderedListType) MetadataRecordTypes.FEED_DETAILS_RECORDTYPE.getFieldTypes()[6]);
@@ -141,8 +148,8 @@
 
         // write field 7
         fieldValue.reset();
-        if (getFunctionIdentifier() != null) {
-            aString.setValue(getFunctionIdentifier());
+        if (signature != null) {
+            aString.setValue(signature.toString());
             stringSerde.serialize(aString, fieldValue.getDataOutput());
             feedRecordBuilder.addField(MetadataRecordTypes.FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX, fieldValue);
         }
@@ -155,8 +162,8 @@
 
         try {
             feedRecordBuilder.write(out, true);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
         }
 
     }
@@ -164,7 +171,7 @@
     public void writePropertyTypeRecord(String name, String value, DataOutput out) throws HyracksDataException {
         IARecordBuilder propertyRecordBuilder = new RecordBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
-        propertyRecordBuilder.reset(MetadataRecordTypes.ADAPTER_PROPERTIES_RECORDTYPE);
+        propertyRecordBuilder.reset(MetadataRecordTypes.DATASOURCE_ADAPTER_PROPERTIES_RECORDTYPE);
         AMutableString aString = new AMutableString("");
         ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
                 .getSerializerDeserializer(BuiltinType.ASTRING);
@@ -183,8 +190,8 @@
 
         try {
             propertyRecordBuilder.write(out, true);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
         }
     }
 
@@ -196,20 +203,16 @@
         this.feedState = feedState;
     }
 
-    public String getAdapter() {
-        return adapter;
+    public String getAdapterFactory() {
+        return adapterFactory;
     }
 
     public Map<String, String> getProperties() {
         return properties;
     }
 
-    public String getFunctionIdentifier() {
-        return functionIdentifier;
-    }
-
-    public void setFunctionIdentifier(String functionIdentifier) {
-        this.functionIdentifier = functionIdentifier;
+    public FunctionSignature getFunction() {
+        return signature;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
index d89bb11..b3e5076 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
@@ -7,63 +7,73 @@
 
 public class Function implements IMetadataEntity {
 
-	private String dataverseName;
-	private String functionName;
-	private int arity;
-	private List<String> params;
-	private String functionBody;
+    public static final String LANGUAGE_AQL = "AQL";
+    public static final String LANGUAGE_JAVA = "JAVA";
 
-	public Function(String dataverseName, String functionName, int arity,
-			List<String> params,
-			String functionBody) {
-		this.dataverseName = dataverseName;
-		this.functionName = functionName;
-		this.arity = arity;
-		this.params = params;
-		this.functionBody = functionBody;
-	}
+    public static final String RETURNTYPE_VOID = "VOID";
+    public static final String NOT_APPLICABLE = "N/A";
 
-	public String getDataverseName() {
-		return dataverseName;
-	}
+    private final String dataverse;
+    private final String name;
+    private final int arity;
+    private final List<String> params;
+    private final String body;
+    private final String returnType;
+    private final String language;
+    private final String kind;
 
-	public void setDataverseName(String dataverseName) {
-		this.dataverseName = dataverseName;
-	}
+    public Function(String dataverseName, String functionName, int arity, List<String> params, String returnType,
+            String functionBody, String language, String functionKind) {
+        this.dataverse = dataverseName;
+        this.name = functionName;
+        this.params = params;
+        this.body = functionBody;
+        this.returnType = returnType == null ? RETURNTYPE_VOID : returnType;
+        this.language = language;
+        this.kind = functionKind;
+        this.arity = arity;
+    }
 
-	public String getFunctionName() {
-		return functionName;
-	}
+    public String getDataverseName() {
+        return dataverse;
+    }
 
-	public int getFunctionArity() {
-		return arity;
-	}
+    public String getName() {
+        return name;
+    }
 
-	public List<String> getParams() {
-		return params;
-	}
+    public List<String> getParams() {
+        return params;
+    }
 
-	public void setParams(List<String> params) {
-		this.params = params;
-	}
+    public String getFunctionBody() {
+        return body;
+    }
 
-	public String getFunctionBody() {
-		return functionBody;
-	}
+    public String getReturnType() {
+        return returnType;
+    }
 
-	public void setFunctionBody(String functionBody) {
-		this.functionBody = functionBody;
-	}
+    public String getLanguage() {
+        return language;
+    }
 
-	@Override
-	public Object addToCache(MetadataCache cache) {
-		return cache.addFunctionIfNotExists(this);
-	}
+    public int getArity() {
+        return arity;
+    }
 
-	@Override
-	public Object dropFromCache(MetadataCache cache) {
-		return cache.dropFunction(this);
-	}
+    public String getKind() {
+        return kind;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addFunctionIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropFunction(this);
+    }
 
 }
-
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
index 4a648fe..6d65730 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
@@ -19,11 +19,19 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.metadata.MetadataCache;
+import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
 /**
  * Metadata describing an index.
  */
-public class Index implements Serializable {
+public class Index implements IMetadataEntity {
 
     private static final long serialVersionUID = 1L;
 
@@ -35,15 +43,33 @@
     private final IndexType indexType;
     private final List<String> keyFieldNames;
     private final boolean isPrimaryIndex;
+    // Specific to NGRAM indexes.
+    private final int gramLength;
+    // Type of pending operations with respect to atomic DDL operation
+    private final int pendingOp;
 
     public Index(String dataverseName, String datasetName, String indexName, IndexType indexType,
-            List<String> keyFieldNames, boolean isPrimaryIndex) {
+            List<String> keyFieldNames, int gramLength, boolean isPrimaryIndex, int pendingOp) {
         this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.indexName = indexName;
         this.indexType = indexType;
         this.keyFieldNames = keyFieldNames;
+        this.gramLength = gramLength;
         this.isPrimaryIndex = isPrimaryIndex;
+        this.pendingOp = pendingOp;
+    }
+
+    public Index(String dataverseName, String datasetName, String indexName, IndexType indexType,
+            List<String> keyFieldNames, boolean isPrimaryIndex, int pendingOp) {
+        this.dataverseName = dataverseName;
+        this.datasetName = datasetName;
+        this.indexName = indexName;
+        this.indexType = indexType;
+        this.keyFieldNames = keyFieldNames;
+        this.gramLength = -1;
+        this.isPrimaryIndex = isPrimaryIndex;
+        this.pendingOp = pendingOp;
     }
 
     public String getDataverseName() {
@@ -62,6 +88,10 @@
         return keyFieldNames;
     }
 
+    public int getGramLength() {
+        return gramLength;
+    }
+
     public IndexType getIndexType() {
         return indexType;
     }
@@ -69,8 +99,71 @@
     public boolean isPrimaryIndex() {
         return isPrimaryIndex;
     }
+    
+    public int getPendingOp() {
+        return pendingOp;
+    }
 
     public boolean isSecondaryIndex() {
         return !isPrimaryIndex();
     }
+
+    public static Pair<IAType, Boolean> getNonNullableKeyFieldType(String expr, ARecordType recType)
+            throws AlgebricksException {
+        IAType keyType = Index.keyFieldType(expr, recType);
+        boolean nullable = false;
+        if (keyType.getTypeTag() == ATypeTag.UNION) {
+            AUnionType unionType = (AUnionType) keyType;
+            if (unionType.isNullableType()) {
+                // The non-null type is always at index 1.
+                keyType = unionType.getUnionList().get(1);
+                nullable = true;
+            }
+        }
+        return new Pair<IAType, Boolean>(keyType, nullable);
+    }
+
+    private static IAType keyFieldType(String expr, ARecordType recType) throws AlgebricksException {
+        String[] names = recType.getFieldNames();
+        int n = names.length;
+        for (int i = 0; i < n; i++) {
+            if (names[i].equals(expr)) {
+                return recType.getFieldTypes()[i];
+            }
+        }
+        throw new AlgebricksException("Could not find field " + expr + " in the schema.");
+    }
+
+    @Override
+    public int hashCode() {
+        return indexName.hashCode() ^ datasetName.hashCode() ^ dataverseName.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (!(other instanceof Index)) {
+            return false;
+        }
+        Index otherIndex = (Index) other;
+        if (!indexName.equals(otherIndex.getIndexName())) {
+            return false;
+        }
+        if (!datasetName.equals(otherIndex.getDatasetName())) {
+            return false;
+        }
+        if (!dataverseName.equals(otherIndex.getDataverseName())) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addIndexIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropIndex(this);
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/InternalDatasetDetails.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/InternalDatasetDetails.java
index de51dc8..4267af2 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/InternalDatasetDetails.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/InternalDatasetDetails.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2011 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,17 +12,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package edu.uci.ics.asterix.metadata.entities;
 
 import java.io.DataOutput;
 import java.io.IOException;
 import java.util.List;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
@@ -32,7 +33,7 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class InternalDatasetDetails implements IDatasetDetails {
 
@@ -48,29 +49,29 @@
 
     protected final FileStructure fileStructure;
     protected final PartitioningStrategy partitioningStrategy;
-    protected final List<String> partitioningKey;
-    protected final List<String> primaryKey;
-    protected final String groupName;
+    protected final List<String> partitioningKeys;
+    protected final List<String> primaryKeys;
+    protected final String nodeGroupName;
 
     public InternalDatasetDetails(FileStructure fileStructure, PartitioningStrategy partitioningStrategy,
             List<String> partitioningKey, List<String> primaryKey, String groupName) {
         this.fileStructure = fileStructure;
         this.partitioningStrategy = partitioningStrategy;
-        this.partitioningKey = partitioningKey;
-        this.primaryKey = primaryKey;
-        this.groupName = groupName;
+        this.partitioningKeys = partitioningKey;
+        this.primaryKeys = primaryKey;
+        this.nodeGroupName = groupName;
     }
 
     public String getNodeGroupName() {
-        return this.groupName;
+        return nodeGroupName;
     }
 
     public List<String> getPartitioningKey() {
-        return this.partitioningKey;
+        return partitioningKeys;
     }
 
     public List<String> getPrimaryKey() {
-        return primaryKey;
+        return primaryKeys;
     }
 
     public FileStructure getFileStructure() {
@@ -90,7 +91,7 @@
     public void writeDatasetDetailsRecordType(DataOutput out) throws HyracksDataException {
 
         IARecordBuilder internalRecordBuilder = new RecordBuilder();
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         internalRecordBuilder.reset(MetadataRecordTypes.INTERNAL_DETAILS_RECORDTYPE);
@@ -115,7 +116,7 @@
         // write field 2
         listBuilder
                 .reset((AOrderedListType) MetadataRecordTypes.INTERNAL_DETAILS_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX]);
-        for (String field : partitioningKey) {
+        for (String field : partitioningKeys) {
             itemValue.reset();
             aString.setValue(field);
             stringSerde.serialize(aString, itemValue.getDataOutput());
@@ -129,7 +130,7 @@
         // write field 3
         listBuilder
                 .reset((AOrderedListType) MetadataRecordTypes.INTERNAL_DETAILS_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX]);
-        for (String field : primaryKey) {
+        for (String field : primaryKeys) {
             itemValue.reset();
             aString.setValue(field);
             stringSerde.serialize(aString, itemValue.getDataOutput());
@@ -147,8 +148,8 @@
 
         try {
             internalRecordBuilder.write(out, true);
-        } catch (IOException ioe) {
-            throw new HyracksDataException(ioe);
+        } catch (IOException | AsterixException e) {
+            throw new HyracksDataException(e);
         }
     }
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
index 7e85909..377efc7 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/AbstractTupleTranslator.java
@@ -24,9 +24,9 @@
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleReference;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
 
 /**
  * Contains common members shared across all concrete implementations of
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
index 78703f3..61f856a 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasetTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -28,10 +28,13 @@
 
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.common.config.DatasetConfig;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
@@ -40,15 +43,21 @@
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails.FileStructure;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails.PartitioningStrategy;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AOrderedList;
 import edu.uci.ics.asterix.om.base.ARecord;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.base.AUnorderedList;
 import edu.uci.ics.asterix.om.base.IACursor;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
 /**
  * Translates a Dataset metadata entity to an ITupleReference and vice versa.
@@ -62,15 +71,17 @@
     // Payload field containing serialized Dataset.
     public static final int DATASET_PAYLOAD_TUPLE_FIELD_INDEX = 2;
 
-    private FileSplit[] splits;
-    private List<String> partitioningKey;
-    private List<String> primaryKey;
     @SuppressWarnings("unchecked")
     private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(MetadataRecordTypes.DATASET_RECORDTYPE);
+    private AMutableInt32 aInt32;
+    protected ISerializerDeserializer<AInt32> aInt32Serde;
 
+    @SuppressWarnings("unchecked")
     public DatasetTupleTranslator(boolean getTuple) {
         super(getTuple, MetadataPrimaryIndexes.DATASET_DATASET.getFieldCount());
+        aInt32 = new AMutableInt32(-1);
+        aInt32Serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
     }
 
     @Override
@@ -85,6 +96,7 @@
     }
 
     private Dataset createDatasetFromARecord(ARecord datasetRecord) {
+
         String dataverseName = ((AString) datasetRecord
                 .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
         String datasetName = ((AString) datasetRecord
@@ -93,8 +105,74 @@
                 .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATATYPENAME_FIELD_INDEX)).getStringValue();
         DatasetType datasetType = DatasetType.valueOf(((AString) datasetRecord.getValueByPos(3)).getStringValue());
         IDatasetDetails datasetDetails = null;
+        int datasetId = ((AInt32) datasetRecord
+                .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_DATASETID_FIELD_INDEX)).getIntegerValue();
+        int pendingOp = ((AInt32) datasetRecord
+                .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_PENDINGOP_FIELD_INDEX)).getIntegerValue();
         switch (datasetType) {
-            case FEED:
+            case FEED: {
+                ARecord datasetDetailsRecord = (ARecord) datasetRecord
+                        .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_FEEDDETAILS_FIELD_INDEX);
+                FileStructure fileStructure = FileStructure.valueOf(((AString) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX))
+                        .getStringValue());
+                PartitioningStrategy partitioningStrategy = PartitioningStrategy
+                        .valueOf(((AString) datasetDetailsRecord
+                                .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX))
+                                .getStringValue());
+                IACursor cursor = ((AOrderedList) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX)).getCursor();
+                List<String> partitioningKey = new ArrayList<String>();
+                while (cursor.next())
+                    partitioningKey.add(((AString) cursor.get()).getStringValue());
+                String groupName = ((AString) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX))
+                        .getStringValue();
+                String adapter = ((AString) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX))
+                        .getStringValue();
+                cursor = ((AOrderedList) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX)).getCursor();
+                Map<String, String> properties = new HashMap<String, String>();
+                String key;
+                String value;
+                while (cursor.next()) {
+                    ARecord field = (ARecord) cursor.get();
+                    key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
+                            .getStringValue();
+                    value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
+                            .getStringValue();
+                    properties.put(key, value);
+                }
+
+                Object o = datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX);
+                FunctionSignature signature = null;
+                if (!(o instanceof ANull)) {
+                    String functionIdentifier = ((AString) o).getStringValue();
+                    String[] qnameComponents = functionIdentifier.split("\\.");
+                    String functionDataverse;
+                    String functionName;
+                    if (qnameComponents.length == 2) {
+                        functionDataverse = qnameComponents[0];
+                        functionName = qnameComponents[1];
+                    } else {
+                        functionDataverse = dataverseName;
+                        functionName = qnameComponents[0];
+                    }
+
+                    String[] nameComponents = functionName.split("@");
+                    signature = new FunctionSignature(functionDataverse, nameComponents[0],
+                            Integer.parseInt(nameComponents[1]));
+                }
+
+                String feedState = ((AString) datasetDetailsRecord
+                        .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_STATE_FIELD_INDEX)).getStringValue();
+
+                datasetDetails = new FeedDatasetDetails(fileStructure, partitioningStrategy, partitioningKey,
+                        partitioningKey, groupName, adapter, properties, signature, feedState);
+                break;
+            }
             case INTERNAL: {
                 ARecord datasetDetailsRecord = (ARecord) datasetRecord
                         .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX);
@@ -115,41 +193,9 @@
                         .getValueByPos(MetadataRecordTypes.INTERNAL_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX))
                         .getStringValue();
 
-                if (datasetType == DatasetConfig.DatasetType.INTERNAL) {
-                    datasetDetails = new InternalDatasetDetails(fileStructure, partitioningStrategy, partitioningKey,
-                            partitioningKey, groupName);
-                } else {
-                    String adapter = ((AString) datasetDetailsRecord
-                            .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_ADAPTER_FIELD_INDEX))
-                            .getStringValue();
-                    cursor = ((AOrderedList) datasetDetailsRecord
-                            .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX))
-                            .getCursor();
-                    Map<String, String> properties = new HashMap<String, String>();
-                    String key;
-                    String value;
-                    while (cursor.next()) {
-                        ARecord field = (ARecord) cursor.get();
-                        key = ((AString) field
-                                .getValueByPos(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX))
-                                .getStringValue();
-                        value = ((AString) field
-                                .getValueByPos(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX))
-                                .getStringValue();
-                        properties.put(key, value);
-                    }
+                datasetDetails = new InternalDatasetDetails(fileStructure, partitioningStrategy, partitioningKey,
+                        partitioningKey, groupName);
 
-                    String functionIdentifier = ((AString) datasetDetailsRecord
-                            .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX))
-                            .getStringValue();
-
-                    String feedState = ((AString) datasetDetailsRecord
-                            .getValueByPos(MetadataRecordTypes.FEED_DETAILS_ARECORD_STATE_FIELD_INDEX))
-                            .getStringValue();
-
-                     datasetDetails = new FeedDatasetDetails(fileStructure, partitioningStrategy, partitioningKey,
-                            partitioningKey, groupName, adapter, properties, functionIdentifier, feedState);
-                }
                 break;
             }
 
@@ -157,7 +203,7 @@
                 ARecord datasetDetailsRecord = (ARecord) datasetRecord
                         .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX);
                 String adapter = ((AString) datasetDetailsRecord
-                        .getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_ADAPTER_FIELD_INDEX))
+                        .getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_DATASOURCE_ADAPTER_FIELD_INDEX))
                         .getStringValue();
                 IACursor cursor = ((AOrderedList) datasetDetailsRecord
                         .getValueByPos(MetadataRecordTypes.EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX))
@@ -167,21 +213,22 @@
                 String value;
                 while (cursor.next()) {
                     ARecord field = (ARecord) cursor.get();
-                    key = ((AString) field
-                            .getValueByPos(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX))
+                    key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
                             .getStringValue();
-                    value = ((AString) field
-                            .getValueByPos(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX))
+                    value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
                             .getStringValue();
                     properties.put(key, value);
                 }
                 datasetDetails = new ExternalDatasetDetails(adapter, properties);
         }
-        return new Dataset(dataverseName, datasetName, typeName, datasetDetails, datasetType);
+        
+        Map<String, String> hints = getDatasetHints(datasetRecord);
+        
+        return new Dataset(dataverseName, datasetName, typeName, datasetDetails, hints, datasetType, datasetId, pendingOp);
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(Dataset dataset) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(Dataset dataset) throws IOException, MetadataException {
         // write the key in the first 2 fields of the tuple
         tupleBuilder.reset();
         aString.setValue(dataset.getDataverseName());
@@ -209,13 +256,13 @@
 
         // write field 2
         fieldValue.reset();
-        aString.setValue(dataset.getDatatypeName());
+        aString.setValue(dataset.getItemTypeName());
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_DATATYPENAME_FIELD_INDEX, fieldValue);
 
         // write field 3
         fieldValue.reset();
-        aString.setValue(dataset.getType().toString());
+        aString.setValue(dataset.getDatasetType().toString());
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_DATASETTYPE_FIELD_INDEX, fieldValue);
 
@@ -224,13 +271,45 @@
         writeDatasetDetailsRecordType(recordBuilder, dataset, fieldValue.getDataOutput());
 
         // write field 7
+        UnorderedListBuilder listBuilder = new UnorderedListBuilder();
+        listBuilder
+                .reset((AUnorderedListType) MetadataRecordTypes.DATASET_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.DATASET_ARECORD_HINTS_FIELD_INDEX]);
+        ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
+        for (Map.Entry<String, String> property : dataset.getHints().entrySet()) {
+            String name = property.getKey();
+            String value = property.getValue();
+            itemValue.reset();
+            writeDatasetHintRecord(name, value, itemValue.getDataOutput());
+            listBuilder.addItem(itemValue);
+        }
+        fieldValue.reset();
+        listBuilder.write(fieldValue.getDataOutput(), true);
+        recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_HINTS_FIELD_INDEX, fieldValue);
+
+        // write field 8
         fieldValue.reset();
         aString.setValue(Calendar.getInstance().getTime().toString());
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
 
+        // write field 9
+        fieldValue.reset();
+        aInt32.setValue(dataset.getDatasetId());
+        aInt32Serde.serialize(aInt32, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_DATASETID_FIELD_INDEX, fieldValue);
+
+        // write field 10
+        fieldValue.reset();
+        aInt32.setValue(dataset.getPendingOp());
+        aInt32Serde.serialize(aInt32, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_PENDINGOP_FIELD_INDEX, fieldValue);
+
         // write record
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
 
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
@@ -241,7 +320,7 @@
             throws HyracksDataException {
 
         dataset.getDatasetDetails().writeDatasetDetailsRecordType(fieldValue.getDataOutput());
-        switch (dataset.getType()) {
+        switch (dataset.getDatasetType()) {
             case INTERNAL:
                 recordBuilder.addField(MetadataRecordTypes.DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX, fieldValue);
                 break;
@@ -255,23 +334,49 @@
 
     }
 
-    public void writePropertyTypeRecord(String name, String value, DataOutput out) throws IOException {
+    private Map<String, String> getDatasetHints(ARecord datasetRecord) {
+        Map<String, String> hints = new HashMap<String, String>();
+        String key;
+        String value;
+        AUnorderedList list = (AUnorderedList) datasetRecord
+                .getValueByPos(MetadataRecordTypes.DATASET_ARECORD_HINTS_FIELD_INDEX);
+        IACursor cursor = list.getCursor();
+        while (cursor.next()) {
+            ARecord field = (ARecord) cursor.get();
+            key = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_NAME_FIELD_INDEX))
+                    .getStringValue();
+            value = ((AString) field.getValueByPos(MetadataRecordTypes.DATASOURCE_PROPERTIES_VALUE_FIELD_INDEX))
+                    .getStringValue();
+            hints.put(key, value);
+        }
+        return hints;
+    }
+
+    private void writeDatasetHintRecord(String name, String value, DataOutput out) throws HyracksDataException {
         IARecordBuilder propertyRecordBuilder = new RecordBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
-        propertyRecordBuilder.reset(MetadataRecordTypes.ADAPTER_PROPERTIES_RECORDTYPE);
+        propertyRecordBuilder.reset(MetadataRecordTypes.DATASET_HINTS_RECORDTYPE);
+        AMutableString aString = new AMutableString("");
+        ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ASTRING);
 
         // write field 0
         fieldValue.reset();
         aString.setValue(name);
         stringSerde.serialize(aString, fieldValue.getDataOutput());
-        propertyRecordBuilder.addField(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX, fieldValue);
+        propertyRecordBuilder.addField(0, fieldValue);
 
         // write field 1
         fieldValue.reset();
         aString.setValue(value);
         stringSerde.serialize(aString, fieldValue.getDataOutput());
-        propertyRecordBuilder.addField(MetadataRecordTypes.ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX, fieldValue);
+        propertyRecordBuilder.addField(1, fieldValue);
 
-        propertyRecordBuilder.write(out, true);
+        try {
+            propertyRecordBuilder.write(out, true);
+        } catch (IOException | AsterixException ioe) {
+            throw new HyracksDataException(ioe);
+        }
     }
+
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java
new file mode 100644
index 0000000..4a5e4dcf
--- /dev/null
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatasourceAdapterTupleTranslator.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.metadata.entitytupletranslators;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.Calendar;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter.AdapterType;
+import edu.uci.ics.asterix.om.base.ARecord;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+public class DatasourceAdapterTupleTranslator extends AbstractTupleTranslator<DatasourceAdapter> {
+
+    // Field indexes of serialized Adapter in a tuple.
+    // First key field.
+    public static final int ADAPTER_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
+    // Second key field.
+    public static final int ADAPTER_NAME_TUPLE_FIELD_INDEX = 1;
+
+    // Payload field containing serialized Adapter.
+    public static final int ADAPTER_PAYLOAD_TUPLE_FIELD_INDEX = 2;
+
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.DATASOURCE_ADAPTER_RECORDTYPE);
+
+    public DatasourceAdapterTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET.getFieldCount());
+    }
+
+    @Override
+    public DatasourceAdapter getMetadataEntytiFromTuple(ITupleReference tuple) throws MetadataException, IOException {
+        byte[] serRecord = tuple.getFieldData(ADAPTER_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = tuple.getFieldStart(ADAPTER_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = tuple.getFieldLength(ADAPTER_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord adapterRecord = (ARecord) recordSerDes.deserialize(in);
+        return createAdapterFromARecord(adapterRecord);
+    }
+
+    private DatasourceAdapter createAdapterFromARecord(ARecord adapterRecord) {
+        String dataverseName = ((AString) adapterRecord
+                .getValueByPos(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_DATAVERSENAME_FIELD_INDEX))
+                .getStringValue();
+        String adapterName = ((AString) adapterRecord
+                .getValueByPos(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_NAME_FIELD_INDEX)).getStringValue();
+        String classname = ((AString) adapterRecord
+                .getValueByPos(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_CLASSNAME_FIELD_INDEX)).getStringValue();
+        AdapterType adapterType = AdapterType.valueOf(((AString) adapterRecord
+                .getValueByPos(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_TYPE_FIELD_INDEX)).getStringValue());
+
+        return new DatasourceAdapter(new AdapterIdentifier(dataverseName, adapterName), classname, adapterType);
+    }
+
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(DatasourceAdapter adapter) throws IOException, MetadataException {
+        // write the key in the first 2 fields of the tuple
+        tupleBuilder.reset();
+        aString.setValue(adapter.getAdapterIdentifier().getNamespace());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(adapter.getAdapterIdentifier().getAdapterName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+
+        // write the pay-load in the third field of the tuple
+
+        recordBuilder.reset(MetadataRecordTypes.DATASOURCE_ADAPTER_RECORDTYPE);
+
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(adapter.getAdapterIdentifier().getNamespace());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_DATAVERSENAME_FIELD_INDEX, fieldValue);
+
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(adapter.getAdapterIdentifier().getAdapterName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_NAME_FIELD_INDEX, fieldValue);
+
+        // write field 2
+        fieldValue.reset();
+        aString.setValue(adapter.getClassname());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_CLASSNAME_FIELD_INDEX, fieldValue);
+
+        // write field 3
+        fieldValue.reset();
+        aString.setValue(adapter.getType().name());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_TYPE_FIELD_INDEX, fieldValue);
+
+        // write field 4
+        fieldValue.reset();
+        aString.setValue(Calendar.getInstance().getTime().toString());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATASOURCE_ADAPTER_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
+
+        // write record
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+        tupleBuilder.addFieldEndOffset();
+
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
+
+}
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
index df85c74..7cfa6d0 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -25,10 +25,10 @@
 import java.util.Calendar;
 import java.util.List;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataNode;
@@ -49,11 +49,11 @@
 import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.btree.exceptions.BTreeDuplicateKeyException;
 
@@ -81,11 +81,11 @@
     private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(MetadataRecordTypes.DATATYPE_RECORDTYPE);
     private final MetadataNode metadataNode;
-    private final long txnId;
+    private final JobId jobId;
 
-    public DatatypeTupleTranslator(long txnId, MetadataNode metadataNode, boolean getTuple) {
+    public DatatypeTupleTranslator(JobId jobId, MetadataNode metadataNode, boolean getTuple) {
         super(getTuple, MetadataPrimaryIndexes.DATATYPE_DATASET.getFieldCount());
-        this.txnId = txnId;
+        this.jobId = jobId;
         this.metadataNode = metadataNode;
     }
 
@@ -142,8 +142,12 @@
                         fieldTypes[fieldId] = getTypeFromTypeName(dataverseName, fieldTypeName);
                         fieldId++;
                     }
-                    return new Datatype(dataverseName, datatypeName, new ARecordType(datatypeName, fieldNames,
-                            fieldTypes, isOpen), isAnonymous);
+                    try {
+                        return new Datatype(dataverseName, datatypeName, new ARecordType(datatypeName, fieldNames,
+                                fieldTypes, isOpen), isAnonymous);
+                    } catch (AsterixException e) {
+                        throw new MetadataException(e);
+                    }
                 }
                 case UNION: {
                     IACursor cursor = ((AOrderedList) derivedTypeRecord
@@ -182,7 +186,7 @@
         IAType type = AsterixBuiltinTypeMap.getBuiltinTypes().get(typeName);
         if (type == null) {
             try {
-                return metadataNode.getDatatype(txnId, dataverseName, typeName).getDatatype();
+                return metadataNode.getDatatype(jobId, dataverseName, typeName).getDatatype();
             } catch (RemoteException e) {
                 throw new MetadataException(e);
             }
@@ -191,7 +195,7 @@
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(Datatype dataType) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(Datatype dataType) throws IOException, MetadataException {
         // write the key in the first two fields of the tuple
         tupleBuilder.reset();
         aString.setValue(dataType.getDataverseName());
@@ -220,7 +224,11 @@
         ATypeTag tag = dataType.getDatatype().getTypeTag();
         if (isDerivedType(tag)) {
             fieldValue.reset();
-            writeDerivedTypeRecord(dataType, fieldValue.getDataOutput());
+            try {
+                writeDerivedTypeRecord(dataType, fieldValue.getDataOutput());
+            } catch (AsterixException e) {
+                throw new MetadataException(e);
+            }
             recordBuilder.addField(MetadataRecordTypes.DATATYPE_ARECORD_DERIVED_FIELD_INDEX, fieldValue);
         }
 
@@ -231,14 +239,18 @@
         recordBuilder.addField(MetadataRecordTypes.DATATYPE_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
 
         // write record
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
 
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
         return tuple;
     }
 
-    public void writeDerivedTypeRecord(Datatype type, DataOutput out) throws IOException {
+    private void writeDerivedTypeRecord(Datatype type, DataOutput out) throws IOException, AsterixException {
         DerivedTypeTag tag;
         IARecordBuilder derivedRecordBuilder = new RecordBuilder();
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
@@ -322,7 +334,7 @@
 
     private void writeUnionType(Datatype instance, DataOutput dataOutput) throws HyracksDataException {
         List<IAType> unionList = ((AUnionType) instance.getDatatype()).getUnionList();
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         listBuilder.reset(new AOrderedListType(BuiltinType.ASTRING, null));
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         String typeName = null;
@@ -350,7 +362,7 @@
         listBuilder.write(dataOutput, true);
     }
 
-    public void writeRecordType(Datatype instance, DataOutput out) throws IOException {
+    private void writeRecordType(Datatype instance, DataOutput out) throws IOException, AsterixException {
 
         ArrayBackedValueStorage fieldValue = new ArrayBackedValueStorage();
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
@@ -358,7 +370,7 @@
         IARecordBuilder fieldRecordBuilder = new RecordBuilder();
 
         ARecordType recType = (ARecordType) instance.getDatatype();
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         listBuilder.reset(new AOrderedListType(MetadataRecordTypes.FIELD_RECORDTYPE, null));
         String fieldTypeName = null;
         for (int i = 0; i < recType.getFieldNames().length; i++) {
@@ -415,25 +427,16 @@
     private String handleNestedDerivedType(String typeName, String suggestedTypeName, IAType nestedType,
             Datatype topLevelType) throws Exception {
         MetadataNode mn = MetadataNode.INSTANCE;
-        if (typeName == null) {
-            typeName = suggestedTypeName;
-            metadataNode.addDatatype(txnId, new Datatype(topLevelType.getDataverseName(), typeName, nestedType, true));
-            try {
-                mn.insertIntoDatatypeSecondaryIndex(txnId, topLevelType.getDataverseName(), typeName,
-                        topLevelType.getDatatypeName());
-            } catch (BTreeDuplicateKeyException e) {
-                // The key may have been inserted by a previous DDL statement or
-                // by a previous nested type.
-            }
-            return typeName;
-        }
-        Datatype dt = mn.getDatatype(txnId, topLevelType.getDataverseName(), typeName);
-        if (dt == null) {
-            throw new AlgebricksException("There is no datatype with this name " + typeName + ".");
-        }
         try {
-            mn.insertIntoDatatypeSecondaryIndex(txnId, topLevelType.getDataverseName(), typeName,
+            if (typeName == null) {
+                typeName = suggestedTypeName;
+                metadataNode.addDatatype(jobId, new Datatype(topLevelType.getDataverseName(), typeName, nestedType,
+                        true));
+
+            }
+            mn.insertIntoDatatypeSecondaryIndex(jobId, topLevelType.getDataverseName(), typeName,
                     topLevelType.getDatatypeName());
+
         } catch (BTreeDuplicateKeyException e) {
             // The key may have been inserted by a previous DDL statement or by
             // a previous nested type.
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DataverseTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DataverseTupleTranslator.java
index 271bf90..23e42d6 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DataverseTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DataverseTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,12 +21,17 @@
 import java.io.IOException;
 import java.util.Calendar;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ARecord;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -40,12 +45,18 @@
     // Payload field containing serialized Dataverse.
     public static final int DATAVERSE_PAYLOAD_TUPLE_FIELD_INDEX = 1;
 
+    private AMutableInt32 aInt32;
+    protected ISerializerDeserializer<AInt32> aInt32Serde;
+
     @SuppressWarnings("unchecked")
     private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(MetadataRecordTypes.DATAVERSE_RECORDTYPE);
 
+    @SuppressWarnings("unchecked")
     public DataverseTupleTranslator(boolean getTuple) {
         super(getTuple, MetadataPrimaryIndexes.DATAVERSE_DATASET.getFieldCount());
+        aInt32 = new AMutableInt32(-1);
+        aInt32Serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
     }
 
     @Override
@@ -57,11 +68,12 @@
         DataInput in = new DataInputStream(stream);
         ARecord dataverseRecord = recordSerDes.deserialize(in);
         return new Dataverse(((AString) dataverseRecord.getValueByPos(0)).getStringValue(),
-                ((AString) dataverseRecord.getValueByPos(1)).getStringValue());
+                ((AString) dataverseRecord.getValueByPos(1)).getStringValue(),
+                ((AInt32) dataverseRecord.getValueByPos(3)).getIntegerValue());
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(Dataverse instance) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(Dataverse instance) throws IOException, MetadataException {
         // write the key in the first field of the tuple
         tupleBuilder.reset();
         aString.setValue(instance.getDataverseName());
@@ -88,7 +100,17 @@
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.DATAVERSE_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
 
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        // write field 3
+        fieldValue.reset();
+        aInt32.setValue(instance.getPendingOp());
+        aInt32Serde.serialize(aInt32, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.DATAVERSE_ARECORD_PENDINGOP_FIELD_INDEX, fieldValue);
+
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
 
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
index 15d880c..c34bc72 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,9 +22,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.Function;
@@ -34,154 +35,159 @@
 import edu.uci.ics.asterix.om.base.IACursor;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
 /**
  * Translates a Function metadata entity to an ITupleReference and vice versa.
- * 
  */
 public class FunctionTupleTranslator extends AbstractTupleTranslator<Function> {
-	// Field indexes of serialized Function in a tuple.
-	// First key field.
-	public static final int FUNCTION_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
-	// Second key field.
-	public static final int FUNCTION_FUNCTIONNAME_TUPLE_FIELD_INDEX = 1;
-	// Thirdy key field.
-	public static final int FUNCTION_FUNCTIONARITY_TUPLE_FIELD_INDEX = 2;
+    // Field indexes of serialized Function in a tuple.
+    // First key field.
+    public static final int FUNCTION_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
+    // Second key field.
+    public static final int FUNCTION_FUNCTIONNAME_TUPLE_FIELD_INDEX = 1;
+    // Third key field.
+    public static final int FUNCTION_FUNCTIONARITY_TUPLE_FIELD_INDEX = 2;
 
-	// Payload field containing serialized Function.
-	public static final int FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX = 3;
+    // Payload field containing serialized Function.
+    public static final int FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX = 3;
 
-	@SuppressWarnings("unchecked")
-	private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(MetadataRecordTypes.FUNCTION_RECORDTYPE);
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.FUNCTION_RECORDTYPE);
 
-	public FunctionTupleTranslator(boolean getTuple) {
-		super(getTuple, MetadataPrimaryIndexes.FUNCTION_DATASET.getFieldCount());
-	}
+    public FunctionTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.FUNCTION_DATASET.getFieldCount());
+    }
 
-	@Override
-	public Function getMetadataEntytiFromTuple(ITupleReference frameTuple)
-			throws IOException {
-		byte[] serRecord = frameTuple
-				.getFieldData(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		int recordStartOffset = frameTuple
-				.getFieldStart(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		int recordLength = frameTuple
-				.getFieldLength(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		ByteArrayInputStream stream = new ByteArrayInputStream(serRecord,
-				recordStartOffset, recordLength);
-		DataInput in = new DataInputStream(stream);
-		ARecord functionRecord = (ARecord) recordSerDes.deserialize(in);
-		return createFunctionFromARecord(functionRecord);
-	}
+    @Override
+    public Function getMetadataEntytiFromTuple(ITupleReference frameTuple) throws IOException {
+        byte[] serRecord = frameTuple.getFieldData(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = frameTuple.getFieldStart(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = frameTuple.getFieldLength(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord functionRecord = (ARecord) recordSerDes.deserialize(in);
+        return createFunctionFromARecord(functionRecord);
+    }
 
-	private Function createFunctionFromARecord(ARecord functionRecord) {
-		String dataverseName = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX))
-				.getStringValue();
-		String functionName = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX))
-				.getStringValue();
-		String arity = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX))
-				.getStringValue();
+    private Function createFunctionFromARecord(ARecord functionRecord) {
+        String dataverseName = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
+        String functionName = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX)).getStringValue();
+        String arity = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX)).getStringValue();
 
-		IACursor cursor = ((AOrderedList) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX))
-				.getCursor();
-		List<String> params = new ArrayList<String>();
-		while (cursor.next()) {
-			params.add(((AString) cursor.get()).getStringValue());
-		}
+        IACursor cursor = ((AOrderedList) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX)).getCursor();
+        List<String> params = new ArrayList<String>();
+        while (cursor.next()) {
+            params.add(((AString) cursor.get()).getStringValue());
+        }
 
-		String functionBody = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX))
-				.getStringValue();
+        String returnType = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX)).getStringValue();
 
-		return new Function(dataverseName, functionName,
-				Integer.parseInt(arity), params, functionBody);
+        String definition = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX)).getStringValue();
 
-	}
+        String language = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX)).getStringValue();
 
-	@Override
-	public ITupleReference getTupleFromMetadataEntity(Function function)
-			throws IOException {
-		// write the key in the first 3 fields of the tuple
-		tupleBuilder.reset();
-		aString.setValue(function.getDataverseName());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
-		aString.setValue(function.getFunctionName());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
-		aString.setValue("" + function.getFunctionArity());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
+        String functionKind = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX)).getStringValue();
+        return new Function(dataverseName, functionName, Integer.parseInt(arity), params, returnType, definition,
+                language, functionKind);
 
-		// write the pay-load in the fourth field of the tuple
+    }
 
-		recordBuilder.reset(MetadataRecordTypes.FUNCTION_RECORDTYPE);
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(Function function) throws IOException, MetadataException {
+        // write the key in the first 2 fields of the tuple
+        tupleBuilder.reset();
+        aString.setValue(function.getDataverseName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(function.getName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(function.getArity() + "");
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
 
-		// write field 0
-		fieldValue.reset();
-		aString.setValue(function.getDataverseName());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX,
-				fieldValue);
+        // write the pay-load in the fourth field of the tuple
 
-		// write field 1
-		fieldValue.reset();
-		aString.setValue(function.getFunctionName());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX,
-				fieldValue);
+        recordBuilder.reset(MetadataRecordTypes.FUNCTION_RECORDTYPE);
 
-		// write field 2
-		fieldValue.reset();
-		aString.setValue("" + function.getFunctionArity());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX,
-				fieldValue);
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(function.getDataverseName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX, fieldValue);
 
-		// write field 3
-		IAOrderedListBuilder listBuilder = new OrderedListBuilder();
-		ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
-		listBuilder
-				.reset((AOrderedListType) MetadataRecordTypes.FUNCTION_RECORDTYPE
-						.getFieldTypes()[MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX]);
-		for (String param : function.getParams()) {
-			itemValue.reset();
-			aString.setValue(param);
-			stringSerde.serialize(aString, itemValue.getDataOutput());
-			listBuilder.addItem(itemValue);
-		}
-		fieldValue.reset();
-		listBuilder.write(fieldValue.getDataOutput(), true);
-		recordBuilder
-				.addField(
-						MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX,
-						fieldValue);
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(function.getName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX, fieldValue);
 
-		// write field 4
-		fieldValue.reset();
-		aString.setValue(function.getFunctionBody());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX,
-				fieldValue);
+        // write field 2
+        fieldValue.reset();
+        aString.setValue(function.getArity() + "");
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX, fieldValue);
 
-		// write record
-		recordBuilder.write(tupleBuilder.getDataOutput(), true);
-		tupleBuilder.addFieldEndOffset();
+        // write field 3
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
+        ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
+        listBuilder
+                .reset((AOrderedListType) MetadataRecordTypes.FUNCTION_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX]);
+        for (String param : function.getParams()) {
+            itemValue.reset();
+            aString.setValue(param);
+            stringSerde.serialize(aString, itemValue.getDataOutput());
+            listBuilder.addItem(itemValue);
+        }
+        fieldValue.reset();
+        listBuilder.write(fieldValue.getDataOutput(), true);
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX, fieldValue);
 
-		tuple.reset(tupleBuilder.getFieldEndOffsets(),
-				tupleBuilder.getByteArray());
-		return tuple;
-	}
+        // write field 4
+        fieldValue.reset();
+        aString.setValue(function.getReturnType());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX, fieldValue);
+
+        // write field 5
+        fieldValue.reset();
+        aString.setValue(function.getFunctionBody());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX, fieldValue);
+
+        // write field 6
+        fieldValue.reset();
+        aString.setValue(function.getLanguage());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX, fieldValue);
+
+        // write field 7
+        fieldValue.reset();
+        aString.setValue(function.getKind());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX, fieldValue);
+
+        // write record
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
+        tupleBuilder.addFieldEndOffset();
+
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
 
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/IndexTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/IndexTupleTranslator.java
index 34d4162..e6f0462 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/IndexTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/IndexTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,21 +23,24 @@
 import java.util.Calendar;
 import java.util.List;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AOrderedList;
 import edu.uci.ics.asterix.om.base.ARecord;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.base.IACursor;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
 /**
@@ -53,11 +56,17 @@
     public static final int INDEX_INDEXNAME_TUPLE_FIELD_INDEX = 2;
     // Payload field containing serialized Index.
     public static final int INDEX_PAYLOAD_TUPLE_FIELD_INDEX = 3;
+    // Field name of open field.
+    public static final String GRAM_LENGTH_FIELD_NAME = "GramLength";
 
-    private IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+    private OrderedListBuilder listBuilder = new OrderedListBuilder();
+    private ArrayBackedValueStorage nameValue = new ArrayBackedValueStorage();
     private ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
     private List<String> searchKey;
     @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT32);
+    @SuppressWarnings("unchecked")
     private ISerializerDeserializer<ARecord> recordSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(MetadataRecordTypes.INDEX_RECORDTYPE);
 
@@ -89,11 +98,19 @@
         }
         Boolean isPrimaryIndex = ((ABoolean) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_ISPRIMARY_FIELD_INDEX))
                 .getBoolean();
-        return new Index(dvName, dsName, indexName, indexStructure, searchKey, isPrimaryIndex);
+        int pendingOp = ((AInt32) rec.getValueByPos(MetadataRecordTypes.INDEX_ARECORD_PENDINGOP_FIELD_INDEX))
+                .getIntegerValue();
+        // Check if there is a gram length as well.
+        int gramLength = -1;
+        int gramLenPos = rec.getType().findFieldPosition(GRAM_LENGTH_FIELD_NAME);
+        if (gramLenPos >= 0) {
+            gramLength = ((AInt32) rec.getValueByPos(gramLenPos)).getIntegerValue();
+        }
+        return new Index(dvName, dsName, indexName, indexStructure, searchKey, gramLength, isPrimaryIndex, pendingOp);
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(Index instance) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(Index instance) throws IOException, MetadataException {
         // write the key in the first 3 fields of the tuple
         tupleBuilder.reset();
         aString.setValue(instance.getDataverseName());
@@ -161,8 +178,31 @@
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.INDEX_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
 
+        // write field 7
+        fieldValue.reset();
+        intSerde.serialize(new AInt32(instance.getPendingOp()), fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.INDEX_ARECORD_PENDINGOP_FIELD_INDEX, fieldValue);
+
+        // write optional field 8        
+        if (instance.getGramLength() > 0) {
+            fieldValue.reset();
+            nameValue.reset();
+            aString.setValue(GRAM_LENGTH_FIELD_NAME);
+            stringSerde.serialize(aString, nameValue.getDataOutput());
+            intSerde.serialize(new AInt32(instance.getGramLength()), fieldValue.getDataOutput());
+            try {
+                recordBuilder.addField(nameValue, fieldValue);
+            } catch (AsterixException e) {
+                throw new MetadataException(e);
+            }
+        }
+
         // write record
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
 
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeGroupTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeGroupTupleTranslator.java
index 2efec8e..ce72322 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeGroupTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeGroupTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,9 +23,10 @@
 import java.util.Calendar;
 import java.util.List;
 
-import edu.uci.ics.asterix.builders.IAUnorderedListBuilder;
 import edu.uci.ics.asterix.builders.UnorderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
@@ -35,7 +36,7 @@
 import edu.uci.ics.asterix.om.base.IACursor;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
 /**
@@ -49,7 +50,7 @@
     // Payload field containing serialized NodeGroup.
     public static final int NODEGROUP_PAYLOAD_TUPLE_FIELD_INDEX = 1;
 
-    private IAUnorderedListBuilder listBuilder = new UnorderedListBuilder();
+    private UnorderedListBuilder listBuilder = new UnorderedListBuilder();
     private ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
     private List<String> nodeNames;
     @SuppressWarnings("unchecked")
@@ -80,7 +81,7 @@
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(NodeGroup instance) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(NodeGroup instance) throws IOException, MetadataException {
         // write the key in the first field of the tuple
         tupleBuilder.reset();
         aString.setValue(instance.getNodeGroupName());
@@ -115,7 +116,11 @@
         stringSerde.serialize(aString, fieldValue.getDataOutput());
         recordBuilder.addField(MetadataRecordTypes.NODEGROUP_ARECORD_TIMESTAMP_FIELD_INDEX, fieldValue);
 
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
 
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeTupleTranslator.java
index ba7d9ec..9e276cc 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/NodeTupleTranslator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,14 +17,16 @@
 
 import java.io.IOException;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataPrimaryIndexes;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataRecordTypes;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -80,7 +82,7 @@
     }
 
     @Override
-    public ITupleReference getTupleFromMetadataEntity(Node instance) throws IOException {
+    public ITupleReference getTupleFromMetadataEntity(Node instance) throws IOException, MetadataException {
         // write the key in the first field of the tuple
         tupleBuilder.reset();
         aString.setValue(instance.getNodeName());
@@ -121,7 +123,11 @@
         // listBuilder.write(fieldValue.getDataOutput());
         // recordBuilder.addField(3, fieldValue);
 
-        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        try {
+            recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        } catch (AsterixException e) {
+            throw new MetadataException(e);
+        }
         tupleBuilder.addFieldEndOffset();
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
         return tuple;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
index 9440823..60f2e6d 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
@@ -1,8 +1,7 @@
 package edu.uci.ics.asterix.metadata.functions;
 
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
@@ -10,13 +9,14 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class MetadataBuiltinFunctions {
 
@@ -51,14 +51,21 @@
                     return BuiltinType.ANY;
                 }
                 AsterixConstantValue acv = (AsterixConstantValue) ((ConstantExpression) a1).getValue();
-                String datasetName = ((AString) acv.getObject()).getStringValue();
-                AqlCompiledMetadataDeclarations metadata = ((AqlMetadataProvider) mp).getMetadataDeclarations();
-                AqlCompiledDatasetDecl acdd = metadata.findDataset(datasetName);
-                if (acdd == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                String datasetArg = ((AString) acv.getObject()).getStringValue();
+                AqlMetadataProvider metadata = ((AqlMetadataProvider) mp);
+                Pair<String, String> datasetInfo = getDatasetInfo(metadata, datasetArg);
+                String dataverseName = datasetInfo.first;
+                String datasetName = datasetInfo.second;
+                if (dataverseName == null) {
+                    throw new AlgebricksException("Unspecified dataverse!");
                 }
-                String tn = acdd.getItemTypeName();
-                IAType t2 = metadata.findType(tn);
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
+                }
+                String tn = dataset.getItemTypeName();
+                IAType t2 = metadata.findType(dataverseName, tn);
                 if (t2 == null) {
                     throw new AlgebricksException("No type for dataset " + datasetName);
                 }
@@ -87,14 +94,21 @@
                     return BuiltinType.ANY;
                 }
                 AsterixConstantValue acv = (AsterixConstantValue) ((ConstantExpression) a1).getValue();
-                String datasetName = ((AString) acv.getObject()).getStringValue();
-                AqlCompiledMetadataDeclarations metadata = ((AqlMetadataProvider) mp).getMetadataDeclarations();
-                AqlCompiledDatasetDecl acdd = metadata.findDataset(datasetName);
-                if (acdd == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                String datasetArg = ((AString) acv.getObject()).getStringValue();
+                AqlMetadataProvider metadata = ((AqlMetadataProvider) mp);
+                Pair<String, String> datasetInfo = getDatasetInfo(metadata, datasetArg);
+                String dataverseName = datasetInfo.first;
+                String datasetName = datasetInfo.second;
+                if (dataverseName == null) {
+                    throw new AlgebricksException("Unspecified dataverse!");
                 }
-                String tn = acdd.getItemTypeName();
-                IAType t2 = metadata.findType(tn);
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
+                }
+                String tn = dataset.getItemTypeName();
+                IAType t2 = metadata.findType(dataverseName, tn);
                 if (t2 == null) {
                     throw new AlgebricksException("No type for dataset " + datasetName);
                 }
@@ -102,4 +116,19 @@
             }
         });
     }
+
+    private static Pair<String, String> getDatasetInfo(AqlMetadataProvider metadata, String datasetArg) {
+        String[] datasetNameComponents = datasetArg.split("\\.");
+        String dataverseName;
+        String datasetName;
+        if (datasetNameComponents.length == 1) {
+            dataverseName = metadata.getDefaultDataverse() == null ? null : metadata.getDefaultDataverse()
+                    .getDataverseName();
+            datasetName = datasetNameComponents[0];
+        } else {
+            dataverseName = datasetNameComponents[0];
+            datasetName = datasetNameComponents[1];
+        }
+        return new Pair(dataverseName, datasetName);
+    }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/utils/DatasetUtils.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/utils/DatasetUtils.java
index 50ec18c..820f277 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/utils/DatasetUtils.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/utils/DatasetUtils.java
@@ -1,119 +1,124 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.metadata.utils;
 
+import java.io.IOException;
 import java.util.List;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledDatasetDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledIndexDecl;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledInternalDatasetDetails;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryComparatorFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryHashFunctionFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 
 public class DatasetUtils {
-    public static IBinaryComparatorFactory[] computeKeysBinaryComparatorFactories(
-            AqlCompiledDatasetDecl compiledDatasetDecl, IBinaryComparatorFactoryProvider comparatorFactoryProvider)
+    public static IBinaryComparatorFactory[] computeKeysBinaryComparatorFactories(Dataset dataset,
+            ARecordType itemType, IBinaryComparatorFactoryProvider comparatorFactoryProvider)
             throws AlgebricksException {
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL)
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
             throw new AlgebricksException("not implemented");
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions;
-        partitioningFunctions = getPartitioningFunctions(compiledDatasetDecl);
-        int numKeys = partitioningFunctions.size();
-        IBinaryComparatorFactory[] bcfs = new IBinaryComparatorFactory[numKeys];
-        for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
-            IAType keyType = evalFactoryAndType.third;
-            bcfs[i] = comparatorFactoryProvider.getBinaryComparatorFactory(keyType, OrderKind.ASC);
+        }
+        List<String> partitioningKeys = getPartitioningKeys(dataset);
+        IBinaryComparatorFactory[] bcfs = new IBinaryComparatorFactory[partitioningKeys.size()];
+        for (int i = 0; i < partitioningKeys.size(); i++) {
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+            bcfs[i] = comparatorFactoryProvider.getBinaryComparatorFactory(keyType, true);
         }
         return bcfs;
     }
 
-    public static IBinaryHashFunctionFactory[] computeKeysBinaryHashFunFactories(
-            AqlCompiledDatasetDecl compiledDatasetDecl, IBinaryHashFunctionFactoryProvider hashFunProvider)
-            throws AlgebricksException {
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL)
+    public static int[] createBloomFilterKeyFields(Dataset dataset) throws AlgebricksException {
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
             throw new AlgebricksException("not implemented");
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions;
-        partitioningFunctions = ((AqlCompiledInternalDatasetDetails) compiledDatasetDecl.getAqlCompiledDatasetDetails())
-                .getPartitioningFunctions();
-        int numKeys = partitioningFunctions.size();
-        IBinaryHashFunctionFactory[] bhffs = new IBinaryHashFunctionFactory[numKeys];
-        for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
-            IAType keyType = evalFactoryAndType.third;
+        }
+        List<String> partitioningKeys = getPartitioningKeys(dataset);
+        int[] bloomFilterKeyFields = new int[partitioningKeys.size()];
+        for (int i = 0; i < partitioningKeys.size(); ++i) {
+            bloomFilterKeyFields[i] = i;
+        }
+        return bloomFilterKeyFields;
+    }
+
+    public static IBinaryHashFunctionFactory[] computeKeysBinaryHashFunFactories(Dataset dataset, ARecordType itemType,
+            IBinaryHashFunctionFactoryProvider hashFunProvider) throws AlgebricksException {
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            throw new AlgebricksException("not implemented");
+        }
+        List<String> partitioningKeys = getPartitioningKeys(dataset);
+        IBinaryHashFunctionFactory[] bhffs = new IBinaryHashFunctionFactory[partitioningKeys.size()];
+        for (int i = 0; i < partitioningKeys.size(); i++) {
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
             bhffs[i] = hashFunProvider.getBinaryHashFunctionFactory(keyType);
         }
         return bhffs;
     }
 
-    public static ITypeTraits[] computeTupleTypeTraits(AqlCompiledDatasetDecl compiledDatasetDecl,
-            AqlCompiledMetadataDeclarations datasetDecls) throws AlgebricksException {
-        if (compiledDatasetDecl.getDatasetType() == DatasetType.EXTERNAL)
+    public static ITypeTraits[] computeTupleTypeTraits(Dataset dataset, ARecordType itemType)
+            throws AlgebricksException {
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
             throw new AlgebricksException("not implemented");
-        List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> partitioningFunctions;
-        partitioningFunctions = ((AqlCompiledInternalDatasetDetails) compiledDatasetDecl.getAqlCompiledDatasetDetails())
-                .getPartitioningFunctions();
-        int numKeys = partitioningFunctions.size();
+        }
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        int numKeys = partitioningKeys.size();
         ITypeTraits[] typeTraits = new ITypeTraits[numKeys + 1];
         for (int i = 0; i < numKeys; i++) {
-            Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> evalFactoryAndType = partitioningFunctions
-                    .get(i);
-            IAType keyType = evalFactoryAndType.third;
+            IAType keyType;
+            try {
+                keyType = itemType.getFieldType(partitioningKeys.get(i));
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
             typeTraits[i] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(keyType);
         }
-        IAType payloadType = datasetDecls.findType(compiledDatasetDecl.getItemTypeName());
-        typeTraits[numKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(payloadType);
+        typeTraits[numKeys] = AqlTypeTraitProvider.INSTANCE.getTypeTrait(itemType);
         return typeTraits;
     }
 
-    public static List<Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>> getPartitioningFunctions(
-            AqlCompiledDatasetDecl decl) {
-        return ((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails()).getPartitioningFunctions();
+    public static List<String> getPartitioningKeys(Dataset dataset) {
+        return ((InternalDatasetDetails) dataset.getDatasetDetails()).getPartitioningKey();
     }
 
-    public static String getNodegroupName(AqlCompiledDatasetDecl decl) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails())).getNodegroupName();
+    public static String getNodegroupName(Dataset dataset) {
+        return (((InternalDatasetDetails) dataset.getDatasetDetails())).getNodeGroupName();
     }
 
-    public static AqlCompiledIndexDecl getPrimaryIndex(AqlCompiledDatasetDecl decl) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails())).getPrimaryIndex();
-
+    public static int getPositionOfPartitioningKeyField(Dataset dataset, String fieldExpr) {
+        List<String> partitioningKeys = DatasetUtils.getPartitioningKeys(dataset);
+        for (int i = 0; i < partitioningKeys.size(); i++) {
+            if (partitioningKeys.get(i).equals(fieldExpr)) {
+                return i;
+            }
+        }
+        return -1;
     }
-
-    public static AqlCompiledIndexDecl findSecondaryIndexByName(AqlCompiledDatasetDecl decl, String indexName) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails())
-                .findSecondaryIndexByName(indexName));
-    }
-
-    public static List<AqlCompiledIndexDecl> findSecondaryIndexesByOneOfTheKeys(AqlCompiledDatasetDecl decl,
-            String fieldExpr) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails()))
-                .findSecondaryIndexesByOneOfTheKeys(fieldExpr);
-    }
-
-    public static int getPositionOfPartitioningKeyField(AqlCompiledDatasetDecl decl, String fieldExpr) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails()))
-                .getPositionOfPartitioningKeyField(fieldExpr);
-    }
-
-    public static List<String> getPartitioningExpressions(AqlCompiledDatasetDecl decl) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails())).getPartitioningExprs();
-    }
-
-    public static List<AqlCompiledIndexDecl> getSecondaryIndexes(AqlCompiledDatasetDecl decl) {
-        return (((AqlCompiledInternalDatasetDetails) decl.getAqlCompiledDatasetDetails())).getSecondaryIndexes();
-    }
-
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
index a6bbb8f..e554643 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
@@ -23,6 +23,7 @@
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -32,7 +33,7 @@
  */
 public class DatasetNameValueExtractor implements IValueExtractor<String> {
     @Override
-    public String getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException {
+    public String getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException {
         byte[] serRecord = tuple.getFieldData(2);
         int recordStartOffset = tuple.getFieldStart(2);
         int recordLength = tuple.getFieldLength(2);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
index 16a501d..2e4dbe4 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
@@ -25,6 +25,7 @@
 import edu.uci.ics.asterix.metadata.MetadataNode;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -42,7 +43,7 @@
     }
 
     @Override
-    public String getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException {
+    public String getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException {
         byte[] serRecord = tuple.getFieldData(2);
         int recordStartOffset = tuple.getFieldStart(2);
         int recordLength = tuple.getFieldLength(2);
@@ -50,10 +51,10 @@
         DataInput in = new DataInputStream(stream);
         String typeName = ((AString) AObjectSerializerDeserializer.INSTANCE.deserialize(in)).getStringValue();
         try {
-            if (metadataNode.getDatatype(txnId, dataverseName, typeName).getIsAnonymous()) {
+            if (metadataNode.getDatatype(jobId, dataverseName, typeName).getIsAnonymous()) {
                 // Get index 0 because it is anonymous type, and it is used in
                 // only one non-anonymous type.
-                typeName = metadataNode.getDatatypeNamesUsingThisDatatype(txnId, dataverseName, typeName).get(0);
+                typeName = metadataNode.getDatatypeNamesUsingThisDatatype(jobId, dataverseName, typeName).get(0);
             }
         } catch (RemoteException e) {
             throw new MetadataException(e);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
index 34f9b29..7ae334e 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
@@ -20,6 +20,7 @@
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntityTupleTranslator;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -34,7 +35,7 @@
     }
 
     @Override
-    public T getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException, IOException {
+    public T getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException, IOException {
         return tupleReaderWriter.getMetadataEntytiFromTuple(tuple);
     }
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
index 74dabad..d4109cd 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
@@ -23,6 +23,7 @@
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
@@ -40,7 +41,7 @@
     }
 
     @Override
-    public String getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException {
+    public String getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException {
         byte[] serRecord = tuple.getFieldData(2);
         int recordStartOffset = tuple.getFieldStart(2);
         int recordLength = tuple.getFieldLength(2);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
index da608e5..03bc963 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
@@ -20,6 +20,7 @@
 
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
@@ -44,7 +45,7 @@
     }
 
     @Override
-    public ITupleReference getValue(long txnId, ITupleReference tuple) throws MetadataException, HyracksDataException,
+    public ITupleReference getValue(JobId jobId, ITupleReference tuple) throws MetadataException, HyracksDataException,
             IOException {
         int numBytes = tupleWriter.bytesRequired(tuple);
         tupleBytes = new byte[numBytes];
diff --git a/asterix-om/pom.xml b/asterix-om/pom.xml
index a3626b7..f400c20 100644
--- a/asterix-om/pom.xml
+++ b/asterix-om/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-om</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 		</plugins>
@@ -32,39 +32,15 @@
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-invertedindex</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-hyracks-glue</artifactId>
-			<version>0.0.4-SNAPSHOT</version>
-			<scope>compile</scope>
+        <dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>algebricks-compiler</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-algebricks-compiler</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-rtree</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
 		</dependency>
 	</dependencies>
 </project>
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/AbstractListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/AbstractListBuilder.java
new file mode 100644
index 0000000..6fa2d3e
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/AbstractListBuilder.java
@@ -0,0 +1,110 @@
+package edu.uci.ics.asterix.builders;
+
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.SerializerDeserializerUtil;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
+import edu.uci.ics.hyracks.data.std.util.GrowableArray;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IntArrayList;
+
+public abstract class AbstractListBuilder implements IAsterixListBuilder {
+
+    protected static final byte serNullTypeTag = ATypeTag.NULL.serialize();
+
+    protected final GrowableArray outputStorage;
+    protected final DataOutputStream outputStream;
+    protected final IntArrayList offsets;
+    protected int metadataInfoSize;
+    protected byte[] offsetArray;
+    protected int offsetPosition;
+    protected int headerSize;
+    protected ATypeTag itemTypeTag;
+    protected final ATypeTag listType;
+
+    protected boolean fixedSize = false;
+    protected int numberOfItems;
+
+    public AbstractListBuilder(ATypeTag listType) {
+        this.outputStorage = new GrowableArray();
+        this.outputStream = (DataOutputStream) outputStorage.getDataOutput();
+        this.offsets = new IntArrayList(10, 10);
+        this.metadataInfoSize = 0;
+        this.offsetArray = null;
+        this.offsetPosition = 0;
+        this.listType = listType;
+    }
+
+    @Override
+    public void reset(AbstractCollectionType listType) {
+        this.outputStorage.reset();
+        this.offsetArray = null;
+        this.offsets.clear();
+        this.offsetPosition = 0;
+        this.numberOfItems = 0;
+        if (listType == null || listType.getItemType() == null) {
+            this.itemTypeTag = ATypeTag.ANY;
+            fixedSize = false;
+        } else {
+            this.itemTypeTag = listType.getItemType().getTypeTag();
+            fixedSize = NonTaggedFormatUtil.isFixedSizedCollection(listType.getItemType());
+        }
+        headerSize = 2;
+        metadataInfoSize = 8;
+        // 8 = 4 (# of items) + 4 (the size of the list)
+    }
+
+    @Override
+    public void addItem(IValueReference item) throws HyracksDataException {
+        try {
+            if (!fixedSize)
+                this.offsets.add((short) outputStorage.getLength());
+            if (itemTypeTag == ATypeTag.ANY
+                    || (itemTypeTag == ATypeTag.NULL && item.getByteArray()[0] == serNullTypeTag)) {
+                this.numberOfItems++;
+                this.outputStream.write(item.getByteArray(), item.getStartOffset(), item.getLength());
+            } else if (item.getByteArray()[0] != serNullTypeTag) {
+                this.numberOfItems++;
+                this.outputStream.write(item.getByteArray(), item.getStartOffset() + 1, item.getLength() - 1);
+            }
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException {
+        try {
+            if (!fixedSize)
+                metadataInfoSize += offsets.size() * 4;
+            if (offsetArray == null || offsetArray.length < metadataInfoSize)
+                offsetArray = new byte[metadataInfoSize];
+
+            SerializerDeserializerUtil.writeIntToByteArray(offsetArray,
+                    headerSize + metadataInfoSize + outputStorage.getLength(), offsetPosition);
+            SerializerDeserializerUtil.writeIntToByteArray(offsetArray, this.numberOfItems, offsetPosition + 4);
+
+            if (!fixedSize) {
+                offsetPosition += 8;
+                for (int i = 0; i < offsets.size(); i++) {
+                    SerializerDeserializerUtil.writeIntToByteArray(offsetArray, offsets.get(i) + metadataInfoSize
+                            + headerSize, offsetPosition);
+                    offsetPosition += 4;
+                }
+            }
+            if (writeTypeTag) {
+                out.writeByte(listType.serialize());
+            }
+            out.writeByte(itemTypeTag.serialize());
+            out.write(offsetArray, 0, metadataInfoSize);
+            out.write(outputStorage.getByteArray(), 0, outputStorage.getLength());
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAOrderedListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAOrderedListBuilder.java
deleted file mode 100644
index 881c302..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAOrderedListBuilder.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package edu.uci.ics.asterix.builders;
-
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.om.types.AOrderedListType;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
-
-public interface IAOrderedListBuilder {
-
-    /**
-     * @param orderedlistType
-     *            - the type of the list.
-     */
-    public void reset(AOrderedListType orderedlistType) throws HyracksDataException;
-
-    /**
-     * @param item
-     *            - the item to be added to the list.
-     */
-    public void addItem(IValueReference item) throws HyracksDataException;
-
-    /**
-     * @param out
-     *            - Stream to write data to.
-     */
-    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException;
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IARecordBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IARecordBuilder.java
index 18699f1..7cdb9a9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IARecordBuilder.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IARecordBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,8 +18,9 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
 
 /**
  * A record builder helps to construct Asterix Records in a serialized format.
@@ -49,8 +50,10 @@
      *            The field name.
      * @param out
      *            The field value.
+     * @throws AsterixException
+     *             if the field name conflicts with a closed field name
      */
-    public void addField(IValueReference name, IValueReference value);
+    public void addField(IValueReference name, IValueReference value) throws AsterixException;
 
     /**
      * @param out
@@ -59,8 +62,10 @@
      *            Whether to write a typetag as part of the record's serialized
      *            representation.
      * @throws IOException
+     * @throws AsterixException
+     *             if any open field names conflict with each other
      */
-    public void write(DataOutput out, boolean writeTypeTag) throws IOException;
+    public void write(DataOutput out, boolean writeTypeTag) throws IOException, AsterixException;
 
     public int getFieldId(String fieldName);
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAUnorderedListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAUnorderedListBuilder.java
deleted file mode 100644
index f962dfb..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAUnorderedListBuilder.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package edu.uci.ics.asterix.builders;
-
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
-
-public interface IAUnorderedListBuilder {
-
-    /**
-     * @param unorderedlistType
-     *            - the type of the list.
-     */
-    public void reset(AUnorderedListType unorderedlistType) throws HyracksDataException;
-
-    /**
-     * @param item
-     *            - the item to be added to the list.
-     */
-    public void addItem(IValueReference item) throws HyracksDataException;
-
-    /**
-     * @param out
-     *            - Stream to write data to.
-     */
-    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException;
-
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAsterixListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAsterixListBuilder.java
new file mode 100644
index 0000000..7bab046
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/IAsterixListBuilder.java
@@ -0,0 +1,29 @@
+package edu.uci.ics.asterix.builders;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
+
+public interface IAsterixListBuilder {
+    /**
+     * @param listType
+     *            Type of the list: AUnorderedListType or AOrderedListType.
+     */
+    public void reset(AbstractCollectionType listType) throws HyracksDataException;
+
+    /**
+     * @param item
+     *            Item to be added to the list.
+     */
+    public void addItem(IValueReference item) throws HyracksDataException;
+
+    /**
+     * @param out
+     *            Stream to serialize the list into.
+     * @param writeTypeTag
+     *            Whether to write the list's type tag before the list data.
+     */
+    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException;
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/OrderedListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/OrderedListBuilder.java
index dcb0b87..caad260 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/OrderedListBuilder.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/OrderedListBuilder.java
@@ -1,100 +1,21 @@
 package edu.uci.ics.asterix.builders;
 
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutput;
 import java.io.IOException;
-import java.util.ArrayList;
 
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.SerializerDeserializerUtil;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IToken;
 
-public class OrderedListBuilder implements IAOrderedListBuilder {
-
-    private ByteArrayOutputStream outputStream;
-    private ArrayList<Short> offsets;
-    private int metadataInfoSize;
-    private byte[] offsetArray;
-    private int offsetPosition;
-    private int headerSize;
-    private ATypeTag itemTypeTag;
-    private byte serNullTypeTag = ATypeTag.NULL.serialize();
-    private final static byte ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
-
-    private boolean fixedSize = false;
-    private int numberOfItems;
+public class OrderedListBuilder extends AbstractListBuilder {
 
     public OrderedListBuilder() {
-        this.outputStream = new ByteArrayOutputStream();
-        this.offsets = new ArrayList<Short>();
-        this.metadataInfoSize = 0;
-        this.offsetArray = null;
-        this.offsetPosition = 0;
+        super(ATypeTag.ORDEREDLIST);
     }
 
-    @Override
-    public void reset(AOrderedListType orderedlistType) throws HyracksDataException {
-        this.outputStream.reset();
-        this.offsetArray = null;
-        this.offsets.clear();
-        this.offsetPosition = 0;
-        this.numberOfItems = 0;
-        if (orderedlistType == null || orderedlistType.getItemType() == null) {
-            this.itemTypeTag = ATypeTag.ANY;
-            fixedSize = false;
-        } else {
-            this.itemTypeTag = orderedlistType.getItemType().getTypeTag();
-            fixedSize = NonTaggedFormatUtil.isFixedSizedCollection(orderedlistType.getItemType());
+    public void addItem(IToken token) throws IOException {
+        if (!fixedSize) {
+            offsets.add((short) outputStorage.getLength());
         }
-        headerSize = 2;
-        metadataInfoSize = 8;
-        // 8 = 4 (# of items) + 4 (the size of the list)
-    }
-
-    @Override
-    public void addItem(IValueReference item) throws HyracksDataException {
-        if (!fixedSize)
-            this.offsets.add((short) outputStream.size());
-        if (itemTypeTag == ATypeTag.ANY) {
-            this.numberOfItems++;
-            this.outputStream.write(item.getBytes(), item.getStartIndex(), item.getLength());
-        } else if (item.getBytes()[0] != serNullTypeTag) {
-            this.numberOfItems++;
-            this.outputStream.write(item.getBytes(), item.getStartIndex() + 1, item.getLength() - 1);
-        }
-    }
-
-    @Override
-    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException {
-        try {
-            if (!fixedSize)
-                metadataInfoSize += offsets.size() * 4;
-            if (offsetArray == null || offsetArray.length < metadataInfoSize)
-                offsetArray = new byte[metadataInfoSize];
-
-            SerializerDeserializerUtil.writeIntToByteArray(offsetArray,
-                    headerSize + metadataInfoSize + outputStream.size(), offsetPosition);
-            SerializerDeserializerUtil.writeIntToByteArray(offsetArray, this.numberOfItems, offsetPosition + 4);
-
-            if (!fixedSize) {
-                offsetPosition += 8;
-                for (int i = 0; i < offsets.size(); i++) {
-                    SerializerDeserializerUtil.writeIntToByteArray(offsetArray, offsets.get(i) + metadataInfoSize
-                            + headerSize, offsetPosition);
-                    offsetPosition += 4;
-                }
-            }
-            if (writeTypeTag) {
-                out.writeByte(ORDEREDLIST_TYPE_TAG);
-            }
-            out.writeByte(itemTypeTag.serialize());
-            out.write(offsetArray, 0, metadataInfoSize);
-            out.write(outputStream.toByteArray(), 0, outputStream.size());
-        } catch (IOException e) {
-            throw new HyracksDataException(e);
-        }
+        numberOfItems++;
+        token.serializeToken(outputStorage);
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/RecordBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/RecordBuilder.java
index fb8d2e4..f5d07ae 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/RecordBuilder.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/RecordBuilder.java
@@ -1,40 +1,46 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.builders;
 
+import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
 import java.io.DataOutput;
 import java.io.IOException;
 import java.util.Arrays;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.SerializerDeserializerUtil;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
 import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryHashFunctionFactory;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
 
 public class RecordBuilder implements IARecordBuilder {
-    private int openPartOffset;
+    private final static int DEFAULT_NUM_OPEN_FIELDS = 10;
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
 
-    private ARecordType recType;
-
-    private ByteArrayOutputStream closedPartOutputStream;
-    private int[] closedPartOffsets;
-    private int numberOfClosedFields;
-    private byte[] nullBitMap;
-    private int nullBitMapSize;
-
-    private ByteArrayOutputStream openPartOutputStream;
-    private long[] openPartOffsets;
-    private long[] tempOpenPartOffsets;
-
-    private int numberOfOpenFields;
-
-    private int fieldNameHashCode;
-    private final IBinaryHashFunction utf8HashFunction;
-
-    // for write()
     private int openPartOffsetArraySize;
     private byte[] openPartOffsetArray;
     private int offsetPosition;
@@ -42,25 +48,40 @@
     private boolean isOpen;
     private boolean isNullable;
     private int numberOfSchemaFields;
-    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
-    private final static byte RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
+
+    private int openPartOffset;
+    private ARecordType recType;
+
+    private final IBinaryHashFunction utf8HashFunction;
+    private final IBinaryComparator utf8Comparator;
+
+    private final ByteArrayOutputStream closedPartOutputStream;
+    private int[] closedPartOffsets;
+    private int numberOfClosedFields;
+    private byte[] nullBitMap;
+    private int nullBitMapSize;
+
+    private final ByteArrayAccessibleOutputStream openPartOutputStream;
+    private long[] openPartOffsets;
+    private int[] openFieldNameLengths;
+
+    private int numberOfOpenFields;
 
     public RecordBuilder() {
 
         this.closedPartOutputStream = new ByteArrayOutputStream();
         this.numberOfClosedFields = 0;
 
-        this.openPartOutputStream = new ByteArrayOutputStream();
-        this.openPartOffsets = new long[20];
-        this.tempOpenPartOffsets = new long[20];
-
+        this.openPartOutputStream = new ByteArrayAccessibleOutputStream();
+        this.openPartOffsets = new long[DEFAULT_NUM_OPEN_FIELDS];
+        this.openFieldNameLengths = new int[DEFAULT_NUM_OPEN_FIELDS];
         this.numberOfOpenFields = 0;
 
-        this.fieldNameHashCode = 0;
         this.utf8HashFunction = new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY)
                 .createBinaryHashFunction();
+        this.utf8Comparator = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY)
+                .createBinaryComparator();
 
-        // for write()
         this.openPartOffsetArray = null;
         this.openPartOffsetArraySize = 0;
         this.offsetPosition = 0;
@@ -127,31 +148,39 @@
         closedPartOffsets[id] = closedPartOutputStream.size();
         int len = value.getLength() - 1;
         // +1 because we do not store the value tag.
-        closedPartOutputStream.write(value.getBytes(), value.getStartIndex() + 1, len);
+        closedPartOutputStream.write(value.getByteArray(), value.getStartOffset() + 1, len);
         numberOfClosedFields++;
-        if (isNullable && value.getBytes()[0] != SER_NULL_TYPE_TAG) {
+        if (isNullable && value.getByteArray()[0] != SER_NULL_TYPE_TAG) {
             nullBitMap[id / 8] |= (byte) (1 << (7 - (id % 8)));
         }
     }
 
     @Override
-    public void addField(IValueReference name, IValueReference value) {
+    public void addField(IValueReference name, IValueReference value) throws AsterixException {
         if (numberOfOpenFields == openPartOffsets.length) {
-            tempOpenPartOffsets = openPartOffsets;
-            openPartOffsets = new long[numberOfOpenFields + 20];
-            for (int i = 0; i < tempOpenPartOffsets.length; i++)
-                openPartOffsets[i] = tempOpenPartOffsets[i];
+            openPartOffsets = Arrays.copyOf(openPartOffsets, openPartOffsets.length + DEFAULT_NUM_OPEN_FIELDS);
+            openFieldNameLengths = Arrays.copyOf(openFieldNameLengths, openFieldNameLengths.length
+                    + DEFAULT_NUM_OPEN_FIELDS);
         }
-        fieldNameHashCode = utf8HashFunction.hash(name.getBytes(), name.getStartIndex() + 1, name.getLength());
+        int fieldNameHashCode = utf8HashFunction.hash(name.getByteArray(), name.getStartOffset() + 1, name.getLength());
+        if (recType != null) {
+            int cFieldPos = recType.findFieldPosition(name.getByteArray(), name.getStartOffset() + 1,
+                    name.getLength() - 1);
+            if (cFieldPos >= 0) {
+                throw new AsterixException("Open field \"" + recType.getFieldNames()[cFieldPos]
+                        + "\" has the same field name as closed field at index " + cFieldPos);
+            }
+        }
         openPartOffsets[this.numberOfOpenFields] = fieldNameHashCode;
         openPartOffsets[this.numberOfOpenFields] = (openPartOffsets[numberOfOpenFields] << 32);
-        openPartOffsets[numberOfOpenFields++] += openPartOutputStream.size();
-        openPartOutputStream.write(name.getBytes(), name.getStartIndex() + 1, name.getLength() - 1);
-        openPartOutputStream.write(value.getBytes(), value.getStartIndex(), value.getLength());
+        openPartOffsets[numberOfOpenFields] += openPartOutputStream.size();
+        openFieldNameLengths[numberOfOpenFields++] = name.getLength() - 1;
+        openPartOutputStream.write(name.getByteArray(), name.getStartOffset() + 1, name.getLength() - 1);
+        openPartOutputStream.write(value.getByteArray(), value.getStartOffset(), value.getLength());
     }
 
     @Override
-    public void write(DataOutput out, boolean writeTypeTag) throws IOException {
+    public void write(DataOutput out, boolean writeTypeTag) throws IOException, AsterixException {
         int h = headerSize;
         int recordLength;
         // prepare the open part
@@ -163,13 +192,27 @@
                 openPartOffsetArray = new byte[openPartOffsetArraySize];
 
             Arrays.sort(this.openPartOffsets, 0, numberOfOpenFields);
+            if (numberOfOpenFields > 1) {
+                byte[] openBytes = openPartOutputStream.getByteArray();
+                for (int i = 1; i < numberOfOpenFields; i++) {
+                    if (utf8Comparator.compare(openBytes, (int) openPartOffsets[i - 1], openFieldNameLengths[i - 1],
+                            openBytes, (int) openPartOffsets[i], openFieldNameLengths[i]) == 0) {
+                        String field = UTF8StringSerializerDeserializer.INSTANCE
+                                .deserialize(new DataInputStream(new ByteArrayInputStream(openBytes,
+                                        (int) openPartOffsets[i], openFieldNameLengths[i])));
+                        throw new AsterixException("Open fields " + (i - 1) + " and " + i
+                                + " have the same field name \"" + field + "\"");
+                    }
+                }
+            }
 
             openPartOffset = h + numberOfSchemaFields * 4 + closedPartOutputStream.size();
+            int fieldNameHashCode;
             for (int i = 0; i < numberOfOpenFields; i++) {
                 fieldNameHashCode = (int) (openPartOffsets[i] >> 32);
                 SerializerDeserializerUtil.writeIntToByteArray(openPartOffsetArray, (int) fieldNameHashCode,
                         offsetPosition);
-                int fieldOffset = (int) ((openPartOffsets[i] << 64) >> 64);
+                int fieldOffset = (int) openPartOffsets[i];
                 SerializerDeserializerUtil.writeIntToByteArray(openPartOffsetArray, fieldOffset + openPartOffset + 4
                         + openPartOffsetArraySize, offsetPosition + 4);
                 offsetPosition += 8;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/UnorderedListBuilder.java b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/UnorderedListBuilder.java
index 2f74f97..d1c33a4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/builders/UnorderedListBuilder.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/builders/UnorderedListBuilder.java
@@ -1,103 +1,10 @@
 package edu.uci.ics.asterix.builders;
 
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.util.ArrayList;
-
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.SerializerDeserializerUtil;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IValueReference;
 
-public class UnorderedListBuilder implements IAUnorderedListBuilder {
-
-    /**
-     * 
-     */
-    private ByteArrayOutputStream outputStream;
-    private ArrayList<Short> offsets;
-    private int metadataInfoSize;
-    private byte[] offsetArray;
-    private int offsetPosition;
-    private int headerSize;
-    private ATypeTag itemTypeTag;
-    private byte serNullTypeTag = ATypeTag.NULL.serialize();
-    private final static byte UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
-
-    private boolean fixedSize = false;
-    private int numberOfItems;
+public class UnorderedListBuilder extends AbstractListBuilder {
 
     public UnorderedListBuilder() {
-        this.outputStream = new ByteArrayOutputStream();
-        this.offsets = new ArrayList<Short>();
-        this.metadataInfoSize = 0;
-        this.offsetArray = null;
-        this.offsetPosition = 0;
-    }
-
-    @Override
-    public void reset(AUnorderedListType unorderedlistType) throws HyracksDataException {
-        this.outputStream.reset();
-        this.offsetArray = null;
-        this.offsets.clear();
-        this.offsetPosition = 0;
-        this.numberOfItems = 0;
-        if (unorderedlistType == null || unorderedlistType.getItemType() == null) {
-            this.itemTypeTag = ATypeTag.ANY;
-            fixedSize = false;
-        } else {
-            this.itemTypeTag = unorderedlistType.getItemType().getTypeTag();
-            fixedSize = NonTaggedFormatUtil.isFixedSizedCollection(unorderedlistType.getItemType());
-        }
-        headerSize = 2;
-        metadataInfoSize = 8;
-        // 8 = 4 (# of items) + 4 (the size of the list)
-    }
-
-    @Override
-    public void addItem(IValueReference item) throws HyracksDataException {
-        if (!fixedSize)
-            this.offsets.add((short) outputStream.size());
-        if (itemTypeTag == ATypeTag.ANY) {
-            this.numberOfItems++;
-            this.outputStream.write(item.getBytes(), item.getStartIndex(), item.getLength());
-        } else if (item.getBytes()[0] != serNullTypeTag) {
-            this.numberOfItems++;
-            this.outputStream.write(item.getBytes(), item.getStartIndex() + 1, item.getLength() - 1);
-        }
-    }
-
-    @Override
-    public void write(DataOutput out, boolean writeTypeTag) throws HyracksDataException {
-        try {
-            if (!fixedSize)
-                metadataInfoSize += offsets.size() * 4;
-            if (offsetArray == null || offsetArray.length < metadataInfoSize)
-                offsetArray = new byte[metadataInfoSize];
-
-            SerializerDeserializerUtil.writeIntToByteArray(offsetArray,
-                    headerSize + metadataInfoSize + outputStream.size(), offsetPosition);
-            SerializerDeserializerUtil.writeIntToByteArray(offsetArray, this.numberOfItems, offsetPosition + 4);
-
-            if (!fixedSize) {
-                offsetPosition += 8;
-                for (int i = 0; i < offsets.size(); i++) {
-                    SerializerDeserializerUtil.writeIntToByteArray(offsetArray, offsets.get(i) + metadataInfoSize
-                            + headerSize, offsetPosition);
-                    offsetPosition += 4;
-                }
-            }
-            if (writeTypeTag) {
-                out.writeByte(UNORDEREDLIST_TYPE_TAG);
-            }
-            out.writeByte(itemTypeTag.serialize());
-            out.write(offsetArray, 0, metadataInfoSize);
-            out.write(outputStream.toByteArray(), 0, outputStream.size());
-        } catch (IOException e) {
-            throw new HyracksDataException(e);
-        }
+        super(ATypeTag.UNORDEREDLIST);
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/base/IAsterixApplicationContextInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/base/IAsterixApplicationContextInfo.java
deleted file mode 100644
index d8d9e78..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/base/IAsterixApplicationContextInfo.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package edu.uci.ics.asterix.dataflow.base;
-
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexRegistryProvider;
-import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
-
-public interface IAsterixApplicationContextInfo {
-    public IIndexRegistryProvider<IIndex> getTreeRegisterProvider();
-
-    public IStorageManagerInterface getStorageManagerInterface();
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java
new file mode 100644
index 0000000..d1ee8c2
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java
@@ -0,0 +1,56 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import java.io.IOException;
+
+import edu.uci.ics.hyracks.data.std.util.GrowableArray;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IToken;
+
+public class AListElementToken implements IToken {
+
+    protected byte[] data;
+    protected int start;
+    protected int length;
+    protected int tokenLength;
+    protected int typeTag;
+    
+    @Override
+    public byte[] getData() {
+        return data;
+    }
+
+    @Override
+    public int getLength() {
+        return length;
+    }
+
+    @Override
+    public int getStart() {
+        return start;
+    }
+
+    @Override
+    public int getTokenLength() {
+        return tokenLength;
+    }
+
+    @Override
+    public void reset(byte[] data, int start, int length, int tokenLength, int tokenCount) {
+        this.data = data;
+        this.start = start;
+        this.length = length;
+        this.tokenLength = tokenLength;
+        // We abuse the last param, tokenCount, to pass the type tag.
+        typeTag = tokenCount;
+    }
+
+    @Override
+    public void serializeToken(GrowableArray out) throws IOException {
+        out.getDataOutput().writeByte(typeTag);
+        out.getDataOutput().write(data, start, length);
+    }
+
+    @Override
+    public void serializeTokenCount(GrowableArray out) throws IOException {
+        throw new UnsupportedOperationException("Token count not implemented.");
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementTokenFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementTokenFactory.java
new file mode 100644
index 0000000..1ccf2db
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementTokenFactory.java
@@ -0,0 +1,14 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IToken;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+
+public class AListElementTokenFactory implements ITokenFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public IToken createToken() {
+        return new AListElementToken();
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizer.java
new file mode 100644
index 0000000..89a3ff7
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizer.java
@@ -0,0 +1,69 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IToken;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+
+public class AOrderedListBinaryTokenizer implements IBinaryTokenizer {
+
+    protected byte[] data;
+    protected int start;
+    protected int length;
+    protected int listLength;
+    protected int itemIndex;
+
+    protected final IToken token;
+
+    public AOrderedListBinaryTokenizer(ITokenFactory tokenFactory) {
+        token = tokenFactory.createToken();
+    }
+
+    @Override
+    public IToken getToken() {
+        return token;
+    }
+
+    @Override
+    public boolean hasNext() {
+        return itemIndex < listLength;
+    }
+
+    @Override
+    public void next() {
+        int itemOffset = -1;
+        int length = -1;
+        try {
+            itemOffset = getItemOffset(data, start, itemIndex);
+            // Assuming homogeneous list.
+            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(data[start + 1]);
+            length = NonTaggedFormatUtil.getFieldValueLength(data, itemOffset, typeTag, false);
+            // Last param is a hack to pass the type tag.
+            token.reset(data, itemOffset, length, length, data[start + 1]);
+        } catch (AsterixException e) {
+            throw new IllegalStateException(e);
+        }
+        itemIndex++;
+    }
+
+    @Override
+    public void reset(byte[] data, int start, int length) {
+        this.data = data;
+        this.start = start;
+        this.length = length;
+        this.listLength = getNumberOfItems(data, start);
+        this.itemIndex = 0;
+    }
+
+    protected int getItemOffset(byte[] data, int start, int itemIndex) throws AsterixException {
+        return AOrderedListSerializerDeserializer.getItemOffset(data, start, itemIndex);
+    }
+
+    protected int getNumberOfItems(byte[] data, int start) {
+        return AOrderedListSerializerDeserializer.getNumberOfItems(data, start);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizerFactory.java
new file mode 100644
index 0000000..6c5077b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AOrderedListBinaryTokenizerFactory.java
@@ -0,0 +1,20 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+
+public class AOrderedListBinaryTokenizerFactory implements IBinaryTokenizerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final ITokenFactory tokenFactory;
+
+    public AOrderedListBinaryTokenizerFactory(ITokenFactory tokenFactory) {
+        this.tokenFactory = tokenFactory;
+    }
+
+    @Override
+    public IBinaryTokenizer createTokenizer() {
+        return new AOrderedListBinaryTokenizer(tokenFactory);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizer.java
new file mode 100644
index 0000000..7e0ac32
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizer.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+
+public class AUnorderedListBinaryTokenizer extends AOrderedListBinaryTokenizer {
+
+    public AUnorderedListBinaryTokenizer(ITokenFactory tokenFactory) {
+        super(tokenFactory);
+    }
+
+    @Override
+    protected int getItemOffset(byte[] data, int start, int itemIndex) throws AsterixException {
+        return AUnorderedListSerializerDeserializer.getItemOffset(data, start, itemIndex);
+    }
+
+    @Override
+    protected int getNumberOfItems(byte[] data, int start) {
+        return AUnorderedListSerializerDeserializer.getNumberOfItems(data, start);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizerFactory.java
new file mode 100644
index 0000000..fc55aa6
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AUnorderedListBinaryTokenizerFactory.java
@@ -0,0 +1,20 @@
+package edu.uci.ics.asterix.dataflow.data.common;
+
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+
+public class AUnorderedListBinaryTokenizerFactory implements IBinaryTokenizerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final ITokenFactory tokenFactory;
+
+    public AUnorderedListBinaryTokenizerFactory(ITokenFactory tokenFactory) {
+        this.tokenFactory = tokenFactory;
+    }
+
+    @Override
+    public IBinaryTokenizer createTokenizer() {
+        return new AUnorderedListBinaryTokenizer(tokenFactory);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
index 013728f..7448a9d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlExpressionTypeComputer.java
@@ -3,13 +3,13 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
@@ -21,7 +21,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AqlExpressionTypeComputer implements IExpressionTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlMergeAggregationExpressionFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlMergeAggregationExpressionFactory.java
index 5bb2491..9c10166 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlMergeAggregationExpressionFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlMergeAggregationExpressionFactory.java
@@ -7,6 +7,7 @@
 import org.apache.commons.lang3.mutable.MutableObject;
 
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
@@ -14,7 +15,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IMergeAggregationExpressionFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AqlMergeAggregationExpressionFactory implements IMergeAggregationExpressionFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
index bf68917..748c367 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
@@ -4,8 +4,8 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.INullableTypeComputer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AqlNullableTypeComputer implements INullableTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlPartialAggregationTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlPartialAggregationTypeComputer.java
index 37b3cc8..591177d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlPartialAggregationTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlPartialAggregationTypeComputer.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
@@ -16,7 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AqlPartialAggregationTypeComputer implements IPartialAggregationTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/IBinaryTokenizerFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/IBinaryTokenizerFactoryProvider.java
index a8e9cb9..b9af9bf 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/IBinaryTokenizerFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/IBinaryTokenizerFactoryProvider.java
@@ -1,7 +1,11 @@
 package edu.uci.ics.asterix.dataflow.data.common;
 
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
 
 public interface IBinaryTokenizerFactoryProvider {
-    public IBinaryTokenizerFactory getTokenizerFactory(Object type);
+    public IBinaryTokenizerFactory getWordTokenizerFactory(ATypeTag typeTag, boolean hashedTokens);
+
+    public IBinaryTokenizerFactory getNGramTokenizerFactory(ATypeTag typeTag, int gramLength, boolean usePrePost,
+            boolean hashedTokens);
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateOrTimeAscBinaryComparatorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateOrTimeAscBinaryComparatorFactory.java
new file mode 100644
index 0000000..464a03c
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateOrTimeAscBinaryComparatorFactory.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.dataflow.data.nontagged.comparators;
+
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+
+public class ADateOrTimeAscBinaryComparatorFactory implements IBinaryComparatorFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final ADateOrTimeAscBinaryComparatorFactory INSTANCE = new ADateOrTimeAscBinaryComparatorFactory();
+
+    private ADateOrTimeAscBinaryComparatorFactory() {
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory#createBinaryComparator()
+     */
+    @Override
+    public IBinaryComparator createBinaryComparator() {
+        return new IBinaryComparator() {
+
+            @Override
+            public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
+                int chrononTime1 = getInt(b1, s1);
+                int chrononTime2 = getInt(b2, s2);
+
+                if (chrononTime1 > chrononTime2) {
+                    return 1;
+                } else if (chrononTime1 < chrononTime2) {
+                    return -1;
+                } else {
+                    return 0;
+                }
+            }
+
+            private int getInt(byte[] bytes, int start) {
+                return ((bytes[start] & 0xff) << 24) + ((bytes[start + 1] & 0xff) << 16)
+                        + ((bytes[start + 2] & 0xff) << 8) + ((bytes[start + 3] & 0xff) << 0);
+            }
+        };
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateTimeAscBinaryComparatorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateTimeAscBinaryComparatorFactory.java
index 50f4302..2dd8785 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateTimeAscBinaryComparatorFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ADateTimeAscBinaryComparatorFactory.java
@@ -1,15 +1,11 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.comparators;
 
-import edu.uci.ics.asterix.om.base.AMutableDateTime;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 
 public class ADateTimeAscBinaryComparatorFactory implements IBinaryComparatorFactory {
     private static final long serialVersionUID = 1L;
 
-    private AMutableDateTime dt1 = new AMutableDateTime(0, 0, 0, 0, 0, 0, 0, 0, 0);
-    private AMutableDateTime dt2 = new AMutableDateTime(0, 0, 0, 0, 0, 0, 0, 0, 0);
-
     public static final ADateTimeAscBinaryComparatorFactory INSTANCE = new ADateTimeAscBinaryComparatorFactory();
 
     private ADateTimeAscBinaryComparatorFactory() {
@@ -21,35 +17,24 @@
 
             @Override
             public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
-                short year = (short) (((b1[s1] & 0xff) << 8) | b1[s1 + 1] & 0xff);
-                int time = ((b1[s1 + 4] & 0xff) << 24) | ((b1[s1 + 5] & 0xff) << 16) | ((b1[s1 + 6] & 0xff) << 8)
-                        | (b1[s1 + 7] & 0xff);
 
-                dt1.setValue(year >> 1, // year
-                        (year & 0x0001) * 8 + ((b1[s1 + 2] >>> 5) & 0x07), // month
-                        b1[s1 + 2] & 0x1f, // day
-                        (short) ((time) * 20 % 216000000 / 3600000), // hour
-                        (short) ((time) * 20 % 3600000 / 60000), // minutes
-                        (short) ((time) * 20 % 60000 / 1000), // seconds
-                        (short) ((time) * 20 % 1000), // milliseconds
-                        0, // microseconds
-                        b1[s1 + 3]); // timezone
+                long chrononTime1 = getLong(b1, s1);
+                long chrononTime2 = getLong(b2, s2);
 
-                year = (short) (((b2[s2] & 0xff) << 8) | b2[s2 + 1] & 0xff);
-                time = ((b2[s2 + 4] & 0xff) << 24) | ((b2[s2 + 5] & 0xff) << 16) | ((b2[s2 + 6] & 0xff) << 8)
-                        | (b2[s2 + 7] & 0xff);
+                if (chrononTime1 > chrononTime2) {
+                    return 1;
+                } else if (chrononTime1 < chrononTime2) {
+                    return -1;
+                } else {
+                    return 0;
+                }
+            }
 
-                dt2.setValue(year >> 1, // year
-                        (year & 0x0001) * 8 + ((b2[s2 + 2] >>> 5) & 0x07), // month
-                        b2[s2 + 2] & 0x1f, // day
-                        (short) ((time) * 20 % 216000000 / 3600000), // hour
-                        (short) ((time) * 20 % 3600000 / 60000), // minutes
-                        (short) ((time) * 20 % 60000 / 1000), // seconds
-                        (short) ((time) * 20 % 1000), // milliseconds
-                        0, // microseconds
-                        b2[s2 + 3]); // timezone
-
-                return dt1.compare(dt2);
+            private long getLong(byte[] bytes, int start) {
+                return (((long) (bytes[start] & 0xff)) << 56) + (((long) (bytes[start + 1] & 0xff)) << 48)
+                        + (((long) (bytes[start + 2] & 0xff)) << 40) + (((long) (bytes[start + 3] & 0xff)) << 32)
+                        + (((long) (bytes[start + 4] & 0xff)) << 24) + (((long) (bytes[start + 5] & 0xff)) << 16)
+                        + (((long) (bytes[start + 6] & 0xff)) << 8) + (((long) (bytes[start + 7] & 0xff)) << 0);
             }
 
         };
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
index 25a4ad3..0e486e7 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
@@ -2,7 +2,7 @@
 
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
@@ -24,15 +24,21 @@
     public IBinaryComparator createBinaryComparator() {
         return new IBinaryComparator() {
             final IBinaryComparator ascBoolComp = BooleanBinaryComparatorFactory.INSTANCE.createBinaryComparator();
-            final IBinaryComparator ascIntComp = new PointableBinaryComparatorFactory(IntegerPointable.FACTORY).createBinaryComparator();
+            final IBinaryComparator ascIntComp = new PointableBinaryComparatorFactory(IntegerPointable.FACTORY)
+                    .createBinaryComparator();
             final IBinaryComparator ascLongComp = LongBinaryComparatorFactory.INSTANCE.createBinaryComparator();
-            final IBinaryComparator ascStrComp = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY).createBinaryComparator();
-            final IBinaryComparator ascFloatComp = new PointableBinaryComparatorFactory(FloatPointable.FACTORY).createBinaryComparator();
-            final IBinaryComparator ascDoubleComp = new PointableBinaryComparatorFactory(DoublePointable.FACTORY).createBinaryComparator();
+            final IBinaryComparator ascStrComp = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascFloatComp = new PointableBinaryComparatorFactory(FloatPointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascDoubleComp = new PointableBinaryComparatorFactory(DoublePointable.FACTORY)
+                    .createBinaryComparator();
             final IBinaryComparator ascRectangleComp = RectangleBinaryComparatorFactory.INSTANCE
                     .createBinaryComparator();
             final IBinaryComparator ascDateTimeComp = ADateTimeAscBinaryComparatorFactory.INSTANCE
                     .createBinaryComparator();
+            final IBinaryComparator ascDateOrTimeComp = ADateOrTimeAscBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
 
             @Override
             public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
@@ -73,6 +79,10 @@
                     case DATETIME: {
                         return ascDateTimeComp.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
                     }
+                    case TIME:
+                    case DATE: {
+                        return ascDateOrTimeComp.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
+                    }
                     default: {
                         throw new NotImplementedException("Comparison for type " + tag + " is not implemented");
                     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
index 4c435fa..15fd8c8 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
@@ -2,7 +2,7 @@
 
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryHashFunctionFactory;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/MurmurHash3BinaryHashFunctionFamily.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/MurmurHash3BinaryHashFunctionFamily.java
new file mode 100644
index 0000000..83b165b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/MurmurHash3BinaryHashFunctionFamily.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.dataflow.data.nontagged.hash;
+
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFamily;
+
+/**
+ * An implementation of the Murmur3 hash family. The code is implemented based
+ * on the original <a
+ * href=http://code.google.com/p/guava-libraries/source/browse
+ * /guava/src/com/google/common/hash/Murmur3_32HashFunction.java>guava
+ * implementation</a> from Google Guava library.
+ */
+public class MurmurHash3BinaryHashFunctionFamily implements
+		IBinaryHashFunctionFamily {
+
+	public static final IBinaryHashFunctionFamily INSTANCE = new MurmurHash3BinaryHashFunctionFamily();
+
+	private static final long serialVersionUID = 1L;
+
+	private MurmurHash3BinaryHashFunctionFamily() {
+	}
+
+	private static final int C1 = 0xcc9e2d51;
+	private static final int C2 = 0x1b873593;
+	private static final int C3 = 5;
+	private static final int C4 = 0xe6546b64;
+	private static final int C5 = 0x85ebca6b;
+	private static final int C6 = 0xc2b2ae35;
+
+	@Override
+	public IBinaryHashFunction createBinaryHashFunction(final int seed) {
+		return new IBinaryHashFunction() {
+			@Override
+			public int hash(byte[] bytes, int offset, int length) {
+				int h = seed;
+				int p = offset;
+				int remain = length;
+				while (remain >= 4) {
+					int k = (bytes[p] & 0xff) | ((bytes[p + 1] & 0xff) << 8)
+							| ((bytes[p + 2] & 0xff) << 16)
+							| ((bytes[p + 3] & 0xff) << 24);
+					k *= C1;
+					k = Integer.rotateLeft(k, 15);
+					k *= C2;
+					h ^= k;
+					h = Integer.rotateLeft(h, 13);
+					h = h * C3 + C4;
+					p += 4;
+					remain -= 4;
+				}
+				if (remain > 0) {
+					int k = 0;
+					for (int i = 0; remain > 0; i += 8) {
+						k ^= (bytes[p++] & 0xff) << i;
+						remain--;
+					}
+					k *= C1;
+					k = Integer.rotateLeft(k, 15);
+					k *= C2;
+					h ^= k;
+				}
+				h ^= length;
+				h ^= (h >>> 16);
+				h *= C5;
+				h ^= (h >>> 13);
+				h *= C6;
+				h ^= (h >>> 16);
+				return h;
+			}
+		};
+	}
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32AscNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32AscNormalizedKeyComputerFactory.java
deleted file mode 100644
index 903ac3d..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32AscNormalizedKeyComputerFactory.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
-
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.normalizers.IntegerNormalizedKeyComputerFactory;
-
-public class AInt32AscNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AInt32AscNormalizedKeyComputerFactory INSTANCE = new AInt32AscNormalizedKeyComputerFactory();
-
-    private IntegerNormalizedKeyComputerFactory inkcf = new IntegerNormalizedKeyComputerFactory();
-
-    private AInt32AscNormalizedKeyComputerFactory() {
-    }
-
-    @Override
-    public INormalizedKeyComputer createNormalizedKeyComputer() {
-        final INormalizedKeyComputer intNkc = inkcf.createNormalizedKeyComputer();
-        return new INormalizedKeyComputer() {
-
-            @Override
-            public int normalize(byte[] bytes, int start, int length) {
-                return intNkc.normalize(bytes, start + 1, length - 1);
-            }
-        };
-    }
-
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32DescNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32DescNormalizedKeyComputerFactory.java
deleted file mode 100644
index cec6a40..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AInt32DescNormalizedKeyComputerFactory.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
-
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.normalizers.IntegerNormalizedKeyComputerFactory;
-
-public class AInt32DescNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AInt32DescNormalizedKeyComputerFactory INSTANCE = new AInt32DescNormalizedKeyComputerFactory();
-
-    private IntegerNormalizedKeyComputerFactory inkcf = new IntegerNormalizedKeyComputerFactory();
-
-    private AInt32DescNormalizedKeyComputerFactory() {
-    }
-
-    @Override
-    public INormalizedKeyComputer createNormalizedKeyComputer() {
-        final INormalizedKeyComputer intNkc = inkcf.createNormalizedKeyComputer();
-        return new INormalizedKeyComputer() {
-
-            @Override
-            public int normalize(byte[] bytes, int start, int length) {
-                int nk = intNkc.normalize(bytes, start + 1, length - 1);
-                return (int) ((long) 0xffffffff - (long) nk);
-            }
-        };
-    }
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringAscNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringAscNormalizedKeyComputerFactory.java
deleted file mode 100644
index 0d1780f..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringAscNormalizedKeyComputerFactory.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
-
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.normalizers.UTF8StringNormalizedKeyComputerFactory;
-
-public class AStringAscNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AStringAscNormalizedKeyComputerFactory INSTANCE = new AStringAscNormalizedKeyComputerFactory();
-
-    private AStringAscNormalizedKeyComputerFactory() {
-    }
-
-    private UTF8StringNormalizedKeyComputerFactory strnkcf = new UTF8StringNormalizedKeyComputerFactory();
-
-    @Override
-    public INormalizedKeyComputer createNormalizedKeyComputer() {
-        final INormalizedKeyComputer strNkc = strnkcf.createNormalizedKeyComputer();
-        return new INormalizedKeyComputer() {
-
-            @Override
-            public int normalize(byte[] bytes, int start, int length) {
-                return strNkc.normalize(bytes, start + 1, length - 1);
-            }
-        };
-    }
-
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringDescNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringDescNormalizedKeyComputerFactory.java
deleted file mode 100644
index 0ff6acd..0000000
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AStringDescNormalizedKeyComputerFactory.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
-
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
-import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
-import edu.uci.ics.hyracks.dataflow.common.data.normalizers.UTF8StringNormalizedKeyComputerFactory;
-
-public class AStringDescNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
-
-    private static final long serialVersionUID = 1L;
-
-    public static final AStringDescNormalizedKeyComputerFactory INSTANCE = new AStringDescNormalizedKeyComputerFactory();
-
-    private AStringDescNormalizedKeyComputerFactory() {
-    }
-
-    private UTF8StringNormalizedKeyComputerFactory strnkcf = new UTF8StringNormalizedKeyComputerFactory();
-
-    @Override
-    public INormalizedKeyComputer createNormalizedKeyComputer() {
-        final INormalizedKeyComputer strNkc = strnkcf.createNormalizedKeyComputer();
-        return new INormalizedKeyComputer() {
-
-            @Override
-            public int normalize(byte[] bytes, int start, int length) {
-                int nk = strNkc.normalize(bytes, start + 1, length - 1);
-                return (int) ((long) 0xffffffff - (long) nk);
-            }
-        };
-    }
-
-}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedAscNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedAscNormalizedKeyComputerFactory.java
new file mode 100644
index 0000000..2efa593
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedAscNormalizedKeyComputerFactory.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
+
+import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
+import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
+
+/**
+ * This class uses a decorator pattern to wrap an ASC ordered INomralizedKeyComputerFactory implementation to
+ * obtain the ASC order.
+ */
+public class AWrappedAscNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final INormalizedKeyComputerFactory nkcf;
+
+    public AWrappedAscNormalizedKeyComputerFactory(INormalizedKeyComputerFactory nkcf) {
+        this.nkcf = nkcf;
+    }
+
+    @Override
+    public INormalizedKeyComputer createNormalizedKeyComputer() {
+        final INormalizedKeyComputer nkc = nkcf.createNormalizedKeyComputer();
+        return new INormalizedKeyComputer() {
+
+            @Override
+            public int normalize(byte[] bytes, int start, int length) {
+                // start +1, length -1 is because in ASTERIX data format, there is always a type tag before the value 
+                return nkc.normalize(bytes, start + 1, length - 1);
+            }
+        };
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedDescNormalizedKeyComputerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedDescNormalizedKeyComputerFactory.java
new file mode 100644
index 0000000..a5653b9
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/keynormalizers/AWrappedDescNormalizedKeyComputerFactory.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers;
+
+import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
+import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
+
+/**
+ * This class uses a decorator pattern to wrap an ASC ordered INomralizedKeyComputerFactory implementation
+ * to obtain the DESC order.
+ */
+public class AWrappedDescNormalizedKeyComputerFactory implements INormalizedKeyComputerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final INormalizedKeyComputerFactory nkcf;
+
+    public AWrappedDescNormalizedKeyComputerFactory(INormalizedKeyComputerFactory nkcf) {
+        this.nkcf = nkcf;
+    }
+
+    @Override
+    public INormalizedKeyComputer createNormalizedKeyComputer() {
+        final INormalizedKeyComputer nkc = nkcf.createNormalizedKeyComputer();
+        return new INormalizedKeyComputer() {
+
+            @Override
+            public int normalize(byte[] bytes, int start, int length) {
+                int key = nkc.normalize(bytes, start + 1, length - 1);
+                return (int) ((long) 0xffffffff - (long) key);
+            }
+        };
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinter.java
index c7f0bda..33866df 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ABooleanSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ABooleanPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ABooleanPrinter INSTANCE = new ABooleanPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinterFactory.java
index a5d50c2..4a48a16 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ABooleanPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ABooleanPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinter.java
index aa0e2f1..e2da96e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ACirclePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ACirclePrinter INSTANCE = new ACirclePrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinterFactory.java
index 64fbd14..9493f8f 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ACirclePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ACirclePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinter.java
index 0da9847..327faf1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinter.java
@@ -2,15 +2,16 @@
 
 import java.io.PrintStream;
 
-
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ADatePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
+    private static long CHRONON_OF_DAY = 24 * 60 * 60 * 1000;
     public static final ADatePrinter INSTANCE = new ADatePrinter();
+    private static final GregorianCalendarSystem gCalInstance = GregorianCalendarSystem.getInstance();
 
     @Override
     public void init() {
@@ -19,11 +20,24 @@
 
     @Override
     public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
-        int year = AInt16SerializerDeserializer.getShort(b, s + 1) >> 1;
-        int month = (AInt16SerializerDeserializer.getShort(b, s + 1) & 0x0001) * 8 + ((b[s + 3] >> 5) & 0x07);
-        int day = b[s + 3] & 0x1f;
-        byte timezone = b[s + 4];
-        ps.format("date(\"" + (year < 0 ? "%+05d" : "%04d") + "-%02d-%02d%+03d:%02d\")", year, month, day,
-                timezone / 4, timezone % 4 * ((timezone >= 0) ? 15 : -15));
+        long chrononTime = AInt32SerializerDeserializer.getInt(b, s + 1) * CHRONON_OF_DAY;
+
+        int year = gCalInstance.getYear(chrononTime);
+        int month = gCalInstance.getMonthOfYear(chrononTime, year);
+
+        ps.print("date(\"");
+        ps.append(String.format(year < 0 ? "%05d" : "%04d", year)).append("-").append(String.format("%02d", month))
+                .append("-").append(String.format("%02d", gCalInstance.getDayOfMonthYear(chrononTime, year, month)));
+        ps.print("\")");
+    }
+
+    public void printString(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        long chrononTime = AInt32SerializerDeserializer.getInt(b, s + 1) * CHRONON_OF_DAY;
+
+        int year = gCalInstance.getYear(chrononTime);
+        int month = gCalInstance.getMonthOfYear(chrononTime, year);
+
+        ps.append(String.format(year < 0 ? "%05d" : "%04d", year)).append("-").append(String.format("%02d", month))
+                .append("-").append(String.format("%02d", gCalInstance.getDayOfMonthYear(chrononTime, year, month)));
     }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinterFactory.java
index 914a0ec..b606aeb 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADatePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ADatePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
index 53a5be2..7cf1478 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
@@ -1,18 +1,16 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import java.io.IOException;
 import java.io.PrintStream;
 
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ADateTimePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ADateTimePrinter INSTANCE = new ADateTimePrinter();
+    private static final GregorianCalendarSystem gCalInstance = GregorianCalendarSystem.getInstance();
 
     @Override
     public void init() {
@@ -21,49 +19,32 @@
 
     @Override
     public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
-        int year = AInt16SerializerDeserializer.getShort(b, s + 1) >> 1;
-        int month = (AInt16SerializerDeserializer.getShort(b, s + 1) & 0x0001) * 8 + ((b[s + 3] >> 5) & 0x07);
+        long chrononTime = AInt64SerializerDeserializer.getLong(b, s + 1);
 
-        int day = b[s + 3] & 0x1f;
-        byte timezone = b[s + 4];
-
-        int time = AInt32SerializerDeserializer.getInt(b, s + 5);
-        // int msec = (time) * 20 % 1000;
-        // int sec = (time) * 20 % 60000 / 1000;
-        // int min = (time) * 20 % 3600000 / 60000;
-        // int hour = (time) * 20 % 216000000 / 3600000;
+        int year = gCalInstance.getYear(chrononTime);
+        int month = gCalInstance.getMonthOfYear(chrononTime, year);
 
         ps.print("datetime(\"");
-        if (year < 0) {
-            ps.print("-");
-        }
-        int y = Math.abs(year);
-        if (y < 1000) {
-            ps.print("0");
-        }
-        if (y < 100) {
-            ps.print("0");
-        }
-        if (y < 10) {
-            ps.print("0");
-        }
-        try {
-            WriteValueTools.writeInt(y, ps);
-            ps.print("-");
-            if (month < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(month, ps);
-            ps.print("-");
-            if (day < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(day, ps);
-            ps.print("T");
-        } catch (IOException e) {
-            throw new AlgebricksException(e);
-        }
-        ATimePrinter.printTime(time, timezone, ps);
+        ps.append(String.format(year < 0 ? "%05d" : "%04d", year)).append("-").append(String.format("%02d", month))
+                .append("-").append(String.format("%02d", gCalInstance.getDayOfMonthYear(chrononTime, year, month)))
+                .append("T").append(String.format("%02d", gCalInstance.getHourOfDay(chrononTime))).append(":")
+                .append(String.format("%02d", gCalInstance.getMinOfHour(chrononTime))).append(":")
+                .append(String.format("%02d", gCalInstance.getSecOfMin(chrononTime))).append(".")
+                .append(String.format("%03d", gCalInstance.getMillisOfSec(chrononTime))).append("Z");
         ps.print("\")");
     }
+
+    public void printString(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        long chrononTime = AInt64SerializerDeserializer.getLong(b, s + 1);
+
+        int year = gCalInstance.getYear(chrononTime);
+        int month = gCalInstance.getMonthOfYear(chrononTime, year);
+
+        ps.append(String.format(year < 0 ? "%05d" : "%04d", year)).append("-").append(String.format("%02d", month))
+                .append("-").append(String.format("%02d", gCalInstance.getDayOfMonthYear(chrononTime, year, month)))
+                .append("T").append(String.format("%02d", gCalInstance.getHourOfDay(chrononTime))).append(":")
+                .append(String.format("%02d", gCalInstance.getMinOfHour(chrononTime))).append(":")
+                .append(String.format("%02d", gCalInstance.getSecOfMin(chrononTime))).append(".")
+                .append(String.format("%03d", gCalInstance.getMillisOfSec(chrononTime))).append("Z");
+    }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinterFactory.java
index 3f6fabf..3e21a36 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ADateTimePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinter.java
index 7eccc7c..ae50d0e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ADoublePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ADoublePrinter INSTANCE = new ADoublePrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinterFactory.java
index 5768af3..efabe35 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADoublePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ADoublePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinter.java
index e51e768..061d372 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinter.java
@@ -4,14 +4,16 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
 
 public class ADurationPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ADurationPrinter INSTANCE = new ADurationPrinter();
+    private static final GregorianCalendarSystem gCalInstance = GregorianCalendarSystem.getInstance();
 
     @Override
     public void init() {
@@ -22,39 +24,63 @@
     public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
         boolean positive = true;
         int months = AInt32SerializerDeserializer.getInt(b, s + 1);
-        int seconds = AInt32SerializerDeserializer.getInt(b, s + 5);
+        long milliseconds = AInt64SerializerDeserializer.getLong(b, s + 5);
 
-        if (months < 0 || seconds < 0) {
+        // set the negative flag. "||" is necessary in case that months field is not there (so it is 0)
+        if (months < 0 || milliseconds < 0) {
             months *= -1;
-            seconds *= -1;
+            milliseconds *= -1;
             positive = false;
         }
 
-        int month = (int) (months % 12);
-        int year = (int) (months / 12);
-        int second = (int) (seconds % 60);
-        int minute = (int) (seconds % 3600 / 60);
-        int hour = (int) (seconds % (86400) / 3600);
-        int day = (int) (seconds / (86400));
+        int month = gCalInstance.getDurationMonth(months);
+        int year = gCalInstance.getDurationYear(months);
+        int millisecond = gCalInstance.getDurationMillisecond(milliseconds);
+        int second = gCalInstance.getDurationSecond(milliseconds);
+        int minute = gCalInstance.getDurationMinute(milliseconds);
+        int hour = gCalInstance.getDurationHour(milliseconds);
+        int day = gCalInstance.getDurationDay(milliseconds);
 
         ps.print("duration(\"");
         if (!positive) {
             ps.print("-");
         }
         try {
-            ps.print("D");
-            WriteValueTools.writeInt(year, ps);
-            ps.print("Y");
-            WriteValueTools.writeInt(month, ps);
-            ps.print("M");
-            WriteValueTools.writeInt(day, ps);
-            ps.print("DT");
-            WriteValueTools.writeInt(hour, ps);
-            ps.print("H");
-            WriteValueTools.writeInt(minute, ps);
-            ps.print("M");
-            WriteValueTools.writeInt(second, ps);
-            ps.print("S\")");
+            ps.print("P");
+            if (year != 0) {
+                WriteValueTools.writeInt(year, ps);
+                ps.print("Y");
+            }
+            if (month != 0) {
+                WriteValueTools.writeInt(month, ps);
+                ps.print("M");
+            }
+            if (day != 0) {
+                WriteValueTools.writeInt(day, ps);
+                ps.print("D");
+            }
+            if (hour != 0 || minute != 0 || second != 0 || millisecond != 0) {
+                ps.print("T");
+            }
+            if (hour != 0) {
+                WriteValueTools.writeInt(hour, ps);
+                ps.print("H");
+            }
+            if (minute != 0) {
+                WriteValueTools.writeInt(minute, ps);
+                ps.print("M");
+            }
+            if (second != 0 || millisecond != 0) {
+                WriteValueTools.writeInt(second, ps);
+            }
+            if (millisecond > 0) {
+                ps.print(".");
+                WriteValueTools.writeInt(millisecond, ps);
+            }
+            if (second != 0 || millisecond != 0) {
+                ps.print("S");
+            }
+            ps.print("\")");
         } catch (IOException e) {
             throw new AlgebricksException(e);
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinterFactory.java
index 2603b24..2316a81 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADurationPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ADurationPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinter.java
index bee8b60..96c9ee9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinter.java
@@ -2,14 +2,12 @@
 
 import java.io.PrintStream;
 
-
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class AFloatPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final AFloatPrinter INSTANCE = new AFloatPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
index 1b34cf9..f562d78 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16Printer.java
index 374fcee..1687fb1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16Printer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16Printer.java
@@ -6,15 +6,13 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 
 public class AInt16Printer implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
-
     private static final String SUFFIX_STRING = "i16";
     private static byte[] _suffix;
     private static int _suffix_count;
@@ -23,6 +21,7 @@
         DataOutput dout = new DataOutputStream(interm);
         try {
             dout.writeUTF(SUFFIX_STRING);
+            interm.close();
         } catch (IOException e) {
             e.printStackTrace();
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
index ec0f963..2212030 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32Printer.java
index 7c842c9..b20db34 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32Printer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32Printer.java
@@ -4,13 +4,12 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
 
 public class AInt32Printer implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final AInt32Printer INSTANCE = new AInt32Printer();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
index 6bec65c..b97484c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64Printer.java
index c833086..312802a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64Printer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64Printer.java
@@ -6,15 +6,13 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 
 public class AInt64Printer implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
-
     private static final String SUFFIX_STRING = "i64";
     private static byte[] _suffix;
     private static int _suffix_count;
@@ -23,6 +21,7 @@
         DataOutput dout = new DataOutputStream(interm);
         try {
             dout.writeUTF(SUFFIX_STRING);
+            interm.close();
         } catch (IOException e) {
             e.printStackTrace();
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64PrinterFactory.java
index 30f31cc..b180710 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt64PrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AInt64PrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8Printer.java
index c3858fc..a5a421d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8Printer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8Printer.java
@@ -5,17 +5,14 @@
 import java.io.IOException;
 import java.io.PrintStream;
 
-
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 
 public class AInt8Printer implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
-
     private static final String SUFFIX_STRING = "i8";
     private static byte[] _suffix;
     private static int _suffix_count;
@@ -24,6 +21,7 @@
         DataOutput dout = new DataOutputStream(interm);
         try {
             dout.writeUTF(SUFFIX_STRING);
+            interm.close();
         } catch (IOException e) {
             e.printStackTrace();
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
index 0098bab..6f32af5 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java
new file mode 100644
index 0000000..b96feff
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AIntervalPrinter implements IPrinter {
+
+    public static final AIntervalPrinter INSTANCE = new AIntervalPrinter();
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.hyracks.algebricks.data.IPrinter#init()
+     */
+    @Override
+    public void init() throws AlgebricksException {
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.hyracks.algebricks.data.IPrinter#print(byte[], int, int, java.io.PrintStream)
+     */
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("interval");
+
+        short typetag = AInt8SerializerDeserializer.getByte(b, s + 1 + 8 * 2);
+
+        IPrinter timeInstancePrinter;
+
+        if (typetag == ATypeTag.DATE.serialize()) {
+            ps.print("-date(\"");
+            timeInstancePrinter = ADatePrinter.INSTANCE;
+            ((ADatePrinter)timeInstancePrinter).printString(b, s + 4, 4, ps);
+            ps.print(", ");
+            ((ADatePrinter)timeInstancePrinter).printString(b, s + 12, 4, ps);
+        } else if (typetag == ATypeTag.TIME.serialize()) {
+            ps.print("-time(\"");
+            timeInstancePrinter = ATimePrinter.INSTANCE;
+            ((ATimePrinter)timeInstancePrinter).printString(b, s + 4, 4, ps);
+            ps.print(", ");
+            ((ATimePrinter)timeInstancePrinter).printString(b, s + 12, 4, ps);
+        } else if (typetag == ATypeTag.DATETIME.serialize()) {
+            ps.print("-datetime(\"");
+            timeInstancePrinter = ADateTimePrinter.INSTANCE;
+            ((ADateTimePrinter)timeInstancePrinter).printString(b, s, 8, ps);
+            ps.print(", ");
+            ((ADateTimePrinter)timeInstancePrinter).printString(b, s + 8, 8, ps);
+        } else {
+            throw new AlgebricksException("Unsupport internal time types in interval: " + typetag);
+        }
+
+        ps.print("\")");
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinterFactory.java
new file mode 100644
index 0000000..5500091
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinterFactory.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AIntervalPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AIntervalPrinterFactory INSTANCE = new AIntervalPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AIntervalPrinter.INSTANCE;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinter.java
index 99ca5f3..40f405c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ALinePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ALinePrinter INSTANCE = new ALinePrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinterFactory.java
index 82b20d7..055ded2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ALinePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ALinePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinter.java
index 323936d..daea967 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinter.java
@@ -2,14 +2,11 @@
 
 import java.io.PrintStream;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ANullPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ANullPrinter INSTANCE = new ANullPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
index b5c8ab8..aefb164 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullableFieldPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullableFieldPrinterFactory.java
index c8a5c75..7c569e3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullableFieldPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullableFieldPrinterFactory.java
@@ -6,9 +6,9 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ANullableFieldPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinter.java
index 164f0c9..478ad2c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinter.java
@@ -4,13 +4,12 @@
 
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class AObjectPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final AObjectPrinter INSTANCE = new AObjectPrinter();
 
     private IPrinter recordPrinter = new ARecordPrinterFactory(null).createPrinter();
@@ -74,6 +73,10 @@
                 ADurationPrinter.INSTANCE.print(b, s, l, ps);
                 break;
             }
+            case INTERVAL: {
+                AIntervalPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
             case POINT: {
                 APointPrinter.INSTANCE.print(b, s, l, ps);
                 break;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinterFactory.java
index 16980db..a18aac0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AObjectPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AObjectPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AOrderedlistPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AOrderedlistPrinterFactory.java
index e5dc622..7d04ebc 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AOrderedlistPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AOrderedlistPrinterFactory.java
@@ -2,22 +2,21 @@
 
 import java.io.PrintStream;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlPrinterFactoryProvider;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.APrintVisitor;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AOrderedlistPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
-
     private AOrderedListType orderedlistType;
 
     public AOrderedlistPrinterFactory(AOrderedListType orderedlistType) {
@@ -27,81 +26,29 @@
     @Override
     public IPrinter createPrinter() {
 
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = orderedlistType == null ? DefaultOpenFieldType
+                .getDefaultOpenFieldType(ATypeTag.ORDEREDLIST) : orderedlistType;
+        final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
+
         return new IPrinter() {
 
-            private IPrinter itemPrinter;
-            private IAType itemType;
-            private ATypeTag itemTag;
-            private boolean typedItemList = false;
-
-            // private int itemLength;
-            // private int numberOfitems;
-            // private int itemOffset;
-
             @Override
             public void init() throws AlgebricksException {
-
-                if (orderedlistType != null && orderedlistType.getItemType() != null) {
-                    itemType = orderedlistType.getItemType();
-                    if (itemType.getTypeTag() == ATypeTag.ANY) {
-                        this.typedItemList = false;
-                        this.itemPrinter = AObjectPrinterFactory.INSTANCE.createPrinter();
-                    } else {
-                        this.typedItemList = true;
-                        itemPrinter = AqlPrinterFactoryProvider.INSTANCE.getPrinterFactory(itemType).createPrinter();
-                        itemTag = orderedlistType.getItemType().getTypeTag();
-                    }
-                } else {
-                    this.typedItemList = false;
-                    this.itemPrinter = AObjectPrinterFactory.INSTANCE.createPrinter();
-                }
-                itemPrinter.init();
-
+                arg.second = inputType.getTypeTag();
             }
 
             @Override
-            public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
-                ps.print("[ ");
-                int numberOfitems = AInt32SerializerDeserializer.getInt(b, s + 6);
-                int itemOffset;
-                if (typedItemList) {
-                    switch (itemTag) {
-                        case STRING:
-                        case RECORD:
-                        case ORDEREDLIST:
-                        case UNORDEREDLIST:
-                        case ANY:
-                            itemOffset = s + 10 + (numberOfitems * 4);
-                            break;
-                        default:
-                            itemOffset = s + 10;
-                    }
-                } else
-                    itemOffset = s + 10 + (numberOfitems * 4);
-                int itemLength = 0;
+            public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
                 try {
-                    if (typedItemList) {
-                        for (int i = 0; i < numberOfitems; i++) {
-                            itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, false);
-                            itemPrinter.print(b, itemOffset - 1, itemLength, ps);
-                            itemOffset += itemLength;
-                            if (i + 1 < numberOfitems)
-                                ps.print(", ");
-                        }
-                    } else {
-                        for (int i = 0; i < numberOfitems; i++) {
-                            itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[itemOffset]);
-                            itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, true) + 1;
-                            itemPrinter.print(b, itemOffset, itemLength, ps);
-                            itemOffset += itemLength;
-                            if (i + 1 < numberOfitems)
-                                ps.print(", ");
-                        }
-                    }
-                } catch (AsterixException e) {
-                    throw new AlgebricksException(e);
+                    listAccessor.set(b, start, l);
+                    arg.first = ps;
+                    listAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
                 }
-                ps.print(" ]");
             }
         };
     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinter.java
index ff6c567..7394dc5 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class APoint3DPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final APoint3DPrinter INSTANCE = new APoint3DPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinterFactory.java
index adf6f33..1ff414c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APoint3DPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class APoint3DPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinter.java
index f4a70b4..7c50905 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class APointPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final APointPrinter INSTANCE = new APointPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
index 637c6ed..2622d1a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 
 public class APointPrinterFactory implements IPrinterFactory {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinter.java
index 6caf80b..bc1e553 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinter.java
@@ -4,12 +4,11 @@
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class APolygonPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final APolygonPrinter INSTANCE = new APolygonPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinterFactory.java
index ca5ebf8..f3fc2fe 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APolygonPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class APolygonPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARecordPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARecordPrinterFactory.java
index ec8044f..e4b2676 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARecordPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARecordPrinterFactory.java
@@ -2,23 +2,21 @@
 
 import java.io.PrintStream;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlPrinterFactoryProvider;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.APrintVisitor;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ARecordPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
-
     private final ARecordType recType;
 
     public ARecordPrinterFactory(ARecordType recType) {
@@ -28,137 +26,29 @@
     @Override
     public IPrinter createPrinter() {
 
-        return new IPrinter() {
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = recType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.RECORD)
+                : recType;
+        final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
 
-            private IPrinter[] fieldPrinters;
-            private IAType[] fieldTypes;
-            private int[] fieldOffsets;
-            private int numberOfSchemaFields, numberOfOpenFields, openPartOffset, fieldOffset, offsetArrayOffset,
-                    fieldValueLength, nullBitMapOffset, recordOffset;
-            private boolean isExpanded, hasNullableFields;
-            private ATypeTag tag;
+        return new IPrinter() {
 
             @Override
             public void init() throws AlgebricksException {
-
-                numberOfSchemaFields = 0;
-                if (recType != null) {
-                    numberOfSchemaFields = recType.getFieldNames().length;
-                    fieldPrinters = new IPrinter[numberOfSchemaFields];
-                    fieldTypes = new IAType[numberOfSchemaFields];
-                    fieldOffsets = new int[numberOfSchemaFields];
-                    for (int i = 0; i < numberOfSchemaFields; i++) {
-                        fieldTypes[i] = recType.getFieldTypes()[i];
-                        if (fieldTypes[i].getTypeTag() == ATypeTag.UNION
-                                && NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[i]))
-                            fieldPrinters[i] = (AqlPrinterFactoryProvider.INSTANCE
-                                    .getPrinterFactory(((AUnionType) fieldTypes[i]).getUnionList().get(
-                                            NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST))).createPrinter();
-                        else
-                            fieldPrinters[i] = (AqlPrinterFactoryProvider.INSTANCE.getPrinterFactory(fieldTypes[i]))
-                                    .createPrinter();
-                        fieldPrinters[i].init();
-                    }
-                }
+                arg.second = inputType.getTypeTag();
             }
 
             @Override
             public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
-                ps.print("{ ");
-                isExpanded = false;
-                openPartOffset = 0;
-                int s = start;
-                recordOffset = s;
-                if (recType == null) {
-                    openPartOffset = s + AInt32SerializerDeserializer.getInt(b, s + 6);
-                    s += 8;
-                    isExpanded = true;
-                } else {
-                    if (recType.isOpen()) {
-                        isExpanded = b[s + 5] == 1 ? true : false;
-                        if (isExpanded) {
-                            openPartOffset = s + AInt32SerializerDeserializer.getInt(b, s + 6);
-                            s += 10;
-                        } else
-                            s += 6;
-                    } else
-                        s += 5;
-                }
                 try {
-                    if (numberOfSchemaFields > 0) {
-                        s += 4;
-                        nullBitMapOffset = 0;
-                        hasNullableFields = NonTaggedFormatUtil.hasNullableField(recType);
-                        if (hasNullableFields) {
-                            nullBitMapOffset = s;
-                            offsetArrayOffset = s
-                                    + (this.numberOfSchemaFields % 8 == 0 ? numberOfSchemaFields / 8
-                                            : numberOfSchemaFields / 8 + 1);
-                        } else {
-                            offsetArrayOffset = s;
-                        }
-                        for (int i = 0; i < numberOfSchemaFields; i++) {
-                            fieldOffsets[i] = AInt32SerializerDeserializer.getInt(b, offsetArrayOffset) + recordOffset;
-                            offsetArrayOffset += 4;
-                        }
-                        for (int fieldNumber = 0; fieldNumber < numberOfSchemaFields; fieldNumber++) {
-                            if (fieldNumber != 0) {
-                                ps.print(", ");
-                            }
-                            ps.print("\"");
-                            ps.print(recType.getFieldNames()[fieldNumber]);
-                            ps.print("\": ");
-                            if (hasNullableFields) {
-                                byte b1 = b[nullBitMapOffset + fieldNumber / 8];
-                                int p = 1 << (7 - (fieldNumber % 8));
-                                if ((b1 & p) == 0) {
-                                    ps.print("null");
-                                    continue;
-                                }
-                            }
-                            if (fieldTypes[fieldNumber].getTypeTag() == ATypeTag.UNION) {
-                                if (NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[fieldNumber])) {
-                                    tag = ((AUnionType) fieldTypes[fieldNumber]).getUnionList()
-                                            .get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST).getTypeTag();
-                                    fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b,
-                                            fieldOffsets[fieldNumber], tag, false);
-                                    fieldPrinters[fieldNumber].print(b, fieldOffsets[fieldNumber] - 1,
-                                            fieldOffsets[fieldNumber], ps);
-                                }
-                            } else {
-                                tag = fieldTypes[fieldNumber].getTypeTag();
-                                fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b,
-                                        fieldOffsets[fieldNumber], tag, false);
-                                fieldPrinters[fieldNumber]
-                                        .print(b, fieldOffsets[fieldNumber] - 1, fieldValueLength, ps);
-                            }
-                        }
-                        if (isExpanded)
-                            ps.print(", ");
-                    }
-                    if (isExpanded) {
-                        numberOfOpenFields = AInt32SerializerDeserializer.getInt(b, openPartOffset);
-                        fieldOffset = openPartOffset + 4 + (8 * numberOfOpenFields);
-                        for (int i = 0; i < numberOfOpenFields; i++) {
-                            // we print the field name
-                            fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffset, ATypeTag.STRING,
-                                    false);
-                            AStringPrinter.INSTANCE.print(b, fieldOffset - 1, fieldValueLength, ps);
-                            fieldOffset += fieldValueLength;
-                            ps.print(": ");
-                            // now we print the value
-                            tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[fieldOffset]);
-                            fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffset, tag, true) + 1;
-                            AObjectPrinter.INSTANCE.print(b, fieldOffset, fieldValueLength, ps);
-                            fieldOffset += fieldValueLength;
-                            if (i + 1 < numberOfOpenFields)
-                                ps.print(", ");
-                        }
-                    }
-                } catch (AsterixException e) {
-                    throw new AlgebricksException(e);
+                    recAccessor.set(b, start, l);
+                    arg.first = ps;
+                    recAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
                 }
-                ps.print(" }");
             }
         };
     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinter.java
index 2a5984d..0618f28 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinter.java
@@ -3,12 +3,11 @@
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ARectanglePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ARectanglePrinter INSTANCE = new ARectanglePrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinterFactory.java
index ede96e6..07e5c44 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ARectanglePrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ARectanglePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinter.java
index 6e109d4..d491777 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinter.java
@@ -3,13 +3,12 @@
 import java.io.IOException;
 import java.io.PrintStream;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
 
 public class AStringPrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final AStringPrinter INSTANCE = new AStringPrinter();
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinterFactory.java
index da98ac8..508e1c3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AStringPrinterFactory.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AStringPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinter.java
index 5a6f754..aba6a4b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinter.java
@@ -1,17 +1,16 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import java.io.IOException;
 import java.io.PrintStream;
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 
 public class ATimePrinter implements IPrinter {
 
-    private static final long serialVersionUID = 1L;
     public static final ATimePrinter INSTANCE = new ATimePrinter();
+    private static final GregorianCalendarSystem gCalInstance = GregorianCalendarSystem.getInstance();
 
     @Override
     public void init() {
@@ -21,55 +20,23 @@
     @Override
     public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
         int time = AInt32SerializerDeserializer.getInt(b, s + 1);
+
         ps.print("time(\"");
-        int timezone = time >> 24;
-        time -= (timezone << 24);
-        printTime(time, timezone, ps);
+        ps.append(String.format("%02d", gCalInstance.getHourOfDay(time))).append(":")
+                .append(String.format("%02d", gCalInstance.getMinOfHour(time))).append(":")
+                .append(String.format("%02d", gCalInstance.getSecOfMin(time))).append(".")
+                .append(String.format("%03d", gCalInstance.getMillisOfSec(time))).append("Z");
+
         ps.print("\")");
     }
+    
+    public void printString(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        int time = AInt32SerializerDeserializer.getInt(b, s + 1);
 
-    final static void printTime(int time, int timezone, PrintStream ps) throws AlgebricksException {
-        int msec = time * 20 % 1000;
-        int sec = time * 20 % 60000 / 1000;
-        int min = time * 20 % 3600000 / 60000;
-        int hour = time * 20 % 216000000 / 3600000;
-        try {
-            if (hour < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(hour, ps);
-            ps.print(":");
-            if (min < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(min, ps);
-            ps.print(":");
-            if (sec < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(sec, ps);
-            ps.print(":");
-            if (msec < 100) {
-                ps.print("0");
-            }
-            if (msec < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(msec, ps);
-            ps.print(timezone >= 0 ? "+" : "-");
-            int t1 = Math.abs(timezone / 4);
-            if (t1 < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(t1, ps);
-            ps.print(":");
-            int t2 = timezone % 4 * ((timezone >= 0) ? 15 : -15);
-            if (t2 < 10) {
-                ps.print("0");
-            }
-            WriteValueTools.writeInt(t2, ps);
-        } catch (IOException e) {
-            throw new AlgebricksException(e);
-        }
+        ps.append(String.format("%02d", gCalInstance.getHourOfDay(time))).append(":")
+                .append(String.format("%02d", gCalInstance.getMinOfHour(time))).append(":")
+                .append(String.format("%02d", gCalInstance.getSecOfMin(time))).append(".")
+                .append(String.format("%03d", gCalInstance.getMillisOfSec(time))).append("Z");
     }
+
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinterFactory.java
index 3a50873..afafb89 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ATimePrinterFactory.java
@@ -1,9 +1,7 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.printers;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-
-
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class ATimePrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnionPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnionPrinterFactory.java
index 8d96061..a72d7ea 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnionPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnionPrinterFactory.java
@@ -7,9 +7,9 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AUnionPrinterFactory implements IPrinterFactory {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnorderedlistPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnorderedlistPrinterFactory.java
index 55f8d6c..f779919 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnorderedlistPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AUnorderedlistPrinterFactory.java
@@ -2,22 +2,21 @@
 
 import java.io.PrintStream;
 
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlPrinterFactoryProvider;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.APrintVisitor;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinter;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
 public class AUnorderedlistPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
-
     private AUnorderedListType unorderedlistType;
 
     public AUnorderedlistPrinterFactory(AUnorderedListType unorderedlistType) {
@@ -27,77 +26,29 @@
     @Override
     public IPrinter createPrinter() {
 
-        return new IPrinter() {
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = unorderedlistType == null ? DefaultOpenFieldType
+                .getDefaultOpenFieldType(ATypeTag.UNORDEREDLIST) : unorderedlistType;
+        final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
 
-            private IPrinter itemPrinter;
-            private IAType itemType;
-            private ATypeTag itemTag;
-            private boolean typedItemList = false;
+        return new IPrinter() {
 
             @Override
             public void init() throws AlgebricksException {
-
-                if (unorderedlistType != null && unorderedlistType.getItemType() != null) {
-                    itemType = unorderedlistType.getItemType();
-                    if (itemType.getTypeTag() == ATypeTag.ANY) {
-                        this.typedItemList = false;
-                        this.itemPrinter = AObjectPrinterFactory.INSTANCE.createPrinter();
-                    } else {
-                        this.typedItemList = true;
-                        itemPrinter = AqlPrinterFactoryProvider.INSTANCE.getPrinterFactory(itemType).createPrinter();
-                        itemTag = unorderedlistType.getItemType().getTypeTag();
-                    }
-                } else {
-                    this.typedItemList = false;
-                    this.itemPrinter = AObjectPrinterFactory.INSTANCE.createPrinter();
-                }
-                itemPrinter.init();
+                arg.second = inputType.getTypeTag();
             }
 
             @Override
-            public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
-                ps.print("{{ ");
-                int numberOfitems = AInt32SerializerDeserializer.getInt(b, s + 6);
-                int itemOffset;
-                if (typedItemList) {
-                    switch (itemTag) {
-                        case STRING:
-                        case RECORD:
-                        case ORDEREDLIST:
-                        case UNORDEREDLIST:
-                        case ANY:
-                            itemOffset = s + 10 + (numberOfitems * 4);
-                            break;
-                        default:
-                            itemOffset = s + 10;
-                    }
-                } else
-                    itemOffset = s + 10 + (numberOfitems * 4);
-                int itemLength;
-
+            public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
                 try {
-                    if (typedItemList) {
-                        for (int i = 0; i < numberOfitems; i++) {
-                            itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, false);
-                            itemPrinter.print(b, itemOffset - 1, itemLength, ps);
-                            itemOffset += itemLength;
-                            if (i + 1 < numberOfitems)
-                                ps.print(", ");
-                        }
-                    } else {
-                        for (int i = 0; i < numberOfitems; i++) {
-                            itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[itemOffset]);
-                            itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, true) + 1;
-                            itemPrinter.print(b, itemOffset, itemLength, ps);
-                            itemOffset += itemLength;
-                            if (i + 1 < numberOfitems)
-                                ps.print(", ");
-                        }
-                    }
-                } catch (AsterixException e) {
-                    throw new AlgebricksException(e);
+                    listAccessor.set(b, start, l);
+                    arg.first = ps;
+                    listAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
                 }
-                ps.print(" }}");
             }
         };
     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinter.java
new file mode 100644
index 0000000..0ae242c
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinter.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ABooleanSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ABooleanPrinter implements IPrinter {
+
+    public static final ABooleanPrinter INSTANCE = new ABooleanPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print(ABooleanSerializerDeserializer.getBoolean(b, s + 1));
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinterFactory.java
new file mode 100644
index 0000000..e18072a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ABooleanPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ABooleanPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ABooleanPrinterFactory INSTANCE = new ABooleanPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ABooleanPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinter.java
new file mode 100644
index 0000000..7799aaf
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinter.java
@@ -0,0 +1,28 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ACirclePrinter implements IPrinter {
+
+    public static final ACirclePrinter INSTANCE = new ACirclePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("{ circle: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+        ps.print(", { point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 9));
+        ps.print(",");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 17));
+        ps.print("]}]}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinterFactory.java
new file mode 100644
index 0000000..e406a23
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ACirclePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ACirclePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ACirclePrinterFactory INSTANCE = new ACirclePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ACirclePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinter.java
new file mode 100644
index 0000000..0486cf1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinter.java
@@ -0,0 +1,27 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ADatePrinter implements IPrinter {
+
+    private static long CHRONON_OF_DAY = 24 * 60 * 60 * 1000;
+    public static final ADatePrinter INSTANCE = new ADatePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        long chrononTime = AInt32SerializerDeserializer.getInt(b, s + 1) * CHRONON_OF_DAY;
+
+        ps.print("{ date: ");
+        ps.print(chrononTime);
+        ps.print("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinterFactory.java
new file mode 100644
index 0000000..f60a25e
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADatePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ADatePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ADatePrinterFactory INSTANCE = new ADatePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ADatePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinter.java
new file mode 100644
index 0000000..4fc3589
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinter.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ADateTimePrinter implements IPrinter {
+
+    public static final ADateTimePrinter INSTANCE = new ADateTimePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        long chrononTime = AInt64SerializerDeserializer.getLong(b, s + 1);
+
+        ps.print("{ datetime: ");
+        ps.print(chrononTime);
+        ps.print("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinterFactory.java
new file mode 100644
index 0000000..851fb8a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADateTimePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ADateTimePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ADateTimePrinterFactory INSTANCE = new ADateTimePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ADateTimePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinter.java
new file mode 100644
index 0000000..2b977a5
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinter.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ADoublePrinter implements IPrinter {
+
+    public static final ADoublePrinter INSTANCE = new ADoublePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinterFactory.java
new file mode 100644
index 0000000..1fdb7d7
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADoublePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ADoublePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ADoublePrinterFactory INSTANCE = new ADoublePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ADoublePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinter.java
new file mode 100644
index 0000000..877c00e
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinter.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ADurationPrinter implements IPrinter {
+
+    public static final ADurationPrinter INSTANCE = new ADurationPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        int months = AInt32SerializerDeserializer.getInt(b, s + 1);
+        long milliseconds = AInt64SerializerDeserializer.getLong(b, s + 5);
+
+        ps.print("{ duration: {");
+        ps.print("months: ");
+        ps.print(months);
+        ps.print("millis: ");
+        ps.print(milliseconds);
+        ps.print("}}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinterFactory.java
new file mode 100644
index 0000000..c0b68db
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ADurationPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ADurationPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ADurationPrinterFactory INSTANCE = new ADurationPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ADurationPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinter.java
new file mode 100644
index 0000000..a941043
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinter.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AFloatPrinter implements IPrinter {
+
+    public static final AFloatPrinter INSTANCE = new AFloatPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print(AFloatSerializerDeserializer.getFloat(b, s + 1));
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java
new file mode 100644
index 0000000..5285daa
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+
+public class AFloatPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AFloatPrinterFactory INSTANCE = new AFloatPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AFloatPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16Printer.java
new file mode 100644
index 0000000..03dfcdc
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16Printer.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AInt16Printer implements IPrinter {
+    public static final AInt16Printer INSTANCE = new AInt16Printer();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        short i = AInt16SerializerDeserializer.getShort(b, s + 1);
+
+        ps.println("{ int16: ");
+        ps.println(i);
+        ps.println("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java
new file mode 100644
index 0000000..c890b19
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+
+public class AInt16PrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AInt16PrinterFactory INSTANCE = new AInt16PrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AInt16Printer.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32Printer.java
new file mode 100644
index 0000000..9c3cf42
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32Printer.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AInt32Printer implements IPrinter {
+
+    public static final AInt32Printer INSTANCE = new AInt32Printer();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        int d = AInt32SerializerDeserializer.getInt(b, s + 1);
+
+        ps.println("{ int32: ");
+        ps.println(d);
+        ps.println("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java
new file mode 100644
index 0000000..6026424
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+
+public class AInt32PrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AInt32PrinterFactory INSTANCE = new AInt32PrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AInt32Printer.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64Printer.java
new file mode 100644
index 0000000..afb690e
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64Printer.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AInt64Printer implements IPrinter {
+    public static final AInt64Printer INSTANCE = new AInt64Printer();
+
+    @Override
+    public void init() {
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        long d = AInt64SerializerDeserializer.getLong(b, s + 1);
+        ps.println("{ int64: ");
+        ps.println(d);
+        ps.println("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64PrinterFactory.java
new file mode 100644
index 0000000..e7e59a7
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt64PrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AInt64PrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AInt64PrinterFactory INSTANCE = new AInt64PrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AInt64Printer.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8Printer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8Printer.java
new file mode 100644
index 0000000..9890b2e
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8Printer.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AInt8Printer implements IPrinter {
+
+    public static final AInt8Printer INSTANCE = new AInt8Printer();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        byte o = AInt8SerializerDeserializer.getByte(b, s + 1);
+
+        ps.println("{ int8: ");
+        ps.println(o);
+        ps.println("}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java
new file mode 100644
index 0000000..c9b1155
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+
+public class AInt8PrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AInt8PrinterFactory INSTANCE = new AInt8PrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AInt8Printer.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinter.java
new file mode 100644
index 0000000..c088904
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinter.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ALinePrinter implements IPrinter {
+
+    public static final ALinePrinter INSTANCE = new ALinePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("{ line: ");
+        ps.print(" [{ point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 9));
+        ps.print("]}, { point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 17));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 25));
+        ps.print("]}]}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinterFactory.java
new file mode 100644
index 0000000..072bdd0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ALinePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ALinePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ALinePrinterFactory INSTANCE = new ALinePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ALinePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinter.java
new file mode 100644
index 0000000..a80eec6
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinter.java
@@ -0,0 +1,21 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ANullPrinter implements IPrinter {
+
+    public static final ANullPrinter INSTANCE = new ANullPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("null");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java
new file mode 100644
index 0000000..3184260
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java
@@ -0,0 +1,18 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+
+public class ANullPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ANullPrinterFactory INSTANCE = new ANullPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ANullPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullableFieldPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullableFieldPrinterFactory.java
new file mode 100644
index 0000000..e2631b0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullableFieldPrinterFactory.java
@@ -0,0 +1,49 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlJSONPrinterFactoryProvider;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ANullableFieldPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private AUnionType unionType;
+
+    public ANullableFieldPrinterFactory(AUnionType unionType) {
+        this.unionType = unionType;
+    }
+
+    @Override
+    public IPrinter createPrinter() {
+        return new IPrinter() {
+            private IPrinter nullPrinter;
+            private IPrinter fieldPrinter;
+
+            @Override
+            public void init() throws AlgebricksException {
+                nullPrinter = (AqlJSONPrinterFactoryProvider.INSTANCE.getPrinterFactory(BuiltinType.ANULL))
+                        .createPrinter();
+                fieldPrinter = (AqlJSONPrinterFactoryProvider.INSTANCE.getPrinterFactory(unionType.getUnionList()
+                        .get(1))).createPrinter();
+            }
+
+            @Override
+            public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+                fieldPrinter.init();
+                if (b[s] == ATypeTag.NULL.serialize())
+                    nullPrinter.print(b, s, l, ps);
+                else
+                    fieldPrinter.print(b, s, l, ps);
+            }
+
+        };
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinter.java
new file mode 100644
index 0000000..29c4ee1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinter.java
@@ -0,0 +1,120 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class AObjectPrinter implements IPrinter {
+
+    public static final AObjectPrinter INSTANCE = new AObjectPrinter();
+
+    private IPrinter recordPrinter = new ARecordPrinterFactory(null).createPrinter();
+    private IPrinter orderedlistPrinter = new AOrderedlistPrinterFactory(null).createPrinter();
+    private IPrinter unorderedListPrinter = new AUnorderedlistPrinterFactory(null).createPrinter();
+
+    @Override
+    public void init() throws AlgebricksException {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[s]);
+        switch (typeTag) {
+            case INT8: {
+                AInt8Printer.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case INT16: {
+                AInt16Printer.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case INT32: {
+                AInt32Printer.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case INT64: {
+                AInt64Printer.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case NULL: {
+                ANullPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case BOOLEAN: {
+                ABooleanPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case FLOAT: {
+                AFloatPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case DOUBLE: {
+                ADoublePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case DATE: {
+                ADatePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case TIME: {
+                ATimePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case DATETIME: {
+                ADateTimePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case DURATION: {
+                ADurationPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case POINT: {
+                APointPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case POINT3D: {
+                APoint3DPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case LINE: {
+                ALinePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case POLYGON: {
+                APolygonPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case CIRCLE: {
+                ACirclePrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case STRING: {
+                AStringPrinter.INSTANCE.print(b, s, l, ps);
+                break;
+            }
+            case RECORD: {
+                this.recordPrinter.init();
+                recordPrinter.print(b, s, l, ps);
+                break;
+            }
+            case ORDEREDLIST: {
+                this.orderedlistPrinter.init();
+                orderedlistPrinter.print(b, s, l, ps);
+                break;
+            }
+            case UNORDEREDLIST: {
+                this.unorderedListPrinter.init();
+                unorderedListPrinter.print(b, s, l, ps);
+                break;
+            }
+            default: {
+                throw new NotImplementedException("No printer for type " + typeTag);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinterFactory.java
new file mode 100644
index 0000000..1c2ba77
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AObjectPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AObjectPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AObjectPrinterFactory INSTANCE = new AObjectPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AObjectPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AOrderedlistPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AOrderedlistPrinterFactory.java
new file mode 100644
index 0000000..b95a072
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AOrderedlistPrinterFactory.java
@@ -0,0 +1,55 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.json.APrintVisitor;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AOrderedlistPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    private AOrderedListType orderedlistType;
+
+    public AOrderedlistPrinterFactory(AOrderedListType orderedlistType) {
+        this.orderedlistType = orderedlistType;
+    }
+
+    @Override
+    public IPrinter createPrinter() {
+
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = orderedlistType == null ? DefaultOpenFieldType
+                .getDefaultOpenFieldType(ATypeTag.ORDEREDLIST) : orderedlistType;
+        final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
+
+        return new IPrinter() {
+
+            @Override
+            public void init() throws AlgebricksException {
+                arg.second = inputType.getTypeTag();
+            }
+
+            @Override
+            public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
+                try {
+                    listAccessor.set(b, start, l);
+                    arg.first = ps;
+                    listAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
+                }
+            }
+        };
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinter.java
new file mode 100644
index 0000000..873ee61
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinter.java
@@ -0,0 +1,28 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class APoint3DPrinter implements IPrinter {
+
+    public static final APoint3DPrinter INSTANCE = new APoint3DPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("{ point3d: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 9));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 17));
+        ps.print("]}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinterFactory.java
new file mode 100644
index 0000000..7105ad3
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APoint3DPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class APoint3DPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final APoint3DPrinterFactory INSTANCE = new APoint3DPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return APoint3DPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinter.java
new file mode 100644
index 0000000..aad4758
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinter.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class APointPrinter implements IPrinter {
+
+    public static final APointPrinter INSTANCE = new APointPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("{ point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 9));
+        ps.print("]}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java
new file mode 100644
index 0000000..36a9bf3
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java
@@ -0,0 +1,17 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+
+public class APointPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final APointPrinterFactory INSTANCE = new APointPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return APointPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinter.java
new file mode 100644
index 0000000..23eef9d
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinter.java
@@ -0,0 +1,42 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class APolygonPrinter implements IPrinter {
+
+    public static final APolygonPrinter INSTANCE = new APolygonPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        short numberOfPoints = AInt16SerializerDeserializer.getShort(b, s + 1);
+        s += 3;
+
+        ps.print("{ polygon: [");
+
+        for (int i = 0; i < numberOfPoints; i++) {
+            if (i > 0)
+                ps.print(",");
+
+            ps.print("{ point: [");
+            ps.print(ADoubleSerializerDeserializer.getDouble(b, s));
+            ps.print(",");
+            ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 8));
+            ps.print("]}");
+
+            s += 16;
+        }
+
+        ps.print("]}");
+
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinterFactory.java
new file mode 100644
index 0000000..74c54d0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APolygonPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class APolygonPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final APolygonPrinterFactory INSTANCE = new APolygonPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return APolygonPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARecordPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARecordPrinterFactory.java
new file mode 100644
index 0000000..ca0597c
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARecordPrinterFactory.java
@@ -0,0 +1,55 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.json.APrintVisitor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ARecordPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final ARecordType recType;
+
+    public ARecordPrinterFactory(ARecordType recType) {
+        this.recType = recType;
+    }
+
+    @Override
+    public IPrinter createPrinter() {
+
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = recType == null ? DefaultOpenFieldType.getDefaultOpenFieldType(ATypeTag.RECORD)
+                : recType;
+        final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
+
+        return new IPrinter() {
+
+            @Override
+            public void init() throws AlgebricksException {
+                arg.second = inputType.getTypeTag();
+            }
+
+            @Override
+            public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
+                try {
+                    recAccessor.set(b, start, l);
+                    arg.first = ps;
+                    recAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
+                }
+            }
+        };
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinter.java
new file mode 100644
index 0000000..e54b73b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinter.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ARectanglePrinter implements IPrinter {
+
+    public static final ARectanglePrinter INSTANCE = new ARectanglePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        ps.print("{ rectangle: [");
+        ps.print("{ point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 1));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 9));
+        ps.print("]}, { point: [");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 17));
+        ps.print(", ");
+        ps.print(ADoubleSerializerDeserializer.getDouble(b, s + 25));
+        ps.print("]}]}");
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinterFactory.java
new file mode 100644
index 0000000..51f6f21
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ARectanglePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ARectanglePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ARectanglePrinterFactory INSTANCE = new ARectanglePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ARectanglePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinter.java
new file mode 100644
index 0000000..c7828fc
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinter.java
@@ -0,0 +1,27 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.IOException;
+import java.io.PrintStream;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
+
+public class AStringPrinter implements IPrinter {
+
+    public static final AStringPrinter INSTANCE = new AStringPrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        try {
+            WriteValueTools.writeUTF8String(b, s + 1, l - 1, ps);
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinterFactory.java
new file mode 100644
index 0000000..9d76f35
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AStringPrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AStringPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final AStringPrinterFactory INSTANCE = new AStringPrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return AStringPrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinter.java
new file mode 100644
index 0000000..53fad9f
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinter.java
@@ -0,0 +1,27 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+
+public class ATimePrinter implements IPrinter {
+
+    public static final ATimePrinter INSTANCE = new ATimePrinter();
+
+    @Override
+    public void init() {
+
+    }
+
+    @Override
+    public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+        int time = AInt32SerializerDeserializer.getInt(b, s + 1);
+
+        ps.print("{ time: ");
+        ps.print(time);
+        ps.print("}");
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinterFactory.java
new file mode 100644
index 0000000..8f05c69
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ATimePrinterFactory.java
@@ -0,0 +1,16 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class ATimePrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static final ATimePrinterFactory INSTANCE = new ATimePrinterFactory();
+
+    @Override
+    public IPrinter createPrinter() {
+        return ATimePrinter.INSTANCE;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java
new file mode 100644
index 0000000..393ad63
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java
@@ -0,0 +1,58 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+import java.util.List;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlJSONPrinterFactoryProvider;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AUnionPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private AUnionType unionType;
+
+    public AUnionPrinterFactory(AUnionType unionType) {
+        this.unionType = unionType;
+    }
+
+    @Override
+    public IPrinter createPrinter() {
+
+        return new IPrinter() {
+
+            private IPrinter[] printers;
+            private List<IAType> unionList;
+
+            @Override
+            public void init() throws AlgebricksException {
+                unionList = unionType.getUnionList();
+                printers = new IPrinter[unionType.getUnionList().size()];
+                for (int i = 0; i < printers.length; i++) {
+                    printers[i] = (AqlJSONPrinterFactoryProvider.INSTANCE
+                            .getPrinterFactory(unionType.getUnionList().get(i))).createPrinter();
+                    printers[i].init();
+                }
+            }
+
+            @Override
+            public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException {
+                ATypeTag tag = unionList.get(b[s + 1]).getTypeTag();
+                if (tag == ATypeTag.UNION)
+                    printers[b[s + 1]].print(b, s + 1, l, ps);
+                else {
+                    if (tag == ATypeTag.ANY)
+                        printers[b[s + 1]].print(b, s + 2, l, ps);
+                    else
+                        printers[b[s + 1]].print(b, s + 1, l, ps);
+                }
+            }
+        };
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnorderedlistPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnorderedlistPrinterFactory.java
new file mode 100644
index 0000000..9e1bdda
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnorderedlistPrinterFactory.java
@@ -0,0 +1,55 @@
+package edu.uci.ics.asterix.dataflow.data.nontagged.printers.json;
+
+import java.io.PrintStream;
+
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.json.APrintVisitor;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.data.IPrinter;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+
+public class AUnorderedlistPrinterFactory implements IPrinterFactory {
+
+    private static final long serialVersionUID = 1L;
+    private AUnorderedListType unorderedlistType;
+
+    public AUnorderedlistPrinterFactory(AUnorderedListType unorderedlistType) {
+        this.unorderedlistType = unorderedlistType;
+    }
+
+    @Override
+    public IPrinter createPrinter() {
+
+        PointableAllocator allocator = new PointableAllocator();
+        final IAType inputType = unorderedlistType == null ? DefaultOpenFieldType
+                .getDefaultOpenFieldType(ATypeTag.UNORDEREDLIST) : unorderedlistType;
+        final IVisitablePointable listAccessor = allocator.allocateListValue(inputType);
+        final APrintVisitor printVisitor = new APrintVisitor();
+        final Pair<PrintStream, ATypeTag> arg = new Pair<PrintStream, ATypeTag>(null, null);
+
+        return new IPrinter() {
+
+            @Override
+            public void init() throws AlgebricksException {
+                arg.second = inputType.getTypeTag();
+            }
+
+            @Override
+            public void print(byte[] b, int start, int l, PrintStream ps) throws AlgebricksException {
+                try {
+                    listAccessor.set(b, start, l);
+                    arg.first = ps;
+                    listAccessor.accept(printVisitor, arg);
+                } catch (Exception ioe) {
+                    throw new AlgebricksException(ioe);
+                }
+            }
+        };
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ABooleanSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ABooleanSerializerDeserializer.java
index 474ed85..de95bba 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ABooleanSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ABooleanSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ACircleSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ACircleSerializerDeserializer.java
index bbf9fbb..02bb281 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ACircleSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ACircleSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateSerializerDeserializer.java
index 6a0e8cd..5f68522 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
@@ -7,6 +21,8 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADate;
 import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -14,15 +30,11 @@
 public class ADateSerializerDeserializer implements ISerializerDeserializer<ADate> {
 
     private static final long serialVersionUID = 1L;
-    private short year;
-    private byte monthAndDay;
 
     public static final ADateSerializerDeserializer INSTANCE = new ADateSerializerDeserializer();
     @SuppressWarnings("unchecked")
-    private static ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
+    private static final ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ADATE);
-    private static AMutableDate aDate = new AMutableDate(0, 0, 0, 0);
-    private static String errorMessage = " can not be an instance of date";
 
     private ADateSerializerDeserializer() {
     }
@@ -30,10 +42,7 @@
     @Override
     public ADate deserialize(DataInput in) throws HyracksDataException {
         try {
-            year = in.readShort();
-            monthAndDay = in.readByte();
-            return new ADate(year >> 1, (year & 0x0001) * 8 + ((monthAndDay >> 5) & 0x07), monthAndDay & 0x1f,
-                    in.readByte());
+            return new ADate(in.readInt());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
@@ -42,60 +51,32 @@
     @Override
     public void serialize(ADate instance, DataOutput out) throws HyracksDataException {
         try {
-            out.writeByte((byte) ((instance.getYear() << 1) >> 8));
-            out.writeByte((byte) ((byte) ((instance.getYear() << 1) & 0x00ff) + (byte) (instance.getMonth() >> 3)));
-            out.writeByte((byte) (((byte) (instance.getMonth() << 5)) | ((byte) instance.getDay())));
-            out.writeByte((byte) instance.getTimeZone());
+            out.writeInt(instance.getChrononTimeInDays());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
     }
 
     public static void parse(String date, DataOutput out) throws HyracksDataException {
-        int offset = 0;
-        boolean positive = true;
-        byte timezonePart = 0;
-        if (date.charAt(0) == '-') {
-            positive = false;
-            offset++;
+        AMutableDate aDate = new AMutableDate(0);
+
+        long chrononTimeInMs = 0;
+        try {
+            chrononTimeInMs = ADateParserFactory.parseDatePart(date, 0, date.length());
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
         }
 
-        if (date.charAt(offset + 4) != '-' || date.charAt(offset + 7) != '-')
-            throw new HyracksDataException(date + errorMessage);
-        short year = Short.parseShort(date.substring(offset, offset + 4));
-        short month = Short.parseShort(date.substring(offset + 5, offset + 7));
-        short day = Short.parseShort(date.substring(offset + 8, offset + 10));
-        short hour, minute;
-        if (year < 0 || year > 9999 || month < 0 || month > 12 || day < 0 || day > 31)
-            throw new HyracksDataException(date + errorMessage);
-
-        offset += 10;
-
-        if (date.length() > offset) {
-            if (date.charAt(offset) == 'Z')
-                timezonePart = 0;
-            else {
-                if ((date.charAt(offset) != '+' && date.charAt(offset) != '-') || (date.charAt(offset + 3) != ':'))
-                    throw new HyracksDataException(date + errorMessage);
-
-                hour = Short.parseShort(date.substring(offset + 1, offset + 3));
-                minute = Short.parseShort(date.substring(offset + 4, offset + 6));
-
-                if (hour < 0 || hour > 24 || (hour == 24 && minute != 0)
-                        || (minute != 0 && minute != 15 && minute != 30 && minute != 45))
-                    throw new HyracksDataException(date + errorMessage);
-
-                if (date.charAt(offset) == '-')
-                    timezonePart = (byte) -((hour * 4) + minute / 15);
-                else
-                    timezonePart = (byte) ((hour * 4) + minute / 15);
-            }
-
+        short temp = 0;
+        if (chrononTimeInMs < 0 && chrononTimeInMs % GregorianCalendarSystem.CHRONON_OF_DAY != 0) {
+            temp = 1;
         }
-        if (!positive)
-            year *= -1;
-        aDate.setValue(year, month, day, timezonePart);
+        aDate.setValue((int) (chrononTimeInMs / GregorianCalendarSystem.CHRONON_OF_DAY) - temp);
+
         dateSerde.serialize(aDate, out);
     }
 
+    public static int getChronon(byte[] byteArray, int offset) {
+        return AInt32SerializerDeserializer.getInt(byteArray, offset);
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
index c22da77..34c3a5b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
@@ -7,7 +21,10 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADateTime;
 import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
@@ -17,15 +34,10 @@
 
     public static final ADateTimeSerializerDeserializer INSTANCE = new ADateTimeSerializerDeserializer();
     @SuppressWarnings("unchecked")
-    private static ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
+    private static final ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ADATETIME);
-    private static AMutableDateTime aDateTime = new AMutableDateTime(0, 0, 0, 0, 0, 0, 0, 0, 0);
-    private static String errorMessage = " can not be an instance of datetime";
-
-    private int time;
-    private byte timezone;
-    private short year;
-    private byte monthAndDay;
+    private static final AMutableDateTime aDateTime = new AMutableDateTime(0L);
+    private static final String errorMessage = "This can not be an instance of datetime";
 
     private ADateTimeSerializerDeserializer() {
     }
@@ -33,14 +45,7 @@
     @Override
     public ADateTime deserialize(DataInput in) throws HyracksDataException {
         try {
-            year = in.readShort();
-            monthAndDay = in.readByte();
-            timezone = in.readByte();
-            time = in.readInt();
-
-            return new ADateTime(year >> 1, (year & 0x0001) * 8 + ((monthAndDay >> 5) & 0x07), monthAndDay & 0x1f,
-                    (short) ((time) * 20 % 216000000 / 3600000), (short) ((time) * 20 % 3600000 / 60000),
-                    (short) ((time) * 20 % 60000 / 1000), (short) ((time) * 20 % 1000), (short) 0, timezone);
+            return new ADateTime(in.readLong());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
@@ -49,92 +54,41 @@
     @Override
     public void serialize(ADateTime instance, DataOutput out) throws HyracksDataException {
         try {
-            out.writeByte((byte) ((instance.getYear() << 1) >> 8));
-            out.writeByte((byte) ((byte) ((instance.getYear() << 1) & 0x00ff) + (byte) (instance.getMonth() >> 3)));
-            out.writeByte((byte) ((instance.getMonth() << 5) | (instance.getDay())));
-            out.writeByte((byte) instance.getTimeZone());
-            out.writeInt((((((instance.getHours() * 60) + instance.getMinutes()) * 60) + instance.getSeconds()) * 1000 + instance
-                    .getMilliseconds()) / 20);
+            out.writeLong(instance.getChrononTime());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
     }
 
     public static void parse(String datetime, DataOutput out) throws HyracksDataException {
-        boolean positive = true;
-        int offset = 0;
-        byte timezonePart = 0;
 
-        if (datetime.charAt(offset) == '-') {
-            offset++;
-            positive = false;
-        }
+        long chrononTimeInMs = 0;
+        try {
 
-        if (datetime.charAt(offset + 4) != '-' || datetime.charAt(offset + 7) != '-')
-            throw new HyracksDataException(datetime + errorMessage);
+            // +1 if it is negative (-)
+            short timeOffset = (short) ((datetime.charAt(0) == '-') ? 1 : 0);
 
-        short year = Short.parseShort(datetime.substring(offset, offset + 4));
-        short month = Short.parseShort(datetime.substring(offset + 5, offset + 7));
-        short day = Short.parseShort(datetime.substring(offset + 8, offset + 10));
-
-        if (year < 0 || year > 9999 || month < 0 || month > 12 || day < 0 || day > 31)
-            throw new HyracksDataException(datetime + errorMessage);
-
-        if (!positive)
-            year *= -1;
-
-        if (datetime.charAt(offset + 10) != 'T')
-            throw new HyracksDataException(datetime + errorMessage);
-
-        offset += 11;
-
-        if (datetime.charAt(offset + 2) != ':' || datetime.charAt(offset + 5) != ':')
-            throw new HyracksDataException(datetime + errorMessage);
-
-        short hour = Short.parseShort(datetime.substring(offset, offset + 2));
-        short minute = Short.parseShort(datetime.substring(offset + 3, offset + 5));
-        short second = Short.parseShort(datetime.substring(offset + 6, offset + 8));
-        short msecond = 0;
-
-        if (datetime.length() > offset + 8 && datetime.charAt(offset + 8) == ':') {
-            msecond = Short.parseShort(datetime.substring(offset + 9, offset + 12));
-            if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59 || msecond < 0
-                    || msecond > 999 || (hour == 24 && (minute != 0 || second != 0 || msecond != 0)))
-                throw new HyracksDataException(datetime + errorMessage);
-            offset += 12;
-        } else {
-            if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                    || (hour == 24 && (minute != 0 || second != 0)))
-                throw new HyracksDataException(datetime + errorMessage);
-            offset += 8;
-        }
-
-        short timezoneHour = 0, timezoneMinute = 0;
-        if (datetime.length() > offset) {
-            if (datetime.charAt(offset) == 'Z')
-                timezonePart = 0;
-            else {
-                if ((datetime.charAt(offset) != '+' && datetime.charAt(offset) != '-')
-                        || (datetime.charAt(offset + 3) != ':'))
-                    throw new HyracksDataException(datetime + errorMessage);
-
-                timezoneHour = Short.parseShort(datetime.substring(offset + 1, offset + 3));
-                timezoneMinute = Short.parseShort(datetime.substring(offset + 4, offset + 6));
-
-                if (timezoneHour < 0
-                        || timezoneHour > 24
-                        || (timezoneHour == 24 && timezoneMinute != 0)
-                        || (timezoneMinute != 0 && timezoneMinute != 15 && timezoneMinute != 30 && timezoneMinute != 45))
-                    throw new HyracksDataException(datetime + errorMessage);
-
-                if (datetime.charAt(offset) == '-')
-                    timezonePart = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
-                else
-                    timezonePart = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
+            timeOffset += 8;
+            
+            if(datetime.charAt(timeOffset) != 'T'){
+                timeOffset += 2;
+                if(datetime.charAt(timeOffset) != 'T'){
+                    throw new AlgebricksException(errorMessage + ": missing T");
+                }
             }
 
+            chrononTimeInMs = ADateParserFactory.parseDatePart(datetime, 0, timeOffset);
+
+            chrononTimeInMs += ATimeParserFactory.parseTimePart(datetime, timeOffset + 1, datetime.length() - timeOffset - 1);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
         }
-        aDateTime.setValue(year, month, day, hour, minute, second, msecond, 0, timezonePart);
+        aDateTime.setValue(chrononTimeInMs);
+
         datetimeSerde.serialize(aDateTime, out);
     }
+
+    public static long getChronon(byte[] data, int offset) {
+        return AInt64SerializerDeserializer.getLong(data, offset);
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADoubleSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADoubleSerializerDeserializer.java
index 0fdd657..115b2ec 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADoubleSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADoubleSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADurationSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADurationSerializerDeserializer.java
index 134eed6..6930f60 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADurationSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADurationSerializerDeserializer.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADuration;
 import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -16,12 +17,10 @@
     private static final long serialVersionUID = 1L;
 
     public static final ADurationSerializerDeserializer INSTANCE = new ADurationSerializerDeserializer();
-
-    private static AMutableDuration aDuration = new AMutableDuration(0, 0);
     @SuppressWarnings("unchecked")
-    private static ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+    private static final ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ADURATION);
-    private static String errorMessage = " can not be an instance of duration";
+    private static final AMutableDuration aDuration = new AMutableDuration(0, 0);
 
     private ADurationSerializerDeserializer() {
     }
@@ -29,7 +28,7 @@
     @Override
     public ADuration deserialize(DataInput in) throws HyracksDataException {
         try {
-            return new ADuration(in.readInt(), in.readInt());
+            return new ADuration(in.readInt(), in.readLong());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
@@ -39,7 +38,7 @@
     public void serialize(ADuration instance, DataOutput out) throws HyracksDataException {
         try {
             out.writeInt(instance.getMonths());
-            out.writeInt(instance.getSeconds());
+            out.writeLong(instance.getMilliseconds());
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
@@ -47,119 +46,32 @@
 
     public static void parse(String duration, DataOutput out) throws HyracksDataException {
         try {
-            boolean positive = true;
-            int offset = 0;
-            int value = 0, hour = 0, minute = 0, second = 0, year = 0, month = 0, day = 0;
-            boolean isYear = true, isMonth = true, isDay = true, isHour = true, isMinute = true, isSecond = true;
-            boolean isTime = false;
-            boolean timeItem = true;
-            if (duration.charAt(offset) == '-') {
-                offset++;
-                positive = false;
-            }
-
-            if (duration.charAt(offset++) != 'D')
-                throw new HyracksDataException(duration + errorMessage);
-
-            for (; offset < duration.length(); offset++) {
-                if (duration.charAt(offset) >= '0' && duration.charAt(offset) <= '9')
-                    value = value * 10 + duration.charAt(offset) - '0';
-                else {
-                    switch (duration.charAt(offset)) {
-                        case 'Y':
-                            if (isYear) {
-                                year = value;
-                                isYear = false;
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-                        case 'M':
-                            if (!isTime) {
-                                if (isMonth) {
-                                    if (value < 0 || value > 11)
-                                        throw new HyracksDataException(duration + errorMessage);
-                                    else {
-                                        month = value;
-                                        isMonth = false;
-                                    }
-                                } else
-                                    throw new HyracksDataException(duration + errorMessage);
-                            } else if (isMinute) {
-                                if (value < 0 || value > 59)
-                                    throw new HyracksDataException(duration + errorMessage);
-                                else {
-                                    minute = value;
-                                    isMinute = false;
-                                    timeItem = false;
-                                }
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-                        case 'D':
-                            if (isDay) {
-                                if (value < 0 || value > 30)
-                                    throw new HyracksDataException(duration + errorMessage);
-                                else {
-                                    day = value;
-                                    isDay = false;
-                                }
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-                        case 'T':
-                            if (!isTime) {
-                                isTime = true;
-                                timeItem = true;
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-
-                        case 'H':
-                            if (isHour) {
-                                if (value < 0 || value > 23)
-                                    throw new HyracksDataException(duration + errorMessage);
-                                else {
-                                    hour = value;
-                                    isHour = false;
-                                    timeItem = false;
-                                }
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-                        case 'S':
-                            if (isSecond) {
-                                if (value < 0 || value > 59)
-                                    throw new HyracksDataException(duration + errorMessage);
-                                else {
-                                    second = value;
-                                    isSecond = false;
-                                    timeItem = false;
-                                }
-                            } else
-                                throw new HyracksDataException(duration + errorMessage);
-                            break;
-                        default:
-                            throw new HyracksDataException(duration + errorMessage);
-
-                    }
-                    value = 0;
-                }
-            }
-
-            if (isTime && timeItem)
-                throw new HyracksDataException(duration + errorMessage);
-
-            if (isYear && isMonth && isDay && !isTime)
-                throw new HyracksDataException(duration + errorMessage);
-
-            if (positive)
-                aDuration.setValue(year * 12 + month, day * 24 * 3600 + 3600 * hour + 60 * minute + second);
-            else
-                aDuration.setValue(-1 * (year * 12 + month), -1
-                        * (day * 24 * 3600 + 3600 * hour + 60 * minute + second));
+            ADurationParserFactory.parseDuration(duration, 0, duration.length(), aDuration);
             durationSerde.serialize(aDuration, out);
-        } catch (HyracksDataException e) {
-            throw new HyracksDataException(duration + errorMessage);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
         }
     }
+
+    /**
+     * Get the year-month field of the duration as an integer number of days.
+     * 
+     * @param data
+     * @param offset
+     * @return
+     */
+    public static int getYearMonth(byte[] data, int offset) {
+        return AInt32SerializerDeserializer.getInt(data, offset);
+    }
+
+    /**
+     * Get the day-time field of the duration as an long integer number of milliseconds.
+     * 
+     * @param data
+     * @param offset
+     * @return
+     */
+    public static long getDayTime(byte[] data, int offset) {
+        return AInt64SerializerDeserializer.getLong(data, offset + 4);
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AIntervalSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AIntervalSerializerDeserializer.java
new file mode 100644
index 0000000..8c4def0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AIntervalSerializerDeserializer.java
@@ -0,0 +1,243 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class AIntervalSerializerDeserializer implements ISerializerDeserializer<AInterval> {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final AIntervalSerializerDeserializer INSTANCE = new AIntervalSerializerDeserializer();
+    @SuppressWarnings("unchecked")
+    private static final ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+    private static final AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+    private static final String errorMessage = "This can not be an instance of interval";
+
+    private AIntervalSerializerDeserializer() {
+    }
+
+    @Override
+    public AInterval deserialize(DataInput in) throws HyracksDataException {
+        try {
+            return new AInterval(in.readLong(), in.readLong(), in.readByte());
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+
+    }
+
+    @Override
+    public void serialize(AInterval instance, DataOutput out) throws HyracksDataException {
+        try {
+            out.writeLong(instance.getIntervalStart());
+            out.writeLong(instance.getIntervalEnd());
+            out.writeByte(instance.getIntervalType());
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    public static long getIntervalStart(byte[] data, int offset) {
+        return AInt64SerializerDeserializer.getLong(data, offset);
+    }
+
+    public static long getIntervalEnd(byte[] data, int offset) {
+        return AInt64SerializerDeserializer.getLong(data, offset + 8);
+    }
+
+    public static byte getIntervalTimeType(byte[] data, int offset) {
+        return data[offset + 8 * 2];
+    }
+
+    /**
+     * create an interval value from two given datetime instance.
+     * 
+     * @param interval
+     * @param out
+     * @throws HyracksDataException
+     */
+    public static void parseDatetime(String interval, DataOutput out) throws HyracksDataException {
+
+        long chrononTimeInMsStart = 0;
+        long chrononTimeInMsEnd = 0;
+        try {
+
+            // the starting point for parsing (so for the accessor)
+            int startOffset = 0;
+            int endOffset, timeSeperatorOffsetInDatetimeString;
+
+            // Get the index for the comma
+            int commaIndex = interval.indexOf(',');
+            if (commaIndex < 1) {
+                throw new AlgebricksException("comma is missing for a string of interval");
+            }
+
+            endOffset = commaIndex - 1;
+
+            timeSeperatorOffsetInDatetimeString = interval.indexOf('T');
+
+            if (timeSeperatorOffsetInDatetimeString < 0) {
+                throw new AlgebricksException(errorMessage + ": missing T for a datetime value.");
+            }
+
+            chrononTimeInMsStart = parseDatePart(interval, startOffset, timeSeperatorOffsetInDatetimeString - 1);
+
+            chrononTimeInMsStart += parseTimePart(interval, timeSeperatorOffsetInDatetimeString + 1, endOffset);
+
+            // Interval End
+            startOffset = commaIndex + 1;
+            endOffset = interval.length() - 1;
+
+            timeSeperatorOffsetInDatetimeString = interval.indexOf('T', startOffset);
+
+            if (timeSeperatorOffsetInDatetimeString < 0) {
+                throw new AlgebricksException(errorMessage + ": missing T for a datetime value.");
+            }
+
+            chrononTimeInMsEnd = parseDatePart(interval, startOffset, timeSeperatorOffsetInDatetimeString - 1);
+
+            chrononTimeInMsEnd += parseTimePart(interval, timeSeperatorOffsetInDatetimeString + 1, endOffset);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+
+        aInterval.setValue(chrononTimeInMsStart, chrononTimeInMsEnd, ATypeTag.DATETIME.serialize());
+
+        intervalSerde.serialize(aInterval, out);
+    }
+
+    public static void parseTime(String interval, DataOutput out) throws HyracksDataException {
+
+        long chrononTimeInMsStart = 0;
+        long chrononTimeInMsEnd = 0;
+        try {
+
+            int startOffset = 0;
+            int endOffset;
+
+            // Get the index for the comma
+            int commaIndex = interval.indexOf(',');
+            if (commaIndex < 0) {
+                throw new AlgebricksException("comma is missing for a string of interval");
+            }
+
+            endOffset = commaIndex - 1;
+
+            // Interval Start
+            chrononTimeInMsStart = parseTimePart(interval, startOffset, endOffset);
+
+            if (chrononTimeInMsStart < 0) {
+                chrononTimeInMsStart += GregorianCalendarSystem.CHRONON_OF_DAY;
+            }
+
+            // Interval End
+            startOffset = commaIndex + 1;
+            endOffset = interval.length() - 1;
+
+            chrononTimeInMsEnd = parseTimePart(interval, startOffset, endOffset);
+
+            if (chrononTimeInMsEnd < 0) {
+                chrononTimeInMsEnd += GregorianCalendarSystem.CHRONON_OF_DAY;
+            }
+
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+
+        aInterval.setValue(chrononTimeInMsStart, chrononTimeInMsEnd, ATypeTag.TIME.serialize());
+        intervalSerde.serialize(aInterval, out);
+    }
+
+    public static void parseDate(String interval, DataOutput out) throws HyracksDataException {
+
+        long chrononTimeInMsStart = 0;
+        long chrononTimeInMsEnd = 0;
+        try {
+
+            // the starting point for parsing (so for the accessor)
+            int startOffset = 0;
+            int endOffset;
+
+            // Get the index for the comma
+            int commaIndex = interval.indexOf(',');
+            if (commaIndex < 1) {
+                throw new AlgebricksException("comma is missing for a string of interval");
+            }
+
+            endOffset = commaIndex - 1;
+
+            chrononTimeInMsStart = parseDatePart(interval, startOffset, endOffset);
+
+            // Interval End
+            startOffset = commaIndex + 1;
+            endOffset = interval.length() - 1;
+
+            chrononTimeInMsEnd = parseDatePart(interval, startOffset, endOffset);
+
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+
+        aInterval.setValue((chrononTimeInMsStart / GregorianCalendarSystem.CHRONON_OF_DAY),
+                (chrononTimeInMsEnd / GregorianCalendarSystem.CHRONON_OF_DAY), ATypeTag.DATE.serialize());
+
+        intervalSerde.serialize(aInterval, out);
+    }
+
+    private static long parseDatePart(String interval, int startOffset, int endOffset) throws AlgebricksException,
+            HyracksDataException {
+
+        while (interval.charAt(endOffset) == '"' || interval.charAt(endOffset) == ' ') {
+            endOffset--;
+        }
+
+        while (interval.charAt(startOffset) == '"' || interval.charAt(startOffset) == ' ') {
+            startOffset++;
+        }
+
+        return ADateParserFactory.parseDatePart(interval, startOffset, endOffset - startOffset + 1);
+    }
+
+    private static int parseTimePart(String interval, int startOffset, int endOffset) throws AlgebricksException,
+            HyracksDataException {
+
+        while (interval.charAt(endOffset) == '"' || interval.charAt(endOffset) == ' ') {
+            endOffset--;
+        }
+
+        while (interval.charAt(startOffset) == '"' || interval.charAt(startOffset) == ' ') {
+            startOffset++;
+        }
+
+        return ATimeParserFactory.parseTimePart(interval, startOffset, endOffset - startOffset + 1);
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AObjectSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AObjectSerializerDeserializer.java
index e21f990..b5b7303 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AObjectSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AObjectSerializerDeserializer.java
@@ -15,6 +15,7 @@
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.AInt8;
+import edu.uci.ics.asterix.om.base.AInterval;
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AOrderedList;
@@ -28,7 +29,7 @@
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
@@ -84,6 +85,9 @@
             case DURATION: {
                 return ADurationSerializerDeserializer.INSTANCE.deserialize(in);
             }
+            case INTERVAL: {
+                return AIntervalSerializerDeserializer.INSTANCE.deserialize(in);
+            }
             case POINT: {
                 return APointSerializerDeserializer.INSTANCE.deserialize(in);
             }
@@ -108,9 +112,9 @@
             case UNORDEREDLIST: {
                 return AUnorderedListSerializerDeserializer.SCHEMALESS_INSTANCE.deserialize(in);
             }
-                // case TYPE: {
-                // return AUnorderedListBytesConverter.INSTANCE.deserialize(in);
-                // }
+            // case TYPE: {
+            // return AUnorderedListBytesConverter.INSTANCE.deserialize(in);
+            // }
             default: {
                 throw new NotImplementedException("No serializer/deserializer implemented for type " + typeTag + " .");
             }
@@ -179,6 +183,10 @@
                 ADurationSerializerDeserializer.INSTANCE.serialize((ADuration) instance, out);
                 break;
             }
+            case INTERVAL: {
+                AIntervalSerializerDeserializer.INSTANCE.serialize((AInterval) instance, out);
+                break;
+            }
             case POINT: {
                 APointSerializerDeserializer.INSTANCE.serialize((APoint) instance, out);
                 break;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AOrderedListSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AOrderedListSerializerDeserializer.java
index 3653d46..4d115d7 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AOrderedListSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AOrderedListSerializerDeserializer.java
@@ -5,7 +5,6 @@
 import java.io.IOException;
 import java.util.ArrayList;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -18,7 +17,7 @@
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class AOrderedListSerializerDeserializer implements ISerializerDeserializer<AOrderedList> {
 
@@ -26,9 +25,9 @@
     public static final AOrderedListSerializerDeserializer SCHEMALESS_INSTANCE = new AOrderedListSerializerDeserializer();
 
     private IAType itemType;
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer serializer;
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer deserializer;
     private AOrderedListType orderedlistType;
 
@@ -91,7 +90,7 @@
     @Override
     public void serialize(AOrderedList instance, DataOutput out) throws HyracksDataException {
         // TODO: schemaless ordered list serializer
-        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        OrderedListBuilder listBuilder = new OrderedListBuilder();
         listBuilder.reset(orderedlistType);
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         for (int i = 0; i < instance.size(); i++) {
@@ -120,7 +119,7 @@
 
     public static int getItemOffset(byte[] serOrderedList, int offset, int itemIndex) throws AsterixException {
         if (serOrderedList[offset] == ATypeTag.ORDEREDLIST.serialize()) {
-            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[1]);
+            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[offset + 1]);
             switch (typeTag) {
                 case STRING:
                 case RECORD:
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARecordSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARecordSerializerDeserializer.java
index fd6f6e2..a450f27 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARecordSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARecordSerializerDeserializer.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.dataflow.data.nontagged.serde;
 
 import java.io.DataInput;
@@ -6,6 +21,7 @@
 
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -17,14 +33,13 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class ARecordSerializerDeserializer implements ISerializerDeserializer<ARecord> {
     private static final long serialVersionUID = 1L;
@@ -34,9 +49,9 @@
     private ARecordType recordType;
     private int numberOfSchemaFields = 0;
 
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer serializers[];
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer deserializers[];
 
     private ARecordSerializerDeserializer() {
@@ -124,36 +139,35 @@
                     openFields[i] = AObjectSerializerDeserializer.INSTANCE.deserialize(in);
                     fieldTypes[i] = openFields[i].getType();
                 }
-                this.recordType = new ARecordType(null, fieldNames, fieldTypes, true);
+                ARecordType openPartRecType = new ARecordType(null, fieldNames, fieldTypes, true);
                 if (numberOfSchemaFields > 0) {
-                    ARecordType mergedRecordType = mergeRecordTypes(this.recordType, recordType);
-                    return new ARecord(mergedRecordType, mergeFields(closedFields, openFields));
+                    ARecordType mergedRecordType = mergeRecordTypes(this.recordType, openPartRecType);
+                    IAObject[] mergedFields = mergeFields(closedFields, openFields);
+                    return new ARecord(mergedRecordType, mergedFields);
                 } else {
                     return new ARecord(this.recordType, openFields);
                 }
             } else {
                 return new ARecord(this.recordType, closedFields);
             }
-        } catch (IOException e) {
+        } catch (IOException | AsterixException e) {
             throw new HyracksDataException(e);
         }
     }
 
     private IAObject[] mergeFields(IAObject[] closedFields, IAObject[] openFields) {
-
         IAObject[] fields = new IAObject[closedFields.length + openFields.length];
-
         int i = 0;
-        for (; i < closedFields.length; i++)
+        for (; i < closedFields.length; i++) {
             fields[i] = closedFields[i];
-
-        for (int j = 0; j < openFields.length; j++)
-            fields[i] = closedFields[j];
-
+        }
+        for (int j = 0; j < openFields.length; j++) {
+            fields[closedFields.length + j] = openFields[j];
+        }
         return fields;
     }
 
-    private ARecordType mergeRecordTypes(ARecordType recType1, ARecordType recType2) {
+    private ARecordType mergeRecordTypes(ARecordType recType1, ARecordType recType2) throws AsterixException {
 
         String[] fieldNames = new String[recType1.getFieldNames().length + recType2.getFieldNames().length];
         IAType[] fieldTypes = new IAType[recType1.getFieldTypes().length + recType2.getFieldTypes().length];
@@ -186,7 +200,7 @@
             }
             try {
                 recordBuilder.write(out, false);
-            } catch (IOException e) {
+            } catch (IOException | AsterixException e) {
                 throw new HyracksDataException(e);
             }
         } else {
@@ -254,11 +268,13 @@
             return -1; // this record does not have an open part
 
         int numberOfOpenField = AInt32SerializerDeserializer.getInt(serRecord, openPartOffset);
-        int utflength = UTF8StringPointable.getUTFLen(fieldName, 1);
-        
-        IBinaryHashFunction utf8HashFunction = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryHashFunction();
+        int utflength = UTF8StringPointable.getUTFLength(fieldName, 1);
 
-        IBinaryComparator utf8BinaryComparator = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryComparator();
+        IBinaryHashFunction utf8HashFunction = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_POINTABLE_INSTANCE
+                .createBinaryHashFunction();
+
+        IBinaryComparator utf8BinaryComparator = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE
+                .createBinaryComparator();
 
         int fieldNameHashCode = utf8HashFunction.hash(fieldName, 1, utflength);
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
index f285a08..c926da4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
@@ -86,11 +86,14 @@
                     Double.parseDouble(points[0].split(",")[1]));
             aRectanglePoint2.setValue(Double.parseDouble(points[1].split(",")[0]),
                     Double.parseDouble(points[1].split(",")[1]));
-            if (aRectanglePoint1.getX() > aRectanglePoint2.getX() || aRectanglePoint1.getY() > aRectanglePoint2.getY()) {
+            if (aRectanglePoint1.getX() > aRectanglePoint2.getX() && aRectanglePoint1.getY() > aRectanglePoint2.getY()) {
+                aRectangle.setValue(aRectanglePoint2, aRectanglePoint1);
+            } else if (aRectanglePoint1.getX() < aRectanglePoint2.getX() && aRectanglePoint1.getY() < aRectanglePoint2.getY()) {
+                aRectangle.setValue(aRectanglePoint1, aRectanglePoint2);
+            } else {
                 throw new IllegalArgumentException(
-                        "The low point in the rectangle cannot be larger than the high point");
+                        "Rectangle arugment must be either (bottom left point, top right point) or (top right point, bottom left point)");
             }
-            aRectangle.setValue(aRectanglePoint1, aRectanglePoint2);
             rectangleSerde.serialize(aRectangle, out);
         } catch (HyracksDataException e) {
             throw new HyracksDataException(rectangle + " can not be an instance of rectangle");
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
index 1d4fe07..8c3134a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableTime;
 import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -18,25 +19,18 @@
     public static final ATimeSerializerDeserializer INSTANCE = new ATimeSerializerDeserializer();
 
     @SuppressWarnings("unchecked")
-    private static ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
+    private static final ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ATIME);
-    private static AMutableTime aTime = new AMutableTime(0, 0, 0, 0, 0, 0);
-    private static String errorMessage = " can not be an instance of time";
-
-    private int time, timezone;
-
+    private static final AMutableTime aTime = new AMutableTime(0);
+    
     private ATimeSerializerDeserializer() {
     }
 
     @Override
     public ATime deserialize(DataInput in) throws HyracksDataException {
         try {
-            time = in.readInt();
-            timezone = time >> 24;
-            time -= (timezone << 24);
-            return new ATime((short) ((time << 8 >> 8) * 20 % 216000000 / 3600000),
-                    (short) ((time << 8 >> 8) * 20 % 3600000 / 60000), (short) ((time << 8 >> 8) * 20 % 60000 / 1000),
-                    (short) ((time << 8 >> 8) * 20 % 1000), (short) 0, timezone);
+            return new ATime(in.readInt());
+
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
@@ -45,84 +39,29 @@
     @Override
     public void serialize(ATime instance, DataOutput out) throws HyracksDataException {
         try {
-            time = instance.getTimeZone();
-            time = time << 24;
-            time = time
-                    + ((((((instance.getHours() * 60) + instance.getMinutes()) * 60) + instance.getSeconds()) * 1000 + instance
-                            .getMilliseconds()) / 20);
-            out.writeInt(time);
+            out.writeInt(instance.getChrononTime());
 
         } catch (IOException e) {
             throw new HyracksDataException(e);
         }
     }
 
-    public static final void serialize(short hour, short minute, short second, short msecond, byte timeZone,
-            DataOutput out) throws HyracksDataException {
-        try {
-            int time = timeZone;
-            time = time << 24;
-            time = time + ((((((hour * 60) + minute) * 60) + second) * 1000 + msecond) / 20);
-            out.writeInt(time);
-        } catch (IOException e) {
-            throw new HyracksDataException(e);
-        }
-    }
-
     public static void parse(String time, DataOutput out) throws HyracksDataException {
+        int chrononTimeInMs;
+
         try {
-            byte timezonePart = 0;
-            int offset = 0;
-            if (time.charAt(offset + 2) != ':' || time.charAt(offset + 5) != ':')
-                throw new HyracksDataException(time + errorMessage);
-
-            short hour = Short.parseShort(time.substring(offset, offset + 2));
-            short minute = Short.parseShort(time.substring(offset + 3, offset + 5));
-            short second = Short.parseShort(time.substring(offset + 6, offset + 8));
-            short msecond = 0;
-            if (time.length() > offset + 8 && time.charAt(offset + 8) == ':') {
-                msecond = Short.parseShort(time.substring(offset + 9, offset + 12));
-                if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59 || msecond < 0
-                        || msecond > 999 || (hour == 24 && (minute != 0 || second != 0 || msecond != 0)))
-                    throw new HyracksDataException(time + errorMessage);
-                offset += 12;
-            } else {
-                if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                        || (hour == 24 && (minute != 0 || second != 0)))
-                    throw new HyracksDataException(time + errorMessage);
-                offset += 8;
-            }
-
-            short timezoneHour = 0, timezoneMinute = 0;
-            if (time.length() > offset) {
-                if (time.charAt(offset) == 'Z')
-                    timezonePart = 0;
-                else {
-                    if ((time.charAt(offset) != '+' && time.charAt(offset) != '-') || (time.charAt(offset + 3) != ':'))
-                        throw new HyracksDataException(time + errorMessage);
-
-                    timezoneHour = Short.parseShort(time.substring(offset + 1, offset + 3));
-                    timezoneMinute = Short.parseShort(time.substring(offset + 4, offset + 6));
-
-                    if (timezoneHour < 0
-                            || timezoneHour > 24
-                            || (timezoneHour == 24 && timezoneMinute != 0)
-                            || (timezoneMinute != 0 && timezoneMinute != 15 && timezoneMinute != 30 && timezoneMinute != 45))
-                        throw new HyracksDataException(time + errorMessage);
-
-                    if (time.charAt(offset) == '-')
-                        timezonePart = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
-                    else
-                        timezonePart = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
-                }
-
-            }
-
-            aTime.setValue(hour, minute, second, msecond, 0, timezonePart);
-
-            timeSerde.serialize(aTime, out);
-        } catch (HyracksDataException e) {
-            throw new HyracksDataException(time + errorMessage);
+            chrononTimeInMs = ATimeParserFactory.parseTimePart(time, 0, time.length());
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
         }
+
+        aTime.setValue(chrononTimeInMs);
+
+        timeSerde.serialize(aTime, out);
     }
+
+    public static int getChronon(byte[] byteArray, int offset) {
+        return AInt32SerializerDeserializer.getInt(byteArray, offset);
+    }
+
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATypeSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATypeSerializerDeserializer.java
index 71ad41c..7f7f633 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATypeSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATypeSerializerDeserializer.java
@@ -4,7 +4,7 @@
 import java.io.DataOutput;
 
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AUnorderedListSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AUnorderedListSerializerDeserializer.java
index 1eadeb2..f85188f 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AUnorderedListSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/AUnorderedListSerializerDeserializer.java
@@ -5,7 +5,6 @@
 import java.io.IOException;
 import java.util.ArrayList;
 
-import edu.uci.ics.asterix.builders.IAUnorderedListBuilder;
 import edu.uci.ics.asterix.builders.UnorderedListBuilder;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -19,7 +18,7 @@
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class AUnorderedListSerializerDeserializer implements ISerializerDeserializer<AUnorderedList> {
 
@@ -91,7 +90,7 @@
     @Override
     public void serialize(AUnorderedList instance, DataOutput out) throws HyracksDataException {
         // TODO: schemaless ordered list serializer
-        IAUnorderedListBuilder listBuilder = new UnorderedListBuilder();
+        UnorderedListBuilder listBuilder = new UnorderedListBuilder();
         ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
         listBuilder.reset(unorderedlistType);
         IACursor cursor = instance.getCursor();
@@ -121,14 +120,14 @@
 
     public static int getItemOffset(byte[] serOrderedList, int offset, int itemIndex) throws AsterixException {
         if (serOrderedList[offset] == ATypeTag.UNORDEREDLIST.serialize()) {
-            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[1]);
+            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[offset + 1]);
             switch (typeTag) {
                 case STRING:
                 case RECORD:
                 case ORDEREDLIST:
                 case UNORDEREDLIST:
                 case ANY:
-                    return AInt32SerializerDeserializer.getInt(serOrderedList, offset + 10 + (4 * itemIndex));
+                    return offset + AInt32SerializerDeserializer.getInt(serOrderedList, offset + 10 + (4 * itemIndex));
                 default:
                     int length = NonTaggedFormatUtil.getFieldValueLength(serOrderedList, offset + 1, typeTag, true);
                     return offset + 10 + (length * itemIndex);
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
index cbe5857..6306a55 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
@@ -2,7 +2,7 @@
 
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProvider;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.impls.DoublePrimitiveValueProviderFactory;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
index 1ecb899..11f65dc 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
@@ -1,26 +1,26 @@
 package edu.uci.ics.asterix.formats.base;
 
-
 import edu.uci.ics.asterix.common.parse.IParseFileSplitsDecl;
 import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryBooleanInspector;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryComparatorFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryHashFunctionFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryIntegerInspector;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.INormalizedKeyComputerFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ISerializerDeserializerProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ITypeTraitProvider;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionEvalSizeComputer;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspectorFactory;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFamilyProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryIntegerInspectorFactory;
+import edu.uci.ics.hyracks.algebricks.data.INormalizedKeyComputerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.INullWriterFactory;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
@@ -35,18 +35,20 @@
 
     public ITypeTraitProvider getTypeTraitProvider();
 
-    public IBinaryBooleanInspector getBinaryBooleanInspector();
+    public IBinaryBooleanInspectorFactory getBinaryBooleanInspectorFactory();
 
-    public IBinaryIntegerInspector getBinaryIntegerInspector();
+    public IBinaryIntegerInspectorFactory getBinaryIntegerInspectorFactory();
 
     public IPrinterFactoryProvider getPrinterFactoryProvider();
 
+    public IPrinterFactoryProvider getJSONPrinterFactoryProvider();
+
     public INullWriterFactory getNullWriterFactory();
 
-    public Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioningEvaluatorFactory(
+    public Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioningEvaluatorFactory(
             ARecordType recType, String fldName) throws AlgebricksException;
 
-    public IEvaluatorFactory getFieldAccessEvaluatorFactory(ARecordType recType, String fldName, int recordColumn)
+    public ICopyEvaluatorFactory getFieldAccessEvaluatorFactory(ARecordType recType, String fldName, int recordColumn)
             throws AlgebricksException;
 
     public ITupleParserFactory createTupleParser(ARecordType recType, IParseFileSplitsDecl decl);
@@ -56,12 +58,14 @@
     public IFunctionDescriptor resolveFunction(ILogicalExpression expr, IVariableTypeEnvironment typeEnvironment)
             throws AlgebricksException;
 
-    public IEvaluatorFactory getConstantEvalFactory(IAlgebricksConstantValue value) throws AlgebricksException;
+    public ICopyEvaluatorFactory getConstantEvalFactory(IAlgebricksConstantValue value) throws AlgebricksException;
 
-    public IEvaluatorFactory[] createMBRFactory(ARecordType recType, String fldName, int recordColumn, int dimension)
+    public ICopyEvaluatorFactory[] createMBRFactory(ARecordType recType, String fldName, int recordColumn, int dimension)
             throws AlgebricksException;
 
     public IExpressionEvalSizeComputer getExpressionEvalSizeComputer();
 
     public INormalizedKeyComputerFactoryProvider getNormalizedKeyComputerFactoryProvider();
+
+    public IBinaryHashFunctionFamilyProvider getBinaryHashFunctionFamilyProvider();
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryBooleanInspectorImpl.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryBooleanInspectorImpl.java
index 9837e43..97a0c13 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryBooleanInspectorImpl.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryBooleanInspectorImpl.java
@@ -1,13 +1,19 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryBooleanInspector;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspector;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspectorFactory;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 public class AqlBinaryBooleanInspectorImpl implements IBinaryBooleanInspector {
+    public static final IBinaryBooleanInspectorFactory FACTORY = new IBinaryBooleanInspectorFactory() {
+        private static final long serialVersionUID = 1L;
 
-    private static final long serialVersionUID = 1L;
-
-    public static final AqlBinaryBooleanInspectorImpl INSTANCE = new AqlBinaryBooleanInspectorImpl();
+        @Override
+        public IBinaryBooleanInspector createBinaryBooleanInspector(IHyracksTaskContext ctx) {
+            return new AqlBinaryBooleanInspectorImpl();
+        }
+    };
 
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryComparatorFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryComparatorFactoryProvider.java
index 365c791..02f0e47 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryComparatorFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryComparatorFactoryProvider.java
@@ -2,46 +2,79 @@
 
 import java.io.Serializable;
 
+import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.ADateOrTimeAscBinaryComparatorFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.ADateTimeAscBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectAscBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.AObjectDescBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.BooleanBinaryComparatorFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.LongBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.RectangleBinaryComparatorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryComparatorFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.BytePointable;
 import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
 import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
+import edu.uci.ics.hyracks.data.std.primitive.RawUTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.primitive.ShortPointable;
 
 public class AqlBinaryComparatorFactoryProvider implements IBinaryComparatorFactoryProvider, Serializable {
 
     private static final long serialVersionUID = 1L;
     public static final AqlBinaryComparatorFactoryProvider INSTANCE = new AqlBinaryComparatorFactoryProvider();
-    public static final PointableBinaryComparatorFactory INTEGER_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(IntegerPointable.FACTORY);
-    public static final PointableBinaryComparatorFactory FLOAT_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(FloatPointable.FACTORY);
-    public static final PointableBinaryComparatorFactory DOUBLE_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(DoublePointable.FACTORY);
-    public static final PointableBinaryComparatorFactory UTF8STRING_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY);
-    
-    
+    public static final PointableBinaryComparatorFactory BYTE_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            BytePointable.FACTORY);
+    public static final PointableBinaryComparatorFactory SHORT_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            ShortPointable.FACTORY);
+    public static final PointableBinaryComparatorFactory INTEGER_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            IntegerPointable.FACTORY);
+    public static final PointableBinaryComparatorFactory LONG_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            LongPointable.FACTORY);
+    public static final PointableBinaryComparatorFactory FLOAT_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            FloatPointable.FACTORY);
+    public static final PointableBinaryComparatorFactory DOUBLE_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            DoublePointable.FACTORY);
+    public static final PointableBinaryComparatorFactory UTF8STRING_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            RawUTF8StringPointable.FACTORY);
+    // Equivalent to UTF8STRING_POINTABLE_INSTANCE but all characters are considered lower case to implement case-insensitive comparisons.    
+    public static final PointableBinaryComparatorFactory UTF8STRING_LOWERCASE_POINTABLE_INSTANCE = new PointableBinaryComparatorFactory(
+            UTF8StringLowercasePointable.FACTORY);
+
     private AqlBinaryComparatorFactoryProvider() {
     }
 
-    @Override
-    public IBinaryComparatorFactory getBinaryComparatorFactory(Object type, OrderKind orderKind) {
+    // This method add the option of ignoring the case in string comparisons.
+    // TODO: We should incorporate this option more nicely, but I'd have to change algebricks.
+    public IBinaryComparatorFactory getBinaryComparatorFactory(Object type, boolean ascending, boolean ignoreCase) {
         if (type == null) {
-            return anyBinaryComparatorFactory(orderKind);
+            return anyBinaryComparatorFactory(ascending);
         }
         IAType aqlType = (IAType) type;
-        switch (aqlType.getTypeTag()) {
+        if (aqlType.getTypeTag() == ATypeTag.STRING && ignoreCase) {
+            return addOffset(UTF8STRING_LOWERCASE_POINTABLE_INSTANCE, ascending);
+        }
+        return getBinaryComparatorFactory(type, ascending);
+    }
+
+    @Override
+    public IBinaryComparatorFactory getBinaryComparatorFactory(Object type, boolean ascending) {
+        if (type == null) {
+            return anyBinaryComparatorFactory(ascending);
+        }
+        IAType aqlType = (IAType) type;
+        return getBinaryComparatorFactory(aqlType.getTypeTag(), ascending);
+    }
+
+    public IBinaryComparatorFactory getBinaryComparatorFactory(ATypeTag type, boolean ascending) {
+        switch (type) {
             case ANY:
             case UNION: { // we could do smth better for nullable fields
-                return anyBinaryComparatorFactory(orderKind);
+                return anyBinaryComparatorFactory(ascending);
             }
             case NULL: {
                 return new IBinaryComparatorFactory() {
@@ -61,34 +94,46 @@
                 };
             }
             case BOOLEAN: {
-                return addOffset(BooleanBinaryComparatorFactory.INSTANCE, orderKind);
+                return addOffset(BooleanBinaryComparatorFactory.INSTANCE, ascending);
+            }
+            case INT8: {
+                return addOffset(BYTE_POINTABLE_INSTANCE, ascending);
+            }
+            case INT16: {
+                return addOffset(SHORT_POINTABLE_INSTANCE, ascending);
             }
             case INT32: {
-                return addOffset(INTEGER_POINTABLE_INSTANCE, orderKind);
+                return addOffset(INTEGER_POINTABLE_INSTANCE, ascending);
             }
             case INT64: {
-                return addOffset(LongBinaryComparatorFactory.INSTANCE, orderKind);
+                return addOffset(LONG_POINTABLE_INSTANCE, ascending);
             }
             case FLOAT: {
-                return addOffset(FLOAT_POINTABLE_INSTANCE, orderKind);
+                return addOffset(FLOAT_POINTABLE_INSTANCE, ascending);
             }
             case DOUBLE: {
-                return addOffset(DOUBLE_POINTABLE_INSTANCE, orderKind);
+                return addOffset(DOUBLE_POINTABLE_INSTANCE, ascending);
             }
             case STRING: {
-                return addOffset(UTF8STRING_POINTABLE_INSTANCE, orderKind);
+                return addOffset(UTF8STRING_POINTABLE_INSTANCE, ascending);
             }
             case RECTANGLE: {
-                return addOffset(RectangleBinaryComparatorFactory.INSTANCE, orderKind);
+                return addOffset(RectangleBinaryComparatorFactory.INSTANCE, ascending);
+            }
+            case DATE:
+            case TIME: {
+                return addOffset(ADateOrTimeAscBinaryComparatorFactory.INSTANCE, ascending);
+            }
+            case DATETIME: {
+                return addOffset(ADateTimeAscBinaryComparatorFactory.INSTANCE, ascending);
             }
             default: {
-                throw new NotImplementedException("No binary comparator factory implemented for type "
-                        + aqlType.getTypeTag() + " .");
+                throw new NotImplementedException("No binary comparator factory implemented for type " + type + " .");
             }
         }
     }
 
-    private IBinaryComparatorFactory addOffset(final IBinaryComparatorFactory inst, final OrderKind kind) {
+    private IBinaryComparatorFactory addOffset(final IBinaryComparatorFactory inst, final boolean ascending) {
         return new IBinaryComparatorFactory() {
 
             private static final long serialVersionUID = 1L;
@@ -96,45 +141,31 @@
             @Override
             public IBinaryComparator createBinaryComparator() {
                 final IBinaryComparator bc = inst.createBinaryComparator();
-                switch (kind) {
-                    case ASC: {
-                        return new IBinaryComparator() {
+                if (ascending) {
+                    return new IBinaryComparator() {
 
-                            @Override
-                            public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
-                                return bc.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
-                            }
-                        };
-                    }
-                    case DESC: {
-                        return new IBinaryComparator() {
-
-                            @Override
-                            public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
-                                return -bc.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
-                            }
-                        };
-                    }
-                    default: {
-                        throw new NotImplementedException();
-                    }
+                        @Override
+                        public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
+                            return bc.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
+                        }
+                    };
+                } else {
+                    return new IBinaryComparator() {
+                        @Override
+                        public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
+                            return -bc.compare(b1, s1 + 1, l1 - 1, b2, s2 + 1, l2 - 1);
+                        }
+                    };
                 }
             }
         };
     }
 
-    private IBinaryComparatorFactory anyBinaryComparatorFactory(OrderKind kind) {
-        switch (kind) {
-            case ASC: {
-                return AObjectAscBinaryComparatorFactory.INSTANCE;
-            }
-            case DESC: {
-                return AObjectDescBinaryComparatorFactory.INSTANCE;
-            }
-            default: {
-                throw new NotImplementedException();
-            }
+    private IBinaryComparatorFactory anyBinaryComparatorFactory(boolean ascending) {
+        if (ascending) {
+            return AObjectAscBinaryComparatorFactory.INSTANCE;
+        } else {
+            return AObjectDescBinaryComparatorFactory.INSTANCE;
         }
-
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
index a9ba32c..1afdbf8 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
@@ -8,28 +8,33 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.hash.LongBinaryHashFunctionFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.hash.RectangleBinaryHashFunctionFactory;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryHashFunctionFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
-import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
 import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
 import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
+import edu.uci.ics.hyracks.data.std.primitive.RawUTF8StringPointable;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 
-
 public class AqlBinaryHashFunctionFactoryProvider implements IBinaryHashFunctionFactoryProvider, Serializable {
 
     private static final long serialVersionUID = 1L;
     public static final AqlBinaryHashFunctionFactoryProvider INSTANCE = new AqlBinaryHashFunctionFactoryProvider();
-    public static final PointableBinaryHashFunctionFactory INTEGER_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(IntegerPointable.FACTORY);
-    public static final PointableBinaryHashFunctionFactory FLOAT_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(FloatPointable.FACTORY);
-    public static final PointableBinaryHashFunctionFactory DOUBLE_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(DoublePointable.FACTORY);
-    public static final PointableBinaryHashFunctionFactory UTF8STRING_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY);
- 
-    
+    public static final PointableBinaryHashFunctionFactory INTEGER_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(
+            IntegerPointable.FACTORY);
+    public static final PointableBinaryHashFunctionFactory FLOAT_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(
+            FloatPointable.FACTORY);
+    public static final PointableBinaryHashFunctionFactory DOUBLE_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(
+            DoublePointable.FACTORY);
+    public static final PointableBinaryHashFunctionFactory UTF8STRING_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(
+            RawUTF8StringPointable.FACTORY);
+    // Equivalent to UTF8STRING_POINTABLE_INSTANCE but all characters are considered lower case to implement case-insensitive hashing.    
+    public static final PointableBinaryHashFunctionFactory UTF8STRING_LOWERCASE_POINTABLE_INSTANCE = new PointableBinaryHashFunctionFactory(
+            UTF8StringLowercasePointable.FACTORY);
+
     private AqlBinaryHashFunctionFactoryProvider() {
     }
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java
new file mode 100644
index 0000000..bc7ba26
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.formats.nontagged;
+
+import java.io.Serializable;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.hash.MurmurHash3BinaryHashFunctionFamily;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFamilyProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFamily;
+
+/**
+ * We use a type-independent binary hash function family from the hyracks
+ * codebase
+ */
+public class AqlBinaryHashFunctionFamilyProvider implements
+		IBinaryHashFunctionFamilyProvider, Serializable {
+
+	private static final long serialVersionUID = 1L;
+	public static final AqlBinaryHashFunctionFamilyProvider INSTANCE = new AqlBinaryHashFunctionFamilyProvider();
+
+	private AqlBinaryHashFunctionFamilyProvider() {
+
+	}
+
+	@Override
+	public IBinaryHashFunctionFamily getBinaryHashFunctionFamily(Object type)
+			throws AlgebricksException {
+		return MurmurHash3BinaryHashFunctionFamily.INSTANCE;
+	}
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryIntegerInspector.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryIntegerInspector.java
index d58aeac..d7fa67e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryIntegerInspector.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryIntegerInspector.java
@@ -1,12 +1,19 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryIntegerInspector;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryIntegerInspector;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryIntegerInspectorFactory;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class AqlBinaryIntegerInspector implements IBinaryIntegerInspector {
+    public static final IBinaryIntegerInspectorFactory FACTORY = new IBinaryIntegerInspectorFactory() {
+        private static final long serialVersionUID = 1L;
 
-    private static final long serialVersionUID = 1L;
-    public static final AqlBinaryIntegerInspector INSTANCE = new AqlBinaryIntegerInspector();
+        @Override
+        public IBinaryIntegerInspector createBinaryIntegerInspector(IHyracksTaskContext ctx) {
+            return new AqlBinaryIntegerInspector();
+        }
+    };
 
     private AqlBinaryIntegerInspector() {
     }
@@ -15,5 +22,4 @@
     public int getIntegerValue(byte[] bytes, int offset, int length) {
         return IntegerSerializerDeserializer.getInt(bytes, offset + 1);
     }
-
-}
+}
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
index 9893273..41a921e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
@@ -1,30 +1,75 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
+import edu.uci.ics.asterix.dataflow.data.common.AListElementTokenFactory;
+import edu.uci.ics.asterix.dataflow.data.common.AOrderedListBinaryTokenizerFactory;
+import edu.uci.ics.asterix.dataflow.data.common.AUnorderedListBinaryTokenizerFactory;
 import edu.uci.ics.asterix.dataflow.data.common.IBinaryTokenizerFactoryProvider;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizerFactory;
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.IBinaryTokenizerFactory;
-import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.UTF8WordTokenFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.HashedUTF8WordTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.UTF8NGramTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.UTF8WordTokenFactory;
 
 public class AqlBinaryTokenizerFactoryProvider implements IBinaryTokenizerFactoryProvider {
 
     public static final AqlBinaryTokenizerFactoryProvider INSTANCE = new AqlBinaryTokenizerFactoryProvider();
 
     private static final IBinaryTokenizerFactory aqlStringTokenizer = new DelimitedUTF8StringBinaryTokenizerFactory(
-            true, true, new UTF8WordTokenFactory());
+            true, true, new UTF8WordTokenFactory(ATypeTag.STRING.serialize(), ATypeTag.INT32.serialize()));
+
+    private static final IBinaryTokenizerFactory aqlHashingStringTokenizer = new DelimitedUTF8StringBinaryTokenizerFactory(
+            true, true, new HashedUTF8WordTokenFactory(ATypeTag.INT32.serialize(), ATypeTag.INT32.serialize()));
+
+    private static final IBinaryTokenizerFactory orderedListTokenizer = new AOrderedListBinaryTokenizerFactory(
+            new AListElementTokenFactory());
+
+    private static final IBinaryTokenizerFactory unorderedListTokenizer = new AUnorderedListBinaryTokenizerFactory(
+            new AListElementTokenFactory());
 
     @Override
-    public IBinaryTokenizerFactory getTokenizerFactory(Object type) {
-        IAType aqlType = (IAType) type;
-        switch (aqlType.getTypeTag()) {
+    public IBinaryTokenizerFactory getWordTokenizerFactory(ATypeTag typeTag, boolean hashedTokens) {
+        switch (typeTag) {
             case STRING: {
-                return aqlStringTokenizer;
+                if (hashedTokens) {
+                    return aqlHashingStringTokenizer;
+                } else {
+                    return aqlStringTokenizer;
+                }
             }
-
+            case ORDEREDLIST: {
+                return orderedListTokenizer;
+            }
+            case UNORDEREDLIST: {
+                return unorderedListTokenizer;
+            }
             default: {
                 return null;
             }
         }
     }
 
+    @Override
+    public IBinaryTokenizerFactory getNGramTokenizerFactory(ATypeTag typeTag, int gramLength, boolean usePrePost,
+            boolean hashedTokens) {
+        switch (typeTag) {
+            case STRING: {
+                if (hashedTokens) {
+                    return null;
+                } else {
+                    return new NGramUTF8StringBinaryTokenizerFactory(gramLength, usePrePost, true, true,
+                            new UTF8NGramTokenFactory(ATypeTag.STRING.serialize(), ATypeTag.INT32.serialize()));
+                }
+            }
+            case ORDEREDLIST: {
+                return orderedListTokenizer;
+            }
+            case UNORDEREDLIST: {
+                return unorderedListTokenizer;
+            }
+            default: {
+                return null;
+            }
+        }
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlJSONPrinterFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlJSONPrinterFactoryProvider.java
new file mode 100644
index 0000000..b8c6ab0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlJSONPrinterFactoryProvider.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.formats.nontagged;
+
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ABooleanPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ACirclePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADatePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADateTimePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADoublePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADurationPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AFloatPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt16PrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt32PrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt64PrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt8PrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ALinePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ANullPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ANullableFieldPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AObjectPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AOrderedlistPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APoint3DPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APointPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APolygonPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ARecordPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ARectanglePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AStringPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ATimePrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AUnionPrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AUnorderedlistPrinterFactory;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactoryProvider;
+
+public class AqlJSONPrinterFactoryProvider implements IPrinterFactoryProvider {
+
+    public static final AqlJSONPrinterFactoryProvider INSTANCE = new AqlJSONPrinterFactoryProvider();
+
+    private AqlJSONPrinterFactoryProvider() {
+    }
+
+    @Override
+    public IPrinterFactory getPrinterFactory(Object type) throws AlgebricksException {
+        IAType aqlType = (IAType) type;
+
+        if (aqlType != null) {
+            switch (aqlType.getTypeTag()) {
+                // case ANYTYPE:
+                // return AAnyTypePrinterFactory.INSTANCE;
+                case INT8:
+                    return AInt8PrinterFactory.INSTANCE;
+                case INT16:
+                    return AInt16PrinterFactory.INSTANCE;
+                case INT32:
+                    return AInt32PrinterFactory.INSTANCE;
+                case INT64:
+                    return AInt64PrinterFactory.INSTANCE;
+                case NULL:
+                    return ANullPrinterFactory.INSTANCE;
+                case BOOLEAN:
+                    return ABooleanPrinterFactory.INSTANCE;
+                case FLOAT:
+                    return AFloatPrinterFactory.INSTANCE;
+                case DOUBLE:
+                    return ADoublePrinterFactory.INSTANCE;
+                case TIME:
+                    return ATimePrinterFactory.INSTANCE;
+                case DATE:
+                    return ADatePrinterFactory.INSTANCE;
+                case DATETIME:
+                    return ADateTimePrinterFactory.INSTANCE;
+                case DURATION:
+                    return ADurationPrinterFactory.INSTANCE;
+                case POINT:
+                    return APointPrinterFactory.INSTANCE;
+                case POINT3D:
+                    return APoint3DPrinterFactory.INSTANCE;
+                case LINE:
+                    return ALinePrinterFactory.INSTANCE;
+                case POLYGON:
+                    return APolygonPrinterFactory.INSTANCE;
+                case CIRCLE:
+                    return ACirclePrinterFactory.INSTANCE;
+                case RECTANGLE:
+                    return ARectanglePrinterFactory.INSTANCE;
+                case STRING:
+                    return AStringPrinterFactory.INSTANCE;
+                case RECORD:
+                    return new ARecordPrinterFactory((ARecordType) aqlType);
+                case ORDEREDLIST:
+                    return new AOrderedlistPrinterFactory((AOrderedListType) aqlType);
+                case UNORDEREDLIST:
+                    return new AUnorderedlistPrinterFactory((AUnorderedListType) aqlType);
+                case UNION: {
+                    if (NonTaggedFormatUtil.isOptionalField((AUnionType) aqlType))
+                        return new ANullableFieldPrinterFactory((AUnionType) aqlType);
+                    else
+                        return new AUnionPrinterFactory((AUnionType) aqlType);
+                }
+            }
+        }
+        return AObjectPrinterFactory.INSTANCE;
+
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlNormalizedKeyComputerFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlNormalizedKeyComputerFactoryProvider.java
index 554cbf5..23306ed 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlNormalizedKeyComputerFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlNormalizedKeyComputerFactoryProvider.java
@@ -1,13 +1,15 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
-import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AInt32AscNormalizedKeyComputerFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AInt32DescNormalizedKeyComputerFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AStringAscNormalizedKeyComputerFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AStringDescNormalizedKeyComputerFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AWrappedAscNormalizedKeyComputerFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.keynormalizers.AWrappedDescNormalizedKeyComputerFactory;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.INormalizedKeyComputerFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
+import edu.uci.ics.hyracks.algebricks.data.INormalizedKeyComputerFactoryProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.normalizers.DoubleNormalizedKeyComputerFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.normalizers.FloatNormalizedKeyComputerFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.normalizers.Integer64NormalizedKeyComputerFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.normalizers.IntegerNormalizedKeyComputerFactory;
+import edu.uci.ics.hyracks.dataflow.common.data.normalizers.UTF8StringNormalizedKeyComputerFactory;
 
 public class AqlNormalizedKeyComputerFactoryProvider implements INormalizedKeyComputerFactoryProvider {
 
@@ -17,34 +19,50 @@
     }
 
     @Override
-    public INormalizedKeyComputerFactory getNormalizedKeyComputerFactory(Object type, OrderKind order) {
+    public INormalizedKeyComputerFactory getNormalizedKeyComputerFactory(Object type, boolean ascending) {
         IAType aqlType = (IAType) type;
-        if (order == OrderKind.ASC) {
+        if (ascending) {
             switch (aqlType.getTypeTag()) {
                 case INT32: {
-                    return AInt32AscNormalizedKeyComputerFactory.INSTANCE;
+                    return new AWrappedAscNormalizedKeyComputerFactory(new IntegerNormalizedKeyComputerFactory());
+                }
+                case INT64: {
+                    return new AWrappedAscNormalizedKeyComputerFactory(new Integer64NormalizedKeyComputerFactory());
+                }
+                case FLOAT: {
+                    return new AWrappedAscNormalizedKeyComputerFactory(new FloatNormalizedKeyComputerFactory());
+                }
+                case DOUBLE: {
+                    return new AWrappedAscNormalizedKeyComputerFactory(new DoubleNormalizedKeyComputerFactory());
                 }
                 case STRING: {
-                    return AStringAscNormalizedKeyComputerFactory.INSTANCE;
+                    return new AWrappedAscNormalizedKeyComputerFactory(new UTF8StringNormalizedKeyComputerFactory());
                 }
                 default: {
                     return null;
                 }
             }
-        } else if (order == OrderKind.DESC) {
+        } else {
             switch (aqlType.getTypeTag()) {
                 case INT32: {
-                    return AInt32DescNormalizedKeyComputerFactory.INSTANCE;
+                    return new AWrappedDescNormalizedKeyComputerFactory(new IntegerNormalizedKeyComputerFactory());
+                }
+                case INT64: {
+                    return new AWrappedDescNormalizedKeyComputerFactory(new Integer64NormalizedKeyComputerFactory());
+                }
+                case FLOAT: {
+                    return new AWrappedDescNormalizedKeyComputerFactory(new FloatNormalizedKeyComputerFactory());
+                }
+                case DOUBLE: {
+                    return new AWrappedDescNormalizedKeyComputerFactory(new DoubleNormalizedKeyComputerFactory());
                 }
                 case STRING: {
-                    return AStringDescNormalizedKeyComputerFactory.INSTANCE;
+                    return new AWrappedDescNormalizedKeyComputerFactory(new UTF8StringNormalizedKeyComputerFactory());
                 }
                 default: {
                     return null;
                 }
             }
-        } else
-            return null;
+        }
     }
-
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPrinterFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPrinterFactoryProvider.java
index 37bcc0a..fe8792f 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPrinterFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPrinterFactoryProvider.java
@@ -1,6 +1,5 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
-
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ABooleanPrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ACirclePrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ADatePrinterFactory;
@@ -12,6 +11,7 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt32PrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt64PrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt8PrinterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AIntervalPrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ALinePrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ANullPrinterFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ANullableFieldPrinterFactory;
@@ -32,9 +32,9 @@
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactoryProvider;
 
 public class AqlPrinterFactoryProvider implements IPrinterFactoryProvider {
 
@@ -49,8 +49,8 @@
 
         if (aqlType != null) {
             switch (aqlType.getTypeTag()) {
-                // case ANYTYPE:
-                // return AAnyTypePrinterFactory.INSTANCE;
+            // case ANYTYPE:
+            // return AAnyTypePrinterFactory.INSTANCE;
                 case INT8:
                     return AInt8PrinterFactory.INSTANCE;
                 case INT16:
@@ -75,6 +75,8 @@
                     return ADateTimePrinterFactory.INSTANCE;
                 case DURATION:
                     return ADurationPrinterFactory.INSTANCE;
+                case INTERVAL:
+                    return AIntervalPrinterFactory.INSTANCE;
                 case POINT:
                     return APointPrinterFactory.INSTANCE;
                 case POINT3D:
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
index 7d749ec..29e33fd 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
@@ -16,6 +16,7 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AIntervalSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ANullSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
@@ -35,8 +36,8 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ISerializerDeserializerProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
@@ -48,7 +49,7 @@
     private AqlSerializerDeserializerProvider() {
     }
 
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     @Override
     public ISerializerDeserializer getSerializerDeserializer(Object typeInfo) {
         IAType aqlType = (IAType) typeInfo;
@@ -63,7 +64,7 @@
         }
     }
 
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     public ISerializerDeserializer getNonTaggedSerializerDeserializer(IAType aqlType) {
         switch (aqlType.getTypeTag()) {
             case CIRCLE: {
@@ -111,6 +112,9 @@
             case DURATION: {
                 return ADurationSerializerDeserializer.INSTANCE;
             }
+            case INTERVAL: {
+                return AIntervalSerializerDeserializer.INSTANCE;
+            }
             case ORDEREDLIST: {
                 return new AOrderedListSerializerDeserializer((AOrderedListType) aqlType);
             }
@@ -139,7 +143,7 @@
         }
     }
 
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer addTag(final ISerializerDeserializer nonTaggedSerde, final ATypeTag typeTag) {
         return new ISerializerDeserializer<IAObject>() {
 
@@ -148,6 +152,7 @@
             @Override
             public IAObject deserialize(DataInput in) throws HyracksDataException {
                 try {
+                    //deserialize the tag to move the  input cursor forward 
                     SerializerDeserializerUtil.deserializeTag(in);
                 } catch (IOException e) {
                     throw new HyracksDataException(e);
@@ -155,6 +160,7 @@
                 return (IAObject) nonTaggedSerde.deserialize(in);
             }
 
+            @SuppressWarnings("unchecked")
             @Override
             public void serialize(IAObject instance, DataOutput out) throws HyracksDataException {
                 SerializerDeserializerUtil.serializeTag(instance, out);
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlTypeTraitProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlTypeTraitProvider.java
index 4e5b4a3..a7e8e83 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlTypeTraitProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlTypeTraitProvider.java
@@ -1,7 +1,7 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 
 public class AqlTypeTraitProvider implements ITypeTraitProvider {
@@ -14,10 +14,11 @@
     private static final ITypeTraits FOURBYTETYPETRAIT = new TypeTrait(4 + 1);
     private static final ITypeTraits EIGHTBYTETYPETRAIT = new TypeTrait(8 + 1);
     private static final ITypeTraits SIXTEENBYTETYPETRAIT = new TypeTrait(16 + 1);
+    private static final ITypeTraits SEVENTEENBYTETYPETRAIT = new TypeTrait(17 + 1);
     private static final ITypeTraits THIRTYTWOBYTETYPETRAIT = new TypeTrait(32 + 1);
     private static final ITypeTraits TWENTYFOURBYTETYPETRAIT = new TypeTrait(24 + 1);
 
-    private static final ITypeTraits VARLENTYPETRAIT = new TypeTrait(false,-1);
+    private static final ITypeTraits VARLENTYPETRAIT = new TypeTrait(false, -1);
 
     public static final AqlTypeTraitProvider INSTANCE = new AqlTypeTraitProvider();
 
@@ -42,6 +43,8 @@
                 return EIGHTBYTETYPETRAIT;
             case POINT:
                 return SIXTEENBYTETYPETRAIT;
+            case INTERVAL:
+                return SEVENTEENBYTETYPETRAIT;
             case POINT3D:
                 return TWENTYFOURBYTETYPETRAIT;
             case LINE:
@@ -53,8 +56,6 @@
     }
 }
 
-
-
 class TypeTrait implements ITypeTraits {
 
     @Override
@@ -66,18 +67,17 @@
     public int getFixedLength() {
         return fixedLength;
     }
-   
+
     private boolean isFixedLength;
     private int fixedLength;
-    
-    public TypeTrait(boolean isFixedLength, int fixedLength){
+
+    public TypeTrait(boolean isFixedLength, int fixedLength) {
         this.isFixedLength = isFixedLength;
         this.fixedLength = fixedLength;
     }
-    
-    public TypeTrait(int fixedLength){
+
+    public TypeTrait(int fixedLength) {
         this.isFixedLength = true;
         this.fixedLength = fixedLength;
     }
 }
-
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/NGramUTF8StringBinaryTokenizerFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/NGramUTF8StringBinaryTokenizerFactory.java
new file mode 100644
index 0000000..48dde10
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/NGramUTF8StringBinaryTokenizerFactory.java
@@ -0,0 +1,51 @@
+/**
+ * Copyright 2010-2011 The Regents of the University of California
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on
+ * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations under
+ * the License.
+ * 
+ * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ */
+
+package edu.uci.ics.asterix.formats.nontagged;
+
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.NGramUTF8StringBinaryTokenizer;
+
+// TODO: Should be moved into Hyracks with the rest of the tokenizer code.
+public class NGramUTF8StringBinaryTokenizerFactory implements IBinaryTokenizerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final int gramLength;
+    private final boolean usePrePost;
+    private final boolean ignoreTokenCount;
+    private final boolean sourceHasTypeTag;
+    private final ITokenFactory tokenFactory;
+
+    public NGramUTF8StringBinaryTokenizerFactory(int gramLength, boolean usePrePost, boolean ignoreTokenCount,
+            boolean sourceHasTypeTag, ITokenFactory tokenFactory) {
+        this.gramLength = gramLength;
+        this.usePrePost = usePrePost;
+        this.ignoreTokenCount = ignoreTokenCount;
+        this.sourceHasTypeTag = sourceHasTypeTag;
+        this.tokenFactory = tokenFactory;
+    }
+
+    @Override
+    public IBinaryTokenizer createTokenizer() {
+        return new NGramUTF8StringBinaryTokenizer(gramLength, usePrePost, ignoreTokenCount, sourceHasTypeTag,
+                tokenFactory);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/UTF8StringLowercasePointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/UTF8StringLowercasePointable.java
new file mode 100644
index 0000000..36c19f00
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/UTF8StringLowercasePointable.java
@@ -0,0 +1,88 @@
+package edu.uci.ics.asterix.formats.nontagged;
+
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.data.std.api.AbstractPointable;
+import edu.uci.ics.hyracks.data.std.api.IComparable;
+import edu.uci.ics.hyracks.data.std.api.IHashable;
+import edu.uci.ics.hyracks.data.std.api.IPointable;
+import edu.uci.ics.hyracks.data.std.api.IPointableFactory;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+
+// TODO: Perhaps this class should go into hyracks.
+public final class UTF8StringLowercasePointable extends AbstractPointable implements IHashable, IComparable {
+    public static final ITypeTraits TYPE_TRAITS = new ITypeTraits() {
+        private static final long serialVersionUID = 1L;
+
+        @Override
+        public boolean isFixedLength() {
+            return false;
+        }
+
+        @Override
+        public int getFixedLength() {
+            return 0;
+        }
+    };
+
+    public static final IPointableFactory FACTORY = new IPointableFactory() {
+        private static final long serialVersionUID = 1L;
+
+        @Override
+        public IPointable createPointable() {
+            return new UTF8StringLowercasePointable();
+        }
+
+        @Override
+        public ITypeTraits getTypeTraits() {
+            return TYPE_TRAITS;
+        }
+    };
+
+    public static int getUTFLen(byte[] b, int s) {
+        return ((b[s] & 0xff) << 8) + ((b[s + 1] & 0xff) << 0);
+    }
+
+    @Override
+    public int compareTo(IPointable pointer) {
+        return compareTo(pointer.getByteArray(), pointer.getStartOffset(), pointer.getLength());
+    }
+
+    @Override
+    public int compareTo(byte[] bytes, int start, int length) {
+        int utflen1 = getUTFLen(this.bytes, this.start);
+        int utflen2 = getUTFLen(bytes, start);
+
+        int c1 = 0;
+        int c2 = 0;
+
+        int s1Start = this.start + 2;
+        int s2Start = start + 2;
+
+        while (c1 < utflen1 && c2 < utflen2) {
+            char ch1 = Character.toLowerCase(UTF8StringPointable.charAt(this.bytes, s1Start + c1));
+            char ch2 = Character.toLowerCase(UTF8StringPointable.charAt(bytes, s2Start + c2));
+
+            if (ch1 != ch2) {
+                return ch1 - ch2;
+            }
+            c1 += UTF8StringPointable.charSize(this.bytes, s1Start + c1);
+            c2 += UTF8StringPointable.charSize(bytes, s2Start + c2);
+        }
+        return utflen1 - utflen2;
+    }
+
+    @Override
+    public int hash() {
+        int h = 0;
+        int utflen = getUTFLen(bytes, start);
+        int sStart = start + 2;
+        int c = 0;
+
+        while (c < utflen) {
+            char ch = Character.toLowerCase(UTF8StringPointable.charAt(bytes, sStart + c));
+            h = 31 * h + ch;
+            c += UTF8StringPointable.charSize(bytes, sStart + c);
+        }
+        return h;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABinary.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABinary.java
index d155f6d..47e23fc 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABinary.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABinary.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -60,4 +77,13 @@
     public String toString() {
         return "ABinary";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ABinary", bytes);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABitArray.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABitArray.java
index 28f139a..a27b05e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABitArray.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABitArray.java
@@ -1,5 +1,23 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -115,4 +133,17 @@
         sb.append(" ]");
         return sb.toString();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONArray bitArray = new JSONArray();
+        for (int i = 0; i < intArray.length; i++) {
+            bitArray.put(intArray[i]);
+        }
+        json.put("ABitArray", bitArray);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABoolean.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABoolean.java
index 2627ff6..85c35b6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABoolean.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ABoolean.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -57,4 +74,13 @@
     public int hash() {
         return bVal.hashCode();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ABoolean", bVal);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACircle.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACircle.java
index 5d0977c..c7d946c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACircle.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACircle.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -59,4 +76,16 @@
     public String toString() {
         return "ACircle: { center: " + center + ", radius: " + radius + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject circle = new JSONObject();
+        circle.put("center", center);
+        circle.put("radius", radius);
+        json.put("ACircle", circle);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACollectionCursor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACollectionCursor.java
index 20afc2e..23c0552 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACollectionCursor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ACollectionCursor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import java.util.ArrayList;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADate.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADate.java
index f60c908..0ef170e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADate.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADate.java
@@ -1,38 +1,42 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
 
+/**
+ * ADate type represents dates in a gregorian calendar system.
+ */
 public class ADate implements IAObject {
 
-    protected int day;
-    protected int month;
-    protected int year;
-    protected int timezone;
+    /**
+     * the number of full calendar days since the 1970-01-01 represented by the date value.
+     */
+    protected int chrononTimeInDay;
 
-    public ADate(int year, int month, int day, int timezone) {
-        this.day = day;
-        this.month = month;
-        this.year = year;
-        this.timezone = timezone;
-    }
+    protected static long CHRONON_OF_DAY = 24 * 60 * 60 * 1000;
 
-    public int getDay() {
-        return day;
-    }
-
-    public int getMonth() {
-        return month;
-    }
-
-    public int getTimeZone() {
-        return timezone;
-    }
-
-    public int getYear() {
-        return year;
+    public ADate(int chrononTimeInDay) {
+        this.chrononTimeInDay = chrononTimeInDay;
     }
 
     public IAType getType() {
@@ -43,14 +47,13 @@
         if (!(o instanceof ADate)) {
             return false;
         } else {
-            ADate d = (ADate) o;
-            return d.getDay() == day && d.getMonth() == month && d.getYear() == year && d.getTimeZone() == timezone;
+            return ((ADate) o).chrononTimeInDay == this.chrononTimeInDay;
         }
     }
 
     @Override
     public int hashCode() {
-        return ((year * 31 + month) * 31 + day) * 31 + timezone;
+        return chrononTimeInDay;
     }
 
     @Override
@@ -70,6 +73,25 @@
 
     @Override
     public String toString() {
-        return "ADate: { " + year + "-" + month + "-" + day + ":" + timezone + " }";
+        StringBuilder sbder = new StringBuilder();
+        sbder.append("ADate: { ");
+        GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(
+                chrononTimeInDay * CHRONON_OF_DAY, 0, sbder, GregorianCalendarSystem.Fields.YEAR,
+                GregorianCalendarSystem.Fields.DAY);
+        sbder.append(" }");
+        return sbder.toString();
+    }
+
+    public int getChrononTimeInDays() {
+        return chrononTimeInDay;
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ADate", chrononTimeInDay);
+
+        return json;
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADateTime.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADateTime.java
index e300d78..081fa63 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADateTime.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADateTime.java
@@ -1,73 +1,56 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
 
+/**
+ * ADateTime type represents the timestamp values.
+ * <p/>
+ * An ADateTime value contains the following time fields:<br/>
+ * - year;<br/>
+ * - month;<br/>
+ * - day;<br/>
+ * - hour; <br/>
+ * - minute; <br/>
+ * - second; <br/>
+ * - millisecond. <br/>
+ * By default, an ADateTime value is a UTC time value, i.e., there is no timezone information maintained. However user can use the timezone based AQL function to convert a UTC time to a timezone-embedded time.
+ * <p/>
+ * And the string representation of an ADateTime value follows the ISO8601 standard, in the following format:<br/>
+ * [+|-]YYYY-MM-DDThh:mm:ss.xxxZ
+ * <p/>
+ * Internally, an ADateTime value is stored as the number of milliseconds elapsed since 1970-01-01T00:00:00.000Z (also called chronon time). Functions to convert between a string representation of an ADateTime and its chronon time are implemented in {@link GregorianCalendarSystem}.
+ * <p/>
+ */
 public class ADateTime implements IAObject {
 
-    private static final int[] NUM_DAYS_IN_MONTH = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+    /**
+     * Represent the time interval as milliseconds since 1970-01-01T00:00:00.000Z.
+     */
+    protected long chrononTime;
 
-    protected int day;
-    protected int hour;
-    protected int minutes;
-    protected int month;
-    protected int seconds;
-    protected int timezone;
-    protected int year;
-    protected int milliseconds;
-    protected int microseconds;
-
-    public ADateTime(int year, int month, int day, int hour, int minutes, int seconds, int timezone) {
-        this.year = year;
-        this.month = month;
-        this.day = day;
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.timezone = timezone;
-    }
-
-    public ADateTime(int year, int month, int day, int hour, int minutes, int seconds, int milliseconds,
-            int microseconds, int timezone) {
-        this.year = year;
-        this.month = month;
-        this.day = day;
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.milliseconds = milliseconds;
-        this.microseconds = microseconds;
-        this.timezone = timezone;
-    }
-
-    public int getDay() {
-        return day;
-    }
-
-    public int getHours() {
-        return hour;
-    }
-
-    public int getMinutes() {
-        return minutes;
-    }
-
-    public int getMonth() {
-        return month;
-    }
-
-    public int getSeconds() {
-        return seconds;
-    }
-
-    public int getTimeZone() {
-        return timezone;
-    }
-
-    public int getYear() {
-        return year;
+    public ADateTime(long chrononTime) {
+        this.chrononTime = chrononTime;
     }
 
     @Override
@@ -75,125 +58,33 @@
         return BuiltinType.ADATETIME;
     }
 
-    public int getMicroseconds() {
-        return microseconds;
-    }
-
-    public int getMilliseconds() {
-        return milliseconds;
-    }
-
     public int compare(Object o) {
         if (!(o instanceof ADateTime)) {
             return -1;
         }
 
         ADateTime d = (ADateTime) o;
-        if (timezone != d.getTimeZone()) {
-            AMutableDateTime dt1 = new AMutableDateTime(year, month, day, hour, minutes, seconds, milliseconds,
-                    microseconds, timezone);
-            AMutableDateTime dt2 = new AMutableDateTime(d.getYear(), d.getMonth(), d.getDay(), d.getHours(),
-                    d.getMinutes(), d.getSeconds(), d.getMilliseconds(), d.getMicroseconds(), d.getTimeZone());
-            dt1.convertToUTC();
-            dt2.convertToUTC();
-
-            return dt1.tzEqualCompare(dt2);
-
-        }
-
-        return tzEqualCompare(d);
-    }
-
-    protected void convertToUTC() {
-        short tzMin = (short) ((timezone % 4) * 15);
-        short tzHr = (short) (timezone / 4);
-        minutes -= tzMin;
-        if (minutes >= 60) {
-            minutes %= 60;
-            hour += 1;
-        }
-        hour -= tzHr;
-        if (hour >= 24) {
-            hour %= 24;
-            day += 1;
-        }
-        if (isLeapYear(year) && month == 2) {
-            if (day >= 29) {
-                day %= 29;
-                month += 1;
-            }
+        if (this.chrononTime > d.chrononTime) {
+            return 1;
+        } else if (this.chrononTime < d.chrononTime) {
+            return -1;
         } else {
-            if (day >= NUM_DAYS_IN_MONTH[month - 1]) {
-                day %= NUM_DAYS_IN_MONTH[month - 1];
-                month += 1;
-            }
+            return 0;
         }
-
-        if (month >= 12) {
-            month %= 12;
-            year += 1;
-        }
-        timezone = 0;
-
-    }
-
-    protected static boolean isLeapYear(int year) {
-        if (year % 400 == 0) {
-            return true;
-        } else if (year % 100 == 0) {
-            return false;
-        } else if (year % 4 == 0) {
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-    // comparison that assumes the timezones are the same!
-    protected int tzEqualCompare(ADateTime d) {
-        if (year != d.getYear()) {
-            return year - d.getYear();
-        }
-        if (month != d.getMonth()) {
-            return month - d.getMonth();
-        }
-        if (day != d.getDay()) {
-            return day - d.getDay();
-        }
-        if (hour != d.getHours()) {
-            return hour - d.getHours();
-        }
-        if (minutes != d.getMinutes()) {
-            return minutes - d.getMinutes();
-        }
-        if (seconds != d.getSeconds()) {
-            return seconds - d.getSeconds();
-        }
-        if (milliseconds != d.getMilliseconds()) {
-            return milliseconds - d.getMilliseconds();
-        }
-        if (microseconds != d.getMicroseconds()) {
-            return microseconds - d.getMicroseconds();
-        }
-
-        return 0;
     }
 
     public boolean equals(Object o) {
         if (!(o instanceof ADateTime)) {
             return false;
         } else {
-            ADateTime d = (ADateTime) o;
-            return d.getMicroseconds() == microseconds && d.getMilliseconds() == milliseconds
-                    && d.getSeconds() == seconds && d.getMinutes() == minutes && d.getHours() == hour
-                    && d.getDay() == day && d.getMonth() == month && d.getYear() == year && d.getTimeZone() == timezone;
+            ADateTime t = (ADateTime) o;
+            return t.chrononTime == this.chrononTime;
         }
     }
 
     @Override
     public int hashCode() {
-        return (((((((year * 31 + month) * 31 + day) * 31 + timezone) * 31 + hour) * 31 + minutes) * 31 + seconds) * 31 + milliseconds)
-                * 31 + microseconds;
+        return (int) (chrononTime ^ (chrononTime >>> 32));
     }
 
     @Override
@@ -213,8 +104,24 @@
 
     @Override
     public String toString() {
-        return "ADateTime: { " + year + "-" + month + "-" + day + ":" + hour + ":" + minutes + ":" + seconds + ":"
-                + milliseconds + ":" + microseconds + ":" + timezone + " }";
+        StringBuilder sbder = new StringBuilder();
+        sbder.append("ADateTime: { ");
+        GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(chrononTime, 0, sbder,
+                GregorianCalendarSystem.Fields.YEAR, GregorianCalendarSystem.Fields.MILLISECOND);
+        sbder.append(" }");
+        return sbder.toString();
     }
 
+    public long getChrononTime() {
+        return chrononTime;
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ADateTime", chrononTime);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
index e8dd845..582e192 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -56,4 +73,12 @@
         return hashCode();
     }
 
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ADouble", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADuration.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADuration.java
index 6f8064e..113751f 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADuration.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADuration.java
@@ -1,26 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
 
+/**
+ * ADuration type represents time duration (unanchored time length) values.
+ * <p/>
+ * An ADuration value may contain the same fields as the {@link ADateTime}: <br/>
+ * - year;<br/>
+ * - month;<br/>
+ * - day;<br/>
+ * - hour; <br/>
+ * - minute; <br/>
+ * - second; <br/>
+ * - millisecond. <br/>
+ * Compared with {@link ADateTime}, a field in a duration value does not have the limited domain requirement. A duration field is valid as far as the value of the field is an integer.
+ * </p>
+ * We also support negative durations, which is not specified by ISO 8601, but has been
+ * supported by XML spec to enable the arithmetic operations between time instances.
+ * <p/>
+ * Internally, an ADuration value is stored as two fields: an integer field as the number of months for the YEAR and MONTH fields, and a long integer field as the number of milliseconds for the other fields.
+ * <p/>
+ */
 public class ADuration implements IAObject {
 
-    protected int months;
-    protected int seconds;
+    /**
+     * number of full months represented by the year-month part
+     */
+    protected int chrononInMonth;
 
-    public ADuration(int months, int seconds) {
-        this.months = months;
-        this.seconds = seconds;
+    /**
+     * number of milliseconds represented by the part other than the year and month
+     */
+    protected long chrononInMillisecond;
+
+    public ADuration(int months, long seconds) {
+        this.chrononInMonth = months;
+        this.chrononInMillisecond = seconds;
     }
 
     public int getMonths() {
-        return months;
+        return chrononInMonth;
     }
 
-    public int getSeconds() {
-        return seconds;
+    public long getMilliseconds() {
+        return chrononInMillisecond;
     }
 
     @Override
@@ -34,13 +78,13 @@
             return false;
         } else {
             ADuration d = (ADuration) o;
-            return d.getMonths() == months && d.getSeconds() == seconds;
+            return d.getMonths() == chrononInMonth && d.getMilliseconds() == chrononInMillisecond;
         }
     }
 
     @Override
     public int hashCode() {
-        return months * 31 + seconds;
+        return (int) (chrononInMonth ^ (chrononInMillisecond) ^ (chrononInMillisecond >>> 32));
     }
 
     @Override
@@ -58,4 +102,25 @@
         return hashCode();
     }
 
+    @Override
+    public String toString() {
+        StringBuilder sbder = new StringBuilder();
+        sbder.append("ADuration: {");
+        GregorianCalendarSystem.getInstance().getDurationExtendStringRepWithTimezoneUntilField(chrononInMillisecond,
+                chrononInMonth, sbder);
+        sbder.append(" }");
+        return sbder.toString();
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject duration = new JSONObject();
+        duration.put("months", chrononInMonth);
+        duration.put("milliseconds", chrononInMillisecond);
+        json.put("ADuration", duration);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AFloat.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AFloat.java
index 8404b5e..9804eb3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AFloat.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AFloat.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -55,4 +72,13 @@
     public String toString() {
         return "AFloat: {" + value + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AFloat", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt16.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt16.java
index 75fe896..2be714d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt16.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt16.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -45,4 +62,13 @@
     public String toString() {
         return "AInt16: {" + value + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AInt16", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
index 86c071b..640bc0e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -70,4 +87,13 @@
     public int hash() {
         return hashCode();
     }
-}
\ No newline at end of file
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AInt32", value);
+
+        return json;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt64.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt64.java
index 36d482a..769d492 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt64.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt64.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -44,4 +61,13 @@
     public String toString() {
         return "AInt64: {" + value + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AInt64", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt8.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt8.java
index 5dabba5..90135a3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt8.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt8.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -44,4 +61,13 @@
     public String toString() {
         return "AInt8: {" + value + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AInt8", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInterval.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInterval.java
new file mode 100644
index 0000000..f1352f1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInterval.java
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+
+public class AInterval implements IAObject {
+
+    protected long intervalStart;
+    protected long intervalEnd;
+    protected byte typetag;
+
+    public AInterval(long intervalStart, long intervalEnd, byte typetag) {
+        this.intervalStart = intervalStart;
+        this.intervalEnd = intervalEnd;
+        this.typetag = typetag;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.base.IAObject#getType()
+     */
+    @Override
+    public IAType getType() {
+        return BuiltinType.AINTERVAL;
+    }
+
+    public int compare(Object o) {
+        if (!(o instanceof AInterval)) {
+            return -1;
+        }
+        AInterval d = (AInterval) o;
+        if (d.intervalStart == this.intervalStart && d.intervalEnd == this.intervalEnd && d.typetag == this.typetag) {
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+
+    public boolean equals(Object o) {
+        if (!(o instanceof AInterval)) {
+            return false;
+        } else {
+            AInterval t = (AInterval) o;
+            return (t.intervalStart == this.intervalStart || t.intervalEnd == this.intervalEnd
+                    && t.typetag == this.typetag);
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        return (int) (((int) (this.intervalStart ^ (this.intervalStart >>> 32))) * 31 + (int) (this.intervalEnd ^ (this.intervalEnd >>> 32)))
+                * 31 + (int) this.typetag;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.base.IAObject#accept(edu.uci.ics.asterix.om.visitors.IOMVisitor)
+     */
+    @Override
+    public void accept(IOMVisitor visitor) throws AsterixException {
+        visitor.visitAInterval(this);
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.base.IAObject#deepEqual(edu.uci.ics.asterix.om.base.IAObject)
+     */
+    @Override
+    public boolean deepEqual(IAObject obj) {
+        return equals(obj);
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.base.IAObject#hash()
+     */
+    @Override
+    public int hash() {
+        return hashCode();
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sbder = new StringBuilder();
+        sbder.append("AInterval: { ");
+        if (typetag == ATypeTag.DATE.serialize()) {
+            sbder.append("ADate: { ");
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(
+                    intervalStart * ADate.CHRONON_OF_DAY, 0, sbder, GregorianCalendarSystem.Fields.YEAR,
+                    GregorianCalendarSystem.Fields.DAY);
+            sbder.append(" }, ADate: {");
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(
+                    intervalEnd * ADate.CHRONON_OF_DAY, 0, sbder, GregorianCalendarSystem.Fields.YEAR,
+                    GregorianCalendarSystem.Fields.DAY);
+            sbder.append(" }");
+        } else if (typetag == ATypeTag.TIME.serialize()) {
+            sbder.append("ATime: { ");
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(intervalStart, 0, sbder,
+                    GregorianCalendarSystem.Fields.HOUR, GregorianCalendarSystem.Fields.MILLISECOND);
+            sbder.append(" }, ATime: { ");
+
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(intervalEnd, 0, sbder,
+                    GregorianCalendarSystem.Fields.HOUR, GregorianCalendarSystem.Fields.MILLISECOND);
+            sbder.append(" }");
+        } else if (typetag == ATypeTag.DATETIME.serialize()) {
+            sbder.append("ADateTime: { ");
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(intervalStart, 0, sbder,
+                    GregorianCalendarSystem.Fields.YEAR, GregorianCalendarSystem.Fields.MILLISECOND);
+            sbder.append(" }, ADateTime: { ");
+            GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(intervalEnd, 0, sbder,
+                    GregorianCalendarSystem.Fields.YEAR, GregorianCalendarSystem.Fields.MILLISECOND);
+            sbder.append(" }");
+        }
+        sbder.append(" }");
+        return sbder.toString();
+    }
+
+    public long getIntervalStart() {
+        return intervalStart;
+    }
+
+    public long getIntervalEnd() {
+        return intervalEnd;
+    }
+
+    public short getIntervalType() {
+        return typetag;
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        // TODO(madhusudancs): Remove this method when a printer based JSON serializer is implemented.
+        return null;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ALine.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ALine.java
index d96830a..dc420ed 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ALine.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ALine.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -52,4 +69,16 @@
     public String toString() {
         return "ALine: { p1: " + p1 + ", p2: " + p2 + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject line = new JSONObject();
+        line.put("p1", p1);
+        line.put("p2", p2);
+        json.put("ALine", line);
+
+        return json;
+    }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableCircle.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableCircle.java
index f85470e..84b35fb 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableCircle.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableCircle.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableCircle extends ACircle {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDate.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDate.java
index 78a87b8..7a5fa02 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDate.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDate.java
@@ -1,16 +1,27 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableDate extends ADate {
 
-    public AMutableDate(int year, int month, int day, int timezone) {
-        super(year, month, day, timezone);
+    public AMutableDate(int chrononTimeInDays) {
+        super(chrononTimeInDays);
     }
 
-    public void setValue(int year, int month, int day, int timezone) {
-        this.year = year;
-        this.month = month;
-        this.day = day;
-        this.timezone = timezone;
+    public void setValue(int chrononTimeInDays) {
+        this.chrononTimeInDay = chrononTimeInDays;
     }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDateTime.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDateTime.java
index 01e30a2..576c8e3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDateTime.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDateTime.java
@@ -1,23 +1,27 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableDateTime extends ADateTime {
 
-    public AMutableDateTime(int year, int month, int day, int hour, int minutes, int seconds, int milliseconds,
-            int microseconds, int timezone) {
-        super(year, month, day, hour, minutes, seconds, milliseconds, microseconds, timezone);
+    public AMutableDateTime(long chrononTime) {
+        super(chrononTime);
     }
 
-    public void setValue(int year, int month, int day, int hour, int minutes, int seconds, int milliseconds,
-            int microseconds, int timezone) {
-        this.year = year;
-        this.month = month;
-        this.day = day;
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.milliseconds = milliseconds;
-        this.microseconds = microseconds;
-        this.timezone = timezone;
+    public void setValue(long chrononTime) {
+        this.chrononTime = chrononTime;
     }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDouble.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDouble.java
index 849879e..e7fa620 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDouble.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDouble.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableDouble extends ADouble {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDuration.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDuration.java
index f776817..ecea300 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDuration.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableDuration.java
@@ -1,14 +1,28 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableDuration extends ADuration {
 
-    public AMutableDuration(int months, int seconds) {
-        super(months, seconds);
+    public AMutableDuration(int months, long milliseconds) {
+        super(months, milliseconds);
     }
 
-    public void setValue(int months, int seconds) {
-        this.months = months;
-        this.seconds = seconds;
+    public void setValue(int months, long milliseconds) {
+        this.chrononInMonth = months;
+        this.chrononInMillisecond = milliseconds;
     }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableFloat.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableFloat.java
index 4752631..fbc3de2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableFloat.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableFloat.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableFloat extends AFloat {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt16.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt16.java
index 3fdd468..3c242bd 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt16.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt16.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableInt16 extends AInt16 {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt32.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt32.java
index 94a97a8..dd15e62 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt32.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt32.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableInt32 extends AInt32 {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt64.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt64.java
index 41188ac..5c6a90c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt64.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt64.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableInt64 extends AInt64 {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt8.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt8.java
index f33a251..f8a3de9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt8.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInt8.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableInt8 extends AInt8 {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInterval.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInterval.java
new file mode 100644
index 0000000..055535f
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableInterval.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base;
+
+public class AMutableInterval extends AInterval {
+
+    public AMutableInterval(long intervalStart, long intervalEnd, byte typetag) {
+        super(intervalStart, intervalEnd, typetag);
+    }
+
+    public void setValue(long intervalStart, long intervalEnd, byte typetag) {
+        this.intervalStart = intervalStart;
+        this.intervalEnd = intervalEnd;
+        this.typetag = typetag;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableLine.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableLine.java
index 4204e7a..0786d51 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableLine.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableLine.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableLine extends ALine {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableOrderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableOrderedList.java
index aa581ea..619ebaa 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableOrderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableOrderedList.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import java.util.ArrayList;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint.java
index 520ae7a..b33f961 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutablePoint extends APoint {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint3D.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint3D.java
index 80687b1..3fa3b26 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint3D.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePoint3D.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutablePoint3D extends APoint3D {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePolygon.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePolygon.java
index f78ab17..2f592ff 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePolygon.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutablePolygon.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutablePolygon extends APolygon {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRecord.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRecord.java
index 19ccd2a..08b45a0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRecord.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRecord.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import edu.uci.ics.asterix.om.types.ARecordType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRectangle.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRectangle.java
index e156264..c05376c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRectangle.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableRectangle.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableRectangle extends ARectangle {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableString.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableString.java
index 8f778b3..4a3beec 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableString.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableString.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableString extends AString {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableTime.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableTime.java
index a23b8e3..10a7249 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableTime.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableTime.java
@@ -1,17 +1,27 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class AMutableTime extends ATime {
 
-    public AMutableTime(int hour, int minutes, int seconds, int milliseconds, int microseconds, int timezone) {
-        super(hour, minutes, seconds, milliseconds, microseconds, timezone);
+    public AMutableTime(int timeInMillisec) {
+        super(timeInMillisec);
     }
 
-    public void setValue(int hour, int minutes, int seconds, int milliseconds, int microseconds, int timezone) {
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.milliseconds = milliseconds;
-        this.timezone = timezone;
+    public void setValue(int timeInMillisec) {
+        this.chrononTime = timeInMillisec;
     }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
index ece4026..71c3986 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import java.util.ArrayList;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ANull.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ANull.java
index a5f5a3c..baaa00a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ANull.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ANull.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -38,4 +55,13 @@
     public String toString() {
         return "null";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ANull", "null");
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AOrderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AOrderedList.java
index 9c21986..36a92f3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AOrderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AOrderedList.java
@@ -1,7 +1,25 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import java.util.ArrayList;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -93,4 +111,17 @@
         sb.append(" ]");
         return sb.toString();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONArray list = new JSONArray();
+        for (IAObject v : values) {
+            list.put(v.toJSON());
+        }
+        json.put("AOrderedList", list);
+
+        return json;
+    }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint.java
index 1e80a8c..8bb44eb 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -52,4 +69,16 @@
     public String toString() {
         return "APoint: { x: " + x + ", y: " + y + " }";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject point = new JSONObject();
+        point.put("x", x);
+        point.put("y", y);
+        json.put("APoint", point);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint3D.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint3D.java
index e937b68..d15139a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint3D.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APoint3D.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -58,4 +75,17 @@
     public String toString() {
         return "APoint3D: { x: " + x + ", y: " + y + ", z: " + z + " }";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject point = new JSONObject();
+        point.put("x", x);
+        point.put("y", y);
+        point.put("z", z);
+        json.put("APoint3D", point);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APolygon.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APolygon.java
index cdeacac..ed21378 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APolygon.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/APolygon.java
@@ -1,5 +1,23 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -71,4 +89,17 @@
         sb.append(" ]");
         return sb.toString();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONArray polygon = new JSONArray();
+        for (int i = 0; i < points.length; i++) {
+            polygon.put(points[i].toJSON());
+        }
+        json.put("APolygon", polygon);
+
+        return json;
+    }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARecord.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARecord.java
index f1f1255..0035289 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARecord.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARecord.java
@@ -1,5 +1,23 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
@@ -73,4 +91,19 @@
         sb.append(" }");
         return sb.toString();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONArray record = new JSONArray();
+        for (int i = 0; i < fields.length; i++) {
+            JSONObject item = new JSONObject();
+            item.put(type.getFieldNames()[i], fields[i]);
+            record.put(item);
+        }
+        json.put("ARecord", record);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARectangle.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARectangle.java
index bcf9e8e..d82d351 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARectangle.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ARectangle.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -52,4 +69,16 @@
     public String toString() {
         return "ARectangle: { p1: " + p1 + ", p2: " + p2 + "}";
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONObject rectangle = new JSONObject();
+        rectangle.put("p1", p1);
+        rectangle.put("p2", p2);
+        json.put("ARectangle", rectangle);
+
+        return json;
+    }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
index ce78dcb..b1f2550 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
@@ -1,5 +1,22 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -53,4 +70,13 @@
     public int hash() {
         return hashCode();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AString", value);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ATime.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ATime.java
index f948ffc..b97ed51 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ATime.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ATime.java
@@ -1,49 +1,37 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
 
 public class ATime implements IAObject {
 
-    protected int hour;
-    protected int minutes;
-    protected int seconds;
-    protected int timezone;
-    protected int milliseconds;
-    protected int microseconds;
+    /**
+     * number of milliseconds since the beginning of a day represented by this time value
+     */
+    protected int chrononTime;
 
-    public ATime(int hour, int minutes, int seconds, int timezone) {
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.timezone = timezone;
-    }
-
-    public ATime(int hour, int minutes, int seconds, int milliseconds, int microseconds, int timezone) {
-        this.hour = hour;
-        this.minutes = minutes;
-        this.seconds = seconds;
-        this.milliseconds = milliseconds;
-        this.microseconds = microseconds;
-        this.timezone = timezone;
-    }
-
-    public int getHours() {
-        return hour;
-    }
-
-    public int getMinutes() {
-        return minutes;
-    }
-
-    public int getSeconds() {
-        return seconds;
-    }
-
-    public int getTimeZone() {
-        return timezone;
+    public ATime(int chrononTime) {
+        this.chrononTime = chrononTime;
     }
 
     @Override
@@ -51,29 +39,36 @@
         return BuiltinType.ATIME;
     }
 
-    public int getMicroseconds() {
-        return microseconds;
-    }
+    public int compare(Object o) {
+        if (!(o instanceof ATime)) {
+            return -1;
+        }
 
-    public int getMilliseconds() {
-        return milliseconds;
+        ATime d = (ATime) o;
+        if (this.chrononTime > d.chrononTime) {
+            return 1;
+        } else if (this.chrononTime < d.chrononTime) {
+            return -1;
+        } else {
+            return 0;
+        }
     }
 
     @Override
     public boolean equals(Object o) {
+
         if (!(o instanceof ATime)) {
             return false;
         } else {
             ATime t = (ATime) o;
-            return t.getMicroseconds() == microseconds && t.getMilliseconds() == milliseconds
-                    && t.getSeconds() == seconds && t.getMinutes() == minutes && t.getHours() == hour
-                    && t.getTimeZone() == timezone;
+            return t.chrononTime == this.chrononTime;
+
         }
     }
 
     @Override
     public int hashCode() {
-        return ((((timezone * 31 + hour) * 31 + minutes) * 31 + seconds) * 31 + milliseconds) * 31 + microseconds;
+        return chrononTime;
     }
 
     @Override
@@ -93,7 +88,25 @@
 
     @Override
     public String toString() {
-        return "ATime: { " + hour + ":" + minutes + ":" + seconds + ":" + milliseconds + ":" + microseconds + ":"
-                + timezone + " }";
+        StringBuilder sbder = new StringBuilder();
+        sbder.append("ATime: { ");
+        GregorianCalendarSystem.getInstance().getExtendStringRepWithTimezoneUntilField(chrononTime, 0, sbder,
+                GregorianCalendarSystem.Fields.HOUR, GregorianCalendarSystem.Fields.MILLISECOND);
+        sbder.append(" }");
+        return sbder.toString();
+
+    }
+
+    public int getChrononTime() {
+        return chrononTime;
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ATime", chrononTime);
+
+        return json;
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AUnorderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AUnorderedList.java
index 2ce8363..459ccf5 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AUnorderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AUnorderedList.java
@@ -1,7 +1,25 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import java.util.ArrayList;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.om.types.IAType;
@@ -93,4 +111,17 @@
         sb.append(" ]");
         return sb.toString();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        JSONArray list = new JSONArray();
+        for (IAObject v : values) {
+            list.put(v.toJSON());
+        }
+        json.put("AUnorderedList", list);
+
+        return json;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACollection.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACollection.java
index 03b7cad..db7134a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACollection.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACollection.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public interface IACollection extends IAObject {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACursor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACursor.java
index ecbbde3..2da505c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACursor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IACursor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * 
  */
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IAObject.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IAObject.java
index d98d181..bfc0aba 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IAObject.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/IAObject.java
@@ -1,13 +1,28 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+import edu.uci.ics.hyracks.api.dataflow.value.JSONSerializable;
 
 /**
  * Represents an object in Asterix.
  */
-public interface IAObject {
+public interface IAObject extends JSONSerializable {
     public IAType getType();
 
     public void accept(IOMVisitor visitor) throws AsterixException;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/InMemUtils.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/InMemUtils.java
index 905ca5f..4d4e2b1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/InMemUtils.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/InMemUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.base;
 
 public class InMemUtils {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java
new file mode 100644
index 0000000..c1fbcb2
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java
@@ -0,0 +1,343 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+
+public class ADateParserFactory implements IValueParserFactory {
+
+    public static final IValueParserFactory INSTANCE = new ADateParserFactory();
+
+    private static final long serialVersionUID = 1L;
+
+    private static final String dateErrorMessage = "Wrong input format for a date value";
+
+    private ADateParserFactory() {
+
+    }
+
+    @Override
+    public IValueParser createValueParser() {
+
+        return new IValueParser() {
+
+            @Override
+            public void parse(char[] buffer, int start, int length, DataOutput out) throws HyracksDataException {
+                try {
+                    out.writeInt((int) (parseDatePart(buffer, start, length) / GregorianCalendarSystem.CHRONON_OF_DAY));
+                } catch (IOException ex) {
+                    throw new HyracksDataException(ex);
+                }
+            }
+        };
+    }
+
+    /**
+     * Parse the given char sequence as a date string, and return the milliseconds represented by the date.
+     * 
+     * @param charAccessor
+     *            accessor for the char sequence
+     * @param isDateOnly
+     *            indicating whether it is a single date string, or it is the date part of a datetime string
+     * @param errorMessage
+     * @return
+     * @throws Exception
+     */
+    public static long parseDatePart(String dateString, int start, int length)
+            throws HyracksDataException {
+
+        int offset = 0;
+
+        int year = 0, month = 0, day = 0;
+        boolean positive = true;
+
+        boolean isExtendedForm = false;
+
+        if (dateString.charAt(start + offset) == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (dateString.charAt(start + offset + 4) == '-') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm) {
+            if (dateString.charAt(start + offset + 4) != '-' || dateString.charAt(start + offset + 7) != '-') {
+                throw new HyracksDataException("Missing dash in the date string as an extended form");
+            }
+        }
+
+        // year
+        for (int i = 0; i < 4; i++) {
+            if (dateString.charAt(start + offset + i) >= '0' && dateString.charAt(start + offset + i) <= '9') {
+                year = year * 10 + dateString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in year field");
+            }
+        }
+
+        if (year < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.YEAR.ordinal()]
+                || year > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.YEAR.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": year " + year);
+        }
+
+        offset += (isExtendedForm) ? 5 : 4;
+
+        // month
+        for (int i = 0; i < 2; i++) {
+            if ((dateString.charAt(start + offset + i) >= '0' && dateString.charAt(start + offset + i) <= '9')) {
+                month = month * 10 + dateString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in month field");
+            }
+        }
+
+        if (month < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MONTH.ordinal()]
+                || month > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MONTH.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": month " + month);
+        }
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // day
+        for (int i = 0; i < 2; i++) {
+            if ((dateString.charAt(start + offset + i) >= '0' && dateString.charAt(start + offset + i) <= '9')) {
+                day = day * 10 + dateString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in day field");
+            }
+        }
+
+        if (day < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.DAY.ordinal()]
+                || day > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.DAY.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": day " + day);
+        }
+
+        offset += 2;
+
+        if (!positive) {
+            year *= -1;
+        }
+
+        if (length > offset) {
+            throw new HyracksDataException("Too many chars for a date only value");
+        }
+        
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+            throw new HyracksDataException(dateErrorMessage);
+        }
+        
+        return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
+    }
+    
+    /**
+     * A copy-and-paste of {@link #parseDatePart(String, int, int)} but for a char array, in order
+     * to avoid object creation.
+     * 
+     * @param dateString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static long parseDatePart(char[] dateString, int start, int length)
+            throws HyracksDataException {
+
+        int offset = 0;
+
+        int year = 0, month = 0, day = 0;
+        boolean positive = true;
+
+        boolean isExtendedForm = false;
+
+        if (dateString[start + offset] == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (dateString[start + offset + 4] == '-') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm) {
+            if (dateString[start + offset + 4] != '-' || dateString[start + offset + 7] != '-') {
+                throw new HyracksDataException("Missing dash in the date string as an extended form");
+            }
+        }
+
+        // year
+        for (int i = 0; i < 4; i++) {
+            if (dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9') {
+                year = year * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in year field");
+            }
+        }
+
+        if (year < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.YEAR.ordinal()]
+                || year > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.YEAR.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": year " + year);
+        }
+
+        offset += (isExtendedForm) ? 5 : 4;
+
+        // month
+        for (int i = 0; i < 2; i++) {
+            if ((dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9')) {
+                month = month * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in month field");
+            }
+        }
+
+        if (month < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MONTH.ordinal()]
+                || month > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MONTH.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": month " + month);
+        }
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // day
+        for (int i = 0; i < 2; i++) {
+            if ((dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9')) {
+                day = day * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in day field");
+            }
+        }
+
+        if (day < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.DAY.ordinal()]
+                || day > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.DAY.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": day " + day);
+        }
+
+        offset += 2;
+
+        if (!positive) {
+            year *= -1;
+        }
+
+        if (length > offset) {
+            throw new HyracksDataException("Too many chars for a date only value");
+        }
+        
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+            throw new HyracksDataException(dateErrorMessage);
+        }
+        
+        return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
+    }
+
+    /**
+     * A copy-and-paste of {@link #parseDatePart(String, int, int)} but for a byte array, in order
+     * to avoid object creation.
+     * 
+     * @param dateString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static long parseDatePart(byte[] dateString, int start, int length)
+            throws HyracksDataException {
+
+        int offset = 0;
+
+        int year = 0, month = 0, day = 0;
+        boolean positive = true;
+
+        boolean isExtendedForm = false;
+
+        if (dateString[start + offset] == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (dateString[start + offset + 4] == '-') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm) {
+            if (dateString[start + offset + 4] != '-' || dateString[start + offset + 7] != '-') {
+                throw new HyracksDataException("Missing dash in the date string as an extended form");
+            }
+        }
+
+        // year
+        for (int i = 0; i < 4; i++) {
+            if (dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9') {
+                year = year * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in year field");
+            }
+        }
+
+        if (year < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.YEAR.ordinal()]
+                || year > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.YEAR.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": year " + year);
+        }
+
+        offset += (isExtendedForm) ? 5 : 4;
+
+        // month
+        for (int i = 0; i < 2; i++) {
+            if ((dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9')) {
+                month = month * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in month field");
+            }
+        }
+
+        if (month < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MONTH.ordinal()]
+                || month > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MONTH.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": month " + month);
+        }
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // day
+        for (int i = 0; i < 2; i++) {
+            if ((dateString[start + offset + i] >= '0' && dateString[start + offset + i] <= '9')) {
+                day = day * 10 + dateString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException("Non-numeric value in day field");
+            }
+        }
+
+        if (day < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.DAY.ordinal()]
+                || day > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.DAY.ordinal()]) {
+            throw new HyracksDataException(dateErrorMessage + ": day " + day);
+        }
+
+        offset += 2;
+
+        if (!positive) {
+            year *= -1;
+        }
+
+        if (length > offset) {
+            throw new HyracksDataException("Too many chars for a date only value");
+        }
+        
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+            throw new HyracksDataException(dateErrorMessage);
+        }
+        
+        return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateTimeParserFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateTimeParserFactory.java
new file mode 100644
index 0000000..c95ac3a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateTimeParserFactory.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+
+public class ADateTimeParserFactory implements IValueParserFactory {
+
+    public static final IValueParserFactory INSTANCE = new ADateTimeParserFactory();
+
+    private static final long serialVersionUID = 1L;
+
+    private static final String dateTimeErrorMessage = "Wrong Input Format for a DateTime Value";
+
+    private ADateTimeParserFactory() {
+
+    }
+
+    @Override
+    public IValueParser createValueParser() {
+
+        return new IValueParser() {
+
+            @Override
+            public void parse(char[] buffer, int start, int length, DataOutput out) throws HyracksDataException {
+                long chrononTimeInMs = 0;
+
+                short timeOffset = (short) ((buffer[start] == '-') ? 1 : 0);
+
+                timeOffset += 8;
+
+                if (buffer[start + timeOffset] != 'T') {
+                    timeOffset += 2;
+                    if (buffer[start + timeOffset] != 'T') {
+                        throw new HyracksDataException(dateTimeErrorMessage + ": missing T");
+                    }
+                }
+
+                chrononTimeInMs = ADateParserFactory.parseDatePart(buffer, start, timeOffset);
+
+                chrononTimeInMs += ATimeParserFactory.parseTimePart(buffer, start + timeOffset + 1, length - timeOffset
+                        - 1);
+
+                try {
+                    out.writeLong(chrononTimeInMs);
+                } catch (IOException ex) {
+                    throw new HyracksDataException(ex);
+                }
+            }
+        };
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADurationParserFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADurationParserFactory.java
new file mode 100644
index 0000000..de5a6a1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADurationParserFactory.java
@@ -0,0 +1,454 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+
+public class ADurationParserFactory implements IValueParserFactory {
+
+    public static final IValueParserFactory INSTANCE = new ADurationParserFactory();
+
+    private static final long serialVersionUID = 1L;
+
+    private static final String durationErrorMessage = "Wrong Input Format for a Duration Value";
+
+    private ADurationParserFactory() {
+
+    }
+
+    @Override
+    public IValueParser createValueParser() {
+        final AMutableDuration aMutableDuration = new AMutableDuration(0, 0);
+        return new IValueParser() {
+
+            @Override
+            public void parse(char[] buffer, int start, int length, DataOutput out) throws HyracksDataException {
+                parseDuration(buffer, start, length, aMutableDuration);
+                try {
+                    out.writeInt(aMutableDuration.getMonths());
+                    out.writeLong(aMutableDuration.getMilliseconds());
+                } catch (IOException ex) {
+                    throw new HyracksDataException(ex);
+                }
+            }
+        };
+    }
+
+    private enum State {
+        NOTHING_READ,
+        YEAR,
+        MONTH,
+        DAY,
+        TIME,
+        HOUR,
+        MIN,
+        MILLISEC,
+        SEC;
+    };
+
+    public static void parseDuration(String durationString, int start, int length, AMutableDuration aDuration)
+            throws HyracksDataException {
+
+        boolean positive = true;
+        int offset = 0;
+        int value = 0, hour = 0, minute = 0, second = 0, millisecond = 0, year = 0, month = 0, day = 0;
+        State state = State.NOTHING_READ;
+
+        if (durationString.charAt(start + offset) == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (durationString.charAt(start + offset) != 'P') {
+            throw new HyracksDataException(durationErrorMessage + ": Missing leading 'P'.");
+        }
+
+        offset++;
+
+        for (; offset < length; offset++) {
+            if (durationString.charAt(start + offset) >= '0' && durationString.charAt(start + offset) <= '9') {
+                // accumulate the digit fields
+                value = value * 10 + durationString.charAt(start + offset) - '0';
+            } else {
+                switch (durationString.charAt(start + offset)) {
+                    case 'Y':
+                        if (state.compareTo(State.YEAR) < 0) {
+                            year = value;
+                            state = State.YEAR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong YEAR feild.");
+                        }
+                        break;
+                    case 'M':
+                        if (state.compareTo(State.TIME) < 0) {
+                            if (state.compareTo(State.MONTH) < 0) {
+                                month = value;
+                                state = State.MONTH;
+                            } else {
+                                throw new HyracksDataException(durationErrorMessage + ": wrong MONTH field.");
+                            }
+                        } else if (state.compareTo(State.MIN) < 0) {
+                            minute = value;
+                            state = State.MIN;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MIN field.");
+                        }
+                        break;
+                    case 'D':
+                        if (state.compareTo(State.DAY) < 0) {
+                            day = value;
+                            state = State.DAY;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong DAY field");
+                        }
+                        break;
+                    case 'T':
+                        if (state.compareTo(State.TIME) < 0) {
+                            state = State.TIME;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong TIME field.");
+                        }
+                        break;
+
+                    case 'H':
+                        if (state.compareTo(State.HOUR) < 0) {
+                            hour = value;
+                            state = State.HOUR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong HOUR field.");
+                        }
+                        break;
+                    case '.':
+                        if (state.compareTo(State.MILLISEC) < 0) {
+                            int i = 1;
+                            for (; offset + i < length; i++) {
+                                if (durationString.charAt(start + offset + i) >= '0'
+                                        && durationString.charAt(start + offset + i) <= '9') {
+                                    if (i < 4) {
+                                        millisecond = millisecond * 10
+                                                + (durationString.charAt(start + offset + i) - '0');
+                                    } else {
+                                        throw new HyracksDataException(durationErrorMessage
+                                                + ": wrong MILLISECOND field.");
+                                    }
+                                } else {
+                                    break;
+                                }
+                            }
+                            offset += i;
+                            state = State.MILLISEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MILLISECOND field.");
+                        }
+                    case 'S':
+                        if (state.compareTo(State.SEC) < 0) {
+                            second = value;
+                            state = State.SEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong SECOND field.");
+                        }
+                        break;
+                    default:
+                        throw new HyracksDataException(durationErrorMessage + ": wrong format for duration.");
+
+                }
+                value = 0;
+            }
+        }
+
+        if (state.compareTo(State.TIME) == 0) {
+            throw new HyracksDataException(durationErrorMessage + ": no time fields after time separator.");
+        }
+
+        short temp = 1;
+        if (!positive) {
+            temp = -1;
+        }
+
+        aDuration.setValue(temp * (year * 12 + month), temp
+                * (day * 24 * 3600 * 1000L + 3600 * 1000L * hour + 60 * minute * 1000L + second * 1000L + millisecond));
+
+    }
+
+    /**
+     * Copy-and-paste the code in {@link #parseDuration(String, int, int, AMutableDuration)} in order to eliminate
+     * object creation.
+     * 
+     * @param charAccessor
+     * @param start
+     * @param length
+     * @param aDuration
+     * @throws HyracksDataException
+     */
+    public static void parseDuration(char[] charAccessor, int start, int length, AMutableDuration aDuration)
+            throws HyracksDataException {
+
+        boolean positive = true;
+        int offset = 0;
+        int value = 0, hour = 0, minute = 0, second = 0, millisecond = 0, year = 0, month = 0, day = 0;
+        State state = State.NOTHING_READ;
+
+        if (charAccessor[start + offset] == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (charAccessor[start + offset] != 'P') {
+            throw new HyracksDataException(durationErrorMessage + ": Missing leading 'P'.");
+        }
+
+        offset++;
+
+        for (; offset < length; offset++) {
+            if (charAccessor[start + offset] >= '0' && charAccessor[start + offset] <= '9') {
+                // accumulate the digit fields
+                value = value * 10 + charAccessor[start + offset] - '0';
+            } else {
+                switch (charAccessor[start + offset]) {
+                    case 'Y':
+                        if (state.compareTo(State.YEAR) < 0) {
+                            year = value;
+                            state = State.YEAR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong YEAR feild.");
+                        }
+                        break;
+                    case 'M':
+                        if (state.compareTo(State.TIME) < 0) {
+                            if (state.compareTo(State.MONTH) < 0) {
+                                month = value;
+                                state = State.MONTH;
+                            } else {
+                                throw new HyracksDataException(durationErrorMessage + ": wrong MONTH field.");
+                            }
+                        } else if (state.compareTo(State.MIN) < 0) {
+                            minute = value;
+                            state = State.MIN;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MIN field.");
+                        }
+                        break;
+                    case 'D':
+                        if (state.compareTo(State.DAY) < 0) {
+                            day = value;
+                            state = State.DAY;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong DAY field");
+                        }
+                        break;
+                    case 'T':
+                        if (state.compareTo(State.TIME) < 0) {
+                            state = State.TIME;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong TIME field.");
+                        }
+                        break;
+
+                    case 'H':
+                        if (state.compareTo(State.HOUR) < 0) {
+                            hour = value;
+                            state = State.HOUR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong HOUR field.");
+                        }
+                        break;
+                    case '.':
+                        if (state.compareTo(State.MILLISEC) < 0) {
+                            int i = 1;
+                            for (; offset + i < length; i++) {
+                                if (charAccessor[start + offset + i] >= '0' && charAccessor[start + offset + i] <= '9') {
+                                    if (i < 4) {
+                                        millisecond = millisecond * 10 + (charAccessor[start + offset + i] - '0');
+                                    } else {
+                                        throw new HyracksDataException(durationErrorMessage
+                                                + ": wrong MILLISECOND field.");
+                                    }
+                                } else {
+                                    break;
+                                }
+                            }
+                            offset += i;
+                            state = State.MILLISEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MILLISECOND field.");
+                        }
+                    case 'S':
+                        if (state.compareTo(State.SEC) < 0) {
+                            second = value;
+                            state = State.SEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong SECOND field.");
+                        }
+                        break;
+                    default:
+                        throw new HyracksDataException(durationErrorMessage + ": wrong format for duration.");
+
+                }
+                value = 0;
+            }
+        }
+
+        if (state.compareTo(State.TIME) == 0) {
+            throw new HyracksDataException(durationErrorMessage + ": no time fields after time separator.");
+        }
+
+        short temp = 1;
+        if (!positive) {
+            temp = -1;
+        }
+
+        aDuration.setValue(temp * (year * 12 + month), temp
+                * (day * 24 * 3600 * 1000L + 3600 * 1000L * hour + 60 * minute * 1000L + second * 1000L + millisecond));
+
+    }
+
+    /**
+     * Copy-and-paste the code in {@link #parseDuration(String, int, int, AMutableDuration)} in order to eliminate
+     * object creation.
+     * 
+     * @param charAccessor
+     * @param start
+     * @param length
+     * @param aDuration
+     * @throws HyracksDataException
+     */
+    public static void parseDuration(byte[] charAccessor, int start, int length, AMutableDuration aDuration)
+            throws HyracksDataException {
+
+        boolean positive = true;
+        int offset = 0;
+        int value = 0, hour = 0, minute = 0, second = 0, millisecond = 0, year = 0, month = 0, day = 0;
+        State state = State.NOTHING_READ;
+
+        if (charAccessor[start + offset] == '-') {
+            offset++;
+            positive = false;
+        }
+
+        if (charAccessor[start + offset] != 'P') {
+            throw new HyracksDataException(durationErrorMessage + ": Missing leading 'P'.");
+        }
+
+        offset++;
+
+        for (; offset < length; offset++) {
+            if (charAccessor[start + offset] >= '0' && charAccessor[start + offset] <= '9') {
+                // accumulate the digit fields
+                value = value * 10 + charAccessor[start + offset] - '0';
+            } else {
+                switch (charAccessor[start + offset]) {
+                    case 'Y':
+                        if (state.compareTo(State.YEAR) < 0) {
+                            year = value;
+                            state = State.YEAR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong YEAR feild.");
+                        }
+                        break;
+                    case 'M':
+                        if (state.compareTo(State.TIME) < 0) {
+                            if (state.compareTo(State.MONTH) < 0) {
+                                month = value;
+                                state = State.MONTH;
+                            } else {
+                                throw new HyracksDataException(durationErrorMessage + ": wrong MONTH field.");
+                            }
+                        } else if (state.compareTo(State.MIN) < 0) {
+                            minute = value;
+                            state = State.MIN;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MIN field.");
+                        }
+                        break;
+                    case 'D':
+                        if (state.compareTo(State.DAY) < 0) {
+                            day = value;
+                            state = State.DAY;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong DAY field");
+                        }
+                        break;
+                    case 'T':
+                        if (state.compareTo(State.TIME) < 0) {
+                            state = State.TIME;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong TIME field.");
+                        }
+                        break;
+
+                    case 'H':
+                        if (state.compareTo(State.HOUR) < 0) {
+                            hour = value;
+                            state = State.HOUR;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong HOUR field.");
+                        }
+                        break;
+                    case '.':
+                        if (state.compareTo(State.MILLISEC) < 0) {
+                            int i = 1;
+                            for (; offset + i < length; i++) {
+                                if (charAccessor[start + offset + i] >= '0' && charAccessor[start + offset + i] <= '9') {
+                                    if (i < 4) {
+                                        millisecond = millisecond * 10 + (charAccessor[start + offset + i] - '0');
+                                    } else {
+                                        throw new HyracksDataException(durationErrorMessage
+                                                + ": wrong MILLISECOND field.");
+                                    }
+                                } else {
+                                    break;
+                                }
+                            }
+                            offset += i;
+                            state = State.MILLISEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong MILLISECOND field.");
+                        }
+                    case 'S':
+                        if (state.compareTo(State.SEC) < 0) {
+                            second = value;
+                            state = State.SEC;
+                        } else {
+                            throw new HyracksDataException(durationErrorMessage + ": wrong SECOND field.");
+                        }
+                        break;
+                    default:
+                        throw new HyracksDataException(durationErrorMessage + ": wrong format for duration.");
+
+                }
+                value = 0;
+            }
+        }
+
+        if (state.compareTo(State.TIME) == 0) {
+            throw new HyracksDataException(durationErrorMessage + ": no time fields after time separator.");
+        }
+
+        short temp = 1;
+        if (!positive) {
+            temp = -1;
+        }
+
+        aDuration.setValue(temp * (year * 12 + month), temp
+                * (day * 24 * 3600 * 1000L + 3600 * 1000L * hour + 60 * minute * 1000L + second * 1000L + millisecond));
+
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ATimeParserFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ATimeParserFactory.java
new file mode 100644
index 0000000..c0f0957
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ATimeParserFactory.java
@@ -0,0 +1,540 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+
+public class ATimeParserFactory implements IValueParserFactory {
+
+    public static final IValueParserFactory INSTANCE = new ATimeParserFactory();
+
+    private static final long serialVersionUID = 1L;
+
+    private static final String timeErrorMessage = "Wrong Input Format for a Time Value";
+
+    private ATimeParserFactory() {
+
+    }
+
+    @Override
+    public IValueParser createValueParser() {
+
+        return new IValueParser() {
+
+            @Override
+            public void parse(char[] buffer, int start, int length, DataOutput out) throws HyracksDataException {
+                try {
+                    out.writeInt(parseTimePart(buffer, start, length));
+                } catch (IOException ex) {
+                    throw new HyracksDataException(ex);
+                }
+            }
+        };
+    }
+
+    /**
+     * Parse the given string as a time string, and return the milliseconds represented by the time.
+     * 
+     * @param timeString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimePart(String timeString, int start, int length) throws HyracksDataException {
+
+        int offset = 0;
+
+        int hour = 0, min = 0, sec = 0, millis = 0;
+        int timezone = 0;
+
+        boolean isExtendedForm = false;
+        if (timeString.charAt(start + offset + 2) == ':') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm
+                && (timeString.charAt(start + offset + 2) != ':' || timeString.charAt(start + offset + 5) != ':')) {
+            throw new HyracksDataException(timeErrorMessage + ": Missing colon in an extended time format.");
+        }
+        // hour
+        for (int i = 0; i < 2; i++) {
+            if ((timeString.charAt(start + offset + i) >= '0' && timeString.charAt(start + offset + i) <= '9')) {
+                hour = hour * 10 + timeString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in hour field");
+            }
+        }
+
+        if (hour < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.HOUR.ordinal()]
+                || hour > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.HOUR.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": hour " + hour);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // minute
+        for (int i = 0; i < 2; i++) {
+            if ((timeString.charAt(start + offset + i) >= '0' && timeString.charAt(start + offset + i) <= '9')) {
+                min = min * 10 + timeString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in minute field");
+            }
+        }
+
+        if (min < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]
+                || min > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": min " + min);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // second
+        for (int i = 0; i < 2; i++) {
+            if ((timeString.charAt(start + offset + i) >= '0' && timeString.charAt(start + offset + i) <= '9')) {
+                sec = sec * 10 + timeString.charAt(start + offset + i) - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in second field");
+            }
+        }
+
+        if (sec < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.SECOND.ordinal()]
+                || sec > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.SECOND.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": sec " + sec);
+        }
+
+        offset += 2;
+
+        if ((isExtendedForm && length > offset && timeString.charAt(start + offset) == '.')
+                || (!isExtendedForm && length > offset)) {
+
+            offset += (isExtendedForm) ? 1 : 0;
+            int i = 0;
+            for (; i < 3 && offset + i < length; i++) {
+                if (timeString.charAt(start + offset + i) >= '0' && timeString.charAt(start + offset + i) <= '9') {
+                    millis = millis * 10 + timeString.charAt(start + offset + i) - '0';
+                } else {
+                    break;
+                }
+            }
+
+            offset += i;
+
+            for (; i < 3; i++) {
+                millis = millis * 10;
+            }
+
+            // error is thrown if more than three digits are seen for the millisecond part
+            if (length > offset && timeString.charAt(start + offset) >= '0' && timeString.charAt(start + offset) <= '9') {
+                throw new HyracksDataException(timeErrorMessage + ": too many fields for millisecond.");
+            }
+        }
+
+        if (length > offset) {
+            timezone = parseTimezonePart(timeString, start + offset);
+        }
+
+        return GregorianCalendarSystem.getInstance().getChronon(hour, min, sec, millis, timezone);
+    }
+
+    /**
+     * Parse the given string as a time string, and parse the timezone field.
+     * 
+     * @param timeString
+     * @param start
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimezonePart(String timeString, int start) throws HyracksDataException {
+        int timezone = 0;
+
+        if (timeString.charAt(start) != 'Z') {
+            if ((timeString.charAt(start) != '+' && timeString.charAt(start) != '-')) {
+                throw new HyracksDataException("Wrong timezone format: missing sign or missing colon for a time zone");
+            }
+
+            short timezoneHour = 0;
+            short timezoneMinute = 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString.charAt(start + 1 + i) >= '0' && timeString.charAt(start + 1 + i) <= '9')) {
+                    timezoneHour = (short) (timezoneHour * 10 + timeString.charAt(start + 1 + i) - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone hour field");
+                }
+            }
+
+            if (timezoneHour < GregorianCalendarSystem.TIMEZONE_HOUR_MIN
+                    || timezoneHour > GregorianCalendarSystem.TIMEZONE_HOUR_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone hour " + timezoneHour);
+            }
+
+            int temp_offset = (timeString.charAt(start + 3) == ':') ? 1 : 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString.charAt(start + temp_offset + 3 + i) >= '0' && timeString.charAt(start + temp_offset + 3
+                        + i) <= '9')) {
+                    timezoneMinute = (short) (timezoneMinute * 10 + timeString.charAt(start + temp_offset + 3 + i) - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone minute field");
+                }
+            }
+
+            if (timezoneMinute < GregorianCalendarSystem.TIMEZONE_MIN_MIN
+                    || timezoneMinute > GregorianCalendarSystem.TIMEZONE_MIN_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone minute " + timezoneMinute);
+            }
+
+            if (timeString.charAt(start) == '-') {
+                timezone = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
+            } else {
+                timezone = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
+            }
+        }
+        return timezone;
+    }
+
+    /**
+     * Similar to {@link #parseTimePart(String, int, int)} but use a char array as input; although this is almost
+     * a copy-and-past code but it avoids object creation.
+     * 
+     * @param timeString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimePart(char[] timeString, int start, int length) throws HyracksDataException {
+
+        int offset = 0;
+
+        int hour = 0, min = 0, sec = 0, millis = 0;
+        int timezone = 0;
+
+        boolean isExtendedForm = false;
+        if (timeString[start + offset + 2] == ':') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm && (timeString[start + offset + 2] != ':' || timeString[start + offset + 5] != ':')) {
+            throw new HyracksDataException(timeErrorMessage + ": Missing colon in an extended time format.");
+        }
+        // hour
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                hour = hour * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in hour field");
+            }
+        }
+
+        if (hour < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.HOUR.ordinal()]
+                || hour > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.HOUR.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": hour " + hour);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // minute
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                min = min * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in minute field");
+            }
+        }
+
+        if (min < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]
+                || min > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": min " + min);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // second
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                sec = sec * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in second field");
+            }
+        }
+
+        if (sec < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.SECOND.ordinal()]
+                || sec > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.SECOND.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": sec " + sec);
+        }
+
+        offset += 2;
+
+        if ((isExtendedForm && length > offset && timeString[start + offset] == '.')
+                || (!isExtendedForm && length > offset)) {
+
+            offset += (isExtendedForm) ? 1 : 0;
+            int i = 0;
+            for (; i < 3 && offset + i < length; i++) {
+                if (timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9') {
+                    millis = millis * 10 + timeString[start + offset + i] - '0';
+                } else {
+                    break;
+                }
+            }
+
+            offset += i;
+
+            for (; i < 3; i++) {
+                millis = millis * 10;
+            }
+
+            // error is thrown if more than three digits are seen for the millisecond part
+            if (length > offset && timeString[start + offset] >= '0' && timeString[start + offset] <= '9') {
+                throw new HyracksDataException(timeErrorMessage + ": too many fields for millisecond.");
+            }
+        }
+
+        if (length > offset) {
+            timezone = parseTimezonePart(timeString, start + offset);
+        }
+
+        return GregorianCalendarSystem.getInstance().getChronon(hour, min, sec, millis, timezone);
+    }
+
+    /**
+     * Similar to {@link #parseTimezonePart(String, int)} but use a char array as input; although this is almost
+     * a copy-and-past code but it avoids object creation.
+     * 
+     * @param timeString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimezonePart(char[] timeString, int start) throws HyracksDataException {
+        int timezone = 0;
+
+        if (timeString[start] != 'Z') {
+            if ((timeString[start] != '+' && timeString[start] != '-')) {
+                throw new HyracksDataException("Wrong timezone format: missing sign or missing colon for a time zone");
+            }
+
+            short timezoneHour = 0;
+            short timezoneMinute = 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString[start + 1 + i] >= '0' && timeString[start + 1 + i] <= '9')) {
+                    timezoneHour = (short) (timezoneHour * 10 + timeString[start + 1 + i] - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone hour field");
+                }
+            }
+
+            if (timezoneHour < GregorianCalendarSystem.TIMEZONE_HOUR_MIN
+                    || timezoneHour > GregorianCalendarSystem.TIMEZONE_HOUR_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone hour " + timezoneHour);
+            }
+
+            int temp_offset = (timeString[start + 3] == ':') ? 1 : 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString[start + temp_offset + 3 + i] >= '0' && timeString[start + temp_offset + 3 + i] <= '9')) {
+                    timezoneMinute = (short) (timezoneMinute * 10 + timeString[start + temp_offset + 3 + i] - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone minute field");
+                }
+            }
+
+            if (timezoneMinute < GregorianCalendarSystem.TIMEZONE_MIN_MIN
+                    || timezoneMinute > GregorianCalendarSystem.TIMEZONE_MIN_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone minute " + timezoneMinute);
+            }
+
+            if (timeString[start] == '-') {
+                timezone = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
+            } else {
+                timezone = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
+            }
+        }
+        return timezone;
+    }
+
+    /**
+     * Similar to {@link #parseTimePart(String, int, int)} but use a byte array as input; although this is almost
+     * a copy-and-past code but it avoids object creation.
+     * 
+     * @param timeString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimePart(byte[] timeString, int start, int length) throws HyracksDataException {
+
+        int offset = 0;
+
+        int hour = 0, min = 0, sec = 0, millis = 0;
+        int timezone = 0;
+
+        boolean isExtendedForm = false;
+        if (timeString[start + offset + 2] == ':') {
+            isExtendedForm = true;
+        }
+
+        if (isExtendedForm && (timeString[start + offset + 2] != ':' || timeString[start + offset + 5] != ':')) {
+            throw new HyracksDataException(timeErrorMessage + ": Missing colon in an extended time format.");
+        }
+        // hour
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                hour = hour * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in hour field");
+            }
+        }
+
+        if (hour < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.HOUR.ordinal()]
+                || hour > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.HOUR.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": hour " + hour);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // minute
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                min = min * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in minute field");
+            }
+        }
+
+        if (min < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]
+                || min > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.MINUTE.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": min " + min);
+        }
+
+        offset += (isExtendedForm) ? 3 : 2;
+
+        // second
+        for (int i = 0; i < 2; i++) {
+            if ((timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9')) {
+                sec = sec * 10 + timeString[start + offset + i] - '0';
+            } else {
+                throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in second field");
+            }
+        }
+
+        if (sec < GregorianCalendarSystem.FIELD_MINS[GregorianCalendarSystem.Fields.SECOND.ordinal()]
+                || sec > GregorianCalendarSystem.FIELD_MAXS[GregorianCalendarSystem.Fields.SECOND.ordinal()]) {
+            throw new HyracksDataException(timeErrorMessage + ": sec " + sec);
+        }
+
+        offset += 2;
+
+        if ((isExtendedForm && length > offset && timeString[start + offset] == '.')
+                || (!isExtendedForm && length > offset)) {
+
+            offset += (isExtendedForm) ? 1 : 0;
+            int i = 0;
+            for (; i < 3 && offset + i < length; i++) {
+                if (timeString[start + offset + i] >= '0' && timeString[start + offset + i] <= '9') {
+                    millis = millis * 10 + timeString[start + offset + i] - '0';
+                } else {
+                    break;
+                }
+            }
+
+            offset += i;
+
+            for (; i < 3; i++) {
+                millis = millis * 10;
+            }
+
+            // error is thrown if more than three digits are seen for the millisecond part
+            if (length > offset && timeString[start + offset] >= '0' && timeString[start + offset] <= '9') {
+                throw new HyracksDataException(timeErrorMessage + ": too many fields for millisecond.");
+            }
+        }
+
+        if (length > offset) {
+            timezone = parseTimezonePart(timeString, start + offset);
+        }
+
+        return GregorianCalendarSystem.getInstance().getChronon(hour, min, sec, millis, timezone);
+    }
+
+    /**
+     * Similar to {@link #parseTimezonePart(String, int)} but use a byte array as input; although this is almost
+     * a copy-and-past code but it avoids object creation.
+     * 
+     * @param timeString
+     * @param start
+     * @param length
+     * @return
+     * @throws HyracksDataException
+     */
+    public static int parseTimezonePart(byte[] timeString, int start) throws HyracksDataException {
+        int timezone = 0;
+
+        if (timeString[start] != 'Z') {
+            if ((timeString[start] != '+' && timeString[start] != '-')) {
+                throw new HyracksDataException("Wrong timezone format: missing sign or missing colon for a time zone");
+            }
+
+            short timezoneHour = 0;
+            short timezoneMinute = 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString[start + 1 + i] >= '0' && timeString[start + 1 + i] <= '9')) {
+                    timezoneHour = (short) (timezoneHour * 10 + timeString[start + 1 + i] - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone hour field");
+                }
+            }
+
+            if (timezoneHour < GregorianCalendarSystem.TIMEZONE_HOUR_MIN
+                    || timezoneHour > GregorianCalendarSystem.TIMEZONE_HOUR_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone hour " + timezoneHour);
+            }
+
+            int temp_offset = (timeString[start + 3] == ':') ? 1 : 0;
+
+            for (int i = 0; i < 2; i++) {
+                if ((timeString[start + temp_offset + 3 + i] >= '0' && timeString[start + temp_offset + 3 + i] <= '9')) {
+                    timezoneMinute = (short) (timezoneMinute * 10 + timeString[start + temp_offset + 3 + i] - '0');
+                } else {
+                    throw new HyracksDataException(timeErrorMessage + ": Non-numeric value in timezone minute field");
+                }
+            }
+
+            if (timezoneMinute < GregorianCalendarSystem.TIMEZONE_MIN_MIN
+                    || timezoneMinute > GregorianCalendarSystem.TIMEZONE_MIN_MAX) {
+                throw new HyracksDataException(timeErrorMessage + ": time zone minute " + timezoneMinute);
+            }
+
+            if (timeString[start] == '-') {
+                timezone = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
+            } else {
+                timezone = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
+            }
+        }
+        return timezone;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/DurationArithmeticOperations.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/DurationArithmeticOperations.java
new file mode 100644
index 0000000..9d6bc2f
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/DurationArithmeticOperations.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+/**
+ * Algorithms for duration related arithmetic operations.
+ */
+public class DurationArithmeticOperations {
+
+    private final static GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+    /**
+     * Add a duration (with yearMonth and dayTime) onto a time point. The algorithm works as described in
+     * <a
+     * href="http://www.w3.org/TR/xmlschema-2/#adding-durations-to-dateTimes">"XML: adding durations to dateTimes"</a>.
+     * <p/>
+     * The basic algorithm is like this: duration is applied to the time point as two separated fields: year-month field
+     * and day-time field. Year-month field is applied firstly by reserving the correct day within the month's range
+     * (for example add 1M to 03-31 will return 04-30). Then day-time field is applied.
+     * <p/>
+     * 
+     * @param pointChronon
+     * @param yearMonthDuration
+     * @param dayTimeDuration
+     * @return
+     */
+    public static long addDuration(long pointChronon, int yearMonthDuration, long dayTimeDuration) {
+
+        int year = calSystem.getYear(pointChronon);
+        int month = calSystem.getMonthOfYear(pointChronon, year);
+        int day = calSystem.getDayOfMonthYear(pointChronon, year, month);
+        int hour = calSystem.getHourOfDay(pointChronon);
+        int min = calSystem.getMinOfHour(pointChronon);
+        int sec = calSystem.getSecOfMin(pointChronon);
+        int ms = calSystem.getMillisOfSec(pointChronon);
+
+        // Apply the year-month duration
+        int carry = yearMonthDuration / 12;
+        month += (yearMonthDuration % 12);
+
+        if (month < 0) {
+            month += 12;
+            carry -= 1;
+        } else if (month > 12) {
+            month -= 12;
+            carry += 1;
+        }
+
+        year += carry;
+
+        boolean isLeapYear = calSystem.isLeapYear(year);
+
+        if (isLeapYear) {
+            if (day > GregorianCalendarSystem.DAYS_OF_MONTH_ORDI[month - 1]) {
+                day = GregorianCalendarSystem.DAYS_OF_MONTH_ORDI[month - 1];
+            }
+        } else {
+            if (day > GregorianCalendarSystem.DAYS_OF_MONTH_LEAP[month - 1]) {
+                day = GregorianCalendarSystem.DAYS_OF_MONTH_LEAP[month - 1];
+            }
+        }
+
+        return calSystem.getChronon(year, month, day, hour, min, sec, ms, 0) + dayTimeDuration;
+    }
+
+    public static int addDuration(int pointChronon, long dayTimeDuration) {
+        int rtnChronon = (int) ((pointChronon + dayTimeDuration) % GregorianCalendarSystem.CHRONON_OF_DAY);
+        if (rtnChronon < 0) {
+            rtnChronon += GregorianCalendarSystem.CHRONON_OF_DAY;
+        }
+
+        return rtnChronon;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/GregorianCalendarSystem.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/GregorianCalendarSystem.java
new file mode 100644
index 0000000..f74af9b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/GregorianCalendarSystem.java
@@ -0,0 +1,717 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Joda API (http://joda-time.sourceforge.net/) is under the protection of:
+ * 
+ * Copyright 2001-2005 Stephen Colebourne
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+/**
+ * A simple implementation of the Gregorian calendar system.
+ * <p/>
+ */
+public class GregorianCalendarSystem implements ICalendarSystem {
+
+    public enum Fields {
+        YEAR,
+        MONTH,
+        DAY,
+        HOUR,
+        MINUTE,
+        SECOND,
+        MILLISECOND
+    };
+
+    //public static final int YEAR = 0, MONTH = 1, DAY = 2, HOUR = 3, MINUTE = 4, SECOND = 5, MILLISECOND = 6;
+
+    public static final int[] DAYS_OF_MONTH_ORDI = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+    public static final int[] DAYS_OF_MONTH_LEAP = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+    public static final int[] DAYS_SINCE_MONTH_BEGIN_ORDI = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
+
+    public static final int CHRONON_OF_SECOND = 1000;
+    public static final int CHRONON_OF_MINUTE = 60 * CHRONON_OF_SECOND;
+    public static final int CHRONON_OF_HOUR = 60 * CHRONON_OF_MINUTE;
+    public static final long CHRONON_OF_DAY = 24 * CHRONON_OF_HOUR;
+    public static final int MONTHS_IN_A_YEAR = 12;
+
+    /**
+     * Minimum feasible value of each field
+     */
+    public static final int[] FIELD_MINS = { Integer.MIN_VALUE, // year
+            1, // month
+            1, // day
+            0, // hour
+            0, // minute
+            0, // second
+            0 // millisecond
+    };
+
+    public static final int[] FIELD_MAXS = { Integer.MAX_VALUE, // year
+            12, // month
+            31, // day
+            23, // hour
+            59, // minute
+            59, // second
+            999 // millisecond
+    };
+
+    public static final int TIMEZONE_HOUR_MIN = -12, TIMEZONE_HOUR_MAX = 14, TIMEZONE_MIN_MIN = -60,
+            TIMEZONE_MIN_MAX = 60;
+
+    /**
+     * From Joda API: GregorianChronology.java
+     */
+    private static final long CHRONON_OF_YEAR = (long) (365.2425 * CHRONON_OF_DAY);
+
+    /**
+     * From Joda API: GregorianChronology.java
+     */
+    private static final int DAYS_0000_TO_1970 = 719527;
+
+    private static final GregorianCalendarSystem instance = new GregorianCalendarSystem();
+
+    private GregorianCalendarSystem() {
+    }
+
+    public static GregorianCalendarSystem getInstance() {
+        return instance;
+    }
+
+    /**
+     * Check whether the given date time value is a valid date time following the gregorian calendar system.
+     * 
+     * @param fields
+     * @return
+     */
+    public boolean validate(int year, int month, int day, int hour, int min, int sec, int millis) {
+        // Check whether each field is within the value domain
+        if (year < FIELD_MINS[0] || year > FIELD_MAXS[0]) {
+            return false;
+        }
+        if (month < FIELD_MINS[1] || month > FIELD_MAXS[1]) {
+            return false;
+        }
+        if (day < FIELD_MINS[2] || day > FIELD_MAXS[2]) {
+            return false;
+        }
+        if (hour < FIELD_MINS[3] || hour > FIELD_MAXS[3]) {
+            return false;
+        }
+        if (min < FIELD_MINS[4] || min > FIELD_MAXS[4]) {
+            return false;
+        }
+        if (sec < FIELD_MINS[5] || sec > FIELD_MAXS[5]) {
+            return false;
+        }
+        if (millis < FIELD_MINS[6] || millis > FIELD_MAXS[6]) {
+            return false;
+        }
+
+        // Check whether leap month.
+        if (month == 2) {
+            if (isLeapYear(year)) {
+                if (day > DAYS_OF_MONTH_LEAP[1]) {
+                    return false;
+                }
+            } else {
+                if (day > DAYS_OF_MONTH_ORDI[1]) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Check whether the given time zone value is a valid time zone following the gregorian calendar system.
+     * <p/>
+     * The valid timezone is within the range of:<br/>
+     * - Hours: UTC -12 (Y, or Yankee Time Zone) to UTC +14 (LINT, or Line Islands Time) <br/>
+     * - Minutes: currently the available minutes include 00, 30 and 45.
+     * <p/>
+     * Reference: http://www.timeanddate.com/library/abbreviations/timezones/
+     * <p/>
+     * 
+     * @param timezone
+     * @return
+     */
+    public boolean validateTimeZone(int timezone) {
+        short tzMin = (short) ((timezone % 4) * 15);
+
+        if (tzMin < -60 || tzMin >= 60) {
+            return false;
+        }
+
+        short tzHr = (short) (timezone / 4);
+
+        if (tzHr < -12 && tzHr > 14) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Validate the given chronon time and time zone.
+     * 
+     * @param year
+     * @param month
+     * @param day
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public boolean validate(int year, int month, int day, int hour, int min, int sec, int millis, int timezone) {
+        return validate(year, month, day, hour, min, sec, millis) && validateTimeZone(timezone);
+    }
+
+    /**
+     * Get the UTC chronon time of the given date time and time zone.
+     * 
+     * @param year
+     * @param month
+     * @param day
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public long getChronon(int year, int month, int day, int hour, int min, int sec, int millis, int timezone) {
+        // Added milliseconds for all fields but month and day
+        long chrononTime = chrononizeBeginningOfYear(year) + (hour - timezone / 4) * CHRONON_OF_HOUR
+                + (min - (timezone % 4) * 15) * CHRONON_OF_MINUTE + sec * CHRONON_OF_SECOND + millis;
+
+        // Added milliseconds for days of the month. 
+        chrononTime += (day - 1 + DAYS_SINCE_MONTH_BEGIN_ORDI[month - 1]) * CHRONON_OF_DAY;
+
+        // Adjust the leap year
+        if (month > 2 && isLeapYear(year)) {
+            chrononTime += CHRONON_OF_DAY;
+        }
+
+        return chrononTime;
+    }
+
+    /**
+     * Get the chronon time (number of milliseconds) of the given time and time zone.
+     * 
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public int getChronon(int hour, int min, int sec, int millis, int timezone) {
+        // Added milliseconds for all fields but month and day
+        int chrononTime = (hour - timezone / 4) * CHRONON_OF_HOUR + (min - (timezone % 4) * 15) * CHRONON_OF_MINUTE
+                + sec * CHRONON_OF_SECOND + millis;
+        return chrononTime;
+    }
+
+    public long adjustChrononByTimezone(long chronon, int timezone) {
+        return chronon + timezone / 4 * CHRONON_OF_HOUR + (timezone % 4) * 15 * CHRONON_OF_MINUTE;
+    }
+
+    public static int getChrononInDays(long chronon) {
+        if (chronon >= 0) {
+            return (int) (chronon / CHRONON_OF_DAY);
+        } else {
+            if (chronon % CHRONON_OF_DAY != 0) {
+                return (int) (chronon / CHRONON_OF_DAY - 1);
+            } else {
+                return (int) (chronon / CHRONON_OF_DAY);
+            }
+        }
+    }
+
+    /**
+     * Get the extended string representation of the given UTC chronon time under the given time zone. Only fields
+     * before
+     * the given field index will be returned.
+     * <p/>
+     * The extended string representation is like:<br/>
+     * [-]YYYY-MM-DDThh:mm:ss.xxx[Z|[+|-]hh:mm]
+     * 
+     * @param chrononTime
+     * @param timezone
+     * @param sbder
+     * @param untilField
+     */
+    public void getExtendStringRepWithTimezoneUntilField(long chrononTime, int timezone, StringBuilder sbder,
+            Fields startField, Fields untilField) {
+
+        int year = getYear(chrononTime);
+        int month = getMonthOfYear(chrononTime, year);
+
+        switch (startField) {
+            case YEAR:
+            default:
+                sbder.append(String.format(year < 0 ? "%05d" : "%04d", year));
+                if (untilField == Fields.YEAR) {
+                    return;
+                }
+            case MONTH:
+                if (startField != Fields.MONTH) {
+                    sbder.append("-");
+                }
+                sbder.append(String.format("%02d", month));
+                if (untilField == Fields.MONTH) {
+                    return;
+                }
+            case DAY:
+                if (startField != Fields.DAY) {
+                    sbder.append("-");
+                }
+                sbder.append(String.format("%02d", getDayOfMonthYear(chrononTime, year, month)));
+                if (untilField == Fields.DAY) {
+                    break;
+                }
+            case HOUR:
+                if (startField != Fields.HOUR) {
+                    sbder.append("T");
+                }
+                sbder.append(String.format("%02d", getHourOfDay(chrononTime)));
+                if (untilField == Fields.HOUR) {
+                    break;
+                }
+            case MINUTE:
+                if (startField != Fields.MINUTE) {
+                    sbder.append(":");
+                }
+                sbder.append(String.format("%02d", getMinOfHour(chrononTime)));
+                if (untilField == Fields.MINUTE) {
+                    break;
+                }
+            case SECOND:
+                if (startField != Fields.SECOND) {
+                    sbder.append(":");
+                }
+                sbder.append(String.format("%02d", getSecOfMin(chrononTime)));
+                // add millisecond as the precision fields of a second
+                sbder.append(".").append(String.format("%03d", getMillisOfSec(chrononTime)));
+                break;
+        }
+
+        if (timezone == 0) {
+            sbder.append("Z");
+        } else {
+            short tzMin = (short) ((timezone % 4) * 15);
+            if (tzMin < 0) {
+                tzMin = (short) (-1 * tzMin);
+            }
+            short tzHr = (short) (timezone / 4);
+            sbder.append((tzHr >= 0 ? "+" : "-")).append(String.format("%02d", (tzHr < 0 ? -tzHr : tzHr))).append(":")
+                    .append(String.format("%02d", tzMin));
+        }
+    }
+
+    /**
+     * Get the basic string representation of a chronon time with the given time zone.
+     * 
+     * @param chrononTime
+     * @param timezone
+     * @param sbder
+     */
+    public void getBasicStringRepWithTimezoneUntilField(long chrononTime, int timezone, StringBuilder sbder,
+            Fields startField, Fields untilField) {
+        int year = getYear(chrononTime);
+        int month = getMonthOfYear(chrononTime, year);
+
+        switch (startField) {
+            case YEAR:
+            default:
+                sbder.append(String.format(year < 0 ? "%05d" : "%04d", year));
+                if (untilField == Fields.YEAR) {
+                    return;
+                }
+            case MONTH:
+                sbder.append(String.format("%02d", month));
+                if (untilField == Fields.MONTH) {
+                    return;
+                }
+            case DAY:
+                sbder.append(String.format("%02d", getDayOfMonthYear(chrononTime, year, month)));
+                if (untilField == Fields.DAY) {
+                    break;
+                }
+            case HOUR:
+                sbder.append(String.format("%02d", getHourOfDay(chrononTime)));
+                if (untilField == Fields.HOUR) {
+                    break;
+                }
+            case MINUTE:
+                sbder.append(String.format("%02d", getMinOfHour(chrononTime)));
+                if (untilField == Fields.MINUTE) {
+                    break;
+                }
+            case SECOND:
+                sbder.append(String.format("%02d", getSecOfMin(chrononTime)));
+                // add millisecond as the precision fields of a second
+                sbder.append(String.format("%03d", getMillisOfSec(chrononTime)));
+                break;
+        }
+
+        if (timezone == 0) {
+            sbder.append("Z");
+        } else {
+            short tzMin = (short) ((timezone % 4) * 15);
+            if (tzMin < 0) {
+                tzMin = (short) (-1 * tzMin);
+            }
+            short tzHr = (short) (timezone / 4);
+            sbder.append((tzHr >= 0 ? "+" : "-")).append(String.format("%02d", (tzHr < 0 ? -tzHr : tzHr)))
+                    .append(String.format("%02d", tzMin));
+        }
+    }
+
+    /**
+     * Get the extended string representation of the given months and milliseconds (duration) time. *
+     * <p/>
+     * The extended and simple string representation is like:<br/>
+     * [-]PnYnMnDTnHnMnS
+     * 
+     * @param milliseconds
+     * @param months
+     * @param sbder
+     */
+
+    public void getDurationExtendStringRepWithTimezoneUntilField(long milliseconds, int months, StringBuilder sbder) {
+
+        boolean positive = true;
+
+        // set the negative flag. "||" is necessary in case that months field is not there (so it is 0)
+        if (months < 0 || milliseconds < 0) {
+            months *= -1;
+            milliseconds *= -1;
+            positive = false;
+        }
+
+        int month = getDurationMonth(months);
+        int year = getDurationYear(months);
+        int millisecond = getDurationMillisecond(milliseconds);
+        int second = getDurationSecond(milliseconds);
+        int minute = getDurationMinute(milliseconds);
+        int hour = getDurationHour(milliseconds);
+        int day = getDurationDay(milliseconds);
+
+        if (!positive) {
+            sbder.append("-");
+        }
+        sbder.append("P");
+        sbder.append((year != 0) ? year + "Y" : "");
+        sbder.append((month != 0) ? month + "M" : "");
+        sbder.append((day != 0) ? day + "D" : "");
+        sbder.append((hour != 0 || minute != 0 || second != 0 || millisecond != 0) ? "T" : "");
+        sbder.append((hour != 0) ? hour + "H" : "");
+        sbder.append((minute != 0) ? minute + "M" : "");
+        sbder.append((second != 0 || millisecond != 0) ? second : "");
+        if (millisecond > 0) {
+            sbder.append("." + millisecond);
+        }
+        sbder.append((second != 0 || millisecond != 0) ? "S" : "");
+    }
+
+    /**
+     * Check whether a given year is a leap year.
+     * 
+     * @param year
+     * @return
+     */
+    public boolean isLeapYear(int year) {
+        return ((year & 3) == 0) && ((year % 100) != 0 || (year % 400) == 0);
+    }
+
+    /**
+     * From Joda library GregorianChronology class: The basic calculation is
+     * (y / 4) - (y / 100) + (y / 400). <br/>
+     * Use y >> 2 ( (y + 3) >> 2 for negative y value) to replace y / 4 reveals eliminates two divisions.
+     * 
+     * @param year
+     * @return
+     */
+    private long chrononizeBeginningOfYear(int year) {
+        int leapYears = year / 100;
+        if (year < 0) {
+            // From Joda library GregorianChronology class
+            // The basic calculation is (y / 4) - (y / 100) + (y / 400)
+            // Use (y + 3) >> 2 to replace y / 4 reveals eliminates two divisions.
+            leapYears = ((year + 3) >> 2) - leapYears + ((leapYears + 3) >> 2) - 1;
+        } else {
+            leapYears = (year >> 2) - leapYears + (leapYears >> 2);
+            if (isLeapYear(year)) {
+                leapYears--;
+            }
+        }
+        return (year * 365L + (leapYears - DAYS_0000_TO_1970)) * CHRONON_OF_DAY;
+    }
+
+    /**
+     * Get the year for the given chronon time.
+     * <p/>
+     * This code is directly from the Joda library BadicChronology.java.<br/>
+     * The original authers are Stephen Colebourne, Brain S O'Neill and Guy Allard, and modified by JArod Wen on May
+     * 7th, 2012.
+     * 
+     * @param chrononTime
+     * @return
+     */
+    public int getYear(long chrononTime) {
+        // Get an initial estimate of the year, and the millis value that
+        // represents the start of that year. Then verify estimate and fix if
+        // necessary.
+
+        // Initial estimate uses values divided by two to avoid overflow.
+        long unitMillis = CHRONON_OF_YEAR / 2;
+        long i2 = (chrononTime >> 1) + (1970L * CHRONON_OF_YEAR) / 2;
+        if (i2 < 0) {
+            i2 = i2 - unitMillis + 1;
+        }
+        int year = (int) (i2 / unitMillis);
+
+        long yearStart = chrononizeBeginningOfYear(year);
+        long diff = chrononTime - yearStart;
+
+        if (diff < 0) {
+            year--;
+        } else if (diff >= CHRONON_OF_DAY * 365L) {
+            // One year may need to be added to fix estimate.
+            long oneYear;
+            if (isLeapYear(year)) {
+                oneYear = CHRONON_OF_DAY * 366L;
+            } else {
+                oneYear = CHRONON_OF_DAY * 365L;
+            }
+
+            yearStart += oneYear;
+
+            if (yearStart <= chrononTime) {
+                // Didn't go too far, so actually add one year.
+                year++;
+            }
+        }
+
+        return year;
+    }
+
+    /**
+     * Get the month of the year for the given chronon time and the year.
+     * <p/>
+     * This code is directly from the Joda library BasicGJChronology.java.<br/>
+     * The original authers are Stephen Colebourne, Brain S O'Neill and Guy Allard, and modified by JArod Wen on May
+     * 7th, 2012 and commented by Theodoros Ioannou on July 2012.
+     * <p/>
+     * 
+     * @param millis
+     * @param year
+     * @return
+     */
+    public int getMonthOfYear(long millis, int year) {
+        // Perform a binary search to get the month. To make it go even faster,
+        // compare using ints instead of longs. The number of milliseconds per
+        // year exceeds the limit of a 32-bit int's capacity, so divide by
+        // 1024. No precision is lost (except time of day) since the number of
+        // milliseconds per day contains 1024 as a factor. After the division,
+        // the instant isn't measured in milliseconds, but in units of
+        // (128/125)seconds.
+
+        int i = (int) ((millis - chrononizeBeginningOfYear(year)) >> 10);
+
+        // There are 86400000 milliseconds per day, but divided by 1024 is
+        // 84375. There are 84375 (128/125)seconds per day.
+
+        int leap = 0;
+
+        if (isLeapYear(year) == true) {
+            leap = 1; //Adding one day for the leap years
+        }
+
+        if (i < (181 + leap) * 84375) { /*Days before the end of June*/
+            if (i < (90 + leap) * 84375) { /*Days before the end of March*/
+                if (i < 31 * 84375) { /*Days before the end of January*/
+                    return 1;
+                } else if (i < (59 + leap) * 84375) { /*Days before the end of February*/
+                    return 2;
+                } else {
+                    return 3;
+                }
+            } else if (i < (120 + leap) * 84375) { /*Days before the end of April*/
+                return 4;
+            } else if (i < (151 + leap) * 84375) { /*Days before the end of May*/
+                return 5;
+            } else {
+                return 6;
+            }
+        } else if (i < (273 + leap) * 84375) { /*Days before the end of September*/
+            if (i < (212 + leap) * 84375) { /*Days before the end of July*/
+                return 7;
+            } else if (i < (243 + leap) * 84375) { /*Days before the end of August*/
+                return 8;
+            } else {
+                return 9;
+            }
+        } else if (i < (304 + leap) * 84375) { /*Days before the end of October*/
+            return 10;
+        } else if (i < (334 + leap) * 84375) { /*Days before the end of November*/
+            return 11;
+        } else {
+            return 12;
+        }
+    }
+
+    /**
+     * Get the day of the given month and year for the input chronon time.
+     * <p/>
+     * This function is directly from Joda Library BasicChronology.java.<br/>
+     * The original authers are Stephen Colebourne, Brain S O'Neill and Guy Allard, and modified by JArod Wen on May
+     * 7th, 2012.
+     * <p/>
+     * 
+     * @param millis
+     * @param year
+     * @param month
+     * @return
+     */
+    public int getDayOfMonthYear(long millis, int year, int month) {
+        long dateMillis = chrononizeBeginningOfYear(year);
+        dateMillis += DAYS_SINCE_MONTH_BEGIN_ORDI[month - 1] * CHRONON_OF_DAY;
+        if (isLeapYear(year) && month > 2) {
+            dateMillis += CHRONON_OF_DAY;
+        }
+        return (int) ((millis - dateMillis) / CHRONON_OF_DAY) + 1;
+    }
+
+    /**
+     * Get the hour of the day for the given chronon time.
+     * 
+     * @param millis
+     * @return
+     */
+    public int getHourOfDay(long millis) {
+        int hour = (int) ((millis % CHRONON_OF_DAY) / CHRONON_OF_HOUR);
+
+        if (millis < 0) {
+            if (millis % CHRONON_OF_HOUR == 0) {
+                if (hour < 0) {
+                    hour += 24;
+                }
+            } else {
+                hour += 23;
+            }
+        }
+
+        return hour;
+    }
+
+    /**
+     * Get the minute of the hour for the given chronon time.
+     * 
+     * @param millis
+     * @return
+     */
+    public int getMinOfHour(long millis) {
+        int min = (int) ((millis % CHRONON_OF_HOUR) / CHRONON_OF_MINUTE);
+        if (millis < 0) {
+            if (millis % CHRONON_OF_MINUTE == 0) {
+                if (min < 0) {
+                    min += 60;
+                }
+            } else {
+                min += 59;
+            }
+        }
+        return min;
+    }
+
+    /**
+     * Get the second of the minute for the given chronon time.
+     * 
+     * @param millis
+     * @return
+     */
+    public int getSecOfMin(long millis) {
+        int sec = (int) ((millis % CHRONON_OF_MINUTE) / CHRONON_OF_SECOND);
+        if (millis < 0) {
+            if (millis % CHRONON_OF_SECOND == 0) {
+                if (sec < 0) {
+                    sec += 60;
+                }
+            } else {
+                sec += 59;
+            }
+        }
+        return sec;
+    }
+
+    /**
+     * Get the millisecond of the second for the given chronon time.
+     * 
+     * @param millis
+     * @return
+     */
+    public int getMillisOfSec(long millis) {
+        int ms = (int) (millis % CHRONON_OF_SECOND);
+        if (millis < 0 && ms < 0) {
+            ms += 1000;
+        }
+        return ms;
+    }
+
+    public int getDurationMonth(int months) {
+        return (months % 12);
+    }
+
+    public int getDurationYear(int months) {
+        return (months / 12);
+    }
+
+    public int getDurationMillisecond(long milliseconds) {
+        return (int) (milliseconds % 1000);
+    }
+
+    public int getDurationSecond(long milliseconds) {
+        return (int) ((milliseconds % 60000) / 1000);
+    }
+
+    public int getDurationMinute(long milliseconds) {
+        return (int) ((milliseconds % 3600000) / 60000);
+    }
+
+    public int getDurationHour(long milliseconds) {
+        return (int) ((milliseconds % (86400000)) / 3600000);
+    }
+
+    public int getDurationDay(long milliseconds) {
+        return (int) (milliseconds / (86400000));
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ICalendarSystem.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ICalendarSystem.java
new file mode 100644
index 0000000..414a8fe
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ICalendarSystem.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.base.temporal;
+
+public interface ICalendarSystem {
+
+    /**
+     * check whether the given time stamp is valid in the calendar system.
+     * 
+     * @param year
+     * @param month
+     * @param day
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public boolean validate(int year, int month, int day, int hour, int min, int sec, int millis, int timezone);
+
+    /**
+     * get the chronon time for the given time stamp in the calendar system.
+     * 
+     * @param year
+     * @param month
+     * @param day
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public long getChronon(int year, int month, int day, int hour, int min, int sec, int millis, int timezone);
+
+    /**
+     * get the chronon time for the given time in the calendar system
+     * 
+     * @param hour
+     * @param min
+     * @param sec
+     * @param millis
+     * @param timezone
+     * @return
+     */
+    public int getChronon(int hour, int min, int sec, int millis, int timezone);
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AbstractFunctionDescriptor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AbstractFunctionDescriptor.java
new file mode 100644
index 0000000..919d8c9
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AbstractFunctionDescriptor.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.functions;
+
+import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyRunningAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
+
+public abstract class AbstractFunctionDescriptor implements IFunctionDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public abstract FunctionIdentifier getIdentifier();
+
+    @Override
+    public abstract FunctionDescriptorTag getFunctionDescriptorTag();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        throw new NotImplementedException("Not Implemented");
+    }
+
+    @Override
+    public ICopyRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        throw new NotImplementedException("Not Implemented");
+    }
+
+    @Override
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        throw new NotImplementedException("Not Implemented");
+    }
+
+    @Override
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        throw new NotImplementedException("Not Implemented");
+    }
+
+    @Override
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        throw new NotImplementedException("Not Implemented");
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
index c898f86..24649d9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
@@ -12,6 +12,8 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ABooleanTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ACircleTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.ADateTimeTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.ADateTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ADoubleTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.AFloatTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.AInt32TypeComputer;
@@ -21,7 +23,11 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.APolygonTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ARectangleTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.AStringTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.ATimeTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.BinaryBooleanOrNullFunctionTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.BinaryStringBoolOrNullTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.BinaryStringStringOrNullTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.CastRecordResultTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ClosedRecordConstructorResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.FieldAccessByIndexResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.InjectFailureTypeComputer;
@@ -30,10 +36,14 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedGetItemResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedLocalAvgTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedNumericAddSubMulDivTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedNumericRoundHalfToEven2TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedNumericUnaryFunctionTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedSumTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedSwitchCaseComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.NonTaggedUnaryMinusTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.NotNullTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OpenRecordConstructorResultType;
+import edu.uci.ics.asterix.om.typecomputer.impl.OptionalABooleanTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalACircleTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalADateTimeTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalADateTypeComputer;
@@ -44,6 +54,7 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAInt32TypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAInt64TypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAInt8TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAIntervalTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalALineTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAPoint3DTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalAPointTypeComputer;
@@ -53,10 +64,18 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalATimeTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListConstructorResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAInt32TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAPointTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAStringTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAnyTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.QuadStringStringOrNullTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ScalarVersionOfAggregateResultType;
+import edu.uci.ics.asterix.om.typecomputer.impl.Substring2TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.SubstringTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.TripleStringBoolOrNullTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.TripleStringStringOrNullTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.UnaryBooleanOrNullFunctionTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.UnaryStringInt32OrNullTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.UnaryStringOrNullTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.UnorderedListConstructorResultType;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
@@ -65,6 +84,7 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
@@ -73,7 +93,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AsterixBuiltinFunctions {
 
@@ -81,8 +100,7 @@
         SI
     }
 
-    private final static Map<AsterixFunction, IFunctionInfo> asterixFunctionToInfo = new HashMap<AsterixFunction, IFunctionInfo>();
-    private final static Map<FunctionIdentifier, IFunctionInfo> asterixFunctionIdToInfo = new HashMap<FunctionIdentifier, IFunctionInfo>();
+    private static final FunctionInfoRepository finfoRepo = new FunctionInfoRepository();
 
     // it is supposed to be an identity mapping
     private final static Map<IFunctionInfo, IFunctionInfo> builtinFunctionsSet = new HashMap<IFunctionInfo, IFunctionInfo>();
@@ -97,243 +115,395 @@
     private final static Map<IFunctionInfo, IFunctionInfo> scalarToAggregateFunctionMap = new HashMap<IFunctionInfo, IFunctionInfo>();
     private static final Map<IFunctionInfo, SpatialFilterKind> spatialFilterFunctions = new HashMap<IFunctionInfo, SpatialFilterKind>();
 
-    public final static FunctionIdentifier TYPE_OF = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "type-of", 1,
-            true);
+    public final static FunctionIdentifier TYPE_OF = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "type-of", 1);
     public final static FunctionIdentifier GET_HANDLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "get-handle", 2, true);
+            "get-handle", 2);
     public final static FunctionIdentifier GET_DATA = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-data",
-            2, true);
+            2);
     public final static FunctionIdentifier EMBED_TYPE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "embed-type", 1, true);
+            "embed-type", 1);
 
     public final static FunctionIdentifier GET_ITEM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-item",
-            2, true);
+            2);
     public final static FunctionIdentifier ANY_COLLECTION_MEMBER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "any-collection-member", 1, true);
-    public final static FunctionIdentifier LISTIFY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "listify", 1,
-            true);
+            "any-collection-member", 1);
+    public final static FunctionIdentifier LISTIFY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "listify", 1);
     // public final static FunctionIdentifier BAGIFY = new
     // FunctionIdentifier(ASTERIX_NS, "bagify", 1, true);
-    public final static FunctionIdentifier LEN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "len", 1, true);
+    public final static FunctionIdentifier LEN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "len", 1);
 
     public final static FunctionIdentifier CONCAT_NON_NULL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "concat-non-null", FunctionIdentifier.VARARGS, true);
+            "concat-non-null", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier EMPTY_STREAM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "empty-stream", 0, true);
+            "empty-stream", 0);
     public final static FunctionIdentifier NON_EMPTY_STREAM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "non-empty-stream", 0, true);
+            "non-empty-stream", 0);
     public final static FunctionIdentifier ORDERED_LIST_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "ordered-list-constructor", FunctionIdentifier.VARARGS, true);
+            FunctionConstants.ASTERIX_NS, "ordered-list-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier UNORDERED_LIST_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "unordered-list-constructor", FunctionIdentifier.VARARGS, true);
+            FunctionConstants.ASTERIX_NS, "unordered-list-constructor", FunctionIdentifier.VARARGS);
 
     // records
     public final static FunctionIdentifier CLOSED_RECORD_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "closed-record-constructor", FunctionIdentifier.VARARGS, true);
+            FunctionConstants.ASTERIX_NS, "closed-record-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier OPEN_RECORD_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "open-record-constructor", FunctionIdentifier.VARARGS, true);
+            FunctionConstants.ASTERIX_NS, "open-record-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier RECORD_TYPE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "record-type-constructor", FunctionIdentifier.VARARGS, true);
+            FunctionConstants.ASTERIX_NS, "record-type-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier FIELD_ACCESS_BY_INDEX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-index", 2, true);
+            "field-access-by-index", 2);
     public final static FunctionIdentifier FIELD_ACCESS_BY_NAME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-name", 2, true);
+            "field-access-by-name", 2);
 
     public final static FunctionIdentifier NUMERIC_UNARY_MINUS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-unary-minus", 1, true);
+            "numeric-unary-minus", 1);
 
     public final static FunctionIdentifier NUMERIC_SUBTRACT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-subtract", 2, true);
+            "numeric-subtract", 2);
     public final static FunctionIdentifier NUMERIC_MULTIPLY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-multiply", 2, true);
+            "numeric-multiply", 2);
     public final static FunctionIdentifier NUMERIC_DIVIDE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-divide", 2, true);
+            "numeric-divide", 2);
     public final static FunctionIdentifier NUMERIC_MOD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-mod", 2, true);
+            "numeric-mod", 2);
     public final static FunctionIdentifier NUMERIC_IDIV = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-idiv", 2, true);
-    public final static FunctionIdentifier CARET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "caret", 2,
-            true);
+            "numeric-idiv", 2);
+    public final static FunctionIdentifier CARET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "caret", 2);
 
-    public final static FunctionIdentifier DATASET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "dataset", 1,
-            true);
+    public final static FunctionIdentifier NUMERIC_ABS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-abs", 1);
+    public final static FunctionIdentifier NUMERIC_CEILING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-ceiling", 1);
+    public final static FunctionIdentifier NUMERIC_FLOOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-floor", 1);
+    public final static FunctionIdentifier NUMERIC_ROUND = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-round", 1);
+    public final static FunctionIdentifier NUMERIC_ROUND_HALF_TO_EVEN = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "numeric-round-half-to-even", 1);
+    public final static FunctionIdentifier NUMERIC_ROUND_HALF_TO_EVEN2 = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "numeric-round-half-to-even", 2);
+    // String funcitons
+    public final static FunctionIdentifier STRING_EQUAL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-equal", 2);
+    public final static FunctionIdentifier STRING_START_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "start-with", 2);
+    public final static FunctionIdentifier STRING_END_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "end-with", 2);
+    public final static FunctionIdentifier STRING_MATCHES = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "matches", 2);
+    public final static FunctionIdentifier STRING_MATCHES_WITH_FLAG = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "matches", 3);
+    public final static FunctionIdentifier STRING_LOWERCASE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "lowercase", 1);
+    public final static FunctionIdentifier STRING_REPLACE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "replace", 3);
+    public final static FunctionIdentifier STRING_REPLACE_WITH_FLAG = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "replace", 4);
+    public final static FunctionIdentifier STRING_LENGTH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-length", 1);
+    public final static FunctionIdentifier SUBSTRING2 = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "substring", 2);
+    public final static FunctionIdentifier SUBSTRING_BEFORE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "substring-before", 2);
+    public final static FunctionIdentifier SUBSTRING_AFTER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "substring-after", 2);
+    public final static FunctionIdentifier STRING_TO_CODEPOINT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-to-codepoint", 1);
+    public final static FunctionIdentifier CODEPOINT_TO_STRING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "codepoint-to-string", 1);
+    public final static FunctionIdentifier STRING_CONCAT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-concat", 1);
+    public final static FunctionIdentifier STRING_JOIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-join", 2);
+
+    public final static FunctionIdentifier DATASET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "dataset", 1);
     public final static FunctionIdentifier FEED_INGEST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "feed-ingest", 1, true);
+            "feed-ingest", 1);
 
     public final static FunctionIdentifier INDEX_SEARCH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "index-search", FunctionIdentifier.VARARGS, true);
+            "index-search", FunctionIdentifier.VARARGS);
 
     public final static FunctionIdentifier MAKE_FIELD_INDEX_HANDLE = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "make-field-index-handle", 2, true);
+            FunctionConstants.ASTERIX_NS, "make-field-index-handle", 2);
     public final static FunctionIdentifier MAKE_FIELD_NAME_HANDLE = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "make-field-name-handle", 1, true);
+            FunctionConstants.ASTERIX_NS, "make-field-name-handle", 1);
 
     public final static FunctionIdentifier SUBSTRING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "substring", 3, true);
-    public final static FunctionIdentifier LIKE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2, true);
+            "substring", 3);
+    public final static FunctionIdentifier LIKE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2);
     public final static FunctionIdentifier CONTAINS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "contains",
-            2, true);
-    private final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "starts-with", 2, true);
-    private final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "ends-with", 2, true);
+            2);
+    public final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "starts-with", 2);
+    public final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "ends-with", 2);
 
-    public final static FunctionIdentifier AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1,
-            true);
-    public final static FunctionIdentifier COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-count", 1,
-            true);
-    public final static FunctionIdentifier SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-sum", 1,
-            true);
-    public final static FunctionIdentifier MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-max", 1,
-            true);
-    public final static FunctionIdentifier MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-min", 1,
-            true);
+    public final static FunctionIdentifier AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1);
+    public final static FunctionIdentifier COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-count", 1);
+    public final static FunctionIdentifier SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-sum", 1);
+    public final static FunctionIdentifier LOCAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "agg-local-sum", 1);
+    public final static FunctionIdentifier MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-max", 1);
+    public final static FunctionIdentifier LOCAL_MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "agg-local-max", 1);
+    public final static FunctionIdentifier MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-min", 1);
+    public final static FunctionIdentifier LOCAL_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "agg-local-min", 1);
     public final static FunctionIdentifier GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "agg-global-avg", 1, true);
+            "agg-global-avg", 1);
     public final static FunctionIdentifier LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "agg-local-avg", 1, true);
+            "agg-local-avg", 1);
 
-    public final static FunctionIdentifier SCALAR_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg", 1,
-            true);
+    public final static FunctionIdentifier SCALAR_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg", 1);
     public final static FunctionIdentifier SCALAR_COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "count",
-            1, true);
-    public final static FunctionIdentifier SCALAR_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum", 1,
-            true);
-    public final static FunctionIdentifier SCALAR_MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "max", 1,
-            true);
-    public final static FunctionIdentifier SCALAR_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "min", 1,
-            true);
+            1);
+    public final static FunctionIdentifier SCALAR_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum", 1);
+    public final static FunctionIdentifier SCALAR_MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "max", 1);
+    public final static FunctionIdentifier SCALAR_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "min", 1);
     public final static FunctionIdentifier SCALAR_GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "global-avg", 1, true);
+            "global-avg", 1);
     public final static FunctionIdentifier SCALAR_LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "local-avg", 1, true);
+            "local-avg", 1);
 
     // serializable aggregate functions
     public final static FunctionIdentifier SERIAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "avg-serial", 1, true);
+            "avg-serial", 1);
     public final static FunctionIdentifier SERIAL_COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "count-serial", 1, true);
+            "count-serial", 1);
     public final static FunctionIdentifier SERIAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "sum-serial", 1, true);
+            "sum-serial", 1);
+    public final static FunctionIdentifier SERIAL_LOCAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "local-sum-serial", 1);
     public final static FunctionIdentifier SERIAL_GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "global-avg-serial", 1, true);
+            "global-avg-serial", 1);
     public final static FunctionIdentifier SERIAL_LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "local-avg-serial", 1, true);
-
-    public final static FunctionIdentifier YEAR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "year", 1, true);
+            "local-avg-serial", 1);
 
     public final static FunctionIdentifier SCAN_COLLECTION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "scan-collection", 1, true);
+            "scan-collection", 1);
     public final static FunctionIdentifier SUBSET_COLLECTION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "subset-collection", 3, true);
+            "subset-collection", 3);
 
-    public final static FunctionIdentifier RANGE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "range", 2,
-            true);
+    public final static FunctionIdentifier RANGE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "range", 2);
 
     // fuzzy functions:
     public final static FunctionIdentifier FUZZY_EQ = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "fuzzy-eq",
-            2, true);
+            2);
 
     public final static FunctionIdentifier PREFIX_LEN_JACCARD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "prefix-len-jaccard", 2, true);
+            "prefix-len-jaccard", 2);
 
     public final static FunctionIdentifier SIMILARITY_JACCARD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard", 2, true);
+            "similarity-jaccard", 2);
     public final static FunctionIdentifier SIMILARITY_JACCARD_CHECK = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "similarity-jaccard-check", 3, true);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-check", 3);
+    public final static FunctionIdentifier SIMILARITY_JACCARD_SORTED = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-sorted", 2);
+    public final static FunctionIdentifier SIMILARITY_JACCARD_SORTED_CHECK = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-sorted-check", 3);
     public final static FunctionIdentifier SIMILARITY_JACCARD_PREFIX = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix", 6, true);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix", 6);
     public final static FunctionIdentifier SIMILARITY_JACCARD_PREFIX_CHECK = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix-check", 6, true);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix-check", 6);
 
     public final static FunctionIdentifier EDIT_DISTANCE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance", 2, true);
+            "edit-distance", 2);
     public final static FunctionIdentifier EDIT_DISTANCE_CHECK = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance-check", 3, true);
+            "edit-distance-check", 3);
+    public final static FunctionIdentifier EDIT_DISTANCE_LIST_IS_FILTERABLE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "edit-distance-list-is-filterable", 2);
+    public final static FunctionIdentifier EDIT_DISTANCE_STRING_IS_FILTERABLE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "edit-distance-string-is-filterable", 4);
 
     // tokenizers:
     public final static FunctionIdentifier WORD_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "word-tokens", 1, true);
+            "word-tokens", 1);
     public final static FunctionIdentifier HASHED_WORD_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-word-tokens", 1, true);
+            "hashed-word-tokens", 1);
     public final static FunctionIdentifier COUNTHASHED_WORD_TOKENS = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "counthashed-word-tokens", 1, true);
+            FunctionConstants.ASTERIX_NS, "counthashed-word-tokens", 1);
     public final static FunctionIdentifier GRAM_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "gram-tokens", 3, true);
+            "gram-tokens", 3);
     public final static FunctionIdentifier HASHED_GRAM_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-gram-tokens", 3, true);
+            "hashed-gram-tokens", 3);
     public final static FunctionIdentifier COUNTHASHED_GRAM_TOKENS = new FunctionIdentifier(
-            FunctionConstants.ASTERIX_NS, "counthashed-gram-tokens", 3, true);
+            FunctionConstants.ASTERIX_NS, "counthashed-gram-tokens", 3);
 
-    public final static FunctionIdentifier TID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "tid", 0, true);
+    public final static FunctionIdentifier TID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "tid", 0);
 
     // constructors:
     public final static FunctionIdentifier BOOLEAN_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "boolean", 1, false);
+            "boolean", 1);
     public final static FunctionIdentifier NULL_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "null", 1, false);
+            "null", 1);
     public final static FunctionIdentifier STRING_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "string", 1, false);
+            "string", 1);
     public final static FunctionIdentifier INT8_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "int8", 1, false);
+            "int8", 1);
     public final static FunctionIdentifier INT16_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "int16", 1, false);
+            "int16", 1);
     public final static FunctionIdentifier INT32_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "int32", 1, false);
+            "int32", 1);
     public final static FunctionIdentifier INT64_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "int64", 1, false);
+            "int64", 1);
     public final static FunctionIdentifier FLOAT_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "float", 1, false);
+            "float", 1);
     public final static FunctionIdentifier DOUBLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "double", 1, false);
+            "double", 1);
     public final static FunctionIdentifier POINT_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "point", 1, false);
+            "point", 1);
     public final static FunctionIdentifier POINT3D_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "point3d", 1, false);
+            "point3d", 1);
     public final static FunctionIdentifier LINE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "line", 1, false);
+            "line", 1);
     public final static FunctionIdentifier CIRCLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "circle", 1, false);
+            "circle", 1);
     public final static FunctionIdentifier RECTANGLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "rectangle", 1, false);
+            "rectangle", 1);
     public final static FunctionIdentifier POLYGON_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "polygon", 1, false);
+            "polygon", 1);
     public final static FunctionIdentifier TIME_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "time", 1, false);
+            "time", 1);
     public final static FunctionIdentifier DATE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "date", 1, false);
+            "date", 1);
     public final static FunctionIdentifier DATETIME_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "datetime", 1, false);
+            "datetime", 1);
     public final static FunctionIdentifier DURATION_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "duration", 1, false);
+            "duration", 1);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_DATE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-from-date", 2);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_TIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-from-time", 2);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_DATETIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-from-datetime", 2);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_DATE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-start-from-date", 2);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_TIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-start-from-time", 2);
+    public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_DATETIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-start-from-datetime", 2);
+    public final static FunctionIdentifier INTERVAL_BEFORE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-before", 2);
+    public final static FunctionIdentifier INTERVAL_AFTER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-after", 2);
+    public final static FunctionIdentifier INTERVAL_MEETS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-meets", 2);
+    public final static FunctionIdentifier INTERVAL_MET_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-met-by", 2);
+    public final static FunctionIdentifier INTERVAL_OVERLAPS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-overlaps", 2);
+    public final static FunctionIdentifier INTERVAL_OVERLAPPED_BY = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "interval-overlapped-by", 2);
+    public final static FunctionIdentifier OVERLAP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "overlap", 2);
+    public final static FunctionIdentifier INTERVAL_STARTS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-starts", 2);
+    public final static FunctionIdentifier INTERVAL_STARTED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-started-by", 2);
+    public final static FunctionIdentifier INTERVAL_COVERS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-covers", 2);
+    public final static FunctionIdentifier INTERVAL_COVERED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-covered-by", 2);
+    public final static FunctionIdentifier INTERVAL_ENDS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-ends", 2);
+    public final static FunctionIdentifier INTERVAL_ENDED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-ended-by", 2);
+    public final static FunctionIdentifier CURRENT_TIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-time", 0);
+    public final static FunctionIdentifier CURRENT_DATE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-date", 0);
+    public final static FunctionIdentifier CURRENT_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-datetime", 0);
 
     // spatial
     public final static FunctionIdentifier CREATE_POINT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-point", 2, true);
+            "create-point", 2);
     public final static FunctionIdentifier CREATE_LINE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-line", 2, true);
+            "create-line", 2);
     public final static FunctionIdentifier CREATE_POLYGON = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-polygon", FunctionIdentifier.VARARGS, true);
+            "create-polygon", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier CREATE_CIRCLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-circle", 2, true);
+            "create-circle", 2);
     public final static FunctionIdentifier CREATE_RECTANGLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-rectangle", 2, true);
+            "create-rectangle", 2);
     public final static FunctionIdentifier SPATIAL_INTERSECT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-intersect", 2, true);
+            "spatial-intersect", 2);
     public final static FunctionIdentifier SPATIAL_AREA = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-area", 1, true);
+            "spatial-area", 1);
     public final static FunctionIdentifier SPATIAL_DISTANCE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-distance", 2, true);
+            "spatial-distance", 2);
     public final static FunctionIdentifier CREATE_MBR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-mbr", 3, true);
+            "create-mbr", 3);
     public final static FunctionIdentifier SPATIAL_CELL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-cell", 4, true);
+            "spatial-cell", 4);
     public final static FunctionIdentifier SWITCH_CASE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "switch-case", FunctionIdentifier.VARARGS, true);
-    public final static FunctionIdentifier REG_EXP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "reg-exp", 2,
-            true);
+            "switch-case", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier REG_EXP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "reg-exp", 2);
+
     public final static FunctionIdentifier INJECT_FAILURE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "inject-failure", 2, true);
+            "inject-failure", 2);
+    public final static FunctionIdentifier CAST_RECORD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "cast-record", 1);
+
+    // Spatial and temporal type accessors
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_YEAR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "year", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_MONTH = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "month", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_DAY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "day", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_HOUR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "hour", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "minute", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_SEC = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "second", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_MILLISEC = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "millisecond", 1);
+
+    // Temporal functions
+    public static final FunctionIdentifier DATE_FROM_UNIX_TIME_IN_DAYS = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "date-from-unix-time-in-days", 1);
+    public static final FunctionIdentifier DATE_FROM_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "date-from-datetime", 1);
+    public final static FunctionIdentifier ADD_DATE_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-date-duration", 2);
+    public final static FunctionIdentifier SUBTRACT_DATE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-date", 2);
+    public final static FunctionIdentifier TIME_FROM_UNIX_TIME_IN_MS = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "time-from-unix-time-in-ms", 1);
+    public final static FunctionIdentifier TIME_FROM_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "time-from-datetime", 1);
+    public final static FunctionIdentifier SUBTRACT_TIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-time", 2);
+    public final static FunctionIdentifier ADD_TIME_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-time-duration", 2);
+    public final static FunctionIdentifier DATETIME_FROM_UNIX_TIME_IN_MS = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "datetime-from-unix-time-in-ms", 1);
+    public final static FunctionIdentifier DATETIME_FROM_DATE_TIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "datetime-from-date-time", 2);
+    public final static FunctionIdentifier SUBTRACT_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-datetime", 2);
+    public final static FunctionIdentifier ADD_DATETIME_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-datetime-duration", 2);
+    public final static FunctionIdentifier CALENDAR_DURATION_FROM_DATETIME = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "calendar-duration-from-datetime", 2);
+    public final static FunctionIdentifier CALENDAR_DURATION_FROM_DATE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "calendar-duration-from-date", 2);
+    public final static FunctionIdentifier ADJUST_TIME_FOR_TIMEZONE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "adjust-time-for-timezone", 2);
+    public final static FunctionIdentifier ADJUST_DATETIME_FOR_TIMEZONE = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "adjust-datetime-for-timezone", 2);
+
+    public final static FunctionIdentifier GET_POINT_X_COORDINATE_ACCESSOR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "get-x", 1);
+    public final static FunctionIdentifier GET_POINT_Y_COORDINATE_ACCESSOR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "get-y", 1);
+    public final static FunctionIdentifier GET_CIRCLE_RADIUS_ACCESSOR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "get-radius", 1);
+    public final static FunctionIdentifier GET_CIRCLE_CENTER_ACCESSOR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "get-center", 1);
+    public final static FunctionIdentifier GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR = new FunctionIdentifier(
+            FunctionConstants.ASTERIX_NS, "get-points", 1);
 
     public static final FunctionIdentifier EQ = AlgebricksBuiltinFunctions.EQ;
     public static final FunctionIdentifier LE = AlgebricksBuiltinFunctions.LE;
@@ -347,17 +517,21 @@
     public static final FunctionIdentifier NUMERIC_ADD = AlgebricksBuiltinFunctions.NUMERIC_ADD;
     public static final FunctionIdentifier IS_NULL = AlgebricksBuiltinFunctions.IS_NULL;
 
+    public static final FunctionIdentifier NOT_NULL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "not-null",
+            1);
+
     public static IFunctionInfo getAsterixFunctionInfo(FunctionIdentifier fid) {
-        IFunctionInfo finfo = asterixFunctionIdToInfo.get(fid);
+        IFunctionInfo finfo = finfoRepo.get(fid);;
         if (finfo == null) {
-            finfo = new AsterixFunctionInfo(fid, fid.isBuiltin());
-            if(fid.isBuiltin()){
-                asterixFunctionIdToInfo.put(fid, finfo);
-            }
+            finfo = new AsterixFunctionInfo(fid);
         }
         return finfo;
     }
 
+    public static AsterixFunctionInfo lookupFunction(FunctionIdentifier fid) {
+        return (AsterixFunctionInfo) finfoRepo.get(fid);
+    }
+
     static {
 
         // first, take care of Algebricks builtin functions
@@ -374,8 +548,9 @@
         add(NUMERIC_ADD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
 
         // and then, Asterix builtin functions
+        add(NOT_NULL, NotNullTypeComputer.INSTANCE);
         add(ANY_COLLECTION_MEMBER, NonTaggedCollectionMemberResultType.INSTANCE);
-        add(AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addPrivateFunction(AVG, OptionalADoubleTypeComputer.INSTANCE);
         add(BOOLEAN_CONSTRUCTOR, UnaryBooleanOrNullFunctionTypeComputer.INSTANCE);
         add(CARET, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
         add(CIRCLE_CONSTRUCTOR, OptionalACircleTypeComputer.INSTANCE);
@@ -397,7 +572,7 @@
             }
         });
         add(CONTAINS, ABooleanTypeComputer.INSTANCE);
-        add(COUNT, AInt32TypeComputer.INSTANCE);
+        addPrivateFunction(COUNT, AInt32TypeComputer.INSTANCE);
         add(COUNTHASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
         add(COUNTHASHED_WORD_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
         add(CREATE_CIRCLE, ACircleTypeComputer.INSTANCE);
@@ -413,6 +588,8 @@
         add(DURATION_CONSTRUCTOR, OptionalADurationTypeComputer.INSTANCE);
         add(EDIT_DISTANCE, AInt32TypeComputer.INSTANCE);
         add(EDIT_DISTANCE_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        add(EDIT_DISTANCE_STRING_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
+        add(EDIT_DISTANCE_LIST_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
         add(EMBED_TYPE, new IResultTypeComputer() {
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
@@ -430,7 +607,7 @@
         add(GET_HANDLE, null); // TODO
         add(GET_ITEM, NonTaggedGetItemResultType.INSTANCE);
         add(GET_DATA, null); // TODO
-        add(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addPrivateFunction(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
         add(GRAM_TOKENS, OrderedListOfAStringTypeComputer.INSTANCE);
         add(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
         add(HASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
@@ -451,11 +628,13 @@
         add(LIKE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
         add(LINE_CONSTRUCTOR, OptionalALineTypeComputer.INSTANCE);
         add(LISTIFY, OrderedListConstructorResultType.INSTANCE);
-        add(LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
+        addPrivateFunction(LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
         add(MAKE_FIELD_INDEX_HANDLE, null); // TODO
         add(MAKE_FIELD_NAME_HANDLE, null); // TODO
         add(MAX, NonTaggedSumTypeComputer.INSTANCE);
+        add(LOCAL_MAX, NonTaggedSumTypeComputer.INSTANCE);
         add(MIN, NonTaggedSumTypeComputer.INSTANCE);
+        add(LOCAL_MIN, NonTaggedSumTypeComputer.INSTANCE);
         add(NON_EMPTY_STREAM, ABooleanTypeComputer.INSTANCE);
         add(NULL_CONSTRUCTOR, ANullTypeComputer.INSTANCE);
         add(NUMERIC_UNARY_MINUS, NonTaggedUnaryMinusTypeComputer.INSTANCE);
@@ -464,6 +643,31 @@
         add(NUMERIC_DIVIDE, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
         add(NUMERIC_MOD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
         add(NUMERIC_IDIV, AInt32TypeComputer.INSTANCE);
+
+        add(NUMERIC_ABS, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        add(NUMERIC_CEILING, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        add(NUMERIC_FLOOR, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        add(NUMERIC_ROUND, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        add(NUMERIC_ROUND_HALF_TO_EVEN, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        add(NUMERIC_ROUND_HALF_TO_EVEN2, NonTaggedNumericRoundHalfToEven2TypeComputer.INSTANCE);
+
+        add(STRING_TO_CODEPOINT, OrderedListOfAInt32TypeComputer.INSTANCE);
+        add(CODEPOINT_TO_STRING, AStringTypeComputer.INSTANCE);
+        add(STRING_CONCAT, OptionalAStringTypeComputer.INSTANCE);
+        add(SUBSTRING2, Substring2TypeComputer.INSTANCE);
+        add(STRING_LENGTH, UnaryStringInt32OrNullTypeComputer.INSTANCE);
+        add(STRING_LOWERCASE, UnaryStringOrNullTypeComputer.INSTANCE);
+        add(STRING_START_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        add(STRING_END_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        add(STRING_MATCHES, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        add(STRING_MATCHES_WITH_FLAG, TripleStringBoolOrNullTypeComputer.INSTANCE);
+        add(STRING_REPLACE, TripleStringStringOrNullTypeComputer.INSTANCE);
+        add(STRING_REPLACE_WITH_FLAG, QuadStringStringOrNullTypeComputer.INSTANCE);
+        add(SUBSTRING_BEFORE, BinaryStringStringOrNullTypeComputer.INSTANCE);
+        add(SUBSTRING_AFTER, BinaryStringStringOrNullTypeComputer.INSTANCE);
+        add(STRING_EQUAL, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        add(STRING_JOIN, AStringTypeComputer.INSTANCE);
+
         add(OPEN_RECORD_CONSTRUCTOR, OpenRecordConstructorResultType.INSTANCE);
         add(ORDERED_LIST_CONSTRUCTOR, OrderedListConstructorResultType.INSTANCE);
         add(POINT_CONSTRUCTOR, OptionalAPointTypeComputer.INSTANCE);
@@ -486,14 +690,22 @@
         add(SERIAL_GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
         add(SERIAL_LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
         add(SERIAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
+        add(SERIAL_LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
         add(SIMILARITY_JACCARD, AFloatTypeComputer.INSTANCE);
         add(SIMILARITY_JACCARD_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        add(SIMILARITY_JACCARD_SORTED, AFloatTypeComputer.INSTANCE);
+        add(SIMILARITY_JACCARD_SORTED_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
         add(SIMILARITY_JACCARD_PREFIX, AFloatTypeComputer.INSTANCE);
         add(SIMILARITY_JACCARD_PREFIX_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
         add(SPATIAL_AREA, ADoubleTypeComputer.INSTANCE);
         add(SPATIAL_CELL, ARectangleTypeComputer.INSTANCE);
         add(SPATIAL_DISTANCE, ADoubleTypeComputer.INSTANCE);
         add(SPATIAL_INTERSECT, ABooleanTypeComputer.INSTANCE);
+        add(GET_POINT_X_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_POINT_Y_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_CIRCLE_RADIUS_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_CIRCLE_CENTER_ACCESSOR, APointTypeComputer.INSTANCE);
+        add(GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR, OrderedListOfAPointTypeComputer.INSTANCE);
         add(STARTS_WITH, ABooleanTypeComputer.INSTANCE);
         add(STRING_CONSTRUCTOR, OptionalAStringTypeComputer.INSTANCE);
         add(SUBSET_COLLECTION, new IResultTypeComputer() {
@@ -533,17 +745,18 @@
                 }
             }
         });
-        add(SUBSTRING, AStringTypeComputer.INSTANCE);
-        add(SUM, NonTaggedSumTypeComputer.INSTANCE);
+        add(SUBSTRING, SubstringTypeComputer.INSTANCE);
+        addPrivateFunction(SUM, NonTaggedSumTypeComputer.INSTANCE);
+        add(LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
         add(SWITCH_CASE, NonTaggedSwitchCaseComputer.INSTANCE);
         add(REG_EXP, ABooleanTypeComputer.INSTANCE);
         add(INJECT_FAILURE, InjectFailureTypeComputer.INSTANCE);
+        add(CAST_RECORD, CastRecordResultTypeComputer.INSTANCE);
 
         add(TID, AInt32TypeComputer.INSTANCE);
         add(TIME_CONSTRUCTOR, OptionalATimeTypeComputer.INSTANCE);
         add(TYPE_OF, null); // TODO
         add(UNORDERED_LIST_CONSTRUCTOR, UnorderedListConstructorResultType.INSTANCE);
-        add(YEAR, OptionalAInt32TypeComputer.INSTANCE);
         add(WORD_TOKENS, new IResultTypeComputer() {
 
             @Override
@@ -553,12 +766,64 @@
             }
         });
 
+        // temporal type accessors
+        add(ACCESSOR_TEMPORAL_YEAR, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_MONTH, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_DAY, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_HOUR, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_MIN, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_SEC, OptionalAInt32TypeComputer.INSTANCE);
+        add(ACCESSOR_TEMPORAL_MILLISEC, OptionalAInt32TypeComputer.INSTANCE);
+
+        // temporal functions
+        add(DATE_FROM_UNIX_TIME_IN_DAYS, OptionalADateTypeComputer.INSTANCE);
+        add(DATE_FROM_DATETIME, OptionalADateTypeComputer.INSTANCE);
+        add(ADD_DATE_DURATION, OptionalADateTypeComputer.INSTANCE);
+        add(SUBTRACT_DATE, OptionalADurationTypeComputer.INSTANCE);
+        add(TIME_FROM_UNIX_TIME_IN_MS, OptionalATimeTypeComputer.INSTANCE);
+        add(TIME_FROM_DATETIME, OptionalATimeTypeComputer.INSTANCE);
+        add(SUBTRACT_TIME, OptionalADurationTypeComputer.INSTANCE);
+        add(ADD_TIME_DURATION, OptionalATimeTypeComputer.INSTANCE);
+        add(DATETIME_FROM_DATE_TIME, OptionalADateTimeTypeComputer.INSTANCE);
+        add(DATETIME_FROM_UNIX_TIME_IN_MS, OptionalADateTimeTypeComputer.INSTANCE);
+        add(SUBTRACT_DATETIME, OptionalADurationTypeComputer.INSTANCE);
+        add(ADD_DATETIME_DURATION, OptionalADateTimeTypeComputer.INSTANCE);
+        add(CALENDAR_DURATION_FROM_DATETIME, OptionalADurationTypeComputer.INSTANCE);
+        add(CALENDAR_DURATION_FROM_DATE, OptionalADurationTypeComputer.INSTANCE);
+        add(ADJUST_DATETIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
+        add(ADJUST_TIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
+        add(INTERVAL_BEFORE, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_AFTER, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_MEETS, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_MET_BY, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_OVERLAPS, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_OVERLAPPED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        add(OVERLAP, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_STARTS, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_STARTED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_COVERS, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_COVERED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_ENDS, OptionalABooleanTypeComputer.INSTANCE);
+        add(INTERVAL_ENDED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        add(CURRENT_DATE, ADateTypeComputer.INSTANCE);
+        add(CURRENT_TIME, ATimeTypeComputer.INSTANCE);
+        add(CURRENT_DATETIME, ADateTimeTypeComputer.INSTANCE);
+
+        // interval constructors
+        add(INTERVAL_CONSTRUCTOR_DATE, OptionalAIntervalTypeComputer.INSTANCE);
+        add(INTERVAL_CONSTRUCTOR_TIME, OptionalAIntervalTypeComputer.INSTANCE);
+        add(INTERVAL_CONSTRUCTOR_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
+        add(INTERVAL_CONSTRUCTOR_START_FROM_DATE, OptionalAIntervalTypeComputer.INSTANCE);
+        add(INTERVAL_CONSTRUCTOR_START_FROM_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
+        add(INTERVAL_CONSTRUCTOR_START_FROM_TIME, OptionalAIntervalTypeComputer.INSTANCE);
+
         String metadataFunctionLoaderClassName = "edu.uci.ics.asterix.metadata.functions.MetadataBuiltinFunctions";
         try {
             Class.forName(metadataFunctionLoaderClassName);
         } catch (ClassNotFoundException e) {
             throw new RuntimeException(e);
         }
+
     }
 
     static {
@@ -583,15 +848,17 @@
         addGlobalAgg(COUNT, SUM);
 
         addAgg(MAX);
-        addLocalAgg(MAX, MAX);
+        addAgg(LOCAL_MAX);
+        addLocalAgg(MAX, LOCAL_MAX);
         addGlobalAgg(MAX, MAX);
 
         addAgg(MIN);
-        addLocalAgg(MIN, MIN);
+        addLocalAgg(MIN, LOCAL_MIN);
         addGlobalAgg(MIN, MIN);
 
         addAgg(SUM);
-        addLocalAgg(SUM, SUM);
+        addAgg(LOCAL_SUM);
+        addLocalAgg(SUM, LOCAL_SUM);
         addGlobalAgg(SUM, SUM);
 
         addAgg(LISTIFY);
@@ -600,6 +867,7 @@
         addSerialAgg(AVG, SERIAL_AVG);
         addSerialAgg(COUNT, SERIAL_COUNT);
         addSerialAgg(SUM, SERIAL_SUM);
+        addSerialAgg(LOCAL_SUM, SERIAL_LOCAL_SUM);
         addSerialAgg(LOCAL_AVG, SERIAL_LOCAL_AVG);
         addSerialAgg(GLOBAL_AVG, SERIAL_GLOBAL_AVG);
 
@@ -614,7 +882,8 @@
         addGlobalAgg(SERIAL_AVG, SERIAL_GLOBAL_AVG);
 
         addAgg(SERIAL_SUM);
-        addLocalAgg(SERIAL_SUM, SERIAL_SUM);
+        addAgg(SERIAL_LOCAL_SUM);
+        addLocalAgg(SERIAL_SUM, SERIAL_LOCAL_SUM);
         addGlobalAgg(SERIAL_SUM, SERIAL_SUM);
     }
 
@@ -672,8 +941,6 @@
         IFunctionInfo finfo = getAsterixFunctionInfo(fi);
         return finfo == null ? null : finfo.getFunctionIdentifier();
     }
-    
-    
 
     public static AggregateFunctionCallExpression makeAggregateFunctionExpression(FunctionIdentifier fi,
             List<Mutable<ILogicalExpression>> args) {
@@ -693,7 +960,7 @@
 
     public static boolean isAggregateFunctionSerializable(FunctionIdentifier fi) {
         IFunctionInfo finfo = getAsterixFunctionInfo(fi);
-        return aggregateToSerializableAggregate.get(finfo) != null ;
+        return aggregateToSerializableAggregate.get(finfo) != null;
     }
 
     public static AggregateFunctionCallExpression makeSerializableAggregateFunctionExpression(FunctionIdentifier fi,
@@ -702,8 +969,9 @@
         IFunctionInfo finfo = getAsterixFunctionInfo(fi);
         IFunctionInfo serializableFinfo = aggregateToSerializableAggregate.get(finfo);
         if (serializableFinfo == null)
-            throw new IllegalStateException("no serializable implementation for aggregate function " + serializableFinfo);
-       
+            throw new IllegalStateException("no serializable implementation for aggregate function "
+                    + serializableFinfo);
+
         IFunctionInfo fiLocal = aggregateToLocalAggregate.get(serializableFinfo);
         IFunctionInfo fiGlobal = aggregateToGlobalAggregate.get(serializableFinfo);
 
@@ -730,8 +998,14 @@
         IFunctionInfo functionInfo = getAsterixFunctionInfo(fi);
         builtinFunctionsSet.put(functionInfo, functionInfo);
         funTypeComputer.put(functionInfo, typeComputer);
-        asterixFunctionIdToInfo.put(fi, functionInfo);
-       // AsterixFunction asterixFunction = new AsterixFunction(fi.getName(), fi.getArity());
+        finfoRepo.put(fi);
+    }
+
+    private static IFunctionInfo addPrivateFunction(FunctionIdentifier fi, IResultTypeComputer typeComputer) {
+        IFunctionInfo functionInfo = getAsterixFunctionInfo(fi);
+        builtinFunctionsSet.put(functionInfo, functionInfo);
+        funTypeComputer.put(functionInfo, typeComputer);
+        return functionInfo;
     }
 
     private static void addAgg(FunctionIdentifier fi) {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
new file mode 100644
index 0000000..a6a5bd8
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
@@ -0,0 +1,73 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+
+public class AsterixExternalFunctionInfo extends AsterixFunctionInfo implements IExternalFunctionInfo {
+
+    private final IResultTypeComputer rtc;
+    private final List<IAType> argumentTypes;
+    private final String body;
+    private final String language;
+    private final FunctionKind kind;
+    private final IAType returnType;
+
+    public AsterixExternalFunctionInfo(){
+        super();
+        rtc = null;
+        argumentTypes= null;
+        body = null;
+        language=null;
+        kind = null;
+        returnType = null;
+                
+    }
+    
+    public AsterixExternalFunctionInfo(String namespace, AsterixFunction asterixFunction, FunctionKind kind,
+            List<IAType> argumentTypes, IAType returnType, IResultTypeComputer rtc, String body, String language) {
+        super(namespace, asterixFunction);
+        this.rtc = rtc;
+        this.argumentTypes = argumentTypes;
+        this.body = body;
+        this.language = language;
+        this.kind = kind;
+        this.returnType = returnType;
+    }
+
+    public IResultTypeComputer getResultTypeComputer() {
+        return rtc;
+    }
+
+    public List<IAType> getArgumenTypes() {
+        return argumentTypes;
+    }
+
+    @Override
+    public String getFunctionBody() {
+        return body;
+    }
+
+    @Override
+    public List<IAType> getParamList() {
+        return argumentTypes;
+    }
+
+    @Override
+    public String getLanguage() {
+        return language;
+    }
+
+    @Override
+    public FunctionKind getKind() {
+        return kind;
+    }
+
+    @Override
+    public IAType getReturnType() {
+        return returnType;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
index 23d5d58..e58681c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
@@ -14,26 +14,21 @@
  */
 package edu.uci.ics.asterix.om.functions;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import java.io.Serializable;
 
-public class AsterixFunction {
+public class AsterixFunction implements Serializable {
 
-    private final String functionName;
+    private final String name;
     private final int arity;
     public final static int VARARGS = -1;
 
-    public AsterixFunction(String functionName, int arity) {
-        this.functionName = functionName;
+    public AsterixFunction(String name, int arity) throws IllegalArgumentException {
+        this.name = name;
         this.arity = arity;
     }
-    
-    public AsterixFunction(FunctionIdentifier fid) {
-        this.functionName = fid.getName();
-        this.arity = fid.getArity();
-    }
 
-    public String getFunctionName() {
-        return functionName;
+    public String getName() {
+        return name;
     }
 
     public int getArity() {
@@ -41,7 +36,7 @@
     }
 
     public String toString() {
-        return functionName + "@" + arity;
+        return name;
     }
 
     @Override
@@ -54,8 +49,7 @@
         if (!(o instanceof AsterixFunction)) {
             return false;
         }
-        if (functionName.equals(((AsterixFunction) o).getFunctionName())
-                && (arity == ((AsterixFunction) o).getArity() || arity == VARARGS)) {
+        if (name.equals(((AsterixFunction) o).getName()) || arity == VARARGS) {
             return true;
         }
         return false;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
new file mode 100644
index 0000000..35cace1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.om.functions;
+
+
+public class AsterixFunctionIdentifier {
+
+    private final String dataverse;
+    private final AsterixFunction asterixFunction;
+
+    public AsterixFunctionIdentifier(String dataverse, AsterixFunction asterixFunction) {
+        this.dataverse = dataverse;
+        this.asterixFunction = asterixFunction;
+    }
+
+    public AsterixFunctionIdentifier(String dataverse, String name, int arity) {
+        this.dataverse = dataverse;
+        this.asterixFunction = new AsterixFunction(name, arity);
+    }
+
+    public String toString() {
+        return dataverse + ":" + asterixFunction;
+    }
+
+    public String getDataverse() {
+        return dataverse;
+    }
+
+    public AsterixFunction getAsterixFunction() {
+        return asterixFunction;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
index c5e4b99..4655c37 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
@@ -14,35 +14,37 @@
  */
 package edu.uci.ics.asterix.om.functions;
 
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
 
 public class AsterixFunctionInfo implements IFunctionInfo {
 
     private final FunctionIdentifier functionIdentifier;
-    
 
-    public AsterixFunctionInfo(String namespace, AsterixFunction asterixFunction, boolean isBuiltin) {
-        this.functionIdentifier = new FunctionIdentifier(namespace, asterixFunction.getFunctionName(),
-                asterixFunction.getArity(), isBuiltin);
+    public AsterixFunctionInfo(String namespace, AsterixFunction asterixFunction) {
+        this.functionIdentifier = new FunctionIdentifier(namespace, asterixFunction.getName(),
+                asterixFunction.getArity());
     }
 
-    public AsterixFunctionInfo(FunctionIdentifier functionIdentifier,
-            boolean isBuiltin) {
+    public AsterixFunctionInfo() {
+        functionIdentifier = null;
+    }
+
+    public AsterixFunctionInfo(FunctionIdentifier functionIdentifier) {
         this.functionIdentifier = functionIdentifier;
     }
 
+    public AsterixFunctionInfo(FunctionSignature functionSignature) {
+        this.functionIdentifier = new FunctionIdentifier(functionSignature.getNamespace(), functionSignature.getName(),
+                functionSignature.getArity());
+    }
+
     @Override
     public FunctionIdentifier getFunctionIdentifier() {
         return functionIdentifier;
     }
 
-    
-    @Override
-    public Object getInfo() {
-        throw new IllegalStateException();
-    }
-
     @Override
     public int hashCode() {
         return toString().hashCode();
@@ -54,7 +56,8 @@
             return false;
         }
         AsterixFunctionInfo info = (AsterixFunctionInfo) o;
-        return functionIdentifier.equals(info.getFunctionIdentifier());
+        return functionIdentifier.equals(info.getFunctionIdentifier())
+                && functionIdentifier.getArity() == info.getFunctionIdentifier().getArity();
     }
 
     @Override
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
new file mode 100644
index 0000000..c95f256
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
@@ -0,0 +1,36 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+
+public class FunctionInfoRepository {
+    private final Map<FunctionSignature, IFunctionInfo> functionMap;
+
+    public FunctionInfoRepository() {
+        functionMap = new ConcurrentHashMap<FunctionSignature, IFunctionInfo>();
+    }
+
+    public IFunctionInfo get(String namespace, String name, int arity) {
+        FunctionSignature fname = new FunctionSignature(namespace, name, arity);
+        return functionMap.get(fname);
+    }
+
+    public IFunctionInfo get(FunctionIdentifier fid) {
+        return get(fid.getNamespace(), fid.getName(), fid.getArity());
+    }
+
+    public void put(String namespace, String name, int arity) {
+        FunctionSignature functionSignature = new FunctionSignature(namespace, name, arity);
+        functionMap.put(functionSignature, new AsterixFunctionInfo(new FunctionIdentifier(namespace, name, arity)));
+    }
+
+    public void put(FunctionIdentifier fid) {
+        FunctionSignature functionSignature = new FunctionSignature(fid.getNamespace(), fid.getName(), fid.getArity());
+        functionMap.put(functionSignature, new AsterixFunctionInfo(fid));
+    }
+}
+
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
new file mode 100644
index 0000000..846c825
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.io.Serializable;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+
+public interface IExternalFunctionInfo extends IFunctionInfo, Serializable {
+
+    public IResultTypeComputer getResultTypeComputer();
+    
+    public IAType getReturnType();
+
+    public String getFunctionBody();
+
+    public List<IAType> getParamList();
+
+    public String getLanguage();
+
+    public FunctionKind getKind();
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptor.java
index 2fb5447..c372dec 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptor.java
@@ -1,12 +1,47 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.om.functions;
 
 import java.io.Serializable;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyRunningAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
 
 public interface IFunctionDescriptor extends Serializable {
     public FunctionIdentifier getIdentifier();
 
     public FunctionDescriptorTag getFunctionDescriptorTag();
+
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException;
+
+    public ICopyRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException;
+
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException;
+
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException;
+
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException;
+
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java
new file mode 100644
index 0000000..516bf51
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.functions;
+
+public interface IFunctionDescriptorFactory {
+
+    /**
+     * the artifact registered in function manager
+     * @return a new IFunctionDescriptor instance
+     */
+    public IFunctionDescriptor createFunctionDescriptor();
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionManager.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionManager.java
index 0820880..89a504e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionManager.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionManager.java
@@ -1,12 +1,13 @@
 package edu.uci.ics.asterix.om.functions;
 
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
-public interface IFunctionManager extends Iterable<IFunctionDescriptor> {
-    public void registerFunction(IFunctionDescriptor descriptor) throws AlgebricksException;
+public interface IFunctionManager extends Iterable<IFunctionDescriptorFactory> {
 
-    public void unregisterFunction(IFunctionDescriptor descriptor) throws AlgebricksException;
+    public void registerFunction(IFunctionDescriptorFactory descriptorFactory) throws AlgebricksException;
+
+    public void unregisterFunction(IFunctionDescriptorFactory descriptorFactory) throws AlgebricksException;
 
     public IFunctionDescriptor lookupFunction(FunctionIdentifier fid) throws AlgebricksException;
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AFlatValuePointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AFlatValuePointable.java
new file mode 100644
index 0000000..445e2a2
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AFlatValuePointable.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.container.IObjectFactory;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
+
+/**
+ * This class represents a flat field, e.g., int field, string field, and
+ * so on, based on a binary representation.
+ */
+public class AFlatValuePointable extends AbstractVisitablePointable {
+
+    /**
+     * DO NOT allow to create AFlatValuePointable object arbitrarily, force to
+     * use object pool based allocator. The factory is not public so that it
+     * cannot called in other places than PointableAllocator.
+     */
+    static IObjectFactory<IVisitablePointable, IAType> FACTORY = new IObjectFactory<IVisitablePointable, IAType>() {
+        public AFlatValuePointable create(IAType type) {
+            return new AFlatValuePointable();
+        }
+    };
+
+    /**
+     * private constructor, to prevent arbitrary creation
+     */
+    private AFlatValuePointable() {
+
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof IValueReference))
+            return false;
+
+        // get right raw data
+        IValueReference ivf = (IValueReference) o;
+        byte[] odata = ivf.getByteArray();
+        int ostart = ivf.getStartOffset();
+        int olen = ivf.getLength();
+
+        // get left raw data
+        byte[] data = getByteArray();
+        int start = getStartOffset();
+        int len = getLength();
+
+        // bytes length should be equal
+        if (len != olen)
+            return false;
+
+        // check each byte
+        for (int i = 0; i < len; i++) {
+            if (data[start + i] != odata[ostart + i])
+                return false;
+        }
+        return true;
+    }
+
+    @Override
+    public <R, T> R accept(IVisitablePointableVisitor<R, T> vistor, T tag) throws AsterixException {
+        return vistor.visit(this, tag);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AListPointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AListPointable.java
new file mode 100644
index 0000000..ab32b6b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AListPointable.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables;
+
+import java.io.DataOutputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.om.util.ResettableByteArrayOutputStream;
+import edu.uci.ics.asterix.om.util.container.IObjectFactory;
+
+/**
+ * This class interprets the binary data representation of a list, one can
+ * call getItems and getItemTags to get pointable objects for items and item
+ * type tags.
+ */
+public class AListPointable extends AbstractVisitablePointable {
+
+    /**
+     * DO NOT allow to create AListPointable object arbitrarily, force to use
+     * object pool based allocator, in order to have object reuse.
+     */
+    static IObjectFactory<IVisitablePointable, IAType> FACTORY = new IObjectFactory<IVisitablePointable, IAType>() {
+        public IVisitablePointable create(IAType type) {
+            return new AListPointable((AbstractCollectionType) type);
+        }
+    };
+
+    private final List<IVisitablePointable> items = new ArrayList<IVisitablePointable>();
+    private final List<IVisitablePointable> itemTags = new ArrayList<IVisitablePointable>();
+    private final PointableAllocator allocator = new PointableAllocator();
+
+    private final ResettableByteArrayOutputStream dataBos = new ResettableByteArrayOutputStream();
+    private final DataOutputStream dataDos = new DataOutputStream(dataBos);
+
+    private IAType itemType;
+    private ATypeTag itemTag;
+    private boolean typedItemList = false;
+    private boolean ordered = false;
+
+    /**
+     * private constructor, to prevent constructing it arbitrarily
+     * 
+     * @param inputType
+     */
+    private AListPointable(AbstractCollectionType inputType) {
+        if (inputType instanceof AOrderedListType) {
+            ordered = true;
+        }
+        if (inputType != null && inputType.getItemType() != null) {
+            itemType = inputType.getItemType();
+            if (itemType.getTypeTag() == ATypeTag.ANY) {
+                typedItemList = false;
+            } else {
+                typedItemList = true;
+                itemTag = inputType.getItemType().getTypeTag();
+            }
+        } else {
+            this.typedItemList = false;
+        }
+    }
+
+    private void reset() {
+        allocator.reset();
+        items.clear();
+        itemTags.clear();
+        dataBos.reset();
+    }
+
+    @Override
+    public void set(byte[] b, int s, int len) {
+        reset();
+
+        int numberOfitems = AInt32SerializerDeserializer.getInt(b, s + 6);
+        int itemOffset;
+        if (typedItemList) {
+            switch (itemTag) {
+                case STRING:
+                case RECORD:
+                case ORDEREDLIST:
+                case UNORDEREDLIST:
+                case ANY:
+                    itemOffset = s + 10 + (numberOfitems * 4);
+                    break;
+                default:
+                    itemOffset = s + 10;
+            }
+        } else {
+            itemOffset = s + 10 + (numberOfitems * 4);
+        }
+        int itemLength = 0;
+        try {
+            if (typedItemList) {
+                for (int i = 0; i < numberOfitems; i++) {
+                    itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, false);
+                    IVisitablePointable tag = allocator.allocateEmpty();
+                    IVisitablePointable item = allocator.allocateFieldValue(itemType);
+
+                    // set item type tag
+                    int start = dataBos.size();
+                    dataDos.writeByte(itemTag.serialize());
+                    int end = dataBos.size();
+                    tag.set(dataBos.getByteArray(), start, end - start);
+                    itemTags.add(tag);
+
+                    // set item value
+                    start = dataBos.size();
+                    dataDos.writeByte(itemTag.serialize());
+                    dataDos.write(b, itemOffset, itemLength);
+                    end = dataBos.size();
+                    item.set(dataBos.getByteArray(), start, end - start);
+                    itemOffset += itemLength;
+                    items.add(item);
+                }
+            } else {
+                for (int i = 0; i < numberOfitems; i++) {
+                    itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[itemOffset]);
+                    itemLength = NonTaggedFormatUtil.getFieldValueLength(b, itemOffset, itemTag, true) + 1;
+                    IVisitablePointable tag = allocator.allocateEmpty();
+                    IVisitablePointable item = allocator.allocateFieldValue(itemTag);
+
+                    // set item type tag
+                    int start = dataBos.size();
+                    dataDos.writeByte(itemTag.serialize());
+                    int end = dataBos.size();
+                    tag.set(dataBos.getByteArray(), start, end - start);
+                    itemTags.add(tag);
+
+                    // open part field already include the type tag
+                    item.set(b, itemOffset, itemLength);
+                    itemOffset += itemLength;
+                    items.add(item);
+                }
+            }
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    @Override
+    public <R, T> R accept(IVisitablePointableVisitor<R, T> vistor, T tag) throws AsterixException {
+        return vistor.visit(this, tag);
+    }
+
+    public List<IVisitablePointable> getItems() {
+        return items;
+    }
+
+    public List<IVisitablePointable> getItemTags() {
+        return itemTags;
+    }
+
+    public boolean ordered() {
+        return ordered;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java
new file mode 100644
index 0000000..7e097af
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java
@@ -0,0 +1,285 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.AqlNullWriterFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.om.util.ResettableByteArrayOutputStream;
+import edu.uci.ics.asterix.om.util.container.IObjectFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.INullWriter;
+
+/**
+ * This class interprets the binary data representation of a record. One can
+ * call getFieldNames, getFieldTypeTags and getFieldValues to get pointable
+ * objects for field names, field type tags, and field values.
+ * 
+ */
+public class ARecordPointable extends AbstractVisitablePointable {
+
+    /**
+     * DO NOT allow to create ARecordPointable object arbitrarily, force to use
+     * object pool based allocator, in order to have object reuse
+     */
+    static IObjectFactory<IVisitablePointable, IAType> FACTORY = new IObjectFactory<IVisitablePointable, IAType>() {
+        public IVisitablePointable create(IAType type) {
+            return new ARecordPointable((ARecordType) type);
+        }
+    };
+
+    // access results: field names, field types, and field values
+    private final List<IVisitablePointable> fieldNames = new ArrayList<IVisitablePointable>();
+    private final List<IVisitablePointable> fieldTypeTags = new ArrayList<IVisitablePointable>();
+    private final List<IVisitablePointable> fieldValues = new ArrayList<IVisitablePointable>();
+
+    // pointable allocator
+    private final PointableAllocator allocator = new PointableAllocator();
+
+    private final ResettableByteArrayOutputStream typeBos = new ResettableByteArrayOutputStream();
+    private final DataOutputStream typeDos = new DataOutputStream(typeBos);
+
+    private final ResettableByteArrayOutputStream dataBos = new ResettableByteArrayOutputStream();
+    private final DataOutputStream dataDos = new DataOutputStream(dataBos);
+
+    private final ARecordType inputRecType;
+
+    private final int numberOfSchemaFields;
+    private final int[] fieldOffsets;
+    private final IVisitablePointable nullReference = AFlatValuePointable.FACTORY.create(null);
+
+    private int closedPartTypeInfoSize = 0;
+    private int offsetArrayOffset;
+    private ATypeTag typeTag;
+
+    /**
+     * private constructor, to prevent constructing it arbitrarily
+     * 
+     * @param inputType
+     */
+    private ARecordPointable(ARecordType inputType) {
+        this.inputRecType = inputType;
+        IAType[] fieldTypes = inputType.getFieldTypes();
+        String[] fieldNameStrs = inputType.getFieldNames();
+        numberOfSchemaFields = fieldTypes.length;
+
+        // initialize the buffer for closed parts(fieldName bytes+ type bytes) +
+        // constant(null bytes)
+        typeBos.reset();
+        try {
+            for (int i = 0; i < numberOfSchemaFields; i++) {
+                ATypeTag ftypeTag = fieldTypes[i].getTypeTag();
+
+                if (fieldTypes[i].getTypeTag() == ATypeTag.UNION
+                        && NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[i]))
+                    // optional field: add the embedded non-null type tag
+                    ftypeTag = ((AUnionType) fieldTypes[i]).getUnionList()
+                            .get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST).getTypeTag();
+
+                // add type tag Reference
+                int tagStart = typeBos.size();
+                typeDos.writeByte(ftypeTag.serialize());
+                int tagEnd = typeBos.size();
+                IVisitablePointable typeTagReference = AFlatValuePointable.FACTORY.create(null);
+                typeTagReference.set(typeBos.getByteArray(), tagStart, tagEnd - tagStart);
+                fieldTypeTags.add(typeTagReference);
+
+                // add type name Reference (including a astring type tag)
+                int nameStart = typeBos.size();
+                typeDos.writeByte(ATypeTag.STRING.serialize());
+                typeDos.writeUTF(fieldNameStrs[i]);
+                int nameEnd = typeBos.size();
+                IVisitablePointable typeNameReference = AFlatValuePointable.FACTORY.create(null);
+                typeNameReference.set(typeBos.getByteArray(), nameStart, nameEnd - nameStart);
+                fieldNames.add(typeNameReference);
+            }
+
+            // initialize a constant: null value bytes reference
+            int nullFieldStart = typeBos.size();
+            INullWriter nullWriter = AqlNullWriterFactory.INSTANCE.createNullWriter();
+            nullWriter.writeNull(typeDos);
+            int nullFieldEnd = typeBos.size();
+            nullReference.set(typeBos.getByteArray(), nullFieldStart, nullFieldEnd - nullFieldStart);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
+        closedPartTypeInfoSize = typeBos.size();
+        fieldOffsets = new int[numberOfSchemaFields];
+    }
+
+    private void reset() {
+        typeBos.reset(closedPartTypeInfoSize);
+        dataBos.reset(0);
+        // reset the allocator
+        allocator.reset();
+
+        // clean up the returned containers
+        for (int i = fieldNames.size() - 1; i >= numberOfSchemaFields; i--)
+            fieldNames.remove(i);
+        for (int i = fieldTypeTags.size() - 1; i >= numberOfSchemaFields; i--)
+            fieldTypeTags.remove(i);
+        fieldValues.clear();
+    }
+
+    @Override
+    public void set(byte[] b, int start, int len) {
+        // clear the previous states
+        reset();
+        super.set(b, start, len);
+
+        boolean isExpanded = false;
+        int openPartOffset = 0;
+        int s = start;
+        int recordOffset = s;
+        if (inputRecType == null) {
+            openPartOffset = s + AInt32SerializerDeserializer.getInt(b, s + 6);
+            s += 8;
+            isExpanded = true;
+        } else {
+            if (inputRecType.isOpen()) {
+                isExpanded = b[s + 5] == 1 ? true : false;
+                if (isExpanded) {
+                    openPartOffset = s + AInt32SerializerDeserializer.getInt(b, s + 6);
+                    s += 10;
+                } else {
+                    s += 6;
+                }
+            } else {
+                s += 5;
+            }
+        }
+        try {
+            if (numberOfSchemaFields > 0) {
+                s += 4;
+                int nullBitMapOffset = 0;
+                boolean hasNullableFields = NonTaggedFormatUtil.hasNullableField(inputRecType);
+                if (hasNullableFields) {
+                    nullBitMapOffset = s;
+                    offsetArrayOffset = s
+                            + (this.numberOfSchemaFields % 8 == 0 ? numberOfSchemaFields / 8
+                                    : numberOfSchemaFields / 8 + 1);
+                } else {
+                    offsetArrayOffset = s;
+                }
+                for (int i = 0; i < numberOfSchemaFields; i++) {
+                    fieldOffsets[i] = AInt32SerializerDeserializer.getInt(b, offsetArrayOffset) + recordOffset;
+                    offsetArrayOffset += 4;
+                }
+                for (int fieldNumber = 0; fieldNumber < numberOfSchemaFields; fieldNumber++) {
+                    if (hasNullableFields) {
+                        byte b1 = b[nullBitMapOffset + fieldNumber / 8];
+                        int p = 1 << (7 - (fieldNumber % 8));
+                        if ((b1 & p) == 0) {
+                            // set null value (including type tag inside)
+                            fieldValues.add(nullReference);
+                            continue;
+                        }
+                    }
+                    IAType[] fieldTypes = inputRecType.getFieldTypes();
+                    int fieldValueLength = 0;
+
+                    IAType fieldType = fieldTypes[fieldNumber];
+                    if (fieldTypes[fieldNumber].getTypeTag() == ATypeTag.UNION) {
+                        if (NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[fieldNumber])) {
+                            fieldType = ((AUnionType) fieldTypes[fieldNumber]).getUnionList().get(
+                                    NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+                            typeTag = fieldType.getTypeTag();
+                            fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffsets[fieldNumber],
+                                    typeTag, false);
+                        }
+                    } else {
+                        typeTag = fieldTypes[fieldNumber].getTypeTag();
+                        fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffsets[fieldNumber],
+                                typeTag, false);
+                    }
+                    // set field value (including the type tag)
+                    int fstart = dataBos.size();
+                    dataDos.writeByte(typeTag.serialize());
+                    dataDos.write(b, fieldOffsets[fieldNumber], fieldValueLength);
+                    int fend = dataBos.size();
+                    IVisitablePointable fieldValue = allocator.allocateFieldValue(fieldType);
+                    fieldValue.set(dataBos.getByteArray(), fstart, fend - fstart);
+                    fieldValues.add(fieldValue);
+                }
+            }
+            if (isExpanded) {
+                int numberOfOpenFields = AInt32SerializerDeserializer.getInt(b, openPartOffset);
+                int fieldOffset = openPartOffset + 4 + (8 * numberOfOpenFields);
+                for (int i = 0; i < numberOfOpenFields; i++) {
+                    // set the field name (including a type tag, which is
+                    // astring)
+                    int fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffset, ATypeTag.STRING,
+                            false);
+                    int fnstart = dataBos.size();
+                    dataDos.writeByte(ATypeTag.STRING.serialize());
+                    dataDos.write(b, fieldOffset, fieldValueLength);
+                    int fnend = dataBos.size();
+                    IVisitablePointable fieldName = allocator.allocateEmpty();
+                    fieldName.set(dataBos.getByteArray(), fnstart, fnend - fnstart);
+                    fieldNames.add(fieldName);
+                    fieldOffset += fieldValueLength;
+
+                    // set the field type tag
+                    IVisitablePointable fieldTypeTag = allocator.allocateEmpty();
+                    fieldTypeTag.set(b, fieldOffset, 1);
+                    fieldTypeTags.add(fieldTypeTag);
+                    typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[fieldOffset]);
+
+                    // set the field value (already including type tag)
+                    fieldValueLength = NonTaggedFormatUtil.getFieldValueLength(b, fieldOffset, typeTag, true) + 1;
+
+                    // allocate
+                    IVisitablePointable fieldValueAccessor = allocator.allocateFieldValue(typeTag);
+                    fieldValueAccessor.set(b, fieldOffset, fieldValueLength);
+                    fieldValues.add(fieldValueAccessor);
+                    fieldOffset += fieldValueLength;
+                }
+            }
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public List<IVisitablePointable> getFieldNames() {
+        return fieldNames;
+    }
+
+    public List<IVisitablePointable> getFieldTypeTags() {
+        return fieldTypeTags;
+    }
+
+    public List<IVisitablePointable> getFieldValues() {
+        return fieldValues;
+    }
+
+    @Override
+    public <R, T> R accept(IVisitablePointableVisitor<R, T> vistor, T tag) throws AsterixException {
+        return vistor.visit(this, tag);
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AbstractVisitablePointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AbstractVisitablePointable.java
new file mode 100644
index 0000000..943a967
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/AbstractVisitablePointable.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables;
+
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
+
+/**
+ * This class implements several "routine" methods in IVisitablePointable
+ * interface, so that subclasses do not need to repeat the same code.
+ */
+public abstract class AbstractVisitablePointable implements IVisitablePointable {
+
+    private byte[] data;
+    private int start = -1;
+    private int len = -1;
+
+    @Override
+    public byte[] getByteArray() {
+        return data;
+    }
+
+    @Override
+    public int getLength() {
+        return len;
+    }
+
+    @Override
+    public int getStartOffset() {
+        return start;
+    }
+
+    @Override
+    public void set(byte[] b, int start, int len) {
+        this.data = b;
+        this.start = start;
+        this.len = len;
+    }
+
+    @Override
+    public void set(IValueReference ivf) {
+        set(ivf.getByteArray(), ivf.getStartOffset(), ivf.getLength());
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/PointableAllocator.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/PointableAllocator.java
new file mode 100644
index 0000000..5ad2ccb
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/PointableAllocator.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables;
+
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.container.IObjectPool;
+import edu.uci.ics.asterix.om.util.container.ListObjectPool;
+
+/**
+ * This class is the ONLY place to create IVisitablePointable object instances,
+ * to enforce use of an object pool.
+ */
+public class PointableAllocator {
+
+    private IObjectPool<IVisitablePointable, IAType> flatValueAllocator = new ListObjectPool<IVisitablePointable, IAType>(
+            AFlatValuePointable.FACTORY);
+    private IObjectPool<IVisitablePointable, IAType> recordValueAllocator = new ListObjectPool<IVisitablePointable, IAType>(
+            ARecordPointable.FACTORY);
+    private IObjectPool<IVisitablePointable, IAType> listValueAllocator = new ListObjectPool<IVisitablePointable, IAType>(
+            AListPointable.FACTORY);
+
+    public IVisitablePointable allocateEmpty() {
+        return flatValueAllocator.allocate(null);
+    }
+
+    /**
+     * allocate closed part value pointable
+     * 
+     * @param type
+     * @return the pointable object
+     */
+    public IVisitablePointable allocateFieldValue(IAType type) {
+        if (type == null)
+            return flatValueAllocator.allocate(null);
+        else if (type.getTypeTag().equals(ATypeTag.RECORD))
+            return recordValueAllocator.allocate(type);
+        else if (type.getTypeTag().equals(ATypeTag.UNORDEREDLIST) || type.getTypeTag().equals(ATypeTag.ORDEREDLIST))
+            return listValueAllocator.allocate(type);
+        else
+            return flatValueAllocator.allocate(null);
+    }
+
+    /**
+     * allocate open part value pointable
+     * 
+     * @param typeTag
+     * @return the pointable object
+     */
+    public IVisitablePointable allocateFieldValue(ATypeTag typeTag) {
+        if (typeTag == null)
+            return flatValueAllocator.allocate(null);
+        else if (typeTag.equals(ATypeTag.RECORD))
+            return recordValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
+        else if (typeTag.equals(ATypeTag.UNORDEREDLIST))
+            return listValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE);
+        else if (typeTag.equals(ATypeTag.ORDEREDLIST))
+            return listValueAllocator.allocate(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
+        else
+            return flatValueAllocator.allocate(null);
+    }
+
+    public IVisitablePointable allocateListValue(IAType type) {
+        return listValueAllocator.allocate(type);
+    }
+
+    public IVisitablePointable allocateRecordValue(IAType type) {
+        return recordValueAllocator.allocate(type);
+    }
+
+    public void reset() {
+        flatValueAllocator.reset();
+        recordValueAllocator.reset();
+        listValueAllocator.reset();
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/DefaultOpenFieldType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/DefaultOpenFieldType.java
new file mode 100644
index 0000000..45ae5c5
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/DefaultOpenFieldType.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.base;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.exceptions.AsterixRuntimeException;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * This class serves as the repository for the default record type and list type
+ * fields in the open part, e.g., a "record" (nested) field in the open part is
+ * always a fully open one, and a "list" field in the open part is always a list
+ * of "ANY".
+ */
+public class DefaultOpenFieldType {
+
+    // nested open field rec type
+    public static ARecordType NESTED_OPEN_RECORD_TYPE;
+
+    static {
+        try {
+            NESTED_OPEN_RECORD_TYPE = new ARecordType("nested-open", new String[] {}, new IAType[] {}, true);
+        } catch (AsterixException e) {
+            throw new AsterixRuntimeException();
+        }
+    }
+
+    // nested open list type
+    public static AOrderedListType NESTED_OPEN_AORDERED_LIST_TYPE = new AOrderedListType(BuiltinType.ANY,
+            "nested-ordered-list");
+
+    // nested open list type
+    public static AUnorderedListType NESTED_OPEN_AUNORDERED_LIST_TYPE = new AUnorderedListType(BuiltinType.ANY,
+            "nested-unordered-list");
+
+    public static IAType getDefaultOpenFieldType(ATypeTag tag) {
+        if (tag.equals(ATypeTag.RECORD))
+            return NESTED_OPEN_RECORD_TYPE;
+        if (tag.equals(ATypeTag.ORDEREDLIST))
+            return NESTED_OPEN_AORDERED_LIST_TYPE;
+        if (tag.equals(ATypeTag.UNORDEREDLIST))
+            return NESTED_OPEN_AUNORDERED_LIST_TYPE;
+        else
+            return null;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/IVisitablePointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/IVisitablePointable.java
new file mode 100644
index 0000000..7456ee8
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/base/IVisitablePointable.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.base;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.hyracks.data.std.api.IPointable;
+
+/**
+ * This interface extends IPointable with a visitor interface in order to ease
+ * programming for recursive record structures.
+ */
+public interface IVisitablePointable extends IPointable {
+
+    public <R, T> R accept(IVisitablePointableVisitor<R, T> vistor, T tag) throws AsterixException;
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ACastVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ACastVisitor.java
new file mode 100644
index 0000000..9fccf4a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ACastVisitor.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.cast;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.AFlatValuePointable;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+
+/**
+ * This class is a IVisitablePointableVisitor implementation which recursively
+ * visit a given record, list or flat value of a given type, and cast it to a
+ * specified type. For example:
+ * A record { "hobby": {{"music", "coding"}}, "id": "001", "name":
+ * "Person Three"} which confirms to closed type ( id: string, name: string,
+ * hobby: {{string}}? ) can be casted to a open type (id: string )
+ * Since the open/closed part of a record has a completely different underlying
+ * memory/storage layout, the visitor will change the layout as specified at
+ * runtime.
+ */
+public class ACastVisitor implements IVisitablePointableVisitor<Void, Triple<IVisitablePointable, IAType, Boolean>> {
+
+    private final Map<IVisitablePointable, ARecordCaster> raccessorToCaster = new HashMap<IVisitablePointable, ARecordCaster>();
+    private final Map<IVisitablePointable, AListCaster> laccessorToCaster = new HashMap<IVisitablePointable, AListCaster>();
+
+    @Override
+    public Void visit(AListPointable accessor, Triple<IVisitablePointable, IAType, Boolean> arg)
+            throws AsterixException {
+        AListCaster caster = laccessorToCaster.get(accessor);
+        if (caster == null) {
+            caster = new AListCaster();
+            laccessorToCaster.put(accessor, caster);
+        }
+        try {
+            if (arg.second.getTypeTag().equals(ATypeTag.ANY)) {
+                arg.second = DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE;
+            }
+            caster.castList(accessor, arg.first, (AbstractCollectionType) arg.second, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(ARecordPointable accessor, Triple<IVisitablePointable, IAType, Boolean> arg)
+            throws AsterixException {
+        ARecordCaster caster = raccessorToCaster.get(accessor);
+        if (caster == null) {
+            caster = new ARecordCaster();
+            raccessorToCaster.put(accessor, caster);
+        }
+        try {
+            if (arg.second.getTypeTag().equals(ATypeTag.ANY)) {
+                arg.second = DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE;
+            }
+            caster.castRecord(accessor, arg.first, (ARecordType) arg.second, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(AFlatValuePointable accessor, Triple<IVisitablePointable, IAType, Boolean> arg) {
+        // set the pointer for result
+        arg.first.set(accessor);
+        return null;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/AListCaster.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/AListCaster.java
new file mode 100644
index 0000000..c65b3eb
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/AListCaster.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.cast;
+
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.List;
+
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.ResettableByteArrayOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+
+/**
+ * This class is to do the runtime type cast for a list. It is ONLY visible to
+ * ACastVisitor.
+ */
+class AListCaster {
+    // pointable allocator
+    private final PointableAllocator allocator = new PointableAllocator();
+
+    // for storing the cast result
+    private final IVisitablePointable itemTempReference = allocator.allocateEmpty();
+    private final Triple<IVisitablePointable, IAType, Boolean> itemVisitorArg = new Triple<IVisitablePointable, IAType, Boolean>(
+            itemTempReference, null, null);
+
+    private final UnorderedListBuilder unOrderedListBuilder = new UnorderedListBuilder();
+    private final OrderedListBuilder orderedListBuilder = new OrderedListBuilder();
+
+    private final ResettableByteArrayOutputStream dataBos = new ResettableByteArrayOutputStream();
+    private final DataOutput dataDos = new DataOutputStream(dataBos);
+    private IAType reqItemType;
+
+    public AListCaster() {
+
+    }
+
+    public void castList(AListPointable listAccessor, IVisitablePointable resultAccessor,
+            AbstractCollectionType reqType, ACastVisitor visitor) throws IOException, AsterixException {
+        if (reqType.getTypeTag().equals(ATypeTag.UNORDEREDLIST)) {
+            unOrderedListBuilder.reset((AUnorderedListType) reqType);
+            reqItemType = reqType.getItemType();
+        }
+        if (reqType.getTypeTag().equals(ATypeTag.ORDEREDLIST)) {
+            orderedListBuilder.reset((AOrderedListType) reqType);
+            reqItemType = reqType.getItemType();
+        }
+        dataBos.reset();
+
+        List<IVisitablePointable> itemTags = listAccessor.getItemTags();
+        List<IVisitablePointable> items = listAccessor.getItems();
+
+        int start = dataBos.size();
+        for (int i = 0; i < items.size(); i++) {
+            IVisitablePointable itemTypeTag = itemTags.get(i);
+            IVisitablePointable item = items.get(i);
+            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(itemTypeTag.getByteArray()[itemTypeTag
+                    .getStartOffset()]);
+            if (reqItemType == null || reqItemType.getTypeTag().equals(ATypeTag.ANY)) {
+                itemVisitorArg.second = DefaultOpenFieldType.getDefaultOpenFieldType(typeTag);
+                item.accept(visitor, itemVisitorArg);
+            } else {
+                if (typeTag != reqItemType.getTypeTag())
+                    throw new AsterixException("mismatched item type");
+                itemVisitorArg.second = reqItemType;
+                item.accept(visitor, itemVisitorArg);
+            }
+            if (reqType.getTypeTag().equals(ATypeTag.ORDEREDLIST)) {
+                orderedListBuilder.addItem(itemVisitorArg.first);
+            }
+            if (reqType.getTypeTag().equals(ATypeTag.UNORDEREDLIST)) {
+                unOrderedListBuilder.addItem(itemVisitorArg.first);
+            }
+        }
+        if (reqType.getTypeTag().equals(ATypeTag.ORDEREDLIST)) {
+            orderedListBuilder.write(dataDos, true);
+        }
+        if (reqType.getTypeTag().equals(ATypeTag.UNORDEREDLIST)) {
+            unOrderedListBuilder.write(dataDos, true);
+        }
+        int end = dataBos.size();
+        resultAccessor.set(dataBos.getByteArray(), start, end - start);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ARecordCaster.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ARecordCaster.java
new file mode 100644
index 0000000..494ea6f
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/cast/ARecordCaster.java
@@ -0,0 +1,344 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.cast;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.AqlNullWriterFactory;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.printer.APrintVisitor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.om.util.ResettableByteArrayOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.INullWriter;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IValueReference;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * This class is to do the runtime type cast for a record. It is ONLY visible to
+ * ACastVisitor.
+ */
+class ARecordCaster {
+
+    // pointable allocator
+    private final PointableAllocator allocator = new PointableAllocator();
+
+    private final List<IVisitablePointable> reqFieldNames = new ArrayList<IVisitablePointable>();
+    private final List<IVisitablePointable> reqFieldTypeTags = new ArrayList<IVisitablePointable>();
+    private ARecordType cachedReqType = null;
+
+    private final ResettableByteArrayOutputStream bos = new ResettableByteArrayOutputStream();
+    private final DataOutputStream dos = new DataOutputStream(bos);
+
+    private final RecordBuilder recBuilder = new RecordBuilder();
+    private final IVisitablePointable nullReference = allocator.allocateEmpty();
+    private final IVisitablePointable nullTypeTag = allocator.allocateEmpty();
+
+    private final IBinaryComparator fieldNameComparator = PointableBinaryComparatorFactory.of(
+            UTF8StringPointable.FACTORY).createBinaryComparator();
+
+    private final ByteArrayAccessibleOutputStream outputBos = new ByteArrayAccessibleOutputStream();
+    private final DataOutputStream outputDos = new DataOutputStream(outputBos);
+
+    private final IVisitablePointable fieldTempReference = allocator.allocateEmpty();
+    private final Triple<IVisitablePointable, IAType, Boolean> nestedVisitorArg = new Triple<IVisitablePointable, IAType, Boolean>(
+            fieldTempReference, null, null);
+
+    private int numInputFields = 0;
+
+    // describe closed fields in the required type
+    private int[] fieldPermutation;
+    private boolean[] optionalFields;
+
+    // describe fields (open or not) in the input records
+    private boolean[] openFields;
+    private int[] fieldNamesSortedIndex;
+    private int[] reqFieldNamesSortedIndex;
+
+    public ARecordCaster() {
+        try {
+            bos.reset();
+            int start = bos.size();
+            INullWriter nullWriter = AqlNullWriterFactory.INSTANCE.createNullWriter();
+            nullWriter.writeNull(dos);
+            int end = bos.size();
+            nullReference.set(bos.getByteArray(), start, end - start);
+            start = bos.size();
+            dos.write(ATypeTag.NULL.serialize());
+            end = bos.size();
+            nullTypeTag.set(bos.getByteArray(), start, end);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public void castRecord(ARecordPointable recordAccessor, IVisitablePointable resultAccessor, ARecordType reqType,
+            ACastVisitor visitor) throws IOException, AsterixException {
+        List<IVisitablePointable> fieldNames = recordAccessor.getFieldNames();
+        List<IVisitablePointable> fieldTypeTags = recordAccessor.getFieldTypeTags();
+        List<IVisitablePointable> fieldValues = recordAccessor.getFieldValues();
+        numInputFields = fieldNames.size();
+
+        if (openFields == null || numInputFields > openFields.length) {
+            openFields = new boolean[numInputFields];
+            fieldNamesSortedIndex = new int[numInputFields];
+        }
+        if (cachedReqType == null || !reqType.equals(cachedReqType)) {
+            loadRequiredType(reqType);
+        }
+
+        // clear the previous states
+        reset();
+        matchClosedPart(fieldNames, fieldTypeTags, fieldValues);
+        writeOutput(fieldNames, fieldTypeTags, fieldValues, outputDos, visitor);
+        resultAccessor.set(outputBos.getByteArray(), 0, outputBos.size());
+    }
+
+    private void reset() {
+        for (int i = 0; i < numInputFields; i++)
+            openFields[i] = true;
+        for (int i = 0; i < fieldPermutation.length; i++)
+            fieldPermutation[i] = -1;
+        for (int i = 0; i < numInputFields; i++)
+            fieldNamesSortedIndex[i] = i;
+        outputBos.reset();
+    }
+
+    private void loadRequiredType(ARecordType reqType) throws IOException {
+        reqFieldNames.clear();
+        reqFieldTypeTags.clear();
+
+        cachedReqType = reqType;
+        int numSchemaFields = reqType.getFieldTypes().length;
+        IAType[] fieldTypes = reqType.getFieldTypes();
+        String[] fieldNames = reqType.getFieldNames();
+        fieldPermutation = new int[numSchemaFields];
+        optionalFields = new boolean[numSchemaFields];
+        for (int i = 0; i < optionalFields.length; i++)
+            optionalFields[i] = false;
+
+        bos.reset(nullReference.getStartOffset() + nullReference.getLength());
+        for (int i = 0; i < numSchemaFields; i++) {
+            ATypeTag ftypeTag = fieldTypes[i].getTypeTag();
+            String fname = fieldNames[i];
+
+            // add type tag pointable
+            if (fieldTypes[i].getTypeTag() == ATypeTag.UNION
+                    && NonTaggedFormatUtil.isOptionalField((AUnionType) fieldTypes[i])) {
+                // optional field: add the embedded non-null type tag
+                ftypeTag = ((AUnionType) fieldTypes[i]).getUnionList()
+                        .get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST).getTypeTag();
+                optionalFields[i] = true;
+            }
+            int tagStart = bos.size();
+            dos.writeByte(ftypeTag.serialize());
+            int tagEnd = bos.size();
+            IVisitablePointable typeTagPointable = allocator.allocateEmpty();
+            typeTagPointable.set(bos.getByteArray(), tagStart, tagEnd - tagStart);
+            reqFieldTypeTags.add(typeTagPointable);
+
+            // add type name pointable (including a string type tag)
+            int nameStart = bos.size();
+            dos.write(ATypeTag.STRING.serialize());
+            dos.writeUTF(fname);
+            int nameEnd = bos.size();
+            IVisitablePointable typeNamePointable = allocator.allocateEmpty();
+            typeNamePointable.set(bos.getByteArray(), nameStart, nameEnd - nameStart);
+            reqFieldNames.add(typeNamePointable);
+        }
+
+        reqFieldNamesSortedIndex = new int[reqFieldNames.size()];
+        for (int i = 0; i < reqFieldNamesSortedIndex.length; i++)
+            reqFieldNamesSortedIndex[i] = i;
+        // sort the field name index
+        quickSort(reqFieldNamesSortedIndex, reqFieldNames, 0, reqFieldNamesSortedIndex.length - 1);
+    }
+
+    private void matchClosedPart(List<IVisitablePointable> fieldNames, List<IVisitablePointable> fieldTypeTags,
+            List<IVisitablePointable> fieldValues) throws AsterixException {
+        // sort-merge based match
+        quickSort(fieldNamesSortedIndex, fieldNames, 0, numInputFields - 1);
+        int fnStart = 0;
+        int reqFnStart = 0;
+        while (fnStart < numInputFields && reqFnStart < reqFieldNames.size()) {
+            int fnPos = fieldNamesSortedIndex[fnStart];
+            int reqFnPos = reqFieldNamesSortedIndex[reqFnStart];
+            int c = compare(fieldNames.get(fnPos), reqFieldNames.get(reqFnPos));
+            if (c == 0) {
+                IVisitablePointable fieldTypeTag = fieldTypeTags.get(fnPos);
+                IVisitablePointable reqFieldTypeTag = reqFieldTypeTags.get(reqFnPos);
+                if (fieldTypeTag.equals(reqFieldTypeTag) || (
+                // match the null type of optional field
+                        optionalFields[reqFnPos] && fieldTypeTag.equals(nullTypeTag))) {
+                    fieldPermutation[reqFnPos] = fnPos;
+                    openFields[fnPos] = false;
+                }
+                fnStart++;
+                reqFnStart++;
+            }
+            if (c > 0)
+                reqFnStart++;
+            if (c < 0)
+                fnStart++;
+        }
+
+        // check unmatched fields in the input type
+        for (int i = 0; i < openFields.length; i++) {
+            if (openFields[i] == true && !cachedReqType.isOpen()) {
+                //print the field name
+                IVisitablePointable fieldName = fieldNames.get(i);
+                ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                PrintStream ps = new PrintStream(bos);
+                APrintVisitor printVisitor = new APrintVisitor();
+                Pair<PrintStream, ATypeTag> visitorArg = new Pair<PrintStream, ATypeTag>(ps, ATypeTag.STRING);
+                fieldName.accept(printVisitor, visitorArg);
+
+                //print the colon
+                ps.print(":");
+
+                //print the field type
+                IVisitablePointable fieldType = fieldTypeTags.get(i);
+                ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(fieldType.getByteArray()[fieldType
+                        .getStartOffset()]);
+                ps.print(typeTag);
+
+                //collect the output message
+                byte[] output = bos.toByteArray();
+
+                //throw the exception
+                throw new IllegalStateException("type mismatch: including an extra field " + new String(output));
+            }
+        }
+
+        // check unmatched fields in the required type
+        for (int i = 0; i < fieldPermutation.length; i++) {
+            if (fieldPermutation[i] < 0) {
+                IAType t = cachedReqType.getFieldTypes()[i];
+                if (!(t.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t))) {
+                    // no matched field in the input for a required closed field
+                    throw new IllegalStateException("type mismatch: miss a required closed field "
+                            + cachedReqType.getFieldNames()[i] + ":" + t.getTypeName());
+                }
+            }
+        }
+    }
+
+    private void writeOutput(List<IVisitablePointable> fieldNames, List<IVisitablePointable> fieldTypeTags,
+            List<IVisitablePointable> fieldValues, DataOutput output, ACastVisitor visitor) throws IOException,
+            AsterixException {
+        // reset the states of the record builder
+        recBuilder.reset(cachedReqType);
+        recBuilder.init();
+
+        // write the closed part
+        for (int i = 0; i < fieldPermutation.length; i++) {
+            int pos = fieldPermutation[i];
+            IVisitablePointable field;
+            if (pos >= 0) {
+                field = fieldValues.get(pos);
+            } else {
+                field = nullReference;
+            }
+            IAType fType = cachedReqType.getFieldTypes()[i];
+            nestedVisitorArg.second = fType;
+
+            // recursively casting, the result of casting can always be thought
+            // as flat
+            if (optionalFields[i]) {
+                nestedVisitorArg.second = ((AUnionType) fType).getUnionList().get(
+                        NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+            }
+            field.accept(visitor, nestedVisitorArg);
+            recBuilder.addField(i, nestedVisitorArg.first);
+        }
+
+        // write the open part
+        for (int i = 0; i < numInputFields; i++) {
+            if (openFields[i]) {
+                IVisitablePointable name = fieldNames.get(i);
+                IVisitablePointable field = fieldValues.get(i);
+                IVisitablePointable fieldTypeTag = fieldTypeTags.get(i);
+
+                ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                        .deserialize(fieldTypeTag.getByteArray()[fieldTypeTag.getStartOffset()]);
+                nestedVisitorArg.second = DefaultOpenFieldType.getDefaultOpenFieldType(typeTag);
+                field.accept(visitor, nestedVisitorArg);
+                recBuilder.addField(name, nestedVisitorArg.first);
+            }
+        }
+        recBuilder.write(output, true);
+    }
+
+    private void quickSort(int[] index, List<IVisitablePointable> names, int start, int end) {
+        if (end <= start)
+            return;
+        int i = partition(index, names, start, end);
+        quickSort(index, names, start, i - 1);
+        quickSort(index, names, i + 1, end);
+    }
+
+    private int partition(int[] index, List<IVisitablePointable> names, int left, int right) {
+        int i = left - 1;
+        int j = right;
+        while (true) {
+            // grow from the left
+            while (compare(names.get(index[++i]), names.get(index[right])) < 0);
+            // lower from the right
+            while (compare(names.get(index[right]), names.get(index[--j])) < 0)
+                if (j == left)
+                    break;
+            if (i >= j)
+                break;
+            // swap i and j
+            swap(index, i, j);
+        }
+        // swap i and right
+        swap(index, i, right); // swap with partition element
+        return i;
+    }
+
+    private void swap(int[] array, int i, int j) {
+        int temp = array[i];
+        array[i] = array[j];
+        array[j] = temp;
+    }
+
+    private int compare(IValueReference a, IValueReference b) {
+        // start+1 and len-1 due to the type tag
+        return fieldNameComparator.compare(a.getByteArray(), a.getStartOffset() + 1, a.getLength() - 1,
+                b.getByteArray(), b.getStartOffset() + 1, b.getLength() - 1);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/AListPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/AListPrinter.java
new file mode 100644
index 0000000..283c916
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/AListPrinter.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is to print the content of a list. It is ONLY visible to
+ * APrintVisitor.
+ */
+class AListPrinter {
+    private static String LEFT_PAREN = "{{ ";
+    private static String RIGHT_PAREN = " }}";
+    private static String LEFT_PAREN_ORDERED = "[ ";
+    private static String RIGHT_PAREN_ORDERED = " ]";
+    private static String COMMA = ", ";
+
+    private final Pair<PrintStream, ATypeTag> itemVisitorArg = new Pair<PrintStream, ATypeTag>(null, null);
+    private String leftParen = LEFT_PAREN;
+    private String rightParen = RIGHT_PAREN;
+
+    public AListPrinter(boolean ordered) {
+        if (ordered) {
+            leftParen = LEFT_PAREN_ORDERED;
+            rightParen = RIGHT_PAREN_ORDERED;
+        }
+    }
+
+    public void printList(AListPointable listAccessor, PrintStream ps, APrintVisitor visitor) throws IOException,
+            AsterixException {
+        List<IVisitablePointable> itemTags = listAccessor.getItemTags();
+        List<IVisitablePointable> items = listAccessor.getItems();
+        itemVisitorArg.first = ps;
+
+        // print the beginning part
+        ps.print(leftParen);
+
+        // print item 0 to n-2
+        for (int i = 0; i < items.size() - 1; i++) {
+            printItem(visitor, itemTags, items, i);
+            // print the comma
+            ps.print(COMMA);
+        }
+
+        // print item n-1
+        if (items.size() > 0) {
+            printItem(visitor, itemTags, items, items.size() - 1);
+        }
+
+        // print the end part
+        ps.print(rightParen);
+    }
+
+    private void printItem(APrintVisitor visitor, List<IVisitablePointable> itemTags, List<IVisitablePointable> items,
+            int i) throws AsterixException {
+        IVisitablePointable itemTypeTag = itemTags.get(i);
+        IVisitablePointable item = items.get(i);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(itemTypeTag.getByteArray()[itemTypeTag
+                .getStartOffset()]);
+        itemVisitorArg.second = item.getLength() <= 1 ? ATypeTag.NULL : typeTag;
+        item.accept(visitor, itemVisitorArg);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/APrintVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/APrintVisitor.java
new file mode 100644
index 0000000..b78308d
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/APrintVisitor.java
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer;
+
+import java.io.PrintStream;
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ABooleanPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ACirclePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ADatePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ADateTimePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ADoublePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ADurationPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AFloatPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt16Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt32Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt64Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AInt8Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AIntervalPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ALinePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ANullPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.APoint3DPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.APointPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.APolygonPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ARectanglePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.AStringPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.ATimePrinter;
+import edu.uci.ics.asterix.om.pointables.AFlatValuePointable;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is a IVisitablePointableVisitor implementation which recursively
+ * visit a given record, list or flat value of a given type, and print it to a
+ * PrintStream in adm format.
+ */
+public class APrintVisitor implements IVisitablePointableVisitor<Void, Pair<PrintStream, ATypeTag>> {
+
+    private final Map<IVisitablePointable, ARecordPrinter> raccessorToPrinter = new HashMap<IVisitablePointable, ARecordPrinter>();
+    private final Map<IVisitablePointable, AListPrinter> laccessorToPrinter = new HashMap<IVisitablePointable, AListPrinter>();
+
+    @Override
+    public Void visit(AListPointable accessor, Pair<PrintStream, ATypeTag> arg) throws AsterixException {
+        AListPrinter printer = laccessorToPrinter.get(accessor);
+        if (printer == null) {
+            printer = new AListPrinter(accessor.ordered());
+            laccessorToPrinter.put(accessor, printer);
+        }
+        try {
+            printer.printList(accessor, arg.first, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(ARecordPointable accessor, Pair<PrintStream, ATypeTag> arg) throws AsterixException {
+        ARecordPrinter printer = raccessorToPrinter.get(accessor);
+        if (printer == null) {
+            printer = new ARecordPrinter();
+            raccessorToPrinter.put(accessor, printer);
+        }
+        try {
+            printer.printRecord(accessor, arg.first, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(AFlatValuePointable accessor, Pair<PrintStream, ATypeTag> arg) {
+        try {
+            byte[] b = accessor.getByteArray();
+            int s = accessor.getStartOffset();
+            int l = accessor.getLength();
+            PrintStream ps = arg.first;
+            ATypeTag typeTag = arg.second;
+            switch (typeTag) {
+                case INT8: {
+                    AInt8Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT16: {
+                    AInt16Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT32: {
+                    AInt32Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT64: {
+                    AInt64Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case NULL: {
+                    ANullPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case BOOLEAN: {
+                    ABooleanPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case FLOAT: {
+                    AFloatPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DOUBLE: {
+                    ADoublePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DATE: {
+                    ADatePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case TIME: {
+                    ATimePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DATETIME: {
+                    ADateTimePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DURATION: {
+                    ADurationPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POINT: {
+                    APointPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POINT3D: {
+                    APoint3DPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case LINE: {
+                    ALinePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POLYGON: {
+                    APolygonPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case CIRCLE: {
+                    ACirclePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case RECTANGLE: {
+                    ARectanglePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case STRING: {
+                    AStringPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INTERVAL: {
+                    AIntervalPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                default: {
+                    throw new NotImplementedException("No printer for type " + typeTag);
+                }
+            }
+            return null;
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/ARecordPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/ARecordPrinter.java
new file mode 100644
index 0000000..55f9447
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/ARecordPrinter.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is to print the content of a record. It is ONLY visible to
+ * APrintVisitor.
+ */
+class ARecordPrinter {
+    private static String LEFT_PAREN = "{ ";
+    private static String RIGHT_PAREN = " }";
+    private static String COMMA = ", ";
+    private static String COLON = ": ";
+
+    private final Pair<PrintStream, ATypeTag> nameVisitorArg = new Pair<PrintStream, ATypeTag>(null, ATypeTag.STRING);
+    private final Pair<PrintStream, ATypeTag> itemVisitorArg = new Pair<PrintStream, ATypeTag>(null, null);
+
+    public ARecordPrinter() {
+
+    }
+
+    public void printRecord(ARecordPointable recordAccessor, PrintStream ps, APrintVisitor visitor) throws IOException,
+            AsterixException {
+        List<IVisitablePointable> fieldNames = recordAccessor.getFieldNames();
+        List<IVisitablePointable> fieldTags = recordAccessor.getFieldTypeTags();
+        List<IVisitablePointable> fieldValues = recordAccessor.getFieldValues();
+
+        nameVisitorArg.first = ps;
+        itemVisitorArg.first = ps;
+
+        // print the beginning part
+        ps.print(LEFT_PAREN);
+
+        // print field 0 to n-2
+        for (int i = 0; i < fieldNames.size() - 1; i++) {
+            printField(ps, visitor, fieldNames, fieldTags, fieldValues, i);
+            // print the comma
+            ps.print(COMMA);
+        }
+
+        // print field n-1
+        if (fieldValues.size() > 0) {
+            printField(ps, visitor, fieldNames, fieldTags, fieldValues, fieldValues.size() - 1);
+        }
+
+        // print the end part
+        ps.print(RIGHT_PAREN);
+    }
+
+    private void printField(PrintStream ps, APrintVisitor visitor, List<IVisitablePointable> fieldNames,
+            List<IVisitablePointable> fieldTags, List<IVisitablePointable> fieldValues, int i) throws AsterixException {
+        IVisitablePointable itemTypeTag = fieldTags.get(i);
+        IVisitablePointable item = fieldValues.get(i);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(itemTypeTag.getByteArray()[itemTypeTag
+                .getStartOffset()]);
+        itemVisitorArg.second = item.getLength() <= 1 ? ATypeTag.NULL : typeTag;
+
+        // print field name
+        fieldNames.get(i).accept(visitor, nameVisitorArg);
+        ps.print(COLON);
+        // print field value
+        item.accept(visitor, itemVisitorArg);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/AListPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/AListPrinter.java
new file mode 100644
index 0000000..e0b3167
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/AListPrinter.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer.json;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is to print the content of a list. It is ONLY visible to
+ * APrintVisitor.
+ */
+class AListPrinter {
+    private static String BEGIN = "{ unorderedlist: [";
+    private static String BEGIN_ORDERED = "{ orderedlist: [";
+    private static String END = " ]}";
+    private static String COMMA = ", ";
+
+    private final Pair<PrintStream, ATypeTag> itemVisitorArg = new Pair<PrintStream, ATypeTag>(null, null);
+    private String begin = BEGIN;
+
+    public AListPrinter(boolean ordered) {
+        if (ordered) {
+            begin = BEGIN_ORDERED;
+        }
+    }
+
+    public void printList(AListPointable listAccessor, PrintStream ps, APrintVisitor visitor) throws IOException,
+            AsterixException {
+        List<IVisitablePointable> itemTags = listAccessor.getItemTags();
+        List<IVisitablePointable> items = listAccessor.getItems();
+        itemVisitorArg.first = ps;
+
+        // print the beginning part
+        ps.print(begin);
+
+        // print item 0 to n-2
+        for (int i = 0; i < items.size() - 1; i++) {
+            printItem(visitor, itemTags, items, i);
+            // print the comma
+            ps.print(COMMA);
+        }
+
+        // print item n-1
+        if (items.size() > 0) {
+            printItem(visitor, itemTags, items, items.size() - 1);
+        }
+
+        // print the end part
+        ps.print(END);
+    }
+
+    private void printItem(APrintVisitor visitor, List<IVisitablePointable> itemTags, List<IVisitablePointable> items,
+            int i) throws AsterixException {
+        IVisitablePointable itemTypeTag = itemTags.get(i);
+        IVisitablePointable item = items.get(i);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(itemTypeTag.getByteArray()[itemTypeTag
+                .getStartOffset()]);
+        itemVisitorArg.second = item.getLength() <= 1 ? ATypeTag.NULL : typeTag;
+        item.accept(visitor, itemVisitorArg);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/APrintVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/APrintVisitor.java
new file mode 100644
index 0000000..b2d5339
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/APrintVisitor.java
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer.json;
+
+import java.io.PrintStream;
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ABooleanPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ACirclePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADatePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADateTimePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADoublePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ADurationPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AFloatPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt16Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt32Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt64Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AInt8Printer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ALinePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ANullPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APoint3DPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APointPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.APolygonPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ARectanglePrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.AStringPrinter;
+import edu.uci.ics.asterix.dataflow.data.nontagged.printers.json.ATimePrinter;
+import edu.uci.ics.asterix.om.pointables.AFlatValuePointable;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.visitor.IVisitablePointableVisitor;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is a IVisitablePointableVisitor implementation which recursively
+ * visit a given record, list or flat value of a given type, and print it to a
+ * PrintStream in adm format.
+ */
+public class APrintVisitor implements IVisitablePointableVisitor<Void, Pair<PrintStream, ATypeTag>> {
+
+    private final Map<IVisitablePointable, ARecordPrinter> raccessorToPrinter = new HashMap<IVisitablePointable, ARecordPrinter>();
+    private final Map<IVisitablePointable, AListPrinter> laccessorToPrinter = new HashMap<IVisitablePointable, AListPrinter>();
+
+    @Override
+    public Void visit(AListPointable accessor, Pair<PrintStream, ATypeTag> arg) throws AsterixException {
+        AListPrinter printer = laccessorToPrinter.get(accessor);
+        if (printer == null) {
+            printer = new AListPrinter(accessor.ordered());
+            laccessorToPrinter.put(accessor, printer);
+        }
+        try {
+            printer.printList(accessor, arg.first, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(ARecordPointable accessor, Pair<PrintStream, ATypeTag> arg) throws AsterixException {
+        ARecordPrinter printer = raccessorToPrinter.get(accessor);
+        if (printer == null) {
+            printer = new ARecordPrinter();
+            raccessorToPrinter.put(accessor, printer);
+        }
+        try {
+            printer.printRecord(accessor, arg.first, this);
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return null;
+    }
+
+    @Override
+    public Void visit(AFlatValuePointable accessor, Pair<PrintStream, ATypeTag> arg) {
+        try {
+            byte[] b = accessor.getByteArray();
+            int s = accessor.getStartOffset();
+            int l = accessor.getLength();
+            PrintStream ps = arg.first;
+            ATypeTag typeTag = arg.second;
+            switch (typeTag) {
+                case INT8: {
+                    AInt8Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT16: {
+                    AInt16Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT32: {
+                    AInt32Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case INT64: {
+                    AInt64Printer.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case NULL: {
+                    ANullPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case BOOLEAN: {
+                    ABooleanPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case FLOAT: {
+                    AFloatPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DOUBLE: {
+                    ADoublePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DATE: {
+                    ADatePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case TIME: {
+                    ATimePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DATETIME: {
+                    ADateTimePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case DURATION: {
+                    ADurationPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POINT: {
+                    APointPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POINT3D: {
+                    APoint3DPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case LINE: {
+                    ALinePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case POLYGON: {
+                    APolygonPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case CIRCLE: {
+                    ACirclePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case RECTANGLE: {
+                    ARectanglePrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                case STRING: {
+                    AStringPrinter.INSTANCE.print(b, s, l, ps);
+                    break;
+                }
+                default: {
+                    throw new NotImplementedException("No printer for type " + typeTag);
+                }
+            }
+            return null;
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/ARecordPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/ARecordPrinter.java
new file mode 100644
index 0000000..e15f9c0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/printer/json/ARecordPrinter.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.printer.json;
+
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.List;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+
+/**
+ * This class is to print the content of a record. It is ONLY visible to
+ * APrintVisitor.
+ */
+class ARecordPrinter {
+    private static String LEFT_PAREN = "{ ";
+    private static String RIGHT_PAREN = " }";
+    private static String COMMA = ", ";
+    private static String COLON = ": ";
+
+    private final Pair<PrintStream, ATypeTag> nameVisitorArg = new Pair<PrintStream, ATypeTag>(null, ATypeTag.STRING);
+    private final Pair<PrintStream, ATypeTag> itemVisitorArg = new Pair<PrintStream, ATypeTag>(null, null);
+
+    public ARecordPrinter() {
+
+    }
+
+    public void printRecord(ARecordPointable recordAccessor, PrintStream ps, APrintVisitor visitor) throws IOException,
+            AsterixException {
+        List<IVisitablePointable> fieldNames = recordAccessor.getFieldNames();
+        List<IVisitablePointable> fieldTags = recordAccessor.getFieldTypeTags();
+        List<IVisitablePointable> fieldValues = recordAccessor.getFieldValues();
+
+        nameVisitorArg.first = ps;
+        itemVisitorArg.first = ps;
+
+        // print the beginning part
+        ps.print(LEFT_PAREN);
+
+        // print field 0 to n-2
+        for (int i = 0; i < fieldNames.size() - 1; i++) {
+            printField(ps, visitor, fieldNames, fieldTags, fieldValues, i);
+            // print the comma
+            ps.print(COMMA);
+        }
+
+        // print field n-1
+        if (fieldValues.size() > 0) {
+            printField(ps, visitor, fieldNames, fieldTags, fieldValues, fieldValues.size() - 1);
+        }
+
+        // print the end part
+        ps.print(RIGHT_PAREN);
+    }
+
+    private void printField(PrintStream ps, APrintVisitor visitor, List<IVisitablePointable> fieldNames,
+            List<IVisitablePointable> fieldTags, List<IVisitablePointable> fieldValues, int i) throws AsterixException {
+        IVisitablePointable itemTypeTag = fieldTags.get(i);
+        IVisitablePointable item = fieldValues.get(i);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(itemTypeTag.getByteArray()[itemTypeTag
+                .getStartOffset()]);
+        itemVisitorArg.second = item.getLength() <= 1 ? ATypeTag.NULL : typeTag;
+
+        // print field name
+        fieldNames.get(i).accept(visitor, nameVisitorArg);
+        ps.print(COLON);
+        // print field value
+        item.accept(visitor, itemVisitorArg);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/visitor/IVisitablePointableVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/visitor/IVisitablePointableVisitor.java
new file mode 100644
index 0000000..bcb4b34
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/visitor/IVisitablePointableVisitor.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.pointables.visitor;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.pointables.AFlatValuePointable;
+import edu.uci.ics.asterix.om.pointables.AListPointable;
+import edu.uci.ics.asterix.om.pointables.ARecordPointable;
+
+/**
+ * This interface is a visitor for all the three different IVisitablePointable
+ * (Note that right now we have three pointable implementations for type
+ * casting) implementations.
+ */
+public interface IVisitablePointableVisitor<R, T> {
+
+    public R visit(AListPointable accessor, T arg) throws AsterixException;
+
+    public R visit(ARecordPointable accessor, T arg) throws AsterixException;
+
+    public R visit(AFlatValuePointable accessor, T arg) throws AsterixException;
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
index 0e85c8a..e90da6b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/IResultTypeComputer.java
@@ -2,10 +2,10 @@
 
 
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public interface IResultTypeComputer {
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/TypeComputerUtilities.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/TypeComputerUtilities.java
new file mode 100644
index 0000000..2c7ff10
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/base/TypeComputerUtilities.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.typecomputer.base;
+
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+
+public class TypeComputerUtilities {
+
+    public static boolean setRequiredAndInputTypes(AbstractFunctionCallExpression expr, IAType requiredRecordType,
+            IAType inputRecordType) {
+        boolean changed = false;
+        Object opaqueParameter = expr.getOpaqueParameters();
+        if (opaqueParameter == null) {
+            Object[] opaqueParameters = new Object[2];
+            opaqueParameters[0] = requiredRecordType;
+            opaqueParameters[1] = inputRecordType;
+            expr.setOpaqueParameters(opaqueParameters);
+            changed = true;
+        }
+        return changed;
+    }
+
+    public static IAType getRequiredType(AbstractFunctionCallExpression expr) {
+        Object[] type = expr.getOpaqueParameters();
+        if (type != null) {
+            IAType returnType = (IAType) type[0];
+            return returnType;
+        } else
+            return null;
+    }
+
+    public static IAType getInputType(AbstractFunctionCallExpression expr) {
+        Object[] type = expr.getOpaqueParameters();
+        if (type != null) {
+            IAType returnType = (IAType) type[1];
+            return returnType;
+        } else
+            return null;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ABooleanTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ABooleanTypeComputer.java
index 7b9a8f3..c4b6e6d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ABooleanTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ABooleanTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ABooleanTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ACircleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ACircleTypeComputer.java
index a431f08..b07afab 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ACircleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ACircleTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ACircleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTimeTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTimeTypeComputer.java
new file mode 100644
index 0000000..c7a51da
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTimeTypeComputer.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class ADateTimeTypeComputer implements IResultTypeComputer {
+
+    public static final ADateTimeTypeComputer INSTANCE = new ADateTimeTypeComputer();
+
+    private ADateTimeTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        return BuiltinType.ADATETIME;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTypeComputer.java
index e22f885..7688342 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADateTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ADateTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
index 46d5af8..7986b27 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
@@ -4,10 +4,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ADoubleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt32TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt32TypeComputer.java
index 6c6361f..58fd319 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt32TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt32TypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AInt32TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt64TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt64TypeComputer.java
index 03e7b42..0eee333 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt64TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AInt64TypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AInt64TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ALineTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ALineTypeComputer.java
index 1c7bef3..5880ee2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ALineTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ALineTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ALineTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ANullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ANullTypeComputer.java
index 53aeb9d..e8e7312 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ANullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ANullTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ANullTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APoint3DTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APoint3DTypeComputer.java
index f0ab97c..3eb0a61 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APoint3DTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APoint3DTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class APoint3DTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APointTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APointTypeComputer.java
index f1c1278..bcda9b7 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APointTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APointTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class APointTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APolygonTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APolygonTypeComputer.java
index 55e5f91..1d95827 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APolygonTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/APolygonTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class APolygonTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
index a2d5651..289c0a6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
@@ -4,10 +4,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ARectangleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AStringTypeComputer.java
index 30e10d9..622394b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AStringTypeComputer.java
@@ -3,10 +3,10 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class AStringTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ATimeTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ATimeTypeComputer.java
new file mode 100644
index 0000000..55e1bc4
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ATimeTypeComputer.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class ATimeTypeComputer implements IResultTypeComputer {
+
+    public static final ATimeTypeComputer INSTANCE = new ATimeTypeComputer();
+
+    private ATimeTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        return BuiltinType.ATIME;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
new file mode 100644
index 0000000..3ada236
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
@@ -0,0 +1,43 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+abstract public class AbstractBinaryStringTypeComputer implements IResultTypeComputer {
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().size() < 2)
+            throw new AlgebricksException("Wrong Argument Number.");        
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
+        IAType t0, t1;
+        try {
+            t0 = (IAType) env.getType(arg0);
+            t1 = (IAType) env.getType(arg1);
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING) ||
+            (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING)) {
+            throw new AlgebricksException("Expects String Type.");
+        }      
+
+        return getResultType(t0, t1);
+    }    
+    
+    
+    public abstract IAType getResultType(IAType t0, IAType t1);
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
new file mode 100644
index 0000000..1c6cb4d
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
@@ -0,0 +1,50 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public abstract class AbstractQuadStringTypeComputer implements IResultTypeComputer {
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().size() < 4)
+            throw new AlgebricksException("Wrong Argument Number.");        
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
+        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();  
+        ILogicalExpression arg3 = fce.getArguments().get(3).getValue();                
+        IAType t0, t1, t2, t3;
+        try {
+            t0 = (IAType) env.getType(arg0);
+            t1 = (IAType) env.getType(arg1);
+            t2 = (IAType) env.getType(arg2);    
+            t3 = (IAType) env.getType(arg3);              
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING) || 
+            (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING) ||
+            (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING) ||
+            (t3.getTypeTag() != ATypeTag.NULL && t3.getTypeTag() != ATypeTag.STRING)) {
+            throw new NotImplementedException("Expects String Type.");
+        }
+
+        return getResultType(t0, t1, t2, t3);
+    }    
+    
+    
+    public abstract IAType getResultType(IAType t0, IAType t1, IAType t2, IAType t3);    
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
new file mode 100644
index 0000000..a8a2413
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
@@ -0,0 +1,45 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public abstract class AbstractTripleStringTypeComputer implements IResultTypeComputer {
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().size() < 3)
+            throw new AlgebricksException("Wrong Argument Number.");            
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
+        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();        
+        IAType t0, t1, t2;
+        try {
+            t0 = (IAType) env.getType(arg0);
+            t1 = (IAType) env.getType(arg1);
+            t2 = (IAType) env.getType(arg2);            
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        if ((t0.getTypeTag() != ATypeTag.NULL   && t0.getTypeTag() != ATypeTag.STRING) || (t1.getTypeTag() != ATypeTag.NULL &&
+            t1.getTypeTag() != ATypeTag.STRING) || (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING)) {
+            throw new AlgebricksException("Expects String Type.");
+        }
+
+        return getResultType(t0, t1, t2);
+    }    
+    
+    
+    public abstract IAType getResultType(IAType t0, IAType t1, IAType t2);
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
index 0c02d60..05c9ca1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
@@ -7,11 +7,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class BinaryBooleanOrNullFunctionTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java
new file mode 100644
index 0000000..fa2a4a5
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class BinaryStringBoolOrNullTypeComputer extends AbstractBinaryStringTypeComputer {
+    public static final BinaryStringBoolOrNullTypeComputer INSTANCE = new BinaryStringBoolOrNullTypeComputer();
+    private BinaryStringBoolOrNullTypeComputer() {}    
+    
+    @Override
+    public IAType getResultType(IAType t0, IAType t1) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1)) {
+            return AUnionType.createNullableType(BuiltinType.ABOOLEAN);
+        }        	
+        return BuiltinType.ABOOLEAN;
+    }    
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java
new file mode 100644
index 0000000..0b24ff9
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class BinaryStringStringOrNullTypeComputer extends AbstractBinaryStringTypeComputer {
+    
+    public static final BinaryStringStringOrNullTypeComputer INSTANCE = new BinaryStringStringOrNullTypeComputer();
+    private BinaryStringStringOrNullTypeComputer() {}
+
+    @Override
+    public IAType getResultType(IAType t0, IAType t1) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1)) {
+            return AUnionType.createNullableType(BuiltinType.ASTRING);
+        }      	
+        return BuiltinType.ASTRING;
+    }
+    
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/CastRecordResultTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/CastRecordResultTypeComputer.java
new file mode 100644
index 0000000..40560fa
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/CastRecordResultTypeComputer.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class CastRecordResultTypeComputer implements IResultTypeComputer {
+
+    public static final CastRecordResultTypeComputer INSTANCE = new CastRecordResultTypeComputer();
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        ScalarFunctionCallExpression funcExpr = (ScalarFunctionCallExpression) expression;
+        return TypeComputerUtilities.getRequiredType(funcExpr);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ClosedRecordConstructorResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ClosedRecordConstructorResultType.java
index 1462791..8ed2084 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ClosedRecordConstructorResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ClosedRecordConstructorResultType.java
@@ -1,14 +1,32 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.Iterator;
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
@@ -16,7 +34,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ClosedRecordConstructorResultType implements IResultTypeComputer {
 
@@ -26,6 +43,14 @@
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
+
+        /**
+         * if type has been top-down propagated, use the enforced type
+         */
+        ARecordType type = (ARecordType) TypeComputerUtilities.getRequiredType(f);
+        if (type != null)
+            return type;
+
         int n = f.getArguments().size() / 2;
         String[] fieldNames = new String[n];
         IAType[] fieldTypes = new IAType[n];
@@ -44,6 +69,10 @@
             fieldTypes[i] = (IAType) env.getType(e2);
             i++;
         }
-        return new ARecordType(null, fieldNames, fieldTypes, false);
+        try {
+            return new ARecordType(null, fieldNames, fieldTypes, false);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FieldAccessByIndexResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FieldAccessByIndexResultType.java
index 8e126f5..d4b11fa 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FieldAccessByIndexResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/FieldAccessByIndexResultType.java
@@ -8,13 +8,13 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class FieldAccessByIndexResultType implements IResultTypeComputer {
 
@@ -38,6 +38,9 @@
         }
         IAType type0 = (IAType) obj;
         ARecordType t0 = NonTaggedFieldAccessByNameResultType.getRecordTypeFromType(type0, expression);
+        if (t0 == null) {
+            return BuiltinType.ANY;
+        }
         ILogicalExpression arg1 = f.getArguments().get(1).getValue();
         if (arg1.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
             return BuiltinType.ANY;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/GetItemResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/GetItemResultType.java
index e56a432..c40ae6e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/GetItemResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/GetItemResultType.java
@@ -3,11 +3,11 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class GetItemResultType implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/InjectFailureTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/InjectFailureTypeComputer.java
index eaa0612..9f6d57a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/InjectFailureTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/InjectFailureTypeComputer.java
@@ -5,11 +5,11 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class InjectFailureTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedCollectionMemberResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedCollectionMemberResultType.java
index 752ccb0..2a39d83 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedCollectionMemberResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedCollectionMemberResultType.java
@@ -1,8 +1,5 @@
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -10,11 +7,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class NonTaggedCollectionMemberResultType implements IResultTypeComputer {
 
@@ -28,18 +25,13 @@
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
         IAType type = (IAType) env.getType(f.getArguments().get(0).getValue());
-        if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type))
+        if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type)) {
             type = ((AUnionType) type).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
-        if (type.getTypeTag() == ATypeTag.ANY)
-            return BuiltinType.ANY;
-        else {
-            if (((AbstractCollectionType) type).getItemType().getTypeTag() == ATypeTag.NULL)
-                return BuiltinType.ANULL;
-            List<IAType> unionList = new ArrayList<IAType>();
-            unionList.add(BuiltinType.ANULL);
-            unionList.add(((AbstractCollectionType) type).getItemType());
-            return new AUnionType(unionList, "CollectionMemberResult");
         }
+        if (type.getTypeTag() == ATypeTag.ANY) {
+            return BuiltinType.ANY;
+        }
+        return ((AbstractCollectionType) type).getItemType();
     }
 
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedFieldAccessByNameResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedFieldAccessByNameResultType.java
index 810d8d9..db9d932 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedFieldAccessByNameResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedFieldAccessByNameResultType.java
@@ -2,12 +2,14 @@
 
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
+import edu.uci.ics.asterix.om.pointables.base.DefaultOpenFieldType;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
@@ -15,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 
 public class NonTaggedFieldAccessByNameResultType implements IResultTypeComputer {
 
@@ -36,6 +36,9 @@
         }
         IAType type0 = (IAType) obj;
         ARecordType t0 = getRecordTypeFromType(type0, expression);
+        if (t0 == null) {
+            return BuiltinType.ANY;
+        }
 
         AbstractLogicalExpression arg1 = (AbstractLogicalExpression) f.getArguments().get(1).getValue();
         if (arg1.getExpressionTag() != LogicalExpressionTag.CONSTANT) {
@@ -58,7 +61,7 @@
                 return (ARecordType) type0;
             }
             case ANY: {
-                throw new NotImplementedException();
+                return DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE;
             }
             case UNION: {
                 AUnionType u = (AUnionType) type0;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedGetItemResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedGetItemResultType.java
index d8a90c6..eedee70 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedGetItemResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedGetItemResultType.java
@@ -10,11 +10,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class NonTaggedGetItemResultType implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedLocalAvgTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedLocalAvgTypeComputer.java
index 7efeb4d..ee52425 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedLocalAvgTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedLocalAvgTypeComputer.java
@@ -1,18 +1,33 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.ArrayList;
 import java.util.List;
 
-
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class NonTaggedLocalAvgTypeComputer implements IResultTypeComputer {
 
@@ -24,7 +39,11 @@
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         unionList.add(BuiltinType.ADOUBLE);
-        return new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+        try {
+            return new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                    new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
index 6a17af7..efde368 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
@@ -9,12 +9,12 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 
 public class NonTaggedNumericAddSubMulDivTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
new file mode 100644
index 0000000..fc65d43
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
@@ -0,0 +1,99 @@
+/*
+ * Numeric round half to even
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class NonTaggedNumericRoundHalfToEven2TypeComputer implements IResultTypeComputer {
+
+    public static final NonTaggedNumericRoundHalfToEven2TypeComputer INSTANCE =
+            new NonTaggedNumericRoundHalfToEven2TypeComputer();
+
+    private NonTaggedNumericRoundHalfToEven2TypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().size() < 2)
+        	throw new AlgebricksException("Argument number invalid.");
+        
+        ILogicalExpression arg1 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg2 = fce.getArguments().get(1).getValue();
+        
+        IAType t1 = (IAType) env.getType(arg1);
+        IAType t2 = (IAType) env.getType(arg2);
+        
+        List<IAType> unionList = new ArrayList<IAType>();
+        unionList.add(BuiltinType.ANULL);        
+
+        ATypeTag tag1, tag2;
+        if (t1.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t1))
+            tag1 = ((AUnionType) t1).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag1 = t1.getTypeTag();
+
+        if (t2.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t2))
+            tag2 = ((AUnionType) t2).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag2 = t2.getTypeTag();
+        
+        switch(tag2) {
+	        case INT8:
+	        case INT16:
+	        case INT32:
+	        case INT64:
+	            break;
+	        default:
+	            throw new AlgebricksException("Argument $precision cannot be type " + t2.getTypeName());
+        }        
+        
+        switch (tag1) {
+            case INT8:
+                unionList.add(BuiltinType.AINT8);
+                break;                
+            case INT16:
+                unionList.add(BuiltinType.AINT16);
+                break;                 
+            case INT32:
+                unionList.add(BuiltinType.AINT32);
+                break;                 
+            case INT64:
+                unionList.add(BuiltinType.AINT64);
+                break;                 
+            case FLOAT:
+                unionList.add(BuiltinType.AFLOAT);
+                break;                 
+            case DOUBLE:
+                unionList.add(BuiltinType.ADOUBLE);
+                break;
+            case NULL:
+                return BuiltinType.ANULL;
+            default: {
+                throw new NotImplementedException("Arithmetic operations are not implemented for " + t1.getTypeName());
+            }
+        }
+
+        return new AUnionType(unionList, "NumericFuncionsResult");
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
new file mode 100644
index 0000000..bff0c0b
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
@@ -0,0 +1,80 @@
+/*
+ * Numeric Unary Functions like abs
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class NonTaggedNumericUnaryFunctionTypeComputer implements IResultTypeComputer {
+
+    private static final String errMsg = "Arithmetic operations are not implemented for ";
+    public static final NonTaggedNumericUnaryFunctionTypeComputer INSTANCE =
+            new NonTaggedNumericUnaryFunctionTypeComputer();
+
+    private NonTaggedNumericUnaryFunctionTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().isEmpty())
+            throw new AlgebricksException("Wrong Argument Number.");
+        
+        ILogicalExpression arg1 = fce.getArguments().get(0).getValue();
+
+        IAType t = (IAType) env.getType(arg1);
+        ATypeTag tag = t.getTypeTag();
+
+        if (tag == ATypeTag.UNION
+                && NonTaggedFormatUtil.isOptionalField((AUnionType) env.getType(arg1))) {
+            return (IAType) env.getType(arg1);
+        }
+        
+        List<IAType> unionList = new ArrayList<IAType>();
+        unionList.add(BuiltinType.ANULL);
+        switch (tag) {
+            case INT8:
+                unionList.add(BuiltinType.AINT8);
+                break;                
+            case INT16:
+                unionList.add(BuiltinType.AINT16);
+                break;                 
+            case INT32:
+                unionList.add(BuiltinType.AINT32);
+                break;                 
+            case INT64:
+                unionList.add(BuiltinType.AINT64);
+                break;                 
+            case FLOAT:
+                unionList.add(BuiltinType.AFLOAT);
+                break;                 
+            case DOUBLE:
+                unionList.add(BuiltinType.ADOUBLE);
+                break;
+            case NULL:
+                return BuiltinType.ANULL;
+            default: {
+                throw new NotImplementedException(errMsg + t.getTypeName());
+            }
+        }
+
+        return new AUnionType(unionList, "NumericUnaryFuncionsResult");
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSumTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSumTypeComputer.java
index 888b9db..03de8a9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSumTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSumTypeComputer.java
@@ -9,12 +9,12 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 
 public class NonTaggedSumTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSwitchCaseComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSwitchCaseComputer.java
index bc47976..dbfcca0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSwitchCaseComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedSwitchCaseComputer.java
@@ -5,11 +5,11 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class NonTaggedSwitchCaseComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedUnaryMinusTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedUnaryMinusTypeComputer.java
index d718ccd..02837ce 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedUnaryMinusTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedUnaryMinusTypeComputer.java
@@ -9,11 +9,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class NonTaggedUnaryMinusTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NotNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NotNullTypeComputer.java
new file mode 100644
index 0000000..a9881c2
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NotNullTypeComputer.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+/**
+ * This class is the type computer for not-null function.
+ * If the input type is not a union, we just return it.
+ * If the input type is a union,
+ * case 1: we return a new union without null if the new union still has more than one types;
+ * case 2: we return the non-null item type in the original union if there are only null and it in the original union.
+ */
+public class NotNullTypeComputer implements IResultTypeComputer {
+
+    public static final NotNullTypeComputer INSTANCE = new NotNullTypeComputer();
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
+        IAType type = (IAType) env.getType(f.getArguments().get(0).getValue());
+        if (type.getTypeTag() != ATypeTag.UNION) {
+            // directly return the input type if it is not a union
+            return type;
+        }
+
+        AUnionType unionType = (AUnionType) type;
+        List<IAType> items = new ArrayList<IAType>();
+        // copy the item types
+        items.addAll(unionType.getUnionList());
+
+        // remove null
+        for (int i = items.size() - 1; i >= 0; i--) {
+            IAType itemType = items.get(i);
+            if (itemType.getTypeTag() == ATypeTag.NULL) {
+                items.remove(i);
+            }
+        }
+        if (items.size() == 1) {
+            //only one type is left
+            return items.get(0);
+        } else {
+            //more than two types are left
+            return new AUnionType(items, unionType.getTypeName());
+        }
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
index a028f48..cb568c6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
@@ -4,12 +4,12 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
 
 public class NumericAddSubMulTypeDescriptor implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OpenRecordConstructorResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OpenRecordConstructorResultType.java
index f6eaaa4..0c6fc55 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OpenRecordConstructorResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OpenRecordConstructorResultType.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.ArrayList;
@@ -6,19 +21,21 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OpenRecordConstructorResultType implements IResultTypeComputer {
 
@@ -28,6 +45,14 @@
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
+
+        /**
+         * if type has been top-down propagated, use the enforced type
+         */
+        ARecordType type = (ARecordType) TypeComputerUtilities.getRequiredType(f);
+        if (type != null)
+            return type;
+
         int n = 0;
         Iterator<Mutable<ILogicalExpression>> argIter = f.getArguments().iterator();
         List<String> namesList = new ArrayList<String>();
@@ -48,6 +73,10 @@
         IAType[] fieldTypes = new IAType[n];
         fieldNames = namesList.toArray(fieldNames);
         fieldTypes = typesList.toArray(fieldTypes);
-        return new ARecordType(null, fieldNames, fieldTypes, true);
+        try {
+            return new ARecordType(null, fieldNames, fieldTypes, true);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalABooleanTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalABooleanTypeComputer.java
new file mode 100644
index 0000000..abeea2a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalABooleanTypeComputer.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class OptionalABooleanTypeComputer implements IResultTypeComputer {
+
+    public static final OptionalABooleanTypeComputer INSTANCE = new OptionalABooleanTypeComputer();
+
+    private OptionalABooleanTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        List<IAType> unionList = new ArrayList<IAType>();
+        unionList.add(BuiltinType.ANULL);
+        unionList.add(BuiltinType.ABOOLEAN);
+        return new AUnionType(unionList, "OptionalBoolean");
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalACircleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalACircleTypeComputer.java
index 8a4c480..a5d4508 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalACircleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalACircleTypeComputer.java
@@ -3,15 +3,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalACircleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTimeTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTimeTypeComputer.java
index ca4625a..8368116 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTimeTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTimeTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalADateTimeTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTypeComputer.java
index c09b56c..16158c5 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADateTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalADateTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADoubleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADoubleTypeComputer.java
index 6a6ddde..cf2f9ec 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADoubleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADoubleTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalADoubleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADurationTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADurationTypeComputer.java
index 2af929e..8f271b0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADurationTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalADurationTypeComputer.java
@@ -3,15 +3,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalADurationTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt16TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt16TypeComputer.java
index f5e4066..3e4084a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt16TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt16TypeComputer.java
@@ -3,15 +3,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAInt16TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt32TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt32TypeComputer.java
index b8cd8c7..d3f7895 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt32TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt32TypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAInt32TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt64TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt64TypeComputer.java
index 91a42be..5b35d83 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt64TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt64TypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAInt64TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt8TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt8TypeComputer.java
index e718403..230c3b0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt8TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAInt8TypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAInt8TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAIntervalTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAIntervalTypeComputer.java
new file mode 100644
index 0000000..bb9f993
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAIntervalTypeComputer.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class OptionalAIntervalTypeComputer implements IResultTypeComputer {
+
+    public static final OptionalAIntervalTypeComputer INSTANCE = new OptionalAIntervalTypeComputer();
+
+    private OptionalAIntervalTypeComputer() {
+
+    }
+
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        List<IAType> unionList = new ArrayList<IAType>();
+        unionList.add(BuiltinType.ANULL);
+        unionList.add(BuiltinType.AINTERVAL);
+        return new AUnionType(unionList, "OptionalInterval");
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalALineTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalALineTypeComputer.java
index 9b73ce1..52b733a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalALineTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalALineTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalALineTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPoint3DTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPoint3DTypeComputer.java
index a5d397c..43f721b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPoint3DTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPoint3DTypeComputer.java
@@ -3,15 +3,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAPoint3DTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPointTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPointTypeComputer.java
index d00db98..bca285c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPointTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPointTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAPointTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPolygonTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPolygonTypeComputer.java
index fbed21e..a12ce37 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPolygonTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAPolygonTypeComputer.java
@@ -7,11 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAPolygonTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalARectangleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalARectangleTypeComputer.java
index 4b380f8..02c29ed 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalARectangleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalARectangleTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalARectangleTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAStringTypeComputer.java
index 9b0b4bf..878237c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalAStringTypeComputer.java
@@ -7,10 +7,10 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalAStringTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalATimeTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalATimeTypeComputer.java
index d63f521..1448622 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalATimeTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OptionalATimeTypeComputer.java
@@ -3,15 +3,14 @@
 import java.util.ArrayList;
 import java.util.List;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OptionalATimeTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListConstructorResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListConstructorResultType.java
index ef569a7..01e43d3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListConstructorResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListConstructorResultType.java
@@ -1,19 +1,35 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.ArrayList;
 
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OrderedListConstructorResultType implements IResultTypeComputer {
 
@@ -23,25 +39,28 @@
     public AOrderedListType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
-        int n = f.getArguments().size();
-        if (n == 0) {
-            return new AOrderedListType(BuiltinType.ANY, null);
-        } else {
-            ArrayList<IAType> types = new ArrayList<IAType>();
-            for (int k = 0; k < f.getArguments().size(); k++) {
-                IAType type = (IAType) env.getType(f.getArguments().get(k).getValue());
-                if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type))
-                    type = ((AUnionType) type).getUnionList()
-                            .get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
-                if (types.indexOf(type) < 0) {
-                    types.add(type);
-                }
-            }
-            if (types.size() == 1) {
-                return new AOrderedListType(types.get(0), null);
-            } else {
-                throw new AlgebricksException("You can not construct a heterogenous list.");
+
+        /**
+         * if type has been top-down propagated, use the enforced type
+         */
+        AOrderedListType reqType = (AOrderedListType) TypeComputerUtilities.getRequiredType(f);
+        if (reqType != null)
+            return reqType;
+
+        ArrayList<IAType> types = new ArrayList<IAType>();
+        for (int k = 0; k < f.getArguments().size(); k++) {
+            IAType type = (IAType) env.getType(f.getArguments().get(k).getValue());
+            if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type))
+                type = ((AUnionType) type).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+            if (types.indexOf(type) < 0) {
+                types.add(type);
             }
         }
+        if (types.size() == 1) {
+            return new AOrderedListType(types.get(0), null);
+        } else {
+            return new AOrderedListType(BuiltinType.ANY, null);
+        }
+
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAInt32TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAInt32TypeComputer.java
index 31be073..93cac7c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAInt32TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAInt32TypeComputer.java
@@ -4,10 +4,10 @@
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OrderedListOfAInt32TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java
new file mode 100644
index 0000000..f5ffeef
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java
@@ -0,0 +1,24 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class OrderedListOfAPointTypeComputer implements IResultTypeComputer {
+
+    public static final OrderedListOfAPointTypeComputer INSTANCE = new OrderedListOfAPointTypeComputer();
+
+    private OrderedListOfAPointTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        return new AOrderedListType(BuiltinType.APOINT, null);
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAStringTypeComputer.java
index 329917c..05bb751 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAStringTypeComputer.java
@@ -4,10 +4,10 @@
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OrderedListOfAStringTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAnyTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAnyTypeComputer.java
index 7d24886..2bddfc4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAnyTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAnyTypeComputer.java
@@ -4,10 +4,10 @@
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class OrderedListOfAnyTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java
new file mode 100644
index 0000000..876df7a
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class QuadStringStringOrNullTypeComputer  extends AbstractQuadStringTypeComputer {
+    public static final QuadStringStringOrNullTypeComputer INSTANCE = new QuadStringStringOrNullTypeComputer();
+    private QuadStringStringOrNullTypeComputer() {}
+
+    @Override
+    public IAType getResultType(IAType t0, IAType t1, IAType t2, IAType t3) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || 
+        	TypeHelper.canBeNull(t2) || TypeHelper.canBeNull(t3)) {
+            return AUnionType.createNullableType(BuiltinType.ASTRING);
+        }      	
+        return BuiltinType.ASTRING;
+    }
+    
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/RecordConstructorResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/RecordConstructorResultType.java
index 51e59f8..1f072f0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/RecordConstructorResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/RecordConstructorResultType.java
@@ -1,21 +1,38 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.Iterator;
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class RecordConstructorResultType implements IResultTypeComputer {
 
@@ -32,6 +49,9 @@
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
+        IAType reqType = TypeComputerUtilities.getRequiredType(f);
+        if (reqType != null)
+            return reqType;
         int n = f.getArguments().size() / 2;
         String[] fieldNames = new String[n];
         IAType[] fieldTypes = new IAType[n];
@@ -54,6 +74,10 @@
             }
             i++;
         }
-        return new ARecordType(null, fieldNames, fieldTypes, isOpen);
+        try {
+            return new ARecordType(null, fieldNames, fieldTypes, isOpen);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ScalarVersionOfAggregateResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ScalarVersionOfAggregateResultType.java
index a6943a0..c8ba938 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ScalarVersionOfAggregateResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ScalarVersionOfAggregateResultType.java
@@ -7,11 +7,11 @@
 import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class ScalarVersionOfAggregateResultType implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
new file mode 100644
index 0000000..89fae39
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
@@ -0,0 +1,63 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+
+public class Substring2TypeComputer implements IResultTypeComputer {
+    public static final Substring2TypeComputer INSTANCE = new Substring2TypeComputer();
+    
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().size() < 2)
+            throw new AlgebricksException("Wrong Argument Number.");            
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();       
+        IAType t0, t1;
+        try {
+            t0 = (IAType) env.getType(arg0);
+            t1 = (IAType) env.getType(arg1);                  
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        
+        ATypeTag tag0, tag1;
+        if (t0.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t0))
+            tag0 = ((AUnionType) t0).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag0 = t0.getTypeTag();
+        
+        if (t1.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t1))
+            tag1 = ((AUnionType) t1).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag1 = t1.getTypeTag();        
+        
+        if(tag0 != ATypeTag.NULL && tag0 != ATypeTag.STRING) {
+            throw new AlgebricksException("First argument should be String Type.");
+        }
+        
+        if(tag1 != ATypeTag.NULL && 
+           tag1 != ATypeTag.INT8 && 
+           tag1 != ATypeTag.INT16 && 
+           tag1 != ATypeTag.INT32 && 
+           tag1 != ATypeTag.INT64) {
+            throw new AlgebricksException("Second argument should be integer Type.");
+        }
+
+        return BuiltinType.ASTRING;
+    }   
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java
new file mode 100644
index 0000000..ebf34aa
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java
@@ -0,0 +1,71 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class SubstringTypeComputer implements IResultTypeComputer {
+    public static final SubstringTypeComputer INSTANCE = new SubstringTypeComputer();
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if (fce.getArguments().size() < 3)
+            throw new AlgebricksException("Wrong Argument Number.");
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
+        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();
+        IAType t0, t1, t2;
+        try {
+            t0 = (IAType) env.getType(arg0);
+            t1 = (IAType) env.getType(arg1);
+            t2 = (IAType) env.getType(arg2);
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+
+        ATypeTag tag0, tag1, tag2;
+        if (t0.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t0))
+            tag0 = ((AUnionType) t0).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag0 = t0.getTypeTag();
+
+        if (t1.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t1))
+            tag1 = ((AUnionType) t1).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag1 = t1.getTypeTag();
+
+        if (t2.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t2))
+            tag2 = ((AUnionType) t2).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
+                    .getTypeTag();
+        else
+            tag2 = t2.getTypeTag();
+
+        if (tag0 != ATypeTag.NULL && tag0 != ATypeTag.STRING) {
+            throw new AlgebricksException("First argument should be String Type.");
+        }
+
+        if (tag1 != ATypeTag.NULL && tag1 != ATypeTag.INT8 && tag1 != ATypeTag.INT16 && tag1 != ATypeTag.INT32
+                && tag1 != ATypeTag.INT64) {
+            throw new AlgebricksException("Second argument should be integer Type.");
+        }
+
+        if (tag2 != ATypeTag.NULL && tag2 != ATypeTag.INT8 && tag2 != ATypeTag.INT16 && tag2 != ATypeTag.INT32
+                && tag2 != ATypeTag.INT64) {
+            throw new AlgebricksException("Third argument should be integer Type.");
+        }
+
+        return BuiltinType.ASTRING;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java
new file mode 100644
index 0000000..0bac1df
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class TripleStringBoolOrNullTypeComputer  extends AbstractTripleStringTypeComputer {
+    public static final TripleStringBoolOrNullTypeComputer INSTANCE = new TripleStringBoolOrNullTypeComputer();
+    private TripleStringBoolOrNullTypeComputer() {}    
+    @Override
+    public IAType getResultType(IAType t0, IAType t1, IAType t2) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || TypeHelper.canBeNull(t2)) {
+            return AUnionType.createNullableType(BuiltinType.ABOOLEAN);
+        }    	
+        return BuiltinType.ABOOLEAN;
+    }
+    
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java
new file mode 100644
index 0000000..10154b0
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class TripleStringStringOrNullTypeComputer  extends AbstractTripleStringTypeComputer {
+    public static final TripleStringStringOrNullTypeComputer INSTANCE = new TripleStringStringOrNullTypeComputer();
+    private TripleStringStringOrNullTypeComputer() {}
+
+    @Override
+    public IAType getResultType(IAType t0, IAType t1, IAType t2) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || TypeHelper.canBeNull(t2)) {
+            return AUnionType.createNullableType(BuiltinType.ASTRING);
+        }      	
+        return BuiltinType.ASTRING;
+    } 
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryBooleanOrNullFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryBooleanOrNullFunctionTypeComputer.java
index a5f8302..b26214d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryBooleanOrNullFunctionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryBooleanOrNullFunctionTypeComputer.java
@@ -9,11 +9,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class UnaryBooleanOrNullFunctionTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
new file mode 100644
index 0000000..2d3018d
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
@@ -0,0 +1,58 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class UnaryStringInt32OrNullTypeComputer implements IResultTypeComputer  {   
+    
+    public static final UnaryStringInt32OrNullTypeComputer INSTANCE = new UnaryStringInt32OrNullTypeComputer();
+    private UnaryStringInt32OrNullTypeComputer() {}
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().isEmpty())
+            throw new AlgebricksException("Wrong Argument Number.");        
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        IAType t0;
+        try {
+            t0 = (IAType) env.getType(arg0);
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        if (t0.getTypeTag() != ATypeTag.NULL &&
+            t0.getTypeTag() != ATypeTag.STRING ) {
+            throw new NotImplementedException("Expects String Type.");
+        }     
+        
+        List<IAType> unionList = new ArrayList<IAType>();
+        unionList.add(BuiltinType.ANULL);
+        if(t0.getTypeTag() == ATypeTag.NULL) {
+            return BuiltinType.ANULL;
+        }
+        
+        if(t0.getTypeTag() == ATypeTag.STRING) {
+            unionList.add(BuiltinType.AINT32);
+        }        
+        
+        return new AUnionType(unionList, "String-length-Result");
+    }      
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
new file mode 100644
index 0000000..981bb7c
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
@@ -0,0 +1,51 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class UnaryStringOrNullTypeComputer implements IResultTypeComputer  {   
+    
+    public static final UnaryStringOrNullTypeComputer INSTANCE = new UnaryStringOrNullTypeComputer();
+    private UnaryStringOrNullTypeComputer() {}
+    
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
+        if(fce.getArguments().isEmpty())
+            throw new AlgebricksException("Wrong Argument Number.");        
+        ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
+        IAType t0;
+        try {
+            t0 = (IAType) env.getType(arg0);
+        } catch (AlgebricksException e) {
+            throw new AlgebricksException(e);
+        }
+        
+        if (TypeHelper.canBeNull(t0)) {
+            return AUnionType.createNullableType(BuiltinType.ASTRING);
+        }            
+        
+        if (t0.getTypeTag() == ATypeTag.NULL)
+        	return BuiltinType.ANULL;
+        
+        if(t0.getTypeTag() == ATypeTag.STRING) 
+        	return BuiltinType.ASTRING;
+        
+        throw new AlgebricksException("Expects String Type.");        
+    }      
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnorderedListConstructorResultType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnorderedListConstructorResultType.java
index 9ffb77f..2fa36f2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnorderedListConstructorResultType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnorderedListConstructorResultType.java
@@ -1,19 +1,35 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
 import java.util.ArrayList;
 
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class UnorderedListConstructorResultType implements IResultTypeComputer {
 
@@ -23,25 +39,28 @@
     public AUnorderedListType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression f = (AbstractFunctionCallExpression) expression;
-        int n = f.getArguments().size();
-        if (n == 0) {
-            return new AUnorderedListType(BuiltinType.ANY, null);
-        } else {
-            ArrayList<IAType> types = new ArrayList<IAType>();
-            for (int k = 0; k < f.getArguments().size(); k++) {
-                IAType type = (IAType) env.getType(f.getArguments().get(k).getValue());
-                if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type))
-                    type = ((AUnionType) type).getUnionList()
-                            .get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
-                if (types.indexOf(type) < 0) {
-                    types.add(type);
-                }
-            }
-            if (types.size() == 1) {
-                return new AUnorderedListType(types.get(0), null);
-            } else {
-                throw new AlgebricksException("You can not construct a heterogenous list.");
+
+        /**
+         * if type has been top-down propagated, use the enforced type
+         */
+        AUnorderedListType reqType = (AUnorderedListType) TypeComputerUtilities.getRequiredType(f);
+        if (reqType != null)
+            return reqType;
+
+        ArrayList<IAType> types = new ArrayList<IAType>();
+        for (int k = 0; k < f.getArguments().size(); k++) {
+            IAType type = (IAType) env.getType(f.getArguments().get(k).getValue());
+            if (type.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) type))
+                type = ((AUnionType) type).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST);
+            if (types.indexOf(type) < 0) {
+                types.add(type);
             }
         }
+        if (types.size() == 1) {
+            return new AUnorderedListType(types.get(0), null);
+        } else {
+            return new AUnorderedListType(BuiltinType.ANY, null);
+        }
+
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
index 59423e2..5620e4e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
@@ -1,5 +1,8 @@
 package edu.uci.ics.asterix.om.types;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.om.base.IAObject;
 
 public class AOrderedListType extends AbstractCollectionType {
@@ -52,4 +55,11 @@
     public int hash() {
         return hashCode();
     }
+
+    @Override
+    public JSONObject toJSON() throws JSONException{
+        JSONObject type = new JSONObject();
+        type.put("type", itemType);
+        return type;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
index 2953966..dc0afcd 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
@@ -1,13 +1,42 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.om.types;
 
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.annotations.IRecordTypeAnnotation;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryHashFunctionFactory;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
 
 public class ARecordType extends AbstractComplexType {
 
@@ -15,13 +44,111 @@
     private String[] fieldNames;
     private IAType[] fieldTypes;
     private boolean isOpen;
-    private transient List<IRecordTypeAnnotation> annotations = new ArrayList<IRecordTypeAnnotation>();
+    private final List<IRecordTypeAnnotation> annotations = new ArrayList<IRecordTypeAnnotation>();
 
-    public ARecordType(String typeName, String[] fieldNames, IAType[] fieldTypes, boolean isOpen) {
+    private transient IBinaryHashFunction fieldNameHashFunction;
+    private transient IBinaryComparator fieldNameComparator;
+    private final byte serializedFieldNames[];
+    private final int serializedFieldNameOffsets[];
+    private final long hashCodeIndexPairs[];
+
+    /**
+     * @param typeName
+     *            the name of the type
+     * @param fieldNames
+     *            the names of the closed fields
+     * @param fieldTypes
+     *            the types of the closed fields
+     * @param isOpen
+     *            whether the record is open
+     * @throws AsterixException
+     *             if there are duplicate field names or if there is an error serializing the field names
+     */
+    public ARecordType(String typeName, String[] fieldNames, IAType[] fieldTypes, boolean isOpen)
+            throws AsterixException {
         super(typeName);
         this.fieldNames = fieldNames;
         this.fieldTypes = fieldTypes;
         this.isOpen = isOpen;
+
+        fieldNameComparator = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY)
+                .createBinaryComparator();
+        fieldNameHashFunction = new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY)
+                .createBinaryHashFunction();
+        ByteArrayAccessibleOutputStream baaos = new ByteArrayAccessibleOutputStream();
+        DataOutputStream dos = new DataOutputStream(baaos);
+        serializedFieldNameOffsets = new int[fieldNames.length];
+        hashCodeIndexPairs = new long[fieldNames.length];
+
+        int length = 0;
+        for (int i = 0; i < fieldNames.length; i++) {
+            serializedFieldNameOffsets[i] = baaos.size();
+            try {
+                dos.writeUTF(fieldNames[i]);
+            } catch (IOException e) {
+                throw new AsterixException(e);
+            }
+            length = baaos.size() - serializedFieldNameOffsets[i];
+            hashCodeIndexPairs[i] = fieldNameHashFunction.hash(baaos.getByteArray(), serializedFieldNameOffsets[i],
+                    length);
+            hashCodeIndexPairs[i] = hashCodeIndexPairs[i] << 32;
+            hashCodeIndexPairs[i] = hashCodeIndexPairs[i] | i;
+        }
+        serializedFieldNames = baaos.getByteArray();
+
+        Arrays.sort(hashCodeIndexPairs);
+        int j;
+        for (int i = 0; i < fieldNames.length; i++) {
+            j = findFieldPosition(serializedFieldNames, serializedFieldNameOffsets[i],
+                    UTF8StringPointable.getStringLength(serializedFieldNames, serializedFieldNameOffsets[i]));
+            if (j != i) {
+                throw new AsterixException("Closed fields " + j + " and " + i + " have the same field name \""
+                        + fieldNames[i] + "\"");
+            }
+        }
+    }
+
+    private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
+        ois.defaultReadObject();
+        fieldNameComparator = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY)
+                .createBinaryComparator();
+        fieldNameHashFunction = new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY)
+                .createBinaryHashFunction();
+    }
+
+    /**
+     * Returns the position of the field in the closed schema or -1 if the field does not exist.
+     * 
+     * @param bytes
+     *            the serialized bytes of the field name
+     * @param start
+     *            the starting offset of the field name in bytes
+     * @param length
+     *            the length of the field name in bytes
+     * @return the position of the field in the closed schema or -1 if the field does not exist.
+     */
+    public int findFieldPosition(byte[] bytes, int start, int length) {
+        if (hashCodeIndexPairs.length == 0) {
+            return -1;
+        }
+
+        int fIndex;
+        int probeFieldHash = fieldNameHashFunction.hash(bytes, start, length);
+        int i = Arrays.binarySearch(hashCodeIndexPairs, ((long) probeFieldHash) << 32);
+        i = (i < 0) ? (i = -1 * (i + 1)) : i;
+
+        while (i < hashCodeIndexPairs.length && (int) (hashCodeIndexPairs[i] >>> 32) == probeFieldHash) {
+            fIndex = (int) hashCodeIndexPairs[i];
+            int cFieldLength = UTF8StringPointable.getStringLength(serializedFieldNames,
+                    serializedFieldNameOffsets[fIndex]);
+            if (fieldNameComparator.compare(serializedFieldNames, serializedFieldNameOffsets[fIndex], cFieldLength,
+                    bytes, start, length) == 0) {
+                return fIndex;
+            }
+            i++;
+        }
+
+        return -1;
     }
 
     public final String[] getFieldNames() {
@@ -67,13 +194,48 @@
         return isOpen;
     }
 
-    public int findFieldPosition(String fldName) {
-        for (int i = 0; i < fieldNames.length; i++) {
-            if (fieldNames[i].equals(fldName)) {
-                return i;
-            }
+    /**
+     * Returns the position of the field in the closed schema or -1 if the field does not exist.
+     * 
+     * @param fieldName
+     *            the name of the field whose position is sought
+     * @return the position of the field in the closed schema or -1 if the field does not exist.
+     */
+    public int findFieldPosition(String fieldName) throws IOException {
+        ByteArrayAccessibleOutputStream baaos = new ByteArrayAccessibleOutputStream();
+        DataOutputStream dos = new DataOutputStream(baaos);
+        UTF8StringSerializerDeserializer.INSTANCE.serialize(fieldName, dos);
+        return findFieldPosition(baaos.getByteArray(), 0, baaos.getByteArray().length);
+    }
+
+    /**
+     * Returns the field type of the field name if it exists, otherwise null.
+     * 
+     * @param fieldName
+     *            the fieldName whose type is sought
+     * @return the field type of the field name if it exists, otherwise null
+     * @throws IOException
+     *             if an error occurs while serializing the field name
+     */
+    public IAType getFieldType(String fieldName) throws IOException {
+        int fieldPos = findFieldPosition(fieldName);
+        if (fieldPos < 0 || fieldPos >= fieldTypes.length) {
+            return null;
         }
-        return -1;
+        return fieldTypes[fieldPos];
+    }
+
+    /**
+     * Returns true or false indicating whether or not a field is closed.
+     * 
+     * @param fieldName
+     *            the name of the field to check
+     * @return true if fieldName is a closed field, otherwise false
+     * @throws IOException
+     *             if an error occurs while serializing fieldName
+     */
+    public boolean isClosedField(String fieldName) throws IOException {
+        return findFieldPosition(fieldName) != -1;
     }
 
     @Override
@@ -105,12 +267,30 @@
     public int hash() {
         int h = 0;
         for (int i = 0; i < fieldNames.length; i++) {
-            h += 31 * h + fieldNames[i].hashCode();
+            h += 31 * h + (int) (hashCodeIndexPairs[i] >> 32);
         }
         for (int i = 0; i < fieldTypes.length; i++) {
             h += 31 * h + fieldTypes[i].hashCode();
         }
         return h;
     }
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject type = new JSONObject();
+        if (isOpen) {
+            type.put("open", true);
+        } else {
+            type.put("open", false);
+        }
 
+        JSONArray fields = new JSONArray();
+        for (int i = 0; i < fieldNames.length; i++) {
+            JSONObject field = new JSONObject();
+            field.put(fieldNames[i], fieldTypes[i].toJSON());
+            fields.put(field);
+        }
+
+        type.put("fields", fields);
+        return type;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ATypeTag.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ATypeTag.java
index aac5447..a0ad3e1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ATypeTag.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ATypeTag.java
@@ -23,7 +23,7 @@
     FLOAT(11),
     DOUBLE(12),
     STRING(13),
-    NULL(14),
+    NULL(14),    
     BOOLEAN(15),
     DATETIME(16),
     DATE(17),
@@ -42,7 +42,9 @@
     LINE(30),
     POLYGON(31),
     CIRCLE(32),
-    RECTANGLE(33);
+    RECTANGLE(33),
+    INTERVAL(34),
+    SYSTEM_NULL(35);
 
     private byte value;
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnionType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnionType.java
index 4e77e0d..dc74b6e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnionType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnionType.java
@@ -4,6 +4,10 @@
 import java.util.Iterator;
 import java.util.List;
 
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
@@ -100,4 +104,23 @@
         return h;
     }
 
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject type = new JSONObject();
+        type.put("type", "UNION");
+
+        JSONArray fields = new JSONArray();
+
+        Iterator<IAType> iter = unionList.iterator();
+        if (iter.hasNext()) {
+            IAType t0 = iter.next();
+            fields.put(t0.toJSON());
+            while (iter.hasNext()) {
+                fields.put(iter.next().toJSON());
+            }
+        }
+
+        type.put("fields", fields);
+        return type;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
index c15dc49..a62bd5b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
@@ -1,5 +1,8 @@
 package edu.uci.ics.asterix.om.types;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.om.base.IAObject;
 
 public class AUnorderedListType extends AbstractCollectionType {
@@ -53,4 +56,10 @@
         return hashCode();
     }
 
+    @Override
+    public JSONObject toJSON() throws JSONException{
+        JSONObject type = new JSONObject();
+        type.put("type", itemType);
+        return type;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
index 5cd3798..2e41d79 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
@@ -1,17 +1,24 @@
 package edu.uci.ics.asterix.om.types;
 
+import edu.uci.ics.asterix.om.base.IAObject;
+
 public abstract class AbstractComplexType implements IAType {
 
-    private static final long serialVersionUID = 1L;
-    protected String typeName;
+	private static final long serialVersionUID = 1L;
+	protected String typeName;
 
-    public AbstractComplexType(String typeName) {
-        this.typeName = typeName;
-    }
+	public AbstractComplexType(String typeName) {
+		this.typeName = typeName;
+	}
 
-    @Override
-    public String getTypeName() {
-        return typeName;
-    }
+	@Override
+	public String getTypeName() {
+		return typeName;
+	}
+
+	@Override
+	public boolean equals(Object object) {
+		return this.deepEqual((IAObject) object);
+	}
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/BuiltinType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/BuiltinType.java
index d289b01..a70f15b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/BuiltinType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/BuiltinType.java
@@ -1,5 +1,8 @@
 package edu.uci.ics.asterix.om.types;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.visitors.IOMVisitor;
@@ -41,6 +44,13 @@
         public String getConstructor() {
             return null;
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AsterixType");
+            return type;
+        }
     };
 
     public final static BuiltinType AINT8 = new LowerCaseConstructorType() {
@@ -61,6 +71,13 @@
         public String getTypeName() {
             return "int8";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AInt8");
+            return type;
+        }
     };
 
     public final static BuiltinType AINT16 = new LowerCaseConstructorType() {
@@ -81,6 +98,13 @@
         public String getTypeName() {
             return "int16";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AInt16");
+            return type;
+        }
     };
 
     public final static BuiltinType AINT32 = new LowerCaseConstructorType() {
@@ -101,6 +125,13 @@
         public String getTypeName() {
             return "int32";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AInt32");
+            return type;
+        }
     };
 
     public static final BuiltinType AINT64 = new LowerCaseConstructorType() {
@@ -122,6 +153,12 @@
             return "int64";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AInt64");
+            return type;
+        }
     };
 
     public final static BuiltinType ABINARY = new LowerCaseConstructorType() {
@@ -143,6 +180,12 @@
             return "binary";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ABinary");
+            return type;
+        }
     };
 
     public final static BuiltinType AFLOAT = new LowerCaseConstructorType() {
@@ -164,6 +207,12 @@
             return "float";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AFloat");
+            return type;
+        }
     };
 
     public final static BuiltinType ADOUBLE = new LowerCaseConstructorType() {
@@ -184,6 +233,13 @@
         public String getTypeName() {
             return "double";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ADouble");
+            return type;
+        }
     };
 
     public final static BuiltinType ASTRING = new LowerCaseConstructorType() {
@@ -204,6 +260,13 @@
         public String getTypeName() {
             return "string";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "AString");
+            return type;
+        }
     };
 
     public final static BuiltinType ANULL = new LowerCaseConstructorType() {
@@ -225,6 +288,12 @@
             return "null";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "Null");
+            return type;
+        }
     };
 
     public final static BuiltinType ABOOLEAN = new LowerCaseConstructorType() {
@@ -246,6 +315,12 @@
             return "boolean";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ABoolean");
+            return type;
+        }
     };
 
     public final static BuiltinType ATIME = new LowerCaseConstructorType() {
@@ -266,6 +341,13 @@
         public String getTypeName() {
             return "time";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ATime");
+            return type;
+        }
     };
 
     public final static BuiltinType ADATE = new LowerCaseConstructorType() {
@@ -286,6 +368,13 @@
         public String getTypeName() {
             return "date";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ADate");
+            return type;
+        }
     };
 
     public final static BuiltinType ADATETIME = new LowerCaseConstructorType() {
@@ -306,6 +395,13 @@
         public String getTypeName() {
             return "datetime";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ADateTime");
+            return type;
+        }
     };
 
     public final static BuiltinType ADURATION = new LowerCaseConstructorType() {
@@ -327,6 +423,37 @@
             return "duration";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ADuration");
+            return type;
+        }
+    };
+
+    public final static BuiltinType AINTERVAL = new LowerCaseConstructorType() {
+
+        private static final long serialVersionUID = 1L;
+
+        @Override
+        public String getDisplayName() {
+            return "AInterval";
+        }
+
+        @Override
+        public ATypeTag getTypeTag() {
+            return ATypeTag.INTERVAL;
+        }
+
+        @Override
+        public String getTypeName() {
+            return "interval";
+        }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            return null;
+        }
     };
 
     public final static BuiltinType APOINT = new LowerCaseConstructorType() {
@@ -347,6 +474,13 @@
         public String getTypeName() {
             return "point";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "APoint");
+            return type;
+        }
     };
 
     public final static BuiltinType APOINT3D = new LowerCaseConstructorType() {
@@ -367,6 +501,13 @@
         public String getTypeName() {
             return "point3d";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "APoint3D");
+            return type;
+        }
     };
 
     public final static BuiltinType ALINE = new LowerCaseConstructorType() {
@@ -388,6 +529,12 @@
             return "line";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ALINE");
+            return type;
+        }
     };
 
     public final static BuiltinType APOLYGON = new LowerCaseConstructorType() {
@@ -409,6 +556,12 @@
             return "polygon";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "APOLYGON");
+            return type;
+        }
     };
 
     public final static BuiltinType ACIRCLE = new LowerCaseConstructorType() {
@@ -430,6 +583,12 @@
             return "circle";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ACIRCLE");
+            return type;
+        }
     };
 
     public final static BuiltinType ARECTANGLE = new LowerCaseConstructorType() {
@@ -451,6 +610,12 @@
             return "rectangle";
         }
 
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ARECTANGLE");
+            return type;
+        }
     };
 
     public static final IAType ABITARRAY = new LowerCaseConstructorType() {
@@ -471,6 +636,13 @@
         public String getTypeName() {
             return "abitarray";
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ABitArray");
+            return type;
+        }
     };
 
     public static final IAType ANY = new BuiltinType() {
@@ -496,6 +668,13 @@
         public String getConstructor() {
             return null;
         }
+
+        @Override
+        public JSONObject toJSON() throws JSONException {
+            JSONObject type = new JSONObject();
+            type.put("type", "ANY");
+            return type;
+        }
     };
 
     public abstract String getConstructor();
@@ -517,7 +696,23 @@
 
     @Override
     public boolean deepEqual(IAObject obj) {
-        return obj == this;
+        if (obj == this) {
+            return true;
+        }
+        if (!(obj instanceof BuiltinType)) {
+            return false;
+        }
+        return ((BuiltinType) obj).getTypeTag().equals(getTypeTag());
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        return this.deepEqual((IAObject) object);
+    }
+
+    @Override
+    public int hashCode() {
+        return getTypeTag().hashCode();
     }
 
     @Override
@@ -551,4 +746,4 @@
         throw new AsterixException("No string translation for type: " + str + " .");
     }
 
-}
\ No newline at end of file
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeSignature.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeSignature.java
new file mode 100644
index 0000000..dc7c6fe
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeSignature.java
@@ -0,0 +1,42 @@
+package edu.uci.ics.asterix.om.types;
+
+import java.io.Serializable;
+
+public class TypeSignature implements Serializable {
+
+    private final String dataverse;
+    private final String name;
+    private final String alias;
+
+    public TypeSignature(String namespace, String name) {
+        this.dataverse = namespace;
+        this.name = name;
+        this.alias = dataverse + "@" + name;
+    }
+
+    public boolean equals(Object o) {
+        if (!(o instanceof TypeSignature)) {
+            return false;
+        } else {
+            TypeSignature f = ((TypeSignature) o);
+            return dataverse.equals(f.getNamespace()) && name.equals(f.getName());
+        }
+    }
+
+    public String toString() {
+        return alias;
+    }
+
+    public int hashCode() {
+        return alias.hashCode();
+    }
+
+    public String getNamespace() {
+        return dataverse;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java
new file mode 100644
index 0000000..76f3301
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.util;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import edu.uci.ics.asterix.common.api.AsterixAppContextInfoImpl;
+
+/**
+ * Utility class for obtaining information on the set of Hyracks NodeController
+ * processes that are running on a given host.
+ */
+public class AsterixRuntimeUtil {
+
+	public static Set<String> getNodeControllersOnIP(String ipAddress)
+			throws Exception {
+		Map<String, Set<String>> nodeControllerInfo = getNodeControllerMap();
+		Set<String> nodeControllersAtLocation = nodeControllerInfo
+				.get(ipAddress);
+		return nodeControllersAtLocation;
+	}
+
+	public static List<String> getAllNodeControllers() throws Exception {
+		Collection<Set<String>> nodeControllersCollection = getNodeControllerMap()
+				.values();
+		List<String> nodeControllers = new ArrayList<String>();
+		for (Set<String> ncCollection : nodeControllersCollection) {
+			nodeControllers.addAll(ncCollection);
+		}
+		return nodeControllers;
+	}
+
+	public static Map<String, Set<String>> getNodeControllerMap()
+			throws Exception {
+		Map<String, Set<String>> map = new HashMap<String, Set<String>>();
+		AsterixAppContextInfoImpl.getInstance().getCCApplicationContext()
+				.getCCContext().getIPAddressNodeMap(map);
+		return map;
+	}
+
+	public static String getIPAddress(String hostname)
+			throws UnknownHostException {
+		String address = InetAddress.getByName(hostname).getHostAddress();
+		if (address.equals("127.0.1.1")) {
+			address = "127.0.0.1";
+		}
+		return address;
+	}
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/NonTaggedFormatUtil.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/NonTaggedFormatUtil.java
index 2ecb301..047c459 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/NonTaggedFormatUtil.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/NonTaggedFormatUtil.java
@@ -2,18 +2,29 @@
 
 import java.util.List;
 
+import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryTokenizerFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlTypeTraitProvider;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
 
 public final class NonTaggedFormatUtil {
 
@@ -90,10 +101,13 @@
             case INT64:
             case DOUBLE:
             case DATETIME:
-            case DURATION:
                 return 8;
+            case DURATION:
+                return 12;
             case POINT:
                 return 16;
+            case INTERVAL:
+                return 17;
             case POINT3D:
             case CIRCLE:
                 return 24;
@@ -136,6 +150,7 @@
             case LINE:
             case POLYGON:
             case CIRCLE:
+            case RECTANGLE:
                 return 2;
             case POINT3D:
                 return 3;
@@ -150,9 +165,64 @@
             case LINE:
             case POLYGON:
             case CIRCLE:
+            case RECTANGLE:
                 return BuiltinType.ADOUBLE;
             default:
                 throw new NotImplementedException(typeTag + " is not a supported spatial data type.");
         }
     }
+
+    public static IBinaryTokenizerFactory getBinaryTokenizerFactory(ATypeTag keyType, IndexType indexType,
+            int gramLength) throws AlgebricksException {
+        switch (indexType) {
+            case WORD_INVIX:
+            case FUZZY_WORD_INVIX: {
+                return AqlBinaryTokenizerFactoryProvider.INSTANCE.getWordTokenizerFactory(keyType, false);
+            }
+            case NGRAM_INVIX:
+            case FUZZY_NGRAM_INVIX: {
+                return AqlBinaryTokenizerFactoryProvider.INSTANCE.getNGramTokenizerFactory(keyType, gramLength, true,
+                        false);
+            }
+            default: {
+                throw new AlgebricksException("Tokenizer not applicable to index type '" + indexType + "'.");
+            }
+        }
+    }
+
+    public static IBinaryComparatorFactory getTokenBinaryComparatorFactory(IAType keyType) throws AlgebricksException {
+        IAType type = keyType;
+        ATypeTag typeTag = keyType.getTypeTag();
+        // Extract item type from list.
+        if (typeTag == ATypeTag.UNORDEREDLIST || typeTag == ATypeTag.ORDEREDLIST) {
+            AbstractCollectionType listType = (AbstractCollectionType) keyType;
+            if (!listType.isTyped()) {
+                throw new AlgebricksException("Cannot build an inverted index on untyped lists.)");
+            }
+            type = listType.getItemType();
+        }
+        // Ignore case for string types.
+        return AqlBinaryComparatorFactoryProvider.INSTANCE.getBinaryComparatorFactory(type, true, true);
+    }
+
+    public static ITypeTraits getTokenTypeTrait(IAType keyType) throws AlgebricksException {
+        IAType type = keyType;
+        ATypeTag typeTag = keyType.getTypeTag();
+        // Extract item type from list.
+        if (typeTag == ATypeTag.UNORDEREDLIST) {
+            AUnorderedListType ulistType = (AUnorderedListType) keyType;
+            if (!ulistType.isTyped()) {
+                throw new AlgebricksException("Cannot build an inverted index on untyped lists.)");
+            }
+            type = ulistType.getItemType();
+        }
+        if (typeTag == ATypeTag.ORDEREDLIST) {
+            AOrderedListType olistType = (AOrderedListType) keyType;
+            if (!olistType.isTyped()) {
+                throw new AlgebricksException("Cannot build an inverted index on untyped lists.)");
+            }
+            type = olistType.getItemType();
+        }
+        return AqlTypeTraitProvider.INSTANCE.getTypeTrait(type);
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java
new file mode 100644
index 0000000..e47d417
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java
@@ -0,0 +1,15 @@
+package edu.uci.ics.asterix.om.util;
+
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * This class extends ByteArrayAccessibleOutputStream to allow reset to a given
+ * size.
+ * 
+ */
+public class ResettableByteArrayOutputStream extends ByteArrayAccessibleOutputStream {
+
+    public void reset(int size) {
+        count = size;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectFactory.java
new file mode 100644
index 0000000..bf11b76
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectFactory.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.util.container;
+
+/**
+ * A factory interface to create objects.
+ */
+public interface IObjectFactory<E, T> {
+
+    /**
+     * create an element of type E
+     * 
+     * @param arg
+     * @return an E element
+     */
+    public E create(T arg);
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectPool.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectPool.java
new file mode 100644
index 0000000..4969cd5
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/IObjectPool.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.util.container;
+
+/**
+ * A reusable object pool interface.
+ */
+public interface IObjectPool<E, T> {
+
+    /**
+     * Give client an E instance
+     * 
+     * @param arg
+     *            the argument to create E
+     * @return an E instance
+     */
+    public E allocate(T arg);
+
+    /**
+     * Mark all instances in the pool as unused
+     */
+    public void reset();
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java
new file mode 100644
index 0000000..8d9057c
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.om.util.container;
+
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.List;
+
+/**
+ * Object pool backed by a list.
+ * 
+ * The argument for creating E instances could be different. This class also
+ * considers arguments in object reusing, e.g., it reuses an E instances ONLY
+ * when the construction argument is "equal".
+ */
+public class ListObjectPool<E, T> implements IObjectPool<E, T> {
+
+    private IObjectFactory<E, T> factory;
+
+    /**
+     * cache of objects
+     */
+    private List<E> pool = new ArrayList<E>();
+
+    /**
+     * args that are used to create each element in the pool
+     */
+    private List<T> args = new ArrayList<T>();
+
+    /**
+     * bits indicating which element is in use
+     */
+    private BitSet usedBits = new BitSet();
+
+    public ListObjectPool(IObjectFactory<E, T> factory) {
+        this.factory = factory;
+    }
+
+    @Override
+    public E allocate(T arg) {
+        int freeSlot = -1;
+        while (freeSlot + 1 < pool.size()) {
+            freeSlot = usedBits.nextClearBit(freeSlot + 1);
+            if (freeSlot >= pool.size())
+                break;
+
+            // the two cases where an element in the pool is a match
+            if ((arg == null && args.get(freeSlot) == null)
+                    || (arg != null && args.get(freeSlot) != null && arg.equals(args.get(freeSlot)))) {
+                // the element is not used and the arg is the same as
+                // input arg
+                usedBits.set(freeSlot);
+                return pool.get(freeSlot);
+            }
+        }
+
+        // if we do not find a reusable object, allocate a new one
+        E element = factory.create(arg);
+        pool.add(element);
+        args.add(arg);
+        usedBits.set(pool.size() - 1);
+        return element;
+    }
+
+    @Override
+    public void reset() {
+        usedBits.clear();
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/IOMVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/IOMVisitor.java
index 2c82174..703b792 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/IOMVisitor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/IOMVisitor.java
@@ -14,6 +14,7 @@
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.AInt8;
+import edu.uci.ics.asterix.om.base.AInterval;
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AOrderedList;
@@ -46,6 +47,8 @@
 
     public void visitADuration(ADuration obj) throws AsterixException;
 
+    public void visitAInterval(AInterval obj) throws AsterixException;
+
     public void visitADate(ADate obj) throws AsterixException;
 
     public void visitATime(ATime obj) throws AsterixException;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/OMPrintToStringVisitor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/OMPrintToStringVisitor.java
index 186aa1a..e7856f0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/OMPrintToStringVisitor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/visitors/OMPrintToStringVisitor.java
@@ -15,6 +15,7 @@
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.AInt8;
+import edu.uci.ics.asterix.om.base.AInterval;
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AOrderedList;
@@ -30,7 +31,7 @@
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 public class OMPrintToStringVisitor implements IOMVisitor {
 
@@ -90,6 +91,12 @@
     }
 
     @Override
+    public void visitAInterval(AInterval obj) throws AsterixException {
+        // TODO Auto-generated method stub
+        throw new NotImplementedException();
+    }
+
+    @Override
     public void visitAFloat(AFloat obj) throws AsterixException {
         buffer.append(obj.getFloatValue() + "f");
     }
diff --git a/asterix-runtime/pom.xml b/asterix-runtime/pom.xml
index e3b246a..71dbae9 100644
--- a/asterix-runtime/pom.xml
+++ b/asterix-runtime/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-runtime</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 
 	<build>
@@ -17,27 +16,104 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
-			<plugin>
-				<groupId>org.codehaus.mojo</groupId>
-				<artifactId>javacc-maven-plugin</artifactId>
-				<version>2.6</version>
-				<executions>
-					<execution>
-						<id>javacc</id>
-						<goals>
-							<goal>javacc</goal>
-						</goals>
-						<configuration>
-							<isStatic>false</isStatic>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
+	      	<plugin>
+	        	<groupId>edu.uci.ics.asterix</groupId>
+	        	<artifactId>lexer-generator-maven-plugin</artifactId>
+	        	<version>0.1</version>
+	        	<configuration>
+	        	  	<grammarFile>src/main/resources/adm.grammar</grammarFile>
+	        	  	<outputDir>${project.build.directory}/generated-sources/edu/uci/ics/asterix/runtime/operators/file/adm</outputDir>
+	        	</configuration>
+	        	<executions>
+		          	<execution>
+		          		<id>generate-lexer</id>
+            			<phase>generate-sources</phase>
+			            <goals>
+	              			<goal>generate-lexer</goal>
+	            		</goals>
+	          		</execution>
+	        	</executions>
+	      	</plugin>
+	      	 <plugin>
+			    <groupId>org.codehaus.mojo</groupId>
+			    <artifactId>build-helper-maven-plugin</artifactId>
+			    <executions>
+			        <execution>
+			            <id>add-source</id>
+			            <phase>generate-sources</phase>
+			            <goals>
+			                <goal>add-source</goal>
+			            </goals>
+			            <configuration>
+			                <sources>
+			                    <source>${project.build.directory}/generated-sources/</source>
+			                </sources>
+			            </configuration>
+			        </execution>
+			    </executions>
+ 			</plugin>
+	    </plugins>
+		<pluginManagement>
+			<plugins>
+				<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
+				<plugin>
+					<groupId>org.eclipse.m2e</groupId>
+					<artifactId>lifecycle-mapping</artifactId>
+					<version>1.0.0</version>
+					<configuration>
+						<lifecycleMappingMetadata>
+							<pluginExecutions>
+								<pluginExecution>
+									<pluginExecutionFilter>
+										<groupId>
+											edu.uci.ics.asterix
+										</groupId>
+										<artifactId>
+											lexer-generator-maven-plugin
+										</artifactId>
+										<versionRange>
+											[0.1,)
+										</versionRange>
+										<goals>
+											<goal>generate-lexer</goal>
+										</goals>
+									</pluginExecutionFilter>
+									<action>
+										<execute>
+											<runOnIncremental>false</runOnIncremental>
+										</execute>
+									</action>
+								</pluginExecution>
+								<pluginExecution>
+									<pluginExecutionFilter>
+										<groupId>
+											org.codehaus.mojo
+										</groupId>
+										<artifactId>
+											build-helper-maven-plugin
+										</artifactId>
+										<versionRange>
+											[1.7,)
+										</versionRange>
+										<goals>
+											<goal>add-source</goal>
+										</goals>
+									</pluginExecutionFilter>
+									<action>
+										<ignore></ignore>
+									</action>
+								</pluginExecution>
+							</pluginExecutions>
+						</lifecycleMappingMetadata>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 	</build>
 
 	<dependencies>
@@ -55,58 +131,30 @@
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
+			<artifactId>hyracks-storage-am-btree</artifactId>
 		</dependency>
 		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-		        <groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-storage-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-		        <groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-api</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-		        <groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-		        <groupId>edu.uci.ics.hyracks</groupId>
-		        <artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.0</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-		        <groupId>edu.uci.ics.asterix</groupId>
-		        <artifactId>asterix-transactions</artifactId>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-transactions</artifactId>
 			<version>0.0.4-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
-		        <groupId>org.twitter4j</groupId>
-		        <artifactId>twitter4j-core</artifactId>
-		        <version>2.2.3</version>
+			<groupId>org.twitter4j</groupId>
+			<artifactId>twitter4j-core</artifactId>
+			<version>2.2.3</version>
 		</dependency>
 		<dependency>
-		        <groupId>org.apache.hadoop</groupId>
-		        <artifactId>hadoop-core</artifactId>
-		        <version>0.20.2</version>
-		        <type>jar</type>
-		        <scope>compile</scope>
+			<groupId>org.apache.hadoop</groupId>
+			<artifactId>hadoop-core</artifactId>
+			<version>0.20.2</version>
+			<type>jar</type>
+			<scope>compile</scope>
 		</dependency>
+		<dependency>
+		         <groupId>edu.uci.ics.hyracks</groupId>
+		         <artifactId>hyracks-api</artifactId>
+	        </dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
index 07d8141..09325e4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
@@ -1,12 +1,14 @@
 package edu.uci.ics.asterix.runtime.aggregates.base;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
-import edu.uci.ics.asterix.runtime.base.IAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractAggregateFunctionDynamicDescriptor implements IAggregateFunctionDynamicDescriptor {
+public abstract class AbstractAggregateFunctionDynamicDescriptor extends AbstractFunctionDescriptor  {
     private static final long serialVersionUID = 1L;
 
     public FunctionDescriptorTag getFunctionDescriptorTag() {
         return FunctionDescriptorTag.AGGREGATE;
     }
+
+   
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractSerializableAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractSerializableAggregateFunctionDynamicDescriptor.java
index 0634868..abde117 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractSerializableAggregateFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractSerializableAggregateFunctionDynamicDescriptor.java
@@ -1,10 +1,9 @@
 package edu.uci.ics.asterix.runtime.aggregates.base;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
-import edu.uci.ics.asterix.runtime.base.ISerializableAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractSerializableAggregateFunctionDynamicDescriptor implements
-        ISerializableAggregateFunctionDynamicDescriptor {
+public abstract class AbstractSerializableAggregateFunctionDynamicDescriptor extends AbstractFunctionDescriptor {
     private static final long serialVersionUID = 1L;
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java
new file mode 100644
index 0000000..c0c08fd
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java
@@ -0,0 +1,47 @@
+package edu.uci.ics.asterix.runtime.aggregates.base;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SingleFieldFrameTupleReference implements IFrameTupleReference {
+
+    private byte[] fieldData;
+    private int start;
+    private int length;
+    
+    public void reset(byte[] fieldData, int start, int length) {
+        this.fieldData = fieldData;
+        this.start = start;
+        this.length = length;
+    }
+    
+    @Override
+    public int getFieldCount() {
+        return 1;
+    }
+
+    @Override
+    public byte[] getFieldData(int fIdx) {
+        return fieldData;
+    }
+
+    @Override
+    public int getFieldStart(int fIdx) {
+       return start;
+    }
+
+    @Override
+    public int getFieldLength(int fIdx) {
+       return length;
+    }
+
+    @Override
+    public IFrameTupleAccessor getFrameTupleAccessor() {
+        return null;
+    }
+
+    @Override
+    public int getTupleIndex() {
+        return 0;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
index b3a38a0..a24b893 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
@@ -1,18 +1,23 @@
 package edu.uci.ics.asterix.runtime.aggregates.collections;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 public class ListifyAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "listify", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ListifyAggregateDescriptor();
+        }
+    };
 
     private AOrderedListType oltype;
 
@@ -22,11 +27,11 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LISTIFY;
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
         return new ListifyAggregateFunctionEvalFactory(args, oltype);
     }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
index e1ccc93..5c928e1 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
@@ -5,44 +5,39 @@
 
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class ListifyAggregateFunctionEvalFactory implements IAggregateFunctionFactory {
+public class ListifyAggregateFunctionEvalFactory implements ICopyAggregateFunctionFactory {
 
     private static final long serialVersionUID = 1L;
-    private IEvaluatorFactory[] args;
+    private ICopyEvaluatorFactory[] args;
     private final AOrderedListType orderedlistType;
 
-    public ListifyAggregateFunctionEvalFactory(IEvaluatorFactory[] args, AOrderedListType type) {
+    public ListifyAggregateFunctionEvalFactory(ICopyEvaluatorFactory[] args, AOrderedListType type) {
         this.args = args;
         this.orderedlistType = type;
     }
 
     @Override
-    public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider) throws AlgebricksException {
+    public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider) throws AlgebricksException {
 
-        return new IAggregateFunction() {
+        return new ICopyAggregateFunction() {
 
             private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-            private IEvaluator eval = args[0].createEvaluator(inputVal);
+            private ICopyEvaluator eval = args[0].createEvaluator(inputVal);
             private DataOutput out = provider.getDataOutput();
             private OrderedListBuilder builder = new OrderedListBuilder();
 
             @Override
             public void init() throws AlgebricksException {
-                try {
-                    builder.reset(orderedlistType);
-                } catch (HyracksDataException e) {
-                    throw new AlgebricksException(e);
-                }
+                builder.reset(orderedlistType);
             }
 
             @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/AbstractScalarAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/AbstractScalarAggregateDescriptor.java
new file mode 100644
index 0000000..3de05f8
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/AbstractScalarAggregateDescriptor.java
@@ -0,0 +1,46 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.FunctionManagerHolder;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionManager;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.runtime.unnestingfunctions.std.ScanCollectionDescriptor.ScanCollectionUnnestingFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.evaluators.ColumnAccessEvalFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public abstract class AbstractScalarAggregateDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                // The aggregate function will get a SingleFieldFrameTupleReference that points to the result of the ScanCollection.
+                // The list-item will always reside in the first field (column) of the SingleFieldFrameTupleReference.
+                ICopyEvaluatorFactory[] aggFuncArgs = new ICopyEvaluatorFactory[1];
+                aggFuncArgs[0] = new ColumnAccessEvalFactory(0);
+                // Create aggregate function from this scalar version.
+                FunctionIdentifier fid = AsterixBuiltinFunctions.getAggregateFunction(getIdentifier());
+                IFunctionManager mgr = FunctionManagerHolder.getFunctionManager();
+                IFunctionDescriptor fd = mgr.lookupFunction(fid);
+                AbstractAggregateFunctionDynamicDescriptor aggFuncDesc = (AbstractAggregateFunctionDynamicDescriptor) fd;
+                ICopyAggregateFunctionFactory aggFuncFactory = aggFuncDesc.createAggregateFunctionFactory(aggFuncArgs);
+                // Use ScanCollection to iterate over list items.
+                ScanCollectionUnnestingFunctionFactory scanCollectionFactory = new ScanCollectionUnnestingFunctionFactory(
+                        args[0]);
+                return new GenericScalarAggregateFunction(aggFuncFactory.createAggregateFunction(output),
+                        scanCollectionFactory);
+            }
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/GenericScalarAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/GenericScalarAggregateFunction.java
new file mode 100644
index 0000000..195b391
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/GenericScalarAggregateFunction.java
@@ -0,0 +1,42 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.runtime.aggregates.base.SingleFieldFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * Implements scalar aggregates by iterating over a collection with the ScanCollection unnesting function,
+ * and applying the corresponding ICopyAggregateFunction to each collection-item.
+ */
+public class GenericScalarAggregateFunction implements ICopyEvaluator {
+
+    private final ArrayBackedValueStorage listItemOut = new ArrayBackedValueStorage();
+    private final ICopyAggregateFunction aggFunc;
+    private final ICopyUnnestingFunction scanCollection;
+
+    private final SingleFieldFrameTupleReference itemTuple = new SingleFieldFrameTupleReference();
+
+    public GenericScalarAggregateFunction(ICopyAggregateFunction aggFunc,
+            ICopyUnnestingFunctionFactory scanCollectionFactory) throws AlgebricksException {
+        this.aggFunc = aggFunc;
+        this.scanCollection = scanCollectionFactory.createUnnestingFunction(listItemOut);
+        listItemOut.reset();
+    }
+
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        scanCollection.init(tuple);
+        aggFunc.init();
+        while (scanCollection.step()) {
+            itemTuple.reset(listItemOut.getByteArray(), 0, listItemOut.getLength());
+            aggFunc.step(itemTuple);
+            listItemOut.reset();
+        }
+        aggFunc.finish();
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarAvgAggregateDescriptor.java
new file mode 100644
index 0000000..ae2a485
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarAvgAggregateDescriptor.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class ScalarAvgAggregateDescriptor extends AbstractScalarAggregateDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScalarAvgAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarCountAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarCountAggregateDescriptor.java
new file mode 100644
index 0000000..6f3baa6
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarCountAggregateDescriptor.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class ScalarCountAggregateDescriptor extends AbstractScalarAggregateDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "count", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScalarCountAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMaxAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMaxAggregateDescriptor.java
new file mode 100644
index 0000000..a71eb3c
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMaxAggregateDescriptor.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class ScalarMaxAggregateDescriptor extends AbstractScalarAggregateDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "max", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScalarMaxAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMinAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMinAggregateDescriptor.java
new file mode 100644
index 0000000..4beae60
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarMinAggregateDescriptor.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class ScalarMinAggregateDescriptor extends AbstractScalarAggregateDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "min", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScalarMinAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarSumAggregateDescriptor.java
new file mode 100644
index 0000000..f3d9d1a
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/scalar/ScalarSumAggregateDescriptor.java
@@ -0,0 +1,22 @@
+package edu.uci.ics.asterix.runtime.aggregates.scalar;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class ScalarSumAggregateDescriptor extends AbstractScalarAggregateDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScalarSumAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
index 86b7052..6917f0b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
@@ -4,7 +4,6 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -15,44 +14,50 @@
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SerializableAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg-serial", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableAvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_AVG;
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(IEvaluatorFactory[] args)
-            throws AlgebricksException {
-        final IEvaluatorFactory[] evals = args;
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        final ICopyEvaluatorFactory[] evals = args;
 
-        return new ISerializableAggregateFunctionFactory() {
+        return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
-            public ISerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
-                return new ISerializableAggregateFunction() {
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+                return new ICopySerializableAggregateFunction() {
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = evals[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = evals[0].createEvaluator(inputVal);
 
                     private AMutableDouble aDouble = new AMutableDouble(0);
                     @SuppressWarnings("unchecked")
@@ -83,36 +88,36 @@
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
                         if (inputVal.getLength() > 0) {
                             ++count;
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
+                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal
+                                    .getByteArray()[0]);
                             switch (typeTag) {
                                 case INT8: {
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
+                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
                                 case INT16: {
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
+                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
                                 case INT32: {
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
                                 case INT64: {
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
+                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
                                 case FLOAT: {
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
+                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
                                 case DOUBLE: {
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
+                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
                                     sum += val;
                                     break;
                                 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
index 62e1efc..b232d6d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
@@ -3,52 +3,68 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 /**
- * NULLs are also counted.
+ * count(NULL) returns NULL.
  */
 public class SerializableCountAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "count-serial",
-            1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableCountAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_COUNT;
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException {
-        return new ISerializableAggregateFunctionFactory() {
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public ISerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
 
-                return new ISerializableAggregateFunction() {
+                return new ICopySerializableAggregateFunction() {
                     private AMutableInt32 result = new AMutableInt32(-1);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.AINT32);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(inputVal);
 
                     @Override
                     public void init(DataOutput state) throws AlgebricksException {
                         try {
+                            state.writeBoolean(false);
                             state.writeInt(0);
                         } catch (IOException e) {
                             throw new AlgebricksException(e);
@@ -58,17 +74,32 @@
                     @Override
                     public void step(IFrameTupleReference tuple, byte[] state, int start, int len)
                             throws AlgebricksException {
-                        int cnt = BufferSerDeUtil.getInt(state, start);
-                        cnt++;
-                        BufferSerDeUtil.writeInt(cnt, state, start);
+                        boolean metNull = BufferSerDeUtil.getBoolean(state, start);
+                        int cnt = BufferSerDeUtil.getInt(state, start + 1);
+                        inputVal.reset();
+                        eval.evaluate(tuple);
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                                .deserialize(inputVal.getByteArray()[0]);
+                        if (typeTag == ATypeTag.NULL) {
+                            metNull = true;
+                        } else {
+                            cnt++;
+                        }
+                        BufferSerDeUtil.writeBoolean(metNull, state, start);
+                        BufferSerDeUtil.writeInt(cnt, state, start + 1);
                     }
 
                     @Override
                     public void finish(byte[] state, int start, int len, DataOutput out) throws AlgebricksException {
-                        int cnt = BufferSerDeUtil.getInt(state, start);
+                        boolean metNull = BufferSerDeUtil.getBoolean(state, start);
+                        int cnt = BufferSerDeUtil.getInt(state, start + 1);
                         try {
-                            result.setValue(cnt);
-                            int32Serde.serialize(result, out);
+                            if (metNull) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                result.setValue(cnt);
+                                int32Serde.serialize(result, out);
+                            }
                         } catch (IOException e) {
                             throw new AlgebricksException(e);
                         }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
index c046652..f720434 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.aggregates.serializable.std;
 
 import java.io.DataOutput;
@@ -6,8 +21,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
@@ -17,6 +31,9 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -26,49 +43,57 @@
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.AccessibleByteArrayEval;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory.ClosedRecordConstructorEval;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SerializableGlobalAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "global-avg-serial", 1, true);
-    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
-    private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableGlobalAvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_GLOBAL_AVG;
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(IEvaluatorFactory[] args)
-            throws AlgebricksException {
-        final IEvaluatorFactory[] evals = args;
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        final ICopyEvaluatorFactory[] evals = args;
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         unionList.add(BuiltinType.ADOUBLE);
-        final ARecordType recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT64 }, true);
+        ARecordType _recType;
+        try {
+            _recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                    new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT64 }, true);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
 
-        return new ISerializableAggregateFunctionFactory() {
+        final ARecordType recType = _recType;
+
+        return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public ISerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
 
-                return new ISerializableAggregateFunction() {
+                return new ICopySerializableAggregateFunction() {
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = evals[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = evals[0].createEvaluator(inputVal);
                     private AMutableDouble aDouble = new AMutableDouble(0);
                     private AMutableInt64 aInt64 = new AMutableInt64(0);
 
@@ -77,8 +102,8 @@
                     private DataOutput sumBytesOutput = new DataOutputStream(sumBytes);
                     private ByteArrayAccessibleOutputStream countBytes = new ByteArrayAccessibleOutputStream();
                     private DataOutput countBytesOutput = new DataOutputStream(countBytes);
-                    private IEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
-                    private IEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
+                    private ICopyEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
+                    private ICopyEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
                     private ClosedRecordConstructorEval recordEval;
 
                     @SuppressWarnings("unchecked")
@@ -111,12 +136,25 @@
 
                         inputVal.reset();
                         eval.evaluate(tuple);
-                        byte[] serBytes = inputVal.getBytes();
-                        if (serBytes[0] == SER_NULL_TYPE_TAG)
-                            metNull = true;
-                        if (serBytes[0] != SER_RECORD_TYPE_TAG) {
-                            throw new AlgebricksException("Global-Avg is not defined for values of type "
-                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]));
+                        byte[] serBytes = inputVal.getByteArray();
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]);
+                        switch (typeTag) {
+                            case NULL: {
+                                metNull = true;
+                                break;
+                            }
+                            case SYSTEM_NULL: {
+                                // Ignore and return.
+                                return;
+                            }
+                            case RECORD: {
+                                // Expected.
+                                break;
+                            }
+                            default: {
+                                throw new AlgebricksException("Global-Avg is not defined for values of type "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]));
+                            }
                         }
                         int offset1 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 0, 1, true);
                         if (offset1 == 0) // the sum is null
@@ -139,19 +177,15 @@
                         long globalCount = BufferSerDeUtil.getLong(state, start + 8);
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
 
-                        if (globalCount == 0) {
-                            GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
-                        } else {
-                            try {
-                                if (metNull)
-                                    nullSerde.serialize(ANull.NULL, result);
-                                else {
-                                    aDouble.setValue(globalSum / globalCount);
-                                    doubleSerde.serialize(aDouble, result);
-                                }
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                        try {
+                            if (globalCount == 0 || metNull)
+                                nullSerde.serialize(ANull.NULL, result);
+                            else {
+                                aDouble.setValue(globalSum / globalCount);
+                                doubleSerde.serialize(aDouble, result);
                             }
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
 
@@ -163,28 +197,24 @@
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
 
                         if (recordEval == null)
-                            recordEval = new ClosedRecordConstructorEval(recType,
-                                    new IEvaluator[] { evalSum, evalCount }, avgBytes, result);
+                            recordEval = new ClosedRecordConstructorEval(recType, new ICopyEvaluator[] { evalSum,
+                                    evalCount }, avgBytes, result);
 
-                        if (globalCount == 0) {
-                            GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
-                        } else {
-                            try {
-                                if (metNull) {
-                                    sumBytes.reset();
-                                    nullSerde.serialize(ANull.NULL, sumBytesOutput);
-                                } else {
-                                    sumBytes.reset();
-                                    aDouble.setValue(globalSum);
-                                    doubleSerde.serialize(aDouble, sumBytesOutput);
-                                }
-                                countBytes.reset();
-                                aInt64.setValue(globalCount);
-                                longSerde.serialize(aInt64, countBytesOutput);
-                                recordEval.evaluate(null);
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                        try {
+                            if (globalCount == 0 || metNull) {
+                                sumBytes.reset();
+                                nullSerde.serialize(ANull.NULL, sumBytesOutput);
+                            } else {
+                                sumBytes.reset();
+                                aDouble.setValue(globalSum);
+                                doubleSerde.serialize(aDouble, sumBytesOutput);
                             }
+                            countBytes.reset();
+                            aInt64.setValue(globalCount);
+                            longSerde.serialize(aInt64, countBytesOutput);
+                            recordEval.evaluate(null);
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
                 };
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
index 09f68ac..219204b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.aggregates.serializable.std;
 
 import java.io.DataOutput;
@@ -6,8 +21,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -20,6 +34,9 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -29,46 +46,56 @@
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.AccessibleByteArrayEval;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory.ClosedRecordConstructorEval;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SerializableLocalAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "local-avg-serial", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableLocalAvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_LOCAL_AVG;
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(IEvaluatorFactory[] args)
-            throws AlgebricksException {
-        final IEvaluatorFactory[] evals = args;
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        final ICopyEvaluatorFactory[] evals = args;
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         unionList.add(BuiltinType.ADOUBLE);
-        final ARecordType recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT64 }, true);
+        ARecordType tmpRecType;
+        try {
+            tmpRecType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                    new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT64 }, true);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
 
-        return new ISerializableAggregateFunctionFactory() {
+        final ARecordType recType = tmpRecType;
+
+        return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
-            public ISerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
-                return new ISerializableAggregateFunction() {
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+                return new ICopySerializableAggregateFunction() {
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = evals[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = evals[0].createEvaluator(inputVal);
                     private ClosedRecordConstructorEval recordEval;
 
                     private AMutableDouble aDouble = new AMutableDouble(0);
@@ -89,15 +116,15 @@
                     private DataOutput sumBytesOutput = new DataOutputStream(sumBytes);
                     private ByteArrayAccessibleOutputStream countBytes = new ByteArrayAccessibleOutputStream();
                     private DataOutput countBytesOutput = new DataOutputStream(countBytes);
-                    private IEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
-                    private IEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
+                    private ICopyEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
+                    private ICopyEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
 
                     @Override
                     public void init(DataOutput state) throws AlgebricksException {
                         try {
                             state.writeDouble(0.0);
                             state.writeLong(0);
-                            state.writeBoolean(false);
+                            state.writeByte(ATypeTag.SYSTEM_NULL.serialize());
                         } catch (IOException e) {
                             throw new AlgebricksException(e);
                         }
@@ -110,87 +137,90 @@
                         eval.evaluate(tuple);
                         double sum = BufferSerDeUtil.getDouble(state, start);
                         long count = BufferSerDeUtil.getLong(state, start + 8);
-                        boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
-                        if (inputVal.getLength() > 0) {
-                            ++count;
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT16: {
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT32: {
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT64: {
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute AVG for values of type "
-                                            + typeTag);
-                                }
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                                .deserialize(inputVal.getByteArray()[0]);
+                        ATypeTag aggType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(state[start + 16]);
+                        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+                            aggType = ATypeTag.NULL;
+                            return;
+                        } else if (aggType == ATypeTag.SYSTEM_NULL) {
+                            aggType = typeTag;
+                        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+                            throw new AlgebricksException("Unexpected type " + typeTag
+                                    + " in aggregation input stream. Expected type " + aggType + ".");
+                        }
+                        ++count;
+                        switch (typeTag) {
+                            case INT8: {
+                                byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
                             }
-                            inputVal.reset();
+                            case INT16: {
+                                short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT32: {
+                                int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT64: {
+                                long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case FLOAT: {
+                                float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case DOUBLE: {
+                                double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case NULL: {
+                                break;
+                            }
+                            default: {
+                                throw new NotImplementedException("Cannot compute AVG for values of type " + typeTag);
+                            }
                         }
                         BufferSerDeUtil.writeDouble(sum, state, start);
                         BufferSerDeUtil.writeLong(count, state, start + 8);
-                        BufferSerDeUtil.writeBoolean(metNull, state, start + 16);
+                        state[start + 16] = aggType.serialize();
                     }
 
                     @Override
                     public void finish(byte[] state, int start, int len, DataOutput result) throws AlgebricksException {
                         double sum = BufferSerDeUtil.getDouble(state, start);
                         long count = BufferSerDeUtil.getLong(state, start + 8);
-                        boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
-                        if (recordEval == null)
-                            recordEval = new ClosedRecordConstructorEval(recType,
-                                    new IEvaluator[] { evalSum, evalCount }, avgBytes, result);
-                        if (count == 0) {
-                            if (GlobalConfig.DEBUG) {
-                                GlobalConfig.ASTERIX_LOGGER.finest("AVG aggregate ran over empty input.");
+                        ATypeTag aggType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(state[start + 16]);
+                        if (recordEval == null) {
+                            recordEval = new ClosedRecordConstructorEval(recType, new ICopyEvaluator[] { evalSum,
+                                    evalCount }, avgBytes, result);
+                        }
+                        try {
+                            if (count == 0) {
+                                result.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+                                return;
                             }
-                        } else {
-                            try {
-                                if (metNull) {
-                                    sumBytes.reset();
-                                    nullSerde.serialize(ANull.NULL, sumBytesOutput);
-                                } else {
-                                    sumBytes.reset();
-                                    aDouble.setValue(sum);
-                                    doubleSerde.serialize(aDouble, sumBytesOutput);
-                                }
-                                countBytes.reset();
-                                aInt64.setValue(count);
-                                int64Serde.serialize(aInt64, countBytesOutput);
-                                recordEval.evaluate(null);
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                            if (aggType == ATypeTag.NULL) {
+                                sumBytes.reset();
+                                nullSerde.serialize(ANull.NULL, sumBytesOutput);
+                            } else {
+                                sumBytes.reset();
+                                aDouble.setValue(sum);
+                                doubleSerde.serialize(aDouble, sumBytesOutput);
                             }
+                            countBytes.reset();
+                            aInt64.setValue(count);
+                            int64Serde.serialize(aInt64, countBytesOutput);
+                            recordEval.evaluate(null);
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalSumAggregateDescriptor.java
new file mode 100644
index 0000000..6badf0f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalSumAggregateDescriptor.java
@@ -0,0 +1,41 @@
+package edu.uci.ics.asterix.runtime.aggregates.serializable.std;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
+
+public class SerializableLocalSumAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "local-sum-serial", 1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableLocalSumAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    @Override
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopySerializableAggregateFunctionFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+                return new SerializableSumAggregateFunction(args, true);
+            }
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
index ed4d728..a26c48a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
@@ -1,230 +1,39 @@
 package edu.uci.ics.asterix.runtime.aggregates.serializable.std;
 
-import java.io.DataOutput;
-import java.io.IOException;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractSerializableAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunctionFactory;
 
 public class SerializableSumAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum-serial", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SerializableSumAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_SUM;
     }
 
     @Override
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException {
-        return new ISerializableAggregateFunctionFactory() {
-            private static final long serialVersionUID = 1L;
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopySerializableAggregateFunctionFactory() {
+            private static final long serialVersionUID = 1L;           
 
             @Override
-            public ISerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
-
-                return new ISerializableAggregateFunction() {
-
-                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer serde;
-
-                    @Override
-                    public void init(DataOutput state) throws AlgebricksException {
-                        try {
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeBoolean(false);
-                            state.writeDouble(0.0);
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-                    }
-
-                    @Override
-                    public void step(IFrameTupleReference tuple, byte[] state, int start, int len)
-                            throws AlgebricksException {
-                        int pos = start;
-                        boolean metInt8s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt16s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt32s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt64s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metFloats = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metDoubles = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metNull = BufferSerDeUtil.getBoolean(state, pos++);
-                        double sum = BufferSerDeUtil.getDouble(state, pos);
-
-                        inputVal.reset();
-                        eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    metInt8s = true;
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT16: {
-                                    metInt16s = true;
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT32: {
-                                    metInt32s = true;
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT64: {
-                                    metInt64s = true;
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    metFloats = true;
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    metDoubles = true;
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute SUM for values of type "
-                                            + typeTag);
-                                }
-                            }
-                        }
-
-                        pos = start;
-                        BufferSerDeUtil.writeBoolean(metInt8s, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metInt16s, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metInt32s, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metInt64s, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metFloats, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metDoubles, state, pos++);
-                        BufferSerDeUtil.writeBoolean(metNull, state, pos++);
-                        BufferSerDeUtil.writeDouble(sum, state, pos);
-                    }
-
-                    @SuppressWarnings("unchecked")
-                    @Override
-                    public void finish(byte[] state, int start, int len, DataOutput out) throws AlgebricksException {
-                        int pos = start;
-                        boolean metInt8s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt16s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt32s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metInt64s = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metFloats = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metDoubles = BufferSerDeUtil.getBoolean(state, pos++);
-                        boolean metNull = BufferSerDeUtil.getBoolean(state, pos++);
-                        double sum = BufferSerDeUtil.getDouble(state, pos);
-                        try {
-                            if (metNull) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ANULL);
-                                serde.serialize(ANull.NULL, out);
-                            } else if (metDoubles) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(sum);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloats) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue((float) sum);
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue((long) sum);
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue((int) sum);
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) sum);
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) sum);
-                                serde.serialize(aInt8, out);
-                            } else {
-                                GlobalConfig.ASTERIX_LOGGER.fine("SUM aggregate ran over empty input.");
-                            }
-
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-
-                    }
-
-                    @Override
-                    public void finishPartial(byte[] state, int start, int len, DataOutput out)
-                            throws AlgebricksException {
-                        finish(state, start, len, out);
-                    }
-                };
+            public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
+                return new SerializableSumAggregateFunction(args, false);
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java
new file mode 100644
index 0000000..c027716
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java
@@ -0,0 +1,198 @@
+package edu.uci.ics.asterix.runtime.aggregates.serializable.std;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopySerializableAggregateFunction;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SerializableSumAggregateFunction implements ICopySerializableAggregateFunction {
+    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval;
+    private AMutableDouble aDouble = new AMutableDouble(0);
+    private AMutableFloat aFloat = new AMutableFloat(0);
+    private AMutableInt64 aInt64 = new AMutableInt64(0);
+    private AMutableInt32 aInt32 = new AMutableInt32(0);
+    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer serde;
+    private final boolean isLocalAgg;
+
+    public SerializableSumAggregateFunction(ICopyEvaluatorFactory[] args, boolean isLocalAgg)
+            throws AlgebricksException {
+        eval = args[0].createEvaluator(inputVal);
+        this.isLocalAgg = isLocalAgg;
+    }
+
+    @Override
+    public void init(DataOutput state) throws AlgebricksException {
+        try {
+            state.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+            state.writeDouble(0.0);
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    @Override
+    public void step(IFrameTupleReference tuple, byte[] state, int start, int len) throws AlgebricksException {
+        ATypeTag aggType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(state[start]);
+        double sum = BufferSerDeUtil.getDouble(state, start + 1);
+        inputVal.reset();
+        eval.evaluate(tuple);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]);
+        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+            aggType = ATypeTag.NULL;
+            return;
+        } else if (aggType == ATypeTag.SYSTEM_NULL) {
+            aggType = typeTag;
+        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+            throw new AlgebricksException("Unexpected type " + typeTag
+                    + " in aggregation input stream. Expected type " + aggType + ".");
+        }
+        switch (typeTag) {
+            case INT8: {
+                byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT16: {
+                short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT32: {
+                int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT64: {
+                long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case FLOAT: {
+                float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case DOUBLE: {
+                double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case NULL: {
+                aggType = typeTag;
+                break;
+            }
+            case SYSTEM_NULL: {
+                // For global aggregates simply ignore system null here,
+                // but if all input value are system null, then we should return
+                // null in finish().
+                if (isLocalAgg) {
+                    throw new AlgebricksException("Type SYSTEM_NULL encountered in local aggregate.");
+                }
+                break;
+            }
+            default: {
+                throw new NotImplementedException("Cannot compute SUM for values of type " + typeTag + ".");
+            }
+        }
+        state[start] = aggType.serialize();
+        BufferSerDeUtil.writeDouble(sum, state, start + 1);
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void finish(byte[] state, int start, int len, DataOutput out) throws AlgebricksException {
+        ATypeTag aggType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(state[start]);
+        double sum = BufferSerDeUtil.getDouble(state, start + 1);
+        try {
+            switch (aggType) {
+                case INT8: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT8);
+                    aInt8.setValue((byte) sum);
+                    serde.serialize(aInt8, out);
+                    break;
+                }
+                case INT16: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT16);
+                    aInt16.setValue((short) sum);
+                    serde.serialize(aInt16, out);
+                    break;
+                }
+                case INT32: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
+                    aInt32.setValue((int) sum);
+                    serde.serialize(aInt32, out);
+                    break;
+                }
+                case INT64: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT64);
+                    aInt64.setValue((long) sum);
+                    serde.serialize(aInt64, out);
+                    break;
+                }
+                case FLOAT: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AFLOAT);
+                    aFloat.setValue((float) sum);
+                    serde.serialize(aFloat, out);
+                    break;
+                }
+                case DOUBLE: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ADOUBLE);
+                    aDouble.setValue(sum);
+                    serde.serialize(aDouble, out);
+                    break;
+                }
+                case NULL: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ANULL);
+                    serde.serialize(ANull.NULL, out);
+                    break;
+                }
+                case SYSTEM_NULL: {
+                    // Empty stream. For local agg return system null. For global agg return null.
+                    if (isLocalAgg) {
+                        out.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+                    } else {
+                        serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ANULL);
+                        serde.serialize(ANull.NULL, out);
+                    }
+                    break;
+                }
+            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+
+    }
+
+    @Override
+    public void finishPartial(byte[] state, int start, int len, DataOutput out) throws AlgebricksException {
+        finish(state, start, len, out);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
index e548fb8..93c7026 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
 import java.io.DataOutput;
@@ -7,7 +22,7 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -20,6 +35,9 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -29,53 +47,64 @@
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.AccessibleByteArrayEval;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory.ClosedRecordConstructorEval;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.AVG;
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         unionList.add(BuiltinType.ADOUBLE);
-        final ARecordType recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, true);
+        ARecordType tmpRecType;
+        try {
+            tmpRecType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                    new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, true);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
 
-        return new IAggregateFunctionFactory() {
+        final ARecordType recType = tmpRecType;
+
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
 
-                return new IAggregateFunction() {
+                return new ICopyAggregateFunction() {
 
                     private DataOutput out = provider.getDataOutput();
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = args[0].createEvaluator(inputVal);
                     private double sum;
                     private int count;
+                    private ATypeTag aggType;
                     private AMutableDouble aDouble = new AMutableDouble(0);
                     private AMutableInt32 aInt32 = new AMutableInt32(0);
 
@@ -84,10 +113,10 @@
                     private DataOutput sumBytesOutput = new DataOutputStream(sumBytes);
                     private ByteArrayAccessibleOutputStream countBytes = new ByteArrayAccessibleOutputStream();
                     private DataOutput countBytesOutput = new DataOutputStream(countBytes);
-                    private IEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
-                    private IEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
+                    private ICopyEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
+                    private ICopyEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
                     private ClosedRecordConstructorEval recordEval = new ClosedRecordConstructorEval(recType,
-                            new IEvaluator[] { evalSum, evalCount }, avgBytes, out);
+                            new ICopyEvaluator[] { evalSum, evalCount }, avgBytes, out);
 
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -98,10 +127,10 @@
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ANULL);
-                    private boolean metNull;
 
                     @Override
                     public void init() throws AlgebricksException {
+                        aggType = ATypeTag.SYSTEM_NULL;
                         sum = 0.0;
                         count = 0;
                     }
@@ -110,69 +139,71 @@
                     public void step(IFrameTupleReference tuple) throws AlgebricksException {
                         inputVal.reset();
                         eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                                .deserialize(inputVal.getByteArray()[0]);
+                        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+                            aggType = ATypeTag.NULL;
+                            return;
+                        } else if (aggType == ATypeTag.SYSTEM_NULL) {
+                            aggType = typeTag;
+                        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+                            throw new AlgebricksException("Unexpected type " + typeTag
+                                    + " in aggregation input stream. Expected type " + aggType + ".");
+                        }
+                        if (typeTag != ATypeTag.SYSTEM_NULL) {
                             ++count;
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT16: {
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT32: {
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT64: {
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute AVG for values of type "
-                                            + typeTag);
-                                }
+                        }
+                        switch (typeTag) {
+                            case INT8: {
+                                byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
                             }
-                            inputVal.reset();
+                            case INT16: {
+                                short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT32: {
+                                int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT64: {
+                                long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case FLOAT: {
+                                float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case DOUBLE: {
+                                double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case NULL: {
+                                break;
+                            }
+                            default: {
+                                throw new NotImplementedException("Cannot compute AVG for values of type " + typeTag);
+                            }
                         }
                     }
 
                     @Override
                     public void finish() throws AlgebricksException {
-                        if (count == 0) {
-                            GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
-                        } else {
-                            try {
-                                if (metNull)
-                                    nullSerde.serialize(ANull.NULL, out);
-                                else {
-                                    aDouble.setValue(sum / count);
-                                    doubleSerde.serialize(aDouble, out);
-                                }
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                        try {
+                            if (count == 0 || aggType == ATypeTag.NULL) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                aDouble.setValue(sum / count);
+                                doubleSerde.serialize(aDouble, out);
                             }
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
 
@@ -184,7 +215,7 @@
                             }
                         } else {
                             try {
-                                if (metNull) {
+                                if (aggType == ATypeTag.NULL) {
                                     sumBytes.reset();
                                     nullSerde.serialize(ANull.NULL, sumBytesOutput);
                                 } else {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
index 39c7910..9c2c995 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
@@ -1,22 +1,15 @@
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
-import java.io.DataOutput;
-import java.io.IOException;
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 /**
  * NULLs are also counted.
@@ -24,60 +17,29 @@
 public class CountAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-count", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CountAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNT;
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(IDataOutputProvider provider) throws AlgebricksException {
-
-                final DataOutput out = provider.getDataOutput();
-
-                return new IAggregateFunction() {
-                    private AMutableInt32 result = new AMutableInt32(-1);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
-                            .getSerializerDeserializer(BuiltinType.AINT32);
-                    private int cnt;
-
-                    @Override
-                    public void init() {
-                        cnt = 0;
-                    }
-
-                    @Override
-                    public void step(IFrameTupleReference tuple) throws AlgebricksException {
-                        cnt++;
-                    }
-
-                    @Override
-                    public void finish() throws AlgebricksException {
-                        try {
-                            result.setValue(cnt);
-                            int32Serde.serialize(result, out);
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-                    }
-
-                    @Override
-                    public void finishPartial() throws AlgebricksException {
-                        finish();
-                    }
-                };
+            public ICopyAggregateFunction createAggregateFunction(IDataOutputProvider provider)
+                    throws AlgebricksException {
+                return new CountAggregateFunction(args, provider);
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateFunction.java
new file mode 100644
index 0000000..e4d015b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateFunction.java
@@ -0,0 +1,81 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * count(NULL) returns NULL.
+ */
+public class CountAggregateFunction implements ICopyAggregateFunction {
+    private AMutableInt32 result = new AMutableInt32(-1);
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT32);
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ANULL);
+    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval;
+    private boolean metNull;
+    private int cnt;
+    private DataOutput out;
+
+    public CountAggregateFunction(ICopyEvaluatorFactory[] args, IDataOutputProvider output) throws AlgebricksException {
+        eval = args[0].createEvaluator(inputVal);
+        out = output.getDataOutput();
+    }
+
+    @Override
+    public void init() {
+        cnt = 0;
+        metNull = false;
+    }
+
+    @Override
+    public void step(IFrameTupleReference tuple) throws AlgebricksException {
+        inputVal.reset();
+        eval.evaluate(tuple);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]);
+        // Ignore SYSTEM_NULL.
+        if (typeTag == ATypeTag.NULL) {
+            metNull = true;
+        } else {
+            cnt++;
+        }
+    }
+
+    @Override
+    public void finish() throws AlgebricksException {
+        try {
+            if (metNull) {
+                nullSerde.serialize(ANull.NULL, out);
+            } else {
+                result.setValue(cnt);
+                int32Serde.serialize(result, out);
+            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    @Override
+    public void finishPartial() throws AlgebricksException {
+        finish();
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
index dee94ec..d262ef4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
 import java.io.DataOutput;
@@ -6,8 +21,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
@@ -17,6 +31,9 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -26,52 +43,61 @@
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.AccessibleByteArrayEval;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory.ClosedRecordConstructorEval;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class GlobalAvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-global-avg",
-            1, true);
-    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
-    private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new GlobalAvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GLOBAL_AVG;
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         unionList.add(BuiltinType.ADOUBLE);
-        final ARecordType recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+        ARecordType tmpRecType;
+        try {
+            tmpRecType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                    new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+        } catch (AsterixException e) {
+            throw new AlgebricksException(e);
+        }
 
-        return new IAggregateFunctionFactory() {
+        final ARecordType recType = tmpRecType;
+
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
 
-                return new IAggregateFunction() {
+                return new ICopyAggregateFunction() {
 
                     private DataOutput out = provider.getDataOutput();
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = args[0].createEvaluator(inputVal);
                     private double globalSum;
                     private int globalCount;
                     private AMutableDouble aDouble = new AMutableDouble(0);
@@ -82,10 +108,10 @@
                     private DataOutput sumBytesOutput = new DataOutputStream(sumBytes);
                     private ByteArrayAccessibleOutputStream countBytes = new ByteArrayAccessibleOutputStream();
                     private DataOutput countBytesOutput = new DataOutputStream(countBytes);
-                    private IEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
-                    private IEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
+                    private ICopyEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
+                    private ICopyEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
                     private ClosedRecordConstructorEval recordEval = new ClosedRecordConstructorEval(recType,
-                            new IEvaluator[] { evalSum, evalCount }, avgBytes, out);
+                            new ICopyEvaluator[] { evalSum, evalCount }, avgBytes, out);
 
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -109,19 +135,41 @@
                     public void step(IFrameTupleReference tuple) throws AlgebricksException {
                         inputVal.reset();
                         eval.evaluate(tuple);
-                        byte[] serBytes = inputVal.getBytes();
-                        if (serBytes[0] == SER_NULL_TYPE_TAG)
-                            metNull = true;
-                        if (serBytes[0] != SER_RECORD_TYPE_TAG) {
-                            throw new AlgebricksException("Global-Avg is not defined for values of type "
-                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]));
+                        byte[] serBytes = inputVal.getByteArray();
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]);
+                        switch (typeTag) {
+                            case NULL: {
+                                metNull = true;
+                                break;
+                            }
+                            case SYSTEM_NULL: {
+                                // Ignore and return.
+                                return;
+                            }
+                            case RECORD: {
+                                // Expected.
+                                break;
+                            }
+                            default: {
+                                throw new AlgebricksException("Global-Avg is not defined for values of type "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]));
+                            }
                         }
-                        int offset1 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 0, 1, false);
+
+                        // The record length helps us determine whether the input record fields are nullable.
+                        int recordLength = ARecordSerializerDeserializer.getRecordLength(serBytes, 1);
+                        int nullBitmapSize = 1;
+                        if (recordLength == 29) {
+                            nullBitmapSize = 0;
+                        }
+                        int offset1 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 0, nullBitmapSize,
+                                false);
                         if (offset1 == 0) // the sum is null
                             metNull = true;
                         else
                             globalSum += ADoubleSerializerDeserializer.getDouble(serBytes, offset1);
-                        int offset2 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 1, 1, false);
+                        int offset2 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 1, nullBitmapSize,
+                                false);
                         if (offset2 != 0) // the count is not null
                             globalCount += AInt32SerializerDeserializer.getInt(serBytes, offset2);
 
@@ -129,43 +177,35 @@
 
                     @Override
                     public void finish() throws AlgebricksException {
-                        if (globalCount == 0) {
-                            GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
-                        } else {
-                            try {
-                                if (metNull)
-                                    nullSerde.serialize(ANull.NULL, out);
-                                else {
-                                    aDouble.setValue(globalSum / globalCount);
-                                    doubleSerde.serialize(aDouble, out);
-                                }
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                        try {
+                            if (globalCount == 0 || metNull)
+                                nullSerde.serialize(ANull.NULL, out);
+                            else {
+                                aDouble.setValue(globalSum / globalCount);
+                                doubleSerde.serialize(aDouble, out);
                             }
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
 
                     @Override
                     public void finishPartial() throws AlgebricksException {
-                        if (globalCount == 0) {
-                            GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
-                        } else {
-                            try {
-                                if (metNull) {
-                                    sumBytes.reset();
-                                    nullSerde.serialize(ANull.NULL, sumBytesOutput);
-                                } else {
-                                    sumBytes.reset();
-                                    aDouble.setValue(globalSum);
-                                    doubleSerde.serialize(aDouble, sumBytesOutput);
-                                }
-                                countBytes.reset();
-                                aInt32.setValue(globalCount);
-                                intSerde.serialize(aInt32, countBytesOutput);
-                                recordEval.evaluate(null);
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                        try {
+                            if (metNull || globalCount == 0) {
+                                sumBytes.reset();
+                                nullSerde.serialize(ANull.NULL, sumBytesOutput);
+                            } else {
+                                sumBytes.reset();
+                                aDouble.setValue(globalSum);
+                                doubleSerde.serialize(aDouble, sumBytesOutput);
                             }
+                            countBytes.reset();
+                            aInt32.setValue(globalCount);
+                            intSerde.serialize(aInt32, countBytesOutput);
+                            recordEval.evaluate(null);
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
                 };
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
index 50debf6..5400d78 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
 import java.io.DataOutput;
@@ -6,8 +21,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -20,6 +34,9 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
@@ -29,52 +46,63 @@
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.AccessibleByteArrayEval;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory.ClosedRecordConstructorEval;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class LocalAvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-local-avg",
-            1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LocalAvgAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LOCAL_AVG;
     }
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
 
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
 
                 List<IAType> unionList = new ArrayList<IAType>();
                 unionList.add(BuiltinType.ANULL);
                 unionList.add(BuiltinType.ADOUBLE);
-                final ARecordType recType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
-                        new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+                ARecordType tmpRecType;
+                try {
+                    tmpRecType = new ARecordType(null, new String[] { "sum", "count" }, new IAType[] {
+                            new AUnionType(unionList, "OptionalDouble"), BuiltinType.AINT32 }, false);
+                } catch (AsterixException e) {
+                    throw new AlgebricksException(e);
+                }
 
-                return new IAggregateFunction() {
+                final ARecordType recType = tmpRecType;
+
+                return new ICopyAggregateFunction() {
 
                     private DataOutput out = provider.getDataOutput();
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval = args[0].createEvaluator(inputVal);
+                    private ATypeTag aggType;
                     private double sum;
                     private int count;
 
@@ -83,10 +111,10 @@
                     private DataOutput sumBytesOutput = new DataOutputStream(sumBytes);
                     private ByteArrayAccessibleOutputStream countBytes = new ByteArrayAccessibleOutputStream();
                     private DataOutput countBytesOutput = new DataOutputStream(countBytes);
-                    private IEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
-                    private IEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
+                    private ICopyEvaluator evalSum = new AccessibleByteArrayEval(avgBytes.getDataOutput(), sumBytes);
+                    private ICopyEvaluator evalCount = new AccessibleByteArrayEval(avgBytes.getDataOutput(), countBytes);
                     private ClosedRecordConstructorEval recordEval = new ClosedRecordConstructorEval(recType,
-                            new IEvaluator[] { evalSum, evalCount }, avgBytes, out);
+                            new ICopyEvaluator[] { evalSum, evalCount }, avgBytes, out);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ADOUBLE);
@@ -98,90 +126,95 @@
                             .getSerializerDeserializer(BuiltinType.ANULL);
                     private AMutableDouble aDouble = new AMutableDouble(0);
                     private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private boolean metNull;
 
                     @Override
                     public void init() {
+                        aggType = ATypeTag.SYSTEM_NULL;
                         sum = 0.0;
                         count = 0;
-                        metNull = false;
                     }
 
                     @Override
                     public void step(IFrameTupleReference tuple) throws AlgebricksException {
                         inputVal.reset();
                         eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
-                            ++count;
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT16: {
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT32: {
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT64: {
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute LOCAL-AVG for values of type "
-                                            + typeTag);
-                                }
-                            }
-                            inputVal.reset();
+                        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                                .deserialize(inputVal.getByteArray()[0]);
+                        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+                            aggType = ATypeTag.NULL;
+                            return;
+                        } else if (aggType == ATypeTag.SYSTEM_NULL) {
+                            aggType = typeTag;
+                        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+                            throw new AlgebricksException("Unexpected type " + typeTag
+                                    + " in aggregation input stream. Expected type " + aggType + ".");
                         }
+                        if (typeTag != ATypeTag.SYSTEM_NULL) {
+                            ++count;
+                        }
+                        switch (typeTag) {
+                            case INT8: {
+                                byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT16: {
+                                short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT32: {
+                                int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case INT64: {
+                                long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case FLOAT: {
+                                float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case DOUBLE: {
+                                double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
+                                sum += val;
+                                break;
+                            }
+                            case NULL: {
+                                break;
+                            }
+                            default: {
+                                throw new NotImplementedException("Cannot compute LOCAL-AVG for values of type "
+                                        + typeTag);
+                            }
+                        }
+                        inputVal.reset();
                     }
 
                     @Override
                     public void finish() throws AlgebricksException {
-                        if (count == 0) {
-                            if (GlobalConfig.DEBUG) {
-                                GlobalConfig.ASTERIX_LOGGER.finest("AVG aggregate ran over empty input.");
+                        try {
+                            if (count == 0) {
+                                out.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+                                return;
                             }
-                        } else {
-                            try {
-                                if (metNull) {
-                                    sumBytes.reset();
-                                    nullSerde.serialize(ANull.NULL, sumBytesOutput);
-                                } else {
-                                    sumBytes.reset();
-                                    aDouble.setValue(sum);
-                                    doubleSerde.serialize(aDouble, sumBytesOutput);
-                                }
-                                countBytes.reset();
-                                aInt32.setValue(count);
-                                int32Serde.serialize(aInt32, countBytesOutput);
-                                recordEval.evaluate(null);
-                            } catch (IOException e) {
-                                throw new AlgebricksException(e);
+                            if (aggType == ATypeTag.NULL) {
+                                sumBytes.reset();
+                                nullSerde.serialize(ANull.NULL, sumBytesOutput);
+                            } else {
+                                sumBytes.reset();
+                                aDouble.setValue(sum);
+                                doubleSerde.serialize(aDouble, sumBytesOutput);
                             }
+                            countBytes.reset();
+                            aInt32.setValue(count);
+                            int32Serde.serialize(aInt32, countBytesOutput);
+                            recordEval.evaluate(null);
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
 
@@ -193,5 +226,4 @@
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMaxAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMaxAggregateDescriptor.java
new file mode 100644
index 0000000..59287d5
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMaxAggregateDescriptor.java
@@ -0,0 +1,43 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class LocalMaxAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-local-max",
+            1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LocalMaxAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    @Override
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        return new ICopyAggregateFunctionFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+                    throws AlgebricksException {
+                return new MinMaxAggregateFunction(args, provider, false, true);
+            }
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMinAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMinAggregateDescriptor.java
new file mode 100644
index 0000000..ca32e2f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalMinAggregateDescriptor.java
@@ -0,0 +1,43 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class LocalMinAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-local-min",
+            1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LocalMinAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    @Override
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        return new ICopyAggregateFunctionFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+                    throws AlgebricksException {
+                return new MinMaxAggregateFunction(args, provider, true, true);
+            }
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalSumAggregateDescriptor.java
new file mode 100644
index 0000000..c133e09
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalSumAggregateDescriptor.java
@@ -0,0 +1,43 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class LocalSumAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-local-sum",
+            1);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LocalSumAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    @Override
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        return new ICopyAggregateFunctionFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+                    throws AlgebricksException {
+                return new SumAggregateFunction(args, provider, true);
+            };
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
index cf4cb4c..4084b42 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
@@ -1,206 +1,41 @@
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
-import java.io.DataOutput;
-import java.io.IOException;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class MaxAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-max", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new MaxAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.MAX;
     }
 
-    @SuppressWarnings("unchecked")
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
-
-                return new IAggregateFunction() {
-
-                    private DataOutput out = provider.getDataOutput();
-                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
-                    private boolean metInt8s, metInt16s, metInt32s, metInt64s, metFloats, metDoubles, metNull;
-
-                    private short shortVal = Short.MIN_VALUE;
-                    private int intVal = Integer.MIN_VALUE;
-                    private long longVal = Long.MIN_VALUE;
-                    private float floatVal = Float.MIN_VALUE;
-                    private double doubleVal = Double.MIN_VALUE;
-
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private ISerializerDeserializer serde;
-
-                    @Override
-                    public void init() {
-                        shortVal = Short.MIN_VALUE;
-                        intVal = Integer.MIN_VALUE;
-                        longVal = Long.MIN_VALUE;
-                        floatVal = Float.MIN_VALUE;
-                        doubleVal = Double.MIN_VALUE;
-
-                        metInt8s = false;
-                        metInt16s = false;
-                        metInt32s = false;
-                        metInt64s = false;
-                        metFloats = false;
-                        metDoubles = false;
-                        metNull = false;
-                    }
-
-                    @Override
-                    public void step(IFrameTupleReference tuple) throws AlgebricksException {
-                        inputVal.reset();
-                        eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    metInt8s = true;
-                                    throw new NotImplementedException("no implementation for int8's comparator");
-                                }
-                                case INT16: {
-                                    metInt16s = true;
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    if (val > shortVal)
-                                        shortVal = val;
-                                    throw new NotImplementedException("no implementation for int16's comparator");
-                                }
-                                case INT32: {
-                                    metInt32s = true;
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    if (val > intVal)
-                                        intVal = val;
-                                    break;
-                                }
-                                case INT64: {
-                                    metInt64s = true;
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    if (val > longVal)
-                                        longVal = val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    metFloats = true;
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    if (val > floatVal)
-                                        floatVal = val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    metDoubles = true;
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    if (val > doubleVal)
-                                        doubleVal = val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute SUM for values of type "
-                                            + typeTag);
-                                }
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void finish() throws AlgebricksException {
-                        try {
-                            if (metNull) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ANULL);
-                                serde.serialize(ANull.NULL, out);
-                            } else if (metDoubles) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(doubleVal);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloats) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue(floatVal);
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue(longVal);
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue(intVal);
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue(shortVal);
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8s) {
-                                throw new NotImplementedException("no implementation for int8's comparator");
-                            } else {
-                                GlobalConfig.ASTERIX_LOGGER.fine("SUM aggregate ran over empty input.");
-                            }
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-
-                    }
-
-                    @Override
-                    public void finishPartial() throws AlgebricksException {
-                        finish();
-                    }
-                };
+                return new MinMaxAggregateFunction(args, provider, false, false);
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
index 8ef204b..001386d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
@@ -1,206 +1,41 @@
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
-import java.io.DataOutput;
-import java.io.IOException;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class MinAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-min", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new MinAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.MIN;
     }
 
-    @SuppressWarnings("unchecked")
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
-
-                return new IAggregateFunction() {
-
-                    private DataOutput out = provider.getDataOutput();
-                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
-                    private boolean metInt8s, metInt16s, metInt32s, metInt64s, metFloats, metDoubles, metNull;
-
-                    private short shortVal = Short.MAX_VALUE;
-                    private int intVal = Integer.MAX_VALUE;
-                    private long longVal = Long.MAX_VALUE;
-                    private float floatVal = Float.MAX_VALUE;
-                    private double doubleVal = Double.MAX_VALUE;
-
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private ISerializerDeserializer serde;
-
-                    @Override
-                    public void init() {
-                        shortVal = Short.MAX_VALUE;
-                        intVal = Integer.MAX_VALUE;
-                        longVal = Long.MAX_VALUE;
-                        floatVal = Float.MAX_VALUE;
-                        doubleVal = Double.MAX_VALUE;
-
-                        metInt8s = false;
-                        metInt16s = false;
-                        metInt32s = false;
-                        metInt64s = false;
-                        metFloats = false;
-                        metDoubles = false;
-                        metNull = false;
-                    }
-
-                    @Override
-                    public void step(IFrameTupleReference tuple) throws AlgebricksException {
-                        inputVal.reset();
-                        eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    metInt8s = true;
-                                    throw new NotImplementedException("no implementation for int8's comparator");
-                                }
-                                case INT16: {
-                                    metInt16s = true;
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    if (val < shortVal)
-                                        shortVal = val;
-                                    throw new NotImplementedException("no implementation for int16's comparator");
-                                }
-                                case INT32: {
-                                    metInt32s = true;
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    if (val < intVal)
-                                        intVal = val;
-                                    break;
-                                }
-                                case INT64: {
-                                    metInt64s = true;
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    if (val < longVal)
-                                        longVal = val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    metFloats = true;
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    if (val < floatVal)
-                                        floatVal = val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    metDoubles = true;
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    if (val < doubleVal)
-                                        doubleVal = val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute SUM for values of type "
-                                            + typeTag);
-                                }
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void finish() throws AlgebricksException {
-                        try {
-                            if (metNull) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ANULL);
-                                serde.serialize(ANull.NULL, out);
-                            } else if (metDoubles) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(doubleVal);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloats) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue(floatVal);
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue(longVal);
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue(intVal);
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue(shortVal);
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8s) {
-                                throw new NotImplementedException("no implementation for int8's comparator");
-                            } else {
-                                GlobalConfig.ASTERIX_LOGGER.fine("SUM aggregate ran over empty input.");
-                            }
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-
-                    }
-
-                    @Override
-                    public void finishPartial() throws AlgebricksException {
-                        finish();
-                    }
-                };
+                return new MinMaxAggregateFunction(args, provider, true, false);
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinMaxAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinMaxAggregateFunction.java
new file mode 100644
index 0000000..bc3508f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinMaxAggregateFunction.java
@@ -0,0 +1,106 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class MinMaxAggregateFunction implements ICopyAggregateFunction {
+    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage outputVal = new ArrayBackedValueStorage();
+    private DataOutput out;
+    private ICopyEvaluator eval;
+    private ATypeTag aggType;
+    private IBinaryComparator cmp;
+    private final boolean isMin;
+    private final boolean isLocalAgg;
+
+    public MinMaxAggregateFunction(ICopyEvaluatorFactory[] args, IDataOutputProvider provider, boolean isMin,
+            boolean isLocalAgg) throws AlgebricksException {
+        out = provider.getDataOutput();
+        eval = args[0].createEvaluator(inputVal);
+        this.isMin = isMin;
+        this.isLocalAgg = isLocalAgg;
+    }
+
+    @Override
+    public void init() {
+        aggType = ATypeTag.SYSTEM_NULL;
+        outputVal.reset();
+    }
+
+    @Override
+    public void step(IFrameTupleReference tuple) throws AlgebricksException {
+        inputVal.reset();
+        eval.evaluate(tuple);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]);
+        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+            aggType = ATypeTag.NULL;
+            return;
+        }
+        if (aggType == ATypeTag.SYSTEM_NULL) {
+            if (typeTag == ATypeTag.SYSTEM_NULL) {
+                // Ignore.
+                return;
+            }
+            // First value encountered. Set type, comparator, and initial value.
+            aggType = typeTag;
+            // Set comparator.
+            IBinaryComparatorFactory cmpFactory = AqlBinaryComparatorFactoryProvider.INSTANCE
+                    .getBinaryComparatorFactory(aggType, isMin);
+            cmp = cmpFactory.createBinaryComparator();
+            // Initialize min value.
+            outputVal.assign(inputVal);
+        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+            throw new AlgebricksException("Unexpected type " + typeTag + " in aggregation input stream. Expected type "
+                    + aggType + ".");
+        }
+        if (cmp.compare(inputVal.getByteArray(), inputVal.getStartOffset(), inputVal.getLength(),
+                outputVal.getByteArray(), outputVal.getStartOffset(), outputVal.getLength()) < 0) {
+            outputVal.assign(inputVal);
+        }
+    }
+
+    @Override
+    public void finish() throws AlgebricksException {
+        try {
+            switch (aggType) {
+                case NULL: {
+                    out.writeByte(ATypeTag.NULL.serialize());
+                    break;
+                }
+                case SYSTEM_NULL: {
+                    // Empty stream. For local agg return system null. For global agg return null.
+                    if (isLocalAgg) {
+                        out.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+                    } else {
+                        out.writeByte(ATypeTag.NULL.serialize());
+                    }
+                    break;
+                }
+                default: {
+                    out.write(outputVal.getByteArray(), outputVal.getStartOffset(), outputVal.getLength());
+                    break;
+                }
+            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    @Override
+    public void finishPartial() throws AlgebricksException {
+        finish();
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
index e60c4e9..bb60ab4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
@@ -1,199 +1,41 @@
 package edu.uci.ics.asterix.runtime.aggregates.std;
 
-import java.io.DataOutput;
-import java.io.IOException;
-
-import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class SumAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-sum", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SumAggregateDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUM;
     }
 
-    @SuppressWarnings("unchecked")
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
-
-                return new IAggregateFunction() {
-
-                    private DataOutput out = provider.getDataOutput();
-                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(inputVal);
-                    private boolean metInt8s, metInt16s, metInt32s, metInt64s, metFloats, metDoubles, metNull;
-                    private double sum;
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    private ISerializerDeserializer serde;
-
-                    @Override
-                    public void init() {
-                        metInt8s = false;
-                        metInt16s = false;
-                        metInt32s = false;
-                        metInt64s = false;
-                        metFloats = false;
-                        metDoubles = false;
-                        metNull = false;
-                        sum = 0.0;
-                    }
-
-                    @Override
-                    public void step(IFrameTupleReference tuple) throws AlgebricksException {
-                        inputVal.reset();
-                        eval.evaluate(tuple);
-                        if (inputVal.getLength() > 0) {
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getBytes()[0]);
-                            switch (typeTag) {
-                                case INT8: {
-                                    metInt8s = true;
-                                    byte val = AInt8SerializerDeserializer.getByte(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT16: {
-                                    metInt16s = true;
-                                    short val = AInt16SerializerDeserializer.getShort(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT32: {
-                                    metInt32s = true;
-                                    int val = AInt32SerializerDeserializer.getInt(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case INT64: {
-                                    metInt64s = true;
-                                    long val = AInt64SerializerDeserializer.getLong(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case FLOAT: {
-                                    metFloats = true;
-                                    float val = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case DOUBLE: {
-                                    metDoubles = true;
-                                    double val = ADoubleSerializerDeserializer.getDouble(inputVal.getBytes(), 1);
-                                    sum += val;
-                                    break;
-                                }
-                                case NULL: {
-                                    metNull = true;
-                                    break;
-                                }
-                                default: {
-                                    throw new NotImplementedException("Cannot compute SUM for values of type "
-                                            + typeTag);
-                                }
-                            }
-                        }
-                    }
-
-                    @Override
-                    public void finish() throws AlgebricksException {
-                        try {
-                            if (metNull) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ANULL);
-                                serde.serialize(ANull.NULL, out);
-                            } else if (metDoubles) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(sum);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloats) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue((float) sum);
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue((long) sum);
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue((int) sum);
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) sum);
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8s) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) sum);
-                                serde.serialize(aInt8, out);
-                            } else {
-                                GlobalConfig.ASTERIX_LOGGER.fine("SUM aggregate ran over empty input.");
-                            }
-
-                        } catch (IOException e) {
-                            throw new AlgebricksException(e);
-                        }
-
-                    }
-
-                    @Override
-                    public void finishPartial() throws AlgebricksException {
-                        finish();
-                    }
-                };
-            }
+                return new SumAggregateFunction(args, provider, false);
+            };
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateFunction.java
new file mode 100644
index 0000000..d0e82ce
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateFunction.java
@@ -0,0 +1,192 @@
+package edu.uci.ics.asterix.runtime.aggregates.std;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SumAggregateFunction implements ICopyAggregateFunction {
+    private DataOutput out;
+    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval;
+    private double sum;
+    private ATypeTag aggType;
+    private AMutableDouble aDouble = new AMutableDouble(0);
+    private AMutableFloat aFloat = new AMutableFloat(0);
+    private AMutableInt64 aInt64 = new AMutableInt64(0);
+    private AMutableInt32 aInt32 = new AMutableInt32(0);
+    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer serde;
+
+    private final boolean isLocalAgg;
+
+    public SumAggregateFunction(ICopyEvaluatorFactory[] args, IDataOutputProvider provider, boolean isLocalAgg)
+            throws AlgebricksException {
+        out = provider.getDataOutput();
+        eval = args[0].createEvaluator(inputVal);
+        this.isLocalAgg = isLocalAgg;
+    }
+
+    @Override
+    public void init() {
+        aggType = ATypeTag.SYSTEM_NULL;
+        sum = 0.0;
+    }
+
+    @Override
+    public void step(IFrameTupleReference tuple) throws AlgebricksException {
+        inputVal.reset();
+        eval.evaluate(tuple);
+        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]);
+        if (typeTag == ATypeTag.NULL || aggType == ATypeTag.NULL) {
+            aggType = ATypeTag.NULL;
+            return;
+        } else if (aggType == ATypeTag.SYSTEM_NULL) {
+            aggType = typeTag;
+        } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
+            throw new AlgebricksException("Unexpected type " + typeTag
+                    + " in aggregation input stream. Expected type " + aggType + ".");
+        }
+        switch (typeTag) {
+            case INT8: {
+                byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT16: {
+                short val = AInt16SerializerDeserializer.getShort(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT32: {
+                int val = AInt32SerializerDeserializer.getInt(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case INT64: {
+                long val = AInt64SerializerDeserializer.getLong(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case FLOAT: {
+                float val = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case DOUBLE: {
+                double val = ADoubleSerializerDeserializer.getDouble(inputVal.getByteArray(), 1);
+                sum += val;
+                break;
+            }
+            case NULL: {
+                break;
+            }
+            case SYSTEM_NULL: {
+                // For global aggregates simply ignore system null here,
+                // but if all input value are system null, then we should return
+                // null in finish().
+                if (isLocalAgg) {
+                    throw new AlgebricksException("Type SYSTEM_NULL encountered in local aggregate.");
+                }
+                break;
+            }
+            default: {
+                throw new NotImplementedException("Cannot compute SUM for values of type " + typeTag + ".");
+            }
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void finish() throws AlgebricksException {
+        try {
+            switch (aggType) {
+                case INT8: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT8);
+                    aInt8.setValue((byte) sum);
+                    serde.serialize(aInt8, out);
+                    break;
+                }
+                case INT16: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT16);
+                    aInt16.setValue((short) sum);
+                    serde.serialize(aInt16, out);
+                    break;
+                }
+                case INT32: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT32);
+                    aInt32.setValue((int) sum);
+                    serde.serialize(aInt32, out);
+                    break;
+                }
+                case INT64: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AINT64);
+                    aInt64.setValue((long) sum);
+                    serde.serialize(aInt64, out);
+                    break;
+                }
+                case FLOAT: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AFLOAT);
+                    aFloat.setValue((float) sum);
+                    serde.serialize(aFloat, out);
+                    break;
+                }
+                case DOUBLE: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ADOUBLE);
+                    aDouble.setValue(sum);
+                    serde.serialize(aDouble, out);
+                    break;
+                }
+                case NULL: {
+                    serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ANULL);
+                    serde.serialize(ANull.NULL, out);
+                    break;
+                }
+                case SYSTEM_NULL: {
+                    // Empty stream. For local agg return system null. For global agg return null.
+                    if (isLocalAgg) {
+                        out.writeByte(ATypeTag.SYSTEM_NULL.serialize());
+                    } else {
+                        serde = AqlSerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ANULL);
+                        serde.serialize(ANull.NULL, out);
+                    }
+                    break;
+                }
+            }
+        } catch (IOException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    @Override
+    public void finishPartial() throws AlgebricksException {
+        finish();
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/EmptyStreamAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/EmptyStreamAggregateDescriptor.java
new file mode 100644
index 0000000..587a113
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/EmptyStreamAggregateDescriptor.java
@@ -0,0 +1,89 @@
+package edu.uci.ics.asterix.runtime.aggregates.stream;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class EmptyStreamAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "empty-stream", 0);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EmptyStreamAggregateDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
+            throws AlgebricksException {
+        return new ICopyAggregateFunctionFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+                    throws AlgebricksException {
+
+                return new ICopyAggregateFunction() {
+
+                    private DataOutput out = provider.getDataOutput();
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+                    boolean res = true;
+
+                    @Override
+                    public void init() throws AlgebricksException {
+                        res = true;
+                    }
+
+                    @Override
+                    public void step(IFrameTupleReference tuple) throws AlgebricksException {
+                        res = false;
+                    }
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void finish() throws AlgebricksException {
+                        ABoolean b = res ? ABoolean.TRUE : ABoolean.FALSE;
+                        try {
+                            serde.serialize(b, out);
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+
+                    @Override
+                    public void finishPartial() throws AlgebricksException {
+                        finish();
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
index 0200a47..f7ddff0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
@@ -2,43 +2,48 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.aggregates.base.AbstractAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyAggregateFunctionFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class NonEmptyStreamAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
 
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "non-empty-stream", 0, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NonEmptyStreamAggregateDescriptor();
+        }
+    };
 
     @Override
-    public IAggregateFunctionFactory createAggregateFunctionFactory(IEvaluatorFactory[] args)
+    public ICopyAggregateFunctionFactory createAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IAggregateFunctionFactory() {
+        return new ICopyAggregateFunctionFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
 
-                return new IAggregateFunction() {
+                return new ICopyAggregateFunction() {
 
                     private DataOutput out = provider.getDataOutput();
-                    @SuppressWarnings("unchecked")
+                    @SuppressWarnings("rawtypes")
                     private ISerializerDeserializer serde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
 
@@ -76,7 +81,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NON_EMPTY_STREAM;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilter.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilter.java
new file mode 100644
index 0000000..3f4f5ca
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilter.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.runtime.base;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspector;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.data.std.api.IPointable;
+import edu.uci.ics.hyracks.data.std.primitive.VoidPointable;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.ITupleFilter;
+
+public class AsterixTupleFilter implements ITupleFilter {
+    private final IBinaryBooleanInspector boolInspector;
+    private final IScalarEvaluator eval;
+    private final IPointable p = VoidPointable.FACTORY.createPointable();
+
+    public AsterixTupleFilter(IHyracksTaskContext ctx, IScalarEvaluatorFactory evalFactory,
+            IBinaryBooleanInspector boolInspector) throws AlgebricksException {
+        this.boolInspector = boolInspector;
+        eval = evalFactory.createScalarEvaluator(ctx);
+    }
+
+    @Override
+    public boolean accept(IFrameTupleReference tuple) throws Exception {
+        eval.evaluate(tuple, p);
+        return boolInspector.getBooleanValue(p.getByteArray(), p.getStartOffset(), p.getLength());
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilterFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilterFactory.java
new file mode 100644
index 0000000..1dd7ba5
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/AsterixTupleFilterFactory.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.runtime.base;
+
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspectorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.storage.am.common.api.ITupleFilter;
+import edu.uci.ics.hyracks.storage.am.common.api.ITupleFilterFactory;
+
+public class AsterixTupleFilterFactory implements ITupleFilterFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private final IBinaryBooleanInspectorFactory boolInspectorFactory;
+    private final IScalarEvaluatorFactory evalFactory;
+
+    public AsterixTupleFilterFactory(IScalarEvaluatorFactory evalFactory,
+            IBinaryBooleanInspectorFactory boolInspectorFactory) throws AlgebricksException {
+        this.evalFactory = evalFactory;
+        this.boolInspectorFactory = boolInspectorFactory;
+    }
+
+    @Override
+    public ITupleFilter createTupleFilter(IHyracksTaskContext ctx) throws Exception {
+        return new AsterixTupleFilter(ctx, evalFactory, boolInspectorFactory.createBinaryBooleanInspector(ctx));
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IAggregateFunctionDynamicDescriptor.java
deleted file mode 100644
index afa2312..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IAggregateFunctionDynamicDescriptor.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package edu.uci.ics.asterix.runtime.base;
-
-import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public interface IAggregateFunctionDynamicDescriptor extends IFunctionDescriptor {
-    public IAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException;
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IRunningAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IRunningAggregateFunctionDynamicDescriptor.java
deleted file mode 100644
index ff01c60..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IRunningAggregateFunctionDynamicDescriptor.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package edu.uci.ics.asterix.runtime.base;
-
-
-import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IRunningAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public interface IRunningAggregateFunctionDynamicDescriptor extends IFunctionDescriptor {
-    public IRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException;
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IScalarFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IScalarFunctionDynamicDescriptor.java
deleted file mode 100644
index ed5c0aee2..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IScalarFunctionDynamicDescriptor.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package edu.uci.ics.asterix.runtime.base;
-
-
-import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public interface IScalarFunctionDynamicDescriptor extends IFunctionDescriptor {
-    public IEvaluatorFactory createEvaluatorFactory(IEvaluatorFactory[] args) throws AlgebricksException;
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/ISerializableAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/ISerializableAggregateFunctionDynamicDescriptor.java
deleted file mode 100644
index 82e0e29..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/ISerializableAggregateFunctionDynamicDescriptor.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package edu.uci.ics.asterix.runtime.base;
-
-import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.ISerializableAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public interface ISerializableAggregateFunctionDynamicDescriptor extends IFunctionDescriptor {
-    public ISerializableAggregateFunctionFactory createAggregateFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException;
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IUnnestingFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IUnnestingFunctionDynamicDescriptor.java
deleted file mode 100644
index 85b6fe1..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/base/IUnnestingFunctionDynamicDescriptor.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package edu.uci.ics.asterix.runtime.base;
-
-import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-
-public interface IUnnestingFunctionDynamicDescriptor extends IFunctionDescriptor {
-    public IUnnestingFunctionFactory createUnnestingFunctionFactory(final IEvaluatorFactory[] args)
-            throws AlgebricksException;
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java
new file mode 100644
index 0000000..577a1fb
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CircleCenterAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-center", 1);
+    private static final byte SER_CICLE_TAG = ATypeTag.CIRCLE.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CircleCenterAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private final AMutablePoint aPoint = new AMutablePoint(0, 0);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<APoint> pointSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.APOINT);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double cX;
+                            double cY;
+                            if (bytes[0] == SER_CICLE_TAG) {
+                                cX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getCenterPointCoordinateOffset(Coordinate.X));
+                                cY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getCenterPointCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(cX, cY);
+                                pointSerde.serialize(aPoint, out);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                throw new AlgebricksException("get-center does not support the type: " + bytes[0]
+                                        + " It is only implemented for CIRCLE.");
+                            }
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java
new file mode 100644
index 0000000..ffaae9e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CircleRadiusAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-radius", 1);
+    private static final byte SER_CICLE_TAG = ATypeTag.CIRCLE.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CircleRadiusAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private final AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double radius;
+                            if (bytes[0] == SER_CICLE_TAG) {
+                                radius = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getRadiusOffset());
+                                aDouble.setValue(radius);
+                                doubleSerde.serialize(aDouble, out);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                throw new AlgebricksException("get-radius does not support the type: " + bytes[0]
+                                        + " It is only implemented for CIRCLE.");
+                            }
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java
new file mode 100644
index 0000000..d7f87df
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class LineRectanglePolygonAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-points", 1);
+    private static final byte SER_LINE_TAG = ATypeTag.LINE.serialize();
+    private static final byte SER_RECTANGLE_TAG = ATypeTag.RECTANGLE.serialize();
+    private static final byte SER_POLYGON_TAG = ATypeTag.POLYGON.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LineRectanglePolygonAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private final OrderedListBuilder listBuilder = new OrderedListBuilder();
+                    private final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+                    private final AOrderedListType pointListType = new AOrderedListType(BuiltinType.APOINT, null);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private final AMutablePoint aPoint = new AMutablePoint(0, 0);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<APoint> pointSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.APOINT);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            if (bytes[0] == SER_LINE_TAG) {
+                                listBuilder.reset(pointListType);
+
+                                inputVal.reset();
+                                double startX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.X));
+                                double startY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(startX, startY);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                                inputVal.reset();
+                                double endX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X));
+                                double endY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(endX, endY);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+                                listBuilder.write(out, true);
+
+                            } else if (bytes[0] == SER_RECTANGLE_TAG) {
+                                listBuilder.reset(pointListType);
+
+                                inputVal.reset();
+                                double x1 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getBottomLeftCoordinateOffset(Coordinate.X));
+                                double y1 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getBottomLeftCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(x1, y1);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                                inputVal.reset();
+                                double x2 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getUpperRightCoordinateOffset(Coordinate.X));
+                                double y2 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getUpperRightCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(x2, y2);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+                                listBuilder.write(out, true);
+
+                            } else if (bytes[0] == SER_POLYGON_TAG) {
+                                int numOfPoints = AInt16SerializerDeserializer.getShort(bytes,
+                                        APolygonSerializerDeserializer.getNumberOfPointsOffset());
+
+                                if (numOfPoints < 3) {
+                                    throw new HyracksDataException("Polygon must have at least 3 points.");
+                                }
+                                listBuilder.reset(pointListType);
+                                for (int i = 0; i < numOfPoints; ++i) {
+                                    inputVal.reset();
+                                    double x = ADoubleSerializerDeserializer.getDouble(bytes,
+                                            APolygonSerializerDeserializer.getCoordinateOffset(i, Coordinate.X));
+                                    double y = ADoubleSerializerDeserializer.getDouble(bytes,
+                                            APolygonSerializerDeserializer.getCoordinateOffset(i, Coordinate.Y));
+                                    aPoint.setValue(x, y);
+                                    pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                    listBuilder.addItem(inputVal);
+                                }
+                                listBuilder.write(out, true);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                throw new AlgebricksException("get-points does not support the type: " + bytes[0]
+                                        + " It is only implemented for LINE, RECTANGLE, or POLYGON.");
+                            }
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java
new file mode 100644
index 0000000..7fcfd20
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class PointXCoordinateAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-x", 1);
+    private static final byte SER_POINT_TAG = ATypeTag.POINT.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PointXCoordinateAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private final AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double x;
+                            if (bytes[0] == SER_POINT_TAG) {
+                                x = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
+                                aDouble.setValue(x);
+                                doubleSerde.serialize(aDouble, out);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                throw new AlgebricksException("get-x does not support the type: " + bytes[0]
+                                        + " It is only implemented for POINT.");
+                            }
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java
new file mode 100644
index 0000000..1c47efa
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class PointYCoordinateAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-y", 1);
+    private static final byte SER_POINT_TAG = ATypeTag.POINT.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PointYCoordinateAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    private final AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double y;
+                            if (bytes[0] == SER_POINT_TAG) {
+                                y = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
+                                aDouble.setValue(y);
+                                doubleSerde.serialize(aDouble, out);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                throw new AlgebricksException("get-y does not support the type: " + bytes[0]
+                                        + " It is only implemented for POINT.");
+                            }
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalDayAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalDayAccessor.java
new file mode 100644
index 0000000..05391de
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalDayAccessor.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalDayAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "day", 1);
+
+    // allowed input types
+    private static final byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalDayAccessor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationDay(ADurationSerializerDeserializer
+                                        .getDayTime(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_DATE_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1)
+                                        * GregorianCalendarSystem.CHRONON_OF_DAY;
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int year = calSystem.getYear(chrononTimeInMs);
+                            int month = calSystem.getMonthOfYear(chrononTimeInMs, year);
+                            int day = calSystem.getDayOfMonthYear(chrononTimeInMs, year, month);
+
+                            aMutableInt32.setValue(day);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalHourAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalHourAccessor.java
new file mode 100644
index 0000000..eba012f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalHourAccessor.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalHourAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "hour", 1);
+
+    // allowed input types
+    private static final byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalHourAccessor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationHour(ADurationSerializerDeserializer
+                                        .getDayTime(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_TIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1);
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int hour = calSystem.getHourOfDay(chrononTimeInMs);
+
+                            aMutableInt32.setValue(hour);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMillisecondAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMillisecondAccessor.java
new file mode 100644
index 0000000..ecc1a35
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMillisecondAccessor.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalMillisecondAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "millisecond", 1);
+
+    // allowed input types
+    private static final byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalMillisecondAccessor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationMillisecond(ADurationSerializerDeserializer
+                                        .getDayTime(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_TIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1);
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int ms = calSystem.getMillisOfSec(chrononTimeInMs);
+
+                            aMutableInt32.setValue(ms);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMinuteAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMinuteAccessor.java
new file mode 100644
index 0000000..f436016
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMinuteAccessor.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalMinuteAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "minute", 1);
+
+    // allowed input types
+    private static final byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalMinuteAccessor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationMinute(ADurationSerializerDeserializer
+                                        .getDayTime(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_TIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1);
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int min = calSystem.getMinOfHour(chrononTimeInMs);
+
+                            aMutableInt32.setValue(min);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMonthAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMonthAccessor.java
new file mode 100644
index 0000000..fb68f7d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalMonthAccessor.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalMonthAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "month", 1);
+
+    // allowed input types
+    private static final byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalMonthAccessor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationMonth(ADurationSerializerDeserializer
+                                        .getYearMonth(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_DATE_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1)
+                                        * GregorianCalendarSystem.CHRONON_OF_DAY;
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int year = calSystem.getYear(chrononTimeInMs);
+                            int month = calSystem.getMonthOfYear(chrononTimeInMs, year);
+
+                            aMutableInt32.setValue(month);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalSecondAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalSecondAccessor.java
new file mode 100644
index 0000000..3b9ee95
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalSecondAccessor.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalSecondAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "second", 1);
+
+    // allowed input types
+    private static final byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalSecondAccessor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationSecond(ADurationSerializerDeserializer
+                                        .getDayTime(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_TIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1);
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int sec = calSystem.getSecOfMin(chrononTimeInMs);
+
+                            aMutableInt32.setValue(sec);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalYearAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalYearAccessor.java
new file mode 100644
index 0000000..41dacfd
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/TemporalYearAccessor.java
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TemporalYearAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "year", 1);
+
+    // allowed input types
+    private static final byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private static final byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private static final byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+    private static final byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TemporalYearAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private GregorianCalendarSystem calSystem = GregorianCalendarSystem.getInstance();
+
+                    // for output: type integer
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private AMutableInt32 aMutableInt32 = new AMutableInt32(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+
+                            if (bytes[0] == SER_DURATION_TYPE_TAG) {
+                                aMutableInt32.setValue(calSystem.getDurationYear(ADurationSerializerDeserializer
+                                        .getYearMonth(bytes, 1)));
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            }
+
+                            long chrononTimeInMs = 0;
+                            if (bytes[0] == SER_DATE_TYPE_TAG) {
+                                chrononTimeInMs = AInt32SerializerDeserializer.getInt(bytes, 1)
+                                        * GregorianCalendarSystem.CHRONON_OF_DAY;
+                            } else if (bytes[0] == SER_DATETIME_TYPE_TAG) {
+                                chrononTimeInMs = AInt64SerializerDeserializer.getLong(bytes, 1);
+                            } else if (bytes[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            } else if (bytes[0] == SER_STRING_TYPE_TAG) {
+                                int year;
+                                if (UTF8StringPointable.charAt(bytes, 3) == '-') {
+                                    // in case of a negative year
+                                    year = -1
+                                            * ((UTF8StringPointable.charAt(bytes, 4) - '0') * 1000
+                                                    + (UTF8StringPointable.charAt(bytes, 5) - '0') * 100
+                                                    + (UTF8StringPointable.charAt(bytes, 6) - '0') * 10 + (UTF8StringPointable
+                                                    .charAt(bytes, 7) - '0'));
+                                } else {
+                                    year = (UTF8StringPointable.charAt(bytes, 3) - '0') * 1000
+                                            + (UTF8StringPointable.charAt(bytes, 4) - '0') * 100
+                                            + (UTF8StringPointable.charAt(bytes, 5) - '0') * 10
+                                            + (UTF8StringPointable.charAt(bytes, 6) - '0');
+                                }
+                                aMutableInt32.setValue(year);
+                                intSerde.serialize(aMutableInt32, out);
+                                return;
+                            } else {
+                                throw new AlgebricksException("Inapplicable input type: " + bytes[0]);
+                            }
+
+                            int year = calSystem.getYear(chrononTimeInMs);
+
+                            aMutableInt32.setValue(year);
+                            intSerde.serialize(aMutableInt32, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/base/AbstractScalarFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/base/AbstractScalarFunctionDynamicDescriptor.java
index 06aa928..a2f00ff 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/base/AbstractScalarFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/base/AbstractScalarFunctionDynamicDescriptor.java
@@ -1,9 +1,9 @@
 package edu.uci.ics.asterix.runtime.evaluators.base;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
-import edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractScalarFunctionDynamicDescriptor implements IScalarFunctionDynamicDescriptor {
+public abstract class AbstractScalarFunctionDynamicDescriptor extends AbstractFunctionDescriptor {
 
     private static final long serialVersionUID = 1L;
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
index 0b9aca8..efae5f9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
@@ -17,6 +17,9 @@
     protected int startOff = -1;
     protected IBinaryComparator cmp;
 
+    // Ignore case for strings. Defaults to true.
+    protected final boolean ignoreCase = true;
+
     @Override
     public int compare(IListIterator cmpIter) {
         return cmp.compare(data, pos, -1, cmpIter.getData(), cmpIter.getPos(), -1);
@@ -80,7 +83,16 @@
                 break;
             }
             case STRING: {
-                cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryComparator();
+                if (ignoreCase) {
+                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_LOWERCASE_POINTABLE_INSTANCE
+                            .createBinaryComparator();
+                } else {
+                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryComparator();
+                }
+                break;
+            }
+            default: {
+                cmp = null;
                 break;
             }
         }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AccessibleByteArrayEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AccessibleByteArrayEval.java
index 4a769ba..4e225d0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AccessibleByteArrayEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AccessibleByteArrayEval.java
@@ -4,12 +4,12 @@
 import java.io.DataOutputStream;
 import java.io.IOException;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class AccessibleByteArrayEval implements IEvaluator {
+public class AccessibleByteArrayEval implements ICopyEvaluator {
 
     private DataOutput out;
     private ByteArrayAccessibleOutputStream baaos;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java
new file mode 100644
index 0000000..58cbd07
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.runtime.evaluators.common;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+
+/**
+ * Utility class for accessing serialized unordered and ordered lists. 
+ */
+public class AsterixListAccessor {
+
+	protected byte[] listBytes;
+	protected int start;
+	protected ATypeTag listType;
+	protected ATypeTag itemType;
+	protected int size;
+	
+	public ATypeTag getListType() {
+		return listType;
+	}
+
+	public ATypeTag getItemType() {
+		return itemType;
+	}
+
+	public boolean itemsAreSelfDescribing() {
+		return itemType == ATypeTag.ANY;
+	}
+
+	public void reset(byte[] listBytes, int start) throws AsterixException {
+		this.listBytes = listBytes;
+		this.start = start;
+		listType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start]);
+		if (listType != ATypeTag.UNORDEREDLIST && listType != ATypeTag.ORDEREDLIST) {
+			throw new AsterixException("Unsupported type: " + listType);
+		}
+		itemType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start + 1]);
+		if (listType == ATypeTag.UNORDEREDLIST) {
+			size = AUnorderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
+		} else {
+			size = AOrderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
+		}
+	}
+
+	public int size() {
+		return size;
+	}
+	
+	public int getItemOffset(int itemIndex) throws AsterixException {
+		if (listType == ATypeTag.UNORDEREDLIST) {
+			return AUnorderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
+		} else {
+			return AOrderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
+		}
+	}
+	
+	public int getItemLength(int itemOffset) throws AsterixException {
+		ATypeTag itemType = getItemType(itemOffset);
+		return NonTaggedFormatUtil.getFieldValueLength(listBytes, itemOffset, itemType, itemsAreSelfDescribing());
+	}
+	
+	public ATypeTag getItemType(int itemOffset) throws AsterixException {
+		if (itemType == ATypeTag.ANY) {
+			return EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[itemOffset]);
+		} else {
+			return itemType;
+		}
+	}
+	
+	public void writeItem(int itemIndex, DataOutput dos) throws AsterixException, IOException {
+		int itemOffset = getItemOffset(itemIndex);
+		int itemLength = getItemLength(itemOffset);
+		if (itemsAreSelfDescribing()) {
+			++itemLength;
+		} else {
+			dos.writeByte(itemType.serialize());
+		}
+		dos.write(listBytes, itemOffset, itemLength);
+	}
+	
+	public byte[] getByteArray() {
+		return listBytes;
+	}
+	
+	public int getStart() {
+		return start;
+	}
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/ClosedRecordConstructorEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/ClosedRecordConstructorEvalFactory.java
index 324fd7a..db3bc40 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/ClosedRecordConstructorEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/ClosedRecordConstructorEvalFactory.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.evaluators.common;
 
 import java.io.DataOutput;
@@ -5,31 +20,32 @@
 
 import edu.uci.ics.asterix.builders.IARecordBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class ClosedRecordConstructorEvalFactory implements IEvaluatorFactory {
+public class ClosedRecordConstructorEvalFactory implements ICopyEvaluatorFactory {
 
     private static final long serialVersionUID = 1L;
 
-    private IEvaluatorFactory[] args;
+    private ICopyEvaluatorFactory[] args;
     private ARecordType recType;
 
-    public ClosedRecordConstructorEvalFactory(IEvaluatorFactory[] args, ARecordType recType) {
+    public ClosedRecordConstructorEvalFactory(ICopyEvaluatorFactory[] args, ARecordType recType) {
         this.args = args;
         this.recType = recType;
     }
 
     @Override
-    public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+    public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
         int n = args.length / 2;
-        IEvaluator[] evalFields = new IEvaluator[n];
+        ICopyEvaluator[] evalFields = new ICopyEvaluator[n];
         ArrayBackedValueStorage fieldValueBuffer = new ArrayBackedValueStorage();
         for (int i = 0; i < n; i++) {
             evalFields[i] = args[2 * i + 1].createEvaluator(fieldValueBuffer);
@@ -38,9 +54,9 @@
         return new ClosedRecordConstructorEval(recType, evalFields, fieldValueBuffer, out);
     }
 
-    public static class ClosedRecordConstructorEval implements IEvaluator {
+    public static class ClosedRecordConstructorEval implements ICopyEvaluator {
 
-        private IEvaluator[] evalFields;
+        private ICopyEvaluator[] evalFields;
         private DataOutput out;
         private IARecordBuilder recBuilder = new RecordBuilder();
         private ARecordType recType;
@@ -48,7 +64,7 @@
         private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
         private boolean first = true;
 
-        public ClosedRecordConstructorEval(ARecordType recType, IEvaluator[] evalFields,
+        public ClosedRecordConstructorEval(ARecordType recType, ICopyEvaluator[] evalFields,
                 ArrayBackedValueStorage fieldValueBuffer, DataOutput out) {
             this.evalFields = evalFields;
             this.fieldValueBuffer = fieldValueBuffer;
@@ -67,13 +83,13 @@
                 for (int i = 0; i < evalFields.length; i++) {
                     fieldValueBuffer.reset();
                     evalFields[i].evaluate(tuple);
-                    if (fieldValueBuffer.getBytes()[0] != SER_NULL_TYPE_TAG) {
+                    if (fieldValueBuffer.getByteArray()[0] != SER_NULL_TYPE_TAG) {
                         recBuilder.addField(i, fieldValueBuffer);
                     }
                 }
                 recBuilder.write(out, true);
-            } catch (IOException ioe) {
-                throw new AlgebricksException(ioe);
+            } catch (IOException | AsterixException e) {
+                throw new AlgebricksException(e);
             }
         }
     }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
index a83cf68..616cbdc 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
@@ -14,33 +14,35 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class CreateMBREvalFactory implements IEvaluatorFactory {
+public class CreateMBREvalFactory implements ICopyEvaluatorFactory {
 
     private static final long serialVersionUID = 1L;
 
-    private IEvaluatorFactory recordEvalFactory;
-    private IEvaluatorFactory dimensionEvalFactory;
-    private IEvaluatorFactory coordinateEvalFactory;
+    private static final byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
 
-    public CreateMBREvalFactory(IEvaluatorFactory recordEvalFactory, IEvaluatorFactory dimensionEvalFactory,
-            IEvaluatorFactory coordinateEvalFactory) {
+    private ICopyEvaluatorFactory recordEvalFactory;
+    private ICopyEvaluatorFactory dimensionEvalFactory;
+    private ICopyEvaluatorFactory coordinateEvalFactory;
+
+    public CreateMBREvalFactory(ICopyEvaluatorFactory recordEvalFactory, ICopyEvaluatorFactory dimensionEvalFactory,
+            ICopyEvaluatorFactory coordinateEvalFactory) {
         this.recordEvalFactory = recordEvalFactory;
         this.dimensionEvalFactory = dimensionEvalFactory;
         this.coordinateEvalFactory = coordinateEvalFactory;
     }
 
     @Override
-    public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-        return new IEvaluator() {
+    public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+        return new ICopyEvaluator() {
 
             private DataOutput out = output.getDataOutput();
 
@@ -48,9 +50,9 @@
             private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
             private ArrayBackedValueStorage outInput2 = new ArrayBackedValueStorage();
 
-            private IEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
-            private IEvaluator eval1 = dimensionEvalFactory.createEvaluator(outInput1);
-            private IEvaluator eval2 = coordinateEvalFactory.createEvaluator(outInput2);
+            private ICopyEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
+            private ICopyEvaluator eval1 = dimensionEvalFactory.createEvaluator(outInput1);
+            private ICopyEvaluator eval2 = coordinateEvalFactory.createEvaluator(outInput2);
 
             @Override
             public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -61,13 +63,19 @@
                 outInput2.reset();
                 eval2.evaluate(tuple);
 
+                // type-check: (Point/Line/Polygon/Circle/Rectangle/Null, Int32, Int32)
+                if (outInput1.getByteArray()[0] != SER_INT32_TYPE_TAG
+                        || outInput2.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                    throw new AlgebricksException("Expects Types: (Point/Line/Polygon/Circle/Rectangle/Null, Int32, Int32).");
+                }
+
                 try {
 
-                    int dimension = AInt32SerializerDeserializer.getInt(outInput1.getBytes(), 1);
-                    int coordinate = AInt32SerializerDeserializer.getInt(outInput2.getBytes(), 1);
+                    int dimension = AInt32SerializerDeserializer.getInt(outInput1.getByteArray(), 1);
+                    int coordinate = AInt32SerializerDeserializer.getInt(outInput2.getByteArray(), 1);
                     double value;
                     if (dimension == 2) {
-                        ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getBytes()[0]);
+                        ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getByteArray()[0]);
                         switch (tag) {
                             case POINT:
                                 switch (coordinate) {
@@ -75,7 +83,7 @@
                                             // for
                                             // max x, and 3 for max y
                                     case 2: {
-                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
 
                                         value = x;
@@ -83,7 +91,7 @@
                                         break;
                                     case 1:
                                     case 3: {
-                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
 
                                         value = y;
@@ -101,9 +109,9 @@
                                     case 0: {
                                         value = Double.MAX_VALUE;
                                         double startX = ADoubleSerializerDeserializer
-                                                .getDouble(outInput0.getBytes(), ALineSerializerDeserializer
+                                                .getDouble(outInput0.getByteArray(), ALineSerializerDeserializer
                                                         .getStartPointCoordinateOffset(Coordinate.X));
-                                        double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X));
 
                                         value = Math.min(Math.min(startX, endX), value);
@@ -112,9 +120,9 @@
                                     case 1: {
                                         value = Double.MAX_VALUE;
                                         double startY = ADoubleSerializerDeserializer
-                                                .getDouble(outInput0.getBytes(), ALineSerializerDeserializer
+                                                .getDouble(outInput0.getByteArray(), ALineSerializerDeserializer
                                                         .getStartPointCoordinateOffset(Coordinate.Y));
-                                        double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y));
 
                                         value = Math.min(Math.min(startY, endY), value);
@@ -123,9 +131,9 @@
                                     case 2: {
                                         value = Double.MIN_VALUE;
                                         double startX = ADoubleSerializerDeserializer
-                                                .getDouble(outInput0.getBytes(), ALineSerializerDeserializer
+                                                .getDouble(outInput0.getByteArray(), ALineSerializerDeserializer
                                                         .getStartPointCoordinateOffset(Coordinate.X));
-                                        double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X));
 
                                         value = Math.max(Math.min(startX, endX), value);
@@ -134,9 +142,9 @@
                                     case 3: {
                                         value = Double.MIN_VALUE;
                                         double startY = ADoubleSerializerDeserializer
-                                                .getDouble(outInput0.getBytes(), ALineSerializerDeserializer
+                                                .getDouble(outInput0.getByteArray(), ALineSerializerDeserializer
                                                         .getStartPointCoordinateOffset(Coordinate.Y));
-                                        double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y));
 
                                         value = Math.max(Math.min(startY, endY), value);
@@ -149,14 +157,14 @@
                                 }
                                 break;
                             case POLYGON:
-                                int numOfPoints = AInt16SerializerDeserializer.getShort(outInput0.getBytes(),
+                                int numOfPoints = AInt16SerializerDeserializer.getShort(outInput0.getByteArray(),
                                         APolygonSerializerDeserializer.getNumberOfPointsOffset());
                                 switch (coordinate) {
                                     case 0: {
                                         value = Double.MAX_VALUE;
                                         for (int i = 0; i < numOfPoints; i++) {
                                             double x = ADoubleSerializerDeserializer
-                                                    .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer
+                                                    .getDouble(outInput0.getByteArray(), APolygonSerializerDeserializer
                                                             .getCoordinateOffset(i, Coordinate.X));
                                             value = Math.min(x, value);
                                         }
@@ -166,7 +174,7 @@
                                         value = Double.MAX_VALUE;
                                         for (int i = 0; i < numOfPoints; i++) {
                                             double y = ADoubleSerializerDeserializer
-                                                    .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer
+                                                    .getDouble(outInput0.getByteArray(), APolygonSerializerDeserializer
                                                             .getCoordinateOffset(i, Coordinate.Y));
                                             value = Math.min(y, value);
                                         }
@@ -176,7 +184,7 @@
                                         value = Double.MIN_VALUE;
                                         for (int i = 0; i < numOfPoints; i++) {
                                             double x = ADoubleSerializerDeserializer
-                                                    .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer
+                                                    .getDouble(outInput0.getByteArray(), APolygonSerializerDeserializer
                                                             .getCoordinateOffset(i, Coordinate.X));
                                             value = Math.max(x, value);
                                         }
@@ -186,7 +194,7 @@
                                         value = Double.MIN_VALUE;
                                         for (int i = 0; i < numOfPoints; i++) {
                                             double y = ADoubleSerializerDeserializer
-                                                    .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer
+                                                    .getDouble(outInput0.getByteArray(), APolygonSerializerDeserializer
                                                             .getCoordinateOffset(i, Coordinate.Y));
                                             value = Math.max(y, value);
                                         }
@@ -201,45 +209,45 @@
                             case CIRCLE:
                                 switch (coordinate) {
                                     case 0: {
-                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ACircleSerializerDeserializer
                                                         .getCenterPointCoordinateOffset(Coordinate.X));
-                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
-                                                ACircleSerializerDeserializer
-                                                        .getCenterPointCoordinateOffset(Coordinate.X));
+                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                .getByteArray(), ACircleSerializerDeserializer
+                                                .getCenterPointCoordinateOffset(Coordinate.X));
 
                                         value = x - radius;
                                     }
                                         break;
                                     case 1: {
-                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ACircleSerializerDeserializer
                                                         .getCenterPointCoordinateOffset(Coordinate.Y));
-                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
-                                                ACircleSerializerDeserializer
-                                                        .getCenterPointCoordinateOffset(Coordinate.Y));
+                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                .getByteArray(), ACircleSerializerDeserializer
+                                                .getCenterPointCoordinateOffset(Coordinate.Y));
 
                                         value = y - radius;
                                     }
                                         break;
                                     case 2: {
-                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double x = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ACircleSerializerDeserializer
                                                         .getCenterPointCoordinateOffset(Coordinate.X));
-                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
-                                                ACircleSerializerDeserializer
-                                                        .getCenterPointCoordinateOffset(Coordinate.X));
+                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                .getByteArray(), ACircleSerializerDeserializer
+                                                .getCenterPointCoordinateOffset(Coordinate.X));
 
                                         value = x + radius;
                                     }
                                         break;
                                     case 3: {
-                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        double y = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ACircleSerializerDeserializer
                                                         .getCenterPointCoordinateOffset(Coordinate.Y));
-                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
-                                                ACircleSerializerDeserializer
-                                                        .getCenterPointCoordinateOffset(Coordinate.Y));
+                                        double radius = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                .getByteArray(), ACircleSerializerDeserializer
+                                                .getCenterPointCoordinateOffset(Coordinate.Y));
 
                                         value = y + radius;
                                     }
@@ -254,25 +262,25 @@
                                 value = Double.MAX_VALUE;
                                 switch (coordinate) {
                                     case 0: {
-                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ARectangleSerializerDeserializer
                                                         .getBottomLeftCoordinateOffset(Coordinate.X));
                                     }
                                         break;
                                     case 1: {
-                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ARectangleSerializerDeserializer
                                                         .getBottomLeftCoordinateOffset(Coordinate.Y));
                                     }
                                         break;
                                     case 2: {
-                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ARectangleSerializerDeserializer
                                                         .getUpperRightCoordinateOffset(Coordinate.X));
                                     }
                                         break;
                                     case 3: {
-                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                        value = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                                 ARectangleSerializerDeserializer
                                                         .getUpperRightCoordinateOffset(Coordinate.Y));
                                     }
@@ -283,9 +291,14 @@
                                     }
                                 }
                                 break;
+                            case NULL: {
+                                out.writeByte(ATypeTag.NULL.serialize());
+                                return;
+                            }
                             default:
                                 throw new NotImplementedException(
-                                        "create-mbr is only implemented for POINT, LINE, POLYGON, CIRCLE and RECTANGLE.");
+                                        "create-mbr is only implemented for POINT, LINE, POLYGON, CIRCLE and RECTANGLE. Encountered type: "
+                                                + tag + ".");
 
                         }
                     } else {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/EditDistanceEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/EditDistanceEvaluator.java
index 05194dd..3d35afd 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/EditDistanceEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/EditDistanceEvaluator.java
@@ -10,23 +10,23 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetricEditDistance;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class EditDistanceEvaluator implements IEvaluator {
+public class EditDistanceEvaluator implements ICopyEvaluator {
 
     // assuming type indicator in serde format
     protected final int typeIndicatorSize = 1;
 
     protected final DataOutput out;
     protected final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-    protected final IEvaluator firstStringEval;
-    protected final IEvaluator secondStringEval;
+    protected final ICopyEvaluator firstStringEval;
+    protected final ICopyEvaluator secondStringEval;
     protected final SimilarityMetricEditDistance ed = new SimilarityMetricEditDistance();
     protected final AsterixOrderedListIterator firstOrdListIter = new AsterixOrderedListIterator();
     protected final AsterixOrderedListIterator secondOrdListIter = new AsterixOrderedListIterator();
@@ -42,7 +42,7 @@
     protected ATypeTag firstTypeTag;
     protected ATypeTag secondTypeTag;
 
-    public EditDistanceEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output) throws AlgebricksException {
+    public EditDistanceEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output) throws AlgebricksException {
         out = output.getDataOutput();
         firstStringEval = args[0].createEvaluator(argOut);
         secondStringEval = args[1].createEvaluator(argOut);
@@ -56,15 +56,15 @@
         if (!checkArgTypes(firstTypeTag, secondTypeTag))
             return;
 
-        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[firstStart + 1]);
+        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[firstStart + 1]);
         if (itemTypeTag == ATypeTag.ANY)
             throw new AlgebricksException("\n Edit Distance can only be called on homogenous lists");
 
-        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[secondStart + 1]);
+        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[secondStart + 1]);
         if (itemTypeTag == ATypeTag.ANY)
             throw new AlgebricksException("\n Edit Distance can only be called on homogenous lists");
 
-        editDistance = computeResult(argOut.getBytes(), firstStart, secondStart, firstTypeTag);
+        editDistance = computeResult(argOut.getByteArray(), firstStart, secondStart, firstTypeTag);
 
         try {
             writeResult(editDistance);
@@ -81,8 +81,8 @@
         secondStart = argOut.getLength();
         secondStringEval.evaluate(tuple);
 
-        firstTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[firstStart]);
-        secondTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[secondStart]);
+        firstTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[firstStart]);
+        secondTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[secondStart]);
     }
 
     protected int computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
index acbe9a2..af0a29c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
@@ -14,28 +14,28 @@
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
-public class FieldAccessByIndexEvalFactory implements IEvaluatorFactory {
+public class FieldAccessByIndexEvalFactory implements ICopyEvaluatorFactory {
 
     private static final long serialVersionUID = 1L;
 
-    private IEvaluatorFactory recordEvalFactory;
-    private IEvaluatorFactory fieldIndexEvalFactory;
+    private ICopyEvaluatorFactory recordEvalFactory;
+    private ICopyEvaluatorFactory fieldIndexEvalFactory;
     private int nullBitmapSize;
     private ARecordType recordType;
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
 
-    public FieldAccessByIndexEvalFactory(IEvaluatorFactory recordEvalFactory, IEvaluatorFactory fieldIndexEvalFactory,
+    public FieldAccessByIndexEvalFactory(ICopyEvaluatorFactory recordEvalFactory, ICopyEvaluatorFactory fieldIndexEvalFactory,
             ARecordType recordType) {
         this.recordEvalFactory = recordEvalFactory;
         this.fieldIndexEvalFactory = fieldIndexEvalFactory;
@@ -48,15 +48,15 @@
     }
 
     @Override
-    public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-        return new IEvaluator() {
+    public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+        return new ICopyEvaluator() {
 
             private DataOutput out = output.getDataOutput();
 
             private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
             private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-            private IEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
-            private IEvaluator eval1 = fieldIndexEvalFactory.createEvaluator(outInput1);
+            private ICopyEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
+            private ICopyEvaluator eval1 = fieldIndexEvalFactory.createEvaluator(outInput1);
             @SuppressWarnings("unchecked")
             private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                     .getSerializerDeserializer(BuiltinType.ANULL);
@@ -73,7 +73,7 @@
                     eval0.evaluate(tuple);
                     outInput1.reset();
                     eval1.evaluate(tuple);
-                    byte[] serRecord = outInput0.getBytes();
+                    byte[] serRecord = outInput0.getByteArray();
 
                     if (serRecord[0] == SER_NULL_TYPE_TAG) {
                         nullSerde.serialize(ANull.NULL, out);
@@ -85,7 +85,7 @@
                                 + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serRecord[0]));
                     }
 
-                    fieldIndex = IntegerSerializerDeserializer.getInt(outInput1.getBytes(), 1);
+                    fieldIndex = IntegerSerializerDeserializer.getInt(outInput1.getByteArray(), 1);
                     fieldValueOffset = ARecordSerializerDeserializer.getFieldOffsetById(serRecord, fieldIndex,
                             nullBitmapSize, recordType.isOpen());
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FunctionManagerImpl.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FunctionManagerImpl.java
index 99fcc00..6f834a7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FunctionManagerImpl.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FunctionManagerImpl.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.evaluators.common;
 
 import java.util.ArrayList;
@@ -6,38 +21,41 @@
 import java.util.Map;
 
 import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.functions.IFunctionManager;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
 
 public class FunctionManagerImpl implements IFunctionManager {
-    private final Map<FunctionIdentifier, IFunctionDescriptor> functions;
+    private final Map<Pair<FunctionIdentifier, Integer>, IFunctionDescriptorFactory> functions;
 
     public FunctionManagerImpl() {
-        functions = new HashMap<FunctionIdentifier, IFunctionDescriptor>();
+        functions = new HashMap<Pair<FunctionIdentifier, Integer>, IFunctionDescriptorFactory>();
     }
 
     @Override
     public synchronized IFunctionDescriptor lookupFunction(FunctionIdentifier fid) throws AlgebricksException {
-        return functions.get(fid);
+        Pair<FunctionIdentifier, Integer> key = new Pair<FunctionIdentifier, Integer>(fid, fid.getArity());
+        return functions.get(key).createFunctionDescriptor();
     }
 
     @Override
-    public synchronized void registerFunction(IFunctionDescriptor descriptor) throws AlgebricksException {
-        functions.put(descriptor.getIdentifier(), descriptor);
+    public synchronized void registerFunction(IFunctionDescriptorFactory descriptorFactory) throws AlgebricksException {
+        FunctionIdentifier fid = descriptorFactory.createFunctionDescriptor().getIdentifier();
+        functions.put(new Pair<FunctionIdentifier, Integer>(fid, fid.getArity()), descriptorFactory);
     }
 
     @Override
-    public synchronized void unregisterFunction(IFunctionDescriptor descriptor) throws AlgebricksException {
-        FunctionIdentifier fid = descriptor.getIdentifier();
-        IFunctionDescriptor desc = functions.get(fid);
-        if (descriptor == desc) {
-            functions.remove(fid);
-        }
+    public synchronized void unregisterFunction(IFunctionDescriptorFactory descriptorFactory)
+            throws AlgebricksException {
+        FunctionIdentifier fid = descriptorFactory.createFunctionDescriptor().getIdentifier();
+        Pair<FunctionIdentifier, Integer> key = new Pair<FunctionIdentifier, Integer>(fid, fid.getArity());
+        functions.remove(key);
     }
 
     @Override
-    public synchronized Iterator<IFunctionDescriptor> iterator() {
-        return new ArrayList<IFunctionDescriptor>(functions.values()).iterator();
+    public synchronized Iterator<IFunctionDescriptorFactory> iterator() {
+        return new ArrayList<IFunctionDescriptorFactory>(functions.values()).iterator();
     }
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/GramTokensEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/GramTokensEvaluator.java
index 0fb473d..d336c05 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/GramTokensEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/GramTokensEvaluator.java
@@ -3,51 +3,43 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.fuzzyjoin.IntArray;
-import edu.uci.ics.fuzzyjoin.tokenizer.IBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.IToken;
-import edu.uci.ics.fuzzyjoin.tokenizer.NGramUTF8StringBinaryTokenizer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.BooleanSerializerDeserializer;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.NGramUTF8StringBinaryTokenizer;
 
-public class GramTokensEvaluator implements IEvaluator {
+public class GramTokensEvaluator implements ICopyEvaluator {
 
     // assuming type indicator in serde format
     private final int typeIndicatorSize = 1;
 
-    protected final DataOutput out;
-    protected final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-    protected final IEvaluator stringEval;
-    protected final IEvaluator gramLengthEval;
-    protected final IEvaluator prePostEval;
+    private final DataOutput out;
+    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+    private final ICopyEvaluator stringEval;
+    private final ICopyEvaluator gramLengthEval;
+    private final ICopyEvaluator prePostEval;
 
     private final NGramUTF8StringBinaryTokenizer tokenizer;
+    private final OrderedListBuilder listBuilder = new OrderedListBuilder();
+    private final AOrderedListType listType;
 
-    protected final IntArray itemOffsets = new IntArray();
-    protected final ArrayBackedValueStorage tokenBuffer = new ArrayBackedValueStorage();
-
-    private IAOrderedListBuilder listBuilder = new OrderedListBuilder();
-    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-    private BuiltinType itemType;
-
-    public GramTokensEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output, IBinaryTokenizer tokenizer,
+    public GramTokensEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output, IBinaryTokenizer tokenizer,
             BuiltinType itemType) throws AlgebricksException {
         out = output.getDataOutput();
         stringEval = args[0].createEvaluator(argOut);
         gramLengthEval = args[1].createEvaluator(argOut);
         prePostEval = args[2].createEvaluator(argOut);
         this.tokenizer = (NGramUTF8StringBinaryTokenizer) tokenizer;
-        this.itemType = itemType;
+        this.listType = new AOrderedListType(itemType, null);
     }
 
     @Override
@@ -59,22 +51,18 @@
         int prePostOff = argOut.getLength();
         prePostEval.evaluate(tuple);
 
-        byte[] bytes = argOut.getBytes();
+        byte[] bytes = argOut.getByteArray();
         int gramLength = IntegerSerializerDeserializer.getInt(bytes, gramLengthOff + typeIndicatorSize);
         tokenizer.setGramlength(gramLength);
         boolean prePost = BooleanSerializerDeserializer.getBoolean(bytes, prePostOff + typeIndicatorSize);
         tokenizer.setPrePost(prePost);
         tokenizer.reset(bytes, 0, gramLengthOff);
-        tokenBuffer.reset();
 
         try {
-            listBuilder.reset(new AOrderedListType(itemType, null));
+            listBuilder.reset(listType);
             while (tokenizer.hasNext()) {
-                inputVal.reset();
                 tokenizer.next();
-                IToken token = tokenizer.getToken();
-                token.serializeToken(inputVal.getDataOutput());
-                listBuilder.addItem(inputVal);
+                listBuilder.addItem(tokenizer.getToken());
             }
             listBuilder.write(out, true);
         } catch (IOException e) {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityFiltersCache.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityFiltersCache.java
index 7b25c6e..159468a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityFiltersCache.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityFiltersCache.java
@@ -6,7 +6,7 @@
 
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFilters;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFiltersFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java
new file mode 100644
index 0000000..ab73df2
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java
@@ -0,0 +1,113 @@
+package edu.uci.ics.asterix.runtime.evaluators.common;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.functions.BinaryHashMap.BinaryEntry;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SimilarityJaccardCheckEvaluator extends SimilarityJaccardEvaluator {
+
+    protected final ICopyEvaluator jaccThreshEval;
+    protected float jaccThresh = -1f;
+
+    protected OrderedListBuilder listBuilder;
+    protected ArrayBackedValueStorage inputVal;
+    @SuppressWarnings("unchecked")
+    protected final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+    protected final AOrderedListType listType = new AOrderedListType(BuiltinType.ANY, "list");
+
+    public SimilarityJaccardCheckEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+            throws AlgebricksException {
+        super(args, output);
+        jaccThreshEval = args[2].createEvaluator(argOut);
+        listBuilder = new OrderedListBuilder();
+        inputVal = new ArrayBackedValueStorage();
+    }
+
+    @Override
+    protected void runArgEvals(IFrameTupleReference tuple) throws AlgebricksException {
+        super.runArgEvals(tuple);
+        int jaccThreshStart = argOut.getLength();
+        jaccThreshEval.evaluate(tuple);
+        jaccThresh = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), jaccThreshStart
+                + TYPE_INDICATOR_SIZE);
+    }
+
+    @Override
+    protected int probeHashMap(AbstractAsterixListIterator probeIter, int buildListSize, int probeListSize) {
+        // Apply length filter.
+        int lengthLowerBound = (int) Math.ceil(jaccThresh * probeListSize);
+        if ((lengthLowerBound > buildListSize) || (buildListSize > (int) Math.floor(1.0f / jaccThresh * probeListSize))) {
+            return -1;
+        }
+        // Probe phase: Probe items from second list, and compute intersection size.
+        int intersectionSize = 0;
+        int probeListCount = 0;
+        int minUnionSize = probeListSize;
+        while (probeIter.hasNext()) {
+            probeListCount++;
+            byte[] buf = probeIter.getData();
+            int off = probeIter.getPos();
+            int len = getItemLen(buf, off);
+            keyEntry.set(buf, off, len);            
+            BinaryEntry entry = hashMap.get(keyEntry);
+            if (entry != null) {
+                // Increment second value.
+                int firstValInt = IntegerPointable.getInteger(entry.buf, entry.off);
+                // Irrelevant for the intersection size.
+                if (firstValInt == 0) {
+                    continue;
+                }
+                int secondValInt = IntegerPointable.getInteger(entry.buf, entry.off + 4);
+                // Subtract old min value.
+                intersectionSize -= (firstValInt < secondValInt) ? firstValInt : secondValInt;
+                secondValInt++;
+                // Add new min value.
+                intersectionSize += (firstValInt < secondValInt) ? firstValInt : secondValInt;
+                IntegerPointable.setInteger(entry.buf, entry.off + 4, secondValInt);
+            } else {
+                // Could not find element in other set. Increase min union size by 1.
+                minUnionSize++;
+                // Check whether jaccThresh can still be satisfied if there was a mismatch.
+                int maxIntersectionSize = intersectionSize + (probeListSize - probeListCount);
+                int lowerBound = (int) Math.floor(jaccThresh * minUnionSize);
+                if (maxIntersectionSize < lowerBound) {
+                    // Cannot satisfy jaccThresh.
+                    return -1;
+                }
+            }
+            probeIter.next();
+        }
+        return intersectionSize;
+    }
+    
+    @Override
+    protected void writeResult(float jacc) throws IOException {
+        listBuilder.reset(listType);
+        boolean matches = (jacc < jaccThresh) ? false : true;
+        inputVal.reset();
+        booleanSerde.serialize(matches ? ABoolean.TRUE : ABoolean.FALSE, inputVal.getDataOutput());
+        listBuilder.addItem(inputVal);
+
+        inputVal.reset();
+        aFloat.setValue((matches) ? jacc : 0.0f);
+        floatSerde.serialize(aFloat, inputVal.getDataOutput());
+        listBuilder.addItem(inputVal);
+
+        listBuilder.write(out, true);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
index dee26fb..9f5c9c8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
@@ -2,33 +2,43 @@
 
 import java.io.DataOutput;
 import java.io.IOException;
+import java.util.Arrays;
 
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetricJaccard;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.runtime.evaluators.functions.BinaryHashMap;
+import edu.uci.ics.asterix.runtime.evaluators.functions.BinaryHashMap.BinaryEntry;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-// assumes that both arguments are sorted by the same ordering
+public class SimilarityJaccardEvaluator implements ICopyEvaluator {
 
-public class SimilarityJaccardEvaluator implements IEvaluator {
+    // Parameters for hash table.
+    protected final int TABLE_SIZE = 100;
+    protected final int TABLE_FRAME_SIZE = 32768;
 
-    // assuming type indicator in serde format
-    protected final int typeIndicatorSize = 1;
+    // Assuming type indicator in serde format.
+    protected final int TYPE_INDICATOR_SIZE = 1;
 
     protected final DataOutput out;
     protected final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-    protected final IEvaluator firstOrdListEval;
-    protected final IEvaluator secondOrdListEval;
+    protected final ICopyEvaluator firstOrdListEval;
+    protected final ICopyEvaluator secondOrdListEval;
 
     protected final AsterixOrderedListIterator fstOrdListIter = new AsterixOrderedListIterator();
     protected final AsterixOrderedListIterator sndOrdListIter = new AsterixOrderedListIterator();
@@ -38,32 +48,46 @@
     protected AbstractAsterixListIterator firstListIter;
     protected AbstractAsterixListIterator secondListIter;
 
-    protected final SimilarityMetricJaccard jaccard = new SimilarityMetricJaccard();
     protected final AMutableFloat aFloat = new AMutableFloat(0);
     @SuppressWarnings("unchecked")
     protected final ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.AFLOAT);
 
-    protected ATypeTag itemTypeTag;
-
     protected ATypeTag firstTypeTag;
     protected ATypeTag secondTypeTag;
     protected int firstStart = -1;
     protected int secondStart = -1;
     protected float jaccSim = 0.0f;
+    protected ATypeTag itemTypeTag;
 
-    public SimilarityJaccardEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output) throws AlgebricksException {
+    protected BinaryHashMap hashMap;
+    protected BinaryEntry keyEntry = new BinaryEntry();
+    protected BinaryEntry valEntry = new BinaryEntry();
+
+    // Ignore case for strings. Defaults to true.
+    protected final boolean ignoreCase = true;
+
+    public SimilarityJaccardEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+            throws AlgebricksException {
         out = output.getDataOutput();
         firstOrdListEval = args[0].createEvaluator(argOut);
         secondOrdListEval = args[1].createEvaluator(argOut);
+        byte[] emptyValBuf = new byte[8];
+        Arrays.fill(emptyValBuf, (byte) 0);
+        valEntry.set(emptyValBuf, 0, 8);
     }
 
     @Override
     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
         runArgEvals(tuple);
-        if (!checkArgTypes(firstTypeTag, secondTypeTag))
+        if (!checkArgTypes(firstTypeTag, secondTypeTag)) {
             return;
-        jaccSim = computeResult(argOut.getBytes(), firstStart, secondStart, firstTypeTag);
+        }
+        if (prepareLists(argOut.getByteArray(), firstStart, secondStart, firstTypeTag)) {
+            jaccSim = computeResult(argOut.getByteArray(), firstStart, secondStart, firstTypeTag);
+        } else {
+            jaccSim = 0.0f;
+        }
         try {
             writeResult(jaccSim);
         } catch (IOException e) {
@@ -79,30 +103,165 @@
         secondStart = argOut.getLength();
         secondOrdListEval.evaluate(tuple);
 
-        firstTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[firstStart]);
-        secondTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[secondStart]);
+        firstTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[firstStart]);
+        secondTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[secondStart]);
     }
 
-    protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
+    protected boolean prepareLists(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
             throws AlgebricksException {
         firstListIter.reset(bytes, firstStart);
         secondListIter.reset(bytes, secondStart);
         // Check for special case where one of the lists is empty, since list
         // types won't match.
         if (firstListIter.size() == 0 || secondListIter.size() == 0) {
-            try {
-                writeResult(0.0f);
-            } catch (IOException e) {
-                throw new AlgebricksException(e);
+            return false;
+        }
+        if (firstTypeTag == ATypeTag.ANY || secondTypeTag == ATypeTag.ANY) {
+            throw new AlgebricksException("\n Jaccard can only be called on homogenous lists");
+        }
+        // TODO: Check item types are compatible.
+        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes[firstStart + 1]);
+        return true;
+    }
+
+    protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
+            throws AlgebricksException {
+        setHashMap(bytes, firstStart, secondStart);
+        // We will subtract the intersection size later to get the real union size.
+        int firstListSize = firstListIter.size();
+        int secondListSize = secondListIter.size();
+        int unionSize = firstListSize + secondListSize;
+        // Choose smaller list as build, and larger one as probe.
+        AbstractAsterixListIterator buildList = (firstListSize < secondListSize) ? firstListIter : secondListIter;
+        AbstractAsterixListIterator probeList = (buildList == firstListIter) ? secondListIter : firstListIter;
+        int buildListSize = (buildList == firstListIter) ? firstListSize : secondListSize;
+        int probeListSize = (probeList == firstListIter) ? firstListSize : secondListSize;
+
+        buildHashMap(buildList);
+        int intersectionSize = probeHashMap(probeList, buildListSize, probeListSize);
+        // Special indicator for the "check" version of jaccard.
+        if (intersectionSize < 0) {
+            return -1;
+        }
+        unionSize -= intersectionSize;
+        return (float) intersectionSize / (float) unionSize;
+    }
+
+    protected void buildHashMap(AbstractAsterixListIterator buildIter) {
+        // Build phase: Add items into hash map, starting with first list.
+        // Value in map is a pair of integers. Set first integer to 1.
+        IntegerPointable.setInteger(valEntry.buf, 0, 1);
+        while (buildIter.hasNext()) {
+            byte[] buf = buildIter.getData();
+            int off = buildIter.getPos();
+            int len = getItemLen(buf, off);
+            keyEntry.set(buf, off, len);
+            BinaryEntry entry = hashMap.put(keyEntry, valEntry);
+            if (entry != null) {
+                // Increment value.
+                int firstValInt = IntegerPointable.getInteger(entry.buf, entry.off);
+                IntegerPointable.setInteger(entry.buf, entry.off, firstValInt + 1);
+            }
+            buildIter.next();
+        }
+    }
+
+    protected int probeHashMap(AbstractAsterixListIterator probeIter, int probeListSize, int buildListSize) {
+        // Probe phase: Probe items from second list, and compute intersection size.
+        int intersectionSize = 0;
+        while (probeIter.hasNext()) {
+            byte[] buf = probeIter.getData();
+            int off = probeIter.getPos();
+            int len = getItemLen(buf, off);
+            keyEntry.set(buf, off, len);
+            BinaryEntry entry = hashMap.get(keyEntry);
+            if (entry != null) {
+                // Increment second value.
+                int firstValInt = IntegerPointable.getInteger(entry.buf, entry.off);
+                // Irrelevant for the intersection size.
+                if (firstValInt == 0) {
+                    continue;
+                }
+                int secondValInt = IntegerPointable.getInteger(entry.buf, entry.off + 4);
+                // Subtract old min value.
+                intersectionSize -= (firstValInt < secondValInt) ? firstValInt : secondValInt;
+                secondValInt++;
+                // Add new min value.
+                intersectionSize += (firstValInt < secondValInt) ? firstValInt : secondValInt;
+                IntegerPointable.setInteger(entry.buf, entry.off + 4, secondValInt);
+            }
+            probeIter.next();
+        }
+        return intersectionSize;
+    }
+
+    protected void setHashMap(byte[] bytes, int firstStart, int secondStart) {
+        if (hashMap != null) {
+            hashMap.clear();
+            return;
+        }
+        IBinaryHashFunction hashFunc = null;
+        IBinaryComparator cmp = null;
+        switch (itemTypeTag) {
+            case INT32: {
+                hashFunc = AqlBinaryHashFunctionFactoryProvider.INTEGER_POINTABLE_INSTANCE.createBinaryHashFunction();
+                cmp = AqlBinaryComparatorFactoryProvider.INTEGER_POINTABLE_INSTANCE.createBinaryComparator();
+                break;
+            }
+            case FLOAT: {
+                hashFunc = AqlBinaryHashFunctionFactoryProvider.FLOAT_POINTABLE_INSTANCE.createBinaryHashFunction();
+                cmp = AqlBinaryComparatorFactoryProvider.FLOAT_POINTABLE_INSTANCE.createBinaryComparator();
+                break;
+            }
+            case DOUBLE: {
+                hashFunc = AqlBinaryHashFunctionFactoryProvider.DOUBLE_POINTABLE_INSTANCE.createBinaryHashFunction();
+                cmp = AqlBinaryComparatorFactoryProvider.DOUBLE_POINTABLE_INSTANCE.createBinaryComparator();
+                break;
+            }
+            case STRING: {
+                if (ignoreCase) {
+                    // Ignore case in comparisons and hashing.
+                    hashFunc = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_LOWERCASE_POINTABLE_INSTANCE
+                            .createBinaryHashFunction();
+                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_LOWERCASE_POINTABLE_INSTANCE
+                            .createBinaryComparator();
+                } else {
+                    hashFunc = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_POINTABLE_INSTANCE
+                            .createBinaryHashFunction();
+                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryComparator();
+                }
+                break;
+            }
+            default: {
+                break;
             }
         }
-        if (firstTypeTag == ATypeTag.ANY || secondTypeTag == ATypeTag.ANY)
-            throw new AlgebricksException("\n Jaccard can only be called on homogenous lists");
-        return jaccard.getSimilarity(firstListIter, secondListIter);
+        hashMap = new BinaryHashMap(TABLE_SIZE, TABLE_FRAME_SIZE, hashFunc, cmp);
+    }
+
+    protected int getItemLen(byte[] bytes, int itemOff) {
+        switch (itemTypeTag) {
+            case INT32: {
+                return 4;
+            }
+            case FLOAT: {
+                return 4;
+            }
+            case DOUBLE: {
+                return 8;
+            }
+            case STRING: {
+                // 2 bytes for the UTF8 len, plus the string data.
+                return 2 + UTF8StringPointable.getUTFLength(bytes, itemOff);
+            }
+            default: {
+                return -1;
+            }
+        }
     }
 
     protected boolean checkArgTypes(ATypeTag typeTag1, ATypeTag typeTag2) throws AlgebricksException {
-        // jaccard between null and anything else is 0
+        // Jaccard between null and anything else is 0
         if (typeTag1 == ATypeTag.NULL || typeTag2 == ATypeTag.NULL) {
             try {
                 writeResult(0.0f);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardPrefixEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardPrefixEvaluator.java
index 93954af..7686cbe 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardPrefixEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardPrefixEvaluator.java
@@ -17,27 +17,27 @@
 import edu.uci.ics.fuzzyjoin.similarity.PartialIntersect;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFiltersJaccard;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetric;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
-public class SimilarityJaccardPrefixEvaluator implements IEvaluator {
+public class SimilarityJaccardPrefixEvaluator implements ICopyEvaluator {
     // assuming type indicator in serde format
     protected final int typeIndicatorSize = 1;
 
     protected final DataOutput out;
     protected final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-    protected final IEvaluator evalLen1;
-    protected final IEvaluator evalTokens1;
-    protected final IEvaluator evalLen2;
-    protected final IEvaluator evalTokens2;
-    protected final IEvaluator evalTokenPrefix;
-    protected final IEvaluator evalThreshold;
+    protected final ICopyEvaluator evalLen1;
+    protected final ICopyEvaluator evalTokens1;
+    protected final ICopyEvaluator evalLen2;
+    protected final ICopyEvaluator evalTokens2;
+    protected final ICopyEvaluator evalTokenPrefix;
+    protected final ICopyEvaluator evalThreshold;
 
     protected float similarityThresholdCache;
     protected SimilarityFiltersJaccard similarityFilters;
@@ -57,7 +57,7 @@
     protected final ISerializerDeserializer<AFloat> reusSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.AFLOAT);
 
-    public SimilarityJaccardPrefixEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output)
+    public SimilarityJaccardPrefixEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
             throws AlgebricksException {
         out = output.getDataOutput();
         evalLen1 = args[0].createEvaluator(inputVal);
@@ -74,7 +74,7 @@
         sim = 0;
         inputVal.reset();
         evalThreshold.evaluate(tuple);
-        float similarityThreshold = AFloatSerializerDeserializer.getFloat(inputVal.getBytes(), 1);
+        float similarityThreshold = AFloatSerializerDeserializer.getFloat(inputVal.getByteArray(), 1);
 
         if (similarityThreshold != similarityThresholdCache || similarityFilters == null) {
             similarityFilters = new SimilarityFiltersJaccard(similarityThreshold);
@@ -83,11 +83,11 @@
 
         inputVal.reset();
         evalLen1.evaluate(tuple);
-        int length1 = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+        int length1 = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
         inputVal.reset();
         evalLen2.evaluate(tuple);
-        int length2 = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+        int length2 = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
         //
         // -- - length filter - --
@@ -100,7 +100,7 @@
             inputVal.reset();
             evalTokens1.evaluate(tuple);
 
-            byte[] serList = inputVal.getBytes();
+            byte[] serList = inputVal.getByteArray();
             if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
                 throw new AlgebricksException("Scan collection is not defined for values of type"
                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
@@ -108,7 +108,7 @@
 
             int lengthTokens1;
             if (serList[0] == SER_ORDEREDLIST_TYPE_TAG) {
-                lengthTokens1 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
+                lengthTokens1 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal.getByteArray());
                 // read tokens
                 for (i = 0; i < lengthTokens1; i++) {
                     int itemOffset;
@@ -120,7 +120,7 @@
                     tokens1.add(IntegerSerializerDeserializer.getInt(serList, itemOffset));
                 }
             } else {
-                lengthTokens1 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
+                lengthTokens1 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal.getByteArray());
                 // read tokens
                 for (i = 0; i < lengthTokens1; i++) {
                     int itemOffset;
@@ -142,7 +142,7 @@
             inputVal.reset();
             evalTokens2.evaluate(tuple);
 
-            serList = inputVal.getBytes();
+            serList = inputVal.getByteArray();
             if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
                 throw new AlgebricksException("Scan collection is not defined for values of type"
                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
@@ -150,7 +150,7 @@
 
             int lengthTokens2;
             if (serList[0] == SER_ORDEREDLIST_TYPE_TAG) {
-                lengthTokens2 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
+                lengthTokens2 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal.getByteArray());
                 // read tokens
                 for (i = 0; i < lengthTokens2; i++) {
                     int itemOffset;
@@ -162,7 +162,7 @@
                     tokens2.add(IntegerSerializerDeserializer.getInt(serList, itemOffset));
                 }
             } else {
-                lengthTokens2 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
+                lengthTokens2 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal.getByteArray());
                 // read tokens
                 for (i = 0; i < lengthTokens2; i++) {
                     int itemOffset;
@@ -182,7 +182,7 @@
             // -- - token prefix - --
             inputVal.reset();
             evalTokenPrefix.evaluate(tuple);
-            int tokenPrefix = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+            int tokenPrefix = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
             //
             // -- - position filter - --
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java
new file mode 100644
index 0000000..a192c5d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.runtime.evaluators.common;
+
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetricJaccard;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+public class SimilarityJaccardSortedCheckEvaluator extends SimilarityJaccardCheckEvaluator {
+
+    protected final SimilarityMetricJaccard jaccard = new SimilarityMetricJaccard();
+    
+    public SimilarityJaccardSortedCheckEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+            throws AlgebricksException {
+        super(args, output);
+    }
+
+    @Override
+    protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
+            throws AlgebricksException {
+        return jaccard.getSimilarity(firstListIter, secondListIter, jaccThresh);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java
new file mode 100644
index 0000000..3be0280
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java
@@ -0,0 +1,23 @@
+package edu.uci.ics.asterix.runtime.evaluators.common;
+
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetricJaccard;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+// Assumes that both arguments are sorted by the same ordering.
+public class SimilarityJaccardSortedEvaluator extends SimilarityJaccardEvaluator {
+
+    protected final SimilarityMetricJaccard jaccard = new SimilarityMetricJaccard();
+    
+	public SimilarityJaccardSortedEvaluator(ICopyEvaluatorFactory[] args,
+			IDataOutputProvider output) throws AlgebricksException {
+		super(args, output);
+	}
+
+    protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
+            throws AlgebricksException {
+        return jaccard.getSimilarity(firstListIter, secondListIter);
+    }
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/WordTokensEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/WordTokensEvaluator.java
index d17f569..a98b754 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/WordTokensEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/WordTokensEvaluator.java
@@ -3,58 +3,45 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.fuzzyjoin.IntArray;
-import edu.uci.ics.fuzzyjoin.tokenizer.IBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.IToken;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
 
-public class WordTokensEvaluator implements IEvaluator {
-    protected final DataOutput out;
-    protected final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-    protected final IEvaluator stringEval;
+public class WordTokensEvaluator implements ICopyEvaluator {
+    private final DataOutput out;
+    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+    private final ICopyEvaluator stringEval;
 
-    protected final IBinaryTokenizer tokenizer;
+    private final IBinaryTokenizer tokenizer;
+    private final OrderedListBuilder listBuilder = new OrderedListBuilder();
+    private final AOrderedListType listType;
 
-    protected final IntArray itemOffsets = new IntArray();
-    protected final ArrayBackedValueStorage tokenBuffer = new ArrayBackedValueStorage();
-
-    private IAOrderedListBuilder listBuilder = new OrderedListBuilder();
-    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-    private BuiltinType itemType;
-
-    public WordTokensEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output, IBinaryTokenizer tokenizer,
+    public WordTokensEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output, IBinaryTokenizer tokenizer,
             BuiltinType itemType) throws AlgebricksException {
         out = output.getDataOutput();
         stringEval = args[0].createEvaluator(argOut);
         this.tokenizer = tokenizer;
-        this.itemType = itemType;
+        this.listType = new AOrderedListType(itemType, null);
     }
 
     @Override
     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
         argOut.reset();
         stringEval.evaluate(tuple);
-        byte[] bytes = argOut.getBytes();
+        byte[] bytes = argOut.getByteArray();
         tokenizer.reset(bytes, 0, argOut.getLength());
-        tokenBuffer.reset();
-
         try {
-            listBuilder.reset(new AOrderedListType(itemType, null));
+            listBuilder.reset(listType);
             while (tokenizer.hasNext()) {
-                inputVal.reset();
                 tokenizer.next();
-                IToken token = tokenizer.getToken();
-                token.serializeToken(inputVal.getDataOutput());
-                listBuilder.addItem(inputVal);
+                listBuilder.addItem(tokenizer.getToken());
             }
             listBuilder.write(out, true);
         } catch (IOException e) {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/AbstractComparisonEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/AbstractComparisonEvaluator.java
index 798853e..1565cb9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/AbstractComparisonEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/AbstractComparisonEvaluator.java
@@ -2,6 +2,7 @@
 
 import java.io.DataOutput;
 
+import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.ADateOrTimeAscBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.ADateTimeAscBinaryComparatorFactory;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
@@ -16,17 +17,17 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.FloatSerializerDeserializer;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
-public abstract class AbstractComparisonEvaluator implements IEvaluator {
+public abstract class AbstractComparisonEvaluator implements ICopyEvaluator {
 
     protected enum ComparisonResult {
         LESS_THAN,
@@ -38,8 +39,8 @@
     protected DataOutput out;
     protected ArrayBackedValueStorage outLeft = new ArrayBackedValueStorage();
     protected ArrayBackedValueStorage outRight = new ArrayBackedValueStorage();
-    protected IEvaluator evalLeft;
-    protected IEvaluator evalRight;
+    protected ICopyEvaluator evalLeft;
+    protected ICopyEvaluator evalRight;
     @SuppressWarnings("unchecked")
     protected ISerializerDeserializer<ABoolean> serde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
@@ -50,9 +51,11 @@
             .createBinaryComparator();
     protected IBinaryComparator dateTimeBinaryComp = ADateTimeAscBinaryComparatorFactory.INSTANCE
             .createBinaryComparator();
+    protected IBinaryComparator dateOrTimeBinaryComp = ADateOrTimeAscBinaryComparatorFactory.INSTANCE
+            .createBinaryComparator();
 
-    public AbstractComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-            IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+    public AbstractComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+            ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
         this.out = out;
         this.evalLeft = evalLeftFactory.createEvaluator(outLeft);
         this.evalRight = evalRightFactory.createEvaluator(outRight);
@@ -74,7 +77,7 @@
         if (outLeft.getLength() == 0) {
             isLeftNull = true;
         } else {
-            typeTag1 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outLeft.getBytes()[0]);
+            typeTag1 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outLeft.getByteArray()[0]);
             if (typeTag1 == ATypeTag.NULL) {
                 isLeftNull = true;
             }
@@ -82,7 +85,7 @@
         if (outRight.getLength() == 0) {
             isRightNull = true;
         } else {
-            typeTag2 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outRight.getBytes()[0]);
+            typeTag2 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outRight.getByteArray()[0]);
             if (typeTag2 == ATypeTag.NULL) {
                 isRightNull = true;
             }
@@ -119,6 +122,10 @@
             case DATETIME: {
                 return compareDateTimeWithArg(typeTag2);
             }
+            case DATE:
+            case TIME: {
+                return compareDateOrTimeWithArg(typeTag2);
+            }
             default: {
                 throw new AlgebricksException("Comparison is undefined between types " + typeTag1 + " and " + typeTag2
                         + " .");
@@ -126,12 +133,12 @@
         }
     }
 
-    private ComparisonResult compareDateTimeWithArg(ATypeTag typeTag2) throws AlgebricksException {
+    private ComparisonResult compareDateOrTimeWithArg(ATypeTag typeTag2) throws AlgebricksException {
         if (typeTag2 == ATypeTag.NULL) {
             return ComparisonResult.GREATER_THAN;
-        } else if (typeTag2 == ATypeTag.DATETIME) {
-            int result = dateTimeBinaryComp.compare(outLeft.getBytes(), 1, outLeft.getLength() - 1,
-                    outRight.getBytes(), 1, outRight.getLength() - 1);
+        } else if (typeTag2 == ATypeTag.DATE || typeTag2 == ATypeTag.TIME) {
+            int result = dateOrTimeBinaryComp.compare(outLeft.getByteArray(), 1, outLeft.getLength() - 1,
+                    outRight.getByteArray(), 1, outRight.getLength() - 1);
             if (result == 0)
                 return ComparisonResult.EQUAL;
             else if (result < 0)
@@ -139,13 +146,29 @@
             else
                 return ComparisonResult.GREATER_THAN;
         }
-        throw new AlgebricksException("Comparison is undefined between types ADateTime and " + typeTag2 + " .");
+        throw new AlgebricksException("Comparison is undefined between types Date/Time and " + typeTag2 + " .");
+    }
+
+    private ComparisonResult compareDateTimeWithArg(ATypeTag typeTag2) throws AlgebricksException {
+        if (typeTag2 == ATypeTag.NULL) {
+            return ComparisonResult.GREATER_THAN;
+        } else if (typeTag2 == ATypeTag.DATETIME) {
+            int result = dateTimeBinaryComp.compare(outLeft.getByteArray(), 1, outLeft.getLength() - 1,
+                    outRight.getByteArray(), 1, outRight.getLength() - 1);
+            if (result == 0)
+                return ComparisonResult.EQUAL;
+            else if (result < 0)
+                return ComparisonResult.LESS_THAN;
+            else
+                return ComparisonResult.GREATER_THAN;
+        }
+        throw new AlgebricksException("Comparison is undefined between types Datetime and " + typeTag2 + " .");
     }
 
     private ComparisonResult compareBooleanWithArg(ATypeTag typeTag2) throws AlgebricksException {
         if (typeTag2 == ATypeTag.BOOLEAN) {
-            byte b0 = outLeft.getBytes()[1];
-            byte b1 = outRight.getBytes()[1];
+            byte b0 = outLeft.getByteArray()[1];
+            byte b1 = outRight.getByteArray()[1];
             return compareByte(b0, b1);
         }
         throw new AlgebricksException("Comparison is undefined between types ABoolean and " + typeTag2 + " .");
@@ -153,8 +176,8 @@
 
     private ComparisonResult compareStringWithArg(ATypeTag typeTag2) throws AlgebricksException {
         if (typeTag2 == ATypeTag.STRING) {
-            int result = strBinaryComp.compare(outLeft.getBytes(), 1, outLeft.getLength() - 1, outRight.getBytes(), 1,
-                    outRight.getLength() - 1);
+            int result = strBinaryComp.compare(outLeft.getByteArray(), 1, outLeft.getLength() - 1,
+                    outRight.getByteArray(), 1, outRight.getLength() - 1);
             if (result == 0)
                 return ComparisonResult.EQUAL;
             else if (result < 0)
@@ -166,30 +189,30 @@
     }
 
     private ComparisonResult compareDoubleWithArg(ATypeTag typeTag2) throws AlgebricksException {
-        double s = ADoubleSerializerDeserializer.getDouble(outLeft.getBytes(), 1);
+        double s = ADoubleSerializerDeserializer.getDouble(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
@@ -199,30 +222,30 @@
     }
 
     private ComparisonResult compareFloatWithArg(ATypeTag typeTag2) throws AlgebricksException {
-        float s = FloatSerializerDeserializer.getFloat(outLeft.getBytes(), 1);
+        float s = FloatSerializerDeserializer.getFloat(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
@@ -232,30 +255,30 @@
     }
 
     private ComparisonResult compareInt64WithArg(ATypeTag typeTag2) throws AlgebricksException {
-        long s = AInt64SerializerDeserializer.getLong(outLeft.getBytes(), 1);
+        long s = AInt64SerializerDeserializer.getLong(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
@@ -265,30 +288,30 @@
     }
 
     private ComparisonResult compareInt32WithArg(ATypeTag typeTag2) throws AlgebricksException {
-        int s = IntegerSerializerDeserializer.getInt(outLeft.getBytes(), 1);
+        int s = IntegerSerializerDeserializer.getInt(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareInt(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareInt(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareInt(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
@@ -298,30 +321,30 @@
     }
 
     private ComparisonResult compareInt16WithArg(ATypeTag typeTag2) throws AlgebricksException {
-        short s = AInt16SerializerDeserializer.getShort(outLeft.getBytes(), 1);
+        short s = AInt16SerializerDeserializer.getShort(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareShort(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareShort(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareInt(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
@@ -331,30 +354,30 @@
     }
 
     private ComparisonResult compareInt8WithArg(ATypeTag typeTag2) throws AlgebricksException {
-        byte s = AInt8SerializerDeserializer.getByte(outLeft.getBytes(), 1);
+        byte s = AInt8SerializerDeserializer.getByte(outLeft.getByteArray(), 1);
         switch (typeTag2) {
             case INT8: {
-                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getBytes(), 1);
+                byte v2 = AInt8SerializerDeserializer.getByte(outRight.getByteArray(), 1);
                 return compareByte(s, v2);
             }
             case INT16: {
-                short v2 = AInt16SerializerDeserializer.getShort(outRight.getBytes(), 1);
+                short v2 = AInt16SerializerDeserializer.getShort(outRight.getByteArray(), 1);
                 return compareShort(s, v2);
             }
             case INT32: {
-                int v2 = AInt32SerializerDeserializer.getInt(outRight.getBytes(), 1);
+                int v2 = AInt32SerializerDeserializer.getInt(outRight.getByteArray(), 1);
                 return compareInt(s, v2);
             }
             case INT64: {
-                long v2 = AInt64SerializerDeserializer.getLong(outRight.getBytes(), 1);
+                long v2 = AInt64SerializerDeserializer.getLong(outRight.getByteArray(), 1);
                 return compareLong(s, v2);
             }
             case FLOAT: {
-                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getBytes(), 1);
+                float v2 = AFloatSerializerDeserializer.getFloat(outRight.getByteArray(), 1);
                 return compareFloat(s, v2);
             }
             case DOUBLE: {
-                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getBytes(), 1);
+                double v2 = ADoubleSerializerDeserializer.getDouble(outRight.getByteArray(), 1);
                 return compareDouble(s, v2);
             }
             default: {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
index 1e87b75..ed77276 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
@@ -4,23 +4,23 @@
 
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions.ComparisonKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class ComparisonEvalFactory implements IEvaluatorFactory {
+public class ComparisonEvalFactory implements ICopyEvaluatorFactory {
 
     private static final long serialVersionUID = 1L;
 
-    private IEvaluatorFactory evalLeftFactory;
-    private IEvaluatorFactory evalRightFactory;
+    private ICopyEvaluatorFactory evalLeftFactory;
+    private ICopyEvaluatorFactory evalRightFactory;
     private ComparisonKind comparisonKind;
 
-    public ComparisonEvalFactory(IEvaluatorFactory evalLeftFactory, IEvaluatorFactory evalRightFactory,
+    public ComparisonEvalFactory(ICopyEvaluatorFactory evalLeftFactory, ICopyEvaluatorFactory evalRightFactory,
             ComparisonKind comparisonKind) {
         this.evalLeftFactory = evalLeftFactory;
         this.evalRightFactory = evalRightFactory;
@@ -28,7 +28,7 @@
     }
 
     @Override
-    public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+    public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
         DataOutput out = output.getDataOutput();
         switch (comparisonKind) {
             // Should we do any normalization?
@@ -57,8 +57,8 @@
     }
 
     static class EqualityComparisonEvaluator extends AbstractComparisonEvaluator {
-        public EqualityComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public EqualityComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
@@ -85,8 +85,8 @@
     }
 
     static class InequalityComparisonEvaluator extends AbstractComparisonEvaluator {
-        public InequalityComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public InequalityComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
@@ -113,8 +113,8 @@
     }
 
     static class GreaterThanOrEqualComparisonEvaluator extends AbstractComparisonEvaluator {
-        public GreaterThanOrEqualComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public GreaterThanOrEqualComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
@@ -142,8 +142,8 @@
     }
 
     static class GreaterThanComparisonEvaluator extends AbstractComparisonEvaluator {
-        public GreaterThanComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public GreaterThanComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
@@ -170,8 +170,8 @@
     }
 
     static class LessThanOrEqualComparisonEvaluator extends AbstractComparisonEvaluator {
-        public LessThanOrEqualComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public LessThanOrEqualComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
@@ -199,8 +199,8 @@
     }
 
     static class LessThanComparisonEvaluator extends AbstractComparisonEvaluator {
-        public LessThanComparisonEvaluator(DataOutput out, IEvaluatorFactory evalLeftFactory,
-                IEvaluatorFactory evalRightFactory) throws AlgebricksException {
+        public LessThanComparisonEvaluator(DataOutput out, ICopyEvaluatorFactory evalLeftFactory,
+                ICopyEvaluatorFactory evalRightFactory) throws AlgebricksException {
             super(out, evalLeftFactory, evalRightFactory);
         }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
index 4d3b9cd..ab3c1e7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
@@ -1,46 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ABooleanConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "boolean", 1,
-            false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ABooleanConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of boolean";
                     private final byte[] TRUE = { 0, 4, 't', 'r', 'u', 'e' };
                     private final byte[] FALSE = { 0, 5, 'f', 'a', 'l', 's', 'e' };
@@ -59,7 +78,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 if (utf8BinaryComparator.compare(serString, 1, outInput.getLength(), TRUE, 0, 6) == 0) {
                                     booleanSerde.serialize(ABoolean.TRUE, out);
@@ -86,7 +105,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.BOOLEAN_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
index 9aee67e..0c00337 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
@@ -1,46 +1,66 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ACircle;
 import edu.uci.ics.asterix.om.base.AMutableCircle;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ACircleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "circle", 1, true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ACircleConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of circle";
                     private AMutablePoint aPoint = new AMutablePoint(0, 0);
                     private AMutableCircle aCircle = new AMutableCircle(null, 0);
@@ -57,7 +77,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 int commaIndex = s.indexOf(',');
@@ -81,7 +101,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CIRCLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
index c2aaca8..a1f9911 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
@@ -1,51 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADate;
 import edu.uci.ics.asterix.om.base.AMutableDate;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ADateConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "date", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ADateConstructorDescriptor();
+        }
+    };
+
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
-                    private int offset;
-                    private short year, month, day, hour, minute, value;
-                    private byte timezonePart = 0;
-                    private boolean positive = true;
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of date";
-                    private AMutableDate aDate = new AMutableDate(0, 0, 0, 0);
+                    private AMutableDate aDate = new AMutableDate(0);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ADATE);
@@ -59,75 +78,43 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
-                                offset = 3;
 
-                                if (serString[offset] == '-') {
-                                    offset++;
-                                    positive = false;
+                                int stringLength = (serString[1] & 0xff << 8) + (serString[2] & 0xff << 0);
+
+                                int startOffset = 3;
+                                while (serString[startOffset] == ' ') {
+                                    startOffset++;
+                                }
+                                int endOffset = stringLength - 1 + 3;
+                                while (serString[endOffset] == ' ') {
+                                    endOffset--;
                                 }
 
-                                if (serString[offset + 4] != '-' || serString[offset + 7] != '-')
-                                    throw new AlgebricksException(errorMessage);
+                                long chrononTimeInMs = ADateParserFactory.parseDatePart(serString, startOffset,
+                                        endOffset - startOffset + 1);
 
-                                year = getValue(serString, offset, 4);
-                                month = getValue(serString, offset + 5, 2);
-                                day = getValue(serString, offset + 8, 2);
-
-                                if (year < 0 || year > 9999 || month < 0 || month > 12 || day < 0 || day > 31)
-                                    throw new AlgebricksException(errorMessage);
-
-                                offset += 10;
-
-                                if (outInput.getLength() > offset) {
-                                    if (serString[offset] == 'Z')
-                                        timezonePart = 0;
-                                    else {
-                                        if ((serString[offset] != '+' && serString[offset] != '-')
-                                                || (serString[offset + 3] != ':'))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        hour = getValue(serString, offset + 1, 2);
-                                        minute = getValue(serString, offset + 4, 2);
-
-                                        if (hour < 0 || hour > 24 || (hour == 24 && minute != 0)
-                                                || (minute != 0 && minute != 15 && minute != 30 && minute != 45))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        if (serString[offset] == '-')
-                                            timezonePart = (byte) -((hour * 4) + minute / 15);
-                                        else
-                                            timezonePart = (byte) ((hour * 4) + minute / 15);
-                                    }
-
+                                short temp = 0;
+                                if (chrononTimeInMs < 0
+                                        && chrononTimeInMs % GregorianCalendarSystem.CHRONON_OF_DAY != 0) {
+                                    temp = 1;
                                 }
 
-                                if (!positive)
-                                    year *= -1;
+                                aDate.setValue((int) (chrononTimeInMs / GregorianCalendarSystem.CHRONON_OF_DAY) - temp);
 
-                                aDate.setValue(year, month, day, timezonePart);
                                 dateSerde.serialize(aDate, out);
-                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                            } else if (serString[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, out);
-                            else
+                            } else {
                                 throw new AlgebricksException(errorMessage);
+                            }
                         } catch (IOException e1) {
                             throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
                         }
                     }
-
-                    private short getValue(byte[] b, int offset, int numberOfDigits) throws AlgebricksException {
-                        value = 0;
-                        for (int i = 0; i < numberOfDigits; i++) {
-                            if ((b[offset] >= '0' && b[offset] <= '9'))
-                                value = (short) (value * 10 + b[offset++] - '0');
-                            else
-                                throw new AlgebricksException(errorMessage);
-
-                        }
-                        return value;
-                    }
                 };
             }
         };
@@ -135,7 +122,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DATE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
index 5b79309..83f4c8b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
@@ -1,52 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADateTime;
 import edu.uci.ics.asterix.om.base.AMutableDateTime;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ADateTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "datetime", 1,
-            false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ADateTimeConstructorDescriptor();
+        }
+    };
+
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
-                    private int offset;
-                    private short hour, minute, second, msecond, year, month, day, timezoneHour, timezoneMinute, value;
-                    private byte timezonePart = 0;
-                    private boolean positive = true;
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of datetime";
-                    private AMutableDateTime aDateTime = new AMutableDateTime(0, 0, 0, 0, 0, 0, 0, 0, 0);
+                    private AMutableDateTime aDateTime = new AMutableDateTime(0L);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ADATETIME);
@@ -60,102 +78,41 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
 
-                                offset = 3;
-                                if (serString[offset] == '-') {
-                                    offset++;
-                                    positive = false;
-                                }
+                                int stringLength = (serString[1] & 0xff << 8) + (serString[2] & 0xff << 0);
 
-                                if (serString[offset + 4] != '-' || serString[offset + 7] != '-')
-                                    throw new AlgebricksException(errorMessage);
+                                // +1 if it is negative (-)
+                                short timeOffset = (short) ((serString[3] == '-') ? 1 : 0);
 
-                                year = getValue(serString, offset, 4);
-                                month = getValue(serString, offset + 5, 2);
-                                day = getValue(serString, offset + 8, 2);
+                                timeOffset += 8;
 
-                                if (year < 0 || year > 9999 || month < 0 || month > 12 || day < 0 || day > 31)
-                                    throw new AlgebricksException(errorMessage);
-
-                                if (!positive)
-                                    year *= -1;
-
-                                if (serString[offset + 10] != 'T')
-                                    throw new AlgebricksException(errorMessage);
-
-                                offset += 11;
-
-                                if (serString[offset + 2] != ':' || serString[offset + 5] != ':')
-                                    throw new AlgebricksException(errorMessage);
-
-                                hour = getValue(serString, offset, 2);
-                                minute = getValue(serString, offset + 3, 2);
-                                second = getValue(serString, offset + 6, 2);
-
-                                msecond = 0;
-                                if (serString[offset + 8] == ':') {
-                                    msecond = getValue(serString, offset + 9, 3);
-                                    if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                                            || msecond < 0 || msecond > 999
-                                            || (hour == 24 && (minute != 0 || second != 0 || msecond != 0)))
-                                        throw new AlgebricksException(errorMessage);
-                                    offset += 12;
-                                } else {
-                                    if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                                            || (hour == 24 && (minute != 0 || second != 0)))
-                                        throw new AlgebricksException(errorMessage);
-                                    offset += 8;
-                                }
-
-                                if (outInput.getLength() > offset) {
-                                    if (serString[offset] == 'Z')
-                                        timezonePart = 0;
-                                    else {
-                                        if ((serString[offset] != '+' && serString[offset] != '-')
-                                                || (serString[offset + 3] != ':'))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        timezoneHour = getValue(serString, offset + 1, 2);
-                                        timezoneMinute = getValue(serString, offset + 4, 2);
-
-                                        if (timezoneHour < 0
-                                                || timezoneHour > 24
-                                                || (timezoneHour == 24 && timezoneMinute != 0)
-                                                || (timezoneMinute != 0 && timezoneMinute != 15 && timezoneMinute != 30 && timezoneMinute != 45))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        if (serString[offset] == '-')
-                                            timezonePart = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
-                                        else
-                                            timezonePart = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
+                                if (serString[3 + timeOffset] != 'T') {
+                                    timeOffset += 2;
+                                    if (serString[3 + timeOffset] != 'T') {
+                                        throw new AlgebricksException(errorMessage + ": missing T");
                                     }
-
                                 }
 
-                                aDateTime.setValue(year, month, day, hour, minute, second, msecond, 0, timezonePart);
+                                long chrononTimeInMs = ADateParserFactory.parseDatePart(serString, 3, timeOffset);
+
+                                chrononTimeInMs += ATimeParserFactory.parseTimePart(serString, 3 + timeOffset + 1,
+                                        stringLength - timeOffset - 1);
+
+                                aDateTime.setValue(chrononTimeInMs);
                                 datetimeSerde.serialize(aDateTime, out);
-                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                            } else if (serString[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, out);
-                            else
+                            } else {
                                 throw new AlgebricksException(errorMessage);
+                            }
                         } catch (IOException e1) {
                             throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
                         }
                     }
-
-                    private short getValue(byte[] b, int offset, int numberOfDigits) throws AlgebricksException {
-                        value = 0;
-                        for (int i = 0; i < numberOfDigits; i++) {
-                            if ((b[offset] >= '0' && b[offset] <= '9'))
-                                value = (short) (value * 10 + b[offset++] - '0');
-                            else
-                                throw new AlgebricksException(errorMessage);
-
-                        }
-                        return value;
-                    }
                 };
             }
         };
@@ -163,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DATETIME_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
index 48a35e4..0689fd7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
@@ -1,48 +1,67 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ADoubleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "double", 1,
-            false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ADoubleConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of double";
                     private final byte[] POSITIVE_INF = { 0, 3, 'I', 'N', 'F' };
                     private final byte[] NEGATIVE_INF = { 0, 4, '-', 'I', 'N', 'F' };
@@ -70,7 +89,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
 
                                 if (utf8BinaryComparator
@@ -192,7 +211,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DOUBLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
index f014ad6..a84ae1d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
@@ -1,50 +1,66 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
-import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADuration;
 import edu.uci.ics.asterix.om.base.AMutableDuration;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ADurationConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "duration", 1,
-            false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ADurationConstructorDescriptor();
+        }
+    };
+
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
-                    private int offset;
-                    private int value = 0, hour = 0, minute = 0, second = 0, year = 0, month = 0, day = 0;
-                    private boolean isYear = true, isMonth = true, isDay = true, isHour = true, isMinute = true,
-                            isSecond = true, isTime = false, timeItem = true, positive = true;
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of duration";
                     private AMutableDuration aDuration = new AMutableDuration(0, 0);
                     @SuppressWarnings("unchecked")
@@ -60,121 +76,22 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
+
                             if (serString[0] == SER_STRING_TYPE_TAG) {
-                                offset = 3;
-                                if (serString[offset] == '-') {
-                                    offset++;
-                                    positive = false;
-                                }
-                                if (serString[offset++] != 'D')
-                                    throw new AlgebricksException(errorMessage);
 
-                                for (; offset < outInput.getLength(); offset++) {
-                                    if (serString[offset] >= '0' && serString[offset] <= '9')
-                                        value = value * 10 + serString[offset] - '0';
-                                    else {
-                                        switch (serString[offset]) {
-                                            case 'Y':
-                                                if (isYear) {
-                                                    year = value;
-                                                    isYear = false;
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
-                                            case 'M':
-                                                if (!isTime) {
-                                                    if (isMonth) {
-                                                        if (value < 0 || value > 11)
-                                                            throw new AlgebricksException(errorMessage);
-                                                        else {
-                                                            month = value;
-                                                            isMonth = false;
-                                                        }
-                                                    } else
-                                                        throw new AlgebricksException(errorMessage);
-                                                } else if (isMinute) {
-                                                    if (value < 0 || value > 59)
-                                                        throw new AlgebricksException(errorMessage);
-                                                    else {
-                                                        minute = value;
-                                                        isMinute = false;
-                                                        timeItem = false;
-                                                    }
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
-                                            case 'D':
-                                                if (isDay) {
-                                                    if (value < 0 || value > 30)
-                                                        throw new AlgebricksException(errorMessage);
-                                                    else {
-                                                        day = value;
-                                                        isDay = false;
-                                                    }
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
-                                            case 'T':
-                                                if (!isTime) {
-                                                    isTime = true;
-                                                    timeItem = true;
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
+                                int stringLength = (serString[1] & 0xff << 8) + (serString[2] & 0xff << 0);
 
-                                            case 'H':
-                                                if (isHour) {
-                                                    if (value < 0 || value > 23)
-                                                        throw new AlgebricksException(errorMessage);
-                                                    else {
-                                                        hour = value;
-                                                        isHour = false;
-                                                        timeItem = false;
-                                                    }
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
-                                            case 'S':
-                                                if (isSecond) {
-                                                    if (value < 0 || value > 59)
-                                                        throw new AlgebricksException(errorMessage);
-                                                    else {
-                                                        second = value;
-                                                        isSecond = false;
-                                                        timeItem = false;
-                                                    }
-                                                } else
-                                                    throw new AlgebricksException(errorMessage);
-                                                break;
-                                            default:
-                                                throw new AlgebricksException(errorMessage);
+                                ADurationParserFactory.parseDuration(serString, 3, stringLength, aDuration);
 
-                                        }
-                                        value = 0;
-                                    }
-                                }
-
-                                if (isTime && timeItem)
-                                    throw new AlgebricksException(errorMessage);
-
-                                if (isYear && isMonth && isDay && !isTime)
-                                    throw new AlgebricksException(errorMessage);
-
-                                if (positive)
-                                    aDuration.setValue(year * 12 + month, day * 24 * 3600 + 3600 * hour + 60 * minute
-                                            + second);
-                                else
-                                    aDuration.setValue(-1 * (year * 12 + month), -1
-                                            * (day * 24 * 3600 + 3600 * hour + 60 * minute + second));
                                 durationSerde.serialize(aDuration, out);
-                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                            } else if (serString[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, out);
-                            else
+                            } else {
                                 throw new AlgebricksException(errorMessage);
-
-                        } catch (IOException e1) {
-                            throw new AlgebricksException(errorMessage);
+                            }
+                        } catch (Exception e1) {
+                            throw new AlgebricksException(e1);
                         }
                     }
                 };
@@ -184,7 +101,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DURATION_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
index 0af6328..dde302c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
@@ -1,46 +1,66 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AFloatConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "float", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AFloatConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of float";
                     private final byte[] POSITIVE_INF = { 0, 3, 'I', 'N', 'F' };
                     private final byte[] NEGATIVE_INF = { 0, 4, '-', 'I', 'N', 'F' };
@@ -69,7 +89,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 if (utf8BinaryComparator
                                         .compare(serString, 1, outInput.getLength(), POSITIVE_INF, 0, 5) == 0) {
@@ -194,6 +214,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FLOAT_CONSTRUCTOR;
     }
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
index 5aa7b02..3cb9d46 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
@@ -1,45 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt16;
 import edu.uci.ics.asterix.om.base.AMutableInt16;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AInt16ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int16", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AInt16ConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private short value;
                     private int offset;
                     private boolean positive;
@@ -58,7 +78,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 offset = 3;
                                 value = 0;
@@ -100,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT16_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
index 41dea45..0091bbb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
@@ -1,45 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AInt32ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int32", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AInt32ConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private int value, offset;
                     private boolean positive;
                     private String errorMessage = "This can not be an instance of int32";
@@ -57,7 +77,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 offset = 3;
                                 value = 0;
@@ -99,7 +119,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT32_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
index 2528f11..6fa4925 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
@@ -1,45 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AInt64ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int64", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AInt64ConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private long value;
                     private int offset;
                     private boolean positive;
@@ -58,7 +78,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 offset = 3;
                                 value = 0;
@@ -78,8 +98,9 @@
                                     else
                                         throw new AlgebricksException(errorMessage);
                                 }
-                                if (value < 0)
+                                if (value < 0 && value != -9223372036854775808L) {
                                     throw new AlgebricksException(errorMessage);
+                                }
                                 if (value > 0 && !positive)
                                     value *= -1;
 
@@ -100,7 +121,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT64_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
index acd7d12..c14b4fa 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
@@ -1,45 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt8;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AInt8ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int8", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AInt8ConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private byte value;
                     private int offset;
                     private boolean positive;
@@ -58,7 +78,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 offset = 3;
                                 value = 0;
@@ -100,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT8_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateConstructorDescriptor.java
new file mode 100644
index 0000000..0414874
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateConstructorDescriptor.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalFromDateConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-from-date", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalFromDateConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+                    //TODO: Where to move and fix these?
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                // start date
+                                long intervalStart = ADateParserFactory.parseDatePart(argOut0.getByteArray(), 3,
+                                        stringLength) / GregorianCalendarSystem.CHRONON_OF_DAY;
+
+                                // end date
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                long intervalEnd = ADateParserFactory.parseDatePart(argOut1.getByteArray(), 3,
+                                        stringLength) / GregorianCalendarSystem.CHRONON_OF_DAY;
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.DATE.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateTimeConstructorDescriptor.java
new file mode 100644
index 0000000..6b3e2b6
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromDateTimeConstructorDescriptor.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalFromDateTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-from-datetime", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalFromDateTimeConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+                    //TODO: Where to move and fix these?
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                                // start datetime
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                // get offset for time part: +1 if it is negative (-)
+                                short timeOffset = (short) ((argOut0.getByteArray()[3] == '-') ? 1 : 0);
+                                timeOffset += 8;
+                                if (argOut0.getByteArray()[3 + timeOffset] != 'T') {
+                                    timeOffset += 2;
+                                    if (argOut0.getByteArray()[3 + timeOffset] != 'T') {
+                                        throw new AlgebricksException(errorMessage + ": missing T");
+                                    }
+                                }
+
+                                long intervalStart = ADateParserFactory.parseDatePart(argOut0.getByteArray(), 3,
+                                        timeOffset);
+                                intervalStart += ATimeParserFactory.parseTimePart(argOut0.getByteArray(),
+                                        3 + timeOffset + 1, stringLength - timeOffset - 1);
+
+                                // end datetime
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                // get offset for time part: +1 if it is negative (-)
+                                timeOffset = (short) ((argOut1.getByteArray()[3] == '-') ? 1 : 0);
+                                timeOffset += 8;
+                                if (argOut1.getByteArray()[3 + timeOffset] != 'T') {
+                                    timeOffset += 2;
+                                    if (argOut1.getByteArray()[3 + timeOffset] != 'T') {
+                                        throw new AlgebricksException(errorMessage + ": missing T");
+                                    }
+                                }
+
+                                long intervalEnd = ADateParserFactory.parseDatePart(argOut1.getByteArray(), 3,
+                                        timeOffset);
+                                intervalEnd += ATimeParserFactory.parseTimePart(argOut1.getByteArray(),
+                                        3 + timeOffset + 1, stringLength - timeOffset - 1);
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.DATETIME.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java
new file mode 100644
index 0000000..042a33b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalFromTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-from-time", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalFromTimeConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+                    //TODO: Where to move and fix these?
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                                // start date
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                long intervalStart = ATimeParserFactory.parseTimePart(argOut0.getByteArray(), 3,
+                                        stringLength);
+                                if (intervalStart < 0) {
+                                    intervalStart += GregorianCalendarSystem.CHRONON_OF_DAY;
+                                }
+
+                                // end date
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                long intervalEnd = ATimeParserFactory.parseTimePart(argOut1.getByteArray(), 3,
+                                        stringLength);
+                                if (intervalEnd < 0) {
+                                    intervalEnd += GregorianCalendarSystem.CHRONON_OF_DAY;
+                                }
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.TIME.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateConstructorDescriptor.java
new file mode 100644
index 0000000..d5a0db9
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateConstructorDescriptor.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalStartFromDateConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-start-from-date", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalStartFromDateConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0L);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+
+                                // start date
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                long intervalStart = ADateParserFactory.parseDatePart(argOut0.getByteArray(), 3,
+                                        stringLength);
+
+                                // duration
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                ADurationParserFactory
+                                        .parseDuration(argOut1.getByteArray(), 3, stringLength, aDuration);
+
+                                long intervalEnd = DurationArithmeticOperations.addDuration(intervalStart,
+                                        aDuration.getMonths(), aDuration.getMilliseconds());
+
+                                intervalStart = GregorianCalendarSystem.getChrononInDays(intervalStart);
+                                intervalEnd = GregorianCalendarSystem.getChrononInDays(intervalEnd);
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.DATE.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateTimeConstructorDescriptor.java
new file mode 100644
index 0000000..d821fc3
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromDateTimeConstructorDescriptor.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADateParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalStartFromDateTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-start-from-datetime", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalStartFromDateTimeConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0L);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                                // start date
+
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                // get offset for time part: +1 if it is negative (-)
+                                short timeOffset = (short) ((argOut0.getByteArray()[3] == '-') ? 1 : 0);
+
+                                timeOffset += 8;
+
+                                if (argOut0.getByteArray()[3 + timeOffset] != 'T') {
+                                    timeOffset += 2;
+                                    if (argOut0.getByteArray()[3 + timeOffset] != 'T') {
+                                        throw new AlgebricksException(errorMessage + ": missing T");
+                                    }
+                                }
+
+                                long intervalStart = ADateParserFactory.parseDatePart(argOut0.getByteArray(), 3,
+                                        timeOffset);
+                                intervalStart += ATimeParserFactory.parseTimePart(argOut0.getByteArray(),
+                                        3 + timeOffset + 1, stringLength - timeOffset - 1);
+
+                                // duration
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                ADurationParserFactory
+                                        .parseDuration(argOut1.getByteArray(), 3, stringLength, aDuration);
+
+                                long intervalEnd = DurationArithmeticOperations.addDuration(intervalStart,
+                                        aDuration.getMonths(), aDuration.getMilliseconds());
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.DATETIME.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromTimeConstructorDescriptor.java
new file mode 100644
index 0000000..8135598
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalStartFromTimeConstructorDescriptor.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.constructors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInterval;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.AMutableInterval;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ADurationParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AIntervalStartFromTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-start-from-time", 2);
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AIntervalStartFromTimeConstructorDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+                    private String errorMessage = "This can not be an instance of interval (from Date)";
+
+                    private AMutableInterval aInterval = new AMutableInterval(0L, 0L, (byte) 0);
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0L);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInterval> intervalSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINTERVAL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        argOut1.reset();
+                        eval0.evaluate(tuple);
+                        eval1.evaluate(tuple);
+
+                        try {
+
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else if (argOut0.getByteArray()[0] == SER_STRING_TYPE_TAG
+                                    && argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                                // start time
+
+                                int stringLength = (argOut0.getByteArray()[1] & 0xff << 8)
+                                        + (argOut0.getByteArray()[2] & 0xff << 0);
+
+                                int intervalStart = ATimeParserFactory.parseTimePart(argOut0.getByteArray(), 3,
+                                        stringLength);
+
+                                if (intervalStart < 0) {
+                                    intervalStart += GregorianCalendarSystem.CHRONON_OF_DAY;
+                                }
+
+                                // duration
+
+                                stringLength = (argOut1.getByteArray()[1] & 0xff << 8)
+                                        + (argOut1.getByteArray()[2] & 0xff << 0);
+
+                                ADurationParserFactory
+                                        .parseDuration(argOut1.getByteArray(), 3, stringLength, aDuration);
+
+                                if (aDuration.getMonths() != 0) {
+                                    throw new AlgebricksException("Cannot add a year-month duration to a time value.");
+                                }
+
+                                int intervalEnd = DurationArithmeticOperations.addDuration(intervalStart,
+                                        aDuration.getMilliseconds());
+
+                                if (intervalEnd > GregorianCalendarSystem.CHRONON_OF_DAY) {
+
+                                    intervalEnd = intervalEnd - (int) (GregorianCalendarSystem.CHRONON_OF_DAY);
+                                }
+
+                                if (intervalEnd < intervalStart) {
+                                    throw new AlgebricksException(
+                                            "Interval end must not be less than the interval start.");
+                                }
+
+                                aInterval.setValue(intervalStart, intervalEnd, ATypeTag.TIME.serialize());
+                                intervalSerde.serialize(aInterval, out);
+                            } else {
+                                throw new AlgebricksException("Wrong format for interval constructor from dates.");
+                            }
+
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
index d13d646..f287141 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
@@ -1,46 +1,66 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.AMutableLine;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ALineConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "line", 1, true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ALineConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of line";
                     private AMutableLine aLine = new AMutableLine(null, null);
                     private AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
@@ -57,7 +77,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 int commaIndex = s.indexOf(',');
@@ -84,7 +104,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LINE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
index a706b7b..df00c74 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
@@ -1,47 +1,67 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ANullConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "null", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ANullConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of null";
                     private final byte[] NULL = { 0, 4, 'n', 'u', 'l', 'l' };
                     IBinaryComparator utf8BinaryComparator = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE
-                    .createBinaryComparator();
+                            .createBinaryComparator();
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ANULL);
@@ -52,7 +72,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 if (utf8BinaryComparator.compare(serString, 1, outInput.getLength(), NULL, 0, 6) == 0) {
                                     nullSerde.serialize(ANull.NULL, out);
@@ -72,7 +92,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NULL_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
index b5b4392..3c9a8b4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
@@ -1,46 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint3D;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.APoint3D;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class APoint3DConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "point3d", 1,
-            true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new APoint3DConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of point3d";
                     private AMutablePoint3D aPoint3D = new AMutablePoint3D(0, 0, 0);
                     @SuppressWarnings("unchecked")
@@ -56,7 +75,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 int firstCommaIndex = s.indexOf(',');
@@ -81,7 +100,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POINT3D_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
index f036207..89c4baf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
@@ -1,45 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class APointConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "point", 1, true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new APointConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of point";
                     private AMutablePoint aPoint = new AMutablePoint(0, 0);
                     @SuppressWarnings("unchecked")
@@ -55,7 +75,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 aPoint.setValue(Double.parseDouble(s.substring(0, s.indexOf(','))),
@@ -76,7 +96,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POINT_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
index ef2ba05..e17a212 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
@@ -1,46 +1,65 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class APolygonConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "polygon", 1,
-            true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_POLYGON_TYPE_TAG = ATypeTag.POLYGON.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new APolygonConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of polygon";
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -52,7 +71,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 String[] points = s.split(" ");
@@ -78,7 +97,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POLYGON_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
index c7e2de7..598ff92 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
@@ -1,47 +1,66 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.ARectangle;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ARectangleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "rectangle", 1,
-            true);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ARectangleConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of rectangle";
                     private AMutableRectangle aRectangle = new AMutableRectangle(null, null);
                     private AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
@@ -58,7 +77,7 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
                                 String s = new String(serString, 3, outInput.getLength() - 3, "UTF-8");
                                 int commaIndex = s.indexOf(',');
@@ -68,11 +87,14 @@
                                 commaIndex = s.indexOf(',', spaceIndex + 1);
                                 aPoint[1].setValue(Double.parseDouble(s.substring(spaceIndex + 1, commaIndex)),
                                         Double.parseDouble(s.substring(commaIndex + 1, s.length())));
-                                if (aPoint[0].getX() > aPoint[1].getX() || aPoint[0].getY() > aPoint[1].getY()) {
+                                if (aPoint[0].getX() > aPoint[1].getX() && aPoint[0].getY() > aPoint[1].getY()) {
+                                    aRectangle.setValue(aPoint[1], aPoint[0]);
+                                } else if (aPoint[0].getX() < aPoint[1].getX() && aPoint[0].getY() < aPoint[1].getY()) {
+                                    aRectangle.setValue(aPoint[0], aPoint[1]);
+                                } else {
                                     throw new IllegalArgumentException(
-                                            "The low point in the rectangle cannot be larger than the high point");
+                                            "Rectangle arugment must be either (bottom left point, top right point) or (top right point, bottom left point)");
                                 }
-                                aRectangle.setValue(aPoint[0], aPoint[1]);
                                 rectangle2DSerde.serialize(aRectangle, out);
                             } else if (serString[0] == SER_NULL_TYPE_TAG)
                                 nullSerde.serialize(ANull.NULL, out);
@@ -89,7 +111,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.RECTANGLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
index 361220e..54ab21f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
@@ -1,43 +1,62 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AStringConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string", 1,
-            false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AStringConstructorDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of string";
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -49,9 +68,9 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
-                                out.write(outInput.getBytes(), outInput.getStartIndex(), outInput.getLength());
+                                out.write(outInput.getByteArray(), outInput.getStartOffset(), outInput.getLength());
                             } else if (serString[0] == SER_NULL_TYPE_TAG)
                                 nullSerde.serialize(ANull.NULL, out);
                             else
@@ -67,7 +86,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
index 0f86b94..f2ad400 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
@@ -1,50 +1,70 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.evaluators.constructors;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableTime;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ATimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "time", 1, false);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ATimeConstructorDescriptor();
+        }
+    };
+
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(outInput);
-                    private int offset;
-                    private short hour, minute, second, msecond, timezoneHour, timezoneMinute, value;
-                    private byte timezonePart = 0;
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
                     private String errorMessage = "This can not be an instance of time";
-                    private AMutableTime aTime = new AMutableTime(0, 0, 0, 0, 0, 0);
+                    private AMutableTime aTime = new AMutableTime(0);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ATIME);
@@ -58,77 +78,31 @@
                         try {
                             outInput.reset();
                             eval.evaluate(tuple);
-                            byte[] serString = outInput.getBytes();
+                            byte[] serString = outInput.getByteArray();
                             if (serString[0] == SER_STRING_TYPE_TAG) {
-                                offset = 3;
-                                if (serString[offset + 2] != ':' || serString[offset + 5] != ':')
-                                    throw new AlgebricksException(errorMessage);
 
-                                hour = getValue(serString, offset, 2);
-                                minute = getValue(serString, offset + 3, 2);
-                                second = getValue(serString, offset + 6, 2);
-                                msecond = 0;
+                                int stringLength = (serString[1] & 0xff << 8) + (serString[2] & 0xff << 0);
 
-                                if (serString[offset + 8] == ':') {
-                                    msecond = getValue(serString, offset + 9, 3);
-                                    if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                                            || msecond < 0 || msecond > 999
-                                            || (hour == 24 && (minute != 0 || second != 0 || msecond != 0)))
-                                        throw new AlgebricksException(errorMessage);
-                                    offset += 12;
-                                } else {
-                                    if (hour < 0 || hour > 24 || minute < 0 || minute > 59 || second < 0 || second > 59
-                                            || (hour == 24 && (minute != 0 || second != 0)))
-                                        throw new AlgebricksException(errorMessage);
-                                    offset += 8;
+                                int chrononTimeInMs = ATimeParserFactory.parseTimePart(serString, 3, stringLength);
+
+                                if (chrononTimeInMs < 0) {
+                                    chrononTimeInMs += GregorianCalendarSystem.CHRONON_OF_DAY;
                                 }
 
-                                if (outInput.getLength() > offset) {
-                                    if (serString[offset] == 'Z')
-                                        timezonePart = 0;
-                                    else {
-                                        if ((serString[offset] != '+' && serString[offset] != '-')
-                                                || (serString[offset + 3] != ':'))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        timezoneHour = getValue(serString, offset + 1, 2);
-                                        timezoneMinute = getValue(serString, offset + 4, 2);
-
-                                        if (timezoneHour < 0
-                                                || timezoneHour > 24
-                                                || (timezoneHour == 24 && timezoneMinute != 0)
-                                                || (timezoneMinute != 0 && timezoneMinute != 15 && timezoneMinute != 30 && timezoneMinute != 45))
-                                            throw new AlgebricksException(errorMessage);
-
-                                        if (serString[offset] == '-')
-                                            timezonePart = (byte) -((timezoneHour * 4) + timezoneMinute / 15);
-                                        else
-                                            timezonePart = (byte) ((timezoneHour * 4) + timezoneMinute / 15);
-                                    }
-                                }
-
-                                aTime.setValue(hour, minute, second, msecond, 0, timezonePart);
+                                aTime.setValue(chrononTimeInMs);
                                 timeSerde.serialize(aTime, out);
 
-                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                            } else if (serString[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, out);
-                            else
+                            } else {
                                 throw new AlgebricksException(errorMessage);
+                            }
                         } catch (IOException e1) {
                             throw new AlgebricksException(errorMessage);
+                        } catch (Exception e2) {
+                            throw new AlgebricksException(e2);
                         }
                     }
-
-                    private short getValue(byte[] b, int offset, int numberOfDigits) throws AlgebricksException {
-                        value = 0;
-                        for (int i = 0; i < numberOfDigits; i++) {
-                            if ((b[offset] >= '0' && b[offset] <= '9'))
-                                value = (short) (value * 10 + b[offset++] - '0');
-                            else
-                                throw new AlgebricksException(errorMessage);
-                        }
-                        return value;
-                    }
                 };
             }
         };
@@ -136,7 +110,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.TIME_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java
new file mode 100644
index 0000000..a54e3b0
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java
@@ -0,0 +1,118 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.util.Arrays;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public abstract class AbstractBinaryStringBoolEval implements ICopyEvaluator {
+
+    private DataOutput dout;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+    private ICopyEvaluator evalLeft;
+    private ICopyEvaluator evalRight;
+    private final FunctionIdentifier funcID;
+    @SuppressWarnings({ "rawtypes" })
+    private ISerializerDeserializer boolSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+    public AbstractBinaryStringBoolEval(DataOutput dout, ICopyEvaluatorFactory evalLeftFactory,
+            ICopyEvaluatorFactory evalRightFactory, FunctionIdentifier funcID) throws AlgebricksException {
+        this.dout = dout;
+        this.evalLeft = evalLeftFactory.createEvaluator(array0);
+        this.evalRight = evalRightFactory.createEvaluator(array1);
+        this.funcID = funcID;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        array0.reset();
+        evalLeft.evaluate(tuple);
+        array1.reset();
+        evalRight.evaluate(tuple);
+
+        try {
+            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG && array1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                boolSerde.serialize(ABoolean.TRUE, dout);
+                return;
+            } else if ((array0.getByteArray()[0] == SER_NULL_TYPE_TAG && array1.getByteArray()[0] == SER_STRING_TYPE_TAG)
+                    || (array0.getByteArray()[0] == SER_STRING_TYPE_TAG && array1.getByteArray()[0] == SER_NULL_TYPE_TAG)) {
+                boolSerde.serialize(ABoolean.FALSE, dout);
+                return;
+            } else if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG
+                    || array1.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                throw new AlgebricksException(funcID.getName() + ": expects input type STRING or NULL, but got "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]) + " and "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array1.getByteArray()[0]) + ")!");
+            }
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+
+        byte[] b1 = array0.getByteArray();
+        byte[] b2 = array1.getByteArray();
+
+        int lLen = array0.getLength();
+        int rLen = array1.getLength();
+
+        int lStart = array0.getStartOffset();
+        int rStart = array1.getStartOffset();
+        ABoolean res = compute(b1, lLen, lStart, b2, rLen, rStart, array0, array1) ? ABoolean.TRUE : ABoolean.FALSE;
+        try {
+            boolSerde.serialize(res, dout);
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    protected abstract boolean compute(byte[] lBytes, int lLen, int lStart, byte[] rBytes, int rLen, int rStart,
+            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) throws AlgebricksException;
+
+    protected String toRegex(AString pattern) {
+        StringBuilder sb = new StringBuilder();
+        String str = pattern.getStringValue();
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '\\' && (i < str.length() - 1) && (str.charAt(i + 1) == '_' || str.charAt(i + 1) == '%')) {
+                sb.append(str.charAt(i + 1));
+                ++i;
+            } else if (c == '%') {
+                sb.append(".*");
+            } else if (c == '_') {
+                sb.append(".");
+            } else {
+                if (Arrays.binarySearch(reservedRegexChars, c) >= 0) {
+                    sb.append('\\');
+                }
+                sb.append(c);
+            }
+        }
+        return sb.toString();
+    }
+
+    private final static char[] reservedRegexChars = new char[] { '\\', '(', ')', '[', ']', '{', '}', '.', '^', '$',
+            '*', '|' };
+    static {
+        Arrays.sort(reservedRegexChars);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java
new file mode 100644
index 0000000..895e575
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java
@@ -0,0 +1,231 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+@SuppressWarnings("serial")
+public abstract class AbstractNumericArithmeticEval extends AbstractScalarFunctionDynamicDescriptor {
+
+    abstract protected long evaluateInteger(long lhs, long rhs) throws HyracksDataException;
+
+    abstract protected double evaluateDouble(double lhs, double rhs) throws HyracksDataException;
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    // one temp. buffer re-used by both children
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalLeft = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator evalRight = args[1].createEvaluator(argOut);
+                    private double[] operandsFloating = new double[args.length];
+                    private long[] operandsInteger = new long[args.length];
+                    private int resultType;
+                    static protected final int typeInt8 = 1;
+                    static protected final int typeInt16 = 2;
+                    static protected final int typeInt32 = 3;
+                    static protected final int typeInt64 = 4;
+                    static protected final int typeFloat = 5;
+                    static protected final int typeDouble = 6;
+
+                    protected AMutableFloat aFloat = new AMutableFloat(0);
+                    protected AMutableDouble aDouble = new AMutableDouble(0);
+                    protected AMutableInt64 aInt64 = new AMutableInt64(0);
+                    protected AMutableInt32 aInt32 = new AMutableInt32(0);
+                    protected AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    protected AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    private ATypeTag typeTag;
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        try {
+                            resultType = 0;
+                            int currentType = 0;
+                            for (int i = 0; i < args.length; i++) {
+                                argOut.reset();
+                                if (i == 0)
+                                    evalLeft.evaluate(tuple);
+                                else
+                                    evalRight.evaluate(tuple);
+                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]);
+                                switch (typeTag) {
+                                    case INT8: {
+                                        currentType = typeInt8;
+                                        operandsInteger[i] = AInt8SerializerDeserializer.getByte(argOut.getByteArray(),
+                                                1);
+                                        operandsFloating[i] = AInt8SerializerDeserializer.getByte(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT16: {
+                                        currentType = typeInt16;
+                                        operandsInteger[i] = AInt16SerializerDeserializer.getShort(
+                                                argOut.getByteArray(), 1);
+                                        operandsFloating[i] = AInt16SerializerDeserializer.getShort(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT32: {
+                                        currentType = typeInt32;
+                                        operandsInteger[i] = AInt32SerializerDeserializer.getInt(argOut.getByteArray(),
+                                                1);
+                                        operandsFloating[i] = AInt32SerializerDeserializer.getInt(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT64: {
+                                        currentType = typeInt64;
+                                        operandsInteger[i] = AInt64SerializerDeserializer.getLong(
+                                                argOut.getByteArray(), 1);
+                                        operandsFloating[i] = AInt64SerializerDeserializer.getLong(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case FLOAT: {
+                                        currentType = typeFloat;
+                                        operandsFloating[i] = AFloatSerializerDeserializer.getFloat(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case DOUBLE: {
+                                        currentType = typeDouble;
+                                        operandsFloating[i] = ADoubleSerializerDeserializer.getDouble(
+                                                argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case NULL: {
+                                        serde = AqlSerializerDeserializerProvider.INSTANCE
+                                                .getSerializerDeserializer(BuiltinType.ANULL);
+                                        serde.serialize(ANull.NULL, out);
+                                        return;
+                                    }
+                                    default: {
+                                        throw new NotImplementedException(getIdentifier().getName()
+                                                + (i == 0 ? ": Left" : ": Right")
+                                                + " operand expects INT8/INT16/INT32/INT64/FLOAT/DOUBLE/NULL, but got "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                        .getByteArray()[0]));
+                                    }
+                                }
+
+                                if (resultType < currentType) {
+                                    resultType = currentType;
+                                }
+                            }
+
+                            long lres = 0;
+                            double dres = 0;
+                            switch (resultType) {
+                                case typeInt8:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.AINT8);
+                                    lres = evaluateInteger(operandsInteger[0], operandsInteger[1]);
+                                    if (lres > Byte.MAX_VALUE) {
+                                        throw new AlgebricksException("Overflow happened.");
+                                    }
+                                    if (lres < Byte.MIN_VALUE) {
+                                        throw new AlgebricksException("Underflow happened.");
+                                    }
+                                    aInt8.setValue((byte) lres);
+                                    serde.serialize(aInt8, out);
+                                    break;
+                                case typeInt16:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.AINT16);
+                                    lres = evaluateInteger(operandsInteger[0], operandsInteger[1]);
+                                    if (lres > Short.MAX_VALUE) {
+                                        throw new AlgebricksException("Overflow happened.");
+                                    }
+                                    if (lres < Short.MIN_VALUE) {
+                                        throw new AlgebricksException("Underflow happened.");
+                                    }
+                                    aInt16.setValue((short) lres);
+                                    serde.serialize(aInt16, out);
+                                    break;
+                                case typeInt32:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.AINT32);
+                                    lres = evaluateInteger(operandsInteger[0], operandsInteger[1]);
+                                    if (lres > Integer.MAX_VALUE) {
+                                        throw new AlgebricksException("Overflow happened.");
+                                    }
+                                    if (lres < Integer.MIN_VALUE) {
+                                        throw new AlgebricksException("Underflow happened.");
+                                    }
+                                    aInt32.setValue((int) lres);
+                                    serde.serialize(aInt32, out);
+                                    break;
+                                case typeInt64:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.AINT64);
+                                    lres = evaluateInteger(operandsInteger[0], operandsInteger[1]);
+                                    aInt64.setValue(lres);
+                                    serde.serialize(aInt64, out);
+                                    break;
+                                case typeFloat:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                    dres = evaluateDouble(operandsFloating[0], operandsFloating[1]);
+                                    if (dres > Float.MAX_VALUE) {
+                                        throw new AlgebricksException("Overflow happened.");
+                                    }
+                                    if (dres < -Float.MAX_VALUE) {
+                                        throw new AlgebricksException("Underflow happened.");
+                                    }
+                                    aFloat.setValue((float) dres);
+                                    serde.serialize(aFloat, out);
+                                    break;
+                                case typeDouble:
+                                    serde = AqlSerializerDeserializerProvider.INSTANCE
+                                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                    aDouble.setValue(evaluateDouble(operandsFloating[0], operandsFloating[1]));
+                                    serde.serialize(aDouble, out);
+                                    break;
+                            }
+                        } catch (HyracksDataException hde) {
+                            throw new AlgebricksException(hde);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java
new file mode 100644
index 0000000..ce9ecd2
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java
@@ -0,0 +1,179 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * @author ilovesoup
+ */
+public abstract class AbstractQuadStringStringEval implements ICopyEvaluator {
+
+    private DataOutput dout;
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array2 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array3 = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval0;
+    private ICopyEvaluator eval1;
+    private ICopyEvaluator eval2;
+    private ICopyEvaluator eval3;
+
+    private final FunctionIdentifier funcID;
+
+    private AMutableString resultBuffer = new AMutableString("");
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ANULL);
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer strSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+    public AbstractQuadStringStringEval(DataOutput dout, ICopyEvaluatorFactory eval0, ICopyEvaluatorFactory eval1,
+            ICopyEvaluatorFactory eval2, ICopyEvaluatorFactory eval3, FunctionIdentifier funcID)
+            throws AlgebricksException {
+        this.dout = dout;
+        this.eval0 = eval0.createEvaluator(array0);
+        this.eval1 = eval1.createEvaluator(array1);
+        this.eval2 = eval2.createEvaluator(array2);
+        this.eval3 = eval3.createEvaluator(array3);
+        this.funcID = funcID;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        array0.reset();
+        eval0.evaluate(tuple);
+        array1.reset();
+        eval1.evaluate(tuple);
+        array2.reset();
+        eval2.evaluate(tuple);
+        array3.reset();
+        eval3.evaluate(tuple);
+
+        try {
+            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                nullSerde.serialize(ANull.NULL, dout);
+                return;
+            } else if (array0.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                if ((array1.getByteArray()[0] != SER_STRING_TYPE_TAG && array1.getByteArray()[0] != SER_NULL_TYPE_TAG)
+                        || (array2.getByteArray()[0] != SER_STRING_TYPE_TAG && array2.getByteArray()[0] != SER_NULL_TYPE_TAG)
+                        || (array3.getByteArray()[0] != SER_STRING_TYPE_TAG && array3.getByteArray()[0] != SER_NULL_TYPE_TAG)) {
+                    throw new AlgebricksException(funcID.getName()
+                            + ": expects input type (STRING/NULL, STRING/NULL, STRING/NULL, STRING/NULL), but got ("
+                            + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]) + ", "
+                            + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array1.getByteArray()[0]) + ", "
+                            + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array2.getByteArray()[0]) + ", "
+                            + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array3.getByteArray()[0]) + ".");
+                }
+
+            } else {
+                throw new AlgebricksException("Expects String or NULL Type.");
+            }
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+
+        byte[] b0 = array0.getByteArray();
+        byte[] b1 = array1.getByteArray();
+        byte[] b2 = array2.getByteArray();
+        byte[] b3 = array3.getByteArray();
+
+        int len0 = array0.getLength();
+        int len1 = array1.getLength();
+        int len2 = array2.getLength();
+        int len3 = array3.getLength();
+
+        int s0 = array0.getStartOffset();
+        int s1 = array1.getStartOffset();
+        int s2 = array2.getStartOffset();
+        int s3 = array3.getStartOffset();
+
+        String res = compute(b0, len0, s0, b1, len1, s1, b2, len2, s2, b3, len3, s3, array0, array1);
+        resultBuffer.setValue(res);
+        try {
+            strSerde.serialize(resultBuffer, dout);
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    protected abstract String compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2, int s2,
+            byte[] b3, int l3, int s3, ArrayBackedValueStorage array0, ArrayBackedValueStorage array1)
+            throws AlgebricksException;
+
+    protected String toRegex(AString pattern) {
+        StringBuilder sb = new StringBuilder();
+        String str = pattern.getStringValue();
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '\\' && (i < str.length() - 1) && (str.charAt(i + 1) == '_' || str.charAt(i + 1) == '%')) {
+                sb.append(str.charAt(i + 1));
+                ++i;
+            } else if (c == '%') {
+                sb.append(".*");
+            } else if (c == '_') {
+                sb.append(".");
+            } else {
+                if (Arrays.binarySearch(reservedRegexChars, c) >= 0) {
+                    sb.append('\\');
+                }
+                sb.append(c);
+            }
+        }
+        return sb.toString();
+    }
+
+    protected int toFlag(AString pattern) {
+        String str = pattern.getStringValue();
+        int flag = 0;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            switch (c) {
+                case 's':
+                    flag |= Pattern.DOTALL;
+                    break;
+                case 'm':
+                    flag |= Pattern.MULTILINE;
+                    break;
+                case 'i':
+                    flag |= Pattern.CASE_INSENSITIVE;
+                    break;
+                case 'x':
+                    flag |= Pattern.COMMENTS;
+                    break;
+            }
+        }
+        return flag;
+    }
+
+    private final static char[] reservedRegexChars = new char[] { '\\', '(', ')', '[', ']', '{', '}', '.', '^', '$',
+            '*', '|' };
+
+    static {
+        Arrays.sort(reservedRegexChars);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractStringContainsEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractStringContainsEval.java
index ba6a644..81782c8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractStringContainsEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractStringContainsEval.java
@@ -4,32 +4,42 @@
 
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public abstract class AbstractStringContainsEval implements IEvaluator {
+public abstract class AbstractStringContainsEval implements ICopyEvaluator {
 
     private DataOutput dout;
 
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
     private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
     private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
-    private IEvaluator evalString;
-    private IEvaluator evalPattern;
-    @SuppressWarnings("unchecked")
+    private ICopyEvaluator evalString;
+    private ICopyEvaluator evalPattern;
+    @SuppressWarnings("rawtypes")
     private ISerializerDeserializer boolSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
 
-    public AbstractStringContainsEval(DataOutput dout, IEvaluatorFactory evalStringFactory,
-            IEvaluatorFactory evalPatternFactory) throws AlgebricksException {
+    private final FunctionIdentifier funcID;
+
+    public AbstractStringContainsEval(DataOutput dout, ICopyEvaluatorFactory evalStringFactory,
+            ICopyEvaluatorFactory evalPatternFactory, FunctionIdentifier funcID) throws AlgebricksException {
         this.dout = dout;
         this.evalString = evalStringFactory.createEvaluator(array0);
         this.evalPattern = evalPatternFactory.createEvaluator(array1);
+        this.funcID = funcID;
     }
 
     @SuppressWarnings("unchecked")
@@ -39,8 +49,33 @@
         evalPattern.evaluate(tuple);
         array0.reset();
         evalString.evaluate(tuple);
-        byte[] b1 = array0.getBytes();
-        byte[] b2 = array1.getBytes();
+
+        try {
+            if (array1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG || array0.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                    boolSerde.serialize(ABoolean.TRUE, dout);
+                    return;
+                }
+            } else if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                if (array1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                    boolSerde.serialize(ABoolean.FALSE, dout);
+                    return;
+                }
+
+            }
+
+            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG || array1.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                throw new AlgebricksException(funcID.getName()
+                        + ": expects input type (STRING/NULL, STRING/NULL), but got ("
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]) + ", "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array1.getByteArray()[0]) + ").");
+            }
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+
+        byte[] b1 = array0.getByteArray();
+        byte[] b2 = array1.getByteArray();
         ABoolean res = findMatch(b1, b2) ? ABoolean.TRUE : ABoolean.FALSE;
         try {
             boolSerde.serialize(res, dout);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java
new file mode 100644
index 0000000..a3be797
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java
@@ -0,0 +1,159 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public abstract class AbstractTripleStringBoolEval implements ICopyEvaluator {
+
+    private DataOutput dout;
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array2 = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval0;
+    private ICopyEvaluator eval1;
+    private ICopyEvaluator eval2;
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer boolSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+    private final FunctionIdentifier funcID;
+
+    public AbstractTripleStringBoolEval(DataOutput dout, ICopyEvaluatorFactory eval0, ICopyEvaluatorFactory eval1,
+            ICopyEvaluatorFactory eval2, FunctionIdentifier funcID) throws AlgebricksException {
+        this.dout = dout;
+        this.eval0 = eval0.createEvaluator(array0);
+        this.eval1 = eval1.createEvaluator(array1);
+        this.eval2 = eval2.createEvaluator(array2);
+        this.funcID = funcID;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        array0.reset();
+        eval0.evaluate(tuple);
+        array1.reset();
+        eval1.evaluate(tuple);
+        array2.reset();
+        eval2.evaluate(tuple);
+
+        try {
+            if ((array0.getByteArray()[0] == SER_NULL_TYPE_TAG && array1.getByteArray()[0] == SER_STRING_TYPE_TAG)
+                    || (array1.getByteArray()[0] == SER_NULL_TYPE_TAG && array0.getByteArray()[0] == SER_STRING_TYPE_TAG)) {
+                boolSerde.serialize(ABoolean.FALSE, dout);
+                return;
+            } else if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG && array1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                boolSerde.serialize(ABoolean.TRUE, dout);
+                return;
+            }
+
+            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG || array1.getByteArray()[0] != SER_STRING_TYPE_TAG
+                    || array2.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                throw new AlgebricksException(funcID.getName()
+                        + ": expects iput type (STRING/NULL, STRING/NULL, STRING) but got ("
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]) + ", "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array1.getByteArray()[0]) + ", "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array2.getByteArray()[0]) + ")");
+            }
+
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+
+        byte[] b0 = array0.getByteArray();
+        byte[] b1 = array1.getByteArray();
+        byte[] b2 = array2.getByteArray();
+
+        int len0 = array0.getLength();
+        int len1 = array1.getLength();
+        int len2 = array2.getLength();
+
+        int s0 = array0.getStartOffset();
+        int s1 = array1.getStartOffset();
+        int s2 = array2.getStartOffset();
+
+        ABoolean res = compute(b0, len0, s0, b1, len1, s1, b2, len2, s2, array0, array1) ? ABoolean.TRUE
+                : ABoolean.FALSE;
+        try {
+            boolSerde.serialize(res, dout);
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    protected abstract boolean compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2, int s2,
+            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) throws AlgebricksException;
+
+    protected String toRegex(AString pattern) {
+        StringBuilder sb = new StringBuilder();
+        String str = pattern.getStringValue();
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '\\' && (i < str.length() - 1) && (str.charAt(i + 1) == '_' || str.charAt(i + 1) == '%')) {
+                sb.append(str.charAt(i + 1));
+                ++i;
+            } else if (c == '%') {
+                sb.append(".*");
+            } else if (c == '_') {
+                sb.append(".");
+            } else {
+                if (Arrays.binarySearch(reservedRegexChars, c) >= 0) {
+                    sb.append('\\');
+                }
+                sb.append(c);
+            }
+        }
+        return sb.toString();
+    }
+
+    protected int toFlag(AString pattern) {
+        String str = pattern.getStringValue();
+        int flag = 0;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            switch (c) {
+                case 's':
+                    flag |= Pattern.DOTALL;
+                    break;
+                case 'm':
+                    flag |= Pattern.MULTILINE;
+                    break;
+                case 'i':
+                    flag |= Pattern.CASE_INSENSITIVE;
+                    break;
+                case 'x':
+                    flag |= Pattern.COMMENTS;
+                    break;
+            }
+        }
+        return flag;
+    }
+
+    private final static char[] reservedRegexChars = new char[] { '\\', '(', ')', '[', ']', '{', '}', '.', '^', '$',
+            '*', '|' };
+
+    static {
+        Arrays.sort(reservedRegexChars);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java
new file mode 100644
index 0000000..41d0b3d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java
@@ -0,0 +1,164 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public abstract class AbstractTripleStringStringEval implements ICopyEvaluator {
+
+    private DataOutput dout;
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+    private ArrayBackedValueStorage array2 = new ArrayBackedValueStorage();
+    private ICopyEvaluator eval0;
+    private ICopyEvaluator eval1;
+    private ICopyEvaluator eval2;
+
+    private AMutableString resultBuffer = new AMutableString("");
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ANULL);
+    @SuppressWarnings("rawtypes")
+    private ISerializerDeserializer strSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+    private final FunctionIdentifier funcID;
+
+    public AbstractTripleStringStringEval(DataOutput dout, ICopyEvaluatorFactory eval0, ICopyEvaluatorFactory eval1,
+            ICopyEvaluatorFactory eval2, FunctionIdentifier funcID) throws AlgebricksException {
+        this.dout = dout;
+        this.eval0 = eval0.createEvaluator(array0);
+        this.eval1 = eval1.createEvaluator(array1);
+        this.eval2 = eval2.createEvaluator(array2);
+        this.funcID = funcID;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+        array0.reset();
+        eval0.evaluate(tuple);
+        array1.reset();
+        eval1.evaluate(tuple);
+        array2.reset();
+        eval2.evaluate(tuple);
+
+        try {
+            // type-check: (string?, string, string)
+
+            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                if (array1.getByteArray()[0] == SER_STRING_TYPE_TAG && array2.getByteArray()[0] == SER_STRING_TYPE_TAG) {
+                    nullSerde.serialize(ANull.NULL, dout);
+                    return;
+                }
+            }
+
+            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG || array1.getByteArray()[0] != SER_STRING_TYPE_TAG
+                    || array2.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                throw new AlgebricksException(funcID.getName()
+                        + ": expects input type (STRING/NULL, STRING, STRING), but got ("
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]) + ", "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array1.getByteArray()[0]) + ", "
+                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array2.getByteArray()[0]) + ").");
+            }
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+
+        byte[] b0 = array0.getByteArray();
+        byte[] b1 = array1.getByteArray();
+        byte[] b2 = array2.getByteArray();
+
+        int len0 = array0.getLength();
+        int len1 = array1.getLength();
+        int len2 = array2.getLength();
+
+        int s0 = array0.getStartOffset();
+        int s1 = array1.getStartOffset();
+        int s2 = array2.getStartOffset();
+
+        String res = compute(b0, len0, s0, b1, len1, s1, b2, len2, s2, array0, array1);
+        resultBuffer.setValue(res);
+        try {
+            strSerde.serialize(resultBuffer, dout);
+        } catch (HyracksDataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    protected abstract String compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2, int s2,
+            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) throws AlgebricksException;
+
+    protected String toRegex(AString pattern) {
+        StringBuilder sb = new StringBuilder();
+        String str = pattern.getStringValue();
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            if (c == '\\' && (i < str.length() - 1) && (str.charAt(i + 1) == '_' || str.charAt(i + 1) == '%')) {
+                sb.append(str.charAt(i + 1));
+                ++i;
+            } else if (c == '%') {
+                sb.append(".*");
+            } else if (c == '_') {
+                sb.append(".");
+            } else {
+                if (Arrays.binarySearch(reservedRegexChars, c) >= 0) {
+                    sb.append('\\');
+                }
+                sb.append(c);
+            }
+        }
+        return sb.toString();
+    }
+
+    protected int toFlag(AString pattern) {
+        String str = pattern.getStringValue();
+        int flag = 0;
+        for (int i = 0; i < str.length(); i++) {
+            char c = str.charAt(i);
+            switch (c) {
+                case 's':
+                    flag |= Pattern.DOTALL;
+                    break;
+                case 'm':
+                    flag |= Pattern.MULTILINE;
+                    break;
+                case 'i':
+                    flag |= Pattern.CASE_INSENSITIVE;
+                    break;
+                case 'x':
+                    flag |= Pattern.COMMENTS;
+                    break;
+            }
+        }
+        return flag;
+    }
+
+    private final static char[] reservedRegexChars = new char[] { '\\', '(', ')', '[', ']', '{', '}', '.', '^', '$',
+            '*', '|' };
+
+    static {
+        Arrays.sort(reservedRegexChars);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
index eb361be..a090dc2 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
@@ -1,52 +1,57 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ABooleanSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AndDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "and", FunctionIdentifier.VARARGS, true);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AndDescriptor();
+        }
+    };
+
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.AND;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 // one temp. buffer re-used by all children
                 final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                final IEvaluator[] evals = new IEvaluator[args.length];
+                final ICopyEvaluator[] evals = new ICopyEvaluator[args.length];
                 for (int i = 0; i < evals.length; i++) {
                     evals[i] = args[i].createEvaluator(argOut);
                 }
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
@@ -63,11 +68,11 @@
                             for (int i = 0; i < n; i++) {
                                 argOut.reset();
                                 evals[i].evaluate(tuple);
-                                if (argOut.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                                if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                     metNull = true;
                                     continue;
                                 }
-                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getBytes(), 1);
+                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getByteArray(), 1);
                                 res = res && argResult;
                             }
                             if (metNull) {
@@ -88,5 +93,4 @@
             }
         };
     }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
index 0710283..d704812 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
@@ -4,46 +4,51 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class AnyCollectionMemberDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "any-collection-member", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AnyCollectionMemberDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new AnyCollectionMemberEvalFactory(args[0]);
     }
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER;
     }
 
-    private static class AnyCollectionMemberEvalFactory implements IEvaluatorFactory {
+    private static class AnyCollectionMemberEvalFactory implements ICopyEvaluatorFactory {
 
         private static final long serialVersionUID = 1L;
 
-        private IEvaluatorFactory listEvalFactory;
+        private ICopyEvaluatorFactory listEvalFactory;
         private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
         private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
         private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
@@ -51,17 +56,17 @@
         private ATypeTag itemTag;
         private boolean selfDescList = false;
 
-        public AnyCollectionMemberEvalFactory(IEvaluatorFactory arg) {
+        public AnyCollectionMemberEvalFactory(ICopyEvaluatorFactory arg) {
             this.listEvalFactory = arg;
         }
 
         @Override
-        public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-            return new IEvaluator() {
+        public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            return new ICopyEvaluator() {
 
                 private DataOutput out = output.getDataOutput();
                 private ArrayBackedValueStorage outInputList = new ArrayBackedValueStorage();
-                private IEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
+                private ICopyEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
                 @SuppressWarnings("unchecked")
                 private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                         .getSerializerDeserializer(BuiltinType.ANULL);
@@ -74,7 +79,7 @@
                     try {
                         outInputList.reset();
                         evalList.evaluate(tuple);
-                        byte[] serList = outInputList.getBytes();
+                        byte[] serList = outInputList.getByteArray();
 
                         if (serList[0] == SER_NULL_TYPE_TAG) {
                             nullSerde.serialize(ANull.NULL, out);
@@ -82,7 +87,8 @@
                         }
 
                         if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
-                            throw new AlgebricksException("List's get-any-item is not defined for values of type"
+                            throw new AlgebricksException(AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER.getName()
+                                    + ": expects input type ORDEREDLIST/UNORDEREDLIST, but got "
                                     + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
                         }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java
new file mode 100644
index 0000000..240f8c7
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java
@@ -0,0 +1,267 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+/**
+ * The most simple implementation of a static hashtable you could imagine.
+ * Intended to work with binary data and be able to map arbitrary key types to
+ * arbitrary value types, given that they have implementations of
+ * IBinaryHashFunction and IBinaryComparator.
+ * 
+ * Uses 2 bytes each to indicate the length of the key and the value.
+ * Uses 8 byte pointers for the linked list (4 bytes frame index, 4 bytes frame offset).
+ * 
+ * This class is NOT thread safe.
+ * 
+ */
+public class BinaryHashMap {
+	// Special value to indicate an empty "bucket" in the header array.
+	private static final long NULL_PTR = -1;
+	private static final int PTR_SIZE = 8;
+	private static final int SLOT_SIZE = 2;
+	private static final int ENTRY_HEADER_SIZE = PTR_SIZE + 2 * SLOT_SIZE;
+	private final IBinaryHashFunction hashFunc;
+	private final IBinaryComparator cmp;
+	private final BinaryEntry returnValue = new BinaryEntry();
+	
+	private final long[] listHeads;
+	private final int frameSize;
+	private final List<ByteBuffer> frames = new ArrayList<ByteBuffer>();
+	private int currFrameIndex;
+	private int nextOff;
+	private int size;
+	
+	// Can be used for key or value.
+	public static class BinaryEntry {
+		public byte[] buf;
+		public int off;
+		public int len;
+		
+		public void set(byte[] buf, int off, int len) {
+			this.buf = buf;
+			this.off = off;
+			this.len = len;
+		}
+		
+		// Inefficient. Just for debugging.
+		@SuppressWarnings("rawtypes")
+		public String print(ISerializerDeserializer serde) throws HyracksDataException {
+			ByteArrayInputStream inStream = new ByteArrayInputStream(buf, off, len);
+            DataInput dataIn = new DataInputStream(inStream);
+            return serde.deserialize(dataIn).toString();
+		}
+	}
+	
+	public BinaryHashMap(int tableSize, int frameSize, IBinaryHashFunction hashFunc, IBinaryComparator cmp) {
+		listHeads = new long[tableSize];
+		this.frameSize = frameSize;		
+		this.hashFunc = hashFunc;
+		this.cmp = cmp;
+		frames.add(ByteBuffer.allocate(frameSize));
+		clear();
+	}
+	
+	/**
+	 * Inserts key, value into the hash map. If key already exists, returns
+	 * existing entry. Otherwise, returns null.
+	 * 
+	 * @param key
+	 * @param value
+	 * @return
+	 */
+	public BinaryEntry put(BinaryEntry key, BinaryEntry value) {
+		return getPutInternal(key, value, true);
+	}
+	
+	/**
+	 * Retrieves value for given key. Returns null if key doesn't exist.
+	 * 
+	 * @param key
+	 * @param value
+	 * @return
+	 */
+	public BinaryEntry get(BinaryEntry key) {
+		return getPutInternal(key, null, false);
+	}
+	
+	private BinaryEntry getPutInternal(BinaryEntry key, BinaryEntry value, boolean put) {
+		int bucket = Math.abs(hashFunc.hash(key.buf, key.off, key.len) % listHeads.length);
+		long headPtr = listHeads[bucket];
+		if (headPtr == NULL_PTR) {
+			// Key definitely doesn't exist yet.
+			if (put) {
+				listHeads[bucket] = appendEntry(key, value);
+			}
+			return null;
+		}
+		// Follow the chain until we found an entry matching the given key.
+		int frameOff;
+		ByteBuffer frame;
+		do {				
+			int frameIndex = getFrameIndex(headPtr);
+			frameOff = getFrameOffset(headPtr);
+			frame = frames.get(frameIndex);
+			int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
+			int entryKeyLen = frame.getShort(frameOff);
+			if (cmp.compare(frame.array(), entryKeyOff, entryKeyLen, key.buf,
+					key.off, key.len) == 0) {
+				// Key found, set values and return.
+				int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
+				int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
+				returnValue.set(frame.array(), entryValOff, entryValLen);
+				return returnValue;
+			}
+			headPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
+		} while (headPtr != NULL_PTR);
+		// We've followed the chain to its end, and didn't find the key.
+		if (put) {
+			// Append the new entry, and set a pointer to it in the last entry we've checked.
+			long newPtr = appendEntry(key, value);
+			frame.putLong(frameOff + 2 * SLOT_SIZE, newPtr);
+		}
+		return null;
+	}
+	
+	public long appendEntry(BinaryEntry key, BinaryEntry value) {
+		ByteBuffer frame = frames.get(currFrameIndex);
+		int requiredSpace = key.len + value.len + ENTRY_HEADER_SIZE;
+		if (nextOff + requiredSpace >= frameSize) {
+			// Entry doesn't fit on frame, allocate a new one.
+			if (requiredSpace > frameSize) {
+				throw new IllegalStateException("Key and value greater than framesize.");
+			}
+			frames.add(ByteBuffer.allocate(frameSize));
+			currFrameIndex++;
+			nextOff = 0;
+			frame = frames.get(currFrameIndex);
+		}
+		writeEntryHeader(frame, nextOff, key.len, value.len, NULL_PTR);
+		System.arraycopy(key.buf, key.off, frame.array(), nextOff + ENTRY_HEADER_SIZE, key.len);
+		System.arraycopy(value.buf, value.off, frame.array(), nextOff + ENTRY_HEADER_SIZE + key.len, value.len);
+		long entryPtr = getEntryPtr(currFrameIndex, nextOff);
+		nextOff += requiredSpace;
+		size++;
+		return entryPtr;
+	}
+	
+	private void writeEntryHeader(ByteBuffer frame, int targetOff, int keyLen, int valLen, long ptr) {
+		frame.putShort(targetOff, (short) keyLen);
+		frame.putShort(targetOff + SLOT_SIZE, (short) valLen);
+		frame.putLong(targetOff + 2 * SLOT_SIZE, ptr);
+	}
+
+	private long getEntryPtr(int frameIndex, int frameOff) {
+        return (((long) frameIndex) << 32) + frameOff;
+    }
+
+    private int getFrameIndex(long ptr) {
+        return (int) ((ptr >> 32) & 0xffffffff);
+    }
+
+    private int getFrameOffset(long ptr) {
+        return (int) (ptr & 0xffffffff);
+    }
+
+	public int size() {
+		return size;
+	}
+
+	public boolean isEmpty() {
+		return size > 0;
+	}
+
+	public void clear() {
+		// Initialize all entries to point to nothing.
+		Arrays.fill(listHeads, NULL_PTR);
+		currFrameIndex = 0;
+		nextOff = 0;
+		size = 0;
+	}
+	
+	public Iterator<Pair<BinaryEntry, BinaryEntry>> iterator() {
+		return new BinaryHashMapIterator();
+	}
+	
+	public class BinaryHashMapIterator implements Iterator<Pair<BinaryEntry, BinaryEntry> > {
+		private final Pair<BinaryEntry, BinaryEntry> val = new Pair<BinaryEntry, BinaryEntry>(new BinaryEntry(), new BinaryEntry());
+		private int listHeadIndex;
+		private ByteBuffer frame;
+		private int frameIndex;
+		private int frameOff;
+		
+		public BinaryHashMapIterator() {
+			listHeadIndex = 0;
+			frame = null;
+			frameIndex = -1;
+			frameOff = -1;
+		}
+		
+		@Override
+		public boolean hasNext() {
+			if (frame != null) {
+				long nextPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
+				if (nextPtr == NULL_PTR) {
+					// End of current list.
+					listHeadIndex++;
+					return nextListHead();
+				} else {
+					// Follow pointer.
+					setValue(nextPtr);
+					return true;
+				}
+			}
+			return nextListHead();
+		}
+
+		private boolean nextListHead() {
+			// Position to first non-null list-head pointer.
+			while(listHeadIndex < listHeads.length && listHeads[listHeadIndex] == NULL_PTR) {
+				listHeadIndex++;
+			}
+			if (listHeadIndex < listHeads.length) {
+				// Positioned to first non-null list head.
+				setValue(listHeads[listHeadIndex]);
+				return true;
+			} else {
+				// No more lists.
+				frame = null;
+				return false;
+			}
+		}
+		
+		private void setValue(long ptr) {
+			frameIndex = getFrameIndex(ptr);
+			frameOff = getFrameOffset(ptr);
+			frame = frames.get(frameIndex);
+			int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
+			int entryKeyLen = frame.getShort(frameOff);
+			int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
+			int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
+			val.first.set(frame.array(), entryKeyOff, entryKeyLen);
+			val.second.set(frame.array(), entryValOff, entryValLen);
+		}
+		
+		@Override
+		public Pair<BinaryEntry, BinaryEntry> next() {
+			return val;
+		}
+
+		@Override
+		public void remove() {
+			throw new UnsupportedOperationException("Remove not implemented");
+		}
+	}
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java
new file mode 100644
index 0000000..8bb4d49
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java
@@ -0,0 +1,84 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.pointables.PointableAllocator;
+import edu.uci.ics.asterix.om.pointables.base.IVisitablePointable;
+import edu.uci.ics.asterix.om.pointables.cast.ACastVisitor;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CastRecordDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CastRecordDescriptor();
+        }
+    };
+
+    private static final long serialVersionUID = 1L;
+    private ARecordType reqType;
+    private ARecordType inputType;
+
+    public void reset(ARecordType reqType, ARecordType inputType) {
+        this.reqType = reqType;
+        this.inputType = inputType;
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.CAST_RECORD;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        final ICopyEvaluatorFactory recordEvalFactory = args[0];
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                final DataOutput out = output.getDataOutput();
+                final ArrayBackedValueStorage recordBuffer = new ArrayBackedValueStorage();
+                final ICopyEvaluator recEvaluator = recordEvalFactory.createEvaluator(recordBuffer);
+
+                return new ICopyEvaluator() {
+                    // pointable allocator
+                    private PointableAllocator allocator = new PointableAllocator();
+                    final IVisitablePointable recAccessor = allocator.allocateRecordValue(inputType);
+                    final IVisitablePointable resultAccessor = allocator.allocateRecordValue(reqType);
+                    final ACastVisitor castVisitor = new ACastVisitor();
+                    final Triple<IVisitablePointable, IAType, Boolean> arg = new Triple<IVisitablePointable, IAType, Boolean>(
+                            resultAccessor, reqType, Boolean.FALSE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            recordBuffer.reset();
+                            recEvaluator.evaluate(tuple);
+                            recAccessor.set(recordBuffer);
+                            recAccessor.accept(castVisitor, arg);
+                            out.write(resultAccessor.getByteArray(), resultAccessor.getStartOffset(),
+                                    resultAccessor.getLength());
+                        } catch (Exception ioe) {
+                            throw new AlgebricksException(ioe);
+                        }
+                    }
+                };
+            }
+        };
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
index 8dfaf69..cdfd9d3 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
@@ -1,16 +1,21 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.ClosedRecordConstructorEvalFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 public class ClosedRecordConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
-    protected static final FunctionIdentifier FID_CLOSED = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "closed-record-constructor", FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ClosedRecordConstructorDescriptor();
+        }
+    };
 
     private static final long serialVersionUID = 1L;
 
@@ -22,11 +27,11 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID_CLOSED;
+        return AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new ClosedRecordConstructorEvalFactory(args, recType);
     }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java
new file mode 100644
index 0000000..1a3e1b8
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java
@@ -0,0 +1,143 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class CodePointToStringDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CodePointToStringDescriptor();
+        }
+    };
+    private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+
+    private final static byte[] currentUTF8 = new byte[6];
+    private final byte stringTypeTag = ATypeTag.STRING.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            private int codePointToUTF8(int c) {
+                if (c < 0x80) {
+                    currentUTF8[0] = (byte) (c & 0x7F /* mask 7 lsb: 0b1111111 */);
+                    return 1;
+                } else if (c < 0x0800) {
+                    currentUTF8[0] = (byte) (c >> 6 & 0x1F | 0xC0);
+                    currentUTF8[1] = (byte) (c & 0x3F | 0x80);
+                    return 2;
+                } else if (c < 0x010000) {
+                    currentUTF8[0] = (byte) (c >> 12 & 0x0F | 0xE0);
+                    currentUTF8[1] = (byte) (c >> 6 & 0x3F | 0x80);
+                    currentUTF8[2] = (byte) (c & 0x3F | 0x80);
+                    return 3;
+                } else if (c < 0x200000) {
+                    currentUTF8[0] = (byte) (c >> 18 & 0x07 | 0xF0);
+                    currentUTF8[1] = (byte) (c >> 12 & 0x3F | 0x80);
+                    currentUTF8[2] = (byte) (c >> 6 & 0x3F | 0x80);
+                    currentUTF8[3] = (byte) (c & 0x3F | 0x80);
+                    return 4;
+                } else if (c < 0x4000000) {
+                    currentUTF8[0] = (byte) (c >> 24 & 0x03 | 0xF8);
+                    currentUTF8[1] = (byte) (c >> 18 & 0x3F | 0x80);
+                    currentUTF8[2] = (byte) (c >> 12 & 0x3F | 0x80);
+                    currentUTF8[3] = (byte) (c >> 6 & 0x3F | 0x80);
+                    currentUTF8[4] = (byte) (c & 0x3F | 0x80);
+                    return 5;
+                } else if (c < 0x80000000) {
+                    currentUTF8[0] = (byte) (c >> 30 & 0x01 | 0xFC);
+                    currentUTF8[1] = (byte) (c >> 24 & 0x3F | 0x80);
+                    currentUTF8[2] = (byte) (c >> 18 & 0x3F | 0x80);
+                    currentUTF8[3] = (byte) (c >> 12 & 0x3F | 0x80);
+                    currentUTF8[4] = (byte) (c >> 6 & 0x3F | 0x80);
+                    currentUTF8[5] = (byte) (c & 0x3F | 0x80);
+                    return 6;
+                }
+                return 0;
+            }
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ICopyEvaluatorFactory listEvalFactory = args[0];
+                    private ArrayBackedValueStorage outInputList = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            outInputList.reset();
+                            evalList.evaluate(tuple);
+                            byte[] serOrderedList = outInputList.getByteArray();
+                            if (serOrderedList[0] != SER_ORDEREDLIST_TYPE_TAG
+                                    && serOrderedList[1] != SER_INT32_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.CODEPOINT_TO_STRING.getName()
+                                        + ": expects input type ORDEREDLIST but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[0]));
+                            }
+                            int size = AOrderedListSerializerDeserializer.getNumberOfItems(serOrderedList);
+                            try {
+                                // calculate length first
+                                int utf_8_len = 0;
+                                for (int i = 0; i < size; i++) {
+                                    int itemOffset = AOrderedListSerializerDeserializer
+                                            .getItemOffset(serOrderedList, i);
+                                    int codePoint = AInt32SerializerDeserializer.getInt(serOrderedList, itemOffset);
+                                    utf_8_len += codePointToUTF8(codePoint);
+                                }
+                                out.writeByte(stringTypeTag);
+                                StringUtils.writeUTF8Len(utf_8_len, out);
+                                for (int i = 0; i < size; i++) {
+                                    int itemOffset = AOrderedListSerializerDeserializer
+                                            .getItemOffset(serOrderedList, i);
+                                    int codePoint = AInt32SerializerDeserializer.getInt(serOrderedList, itemOffset);
+                                    utf_8_len = codePointToUTF8(codePoint);
+                                    for (int j = 0; j < utf_8_len; j++) {
+                                        out.writeByte(currentUTF8[j]);
+                                    }
+                                }
+                            } catch (AsterixException ex) {
+                                throw new AlgebricksException(ex);
+                            }
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1.getMessage());
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.CODEPOINT_TO_STRING;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java
new file mode 100644
index 0000000..f103e0f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java
@@ -0,0 +1,101 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+
+/**
+ *
+ * @author Xiaoyu Ma
+ */
+public class CodepointIterator {
+    public void reset(byte [] buf, int startPos) {
+        this.buf = buf;
+        this.curPos = startPos + 2;
+        this.startPos = startPos;
+        len = UTF8StringPointable.getUTFLength(buf, startPos);        
+    }
+    
+    public int size() { return len; }
+
+    private byte[] buf;
+    private int curPos = 0;
+    private int len = 0;
+    private int startPos = 0;
+
+    public int getCodePoint() {
+        return UTF8ToCodePoint(buf, curPos);
+    }
+
+    public static int UTF8ToCodePoint(byte[] b, int s) {
+        if (b[s] >> 7 == 0) {
+            // 1 byte
+            return b[s];
+        } else if ((b[s] & 0xe0) == 0xc0) { /*
+             * 0xe0 = 0b1110000
+             */
+            // 2 bytes
+            return ((int) (b[s] & 0x1f)) << 6
+                    | /*
+                     * 0x3f = 0b00111111
+                     */ ((int) (b[s + 1] & 0x3f));
+        } else if ((b[s] & 0xf0) == 0xe0) {
+            // 3bytes
+            return ((int) (b[s] & 0xf)) << 12
+                    | ((int) (b[s + 1] & 0x3f)) << 6
+                    | ((int) (b[s + 2] & 0x3f));
+        } else if ((b[s] & 0xf8) == 0xf0) {
+            // 4bytes
+            return ((int) (b[s] & 0x7)) << 18
+                    | ((int) (b[s + 1] & 0x3f)) << 12
+                    | ((int) (b[s + 2] & 0x3f)) << 6
+                    | ((int) (b[s + 3] & 0x3f));
+        } else if ((b[s] & 0xfc) == 0xf8) {
+            // 5bytes
+            return ((int) (b[s] & 0x3)) << 24
+                    | ((int) (b[s + 1] & 0x3f)) << 18
+                    | ((int) (b[s + 2] & 0x3f)) << 12
+                    | ((int) (b[s + 3] & 0x3f)) << 6
+                    | ((int) (b[s + 4] & 0x3f));
+        } else if ((b[s] & 0xfe) == 0xfc) {
+            // 6bytes
+            return ((int) (b[s] & 0x1)) << 30
+                    | ((int) (b[s + 1] & 0x3f)) << 24
+                    | ((int) (b[s + 2] & 0x3f)) << 18
+                    | ((int) (b[s + 3] & 0x3f)) << 12
+                    | ((int) (b[s + 4] & 0x3f)) << 6
+                    | ((int) (b[s + 5] & 0x3f));
+        }
+        return 0;
+    }
+
+    public void next() {
+        int step = UTF8StringPointable.charSize(buf, curPos);
+        if(step + curPos < len + 2 + startPos)
+            curPos += step;
+    }
+
+    public boolean hasNext() {
+        int step = UTF8StringPointable.charSize(buf, curPos);
+        if(step + curPos < len + 2 + startPos)
+            return true;   
+        return false;
+    }
+    
+    public static int compare(CodepointIterator ls, CodepointIterator rs) {
+        CodepointIterator shortString = ls.size() < rs.size() ? ls : rs;
+        
+        while (true) {
+            int c1 = ls.getCodePoint();
+            int c2 = rs.getCodePoint();
+            if (c1 != c2) {
+                return c1 - c2;
+            }
+            if(shortString.hasNext()) {
+                ls.next();
+                rs.next();
+            } else {
+                break;
+            }
+        }
+        return ls.size() - rs.size();
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
index 611a67b..8fe59a8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
@@ -2,39 +2,43 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
 
 public class ContainsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "contains", 2,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ContainsDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
 
                 DataOutput dout = output.getDataOutput();
 
-                return new AbstractStringContainsEval(dout, args[0], args[1]) {
+                return new AbstractStringContainsEval(dout, args[0], args[1], AsterixBuiltinFunctions.CONTAINS) {
 
                     @Override
                     protected boolean findMatch(byte[] strBytes, byte[] patternBytes) {
-                        int utflen1 = UTF8StringPointable.getUTFLen(strBytes, 1);
-                        int utflen2 = UTF8StringPointable.getUTFLen(patternBytes, 1);
+                        int utflen1 = UTF8StringPointable.getUTFLength(strBytes, 1);
+                        int utflen2 = UTF8StringPointable.getUTFLength(patternBytes, 1);
 
                         int s1Start = 3;
                         int s2Start = 3;
@@ -71,7 +75,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CONTAINS;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
index 46ec534..0bdb7ff 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
@@ -1,40 +1,42 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.GramTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.HashedUTF8NGramTokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.NGramUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.HashedUTF8NGramTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.NGramUTF8StringBinaryTokenizer;
 
 public class CountHashedGramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "counthashed-gram-tokens", 3, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CountHashedGramTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNTHASHED_GRAM_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new HashedUTF8NGramTokenFactory(ATypeTag.INT32.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new HashedUTF8NGramTokenFactory();
                 NGramUTF8StringBinaryTokenizer tokenizer = new NGramUTF8StringBinaryTokenizer(3, true, false, true,
                         tokenFactory);
                 return new GramTokensEvaluator(args, output, tokenizer, BuiltinType.AINT32);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
index d20d23d..be982c0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
@@ -1,41 +1,43 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.WordTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.DelimitedUTF8StringBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.HashedUTF8WordTokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.IBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.HashedUTF8WordTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
 
 public class CountHashedWordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "counthashed-word-tokens", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CountHashedWordTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNTHASHED_WORD_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new HashedUTF8WordTokenFactory(ATypeTag.INT32.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new HashedUTF8WordTokenFactory();
                 IBinaryTokenizer tokenizer = new DelimitedUTF8StringBinaryTokenizer(false, true, tokenFactory);
                 return new WordTokensEvaluator(args, output, tokenizer, BuiltinType.AINT32);
             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
index ecb6bff..c188228 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,38 +10,50 @@
 import edu.uci.ics.asterix.om.base.ACircle;
 import edu.uci.ics.asterix.om.base.AMutableCircle;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class CreateCircleDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-circle",
-            2, true);
+
+    private static final byte SER_DOUBLE_TYPE_TAG = ATypeTag.DOUBLE.serialize();
+    private static final byte SER_POINT_TYPE_TAG = ATypeTag.POINT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreateCircleDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                     private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
                     private AMutablePoint aPoint = new AMutablePoint(0, 0);
                     private AMutableCircle aCircle = new AMutableCircle(null, 0);
                     @SuppressWarnings("unchecked")
@@ -56,12 +67,24 @@
                         outInput1.reset();
                         eval1.evaluate(tuple);
 
+                        // Type check: (point, double)
+                        if (outInput0.getByteArray()[0] != SER_POINT_TYPE_TAG
+                                || outInput1.getByteArray()[0] != SER_DOUBLE_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.CREATE_CIRCLE.getName()
+                                    + ": expects input type (POINT, DOUBLE) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getByteArray()[0])
+                                    + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1.getByteArray()[0])
+                                    + ")");
+                        }
+
                         try {
-                            aPoint.setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                            aPoint.setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)),
-                                    ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                    ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)));
-                            aCircle.setValue(aPoint, ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(), 1));
+                            aCircle.setValue(aPoint,
+                                    ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(), 1));
                             circleSerde.serialize(aCircle, out);
                         } catch (IOException e1) {
                             throw new AlgebricksException(e1);
@@ -74,7 +97,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_CIRCLE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
index 9ecd011..3021d70 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,38 +10,50 @@
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.AMutableLine;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class CreateLineDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-line", 2,
-            true);
+
+    // allowed input type
+    private static final byte SER_POINT_TYPE_TAG = ATypeTag.POINT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreateLineDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                     private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
                     private AMutableLine aLine = new AMutableLine(null, null);
                     private AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
                     @SuppressWarnings("unchecked")
@@ -56,14 +67,25 @@
                         outInput1.reset();
                         eval1.evaluate(tuple);
 
+                        // type-check: (point, point)
+                        if (outInput0.getByteArray()[0] != SER_POINT_TYPE_TAG
+                                || outInput1.getByteArray()[0] != SER_POINT_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.CREATE_LINE.getName()
+                                    + ": expects input type: (POINT, POINT) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getByteArray()[0])
+                                    + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1.getByteArray()[0])
+                                    + ").");
+                        }
+
                         try {
-                            aPoint[0].setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                            aPoint[0].setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)),
-                                    ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                    ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)));
-                            aPoint[1].setValue(ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                            aPoint[1].setValue(ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)),
-                                    ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                    ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)));
                             aLine.setValue(aPoint[0], aPoint[1]);
                             lineSerde.serialize(aLine, out);
@@ -78,7 +100,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_LINE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
index 74e8cb1..ad6f6d4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
@@ -1,26 +1,31 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.CreateMBREvalFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 public class CreateMBRDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-mbr", 3,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreateMBRDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
         return new CreateMBREvalFactory(args[0], args[1], args[2]);
     }
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_MBR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
index d75606a..e660815 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
@@ -3,43 +3,54 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class CreatePointDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-point",
-            2, true);
+
+    // allowed input type
+    private static final byte SER_DOUBLE_TYPE_TAG = ATypeTag.DOUBLE.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreatePointDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                     private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
                     private AMutablePoint aPoint = new AMutablePoint(0, 0);
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<APoint> pointSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -52,9 +63,20 @@
                         outInput1.reset();
                         eval1.evaluate(tuple);
 
+                        // type-check: (double, double)
+                        if (outInput0.getByteArray()[0] != SER_DOUBLE_TYPE_TAG
+                                || outInput1.getByteArray()[0] != SER_DOUBLE_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.CREATE_POINT.getName()
+                                    + ": expects input type: (DOUBLE, DOUBLE) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getByteArray()[0])
+                                    + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1.getByteArray()[0])
+                                    + ").");
+                        }
+
                         try {
-                            aPoint.setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), 1),
-                                    ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(), 1));
+                            aPoint.setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(), 1),
+                                    ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(), 1));
                             pointSerde.serialize(aPoint, out);
 
                         } catch (IOException e1) {
@@ -68,7 +90,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_POINT;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
index 6cfbe5b..4bd45bb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
@@ -3,35 +3,40 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class CreatePolygonDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-polygon",
-            FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreatePolygonDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             private DataOutput out;
             private ArrayBackedValueStorage outInput;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                final IEvaluator[] argEvals = new IEvaluator[args.length];
+                final ICopyEvaluator[] argEvals = new ICopyEvaluator[args.length];
                 out = output.getDataOutput();
 
                 outInput = new ArrayBackedValueStorage();
@@ -40,7 +45,7 @@
                     argEvals[i] = args[i].createEvaluator(outInput);
                 }
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -55,7 +60,8 @@
                             outInput.reset();
                             argEvals[i].evaluate(tuple);
                             try {
-                                out.write(outInput.getBytes(), outInput.getStartIndex() + 1, outInput.getLength() - 1);
+                                out.write(outInput.getByteArray(), outInput.getStartOffset() + 1,
+                                        outInput.getLength() - 1);
                             } catch (IOException e) {
                                 throw new AlgebricksException(e);
                             }
@@ -68,7 +74,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_POLYGON;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
index 504e666..a9c3b09 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,37 +10,49 @@
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
 import edu.uci.ics.asterix.om.base.ARectangle;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class CreateRectangleDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-rectangle", 2, true);
+
+    // allowed input type
+    private static final byte SER_POINT_TYPE_TAG = ATypeTag.POINT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CreateRectangleDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
                     private DataOutput out = output.getDataOutput();
 
                     private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                     private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
                     private AMutableRectangle aRectangle = new AMutableRectangle(null, null);
                     private AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
                     @SuppressWarnings("unchecked")
@@ -55,20 +66,33 @@
                         outInput1.reset();
                         eval1.evaluate(tuple);
 
+                        if (outInput0.getByteArray()[0] != SER_POINT_TYPE_TAG
+                                || outInput1.getByteArray()[0] != SER_POINT_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.CREATE_RECTANGLE.getName()
+                                    + ": expects input type: (POINT, POINT) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getByteArray()[0])
+                                    + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1.getByteArray()[0])
+                                    + ".");
+                        }
+
                         try {
-                            aPoint[0].setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                            aPoint[0].setValue(ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)),
-                                    ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                    ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)));
-                            aPoint[1].setValue(ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                            aPoint[1].setValue(ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)),
-                                    ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                    ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)));
-                            if (aPoint[0].getX() > aPoint[1].getX() || aPoint[0].getY() > aPoint[1].getY()) {
+                            if (aPoint[0].getX() > aPoint[1].getX() && aPoint[0].getY() > aPoint[1].getY()) {
+                                aRectangle.setValue(aPoint[1], aPoint[0]);
+                            } else if (aPoint[0].getX() < aPoint[1].getX() && aPoint[0].getY() < aPoint[1].getY()) {
+                                aRectangle.setValue(aPoint[0], aPoint[1]);
+                            } else {
                                 throw new IllegalArgumentException(
-                                        "The low point in the rectangle cannot be larger than the high point");
+                                        "Rectangle arugment must be either (bottom left point, top right point) or (top right point, bottom left point)");
                             }
-                            aRectangle.setValue(aPoint[0], aPoint[1]);
                             rectangle2DSerde.serialize(aRectangle, out);
                         } catch (IOException e1) {
                             throw new AlgebricksException(e1);
@@ -81,7 +105,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_RECTANGLE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
index 23e5e1d..028c31b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
@@ -2,39 +2,43 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.EditDistanceEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class EditDistanceCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance-check", 3, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EditDistanceCheckDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 return new EditDistanceCheckEvaluator(args, output);
             }
         };
@@ -42,20 +46,20 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK;
     }
 
     private static class EditDistanceCheckEvaluator extends EditDistanceEvaluator {
 
-        private final IEvaluator edThreshEval;
+        private final ICopyEvaluator edThreshEval;
         private int edThresh = -1;
-        private IAOrderedListBuilder listBuilder;
+        private final OrderedListBuilder listBuilder;
         private ArrayBackedValueStorage inputVal;
         @SuppressWarnings("unchecked")
         private final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
                 .getSerializerDeserializer(BuiltinType.ABOOLEAN);
 
-        public EditDistanceCheckEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output)
+        public EditDistanceCheckEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
                 throws AlgebricksException {
             super(args, output);
             edThreshEval = args[2].createEvaluator(argOut);
@@ -68,7 +72,7 @@
             super.runArgEvals(tuple);
             int edThreshStart = argOut.getLength();
             edThreshEval.evaluate(tuple);
-            edThresh = IntegerSerializerDeserializer.getInt(argOut.getBytes(), edThreshStart + typeIndicatorSize);
+            edThresh = IntegerSerializerDeserializer.getInt(argOut.getByteArray(), edThreshStart + typeIndicatorSize);
         }
 
         @Override
@@ -88,8 +92,8 @@
                 }
 
                 default: {
-                    throw new AlgebricksException("Invalid type " + argType
-                            + " passed as argument to edit distance function.");
+                    throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK.getName()
+                            + ": expects input type as STRING or ORDEREDLIST but got " + argType + ".");
                 }
 
             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
index 740952e..7cb44cb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
@@ -1,28 +1,32 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.EditDistanceEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class EditDistanceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "edit-distance",
-            2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EditDistanceDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 return new EditDistanceEvaluator(args, output);
             }
         };
@@ -30,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java
new file mode 100644
index 0000000..5866bf7
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java
@@ -0,0 +1,126 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+
+/**
+ * Checks whether a list with an edit distance threshold can be filtered with a lower bounding on the number of common list elements.
+ * This function returns 'true' if the lower bound on the number of common elements is positive, 'false' otherwise.
+ * For example, this function is used during an indexed nested-loop join based on edit distance. We partition the tuples of the probing
+ * dataset into those that are filterable and those that are not. Those that are filterable are forwarded to the index. The others are
+ * are fed into a (non indexed) nested-loop join.
+ */
+public class EditDistanceListIsFilterable extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EditDistanceListIsFilterable();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                return new EditDistanceListIsFilterableEvaluator(args, output);
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_LIST_IS_FILTERABLE;
+    }
+
+    private static class EditDistanceListIsFilterableEvaluator implements ICopyEvaluator {
+
+        protected final ArrayBackedValueStorage argBuf = new ArrayBackedValueStorage();
+        protected final IDataOutputProvider output;
+
+        protected final ICopyEvaluator listEval;
+        protected final ICopyEvaluator edThreshEval;
+
+        @SuppressWarnings("unchecked")
+        private final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+        public EditDistanceListIsFilterableEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+                throws AlgebricksException {
+            this.output = output;
+            listEval = args[0].createEvaluator(argBuf);
+            edThreshEval = args[1].createEvaluator(argBuf);
+        }
+
+        @Override
+        public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+            ATypeTag typeTag = null;
+
+            // Check type and compute string length.
+            argBuf.reset();
+            listEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            int listLen = 0;
+            switch (typeTag) {
+                case UNORDEREDLIST: {
+                    listLen = AUnorderedListSerializerDeserializer.getNumberOfItems(argBuf.getByteArray(), 0);
+                    break;
+                }
+                case ORDEREDLIST: {
+                    listLen = AOrderedListSerializerDeserializer.getNumberOfItems(argBuf.getByteArray(), 0);
+                    break;
+                }
+                default: {
+                    throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_LIST_IS_FILTERABLE.getName()
+                            + ": expects input type ORDEREDLIST or UNORDEREDLIST as the first argument, but got "
+                            + typeTag + ".");
+                }
+            }
+
+            // Check type and extract edit-distance threshold.
+            argBuf.reset();
+            edThreshEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            if (!typeTag.equals(ATypeTag.INT32)) {
+                throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_LIST_IS_FILTERABLE.getName()
+                        + ": expected type INT32 as the second argument, but got " + typeTag + ".");
+            }
+            int edThresh = IntegerSerializerDeserializer.getInt(argBuf.getByteArray(), 1);
+
+            // Compute result.
+            int lowerBound = listLen - edThresh;
+            try {
+                if (lowerBound <= 0) {
+                    booleanSerde.serialize(ABoolean.FALSE, output.getDataOutput());
+                } else {
+                    booleanSerde.serialize(ABoolean.TRUE, output.getDataOutput());
+                }
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+        }
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java
new file mode 100644
index 0000000..512a76b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java
@@ -0,0 +1,147 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.BooleanSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+
+/**
+ * Checks whether a string with an edit distance threshold can be filtered with a lower bounding on number of common grams.
+ * This function returns 'true' if the lower bound on the number of common grams is positive, 'false' otherwise.
+ * For example, this function is used during an indexed nested-loop join based on edit distance. We partition the tuples of the probing
+ * dataset into those that are filterable and those that are not. Those that are filterable are forwarded to the index. The others are
+ * are fed into a (non indexed) nested-loop join.
+ */
+public class EditDistanceStringIsFilterable extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EditDistanceStringIsFilterable();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                return new EditDistanceStringIsFilterableEvaluator(args, output);
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE;
+    }
+
+    private static class EditDistanceStringIsFilterableEvaluator implements ICopyEvaluator {
+
+        protected final ArrayBackedValueStorage argBuf = new ArrayBackedValueStorage();
+        protected final IDataOutputProvider output;
+
+        protected final ICopyEvaluator stringEval;
+        protected final ICopyEvaluator edThreshEval;
+        protected final ICopyEvaluator gramLenEval;
+        protected final ICopyEvaluator usePrePostEval;
+
+        @SuppressWarnings("unchecked")
+        private final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+                .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+        public EditDistanceStringIsFilterableEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+                throws AlgebricksException {
+            this.output = output;
+            stringEval = args[0].createEvaluator(argBuf);
+            edThreshEval = args[1].createEvaluator(argBuf);
+            gramLenEval = args[2].createEvaluator(argBuf);
+            usePrePostEval = args[3].createEvaluator(argBuf);
+        }
+
+        @Override
+        public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+            ATypeTag typeTag = null;
+
+            // Check type and compute string length.
+            argBuf.reset();
+            stringEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            if (!typeTag.equals(ATypeTag.STRING)) {
+                throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE.getName()
+                        + ": expects input type STRING as first argument, but got " + typeTag + ".");
+            }
+            int utf8Length = UTF8StringPointable.getUTFLength(argBuf.getByteArray(), 1);
+            int pos = 3;
+            int strLen = 0;
+            int end = pos + utf8Length;
+            while (pos < end) {
+                strLen++;
+                pos += UTF8StringPointable.charSize(argBuf.getByteArray(), pos);
+            }
+
+            // Check type and extract edit-distance threshold.
+            argBuf.reset();
+            edThreshEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            if (!typeTag.equals(ATypeTag.INT32)) {
+                throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE.getName()
+                        + ": expects input type INT32 as second argument, but got " + typeTag + ".");
+            }
+            int edThresh = IntegerSerializerDeserializer.getInt(argBuf.getByteArray(), 1);
+
+            // Check type and extract gram length.
+            argBuf.reset();
+            gramLenEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            if (!typeTag.equals(ATypeTag.INT32)) {
+                throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE.getName()
+                        + ": expects input type INT32 as third argument, but got " + typeTag + ".");
+            }
+            int gramLen = IntegerSerializerDeserializer.getInt(argBuf.getByteArray(), 1);
+
+            // Check type and extract usePrePost flag.
+            argBuf.reset();
+            usePrePostEval.evaluate(tuple);
+            typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argBuf.getByteArray()[0]);
+            if (!typeTag.equals(ATypeTag.BOOLEAN)) {
+                throw new AlgebricksException(AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE.getName()
+                        + ": expects input type BOOLEAN as fourth argument, but got " + typeTag + ".");
+            }
+            boolean usePrePost = BooleanSerializerDeserializer.getBoolean(argBuf.getByteArray(), 1);
+
+            // Compute result.			
+            int numGrams = (usePrePost) ? strLen + gramLen - 1 : strLen - gramLen + 1;
+            int lowerBound = numGrams - edThresh * gramLen;
+            try {
+                if (lowerBound <= 0 || strLen == 0) {
+                    booleanSerde.serialize(ABoolean.FALSE, output.getDataOutput());
+                } else {
+                    booleanSerde.serialize(ABoolean.TRUE, output.getDataOutput());
+                }
+            } catch (IOException e) {
+                throw new AlgebricksException(e);
+            }
+        }
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
index 6f86da8..1477106 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
@@ -1,20 +1,26 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class EmbedTypeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "embed-type", 1,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EmbedTypeDescriptor();
+        }
+    };
+
     @SuppressWarnings("unused")
     private IAType fieldType;
 
@@ -23,15 +29,15 @@
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 // TODO Auto-generated method stub
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -45,7 +51,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EMBED_TYPE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
index a868a1a..bd5757d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
@@ -2,39 +2,43 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
 
 public class EndsWithDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "ends-with", 2,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new EndsWithDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
 
                 DataOutput dout = output.getDataOutput();
 
-                return new AbstractStringContainsEval(dout, args[0], args[1]) {
+                return new AbstractStringContainsEval(dout, args[0], args[1], AsterixBuiltinFunctions.ENDS_WITH) {
 
                     @Override
                     protected boolean findMatch(byte[] strBytes, byte[] patternBytes) {
-                        int utflen1 = UTF8StringPointable.getUTFLen(strBytes, 1);
-                        int utflen2 = UTF8StringPointable.getUTFLen(patternBytes, 1);
+                        int utflen1 = UTF8StringPointable.getUTFLength(strBytes, 1);
+                        int utflen2 = UTF8StringPointable.getUTFLength(patternBytes, 1);
 
                         int s1Start = 3;
                         int s2Start = 3;
@@ -67,7 +71,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ENDS_WITH;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
index 7bb7dc3..e4aa596 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
@@ -1,17 +1,23 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.FieldAccessByIndexEvalFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 public class FieldAccessByIndexDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-index", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new FieldAccessByIndexDescriptor();
+        }
+    };
+
     private ARecordType recType;
 
     public void reset(ARecordType recType) {
@@ -20,11 +26,11 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) {
         return new FieldAccessByIndexEvalFactory(args[0], args[1], recType);
     }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
index 7eb8fae..09a9940 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
@@ -4,65 +4,71 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class FieldAccessByNameDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-name", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new FieldAccessByNameDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) {
         return new FieldAccessByNameEvalFactory(args[0], args[1]);
     }
 
-    private static class FieldAccessByNameEvalFactory implements IEvaluatorFactory {
+    private static class FieldAccessByNameEvalFactory implements ICopyEvaluatorFactory {
 
         private static final long serialVersionUID = 1L;
 
-        private IEvaluatorFactory recordEvalFactory;
-        private IEvaluatorFactory fldNameEvalFactory;
+        private ICopyEvaluatorFactory recordEvalFactory;
+        private ICopyEvaluatorFactory fldNameEvalFactory;
 
         private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
         private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
 
-        public FieldAccessByNameEvalFactory(IEvaluatorFactory recordEvalFactory, IEvaluatorFactory fldNameEvalFactory) {
+        public FieldAccessByNameEvalFactory(ICopyEvaluatorFactory recordEvalFactory,
+                ICopyEvaluatorFactory fldNameEvalFactory) {
             this.recordEvalFactory = recordEvalFactory;
             this.fldNameEvalFactory = fldNameEvalFactory;
         }
 
         @Override
-        public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-            return new IEvaluator() {
+        public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            return new ICopyEvaluator() {
 
                 private DataOutput out = output.getDataOutput();
 
                 private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                 private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                private IEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
-                private IEvaluator eval1 = fldNameEvalFactory.createEvaluator(outInput1);
+                private ICopyEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0);
+                private ICopyEvaluator eval1 = fldNameEvalFactory.createEvaluator(outInput1);
                 @SuppressWarnings("unchecked")
                 private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                         .getSerializerDeserializer(BuiltinType.ANULL);
@@ -78,7 +84,7 @@
                         eval0.evaluate(tuple);
                         outInput1.reset();
                         eval1.evaluate(tuple);
-                        byte[] serRecord = outInput0.getBytes();
+                        byte[] serRecord = outInput0.getByteArray();
 
                         if (serRecord[0] == SER_NULL_TYPE_TAG) {
                             nullSerde.serialize(ANull.NULL, out);
@@ -86,11 +92,12 @@
                         }
 
                         if (serRecord[0] != SER_RECORD_TYPE_TAG) {
-                            throw new AlgebricksException("Field accessor is not defined for values of type"
+                            throw new AlgebricksException(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME.getName()
+                                    + ": expects input type NULL or RECORD, but got "
                                     + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serRecord[0]));
                         }
 
-                        byte[] serFldName = outInput1.getBytes();
+                        byte[] serFldName = outInput1.getByteArray();
                         fieldValueOffset = ARecordSerializerDeserializer.getFieldOffsetByName(serRecord, serFldName);
                         if (fieldValueOffset < 0) {
                             out.writeByte(ATypeTag.NULL.serialize());
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
index 056bb61..b9f9d5e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
@@ -1,26 +1,31 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 
 public class FuzzyEqDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "fuzzy-eq", 2,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new FuzzyEqDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
         throw new NotImplementedException();
     }
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FUZZY_EQ;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
index 828ca2f..b41347d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
@@ -4,67 +4,73 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class GetItemDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-item", 2,
-            true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new GetItemDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new GetItemEvalFactory(args);
     }
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GET_ITEM;
     }
 
-    private static class GetItemEvalFactory implements IEvaluatorFactory {
+    private static class GetItemEvalFactory implements ICopyEvaluatorFactory {
 
         private static final long serialVersionUID = 1L;
 
-        private IEvaluatorFactory listEvalFactory;
-        private IEvaluatorFactory indexEvalFactory;
+        private ICopyEvaluatorFactory listEvalFactory;
+        private ICopyEvaluatorFactory indexEvalFactory;
         private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
         private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+        private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
         private byte serItemTypeTag;
         private ATypeTag itemTag;
         private boolean selfDescList = false;
 
-        public GetItemEvalFactory(IEvaluatorFactory[] args) {
+        public GetItemEvalFactory(ICopyEvaluatorFactory[] args) {
             this.listEvalFactory = args[0];
             this.indexEvalFactory = args[1];
         }
 
         @Override
-        public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-            return new IEvaluator() {
+        public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            return new ICopyEvaluator() {
 
                 private DataOutput out = output.getDataOutput();
                 private ArrayBackedValueStorage outInputList = new ArrayBackedValueStorage();
                 private ArrayBackedValueStorage outInputIdx = new ArrayBackedValueStorage();
-                private IEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
-                private IEvaluator evalIdx = indexEvalFactory.createEvaluator(outInputIdx);
+                private ICopyEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
+                private ICopyEvaluator evalIdx = indexEvalFactory.createEvaluator(outInputIdx);
                 @SuppressWarnings("unchecked")
                 private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                         .getSerializerDeserializer(BuiltinType.ANULL);
@@ -80,25 +86,30 @@
                         evalList.evaluate(tuple);
                         outInputIdx.reset();
                         evalIdx.evaluate(tuple);
-                        byte[] serOrderedList = outInputList.getBytes();
+                        byte[] serOrderedList = outInputList.getByteArray();
 
                         if (serOrderedList[0] == SER_NULL_TYPE_TAG) {
                             nullSerde.serialize(ANull.NULL, out);
                             return;
                         }
 
-                        if (serOrderedList[0] != SER_ORDEREDLIST_TYPE_TAG) {
-                            throw new AlgebricksException("List's get-item can not be called on values of type"
-                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[0]));
+                        if (serOrderedList[0] != SER_ORDEREDLIST_TYPE_TAG
+                                || outInputIdx.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.GET_ITEM.getName()
+                                    + ": expects input type (NULL/ORDEREDLIST, INT32), but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[0]) + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInputIdx.getByteArray()[0])
+                                    + ").");
                         }
 
-                        itemIndex = IntegerSerializerDeserializer.getInt(outInputIdx.getBytes(), 1);
+                        itemIndex = IntegerSerializerDeserializer.getInt(outInputIdx.getByteArray(), 1);
                         if (itemIndex >= AOrderedListSerializerDeserializer.getNumberOfItems(serOrderedList)) {
                             out.writeByte(SER_NULL_TYPE_TAG);
                             return;
                         }
                         if (itemIndex < 0)
-                            throw new AlgebricksException("Item index can be negative !!");
+                            throw new AlgebricksException(AsterixBuiltinFunctions.GET_ITEM.getName()
+                                    + ": item index can be negative!");
 
                         itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[1]);
                         if (itemTag == ATypeTag.ANY)
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
index 7321766..1993453 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
@@ -1,39 +1,42 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.GramTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.NGramUTF8StringBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.UTF8NGramTokenFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.NGramUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.UTF8NGramTokenFactory;
 
 public class GramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "gram-tokens",
-            3, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new GramTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GRAM_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new UTF8NGramTokenFactory(ATypeTag.STRING.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new UTF8NGramTokenFactory();
                 NGramUTF8StringBinaryTokenizer tokenizer = new NGramUTF8StringBinaryTokenizer(3, true, true, true,
                         tokenFactory);
                 return new GramTokensEvaluator(args, output, tokenizer, BuiltinType.ASTRING);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
index e2193f5..43fda6f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
@@ -1,39 +1,42 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.GramTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.HashedUTF8NGramTokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.NGramUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.HashedUTF8NGramTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.NGramUTF8StringBinaryTokenizer;
 
 public class HashedGramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-gram-tokens", 3, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new HashedGramTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.HASHED_GRAM_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new HashedUTF8NGramTokenFactory(ATypeTag.INT32.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new HashedUTF8NGramTokenFactory();
                 NGramUTF8StringBinaryTokenizer tokenizer = new NGramUTF8StringBinaryTokenizer(3, true, true, true,
                         tokenFactory);
                 return new GramTokensEvaluator(args, output, tokenizer, BuiltinType.AINT32);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
index e223b2a..554044a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
@@ -1,41 +1,43 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.WordTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.DelimitedUTF8StringBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.HashedUTF8WordTokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.IBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.HashedUTF8WordTokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
 
 public class HashedWordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-word-tokens", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new HashedWordTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.HASHED_WORD_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new HashedUTF8WordTokenFactory(ATypeTag.INT32.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new HashedUTF8WordTokenFactory();
                 IBinaryTokenizer tokenizer = new DelimitedUTF8StringBinaryTokenizer(true, true, tokenFactory);
                 return new WordTokensEvaluator(args, output, tokenizer, BuiltinType.AINT32);
             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
index 863c213..e35c56f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
@@ -2,45 +2,50 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ABooleanSerializerDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class InjectFailureDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "inject-failure", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new InjectFailureDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INJECT_FAILURE;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
                 final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                final IEvaluator[] evals = new IEvaluator[args.length];
+                final ICopyEvaluator[] evals = new ICopyEvaluator[args.length];
                 evals[0] = args[0].createEvaluator(argOut);
                 evals[1] = args[1].createEvaluator(argOut);
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -48,17 +53,20 @@
                             // evaluator the failure condition
                             argOut.reset();
                             evals[1].evaluate(tuple);
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]);
+                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(argOut.getByteArray()[0]);
                             if (typeTag == ATypeTag.BOOLEAN) {
-                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getBytes(), 1);
+                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getByteArray(), 1);
                                 if (argResult)
-                                    throw new AlgebricksException("Injecting a intended failure");
+                                    throw new AlgebricksException(AsterixBuiltinFunctions.INJECT_FAILURE
+                                            + ": injecting a intended failure");
                             }
 
                             // evaluate the real evaluator
                             argOut.reset();
                             evals[0].evaluate(tuple);
-                            output.getDataOutput().write(argOut.getBytes(), argOut.getStartIndex(), argOut.getLength());
+                            output.getDataOutput().write(argOut.getByteArray(), argOut.getStartOffset(),
+                                    argOut.getLength());
                         } catch (IOException e) {
                             throw new AlgebricksException(e);
                         }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
index d6fe887..c25de2d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
@@ -4,45 +4,50 @@
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class IsNullDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
 
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "is-null", 1, true);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IsNullDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
                         argOut.reset();
                         eval.evaluate(tuple);
-                        boolean isNull = argOut.getBytes()[argOut.getStartIndex()] == SER_NULL_TYPE_TAG;
+                        boolean isNull = argOut.getByteArray()[argOut.getStartOffset()] == SER_NULL_TYPE_TAG;
                         ABoolean res = isNull ? ABoolean.TRUE : ABoolean.FALSE;
                         try {
                             AObjectSerializerDeserializer.INSTANCE.serialize(res, out);
@@ -57,7 +62,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.IS_NULL;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
index 077b704..48e575a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
@@ -3,48 +3,55 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class LenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "len", 1, true);
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LenDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private final DataOutput out = output.getDataOutput();
                     private final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private final IEvaluator evalList = args[0].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalList = args[0].createEvaluator(inputVal);
 
                     // result
                     private final AMutableInt32 res = new AMutableInt32(0);
@@ -60,7 +67,7 @@
                         inputVal.reset();
                         evalList.evaluate(tuple);
 
-                        byte[] serList = inputVal.getBytes();
+                        byte[] serList = inputVal.getByteArray();
 
                         if (serList[0] == SER_NULL_TYPE_TAG) {
                             try {
@@ -72,7 +79,9 @@
                         }
 
                         if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
-                            throw new AlgebricksException("len() can only be called on ordered or unordered lists.");
+                            throw new AlgebricksException(AsterixBuiltinFunctions.LEN.getName()
+                                    + ": expects input type ORDEREDLIST/UNORDEREDLIST but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
                         }
 
                         int numberOfitems = 0;
@@ -95,7 +104,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LEN;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
index 5f59851..58b5b7b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
@@ -7,27 +7,29 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 /**
@@ -38,35 +40,43 @@
 public class LikeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2, true);
+
+    // allowed input types
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LikeDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LIKE;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
 
                 final DataOutput dout = output.getDataOutput();
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private boolean first = true;
                     private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
-                    private IEvaluator evalString = args[0].createEvaluator(array0);
-                    private IEvaluator evalPattern = args[1].createEvaluator(array0);
+                    private ICopyEvaluator evalString = args[0].createEvaluator(array0);
+                    private ICopyEvaluator evalPattern = args[1].createEvaluator(array0);
                     private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
                     private UTF8CharSequence carSeq = new UTF8CharSequence();
                     private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
-                            .getBinaryComparatorFactory(BuiltinType.ASTRING, OrderKind.ASC).createBinaryComparator();
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ASTRING);
@@ -85,24 +95,30 @@
                         try {
                             array0.reset();
                             evalPattern.evaluate(tuple);
-                            if (array0.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, dout);
                                 return;
                             }
+                            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.LIKE
+                                        + ": expects input type STRING/NULL for the first argument but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0])
+                                        + ".");
+                            }
                             boolean newPattern = false;
                             if (first) {
                                 first = false;
                                 newPattern = true;
                             } else {
-                                int c = strComp.compare(array0.getBytes(), array0.getStartIndex(), array0.getLength(),
-                                        lastPattern.getByteArray(), 0, lastPattern.size());
+                                int c = strComp.compare(array0.getByteArray(), array0.getStartOffset(),
+                                        array0.getLength(), lastPattern.getByteArray(), 0, lastPattern.size());
                                 if (c != 0) {
                                     newPattern = true;
                                 }
                             }
                             if (newPattern) {
                                 lastPattern.reset();
-                                lastPattern.write(array0.getBytes(), array0.getStartIndex(), array0.getLength());
+                                lastPattern.write(array0.getByteArray(), array0.getStartOffset(), array0.getLength());
                                 // ! object creation !
                                 DataInputStream di = new DataInputStream(new ByteArrayInputStream(
                                         lastPattern.getByteArray()));
@@ -112,10 +128,16 @@
                             }
                             array0.reset();
                             evalString.evaluate(tuple);
-                            if (array0.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, dout);
                                 return;
                             }
+                            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.LIKE
+                                        + ": expects input type (STRING/NULL, STRING/NULL) but got (STRING, "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0])
+                                        + ").");
+                            }
                             carSeq.reset(array0, 1);
                             if (newPattern) {
                                 matcher = pattern.matcher(carSeq);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
index 0f4b0a0..1553a1a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
@@ -6,49 +6,55 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class NotDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "not", 1, true);
 
     private final static byte SER_BOOLEAN_TYPE_TAG = ATypeTag.BOOLEAN.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NotDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NOT;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 final DataOutput out = output.getDataOutput();
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
 
-                    private String errorMessage = "Not() can only be applied on boolean";
+                    private String errorMessage = AsterixBuiltinFunctions.NOT.getName()
+                            + ": expects input type BOOLEAN/NULL";
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
@@ -61,11 +67,11 @@
                         argOut.reset();
                         eval.evaluate(tuple);
                         try {
-                            if (argOut.getBytes()[0] == SER_BOOLEAN_TYPE_TAG) {
-                                boolean argRes = ABooleanSerializerDeserializer.getBoolean(argOut.getBytes(), 1);
+                            if (argOut.getByteArray()[0] == SER_BOOLEAN_TYPE_TAG) {
+                                boolean argRes = ABooleanSerializerDeserializer.getBoolean(argOut.getByteArray(), 1);
                                 ABoolean aResult = argRes ? (ABoolean.FALSE) : (ABoolean.TRUE);
                                 booleanSerde.serialize(aResult, out);
-                            } else if (argOut.getBytes()[0] == SER_NULL_TYPE_TAG)
+                            } else if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG)
                                 nullSerde.serialize(ANull.NULL, out);
                             else
                                 throw new AlgebricksException(errorMessage);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotNullDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotNullDescriptor.java
new file mode 100644
index 0000000..6c4126f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotNullDescriptor.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * This runtime function checks if the input is null.
+ * If the input is not null, just return it directly;
+ * Otherwise, throw a runtime exception.
+ */
+public class NotNullDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NotNullDescriptor();
+        }
+    };
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
+                    private String errorMessage = AsterixBuiltinFunctions.NOT_NULL
+                            + ": the input value cannot be NULL.";
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        try {
+                            outInput.reset();
+                            eval.evaluate(tuple);
+                            byte[] data = outInput.getByteArray();
+                            if (data[outInput.getStartOffset()] == SER_NULL_TYPE_TAG) {
+                                throw new AlgebricksException(errorMessage);
+                            }
+                            out.write(data, outInput.getStartOffset(), outInput.getLength());
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(errorMessage);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NOT_NULL;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java
new file mode 100644
index 0000000..4ba5d40
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java
@@ -0,0 +1,145 @@
+/*
+ * Numeric function Absolute value
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericAbsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericAbsDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_ABS;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue((val <= 0) ? (byte) (0 - val) : val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue((val <= 0) ? (short) (0 - val) : val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue((val <= 0) ? (0 - val) : val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue((val <= 0L) ? (0L - val) : val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                aFloat.setValue((val <= 0.0f) ? 0.0f - val : val);
+                                serde.serialize(aFloat, out);
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                aDouble.setValue((val <= 0.0D) ? 0.0D - val : val);
+                                serde.serialize(aDouble, out);
+                            } else {
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_ABS.getName()
+                                        + ": not implemented for "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
index 8e4c319..0181698 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
@@ -1,173 +1,38 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class NumericAddDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+public class NumericAddDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "numeric-add", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericAddDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ADD;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
-            private static final long serialVersionUID = 1L;
-
-            @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-
-                return new IEvaluator() {
-                    private DataOutput out = output.getDataOutput();
-                    // one temp. buffer re-used by both children
-                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator evalLeft = args[0].createEvaluator(argOut);
-                    private IEvaluator evalRight = args[1].createEvaluator(argOut);
-                    private double[] operands = new double[args.length];
-                    private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false,
-                            metFloat = false, metDouble = false;
-                    private ATypeTag typeTag;
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer serde;
-
-                    @SuppressWarnings("unchecked")
-                    @Override
-                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
-
-                        try {
-                            for (int i = 0; i < args.length; i++) {
-                                argOut.reset();
-                                if (i == 0)
-                                    evalLeft.evaluate(tuple);
-                                else
-                                    evalRight.evaluate(tuple);
-                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]);
-                                switch (typeTag) {
-                                    case INT8: {
-                                        metInt8 = true;
-                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT16: {
-                                        metInt16 = true;
-                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT32: {
-                                        metInt32 = true;
-                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT64: {
-                                        metInt64 = true;
-                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case FLOAT: {
-                                        metFloat = true;
-                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case DOUBLE: {
-                                        metDouble = true;
-                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case NULL: {
-                                        serde = AqlSerializerDeserializerProvider.INSTANCE
-                                                .getSerializerDeserializer(BuiltinType.ANULL);
-                                        serde.serialize(ANull.NULL, out);
-                                        return;
-                                    }
-                                    default: {
-                                        throw new NotImplementedException(i == 0 ? "Left"
-                                                : "Right"
-                                                        + " Operand of Addition can not be "
-                                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
-                                                                .getBytes()[0]));
-                                    }
-                                }
-                            }
-
-                            if (metDouble) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(operands[0] + operands[1]);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloat) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue((float) (operands[0] + operands[1]));
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue((long) (operands[0] + operands[1]));
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue((int) (operands[0] + operands[1]));
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) (operands[0] + operands[1]));
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) (operands[0] + operands[1]));
-                                serde.serialize(aInt8, out);
-                            }
-
-                        } catch (HyracksDataException hde) {
-                            throw new AlgebricksException(hde);
-                        }
-                    }
-                };
-            }
-        };
+    protected long evaluateInteger(long x, long y) throws HyracksDataException {
+        long z = x + y;
+        if (x > 0) {
+            if (y > 0 && z < 0)
+                throw new ArithmeticException("Overflow adding " + x + " + " + y);
+        } else if (y < 0 && z > 0)
+            throw new ArithmeticException("Overflow adding " + x + " + " + y);
+        return z;
     }
 
+    @Override
+    protected double evaluateDouble(double lhs, double rhs) throws HyracksDataException {
+        return lhs + rhs;
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java
new file mode 100644
index 0000000..c5ae80b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java
@@ -0,0 +1,146 @@
+/*
+ * Numeric function ceiling
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericCeilingDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericCeilingDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_CEILING;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue(val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue(val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue(val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue(val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                aFloat.setValue((float) Math.ceil(val));
+                                serde.serialize(aFloat, out);
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                aDouble.setValue(Math.ceil(val));
+                                serde.serialize(aDouble, out);
+                            } else {
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_CEILING.getName()
+                                        + ": not implemented for "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
index c7274f8..4cc3e03 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
@@ -1,173 +1,34 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class NumericDivideDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+public class NumericDivideDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-divide",
-            2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericDivideDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_DIVIDE;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
-            private static final long serialVersionUID = 1L;
-
-            @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-
-                return new IEvaluator() {
-                    private DataOutput out = output.getDataOutput();
-                    // one temp. buffer re-used by both children
-                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator evalLeft = args[0].createEvaluator(argOut);
-                    private IEvaluator evalRight = args[1].createEvaluator(argOut);
-                    private double[] operands = new double[args.length];
-                    private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false,
-                            metFloat = false, metDouble = false;
-                    private ATypeTag typeTag;
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer serde;
-
-                    @SuppressWarnings("unchecked")
-                    @Override
-                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
-
-                        try {
-                            for (int i = 0; i < args.length; i++) {
-                                argOut.reset();
-                                if (i == 0)
-                                    evalLeft.evaluate(tuple);
-                                else
-                                    evalRight.evaluate(tuple);
-                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]);
-                                switch (typeTag) {
-                                    case INT8: {
-                                        metInt8 = true;
-                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT16: {
-                                        metInt16 = true;
-                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT32: {
-                                        metInt32 = true;
-                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT64: {
-                                        metInt64 = true;
-                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case FLOAT: {
-                                        metFloat = true;
-                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case DOUBLE: {
-                                        metDouble = true;
-                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case NULL: {
-                                        serde = AqlSerializerDeserializerProvider.INSTANCE
-                                                .getSerializerDeserializer(BuiltinType.ANULL);
-                                        serde.serialize(ANull.NULL, out);
-                                        return;
-                                    }
-                                    default: {
-                                        throw new NotImplementedException(i == 0 ? "Left"
-                                                : "Right"
-                                                        + " Operand of Division can not be "
-                                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
-                                                                .getBytes()[0]));
-                                    }
-                                }
-                            }
-
-                            if (metDouble) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(operands[0] / operands[1]);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloat) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue((float) (operands[0] / operands[1]));
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue((long) (operands[0] / operands[1]));
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue((int) (operands[0] / operands[1]));
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) (operands[0] / operands[1]));
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) (operands[0] / operands[1]));
-                                serde.serialize(aInt8, out);
-                            }
-
-                        } catch (HyracksDataException hde) {
-                            throw new AlgebricksException(hde);
-                        }
-                    }
-                };
-            }
-        };
+    protected long evaluateInteger(long lhs, long rhs) throws HyracksDataException {
+        if (rhs == 0)
+            throw new HyracksDataException("Divide by Zero.");
+        return lhs / rhs;
     }
 
+    @Override
+    protected double evaluateDouble(double lhs, double rhs) {
+        return lhs / rhs;
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
new file mode 100644
index 0000000..89deafd
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
@@ -0,0 +1,144 @@
+/*
+ * Numeric function Floor
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericFloorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericFloorDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_FLOOR;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue(val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue(val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue(val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue(val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                aFloat.setValue((float) Math.floor(val));
+                                serde.serialize(aFloat, out);
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                aDouble.setValue(Math.floor(val));
+                                serde.serialize(aDouble, out);
+                            } else {
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_FLOOR.getName() + ": not implemented for "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java
new file mode 100644
index 0000000..3dff635
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java
@@ -0,0 +1,195 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * @author kisskys
+ */
+public class NumericModuloDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericModuloDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_MOD;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    // one temp. buffer re-used by both children
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalLeft = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator evalRight = args[1].createEvaluator(argOut);
+                    private double[] operands = new double[args.length];
+                    private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false,
+                            metFloat = false, metDouble = false;
+                    private ATypeTag typeTag;
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        try {
+                            for (int i = 0; i < args.length; i++) {
+                                argOut.reset();
+                                if (i == 0)
+                                    evalLeft.evaluate(tuple);
+                                else
+                                    evalRight.evaluate(tuple);
+                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]);
+                                switch (typeTag) {
+                                    case INT8: {
+                                        metInt8 = true;
+                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT16: {
+                                        metInt16 = true;
+                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT32: {
+                                        metInt32 = true;
+                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case INT64: {
+                                        metInt64 = true;
+                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case FLOAT: {
+                                        metFloat = true;
+                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case DOUBLE: {
+                                        metDouble = true;
+                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                        break;
+                                    }
+                                    case NULL: {
+                                        serde = AqlSerializerDeserializerProvider.INSTANCE
+                                                .getSerializerDeserializer(BuiltinType.ANULL);
+                                        serde.serialize(ANull.NULL, out);
+                                        return;
+                                    }
+                                    default: {
+                                        throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_MOD.getName()
+                                                + (i == 0 ? ": left" : ": right")
+                                                + " operand can not be "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                        .getByteArray()[0]));
+                                    }
+                                }
+                            }
+
+                            if (metDouble) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                aDouble.setValue(operands[0] % operands[1]);
+                                serde.serialize(aDouble, out);
+                            } else if (metFloat) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                aFloat.setValue((float) (operands[0] % operands[1]));
+                                serde.serialize(aFloat, out);
+                            } else if (metInt64) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                aInt64.setValue((long) (operands[0] % operands[1]));
+                                serde.serialize(aInt64, out);
+                            } else if (metInt32) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                aInt32.setValue((int) (operands[0] % operands[1]));
+                                serde.serialize(aInt32, out);
+                            } else if (metInt16) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                aInt16.setValue((short) (operands[0] % operands[1]));
+                                serde.serialize(aInt16, out);
+                            } else if (metInt8) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                aInt8.setValue((byte) (operands[0] % operands[1]));
+                                serde.serialize(aInt8, out);
+                            }
+
+                        } catch (HyracksDataException hde) {
+                            throw new AlgebricksException(hde);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
index 1970210..2dcb349 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
@@ -1,172 +1,46 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
-public class NumericMultiplyDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+public class NumericMultiplyDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-multiply", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericMultiplyDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_MULTIPLY;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
-            private static final long serialVersionUID = 1L;
+    protected long evaluateInteger(long lhs, long rhs) throws HyracksDataException {
+        int signLhs = lhs > 0 ? 1 : (lhs < 0 ? -1 : 0);
+        int signRhs = rhs > 0 ? 1 : (rhs < 0 ? -1 : 0);
+        long maximum = signLhs == signRhs ? Long.MAX_VALUE : Long.MIN_VALUE;
 
-            @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+        if (lhs != 0 && (rhs > 0 && rhs > maximum / lhs || rhs < 0 && rhs < maximum / lhs))
+            throw new HyracksDataException("Overflow Happened.");
 
-                return new IEvaluator() {
-                    private DataOutput out = output.getDataOutput();
-                    // one temp. buffer re-used by both children
-                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator evalLeft = args[0].createEvaluator(argOut);
-                    private IEvaluator evalRight = args[1].createEvaluator(argOut);
-                    private double[] operands = new double[args.length];
-                    private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false,
-                            metFloat = false, metDouble = false;
-                    private ATypeTag typeTag;
-                    private AMutableDouble aDouble = new AMutableDouble(0);
-                    private AMutableFloat aFloat = new AMutableFloat(0);
-                    private AMutableInt64 aInt64 = new AMutableInt64(0);
-                    private AMutableInt32 aInt32 = new AMutableInt32(0);
-                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer serde;
-
-                    @SuppressWarnings("unchecked")
-                    @Override
-                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
-
-                        try {
-                            for (int i = 0; i < args.length; i++) {
-                                argOut.reset();
-                                if (i == 0)
-                                    evalLeft.evaluate(tuple);
-                                else
-                                    evalRight.evaluate(tuple);
-                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]);
-                                switch (typeTag) {
-                                    case INT8: {
-                                        metInt8 = true;
-                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT16: {
-                                        metInt16 = true;
-                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT32: {
-                                        metInt32 = true;
-                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case INT64: {
-                                        metInt64 = true;
-                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case FLOAT: {
-                                        metFloat = true;
-                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case DOUBLE: {
-                                        metDouble = true;
-                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(), 1);
-                                        break;
-                                    }
-                                    case NULL: {
-                                        serde = AqlSerializerDeserializerProvider.INSTANCE
-                                                .getSerializerDeserializer(BuiltinType.ANULL);
-                                        serde.serialize(ANull.NULL, out);
-                                        return;
-                                    }
-                                    default: {
-                                        throw new NotImplementedException(i == 0 ? "Left"
-                                                : "Right"
-                                                        + " Operand of Multiplication can not be "
-                                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
-                                                                .getBytes()[0]));
-                                    }
-                                }
-                            }
-                            if (metDouble) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(operands[0] * operands[1]);
-                                serde.serialize(aDouble, out);
-                            } else if (metFloat) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue((float) (operands[0] * operands[1]));
-                                serde.serialize(aFloat, out);
-                            } else if (metInt64) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue((long) (operands[0] * operands[1]));
-                                serde.serialize(aInt64, out);
-                            } else if (metInt32) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue((int) (operands[0] * operands[1]));
-                                serde.serialize(aInt32, out);
-                            } else if (metInt16) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) (operands[0] * operands[1]));
-                                serde.serialize(aInt16, out);
-                            } else if (metInt8) {
-                                serde = AqlSerializerDeserializerProvider.INSTANCE
-                                        .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) (operands[0] * operands[1]));
-                                serde.serialize(aInt8, out);
-                            }
-
-                        } catch (HyracksDataException hde) {
-                            throw new AlgebricksException(hde);
-                        }
-                    }
-                };
-            }
-        };
+        return lhs * rhs;
     }
 
+    @Override
+    protected double evaluateDouble(double lhs, double rhs) throws HyracksDataException {
+        int signLhs = lhs > 0 ? 1 : (lhs < 0 ? -1 : 0);
+        int signRhs = rhs > 0 ? 1 : (rhs < 0 ? -1 : 0);
+        double maximum = signLhs == signRhs ? Double.MAX_VALUE : -Double.MAX_VALUE;
+
+        if (lhs != 0 && (rhs > 0 && rhs > maximum / lhs || rhs < 0 && rhs < maximum / lhs))
+            throw new HyracksDataException("Overflow Happened.");
+
+        return lhs * rhs;
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java
new file mode 100644
index 0000000..505277e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java
@@ -0,0 +1,147 @@
+/*
+ * Numeric function Round
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericRoundDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericRoundDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_ROUND;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue(val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue(val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue(val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue(val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                val = Math.round(val);
+                                aFloat.setValue(val);
+                                serde.serialize(aFloat, out);
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                val = Math.round(val);
+                                aDouble.setValue(val);
+                                serde.serialize(aDouble, out);
+                            } else {
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_ROUND.getName()
+                                        + ": not implemented for "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java
new file mode 100644
index 0000000..6613994
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java
@@ -0,0 +1,184 @@
+/*
+ * Numeric function Round half to even
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.math.BigDecimal;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericRoundHalfToEven2Descriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericRoundHalfToEven2Descriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN2;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator precision = args[1].createEvaluator(argOut);
+
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    private int getPrecision(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        precision.evaluate(tuple);
+
+                        if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                            return (int) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                        } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                            return (int) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                        } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                            return (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                        } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                            return (int) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                        } else {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN2.getName()
+                                    + ": the precision argument should be an INT8/INT16/INT32/INT64.");
+                        }
+                    }
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue(val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue(val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue(val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue(val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                if (Float.isNaN(val) || Float.isInfinite(val) || val == -0.0F || val == 0.0F) {
+                                    aFloat.setValue(val);
+                                    serde.serialize(aFloat, out);
+                                } else {
+                                    BigDecimal r = new BigDecimal(Float.toString(val));
+                                    aFloat.setValue(r.setScale(getPrecision(tuple), BigDecimal.ROUND_HALF_EVEN)
+                                            .floatValue());
+                                    serde.serialize(aFloat, out);
+                                }
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                if (Double.isNaN(val) || Double.isInfinite(val) || val == -0.0D || val == 0.0D) {
+                                    aDouble.setValue(val);
+                                    serde.serialize(aDouble, out);
+                                } else {
+                                    BigDecimal r = new BigDecimal(Double.toString(val));
+                                    aDouble.setValue(r.setScale(getPrecision(tuple), BigDecimal.ROUND_HALF_EVEN)
+                                            .doubleValue());
+                                    serde.serialize(aDouble, out);
+                                }
+                            } else {
+                                throw new NotImplementedException(
+                                        AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN2.getName()
+                                                + ": not implemented for "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                        .getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java
new file mode 100644
index 0000000..69cd990
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java
@@ -0,0 +1,148 @@
+/*
+ * Numeric function Round half to even
+ * Author : Xiaoyu Ma@UC Irvine
+ * 01/30/2012
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class NumericRoundHalfToEvenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericRoundHalfToEvenDescriptor();
+        }
+    };
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN;
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+                    private byte serNullTypeTag = ATypeTag.NULL.serialize();
+                    private byte serInt8TypeTag = ATypeTag.INT8.serialize();
+                    private byte serInt16TypeTag = ATypeTag.INT16.serialize();
+                    private byte serInt32TypeTag = ATypeTag.INT32.serialize();
+                    private byte serInt64TypeTag = ATypeTag.INT64.serialize();
+                    private byte serFloatTypeTag = ATypeTag.FLOAT.serialize();
+                    private byte serDoubleTypeTag = ATypeTag.DOUBLE.serialize();
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    private AMutableFloat aFloat = new AMutableFloat(0);
+                    private AMutableInt64 aInt64 = new AMutableInt64(0);
+                    private AMutableInt32 aInt32 = new AMutableInt32(0);
+                    private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+                    private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+                    @SuppressWarnings("rawtypes")
+                    private ISerializerDeserializer serde;
+
+                    @SuppressWarnings("unchecked")
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ANULL);
+                                serde.serialize(ANull.NULL, out);
+                                return;
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT8);
+                                byte val = (byte) AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
+                                aInt8.setValue(val);
+                                serde.serialize(aInt8, out);
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT16);
+                                short val = (short) AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
+                                aInt16.setValue(val);
+                                serde.serialize(aInt16, out);
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT32);
+                                int val = (int) AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
+                                aInt32.setValue(val);
+                                serde.serialize(aInt32, out);
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AINT64);
+                                long val = (long) AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
+                                aInt64.setValue(val);
+                                serde.serialize(aInt64, out);
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.AFLOAT);
+                                float val = (float) AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
+                                aFloat.setValue((float) Math.rint(val));
+                                serde.serialize(aFloat, out);
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
+                                serde = AqlSerializerDeserializerProvider.INSTANCE
+                                        .getSerializerDeserializer(BuiltinType.ADOUBLE);
+                                double val = (double) ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
+                                aDouble.setValue(Math.rint(val));
+                                serde.serialize(aDouble, out);
+                            } else {
+                                throw new NotImplementedException(
+                                        AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN.getName()
+                                                + ": not implemented for "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                        .getByteArray()[0]));
+                            }
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
index 51dab06..ca68215 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -17,46 +16,52 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class NumericSubtractDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-subtract", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericSubtractDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_SUBTRACT;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
                     private DataOutput out = output.getDataOutput();
                     // one temp. buffer re-used by both children
                     private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator evalLeft = args[0].createEvaluator(argOut);
-                    private IEvaluator evalRight = args[1].createEvaluator(argOut);
+                    private ICopyEvaluator evalLeft = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator evalRight = args[1].createEvaluator(argOut);
                     private double[] operands = new double[args.length];
                     private boolean metInt8 = false, metInt16 = false, metInt32 = false, metInt64 = false,
                             metFloat = false, metDouble = false;
@@ -67,7 +72,7 @@
                     private AMutableInt32 aInt32 = new AMutableInt32(0);
                     private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
                     private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
+                    @SuppressWarnings("rawtypes")
                     private ISerializerDeserializer serde;
 
                     @SuppressWarnings("unchecked")
@@ -81,36 +86,36 @@
                                     evalLeft.evaluate(tuple);
                                 else
                                     evalRight.evaluate(tuple);
-                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]);
+                                typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]);
                                 switch (typeTag) {
                                     case INT8: {
                                         metInt8 = true;
-                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getBytes(), 1);
+                                        operands[i] = AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case INT16: {
                                         metInt16 = true;
-                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1);
+                                        operands[i] = AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case INT32: {
                                         metInt32 = true;
-                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getBytes(), 1);
+                                        operands[i] = AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case INT64: {
                                         metInt64 = true;
-                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getBytes(), 1);
+                                        operands[i] = AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case FLOAT: {
                                         metFloat = true;
-                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getBytes(), 1);
+                                        operands[i] = AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case DOUBLE: {
                                         metDouble = true;
-                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(), 1);
+                                        operands[i] = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1);
                                         break;
                                     }
                                     case NULL: {
@@ -120,11 +125,12 @@
                                         return;
                                     }
                                     default: {
-                                        throw new NotImplementedException(i == 0 ? "Left"
-                                                : "Right"
-                                                        + " Operand of Substraction can not be "
+                                        throw new NotImplementedException(
+                                                AsterixBuiltinFunctions.NUMERIC_SUBTRACT.getName()
+                                                        + (i == 0 ? ": left" : ": right")
+                                                        + " operand can not be "
                                                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
-                                                                .getBytes()[0]));
+                                                                .getByteArray()[0]));
                                     }
                                 }
                             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
index 38808bb..4192b6d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -17,40 +16,46 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class NumericUnaryMinusDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-unary-minus", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericUnaryMinusDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
                     private byte serNullTypeTag = ATypeTag.NULL.serialize();
                     private byte serInt8TypeTag = ATypeTag.INT8.serialize();
                     private byte serInt16TypeTag = ATypeTag.INT16.serialize();
@@ -64,7 +69,7 @@
                     private AMutableInt32 aInt32 = new AMutableInt32(0);
                     private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
                     private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-                    @SuppressWarnings("unchecked")
+                    @SuppressWarnings("rawtypes")
                     private ISerializerDeserializer serde;
 
                     @SuppressWarnings("unchecked")
@@ -73,44 +78,45 @@
                         argOut.reset();
                         eval.evaluate(tuple);
                         try {
-                            if (argOut.getBytes()[0] == serNullTypeTag) {
+                            if (argOut.getByteArray()[0] == serNullTypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.ANULL);
                                 serde.serialize(ANull.NULL, out);
                                 return;
-                            } else if (argOut.getBytes()[0] == serInt8TypeTag) {
+                            } else if (argOut.getByteArray()[0] == serInt8TypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.AINT8);
-                                aInt8.setValue((byte) -AInt8SerializerDeserializer.getByte(argOut.getBytes(), 1));
+                                aInt8.setValue((byte) -AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1));
                                 serde.serialize(aInt8, out);
-                            } else if (argOut.getBytes()[0] == serInt16TypeTag) {
+                            } else if (argOut.getByteArray()[0] == serInt16TypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.AINT16);
-                                aInt16.setValue((short) -AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1));
+                                aInt16.setValue((short) -AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1));
                                 serde.serialize(aInt16, out);
-                            } else if (argOut.getBytes()[0] == serInt32TypeTag) {
+                            } else if (argOut.getByteArray()[0] == serInt32TypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.AINT32);
-                                aInt32.setValue(-AInt32SerializerDeserializer.getInt(argOut.getBytes(), 1));
+                                aInt32.setValue(-AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1));
                                 serde.serialize(aInt32, out);
-                            } else if (argOut.getBytes()[0] == serInt64TypeTag) {
+                            } else if (argOut.getByteArray()[0] == serInt64TypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.AINT64);
-                                aInt64.setValue(-AInt64SerializerDeserializer.getLong(argOut.getBytes(), 1));
+                                aInt64.setValue(-AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1));
                                 serde.serialize(aInt64, out);
-                            } else if (argOut.getBytes()[0] == serFloatTypeTag) {
+                            } else if (argOut.getByteArray()[0] == serFloatTypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.AFLOAT);
-                                aFloat.setValue(-AFloatSerializerDeserializer.getFloat(argOut.getBytes(), 1));
+                                aFloat.setValue(-AFloatSerializerDeserializer.getFloat(argOut.getByteArray(), 1));
                                 serde.serialize(aFloat, out);
-                            } else if (argOut.getBytes()[0] == serDoubleTypeTag) {
+                            } else if (argOut.getByteArray()[0] == serDoubleTypeTag) {
                                 serde = AqlSerializerDeserializerProvider.INSTANCE
                                         .getSerializerDeserializer(BuiltinType.ADOUBLE);
-                                aDouble.setValue(-ADoubleSerializerDeserializer.getDouble(argOut.getBytes(), 1));
+                                aDouble.setValue(-ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(), 1));
                                 serde.serialize(aDouble, out);
                             } else {
-                                throw new NotImplementedException("Unary minus is not implemented for "
-                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getBytes()[0]));
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS.getName()
+                                        + ": not implemented for "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
                             }
                         } catch (HyracksDataException e) {
                             throw new AlgebricksException(e);
@@ -123,7 +129,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
index f1cbdca..81ae62b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
@@ -1,25 +1,46 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class OpenRecordConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
-    protected static final FunctionIdentifier FID_OPEN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "open-record-constructor", FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new OpenRecordConstructorDescriptor();
+        }
+    };
 
     private static final long serialVersionUID = 1L;
     private ARecordType recType;
@@ -32,19 +53,19 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID_OPEN;
+        return AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 int n = args.length / 2;
-                final IEvaluator[] evalNames = new IEvaluator[n];
-                final IEvaluator[] evalFields = new IEvaluator[n];
+                final ICopyEvaluator[] evalNames = new ICopyEvaluator[n];
+                final ICopyEvaluator[] evalFields = new ICopyEvaluator[n];
                 final ArrayBackedValueStorage fieldNameBuffer = new ArrayBackedValueStorage();
                 final ArrayBackedValueStorage fieldValueBuffer = new ArrayBackedValueStorage();
                 for (int i = 0; i < n; i++) {
@@ -52,7 +73,7 @@
                     evalFields[i] = args[2 * i + 1].createEvaluator(fieldValueBuffer);
                 }
                 final DataOutput out = output.getDataOutput();
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
                     private RecordBuilder recBuilder = new RecordBuilder();
                     private int closedFieldId;
                     private boolean first = true;
@@ -74,15 +95,15 @@
                                     evalNames[i].evaluate(tuple);
                                     recBuilder.addField(fieldNameBuffer, fieldValueBuffer);
                                 } else {
-                                    if (fieldValueBuffer.getBytes()[0] != ATypeTag.NULL.serialize()) {
+                                    if (fieldValueBuffer.getByteArray()[0] != ATypeTag.NULL.serialize()) {
                                         recBuilder.addField(closedFieldId, fieldValueBuffer);
                                     }
                                     closedFieldId++;
                                 }
                             }
                             recBuilder.write(out, true);
-                        } catch (IOException ioe) {
-                            throw new AlgebricksException(ioe);
+                        } catch (IOException | AsterixException e) {
+                            throw new AlgebricksException(e);
                         }
                     }
                 };
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
index 9ed1cfd..44bba5c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
@@ -4,48 +4,53 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class OrDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, "or",
-            FunctionIdentifier.VARARGS, true);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new OrDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.OR;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 // one temp. buffer re-used by all children
                 final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                final IEvaluator[] evals = new IEvaluator[args.length];
+                final ICopyEvaluator[] evals = new ICopyEvaluator[args.length];
                 for (int i = 0; i < evals.length; i++) {
                     evals[i] = args[i].createEvaluator(argOut);
                 }
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ABOOLEAN);
@@ -62,11 +67,11 @@
                             for (int i = 0; i < n; i++) {
                                 argOut.reset();
                                 evals[i].evaluate(tuple);
-                                if (argOut.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                                if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                     metNull = true;
                                     continue;
                                 }
-                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getBytes(), 1);
+                                boolean argResult = ABooleanSerializerDeserializer.getBoolean(argOut.getByteArray(), 1);
                                 if (argResult == true) {
                                     res = true;
                                     break;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
index 61c1d8c..bd19cad 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
@@ -4,23 +4,28 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class OrderedListConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "ordered-list-constructor", FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new OrderedListConstructorDescriptor();
+        }
+    };
 
     private AOrderedListType oltype;
 
@@ -30,24 +35,24 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new OrderedListConstructorEvaluatorFactory(args, oltype);
     }
 
-    private static class OrderedListConstructorEvaluatorFactory implements IEvaluatorFactory {
+    private static class OrderedListConstructorEvaluatorFactory implements ICopyEvaluatorFactory {
 
         private static final long serialVersionUID = 1L;
-        private IEvaluatorFactory[] args;
+        private ICopyEvaluatorFactory[] args;
 
         private boolean selfDescList = false;
 
         private AOrderedListType orderedlistType;
 
-        public OrderedListConstructorEvaluatorFactory(IEvaluatorFactory[] args, AOrderedListType type) {
+        public OrderedListConstructorEvaluatorFactory(ICopyEvaluatorFactory[] args, AOrderedListType type) {
             this.args = args;
 
             this.orderedlistType = type;
@@ -57,15 +62,15 @@
         }
 
         @Override
-        public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+        public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
             final DataOutput out = output.getDataOutput();
             final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-            final IEvaluator[] argEvals = new IEvaluator[args.length];
+            final ICopyEvaluator[] argEvals = new ICopyEvaluator[args.length];
             for (int i = 0; i < args.length; i++) {
                 argEvals[i] = args[i].createEvaluator(inputVal);
             }
 
-            return new IEvaluator() {
+            return new ICopyEvaluator() {
 
                 private OrderedListBuilder builder = new OrderedListBuilder();
 
@@ -89,7 +94,7 @@
                     try {
                         for (int i = 0; i < argEvals.length; i++) {
                             inputVal.reset();
-                            argEvals[i].evaluate(tuple);
+                            argEvals[i].evaluate(tuple);                            
                             builder.addItem(inputVal);
                         }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
index 1c1d9b48..10d8ff0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
@@ -8,42 +8,57 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityFiltersCache;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFilters;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class PrefixLenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "prefix-len", 3,
-            true);
+
+    // allowed input types
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+    private final static byte SER_DOUBLE_TYPE_TAG = ATypeTag.DOUBLE.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "prefix-len@3",
+            3);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PrefixLenDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private final DataOutput out = output.getDataOutput();
                     private final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private final IEvaluator evalLen = args[0].createEvaluator(inputVal);
-                    private final IEvaluator evalSimilarity = args[1].createEvaluator(inputVal);
-                    private final IEvaluator evalThreshold = args[2].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalLen = args[0].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalSimilarity = args[1].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalThreshold = args[2].createEvaluator(inputVal);
 
                     private final SimilarityFiltersCache similarityFiltersCache = new SimilarityFiltersCache();
 
@@ -58,19 +73,34 @@
                         // length
                         inputVal.reset();
                         evalLen.evaluate(tuple);
-                        int length = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        if (inputVal.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type Int32 for the first argument, but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
+                        int length = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                         // similarity threshold
                         inputVal.reset();
                         evalThreshold.evaluate(tuple);
+                        if (inputVal.getByteArray()[0] != SER_DOUBLE_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type DOUBLE for the second argument, but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
                         float similarityThreshold = (float) ADoubleSerializerDeserializer.getDouble(
-                                inputVal.getBytes(), 1);
+                                inputVal.getByteArray(), 1);
 
                         // similarity name
                         inputVal.reset();
                         evalSimilarity.evaluate(tuple);
+                        if (inputVal.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type STRING for the third argument, but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
                         SimilarityFilters similarityFilters = similarityFiltersCache.get(similarityThreshold,
-                                inputVal.getBytes());
+                                inputVal.getByteArray());
 
                         int prefixLength = similarityFilters.getPrefixLength(length);
                         res.setValue(prefixLength);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
index fa6d47c..3e4a515 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
@@ -3,45 +3,57 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFiltersJaccard;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class PrefixLenJaccardDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "prefix-len-jaccard", 2, true);
+
+    // allowed input types
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+    private final static byte SER_FLOAT_TYPE_TAG = ATypeTag.FLOAT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PrefixLenJaccardDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private final DataOutput out = output.getDataOutput();
                     private final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private final IEvaluator evalLen = args[0].createEvaluator(inputVal);
-                    private final IEvaluator evalThreshold = args[1].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalLen = args[0].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalThreshold = args[1].createEvaluator(inputVal);
 
                     private float similarityThresholdCache;
                     private SimilarityFiltersJaccard similarityFilters;
@@ -57,13 +69,23 @@
                         // length
                         inputVal.reset();
                         evalLen.evaluate(tuple);
-                        int length = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        if (inputVal.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.PREFIX_LEN_JACCARD.getName()
+                                    + ": expects type Int32 the first argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
+                        int length = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                         // similarity threshold
                         inputVal.reset();
                         evalThreshold.evaluate(tuple);
-                        float similarityThreshold = (float) AFloatSerializerDeserializer.getFloat(inputVal.getBytes(),
-                                1);
+                        if (inputVal.getByteArray()[0] != SER_FLOAT_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.PREFIX_LEN_JACCARD.getName()
+                                    + ": expects type FLOAT the first argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
+                        float similarityThreshold = (float) AFloatSerializerDeserializer.getFloat(
+                                inputVal.getByteArray(), 1);
 
                         if (similarityThreshold != similarityThresholdCache || similarityFilters == null) {
                             similarityFilters = new SimilarityFiltersJaccard(similarityThreshold);
@@ -85,7 +107,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.PREFIX_LEN_JACCARD;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
index 0da578f..c91bcb2 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
@@ -6,27 +6,29 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ByteArrayAccessibleOutputStream;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 /**
@@ -37,36 +39,43 @@
 public class RegExpDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "reg-exp", 2,
-            true);
+
+    // allowed input types
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new RegExpDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.REG_EXP;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
 
                 final DataOutput dout = output.getDataOutput();
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private boolean first = true;
                     private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
-                    private IEvaluator evalString = args[0].createEvaluator(array0);
-                    private IEvaluator evalPattern = args[1].createEvaluator(array0);
+                    private ICopyEvaluator evalString = args[0].createEvaluator(array0);
+                    private ICopyEvaluator evalPattern = args[1].createEvaluator(array0);
                     private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
                     private UTF8CharSequence carSeq = new UTF8CharSequence();
                     private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
-                            .getBinaryComparatorFactory(BuiltinType.ASTRING, OrderKind.ASC).createBinaryComparator();
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ASTRING);
@@ -85,24 +94,29 @@
                         try {
                             array0.reset();
                             evalPattern.evaluate(tuple);
-                            if (array0.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, dout);
                                 return;
                             }
+                            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.REG_EXP.getName()
+                                        + ": expects type STRING/NULL for the first input argument but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]));
+                            }
                             boolean newPattern = false;
                             if (first) {
                                 first = false;
                                 newPattern = true;
                             } else {
-                                int c = strComp.compare(array0.getBytes(), array0.getStartIndex(), array0.getLength(),
-                                        lastPattern.getByteArray(), 0, lastPattern.size());
+                                int c = strComp.compare(array0.getByteArray(), array0.getStartOffset(),
+                                        array0.getLength(), lastPattern.getByteArray(), 0, lastPattern.size());
                                 if (c != 0) {
                                     newPattern = true;
                                 }
                             }
                             if (newPattern) {
                                 lastPattern.reset();
-                                lastPattern.write(array0.getBytes(), array0.getStartIndex(), array0.getLength());
+                                lastPattern.write(array0.getByteArray(), array0.getStartOffset(), array0.getLength());
                                 // ! object creation !
                                 DataInputStream di = new DataInputStream(new ByteArrayInputStream(
                                         lastPattern.getByteArray()));
@@ -112,10 +126,15 @@
                             }
                             array0.reset();
                             evalString.evaluate(tuple);
-                            if (array0.getBytes()[0] == SER_NULL_TYPE_TAG) {
+                            if (array0.getByteArray()[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, dout);
                                 return;
                             }
+                            if (array0.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.REG_EXP.getName()
+                                        + ": expects type STRING/NULL for the second input argument but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(array0.getByteArray()[0]));
+                            }
                             carSeq.reset(array0, 1);
                             if (newPattern) {
                                 matcher = pattern.matcher(carSeq);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
index cbfc727..123e653 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
@@ -11,6 +11,8 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
@@ -20,45 +22,54 @@
 import edu.uci.ics.fuzzyjoin.similarity.PartialIntersect;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityFilters;
 import edu.uci.ics.fuzzyjoin.similarity.SimilarityMetric;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class SimilarityDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "similarity", 7,
-            true);
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "similarity@7",
+            7);
 
+    private final static byte SER_DOUBLE_TYPE_TAG = ATypeTag.DOUBLE.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
 
-    @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityDescriptor();
+        }
+    };
 
-        return new IEvaluatorFactory() {
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     private final DataOutput out = output.getDataOutput();
                     private final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private final IEvaluator evalLen1 = args[0].createEvaluator(inputVal);
-                    private final IEvaluator evalTokens1 = args[1].createEvaluator(inputVal);
-                    private final IEvaluator evalLen2 = args[2].createEvaluator(inputVal);
-                    private final IEvaluator evalTokens2 = args[3].createEvaluator(inputVal);
-                    private final IEvaluator evalTokenPrefix = args[4].createEvaluator(inputVal);
-                    private final IEvaluator evalSimilarity = args[5].createEvaluator(inputVal);
-                    private final IEvaluator evalThreshold = args[6].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalLen1 = args[0].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalTokens1 = args[1].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalLen2 = args[2].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalTokens2 = args[3].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalTokenPrefix = args[4].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalSimilarity = args[5].createEvaluator(inputVal);
+                    private final ICopyEvaluator evalThreshold = args[6].createEvaluator(inputVal);
 
                     private final SimilarityFiltersCache similarityFiltersCache = new SimilarityFiltersCache();
 
@@ -77,22 +88,42 @@
                         // similarity threshold
                         inputVal.reset();
                         evalThreshold.evaluate(tuple);
+                        if (inputVal.getByteArray()[0] != SER_DOUBLE_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type DOUBLE for the first argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
                         float similarityThreshold = (float) ADoubleSerializerDeserializer.getDouble(
-                                inputVal.getBytes(), 1);
+                                inputVal.getByteArray(), 1);
 
                         // similarity name
                         inputVal.reset();
                         evalSimilarity.evaluate(tuple);
+                        if (inputVal.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type STRING for the second argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
                         SimilarityFilters similarityFilters = similarityFiltersCache.get(similarityThreshold,
-                                inputVal.getBytes());
+                                inputVal.getByteArray());
 
                         inputVal.reset();
                         evalLen1.evaluate(tuple);
-                        int length1 = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        if (inputVal.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type INT32 for the thrid argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
+                        int length1 = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                         inputVal.reset();
                         evalLen2.evaluate(tuple);
-                        int length2 = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        if (inputVal.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(FID.getName()
+                                    + ": expects type INT32 for the fourth argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getByteArray()[0]));
+                        }
+                        int length2 = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                         float sim = 0;
 
@@ -107,16 +138,16 @@
                             inputVal.reset();
                             evalTokens1.evaluate(tuple);
 
-                            byte[] serList = inputVal.getBytes();
+                            byte[] serList = inputVal.getByteArray();
                             if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
-                                throw new AlgebricksException("Scan collection is not defined for values of type"
+                                throw new AlgebricksException(FID.getName() + ": not defined for values of type"
                                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
                             }
 
                             int lengthTokens1;
                             if (serList[0] == SER_ORDEREDLIST_TYPE_TAG) {
-                                lengthTokens1 = AOrderedListSerializerDeserializer
-                                        .getNumberOfItems(inputVal.getBytes());
+                                lengthTokens1 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal
+                                        .getByteArray());
                                 // read tokens
                                 for (i = 0; i < lengthTokens1; i++) {
                                     int itemOffset;
@@ -129,7 +160,7 @@
                                 }
                             } else {
                                 lengthTokens1 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal
-                                        .getBytes());
+                                        .getByteArray());
                                 // read tokens
                                 for (i = 0; i < lengthTokens1; i++) {
                                     int itemOffset;
@@ -151,16 +182,16 @@
                             inputVal.reset();
                             evalTokens2.evaluate(tuple);
 
-                            serList = inputVal.getBytes();
+                            serList = inputVal.getByteArray();
                             if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
-                                throw new AlgebricksException("Scan collection is not defined for values of type"
+                                throw new AlgebricksException(FID.getName() + ": not defined for values of type"
                                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
                             }
 
                             int lengthTokens2;
                             if (serList[0] == SER_ORDEREDLIST_TYPE_TAG) {
-                                lengthTokens2 = AOrderedListSerializerDeserializer
-                                        .getNumberOfItems(inputVal.getBytes());
+                                lengthTokens2 = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal
+                                        .getByteArray());
                                 // read tokens
                                 for (i = 0; i < lengthTokens2; i++) {
                                     int itemOffset;
@@ -173,7 +204,7 @@
                                 }
                             } else {
                                 lengthTokens2 = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal
-                                        .getBytes());
+                                        .getByteArray());
                                 // read tokens
                                 for (i = 0; i < lengthTokens2; i++) {
                                     int itemOffset;
@@ -193,7 +224,7 @@
                             // -- - token prefix - --
                             inputVal.reset();
                             evalTokenPrefix.evaluate(tuple);
-                            int tokenPrefix = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                            int tokenPrefix = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                             //
                             // -- - position filter - --
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
index b84019d..eb13fde 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
@@ -1,42 +1,32 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import java.io.IOException;
-
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
-import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardEvaluator;
+import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardCheckEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-
-//assumes that both arguments are sorted by the same ordering
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class SimilarityJaccardCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-check", 3, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardCheckDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 return new SimilarityJaccardCheckEvaluator(args, output);
             }
         };
@@ -44,68 +34,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK;
     }
-
-    private static class SimilarityJaccardCheckEvaluator extends SimilarityJaccardEvaluator {
-
-        private final IEvaluator jaccThreshEval;
-        private float jaccThresh = -1f;
-
-        private IAOrderedListBuilder listBuilder;
-        private ArrayBackedValueStorage inputVal;
-        @SuppressWarnings("unchecked")
-        private final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
-                .getSerializerDeserializer(BuiltinType.ABOOLEAN);
-        private final AOrderedListType listType = new AOrderedListType(BuiltinType.ANY, "list");
-
-        public SimilarityJaccardCheckEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output)
-                throws AlgebricksException {
-            super(args, output);
-            jaccThreshEval = args[2].createEvaluator(argOut);
-            listBuilder = new OrderedListBuilder();
-            inputVal = new ArrayBackedValueStorage();
-        }
-
-        @Override
-        protected void runArgEvals(IFrameTupleReference tuple) throws AlgebricksException {
-            super.runArgEvals(tuple);
-            int jaccThreshStart = argOut.getLength();
-            jaccThreshEval.evaluate(tuple);
-            jaccThresh = (float) AFloatSerializerDeserializer.getFloat(argOut.getBytes(), jaccThreshStart
-                    + typeIndicatorSize);
-        }
-
-        @Override
-        protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
-                throws AlgebricksException {
-            firstListIter.reset(bytes, firstStart);
-            secondListIter.reset(bytes, secondStart);
-            // Check for special case where one of the lists is empty, since
-            // list types won't match.
-            if (firstListIter.size() == 0 || secondListIter.size() == 0) {
-                return (jaccThresh == 0.0f) ? 0.0f : -1.0f;
-            }
-            if (firstTypeTag == ATypeTag.ANY || secondTypeTag == ATypeTag.ANY)
-                throw new AlgebricksException("\n Jaccard can only be called on homogenous lists");
-            return jaccard.getSimilarity(firstListIter, secondListIter, jaccThresh);
-        }
-
-        @Override
-        protected void writeResult(float jacc) throws IOException {
-            listBuilder.reset(listType);
-            boolean matches = (jacc < 0) ? false : true;
-            inputVal.reset();
-            booleanSerde.serialize(matches ? ABoolean.TRUE : ABoolean.FALSE, inputVal.getDataOutput());
-            listBuilder.addItem(inputVal);
-
-            inputVal.reset();
-            aFloat.setValue((matches) ? jacc : 0.0f);
-            floatSerde.serialize(aFloat, inputVal.getDataOutput());
-            listBuilder.addItem(inputVal);
-
-            listBuilder.write(out, true);
-        }
-    }
-
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
index 4c598cc..f5f9caf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
@@ -1,29 +1,32 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-
-//assumes that both arguments are sorted by the same ordering
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class SimilarityJaccardDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
                 return new SimilarityJaccardEvaluator(args, output);
             }
         };
@@ -31,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
index c8b1c9b..b909bc0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
@@ -2,39 +2,43 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardPrefixEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class SimilarityJaccardPrefixCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-prefix-check", 6, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardPrefixCheckDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 return new SimilarityJaccardPrefixCheckEvaluator(args, output);
             }
         };
@@ -42,12 +46,12 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_PREFIX_CHECK;
     }
 
     private static class SimilarityJaccardPrefixCheckEvaluator extends SimilarityJaccardPrefixEvaluator {
 
-        private final IAOrderedListBuilder listBuilder;
+        private final OrderedListBuilder listBuilder;
         private ArrayBackedValueStorage inputVal;
         @SuppressWarnings("unchecked")
         private final ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
@@ -59,7 +63,7 @@
 
         private final AOrderedListType listType = new AOrderedListType(BuiltinType.ANY, "list");
 
-        public SimilarityJaccardPrefixCheckEvaluator(IEvaluatorFactory[] args, IDataOutputProvider output)
+        public SimilarityJaccardPrefixCheckEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
                 throws AlgebricksException {
             super(args, output);
             listBuilder = new OrderedListBuilder();
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
index eee64ea..79a0894 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
@@ -1,27 +1,32 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardPrefixEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 
 public class SimilarityJaccardPrefixDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-prefix", 6, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardPrefixDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 return new SimilarityJaccardPrefixEvaluator(args, output);
             }
         };
@@ -29,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_PREFIX;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java
new file mode 100644
index 0000000..962f736
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java
@@ -0,0 +1,40 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardSortedCheckEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+// Assumes that both arguments are sorted by the same ordering.
+public class SimilarityJaccardSortedCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardSortedCheckDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                return new SimilarityJaccardSortedCheckEvaluator(args, output);
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_SORTED_CHECK;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java
new file mode 100644
index 0000000..d14801c
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java
@@ -0,0 +1,41 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.common.SimilarityJaccardSortedEvaluator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+
+// Assumes that both arguments are sorted by the same ordering.
+public class SimilarityJaccardSortedDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SimilarityJaccardSortedDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                return new SimilarityJaccardSortedEvaluator(args, output);
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_SORTED;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
index 0b1d2b9e..15e4b40 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
@@ -3,44 +3,57 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.SpatialUtils;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SpatialAreaDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "spatial-area",
-            1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SpatialAreaDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
-                    private DataOutput out = output.getDataOutput();
-                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator eval = args[0].createEvaluator(argOut);
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -48,46 +61,55 @@
                         eval.evaluate(tuple);
 
                         try {
-                            byte[] bytes = argOut.getBytes();
+                            byte[] bytes = argOut.getByteArray();
                             ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes[0]);
                             double area = 0.0;
 
                             switch (tag) {
                                 case POLYGON:
-                                    int numOfPoints = AInt16SerializerDeserializer.getShort(argOut.getBytes(), 1);
+                                    int numOfPoints = AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1);
 
                                     if (numOfPoints < 3) {
-                                        throw new AlgebricksException("Polygon must have at least 3 points");
+                                        throw new AlgebricksException(AsterixBuiltinFunctions.SPATIAL_AREA.getName()
+                                                + ": polygon must have at least 3 points");
                                     }
-                                    area = Math.abs(SpatialUtils.polygonArea(argOut.getBytes(), numOfPoints));
+                                    area = Math.abs(SpatialUtils.polygonArea(argOut.getByteArray(), numOfPoints));
+                                    out.writeByte(ATypeTag.DOUBLE.serialize());
+                                    out.writeDouble(area);
                                     break;
                                 case CIRCLE:
-                                    double radius = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(),
+                                    double radius = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(),
                                             ACircleSerializerDeserializer.getRadiusOffset());
                                     area = SpatialUtils.pi() * radius * radius;
+                                    out.writeByte(ATypeTag.DOUBLE.serialize());
+                                    out.writeDouble(area);
                                     break;
                                 case RECTANGLE:
-                                    double x1 = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(),
+                                    double x1 = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(),
                                             ARectangleSerializerDeserializer
                                                     .getBottomLeftCoordinateOffset(Coordinate.X));
-                                    double y1 = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(),
+                                    double y1 = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(),
                                             ARectangleSerializerDeserializer
                                                     .getBottomLeftCoordinateOffset(Coordinate.Y));
 
-                                    double x2 = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(),
+                                    double x2 = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(),
                                             ARectangleSerializerDeserializer
                                                     .getUpperRightCoordinateOffset(Coordinate.X));
-                                    double y2 = ADoubleSerializerDeserializer.getDouble(argOut.getBytes(),
+                                    double y2 = ADoubleSerializerDeserializer.getDouble(argOut.getByteArray(),
                                             ARectangleSerializerDeserializer
                                                     .getUpperRightCoordinateOffset(Coordinate.Y));
                                     area = (x2 - x1) * (y2 - y1);
+                                    out.writeByte(ATypeTag.DOUBLE.serialize());
+                                    out.writeDouble(area);
+                                    break;
+                                case NULL:
+                                    nullSerde.serialize(ANull.NULL, out);
                                     break;
                                 default:
-                                    throw new NotImplementedException("spatial-area does not support the type: " + tag
-                                            + " It is only implemented for POLYGON, CIRCLE and RECTANGLE.");
+                                    throw new NotImplementedException(AsterixBuiltinFunctions.SPATIAL_AREA.getName()
+                                            + ": does not support the type: " + tag
+                                            + "; it is only implemented for POLYGON, CIRCLE and RECTANGLE.");
                             }
-                            out.writeByte(ATypeTag.DOUBLE.serialize());
-                            out.writeDouble(area);
                         } catch (HyracksDataException hde) {
                             throw new AlgebricksException(hde);
                         } catch (IOException e) {
@@ -101,7 +123,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_AREA;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
index c2a6d6b..9c344ad 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
@@ -3,57 +3,66 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
+import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.ARectangle;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SpatialCellDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "spatial-cell",
-            4, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SpatialCellDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
-                    private DataOutput out = output.getDataOutput();
+                    private final DataOutput out = output.getDataOutput();
 
-                    private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
-                    private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private ArrayBackedValueStorage outInput2 = new ArrayBackedValueStorage();
-                    private ArrayBackedValueStorage outInput3 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
-                    private IEvaluator eval2 = args[2].createEvaluator(outInput2);
-                    private IEvaluator eval3 = args[3].createEvaluator(outInput3);
-                    private AMutableRectangle aRectangle = new AMutableRectangle(null, null);
-                    private AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
+                    private final ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
+                    private final ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
+                    private final ArrayBackedValueStorage outInput2 = new ArrayBackedValueStorage();
+                    private final ArrayBackedValueStorage outInput3 = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private final ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private final ICopyEvaluator eval2 = args[2].createEvaluator(outInput2);
+                    private final ICopyEvaluator eval3 = args[3].createEvaluator(outInput3);
+                    private final AMutableRectangle aRectangle = new AMutableRectangle(null, null);
+                    private final AMutablePoint[] aPoint = { new AMutablePoint(0, 0), new AMutablePoint(0, 0) };
+
                     @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer<ARectangle> rectangleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ARectangle> rectangleSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ARECTANGLE);
 
                     @Override
@@ -68,20 +77,28 @@
                         eval3.evaluate(tuple);
 
                         try {
-                            ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getBytes()[0]);
-                            if (tag == ATypeTag.POINT) {
-                                double xLoc = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                            ATypeTag tag0 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput0.getByteArray()[0]);
+                            ATypeTag tag1 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput1.getByteArray()[0]);
+                            ATypeTag tag2 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput2.getByteArray()[0]);
+                            ATypeTag tag3 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput3.getByteArray()[0]);
+                            if (tag0 == ATypeTag.POINT && tag1 == ATypeTag.POINT && tag2 == ATypeTag.DOUBLE
+                                    && tag3 == ATypeTag.DOUBLE) {
+                                double xLoc = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
-                                double yLoc = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                double yLoc = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
 
-                                double xOrigin = ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                double xOrigin = ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
-                                double yOrigin = ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                double yOrigin = ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
 
-                                double xInc = ADoubleSerializerDeserializer.getDouble(outInput2.getBytes(), 1);
-                                double yInc = ADoubleSerializerDeserializer.getDouble(outInput3.getBytes(), 1);
+                                double xInc = ADoubleSerializerDeserializer.getDouble(outInput2.getByteArray(), 1);
+                                double yInc = ADoubleSerializerDeserializer.getDouble(outInput3.getByteArray(), 1);
 
                                 double x = xOrigin + (Math.floor((xLoc - xOrigin) / xInc)) * xInc;
                                 double y = yOrigin + (Math.floor((yLoc - yOrigin) / yInc)) * yInc;
@@ -89,9 +106,24 @@
                                 aPoint[1].setValue(x + xInc, y + yInc);
                                 aRectangle.setValue(aPoint[0], aPoint[1]);
                                 rectangleSerde.serialize(aRectangle, out);
+                            } else if (tag0 == ATypeTag.NULL || tag1 == ATypeTag.NULL || tag2 == ATypeTag.NULL
+                                    || tag3 == ATypeTag.NULL) {
+                                nullSerde.serialize(ANull.NULL, out);
                             } else {
-                                throw new NotImplementedException("spatial-cell does not support the type: " + tag
-                                        + " It is only implemented for POINT.");
+                                throw new AlgebricksException(
+                                        AsterixBuiltinFunctions.SPATIAL_CELL.getName()
+                                                + ": expects input type: (POINT, POINT, DOUBLE, DOUBLE) but got ("
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0
+                                                        .getByteArray()[0])
+                                                + ", "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1
+                                                        .getByteArray()[0])
+                                                + ", "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput2
+                                                        .getByteArray()[0])
+                                                + ", "
+                                                + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput3
+                                                        .getByteArray()[0]) + ").");
                             }
                         } catch (IOException e1) {
                             throw new AlgebricksException(e1);
@@ -104,7 +136,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_CELL;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
index 130ca4f..c1b965d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
@@ -3,43 +3,56 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SpatialDistanceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-distance", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SpatialDistanceDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
-                    private DataOutput out = output.getDataOutput();
-                    private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
-                    private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private final DataOutput out = output.getDataOutput();
+                    private final ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
+                    private final ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private final ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -49,29 +62,34 @@
                         eval1.evaluate(tuple);
 
                         try {
-                            byte[] bytes0 = outInput0.getBytes();
-                            byte[] bytes1 = outInput1.getBytes();
+                            byte[] bytes0 = outInput0.getByteArray();
+                            byte[] bytes1 = outInput1.getByteArray();
                             ATypeTag tag0 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes0[0]);
                             ATypeTag tag1 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes1[0]);
                             double distance = 0.0;
                             if (tag0 == ATypeTag.POINT) {
                                 if (tag1 == ATypeTag.POINT) {
-                                    double x1 = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                    double x1 = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
-                                    double y1 = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(),
+                                    double y1 = ADoubleSerializerDeserializer.getDouble(outInput0.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
-                                    double x2 = ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                    double x2 = ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
-                                    double y2 = ADoubleSerializerDeserializer.getDouble(outInput1.getBytes(),
+                                    double y2 = ADoubleSerializerDeserializer.getDouble(outInput1.getByteArray(),
                                             APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
                                     distance = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
                                 } else {
-                                    throw new NotImplementedException("spatial-distance does not support the type: "
-                                            + tag1 + " It is only implemented for POINT.");
+                                    throw new NotImplementedException(
+                                            AsterixBuiltinFunctions.SPATIAL_DISTANCE.getName()
+                                                    + ": does not support the type: " + tag1
+                                                    + "; it is only implemented for POINT.");
                                 }
+                            } else if (tag0 == ATypeTag.NULL || tag1 == ATypeTag.NULL) {
+                                nullSerde.serialize(ANull.NULL, out);
                             } else {
-                                throw new NotImplementedException("spatial-distance does not support the type: " + tag0
-                                        + " It is only implemented for POINT.");
+                                throw new NotImplementedException(AsterixBuiltinFunctions.SPATIAL_DISTANCE.getName()
+                                        + ": does not support the type: " + tag1
+                                        + "; it is only implemented for POINT.");
                             }
                             out.writeByte(ATypeTag.DOUBLE.serialize());
                             out.writeDouble(distance);
@@ -88,7 +106,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_DISTANCE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
index 315cafb..96d8a3c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
@@ -14,43 +13,50 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.DoubleArray;
 import edu.uci.ics.asterix.runtime.evaluators.common.SpatialUtils;
 import edu.uci.ics.fuzzyjoin.IntArray;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SpatialIntersectDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-intersect", 2, true);
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SpatialIntersectDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private final DataOutput out = output.getDataOutput();
                     private final ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage();
                     private final ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage();
-                    private final IEvaluator eval0 = args[0].createEvaluator(outInput0);
-                    private final IEvaluator eval1 = args[1].createEvaluator(outInput1);
+                    private final ICopyEvaluator eval0 = args[0].createEvaluator(outInput0);
+                    private final ICopyEvaluator eval1 = args[1].createEvaluator(outInput1);
                     private final IBinaryComparator ascDoubleComp = AqlBinaryComparatorFactoryProvider.DOUBLE_POINTABLE_INSTANCE
                             .createBinaryComparator();
                     private final SpatialUtils spatialUtils = new SpatialUtils();
@@ -61,25 +67,11 @@
                     private final DoubleArray trianglesX1 = new DoubleArray();
                     private final DoubleArray trianglesY1 = new DoubleArray();
 
-                    private boolean pointOnLine(byte[] bytes0, byte[] bytes1) throws HyracksDataException {
-                        double startX = ADoubleSerializerDeserializer.getDouble(bytes0,
-                                ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.X));
-                        double startY = ADoubleSerializerDeserializer.getDouble(bytes0,
-                                ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.Y));
-                        double endX = ADoubleSerializerDeserializer.getDouble(bytes0,
-                                ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X));
-                        double endY = ADoubleSerializerDeserializer.getDouble(bytes0,
-                                ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y));
-
-                        double pX = ADoubleSerializerDeserializer.getDouble(bytes1,
-                                APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
-                        double pY = ADoubleSerializerDeserializer.getDouble(bytes1,
-                                APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
-
+                    private boolean pointOnLine(double pX, double pY, double startX, double startY, double endX,
+                            double endY) throws HyracksDataException {
                         double crossProduct = SpatialUtils.crossProduct(pY - startY, pX - startX, endY - startY, endX
                                 - startX);
-                        if (Math.abs(crossProduct) > SpatialUtils.doubleEpsilon()) { // crossProduct
-                            // != 0
+                        if (Math.abs(crossProduct) > SpatialUtils.doubleEpsilon()) { // crossProduct != 0
                             return false;
                         }
 
@@ -96,8 +88,7 @@
                         return true;
                     }
 
-                    private boolean pointInPolygon(byte[] bytes0, byte[] bytes1) throws HyracksDataException { // ray
-                        // casting
+                    private boolean pointInPolygon(byte[] bytes0, byte[] bytes1) throws HyracksDataException { // ray casting
 
                         double pX = ADoubleSerializerDeserializer.getDouble(bytes0,
                                 APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
@@ -107,7 +98,8 @@
                                 APolygonSerializerDeserializer.getNumberOfPointsOffset());
 
                         if (numOfPoints1 < 3) {
-                            throw new HyracksDataException("Polygon must have at least 3 points.");
+                            throw new HyracksDataException(AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                    + ": polygon must have at least 3 points.");
                         }
 
                         int counter = 0;
@@ -130,13 +122,16 @@
                                 y2 = ADoubleSerializerDeserializer.getDouble(bytes1,
                                         APolygonSerializerDeserializer.getCoordinateOffset(i, Coordinate.Y));
                             }
-                            if (pY > Math.min(y1, y2)) {
-                                if (pY <= Math.max(y1, y2)) {
-                                    if (pX <= Math.max(x1, x2)) {
-                                        if (y1 != y2) {
-                                            xInters = (pY - y1) * (x2 - x1) / (y2 - y1) + x1;
-                                            if (x1 == x2 || pX <= xInters) {
-                                                counter++;
+
+                            if (!pointOnLine(pX, pY, x1, y1, x2, y2)) {
+                                if (pY > Math.min(y1, y2)) {
+                                    if (pY <= Math.max(y1, y2)) {
+                                        if (pX <= Math.max(x1, x2)) {
+                                            if (y1 != y2) {
+                                                xInters = (pY - y1) * (x2 - x1) / (y2 - y1) + x1;
+                                                if (x1 == x2 || pX <= xInters) {
+                                                    counter++;
+                                                }
                                             }
                                         }
                                     }
@@ -165,7 +160,7 @@
                         double radius = ADoubleSerializerDeserializer.getDouble(bytes1,
                                 ACircleSerializerDeserializer.getRadiusOffset());
 
-                        if ((x - cX) * (x - cX) + (y - cY) * (y - cY) < (radius * radius)) {
+                        if ((x - cX) * (x - cX) + (y - cY) * (y - cY) <= (radius * radius)) {
                             return true;
                         }
                         return false;
@@ -182,9 +177,7 @@
                         double C2 = A2 * startX2 + B2 * startY2;
 
                         double det = (A1 * B2) - (A2 * B1);
-                        if (Math.abs(det) > SpatialUtils.doubleEpsilon()) { // det
-                                                                            // !=
-                                                                            // 0
+                        if (Math.abs(det) > SpatialUtils.doubleEpsilon()) { // det != 0
                             double x = (B2 * C1 - B1 * C2) / det;
                             double y = (A1 * C2 - A2 * C1) / det;
 
@@ -213,7 +206,8 @@
                                 APolygonSerializerDeserializer.getNumberOfPointsOffset());
 
                         if (numOfPoints1 < 3) {
-                            throw new HyracksDataException("Polygon must have at least 3 points.");
+                            throw new HyracksDataException(AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                    + ": polygon must have at least 3 points.");
                         }
                         for (int i = 0; i < numOfPoints1; i++) {
                             double startX2 = ADoubleSerializerDeserializer.getDouble(bytes1,
@@ -304,7 +298,7 @@
                         dx = (startX + t * (endX - startX)) - cX;
                         dy = (startY + t * (endY - startY)) - cY;
                         double rt = (dx * dx) + (dy * dy);
-                        if (rt < (radius * radius)) {
+                        if (rt <= (radius * radius)) {
                             return true;
                         }
                         return false;
@@ -353,8 +347,7 @@
 
                     private int triangulatePolygon(byte[] bytes, int numOfPoints, IntArray pointsOffsets,
                             DoubleArray trianglesX, DoubleArray trianglesY, int triangleId,
-                            int nonSimplePolygonDetection, int middleVertex) throws HyracksDataException { // Ear
-                                                                                                           // clipping
+                            int nonSimplePolygonDetection, int middleVertex) throws HyracksDataException { // Ear clipping
 
                         if (numOfPoints < 3) {
                             return -1;
@@ -364,7 +357,8 @@
                         int v = middleVertex;
                         while (!foundEar) {
                             if (0 >= (nonSimplePolygonDetection--)) {
-                                throw new NotImplementedException("Non-simple polygons are not supported.");
+                                throw new HyracksDataException(AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                        + ": non-simple polygons are not supported.");
                             }
                             int u = v;
                             if (numOfPoints <= u) {
@@ -421,8 +415,7 @@
 
                     private boolean triangleTriangleIntersection(DoubleArray trianglesX0, DoubleArray trianglesY0,
                             int triangleId0, DoubleArray trianglesX1, DoubleArray trianglesY1, int triangleId1)
-                            throws HyracksDataException { // separating axis
-                                                          // theorem
+                            throws HyracksDataException { // separating axis theorem
 
                         for (int side = 0; side < 3; side++) {
                             spatialUtils.findNormals(trianglesX0, trianglesY0, triangleId0, side);
@@ -442,10 +435,8 @@
                         return true;
                     }
 
-                    private final boolean pointInsideTriangle(double x1, double y1, double x2, double y2, double x3,
-                            double y3, double pX, double pY)
-
-                    {
+                    private boolean pointInsideTriangle(double x1, double y1, double x2, double y2, double x3,
+                            double y3, double pX, double pY) {
                         return pointsOnSameSide(pX, pY, x1, y1, x2, y2, x3, y3)
                                 && pointsOnSameSide(pX, pY, x2, y2, x1, y1, x3, y3)
                                 && pointsOnSameSide(pX, pY, x3, y3, x1, y1, x2, y2);
@@ -459,9 +450,7 @@
                     }
 
                     private boolean circleTriangleIntersection(byte[] bytes0, DoubleArray trianglesX,
-                            DoubleArray trianglesY, int triangleId) throws HyracksDataException { // separating
-                                                                                                  // axis
-                                                                                                  // theorem
+                            DoubleArray trianglesY, int triangleId) throws HyracksDataException { // separating axis theorem
 
                         double cX = ADoubleSerializerDeserializer.getDouble(bytes0,
                                 ACircleSerializerDeserializer.getCenterPointCoordinateOffset(Coordinate.X));
@@ -653,7 +642,8 @@
                                 APolygonSerializerDeserializer.getNumberOfPointsOffset());
 
                         if (numOfPoints1 < 3) {
-                            throw new AlgebricksException("Polygon must have at least 3 points.");
+                            throw new HyracksDataException(AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                    + ": polygon must have at least 3 points.");
                         }
 
                         getCounterClockWisePolygon(bytes1, pointsOffsets1, numOfPoints1);
@@ -704,7 +694,8 @@
                                 APolygonSerializerDeserializer.getNumberOfPointsOffset());
 
                         if (numOfPoints < 3) {
-                            throw new AlgebricksException("Polygon must have at least 3 points.");
+                            throw new HyracksDataException(AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                    + ": polygon must have at least 3 points.");
                         }
 
                         getCounterClockWisePolygon(bytes0, pointsOffsets0, numOfPoints);
@@ -744,20 +735,22 @@
 
                         try {
                             boolean res = false;
-                            ATypeTag tag0 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getBytes()[0]);
-                            ATypeTag tag1 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput1.getBytes()[0]);
+                            ATypeTag tag0 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput0.getByteArray()[0]);
+                            ATypeTag tag1 = EnumDeserializer.ATYPETAGDESERIALIZER
+                                    .deserialize(outInput1.getByteArray()[0]);
 
                             switch (tag0) {
                                 case POINT:
                                     switch (tag1) {
                                         case POINT:
-                                            if (ascDoubleComp.compare(outInput0.getBytes(),
+                                            if (ascDoubleComp.compare(outInput0.getByteArray(),
                                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X), 8,
-                                                    outInput1.getBytes(),
+                                                    outInput1.getByteArray(),
                                                     APointSerializerDeserializer.getCoordinateOffset(Coordinate.X), 8) == 0) {
-                                                if (ascDoubleComp.compare(outInput0.getBytes(),
+                                                if (ascDoubleComp.compare(outInput0.getByteArray(),
                                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y),
-                                                        8, outInput1.getBytes(),
+                                                        8, outInput1.getByteArray(),
                                                         APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y),
                                                         8) == 0) {
                                                     res = true;
@@ -765,97 +758,149 @@
                                             }
                                             break;
                                         case LINE:
-                                            res = pointOnLine(outInput1.getBytes(), outInput0.getBytes());
+                                            double pX = ADoubleSerializerDeserializer.getDouble(
+                                                    outInput0.getByteArray(),
+                                                    APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
+                                            double pY = ADoubleSerializerDeserializer.getDouble(
+                                                    outInput0.getByteArray(),
+                                                    APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
+
+                                            double startX = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getStartPointCoordinateOffset(Coordinate.X));
+                                            double startY = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getStartPointCoordinateOffset(Coordinate.Y));
+                                            double endX = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.X));
+                                            double endY = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.Y));
+
+                                            res = pointOnLine(pX, pY, startX, startY, endX, endY);
                                             break;
                                         case POLYGON:
-                                            res = pointInPolygon(outInput0.getBytes(), outInput1.getBytes());
+                                            res = pointInPolygon(outInput0.getByteArray(), outInput1.getByteArray());
                                             break;
                                         case CIRCLE:
-                                            res = pointInCircle(outInput0.getBytes(), outInput1.getBytes());
+                                            res = pointInCircle(outInput0.getByteArray(), outInput1.getByteArray());
                                             break;
                                         case RECTANGLE:
-                                            res = pointInRectangle(outInput0.getBytes(), outInput1.getBytes());
+                                            res = pointInRectangle(outInput0.getByteArray(), outInput1.getByteArray());
+                                            break;
+                                        case NULL:
+                                            res = false;
                                             break;
                                         default:
                                             throw new NotImplementedException(
-                                                    "spatial-intersection does not support the type: "
+                                                    AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                            + ": does not support the type: "
                                                             + tag1
-                                                            + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                                            + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                                     }
                                     break;
                                 case LINE:
                                     switch (tag1) {
                                         case POINT:
-                                            res = pointOnLine(outInput0.getBytes(), outInput1.getBytes());
+                                            double pX = ADoubleSerializerDeserializer.getDouble(
+                                                    outInput1.getByteArray(),
+                                                    APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
+                                            double pY = ADoubleSerializerDeserializer.getDouble(
+                                                    outInput1.getByteArray(),
+                                                    APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
+
+                                            double startX = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getStartPointCoordinateOffset(Coordinate.X));
+                                            double startY = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getStartPointCoordinateOffset(Coordinate.Y));
+                                            double endX = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.X));
+                                            double endY = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.Y));
+
+                                            res = pointOnLine(pX, pY, startX, startY, endX, endY);
                                             break;
                                         case LINE:
                                             double startX1 = ADoubleSerializerDeserializer.getDouble(outInput0
-                                                    .getBytes(), ALineSerializerDeserializer
+                                                    .getByteArray(), ALineSerializerDeserializer
                                                     .getStartPointCoordinateOffset(Coordinate.X));
                                             double startY1 = ADoubleSerializerDeserializer.getDouble(outInput0
-                                                    .getBytes(), ALineSerializerDeserializer
+                                                    .getByteArray(), ALineSerializerDeserializer
                                                     .getStartPointCoordinateOffset(Coordinate.Y));
-                                            double endX1 = ADoubleSerializerDeserializer.getDouble(
-                                                    outInput0.getBytes(), ALineSerializerDeserializer
-                                                            .getEndPointCoordinateOffset(Coordinate.X));
-                                            double endY1 = ADoubleSerializerDeserializer.getDouble(
-                                                    outInput0.getBytes(), ALineSerializerDeserializer
-                                                            .getEndPointCoordinateOffset(Coordinate.Y));
+                                            double endX1 = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.X));
+                                            double endY1 = ADoubleSerializerDeserializer.getDouble(outInput0
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.Y));
 
                                             double startX2 = ADoubleSerializerDeserializer.getDouble(outInput1
-                                                    .getBytes(), ALineSerializerDeserializer
+                                                    .getByteArray(), ALineSerializerDeserializer
                                                     .getStartPointCoordinateOffset(Coordinate.X));
                                             double startY2 = ADoubleSerializerDeserializer.getDouble(outInput1
-                                                    .getBytes(), ALineSerializerDeserializer
+                                                    .getByteArray(), ALineSerializerDeserializer
                                                     .getStartPointCoordinateOffset(Coordinate.Y));
-                                            double endX2 = ADoubleSerializerDeserializer.getDouble(
-                                                    outInput1.getBytes(), ALineSerializerDeserializer
-                                                            .getEndPointCoordinateOffset(Coordinate.X));
-                                            double endY2 = ADoubleSerializerDeserializer.getDouble(
-                                                    outInput1.getBytes(), ALineSerializerDeserializer
-                                                            .getEndPointCoordinateOffset(Coordinate.Y));
+                                            double endX2 = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.X));
+                                            double endY2 = ADoubleSerializerDeserializer.getDouble(outInput1
+                                                    .getByteArray(), ALineSerializerDeserializer
+                                                    .getEndPointCoordinateOffset(Coordinate.Y));
                                             res = lineLineIntersection(startX1, startY1, endX1, endY1, startX2,
                                                     startY2, endX2, endY2);
                                             break;
                                         case POLYGON:
-                                            res = linePolygonIntersection(outInput0.getBytes(), outInput1.getBytes());
+                                            res = linePolygonIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case CIRCLE:
-                                            res = lineCircleIntersection(outInput0.getBytes(), outInput1.getBytes());
+                                            res = lineCircleIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case RECTANGLE:
-                                            res = lineRectangleIntersection(outInput0.getBytes(), outInput1.getBytes());
+                                            res = lineRectangleIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
+                                            break;
+                                        case NULL:
+                                            res = false;
                                             break;
                                         default:
                                             throw new NotImplementedException(
-                                                    "spatial-intersection does not support the type: "
+                                                    AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                            + ": does not support the type: "
                                                             + tag1
-                                                            + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                                            + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                                     }
                                     break;
                                 case POLYGON:
                                     switch (tag1) {
                                         case POINT:
-                                            res = pointInPolygon(outInput1.getBytes(), outInput0.getBytes());
+                                            res = pointInPolygon(outInput1.getByteArray(), outInput0.getByteArray());
                                             break;
                                         case LINE:
-                                            res = linePolygonIntersection(outInput1.getBytes(), outInput0.getBytes());
+                                            res = linePolygonIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
                                             break;
                                         case POLYGON:
                                             int numOfPoints0 = AInt16SerializerDeserializer.getShort(
-                                                    outInput0.getBytes(),
+                                                    outInput0.getByteArray(),
                                                     APolygonSerializerDeserializer.getNumberOfPointsOffset());
                                             int numOfPoints1 = AInt16SerializerDeserializer.getShort(
-                                                    outInput1.getBytes(),
+                                                    outInput1.getByteArray(),
                                                     APolygonSerializerDeserializer.getNumberOfPointsOffset());
 
                                             if (numOfPoints0 < 3 || numOfPoints1 < 3) {
                                                 throw new AlgebricksException("Polygon must have at least 3 points.");
                                             }
 
-                                            getCounterClockWisePolygon(outInput0.getBytes(), pointsOffsets0,
+                                            getCounterClockWisePolygon(outInput0.getByteArray(), pointsOffsets0,
                                                     numOfPoints0);
-                                            getCounterClockWisePolygon(outInput1.getBytes(), pointsOffsets1,
+                                            getCounterClockWisePolygon(outInput1.getByteArray(), pointsOffsets1,
                                                     numOfPoints1);
                                             int nonSimplePolygonDetection0 = 2 * numOfPoints0;
                                             int nonSimplePolygonDetection1 = 2 * numOfPoints1;
@@ -867,9 +912,9 @@
                                             trianglesX1.reset();
                                             trianglesY1.reset();
                                             while (true) {
-                                                middleVertex1 = triangulatePolygon(outInput1.getBytes(), numOfPoints1,
-                                                        pointsOffsets1, trianglesX1, trianglesY1, numOfTriangles1,
-                                                        nonSimplePolygonDetection1, middleVertex1);
+                                                middleVertex1 = triangulatePolygon(outInput1.getByteArray(),
+                                                        numOfPoints1, pointsOffsets1, trianglesX1, trianglesY1,
+                                                        numOfTriangles1, nonSimplePolygonDetection1, middleVertex1);
 
                                                 if (middleVertex1 == -1) {
                                                     break;
@@ -883,9 +928,9 @@
                                             trianglesX0.reset();
                                             trianglesY0.reset();
                                             while (true) {
-                                                middleVertex0 = triangulatePolygon(outInput0.getBytes(), numOfPoints0,
-                                                        pointsOffsets0, trianglesX0, trianglesY0, numOfTriangles0,
-                                                        nonSimplePolygonDetection0, middleVertex0);
+                                                middleVertex0 = triangulatePolygon(outInput0.getByteArray(),
+                                                        numOfPoints0, pointsOffsets0, trianglesX0, trianglesY0,
+                                                        numOfTriangles0, nonSimplePolygonDetection0, middleVertex0);
 
                                                 if (middleVertex0 == -1) {
                                                     break;
@@ -916,63 +961,76 @@
                                             }
                                             break;
                                         case CIRCLE:
-                                            res = polygonCircleIntersection(outInput0.getBytes(), outInput1.getBytes());
+                                            res = polygonCircleIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case RECTANGLE:
-                                            res = rectanglePolygonIntersection(outInput1.getBytes(),
-                                                    outInput0.getBytes());
+                                            res = rectanglePolygonIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
+                                            break;
+                                        case NULL:
+                                            res = false;
                                             break;
                                         default:
                                             throw new NotImplementedException(
-                                                    "spatial-intersection does not support the type: "
+                                                    AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                            + ": does not support the type: "
                                                             + tag1
-                                                            + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                                            + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                                     }
                                     break;
                                 case CIRCLE:
                                     switch (tag1) {
                                         case POINT:
-                                            res = pointInCircle(outInput1.getBytes(), outInput0.getBytes());
+                                            res = pointInCircle(outInput1.getByteArray(), outInput0.getByteArray());
                                             break;
                                         case LINE:
-                                            res = lineCircleIntersection(outInput1.getBytes(), outInput0.getBytes());
+                                            res = lineCircleIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
                                             break;
                                         case POLYGON:
-                                            res = polygonCircleIntersection(outInput1.getBytes(), outInput0.getBytes());
+                                            res = polygonCircleIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
                                             break;
                                         case CIRCLE:
-                                            res = circleCircleIntersection(outInput0.getBytes(), outInput1.getBytes());
+                                            res = circleCircleIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case RECTANGLE:
-                                            res = rectangleCircleIntersection(outInput1.getBytes(),
-                                                    outInput0.getBytes());
+                                            res = rectangleCircleIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
+                                            break;
+                                        case NULL:
+                                            res = false;
                                             break;
                                         default:
                                             throw new NotImplementedException(
-                                                    "spatial-intersection does not support the type: "
+                                                    AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                            + ": does not support the type: "
                                                             + tag1
-                                                            + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                                            + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                                     }
                                     break;
                                 case RECTANGLE:
                                     switch (tag1) {
                                         case POINT:
-                                            res = pointInRectangle(outInput1.getBytes(), outInput0.getBytes());
+                                            res = pointInRectangle(outInput1.getByteArray(), outInput0.getByteArray());
                                             break;
                                         case LINE:
-                                            res = lineRectangleIntersection(outInput1.getBytes(), outInput0.getBytes());
+                                            res = lineRectangleIntersection(outInput1.getByteArray(),
+                                                    outInput0.getByteArray());
                                             break;
                                         case POLYGON:
-                                            res = rectanglePolygonIntersection(outInput0.getBytes(),
-                                                    outInput1.getBytes());
+                                            res = rectanglePolygonIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case CIRCLE:
-                                            res = rectangleCircleIntersection(outInput0.getBytes(),
-                                                    outInput1.getBytes());
+                                            res = rectangleCircleIntersection(outInput0.getByteArray(),
+                                                    outInput1.getByteArray());
                                             break;
                                         case RECTANGLE:
-                                            triangulateRectangle(outInput0.getBytes(), trianglesX0, trianglesY0);
-                                            triangulateRectangle(outInput1.getBytes(), trianglesX1, trianglesY1);
+                                            triangulateRectangle(outInput0.getByteArray(), trianglesX0, trianglesY0);
+                                            triangulateRectangle(outInput1.getByteArray(), trianglesX1, trianglesY1);
 
                                             boolean intersect = false;
                                             // 2 triangles in a rectangle
@@ -997,17 +1055,25 @@
                                                 }
                                             }
                                             break;
+                                        case NULL:
+                                            res = false;
+                                            break;
                                         default:
                                             throw new NotImplementedException(
-                                                    "spatial-intersection does not support the type: "
+                                                    AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                            + ": does not support the type: "
                                                             + tag1
-                                                            + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                                            + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                                     }
                                     break;
+                                case NULL:
+                                    res = false;
+                                    break;
                                 default:
                                     throw new NotImplementedException(
-                                            "spatial-intersection does not support the type: " + tag0
-                                                    + " It is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
+                                            AsterixBuiltinFunctions.SPATIAL_INTERSECT.getName()
+                                                    + ": does not support the type: " + tag1
+                                                    + "; it is only implemented for POINT, ALINE, POLYGON, and CIRCLE.");
                             }
 
                             ABoolean aResult = res ? (ABoolean.TRUE) : (ABoolean.FALSE);
@@ -1023,7 +1089,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_INTERSECT;
     }
-
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
index 2ef49f9..9358030 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
@@ -2,39 +2,43 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
 
 public class StartsWithDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "starts-with",
-            2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StartsWithDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
 
                 DataOutput dout = output.getDataOutput();
 
-                return new AbstractStringContainsEval(dout, args[0], args[1]) {
+                return new AbstractStringContainsEval(dout, args[0], args[1], AsterixBuiltinFunctions.STARTS_WITH) {
 
                     @Override
                     protected boolean findMatch(byte[] strBytes, byte[] patternBytes) {
-                        int utflen1 = UTF8StringPointable.getUTFLen(strBytes, 1);
-                        int utflen2 = UTF8StringPointable.getUTFLen(patternBytes, 1);
+                        int utflen1 = UTF8StringPointable.getUTFLength(strBytes, 1);
+                        int utflen2 = UTF8StringPointable.getUTFLength(patternBytes, 1);
 
                         int s1Start = 3;
                         int s2Start = 3;
@@ -60,7 +64,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STARTS_WITH;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java
new file mode 100644
index 0000000..bcd199c
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java
@@ -0,0 +1,120 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.common.AsterixListAccessor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringConcatDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
+    private static final byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringConcatDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private final AsterixListAccessor listAccessor = new AsterixListAccessor();
+                    private final DataOutput out = output.getDataOutput();
+                    private final ICopyEvaluatorFactory listEvalFactory = args[0];
+                    private final ArrayBackedValueStorage outInputList = new ArrayBackedValueStorage();
+                    private final ICopyEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            outInputList.reset();
+                            evalList.evaluate(tuple);
+                            byte[] listBytes = outInputList.getByteArray();
+                            if (listBytes[0] != SER_ORDEREDLIST_TYPE_TAG && listBytes[0] != SER_UNORDEREDLIST_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_CONCAT.getName()
+                                        + ": expects input type ORDEREDLIST/UNORDEREDLIST, but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[0]));
+                            }
+                            try {
+                                listAccessor.reset(listBytes, 0);
+                            } catch (AsterixException e) {
+                                throw new AlgebricksException(e);
+                            }
+                            try {
+                                // calculate length first
+                                int utf8Len = 0;
+                                for (int i = 0; i < listAccessor.size(); i++) {
+                                    int itemOffset = listAccessor.getItemOffset(i);
+                                    ATypeTag itemType = listAccessor.getItemType(itemOffset);
+                                    if (itemType != ATypeTag.STRING) {
+                                        if (itemType == ATypeTag.NULL) {
+                                            nullSerde.serialize(ANull.NULL, out);
+                                            return;
+                                        }
+                                        throw new AlgebricksException(AsterixBuiltinFunctions.STRING_CONCAT.getName()
+                                                + ": expects type STRING/NULL for the list item but got " + itemType);
+                                    }
+                                    utf8Len += UTF8StringPointable.getUTFLength(listBytes, itemOffset);
+                                }
+                                out.writeByte(ATypeTag.STRING.serialize());
+                                StringUtils.writeUTF8Len(utf8Len, out);
+                                for (int i = 0; i < listAccessor.size(); i++) {
+                                    int itemOffset = listAccessor.getItemOffset(i);
+                                    utf8Len = UTF8StringPointable.getUTFLength(listBytes, itemOffset);
+                                    for (int j = 0; j < utf8Len; j++) {
+                                        out.writeByte(listBytes[2 + itemOffset + j]);
+                                    }
+                                }
+                            } catch (AsterixException ex) {
+                                throw new AlgebricksException(ex);
+                            }
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1.getMessage());
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_CONCAT;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java
new file mode 100644
index 0000000..6d0eaad
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java
@@ -0,0 +1,77 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringEndWithDescrtiptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringEndWithDescrtiptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractBinaryStringBoolEval(dout, args[0], args[1], AsterixBuiltinFunctions.STRING_END_WITH) {
+
+                    @Override
+                    protected boolean compute(byte[] lBytes, int lLen, int lStart, byte[] rBytes, int rLen, int rStart,
+                            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) {
+                        int len1 = UTF8StringPointable.getUTFLength(lBytes, 1);
+                        int len2 = UTF8StringPointable.getUTFLength(rBytes, 1);
+                        if (len2 > len1)
+                            return false;
+
+                        int pos = 3;
+                        int delta = len1 - len2;
+                        while (pos < len2 + 3) {
+                            char c1 = UTF8StringPointable.charAt(lBytes, pos + delta);
+                            char c2 = UTF8StringPointable.charAt(rBytes, pos);
+                            if (c1 != c2)
+                                return false;
+
+                            pos += UTF8StringPointable.charSize(lBytes, pos);
+                        }
+
+                        return true;
+                    }
+
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_END_WITH;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java
new file mode 100644
index 0000000..e921e45
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java
@@ -0,0 +1,72 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringEqualDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringEqualDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractBinaryStringBoolEval(dout, args[0], args[1], AsterixBuiltinFunctions.STRING_EQUAL) {
+
+                    @Override
+                    protected boolean compute(byte[] lBytes, int lLen, int lStart, byte[] rBytes, int rLen, int rStart,
+                            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) {
+                        int len = UTF8StringPointable.getUTFLength(lBytes, 1);
+
+                        if (len != UTF8StringPointable.getUTFLength(rBytes, 1))
+                            return false;
+
+                        int pos = 3;
+                        while (pos < len + 3) {
+                            char c1 = UTF8StringPointable.charAt(lBytes, pos);
+                            char c2 = UTF8StringPointable.charAt(rBytes, pos);
+                            if (c1 != c2)
+                                return false;
+
+                            pos += UTF8StringPointable.charSize(lBytes, pos);
+                        }
+
+                        return true;
+                    }
+
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_EQUAL;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java
new file mode 100644
index 0000000..9c2f960
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java
@@ -0,0 +1,127 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringJoinDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringJoinDescriptor();
+        }
+    };
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
+    private final byte stringTypeTag = ATypeTag.STRING.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ICopyEvaluatorFactory listEvalFactory = args[0];
+                    private ICopyEvaluatorFactory sepEvalFactory = args[1];
+                    private ArrayBackedValueStorage outInputList = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage outInputSep = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalList = listEvalFactory.createEvaluator(outInputList);
+                    private ICopyEvaluator evalSep = sepEvalFactory.createEvaluator(outInputSep);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            outInputList.reset();
+                            evalList.evaluate(tuple);
+                            byte[] serOrderedList = outInputList.getByteArray();
+
+                            outInputSep.reset();
+                            evalSep.evaluate(tuple);
+                            byte[] serSep = outInputSep.getByteArray();
+                            if (serOrderedList[0] != SER_ORDEREDLIST_TYPE_TAG
+                                    && serOrderedList[1] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_JOIN.getName()
+                                        + ": expects input type ORDEREDLIST but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serOrderedList[0]));
+                            }
+
+                            if (serSep[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_JOIN.getName()
+                                        + ": expects STRING type for the seperator but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serSep[0]));
+                            }
+
+                            int size = AOrderedListSerializerDeserializer.getNumberOfItems(serOrderedList);
+                            try {
+                                // calculate length first
+                                int utf_8_len = 0;
+                                int sep_len = UTF8StringPointable.getUTFLength(serSep, 1);
+
+                                for (int i = 0; i < size; i++) {
+                                    int itemOffset = AOrderedListSerializerDeserializer
+                                            .getItemOffset(serOrderedList, i);
+
+                                    int currentSize = UTF8StringPointable.getUTFLength(serOrderedList, itemOffset);
+                                    if (i != size - 1 && currentSize != 0) {
+                                        utf_8_len += sep_len;
+                                    }
+                                    utf_8_len += currentSize;
+                                }
+                                out.writeByte(stringTypeTag);
+                                StringUtils.writeUTF8Len(utf_8_len, out);
+                                for (int i = 0; i < size; i++) {
+                                    int itemOffset = AOrderedListSerializerDeserializer
+                                            .getItemOffset(serOrderedList, i);
+                                    utf_8_len = UTF8StringPointable.getUTFLength(serOrderedList, itemOffset);
+                                    for (int j = 0; j < utf_8_len; j++) {
+                                        out.writeByte(serOrderedList[2 + itemOffset + j]);
+                                    }
+                                    if (i == size - 1 || utf_8_len == 0)
+                                        continue;
+                                    for (int j = 0; j < sep_len; j++) {
+                                        out.writeByte(serSep[3 + j]);
+                                    }
+                                }
+                            } catch (AsterixException ex) {
+                                throw new AlgebricksException(ex);
+                            }
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1.getMessage());
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_JOIN;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java
new file mode 100644
index 0000000..a81d53d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java
@@ -0,0 +1,89 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class StringLengthDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringLengthDescriptor();
+        }
+    };
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private AMutableInt32 result = new AMutableInt32(0);
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AInt32> intSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        try {
+                            outInput.reset();
+                            eval.evaluate(tuple);
+                            byte[] serString = outInput.getByteArray();
+                            if (serString[0] == SER_STRING_TYPE_TAG) {
+                                int len = UTF8StringPointable.getUTFLength(outInput.getByteArray(), 1);
+                                result.setValue(len);
+                                intSerde.serialize(result, out);
+                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                                nullSerde.serialize(ANull.NULL, out);
+                            else {
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_LENGTH.getName()
+                                        + ": expects input type STRING/NULL but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serString[0]));
+                            }
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_LENGTH;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java
new file mode 100644
index 0000000..5e188d3
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java
@@ -0,0 +1,101 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringLowerCaseDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringLowerCaseDescriptor();
+        }
+    };
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage outInput = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(outInput);
+
+                    private final byte stt = ATypeTag.STRING.serialize();
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        try {
+                            outInput.reset();
+                            eval.evaluate(tuple);
+                            byte[] serString = outInput.getByteArray();
+
+                            if (serString[0] == SER_STRING_TYPE_TAG) {
+                                byte[] bytes = outInput.getByteArray();
+                                int len = UTF8StringPointable.getUTFLength(bytes, 1);
+
+                                out.writeByte(stt);
+                                StringUtils.writeUTF8Len(len, out);
+
+                                int pos = 3;
+                                while (pos < len + 3) {
+                                    char c1 = UTF8StringPointable.charAt(bytes, pos);
+                                    c1 = Character.toLowerCase(c1);
+                                    pos += UTF8StringPointable.charSize(bytes, pos);
+                                    StringUtils.writeCharAsModifiedUTF8(c1, out);
+                                }
+                            } else if (serString[0] == SER_NULL_TYPE_TAG)
+                                nullSerde.serialize(ANull.NULL, out);
+                            else
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_LOWERCASE.getName()
+                                        + ": expects input type STRING/NULL but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serString[0]));
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_LOWERCASE;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java
new file mode 100644
index 0000000..03a3545
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java
@@ -0,0 +1,111 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringMatchesDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringMatchesDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractBinaryStringBoolEval(dout, args[0], args[1], AsterixBuiltinFunctions.STRING_MATCHES) {
+
+                    private Pattern pattern = null;
+                    private Matcher matcher = null;
+                    private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
+                    private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
+                    private UTF8CharSequence carSeq = new UTF8CharSequence();
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+                    @Override
+                    protected boolean compute(byte[] lBytes, int lLen, int lStart, byte[] rBytes, int rLen, int rStart,
+                            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) throws AlgebricksException {
+                        try {
+                            boolean newPattern = false;
+                            if (pattern == null) {
+                                newPattern = true;
+                            } else {
+                                int c = strComp.compare(rBytes, rStart, rLen, lastPattern.getByteArray(), 0,
+                                        lastPattern.size());
+                                if (c != 0) {
+                                    newPattern = true;
+                                }
+                            }
+                            if (newPattern) {
+                                lastPattern.reset();
+                                lastPattern.write(rBytes, rStart, rLen);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastPattern.getByteArray()));
+                                AString strPattern = (AString) stringSerde.deserialize(di);
+                                // pattern = Pattern.compile(toRegex(strPattern));
+                                pattern = Pattern.compile(strPattern.getStringValue());
+                            }
+
+                            carSeq.reset(array0, 1);
+                            if (newPattern) {
+                                matcher = pattern.matcher(carSeq);
+                            } else {
+                                matcher.reset(carSeq);
+                            }
+                            return matcher.find();
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_MATCHES;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java
new file mode 100644
index 0000000..93dc342
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java
@@ -0,0 +1,139 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringMatchesWithFlagDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringMatchesWithFlagDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractTripleStringBoolEval(dout, args[0], args[1], args[2],
+                        AsterixBuiltinFunctions.STRING_MATCHES_WITH_FLAG) {
+
+                    private Pattern pattern = null;
+                    private Matcher matcher = null;
+                    private String strPattern = "";
+                    private int flags = 0;
+                    private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
+                    private ByteArrayAccessibleOutputStream lastFlags = new ByteArrayAccessibleOutputStream();
+                    private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
+                    private UTF8CharSequence carSeq = new UTF8CharSequence();
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+                    @Override
+                    protected boolean compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2,
+                            int s2, ArrayBackedValueStorage array0, ArrayBackedValueStorage array1)
+                            throws AlgebricksException {
+                        try {
+                            boolean newPattern = false;
+                            boolean newFlags = false;
+
+                            AString astrPattern;
+                            AString astrFlags;
+
+                            if (pattern == null) {
+                                newPattern = true;
+                                newFlags = true;
+                            } else {
+                                int c = strComp.compare(b1, s1, l1, lastPattern.getByteArray(), 0, lastPattern.size());
+                                if (c != 0) {
+                                    newPattern = true;
+                                }
+
+                                c = strComp.compare(b2, s2, l2, lastFlags.getByteArray(), 0, lastFlags.size());
+                                if (c != 0) {
+                                    newFlags = true;
+                                }
+                            }
+                            if (newPattern) {
+                                lastPattern.reset();
+                                lastPattern.write(b1, s1, l1);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastPattern.getByteArray()));
+                                astrPattern = (AString) stringSerde.deserialize(di);
+                                // strPattern = toRegex(astrPattern);
+                                strPattern = astrPattern.getStringValue();
+                            }
+                            if (newFlags) {
+                                lastFlags.reset();
+                                lastFlags.write(b2, s2, l2);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastFlags.getByteArray()));
+                                astrFlags = (AString) stringSerde.deserialize(di);
+                                flags = toFlag(astrFlags);
+                            }
+
+                            pattern = Pattern.compile(strPattern, flags);
+                            carSeq.reset(array0, 1);
+                            if (newPattern) {
+                                matcher = pattern.matcher(carSeq);
+                            } else {
+                                matcher.reset(carSeq);
+                            }
+                            return matcher.find();
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_MATCHES_WITH_FLAG;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java
new file mode 100644
index 0000000..230eb34
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java
@@ -0,0 +1,140 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringReplaceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringReplaceDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractTripleStringStringEval(dout, args[0], args[1], args[2],
+                        AsterixBuiltinFunctions.STRING_REPLACE) {
+
+                    private Pattern pattern = null;
+                    private Matcher matcher = null;
+                    private String replace;
+                    private String strPattern = "";
+                    private StringBuffer resultBuf = new StringBuffer();
+                    private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
+                    private ByteArrayAccessibleOutputStream lastReplace = new ByteArrayAccessibleOutputStream();
+                    private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
+                    private UTF8CharSequence carSeq = new UTF8CharSequence();
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+                    @Override
+                    protected String compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2,
+                            int s2, ArrayBackedValueStorage array0, ArrayBackedValueStorage array1)
+                            throws AlgebricksException {
+                        try {
+                            boolean newPattern = false;
+                            boolean newReplace = false;
+
+                            AString astrPattern;
+                            AString astrReplace;
+
+                            if (pattern == null) {
+                                newPattern = true;
+                                newReplace = true;
+                            } else {
+                                int c = strComp.compare(b1, s1, l1, lastPattern.getByteArray(), 0, lastPattern.size());
+                                if (c != 0) {
+                                    newPattern = true;
+                                }
+
+                                c = strComp.compare(b2, s2, l2, lastReplace.getByteArray(), 0, lastReplace.size());
+                                if (c != 0) {
+                                    newReplace = true;
+                                }
+                            }
+                            if (newPattern) {
+                                lastPattern.reset();
+                                lastPattern.write(b1, s1, l1);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastPattern.getByteArray()));
+                                astrPattern = (AString) stringSerde.deserialize(di);
+                                // strPattern = toRegex(astrPattern);
+                                strPattern = astrPattern.getStringValue();
+                            }
+                            if (newReplace) {
+                                lastReplace.reset();
+                                lastReplace.write(b2, s2, l2);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastReplace.getByteArray()));
+                                astrReplace = (AString) stringSerde.deserialize(di);
+                                replace = astrReplace.getStringValue();
+                            }
+                            if (newPattern)
+                                pattern = Pattern.compile(strPattern);
+                            carSeq.reset(array0, 1);
+                            if (newPattern) {
+                                matcher = pattern.matcher(carSeq);
+                            } else {
+                                matcher.reset(carSeq);
+                            }
+                            while (matcher.find()) {
+                                matcher.appendReplacement(resultBuf, replace);
+                            }
+                            matcher.appendTail(resultBuf);
+                            return resultBuf.toString();
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_REPLACE;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java
new file mode 100644
index 0000000..4f18863
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java
@@ -0,0 +1,163 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ByteArrayAccessibleOutputStream;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringReplaceWithFlagsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringReplaceWithFlagsDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractQuadStringStringEval(dout, args[0], args[1], args[2], args[3],
+                        AsterixBuiltinFunctions.STRING_REPLACE_WITH_FLAG) {
+
+                    private Pattern pattern = null;
+                    private Matcher matcher = null;
+                    private String strPattern = "";
+                    private String replace = "";
+                    private int flags = 0;
+                    private StringBuffer resultBuf = new StringBuffer();
+                    private ByteArrayAccessibleOutputStream lastPattern = new ByteArrayAccessibleOutputStream();
+                    private ByteArrayAccessibleOutputStream lastFlags = new ByteArrayAccessibleOutputStream();
+                    private ByteArrayAccessibleOutputStream lastReplace = new ByteArrayAccessibleOutputStream();
+                    private IBinaryComparator strComp = AqlBinaryComparatorFactoryProvider.INSTANCE
+                            .getBinaryComparatorFactory(BuiltinType.ASTRING, true).createBinaryComparator();
+                    private UTF8CharSequence carSeq = new UTF8CharSequence();
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ASTRING);
+
+                    @Override
+                    protected String compute(byte[] b0, int l0, int s0, byte[] b1, int l1, int s1, byte[] b2, int l2,
+                            int s2, byte[] b3, int l3, int s3, ArrayBackedValueStorage array0,
+                            ArrayBackedValueStorage array1) throws AlgebricksException {
+                        try {
+                            boolean newPattern = false;
+                            boolean newFlags = false;
+                            boolean newReplace = false;
+
+                            AString astrPattern;
+                            AString astrFlags;
+
+                            if (pattern == null) {
+                                newPattern = true;
+                                newFlags = true;
+                            } else {
+                                int c = strComp.compare(b1, s1, l1, lastPattern.getByteArray(), 0, lastPattern.size());
+                                if (c != 0) {
+                                    newPattern = true;
+                                }
+
+                                c = strComp.compare(b3, s3, l3, lastFlags.getByteArray(), 0, lastFlags.size());
+                                if (c != 0) {
+                                    newFlags = true;
+                                }
+                            }
+
+                            if (replace == null) {
+                                newReplace = true;
+                            } else {
+                                int c = strComp.compare(b2, s2, l2, lastReplace.getByteArray(), 0, lastReplace.size());
+                                if (c != 0) {
+                                    newReplace = true;
+                                }
+                            }
+
+                            if (newPattern) {
+                                lastPattern.reset();
+                                lastPattern.write(b1, s1, l1);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastPattern.getByteArray()));
+                                astrPattern = (AString) stringSerde.deserialize(di);
+                                // strPattern = toRegex(astrPattern);
+                                strPattern = astrPattern.getStringValue();
+                            }
+                            if (newReplace) {
+                                lastReplace.reset();
+                                lastReplace.write(b2, s2, l2);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastReplace.getByteArray()));
+                                replace = ((AString) stringSerde.deserialize(di)).getStringValue();
+                            }
+                            if (newFlags) {
+                                lastFlags.reset();
+                                lastFlags.write(b3, s3, l3);
+                                // ! object creation !
+                                DataInputStream di = new DataInputStream(new ByteArrayInputStream(
+                                        lastFlags.getByteArray()));
+                                astrFlags = (AString) stringSerde.deserialize(di);
+                                flags = toFlag(astrFlags);
+                            }
+
+                            if (newPattern || newFlags)
+                                pattern = Pattern.compile(strPattern, flags);
+                            resultBuf.setLength(0);
+                            carSeq.reset(array0, 1);
+                            if (newPattern) {
+                                matcher = pattern.matcher(carSeq);
+                            } else {
+                                matcher.reset(carSeq);
+                            }
+                            while (matcher.find()) {
+                                matcher.appendReplacement(resultBuf, replace);
+                            }
+                            matcher.appendTail(resultBuf);
+                            return resultBuf.toString();
+                        } catch (HyracksDataException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_REPLACE_WITH_FLAG;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java
new file mode 100644
index 0000000..601c3d0
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java
@@ -0,0 +1,72 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringStartWithDescrtiptor extends AbstractScalarFunctionDynamicDescriptor {
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringStartWithDescrtiptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+
+                DataOutput dout = output.getDataOutput();
+
+                return new AbstractBinaryStringBoolEval(dout, args[0], args[1],
+                        AsterixBuiltinFunctions.STRING_START_WITH) {
+
+                    @Override
+                    protected boolean compute(byte[] lBytes, int lLen, int lStart, byte[] rBytes, int rLen, int rStart,
+                            ArrayBackedValueStorage array0, ArrayBackedValueStorage array1) {
+                        int patternLength = UTF8StringPointable.getUTFLength(rBytes, 1);
+                        if (patternLength > UTF8StringPointable.getUTFLength(lBytes, 1))
+                            return false;
+
+                        int pos = 3;
+                        while (pos < patternLength + 3) {
+                            char c1 = UTF8StringPointable.charAt(lBytes, pos);
+                            char c2 = UTF8StringPointable.charAt(rBytes, pos);
+                            if (c1 != c2)
+                                return false;
+
+                            pos += UTF8StringPointable.charSize(lBytes, pos);
+                        }
+
+                        return true;
+                    }
+
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_START_WITH;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java
new file mode 100644
index 0000000..e001d9e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java
@@ -0,0 +1,140 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * @author Xiaoyu Ma
+ */
+public class StringToCodePointDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY1 = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringToCodePointDescriptor();
+        }
+    };
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new StringToCodePointDescriptor();
+        }
+    };
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    protected final DataOutput out = output.getDataOutput();;
+                    protected final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    protected final ICopyEvaluator stringEval = args[0].createEvaluator(argOut);
+                    protected final AOrderedListType intListType = new AOrderedListType(BuiltinType.AINT32, null);
+
+                    private OrderedListBuilder listBuilder = new OrderedListBuilder();
+                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+
+                    @SuppressWarnings("unchecked")
+                    private final ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.AINT32);
+                    private final AMutableInt32 aInt32 = new AMutableInt32(0);
+
+                    int UTF8ToCodePoint(byte[] b, int s) {
+                        if (b[s] >> 7 == 0) {
+                            // 1 byte
+                            return b[s];
+                        } else if ((b[s] & 0xe0) == 0xc0) { /*0xe0 = 0b1110000*/
+                            // 2 bytes
+                            return ((int) (b[s] & 0x1f)) << 6 | /*0x3f = 0b00111111*/
+                            ((int) (b[s + 1] & 0x3f));
+                        } else if ((b[s] & 0xf0) == 0xe0) {
+                            // 3bytes
+                            return ((int) (b[s] & 0xf)) << 12 | ((int) (b[s + 1] & 0x3f)) << 6
+                                    | ((int) (b[s + 2] & 0x3f));
+                        } else if ((b[s] & 0xf8) == 0xf0) {
+                            // 4bytes
+                            return ((int) (b[s] & 0x7)) << 18 | ((int) (b[s + 1] & 0x3f)) << 12
+                                    | ((int) (b[s + 2] & 0x3f)) << 6 | ((int) (b[s + 3] & 0x3f));
+                        } else if ((b[s] & 0xfc) == 0xf8) {
+                            // 5bytes
+                            return ((int) (b[s] & 0x3)) << 24 | ((int) (b[s + 1] & 0x3f)) << 18
+                                    | ((int) (b[s + 2] & 0x3f)) << 12 | ((int) (b[s + 3] & 0x3f)) << 6
+                                    | ((int) (b[s + 4] & 0x3f));
+                        } else if ((b[s] & 0xfe) == 0xfc) {
+                            // 6bytes
+                            return ((int) (b[s] & 0x1)) << 30 | ((int) (b[s + 1] & 0x3f)) << 24
+                                    | ((int) (b[s + 2] & 0x3f)) << 18 | ((int) (b[s + 3] & 0x3f)) << 12
+                                    | ((int) (b[s + 4] & 0x3f)) << 6 | ((int) (b[s + 5] & 0x3f));
+                        }
+                        return 0;
+                    }
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            argOut.reset();
+                            stringEval.evaluate(tuple);
+                            byte[] serString = argOut.getByteArray();
+
+                            if (serString[0] == SER_STRING_TYPE_TAG) {
+                                byte[] bytes = argOut.getByteArray();
+                                int len = UTF8StringPointable.getUTFLength(bytes, 1);
+
+                                int pos = 3;
+                                listBuilder.reset(intListType);
+                                while (pos < len + 3) {
+                                    int codePoint = UTF8ToCodePoint(bytes, pos);
+                                    pos += UTF8StringPointable.charSize(bytes, pos);
+
+                                    inputVal.reset();
+                                    aInt32.setValue(codePoint);
+                                    int32Serde.serialize(aInt32, inputVal.getDataOutput());
+                                    listBuilder.addItem(inputVal);
+
+                                }
+                                listBuilder.write(out, true);
+                            } else
+                                throw new AlgebricksException(AsterixBuiltinFunctions.STRING_TO_CODEPOINT.getName()
+                                        + ": expects input type STRING but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serString[0]));
+                        } catch (IOException e1) {
+                            throw new AlgebricksException(e1.getMessage());
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.STRING_TO_CODEPOINT;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java
new file mode 100644
index 0000000..5a84401
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java
@@ -0,0 +1,106 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+
+public class Substring2Descriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    // allowed input types
+    private static final byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+    private static final byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new Substring2Descriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalString = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator evalStart = args[1].createEvaluator(argOut);
+                    private final byte stt = ATypeTag.STRING.serialize();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        evalStart.evaluate(tuple);
+                        if (argOut.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING2.getName()
+                                    + ": expects type INT32 for the second argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                        }
+                        int start = IntegerSerializerDeserializer.getInt(argOut.getByteArray(), 1) - 1;
+                        argOut.reset();
+                        evalString.evaluate(tuple);
+
+                        byte[] bytes = argOut.getByteArray();
+                        if (bytes[0] != SER_STRING_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING2.getName()
+                                    + ": expects type STRING for the first argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                        }
+                        int utflen = UTF8StringPointable.getUTFLength(bytes, 1);
+                        int sStart = 3;
+                        int c = 0;
+                        int idxPos1 = 0;
+                        // skip to start
+                        while (idxPos1 < start && c < utflen) {
+                            c += UTF8StringPointable.charSize(bytes, sStart + c);
+                            ++idxPos1;
+                        }
+                        int startSubstr = c;
+
+                        while (c < utflen) {
+                            c += UTF8StringPointable.charSize(bytes, sStart + c);
+                        }
+
+                        int substrByteLen = c - startSubstr;
+                        try {
+                            out.writeByte(stt);
+                            out.writeByte((byte) ((substrByteLen >>> 8) & 0xFF));
+                            out.writeByte((byte) ((substrByteLen >>> 0) & 0xFF));
+                            out.write(bytes, sStart + startSubstr, substrByteLen);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.SUBSTRING2;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java
new file mode 100644
index 0000000..7584e4d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java
@@ -0,0 +1,114 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SubstringAfterDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    // allowed input types
+    private static final byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubstringAfterDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalString = args[0].createEvaluator(array0);
+                    private ICopyEvaluator evalPattern = args[1].createEvaluator(array1);
+                    private final byte stt = ATypeTag.STRING.serialize();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        array0.reset();
+                        evalString.evaluate(tuple);
+                        byte[] src = array0.getByteArray();
+
+                        array1.reset();
+                        evalPattern.evaluate(tuple);
+                        byte[] pattern = array1.getByteArray();
+
+                        if ((src[0] != SER_STRING_TYPE_TAG && src[0] != SER_NULL_TYPE_TAG)
+                                || (pattern[0] != SER_STRING_TYPE_TAG && pattern[0] != SER_NULL_TYPE_TAG)) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING_AFTER.getName()
+                                    + ": expects input type (STRING/NULL, STRING/NULL) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(src[0]) + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(pattern[0]) + ").");
+                        }
+
+                        int srcLen = UTF8StringPointable.getUTFLength(src, 1);
+                        int patternLen = UTF8StringPointable.getUTFLength(pattern, 1);
+                        int posSrc = 3;
+                        int posPattern = 3;
+
+                        int offset = 0;
+                        // boolean found = false;
+                        while (posSrc - 3 < srcLen - patternLen) {
+                            offset = 0;
+                            while (posPattern + offset - 3 < patternLen && posSrc + offset - 3 < srcLen) {
+                                char c1 = UTF8StringPointable.charAt(src, posSrc + offset);
+                                char c2 = UTF8StringPointable.charAt(pattern, posPattern + offset);
+                                if (c1 != c2)
+                                    break;
+                                offset++;
+                            }
+                            if (offset == patternLen) {
+                                // found = true;
+                                break;
+                            }
+                            posSrc += UTF8StringPointable.charSize(src, posSrc);
+                        }
+
+                        posSrc += patternLen;
+                        int substrByteLen = srcLen - posSrc + 3;
+                        try {
+                            out.writeByte(stt);
+                            out.writeByte((byte) ((substrByteLen >>> 8) & 0xFF));
+                            out.writeByte((byte) ((substrByteLen >>> 0) & 0xFF));
+                            out.write(src, posSrc, substrByteLen);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.SUBSTRING_AFTER;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
new file mode 100644
index 0000000..77911af
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
@@ -0,0 +1,113 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SubstringBeforeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    // allowed input types
+    private static final byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubstringBeforeDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage array0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage array1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator evalString = args[0].createEvaluator(array0);
+                    private ICopyEvaluator evalPattern = args[1].createEvaluator(array1);
+                    private final byte stt = ATypeTag.STRING.serialize();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        array0.reset();
+                        evalString.evaluate(tuple);
+                        byte[] src = array0.getByteArray();
+
+                        array1.reset();
+                        evalPattern.evaluate(tuple);
+                        byte[] pattern = array1.getByteArray();
+
+                        if ((src[0] != SER_STRING_TYPE_TAG && src[0] != SER_NULL_TYPE_TAG)
+                                || (pattern[0] != SER_STRING_TYPE_TAG && pattern[0] != SER_NULL_TYPE_TAG)) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING_BEFORE.getName()
+                                    + ": expects input type (STRING/NULL, STRING/NULL) but got ("
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(src[0]) + ", "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(pattern[0]) + ").");
+                        }
+
+                        int srcLen = UTF8StringPointable.getUTFLength(src, 1);
+                        int patternLen = UTF8StringPointable.getUTFLength(pattern, 1);
+                        int posSrc = 3;
+                        int posPattern = 3;
+
+                        int offset = 0;
+                        while (posSrc - 3 < srcLen - patternLen) {
+                            // offset = 0;                        
+                            while (posPattern + offset - 3 < patternLen && posSrc + offset - 3 < srcLen) {
+                                char c1 = UTF8StringPointable.charAt(src, posSrc + offset);
+                                char c2 = UTF8StringPointable.charAt(pattern, posPattern + offset);
+                                if (c1 != c2)
+                                    break;
+                                offset++;
+                            }
+                            if (offset == patternLen) {
+                                // found = true;
+                                break;
+                            }
+                            posSrc += UTF8StringPointable.charSize(src, posSrc);
+                        }
+                        int startSubstr = 3;
+
+                        int substrByteLen = posSrc - startSubstr;
+                        try {
+                            out.writeByte(stt);
+                            out.writeByte((byte) ((substrByteLen >>> 8) & 0xFF));
+                            out.writeByte((byte) ((substrByteLen >>> 0) & 0xFF));
+                            out.write(src, startSubstr, substrByteLen);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.SUBSTRING_BEFORE;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
index 503df91..77741fb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
@@ -3,54 +3,82 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class SubstringDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "substring", 3,
-            true);
+
+    // allowed input types
+    private static final byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+    private static final byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubstringDescriptor();
+        }
+    };
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
-                return new IEvaluator() {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
 
                     private DataOutput out = output.getDataOutput();
                     private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
-                    private IEvaluator evalString = args[0].createEvaluator(argOut);
-                    private IEvaluator evalStart = args[1].createEvaluator(argOut);
-                    private IEvaluator evalLen = args[2].createEvaluator(argOut);
+                    private ICopyEvaluator evalString = args[0].createEvaluator(argOut);
+                    private ICopyEvaluator evalStart = args[1].createEvaluator(argOut);
+                    private ICopyEvaluator evalLen = args[2].createEvaluator(argOut);
                     private final byte stt = ATypeTag.STRING.serialize();
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
                         argOut.reset();
                         evalStart.evaluate(tuple);
-                        int start = IntegerSerializerDeserializer.getInt(argOut.getBytes(), 1) - 1;
+                        if (argOut.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING.getName()
+                                    + ": expects type INT32 for the second argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                        }
+                        int start = IntegerSerializerDeserializer.getInt(argOut.getByteArray(), 1) - 1;
                         argOut.reset();
                         evalLen.evaluate(tuple);
-                        int len = IntegerSerializerDeserializer.getInt(argOut.getBytes(), 1);
+                        if (argOut.getByteArray()[0] != SER_INT32_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING.getName()
+                                    + ": expects type INT32 for the third argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                        }
+                        int len = IntegerSerializerDeserializer.getInt(argOut.getByteArray(), 1);
+
                         argOut.reset();
                         evalString.evaluate(tuple);
 
-                        byte[] bytes = argOut.getBytes();
-                        int utflen = UTF8StringPointable.getUTFLen(bytes, 1);
+                        byte[] bytes = argOut.getByteArray();
+
+                        if (bytes[0] != SER_STRING_TYPE_TAG) {
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING.getName()
+                                    + ": expects type STRING for the first argument but got "
+                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
+                        }
+                        int utflen = UTF8StringPointable.getUTFLength(bytes, 1);
                         int sStart = 3;
                         int c = 0;
                         int idxPos1 = 0;
@@ -67,8 +95,9 @@
                         }
 
                         if (idxPos2 < len) {
-                            throw new AlgebricksException("substring: start=" + start + "\tlen=" + len
-                                    + "\tgoing past the input length=" + (idxPos1 + idxPos2) + ".");
+                            throw new AlgebricksException(AsterixBuiltinFunctions.SUBSTRING.getName() + ": start="
+                                    + start + "\tlen=" + len + "\tgoing past the input length=" + (idxPos1 + idxPos2)
+                                    + ".");
                         }
 
                         int substrByteLen = c - startSubstr;
@@ -89,7 +118,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSTRING;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
index ee5b0d4..ac62f96 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
@@ -2,41 +2,46 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class SwitchCaseDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "switch-case",
-            FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SwitchCaseDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SWITCH_CASE;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
 
-        return new IEvaluatorFactory() {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
                 final ArrayBackedValueStorage condOut = new ArrayBackedValueStorage();
                 final ArrayBackedValueStorage caseOut = new ArrayBackedValueStorage();
                 final ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
 
-                final IEvaluator[] evals = new IEvaluator[args.length];
+                final ICopyEvaluator[] evals = new ICopyEvaluator[args.length];
                 // condition
                 evals[0] = args[0].createEvaluator(condOut);
                 // case value
@@ -50,7 +55,7 @@
                 // default expression
                 evals[evals.length - 1] = args[evals.length - 1].createEvaluator(argOut);
 
-                return new IEvaluator() {
+                return new ICopyEvaluator() {
 
                     @Override
                     public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
@@ -64,7 +69,7 @@
                                 if (equals(condOut, caseOut)) {
                                     argOut.reset();
                                     evals[i + 1].evaluate(tuple);
-                                    output.getDataOutput().write(argOut.getBytes(), argOut.getStartIndex(),
+                                    output.getDataOutput().write(argOut.getByteArray(), argOut.getStartOffset(),
                                             argOut.getLength());
                                     return;
                                 }
@@ -72,7 +77,8 @@
                             // the default case
                             argOut.reset();
                             evals[n - 1].evaluate(tuple);
-                            output.getDataOutput().write(argOut.getBytes(), argOut.getStartIndex(), argOut.getLength());
+                            output.getDataOutput().write(argOut.getByteArray(), argOut.getStartOffset(),
+                                    argOut.getLength());
                         } catch (HyracksDataException hde) {
                             throw new AlgebricksException(hde);
                         } catch (IOException ioe) {
@@ -81,11 +87,11 @@
                     }
 
                     private boolean equals(ArrayBackedValueStorage out1, ArrayBackedValueStorage out2) {
-                        if (out1.getStartIndex() != out2.getStartIndex() || out1.getLength() != out2.getLength())
+                        if (out1.getStartOffset() != out2.getStartOffset() || out1.getLength() != out2.getLength())
                             return false;
-                        byte[] data1 = out1.getBytes();
-                        byte[] data2 = out2.getBytes();
-                        for (int i = out1.getStartIndex(); i < out1.getLength(); i++) {
+                        byte[] data1 = out1.getByteArray();
+                        byte[] data2 = out2.getByteArray();
+                        for (int i = out1.getStartOffset(); i < out1.getLength(); i++) {
                             if (data1[i] != data2[i]) {
                                 return false;
                             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
index ed26a89..3e8a606 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
@@ -4,23 +4,28 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.UnorderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class UnorderedListConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "unordered-list-constructor", FunctionIdentifier.VARARGS, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new UnorderedListConstructorDescriptor();
+        }
+    };
 
     private AUnorderedListType ultype;
 
@@ -30,24 +35,24 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new UnorderedListConstructorEvaluatorFactory(args, ultype);
     }
 
-    private static class UnorderedListConstructorEvaluatorFactory implements IEvaluatorFactory {
+    private static class UnorderedListConstructorEvaluatorFactory implements ICopyEvaluatorFactory {
 
         private static final long serialVersionUID = 1L;
-        private IEvaluatorFactory[] args;
+        private ICopyEvaluatorFactory[] args;
 
         private boolean selfDescList = false;
         private boolean homoList = false;
         private AUnorderedListType unorderedlistType;
 
-        public UnorderedListConstructorEvaluatorFactory(IEvaluatorFactory[] args, AUnorderedListType type) {
+        public UnorderedListConstructorEvaluatorFactory(ICopyEvaluatorFactory[] args, AUnorderedListType type) {
             this.args = args;
             this.unorderedlistType = type;
             if (type == null || type.getItemType() == null || type.getItemType().getTypeTag() == ATypeTag.ANY)
@@ -57,15 +62,15 @@
         }
 
         @Override
-        public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+        public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
             final DataOutput out = output.getDataOutput();
             final ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-            final IEvaluator[] argEvals = new IEvaluator[args.length];
+            final ICopyEvaluator[] argEvals = new ICopyEvaluator[args.length];
             for (int i = 0; i < args.length; i++) {
                 argEvals[i] = args[i].createEvaluator(inputVal);
             }
 
-            return new IEvaluator() {
+            return new ICopyEvaluator() {
 
                 private UnorderedListBuilder builder = new UnorderedListBuilder();
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
index 6b8979e..80cb6db 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
@@ -1,40 +1,43 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.common.WordTokensEvaluator;
-import edu.uci.ics.fuzzyjoin.tokenizer.DelimitedUTF8StringBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.IBinaryTokenizer;
-import edu.uci.ics.fuzzyjoin.tokenizer.ITokenFactory;
-import edu.uci.ics.fuzzyjoin.tokenizer.UTF8WordTokenFactory;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizer;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.ITokenFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.UTF8WordTokenFactory;
 
 public class WordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "word-tokens",
-            1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new WordTokensDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.WORD_TOKENS;
     }
 
     @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) throws AlgebricksException {
-        return new IEvaluatorFactory() {
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                ITokenFactory tokenFactory = new UTF8WordTokenFactory(ATypeTag.STRING.serialize(),
-                        ATypeTag.INT32.serialize());
+            public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
+                ITokenFactory tokenFactory = new UTF8WordTokenFactory();
                 IBinaryTokenizer tokenizer = new DelimitedUTF8StringBinaryTokenizer(true, true, tokenFactory);
                 return new WordTokensEvaluator(args, output, tokenizer, BuiltinType.ASTRING);
             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java
deleted file mode 100644
index 9c8b857..0000000
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java
+++ /dev/null
@@ -1,97 +0,0 @@
-package edu.uci.ics.asterix.runtime.evaluators.functions;
-
-import java.io.DataOutput;
-
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
-
-public class YearDescriptor extends AbstractScalarFunctionDynamicDescriptor {
-
-    private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "year", 1, true);
-    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
-    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
-
-    @Override
-    public FunctionIdentifier getIdentifier() {
-        return FID;
-    }
-
-    /**
-     * Returns the 4-digit representation of a year from a string, as an int32.
-     * e.g. year('2010-10-24') = 2010
-     */
-
-    @Override
-    public IEvaluatorFactory createEvaluatorFactory(final IEvaluatorFactory[] args) {
-
-        return new IEvaluatorFactory() {
-            private static final long serialVersionUID = 1L;
-
-            @Override
-            public IEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
-                final DataOutput out = output.getDataOutput();
-
-                return new IEvaluator() {
-                    private ArrayBackedValueStorage out1 = new ArrayBackedValueStorage();
-                    private IEvaluator eval1 = args[0].createEvaluator(out1);
-                    private AMutableInt32 m = new AMutableInt32(0);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
-                            .getSerializerDeserializer(BuiltinType.AINT32);
-                    @SuppressWarnings("unchecked")
-                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
-                            .getSerializerDeserializer(BuiltinType.ANULL);
-
-                    @Override
-                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
-                        try {
-                            out1.reset();
-                            eval1.evaluate(tuple);
-                            byte[] dateArray = out1.getBytes();
-
-                            if (dateArray[0] == SER_NULL_TYPE_TAG) {
-                                nullSerde.serialize(ANull.NULL, out);
-                                return;
-                            }
-
-                            if (dateArray[0] != SER_STRING_TYPE_TAG) {
-                                throw new AlgebricksException("year function can not be called on values of type"
-                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(dateArray[0]));
-                            }
-
-                            int year = (UTF8StringPointable.charAt(dateArray, 3) - '0') * 1000
-                                    + (UTF8StringPointable.charAt(dateArray, 4) - '0') * 100
-                                    + (UTF8StringPointable.charAt(dateArray, 5) - '0') * 10
-                                    + (UTF8StringPointable.charAt(dateArray, 6) - '0');
-                            m.setValue(year);
-
-                            int32Serde.serialize(m, out);
-                        } catch (HyracksDataException e) {
-                            throw new AlgebricksException(e);
-                        }
-                    }
-                };
-            }
-        };
-    }
-
-}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AbstractIntervalLogicFuncDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AbstractIntervalLogicFuncDescriptor.java
new file mode 100644
index 0000000..e2286fc
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AbstractIntervalLogicFuncDescriptor.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AIntervalSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public abstract class AbstractIntervalLogicFuncDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+
+    // allowed input types
+    private final static byte SER_INTERVAL_TYPE_TAG = ATypeTag.INTERVAL.serialize();
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_INTERVAL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] != SER_INTERVAL_TYPE_TAG) {
+                                throw new AlgebricksException(getIdentifier().getName()
+                                        + ": expects input type (INTERVAL, INTERVAL) but got ("
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0])
+                                        + ", "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0])
+                                        + ")");
+                            }
+
+                            if (AIntervalSerializerDeserializer.getIntervalTimeType(argOut0.getByteArray(), 1) != AIntervalSerializerDeserializer
+                                    .getIntervalTimeType(argOut1.getByteArray(), 1)) {
+                                throw new AlgebricksException(getIdentifier().getName()
+                                        + ": failed to compare intervals with different internal time type.");
+                            }
+
+                            ABoolean res = (compareIntervals(
+                                    AIntervalSerializerDeserializer.getIntervalStart(argOut0.getByteArray(), 1),
+                                    AIntervalSerializerDeserializer.getIntervalEnd(argOut0.getByteArray(), 1),
+                                    AIntervalSerializerDeserializer.getIntervalStart(argOut1.getByteArray(), 1),
+                                    AIntervalSerializerDeserializer.getIntervalEnd(argOut1.getByteArray(), 1))) ? ABoolean.TRUE
+                                    : ABoolean.FALSE;
+
+                            booleanSerde.serialize(res, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    protected abstract boolean compareIntervals(long s1, long e1, long s2, long e2);
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDateDurationDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDateDurationDescriptor.java
new file mode 100644
index 0000000..a9f66a2
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDateDurationDescriptor.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADate;
+import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AddDateDurationDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.ADD_DATE_DURATION;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AddDateDurationDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATE);
+
+                    private AMutableDate aDate = new AMutableDate(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATE_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DATE/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_DURATION_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DURATION/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            // get duration fields: yearMonth field and dayTime field
+                            int yearMonth = ADurationSerializerDeserializer.getYearMonth(argOut1.getByteArray(), 1);
+                            long dayTime = ADurationSerializerDeserializer.getDayTime(argOut1.getByteArray(), 1);
+
+                            // get date fields
+                            long datetimeChronon = ADateSerializerDeserializer.getChronon(argOut0.getByteArray(), 1)
+                                    * GregorianCalendarSystem.CHRONON_OF_DAY;
+
+                            datetimeChronon = DurationArithmeticOperations.addDuration(datetimeChronon, yearMonth,
+                                    dayTime);
+
+                            int dateChrononInDays = (int) (datetimeChronon / GregorianCalendarSystem.CHRONON_OF_DAY);
+                            if (dateChrononInDays < 0 && datetimeChronon % GregorianCalendarSystem.CHRONON_OF_DAY != 0) {
+                                dateChrononInDays -= 1;
+                            }
+
+                            aDate.setValue(dateChrononInDays);
+
+                            dateSerde.serialize(aDate, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDatetimeDurationDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDatetimeDurationDescriptor.java
new file mode 100644
index 0000000..ca27455
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddDatetimeDurationDescriptor.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADateTime;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AddDatetimeDurationDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.ADD_DATETIME_DURATION;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AddDatetimeDurationDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATETIME);
+
+                    private AMutableDateTime aDatetime = new AMutableDateTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DATETIME/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_DURATION_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DURATION/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            // get duration fields: yearMonth field and dayTime field
+                            int yearMonth = ADurationSerializerDeserializer.getYearMonth(argOut1.getByteArray(), 1);
+                            long dayTime = ADurationSerializerDeserializer.getDayTime(argOut1.getByteArray(), 1);
+
+                            // get date fields
+                            long datetimeChronon = ADateTimeSerializerDeserializer
+                                    .getChronon(argOut0.getByteArray(), 1);
+
+                            datetimeChronon = DurationArithmeticOperations.addDuration(datetimeChronon, yearMonth,
+                                    dayTime);
+
+                            aDatetime.setValue(datetimeChronon);
+
+                            datetimeSerde.serialize(aDatetime, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddTimeDurationDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddTimeDurationDescriptor.java
new file mode 100644
index 0000000..e7a4fc4
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AddTimeDurationDescriptor.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AddTimeDurationDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.ADD_TIME_DURATION;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AddTimeDurationDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ATIME);
+
+                    private AMutableTime aTime = new AMutableTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_TIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type TIME/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_DURATION_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DURATION/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            // get duration fields: yearMonth field and dayTime field
+                            int yearMonth = ADurationSerializerDeserializer.getYearMonth(argOut1.getByteArray(), 1);
+
+                            // cannot add a year-month duration to a time value
+                            if (yearMonth != 0) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": a TIME value cannot be added by a DURATION value with year-month field.");
+                            }
+
+                            long dayTime = ADurationSerializerDeserializer.getDayTime(argOut1.getByteArray(), 1);
+
+                            // get time fields
+                            int timeChronon = ATimeSerializerDeserializer.getChronon(argOut0.getByteArray(), 1);
+
+                            timeChronon = DurationArithmeticOperations.addDuration(timeChronon, dayTime);
+
+                            aTime.setValue(timeChronon);
+
+                            timeSerde.serialize(aTime, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustDateTimeForTimeZoneDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustDateTimeForTimeZoneDescriptor.java
new file mode 100644
index 0000000..441d20a
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustDateTimeForTimeZoneDescriptor.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem.Fields;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AdjustDateTimeForTimeZoneDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.ADJUST_DATETIME_FOR_TIMEZONE;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AdjustDateTimeForTimeZoneDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    private GregorianCalendarSystem calInstance = GregorianCalendarSystem.getInstance();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DATETIME/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type STRING/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            int timezone = ATimeParserFactory.parseTimezonePart(argOut1.getByteArray(), 3);
+
+                            if (!calInstance.validateTimeZone(timezone)) {
+                                throw new AlgebricksException(FID.getName() + ": wrong format for a time zone string!");
+                            }
+
+                            long chronon = ADateTimeSerializerDeserializer.getChronon(argOut0.getByteArray(), 1);
+
+                            chronon = calInstance.adjustChrononByTimezone(chronon, timezone);
+
+                            StringBuilder sbder = new StringBuilder();
+
+                            calInstance.getExtendStringRepWithTimezoneUntilField(chronon, timezone, sbder, Fields.YEAR,
+                                    Fields.MILLISECOND);
+
+                            out.writeByte(SER_STRING_TYPE_TAG);
+                            out.writeUTF(sbder.toString());
+
+                        } catch (Exception e1) {
+                            throw new AlgebricksException(e1);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustTimeForTimeZoneDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustTimeForTimeZoneDescriptor.java
new file mode 100644
index 0000000..1ca64c6
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/AdjustTimeForTimeZoneDescriptor.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.ATimeParserFactory;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem.Fields;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class AdjustTimeForTimeZoneDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.ADJUST_TIME_FOR_TIMEZONE;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+    private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new AdjustTimeForTimeZoneDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    private GregorianCalendarSystem calInstance = GregorianCalendarSystem.getInstance();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_TIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type TIME/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_STRING_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type STRING/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            int timezone = ATimeParserFactory.parseTimezonePart(argOut1.getByteArray(), 3);
+
+                            if (!calInstance.validateTimeZone(timezone)) {
+                                throw new AlgebricksException(FID.getName() + ": wrong format for a time zone string!");
+                            }
+
+                            int chronon = ATimeSerializerDeserializer.getChronon(argOut0.getByteArray(), 1);
+
+                            chronon = (int) calInstance.adjustChrononByTimezone(chronon, timezone);
+
+                            StringBuilder sbder = new StringBuilder();
+
+                            calInstance.getExtendStringRepWithTimezoneUntilField(chronon, timezone, sbder, Fields.HOUR,
+                                    Fields.MILLISECOND);
+
+                            out.writeByte(SER_STRING_TYPE_TAG);
+                            out.writeUTF(sbder.toString());
+
+                        } catch (Exception e1) {
+                            throw new AlgebricksException(e1);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDuartionFromDateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDuartionFromDateDescriptor.java
new file mode 100644
index 0000000..c6da17e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDuartionFromDateDescriptor.java
@@ -0,0 +1,235 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADuration;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CalendarDuartionFromDateDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.CALENDAR_DURATION_FROM_DATE;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CalendarDuartionFromDateDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADURATION);
+
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0);
+
+                    private GregorianCalendarSystem calInstanct = GregorianCalendarSystem.getInstance();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATE_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DATE/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_DURATION_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DURATION/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            int yearMonthDurationInMonths = ADurationSerializerDeserializer.getYearMonth(
+                                    argOut1.getByteArray(), 1);
+                            long dayTimeDurationInMs = ADurationSerializerDeserializer.getDayTime(
+                                    argOut1.getByteArray(), 1);
+
+                            long startingTimePoint = ADateSerializerDeserializer.getChronon(argOut0.getByteArray(), 1)
+                                    * GregorianCalendarSystem.CHRONON_OF_DAY;
+
+                            long endingTimePoint = DurationArithmeticOperations.addDuration(startingTimePoint,
+                                    yearMonthDurationInMonths, dayTimeDurationInMs);
+
+                            if (startingTimePoint == endingTimePoint) {
+                                aDuration.setValue(0, 0);
+                            } else {
+
+                                boolean negative = false;
+
+                                if (endingTimePoint < startingTimePoint) {
+                                    negative = true;
+                                    // swap the starting and ending time, so that ending time is always larger than the starting time.
+                                    long tmpTime = endingTimePoint;
+                                    endingTimePoint = startingTimePoint;
+                                    startingTimePoint = tmpTime;
+                                }
+
+                                int year0 = calInstanct.getYear(startingTimePoint);
+                                int month0 = calInstanct.getMonthOfYear(startingTimePoint, year0);
+
+                                int year1 = calInstanct.getYear(endingTimePoint);
+                                int month1 = calInstanct.getMonthOfYear(endingTimePoint, year1);
+
+                                int year = year1 - year0;
+                                int month = month1 - month0;
+                                int day = calInstanct.getDayOfMonthYear(endingTimePoint, year1, month1)
+                                        - calInstanct.getDayOfMonthYear(startingTimePoint, year0, month0);
+                                int hour = calInstanct.getHourOfDay(endingTimePoint)
+                                        - calInstanct.getHourOfDay(startingTimePoint);
+                                int min = calInstanct.getMinOfHour(endingTimePoint)
+                                        - calInstanct.getMinOfHour(startingTimePoint);
+                                int sec = calInstanct.getSecOfMin(endingTimePoint)
+                                        - calInstanct.getSecOfMin(startingTimePoint);
+                                int ms = calInstanct.getMillisOfSec(endingTimePoint)
+                                        - calInstanct.getMillisOfSec(startingTimePoint);
+
+                                if (ms < 0) {
+                                    ms += GregorianCalendarSystem.CHRONON_OF_SECOND;
+                                    sec -= 1;
+                                }
+
+                                if (sec < 0) {
+                                    sec += GregorianCalendarSystem.CHRONON_OF_MINUTE
+                                            / GregorianCalendarSystem.CHRONON_OF_SECOND;
+                                    min -= 1;
+                                }
+
+                                if (min < 0) {
+                                    min += GregorianCalendarSystem.CHRONON_OF_HOUR
+                                            / GregorianCalendarSystem.CHRONON_OF_MINUTE;
+                                    hour -= 1;
+                                }
+
+                                if (hour < 0) {
+                                    hour += GregorianCalendarSystem.CHRONON_OF_DAY
+                                            / GregorianCalendarSystem.CHRONON_OF_HOUR;
+                                    day -= 1;
+                                }
+
+                                if (day < 0) {
+                                    boolean isLeapYear = calInstanct.isLeapYear(year1);
+                                    day += (isLeapYear) ? (GregorianCalendarSystem.DAYS_OF_MONTH_LEAP[month1 - 2])
+                                            : (GregorianCalendarSystem.DAYS_OF_MONTH_ORDI[month1 - 2]);
+                                    month -= 1;
+                                }
+
+                                if (month < 0) {
+                                    month += GregorianCalendarSystem.MONTHS_IN_A_YEAR;
+                                    year -= 1;
+                                }
+
+                                if (negative) {
+                                    aDuration.setValue(-1 * (year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month),
+                                            -1
+                                                    * (day * GregorianCalendarSystem.CHRONON_OF_DAY + hour
+                                                            * GregorianCalendarSystem.CHRONON_OF_HOUR + min
+                                                            * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec
+                                                            * GregorianCalendarSystem.CHRONON_OF_SECOND + ms));
+                                } else {
+                                    aDuration.setValue(year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month, day
+                                            * GregorianCalendarSystem.CHRONON_OF_DAY + hour
+                                            * GregorianCalendarSystem.CHRONON_OF_HOUR + min
+                                            * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec
+                                            * GregorianCalendarSystem.CHRONON_OF_SECOND + ms);
+                                }
+                            }
+
+                            durationSerde.serialize(aDuration, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDurationFromDateTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDurationFromDateTimeDescriptor.java
new file mode 100644
index 0000000..e09f1da
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CalendarDurationFromDateTimeDescriptor.java
@@ -0,0 +1,249 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADuration;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.DurationArithmeticOperations;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+/**
+ * This function converts a given duration into a "human-readable" duration containing both year-month and day-time
+ * duration parts, by re-organizing values between the duration fields from the given reference time point.
+ * <p/>
+ * The basic algorithm for this convert is simple: <br/>
+ * 1. Calculate the time point by adding the given duration to the given time point;<br/>
+ * 2. Calculate the differences by fields between two different time points;<br/>
+ * 3. Re-format the duration into a human-readable one.
+ * <p/>
+ * Here "human-readable" means the value of each field of the duration is within the value range of the field in the calendar system. For example, month would be in [0, 12), and hour would be in [0, 24).
+ * <p/>
+ * The result can be considered as a "field-based" difference between the two datetime value, but all negative values would be converted to be non-negative.
+ * <p/>
+ * In the implementation, we always do the subtraction from the later time point, resulting a positive duration always.
+ * <p/>
+ */
+public class CalendarDurationFromDateTimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.CALENDAR_DURATION_FROM_DATETIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+    private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CalendarDurationFromDateTimeDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADURATION);
+
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0);
+
+                    private GregorianCalendarSystem calInstanct = GregorianCalendarSystem.getInstance();
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DATETIME/NULL for parameter 0 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
+                            }
+
+                            if (argOut1.getByteArray()[0] != SER_DURATION_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects type DURATION/NULL for parameter 1 but got "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0]));
+                            }
+
+                            int yearMonthDurationInMonths = ADurationSerializerDeserializer.getYearMonth(
+                                    argOut1.getByteArray(), 1);
+                            long dayTimeDurationInMs = ADurationSerializerDeserializer.getDayTime(
+                                    argOut1.getByteArray(), 1);
+
+                            long startingTimePoint = ADateTimeSerializerDeserializer.getChronon(argOut0.getByteArray(),
+                                    1);
+
+                            long endingTimePoint = DurationArithmeticOperations.addDuration(startingTimePoint,
+                                    yearMonthDurationInMonths, dayTimeDurationInMs);
+
+                            if (startingTimePoint == endingTimePoint) {
+                                aDuration.setValue(0, 0);
+                            } else {
+
+                                boolean negative = false;
+
+                                if (endingTimePoint < startingTimePoint) {
+                                    negative = true;
+                                    // swap the starting and ending time, so that ending time is always larger than the starting time.
+                                    long tmpTime = endingTimePoint;
+                                    endingTimePoint = startingTimePoint;
+                                    startingTimePoint = tmpTime;
+                                }
+
+                                int year0 = calInstanct.getYear(startingTimePoint);
+                                int month0 = calInstanct.getMonthOfYear(startingTimePoint, year0);
+
+                                int year1 = calInstanct.getYear(endingTimePoint);
+                                int month1 = calInstanct.getMonthOfYear(endingTimePoint, year1);
+
+                                int year = year1 - year0;
+                                int month = month1 - month0;
+                                int day = calInstanct.getDayOfMonthYear(endingTimePoint, year1, month1)
+                                        - calInstanct.getDayOfMonthYear(startingTimePoint, year0, month0);
+                                int hour = calInstanct.getHourOfDay(endingTimePoint)
+                                        - calInstanct.getHourOfDay(startingTimePoint);
+                                int min = calInstanct.getMinOfHour(endingTimePoint)
+                                        - calInstanct.getMinOfHour(startingTimePoint);
+                                int sec = calInstanct.getSecOfMin(endingTimePoint)
+                                        - calInstanct.getSecOfMin(startingTimePoint);
+                                int ms = calInstanct.getMillisOfSec(endingTimePoint)
+                                        - calInstanct.getMillisOfSec(startingTimePoint);
+
+                                if (ms < 0) {
+                                    ms += GregorianCalendarSystem.CHRONON_OF_SECOND;
+                                    sec -= 1;
+                                }
+
+                                if (sec < 0) {
+                                    sec += GregorianCalendarSystem.CHRONON_OF_MINUTE
+                                            / GregorianCalendarSystem.CHRONON_OF_SECOND;
+                                    min -= 1;
+                                }
+
+                                if (min < 0) {
+                                    min += GregorianCalendarSystem.CHRONON_OF_HOUR
+                                            / GregorianCalendarSystem.CHRONON_OF_MINUTE;
+                                    hour -= 1;
+                                }
+
+                                if (hour < 0) {
+                                    hour += GregorianCalendarSystem.CHRONON_OF_DAY
+                                            / GregorianCalendarSystem.CHRONON_OF_HOUR;
+                                    day -= 1;
+                                }
+
+                                if (day < 0) {
+                                    boolean isLeapYear = calInstanct.isLeapYear(year1);
+                                    day += (isLeapYear) ? (GregorianCalendarSystem.DAYS_OF_MONTH_LEAP[month1 - 2])
+                                            : (GregorianCalendarSystem.DAYS_OF_MONTH_ORDI[month1 - 2]);
+                                    month -= 1;
+                                }
+
+                                if (month < 0) {
+                                    month += GregorianCalendarSystem.MONTHS_IN_A_YEAR;
+                                    year -= 1;
+                                }
+
+                                if (negative) {
+                                    aDuration.setValue(-1 * (year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month),
+                                            -1
+                                                    * (day * GregorianCalendarSystem.CHRONON_OF_DAY + hour
+                                                            * GregorianCalendarSystem.CHRONON_OF_HOUR + min
+                                                            * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec
+                                                            * GregorianCalendarSystem.CHRONON_OF_SECOND + ms));
+                                } else {
+                                    aDuration.setValue(year * GregorianCalendarSystem.MONTHS_IN_A_YEAR + month, day
+                                            * GregorianCalendarSystem.CHRONON_OF_DAY + hour
+                                            * GregorianCalendarSystem.CHRONON_OF_HOUR + min
+                                            * GregorianCalendarSystem.CHRONON_OF_MINUTE + sec
+                                            * GregorianCalendarSystem.CHRONON_OF_SECOND + ms);
+                                }
+                            }
+
+                            durationSerde.serialize(aDuration, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateDescriptor.java
new file mode 100644
index 0000000..21103d6
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateDescriptor.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADate;
+import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CurrentDateDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = AsterixBuiltinFunctions.CURRENT_DATE;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CurrentDateDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATE);
+                    private AMutableDate aDate = new AMutableDate(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            int dateChronon = (int) (System.currentTimeMillis() / GregorianCalendarSystem.CHRONON_OF_DAY);
+                            aDate.setValue(dateChronon);
+                            dateSerde.serialize(aDate, out);
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateTimeDescriptor.java
new file mode 100644
index 0000000..cd0af68
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentDateTimeDescriptor.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADateTime;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CurrentDateTimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final static FunctionIdentifier FID = AsterixBuiltinFunctions.CURRENT_DATETIME;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CurrentDateTimeDescriptor();
+        }
+    };
+
+    private CurrentDateTimeDescriptor() {
+    }
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATETIME);
+                    private AMutableDateTime aDateTime = new AMutableDateTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            aDateTime.setValue(System.currentTimeMillis());
+                            datetimeSerde.serialize(aDateTime, out);
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentTimeDescriptor.java
new file mode 100644
index 0000000..2e012a3
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/CurrentTimeDescriptor.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableTime;
+import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CurrentTimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.CURRENT_TIME;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CurrentTimeDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ATIME);
+                    private AMutableTime aTime = new AMutableTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        try {
+                            int timeChronon = (int) (System.currentTimeMillis() % GregorianCalendarSystem.CHRONON_OF_DAY);
+                            aTime.setValue(timeChronon);
+                            timeSerde.serialize(aTime, out);
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromDatetimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromDatetimeDescriptor.java
new file mode 100644
index 0000000..b0ced1c
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromDatetimeDescriptor.java
@@ -0,0 +1,109 @@
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADate;
+import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class DateFromDatetimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.DATE_FROM_DATETIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new DateFromDatetimeDescriptor();
+        }
+
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    // possible returning types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATE);
+                    private AMutableDate aDate = new AMutableDate(0);
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects input type DATETIME/NULL but got "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                            .getByteArray()[0]));
+                                }
+                                long datetimeChronon = ADateTimeSerializerDeserializer.getChronon(
+                                        argOut.getByteArray(), 1);
+                                int dateChrononInDays = (int) (datetimeChronon / GregorianCalendarSystem.CHRONON_OF_DAY);
+                                if (dateChrononInDays < 0
+                                        && datetimeChronon % GregorianCalendarSystem.CHRONON_OF_DAY != 0) {
+                                    dateChrononInDays -= 1;
+                                }
+                                aDate.setValue(dateChrononInDays);
+                                dateSerde.serialize(aDate, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromUnixTimeInDaysDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromUnixTimeInDaysDescriptor.java
new file mode 100644
index 0000000..5743ff9
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DateFromUnixTimeInDaysDescriptor.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADate;
+import edu.uci.ics.asterix.om.base.AMutableDate;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class DateFromUnixTimeInDaysDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.DATE_FROM_UNIX_TIME_IN_DAYS;
+
+    // allowed input types
+    private static final byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private static final byte SER_INT8_TYPE_TAG = ATypeTag.INT8.serialize();
+    private static final byte SER_INT16_TYPE_TAG = ATypeTag.INT16.serialize();
+    private static final byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new DateFromUnixTimeInDaysDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private AMutableDate aDate = new AMutableDate(0);
+
+                    // possible returning types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADate> dateSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATE);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut.getByteArray()[0] == SER_INT8_TYPE_TAG) {
+                                    aDate.setValue(AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT16_TYPE_TAG) {
+                                    aDate.setValue(AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT32_TYPE_TAG) {
+                                    aDate.setValue(AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1));
+                                } else {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects type INT8/INT16/INT32/INT64/NULL but got "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                            .getByteArray()[0]));
+                                }
+                                dateSerde.serialize(aDate, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromDateAndTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromDateAndTimeDescriptor.java
new file mode 100644
index 0000000..7854a2b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromDateAndTimeDescriptor.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADateTime;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class DatetimeFromDateAndTimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.DATETIME_FROM_DATE_TIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+    private final static byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new DatetimeFromDateAndTimeDescriptor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible returning types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATETIME);
+                    private AMutableDateTime aDateTime = new AMutableDateTime(0);
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut0.getByteArray()[0] != SER_DATE_TYPE_TAG
+                                        && argOut1.getByteArray()[0] != SER_TIME_TYPE_TAG) {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects input type (DATE/NULL, TIME/NULL) but got ("
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0
+                                                            .getByteArray()[0])
+                                                    + ", "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1
+                                                            .getByteArray()[0]) + ").");
+
+                                }
+
+                                long datetimeChronon = ADateSerializerDeserializer
+                                        .getChronon(argOut0.getByteArray(), 1)
+                                        * GregorianCalendarSystem.CHRONON_OF_DAY
+                                        + ATimeSerializerDeserializer.getChronon(argOut1.getByteArray(), 1);
+
+                                aDateTime.setValue(datetimeChronon);
+                                datetimeSerde.serialize(aDateTime, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromUnixTimeInMsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromUnixTimeInMsDescriptor.java
new file mode 100644
index 0000000..447184e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/DatetimeFromUnixTimeInMsDescriptor.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADateTime;
+import edu.uci.ics.asterix.om.base.AMutableDateTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class DatetimeFromUnixTimeInMsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.DATETIME_FROM_UNIX_TIME_IN_MS;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_INT8_TYPE_TAG = ATypeTag.INT8.serialize();
+    private final static byte SER_INT16_TYPE_TAG = ATypeTag.INT16.serialize();
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+    private final static byte SER_INT64_TYPE_TAG = ATypeTag.INT64.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new DatetimeFromUnixTimeInMsDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADateTime> datetimeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADATETIME);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    private AMutableDateTime aDatetime = new AMutableDateTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut.getByteArray()[0] == SER_INT8_TYPE_TAG) {
+                                    aDatetime.setValue(AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT16_TYPE_TAG) {
+                                    aDatetime.setValue(AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT32_TYPE_TAG) {
+                                    aDatetime.setValue(AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT64_TYPE_TAG) {
+                                    aDatetime.setValue(AInt64SerializerDeserializer.getLong(argOut.getByteArray(), 1));
+                                } else {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects type INT8/INT16/INT32/INT64/NULL but got "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                            .getByteArray()[0]));
+                                }
+                                datetimeSerde.serialize(aDatetime, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalAfterDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalAfterDescriptor.java
new file mode 100644
index 0000000..9c44e19
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalAfterDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalAfterDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_AFTER;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalAfterDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.after(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalBeforeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalBeforeDescriptor.java
new file mode 100644
index 0000000..dc908b9
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalBeforeDescriptor.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalBeforeDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_BEFORE;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalBeforeDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.before(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoveredByDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoveredByDescriptor.java
new file mode 100644
index 0000000..bc17852
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoveredByDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalCoveredByDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_COVERED_BY;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalCoveredByDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.coveredBy(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoversDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoversDescriptor.java
new file mode 100644
index 0000000..844ef75
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalCoversDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalCoversDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_COVERS;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalCoversDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.covers(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndedByDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndedByDescriptor.java
new file mode 100644
index 0000000..98c7833f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndedByDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalEndedByDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_ENDED_BY;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalEndedByDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.endedBy(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndsDecriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndsDecriptor.java
new file mode 100644
index 0000000..140583a
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalEndsDecriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalEndsDecriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_ENDS;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalEndsDecriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.ends(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalLogic.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalLogic.java
new file mode 100644
index 0000000..e8e814f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalLogic.java
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+public class IntervalLogic {
+
+    public static <T extends Comparable<T>> boolean validateInterval(T s, T e) {
+        return s.compareTo(e) <= 0;
+    }
+
+    /**
+     * Anything from interval 1 is less than anything from interval 2.
+     * <p/>
+     * |------|<br/>
+     * &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|------|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean before(T s1, T e1, T s2, T e2) {
+        return e1.compareTo(s2) < 0;
+    }
+
+    public static <T extends Comparable<T>> boolean after(T s1, T e1, T s2, T e2) {
+        return before(s2, e2, s1, e1);
+    }
+
+    /**
+     * The end of interval 1 is the same as the start of interval 2.
+     * <p/>
+     * |------|<br/>
+     * &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|------|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean meets(T s1, T e1, T s2, T e2) {
+        return e1.compareTo(s2) == 0;
+    }
+
+    public static <T extends Comparable<T>> boolean metBy(T s1, T e1, T s2, T e2) {
+        return meets(s2, e2, s1, e1);
+    }
+
+    /**
+     * Something at the end of interval 1 is contained as the beginning of interval 2.
+     * <p/>
+     * |------|<br/>
+     * &nbsp;&nbsp;&nbsp;&nbsp;|------|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean overlaps(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(s2) < 0 && e1.compareTo(s2) > 0 && e2.compareTo(e1) > 0;
+    }
+
+    public static <T extends Comparable<T>> boolean overlappedBy(T s1, T e1, T s2, T e2) {
+        return overlaps(s2, e2, s1, e1);
+    }
+
+    /**
+     * Something is shared by both interval 1 and interval 2.
+     * <p/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean overlap(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(e2) < 0 && s2.compareTo(e1) < 0;
+    }
+
+    /**
+     * Anything from interval 1 is contained in the beginning of interval 2.
+     * <p/>
+     * |------|<br/>
+     * |-------|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean starts(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(s2) == 0 && e1.compareTo(e2) <= 0;
+    }
+
+    public static <T extends Comparable<T>> boolean startedBy(T s1, T e1, T s2, T e2) {
+        return starts(s2, e2, s1, e1);
+    }
+
+    /**
+     * Anything from interval 2 is in interval 1.
+     * <p/>
+     * |------|<br/>
+     * &nbsp;&nbsp;|----|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean covers(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(s2) <= 0 && e1.compareTo(e2) >= 0;
+    }
+
+    public static <T extends Comparable<T>> boolean coveredBy(T s1, T e1, T s2, T e2) {
+        return covers(s2, e2, s1, e1);
+    }
+
+    /**
+     * Anything from interval 1 is from the ending part of interval 2.
+     * <p/>
+     * &nbsp;&nbsp;|-----|<br/>
+     * |------|<br/>
+     * 
+     * @param s1
+     * @param e1
+     * @param s2
+     * @param e2
+     * @return
+     */
+    public static <T extends Comparable<T>> boolean ends(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(s2) >= 0 && e1.compareTo(e2) == 0;
+    }
+
+    public static <T extends Comparable<T>> boolean endedBy(T s1, T e1, T s2, T e2) {
+        return ends(s2, e2, s1, e1);
+    }
+
+    public static <T extends Comparable<T>> boolean equals(T s1, T e1, T s2, T e2) {
+        return s1.compareTo(s1) == 0 && e1.compareTo(e2) == 0;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMeetsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMeetsDescriptor.java
new file mode 100644
index 0000000..a2232a8
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMeetsDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalMeetsDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_MEETS;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalMeetsDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.meets(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMetByDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMetByDescriptor.java
new file mode 100644
index 0000000..377d033
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalMetByDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalMetByDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_MET_BY;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalMetByDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.metBy(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlappedByDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlappedByDescriptor.java
new file mode 100644
index 0000000..f5d82f0
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlappedByDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalOverlappedByDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_OVERLAPPED_BY;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalOverlappedByDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.overlappedBy(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlapsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlapsDescriptor.java
new file mode 100644
index 0000000..d244010
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalOverlapsDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalOverlapsDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_OVERLAPS;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalOverlapsDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.overlaps(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartedByDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartedByDescriptor.java
new file mode 100644
index 0000000..94b01a1
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartedByDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalStartedByDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_STARTED_BY;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalStartedByDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.startedBy(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartsDescriptor.java
new file mode 100644
index 0000000..ce27742
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/IntervalStartsDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class IntervalStartsDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.INTERVAL_STARTS;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new IntervalStartsDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.starts(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/OverlapDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/OverlapDescriptor.java
new file mode 100644
index 0000000..2919f90
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/OverlapDescriptor.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+
+public class OverlapDescriptor extends AbstractIntervalLogicFuncDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.OVERLAP;
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new OverlapDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AbstractIntervalLogicFuncDescriptor#compareIntervals(long, long, long, long)
+     */
+    @Override
+    protected boolean compareIntervals(long s1, long e1, long s2, long e2) {
+        return IntervalLogic.overlap(s1, e1, s2, e2);
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDateDescriptor.java
new file mode 100644
index 0000000..6f54162
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDateDescriptor.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADuration;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SubtractDateDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.SUBTRACT_DATE;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATE_TYPE_TAG = ATypeTag.DATE.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubtractDateDescriptor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADURATION);
+
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATE_TYPE_TAG
+                                    && argOut1.getByteArray()[0] != SER_DATE_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects input type (DATE/NULL, DATE/NULL) but got ("
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0])
+                                        + ", "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0])
+                                        + ").");
+                            }
+
+                            long durationChronon = (ADateSerializerDeserializer.getChronon(argOut0.getByteArray(), 1) - ADateSerializerDeserializer
+                                    .getChronon(argOut1.getByteArray(), 1)) * GregorianCalendarSystem.CHRONON_OF_DAY;
+
+                            aDuration.setValue(0, durationChronon);
+
+                            durationSerde.serialize(aDuration, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDatetimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDatetimeDescriptor.java
new file mode 100644
index 0000000..dc677b5
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractDatetimeDescriptor.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADuration;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SubtractDatetimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.SUBTRACT_DATETIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubtractDatetimeDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADURATION);
+
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_DATETIME_TYPE_TAG
+                                    && argOut1.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects input type (DATETIME/NULL, DATETIME/NULL) but got ("
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0])
+                                        + ", "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0])
+                                        + ").");
+                            }
+
+                            long durationChronon = ADateTimeSerializerDeserializer
+                                    .getChronon(argOut0.getByteArray(), 1)
+                                    - ADateTimeSerializerDeserializer.getChronon(argOut1.getByteArray(), 1);
+
+                            aDuration.setValue(0, durationChronon);
+
+                            durationSerde.serialize(aDuration, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractTimeDescriptor.java
new file mode 100644
index 0000000..579030d
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/SubtractTimeDescriptor.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADuration;
+import edu.uci.ics.asterix.om.base.AMutableDuration;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class SubtractTimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.SUBTRACT_TIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_TIME_TYPE_TAG = ATypeTag.TIME.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubtractTimeDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut0 = new ArrayBackedValueStorage();
+                    private ArrayBackedValueStorage argOut1 = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(argOut0);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(argOut1);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADuration> durationSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADURATION);
+
+                    private AMutableDuration aDuration = new AMutableDuration(0, 0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut0.reset();
+                        eval0.evaluate(tuple);
+                        argOut1.reset();
+                        eval1.evaluate(tuple);
+
+                        try {
+                            if (argOut0.getByteArray()[0] == SER_NULL_TYPE_TAG
+                                    || argOut1.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                                return;
+                            }
+
+                            if (argOut0.getByteArray()[0] != SER_TIME_TYPE_TAG
+                                    && argOut1.getByteArray()[0] != SER_TIME_TYPE_TAG) {
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects input type (TIME/NULL, TIME/NULL) but got ("
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0])
+                                        + ", "
+                                        + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut1.getByteArray()[0])
+                                        + ").");
+                            }
+
+                            int durationChronon = ATimeSerializerDeserializer.getChronon(argOut0.getByteArray(), 1)
+                                    - ATimeSerializerDeserializer.getChronon(argOut1.getByteArray(), 1);
+
+                            aDuration.setValue(0, durationChronon);
+
+                            durationSerde.serialize(aDuration, out);
+
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromDatetimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromDatetimeDescriptor.java
new file mode 100644
index 0000000..00fe414
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromDatetimeDescriptor.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TimeFromDatetimeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.TIME_FROM_DATETIME;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_DATETIME_TYPE_TAG = ATypeTag.DATETIME.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TimeFromDatetimeDescriptor();
+        }
+
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    // possible returning types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ATIME);
+                    private AMutableTime aTime = new AMutableTime(0);
+
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut.getByteArray()[0] != SER_DATETIME_TYPE_TAG) {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects input type DATETIME/NULL but got "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                            .getByteArray()[0]));
+                                }
+                                long datetimeChronon = ADateTimeSerializerDeserializer.getChronon(
+                                        argOut.getByteArray(), 1);
+                                int timeChronon = (int) (datetimeChronon % GregorianCalendarSystem.CHRONON_OF_DAY);
+                                if (timeChronon < 0) {
+                                    timeChronon += GregorianCalendarSystem.CHRONON_OF_DAY;
+                                }
+                                aTime.setValue(timeChronon);
+                                timeSerde.serialize(aTime, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromUnixTimeInMsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromUnixTimeInMsDescriptor.java
new file mode 100644
index 0000000..98fd75f
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/TimeFromUnixTimeInMsDescriptor.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions.temporal;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutableTime;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.ATime;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class TimeFromUnixTimeInMsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private final static long serialVersionUID = 1L;
+    public final static FunctionIdentifier FID = AsterixBuiltinFunctions.TIME_FROM_UNIX_TIME_IN_MS;
+
+    // allowed input types
+    private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
+    private final static byte SER_INT8_TYPE_TAG = ATypeTag.INT8.serialize();
+    private final static byte SER_INT16_TYPE_TAG = ATypeTag.INT16.serialize();
+    private final static byte SER_INT32_TYPE_TAG = ATypeTag.INT32.serialize();
+
+    public final static IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TimeFromUnixTimeInMsDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.base.IScalarFunctionDynamicDescriptor#createEvaluatorFactory(edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory[])
+     */
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    // possible output types
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ATIME);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ANULL);
+
+                    private AMutableTime aTime = new AMutableTime(0);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        try {
+                            if (argOut.getByteArray()[0] == SER_NULL_TYPE_TAG) {
+                                nullSerde.serialize(ANull.NULL, out);
+                            } else {
+                                if (argOut.getByteArray()[0] == SER_INT8_TYPE_TAG) {
+                                    aTime.setValue(AInt8SerializerDeserializer.getByte(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT16_TYPE_TAG) {
+                                    aTime.setValue(AInt16SerializerDeserializer.getShort(argOut.getByteArray(), 1));
+                                } else if (argOut.getByteArray()[0] == SER_INT32_TYPE_TAG) {
+                                    aTime.setValue(AInt32SerializerDeserializer.getInt(argOut.getByteArray(), 1));
+                                } else {
+                                    throw new AlgebricksException(
+                                            FID.getName()
+                                                    + ": expects input type INT8/INT16/INT32/NULL but got "
+                                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut
+                                                            .getByteArray()[0]));
+                                }
+                                timeSerde.serialize(aTime, out);
+                            }
+                        } catch (HyracksDataException hex) {
+                            throw new AlgebricksException(hex);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.IFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
index 1221f7f..f12ea91 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
@@ -17,7 +17,9 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryBooleanInspectorImpl;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
+import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFamilyProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryIntegerInspector;
+import edu.uci.ics.asterix.formats.nontagged.AqlJSONPrinterFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlNormalizedKeyComputerFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlPrinterFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -31,27 +33,52 @@
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.functions.FunctionManagerHolder;
 import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.functions.IFunctionManager;
+import edu.uci.ics.asterix.om.typecomputer.base.TypeComputerUtilities;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.runtime.aggregates.collections.ListifyAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.scalar.ScalarAvgAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.scalar.ScalarCountAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.scalar.ScalarMaxAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.scalar.ScalarMinAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.scalar.ScalarSumAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableAvgAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableCountAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableGlobalAvgAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableLocalAvgAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableLocalSumAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.serializable.std.SerializableSumAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.AvgAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.CountAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.GlobalAvgAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.LocalAvgAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.std.LocalMaxAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.std.LocalMinAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.std.LocalSumAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.MaxAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.MinAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.std.SumAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.aggregates.stream.EmptyStreamAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.stream.NonEmptyStreamAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalDayAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalHourAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalMillisecondAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalMinuteAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalMonthAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalSecondAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.TemporalYearAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.CircleCenterAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.CircleRadiusAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.LineRectanglePolygonAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.PointXCoordinateAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.PointYCoordinateAccessor;
 import edu.uci.ics.asterix.runtime.evaluators.common.CreateMBREvalFactory;
 import edu.uci.ics.asterix.runtime.evaluators.common.FieldAccessByIndexEvalFactory;
 import edu.uci.ics.asterix.runtime.evaluators.common.FunctionManagerImpl;
@@ -66,6 +93,12 @@
 import edu.uci.ics.asterix.runtime.evaluators.constructors.AInt32ConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.constructors.AInt64ConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.constructors.AInt8ConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalFromDateConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalFromDateTimeConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalFromTimeConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalStartFromDateConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalStartFromDateTimeConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.constructors.AIntervalStartFromTimeConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.constructors.ALineConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.constructors.ANullConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.constructors.APoint3DConstructorDescriptor;
@@ -76,7 +109,9 @@
 import edu.uci.ics.asterix.runtime.evaluators.constructors.ATimeConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.AndDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.AnyCollectionMemberDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.CastRecordDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.ClosedRecordConstructorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.CodePointToStringDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.ContainsDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.CountHashedGramTokensDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.CountHashedWordTokensDescriptor;
@@ -88,6 +123,8 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.CreateRectangleDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.EditDistanceCheckDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.EditDistanceDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.EditDistanceListIsFilterable;
+import edu.uci.ics.asterix.runtime.evaluators.functions.EditDistanceStringIsFilterable;
 import edu.uci.ics.asterix.runtime.evaluators.functions.EmbedTypeDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.EndsWithDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.FieldAccessByIndexDescriptor;
@@ -102,9 +139,17 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.LenDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.LikeDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NotDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NotNullDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericAbsDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericAddDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericCeilingDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericDivideDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericFloorDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericModuloDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericMultiplyDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericRoundDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericRoundHalfToEven2Descriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericRoundHalfToEvenDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericSubtractDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericUnaryMinusDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.OpenRecordConstructorDescriptor;
@@ -116,6 +161,8 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.SimilarityJaccardDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.SimilarityJaccardPrefixCheckDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.SimilarityJaccardPrefixDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.SimilarityJaccardSortedCheckDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.SimilarityJaccardSortedDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.SpatialAreaDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.SpatialCellDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.SpatialDistanceDescriptor;
@@ -125,24 +172,65 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.SwitchCaseDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.UnorderedListConstructorDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.WordTokensDescriptor;
-import edu.uci.ics.asterix.runtime.evaluators.functions.YearDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringConcatDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringEndWithDescrtiptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringEqualDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringJoinDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringLengthDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringLowerCaseDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringMatchesDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringMatchesWithFlagDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringReplaceDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringReplaceWithFlagsDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringStartWithDescrtiptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.StringToCodePointDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.Substring2Descriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.SubstringAfterDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.SubstringBeforeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AddDateDurationDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AddDatetimeDurationDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AddTimeDurationDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AdjustDateTimeForTimeZoneDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.AdjustTimeForTimeZoneDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.CalendarDuartionFromDateDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.CalendarDurationFromDateTimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.CurrentDateDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.CurrentDateTimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.CurrentTimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.DateFromDatetimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.DateFromUnixTimeInDaysDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.DatetimeFromDateAndTimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.DatetimeFromUnixTimeInMsDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalAfterDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalBeforeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalCoveredByDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalCoversDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalEndedByDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalEndsDecriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalMeetsDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalMetByDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.OverlapDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalOverlappedByDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalOverlapsDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalStartedByDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.IntervalStartsDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.SubtractDateDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.SubtractDatetimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.SubtractTimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.TimeFromDatetimeDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.temporal.TimeFromUnixTimeInMsDescriptor;
 import edu.uci.ics.asterix.runtime.operators.file.AdmSchemafullRecordParserFactory;
 import edu.uci.ics.asterix.runtime.operators.file.NtDelimitedDataTupleParserFactory;
 import edu.uci.ics.asterix.runtime.runningaggregates.std.TidRunningAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.std.RangeDescriptor;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.std.ScanCollectionDescriptor;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.std.SubsetCollectionDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryBooleanInspector;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryComparatorFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryHashFunctionFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IBinaryIntegerInspector;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.INormalizedKeyComputerFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.IPrinterFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ISerializerDeserializerProvider;
-import edu.uci.ics.hyracks.algebricks.core.algebra.data.ITypeTraitProvider;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
@@ -153,15 +241,21 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.evaluators.ColumnAccessEvalFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.evaluators.ConstantEvalFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.Triple;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspectorFactory;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryComparatorFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFamilyProvider;
+import edu.uci.ics.hyracks.algebricks.data.IBinaryIntegerInspectorFactory;
+import edu.uci.ics.hyracks.algebricks.data.INormalizedKeyComputerFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.IPrinterFactoryProvider;
+import edu.uci.ics.hyracks.algebricks.data.ISerializerDeserializerProvider;
+import edu.uci.ics.hyracks.algebricks.data.ITypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.evaluators.ColumnAccessEvalFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.evaluators.ConstantEvalFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.INullWriterFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.DoubleParserFactory;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.FloatParserFactory;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
@@ -179,6 +273,9 @@
     private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
 
     private static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
+
+    public static final String NON_TAGGED_DATA_FORMAT = "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat";
+
     static {
         typeToValueParserFactMap.put(ATypeTag.INT32, IntegerParserFactory.INSTANCE);
         typeToValueParserFactMap.put(ATypeTag.FLOAT, FloatParserFactory.INSTANCE);
@@ -201,127 +298,225 @@
             return;
         }
 
-        List<IFunctionDescriptor> temp = new ArrayList<IFunctionDescriptor>();
+        List<IFunctionDescriptorFactory> temp = new ArrayList<IFunctionDescriptorFactory>();
 
         // format-independent
-        temp.add(new ContainsDescriptor());
-        temp.add(new EndsWithDescriptor());
-        temp.add(new StartsWithDescriptor());
-        temp.add(new SubstringDescriptor());
-        temp.add(new TidRunningAggregateDescriptor());
+        temp.add(ContainsDescriptor.FACTORY);
+        temp.add(EndsWithDescriptor.FACTORY);
+        temp.add(StartsWithDescriptor.FACTORY);
+        temp.add(SubstringDescriptor.FACTORY);
+        temp.add(TidRunningAggregateDescriptor.FACTORY);
 
         // format-dependent
-        temp.add(new AndDescriptor());
-        temp.add(new OrDescriptor());
-        temp.add(new LikeDescriptor());
-        temp.add(new YearDescriptor());
-        temp.add(new ScanCollectionDescriptor());
-        temp.add(new AnyCollectionMemberDescriptor());
-        temp.add(new ClosedRecordConstructorDescriptor());
-        temp.add(new FieldAccessByIndexDescriptor());
-        temp.add(new FieldAccessByNameDescriptor());
-        temp.add(new GetItemDescriptor());
-        temp.add(new NumericUnaryMinusDescriptor());
-        temp.add(new OpenRecordConstructorDescriptor());
-        temp.add(new OrderedListConstructorDescriptor());
-        temp.add(new UnorderedListConstructorDescriptor());
-        temp.add(new EmbedTypeDescriptor());
+        temp.add(AndDescriptor.FACTORY);
+        temp.add(OrDescriptor.FACTORY);
+        temp.add(LikeDescriptor.FACTORY);
+        temp.add(ScanCollectionDescriptor.FACTORY);
+        temp.add(AnyCollectionMemberDescriptor.FACTORY);
+        temp.add(ClosedRecordConstructorDescriptor.FACTORY);
+        temp.add(FieldAccessByIndexDescriptor.FACTORY);
+        temp.add(FieldAccessByNameDescriptor.FACTORY);
+        temp.add(GetItemDescriptor.FACTORY);
+        temp.add(NumericUnaryMinusDescriptor.FACTORY);
+        temp.add(OpenRecordConstructorDescriptor.FACTORY);
+        temp.add(OrderedListConstructorDescriptor.FACTORY);
+        temp.add(UnorderedListConstructorDescriptor.FACTORY);
+        temp.add(EmbedTypeDescriptor.FACTORY);
 
-        temp.add(new NumericAddDescriptor());
-        temp.add(new NumericDivideDescriptor());
-        temp.add(new NumericMultiplyDescriptor());
-        temp.add(new NumericSubtractDescriptor());
-        temp.add(new IsNullDescriptor());
-        temp.add(new NotDescriptor());
-        temp.add(new LenDescriptor());
-        temp.add(new NonEmptyStreamAggregateDescriptor());
-        temp.add(new RangeDescriptor());
+        temp.add(NumericAddDescriptor.FACTORY);
+        temp.add(NumericDivideDescriptor.FACTORY);
+        temp.add(NumericMultiplyDescriptor.FACTORY);
+        temp.add(NumericSubtractDescriptor.FACTORY);
+        temp.add(NumericModuloDescriptor.FACTORY);
+        temp.add(IsNullDescriptor.FACTORY);
+        temp.add(NotDescriptor.FACTORY);
+        temp.add(LenDescriptor.FACTORY);
+        temp.add(EmptyStreamAggregateDescriptor.FACTORY);
+        temp.add(NonEmptyStreamAggregateDescriptor.FACTORY);
+        temp.add(RangeDescriptor.FACTORY);
+
+        temp.add(NumericAbsDescriptor.FACTORY);
+        temp.add(NumericCeilingDescriptor.FACTORY);
+        temp.add(NumericFloorDescriptor.FACTORY);
+        temp.add(NumericRoundDescriptor.FACTORY);
+        temp.add(NumericRoundHalfToEvenDescriptor.FACTORY);
+        temp.add(NumericRoundHalfToEven2Descriptor.FACTORY);
+        // String functions
+        temp.add(StringEqualDescriptor.FACTORY);
+        temp.add(StringStartWithDescrtiptor.FACTORY);
+        temp.add(StringEndWithDescrtiptor.FACTORY);
+        temp.add(StringMatchesDescriptor.FACTORY);
+        temp.add(StringLowerCaseDescriptor.FACTORY);
+        temp.add(StringMatchesWithFlagDescriptor.FACTORY);
+        temp.add(StringReplaceDescriptor.FACTORY);
+        temp.add(StringReplaceWithFlagsDescriptor.FACTORY);
+        temp.add(StringLengthDescriptor.FACTORY);
+        temp.add(Substring2Descriptor.FACTORY);
+        temp.add(SubstringBeforeDescriptor.FACTORY);
+        temp.add(SubstringAfterDescriptor.FACTORY);
+        temp.add(StringToCodePointDescriptor.FACTORY);
+        temp.add(CodePointToStringDescriptor.FACTORY);
+        temp.add(StringConcatDescriptor.FACTORY);
+        temp.add(StringJoinDescriptor.FACTORY);
 
         // aggregates
-        temp.add(new ListifyAggregateDescriptor());
-        temp.add(new CountAggregateDescriptor());
-        temp.add(new AvgAggregateDescriptor());
-        temp.add(new LocalAvgAggregateDescriptor());
-        temp.add(new GlobalAvgAggregateDescriptor());
-        temp.add(new SumAggregateDescriptor());
-        temp.add(new MaxAggregateDescriptor());
-        temp.add(new MinAggregateDescriptor());
+        temp.add(ListifyAggregateDescriptor.FACTORY);
+        temp.add(CountAggregateDescriptor.FACTORY);
+        temp.add(AvgAggregateDescriptor.FACTORY);
+        temp.add(LocalAvgAggregateDescriptor.FACTORY);
+        temp.add(GlobalAvgAggregateDescriptor.FACTORY);
+        temp.add(SumAggregateDescriptor.FACTORY);
+        temp.add(LocalSumAggregateDescriptor.FACTORY);
+        temp.add(MaxAggregateDescriptor.FACTORY);
+        temp.add(LocalMaxAggregateDescriptor.FACTORY);
+        temp.add(MinAggregateDescriptor.FACTORY);
+        temp.add(LocalMinAggregateDescriptor.FACTORY);
 
         // serializable aggregates
-        temp.add(new SerializableCountAggregateDescriptor());
-        temp.add(new SerializableAvgAggregateDescriptor());
-        temp.add(new SerializableLocalAvgAggregateDescriptor());
-        temp.add(new SerializableGlobalAvgAggregateDescriptor());
-        temp.add(new SerializableSumAggregateDescriptor());
+        temp.add(SerializableCountAggregateDescriptor.FACTORY);
+        temp.add(SerializableAvgAggregateDescriptor.FACTORY);
+        temp.add(SerializableLocalAvgAggregateDescriptor.FACTORY);
+        temp.add(SerializableGlobalAvgAggregateDescriptor.FACTORY);
+        temp.add(SerializableSumAggregateDescriptor.FACTORY);
+        temp.add(SerializableLocalSumAggregateDescriptor.FACTORY);
+
+        // scalar aggregates
+        temp.add(ScalarCountAggregateDescriptor.FACTORY);
+        temp.add(ScalarAvgAggregateDescriptor.FACTORY);
+        temp.add(ScalarSumAggregateDescriptor.FACTORY);
+        temp.add(ScalarMaxAggregateDescriptor.FACTORY);
+        temp.add(ScalarMinAggregateDescriptor.FACTORY);
 
         // new functions - constructors
-        temp.add(new ABooleanConstructorDescriptor());
-        temp.add(new ANullConstructorDescriptor());
-        temp.add(new AStringConstructorDescriptor());
-        temp.add(new AInt8ConstructorDescriptor());
-        temp.add(new AInt16ConstructorDescriptor());
-        temp.add(new AInt32ConstructorDescriptor());
-        temp.add(new AInt64ConstructorDescriptor());
-        temp.add(new AFloatConstructorDescriptor());
-        temp.add(new ADoubleConstructorDescriptor());
-        temp.add(new APointConstructorDescriptor());
-        temp.add(new APoint3DConstructorDescriptor());
-        temp.add(new ALineConstructorDescriptor());
-        temp.add(new APolygonConstructorDescriptor());
-        temp.add(new ACircleConstructorDescriptor());
-        temp.add(new ARectangleConstructorDescriptor());
-        temp.add(new ATimeConstructorDescriptor());
-        temp.add(new ADateConstructorDescriptor());
-        temp.add(new ADateTimeConstructorDescriptor());
-        temp.add(new ADurationConstructorDescriptor());
+        temp.add(ABooleanConstructorDescriptor.FACTORY);
+        temp.add(ANullConstructorDescriptor.FACTORY);
+        temp.add(AStringConstructorDescriptor.FACTORY);
+        temp.add(AInt8ConstructorDescriptor.FACTORY);
+        temp.add(AInt16ConstructorDescriptor.FACTORY);
+        temp.add(AInt32ConstructorDescriptor.FACTORY);
+        temp.add(AInt64ConstructorDescriptor.FACTORY);
+        temp.add(AFloatConstructorDescriptor.FACTORY);
+        temp.add(ADoubleConstructorDescriptor.FACTORY);
+        temp.add(APointConstructorDescriptor.FACTORY);
+        temp.add(APoint3DConstructorDescriptor.FACTORY);
+        temp.add(ALineConstructorDescriptor.FACTORY);
+        temp.add(APolygonConstructorDescriptor.FACTORY);
+        temp.add(ACircleConstructorDescriptor.FACTORY);
+        temp.add(ARectangleConstructorDescriptor.FACTORY);
+        temp.add(ATimeConstructorDescriptor.FACTORY);
+        temp.add(ADateConstructorDescriptor.FACTORY);
+        temp.add(ADateTimeConstructorDescriptor.FACTORY);
+        temp.add(ADurationConstructorDescriptor.FACTORY);
 
         // Spatial
-        temp.add(new CreatePointDescriptor());
-        temp.add(new CreateLineDescriptor());
-        temp.add(new CreatePolygonDescriptor());
-        temp.add(new CreateCircleDescriptor());
-        temp.add(new CreateRectangleDescriptor());
-        temp.add(new SpatialAreaDescriptor());
-        temp.add(new SpatialDistanceDescriptor());
-        temp.add(new SpatialIntersectDescriptor());
-        temp.add(new CreateMBRDescriptor());
-        temp.add(new SpatialCellDescriptor());
+        temp.add(CreatePointDescriptor.FACTORY);
+        temp.add(CreateLineDescriptor.FACTORY);
+        temp.add(CreatePolygonDescriptor.FACTORY);
+        temp.add(CreateCircleDescriptor.FACTORY);
+        temp.add(CreateRectangleDescriptor.FACTORY);
+        temp.add(SpatialAreaDescriptor.FACTORY);
+        temp.add(SpatialDistanceDescriptor.FACTORY);
+        temp.add(SpatialIntersectDescriptor.FACTORY);
+        temp.add(CreateMBRDescriptor.FACTORY);
+        temp.add(SpatialCellDescriptor.FACTORY);
+        temp.add(PointXCoordinateAccessor.FACTORY);
+        temp.add(PointYCoordinateAccessor.FACTORY);
+        temp.add(CircleRadiusAccessor.FACTORY);
+        temp.add(CircleCenterAccessor.FACTORY);
+        temp.add(LineRectanglePolygonAccessor.FACTORY);
 
         // fuzzyjoin function
-        temp.add(new FuzzyEqDescriptor());
-        temp.add(new SubsetCollectionDescriptor());
-        temp.add(new PrefixLenJaccardDescriptor());
+        temp.add(FuzzyEqDescriptor.FACTORY);
+        temp.add(SubsetCollectionDescriptor.FACTORY);
+        temp.add(PrefixLenJaccardDescriptor.FACTORY);
 
-        temp.add(new WordTokensDescriptor());
-        temp.add(new HashedWordTokensDescriptor());
-        temp.add(new CountHashedWordTokensDescriptor());
+        temp.add(WordTokensDescriptor.FACTORY);
+        temp.add(HashedWordTokensDescriptor.FACTORY);
+        temp.add(CountHashedWordTokensDescriptor.FACTORY);
 
-        temp.add(new GramTokensDescriptor());
-        temp.add(new HashedGramTokensDescriptor());
-        temp.add(new CountHashedGramTokensDescriptor());
+        temp.add(GramTokensDescriptor.FACTORY);
+        temp.add(HashedGramTokensDescriptor.FACTORY);
+        temp.add(CountHashedGramTokensDescriptor.FACTORY);
 
-        temp.add(new EditDistanceDescriptor());
-        temp.add(new EditDistanceCheckDescriptor());
+        temp.add(EditDistanceDescriptor.FACTORY);
+        temp.add(EditDistanceCheckDescriptor.FACTORY);
+        temp.add(EditDistanceStringIsFilterable.FACTORY);
+        temp.add(EditDistanceListIsFilterable.FACTORY);
 
-        temp.add(new SimilarityJaccardDescriptor());
-        temp.add(new SimilarityJaccardCheckDescriptor());
-        temp.add(new SimilarityJaccardPrefixDescriptor());
-        temp.add(new SimilarityJaccardPrefixCheckDescriptor());
+        temp.add(SimilarityJaccardDescriptor.FACTORY);
+        temp.add(SimilarityJaccardCheckDescriptor.FACTORY);
+        temp.add(SimilarityJaccardSortedDescriptor.FACTORY);
+        temp.add(SimilarityJaccardSortedCheckDescriptor.FACTORY);
+        temp.add(SimilarityJaccardPrefixDescriptor.FACTORY);
+        temp.add(SimilarityJaccardPrefixCheckDescriptor.FACTORY);
 
-        temp.add(new SwitchCaseDescriptor());
-        temp.add(new RegExpDescriptor());
-        temp.add(new InjectFailureDescriptor());
+        temp.add(SwitchCaseDescriptor.FACTORY);
+        temp.add(RegExpDescriptor.FACTORY);
+        temp.add(InjectFailureDescriptor.FACTORY);
+        temp.add(CastRecordDescriptor.FACTORY);
+        temp.add(NotNullDescriptor.FACTORY);
+
+        // Spatial and temporal type accessors
+        temp.add(TemporalYearAccessor.FACTORY);
+        temp.add(TemporalMonthAccessor.FACTORY);
+        temp.add(TemporalDayAccessor.FACTORY);
+        temp.add(TemporalHourAccessor.FACTORY);
+        temp.add(TemporalMinuteAccessor.FACTORY);
+        temp.add(TemporalSecondAccessor.FACTORY);
+        temp.add(TemporalMillisecondAccessor.FACTORY);
+
+        // Temporal functions
+        temp.add(DateFromUnixTimeInDaysDescriptor.FACTORY);
+        temp.add(DateFromDatetimeDescriptor.FACTORY);
+        temp.add(AddDateDurationDescriptor.FACTORY);
+        temp.add(SubtractDateDescriptor.FACTORY);
+        temp.add(TimeFromUnixTimeInMsDescriptor.FACTORY);
+        temp.add(TimeFromDatetimeDescriptor.FACTORY);
+        temp.add(SubtractTimeDescriptor.FACTORY);
+        temp.add(AddTimeDurationDescriptor.FACTORY);
+        temp.add(DatetimeFromUnixTimeInMsDescriptor.FACTORY);
+        temp.add(DatetimeFromDateAndTimeDescriptor.FACTORY);
+        temp.add(SubtractDatetimeDescriptor.FACTORY);
+        temp.add(AddDatetimeDurationDescriptor.FACTORY);
+        temp.add(CalendarDurationFromDateTimeDescriptor.FACTORY);
+        temp.add(CalendarDuartionFromDateDescriptor.FACTORY);
+        temp.add(AdjustDateTimeForTimeZoneDescriptor.FACTORY);
+        temp.add(AdjustTimeForTimeZoneDescriptor.FACTORY);
+        temp.add(IntervalBeforeDescriptor.FACTORY);
+        temp.add(IntervalAfterDescriptor.FACTORY);
+        temp.add(IntervalMeetsDescriptor.FACTORY);
+        temp.add(IntervalMetByDescriptor.FACTORY);
+        temp.add(IntervalOverlapsDescriptor.FACTORY);
+        temp.add(IntervalOverlappedByDescriptor.FACTORY);
+        temp.add(OverlapDescriptor.FACTORY);
+        temp.add(IntervalStartsDescriptor.FACTORY);
+        temp.add(IntervalStartedByDescriptor.FACTORY);
+        temp.add(IntervalCoversDescriptor.FACTORY);
+        temp.add(IntervalCoveredByDescriptor.FACTORY);
+        temp.add(IntervalEndsDecriptor.FACTORY);
+        temp.add(IntervalEndedByDescriptor.FACTORY);
+        temp.add(CurrentDateDescriptor.FACTORY);
+        temp.add(CurrentTimeDescriptor.FACTORY);
+        temp.add(CurrentDateTimeDescriptor.FACTORY);
+
+        // Interval constructor
+        temp.add(AIntervalFromDateConstructorDescriptor.FACTORY);
+        temp.add(AIntervalFromTimeConstructorDescriptor.FACTORY);
+        temp.add(AIntervalFromDateTimeConstructorDescriptor.FACTORY);
+        temp.add(AIntervalStartFromDateConstructorDescriptor.FACTORY);
+        temp.add(AIntervalStartFromDateTimeConstructorDescriptor.FACTORY);
+        temp.add(AIntervalStartFromTimeConstructorDescriptor.FACTORY);
 
         IFunctionManager mgr = new FunctionManagerImpl();
-        for (IFunctionDescriptor fd : temp) {
-            mgr.registerFunction(fd);
+        for (IFunctionDescriptorFactory fdFactory : temp) {
+            mgr.registerFunction(fdFactory);
         }
         FunctionManagerHolder.setFunctionManager(mgr);
     }
 
     @Override
-    public IBinaryBooleanInspector getBinaryBooleanInspector() {
-        return AqlBinaryBooleanInspectorImpl.INSTANCE;
+    public IBinaryBooleanInspectorFactory getBinaryBooleanInspectorFactory() {
+        return AqlBinaryBooleanInspectorImpl.FACTORY;
     }
 
     @Override
@@ -346,13 +541,13 @@
 
     @SuppressWarnings("unchecked")
     @Override
-    public IEvaluatorFactory getFieldAccessEvaluatorFactory(ARecordType recType, String fldName, int recordColumn)
+    public ICopyEvaluatorFactory getFieldAccessEvaluatorFactory(ARecordType recType, String fldName, int recordColumn)
             throws AlgebricksException {
         String[] names = recType.getFieldNames();
         int n = names.length;
         for (int i = 0; i < n; i++) {
             if (names[i].equals(fldName)) {
-                IEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(recordColumn);
+                ICopyEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(recordColumn);
                 ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
                 DataOutput dos = abvs.getDataOutput();
                 try {
@@ -362,9 +557,9 @@
                 } catch (HyracksDataException e) {
                     throw new AlgebricksException(e);
                 }
-                IEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getBytes(), abvs
-                        .getLength()));
-                IEvaluatorFactory evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory,
+                ICopyEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(),
+                        abvs.getLength()));
+                ICopyEvaluatorFactory evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory,
                         fldIndexEvalFactory, recType);
                 return evalFactory;
             }
@@ -374,11 +569,11 @@
 
     @SuppressWarnings("unchecked")
     @Override
-    public IEvaluatorFactory[] createMBRFactory(ARecordType recType, String fldName, int recordColumn, int dimension)
+    public ICopyEvaluatorFactory[] createMBRFactory(ARecordType recType, String fldName, int recordColumn, int dimension)
             throws AlgebricksException {
-        IEvaluatorFactory evalFactory = getFieldAccessEvaluatorFactory(recType, fldName, recordColumn);
+        ICopyEvaluatorFactory evalFactory = getFieldAccessEvaluatorFactory(recType, fldName, recordColumn);
         int numOfFields = dimension * 2;
-        IEvaluatorFactory[] evalFactories = new IEvaluatorFactory[numOfFields];
+        ICopyEvaluatorFactory[] evalFactories = new ICopyEvaluatorFactory[numOfFields];
 
         ArrayBackedValueStorage abvs1 = new ArrayBackedValueStorage();
         DataOutput dos1 = abvs1.getDataOutput();
@@ -388,8 +583,8 @@
         } catch (HyracksDataException e) {
             throw new AlgebricksException(e);
         }
-        IEvaluatorFactory dimensionEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs1.getBytes(), abvs1
-                .getLength()));
+        ICopyEvaluatorFactory dimensionEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs1.getByteArray(),
+                abvs1.getLength()));
 
         for (int i = 0; i < numOfFields; i++) {
             ArrayBackedValueStorage abvs2 = new ArrayBackedValueStorage();
@@ -400,8 +595,8 @@
             } catch (HyracksDataException e) {
                 throw new AlgebricksException(e);
             }
-            IEvaluatorFactory coordinateEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs2.getBytes(), abvs2
-                    .getLength()));
+            ICopyEvaluatorFactory coordinateEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs2.getByteArray(),
+                    abvs2.getLength()));
 
             evalFactories[i] = new CreateMBREvalFactory(evalFactory, dimensionEvalFactory, coordinateEvalFactory);
         }
@@ -410,13 +605,13 @@
 
     @SuppressWarnings("unchecked")
     @Override
-    public Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioningEvaluatorFactory(
+    public Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioningEvaluatorFactory(
             ARecordType recType, String fldName) throws AlgebricksException {
         String[] names = recType.getFieldNames();
         int n = names.length;
         for (int i = 0; i < n; i++) {
             if (names[i].equals(fldName)) {
-                IEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(
+                ICopyEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(
                         GlobalConfig.DEFAULT_INPUT_DATA_COLUMN);
                 ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
                 DataOutput dos = abvs.getDataOutput();
@@ -427,9 +622,9 @@
                 } catch (HyracksDataException e) {
                     throw new AlgebricksException(e);
                 }
-                IEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getBytes(), abvs
-                        .getLength()));
-                IEvaluatorFactory evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory,
+                ICopyEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(),
+                        abvs.getLength()));
+                ICopyEvaluatorFactory evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory,
                         fldIndexEvalFactory, recType);
                 IFunctionInfo finfoAccess = AsterixBuiltinFunctions
                         .getAsterixFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX);
@@ -438,8 +633,8 @@
                         new MutableObject<ILogicalExpression>(new VariableReferenceExpression(METADATA_DUMMY_VAR)),
                         new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
                                 new AInt32(i)))));
-                return new Triple<IEvaluatorFactory, ScalarFunctionCallExpression, IAType>(evalFactory, partitionFun,
-                        recType.getFieldTypes()[i]);
+                return new Triple<ICopyEvaluatorFactory, ScalarFunctionCallExpression, IAType>(evalFactory,
+                        partitionFun, recType.getFieldTypes()[i]);
             }
         }
         throw new AlgebricksException("Could not find field " + fldName + " in the schema.");
@@ -466,13 +661,22 @@
                 ((ListifyAggregateDescriptor) fd).reset(new AOrderedListType(null, null));
             } else {
                 IAType itemType = (IAType) context.getType(f.getArguments().get(0).getValue());
+                // Convert UNION types into ANY.
+                if (itemType instanceof AUnionType) {
+                    itemType = BuiltinType.ANY;
+                }
                 ((ListifyAggregateDescriptor) fd).reset(new AOrderedListType(itemType, null));
             }
         }
+        if (fd.getIdentifier().equals(AsterixBuiltinFunctions.CAST_RECORD)) {
+            ARecordType rt = (ARecordType) TypeComputerUtilities.getRequiredType((AbstractFunctionCallExpression) expr);
+            ARecordType it = (ARecordType) TypeComputerUtilities.getInputType((AbstractFunctionCallExpression) expr);
+            ((CastRecordDescriptor) fd).reset(rt, it);
+        }
         if (fd.getIdentifier().equals(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR)) {
             ARecordType rt = (ARecordType) context.getType(expr);
-            ((OpenRecordConstructorDescriptor) fd).reset(rt, computeOpenFields((AbstractFunctionCallExpression) expr,
-                    rt));
+            ((OpenRecordConstructorDescriptor) fd).reset(rt,
+                    computeOpenFields((AbstractFunctionCallExpression) expr, rt));
         }
         if (fd.getIdentifier().equals(AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR)) {
             ((ClosedRecordConstructorDescriptor) fd).reset((ARecordType) context.getType(expr));
@@ -539,9 +743,14 @@
         return AqlPrinterFactoryProvider.INSTANCE;
     }
 
+    @Override
+    public IPrinterFactoryProvider getJSONPrinterFactoryProvider() {
+        return AqlJSONPrinterFactoryProvider.INSTANCE;
+    }
+
     @SuppressWarnings("unchecked")
     @Override
-    public IEvaluatorFactory getConstantEvalFactory(IAlgebricksConstantValue value) throws AlgebricksException {
+    public ICopyEvaluatorFactory getConstantEvalFactory(IAlgebricksConstantValue value) throws AlgebricksException {
         IAObject obj = null;
         if (value.isNull()) {
             obj = ANull.NULL;
@@ -560,12 +769,12 @@
         } catch (HyracksDataException e) {
             throw new AlgebricksException(e);
         }
-        return new ConstantEvalFactory(Arrays.copyOf(abvs.getBytes(), abvs.getLength()));
+        return new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(), abvs.getLength()));
     }
 
     @Override
-    public IBinaryIntegerInspector getBinaryIntegerInspector() {
-        return AqlBinaryIntegerInspector.INSTANCE;
+    public IBinaryIntegerInspectorFactory getBinaryIntegerInspectorFactory() {
+        return AqlBinaryIntegerInspector.FACTORY;
     }
 
     @Override
@@ -673,4 +882,9 @@
         return AqlNormalizedKeyComputerFactoryProvider.INSTANCE;
     }
 
+    @Override
+    public IBinaryHashFunctionFamilyProvider getBinaryHashFunctionFamilyProvider() {
+        return AqlBinaryHashFunctionFamilyProvider.INSTANCE;
+    }
+
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
index 0a1faac..45e19c6 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
@@ -1,9 +1,11 @@
 package edu.uci.ics.asterix.runtime.job.listener;
 
+import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
 import edu.uci.ics.hyracks.api.context.IHyracksJobletContext;
 import edu.uci.ics.hyracks.api.job.IJobletEventListener;
@@ -13,13 +15,17 @@
 public class JobEventListenerFactory implements IJobletEventListenerFactory {
 
     private static final long serialVersionUID = 1L;
-    private final long txnId;
+    private final JobId jobId;
     private final boolean transactionalWrite;
 
-    public JobEventListenerFactory(long txnId, boolean transactionalWrite) {
-        this.txnId = txnId;
+    public JobEventListenerFactory(JobId jobId, boolean transactionalWrite) {
+        this.jobId = jobId;
         this.transactionalWrite = transactionalWrite;
     }
+    
+    public JobId getJobId() {
+        return jobId;
+    }
 
     @Override
     public IJobletEventListener createListener(final IHyracksJobletContext jobletContext) {
@@ -28,13 +34,12 @@
             @Override
             public void jobletFinish(JobStatus jobStatus) {
                 try {
-                    TransactionProvider factory = (TransactionProvider) (jobletContext.getApplicationContext()
-                            .getApplicationObject());
-                    ITransactionManager txnManager = factory.getTransactionManager();
-                    TransactionContext txnContext = txnManager.getTransactionContext(txnId);
+                    ITransactionManager txnManager = ((AsterixAppRuntimeContext) jobletContext.getApplicationContext()
+                            .getApplicationObject()).getTransactionSubsystem().getTransactionManager();
+                    TransactionContext txnContext = txnManager.getTransactionContext(jobId);
                     txnContext.setTransactionType(transactionalWrite ? TransactionType.READ_WRITE
                             : TransactionType.READ);
-                    txnManager.completedTransaction(txnContext, !(jobStatus == JobStatus.FAILURE));
+                    txnManager.completedTransaction(txnContext, new DatasetId(-1), -1, !(jobStatus == JobStatus.FAILURE));
                 } catch (ACIDException e) {
                     throw new Error(e);
                 }
@@ -42,7 +47,12 @@
 
             @Override
             public void jobletStart() {
-
+                try {
+                    ((AsterixAppRuntimeContext) jobletContext.getApplicationContext().getApplicationObject())
+                            .getTransactionSubsystem().getTransactionManager().getTransactionContext(jobId);
+                } catch (ACIDException e) {
+                    throw new Error(e);
+                }
             }
 
         };
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/ADMDataParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/ADMDataParser.java
new file mode 100644
index 0000000..b32110b
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/ADMDataParser.java
@@ -0,0 +1,1024 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.operators.file;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayDeque;
+import java.util.BitSet;
+import java.util.List;
+import java.util.Queue;
+
+import edu.uci.ics.asterix.runtime.operators.file.adm.AdmLexer;
+import edu.uci.ics.asterix.runtime.operators.file.adm.AdmLexerException;
+import edu.uci.ics.asterix.builders.IARecordBuilder;
+import edu.uci.ics.asterix.builders.IAsterixListBuilder;
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.builders.UnorderedListBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AIntervalSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APoint3DSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.AUnionType;
+import edu.uci.ics.asterix.om.types.AUnorderedListType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+
+/**
+ * Parser for ADM formatted data.
+ */
+public class ADMDataParser extends AbstractDataParser implements IDataParser {
+
+    protected AdmLexer admLexer;
+    protected ARecordType recordType;
+    protected boolean datasetRec;
+
+    private int nullableFieldId = 0;
+
+    private Queue<ArrayBackedValueStorage> baaosPool = new ArrayDeque<ArrayBackedValueStorage>();
+    private Queue<IARecordBuilder> recordBuilderPool = new ArrayDeque<IARecordBuilder>();
+    private Queue<IAsterixListBuilder> orderedListBuilderPool = new ArrayDeque<IAsterixListBuilder>();
+    private Queue<IAsterixListBuilder> unorderedListBuilderPool = new ArrayDeque<IAsterixListBuilder>();
+
+    private String mismatchErrorMessage = "Mismatch Type, expecting a value of type ";
+
+    @Override
+    public boolean parse(DataOutput out) throws HyracksDataException {
+        try {
+            return parseAdmInstance((IAType) recordType, datasetRec, out);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void initialize(InputStream in, ARecordType recordType, boolean datasetRec) throws AsterixException {
+        this.recordType = recordType;
+        this.datasetRec = datasetRec;
+        try {
+            admLexer = new AdmLexer(new java.io.InputStreamReader(in));
+        } catch (IOException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    protected boolean parseAdmInstance(IAType objectType, boolean datasetRec, DataOutput out) throws AsterixException,
+            IOException {
+        int token;
+        try {
+            token = admLexer.next();
+        } catch (AdmLexerException e) {
+            throw new AsterixException(e);
+        }
+        if (token == AdmLexer.TOKEN_EOF) {
+            return false;
+        } else {
+            admFromLexerStream(token, objectType, out, datasetRec);
+            return true;
+        }
+    }
+
+    private void admFromLexerStream(int token, IAType objectType, DataOutput out, Boolean datasetRec)
+            throws AsterixException, IOException {
+
+        switch (token) {
+            case AdmLexer.TOKEN_NULL_LITERAL: {
+                if (checkType(ATypeTag.NULL, objectType, out)) {
+                    nullSerde.serialize(ANull.NULL, out);
+                } else
+                    throw new AsterixException(" This field can not be null ");
+                break;
+            }
+            case AdmLexer.TOKEN_TRUE_LITERAL: {
+                if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
+                    booleanSerde.serialize(ABoolean.TRUE, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_BOOLEAN_CONS: {
+                parseConstructor(ATypeTag.BOOLEAN, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_FALSE_LITERAL: {
+                if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
+                    booleanSerde.serialize(ABoolean.FALSE, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_DOUBLE_LITERAL: {
+                if (checkType(ATypeTag.DOUBLE, objectType, out)) {
+                    aDouble.setValue(Double.parseDouble(admLexer.getLastTokenImage()));
+                    doubleSerde.serialize(aDouble, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_DOUBLE_CONS: {
+                parseConstructor(ATypeTag.DOUBLE, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_FLOAT_LITERAL: {
+                if (checkType(ATypeTag.FLOAT, objectType, out)) {
+                    aFloat.setValue(Float.parseFloat(admLexer.getLastTokenImage()));
+                    floatSerde.serialize(aFloat, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_FLOAT_CONS: {
+                parseConstructor(ATypeTag.FLOAT, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_INT8_LITERAL: {
+                if (checkType(ATypeTag.INT8, objectType, out)) {
+                    parseInt8(admLexer.getLastTokenImage(), out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_INT8_CONS: {
+                parseConstructor(ATypeTag.INT8, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_INT16_LITERAL: {
+                if (checkType(ATypeTag.INT16, objectType, out)) {
+                    parseInt16(admLexer.getLastTokenImage(), out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_INT16_CONS: {
+                parseConstructor(ATypeTag.INT16, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_INT_LITERAL:
+            case AdmLexer.TOKEN_INT32_LITERAL: {
+                if (checkType(ATypeTag.INT32, objectType, out)) {
+                    parseInt32(admLexer.getLastTokenImage(), out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_INT32_CONS: {
+                parseConstructor(ATypeTag.INT32, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_INT64_LITERAL: {
+                if (checkType(ATypeTag.INT64, objectType, out)) {
+                    parseInt64(admLexer.getLastTokenImage(), out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_INT64_CONS: {
+                parseConstructor(ATypeTag.INT64, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_STRING_LITERAL: {
+                if (checkType(ATypeTag.STRING, objectType, out)) {
+                    aString.setValue(admLexer.getLastTokenImage().substring(1,
+                            admLexer.getLastTokenImage().length() - 1));
+                    stringSerde.serialize(aString, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+                break;
+            }
+            case AdmLexer.TOKEN_STRING_CONS: {
+                parseConstructor(ATypeTag.STRING, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_DATE_CONS: {
+                parseConstructor(ATypeTag.DATE, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_TIME_CONS: {
+                parseConstructor(ATypeTag.TIME, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_DATETIME_CONS: {
+                parseConstructor(ATypeTag.DATETIME, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_INTERVAL_DATE_CONS: {
+                try {
+                    if (checkType(ATypeTag.INTERVAL, objectType, out)) {
+                        if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_OPEN) {
+                            if (admLexer.next() == AdmLexer.TOKEN_STRING_LITERAL) {
+                                AIntervalSerializerDeserializer.parseDate(admLexer.getLastTokenImage(), out);
+
+                                if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_CLOSE) {
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                } catch (AdmLexerException ex) {
+                    throw new AsterixException(ex);
+                }
+                throw new AsterixException("Wrong interval data parsing for date interval.");
+            }
+            case AdmLexer.TOKEN_INTERVAL_TIME_CONS: {
+                try {
+                    if (checkType(ATypeTag.INTERVAL, objectType, out)) {
+                        if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_OPEN) {
+                            if (admLexer.next() == AdmLexer.TOKEN_STRING_LITERAL) {
+                                AIntervalSerializerDeserializer.parseTime(admLexer.getLastTokenImage(), out);
+
+                                if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_CLOSE) {
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                } catch (AdmLexerException ex) {
+                    throw new AsterixException(ex);
+                }
+                throw new AsterixException("Wrong interval data parsing for time interval.");
+            }
+            case AdmLexer.TOKEN_INTERVAL_DATETIME_CONS: {
+                try {
+                    if (checkType(ATypeTag.INTERVAL, objectType, out)) {
+                        if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_OPEN) {
+                            if (admLexer.next() == AdmLexer.TOKEN_STRING_LITERAL) {
+                                AIntervalSerializerDeserializer.parseDatetime(admLexer.getLastTokenImage(), out);
+
+                                if (admLexer.next() == AdmLexer.TOKEN_CONSTRUCTOR_CLOSE) {
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                } catch (AdmLexerException ex) {
+                    throw new AsterixException(ex);
+                }
+                throw new AsterixException("Wrong interval data parsing for datetime interval.");
+            }
+            case AdmLexer.TOKEN_DURATION_CONS: {
+                parseConstructor(ATypeTag.DURATION, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_POINT_CONS: {
+                parseConstructor(ATypeTag.POINT, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_POINT3D_CONS: {
+                parseConstructor(ATypeTag.POINT3D, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_CIRCLE_CONS: {
+                parseConstructor(ATypeTag.CIRCLE, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_RECTANGLE_CONS: {
+                parseConstructor(ATypeTag.RECTANGLE, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_LINE_CONS: {
+                parseConstructor(ATypeTag.LINE, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_POLYGON_CONS: {
+                parseConstructor(ATypeTag.POLYGON, objectType, out);
+                break;
+            }
+            case AdmLexer.TOKEN_START_UNORDERED_LIST: {
+                if (checkType(ATypeTag.UNORDEREDLIST, objectType, out)) {
+                    objectType = getComplexType(objectType, ATypeTag.UNORDEREDLIST);
+                    parseUnorderedList((AUnorderedListType) objectType, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
+                break;
+            }
+
+            case AdmLexer.TOKEN_START_ORDERED_LIST: {
+                if (checkType(ATypeTag.ORDEREDLIST, objectType, out)) {
+                    objectType = getComplexType(objectType, ATypeTag.ORDEREDLIST);
+                    parseOrderedList((AOrderedListType) objectType, out);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
+                break;
+            }
+            case AdmLexer.TOKEN_START_RECORD: {
+                if (checkType(ATypeTag.RECORD, objectType, out)) {
+                    objectType = getComplexType(objectType, ATypeTag.RECORD);
+                    parseRecord((ARecordType) objectType, out, datasetRec);
+                } else
+                    throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
+                break;
+            }
+            case AdmLexer.TOKEN_EOF: {
+                break;
+            }
+            default: {
+                throw new AsterixException("Unexpected ADM token kind: " + AdmLexer.tokenKindToString(token) + ".");
+            }
+        }
+    }
+
+    private void parseDatetime(String datetime, DataOutput out) throws AsterixException, IOException {
+        try {
+            ADateTimeSerializerDeserializer.parse(datetime, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseDuration(String duration, DataOutput out) throws AsterixException {
+        try {
+            ADurationSerializerDeserializer.parse(duration, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    private IAType getComplexType(IAType aObjectType, ATypeTag tag) {
+
+        if (aObjectType == null) {
+            return null;
+        }
+
+        if (aObjectType.getTypeTag() == tag)
+            return aObjectType;
+
+        if (aObjectType.getTypeTag() == ATypeTag.UNION) {
+            unionList = ((AUnionType) aObjectType).getUnionList();
+            for (int i = 0; i < unionList.size(); i++)
+                if (unionList.get(i).getTypeTag() == tag) {
+                    return unionList.get(i);
+                }
+        }
+        return null; // wont get here
+    }
+
+    List<IAType> unionList;
+
+    private boolean checkType(ATypeTag expectedTypeTag, IAType aObjectType, DataOutput out) throws IOException {
+
+        if (aObjectType == null)
+            return true;
+
+        if (aObjectType.getTypeTag() != ATypeTag.UNION) {
+            if (expectedTypeTag == aObjectType.getTypeTag())
+                return true;
+        } else { // union
+            unionList = ((AUnionType) aObjectType).getUnionList();
+            for (int i = 0; i < unionList.size(); i++)
+                if (unionList.get(i).getTypeTag() == expectedTypeTag)
+                    return true;
+        }
+        return false;
+    }
+
+    private void parseRecord(ARecordType recType, DataOutput out, Boolean datasetRec) throws IOException,
+            AsterixException {
+
+        ArrayBackedValueStorage fieldValueBuffer = getTempBuffer();
+        ArrayBackedValueStorage fieldNameBuffer = getTempBuffer();
+        IARecordBuilder recBuilder = getRecordBuilder();
+
+        // Boolean[] nulls = null;
+        BitSet nulls = null;
+        if (datasetRec) {
+            if (recType != null) {
+                nulls = new BitSet(recType.getFieldNames().length);
+                recBuilder.reset(recType);
+            } else
+                recBuilder.reset(null);
+        } else if (recType != null) {
+            nulls = new BitSet(recType.getFieldNames().length);
+            recBuilder.reset(recType);
+        } else
+            recBuilder.reset(null);
+
+        recBuilder.init();
+        int token;
+        boolean inRecord = true;
+        boolean expectingRecordField = false;
+        boolean first = true;
+
+        Boolean openRecordField = false;
+        int fieldId = 0;
+        IAType fieldType = null;
+        do {
+            token = nextToken();
+            switch (token) {
+                case AdmLexer.TOKEN_END_RECORD: {
+                    if (expectingRecordField) {
+                        throw new AsterixException("Found END_RECORD while expecting a record field.");
+                    }
+                    inRecord = false;
+                    break;
+                }
+                case AdmLexer.TOKEN_STRING_LITERAL: {
+                    // we've read the name of the field
+                    // now read the content
+                    fieldNameBuffer.reset();
+                    fieldValueBuffer.reset();
+                    expectingRecordField = false;
+
+                    if (recType != null) {
+                        String fldName = admLexer.getLastTokenImage().substring(1,
+                                admLexer.getLastTokenImage().length() - 1);
+                        fieldId = recBuilder.getFieldId(fldName);
+                        if (fieldId < 0 && !recType.isOpen()) {
+                            throw new AsterixException("This record is closed, you can not add extra fields !!");
+                        } else if (fieldId < 0 && recType.isOpen()) {
+                            aStringFieldName.setValue(admLexer.getLastTokenImage().substring(1,
+                                    admLexer.getLastTokenImage().length() - 1));
+                            stringSerde.serialize(aStringFieldName, fieldNameBuffer.getDataOutput());
+                            openRecordField = true;
+                            fieldType = null;
+                        } else {
+                            // a closed field
+                            nulls.set(fieldId);
+                            fieldType = recType.getFieldTypes()[fieldId];
+                            openRecordField = false;
+                        }
+                    } else {
+                        aStringFieldName.setValue(admLexer.getLastTokenImage().substring(1,
+                                admLexer.getLastTokenImage().length() - 1));
+                        stringSerde.serialize(aStringFieldName, fieldNameBuffer.getDataOutput());
+                        openRecordField = true;
+                        fieldType = null;
+                    }
+
+                    token = nextToken();
+                    if (token != AdmLexer.TOKEN_COLON) {
+                        throw new AsterixException("Unexpected ADM token kind: " + AdmLexer.tokenKindToString(token)
+                                + " while expecting \":\".");
+                    }
+
+                    token = nextToken();
+                    this.admFromLexerStream(token, fieldType, fieldValueBuffer.getDataOutput(), false);
+                    if (openRecordField) {
+                        if (fieldValueBuffer.getByteArray()[0] != ATypeTag.NULL.serialize())
+                            recBuilder.addField(fieldNameBuffer, fieldValueBuffer);
+                    } else if (recType.getFieldTypes()[fieldId].getTypeTag() == ATypeTag.UNION) {
+                        if (NonTaggedFormatUtil.isOptionalField((AUnionType) recType.getFieldTypes()[fieldId])) {
+                            if (fieldValueBuffer.getByteArray()[0] != ATypeTag.NULL.serialize()) {
+                                recBuilder.addField(fieldId, fieldValueBuffer);
+                            }
+                        }
+                    } else {
+                        recBuilder.addField(fieldId, fieldValueBuffer);
+                    }
+
+                    break;
+                }
+                case AdmLexer.TOKEN_COMMA: {
+                    if (first) {
+                        throw new AsterixException("Found COMMA before any record field.");
+                    }
+                    if (expectingRecordField) {
+                        throw new AsterixException("Found COMMA while expecting a record field.");
+                    }
+                    expectingRecordField = true;
+                    break;
+                }
+                default: {
+                    throw new AsterixException("Unexpected ADM token kind: " + AdmLexer.tokenKindToString(token)
+                            + " while parsing record fields.");
+                }
+            }
+            first = false;
+        } while (inRecord);
+
+        if (recType != null) {
+            nullableFieldId = checkNullConstraints(recType, nulls);
+            if (nullableFieldId != -1)
+                throw new AsterixException("Field " + nullableFieldId + " can not be null");
+        }
+        recBuilder.write(out, true);
+        returnRecordBuilder(recBuilder);
+        returnTempBuffer(fieldNameBuffer);
+        returnTempBuffer(fieldValueBuffer);
+    }
+
+    private int checkNullConstraints(ARecordType recType, BitSet nulls) {
+
+        boolean isNull = false;
+        for (int i = 0; i < recType.getFieldTypes().length; i++)
+            if (nulls.get(i) == false) {
+                IAType type = recType.getFieldTypes()[i];
+                if (type.getTypeTag() != ATypeTag.NULL && type.getTypeTag() != ATypeTag.UNION)
+                    return i;
+
+                if (type.getTypeTag() == ATypeTag.UNION) { // union
+                    unionList = ((AUnionType) type).getUnionList();
+                    for (int j = 0; j < unionList.size(); j++)
+                        if (unionList.get(j).getTypeTag() == ATypeTag.NULL) {
+                            isNull = true;
+                            break;
+                        }
+                    if (!isNull)
+                        return i;
+                }
+            }
+        return -1;
+    }
+
+    private void parseOrderedList(AOrderedListType oltype, DataOutput out) throws IOException, AsterixException {
+
+        ArrayBackedValueStorage itemBuffer = getTempBuffer();
+        OrderedListBuilder orderedListBuilder = (OrderedListBuilder) getOrderedListBuilder();
+
+        IAType itemType = null;
+        if (oltype != null)
+            itemType = oltype.getItemType();
+        orderedListBuilder.reset(oltype);
+
+        int token;
+        boolean inList = true;
+        boolean expectingListItem = false;
+        boolean first = true;
+        do {
+            token = nextToken();
+            if (token == AdmLexer.TOKEN_END_ORDERED_LIST) {
+                if (expectingListItem) {
+                    throw new AsterixException("Found END_COLLECTION while expecting a list item.");
+                }
+                inList = false;
+            } else if (token == AdmLexer.TOKEN_COMMA) {
+                if (first) {
+                    throw new AsterixException("Found COMMA before any list item.");
+                }
+                if (expectingListItem) {
+                    throw new AsterixException("Found COMMA while expecting a list item.");
+                }
+                expectingListItem = true;
+            } else {
+                expectingListItem = false;
+                itemBuffer.reset();
+
+                admFromLexerStream(token, itemType, itemBuffer.getDataOutput(), false);
+                orderedListBuilder.addItem(itemBuffer);
+            }
+            first = false;
+        } while (inList);
+        orderedListBuilder.write(out, true);
+        returnOrderedListBuilder(orderedListBuilder);
+        returnTempBuffer(itemBuffer);
+    }
+
+    private void parseUnorderedList(AUnorderedListType uoltype, DataOutput out) throws IOException, AsterixException {
+
+        ArrayBackedValueStorage itemBuffer = getTempBuffer();
+        UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) getUnorderedListBuilder();
+
+        IAType itemType = null;
+
+        if (uoltype != null)
+            itemType = uoltype.getItemType();
+        unorderedListBuilder.reset(uoltype);
+
+        int token;
+        boolean inList = true;
+        boolean expectingListItem = false;
+        boolean first = true;
+        do {
+            token = nextToken();
+            if (token == AdmLexer.TOKEN_END_UNORDERED_LIST) {
+                if (expectingListItem) {
+                    throw new AsterixException("Found END_COLLECTION while expecting a list item.");
+                }
+                inList = false;
+            } else if (token == AdmLexer.TOKEN_COMMA) {
+                if (first) {
+                    throw new AsterixException("Found COMMA before any list item.");
+                }
+                if (expectingListItem) {
+                    throw new AsterixException("Found COMMA while expecting a list item.");
+                }
+                expectingListItem = true;
+            } else {
+                expectingListItem = false;
+                itemBuffer.reset();
+                admFromLexerStream(token, itemType, itemBuffer.getDataOutput(), false);
+                unorderedListBuilder.addItem(itemBuffer);
+            }
+            first = false;
+        } while (inList);
+        unorderedListBuilder.write(out, true);
+        returnUnorderedListBuilder(unorderedListBuilder);
+        returnTempBuffer(itemBuffer);
+    }
+
+    private int nextToken() throws AsterixException {
+        try {
+            return admLexer.next();
+        } catch (AdmLexerException e) {
+            throw new AsterixException(e);
+        } catch (IOException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private IARecordBuilder getRecordBuilder() {
+        RecordBuilder recBuilder = (RecordBuilder) recordBuilderPool.poll();
+        if (recBuilder != null)
+            return recBuilder;
+        else
+            return new RecordBuilder();
+    }
+
+    private void returnRecordBuilder(IARecordBuilder recBuilder) {
+        this.recordBuilderPool.add(recBuilder);
+    }
+
+    private IAsterixListBuilder getOrderedListBuilder() {
+        OrderedListBuilder orderedListBuilder = (OrderedListBuilder) orderedListBuilderPool.poll();
+        if (orderedListBuilder != null)
+            return orderedListBuilder;
+        else
+            return new OrderedListBuilder();
+    }
+
+    private void returnOrderedListBuilder(IAsterixListBuilder orderedListBuilder) {
+        this.orderedListBuilderPool.add(orderedListBuilder);
+    }
+
+    private IAsterixListBuilder getUnorderedListBuilder() {
+        UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) unorderedListBuilderPool.poll();
+        if (unorderedListBuilder != null)
+            return unorderedListBuilder;
+        else
+            return new UnorderedListBuilder();
+    }
+
+    private void returnUnorderedListBuilder(IAsterixListBuilder unorderedListBuilder) {
+        this.unorderedListBuilderPool.add(unorderedListBuilder);
+    }
+
+    private ArrayBackedValueStorage getTempBuffer() {
+        ArrayBackedValueStorage tmpBaaos = baaosPool.poll();
+        if (tmpBaaos != null) {
+            return tmpBaaos;
+        } else {
+            return new ArrayBackedValueStorage();
+        }
+    }
+
+    private void returnTempBuffer(ArrayBackedValueStorage tempBaaos) {
+        baaosPool.add(tempBaaos);
+    }
+
+    private void parseConstructor(ATypeTag typeTag, IAType objectType, DataOutput out) throws AsterixException {
+        try {
+            int token = admLexer.next();
+            if (token == AdmLexer.TOKEN_CONSTRUCTOR_OPEN) {
+                if (checkType(typeTag, objectType, out)) {
+                    token = admLexer.next();
+                    if (token == AdmLexer.TOKEN_STRING_LITERAL) {
+                        switch (typeTag) {
+                            case BOOLEAN:
+                                parseBoolean(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case INT8:
+                                parseInt8(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case INT16:
+                                parseInt16(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case INT32:
+                                parseInt32(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case INT64:
+                                parseInt64(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case FLOAT:
+                                aFloat.setValue(Float.parseFloat(admLexer.getLastTokenImage().substring(1,
+                                        admLexer.getLastTokenImage().length() - 1)));
+                                floatSerde.serialize(aFloat, out);
+                                break;
+                            case DOUBLE:
+                                aDouble.setValue(Double.parseDouble(admLexer.getLastTokenImage().substring(1,
+                                        admLexer.getLastTokenImage().length() - 1)));
+                                doubleSerde.serialize(aDouble, out);
+                                break;
+                            case STRING:
+                                aString.setValue(admLexer.getLastTokenImage().substring(1,
+                                        admLexer.getLastTokenImage().length() - 1));
+                                stringSerde.serialize(aString, out);
+                                break;
+                            case TIME:
+                                parseTime(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case DATE:
+                                parseDate(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case DATETIME:
+                                parseDatetime(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case DURATION:
+                                parseDuration(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case POINT:
+                                parsePoint(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case POINT3D:
+                                parsePoint3d(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case CIRCLE:
+                                parseCircle(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case RECTANGLE:
+                                parseRectangle(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case LINE:
+                                parseLine(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            case POLYGON:
+                                parsePolygon(
+                                        admLexer.getLastTokenImage().substring(1,
+                                                admLexer.getLastTokenImage().length() - 1), out);
+                                break;
+                            default:
+                                throw new AsterixException("Missing deserializer method for constructor: "
+                                        + AdmLexer.tokenKindToString(token) + ".");
+
+                        }
+                        token = admLexer.next();
+                        if (token == AdmLexer.TOKEN_CONSTRUCTOR_CLOSE)
+                            return;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
+    }
+
+    private void parseBoolean(String bool, DataOutput out) throws AsterixException {
+        String errorMessage = "This can not be an instance of boolean";
+        try {
+            if (bool.equals("true"))
+                booleanSerde.serialize(ABoolean.TRUE, out);
+            else if (bool.equals("false"))
+                booleanSerde.serialize(ABoolean.FALSE, out);
+            else
+                throw new AsterixException(errorMessage);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(errorMessage);
+        }
+    }
+
+    private void parseInt8(String int8, DataOutput out) throws AsterixException {
+        String errorMessage = "This can not be an instance of int8";
+        try {
+            boolean positive = true;
+            byte value = 0;
+            int offset = 0;
+
+            if (int8.charAt(offset) == '+')
+                offset++;
+            else if (int8.charAt(offset) == '-') {
+                offset++;
+                positive = false;
+            }
+            for (; offset < int8.length(); offset++) {
+                if (int8.charAt(offset) >= '0' && int8.charAt(offset) <= '9')
+                    value = (byte) (value * 10 + int8.charAt(offset) - '0');
+                else if (int8.charAt(offset) == 'i' && int8.charAt(offset + 1) == '8' && offset + 2 == int8.length())
+                    break;
+                else
+                    throw new AsterixException(errorMessage);
+            }
+            if (value < 0)
+                throw new AsterixException(errorMessage);
+            if (value > 0 && !positive)
+                value *= -1;
+            aInt8.setValue(value);
+            int8Serde.serialize(aInt8, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(errorMessage);
+        }
+    }
+
+    private void parseInt16(String int16, DataOutput out) throws AsterixException {
+        String errorMessage = "This can not be an instance of int16";
+        try {
+            boolean positive = true;
+            short value = 0;
+            int offset = 0;
+
+            if (int16.charAt(offset) == '+')
+                offset++;
+            else if (int16.charAt(offset) == '-') {
+                offset++;
+                positive = false;
+            }
+            for (; offset < int16.length(); offset++) {
+                if (int16.charAt(offset) >= '0' && int16.charAt(offset) <= '9')
+                    value = (short) (value * 10 + int16.charAt(offset) - '0');
+                else if (int16.charAt(offset) == 'i' && int16.charAt(offset + 1) == '1'
+                        && int16.charAt(offset + 2) == '6' && offset + 3 == int16.length())
+                    break;
+                else
+                    throw new AsterixException(errorMessage);
+            }
+            if (value < 0)
+                throw new AsterixException(errorMessage);
+            if (value > 0 && !positive)
+                value *= -1;
+            aInt16.setValue(value);
+            int16Serde.serialize(aInt16, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(errorMessage);
+        }
+    }
+
+    private void parseInt32(String int32, DataOutput out) throws AsterixException {
+
+        String errorMessage = "This can not be an instance of int32";
+        try {
+            boolean positive = true;
+            int value = 0;
+            int offset = 0;
+
+            if (int32.charAt(offset) == '+')
+                offset++;
+            else if (int32.charAt(offset) == '-') {
+                offset++;
+                positive = false;
+            }
+            for (; offset < int32.length(); offset++) {
+                if (int32.charAt(offset) >= '0' && int32.charAt(offset) <= '9')
+                    value = (value * 10 + int32.charAt(offset) - '0');
+                else if (int32.charAt(offset) == 'i' && int32.charAt(offset + 1) == '3'
+                        && int32.charAt(offset + 2) == '2' && offset + 3 == int32.length())
+                    break;
+                else
+                    throw new AsterixException(errorMessage);
+            }
+            if (value < 0)
+                throw new AsterixException(errorMessage);
+            if (value > 0 && !positive)
+                value *= -1;
+
+            aInt32.setValue(value);
+            int32Serde.serialize(aInt32, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(errorMessage);
+        }
+    }
+
+    private void parseInt64(String int64, DataOutput out) throws AsterixException {
+        String errorMessage = "This can not be an instance of int64";
+        try {
+            boolean positive = true;
+            long value = 0;
+            int offset = 0;
+
+            if (int64.charAt(offset) == '+')
+                offset++;
+            else if (int64.charAt(offset) == '-') {
+                offset++;
+                positive = false;
+            }
+            for (; offset < int64.length(); offset++) {
+                if (int64.charAt(offset) >= '0' && int64.charAt(offset) <= '9')
+                    value = (value * 10 + int64.charAt(offset) - '0');
+                else if (int64.charAt(offset) == 'i' && int64.charAt(offset + 1) == '6'
+                        && int64.charAt(offset + 2) == '4' && offset + 3 == int64.length())
+                    break;
+                else
+                    throw new AsterixException(errorMessage);
+            }
+            if (value < 0)
+                throw new AsterixException(errorMessage);
+            if (value > 0 && !positive)
+                value *= -1;
+
+            aInt64.setValue(value);
+            int64Serde.serialize(aInt64, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(errorMessage);
+        }
+    }
+
+    private void parsePoint(String point, DataOutput out) throws AsterixException {
+        try {
+            APointSerializerDeserializer.parse(point, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parsePoint3d(String point3d, DataOutput out) throws AsterixException {
+        try {
+            APoint3DSerializerDeserializer.parse(point3d, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseCircle(String circle, DataOutput out) throws AsterixException {
+        try {
+            ACircleSerializerDeserializer.parse(circle, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseRectangle(String rectangle, DataOutput out) throws AsterixException {
+        try {
+            ARectangleSerializerDeserializer.parse(rectangle, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseLine(String line, DataOutput out) throws AsterixException {
+        try {
+            ALineSerializerDeserializer.parse(line, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parsePolygon(String polygon, DataOutput out) throws AsterixException, IOException {
+        try {
+            APolygonSerializerDeserializer.parse(polygon, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseTime(String time, DataOutput out) throws AsterixException {
+        try {
+            ATimeSerializerDeserializer.parse(time, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+    private void parseDate(String date, DataOutput out) throws AsterixException, IOException {
+        try {
+            ADateSerializerDeserializer.parse(date, out);
+        } catch (HyracksDataException e) {
+            throw new AsterixException(e);
+        }
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java
new file mode 100644
index 0000000..fc2d7ca
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.operators.file;
+
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ABoolean;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AFloat;
+import edu.uci.ics.asterix.om.base.AInt16;
+import edu.uci.ics.asterix.om.base.AInt32;
+import edu.uci.ics.asterix.om.base.AInt64;
+import edu.uci.ics.asterix.om.base.AInt8;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+
+/**
+ * Base class for data parsers. Includes the common set of definitions for
+ * serializers/deserializers for built-in ADM types.
+ */
+public abstract class AbstractDataParser implements IDataParser {
+
+	protected AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+	protected AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+	protected AMutableInt32 aInt32 = new AMutableInt32(0);
+	protected AMutableInt64 aInt64 = new AMutableInt64(0);
+	protected AMutableDouble aDouble = new AMutableDouble(0);
+	protected AMutableFloat aFloat = new AMutableFloat(0);
+	protected AMutableString aString = new AMutableString("");
+	protected AMutableString aStringFieldName = new AMutableString("");
+
+	// Serializers
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.ADOUBLE);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.ASTRING);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.AFLOAT);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AInt8> int8Serde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.AINT8);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AInt16> int16Serde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.AINT16);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.AINT32);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<AInt64> int64Serde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.AINT64);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.ABOOLEAN);
+	@SuppressWarnings("unchecked")
+	protected ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+			.getSerializerDeserializer(BuiltinType.ANULL);
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
index 6e83689..cb05529 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractTupleParser.java
@@ -1,72 +1,91 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.operators.file;
 
+import java.io.DataOutput;
+import java.io.IOException;
 import java.io.InputStream;
+import java.nio.ByteBuffer;
 
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.AMutableString;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
 
+/**
+ * An Abstract class implementation for ITupleParser. It provides common
+ * functionality involved in parsing data in an external format and packing
+ * frames with formed tuples.
+ */
 public abstract class AbstractTupleParser implements ITupleParser {
 
-	// Mutable Types..
-	protected AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-	protected AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-	protected AMutableInt32 aInt32 = new AMutableInt32(0);
-	protected AMutableInt64 aInt64 = new AMutableInt64(0);
-	protected AMutableDouble aDouble = new AMutableDouble(0);
-	protected AMutableFloat aFloat = new AMutableFloat(0);
-	protected AMutableString aString = new AMutableString("");
-	protected AMutableString aStringFieldName = new AMutableString("");
+    protected ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
+    protected DataOutput dos = tb.getDataOutput();
+    protected final FrameTupleAppender appender;
+    protected final ByteBuffer frame;
+    protected final ARecordType recType;
+    protected final IHyracksTaskContext ctx;
 
-	// Serializers
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ADOUBLE);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ASTRING);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AFLOAT);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt8> int8Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT8);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt16> int16Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT16);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT32);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt64> int64Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT64);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ABOOLEAN);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ANULL);
+    public AbstractTupleParser(IHyracksTaskContext ctx, ARecordType recType) {
+        appender = new FrameTupleAppender(ctx.getFrameSize());
+        frame = ctx.allocateFrame();
+        this.recType = recType;
+        this.ctx = ctx;
+    }
 
-	
-	@Override
-	public abstract  void parse(InputStream in, IFrameWriter writer) throws HyracksDataException;
+    public abstract IDataParser getDataParser();
+
+    @Override
+    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
+
+        appender.reset(frame, true);
+        IDataParser parser = getDataParser();
+        try {
+            parser.initialize(in, recType, true);
+            while (true) {
+                tb.reset();
+                if (!parser.parse(tb.getDataOutput())) {
+                    break;
+                }
+                tb.addFieldEndOffset();
+                addTupleToFrame(writer);
+            }
+            if (appender.getTupleCount() > 0) {
+                FrameUtils.flushFrame(frame, writer);
+            }
+        } catch (AsterixException ae) {
+            throw new HyracksDataException(ae);
+        } catch (IOException ioe) {
+            throw new HyracksDataException(ioe);
+        }
+    }
+
+    protected void addTupleToFrame(IFrameWriter writer) throws HyracksDataException {
+        if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+            FrameUtils.flushFrame(frame, writer);
+            appender.reset(frame, true);
+            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+                throw new IllegalStateException();
+            }
+        }
+
+    }
+
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmSchemafullRecordParserFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmSchemafullRecordParserFactory.java
index 46d1ba3..a9287c8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmSchemafullRecordParserFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmSchemafullRecordParserFactory.java
@@ -1,71 +1,28 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.operators.file;
 
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.util.ArrayDeque;
-import java.util.BitSet;
-import java.util.List;
-import java.util.Queue;
-
-import edu.uci.ics.asterix.adm.parser.nontagged.AdmLexer;
-import edu.uci.ics.asterix.adm.parser.nontagged.AdmLexerConstants;
-import edu.uci.ics.asterix.adm.parser.nontagged.ParseException;
-import edu.uci.ics.asterix.adm.parser.nontagged.Token;
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
-import edu.uci.ics.asterix.builders.IARecordBuilder;
-import edu.uci.ics.asterix.builders.IAUnorderedListBuilder;
-import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.builders.UnorderedListBuilder;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APoint3DSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ADouble;
-import edu.uci.ics.asterix.om.base.AFloat;
-import edu.uci.ics.asterix.om.base.AInt16;
-import edu.uci.ics.asterix.om.base.AInt32;
-import edu.uci.ics.asterix.om.base.AInt64;
-import edu.uci.ics.asterix.om.base.AInt8;
-import edu.uci.ics.asterix.om.base.AMutableDouble;
-import edu.uci.ics.asterix.om.base.AMutableFloat;
-import edu.uci.ics.asterix.om.base.AMutableInt16;
-import edu.uci.ics.asterix.om.base.AMutableInt32;
-import edu.uci.ics.asterix.om.base.AMutableInt64;
-import edu.uci.ics.asterix.om.base.AMutableInt8;
-import edu.uci.ics.asterix.om.base.AMutableString;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
+/**
+ * A Tuple parser factory for creating a tuple parser capable of parsing
+ * ADM data.
+ */
 public class AdmSchemafullRecordParserFactory implements ITupleParserFactory {
 
     private static final long serialVersionUID = 1L;
@@ -78,930 +35,7 @@
 
     @Override
     public ITupleParser createTupleParser(final IHyracksTaskContext ctx) {
-        return new ITupleParser() {
-            private AdmLexer admLexer;
-            private ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
-            private DataOutput dos = tb.getDataOutput();
-            private FrameTupleAppender appender = new FrameTupleAppender(ctx.getFrameSize());
-            private ByteBuffer frame = ctx.allocateFrame();
-
-            private int nullableFieldId = 0;
-
-            private Queue<ArrayBackedValueStorage> baaosPool = new ArrayDeque<ArrayBackedValueStorage>();
-            private Queue<IARecordBuilder> recordBuilderPool = new ArrayDeque<IARecordBuilder>();
-            private Queue<IAOrderedListBuilder> orderedListBuilderPool = new ArrayDeque<IAOrderedListBuilder>();
-            private Queue<IAUnorderedListBuilder> unorderedListBuilderPool = new ArrayDeque<IAUnorderedListBuilder>();
-
-            private String mismatchErrorMessage = "Mismatch Type, expecting a value of type ";
-
-            // Mutable Types..
-            private AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-            private AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-            private AMutableInt32 aInt32 = new AMutableInt32(0);
-            private AMutableInt64 aInt64 = new AMutableInt64(0);
-            private AMutableDouble aDouble = new AMutableDouble(0);
-            private AMutableFloat aFloat = new AMutableFloat(0);
-            private AMutableString aString = new AMutableString("");
-            private AMutableString aStringFieldName = new AMutableString("");
-
-            // Serializers
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.ADOUBLE);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.ASTRING);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.AFLOAT);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AInt8> int8Serde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.AINT8);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AInt16> int16Serde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.AINT16);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.AINT32);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<AInt64> int64Serde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.AINT64);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.ABOOLEAN);
-            @SuppressWarnings("unchecked")
-            private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
-                    .getSerializerDeserializer(BuiltinType.ANULL);
-
-            @Override
-            public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
-                admLexer = new AdmLexer(in);
-                appender.reset(frame, true);
-                int tupleNum = 0;
-                try {
-                    while (true) {
-                        tb.reset();
-                        if (!parseAdmInstance(recType, true, dos)) {
-                            break;
-                        }
-                        tb.addFieldEndOffset();
-                        if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                            FrameUtils.flushFrame(frame, writer);
-                            appender.reset(frame, true);
-                            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                                throw new IllegalStateException();
-                            }
-                        }
-                        tupleNum++;
-                    }
-                    if (appender.getTupleCount() > 0) {
-                        FrameUtils.flushFrame(frame, writer);
-                    }
-                } catch (AsterixException ae) {
-                    throw new HyracksDataException(ae);
-                } catch (IOException ioe) {
-                    throw new HyracksDataException(ioe);
-                }
-            }
-
-            private boolean parseAdmInstance(IAType objectType, Boolean datasetRec, DataOutput out)
-                    throws AsterixException, IOException {
-                Token token;
-                try {
-                    token = admLexer.next();
-                } catch (ParseException pe) {
-                    throw new AsterixException(pe);
-                }
-                if (token.kind == AdmLexerConstants.EOF) {
-                    return false;
-                } else {
-                    admFromLexerStream(token, objectType, out, datasetRec);
-                    return true;
-                }
-            }
-
-            private void admFromLexerStream(Token token, IAType objectType, DataOutput out, Boolean datasetRec)
-                    throws AsterixException, IOException {
-
-                switch (token.kind) {
-                    case AdmLexerConstants.NULL_LITERAL: {
-                        if (checkType(ATypeTag.NULL, objectType, out)) {
-                            nullSerde.serialize(ANull.NULL, out);
-                        } else
-                            throw new AsterixException(" This field can not be null ");
-                        break;
-                    }
-                    case AdmLexerConstants.TRUE_LITERAL: {
-                        if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
-                            booleanSerde.serialize(ABoolean.TRUE, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.BOOLEAN_CONS: {
-                        parseConstructor(ATypeTag.BOOLEAN, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.FALSE_LITERAL: {
-                        if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
-                            booleanSerde.serialize(ABoolean.FALSE, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.DOUBLE_LITERAL: {
-                        if (checkType(ATypeTag.DOUBLE, objectType, out)) {
-                            aDouble.setValue(Double.parseDouble(token.image));
-                            doubleSerde.serialize(aDouble, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.DOUBLE_CONS: {
-                        parseConstructor(ATypeTag.DOUBLE, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.FLOAT_LITERAL: {
-                        if (checkType(ATypeTag.FLOAT, objectType, out)) {
-                            aFloat.setValue(Float.parseFloat(token.image));
-                            floatSerde.serialize(aFloat, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.FLOAT_CONS: {
-                        parseConstructor(ATypeTag.FLOAT, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.INT8_LITERAL: {
-                        if (checkType(ATypeTag.INT8, objectType, out)) {
-                            parseInt8(token.image, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.INT8_CONS: {
-                        parseConstructor(ATypeTag.INT8, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.INT16_LITERAL: {
-                        if (checkType(ATypeTag.INT16, objectType, out)) {
-                            parseInt16(token.image, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.INT16_CONS: {
-                        parseConstructor(ATypeTag.INT16, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.INT_LITERAL:
-                    case AdmLexerConstants.INT32_LITERAL: {
-                        if (checkType(ATypeTag.INT32, objectType, out)) {
-                            parseInt32(token.image, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.INT32_CONS: {
-                        parseConstructor(ATypeTag.INT32, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.INT64_LITERAL: {
-                        if (checkType(ATypeTag.INT64, objectType, out)) {
-                            parseInt64(token.image, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.INT64_CONS: {
-                        parseConstructor(ATypeTag.INT64, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.STRING_LITERAL: {
-                        if (checkType(ATypeTag.STRING, objectType, out)) {
-                            aString.setValue(token.image.substring(1, token.image.length() - 1));
-                            stringSerde.serialize(aString, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-                        break;
-                    }
-                    case AdmLexerConstants.STRING_CONS: {
-                        parseConstructor(ATypeTag.STRING, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.DATE_CONS: {
-                        parseConstructor(ATypeTag.DATE, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.TIME_CONS: {
-                        parseConstructor(ATypeTag.TIME, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.DATETIME_CONS: {
-                        parseConstructor(ATypeTag.DATETIME, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.DURATION_CONS: {
-                        parseConstructor(ATypeTag.DURATION, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.POINT_CONS: {
-                        parseConstructor(ATypeTag.POINT, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.POINT3D_CONS: {
-                        parseConstructor(ATypeTag.POINT3D, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.CIRCLE_CONS: {
-                        parseConstructor(ATypeTag.CIRCLE, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.RECTANGLE_CONS: {
-                        parseConstructor(ATypeTag.RECTANGLE, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.LINE_CONS: {
-                        parseConstructor(ATypeTag.LINE, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.POLYGON_CONS: {
-                        parseConstructor(ATypeTag.POLYGON, objectType, out);
-                        break;
-                    }
-                    case AdmLexerConstants.START_UNORDERED_LIST: {
-                        if (checkType(ATypeTag.UNORDEREDLIST, objectType, out)) {
-                            objectType = getComplexType(objectType, ATypeTag.UNORDEREDLIST);
-                            parseUnorderedList((AUnorderedListType) objectType, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
-                        break;
-                    }
-
-                    case AdmLexerConstants.START_ORDERED_LIST: {
-                        if (checkType(ATypeTag.ORDEREDLIST, objectType, out)) {
-                            objectType = getComplexType(objectType, ATypeTag.ORDEREDLIST);
-                            parseOrderedList((AOrderedListType) objectType, out);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
-                        break;
-                    }
-                    case AdmLexerConstants.START_RECORD: {
-                        if (checkType(ATypeTag.RECORD, objectType, out)) {
-                            objectType = getComplexType(objectType, ATypeTag.RECORD);
-                            parseRecord((ARecordType) objectType, out, datasetRec);
-                        } else
-                            throw new AsterixException(mismatchErrorMessage + objectType.getTypeTag());
-                        break;
-                    }
-                    case AdmLexerConstants.EOF: {
-                        break;
-                    }
-                    default: {
-                        throw new AsterixException("Unexpected ADM token kind: "
-                                + admLexer.tokenKindToString(token.kind) + ".");
-                    }
-                }
-            }
-
-            private void parseConstructor(ATypeTag typeTag, IAType objectType, DataOutput out) throws AsterixException {
-                try {
-                    Token token = admLexer.next();
-                    if (token.kind == AdmLexerConstants.CONSTRUCTOR_OPEN) {
-                        if (checkType(typeTag, objectType, out)) {
-                            token = admLexer.next();
-                            if (token.kind == AdmLexerConstants.STRING_LITERAL) {
-                                switch (typeTag) {
-                                    case BOOLEAN:
-                                        parseBoolean(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case INT8:
-                                        parseInt8(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case INT16:
-                                        parseInt16(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case INT32:
-                                        parseInt32(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case INT64:
-                                        parseInt64(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case FLOAT:
-                                        aFloat.setValue(Float.parseFloat(token.image.substring(1,
-                                                token.image.length() - 1)));
-                                        floatSerde.serialize(aFloat, out);
-                                        break;
-                                    case DOUBLE:
-                                        aDouble.setValue(Double.parseDouble(token.image.substring(1,
-                                                token.image.length() - 1)));
-                                        doubleSerde.serialize(aDouble, out);
-                                        break;
-                                    case STRING:
-                                        aString.setValue(token.image.substring(1, token.image.length() - 1));
-                                        stringSerde.serialize(aString, out);
-                                        break;
-                                    case TIME:
-                                        parseTime(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case DATE:
-                                        parseDate(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case DATETIME:
-                                        parseDatetime(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case DURATION:
-                                        parseDuration(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case POINT:
-                                        parsePoint(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case POINT3D:
-                                        parsePoint3d(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case CIRCLE:
-                                        parseCircle(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case RECTANGLE:
-                                        parseRectangle(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case LINE:
-                                        parseLine(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-                                    case POLYGON:
-                                        parsePolygon(token.image.substring(1, token.image.length() - 1), out);
-                                        break;
-
-                                }
-                                token = admLexer.next();
-                                if (token.kind == AdmLexerConstants.CONSTRUCTOR_CLOSE)
-                                    return;
-                            }
-                        }
-                    }
-                } catch (Exception e) {
-                    throw new AsterixException(e);
-                }
-                throw new AsterixException(mismatchErrorMessage + objectType.getTypeName());
-            }
-
-            private void parseBoolean(String bool, DataOutput out) throws AsterixException {
-                String errorMessage = "This can not be an instance of boolean";
-                try {
-                    if (bool.equals("true"))
-                        booleanSerde.serialize(ABoolean.TRUE, out);
-                    else if (bool.equals("false"))
-                        booleanSerde.serialize(ABoolean.FALSE, out);
-                    else
-                        throw new AsterixException(errorMessage);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(errorMessage);
-                }
-            }
-
-            private void parseInt8(String int8, DataOutput out) throws AsterixException {
-                String errorMessage = "This can not be an instance of int8";
-                try {
-                    boolean positive = true;
-                    byte value = 0;
-                    int offset = 0;
-
-                    if (int8.charAt(offset) == '+')
-                        offset++;
-                    else if (int8.charAt(offset) == '-') {
-                        offset++;
-                        positive = false;
-                    }
-                    for (; offset < int8.length(); offset++) {
-                        if (int8.charAt(offset) >= '0' && int8.charAt(offset) <= '9')
-                            value = (byte) (value * 10 + int8.charAt(offset) - '0');
-                        else if (int8.charAt(offset) == 'i' && int8.charAt(offset + 1) == '8'
-                                && offset + 2 == int8.length())
-                            break;
-                        else
-                            throw new AsterixException(errorMessage);
-                    }
-                    if (value < 0)
-                        throw new AsterixException(errorMessage);
-                    if (value > 0 && !positive)
-                        value *= -1;
-                    aInt8.setValue(value);
-                    int8Serde.serialize(aInt8, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(errorMessage);
-                }
-            }
-
-            private void parseInt16(String int16, DataOutput out) throws AsterixException {
-                String errorMessage = "This can not be an instance of int16";
-                try {
-                    boolean positive = true;
-                    short value = 0;
-                    int offset = 0;
-
-                    if (int16.charAt(offset) == '+')
-                        offset++;
-                    else if (int16.charAt(offset) == '-') {
-                        offset++;
-                        positive = false;
-                    }
-                    for (; offset < int16.length(); offset++) {
-                        if (int16.charAt(offset) >= '0' && int16.charAt(offset) <= '9')
-                            value = (short) (value * 10 + int16.charAt(offset) - '0');
-                        else if (int16.charAt(offset) == 'i' && int16.charAt(offset + 1) == '1'
-                                && int16.charAt(offset + 2) == '6' && offset + 3 == int16.length())
-                            break;
-                        else
-                            throw new AsterixException(errorMessage);
-                    }
-                    if (value < 0)
-                        throw new AsterixException(errorMessage);
-                    if (value > 0 && !positive)
-                        value *= -1;
-                    aInt16.setValue(value);
-                    int16Serde.serialize(aInt16, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(errorMessage);
-                }
-            }
-
-            private void parseInt32(String int32, DataOutput out) throws AsterixException {
-
-                String errorMessage = "This can not be an instance of int32";
-                try {
-                    boolean positive = true;
-                    int value = 0;
-                    int offset = 0;
-
-                    if (int32.charAt(offset) == '+')
-                        offset++;
-                    else if (int32.charAt(offset) == '-') {
-                        offset++;
-                        positive = false;
-                    }
-                    for (; offset < int32.length(); offset++) {
-                        if (int32.charAt(offset) >= '0' && int32.charAt(offset) <= '9')
-                            value = (value * 10 + int32.charAt(offset) - '0');
-                        else if (int32.charAt(offset) == 'i' && int32.charAt(offset + 1) == '3'
-                                && int32.charAt(offset + 2) == '2' && offset + 3 == int32.length())
-                            break;
-                        else
-                            throw new AsterixException(errorMessage);
-                    }
-                    if (value < 0)
-                        throw new AsterixException(errorMessage);
-                    if (value > 0 && !positive)
-                        value *= -1;
-
-                    aInt32.setValue(value);
-                    int32Serde.serialize(aInt32, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(errorMessage);
-                }
-            }
-
-            private void parseInt64(String int64, DataOutput out) throws AsterixException {
-                String errorMessage = "This can not be an instance of int64";
-                try {
-                    boolean positive = true;
-                    long value = 0;
-                    int offset = 0;
-
-                    if (int64.charAt(offset) == '+')
-                        offset++;
-                    else if (int64.charAt(offset) == '-') {
-                        offset++;
-                        positive = false;
-                    }
-                    for (; offset < int64.length(); offset++) {
-                        if (int64.charAt(offset) >= '0' && int64.charAt(offset) <= '9')
-                            value = (value * 10 + int64.charAt(offset) - '0');
-                        else if (int64.charAt(offset) == 'i' && int64.charAt(offset + 1) == '6'
-                                && int64.charAt(offset + 2) == '4' && offset + 3 == int64.length())
-                            break;
-                        else
-                            throw new AsterixException(errorMessage);
-                    }
-                    if (value < 0)
-                        throw new AsterixException(errorMessage);
-                    if (value > 0 && !positive)
-                        value *= -1;
-
-                    aInt64.setValue(value);
-                    int64Serde.serialize(aInt64, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(errorMessage);
-                }
-            }
-
-            private void parsePoint(String point, DataOutput out) throws AsterixException {
-                try {
-                    APointSerializerDeserializer.parse(point, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parsePoint3d(String point3d, DataOutput out) throws AsterixException {
-                try {
-                    APoint3DSerializerDeserializer.parse(point3d, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseCircle(String circle, DataOutput out) throws AsterixException {
-                try {
-                    ACircleSerializerDeserializer.parse(circle, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseRectangle(String rectangle, DataOutput out) throws AsterixException {
-                try {
-                    ARectangleSerializerDeserializer.parse(rectangle, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseLine(String line, DataOutput out) throws AsterixException {
-                try {
-                    ALineSerializerDeserializer.parse(line, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parsePolygon(String polygon, DataOutput out) throws AsterixException, IOException {
-                try {
-                    APolygonSerializerDeserializer.parse(polygon, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseTime(String time, DataOutput out) throws AsterixException {
-                try {
-                    ATimeSerializerDeserializer.parse(time, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseDate(String date, DataOutput out) throws AsterixException, IOException {
-                try {
-                    ADateSerializerDeserializer.parse(date, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseDatetime(String datetime, DataOutput out) throws AsterixException, IOException {
-                try {
-                    ADateTimeSerializerDeserializer.parse(datetime, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-            }
-
-            private void parseDuration(String duration, DataOutput out) throws AsterixException {
-                try {
-                    ADurationSerializerDeserializer.parse(duration, out);
-                } catch (HyracksDataException e) {
-                    throw new AsterixException(e);
-                }
-
-            }
-
-            private IAType getComplexType(IAType aObjectType, ATypeTag tag) {
-
-                if (aObjectType == null) {
-                    return null;
-                }
-
-                if (aObjectType.getTypeTag() == tag)
-                    return aObjectType;
-
-                if (aObjectType.getTypeTag() == ATypeTag.UNION) {
-                    unionList = ((AUnionType) aObjectType).getUnionList();
-                    for (int i = 0; i < unionList.size(); i++)
-                        if (unionList.get(i).getTypeTag() == tag) {
-                            return unionList.get(i);
-                        }
-                }
-                return null; // wont get here
-            }
-
-            List<IAType> unionList;
-
-            private boolean checkType(ATypeTag expectedTypeTag, IAType aObjectType, DataOutput out) throws IOException {
-
-                if (aObjectType == null)
-                    return true;
-
-                if (aObjectType.getTypeTag() != ATypeTag.UNION) {
-                    if (expectedTypeTag == aObjectType.getTypeTag())
-                        return true;
-                } else { // union
-                    unionList = ((AUnionType) aObjectType).getUnionList();
-                    for (int i = 0; i < unionList.size(); i++)
-                        if (unionList.get(i).getTypeTag() == expectedTypeTag)
-                            return true;
-                }
-                return false;
-            }
-
-            private void parseRecord(ARecordType recType, DataOutput out, Boolean datasetRec) throws IOException,
-                    AsterixException {
-
-                ArrayBackedValueStorage fieldValueBuffer = getTempBuffer();
-                ArrayBackedValueStorage fieldNameBuffer = getTempBuffer();
-                IARecordBuilder recBuilder = getRecordBuilder();
-
-                // Boolean[] nulls = null;
-                BitSet nulls = null;
-                if (datasetRec) {
-                    if (recType != null) {
-                        nulls = new BitSet(recType.getFieldNames().length);
-                        recBuilder.reset(recType);
-                    } else
-                        recBuilder.reset(null);
-                } else if (recType != null) {
-                    nulls = new BitSet(recType.getFieldNames().length);
-                    recBuilder.reset(recType);
-                } else
-                    recBuilder.reset(null);
-
-                recBuilder.init();
-                Token token = null;
-                boolean inRecord = true;
-                boolean expectingRecordField = false;
-                boolean first = true;
-
-                Boolean openRecordField = false;
-                int fieldId = 0;
-                IAType fieldType = null;
-                do {
-                    token = nextToken();
-                    switch (token.kind) {
-                        case AdmLexerConstants.END_RECORD: {
-                            if (expectingRecordField) {
-                                throw new AsterixException("Found END_RECORD while expecting a record field.");
-                            }
-                            inRecord = false;
-                            break;
-                        }
-                        case AdmLexerConstants.STRING_LITERAL: {
-                            // we've read the name of the field
-                            // now read the content
-                            fieldNameBuffer.reset();
-                            fieldValueBuffer.reset();
-                            expectingRecordField = false;
-
-                            if (recType != null) {
-                                String fldName = token.image.substring(1, token.image.length() - 1);
-                                fieldId = recBuilder.getFieldId(fldName);
-                                if (fieldId < 0 && !recType.isOpen()) {
-                                    throw new AsterixException("This record is closed, you can not add extra fields !!");
-                                } else if (fieldId < 0 && recType.isOpen()) {
-                                    aStringFieldName.setValue(token.image.substring(1, token.image.length() - 1));
-                                    stringSerde.serialize(aStringFieldName, fieldNameBuffer.getDataOutput());
-                                    openRecordField = true;
-                                    fieldType = null;
-                                } else {
-                                    // a closed field
-                                    nulls.set(fieldId);
-                                    fieldType = recType.getFieldTypes()[fieldId];
-                                    openRecordField = false;
-                                }
-                            } else {
-                                aStringFieldName.setValue(token.image.substring(1, token.image.length() - 1));
-                                stringSerde.serialize(aStringFieldName, fieldNameBuffer.getDataOutput());
-                                openRecordField = true;
-                                fieldType = null;
-                            }
-
-                            token = nextToken();
-                            if (token.kind != AdmLexerConstants.COLON) {
-                                throw new AsterixException("Unexpected ADM token kind: "
-                                        + admLexer.tokenKindToString(token.kind) + " while expecting \":\".");
-                            }
-
-                            token = nextToken();
-                            this.admFromLexerStream(token, fieldType, fieldValueBuffer.getDataOutput(), false);
-                            if (openRecordField) {
-                                if (fieldValueBuffer.getBytes()[0] != ATypeTag.NULL.serialize())
-                                    recBuilder.addField(fieldNameBuffer, fieldValueBuffer);
-                            } else if (recType.getFieldTypes()[fieldId].getTypeTag() == ATypeTag.UNION) {
-                                if (NonTaggedFormatUtil.isOptionalField((AUnionType) recType.getFieldTypes()[fieldId])) {
-                                    if (fieldValueBuffer.getBytes()[0] != ATypeTag.NULL.serialize()) {
-                                        recBuilder.addField(fieldId, fieldValueBuffer);
-                                    }
-                                }
-                            } else {
-                                recBuilder.addField(fieldId, fieldValueBuffer);
-                            }
-
-                            break;
-                        }
-                        case AdmLexerConstants.COMMA: {
-                            if (first) {
-                                throw new AsterixException("Found COMMA before any record field.");
-                            }
-                            if (expectingRecordField) {
-                                throw new AsterixException("Found COMMA while expecting a record field.");
-                            }
-                            expectingRecordField = true;
-                            break;
-                        }
-                        default: {
-                            throw new AsterixException("Unexpected ADM token kind: "
-                                    + admLexer.tokenKindToString(token.kind) + " while parsing record fields.");
-                        }
-                    }
-                    first = false;
-                } while (inRecord);
-
-                if (recType != null) {
-                    nullableFieldId = checkNullConstraints(recType, nulls);
-                    if (nullableFieldId != -1)
-                        throw new AsterixException("Field " + nullableFieldId + " can not be null");
-                }
-                recBuilder.write(out, true);
-                returnRecordBuilder(recBuilder);
-                returnTempBuffer(fieldNameBuffer);
-                returnTempBuffer(fieldValueBuffer);
-            }
-
-            private int checkNullConstraints(ARecordType recType, BitSet nulls) {
-
-                boolean isNull = false;
-                for (int i = 0; i < recType.getFieldTypes().length; i++)
-                    if (nulls.get(i) == false) {
-                        IAType type = recType.getFieldTypes()[i];
-                        if (type.getTypeTag() != ATypeTag.NULL && type.getTypeTag() != ATypeTag.UNION)
-                            return i;
-
-                        if (type.getTypeTag() == ATypeTag.UNION) { // union
-                            unionList = ((AUnionType) type).getUnionList();
-                            for (int j = 0; j < unionList.size(); j++)
-                                if (unionList.get(j).getTypeTag() == ATypeTag.NULL) {
-                                    isNull = true;
-                                    break;
-                                }
-                            if (!isNull)
-                                return i;
-                        }
-                    }
-                return -1;
-            }
-
-            private void parseOrderedList(AOrderedListType oltype, DataOutput out) throws IOException, AsterixException {
-
-                ArrayBackedValueStorage itemBuffer = getTempBuffer();
-                OrderedListBuilder orderedListBuilder = (OrderedListBuilder) getOrderedListBuilder();
-
-                IAType itemType = null;
-                if (oltype != null)
-                    itemType = oltype.getItemType();
-                orderedListBuilder.reset(oltype);
-
-                Token token = null;
-                boolean inList = true;
-                boolean expectingListItem = false;
-                boolean first = true;
-                do {
-                    token = nextToken();
-                    if (token.kind == AdmLexerConstants.END_ORDERED_LIST) {
-                        if (expectingListItem) {
-                            throw new AsterixException("Found END_COLLECTION while expecting a list item.");
-                        }
-                        inList = false;
-                    } else if (token.kind == AdmLexerConstants.COMMA) {
-                        if (first) {
-                            throw new AsterixException("Found COMMA before any list item.");
-                        }
-                        if (expectingListItem) {
-                            throw new AsterixException("Found COMMA while expecting a list item.");
-                        }
-                        expectingListItem = true;
-                    } else {
-                        expectingListItem = false;
-                        itemBuffer.reset();
-
-                        admFromLexerStream(token, itemType, itemBuffer.getDataOutput(), false);
-                        orderedListBuilder.addItem(itemBuffer);
-                    }
-                    first = false;
-                } while (inList);
-                orderedListBuilder.write(out, true);
-                returnOrderedListBuilder(orderedListBuilder);
-                returnTempBuffer(itemBuffer);
-            }
-
-            private void parseUnorderedList(AUnorderedListType uoltype, DataOutput out) throws IOException,
-                    AsterixException {
-
-                ArrayBackedValueStorage itemBuffer = getTempBuffer();
-                UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) getUnorderedListBuilder();
-
-                IAType itemType = null;
-
-                if (uoltype != null)
-                    itemType = uoltype.getItemType();
-                unorderedListBuilder.reset(uoltype);
-
-                Token token = null;
-                boolean inList = true;
-                boolean expectingListItem = false;
-                boolean first = true;
-                do {
-                    token = nextToken();
-                    if (token.kind == AdmLexerConstants.END_UNORDERED_LIST) {
-                        if (expectingListItem) {
-                            throw new AsterixException("Found END_COLLECTION while expecting a list item.");
-                        }
-                        inList = false;
-                    } else if (token.kind == AdmLexerConstants.COMMA) {
-                        if (first) {
-                            throw new AsterixException("Found COMMA before any list item.");
-                        }
-                        if (expectingListItem) {
-                            throw new AsterixException("Found COMMA while expecting a list item.");
-                        }
-                        expectingListItem = true;
-                    } else {
-                        expectingListItem = false;
-                        itemBuffer.reset();
-                        admFromLexerStream(token, itemType, itemBuffer.getDataOutput(), false);
-                        unorderedListBuilder.addItem(itemBuffer);
-                    }
-                    first = false;
-                } while (inList);
-                unorderedListBuilder.write(out, true);
-                returnUnorderedListBuilder(unorderedListBuilder);
-                returnTempBuffer(itemBuffer);
-            }
-
-            private Token nextToken() throws AsterixException {
-                try {
-                    return admLexer.next();
-                } catch (ParseException pe) {
-                    throw new AsterixException(pe);
-                }
-            }
-
-            private IARecordBuilder getRecordBuilder() {
-                RecordBuilder recBuilder = (RecordBuilder) recordBuilderPool.poll();
-                if (recBuilder != null)
-                    return recBuilder;
-                else
-                    return new RecordBuilder();
-            }
-
-            private void returnRecordBuilder(IARecordBuilder recBuilder) {
-                this.recordBuilderPool.add(recBuilder);
-            }
-
-            private IAOrderedListBuilder getOrderedListBuilder() {
-                OrderedListBuilder orderedListBuilder = (OrderedListBuilder) orderedListBuilderPool.poll();
-                if (orderedListBuilder != null)
-                    return orderedListBuilder;
-                else
-                    return new OrderedListBuilder();
-            }
-
-            private void returnOrderedListBuilder(IAOrderedListBuilder orderedListBuilder) {
-                this.orderedListBuilderPool.add(orderedListBuilder);
-            }
-
-            private IAUnorderedListBuilder getUnorderedListBuilder() {
-                UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) unorderedListBuilderPool.poll();
-                if (unorderedListBuilder != null)
-                    return unorderedListBuilder;
-                else
-                    return new UnorderedListBuilder();
-            }
-
-            private void returnUnorderedListBuilder(IAUnorderedListBuilder unorderedListBuilder) {
-                this.unorderedListBuilderPool.add(unorderedListBuilder);
-            }
-
-            private ArrayBackedValueStorage getTempBuffer() {
-                ArrayBackedValueStorage tmpBaaos = baaosPool.poll();
-                if (tmpBaaos != null) {
-                    return tmpBaaos;
-                } else {
-                    return new ArrayBackedValueStorage();
-                }
-            }
-
-            private void returnTempBuffer(ArrayBackedValueStorage tempBaaos) {
-                baaosPool.add(tempBaaos);
-            }
-        };
+        return new AdmTupleParser(ctx, recType);
     }
+
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmTupleParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmTupleParser.java
index 3b52315..9be4c00 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmTupleParser.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AdmTupleParser.java
@@ -1,1047 +1,35 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.operators.file;
 
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.util.ArrayDeque;
-import java.util.BitSet;
-import java.util.List;
-import java.util.Queue;
-
-import edu.uci.ics.asterix.adm.parser.nontagged.AdmLexer;
-import edu.uci.ics.asterix.adm.parser.nontagged.AdmLexerConstants;
-import edu.uci.ics.asterix.adm.parser.nontagged.ParseException;
-import edu.uci.ics.asterix.adm.parser.nontagged.Token;
-import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
-import edu.uci.ics.asterix.builders.IARecordBuilder;
-import edu.uci.ics.asterix.builders.IAUnorderedListBuilder;
-import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.builders.UnorderedListBuilder;
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADateTimeSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADurationSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APoint3DSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ATimeSerializerDeserializer;
-import edu.uci.ics.asterix.om.base.ABoolean;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.AUnorderedListType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
 
-public class AdmTupleParser extends AbstractTupleParser  {
+/**
+ * An extension of AbstractTupleParser that provides functionality for
+ * parsing delimited files.
+ */
+public class AdmTupleParser extends AbstractTupleParser {
 
-	protected AdmLexer admLexer;
-	protected ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
-	protected DataOutput dos = tb.getDataOutput();
-	protected final FrameTupleAppender appender;
-	protected final ByteBuffer frame;
-	protected final ARecordType recType;
+    public AdmTupleParser(IHyracksTaskContext ctx, ARecordType recType) {
+        super(ctx, recType);
+    }
 
-	private int nullableFieldId = 0;
-
-	private Queue<ArrayBackedValueStorage> baaosPool = new ArrayDeque<ArrayBackedValueStorage>();
-	private Queue<IARecordBuilder> recordBuilderPool = new ArrayDeque<IARecordBuilder>();
-	private Queue<IAOrderedListBuilder> orderedListBuilderPool = new ArrayDeque<IAOrderedListBuilder>();
-	private Queue<IAUnorderedListBuilder> unorderedListBuilderPool = new ArrayDeque<IAUnorderedListBuilder>();
-
-	private String mismatchErrorMessage = "Mismatch Type, expecting a value of type ";
-
-
-	public AdmTupleParser(IHyracksTaskContext ctx, ARecordType recType) {
-		appender = new FrameTupleAppender(ctx.getFrameSize());
-		frame = ctx.allocateFrame();
-		this.recType = recType;
-
-	}
-
-	@Override
-	public void parse(InputStream in, IFrameWriter writer)
-			throws HyracksDataException {
-		admLexer = new AdmLexer(in);
-		appender.reset(frame, true);
-		int tupleNum = 0;
-		try {
-			while (true) {
-				tb.reset();
-				if (!parseAdmInstance(recType, true, dos)) {
-					break;
-				}
-				tb.addFieldEndOffset();
-				if (!appender.append(tb.getFieldEndOffsets(),
-						tb.getByteArray(), 0, tb.getSize())) {
-					FrameUtils.flushFrame(frame, writer);
-					appender.reset(frame, true);
-					if (!appender.append(tb.getFieldEndOffsets(),
-							tb.getByteArray(), 0, tb.getSize())) {
-						throw new IllegalStateException();
-					}
-				}
-				tupleNum++;
-			}
-			if (appender.getTupleCount() > 0) {
-				FrameUtils.flushFrame(frame, writer);
-			}
-		} catch (AsterixException ae) {
-			throw new HyracksDataException(ae);
-		} catch (IOException ioe) {
-			throw new HyracksDataException(ioe);
-		}
-	}
-
-	protected boolean parseAdmInstance(IAType objectType, Boolean datasetRec,
-			DataOutput out) throws AsterixException, IOException {
-		Token token;
-		try {
-			token = admLexer.next();
-		} catch (ParseException pe) {
-			throw new AsterixException(pe);
-		}
-		if (token.kind == AdmLexerConstants.EOF) {
-			return false;
-		} else {
-			admFromLexerStream(token, objectType, out, datasetRec);
-			return true;
-		}
-	}
-
-	private void admFromLexerStream(Token token, IAType objectType,
-			DataOutput out, Boolean datasetRec) throws AsterixException,
-			IOException {
-
-		switch (token.kind) {
-		case AdmLexerConstants.NULL_LITERAL: {
-			if (checkType(ATypeTag.NULL, objectType, out)) {
-				nullSerde.serialize(ANull.NULL, out);
-			} else
-				throw new AsterixException(" This field can not be null ");
-			break;
-		}
-		case AdmLexerConstants.TRUE_LITERAL: {
-			if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
-				booleanSerde.serialize(ABoolean.TRUE, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.BOOLEAN_CONS: {
-			parseConstructor(ATypeTag.BOOLEAN, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.FALSE_LITERAL: {
-			if (checkType(ATypeTag.BOOLEAN, objectType, out)) {
-				booleanSerde.serialize(ABoolean.FALSE, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.DOUBLE_LITERAL: {
-			if (checkType(ATypeTag.DOUBLE, objectType, out)) {
-				aDouble.setValue(Double.parseDouble(token.image));
-				doubleSerde.serialize(aDouble, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.DOUBLE_CONS: {
-			parseConstructor(ATypeTag.DOUBLE, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.FLOAT_LITERAL: {
-			if (checkType(ATypeTag.FLOAT, objectType, out)) {
-				aFloat.setValue(Float.parseFloat(token.image));
-				floatSerde.serialize(aFloat, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.FLOAT_CONS: {
-			parseConstructor(ATypeTag.FLOAT, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.INT8_LITERAL: {
-			if (checkType(ATypeTag.INT8, objectType, out)) {
-				parseInt8(token.image, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.INT8_CONS: {
-			parseConstructor(ATypeTag.INT8, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.INT16_LITERAL: {
-			if (checkType(ATypeTag.INT16, objectType, out)) {
-				parseInt16(token.image, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.INT16_CONS: {
-			parseConstructor(ATypeTag.INT16, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.INT_LITERAL:
-		case AdmLexerConstants.INT32_LITERAL: {
-			if (checkType(ATypeTag.INT32, objectType, out)) {
-				parseInt32(token.image, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.INT32_CONS: {
-			parseConstructor(ATypeTag.INT32, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.INT64_LITERAL: {
-			if (checkType(ATypeTag.INT64, objectType, out)) {
-				parseInt64(token.image, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.INT64_CONS: {
-			parseConstructor(ATypeTag.INT64, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.STRING_LITERAL: {
-			if (checkType(ATypeTag.STRING, objectType, out)) {
-				aString.setValue(token.image.substring(1,
-						token.image.length() - 1));
-				stringSerde.serialize(aString, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeName());
-			break;
-		}
-		case AdmLexerConstants.STRING_CONS: {
-			parseConstructor(ATypeTag.STRING, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.DATE_CONS: {
-			parseConstructor(ATypeTag.DATE, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.TIME_CONS: {
-			parseConstructor(ATypeTag.TIME, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.DATETIME_CONS: {
-			parseConstructor(ATypeTag.DATETIME, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.DURATION_CONS: {
-			parseConstructor(ATypeTag.DURATION, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.POINT_CONS: {
-			parseConstructor(ATypeTag.POINT, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.POINT3D_CONS: {
-			parseConstructor(ATypeTag.POINT3D, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.CIRCLE_CONS: {
-			parseConstructor(ATypeTag.CIRCLE, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.RECTANGLE_CONS: {
-			parseConstructor(ATypeTag.RECTANGLE, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.LINE_CONS: {
-			parseConstructor(ATypeTag.LINE, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.POLYGON_CONS: {
-			parseConstructor(ATypeTag.POLYGON, objectType, out);
-			break;
-		}
-		case AdmLexerConstants.START_UNORDERED_LIST: {
-			if (checkType(ATypeTag.UNORDEREDLIST, objectType, out)) {
-				objectType = getComplexType(objectType, ATypeTag.UNORDEREDLIST);
-				parseUnorderedList((AUnorderedListType) objectType, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeTag());
-			break;
-		}
-
-		case AdmLexerConstants.START_ORDERED_LIST: {
-			if (checkType(ATypeTag.ORDEREDLIST, objectType, out)) {
-				objectType = getComplexType(objectType, ATypeTag.ORDEREDLIST);
-				parseOrderedList((AOrderedListType) objectType, out);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeTag());
-			break;
-		}
-		case AdmLexerConstants.START_RECORD: {
-			if (checkType(ATypeTag.RECORD, objectType, out)) {
-				objectType = getComplexType(objectType, ATypeTag.RECORD);
-				parseRecord((ARecordType) objectType, out, datasetRec);
-			} else
-				throw new AsterixException(mismatchErrorMessage
-						+ objectType.getTypeTag());
-			break;
-		}
-		case AdmLexerConstants.EOF: {
-			break;
-		}
-		default: {
-			throw new AsterixException("Unexpected ADM token kind: "
-					+ admLexer.tokenKindToString(token.kind) + ".");
-		}
-		}
-	}
-
-	private void parseDatetime(String datetime, DataOutput out)
-			throws AsterixException, IOException {
-		try {
-			ADateTimeSerializerDeserializer.parse(datetime, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseDuration(String duration, DataOutput out)
-			throws AsterixException {
-		try {
-			ADurationSerializerDeserializer.parse(duration, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-
-	}
-
-	private IAType getComplexType(IAType aObjectType, ATypeTag tag) {
-
-		if (aObjectType == null) {
-			return null;
-		}
-
-		if (aObjectType.getTypeTag() == tag)
-			return aObjectType;
-
-		if (aObjectType.getTypeTag() == ATypeTag.UNION) {
-			unionList = ((AUnionType) aObjectType).getUnionList();
-			for (int i = 0; i < unionList.size(); i++)
-				if (unionList.get(i).getTypeTag() == tag) {
-					return unionList.get(i);
-				}
-		}
-		return null; // wont get here
-	}
-
-	List<IAType> unionList;
-
-	private boolean checkType(ATypeTag expectedTypeTag, IAType aObjectType,
-			DataOutput out) throws IOException {
-
-		if (aObjectType == null)
-			return true;
-
-		if (aObjectType.getTypeTag() != ATypeTag.UNION) {
-			if (expectedTypeTag == aObjectType.getTypeTag())
-				return true;
-		} else { // union
-			unionList = ((AUnionType) aObjectType).getUnionList();
-			for (int i = 0; i < unionList.size(); i++)
-				if (unionList.get(i).getTypeTag() == expectedTypeTag)
-					return true;
-		}
-		return false;
-	}
-
-	private void parseRecord(ARecordType recType, DataOutput out,
-			Boolean datasetRec) throws IOException, AsterixException {
-
-		ArrayBackedValueStorage fieldValueBuffer = getTempBuffer();
-		ArrayBackedValueStorage fieldNameBuffer = getTempBuffer();
-		IARecordBuilder recBuilder = getRecordBuilder();
-
-		// Boolean[] nulls = null;
-		BitSet nulls = null;
-		if (datasetRec) {
-			if (recType != null) {
-				nulls = new BitSet(recType.getFieldNames().length);
-				recBuilder.reset(recType);
-			} else
-				recBuilder.reset(null);
-		} else if (recType != null) {
-			nulls = new BitSet(recType.getFieldNames().length);
-			recBuilder.reset(recType);
-		} else
-			recBuilder.reset(null);
-
-		recBuilder.init();
-		Token token = null;
-		boolean inRecord = true;
-		boolean expectingRecordField = false;
-		boolean first = true;
-
-		Boolean openRecordField = false;
-		int fieldId = 0;
-		IAType fieldType = null;
-		do {
-			token = nextToken();
-			switch (token.kind) {
-			case AdmLexerConstants.END_RECORD: {
-				if (expectingRecordField) {
-					throw new AsterixException(
-							"Found END_RECORD while expecting a record field.");
-				}
-				inRecord = false;
-				break;
-			}
-			case AdmLexerConstants.STRING_LITERAL: {
-				// we've read the name of the field
-				// now read the content
-				fieldNameBuffer.reset();
-				fieldValueBuffer.reset();
-				expectingRecordField = false;
-
-				if (recType != null) {
-					String fldName = token.image.substring(1,
-							token.image.length() - 1);
-					fieldId = recBuilder.getFieldId(fldName);
-					if (fieldId < 0 && !recType.isOpen()) {
-						throw new AsterixException(
-								"This record is closed, you can not add extra fields !!");
-					} else if (fieldId < 0 && recType.isOpen()) {
-						aStringFieldName.setValue(token.image.substring(1,
-								token.image.length() - 1));
-						stringSerde.serialize(aStringFieldName,
-								fieldNameBuffer.getDataOutput());
-						openRecordField = true;
-						fieldType = null;
-					} else {
-						// a closed field
-						nulls.set(fieldId);
-						fieldType = recType.getFieldTypes()[fieldId];
-						openRecordField = false;
-					}
-				} else {
-					aStringFieldName.setValue(token.image.substring(1,
-							token.image.length() - 1));
-					stringSerde.serialize(aStringFieldName,
-							fieldNameBuffer.getDataOutput());
-					openRecordField = true;
-					fieldType = null;
-				}
-
-				token = nextToken();
-				if (token.kind != AdmLexerConstants.COLON) {
-					throw new AsterixException("Unexpected ADM token kind: "
-							+ admLexer.tokenKindToString(token.kind)
-							+ " while expecting \":\".");
-				}
-
-				token = nextToken();
-				this.admFromLexerStream(token, fieldType,
-						fieldValueBuffer.getDataOutput(), false);
-				if (openRecordField) {
-					if (fieldValueBuffer.getBytes()[0] != ATypeTag.NULL
-							.serialize())
-						recBuilder.addField(fieldNameBuffer, fieldValueBuffer);
-				} else if (recType.getFieldTypes()[fieldId].getTypeTag() == ATypeTag.UNION) {
-					if (NonTaggedFormatUtil
-							.isOptionalField((AUnionType) recType
-									.getFieldTypes()[fieldId])) {
-						if (fieldValueBuffer.getBytes()[0] != ATypeTag.NULL
-								.serialize()) {
-							recBuilder.addField(fieldId, fieldValueBuffer);
-						}
-					}
-				} else {
-					recBuilder.addField(fieldId, fieldValueBuffer);
-				}
-
-				break;
-			}
-			case AdmLexerConstants.COMMA: {
-				if (first) {
-					throw new AsterixException(
-							"Found COMMA before any record field.");
-				}
-				if (expectingRecordField) {
-					throw new AsterixException(
-							"Found COMMA while expecting a record field.");
-				}
-				expectingRecordField = true;
-				break;
-			}
-			default: {
-				throw new AsterixException("Unexpected ADM token kind: "
-						+ admLexer.tokenKindToString(token.kind)
-						+ " while parsing record fields.");
-			}
-			}
-			first = false;
-		} while (inRecord);
-
-		if (recType != null) {
-			nullableFieldId = checkNullConstraints(recType, nulls);
-			if (nullableFieldId != -1)
-				throw new AsterixException("Field " + nullableFieldId
-						+ " can not be null");
-		}
-		recBuilder.write(out, true);
-		returnRecordBuilder(recBuilder);
-		returnTempBuffer(fieldNameBuffer);
-		returnTempBuffer(fieldValueBuffer);
-	}
-
-	private int checkNullConstraints(ARecordType recType, BitSet nulls) {
-
-		boolean isNull = false;
-		for (int i = 0; i < recType.getFieldTypes().length; i++)
-			if (nulls.get(i) == false) {
-				IAType type = recType.getFieldTypes()[i];
-				if (type.getTypeTag() != ATypeTag.NULL
-						&& type.getTypeTag() != ATypeTag.UNION)
-					return i;
-
-				if (type.getTypeTag() == ATypeTag.UNION) { // union
-					unionList = ((AUnionType) type).getUnionList();
-					for (int j = 0; j < unionList.size(); j++)
-						if (unionList.get(j).getTypeTag() == ATypeTag.NULL) {
-							isNull = true;
-							break;
-						}
-					if (!isNull)
-						return i;
-				}
-			}
-		return -1;
-	}
-
-	private void parseOrderedList(AOrderedListType oltype, DataOutput out)
-			throws IOException, AsterixException {
-
-		ArrayBackedValueStorage itemBuffer = getTempBuffer();
-		OrderedListBuilder orderedListBuilder = (OrderedListBuilder) getOrderedListBuilder();
-
-		IAType itemType = null;
-		if (oltype != null)
-			itemType = oltype.getItemType();
-		orderedListBuilder.reset(oltype);
-
-		Token token = null;
-		boolean inList = true;
-		boolean expectingListItem = false;
-		boolean first = true;
-		do {
-			token = nextToken();
-			if (token.kind == AdmLexerConstants.END_ORDERED_LIST) {
-				if (expectingListItem) {
-					throw new AsterixException(
-							"Found END_COLLECTION while expecting a list item.");
-				}
-				inList = false;
-			} else if (token.kind == AdmLexerConstants.COMMA) {
-				if (first) {
-					throw new AsterixException(
-							"Found COMMA before any list item.");
-				}
-				if (expectingListItem) {
-					throw new AsterixException(
-							"Found COMMA while expecting a list item.");
-				}
-				expectingListItem = true;
-			} else {
-				expectingListItem = false;
-				itemBuffer.reset();
-
-				admFromLexerStream(token, itemType, itemBuffer.getDataOutput(),
-						false);
-				orderedListBuilder.addItem(itemBuffer);
-			}
-			first = false;
-		} while (inList);
-		orderedListBuilder.write(out, true);
-		returnOrderedListBuilder(orderedListBuilder);
-		returnTempBuffer(itemBuffer);
-	}
-
-	private void parseUnorderedList(AUnorderedListType uoltype, DataOutput out)
-			throws IOException, AsterixException {
-
-		ArrayBackedValueStorage itemBuffer = getTempBuffer();
-		UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) getUnorderedListBuilder();
-
-		IAType itemType = null;
-
-		if (uoltype != null)
-			itemType = uoltype.getItemType();
-		unorderedListBuilder.reset(uoltype);
-
-		Token token = null;
-		boolean inList = true;
-		boolean expectingListItem = false;
-		boolean first = true;
-		do {
-			token = nextToken();
-			if (token.kind == AdmLexerConstants.END_UNORDERED_LIST) {
-				if (expectingListItem) {
-					throw new AsterixException(
-							"Found END_COLLECTION while expecting a list item.");
-				}
-				inList = false;
-			} else if (token.kind == AdmLexerConstants.COMMA) {
-				if (first) {
-					throw new AsterixException(
-							"Found COMMA before any list item.");
-				}
-				if (expectingListItem) {
-					throw new AsterixException(
-							"Found COMMA while expecting a list item.");
-				}
-				expectingListItem = true;
-			} else {
-				expectingListItem = false;
-				itemBuffer.reset();
-				admFromLexerStream(token, itemType, itemBuffer.getDataOutput(),
-						false);
-				unorderedListBuilder.addItem(itemBuffer);
-			}
-			first = false;
-		} while (inList);
-		unorderedListBuilder.write(out, true);
-		returnUnorderedListBuilder(unorderedListBuilder);
-		returnTempBuffer(itemBuffer);
-	}
-
-	private Token nextToken() throws AsterixException {
-		try {
-			return admLexer.next();
-		} catch (ParseException pe) {
-			throw new AsterixException(pe);
-		}
-	}
-
-	private IARecordBuilder getRecordBuilder() {
-		RecordBuilder recBuilder = (RecordBuilder) recordBuilderPool.poll();
-		if (recBuilder != null)
-			return recBuilder;
-		else
-			return new RecordBuilder();
-	}
-
-	private void returnRecordBuilder(IARecordBuilder recBuilder) {
-		this.recordBuilderPool.add(recBuilder);
-	}
-
-	private IAOrderedListBuilder getOrderedListBuilder() {
-		OrderedListBuilder orderedListBuilder = (OrderedListBuilder) orderedListBuilderPool
-				.poll();
-		if (orderedListBuilder != null)
-			return orderedListBuilder;
-		else
-			return new OrderedListBuilder();
-	}
-
-	private void returnOrderedListBuilder(
-			IAOrderedListBuilder orderedListBuilder) {
-		this.orderedListBuilderPool.add(orderedListBuilder);
-	}
-
-	private IAUnorderedListBuilder getUnorderedListBuilder() {
-		UnorderedListBuilder unorderedListBuilder = (UnorderedListBuilder) unorderedListBuilderPool
-				.poll();
-		if (unorderedListBuilder != null)
-			return unorderedListBuilder;
-		else
-			return new UnorderedListBuilder();
-	}
-
-	private void returnUnorderedListBuilder(
-			IAUnorderedListBuilder unorderedListBuilder) {
-		this.unorderedListBuilderPool.add(unorderedListBuilder);
-	}
-
-	private ArrayBackedValueStorage getTempBuffer() {
-		ArrayBackedValueStorage tmpBaaos = baaosPool.poll();
-		if (tmpBaaos != null) {
-			return tmpBaaos;
-		} else {
-			return new ArrayBackedValueStorage();
-		}
-	}
-
-	private void returnTempBuffer(ArrayBackedValueStorage tempBaaos) {
-		baaosPool.add(tempBaaos);
-	}
-
-	private void parseConstructor(ATypeTag typeTag, IAType objectType,
-			DataOutput out) throws AsterixException {
-		try {
-			Token token = admLexer.next();
-			if (token.kind == AdmLexerConstants.CONSTRUCTOR_OPEN) {
-				if (checkType(typeTag, objectType, out)) {
-					token = admLexer.next();
-					if (token.kind == AdmLexerConstants.STRING_LITERAL) {
-						switch (typeTag) {
-						case BOOLEAN:
-							parseBoolean(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case INT8:
-							parseInt8(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case INT16:
-							parseInt16(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case INT32:
-							parseInt32(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case INT64:
-							parseInt64(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case FLOAT:
-							aFloat.setValue(Float.parseFloat(token.image
-									.substring(1, token.image.length() - 1)));
-							floatSerde.serialize(aFloat, out);
-							break;
-						case DOUBLE:
-							aDouble.setValue(Double.parseDouble(token.image
-									.substring(1, token.image.length() - 1)));
-							doubleSerde.serialize(aDouble, out);
-							break;
-						case STRING:
-							aString.setValue(token.image.substring(1,
-									token.image.length() - 1));
-							stringSerde.serialize(aString, out);
-							break;
-						case TIME:
-							parseTime(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case DATE:
-							parseDate(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case DATETIME:
-							parseDatetime(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case DURATION:
-							parseDuration(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case POINT:
-							parsePoint(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case POINT3D:
-							parsePoint3d(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case CIRCLE:
-							parseCircle(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case RECTANGLE:
-							parseRectangle(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case LINE:
-							parseLine(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-						case POLYGON:
-							parsePolygon(
-									token.image.substring(1,
-											token.image.length() - 1), out);
-							break;
-
-						}
-						token = admLexer.next();
-						if (token.kind == AdmLexerConstants.CONSTRUCTOR_CLOSE)
-							return;
-					}
-				}
-			}
-		} catch (Exception e) {
-			throw new AsterixException(e);
-		}
-		throw new AsterixException(mismatchErrorMessage
-				+ objectType.getTypeName());
-	}
-
-	private void parseBoolean(String bool, DataOutput out)
-			throws AsterixException {
-		String errorMessage = "This can not be an instance of boolean";
-		try {
-			if (bool.equals("true"))
-				booleanSerde.serialize(ABoolean.TRUE, out);
-			else if (bool.equals("false"))
-				booleanSerde.serialize(ABoolean.FALSE, out);
-			else
-				throw new AsterixException(errorMessage);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(errorMessage);
-		}
-	}
-
-	private void parseInt8(String int8, DataOutput out) throws AsterixException {
-		String errorMessage = "This can not be an instance of int8";
-		try {
-			boolean positive = true;
-			byte value = 0;
-			int offset = 0;
-
-			if (int8.charAt(offset) == '+')
-				offset++;
-			else if (int8.charAt(offset) == '-') {
-				offset++;
-				positive = false;
-			}
-			for (; offset < int8.length(); offset++) {
-				if (int8.charAt(offset) >= '0' && int8.charAt(offset) <= '9')
-					value = (byte) (value * 10 + int8.charAt(offset) - '0');
-				else if (int8.charAt(offset) == 'i'
-						&& int8.charAt(offset + 1) == '8'
-						&& offset + 2 == int8.length())
-					break;
-				else
-					throw new AsterixException(errorMessage);
-			}
-			if (value < 0)
-				throw new AsterixException(errorMessage);
-			if (value > 0 && !positive)
-				value *= -1;
-			aInt8.setValue(value);
-			int8Serde.serialize(aInt8, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(errorMessage);
-		}
-	}
-
-	private void parseInt16(String int16, DataOutput out)
-			throws AsterixException {
-		String errorMessage = "This can not be an instance of int16";
-		try {
-			boolean positive = true;
-			short value = 0;
-			int offset = 0;
-
-			if (int16.charAt(offset) == '+')
-				offset++;
-			else if (int16.charAt(offset) == '-') {
-				offset++;
-				positive = false;
-			}
-			for (; offset < int16.length(); offset++) {
-				if (int16.charAt(offset) >= '0' && int16.charAt(offset) <= '9')
-					value = (short) (value * 10 + int16.charAt(offset) - '0');
-				else if (int16.charAt(offset) == 'i'
-						&& int16.charAt(offset + 1) == '1'
-						&& int16.charAt(offset + 2) == '6'
-						&& offset + 3 == int16.length())
-					break;
-				else
-					throw new AsterixException(errorMessage);
-			}
-			if (value < 0)
-				throw new AsterixException(errorMessage);
-			if (value > 0 && !positive)
-				value *= -1;
-			aInt16.setValue(value);
-			int16Serde.serialize(aInt16, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(errorMessage);
-		}
-	}
-
-	private void parseInt32(String int32, DataOutput out)
-			throws AsterixException {
-
-		String errorMessage = "This can not be an instance of int32";
-		try {
-			boolean positive = true;
-			int value = 0;
-			int offset = 0;
-
-			if (int32.charAt(offset) == '+')
-				offset++;
-			else if (int32.charAt(offset) == '-') {
-				offset++;
-				positive = false;
-			}
-			for (; offset < int32.length(); offset++) {
-				if (int32.charAt(offset) >= '0' && int32.charAt(offset) <= '9')
-					value = (value * 10 + int32.charAt(offset) - '0');
-				else if (int32.charAt(offset) == 'i'
-						&& int32.charAt(offset + 1) == '3'
-						&& int32.charAt(offset + 2) == '2'
-						&& offset + 3 == int32.length())
-					break;
-				else
-					throw new AsterixException(errorMessage);
-			}
-			if (value < 0)
-				throw new AsterixException(errorMessage);
-			if (value > 0 && !positive)
-				value *= -1;
-
-			aInt32.setValue(value);
-			int32Serde.serialize(aInt32, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(errorMessage);
-		}
-	}
-
-	private void parseInt64(String int64, DataOutput out)
-			throws AsterixException {
-		String errorMessage = "This can not be an instance of int64";
-		try {
-			boolean positive = true;
-			long value = 0;
-			int offset = 0;
-
-			if (int64.charAt(offset) == '+')
-				offset++;
-			else if (int64.charAt(offset) == '-') {
-				offset++;
-				positive = false;
-			}
-			for (; offset < int64.length(); offset++) {
-				if (int64.charAt(offset) >= '0' && int64.charAt(offset) <= '9')
-					value = (value * 10 + int64.charAt(offset) - '0');
-				else if (int64.charAt(offset) == 'i'
-						&& int64.charAt(offset + 1) == '6'
-						&& int64.charAt(offset + 2) == '4'
-						&& offset + 3 == int64.length())
-					break;
-				else
-					throw new AsterixException(errorMessage);
-			}
-			if (value < 0)
-				throw new AsterixException(errorMessage);
-			if (value > 0 && !positive)
-				value *= -1;
-
-			aInt64.setValue(value);
-			int64Serde.serialize(aInt64, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(errorMessage);
-		}
-	}
-
-	private void parsePoint(String point, DataOutput out)
-			throws AsterixException {
-		try {
-			APointSerializerDeserializer.parse(point, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parsePoint3d(String point3d, DataOutput out)
-			throws AsterixException {
-		try {
-			APoint3DSerializerDeserializer.parse(point3d, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseCircle(String circle, DataOutput out)
-			throws AsterixException {
-		try {
-			ACircleSerializerDeserializer.parse(circle, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseRectangle(String rectangle, DataOutput out)
-			throws AsterixException {
-		try {
-			ARectangleSerializerDeserializer.parse(rectangle, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseLine(String line, DataOutput out) throws AsterixException {
-		try {
-			ALineSerializerDeserializer.parse(line, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parsePolygon(String polygon, DataOutput out)
-			throws AsterixException, IOException {
-		try {
-			APolygonSerializerDeserializer.parse(polygon, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseTime(String time, DataOutput out) throws AsterixException {
-		try {
-			ATimeSerializerDeserializer.parse(time, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
-
-	private void parseDate(String date, DataOutput out)
-			throws AsterixException, IOException {
-		try {
-			ADateSerializerDeserializer.parse(date, out);
-		} catch (HyracksDataException e) {
-			throw new AsterixException(e);
-		}
-	}
+    @Override
+    public IDataParser getDataParser() {
+        return new ADMDataParser();
+    }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataParser.java
new file mode 100644
index 0000000..c9560fe
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataParser.java
@@ -0,0 +1,326 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.operators.file;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.util.Arrays;
+
+import edu.uci.ics.asterix.builders.IARecordBuilder;
+import edu.uci.ics.asterix.builders.RecordBuilder;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.base.AMutableString;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+
+public class DelimitedDataParser extends AbstractDataParser implements IDataParser {
+
+    protected final IValueParserFactory[] valueParserFactories;
+    protected final char fieldDelimiter;
+    protected final ARecordType recordType;
+
+    private IARecordBuilder recBuilder;
+    private ArrayBackedValueStorage fieldValueBuffer;
+    private DataOutput fieldValueBufferOutput;
+    private IValueParser[] valueParsers;
+    private FieldCursor cursor;
+    private byte[] fieldTypeTags;
+    private int[] fldIds;
+    private ArrayBackedValueStorage[] nameBuffers;
+
+    public DelimitedDataParser(ARecordType recordType, IValueParserFactory[] valueParserFactories, char fieldDelimter) {
+        this.recordType = recordType;
+        this.valueParserFactories = valueParserFactories;
+        this.fieldDelimiter = fieldDelimter;
+    }
+
+    @Override
+    public void initialize(InputStream in, ARecordType recordType, boolean datasetRec) throws AsterixException,
+            IOException {
+
+        valueParsers = new IValueParser[valueParserFactories.length];
+        for (int i = 0; i < valueParserFactories.length; ++i) {
+            valueParsers[i] = valueParserFactories[i].createValueParser();
+        }
+
+        fieldValueBuffer = new ArrayBackedValueStorage();
+        fieldValueBufferOutput = fieldValueBuffer.getDataOutput();
+        recBuilder = new RecordBuilder();
+        recBuilder.reset(recordType);
+        recBuilder.init();
+
+        int n = recordType.getFieldNames().length;
+        fieldTypeTags = new byte[n];
+        for (int i = 0; i < n; i++) {
+            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
+            fieldTypeTags[i] = tag.serialize();
+        }
+
+        fldIds = new int[n];
+        nameBuffers = new ArrayBackedValueStorage[n];
+        AMutableString str = new AMutableString(null);
+        for (int i = 0; i < n; i++) {
+            String name = recordType.getFieldNames()[i];
+            fldIds[i] = recBuilder.getFieldId(name);
+            if (fldIds[i] < 0) {
+                if (!recordType.isOpen()) {
+                    throw new HyracksDataException("Illegal field " + name + " in closed type " + recordType);
+                } else {
+                    nameBuffers[i] = new ArrayBackedValueStorage();
+                    fieldNameToBytes(name, str, nameBuffers[i]);
+                }
+            }
+        }
+
+        cursor = new FieldCursor(new InputStreamReader(in));
+
+    }
+
+    @Override
+    public boolean parse(DataOutput out) throws AsterixException, IOException {
+
+        if (cursor.nextRecord()) {
+            recBuilder.reset(recordType);
+            recBuilder.init();
+            for (int i = 0; i < valueParsers.length; ++i) {
+                if (!cursor.nextField()) {
+                    break;
+                }
+                fieldValueBuffer.reset();
+                fieldValueBufferOutput.writeByte(fieldTypeTags[i]);
+                valueParsers[i]
+                        .parse(cursor.buffer, cursor.fStart, cursor.fEnd - cursor.fStart, fieldValueBufferOutput);
+                if (fldIds[i] < 0) {
+                    recBuilder.addField(nameBuffers[i], fieldValueBuffer);
+                } else {
+                    recBuilder.addField(fldIds[i], fieldValueBuffer);
+                }
+            }
+            recBuilder.write(out, true);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    protected void fieldNameToBytes(String fieldName, AMutableString str, ArrayBackedValueStorage buffer)
+            throws HyracksDataException {
+        buffer.reset();
+        DataOutput out = buffer.getDataOutput();
+        str.setValue(fieldName);
+        try {
+            stringSerde.serialize(str, out);
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    protected enum State {
+        INIT,
+        IN_RECORD,
+        EOR,
+        CR,
+        EOF
+    }
+
+    protected class FieldCursor {
+        private static final int INITIAL_BUFFER_SIZE = 4096;
+        private static final int INCREMENT = 4096;
+
+        private final Reader in;
+
+        private char[] buffer;
+        private int start;
+        private int end;
+        private State state;
+
+        private int fStart;
+        private int fEnd;
+
+        public FieldCursor(Reader in) {
+            this.in = in;
+            buffer = new char[INITIAL_BUFFER_SIZE];
+            start = 0;
+            end = 0;
+            state = State.INIT;
+        }
+
+        public boolean nextRecord() throws IOException {
+            while (true) {
+                switch (state) {
+                    case INIT:
+                        boolean eof = !readMore();
+                        if (eof) {
+                            state = State.EOF;
+                            return false;
+                        } else {
+                            state = State.IN_RECORD;
+                            return true;
+                        }
+
+                    case IN_RECORD:
+                        int p = start;
+                        while (true) {
+                            if (p >= end) {
+                                int s = start;
+                                eof = !readMore();
+                                if (eof) {
+                                    state = State.EOF;
+                                    return start < end;
+                                }
+                                p -= (s - start);
+                            }
+                            char ch = buffer[p];
+                            if (ch == '\n') {
+                                start = p + 1;
+                                state = State.EOR;
+                                break;
+                            } else if (ch == '\r') {
+                                start = p + 1;
+                                state = State.CR;
+                                break;
+                            }
+                            ++p;
+                        }
+                        break;
+
+                    case CR:
+                        if (start >= end) {
+                            eof = !readMore();
+                            if (eof) {
+                                state = State.EOF;
+                                return false;
+                            }
+                        }
+                        char ch = buffer[start];
+                        if (ch == '\n') {
+                            ++start;
+                            state = State.EOR;
+                        } else {
+                            state = State.IN_RECORD;
+                            return true;
+                        }
+
+                    case EOR:
+                        if (start >= end) {
+                            eof = !readMore();
+                            if (eof) {
+                                state = State.EOF;
+                                return false;
+                            }
+                        }
+                        state = State.IN_RECORD;
+                        return start < end;
+
+                    case EOF:
+                        return false;
+                }
+            }
+        }
+
+        public boolean nextField() throws IOException {
+            switch (state) {
+                case INIT:
+                case EOR:
+                case EOF:
+                case CR:
+                    return false;
+
+                case IN_RECORD:
+                    boolean eof;
+                    int p = start;
+                    while (true) {
+                        if (p >= end) {
+                            int s = start;
+                            eof = !readMore();
+                            if (eof) {
+                                state = State.EOF;
+                                return true;
+                            }
+                            p -= (s - start);
+                        }
+                        char ch = buffer[p];
+                        if (ch == fieldDelimiter) {
+                            fStart = start;
+                            fEnd = p;
+                            start = p + 1;
+                            return true;
+                        } else if (ch == '\n') {
+                            fStart = start;
+                            fEnd = p;
+                            start = p + 1;
+                            state = State.EOR;
+                            return true;
+                        } else if (ch == '\r') {
+                            fStart = start;
+                            fEnd = p;
+                            start = p + 1;
+                            state = State.CR;
+                            return true;
+                        }
+                        ++p;
+                    }
+            }
+            throw new IllegalStateException();
+        }
+
+        protected boolean readMore() throws IOException {
+            if (start > 0) {
+                System.arraycopy(buffer, start, buffer, 0, end - start);
+            }
+            end -= start;
+            start = 0;
+
+            if (end == buffer.length) {
+                buffer = Arrays.copyOf(buffer, buffer.length + INCREMENT);
+            }
+
+            int n = in.read(buffer, end, buffer.length - end);
+            if (n < 0) {
+                return false;
+            }
+            end += n;
+            return true;
+        }
+
+        public int getfStart() {
+            return fStart;
+        }
+
+        public void setfStart(int fStart) {
+            this.fStart = fStart;
+        }
+
+        public int getfEnd() {
+            return fEnd;
+        }
+
+        public void setfEnd(int fEnd) {
+            this.fEnd = fEnd;
+        }
+
+        public char[] getBuffer() {
+            return buffer;
+        }
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataTupleParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataTupleParser.java
index db46578..c029b64 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataTupleParser.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/DelimitedDataTupleParser.java
@@ -1,331 +1,40 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.operators.file;
 
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-
-import edu.uci.ics.asterix.builders.IARecordBuilder;
-import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
 
+/**
+ * An extension of AbstractTupleParser that provides functionality for
+ * parsing delimited files.
+ */
 public class DelimitedDataTupleParser extends AbstractTupleParser {
 
-	protected final IValueParserFactory[] valueParserFactories;
-	protected final char fieldDelimiter;
-	protected final IHyracksTaskContext ctx;
-	protected final ARecordType recType;
-	protected ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
-	protected DataOutput recDos = tb.getDataOutput();
-	protected final FrameTupleAppender appender;
-	protected final ByteBuffer frame;
-	
+    private final DelimitedDataParser dataParser;
 
-	public DelimitedDataTupleParser(IHyracksTaskContext ctx,
-			ARecordType recType, IValueParserFactory[] valueParserFactories,
-			char fieldDelimter) {
-		this.valueParserFactories = valueParserFactories;
-		this.fieldDelimiter = fieldDelimter;
-		this.ctx = ctx;
-		this.recType = recType;
-		appender = new FrameTupleAppender(ctx.getFrameSize());
-		frame = ctx.allocateFrame();
-	}
+    public DelimitedDataTupleParser(IHyracksTaskContext ctx, ARecordType recType,
+            IValueParserFactory[] valueParserFactories, char fieldDelimter) {
+        super(ctx, recType);
+        dataParser = new DelimitedDataParser(recType, valueParserFactories, fieldDelimter);
+    }
 
-	@Override
-	public void parse(InputStream in, IFrameWriter writer)
-			throws HyracksDataException {
-		try {
-			IValueParser[] valueParsers = new IValueParser[valueParserFactories.length];
-			for (int i = 0; i < valueParserFactories.length; ++i) {
-				valueParsers[i] = valueParserFactories[i].createValueParser();
-			}
-		
-			appender.reset(frame, true);
-			
-
-			ArrayBackedValueStorage fieldValueBuffer = new ArrayBackedValueStorage();
-			DataOutput fieldValueBufferOutput = fieldValueBuffer
-					.getDataOutput();
-			IARecordBuilder recBuilder = new RecordBuilder();
-			recBuilder.reset(recType);
-			recBuilder.init();
-
-			int n = recType.getFieldNames().length;
-			byte[] fieldTypeTags = new byte[n];
-			for (int i = 0; i < n; i++) {
-				ATypeTag tag = recType.getFieldTypes()[i].getTypeTag();
-				fieldTypeTags[i] = tag.serialize();
-			}
-
-			int[] fldIds = new int[n];
-			ArrayBackedValueStorage[] nameBuffers = new ArrayBackedValueStorage[n];
-			AMutableString str = new AMutableString(null);
-			for (int i = 0; i < n; i++) {
-				String name = recType.getFieldNames()[i];
-				fldIds[i] = recBuilder.getFieldId(name);
-				if (fldIds[i] < 0) {
-					if (!recType.isOpen()) {
-						throw new HyracksDataException("Illegal field " + name
-								+ " in closed type " + recType);
-					} else {
-						nameBuffers[i] = new ArrayBackedValueStorage();
-						fieldNameToBytes(name, str, nameBuffers[i]);
-					}
-				}
-			}
-
-			FieldCursor cursor = new FieldCursor(new InputStreamReader(in));
-			while (cursor.nextRecord()) {
-				tb.reset();
-				recBuilder.reset(recType);
-				recBuilder.init();
-
-				for (int i = 0; i < valueParsers.length; ++i) {
-					if (!cursor.nextField()) {
-						break;
-					}
-					fieldValueBuffer.reset();
-					fieldValueBufferOutput.writeByte(fieldTypeTags[i]);
-					valueParsers[i]
-							.parse(cursor.buffer, cursor.fStart, cursor.fEnd
-									- cursor.fStart, fieldValueBufferOutput);
-					if (fldIds[i] < 0) {
-						recBuilder.addField(nameBuffers[i], fieldValueBuffer);
-					} else {
-						recBuilder.addField(fldIds[i], fieldValueBuffer);
-					}
-				}
-				recBuilder.write(recDos, true);
-				tb.addFieldEndOffset();
-
-				if (!appender.append(tb.getFieldEndOffsets(),
-						tb.getByteArray(), 0, tb.getSize())) {
-					FrameUtils.flushFrame(frame, writer);
-					appender.reset(frame, true);
-					if (!appender.append(tb.getFieldEndOffsets(),
-							tb.getByteArray(), 0, tb.getSize())) {
-						throw new IllegalStateException();
-					}
-				}
-			}
-			if (appender.getTupleCount() > 0) {
-				FrameUtils.flushFrame(frame, writer);
-			}
-		} catch (IOException e) {
-			throw new HyracksDataException(e);
-		}
-	}
-
-	protected void fieldNameToBytes(String fieldName, AMutableString str,
-			ArrayBackedValueStorage buffer) throws HyracksDataException {
-		buffer.reset();
-		DataOutput out = buffer.getDataOutput();
-		str.setValue(fieldName);
-		try {
-			stringSerde.serialize(str, out);
-		} catch (IOException e) {
-			throw new HyracksDataException(e);
-		}
-	}
-
-	protected enum State {
-		INIT, IN_RECORD, EOR, CR, EOF
-	}
-
-	protected class FieldCursor {
-		private static final int INITIAL_BUFFER_SIZE = 4096;
-		private static final int INCREMENT = 4096;
-
-		private final Reader in;
-
-		private char[] buffer;
-		private int start;
-		private int end;
-		private State state;
-
-		private int fStart;
-		private int fEnd;
-
-		public FieldCursor(Reader in) {
-			this.in = in;
-			buffer = new char[INITIAL_BUFFER_SIZE];
-			start = 0;
-			end = 0;
-			state = State.INIT;
-		}
-
-		public boolean nextRecord() throws IOException {
-			while (true) {
-				switch (state) {
-				case INIT:
-					boolean eof = !readMore();
-					if (eof) {
-						state = State.EOF;
-						return false;
-					} else {
-						state = State.IN_RECORD;
-						return true;
-					}
-
-				case IN_RECORD:
-					int p = start;
-					while (true) {
-						if (p >= end) {
-							int s = start;
-							eof = !readMore();
-							if (eof) {
-								state = State.EOF;
-								return start < end;
-							}
-							p -= (s - start);
-						}
-						char ch = buffer[p];
-						if (ch == '\n') {
-							start = p + 1;
-							state = State.EOR;
-							break;
-						} else if (ch == '\r') {
-							start = p + 1;
-							state = State.CR;
-							break;
-						}
-						++p;
-					}
-					break;
-
-				case CR:
-					if (start >= end) {
-						eof = !readMore();
-						if (eof) {
-							state = State.EOF;
-							return false;
-						}
-					}
-					char ch = buffer[start];
-					if (ch == '\n') {
-						++start;
-						state = State.EOR;
-					} else {
-						state = State.IN_RECORD;
-						return true;
-					}
-
-				case EOR:
-					if (start >= end) {
-						eof = !readMore();
-						if (eof) {
-							state = State.EOF;
-							return false;
-						}
-					}
-					state = State.IN_RECORD;
-					return start < end;
-
-				case EOF:
-					return false;
-				}
-			}
-		}
-
-		public boolean nextField() throws IOException {
-			switch (state) {
-			case INIT:
-			case EOR:
-			case EOF:
-			case CR:
-				return false;
-
-			case IN_RECORD:
-				boolean eof;
-				int p = start;
-				while (true) {
-					if (p >= end) {
-						int s = start;
-						eof = !readMore();
-						if (eof) {
-							state = State.EOF;
-							return true;
-						}
-						p -= (s - start);
-					}
-					char ch = buffer[p];
-					if (ch == fieldDelimiter) {
-						fStart = start;
-						fEnd = p;
-						start = p + 1;
-						return true;
-					} else if (ch == '\n') {
-						fStart = start;
-						fEnd = p;
-						start = p + 1;
-						state = State.EOR;
-						return true;
-					} else if (ch == '\r') {
-						fStart = start;
-						fEnd = p;
-						start = p + 1;
-						state = State.CR;
-						return true;
-					}
-					++p;
-				}
-			}
-			throw new IllegalStateException();
-		}
-
-		protected boolean readMore() throws IOException {
-			if (start > 0) {
-				System.arraycopy(buffer, start, buffer, 0, end - start);
-			}
-			end -= start;
-			start = 0;
-
-			if (end == buffer.length) {
-				buffer = Arrays.copyOf(buffer, buffer.length + INCREMENT);
-			}
-
-			int n = in.read(buffer, end, buffer.length - end);
-			if (n < 0) {
-				return false;
-			}
-			end += n;
-			return true;
-		}
-
-		public int getfStart() {
-			return fStart;
-		}
-
-		public void setfStart(int fStart) {
-			this.fStart = fStart;
-		}
-
-		public int getfEnd() {
-			return fEnd;
-		}
-
-		public void setfEnd(int fEnd) {
-			this.fEnd = fEnd;
-		}
-
-		public char[] getBuffer() {
-			return buffer;
-		}
-	}
+    @Override
+    public IDataParser getDataParser() {
+        return dataParser;
+    }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/IDataParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/IDataParser.java
new file mode 100644
index 0000000..f23aeac
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/IDataParser.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.operators.file;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.InputStream;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.ARecordType;
+
+/**
+ * Interface implemented by a parser
+ */
+public interface IDataParser {
+
+    /**
+     * Initialize the parser prior to actual parsing.
+     * 
+     * @param in
+     *            input stream to be parsed
+     * @param recordType
+     *            record type associated with input data
+     * @param datasetRec
+     *            boolean flag set to true if input data represents dataset
+     *            records.
+     * @throws AsterixException
+     * @throws IOException
+     */
+    public void initialize(InputStream in, ARecordType recordType, boolean datasetRec) throws AsterixException,
+            IOException;
+
+    /**
+     * Parse data from source input stream and output ADM records.
+     * 
+     * @param out
+     *            DataOutput instance that for writing the parser output.
+     * @return
+     * @throws AsterixException
+     * @throws IOException
+     */
+    public boolean parse(DataOutput out) throws AsterixException, IOException;
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/NtDelimitedDataTupleParserFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/NtDelimitedDataTupleParserFactory.java
index 0c93d86..86fba12 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/NtDelimitedDataTupleParserFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/NtDelimitedDataTupleParserFactory.java
@@ -1,42 +1,34 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.asterix.runtime.operators.file;
 
-import java.io.DataOutput;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-
-import edu.uci.ics.asterix.builders.IARecordBuilder;
-import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.AMutableString;
-import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParser;
 import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
 import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
 
+/**
+ * A tuple parser factory for creating a tuple parser capable of parsing
+ * delimited data.
+ */
 public class NtDelimitedDataTupleParserFactory implements ITupleParserFactory {
     private static final long serialVersionUID = 1L;
     protected ARecordType recordType;
     protected IValueParserFactory[] valueParserFactories;
     protected char fieldDelimiter;
-    @SuppressWarnings("unchecked")
-    private ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
-            .getSerializerDeserializer(BuiltinType.ASTRING);
 
     public NtDelimitedDataTupleParserFactory(ARecordType recordType, IValueParserFactory[] valueParserFactories,
             char fieldDelimiter) {
@@ -47,271 +39,7 @@
 
     @Override
     public ITupleParser createTupleParser(final IHyracksTaskContext ctx) {
-        return new ITupleParser() {
-            @Override
-            public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
-                try {
-                    IValueParser[] valueParsers = new IValueParser[valueParserFactories.length];
-                    for (int i = 0; i < valueParserFactories.length; ++i) {
-                        valueParsers[i] = valueParserFactories[i].createValueParser();
-                    }
-                    ByteBuffer frame = ctx.allocateFrame();
-                    FrameTupleAppender appender = new FrameTupleAppender(ctx.getFrameSize());
-                    appender.reset(frame, true);
-                    ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
-                    DataOutput recDos = tb.getDataOutput();
-
-                    ArrayBackedValueStorage fieldValueBuffer = new ArrayBackedValueStorage();
-                    DataOutput fieldValueBufferOutput = fieldValueBuffer.getDataOutput();
-                    IARecordBuilder recBuilder = new RecordBuilder();
-                    recBuilder.reset(recordType);
-                    recBuilder.init();
-
-                    int n = recordType.getFieldNames().length;
-                    byte[] fieldTypeTags = new byte[n];
-                    for (int i = 0; i < n; i++) {
-                        ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
-                        fieldTypeTags[i] = tag.serialize();
-                    }
-
-                    int[] fldIds = new int[n];
-                    ArrayBackedValueStorage[] nameBuffers = new ArrayBackedValueStorage[n];
-                    AMutableString str = new AMutableString(null);
-                    for (int i = 0; i < n; i++) {
-                        String name = recordType.getFieldNames()[i];
-                        fldIds[i] = recBuilder.getFieldId(name);
-                        if (fldIds[i] < 0) {
-                            if (!recordType.isOpen()) {
-                                throw new HyracksDataException("Illegal field " + name + " in closed type "
-                                        + recordType);
-                            } else {
-                                nameBuffers[i] = new ArrayBackedValueStorage();
-                                fieldNameToBytes(name, str, nameBuffers[i]);
-                            }
-                        }
-                    }
-
-                    FieldCursor cursor = new FieldCursor(new InputStreamReader(in));
-                    while (cursor.nextRecord()) {
-                        tb.reset();
-                        recBuilder.reset(recordType);
-                        recBuilder.init();
-
-                        for (int i = 0; i < valueParsers.length; ++i) {
-                            if (!cursor.nextField()) {
-                                break;
-                            }
-                            fieldValueBuffer.reset();
-                            fieldValueBufferOutput.writeByte(fieldTypeTags[i]);
-                            valueParsers[i].parse(cursor.buffer, cursor.fStart, cursor.fEnd - cursor.fStart,
-                                    fieldValueBufferOutput);
-                            if (fldIds[i] < 0) {
-                                recBuilder.addField(nameBuffers[i], fieldValueBuffer);
-                            } else {
-                                recBuilder.addField(fldIds[i], fieldValueBuffer);
-                            }
-                        }
-                        recBuilder.write(recDos, true);
-                        tb.addFieldEndOffset();
-
-                        if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                            FrameUtils.flushFrame(frame, writer);
-                            appender.reset(frame, true);
-                            if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
-                                throw new IllegalStateException();
-                            }
-                        }
-                    }
-                    if (appender.getTupleCount() > 0) {
-                        FrameUtils.flushFrame(frame, writer);
-                    }
-                } catch (IOException e) {
-                    throw new HyracksDataException(e);
-                }
-            }
-
-            private void fieldNameToBytes(String fieldName, AMutableString str, ArrayBackedValueStorage buffer)
-                    throws HyracksDataException {
-                buffer.reset();
-                DataOutput out = buffer.getDataOutput();
-                str.setValue(fieldName);
-                try {
-                    stringSerde.serialize(str, out);
-                } catch (IOException e) {
-                    throw new HyracksDataException(e);
-                }
-            }
-
-        };
-    }
-
-    private enum State {
-        INIT,
-        IN_RECORD,
-        EOR,
-        CR,
-        EOF
-    }
-
-    private class FieldCursor {
-        private static final int INITIAL_BUFFER_SIZE = 4096;
-        private static final int INCREMENT = 4096;
-
-        private final Reader in;
-
-        private char[] buffer;
-        private int start;
-        private int end;
-        private State state;
-
-        private int fStart;
-        private int fEnd;
-
-        public FieldCursor(Reader in) {
-            this.in = in;
-            buffer = new char[INITIAL_BUFFER_SIZE];
-            start = 0;
-            end = 0;
-            state = State.INIT;
-        }
-
-        public boolean nextRecord() throws IOException {
-            while (true) {
-                switch (state) {
-                    case INIT:
-                        boolean eof = !readMore();
-                        if (eof) {
-                            state = State.EOF;
-                            return false;
-                        } else {
-                            state = State.IN_RECORD;
-                            return true;
-                        }
-
-                    case IN_RECORD:
-                        int p = start;
-                        while (true) {
-                            if (p >= end) {
-                                int s = start;
-                                eof = !readMore();
-                                if (eof) {
-                                    state = State.EOF;
-                                    return start < end;
-                                }
-                                p -= (s - start);
-                            }
-                            char ch = buffer[p];
-                            if (ch == '\n') {
-                                start = p + 1;
-                                state = State.EOR;
-                                break;
-                            } else if (ch == '\r') {
-                                start = p + 1;
-                                state = State.CR;
-                                break;
-                            }
-                            ++p;
-                        }
-                        break;
-
-                    case CR:
-                        if (start >= end) {
-                            eof = !readMore();
-                            if (eof) {
-                                state = State.EOF;
-                                return false;
-                            }
-                        }
-                        char ch = buffer[start];
-                        if (ch == '\n') {
-                            ++start;
-                            state = State.EOR;
-                        } else {
-                            state = State.IN_RECORD;
-                            return true;
-                        }
-
-                    case EOR:
-                        if (start >= end) {
-                            eof = !readMore();
-                            if (eof) {
-                                state = State.EOF;
-                                return false;
-                            }
-                        }
-                        state = State.IN_RECORD;
-                        return start < end;
-
-                    case EOF:
-                        return false;
-                }
-            }
-        }
-
-        public boolean nextField() throws IOException {
-            switch (state) {
-                case INIT:
-                case EOR:
-                case EOF:
-                case CR:
-                    return false;
-
-                case IN_RECORD:
-                    boolean eof;
-                    int p = start;
-                    while (true) {
-                        if (p >= end) {
-                            int s = start;
-                            eof = !readMore();
-                            if (eof) {
-                                state = State.EOF;
-                                return true;
-                            }
-                            p -= (s - start);
-                        }
-                        char ch = buffer[p];
-                        if (ch == fieldDelimiter) {
-                            fStart = start;
-                            fEnd = p;
-                            start = p + 1;
-                            return true;
-                        } else if (ch == '\n') {
-                            fStart = start;
-                            fEnd = p;
-                            start = p + 1;
-                            state = State.EOR;
-                            return true;
-                        } else if (ch == '\r') {
-                            fStart = start;
-                            fEnd = p;
-                            start = p + 1;
-                            state = State.CR;
-                            return true;
-                        }
-                        ++p;
-                    }
-            }
-            throw new IllegalStateException();
-        }
-
-        private boolean readMore() throws IOException {
-            if (start > 0) {
-                System.arraycopy(buffer, start, buffer, 0, end - start);
-            }
-            end -= start;
-            start = 0;
-
-            if (end == buffer.length) {
-                buffer = Arrays.copyOf(buffer, buffer.length + INCREMENT);
-            }
-
-            int n = in.read(buffer, end, buffer.length - end);
-            if (n < 0) {
-                return false;
-            }
-            end += n;
-            return true;
-        }
+        return new DelimitedDataTupleParser(ctx, recordType, valueParserFactories, fieldDelimiter);
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/std/NoTupleSourceRuntimeFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/std/NoTupleSourceRuntimeFactory.java
index 11ea141..ee432f7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/std/NoTupleSourceRuntimeFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/std/NoTupleSourceRuntimeFactory.java
@@ -14,10 +14,10 @@
  */
 package edu.uci.ics.asterix.runtime.operators.std;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntime;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IPushRuntimeFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.context.RuntimeContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.operators.base.AbstractOneInputSourcePushRuntime;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntime;
+import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.operators.base.AbstractOneInputSourcePushRuntime;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 public class NoTupleSourceRuntimeFactory implements IPushRuntimeFactory {
@@ -30,7 +30,7 @@
     }
 
     @Override
-    public IPushRuntime createPushRuntime(final RuntimeContext context) {
+    public IPushRuntime createPushRuntime(IHyracksTaskContext ctx) {
         return new AbstractOneInputSourcePushRuntime() {
 
             @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/base/AbstractRunningAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/base/AbstractRunningAggregateFunctionDynamicDescriptor.java
index c8f12f0..9be4046 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/base/AbstractRunningAggregateFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/base/AbstractRunningAggregateFunctionDynamicDescriptor.java
@@ -1,10 +1,9 @@
 package edu.uci.ics.asterix.runtime.runningaggregates.base;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
-import edu.uci.ics.asterix.runtime.base.IRunningAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractRunningAggregateFunctionDynamicDescriptor implements
-        IRunningAggregateFunctionDynamicDescriptor {
+public abstract class AbstractRunningAggregateFunctionDynamicDescriptor extends AbstractFunctionDescriptor {
     private static final long serialVersionUID = 1L;
 
     public FunctionDescriptorTag getFunctionDescriptorTag() {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
index 34c6da9..a43b9bf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
@@ -2,43 +2,49 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.runningaggregates.base.AbstractRunningAggregateFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IRunningAggregateFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IRunningAggregateFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyRunningAggregateFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyRunningAggregateFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class TidRunningAggregateDescriptor extends AbstractRunningAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "tid", 0, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new TidRunningAggregateDescriptor();
+        }
+    };
 
     @Override
-    public IRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(IEvaluatorFactory[] args)
+    public ICopyRunningAggregateFunctionFactory createRunningAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
 
-        return new IRunningAggregateFunctionFactory() {
+        return new ICopyRunningAggregateFunctionFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @SuppressWarnings("unchecked")
             @Override
-            public IRunningAggregateFunction createRunningAggregateFunction(IDataOutputProvider provider)
+            public ICopyRunningAggregateFunction createRunningAggregateFunction(IDataOutputProvider provider)
                     throws AlgebricksException {
 
                 final DataOutput out = provider.getDataOutput();
 
-                return new IRunningAggregateFunction() {
+                return new ICopyRunningAggregateFunction() {
 
                     int cnt;
                     ISerializerDeserializer<AInt32> serde = AqlSerializerDeserializerProvider.INSTANCE
@@ -68,7 +74,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.TID;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/base/AbstractUnnestingFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/base/AbstractUnnestingFunctionDynamicDescriptor.java
index 52a44ae..bcab30f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/base/AbstractUnnestingFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/base/AbstractUnnestingFunctionDynamicDescriptor.java
@@ -1,9 +1,9 @@
 package edu.uci.ics.asterix.runtime.unnestingfunctions.base;
 
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
-import edu.uci.ics.asterix.runtime.base.IUnnestingFunctionDynamicDescriptor;
+import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractUnnestingFunctionDynamicDescriptor implements IUnnestingFunctionDynamicDescriptor {
+public abstract class AbstractUnnestingFunctionDynamicDescriptor extends AbstractFunctionDescriptor {
     private static final long serialVersionUID = 1L;
 
     public FunctionDescriptorTag getFunctionDescriptorTag() {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
index 1865017..dade5b19 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
@@ -2,21 +2,23 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.base.AbstractUnnestingFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
@@ -24,32 +26,36 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "range", 2, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new RangeDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.RANGE;
     }
 
     @Override
-    public IUnnestingFunctionFactory createUnnestingFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IUnnestingFunctionFactory() {
+        return new ICopyUnnestingFunctionFactory() {
 
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IUnnestingFunction createUnnestingFunction(final IDataOutputProvider provider)
+            public ICopyUnnestingFunction createUnnestingFunction(final IDataOutputProvider provider)
                     throws AlgebricksException {
-                return new IUnnestingFunction() {
+                return new ICopyUnnestingFunction() {
 
                     private DataOutput out = provider.getDataOutput();
-                    @SuppressWarnings("unchecked")
+                    @SuppressWarnings("rawtypes")
                     private ISerializerDeserializer serde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.AINT32);
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator eval0 = args[0].createEvaluator(inputVal);
-                    private IEvaluator eval1 = args[1].createEvaluator(inputVal);
+                    private ICopyEvaluator eval0 = args[0].createEvaluator(inputVal);
+                    private ICopyEvaluator eval1 = args[1].createEvaluator(inputVal);
                     private AMutableInt32 aInt32 = new AMutableInt32(0);
                     private int current;
                     private int max;
@@ -58,10 +64,10 @@
                     public void init(IFrameTupleReference tuple) throws AlgebricksException {
                         inputVal.reset();
                         eval0.evaluate(tuple);
-                        current = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        current = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
                         inputVal.reset();
                         eval1.evaluate(tuple);
-                        max = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                        max = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
                     }
 
                     @SuppressWarnings("unchecked")
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
index a325d96..c70cdf8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
@@ -1,147 +1,105 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.runtime.unnestingfunctions.std;
 
 import java.io.DataOutput;
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
-import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.EnumDeserializer;
-import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.runtime.evaluators.common.AsterixListAccessor;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.base.AbstractUnnestingFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public class ScanCollectionDescriptor extends AbstractUnnestingFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "scan-collection", 1, true);
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new ScanCollectionDescriptor();
+        }
+    };
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SCAN_COLLECTION;
     }
 
     @Override
-    public IUnnestingFunctionFactory createUnnestingFunctionFactory(final IEvaluatorFactory[] args) {
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(final ICopyEvaluatorFactory[] args) {
         return new ScanCollectionUnnestingFunctionFactory(args[0]);
     }
 
-    private static class ScanCollectionUnnestingFunctionFactory implements IUnnestingFunctionFactory {
+    public static class ScanCollectionUnnestingFunctionFactory implements ICopyUnnestingFunctionFactory {
 
         private static final long serialVersionUID = 1L;
+        private ICopyEvaluatorFactory listEvalFactory;
 
-        private IEvaluatorFactory listEvalFactory;
-        private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
-        private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
-        private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
-        private ATypeTag itemTag;
-        private byte serItemTypeTag;
-        private boolean selfDescList = false;
-
-        public ScanCollectionUnnestingFunctionFactory(IEvaluatorFactory arg) {
+        public ScanCollectionUnnestingFunctionFactory(ICopyEvaluatorFactory arg) {
             this.listEvalFactory = arg;
         }
 
         @Override
-        public IUnnestingFunction createUnnestingFunction(IDataOutputProvider provider) throws AlgebricksException {
+        public ICopyUnnestingFunction createUnnestingFunction(IDataOutputProvider provider) throws AlgebricksException {
 
             final DataOutput out = provider.getDataOutput();
 
-            return new IUnnestingFunction() {
+            return new ICopyUnnestingFunction() {
 
+                private final AsterixListAccessor listAccessor = new AsterixListAccessor();
                 private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                private IEvaluator argEval = listEvalFactory.createEvaluator(inputVal);
-                @SuppressWarnings("unchecked")
-                private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
-                        .getSerializerDeserializer(BuiltinType.ANULL);
-                private int numItems;
-                private int pos;
-                private int itemOffset;
-                private int itemLength;
-                private byte serListTag;
+                private ICopyEvaluator argEval = listEvalFactory.createEvaluator(inputVal);
+                private int itemIndex;
 
                 @Override
                 public void init(IFrameTupleReference tuple) throws AlgebricksException {
                     try {
                         inputVal.reset();
                         argEval.evaluate(tuple);
-                        byte[] serList = inputVal.getBytes();
-
-                        if (serList[0] == SER_NULL_TYPE_TAG) {
-                            nullSerde.serialize(ANull.NULL, out);
-                            return;
-                        }
-
-                        if (serList[0] != SER_ORDEREDLIST_TYPE_TAG && serList[0] != SER_UNORDEREDLIST_TYPE_TAG) {
-                            throw new AlgebricksException("Scan collection is not defined for values of type"
-                                    + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[0]));
-                        }
-
-                        serListTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal.getBytes()[0])
-                                .serialize();
-                        if (serListTag == SER_ORDEREDLIST_TYPE_TAG)
-                            numItems = AOrderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
-                        else
-                            numItems = AUnorderedListSerializerDeserializer.getNumberOfItems(inputVal.getBytes());
-
-                        itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[1]);
-                        if (itemTag == ATypeTag.ANY)
-                            selfDescList = true;
-                        else
-                            serItemTypeTag = serList[1];
-
-                        pos = 0;
-                    } catch (IOException e) {
+                        listAccessor.reset(inputVal.getByteArray(), 0);
+                        itemIndex = 0;
+                    } catch (AsterixException e) {
                         throw new AlgebricksException(e);
                     }
                 }
 
                 @Override
                 public boolean step() throws AlgebricksException {
-
                     try {
-                        if (pos < numItems) {
-                            byte[] serList = inputVal.getBytes();
-
-                            try {
-                                if (serListTag == SER_ORDEREDLIST_TYPE_TAG) {
-                                    itemOffset = AOrderedListSerializerDeserializer.getItemOffset(serList, pos);
-                                } else {
-                                    itemOffset = AUnorderedListSerializerDeserializer.getItemOffset(serList, pos);
-                                }
-                                if (selfDescList)
-                                    itemTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serList[itemOffset]);
-                                itemLength = NonTaggedFormatUtil.getFieldValueLength(serList, itemOffset, itemTag,
-                                        selfDescList);
-                                if (!selfDescList)
-                                    out.writeByte(serItemTypeTag);
-                                out.write(serList, itemOffset, itemLength + (!selfDescList ? 0 : 1));
-                            } catch (AsterixException e) {
-                                throw new AlgebricksException(e);
-                            }
-                            ++pos;
+                        if (itemIndex < listAccessor.size()) {
+                            listAccessor.writeItem(itemIndex, out);
+                            ++itemIndex;
                             return true;
-                        } else
-                            return false;
-
+                        }
                     } catch (IOException e) {
                         throw new AlgebricksException(e);
+                    } catch (AsterixException e) {
+                        throw new AlgebricksException(e);
                     }
+                    return false;
                 }
 
             };
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
index 9ca8512..67b0e9f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
@@ -4,57 +4,64 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.runtime.unnestingfunctions.base.AbstractUnnestingFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunction;
-import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IUnnestingFunctionFactory;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunction;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyUnnestingFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 
 public class SubsetCollectionDescriptor extends AbstractUnnestingFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "subset-collection", 3, true);
 
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new SubsetCollectionDescriptor();
+        }
+    };
+
     @Override
-    public IUnnestingFunctionFactory createUnnestingFunctionFactory(final IEvaluatorFactory[] args)
+    public ICopyUnnestingFunctionFactory createUnnestingFunctionFactory(final ICopyEvaluatorFactory[] args)
             throws AlgebricksException {
-        return new IUnnestingFunctionFactory() {
+        return new ICopyUnnestingFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
             @Override
-            public IUnnestingFunction createUnnestingFunction(IDataOutputProvider provider) throws AlgebricksException {
+            public ICopyUnnestingFunction createUnnestingFunction(IDataOutputProvider provider)
+                    throws AlgebricksException {
 
                 final DataOutput out = provider.getDataOutput();
 
-                return new IUnnestingFunction() {
+                return new ICopyUnnestingFunction() {
                     @SuppressWarnings("unchecked")
                     private ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
                             .getSerializerDeserializer(BuiltinType.ANULL);
                     private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
-                    private IEvaluator evalList = args[0].createEvaluator(inputVal);
-                    private IEvaluator evalStart = args[1].createEvaluator(inputVal);
-                    private IEvaluator evalLen = args[2].createEvaluator(inputVal);
+                    private ICopyEvaluator evalList = args[0].createEvaluator(inputVal);
+                    private ICopyEvaluator evalStart = args[1].createEvaluator(inputVal);
+                    private ICopyEvaluator evalLen = args[2].createEvaluator(inputVal);
                     private int numItems;
                     private int numItemsMax;
                     private int posStart;
@@ -67,16 +74,16 @@
                         try {
                             inputVal.reset();
                             evalStart.evaluate(tuple);
-                            posStart = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                            posStart = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                             inputVal.reset();
                             evalLen.evaluate(tuple);
-                            numItems = IntegerSerializerDeserializer.getInt(inputVal.getBytes(), 1);
+                            numItems = IntegerSerializerDeserializer.getInt(inputVal.getByteArray(), 1);
 
                             inputVal.reset();
                             evalList.evaluate(tuple);
 
-                            byte[] serList = inputVal.getBytes();
+                            byte[] serList = inputVal.getByteArray();
 
                             if (serList[0] == SER_NULL_TYPE_TAG) {
                                 nullSerde.serialize(ANull.NULL, out);
@@ -105,7 +112,7 @@
                     @Override
                     public boolean step() throws AlgebricksException {
                         if (posCrt < posStart + numItems && posCrt < numItemsMax) {
-                            byte[] serList = inputVal.getBytes();
+                            byte[] serList = inputVal.getByteArray();
                             int itemLength = 0;
                             try {
                                 int itemOffset = AOrderedListSerializerDeserializer.getItemOffset(serList, posCrt);
@@ -133,7 +140,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSET_COLLECTION;
     }
 
 }
diff --git a/asterix-runtime/src/main/javacc/AdmLexer.jj b/asterix-runtime/src/main/javacc/AdmLexer.jj
deleted file mode 100644
index fbab62f..0000000
--- a/asterix-runtime/src/main/javacc/AdmLexer.jj
+++ /dev/null
@@ -1,150 +0,0 @@
-options {
-
-	  
-       STATIC = false;
-	
-}
-
-PARSER_BEGIN(AdmLexer)
-
-package edu.uci.ics.asterix.adm.parser;
-
-import java.io.*;
-
-public class AdmLexer {
-
-	public static void main(String args[]) throws ParseException, TokenMgrError, IOException, FileNotFoundException {
-	   	File file = new File(args[0]);
-		Reader freader =  new BufferedReader(new InputStreamReader 
-		         (new FileInputStream(file), "UTF-8"));		
-		AdmLexer flexer = new AdmLexer(freader);
-		Token t = null;
-		do {
-		   t = flexer.next();		   
-		   System.out.println(AdmLexerConstants.tokenImage[t.kind]);
-		} while (t.kind != EOF);
-	    freader.close();
-	}
-	
-	public Token next() throws ParseException {
-	   return getNextToken();
-	}
-	
-	public String tokenKindToString(int tokenKind) {
-	   return AdmLexerConstants.tokenImage[tokenKind];
-	}
-}
-
-PARSER_END(AdmLexer)
-
-<DEFAULT>
-TOKEN :
-{
-	<NULL_LITERAL : "null">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<TRUE_LITERAL : "true">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<FALSE_LITERAL : "false">
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<INTEGER_LITERAL : ("-")? (<DIGIT>)+ >
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<#DIGIT : ["0" - "9"]>
-}
-
-
-TOKEN:
-{
-  < DOUBLE_LITERAL: 
-	      ("-")? <INTEGER> ( "." <INTEGER> )? (<EXPONENT>)? 
-	    | ("-")? "." <INTEGER>
-  >
-  | < #EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
-	| <INTEGER : (<DIGIT>)+ >
-	| <FLOAT_LITERAL: <DOUBLE_LITERAL>("f"|"F")>
- }
-
-<DEFAULT>
-TOKEN :
-{
-	<STRING_LITERAL : ("\"" (<EscapeQuot> | ~["\""])* "\"") >
-	|
-	< #EscapeQuot: "\\\"" >
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<START_RECORD : "{">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_RECORD : "}">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<COMMA : ",">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<COLON : ":">
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<START_ORDERED_LIST : "[">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_ORDERED_LIST : "]">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<START_UNORDERED_LIST : "{{">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_UNORDERED_LIST : "}}">
-}
-
-
-
-
-SKIP:
-{
-    " "
-|   "\t"
-|   "\r"
-|   "\n"
-}
diff --git a/asterix-runtime/src/main/javacc/nontagged/AdmLexer.jj b/asterix-runtime/src/main/javacc/nontagged/AdmLexer.jj
deleted file mode 100644
index f556d54..0000000
--- a/asterix-runtime/src/main/javacc/nontagged/AdmLexer.jj
+++ /dev/null
@@ -1,362 +0,0 @@
-options {
-
-	  
-       STATIC = false;
-	
-}
-
-PARSER_BEGIN(AdmLexer)
-
-package edu.uci.ics.asterix.adm.parser.nontagged;
-
-import java.io.*;
-
-public class AdmLexer {
-
-	public static void main(String args[]) throws ParseException, TokenMgrError, IOException, FileNotFoundException {
-	   	File file = new File(args[0]);
-	   	Reader freader = new BufferedReader(new InputStreamReader
-                      (new FileInputStream(file), "UTF-8"));
-		AdmLexer flexer = new AdmLexer(freader);
-		Token t = null;
-		do {
-		   t = flexer.next();		   
-		   System.out.println(AdmLexerConstants.tokenImage[t.kind]);
-		} while (t.kind != EOF);
-	    freader.close();
-	}
-	
-	public Token next() throws ParseException {
-	   return getNextToken();
-	}
-	
-	public String tokenKindToString(int tokenKind) {
-	   return AdmLexerConstants.tokenImage[tokenKind];
-	}
-}
-
-PARSER_END(AdmLexer)
-
-<DEFAULT>
-TOKEN :
-{
-	<NULL_LITERAL : "null">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<TRUE_LITERAL : "true">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<FALSE_LITERAL : "false">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<BOOLEAN_CONS : ("boolean") >	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<CONSTRUCTOR_OPEN : ("(")>	
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<CONSTRUCTOR_CLOSE : (")")>	
-}
-
-<DEFAULT>
-TOKEN:
-{
-	<INT8_LITERAL : ("-" | "+")? (<DIGIT>)+ ("i8")>
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<INT8_CONS : ("int8") >	
-}
-
-<DEFAULT>
-TOKEN:
-{
-	<INT16_LITERAL : ("-" | "+")? (<DIGIT>)+ ("i16")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<INT16_CONS : ("int16") >	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<INT32_LITERAL : ("-" | "+")? (<DIGIT>)+ ("i32")>
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<INT32_CONS : ("int32")>	
-}
-
-<DEFAULT>
-TOKEN:
-{
-	<INT64_LITERAL : ("-" | "+")? (<DIGIT>)+ ("i64")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<INT64_CONS : ("int64") >	
-}
-
-<DEFAULT>
-TOKEN:
-{
-	<INT_LITERAL : ("-" | "+")? (<DIGIT>)+>
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<CIRCLE_LITERAL : "P"<DOUBLE_LITERAL>(",") <DOUBLE_LITERAL> ("R") <DOUBLE_LITERAL> >	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<CIRCLE_CONS : ("circle") >	
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<TIMEZONE_LITERAL : (("+"|"-")<INTEGER>(":")<INTEGER>) | ("Z") >
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DATE_LITERAL : ("-")?<INTEGER>("-")<INTEGER>("-")<INTEGER> (<TIMEZONE_LITERAL>)? >
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DATE_CONS : ("date")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<TIME_LITERAL : <INTEGER>(":")<INTEGER>(":")<INTEGER> ( (":")<INTEGER>)? (<TIMEZONE_LITERAL>)? >
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<TIME_CONS : ("time")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DATETIME_LITERAL : ("-")? <INTEGER>("-")<INTEGER>("-")<INTEGER>("T")<INTEGER>(":")<INTEGER>(":")<INTEGER> ( (":")<INTEGER>)? (<TIMEZONE_LITERAL>)?>
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DATETIME_CONS : ("datetime")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DURATION_LITERAL : ("-")? ("D")(<INTEGER>("Y"))?(<INTEGER>("M"))?(<INTEGER>("D"))?(("T")(<INTEGER>("H"))?(<INTEGER>("M"))?(<INTEGER>("S"))?)?>
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DURATION_CONS : ("duration")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<#DIGIT : ["0" - "9"]>
-}
-
-TOKEN:
-{
-  < DOUBLE_LITERAL: 
-	      ("-" | "+")? <INTEGER> ( "." <INTEGER> )? (<EXPONENT>)? 
-	    | ("-" | "+")? "." <INTEGER>
-  >
-  | < #EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
-	| <INTEGER : (<DIGIT>)+ >
-	| <FLOAT_LITERAL: <DOUBLE_LITERAL>("f"|"F")>
- }
-
-
-<DEFAULT>
-TOKEN :
-{
-	<FLOAT_CONS : ("float")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<DOUBLE_CONS : ("double")>	
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<STRING_LITERAL : ("\"" (<EscapeQuot> | ~["\""])* "\"") >
-	|
-	< #EscapeQuot: "\\\"" >
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<STRING_CONS : ("string")>	
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<POINT_LITERAL : "P"<DOUBLE_LITERAL>(",")<DOUBLE_LITERAL>>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<POINT_CONS : ("point")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<POINT3D_LITERAL : "P" <DOUBLE_LITERAL>(",") <DOUBLE_LITERAL> (",") <DOUBLE_LITERAL>>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<POINT3D_CONS : ("point3d")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<LINE_LITERAL : "P"<DOUBLE_LITERAL>(",") <DOUBLE_LITERAL> ("P") <DOUBLE_LITERAL> (",") <DOUBLE_LITERAL>>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<LINE_CONS : ("line")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<POLYGON_LITERAL : "P"<DOUBLE_LITERAL>(",") <DOUBLE_LITERAL> ("P") <DOUBLE_LITERAL> (",") <DOUBLE_LITERAL> (("P") <DOUBLE_LITERAL> (",") <DOUBLE_LITERAL>)+>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<POLYGON_CONS : ("polygon")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<RECTANGLE_CONS : ("rectangle")>	
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<RECTANGLE_LITERAL : "P"<DOUBLE_LITERAL>(",") <DOUBLE_LITERAL> ("P") <DOUBLE_LITERAL> (",") <DOUBLE_LITERAL>>		
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<START_RECORD : "{">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_RECORD : "}">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<COMMA : ",">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<COLON : ":">
-}
-
-
-<DEFAULT>
-TOKEN :
-{
-	<START_ORDERED_LIST : "[">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_ORDERED_LIST : "]">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<START_UNORDERED_LIST : "{{">
-}
-
-<DEFAULT>
-TOKEN :
-{
-	<END_UNORDERED_LIST : "}}">
-}
-
-
-
-
-SKIP:
-{
-    " "
-|   "\t"
-|   "\r"
-|   "\n"
-}
diff --git a/asterix-runtime/src/main/resources/adm.grammar b/asterix-runtime/src/main/resources/adm.grammar
new file mode 100644
index 0000000..4d4158f
--- /dev/null
+++ b/asterix-runtime/src/main/resources/adm.grammar
@@ -0,0 +1,63 @@
+# LEXER GENERATOR configuration file
+# ---------------------------------------
+# Place *first* the generic configuration
+# then list your grammar.
+
+PACKAGE:          edu.uci.ics.asterix.runtime.operators.file.adm
+LEXER_NAME:       AdmLexer
+
+TOKENS:
+
+BOOLEAN_CONS   = string(boolean)
+INT8_CONS      = string(int8)
+INT16_CONS     = string(int16)
+INT32_CONS     = string(int32)
+INT64_CONS     = string(int64)
+FLOAT_CONS     = string(float)
+DOUBLE_CONS    = string(double)
+DATE_CONS      = string(date)
+DATETIME_CONS  = string(datetime)
+DURATION_CONS  = string(duration)
+STRING_CONS    = string(string)
+POINT_CONS     = string(point)
+POINT3D_CONS   = string(point3d)
+LINE_CONS      = string(line)
+POLYGON_CONS   = string(polygon)
+RECTANGLE_CONS = string(rectangle)
+CIRCLE_CONS    = string(circle)
+TIME_CONS      = string(time)
+INTERVAL_TIME_CONS      = string(interval-time)
+INTERVAL_DATE_CONS      = string(interval-date)
+INTERVAL_DATETIME_CONS  = string(interval-datetime)
+
+NULL_LITERAL   = string(null)
+TRUE_LITERAL   = string(true)
+FALSE_LITERAL  = string(false)
+
+CONSTRUCTOR_OPEN     = char(()
+CONSTRUCTOR_CLOSE    = char())
+START_RECORD         = char({)
+END_RECORD           = char(})
+COMMA                = char(\,)
+COLON                = char(:)
+START_ORDERED_LIST   = char([)
+END_ORDERED_LIST     = char(])
+START_UNORDERED_LIST = string({{)
+END_UNORDERED_LIST   = string(}})
+
+STRING_LITERAL       = char("), anythingUntil(")
+
+INT_LITERAL          = signOrNothing(), digitSequence()
+INT8_LITERAL         = token(INT_LITERAL), string(i8)
+INT16_LITERAL        = token(INT_LITERAL), string(i16)
+INT32_LITERAL        = token(INT_LITERAL), string(i32)
+INT64_LITERAL        = token(INT_LITERAL), string(i64)
+
+@EXPONENT            = caseInsensitiveChar(e), signOrNothing(), digitSequence()
+
+DOUBLE_LITERAL		 = signOrNothing(), char(.), digitSequence()
+DOUBLE_LITERAL		 = signOrNothing(), digitSequence(), char(.), digitSequence()
+DOUBLE_LITERAL		 = signOrNothing(), digitSequence(), char(.), digitSequence(), token(@EXPONENT)
+DOUBLE_LITERAL		 = signOrNothing(), digitSequence(), token(@EXPONENT)
+
+FLOAT_LITERAL		 = token(DOUBLE_LITERAL), caseInsensitiveChar(f)
diff --git a/asterix-server/pom.xml b/asterix-server/pom.xml
new file mode 100644
index 0000000..e4b8aa6
--- /dev/null
+++ b/asterix-server/pom.xml
@@ -0,0 +1,86 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>asterix-server</artifactId>
+  <name>asterix-server</name>
+  <parent>
+    <groupId>edu.uci.ics.asterix</groupId>
+    <artifactId>asterix</artifactId>
+    <version>0.0.4-SNAPSHOT</version>
+  </parent>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>appassembler-maven-plugin</artifactId>
+        <version>1.3</version>
+        <executions>
+          <execution>
+            <configuration>
+              <programs>
+                <program>
+                  <mainClass>edu.uci.ics.hyracks.control.cc.CCDriver</mainClass>
+                  <name>asterixcc</name>
+                  <commandLineArguments>
+                    <commandLineArgument>-app-cc-main-class</commandLineArgument>
+                    <commandLineArgument>edu.uci.ics.asterix.hyracks.bootstrap.CCApplicationEntryPoint</commandLineArgument>
+                  </commandLineArguments>
+                </program>
+                <program>
+                  <mainClass>edu.uci.ics.hyracks.control.nc.NCDriver</mainClass>
+                  <name>asterixnc</name>
+                  <commandLineArguments>
+                    <commandLineArgument>-app-nc-main-class</commandLineArgument>
+                    <commandLineArgument>edu.uci.ics.asterix.hyracks.bootstrap.NCApplicationEntryPoint</commandLineArgument>
+                  </commandLineArguments>
+                </program>
+              </programs>
+              <repositoryLayout>flat</repositoryLayout>
+              <repositoryName>lib</repositoryName>
+            </configuration>
+            <phase>package</phase>
+            <goals>
+              <goal>assemble</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <version>2.2-beta-5</version>
+        <executions>
+          <execution>
+            <configuration>
+              <descriptors>
+                <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+              </descriptors>
+            </configuration>
+            <phase>package</phase>
+            <goals>
+              <goal>attached</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+  <dependencies>
+  	<dependency>
+  		<groupId>edu.uci.ics.hyracks</groupId>
+  		<artifactId>hyracks-control-cc</artifactId>
+  		<type>jar</type>
+  		<scope>compile</scope>
+  	</dependency>
+  	<dependency>
+  		<groupId>edu.uci.ics.hyracks</groupId>
+  		<artifactId>hyracks-control-nc</artifactId>
+  		<type>jar</type>
+  		<scope>compile</scope>
+  	</dependency>
+  	<dependency>
+  		<groupId>edu.uci.ics.asterix</groupId>
+  		<artifactId>asterix-app</artifactId>
+  		<version>0.0.4-SNAPSHOT</version>
+  	</dependency>
+  </dependencies>
+</project>
\ No newline at end of file
diff --git a/asterix-server/src/main/assembly/binary-assembly.xml b/asterix-server/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..cd598d9
--- /dev/null
+++ b/asterix-server/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,23 @@
+<assembly>
+  <id>binary-assembly</id>
+  <formats>
+    <format>zip</format>
+    <format>dir</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <fileSets>
+    <fileSet>
+      <directory>target/appassembler/bin</directory>
+      <outputDirectory>bin</outputDirectory>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>target/appassembler/lib</directory>
+      <outputDirectory>lib</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>docs</directory>
+      <outputDirectory>docs</outputDirectory>
+    </fileSet>
+  </fileSets>
+</assembly>
diff --git a/asterix-test-framework/pom.xml b/asterix-test-framework/pom.xml
new file mode 100755
index 0000000..4042066
--- /dev/null
+++ b/asterix-test-framework/pom.xml
@@ -0,0 +1,38 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<artifactId>asterix</artifactId>
+		<groupId>edu.uci.ics.asterix</groupId>
+		<version>0.0.4-SNAPSHOT</version>
+	</parent>
+	<artifactId>asterix-test-framework</artifactId>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.jvnet.jaxb2.maven2</groupId>
+				<artifactId>maven-jaxb2-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+
+	<dependencies>
+	</dependencies>
+</project>
diff --git a/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestCaseContext.java b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestCaseContext.java
new file mode 100644
index 0000000..bb89a76
--- /dev/null
+++ b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestCaseContext.java
@@ -0,0 +1,152 @@
+package edu.uci.ics.asterix.testframework.context;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import edu.uci.ics.asterix.testframework.xml.TestCase;
+import edu.uci.ics.asterix.testframework.xml.TestCase.CompilationUnit;
+import edu.uci.ics.asterix.testframework.xml.TestGroup;
+import edu.uci.ics.asterix.testframework.xml.TestSuite;
+import edu.uci.ics.asterix.testframework.xml.TestSuiteParser;
+
+public class TestCaseContext {
+    public static final String DEFAULT_TESTSUITE_XML_NAME = "testsuite.xml";
+
+    private File tsRoot;
+
+    private TestSuite testSuite;
+
+    private TestGroup[] testGroups;
+
+    private TestCase testCase;
+
+    public TestCaseContext(File tsRoot, TestSuite testSuite, TestGroup[] testGroups, TestCase testCase) {
+        this.tsRoot = tsRoot;
+        this.testSuite = testSuite;
+        this.testGroups = testGroups;
+        this.testCase = testCase;
+    }
+
+    public File getTsRoot() {
+        return tsRoot;
+    }
+
+    public TestSuite getTestSuite() {
+        return testSuite;
+    }
+
+    public TestGroup[] getTestGroups() {
+        return testGroups;
+    }
+
+    public TestCase getTestCase() {
+        return testCase;
+    }
+
+    public List<TestFileContext> getTestFiles(CompilationUnit cUnit) {
+        List<TestFileContext> testFileCtxs = new ArrayList<TestFileContext>();
+
+        File path = tsRoot;
+        path = new File(path, testSuite.getQueryOffsetPath());
+        path = new File(path, testCase.getFilePath());
+        path = new File(path, cUnit.getName());
+
+        String fileNames[] = path.list();
+        for (String fName : fileNames) {
+            if (fName.startsWith(".")) {
+                continue;
+            }
+            
+            File testFile = new File(path, fName);
+            TestFileContext tfsc = new TestFileContext(testFile);
+            String[] nameSplits = fName.split("\\.");
+            if (nameSplits.length < 3) {
+                throw new IllegalArgumentException("Test file '" + cUnit.getName() + File.separatorChar
+                        + fName + "' does not have the proper test file name format.");
+            }
+            tfsc.setSeqNum(nameSplits[nameSplits.length - 3]);
+            tfsc.setType(nameSplits[nameSplits.length - 2]);
+            testFileCtxs.add(tfsc);
+        }
+        Collections.sort(testFileCtxs);
+        return testFileCtxs;
+    }
+
+    public List<TestFileContext> getExpectedResultFiles(CompilationUnit cUnit) {
+        List<TestFileContext> resultFileCtxs = new ArrayList<TestFileContext>();
+
+        File path = tsRoot;
+        path = new File(path, testSuite.getResultOffsetPath());
+        path = new File(path, testCase.getFilePath());
+        path = new File(path, cUnit.getOutputDir().getValue());
+
+        String fileNames[] = path.list();
+
+        if (fileNames != null) {
+            for (String fName : fileNames) {
+                if (fName.startsWith(".")) {
+                    continue;
+                }
+                
+                File testFile = new File(path, fName);
+                TestFileContext tfsc = new TestFileContext(testFile);
+                String[] nameSplits = fName.split("\\.");
+                
+                if (nameSplits.length < 3) {
+                    throw new IllegalArgumentException("Test file '" + cUnit.getName() + File.separatorChar
+                            + fName + "' does not have the proper test file name format.");
+                }
+                
+                tfsc.setSeqNum(nameSplits[nameSplits.length - 2]);
+                resultFileCtxs.add(tfsc);
+            }
+            Collections.sort(resultFileCtxs);
+        }
+        return resultFileCtxs;
+    }
+
+    public File getActualResultFile(CompilationUnit cUnit, File actualResultsBase) {
+        File path = actualResultsBase;
+        path = new File(path, testSuite.getResultOffsetPath());
+        path = new File(path, testCase.getFilePath());
+        return new File(path, cUnit.getOutputDir().getValue() + ".adm");
+    }
+
+    public static class Builder {
+        public Builder() {
+        }
+
+        public List<TestCaseContext> build(File tsRoot) throws Exception {
+            return build(tsRoot, DEFAULT_TESTSUITE_XML_NAME);
+        }
+
+        public List<TestCaseContext> build(File tsRoot, String tsXMLFilePath) throws Exception {
+            File tsFile = new File(tsRoot, tsXMLFilePath);
+            TestSuiteParser tsp = new TestSuiteParser();
+            TestSuite ts = tsp.parse(tsFile);
+            List<TestCaseContext> tccs = new ArrayList<TestCaseContext>();
+            List<TestGroup> tgPath = new ArrayList<TestGroup>();
+            addContexts(tsRoot, ts, tgPath, ts.getTestGroup(), tccs);
+            return tccs;
+        }
+
+        private void addContexts(File tsRoot, TestSuite ts, List<TestGroup> tgPath, List<TestGroup> testGroups,
+                List<TestCaseContext> tccs) {
+            for (TestGroup tg : testGroups) {
+                tgPath.add(tg);
+                addContexts(tsRoot, ts, tgPath, tccs);
+                tgPath.remove(tgPath.size() - 1);
+            }
+        }
+
+        private void addContexts(File tsRoot, TestSuite ts, List<TestGroup> tgPath, List<TestCaseContext> tccs) {
+            TestGroup tg = tgPath.get(tgPath.size() - 1);
+            for (TestCase tc : tg.getTestCase()) {
+                tccs.add(new TestCaseContext(tsRoot, ts, tgPath.toArray(new TestGroup[tgPath.size()]), tc));
+            }
+            addContexts(tsRoot, ts, tgPath, tg.getTestGroup(), tccs);
+        }
+    }
+}
\ No newline at end of file
diff --git a/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestFileContext.java b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestFileContext.java
new file mode 100644
index 0000000..fce56ff
--- /dev/null
+++ b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/context/TestFileContext.java
@@ -0,0 +1,44 @@
+package edu.uci.ics.asterix.testframework.context;
+
+import java.io.File;
+
+public class TestFileContext implements Comparable<TestFileContext> {
+    private final File file;
+
+    private String type;
+
+    private int seqNum;
+
+    public TestFileContext(File file) {
+        this.file = file;
+    }
+
+    public File getFile() {
+        return file;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public int getSeqNum() {
+        return seqNum;
+    }
+
+    public void setSeqNum(String strSeqNum) {
+        seqNum = Integer.parseInt(strSeqNum);
+    }
+
+    @Override
+    public int compareTo(TestFileContext o) {
+        if (this.seqNum > o.seqNum)
+            return 1;
+        else if (this.seqNum < o.seqNum)
+            return -1;
+        return 0;
+    }
+}
diff --git a/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/xml/TestSuiteParser.java b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/xml/TestSuiteParser.java
new file mode 100644
index 0000000..0c544ac
--- /dev/null
+++ b/asterix-test-framework/src/main/java/edu/uci/ics/asterix/testframework/xml/TestSuiteParser.java
@@ -0,0 +1,15 @@
+package edu.uci.ics.asterix.testframework.xml;
+
+import java.io.File;
+
+import javax.xml.bind.JAXBContext;
+
+public class TestSuiteParser {
+    public TestSuiteParser() {
+    }
+
+    public TestSuite parse(File testSuiteCatalog) throws Exception {
+        JAXBContext ctx = JAXBContext.newInstance(TestSuite.class);
+        return (TestSuite) ctx.createUnmarshaller().unmarshal(testSuiteCatalog);
+    }
+}
\ No newline at end of file
diff --git a/asterix-test-framework/src/main/resources/Catalog.xsd b/asterix-test-framework/src/main/resources/Catalog.xsd
new file mode 100755
index 0000000..632d6ad
--- /dev/null
+++ b/asterix-test-framework/src/main/resources/Catalog.xsd
@@ -0,0 +1,201 @@
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+   xmlns:test="urn:xml.testframework.asterix.ics.uci.edu"
+   targetNamespace="urn:xml.testframework.asterix.ics.uci.edu" elementFormDefault="qualified">
+
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+   <!-- test-suite - top level element                                       -->
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+
+   <xs:element name="test-suite">
+      <xs:annotation>
+         <xs:documentation>
+            This is the top level element for documents that use this schema.
+         </xs:documentation>
+      </xs:annotation>
+
+      <xs:complexType>
+         <xs:sequence>
+            <xs:element ref="test:test-group" maxOccurs="unbounded"/>
+         </xs:sequence>
+
+         <xs:attribute name="CatalogDesignDate" type="xs:date" use="required"/>
+
+         <xs:attribute name="ResultOffsetPath" type="test:SimplifiedRelativeFilePath" use="required">
+            <xs:annotation>
+               <xs:documentation>
+                  offset from root to results
+               </xs:documentation>
+            </xs:annotation>
+         </xs:attribute>
+
+         <xs:attribute name="QueryOffsetPath" type="test:SimplifiedRelativeFilePath"
+            use="required">
+            <xs:annotation>
+               <xs:documentation>
+                  offset from root to Query expression files
+               </xs:documentation>
+            </xs:annotation>
+         </xs:attribute>
+
+      </xs:complexType>
+
+      <xs:unique name="unique-test-group">
+         <xs:selector xpath=".//test:test-group"/>
+         <xs:field xpath="@name"/>
+      </xs:unique>
+
+   </xs:element>
+
+
+   <!-- SimplifiedRelativeFilePath type                                      -->
+
+   <xs:simpleType name="SimplifiedRelativeFilePath">
+      <xs:restriction base="xs:anyURI">
+         <xs:pattern value="([a-zA-Z0-9\-\.]+/)+"/>
+      </xs:restriction>
+   </xs:simpleType>
+
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+   <!-- test-group                                                           -->
+   <!--                                                                      -->
+   <!-- Group of test cases and test groups.                                 -->
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+
+   <xs:element name="test-group">
+      <xs:annotation>
+         <xs:documentation>
+            Group of test cases and test groups.
+         </xs:documentation>
+      </xs:annotation>
+
+      <xs:complexType>
+         <xs:sequence>
+            <xs:element name="test-case" type="test:test-case" minOccurs="0" maxOccurs="unbounded">
+               <xs:unique name="unique-expected-error">
+                  <xs:selector xpath=".//test:expected-error"/>
+                  <xs:field xpath="."/>
+               </xs:unique>
+            </xs:element>
+
+            <xs:element ref="test:test-group" minOccurs="0" maxOccurs="unbounded"/>
+         </xs:sequence>
+         <xs:attribute name="name" type="xs:string" use="required"/>
+      </xs:complexType>
+   </xs:element>
+
+
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+   <!-- test-case                                                            -->
+   <!--                                                                      -->
+   <!-- A test case to be run.                                               -->
+   <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
+
+   <xs:complexType name="test-case">
+      <xs:sequence>
+         <xs:element name="description" type="test:description"/>
+
+         <xs:element name="compilation-unit" minOccurs="1" maxOccurs="unbounded">
+            <xs:complexType>
+               <xs:sequence>
+                  <xs:element name="description" type="test:description" minOccurs="0"/>
+                  <xs:element name="output-dir" minOccurs="0">
+                     <xs:annotation>
+                        <xs:documentation>
+                           Zero or one file containing expected results for this query.
+                        </xs:documentation>
+                     </xs:annotation>
+                     <xs:complexType>
+                        <xs:simpleContent>
+                           <xs:extension base="xs:string">
+                              <xs:attribute name="compare" type="test:comparison-enum" use="required"/>
+                           </xs:extension>
+                        </xs:simpleContent>
+                     </xs:complexType>
+                  </xs:element>
+
+
+                  <!-- Zero or more expected errors for this query -->
+
+                  <xs:element name="expected-error" minOccurs="0" maxOccurs="unbounded">
+                     <xs:annotation>
+                        <xs:documentation>
+                           Zero or more expected errors for this query.
+                        </xs:documentation>
+                     </xs:annotation>
+
+                     <xs:complexType>
+                        <xs:simpleContent>
+                           <xs:extension base="test:ErrorCode">
+                           </xs:extension>
+                        </xs:simpleContent>
+                     </xs:complexType>
+                  </xs:element>
+
+               </xs:sequence>
+
+               <!-- This name is always equal to the name of the test case -->
+               <xs:attribute name="name" type="xs:string" use="required"/>
+            </xs:complexType>
+         </xs:element>
+
+         <!-- Zero or more files containing expected results for this query -->
+
+      </xs:sequence>
+
+      <!-- The filename for this query can be constructed from:              -->
+      <!--    the QueryOffsetPath                                            -->
+      <!--    the FilePath                                                   -->
+      <!--    the name                                                       -->
+      <!--    the QueryFileExtension                                         -->
+
+      <xs:attribute name="FilePath" type="test:SimplifiedRelativeFilePath" use="required"/>
+      <xs:attribute name="date" type="xs:date" use="required"/>
+   </xs:complexType>
+
+   <!-- comparison-enum type                                                 -->
+   <!--    Identify the type of comparison used to determine whether an      -->
+   <!--    expected result and an actual result match.                       -->
+
+   <xs:simpleType name="comparison-enum">
+      <xs:annotation>
+         <xs:documentation>
+            Identify the type of comparison used to determine whether an
+            expected result and an actual result match.
+         </xs:documentation>
+      </xs:annotation>
+
+      <xs:restriction base="xs:string">
+         <xs:enumeration value="XML"/>
+         <xs:enumeration value="Text"/>
+         <xs:enumeration value="Inspect"/>
+         <xs:enumeration value="Ignore"/>
+      </xs:restriction>
+   </xs:simpleType>
+
+   <!-- description type                                                     -->
+
+   <xs:complexType name="description">
+      <xs:simpleContent>
+         <xs:extension base="xs:string">
+            <xs:attribute name="last-mod" type="xs:date"/>
+         </xs:extension>
+      </xs:simpleContent>
+   </xs:complexType>
+
+
+   <!-- ErrorCode type                                                       -->
+   <!--   * is used to mean that any error code is acceptable                -->
+
+   <xs:simpleType name="ErrorCode">
+      <xs:annotation>
+         <xs:documentation>
+            * is used to mean that any error code is acceptable
+         </xs:documentation>
+      </xs:annotation>
+
+      <xs:restriction base="xs:string">
+         <xs:pattern value="\*|([A-Z]{4}[0-9]{4})"/>
+      </xs:restriction>
+   </xs:simpleType>
+   
+</xs:schema>
diff --git a/asterix-tools/pom.xml b/asterix-tools/pom.xml
index 472e077..f6868c5 100644
--- a/asterix-tools/pom.xml
+++ b/asterix-tools/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-tools</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,11 +15,35 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
+				<artifactId>maven-jar-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>aqlclient</id>
+						<goals>
+							<goal>jar</goal>
+						</goals>
+						<phase>package</phase>
+						<configuration>
+							<classifier>aqlclient</classifier>
+							<archive>
+								<manifest>
+									<MainClass>edu.uci.ics.asterix.tools.aqlclient.AqlClient</MainClass>
+								</manifest>
+							</archive>
+							<includes>
+								<include>**/uci/ics/asterix/tools/aqlclient/*</include>
+							</includes>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
 				<artifactId>maven-surefire-plugin</artifactId>
 				<version>2.7.2</version>
 				<executions>
@@ -101,11 +124,29 @@
 	<dependencies>
 		<dependency>
 			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-aql</artifactId>
+			<version>0.0.4-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
 			<artifactId>asterix-algebra</artifactId>
 			<version>0.0.4-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>org.apache.httpcomponents</groupId>
+			<artifactId>httpclient</artifactId>
+			<version>4.2.2</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.httpcomponents</groupId>
+			<artifactId>httpcore</artifactId>
+			<version>4.2.2</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
 			<version>4.8.1</version>
@@ -113,4 +154,4 @@
 		</dependency>
 	</dependencies>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/aqlclient/AqlClient.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/aqlclient/AqlClient.java
new file mode 100644
index 0000000..911b68b
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/aqlclient/AqlClient.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.tools.aqlclient;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.NameValuePair;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
+
+/**
+ * This class is to automate AQL queries for benchmarking.
+ * The code is written by Pouria for the purpose of benchmarking ASTERIX.
+ */
+public class AqlClient {
+
+    static ArrayList<String> qFiles;
+    static ArrayList<String> qNames;
+
+    /*
+     * This code loads a set of AQL-Queries and runs them against Asterix. It
+     * runs the queries for a number of iterations, specified by the user. For
+     * each query it shows the Hyracks time, Asterix Time, and Client time on
+     * the screen, while it also dumps its stats into an output file, to make it
+     * persistent for future use/reference.
+     */
+    public static void main(String args[]) throws Exception {
+        /*
+         * Arguments: args0 - Path to the file, that contains list of query
+         * files. The assumption is that each AQL query, is saved in a file, and
+         * its path is mentioned in arg[0]. Each line of arg[0] file, denotes
+         * one query file. args1 - IP-Address of CC args2 - Path to the output
+         * file, for dumping stats args3 - Number of iterations, you want the
+         * simulation to be run args4 - Set it to true, so you stats, on the
+         * console, as queries are running.
+         */
+        if (args.length != 5) {
+            System.out
+                    .println("Usage: [0]=List-of-Query-Files, [1]=ccIPadr, [2]=outputFile, [3]=Iteration# , [4]=boolean-showOnConsole ");
+            return;
+        }
+        qFiles = new ArrayList<String>();
+        qNames = new ArrayList<String>();
+
+        loadQueriesPaths(args[0]);
+        String ccUrl = args[1];
+        String outputFile = args[2];
+        int iteration = Integer.parseInt(args[3]);
+        boolean showOnConsole = Boolean.parseBoolean(args[4]);
+
+        PrintWriter pw = new PrintWriter(new File(outputFile));
+        pw.println("Code\tStatus\tName\tHyracksTime\tAsterixTime\tClientTime\n");
+
+        DefaultHttpClient httpclient = new DefaultHttpClient();
+        HttpPost httpPost = new HttpPost("http://" + ccUrl + ":19001");
+        List<NameValuePair> nvps = new ArrayList<NameValuePair>();
+        nvps.add(new BasicNameValuePair("hyracks-port", "1098"));
+        nvps.add(new BasicNameValuePair("hyracks-ip", ccUrl));
+        nvps.add(new BasicNameValuePair("display-result", "true"));
+        nvps.add(new BasicNameValuePair("query", null)); // it will get its
+                                                         // value in the loop
+                                                         // below
+
+        int ixToremove = nvps.size() - 1;
+        try {
+            for (int i = 0; i < iteration; i++) {
+                for (int x = 0; x < qFiles.size(); x++) {
+                    nvps.remove(ixToremove);
+                    String query = readQueryFromFile(qFiles.get(x));
+                    String qName = qNames.get(x);
+                    System.out.println("\n\nNow Running Query " + qName + " in iteration " + i);
+                    nvps.add(new BasicNameValuePair("query", query));
+
+                    httpPost.setEntity(new UrlEncodedFormEntity(nvps));
+                    long s = System.currentTimeMillis();
+                    HttpResponse response = httpclient.execute(httpPost);
+                    long e = System.currentTimeMillis();
+
+                    String status = response.getStatusLine().toString();
+                    HttpEntity entity = response.getEntity();
+                    String content = EntityUtils.toString(entity);
+                    EntityUtils.consume(entity);
+
+                    double[] times = extractStats(content);
+                    double endToend = ((double) (e - s)) / 1000.00; // This is
+                                                                    // the
+                                                                    // client-time
+                                                                    // (end to
+                                                                    // end delay
+                                                                    // from
+                                                                    // client's
+                                                                    // perspective)
+                    pw.print(status + "\t" + qName + "\t" + times[0] + "\t" + times[1] + "\t" + endToend + "\n");
+
+                    if (showOnConsole) {
+                        // System.out.println("Iteration "+i+"\n"+content+"\n");
+                        // //Uncomment this line, if you want to see the whole
+                        // content of the returned HTML page
+                        System.out.print(qName + "\t" + status + "\t" + times[0] + "\t" + times[1] + "\t" + endToend
+                                + " (iteration " + (i) + ")\n");
+                    }
+                }
+                pw.println();
+            }
+        } finally {
+            pw.close();
+            httpPost.releaseConnection();
+        }
+
+    }
+
+    // Assumption: It contains one query file path per line
+    private static void loadQueriesPaths(String qFilesPath) throws Exception {
+        BufferedReader in = new BufferedReader(new FileReader(qFilesPath));
+        String str;
+        while ((str = in.readLine()) != null) {
+            qFiles.add(str.trim());
+            int nameIx = str.lastIndexOf('/');
+            qNames.add(new String(str.substring(nameIx + 1)));
+        }
+        in.close();
+    }
+
+    private static String readQueryFromFile(String filePath) throws Exception {
+        BufferedReader in = new BufferedReader(new FileReader(filePath));
+        String query = "";
+        String str;
+        while ((str = in.readLine()) != null) {
+            query += str + "\n";
+        }
+        in.close();
+        return query;
+    }
+
+    private static double[] extractStats(String content) {
+        int hyracksTimeIx = content.indexOf("<PRE>Duration:");
+        if (hyracksTimeIx < 0) {
+            return new double[] { -1, -1 };
+        }
+        int endHyracksTimeIx = content.indexOf("</PRE>", hyracksTimeIx);
+        double hTime = Double.parseDouble(content.substring(hyracksTimeIx + 14, endHyracksTimeIx));
+
+        int totalTimeSIx = content.indexOf("Duration", endHyracksTimeIx);
+        if (totalTimeSIx < 0) {
+            return new double[] { hTime, -1 };
+        }
+        int totalTimeEIx = content.indexOf("\n", totalTimeSIx);
+        double tTime = Double.parseDouble(content.substring(totalTimeSIx + 10, totalTimeEIx));
+
+        return new double[] { hTime, tTime };
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
index 40ea3fd..3d28851 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
@@ -16,7 +16,7 @@
 import java.util.Map;
 import java.util.Random;
 
-import edu.uci.ics.asterix.aql.expression.Query;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.common.annotations.AutoDataGen;
@@ -35,20 +35,22 @@
 import edu.uci.ics.asterix.common.annotations.RecordDataGenAnnotation;
 import edu.uci.ics.asterix.common.annotations.TypeDataGen;
 import edu.uci.ics.asterix.common.annotations.UndeclaredFieldsDataGen;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeSignature;
 import edu.uci.ics.asterix.tools.translator.ADGenDmlTranslator;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.NotImplementedException;
-import edu.uci.ics.hyracks.algebricks.core.utils.WriteValueTools;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
 
 public class AdmDataGen {
 
@@ -913,8 +915,8 @@
 
     private final File schemaFile;
     private final File outputDir;
-    private Map<String, IAType> typeMap;
-    private Map<String, TypeDataGen> typeAnnotMap;
+    private Map<TypeSignature, IAType> typeMap;
+    private Map<TypeSignature, TypeDataGen> typeAnnotMap;
     private DataGeneratorContext dgCtx;
 
     public AdmDataGen(File schemaFile, File outputDir) {
@@ -922,24 +924,24 @@
         this.outputDir = outputDir;
     }
 
-    public void init() throws IOException, ParseException, AlgebricksException, ACIDException, MetadataException {
+    public void init() throws IOException, ParseException, AsterixException, ACIDException, MetadataException,
+            AlgebricksException {
         FileReader aql = new FileReader(schemaFile);
         AQLParser parser = new AQLParser(aql);
-        Query q = (Query) parser.Statement();
+        List<Statement> statements = parser.Statement();
         aql.close();
         // TODO: Need to fix how to use transactions here.
-        MetadataTransactionContext mdTxnCtx = new MetadataTransactionContext(-1);
-        ADGenDmlTranslator dmlt = new ADGenDmlTranslator(mdTxnCtx, q.getPrologDeclList());
+        MetadataTransactionContext mdTxnCtx = new MetadataTransactionContext(new JobId(-1));
+        ADGenDmlTranslator dmlt = new ADGenDmlTranslator(mdTxnCtx, statements);
         dmlt.translate();
-        AqlCompiledMetadataDeclarations acmd = dmlt.getCompiledDeclarations();
-        typeMap = acmd.getTypeDeclarations();
-        typeAnnotMap = acmd.getTypeDataGenMap();
+        typeMap = dmlt.getTypeMap();
+        typeAnnotMap = dmlt.getTypeDataGenMap();
         dgCtx = new DataGeneratorContext();
     }
 
     public void dataGen() throws Exception {
-        for (Map.Entry<String, IAType> me : typeMap.entrySet()) {
-            String tn = me.getKey();
+        for (Map.Entry<TypeSignature, IAType> me : typeMap.entrySet()) {
+            TypeSignature tn = me.getKey();
             TypeDataGen tdg = typeAnnotMap.get(tn);
             if (tdg.isDataGen()) {
                 IAType t = me.getValue();
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
index 29c5330..da6c419 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
@@ -33,7 +33,8 @@
     private static final int MAX_INTERESTS = 5;
     private String[] INTERESTS = { "Bass", "Music", "Databases", "Fishing", "Tennis", "Squash", "Computers", "Books",
             "Movies", "Cigars", "Wine", "Running", "Walking", "Skiing", "Basketball", "Video Games", "Cooking",
-            "Coffee", "Base Jumping", "Puzzles" };
+            "Coffee", "Base Jumping", "Puzzles", "Chess", "Programming", "Reddit", "Soccer", "Hockey", "Money",
+            "Dancing", "Brewing", "Gardening", "Hacking", "Reading"};
 
     private static final int MIN_CHILD_AGE = 0;
 
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java
new file mode 100644
index 0000000..84b989d
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapter.java
@@ -0,0 +1,279 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.dataset.adapter.FileSystemBasedAdapter;
+import edu.uci.ics.asterix.external.dataset.adapter.ITypedDatasourceAdapter;
+import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.runtime.operators.file.ADMDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.AbstractTupleParser;
+import edu.uci.ics.asterix.runtime.operators.file.DelimitedDataParser;
+import edu.uci.ics.asterix.runtime.operators.file.IDataParser;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
+import edu.uci.ics.hyracks.dataflow.common.data.parsers.IValueParserFactory;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParser;
+import edu.uci.ics.hyracks.dataflow.std.file.ITupleParserFactory;
+
+/**
+ * An adapter that simulates a feed from the contents of a source file. The file can be on the local file
+ * system or on HDFS. The feed ends when the content of the source file has been ingested.
+ */
+public class RateControlledFileSystemBasedAdapter extends FileSystemBasedAdapter implements ITypedDatasourceAdapter,
+        IManagedFeedAdapter {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final String KEY_FILE_SYSTEM = "fs";
+    public static final String LOCAL_FS = "localfs";
+    public static final String HDFS = "hdfs";
+
+    private final FileSystemBasedAdapter coreAdapter;
+    private final Map<String, String> configuration;
+    private final String fileSystem;
+    private final String format;
+
+    public RateControlledFileSystemBasedAdapter(ARecordType atype, Map<String, String> configuration) throws Exception {
+        super(atype);
+        checkRequiredArgs(configuration);
+        fileSystem = configuration.get(KEY_FILE_SYSTEM);
+        String adapterFactoryClass = null;
+        if (fileSystem.equalsIgnoreCase(LOCAL_FS)) {
+            adapterFactoryClass = "edu.uci.ics.asterix.external.adapter.factory.NCFileSystemAdapterFactory";
+        } else if (fileSystem.equals(HDFS)) {
+            adapterFactoryClass = "edu.uci.ics.asterix.external.adapter.factory.HDFSAdapterFactory";
+        } else {
+            throw new AsterixException("Unsupported file system type " + fileSystem);
+        }
+        format = configuration.get(KEY_FORMAT);
+        IGenericDatasetAdapterFactory adapterFactory = (IGenericDatasetAdapterFactory) Class.forName(
+                adapterFactoryClass).newInstance();
+        coreAdapter = (FileSystemBasedAdapter) adapterFactory.createAdapter(configuration, atype);
+        this.configuration = configuration;
+    }
+
+    private void checkRequiredArgs(Map<String, String> configuration) throws Exception {
+        if (configuration.get(KEY_FILE_SYSTEM) == null) {
+            throw new Exception("File system type not specified. (fs=?) File system could be 'localfs' or 'hdfs'");
+        }
+        if (configuration.get(IGenericDatasetAdapterFactory.KEY_TYPE_NAME) == null) {
+            throw new Exception("Record type not specified (output-type-name=?)");
+        }
+        if (configuration.get(KEY_PATH) == null) {
+            throw new Exception("File path not specified (path=?)");
+        }
+        if (configuration.get(KEY_FORMAT) == null) {
+            throw new Exception("File format not specified (format=?)");
+        }
+    }
+
+    @Override
+    public InputStream getInputStream(int partition) throws IOException {
+        return coreAdapter.getInputStream(partition);
+    }
+
+    @Override
+    public void initialize(IHyracksTaskContext ctx) throws Exception {
+        coreAdapter.initialize(ctx);
+        this.ctx = ctx;
+    }
+
+    @Override
+    public void configure(Map<String, String> arguments) throws Exception {
+        coreAdapter.configure(arguments);
+    }
+
+    @Override
+    public AdapterType getAdapterType() {
+        return coreAdapter.getAdapterType();
+    }
+
+    @Override
+    protected ITupleParser getTupleParser() throws Exception {
+        ITupleParser parser = null;
+        if (format.equals(FORMAT_DELIMITED_TEXT)) {
+            parser = getRateControlledDelimitedDataTupleParser((ARecordType) atype);
+        } else if (format.equals(FORMAT_ADM)) {
+            parser = getRateControlledADMDataTupleParser((ARecordType) atype);
+        } else {
+            throw new IllegalArgumentException(" format " + configuration.get(KEY_FORMAT) + " not supported");
+        }
+        return parser;
+
+    }
+
+    protected ITupleParser getRateControlledDelimitedDataTupleParser(ARecordType recordType) throws AsterixException {
+        ITupleParser parser;
+        int n = recordType.getFieldTypes().length;
+        IValueParserFactory[] fieldParserFactories = new IValueParserFactory[n];
+        for (int i = 0; i < n; i++) {
+            ATypeTag tag = recordType.getFieldTypes()[i].getTypeTag();
+            IValueParserFactory vpf = typeToValueParserFactMap.get(tag);
+            if (vpf == null) {
+                throw new NotImplementedException("No value parser factory for delimited fields of type " + tag);
+            }
+            fieldParserFactories[i] = vpf;
+
+        }
+        String delimiterValue = (String) configuration.get(KEY_DELIMITER);
+        if (delimiterValue != null && delimiterValue.length() > 1) {
+            throw new AsterixException("improper delimiter");
+        }
+
+        Character delimiter = delimiterValue.charAt(0);
+        parser = new RateControlledTupleParserFactory(recordType, fieldParserFactories, delimiter, configuration)
+                .createTupleParser(ctx);
+        return parser;
+    }
+
+    protected ITupleParser getRateControlledADMDataTupleParser(ARecordType recordType) throws AsterixException {
+        ITupleParser parser = null;
+        try {
+            parser = new RateControlledTupleParserFactory(recordType, configuration).createTupleParser(ctx);
+            return parser;
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+
+    }
+
+    @Override
+    public ARecordType getAdapterOutputType() {
+        return (ARecordType) atype;
+    }
+
+    @Override
+    public void alter(Map<String, String> properties) {
+        ((RateControlledTupleParser) parser).setInterTupleInterval(Long.parseLong(properties
+                .get(RateControlledTupleParser.INTER_TUPLE_INTERVAL)));
+    }
+
+    @Override
+    public void stop() {
+        ((RateControlledTupleParser) parser).stop();
+    }
+
+    @Override
+    public AlgebricksPartitionConstraint getPartitionConstraint() throws Exception {
+        return coreAdapter.getPartitionConstraint();
+    }
+}
+
+class RateControlledTupleParserFactory implements ITupleParserFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ARecordType recordType;
+    private final IDataParser dataParser;
+    private final Map<String, String> configuration;
+
+    public RateControlledTupleParserFactory(ARecordType recordType, IValueParserFactory[] valueParserFactories,
+            char fieldDelimiter, Map<String, String> configuration) {
+        this.recordType = recordType;
+        dataParser = new DelimitedDataParser(recordType, valueParserFactories, fieldDelimiter);
+        this.configuration = configuration;
+    }
+
+    public RateControlledTupleParserFactory(ARecordType recordType, Map<String, String> configuration) {
+        this.recordType = recordType;
+        dataParser = new ADMDataParser();
+        this.configuration = configuration;
+    }
+
+    @Override
+    public ITupleParser createTupleParser(IHyracksTaskContext ctx) {
+        return new RateControlledTupleParser(ctx, recordType, dataParser, configuration);
+    }
+
+}
+
+class RateControlledTupleParser extends AbstractTupleParser {
+
+    private final IDataParser dataParser;
+    private long interTupleInterval;
+    private boolean delayConfigured;
+    private boolean continueIngestion = true;
+
+    public static final String INTER_TUPLE_INTERVAL = "tuple-interval";
+
+    public RateControlledTupleParser(IHyracksTaskContext ctx, ARecordType recType, IDataParser dataParser,
+            Map<String, String> configuration) {
+        super(ctx, recType);
+        this.dataParser = dataParser;
+        String propValue = configuration.get(INTER_TUPLE_INTERVAL);
+        if (propValue != null) {
+            interTupleInterval = Long.parseLong(propValue);
+        } else {
+            interTupleInterval = 0;
+        }
+        delayConfigured = interTupleInterval != 0;
+    }
+
+    public void setInterTupleInterval(long val) {
+        this.interTupleInterval = val;
+        this.delayConfigured = val > 0;
+    }
+
+    public void stop() {
+        continueIngestion = false;
+    }
+
+    @Override
+    public IDataParser getDataParser() {
+        return dataParser;
+    }
+
+    @Override
+    public void parse(InputStream in, IFrameWriter writer) throws HyracksDataException {
+
+        appender.reset(frame, true);
+        IDataParser parser = getDataParser();
+        try {
+            parser.initialize(in, recType, true);
+            while (continueIngestion) {
+                tb.reset();
+                if (!parser.parse(tb.getDataOutput())) {
+                    break;
+                }
+                tb.addFieldEndOffset();
+                if (delayConfigured) {
+                    Thread.sleep(interTupleInterval);
+                }
+                addTupleToFrame(writer);
+            }
+            if (appender.getTupleCount() > 0) {
+                FrameUtils.flushFrame(frame, writer);
+            }
+        } catch (AsterixException ae) {
+            throw new HyracksDataException(ae);
+        } catch (IOException ioe) {
+            throw new HyracksDataException(ioe);
+        } catch (InterruptedException ie) {
+            throw new HyracksDataException(ie);
+        }
+    }
+}
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java
new file mode 100644
index 0000000..6c32acb
--- /dev/null
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/RateControlledFileSystemBasedAdapterFactory.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.tools.external.data;
+
+import java.util.Map;
+
+import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
+import edu.uci.ics.asterix.external.dataset.adapter.IDatasourceAdapter;
+import edu.uci.ics.asterix.om.types.ARecordType;
+import edu.uci.ics.asterix.om.types.IAType;
+
+/**
+ * Factory class for creating @see{RateControllerFileSystemBasedAdapter} The
+ * adapter simulates a feed from the contents of a source file. The file can be
+ * on the local file system or on HDFS. The feed ends when the content of the
+ * source file has been ingested.
+ */
+public class RateControlledFileSystemBasedAdapterFactory implements IGenericDatasetAdapterFactory {
+
+    @Override
+    public IDatasourceAdapter createAdapter(Map<String, String> configuration, IAType type) throws Exception {
+        return new RateControlledFileSystemBasedAdapter((ARecordType) type, configuration);
+    }
+
+    @Override
+    public String getName() {
+        return "file_feed";
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
index 5023ec6..526580e 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
@@ -1,30 +1,72 @@
 package edu.uci.ics.asterix.tools.translator;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.expression.DataverseDecl;
+import edu.uci.ics.asterix.aql.expression.TypeDecl;
+import edu.uci.ics.asterix.common.annotations.TypeDataGen;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.types.TypeSignature;
 import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
-import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.translator.TypeTranslator;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 public class ADGenDmlTranslator extends AbstractAqlTranslator {
 
     private final MetadataTransactionContext mdTxnCtx;
-    private List<Statement> aqlStatements;
-    private AqlCompiledMetadataDeclarations compiledDeclarations;
+    private final List<Statement> aqlStatements;
+    private Map<TypeSignature, IAType> types;
+    private Map<TypeSignature, TypeDataGen> typeDataGenMap;
 
     public ADGenDmlTranslator(MetadataTransactionContext mdTxnCtx, List<Statement> aqlStatements) {
         this.mdTxnCtx = mdTxnCtx;
         this.aqlStatements = aqlStatements;
     }
 
-    public void translate() throws AlgebricksException, MetadataException {
-        compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, false);
+    public void translate() throws AsterixException, MetadataException, AlgebricksException {
+        String defaultDataverse = getDefaultDataverse();
+        types = new HashMap<TypeSignature, IAType>();
+        typeDataGenMap = new HashMap<TypeSignature, TypeDataGen>();
+
+        for (Statement stmt : aqlStatements) {
+            if (stmt.getKind().equals(Statement.Kind.TYPE_DECL)) {
+                TypeDecl td = (TypeDecl) stmt;
+                String typeDataverse = td.getDataverseName() == null ? defaultDataverse : td.getDataverseName()
+                        .getValue();
+
+                Map<TypeSignature, IAType> typeInStmt = TypeTranslator.computeTypes(mdTxnCtx, td, typeDataverse, types);
+                types.putAll(typeInStmt);
+
+                TypeSignature signature = new TypeSignature(typeDataverse, td.getIdent().getValue());
+                TypeDataGen tdg = td.getDatagenAnnotation();
+                if (tdg != null) {
+                    typeDataGenMap.put(signature, tdg);
+                }
+            }
+        }
     }
 
-    public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
-        return compiledDeclarations;
+    private String getDefaultDataverse() {
+        for (Statement stmt : aqlStatements) {
+            if (stmt.getKind().equals(Statement.Kind.DATAVERSE_DECL)) {
+                return ((DataverseDecl) stmt).getDataverseName().getValue();
+            }
+        }
+        return null;
     }
+
+    public Map<TypeSignature, IAType> getTypeMap() {
+        return types;
+    }
+
+    public Map<TypeSignature, TypeDataGen> getTypeDataGenMap() {
+        return typeDataGenMap;
+    }
+
 }
diff --git a/asterix-transactions/pom.xml b/asterix-transactions/pom.xml
index f646356..0c4ad1c 100644
--- a/asterix-transactions/pom.xml
+++ b/asterix-transactions/pom.xml
@@ -1,13 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>asterix</artifactId>
 		<groupId>edu.uci.ics.asterix</groupId>
 		<version>0.0.4-SNAPSHOT</version>
 	</parent>
-	<groupId>edu.uci.ics.asterix</groupId>
 	<artifactId>asterix-transactions</artifactId>
-	<version>0.0.4-SNAPSHOT</version>
 
 	<build>
 		<plugins>
@@ -16,8 +15,9 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 		</plugins>
@@ -25,5 +25,22 @@
 	</build>
 
 	<dependencies>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-common</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-btree</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
+		</dependency>
 	</dependencies>
+
 </project>
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java
index 339e349..2bc9935 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java
@@ -56,5 +56,9 @@
     public ACIDException(String message) {
         super(message);
     }
+    
+    public ACIDException(Throwable cause) {
+        super(cause);
+    }
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/AbstractLSMIOOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/AbstractLSMIOOperationCallback.java
new file mode 100644
index 0000000..74f39ad
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/AbstractLSMIOOperationCallback.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
+import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
+
+public abstract class AbstractLSMIOOperationCallback implements ILSMIOOperationCallback {
+
+    protected final IndexOperationTracker opTracker;
+
+    public AbstractLSMIOOperationCallback(IndexOperationTracker opTracker) {
+        this.opTracker = opTracker;
+    }
+
+    @Override
+    public void beforeOperation() {
+        // Do nothing.
+    }
+
+    @Override
+    public void afterFinalize(ILSMComponent newComponent) {
+        opTracker.resetLSNs();
+    }
+
+    protected abstract long getComponentLSN(List<ILSMComponent> oldComponents) throws HyracksDataException;
+
+    protected void putLSNIntoMetadata(ITreeIndex treeIndex, List<ILSMComponent> oldComponents)
+            throws HyracksDataException {
+        long componentLSN = getComponentLSN(oldComponents);
+        int fileId = treeIndex.getFileId();
+        IBufferCache bufferCache = treeIndex.getBufferCache();
+        ITreeIndexMetaDataFrame metadataFrame = treeIndex.getFreePageManager().getMetaDataFrameFactory().createFrame();
+        int metadataPageId = treeIndex.getFreePageManager().getFirstMetadataPage();
+        ICachedPage metadataPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, metadataPageId), false);
+        metadataPage.acquireWriteLatch();
+        try {
+            metadataFrame.setPage(metadataPage);
+            metadataFrame.setLSN(componentLSN);
+        } finally {
+            metadataPage.releaseWriteLatch();
+            bufferCache.unpin(metadataPage);
+        }
+    }
+
+    protected long getTreeIndexLSN(ITreeIndex treeIndex) throws HyracksDataException {
+        int fileId = treeIndex.getFileId();
+        IBufferCache bufferCache = treeIndex.getBufferCache();
+        ITreeIndexMetaDataFrame metadataFrame = treeIndex.getFreePageManager().getMetaDataFrameFactory().createFrame();
+        int metadataPageId = treeIndex.getFreePageManager().getFirstMetadataPage();
+        ICachedPage metadataPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, metadataPageId), false);
+        metadataPage.acquireReadLatch();
+        try {
+            metadataFrame.setPage(metadataPage);
+            return metadataFrame.getLSN();
+        } finally {
+            metadataPage.releaseReadLatch();
+            bufferCache.unpin(metadataPage);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallback.java
new file mode 100644
index 0000000..382a6d0
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallback.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTreeImmutableComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+
+public class LSMBTreeIOOperationCallback extends AbstractLSMIOOperationCallback {
+
+    public LSMBTreeIOOperationCallback(IndexOperationTracker opTracker) {
+        super(opTracker);
+    }
+
+    @Override
+    public void afterOperation(List<ILSMComponent> oldComponents, ILSMComponent newComponent)
+            throws HyracksDataException {
+        if (oldComponents != null && newComponent != null) {
+            LSMBTreeImmutableComponent btreeComponent = (LSMBTreeImmutableComponent) newComponent;
+            putLSNIntoMetadata(btreeComponent.getBTree(), oldComponents);
+        }
+    }
+
+    @Override
+    protected long getComponentLSN(List<ILSMComponent> oldComponents) throws HyracksDataException {
+        if (oldComponents == null) {
+            // Implies a flush IO operation.
+            return opTracker.getLastLSN();
+        }
+        // Get max LSN from the oldComponents. Implies a merge IO operation.
+        long maxLSN = -1;
+        for (ILSMComponent c : oldComponents) {
+            BTree btree = ((LSMBTreeImmutableComponent) c).getBTree();
+            maxLSN = Math.max(getTreeIndexLSN(btree), maxLSN);
+        }
+        return maxLSN;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallbackFactory.java
new file mode 100644
index 0000000..a51da07
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMBTreeIOOperationCallbackFactory.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+
+public class LSMBTreeIOOperationCallbackFactory implements ILSMIOOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+    
+    public static LSMBTreeIOOperationCallbackFactory INSTANCE = new LSMBTreeIOOperationCallbackFactory();
+    
+    private LSMBTreeIOOperationCallbackFactory() {
+    }
+
+    @Override
+    public ILSMIOOperationCallback createIOOperationCallback(Object syncObj) {
+        return new LSMBTreeIOOperationCallback((IndexOperationTracker) syncObj);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallback.java
new file mode 100644
index 0000000..0782c67
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallback.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexImmutableComponent;
+
+public class LSMInvertedIndexIOOperationCallback extends AbstractLSMIOOperationCallback {
+
+    public LSMInvertedIndexIOOperationCallback(IndexOperationTracker opTracker) {
+        super(opTracker);
+    }
+
+    @Override
+    public void afterOperation(List<ILSMComponent> oldComponents, ILSMComponent newComponent)
+            throws HyracksDataException {
+        if (oldComponents != null && newComponent != null) {
+            LSMInvertedIndexImmutableComponent invIndexComponent = (LSMInvertedIndexImmutableComponent) newComponent;
+            putLSNIntoMetadata(invIndexComponent.getDeletedKeysBTree(), oldComponents);
+        }
+    }
+
+    @Override
+    protected long getComponentLSN(List<ILSMComponent> oldComponents) throws HyracksDataException {
+        if (oldComponents == null) {
+            // Implies a flush IO operation.
+            return opTracker.getLastLSN();
+        }
+        // Get max LSN from the oldComponents. Implies a merge IO operation.
+        long maxLSN = -1;
+        for (Object o : oldComponents) {
+            LSMInvertedIndexImmutableComponent invIndexComponent = (LSMInvertedIndexImmutableComponent) o;
+            maxLSN = Math.max(getTreeIndexLSN(invIndexComponent.getDeletedKeysBTree()), maxLSN);
+        }
+        return maxLSN;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallbackFactory.java
new file mode 100644
index 0000000..790c60c
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMInvertedIndexIOOperationCallbackFactory.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+
+public class LSMInvertedIndexIOOperationCallbackFactory implements ILSMIOOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public static LSMInvertedIndexIOOperationCallbackFactory INSTANCE = new LSMInvertedIndexIOOperationCallbackFactory();
+    
+    private LSMInvertedIndexIOOperationCallbackFactory() {
+    }
+    
+    @Override
+    public ILSMIOOperationCallback createIOOperationCallback(Object syncObj) {
+        return new LSMInvertedIndexIOOperationCallback((IndexOperationTracker) syncObj);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallback.java
new file mode 100644
index 0000000..b2a59b4
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallback.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTreeImmutableComponent;
+
+public class LSMRTreeIOOperationCallback extends AbstractLSMIOOperationCallback {
+
+    public LSMRTreeIOOperationCallback(IndexOperationTracker opTracker) {
+        super(opTracker);
+    }
+
+    @Override
+    public void afterOperation(List<ILSMComponent> oldComponents, ILSMComponent newComponent)
+            throws HyracksDataException {
+        if (oldComponents != null && newComponent != null) {
+            LSMRTreeImmutableComponent rtreeComponent = (LSMRTreeImmutableComponent) newComponent;
+            putLSNIntoMetadata(rtreeComponent.getRTree(), oldComponents);
+            putLSNIntoMetadata(rtreeComponent.getBTree(), oldComponents);
+        }
+    }
+
+    @Override
+    protected long getComponentLSN(List<ILSMComponent> oldComponents) throws HyracksDataException {
+        if (oldComponents == null) {
+            // Implies a flush IO operation.
+            return opTracker.getLastLSN();
+        }
+        // Get max LSN from the oldComponents. Implies a merge IO operation.
+        long maxLSN = -1;
+        for (Object o : oldComponents) {
+            LSMRTreeImmutableComponent rtreeComponent = (LSMRTreeImmutableComponent) o;
+            maxLSN = Math.max(getTreeIndexLSN(rtreeComponent.getRTree()), maxLSN);
+        }
+        return maxLSN;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallbackFactory.java
new file mode 100644
index 0000000..4b47a95
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/ioopcallbacks/LSMRTreeIOOperationCallbackFactory.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.ioopcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+
+public class LSMRTreeIOOperationCallbackFactory implements ILSMIOOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+    
+    public static LSMRTreeIOOperationCallbackFactory INSTANCE = new LSMRTreeIOOperationCallbackFactory();
+    
+    private LSMRTreeIOOperationCallbackFactory() {
+    }
+
+    @Override
+    public ILSMIOOperationCallback createIOOperationCallback(Object syncObj) {
+        return new LSMRTreeIOOperationCallback((IndexOperationTracker) syncObj);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java
new file mode 100644
index 0000000..fdbb707
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.MurmurHash128Bit;
+
+public abstract class AbstractOperationCallback {
+    
+    private final static long SEED = 0L;
+    
+    protected final DatasetId datasetId;
+    protected final int[] primaryKeyFields;
+    protected final ILockManager lockManager;
+    protected final TransactionContext txnCtx;
+    protected int transactorLocalNumActiveOperations = 0;
+    protected final long[] longHashes;
+
+    public AbstractOperationCallback(int datasetId, int[] primaryKeyFields,
+            TransactionContext txnCtx, ILockManager lockManager) {
+        this.datasetId = new DatasetId(datasetId);
+        this.primaryKeyFields = primaryKeyFields;
+        this.txnCtx = txnCtx;
+        this.lockManager = lockManager;
+        this.longHashes= new long[2];
+    }
+
+    public int computePrimaryKeyHashValue(ITupleReference tuple, int[] primaryKeyFields) {
+        MurmurHash128Bit.hash3_x64_128(tuple, primaryKeyFields, SEED, longHashes);
+        return Math.abs((int) longHashes[0]); 
+    }
+
+    public TransactionContext getTransactionContext() {
+        return txnCtx;
+    }
+
+    public int getLocalNumActiveOperations() {
+        return transactorLocalNumActiveOperations;
+    }
+
+    public void incrementLocalNumActiveOperations() {
+        transactorLocalNumActiveOperations++;
+    }
+
+    public void decrementLocalNumActiveOperations() {
+        transactorLocalNumActiveOperations--;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java
new file mode 100644
index 0000000..386dce5
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import java.io.Serializable;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+
+public abstract class AbstractOperationCallbackFactory implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    protected final JobId jobId;
+    protected final int datasetId;
+    protected final int[] primaryKeyFields;
+    protected final ITransactionSubsystemProvider txnSubsystemProvider;
+    protected final byte resourceType;
+
+    public AbstractOperationCallbackFactory(JobId jobId, int datasetId, int[] primaryKeyFields,
+            ITransactionSubsystemProvider txnSubsystemProvider, byte resourceType) {
+        this.jobId = jobId;
+        this.datasetId = datasetId;
+        this.primaryKeyFields = primaryKeyFields;
+        this.txnSubsystemProvider = txnSubsystemProvider;
+        this.resourceType = resourceType;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java
new file mode 100644
index 0000000..b3a6533
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMOperationType;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
+
+public class IndexOperationTracker implements ILSMOperationTracker {
+
+    // Number of active operations on a ILSMIndex instance.
+    private int numActiveOperations = 0;
+    private long lastLSN;
+    private long firstLSN;
+    private final ILSMIndex index;
+    private final ILSMIOOperationCallback ioOpCallback;
+    private ILSMIndexAccessor accessor;
+
+    public IndexOperationTracker(ILSMIndex index, ILSMIOOperationCallbackFactory ioOpCallbackFactory) {
+        this.index = index;
+        //TODO 
+        //This code is added to avoid NullPointException when the index's comparatorFactory is null.
+        //The null comparator factory is set in the constructor of the IndexDropOperatorDescriptor.
+        if (ioOpCallbackFactory != null) {
+            ioOpCallback = ioOpCallbackFactory.createIOOperationCallback(this);
+        } else {
+            ioOpCallback = NoOpIOOperationCallback.INSTANCE;
+        }
+        resetLSNs();
+    }
+
+    @Override
+    public void beforeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+            IModificationOperationCallback modificationCallback) throws HyracksDataException {
+        if (opType != LSMOperationType.FORCE_MODIFICATION) {
+            numActiveOperations++;
+
+            // Increment transactor-local active operations count.
+            AbstractOperationCallback opCallback = getOperationCallback(searchCallback, modificationCallback);
+            if (opCallback != null) {
+                opCallback.incrementLocalNumActiveOperations();
+            }
+        }
+    }
+
+    @Override
+    public void afterOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+            IModificationOperationCallback modificationCallback) throws HyracksDataException {
+        // Searches are immediately considered complete, because they should not prevent the execution of flushes.
+        if (searchCallback != null) {
+            completeOperation(opType, searchCallback, modificationCallback);
+        }
+    }
+
+    @Override
+    public void completeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+            IModificationOperationCallback modificationCallback) throws HyracksDataException {
+        numActiveOperations--;
+
+        // Decrement transactor-local active operations count.
+        AbstractOperationCallback opCallback = getOperationCallback(searchCallback, modificationCallback);
+        if (opCallback != null) {
+            opCallback.decrementLocalNumActiveOperations();
+        }
+        // If we need a flush, and this is the last completing operation, then schedule the flush.
+        // Once the flush has completed notify all waiting operations.
+        if (index.getFlushStatus() && numActiveOperations == 0 && opType != LSMOperationType.FLUSH) {
+            if (accessor == null) {
+                accessor = (ILSMIndexAccessor) index.createAccessor(NoOpOperationCallback.INSTANCE,
+                        NoOpOperationCallback.INSTANCE);
+            }
+            accessor.scheduleFlush(ioOpCallback);
+        }
+    }
+
+    private AbstractOperationCallback getOperationCallback(ISearchOperationCallback searchCallback,
+            IModificationOperationCallback modificationCallback) {
+
+        if (searchCallback == NoOpOperationCallback.INSTANCE || modificationCallback == NoOpOperationCallback.INSTANCE) {
+            return null;
+        }
+        if (searchCallback != null) {
+            return (AbstractOperationCallback) searchCallback;
+        } else {
+            return (AbstractOperationCallback) modificationCallback;
+        }
+    }
+
+    public ILSMIOOperationCallback getIOOperationCallback() {
+        return ioOpCallback;
+    }
+
+    public long getLastLSN() {
+        return lastLSN;
+    }
+
+    public long getFirstLSN() {
+        return firstLSN;
+    }
+
+    public void updateLastLSN(long lastLSN) {
+        if (firstLSN == -1) {
+            firstLSN = lastLSN;
+        }
+        this.lastLSN = Math.max(this.lastLSN, lastLSN);
+    }
+
+    public void resetLSNs() {
+        lastLSN = -1;
+        firstLSN = -1;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTrackerFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTrackerFactory.java
new file mode 100644
index 0000000..032a4f9
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTrackerFactory.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+
+public class IndexOperationTrackerFactory implements ILSMOperationTrackerFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ILSMIOOperationCallbackFactory ioOpCallbackFactory;
+    
+    public IndexOperationTrackerFactory(ILSMIOOperationCallbackFactory ioOpCallbackFactory) {
+        this.ioOpCallbackFactory = ioOpCallbackFactory;
+    }
+    
+    @Override
+    public ILSMOperationTracker createOperationTracker(ILSMIndex index) {
+        return new IndexOperationTracker(index, ioOpCallbackFactory);
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java
new file mode 100644
index 0000000..718ea3f
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+
+/**
+ * Assumes LSM-BTrees as primary indexes. Implements try/locking and unlocking on primary keys.
+ */
+public class PrimaryIndexInstantSearchOperationCallback extends AbstractOperationCallback implements
+        ISearchOperationCallback {
+
+    public PrimaryIndexInstantSearchOperationCallback(int datasetId, int[] entityIdFields, ILockManager lockManager,
+            TransactionContext txnCtx) {
+        super(datasetId, entityIdFields, txnCtx, lockManager);
+    }
+
+    @Override
+    public boolean proceed(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            return lockManager.instantTryLock(datasetId, pkHash, LockMode.S, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void reconcile(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            lockManager.instantLock(datasetId, pkHash, LockMode.S, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void cancel(ITupleReference tuple) throws HyracksDataException {
+        //no op
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java
new file mode 100644
index 0000000..3773950
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallbackFactory;
+
+public class PrimaryIndexInstantSearchOperationCallbackFactory extends AbstractOperationCallbackFactory implements
+        ISearchOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public PrimaryIndexInstantSearchOperationCallbackFactory(JobId jobId, int datasetId, int[] entityIdFields,
+            ITransactionSubsystemProvider txnSubsystemProvider, byte resourceType) {
+        super(jobId, datasetId, entityIdFields, txnSubsystemProvider, resourceType);
+    }
+
+    @Override
+    public ISearchOperationCallback createSearchOperationCallback(long resourceId, IHyracksTaskContext ctx)
+            throws HyracksDataException {
+        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        try {
+            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            return new PrimaryIndexInstantSearchOperationCallback(datasetId, primaryKeyFields,
+                    txnSubsystem.getLockManager(), txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java
new file mode 100644
index 0000000..824a324
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.tuples.LSMBTreeTupleReference;
+
+/**
+ * Assumes LSM-BTrees as primary indexes.
+ * Performs locking on primary keys, and also logs before/after images.
+ */
+public class PrimaryIndexModificationOperationCallback extends AbstractOperationCallback implements
+        IModificationOperationCallback {
+
+    protected final long resourceId;
+    protected final byte resourceType;
+    protected final IndexOperation indexOp;
+    protected final TransactionSubsystem txnSubsystem;
+
+    public PrimaryIndexModificationOperationCallback(int datasetId, int[] primaryKeyFields,
+            TransactionContext txnCtx, ILockManager lockManager,
+            TransactionSubsystem txnSubsystem, long resourceId, byte resourceType, IndexOperation indexOp) {
+        super(datasetId, primaryKeyFields, txnCtx, lockManager);
+        this.resourceId = resourceId;
+        this.resourceType = resourceType;
+        this.indexOp = indexOp;
+        this.txnSubsystem = txnSubsystem;
+    }
+
+    @Override
+    public void before(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            lockManager.lock(datasetId, pkHash, LockMode.X, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void found(ITupleReference before, ITupleReference after) throws HyracksDataException {
+        IndexLogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
+        int pkHash = computePrimaryKeyHashValue(after, primaryKeyFields);
+        LSMBTreeTupleReference lsmBTreeTuple = (LSMBTreeTupleReference) before;
+        IndexOperation oldOp = IndexOperation.INSERT;
+        if (before == null) {
+            oldOp = IndexOperation.NOOP;
+        }
+        if (lsmBTreeTuple != null && lsmBTreeTuple.isAntimatter()) {
+            oldOp = IndexOperation.DELETE;
+        }
+        try {
+            logger.generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
+                    oldOp, before);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java
new file mode 100644
index 0000000..c75ab6f
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+
+/**
+ * Assumes LSM-BTrees as primary indexes.
+ */
+public class PrimaryIndexModificationOperationCallbackFactory extends AbstractOperationCallbackFactory implements
+        IModificationOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final IndexOperation indexOp;
+
+    public PrimaryIndexModificationOperationCallbackFactory(JobId jobId, int datasetId, int[] primaryKeyFields,
+            ITransactionSubsystemProvider txnSubsystemProvider, IndexOperation indexOp, byte resourceType) {
+        super(jobId, datasetId, primaryKeyFields, txnSubsystemProvider, resourceType);
+        this.indexOp = indexOp;
+    }
+
+    @Override
+    public IModificationOperationCallback createModificationOperationCallback(long resourceId, Object resource,
+            IHyracksTaskContext ctx) throws HyracksDataException {
+
+        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        IIndexLifecycleManager indexLifeCycleManager = txnSubsystem.getAsterixAppRuntimeContextProvider()
+                .getIndexLifecycleManager();
+        ILSMIndex index = (ILSMIndex) indexLifeCycleManager.getIndex(resourceId);
+        if (index == null) {
+            throw new HyracksDataException("Index(id:" + resourceId + ") is not registered.");
+        }
+
+        try {
+            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            IModificationOperationCallback modCallback = new PrimaryIndexModificationOperationCallback(datasetId,
+                    primaryKeyFields, txnCtx, txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType,
+                    indexOp);
+            txnCtx.registerIndexAndCallback(index, (AbstractOperationCallback) modCallback);
+            return modCallback;
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java
new file mode 100644
index 0000000..4760307
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+
+/**
+ * Assumes LSM-BTrees as primary indexes. Implements try/locking and unlocking on primary keys.
+ */
+public class PrimaryIndexSearchOperationCallback extends AbstractOperationCallback implements ISearchOperationCallback {
+
+    public PrimaryIndexSearchOperationCallback(int datasetId, int[] entityIdFields,
+            ILockManager lockManager, TransactionContext txnCtx) {
+        super(datasetId, entityIdFields, txnCtx, lockManager);
+    }
+
+    @Override
+    public boolean proceed(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            return lockManager.tryLock(datasetId, pkHash, LockMode.S, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void reconcile(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            lockManager.lock(datasetId, pkHash, LockMode.S, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    @Override
+    public void cancel(ITupleReference tuple) throws HyracksDataException {
+        int pkHash = computePrimaryKeyHashValue(tuple, primaryKeyFields);
+        try {
+            lockManager.unlock(datasetId, pkHash, txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java
new file mode 100644
index 0000000..fc62b90
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallbackFactory;
+
+public class PrimaryIndexSearchOperationCallbackFactory extends AbstractOperationCallbackFactory implements
+        ISearchOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public PrimaryIndexSearchOperationCallbackFactory(JobId jobId, int datasetId, int[] entityIdFields,
+            ITransactionSubsystemProvider txnSubsystemProvider, byte resourceType) {
+        super(jobId, datasetId, entityIdFields, txnSubsystemProvider, resourceType);
+    }
+
+    @Override
+    public ISearchOperationCallback createSearchOperationCallback(long resourceId, IHyracksTaskContext ctx)
+            throws HyracksDataException {
+        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        try {
+            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            return new PrimaryIndexSearchOperationCallback(datasetId, primaryKeyFields, txnSubsystem.getLockManager(),
+                    txnCtx);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java
new file mode 100644
index 0000000..092f99c
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+
+/**
+ * Secondary-index modifications do not require any locking.
+ * We assume that the modification of the corresponding primary index has already taken an appropriate lock.
+ * This callback performs logging of the before and/or after images for secondary indexes.
+ */
+public class SecondaryIndexModificationOperationCallback extends AbstractOperationCallback implements
+        IModificationOperationCallback {
+
+    protected final long resourceId;
+    protected final byte resourceType;
+    protected final IndexOperation indexOp;
+    protected final IndexOperation oldOp;
+    protected final TransactionSubsystem txnSubsystem;
+
+    public SecondaryIndexModificationOperationCallback(int datasetId, int[] primaryKeyFields,
+            TransactionContext txnCtx, ILockManager lockManager,
+            TransactionSubsystem txnSubsystem, long resourceId, byte resourceType, IndexOperation indexOp) {
+        super(datasetId, primaryKeyFields, txnCtx, lockManager);
+        this.resourceId = resourceId;
+        this.resourceType = resourceType;
+        this.indexOp = indexOp;
+        oldOp = (indexOp == IndexOperation.DELETE) ? IndexOperation.INSERT : IndexOperation.DELETE;
+        this.txnSubsystem = txnSubsystem;
+    }
+
+    @Override
+    public void before(ITupleReference tuple) throws HyracksDataException {
+        // Do nothing.
+    }
+
+    @Override
+    public void found(ITupleReference before, ITupleReference after) throws HyracksDataException {
+        IndexLogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
+        int pkHash = computePrimaryKeyHashValue(after, primaryKeyFields);
+        try {
+            logger.generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
+                    oldOp, before);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
new file mode 100644
index 0000000..672b434
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+
+public class SecondaryIndexModificationOperationCallbackFactory extends AbstractOperationCallbackFactory implements
+        IModificationOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final IndexOperation indexOp;
+
+    public SecondaryIndexModificationOperationCallbackFactory(JobId jobId, int datasetId, int[] primaryKeyFields,
+            ITransactionSubsystemProvider txnSubsystemProvider, IndexOperation indexOp, byte resourceType) {
+        super(jobId, datasetId, primaryKeyFields, txnSubsystemProvider, resourceType);
+        this.indexOp = indexOp;
+    }
+
+    @Override
+    public IModificationOperationCallback createModificationOperationCallback(long resourceId, Object resource,
+            IHyracksTaskContext ctx) throws HyracksDataException {
+
+        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        IIndexLifecycleManager indexLifeCycleManager = txnSubsystem.getAsterixAppRuntimeContextProvider()
+                .getIndexLifecycleManager();
+        ILSMIndex index = (ILSMIndex) indexLifeCycleManager.getIndex(resourceId);
+        if (index == null) {
+            throw new HyracksDataException("Index(id:" + resourceId + ") is not registered.");
+        }
+
+        try {
+            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            return new SecondaryIndexModificationOperationCallback(datasetId, primaryKeyFields, txnCtx,
+                    txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType, indexOp);
+        } catch (ACIDException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java
new file mode 100644
index 0000000..c53b651
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+
+/**
+ * Secondary index searches perform no locking at all.
+ */
+public class SecondaryIndexSearchOperationCallback extends AbstractOperationCallback implements
+        ISearchOperationCallback {
+
+    public SecondaryIndexSearchOperationCallback() {
+        super(-1, null, null, null);
+    }
+
+    @Override
+    public boolean proceed(ITupleReference tuple) throws HyracksDataException {
+        return true;
+    }
+
+    @Override
+    public void reconcile(ITupleReference tuple) throws HyracksDataException {
+        // Do nothing.
+    }
+
+    @Override
+    public void cancel(ITupleReference tuple) throws HyracksDataException {
+        // Do nothing.
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallbackFactory.java
new file mode 100644
index 0000000..7172e06
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallbackFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.opcallbacks;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallbackFactory;
+
+public class SecondaryIndexSearchOperationCallbackFactory implements ISearchOperationCallbackFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public ISearchOperationCallback createSearchOperationCallback(long resourceId, IHyracksTaskContext ctx)
+            throws HyracksDataException {
+        return new SecondaryIndexSearchOperationCallback();
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java
new file mode 100644
index 0000000..d2aa164
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java
@@ -0,0 +1,14 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.io.Serializable;
+
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+
+public interface ILocalResourceMetadata extends Serializable {
+
+    public ILSMIndex createIndexInstance(IAsterixAppRuntimeContextProvider runtimeContextProvider, String filePath,
+            int partition) throws HyracksDataException;
+    
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
new file mode 100644
index 0000000..e037e95
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
@@ -0,0 +1,58 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.io.File;
+
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTree;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
+
+public class LSMBTreeLocalResourceMetadata implements ILocalResourceMetadata {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ITypeTraits[] typeTraits;
+    private final IBinaryComparatorFactory[] cmpFactories;
+    private final int[] bloomFilterKeyFields;
+    private final int memPageSize;
+    private final int memNumPages;
+
+    public LSMBTreeLocalResourceMetadata(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories,
+            int[] bloomFilterKeyFields, boolean isPrimary, int memPageSize, int memNumPages) {
+        this.typeTraits = typeTraits;
+        this.cmpFactories = cmpFactories;
+        this.bloomFilterKeyFields = bloomFilterKeyFields;
+        this.memPageSize = memPageSize;
+        this.memNumPages = memNumPages;
+    }
+
+    @Override
+    public ILSMIndex createIndexInstance(IAsterixAppRuntimeContextProvider runtimeContextProvider, String filePath,
+            int partition) {
+        FileReference file = new FileReference(new File(filePath));
+        IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), memPageSize,
+                memNumPages, new TransientFileMapManager());
+        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
+        IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(memNumPages, metaDataFrameFactory);
+        LSMBTree lsmBTree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager,
+                runtimeContextProvider.getIOManager(), file, runtimeContextProvider.getBufferCache(),
+                runtimeContextProvider.getFileMapManager(), typeTraits, cmpFactories, bloomFilterKeyFields,
+                runtimeContextProvider.getLSMMergePolicy(),
+                runtimeContextProvider.getLSMBTreeOperationTrackerFactory(),
+                runtimeContextProvider.getLSMIOScheduler(),
+                runtimeContextProvider.getLSMBTreeIOOperationCallbackProvider(), partition);
+        return lsmBTree;
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java
new file mode 100644
index 0000000..894fc16
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java
@@ -0,0 +1,77 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
+import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.InvertedIndexUtils;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+
+public class LSMInvertedIndexLocalResourceMetadata implements ILocalResourceMetadata {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ITypeTraits[] invListTypeTraits;
+    private final IBinaryComparatorFactory[] invListCmpFactories;
+    private final ITypeTraits[] tokenTypeTraits;
+    private final IBinaryComparatorFactory[] tokenCmpFactories;
+    private final IBinaryTokenizerFactory tokenizerFactory;
+    private final int memPageSize;
+    private final int memNumPages;
+    private final boolean isPartitioned;
+
+    public LSMInvertedIndexLocalResourceMetadata(ITypeTraits[] invListTypeTraits,
+            IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
+            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory, int memPageSize,
+            int memNumPages, boolean isPartitioned) {
+        this.invListTypeTraits = invListTypeTraits;
+        this.invListCmpFactories = invListCmpFactories;
+        this.tokenTypeTraits = tokenTypeTraits;
+        this.tokenCmpFactories = tokenCmpFactories;
+        this.tokenizerFactory = tokenizerFactory;
+        this.memPageSize = memPageSize;
+        this.memNumPages = memNumPages;
+        this.isPartitioned = isPartitioned;
+    }
+
+    @Override
+    public ILSMIndex createIndexInstance(IAsterixAppRuntimeContextProvider runtimeContextProvider, String filePath,
+            int partition) throws HyracksDataException {
+
+        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
+        IInMemoryBufferCache memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(), memPageSize,
+                memNumPages);
+        IInMemoryFreePageManager memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages,
+                metaDataFrameFactory);
+        try {
+            if (isPartitioned) {
+                return InvertedIndexUtils.createPartitionedLSMInvertedIndex(memBufferCache, memFreePageManager,
+                        runtimeContextProvider.getFileMapManager(), invListTypeTraits, invListCmpFactories,
+                        tokenTypeTraits, tokenCmpFactories, tokenizerFactory, runtimeContextProvider.getBufferCache(),
+                        runtimeContextProvider.getIOManager(), filePath, runtimeContextProvider.getLSMMergePolicy(),
+                        runtimeContextProvider.getLSMInvertedIndexOperationTrackerFactory(),
+                        runtimeContextProvider.getLSMIOScheduler(),
+                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(), partition);
+            } else {
+                return InvertedIndexUtils.createLSMInvertedIndex(memBufferCache, memFreePageManager,
+                        runtimeContextProvider.getFileMapManager(), invListTypeTraits, invListCmpFactories,
+                        tokenTypeTraits, tokenCmpFactories, tokenizerFactory, runtimeContextProvider.getBufferCache(),
+                        runtimeContextProvider.getIOManager(), filePath, runtimeContextProvider.getLSMMergePolicy(),
+                        runtimeContextProvider.getLSMInvertedIndexOperationTrackerFactory(),
+                        runtimeContextProvider.getLSMIOScheduler(),
+                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(), partition);
+            }
+        } catch (IndexException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java
new file mode 100644
index 0000000..1705dd3
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java
@@ -0,0 +1,73 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.io.File;
+
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
+import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.utils.LSMRTreeUtils;
+import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+
+public class LSMRTreeLocalResourceMetadata implements ILocalResourceMetadata {
+
+    private static final long serialVersionUID = 1L;
+
+    private final ITypeTraits[] typeTraits;
+    private final IBinaryComparatorFactory[] rtreeCmpFactories;
+    private final IBinaryComparatorFactory[] btreeCmpFactories;
+    private final IPrimitiveValueProviderFactory[] valueProviderFactories;
+    private final RTreePolicyType rtreePolicyType;
+    private final ILinearizeComparatorFactory linearizeCmpFactory;
+    private final int memPageSize;
+    private final int memNumPages;
+
+    public LSMRTreeLocalResourceMetadata(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
+            IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
+            RTreePolicyType rtreePolicyType, ILinearizeComparatorFactory linearizeCmpFactory, int memPageSize,
+            int memNumPages) {
+        this.typeTraits = typeTraits;
+        this.rtreeCmpFactories = rtreeCmpFactories;
+        this.btreeCmpFactories = btreeCmpFactories;
+        this.valueProviderFactories = valueProviderFactories;
+        this.rtreePolicyType = rtreePolicyType;
+        this.linearizeCmpFactory = linearizeCmpFactory;
+        this.memPageSize = memPageSize;
+        this.memNumPages = memNumPages;
+    }
+
+    @Override
+    public ILSMIndex createIndexInstance(IAsterixAppRuntimeContextProvider runtimeContextProvider, String filePath,
+            int partition) throws HyracksDataException {
+        FileReference file = new FileReference(new File(filePath));
+        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
+        IInMemoryBufferCache memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(), memPageSize,
+                memNumPages);
+        IInMemoryFreePageManager memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages,
+                metaDataFrameFactory);
+
+        try {
+            return LSMRTreeUtils.createLSMTree(memBufferCache, memFreePageManager,
+                    runtimeContextProvider.getIOManager(), file, runtimeContextProvider.getBufferCache(),
+                    runtimeContextProvider.getFileMapManager(), typeTraits, rtreeCmpFactories, btreeCmpFactories,
+                    valueProviderFactories, rtreePolicyType, runtimeContextProvider.getLSMMergePolicy(),
+                    runtimeContextProvider.getLSMRTreeOperationTrackerFactory(),
+                    runtimeContextProvider.getLSMIOScheduler(),
+                    runtimeContextProvider.getLSMRTreeIOOperationCallbackProvider(), linearizeCmpFactory, partition);
+        } catch (TreeIndexException e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java
new file mode 100644
index 0000000..ed0f79f
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java
@@ -0,0 +1,20 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactory;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+
+public class PersistentLocalResourceFactory implements ILocalResourceFactory {
+    
+    private final ILocalResourceMetadata localResourceMetadata;
+    private final int resourceType;
+
+    public PersistentLocalResourceFactory(ILocalResourceMetadata localResourceMetadata, int resourceType) {
+        this.localResourceMetadata = localResourceMetadata;
+        this.resourceType = resourceType;
+    }
+
+    @Override
+    public LocalResource createLocalResource(long resourceId, String resourceName, int partition) {
+        return new LocalResource(resourceId, resourceName, partition, resourceType, localResourceMetadata);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactoryProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactoryProvider.java
new file mode 100644
index 0000000..4157c32
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactoryProvider.java
@@ -0,0 +1,21 @@
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactory;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceFactoryProvider;
+
+public class PersistentLocalResourceFactoryProvider implements ILocalResourceFactoryProvider {
+
+    private static final long serialVersionUID = 1L;
+    private final ILocalResourceMetadata localResourceMetadata;
+    private final int resourceType;
+
+    public PersistentLocalResourceFactoryProvider(ILocalResourceMetadata localResourceMetadata, int resourceType) {
+        this.localResourceMetadata = localResourceMetadata;
+        this.resourceType = resourceType;
+    }
+
+    @Override
+    public ILocalResourceFactory getLocalResourceFactory() {
+        return new PersistentLocalResourceFactory(localResourceMetadata, resourceType);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java
new file mode 100644
index 0000000..838dc6d
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java
@@ -0,0 +1,256 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+
+public class PersistentLocalResourceRepository implements ILocalResourceRepository {
+
+    private final String mountPoint;
+    private static final String ROOT_METADATA_DIRECTORY = "asterix_root_metadata/";
+    private static final String ROOT_METADATA_FILE_NAME_PREFIX = ".asterix_root_metadata_";
+    private static final long ROOT_LOCAL_RESOURCE_ID = -4321;
+    private static final String METADATA_FILE_NAME = ".metadata";
+    private Map<String, LocalResource> name2ResourceMap = new HashMap<String, LocalResource>();
+    private Map<Long, LocalResource> id2ResourceMap = new HashMap<Long, LocalResource>();
+    private String rootMetadataFileName;
+    private String rootDir;
+
+    public PersistentLocalResourceRepository(String mountPoint) throws HyracksDataException {
+        File mountPointDir = new File(mountPoint);
+        if (!mountPointDir.exists()) {
+            throw new HyracksDataException(mountPointDir.getAbsolutePath() + "doesn't exist.");
+        }
+        if (!mountPoint.endsWith(System.getProperty("file.separator"))) {
+            this.mountPoint = new String(mountPoint + System.getProperty("file.separator"));
+        } else {
+            this.mountPoint = new String(mountPoint);
+        }
+    }
+
+    public void initialize(String nodeId, String rootDir, boolean isNewUniverse, ResourceIdFactory resourceIdFactory)
+            throws HyracksDataException {
+        LocalResource rootLocalResource = null;
+
+        //#. if the rootMetadataFile doesn't exist, create it and return.
+        rootMetadataFileName = new String(mountPoint + ROOT_METADATA_DIRECTORY + ROOT_METADATA_FILE_NAME_PREFIX
+                + nodeId);
+        File rootMetadataFile = new File(rootMetadataFileName);
+        if (isNewUniverse) {
+            File rootMetadataDir = new File(mountPoint + ROOT_METADATA_DIRECTORY);
+            if (!rootMetadataDir.exists()) {
+                rootMetadataDir.mkdir();
+            }
+
+            rootMetadataFile.delete();
+            if (rootDir.startsWith(System.getProperty("file.separator"))) {
+                this.rootDir = new String(mountPoint + rootDir.substring(System.getProperty("file.separator").length()));
+            } else {
+                this.rootDir = new String(mountPoint + rootDir);
+            }
+            rootLocalResource = new LocalResource(ROOT_LOCAL_RESOURCE_ID, rootMetadataFileName, 0, 0, this.rootDir);
+            insert(rootLocalResource);
+            return;
+        }
+
+        //#. if the rootMetadataFile exists, read it and set this.rootDir.
+        rootLocalResource = readLocalResource(rootMetadataFile);
+        this.rootDir = (String) rootLocalResource.getResourceObject();
+
+        //#. load all local resources. 
+        File rootDirFile = new File(this.rootDir);
+        if (!rootDirFile.exists()) {
+            throw new HyracksDataException(rootDirFile.getAbsolutePath() + "doesn't exist.");
+        }
+
+        FilenameFilter filter = new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                if (name.equalsIgnoreCase(METADATA_FILE_NAME)) {
+                    return true;
+                } else {
+                    return false;
+                }
+            }
+        };
+
+        long maxResourceId = 0;
+        File[] dataverseFileList = rootDirFile.listFiles();
+        if (dataverseFileList == null) {
+            throw new HyracksDataException("Metadata dataverse doesn't exist.");
+        }
+        for (File dataverseFile : dataverseFileList) {
+            if (dataverseFile.isDirectory()) {
+                File[] indexFileList = dataverseFile.listFiles();
+                if (indexFileList != null) {
+                    for (File indexFile : indexFileList) {
+                        if (indexFile.isDirectory()) {
+                            File[] metadataFiles = indexFile.listFiles(filter);
+                            if (metadataFiles != null) {
+                                for (File metadataFile : metadataFiles) {
+                                    LocalResource localResource = readLocalResource(metadataFile);
+                                    id2ResourceMap.put(localResource.getResourceId(), localResource);
+                                    name2ResourceMap.put(localResource.getResourceName(), localResource);
+                                    maxResourceId = Math.max(localResource.getResourceId(), maxResourceId);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        resourceIdFactory.initId(maxResourceId + 1);
+    }
+
+    @Override
+    public LocalResource getResourceById(long id) throws HyracksDataException {
+        return id2ResourceMap.get(id);
+    }
+
+    @Override
+    public LocalResource getResourceByName(String name) throws HyracksDataException {
+        return name2ResourceMap.get(name);
+    }
+
+    @Override
+    public synchronized void insert(LocalResource resource) throws HyracksDataException {
+        long id = resource.getResourceId();
+
+        if (id2ResourceMap.containsKey(id)) {
+            throw new HyracksDataException("Duplicate resource");
+        }
+
+        if (resource.getResourceId() != ROOT_LOCAL_RESOURCE_ID) {
+            id2ResourceMap.put(id, resource);
+            name2ResourceMap.put(resource.getResourceName(), resource);
+        }
+
+        FileOutputStream fos = null;
+        ObjectOutputStream oosToFos = null;
+        try {
+            fos = new FileOutputStream(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+            oosToFos = new ObjectOutputStream(fos);
+            oosToFos.writeObject(resource);
+            oosToFos.flush();
+        } catch (IOException e) {
+            throw new HyracksDataException(e);
+        } finally {
+            if (oosToFos != null) {
+                try {
+                    oosToFos.close();
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+            if (oosToFos == null && fos != null) {
+                try {
+                    fos.close();
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+        }
+    }
+
+    @Override
+    public synchronized void deleteResourceById(long id) throws HyracksDataException {
+        LocalResource resource = id2ResourceMap.get(id);
+        if (resource == null) {
+            throw new HyracksDataException("Resource doesn't exist");
+        }
+        id2ResourceMap.remove(id);
+        name2ResourceMap.remove(resource.getResourceName());
+        File file = new File(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+        file.delete();
+    }
+
+    @Override
+    public synchronized void deleteResourceByName(String name) throws HyracksDataException {
+        LocalResource resource = name2ResourceMap.get(name);
+        if (resource == null) {
+            throw new HyracksDataException("Resource doesn't exist");
+        }
+        id2ResourceMap.remove(resource.getResourceId());
+        name2ResourceMap.remove(name);
+        File file = new File(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+        file.delete();
+    }
+
+    @Override
+    public List<LocalResource> getAllResources() throws HyracksDataException {
+        List<LocalResource> resources = new ArrayList<LocalResource>();
+        for (LocalResource resource : id2ResourceMap.values()) {
+            resources.add(resource);
+        }
+        return resources;
+    }
+
+    private String getFileName(String mountPoint, String baseDir, long resourceId) {
+
+        if (resourceId == ROOT_LOCAL_RESOURCE_ID) {
+            return baseDir;
+        } else {
+            String fileName = new String(mountPoint);
+            if (!baseDir.endsWith(System.getProperty("file.separator"))) {
+                baseDir += System.getProperty("file.separator");
+            }
+            fileName += baseDir + METADATA_FILE_NAME;
+            return fileName;
+        }
+    }
+
+    private LocalResource readLocalResource(File file) throws HyracksDataException {
+        FileInputStream fis = null;
+        ObjectInputStream oisFromFis = null;
+
+        try {
+            fis = new FileInputStream(file);
+            oisFromFis = new ObjectInputStream(fis);
+            LocalResource resource = (LocalResource) oisFromFis.readObject();
+            return resource;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        } finally {
+            if (oisFromFis != null) {
+                try {
+                    oisFromFis.close();
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+            if (oisFromFis == null && fis != null) {
+                try {
+                    fis.close();
+                } catch (IOException e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java
new file mode 100644
index 0000000..c7efca5
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.util.List;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.api.io.IODeviceHandle;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepositoryFactory;
+
+public class PersistentLocalResourceRepositoryFactory implements ILocalResourceRepositoryFactory {
+    private IIOManager ioManager;
+
+    public PersistentLocalResourceRepositoryFactory(IIOManager ioManager) {
+        this.ioManager = ioManager;
+    }
+
+    @Override
+    public ILocalResourceRepository createRepository() throws HyracksDataException {
+        List<IODeviceHandle> devices = ioManager.getIODevices();
+        return new PersistentLocalResourceRepository(devices.get(0).getPath().getPath());
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java
new file mode 100644
index 0000000..d38226b
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.resource;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
+
+/**
+ * Represents a repository containing Resource Managers and Resources in the
+ * transaction eco-system. Operations on a resource require acquiring
+ * appropriate locks (for isolation) and writing logs (durability). Every
+ * resource is managed by an associated resource manager that contains the logic
+ * to interpret the logs and take necessary action(s) during roll back or
+ * recovery. An example of resource is a @see ITreeIndex that is managed by a
+ * resource manager @see TreeResourceManager
+ */
+public class TransactionalResourceManagerRepository {
+
+    private Map<Byte, IResourceManager> resourceMgrRepository = new HashMap<Byte, IResourceManager>(); // repository
+
+    public void registerTransactionalResourceManager(byte id, IResourceManager resourceMgr) {
+        synchronized (resourceMgrRepository) {
+            if (resourceMgrRepository.get(id) == null) {
+                resourceMgrRepository.put(id, resourceMgr);
+            }
+        }
+    }
+
+    public IResourceManager getTransactionalResourceMgr(byte id) {
+        synchronized (resourceMgrRepository) {
+            return resourceMgrRepository.get(id);
+        }
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceRepository.java
deleted file mode 100644
index 586f6d6..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceRepository.java
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.asterix.transaction.management.resource;
-
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.Map;
-
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-
-/**
- * Represents a repository containing Resource Managers and Resources in the
- * transaction eco-system. Operations on a resource require acquiring
- * appropriate locks (for isolation) and writing logs (durability). Every
- * resource is managed by an associated resource manager that contains the logic
- * to interpret the logs and take necessary action(s) during roll back or
- * recovery. An example of resource is a @see ITreeIndex that is managed by a
- * resource manager @see TreeResourceManager
- */
-public class TransactionalResourceRepository {
-
-    private static Map<ByteBuffer, Object> resourceRepository = new HashMap<ByteBuffer, Object>(); // repository
-    // containing
-    // resources
-    // that
-    // participate
-    // in
-    // transactions
-
-    private static Map<Byte, IResourceManager> resourceMgrRepository = new HashMap<Byte, IResourceManager>(); // repository
-
-    // containing
-    // resource
-    // managers
-
-    public static void registerTransactionalResource(byte[] resourceBytes, Object resource) {
-        ByteBuffer resourceId = ByteBuffer.wrap(resourceBytes); // need to
-        // convert to
-        // ByteBuffer so
-        // that a byte[]
-        // can be used
-        // as a key in a
-        // hash map.
-        synchronized (resourceRepository) {
-            if (resourceRepository.get(resourceId) == null) {
-                resourceRepository.put(resourceId, resource);
-                resourceRepository.notifyAll(); // notify all reader threads
-                // that are waiting to retrieve
-                // a resource from the
-                // repository
-
-            }
-        }
-    }
-
-    public static void registerTransactionalResourceManager(byte id, IResourceManager resourceMgr) {
-        synchronized (resourceMgrRepository) {
-            if (resourceMgrRepository.get(id) == null) {
-                resourceMgrRepository.put(id, resourceMgr);
-                resourceMgrRepository.notifyAll(); // notify all reader threads
-                // that are waiting to
-                // retrieve a resource
-                // manager from the
-                // repository
-            }
-        }
-    }
-
-    public static Object getTransactionalResource(byte[] resourceIdBytes) {
-        ByteBuffer buffer = ByteBuffer.wrap(resourceIdBytes);
-        synchronized (resourceRepository) {
-            while (resourceRepository.get(buffer) == null) {
-                try {
-                    resourceRepository.wait();
-                } catch (InterruptedException ie) {
-                    ie.printStackTrace();
-                    break; // the thread might be interrupted due to other
-                    // failures occurring elsewhere, break from the loop
-                }
-            }
-            return resourceRepository.get(buffer);
-        }
-    }
-
-    public static IResourceManager getTransactionalResourceMgr(byte id) {
-        synchronized (resourceMgrRepository) {
-            while (resourceMgrRepository.get(id) == null) {
-                try {
-                    resourceMgrRepository.wait();
-                } catch (InterruptedException ie) {
-                    ie.printStackTrace();
-                    break; // the thread might be interrupted due to other
-                    // failures occurring elsewhere, break from the loop
-                }
-            }
-            return resourceMgrRepository.get(id);
-        }
-
-    }
-
-}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java
new file mode 100644
index 0000000..d5e525a
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java
@@ -0,0 +1,504 @@
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+
+public class DatasetLockInfo {
+    private EntityLockInfoManager entityLockInfoManager;
+    private EntityInfoManager entityInfoManager;
+    private LockWaiterManager lockWaiterManager;
+    private PrimitiveIntHashMap entityResourceHT;
+    private int IXCount;
+    private int ISCount;
+    private int XCount;
+    private int SCount;
+    private int lastHolder;
+    private int firstWaiter;
+    private int firstUpgrader;
+
+    public DatasetLockInfo(EntityLockInfoManager entityLockInfoManager, EntityInfoManager entityInfoManager,
+            LockWaiterManager lockWaiterManager) {
+        this.entityLockInfoManager = entityLockInfoManager;
+        this.entityInfoManager = entityInfoManager;
+        this.lockWaiterManager = lockWaiterManager;
+        entityResourceHT = new PrimitiveIntHashMap();
+        lastHolder = -1; //-1 stands for end of list
+        firstWaiter = -1;
+        firstUpgrader = -1;
+    }
+
+    public void increaseLockCount(byte lockMode) {
+        switch (lockMode) {
+            case LockMode.IX:
+                IXCount++;
+                break;
+            case LockMode.IS:
+                ISCount++;
+                break;
+            case LockMode.X:
+                XCount++;
+                break;
+            case LockMode.S:
+                SCount++;
+                break;
+            default:
+                throw new IllegalStateException("Invalid dataset lock mode");
+        }
+    }
+
+    public void decreaseLockCount(byte lockMode) {
+        switch (lockMode) {
+            case LockMode.IX:
+                IXCount--;
+                break;
+            case LockMode.IS:
+                ISCount--;
+                break;
+            case LockMode.X:
+                XCount--;
+                break;
+            case LockMode.S:
+                SCount--;
+                break;
+            default:
+                throw new IllegalStateException("Invalid dataset lock mode");
+        }
+    }
+
+    public void increaseLockCount(byte lockMode, int count) {
+        switch (lockMode) {
+            case LockMode.IX:
+                IXCount += count;
+                break;
+            case LockMode.IS:
+                ISCount += count;
+                break;
+            case LockMode.X:
+                XCount += count;
+                break;
+            case LockMode.S:
+                SCount += count;
+                break;
+            default:
+                throw new IllegalStateException("Invalid dataset lock mode");
+        }
+    }
+
+    public void decreaseLockCount(byte lockMode, int count) {
+        switch (lockMode) {
+            case LockMode.IX:
+                IXCount -= count;
+                break;
+            case LockMode.IS:
+                ISCount -= count;
+                break;
+            case LockMode.X:
+                XCount -= count;
+                break;
+            case LockMode.S:
+                SCount -= count;
+                break;
+            default:
+                throw new IllegalStateException("Invalid dataset lock mode");
+        }
+    }
+
+    public boolean isUpgradeCompatible(byte lockMode, int entityInfo) {
+        switch (lockMode) {
+        //upgrade from IS -> IX
+        //XCount is guaranteed to be 0.
+        //upgrade is allowed if SCount is 0.
+            case LockMode.IX:
+                return SCount == 0;
+
+                //upgrade from S -> X
+                //XCount and IXCount are guaranteed to be 0.
+                //upgrade is allowed if ISCount is 0.
+            case LockMode.X:
+                return ISCount == 0;
+
+            default:
+                throw new IllegalStateException("Invalid upgrade lock mode");
+        }
+    }
+
+    public boolean isCompatible(byte lockMode) {
+        switch (lockMode) {
+            case LockMode.IX:
+                return SCount == 0 && XCount == 0;
+
+            case LockMode.IS:
+                return XCount == 0;
+
+            case LockMode.X:
+                return ISCount == 0 && IXCount == 0 && SCount == 0 && XCount == 0;
+
+            case LockMode.S:
+                return IXCount == 0 && XCount == 0;
+
+            default:
+                throw new IllegalStateException("Invalid upgrade lock mode");
+        }
+    }
+
+    public int findEntityInfoFromHolderList(int jobId, int hashVal) {
+        int entityInfo;
+        int eLockInfo;
+        int waiterObjId;
+        if (hashVal == -1) {//dataset-granule lock
+            entityInfo = lastHolder;
+            while (entityInfo != -1) {
+                if (jobId == entityInfoManager.getJobId(entityInfo)) {
+                    return entityInfo;
+                }
+                entityInfo = entityInfoManager.getPrevEntityActor(entityInfo);
+            }
+            return -1;
+        } else { //entity-granule lock
+            eLockInfo = entityResourceHT.get(hashVal);
+            if (eLockInfo == -1) {
+                return -1;
+            }
+            entityInfo = entityLockInfoManager.findEntityInfoFromHolderList(eLockInfo, jobId, hashVal);
+            if (entityInfo == -1) {
+                //find the entityInfo from the waiter list of entityLockInfo. 
+                //There is a case where dataset-granule lock is acquired, but entity-granule lock is not acquired yet.
+                //In this case, the waiter of the entityLockInfo represents the holder of the datasetLockInfo.
+                waiterObjId = entityLockInfoManager.findWaiterFromWaiterList(eLockInfo, jobId, hashVal);
+                if (waiterObjId != -1) {
+                    entityInfo = lockWaiterManager.getLockWaiter(waiterObjId).getEntityInfoSlot();
+                }
+            }
+            return entityInfo;
+        }
+    }
+
+    public int findWaiterFromWaiterList(int jobId, int hashVal) {
+        int waiterObjId;
+        LockWaiter waiterObj;
+        int entityInfo = 0;
+
+        waiterObjId = firstWaiter;
+        while (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (jobId == entityInfoManager.getJobId(entityInfo)
+                    && hashVal == entityInfoManager.getPKHashVal(entityInfo)) {
+                return waiterObjId;
+            }
+            waiterObjId = waiterObj.getNextWaiterObjId();
+        }
+
+        return -1;
+    }
+
+    public int findUpgraderFromUpgraderList(int jobId, int hashVal) {
+        int waiterObjId;
+        LockWaiter waiterObj;
+        int entityInfo = 0;
+
+        waiterObjId = firstUpgrader;
+        while (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (jobId == entityInfoManager.getJobId(entityInfo)
+                    && hashVal == entityInfoManager.getPKHashVal(entityInfo)) {
+                return waiterObjId;
+            }
+            waiterObjId = waiterObj.getNextWaiterObjId();
+        }
+
+        return -1;
+    }
+
+    public boolean isNoHolder() {
+        return ISCount == 0 && IXCount == 0 && SCount == 0 && XCount == 0;
+    }
+
+    public void addHolder(int holder) {
+        entityInfoManager.setPrevEntityActor(holder, lastHolder);
+        lastHolder = holder;
+    }
+
+    /**
+     * Remove holder from linked list of Actor.
+     * Also, remove the corresponding resource from linked list of resource
+     * in order to minimize JobInfo's resource link traversal.
+     * 
+     * @param holder
+     * @param jobInfo
+     */
+    public void removeHolder(int holder, JobInfo jobInfo) {
+        int prev = lastHolder;
+        int current = -1;
+        int next;
+
+        //remove holder from linked list of Actor
+        while (prev != holder) {
+            if (LockManager.IS_DEBUG_MODE) {
+                if (prev == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            current = prev;
+            prev = entityInfoManager.getPrevEntityActor(current);
+        }
+
+        if (current != -1) {
+            //current->prev = prev->prev
+            entityInfoManager.setPrevEntityActor(current, entityInfoManager.getPrevEntityActor(prev));
+        } else {
+            //lastHolder = prev->prev
+            lastHolder = entityInfoManager.getPrevEntityActor(prev);
+        }
+
+        //Notice!!
+        //remove the corresponding resource from linked list of resource.
+        //it is guaranteed that there is no waiter or upgrader in the JobInfo when this function is called.
+        prev = entityInfoManager.getPrevJobResource(holder);
+        next = entityInfoManager.getNextJobResource(holder);
+
+        if (prev != -1) {
+            entityInfoManager.setNextJobResource(prev, next);
+        }
+
+        if (next != -1) {
+            entityInfoManager.setPrevJobResource(next, prev);
+        } else {
+            //This entityInfo(i.e., holder) is the last resource held by this job.
+            jobInfo.setlastHoldingResource(holder);
+        }
+        
+        //jobInfo.decreaseDatasetLockCount(holder);
+    }
+
+    /**
+     * append new waiter to the end of waiters
+     * 
+     * @param waiterObjId
+     */
+    public void addWaiter(int waiterObjId) {
+        int lastObjId;
+        LockWaiter lastObj = null;
+
+        if (firstWaiter != -1) {
+            //find the lastWaiter
+            lastObjId = firstWaiter;
+            while (lastObjId != -1) {
+                lastObj = lockWaiterManager.getLockWaiter(lastObjId);
+                lastObjId = lastObj.getNextWaiterObjId();
+            }
+            //last->next = new_waiter
+            lastObj.setNextWaiterObjId(waiterObjId);
+        } else {
+            firstWaiter = waiterObjId;
+        }
+        //new_waiter->next = -1
+        lastObj = lockWaiterManager.getLockWaiter(waiterObjId);
+        lastObj.setNextWaiterObjId(-1);
+
+//        if (LockManager.IS_DEBUG_MODE) {
+//            System.out.println(printWaiters());
+//        }
+    }
+
+    public void removeWaiter(int waiterObjId) {
+        int currentObjId = firstWaiter;
+        LockWaiter currentObj;
+        LockWaiter prevObj = null;
+        int prevObjId = -1;
+        int nextObjId;
+
+        while (currentObjId != waiterObjId) {
+
+            if (LockManager.IS_DEBUG_MODE) {
+                if (currentObjId == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            prevObj = lockWaiterManager.getLockWaiter(currentObjId);
+            prevObjId = currentObjId;
+            currentObjId = prevObj.getNextWaiterObjId();
+        }
+
+        //get current waiter object
+        currentObj = lockWaiterManager.getLockWaiter(currentObjId);
+
+        //get next waiterObjId
+        nextObjId = currentObj.getNextWaiterObjId();
+
+        if (prevObjId != -1) {
+            //prev->next = next
+            prevObj.setNextWaiterObjId(nextObjId);
+        } else {
+            //removed first waiter. firstWaiter = current->next
+            firstWaiter = nextObjId;
+        }
+
+//        if (LockManager.IS_DEBUG_MODE) {
+//            System.out.println(printWaiters());
+//        }
+    }
+
+    public void addUpgrader(int waiterObjId) {
+        int lastObjId;
+        LockWaiter lastObj = null;
+
+        if (firstUpgrader != -1) {
+            //find the lastWaiter
+            lastObjId = firstUpgrader;
+            while (lastObjId != -1) {
+                lastObj = lockWaiterManager.getLockWaiter(lastObjId);
+                lastObjId = lastObj.getNextWaiterObjId();
+            }
+            //last->next = new_waiter
+            lastObj.setNextWaiterObjId(waiterObjId);
+        } else {
+            firstUpgrader = waiterObjId;
+        }
+        //new_waiter->next = -1
+        lastObj = lockWaiterManager.getLockWaiter(waiterObjId);
+        lastObj.setNextWaiterObjId(-1);
+    }
+
+    public void removeUpgrader(int waiterObjId) {
+        int currentObjId = firstUpgrader;
+        LockWaiter currentObj;
+        LockWaiter prevObj = null;
+        int prevObjId = -1;
+        int nextObjId;
+
+        while (currentObjId != waiterObjId) {
+
+            if (LockManager.IS_DEBUG_MODE) {
+                if (currentObjId == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            prevObj = lockWaiterManager.getLockWaiter(currentObjId);
+            prevObjId = currentObjId;
+            currentObjId = prevObj.getNextWaiterObjId();
+        }
+
+        //get current waiter object
+        currentObj = lockWaiterManager.getLockWaiter(currentObjId);
+
+        //get next waiterObjId
+        nextObjId = currentObj.getNextWaiterObjId();
+
+        if (prevObjId != -1) {
+            //prev->next = next
+            prevObj.setNextWaiterObjId(nextObjId);
+        } else {
+            //removed first waiter. firstWaiter = current->next
+            firstUpgrader = nextObjId;
+        }
+    }
+
+    //debugging method
+    public String printWaiters() {
+        StringBuilder s = new StringBuilder();
+        int waiterObjId;
+        LockWaiter waiterObj;
+        int entityInfo;
+
+        s.append("WID\tWCT\tEID\tJID\tDID\tPK\n");
+
+        waiterObjId = firstWaiter;
+        while (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            s.append(waiterObjId).append("\t").append(waiterObj.getWaiterCount()).append("\t").append(entityInfo)
+                    .append("\t").append(entityInfoManager.getJobId(entityInfo)).append("\t")
+                    .append(entityInfoManager.getDatasetId(entityInfo)).append("\t")
+                    .append(entityInfoManager.getPKHashVal(entityInfo)).append("\n");
+            waiterObjId = waiterObj.getNextWaiterObjId();
+        }
+
+        return s.toString();
+    }
+
+    /////////////////////////////////////////////////////////
+    //  set/get method for private variable
+    /////////////////////////////////////////////////////////
+    public void setIXCount(int count) {
+        IXCount = count;
+    }
+
+    public int getIXCount() {
+        return IXCount;
+    }
+
+    public void setISCount(int count) {
+        ISCount = count;
+    }
+
+    public int getISCount() {
+        return ISCount;
+    }
+
+    public void setXCount(int count) {
+        XCount = count;
+    }
+
+    public int getXCount() {
+        return XCount;
+    }
+
+    public void setSCount(int count) {
+        SCount = count;
+    }
+
+    public int getSCount() {
+        return SCount;
+    }
+
+    public void setLastHolder(int holder) {
+        lastHolder = holder;
+    }
+
+    public int getLastHolder() {
+        return lastHolder;
+    }
+
+    public void setFirstWaiter(int waiter) {
+        firstWaiter = waiter;
+    }
+
+    public int getFirstWaiter() {
+        return firstWaiter;
+    }
+
+    public void setFirstUpgrader(int upgrader) {
+        firstUpgrader = upgrader;
+    }
+
+    public int getFirstUpgrader() {
+        return firstUpgrader;
+    }
+
+    public PrimitiveIntHashMap getEntityResourceHT() {
+        return entityResourceHT;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
index 695abde..900725b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
@@ -1,67 +1,237 @@
 package edu.uci.ics.asterix.transaction.management.service.locking;
 
-import java.util.ArrayList;
-import java.util.Iterator;
+import java.util.HashMap;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
- * @author pouria Performing a DFS search, upon adding each waiter to a waiting
+ * @author pouria, kisskys Performing a BFS search, upon adding each waiter to a waiting
  *         list to avoid deadlocks this class implements such a loop-detector in
  *         the wait-for-graph
  */
 
 public class DeadlockDetector {
-    LockManager lockMgr;
 
-    ArrayList<Long> grantedList;
-    ArrayList<Long> nextTxrIDs;
-    ArrayList<Long> visited;
-    ArrayList<Long> nextGrantedTxIDs;
+    public static final boolean IS_DEBUG_MODE = true;//false
+    private HashMap<JobId, JobInfo> jobHT;
+    private HashMap<DatasetId, DatasetLockInfo> datasetResourceHT;
+    private EntityLockInfoManager entityLockInfoManager;
+    private EntityInfoManager entityInfoManager;
+    private LockWaiterManager lockWaiterManager;
 
-    public DeadlockDetector(LockManager lm) {
-        this.lockMgr = lm;
-        this.grantedList = new ArrayList<Long>();
-        this.nextTxrIDs = new ArrayList<Long>();
-        this.visited = new ArrayList<Long>();
-        this.nextGrantedTxIDs = new ArrayList<Long>();
+    private PrimitiveIntHashMap holderList;
+    private PrimitiveIntHashMap nextHolderList;
+    private PrimitiveIntHashMap resourceList;
+    private PrimitiveIntHashMap visitedHolderList;
+    private JobId tempJobIdObj; //temporary object to avoid object creation
+    private DatasetId tempDatasetIdObj; //temporary object to avoid object creation
+
+    public DeadlockDetector(HashMap<JobId, JobInfo> jobHT, HashMap<DatasetId, DatasetLockInfo> datasetResourceHT,
+            EntityLockInfoManager entityLockInfoManager, EntityInfoManager entityInfoManager,
+            LockWaiterManager lockWaiterManager) {
+        this.jobHT = jobHT;
+        this.datasetResourceHT = datasetResourceHT;
+        this.entityLockInfoManager = entityLockInfoManager;
+        this.entityInfoManager = entityInfoManager;
+        this.lockWaiterManager = lockWaiterManager;
+        holderList = new PrimitiveIntHashMap(1 << 6, 1 << 3, 180000);
+        nextHolderList = new PrimitiveIntHashMap(1 << 6, 1 << 3, 180000);
+        resourceList = new PrimitiveIntHashMap(1, 1 << 4, 180000);
+        visitedHolderList = new PrimitiveIntHashMap(1 << 6, 1 << 3, 180000);
+        tempJobIdObj = new JobId(0);
+        tempDatasetIdObj = new DatasetId(0);
     }
 
-    public synchronized boolean isSafeToAdd(long reqTxId, byte[] resourceId) {
-        grantedList.clear();
-        lockMgr.getLockInfo(resourceId).getGrantedListTxIDs(grantedList);
-        visited.clear();
-        while (grantedList.size() > 0) { // Doing a DFS for loop detection
-            nextTxrIDs.clear();
-            for (long grantee : grantedList) {
-                TxrInfo nextTInfoList = lockMgr.getTxrInfo(grantee);
-                if (nextTInfoList == null) {
-                    continue;
-                }
-                byte[] nextWaitOnRid = nextTInfoList.getWaitOnRid();
-                if (nextWaitOnRid == null) {
-                    continue;
-                }
-                nextGrantedTxIDs.clear();
-                lockMgr.getLockInfo(nextWaitOnRid).getGrantedListTxIDs(nextGrantedTxIDs);
-                if (nextGrantedTxIDs.contains(reqTxId)) {
-                    return false;
-                }
-                removeVisitedTxIDs();
-                nextTxrIDs.addAll(nextGrantedTxIDs);
-                visited.add(grantee);
-            }
-            grantedList.clear();
-            grantedList.addAll(nextTxrIDs);
+    public boolean isSafeToAdd(DatasetLockInfo dLockInfo, int eLockInfo, int entityInfo, boolean isDatasetLockInfo,
+            boolean isUpgrade) {
+        int holder;
+        int visitedHolder;
+        int callerId = entityInfoManager.getJobId(entityInfo);
+        int datasetId = entityInfoManager.getDatasetId(entityInfo);
+        int hashValue = entityInfoManager.getPKHashVal(entityInfo);
+        int resource;
+        PrimitiveIntHashMap tempHolderList;
+
+        holderList.clear(true);
+        visitedHolderList.clear(true);
+
+        //holderlist contains jobId
+        //resourceList contains entityInfo's slot numbers instead of resourceId in order to avoid object creation 
+        //since resourceId consists of datasetId and PKHashValue
+
+        //get holder list(jobId list)
+        if (isDatasetLockInfo) {
+            getHolderList(datasetId, -1, holderList);
+        } else {
+            getHolderList(datasetId, hashValue, holderList);
         }
+
+        //check whether this caller is upgrader or not
+        //if it is upgrader, then handle it as special case in the following manner
+        //if there is another upgrader or waiter of which lock mode is not compatible with the caller's lock mode,
+        //then this caller's wait causes deadlock.
+        if (holderList.get(callerId) != -1) {
+            if (isUpgrade && dLockInfo.getFirstUpgrader() != -1) {
+                return false;
+            }
+            //there is no case such that while a job is holding any mode of lock on a dataset and waits for the same dataset as an waiter. 
+            //But the job may wait for the same dataset as an upgrader.
+        }
+
+        //TODO
+        //check whether when there are multiple resources, the waiter and upgrader should be distinguished or not.
+        //The current logic doesn't distinguish these two types of waiter.
+
+        //while holderList is not empty
+        holderList.beginIterate();
+        holder = holderList.getNextKey();
+        while (holder != -1) {
+
+            nextHolderList.clear(true);
+
+            while (holder != -1) {
+                resourceList.clear(true);
+                getWaitingResourceList(holder, resourceList);
+                resourceList.beginIterate();
+                resource = resourceList.getNextKey();
+
+                while (resource != -1) {
+                    //get dataset holder
+                    getHolderList(entityInfoManager.getDatasetId(resource), -1, nextHolderList);
+                    //get entity holder
+                    getHolderList(entityInfoManager.getDatasetId(resource), entityInfoManager.getPKHashVal(resource),
+                            nextHolderList);
+                    if (nextHolderList.get(callerId) != -1) {
+                        return false;
+                    }
+                    resource = resourceList.getNextKey();
+                }
+
+                visitedHolderList.put(holder, -1);
+                holder = holderList.getNextKey();
+            }
+
+            //remove visitedHolder for nextHolderList;
+            visitedHolderList.beginIterate();
+            visitedHolder = visitedHolderList.getNextKey();
+            while (visitedHolder != -1) {
+                nextHolderList.remove(visitedHolder);
+                visitedHolder = visitedHolderList.getNextKey();
+            }
+
+            //swap holder list
+            //set holderList to nextHolderList and nextHolderList to holderList
+            tempHolderList = holderList;
+            holderList = nextHolderList;
+            nextHolderList = tempHolderList;
+            holderList.beginIterate();
+            holder = holderList.getNextKey();
+        }
+
         return true;
     }
 
-    private void removeVisitedTxIDs() {
-        Iterator<Long> txIdIt = nextGrantedTxIDs.iterator();
-        while (txIdIt.hasNext()) {
-            if (visited.contains(txIdIt.next())) {
-                txIdIt.remove();
+    /**
+     * Get holder list of dataset if hashValue == -1. Get holder list of entity otherwise.
+     * Where, a holder is a jobId, not entityInfo's slotNum
+     * 
+     * @param datasetId
+     * @param hashValue
+     * @param holderList
+     */
+    private void getHolderList(int datasetId, int hashValue, PrimitiveIntHashMap holderList) {
+        PrimitiveIntHashMap entityHT;
+        DatasetLockInfo dLockInfo;
+        int entityLockInfo;
+        int entityInfo;
+        int waiterObjId;
+        LockWaiter waiterObj;
+
+        //get datasetLockInfo
+        tempDatasetIdObj.setId(datasetId);
+        dLockInfo = datasetResourceHT.get(tempDatasetIdObj);
+        if (dLockInfo == null) {
+            return;
+        }
+
+        if (hashValue == -1) {
+            //get S/X-lock holders of dataset
+            entityInfo = dLockInfo.getLastHolder();
+            while (entityInfo != -1) {
+                holderList.put(entityInfoManager.getJobId(entityInfo), 0);
+                entityInfo = entityInfoManager.getPrevEntityActor(entityInfo);
+            }
+
+            //get IS/IX-lock holders of dataset
+            entityHT = dLockInfo.getEntityResourceHT();
+            entityHT.beginIterate();
+            entityLockInfo = entityHT.getNextValue();
+            while (entityLockInfo != -1) {
+
+                //1. add holder of eLockInfo to holerList
+                entityInfo = entityLockInfoManager.getLastHolder(entityLockInfo);
+                while (entityInfo != -1) {
+                    holderList.put(entityInfoManager.getJobId(entityInfo), 0);
+                    entityInfo = entityInfoManager.getPrevEntityActor(entityInfo);
+                }
+
+                //2. add waiter of eLockInfo to holderList since waiter of entityLock is a holder of datasetLock
+                //(Upgraders need not to be added since upgraders are also holders)
+                waiterObjId = entityLockInfoManager.getFirstWaiter(entityLockInfo);
+                while (waiterObjId != -1) {
+                    waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+                    entityInfo = waiterObj.getEntityInfoSlot();
+                    holderList.put(entityInfoManager.getJobId(entityInfo), 0);
+                    waiterObjId = waiterObj.getNextWaiterObjId();
+                }
+
+                entityLockInfo = entityHT.getNextValue();
+            }
+        } else {
+            //get S/X-lock holders of entity
+            entityHT = dLockInfo.getEntityResourceHT();
+            entityLockInfo = entityHT.get(hashValue);
+            if (entityLockInfo != -1) {
+                entityInfo = entityLockInfoManager.getLastHolder(entityLockInfo);
+                while (entityInfo != -1) {
+                    holderList.put(entityInfoManager.getJobId(entityInfo), 0);
+                    entityInfo = entityInfoManager.getPrevEntityActor(entityInfo);
+                }
             }
         }
+        return;
     }
 
+    /**
+     * Get waiting resource list of jobId, where a resource is represented with entityInfo's slot number
+     * 
+     * @param jobId
+     * @param resourceList
+     */
+    private void getWaitingResourceList(int jobId, PrimitiveIntHashMap resourceList) {
+        JobInfo jobInfo;
+        int waiterId;
+        LockWaiter waiterObj;
+        int entityInfo;
+
+        //get JobInfo
+        tempJobIdObj.setId(jobId);
+        jobInfo = jobHT.get(tempJobIdObj);
+        if (IS_DEBUG_MODE) {
+            if (jobInfo == null) {
+                System.out.println(Thread.currentThread().getName() + "jobId:" + jobId);
+            }
+        }
+
+        //get WaiterObj
+        waiterId = jobInfo.getFirstWaitingResource();
+        while (waiterId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            resourceList.put(entityInfo, -1);
+            waiterId = waiterObj.getNextWaitingResourceObjId();
+        }
+        return;
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java
new file mode 100644
index 0000000..b8820c4
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java
@@ -0,0 +1,704 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+
+/**
+ * EntityInfoManager provides EntityInfo arrays backed by ByteBuffer.
+ * The array grows when the slots are overflowed.
+ * Also, the array shrinks according to the following shrink policy
+ * : Shrink when the resource under-utilization lasts for a certain threshold time.
+ * 
+ * @author kisskys
+ */
+public class EntityInfoManager {
+
+    public static final int SHRINK_TIMER_THRESHOLD = 120000; //2min
+
+    private ArrayList<ChildEntityInfoArrayManager> pArray;
+    private int allocChild; //used to allocate the next free EntityInfo slot.
+    private long shrinkTimer;
+    private boolean isShrinkTimerOn;
+    private int occupiedSlots;
+
+    //    ////////////////////////////////////////////////
+    //    // begin of unit test
+    //    ////////////////////////////////////////////////
+    //
+    //    public static final int SHRINK_TIMER_THRESHOLD = 0; //for unit test
+    //
+    //    /**
+    //     * @param args
+    //     */
+    //    public static void main(String[] args) {
+    //        final int DataSize = 5000;
+    //
+    //        int i, j;
+    //        int slots = ChildEntityInfoArrayManager.NUM_OF_SLOTS;
+    //        int data[] = new int[DataSize];
+    //        EntityInfoManager eiMgr = new EntityInfoManager();
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = eiMgr.allocate();
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the last child to the first child
+    //        System.out.println("deallocate from the last child to the first child");
+    //        for (i = 4; i >= 0; i--) {
+    //            for (j = i * slots + slots - 1; j >= i * slots; j--) {
+    //                eiMgr.deallocate(data[j]);
+    //            }
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = eiMgr.allocate();
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the first child to last child
+    //        System.out.println("deallocate from the first child to last child");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                eiMgr.deallocate(data[j]);
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = eiMgr.allocate();
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the first child to 4th child
+    //        System.out.println("deallocate from the first child to 4th child");
+    //        for (i = 0; i < 4; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                eiMgr.deallocate(data[j]);
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 40
+    //        System.out.println("allocate: 40");
+    //        for (i = 0; i < 4; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = eiMgr.allocate();
+    //            }
+    //
+    //            System.out.println(eiMgr.prettyPrint());
+    //        }
+    //    }
+    //    
+    //    ////////////////////////////////////////////////
+    //    // end of unit test
+    //    ////////////////////////////////////////////////
+
+    public EntityInfoManager() {
+        pArray = new ArrayList<ChildEntityInfoArrayManager>();
+        pArray.add(new ChildEntityInfoArrayManager());
+        allocChild = 0;
+        occupiedSlots = 0;
+        isShrinkTimerOn = false;
+    }
+
+    public int allocate(int jobId, int datasetId, int entityHashVal, byte lockMode) {
+        int slotNum = allocate();
+        initEntityInfo(slotNum, jobId, datasetId, entityHashVal, lockMode);
+        return slotNum;
+    }
+
+    public int allocate() {
+        if (pArray.get(allocChild).isFull()) {
+            int size = pArray.size();
+            boolean bAlloc = false;
+            ChildEntityInfoArrayManager child;
+
+            //find a deinitialized child and initialze it
+            for (int i = 0; i < size; i++) {
+                child = pArray.get(i);
+                if (child.isDeinitialized()) {
+                    child.initialize();
+                    allocChild = i;
+                    bAlloc = true;
+                    break;
+                }
+            }
+
+            //allocate new child when there is no deinitialized child
+            if (!bAlloc) {
+                pArray.add(new ChildEntityInfoArrayManager());
+                allocChild = pArray.size() - 1;
+            }
+        }
+        occupiedSlots++;
+        return pArray.get(allocChild).allocate() + allocChild * ChildEntityInfoArrayManager.NUM_OF_SLOTS;
+    }
+
+    void deallocate(int slotNum) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).deallocate(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+        occupiedSlots--;
+
+        if (needShrink()) {
+            shrink();
+        }
+    }
+
+    /**
+     * Shrink policy:
+     * Shrink when the resource under-utilization lasts for a certain amount of time.
+     * TODO Need to figure out which of the policies is better
+     * case1.
+     * pArray status : O x x x x x O (O is initialized, x is deinitialized)
+     * In the above status, 'CURRENT' needShrink() returns 'TRUE'
+     * even if there is nothing to shrink or deallocate.
+     * It doesn't distinguish the deinitialized children from initialized children
+     * by calculating totalNumOfSlots = pArray.size() * ChildEntityInfoArrayManager.NUM_OF_SLOTS.
+     * In other words, it doesn't subtract the deinitialized children's slots.
+     * case2.
+     * pArray status : O O x x x x x
+     * However, in the above case, if we subtract the deinitialized children's slots,
+     * needShrink() will return false even if we shrink the pArray at this case.
+     * 
+     * @return
+     */
+    private boolean needShrink() {
+        int size = pArray.size();
+        int usedSlots = occupiedSlots;
+        if (usedSlots == 0) {
+            usedSlots = 1;
+        }
+
+        if (size > 1 && size * ChildEntityInfoArrayManager.NUM_OF_SLOTS / usedSlots >= 3) {
+            if (isShrinkTimerOn) {
+                if (System.currentTimeMillis() - shrinkTimer >= SHRINK_TIMER_THRESHOLD) {
+                    isShrinkTimerOn = false;
+                    return true;
+                }
+            } else {
+                //turn on timer
+                isShrinkTimerOn = true;
+                shrinkTimer = System.currentTimeMillis();
+            }
+        } else {
+            //turn off timer
+            isShrinkTimerOn = false;
+        }
+
+        return false;
+    }
+
+    /**
+     * Shrink() may
+     * deinitialize(:deallocates ByteBuffer of child) Children(s) or
+     * shrink pArray according to the deinitialized children's contiguity status.
+     * It doesn't deinitialze or shrink more than half of children at a time.
+     */
+    private void shrink() {
+        int i;
+        boolean bContiguous = true;
+        int decreaseCount = 0;
+        int size = pArray.size();
+        int maxDecreaseCount = size / 2;
+        ChildEntityInfoArrayManager child;
+        for (i = size - 1; i >= 0; i--) {
+            child = pArray.get(i);
+            if (child.isEmpty() || child.isDeinitialized()) {
+                if (bContiguous) {
+                    pArray.remove(i);
+                    if (++decreaseCount == maxDecreaseCount) {
+                        break;
+                    }
+                } else {
+                    bContiguous = false;
+                    if (child.isEmpty()) {
+                        child.deinitialize();
+                        if (++decreaseCount == maxDecreaseCount) {
+                            break;
+                        }
+                    }
+                }
+            } else {
+                bContiguous = false;
+            }
+        }
+
+        //reset allocChild when the child is removed or deinitialized.
+        size = pArray.size();
+        if (allocChild >= size || pArray.get(allocChild).isDeinitialized()) {
+            //set allocChild to any initialized one.
+            //It is guaranteed that there is at least one initialized child.
+            for (i = 0; i < size; i++) {
+                if (!pArray.get(i).isDeinitialized()) {
+                    allocChild = i;
+                    break;
+                }
+            }
+        }
+    }
+
+    public String prettyPrint() {
+        StringBuilder s = new StringBuilder("\n########### EntityInfoManager Status #############\n");
+        int size = pArray.size();
+        ChildEntityInfoArrayManager child;
+
+        for (int i = 0; i < size; i++) {
+            child = pArray.get(i);
+            if (child.isDeinitialized()) {
+                continue;
+            }
+            s.append("child[" + i + "]: occupiedSlots:" + child.getNumOfOccupiedSlots());
+            s.append(" freeSlotNum:" + child.getFreeSlotNum() + "\n");
+            s.append("\tjid\t").append("did\t").append("PK\t").append("DLM\t").append("DLC\t").append("ELM\t")
+                    .append("ELC\t").append("NEA\t").append("PJR\t").append("NJR\n");
+            for (int j = 0; j < ChildEntityInfoArrayManager.NUM_OF_SLOTS; j++) {
+                s.append(j).append(": ");
+                s.append("\t" + child.getJobId(j));
+                s.append("\t" + child.getDatasetId(j));
+                s.append("\t" + child.getPKHashVal(j));
+                s.append("\t" + child.getDatasetLockMode(j));
+                s.append("\t" + child.getDatasetLockCount(j));
+                s.append("\t" + child.getEntityLockMode(j));
+                s.append("\t" + child.getEntityLockCount(j));
+                s.append("\t" + child.getNextEntityActor(j));
+                s.append("\t" + child.getPrevJobResource(j));
+                s.append("\t" + child.getNextJobResource(j));
+                //s.append("\t" + child.getNextDatasetActor(j));
+                s.append("\n");
+            }
+            s.append("\n");
+        }
+        return s.toString();
+    }
+
+    public void initEntityInfo(int slotNum, int jobId, int datasetId, int PKHashVal, byte lockMode) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).initEntityInfo(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, jobId, datasetId, PKHashVal, lockMode);
+    }
+
+    public boolean compareEntityInfo(int slotNum, int jobId, int datasetId, int PKHashVal) {
+        return getPKHashVal(slotNum) == PKHashVal && getDatasetId(slotNum) == datasetId && getJobId(slotNum) == jobId;
+    }
+
+    public void increaseDatasetLockCount(int slotNum) {
+        setDatasetLockCount(slotNum, (byte) (getDatasetLockCount(slotNum) + 1));
+    }
+
+    public void decreaseDatasetLockCount(int slotNum) {
+        setDatasetLockCount(slotNum, (byte) (getDatasetLockCount(slotNum) - 1));
+    }
+
+    public void increaseEntityLockCount(int slotNum) {
+        setEntityLockCount(slotNum, (byte) (getEntityLockCount(slotNum) + 1));
+    }
+
+    public void decreaseEntityLockCount(int slotNum) {
+        setEntityLockCount(slotNum, (byte) (getEntityLockCount(slotNum) - 1));
+    }
+
+    public void increaseDatasetLockCount(int slotNum, int count) {
+        setDatasetLockCount(slotNum, (byte) (getDatasetLockCount(slotNum) + count));
+    }
+
+    public void decreaseDatasetLockCount(int slotNum, int count) {
+        setDatasetLockCount(slotNum, (byte) (getDatasetLockCount(slotNum) - count));
+    }
+
+    public void increaseEntityLockCount(int slotNum, int count) {
+        setEntityLockCount(slotNum, (byte) (getEntityLockCount(slotNum) + count));
+    }
+
+    public void decreaseEntityLockCount(int slotNum, int count) {
+        setEntityLockCount(slotNum, (byte) (getEntityLockCount(slotNum) - count));
+    }
+
+    //////////////////////////////////////////////////////////////////
+    //   set/get method for each field of EntityInfo
+    //////////////////////////////////////////////////////////////////
+
+    public void setJobId(int slotNum, int id) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setJobId(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, id);
+    }
+
+    public int getJobId(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getJobId(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setDatasetId(int slotNum, int id) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setDatasetId(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, id);
+    }
+
+    public int getDatasetId(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getDatasetId(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setPKHashVal(int slotNum, int hashVal) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setPKHashVal(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, hashVal);
+    }
+
+    public int getPKHashVal(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getPKHashVal(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setDatasetLockMode(int slotNum, byte mode) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setDatasetLockMode(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, mode);
+    }
+
+    public byte getDatasetLockMode(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getDatasetLockMode(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setDatasetLockCount(int slotNum, byte count) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setDatasetLockCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, count);
+    }
+
+    public byte getDatasetLockCount(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getDatasetLockCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setEntityLockMode(int slotNum, byte mode) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setEntityLockMode(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, mode);
+    }
+
+    public byte getEntityLockMode(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getEntityLockMode(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setEntityLockCount(int slotNum, byte count) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setEntityLockCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, count);
+    }
+
+    public byte getEntityLockCount(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getEntityLockCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    //Used for Waiter/Upgrader
+    public void setNextEntityActor(int slotNum, int nextActorSlotNum) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setNextEntityActor(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, nextActorSlotNum);
+    }
+
+    //Used for Waiter/Upgrader
+    public int getNextEntityActor(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getNextEntityActor(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    //Used for Holder
+    public void setPrevEntityActor(int slotNum, int nextActorSlotNum) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setPrevEntityActor(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, nextActorSlotNum);
+    }
+
+    //Used for Holder
+    public int getPrevEntityActor(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getPrevEntityActor(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setPrevJobResource(int slotNum, int prevResourceSlotNum) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setPrevJobResource(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, prevResourceSlotNum);
+    }
+
+    public int getPrevJobResource(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getPrevJobResource(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setNextJobResource(int slotNum, int nextResourceSlotNum) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setNextJobResource(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, nextResourceSlotNum);
+    }
+
+    public int getNextJobResource(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getNextJobResource(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    //    public void setNextDatasetActor(int slotNum, int nextActorSlotNum) {
+    //        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setNextDatasetActor(
+    //                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, nextActorSlotNum);
+    //    }
+    //
+    //    public int getNextDatasetActor(int slotNum) {
+    //        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getNextDatasetActor(
+    //                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    //    }
+}
+
+/******************************************
+ * EntityInfo (28 bytes)
+ * ****************************************
+ * int jobId
+ * int datasetId
+ * int PKHashValue
+ * byte datasetLockMode
+ * byte datasetLockCount
+ * byte enitityLockMode
+ * byte entityLockCount
+ * int nextEntityActor : actor can be either holder/waiter/upgrader
+ * int prevJobResource : resource can be either dataset or entity and a job is holding/waiting/upgrading lock(s) on it.
+ * int nextJobResource : resource can be either dataset or entity and a job is holding/waiting/upgrading lock(s) on it.
+ * (int nextDatasetActor : actor can be either holder/waiter/upgrader) --> not used.
+ *******************************************/
+
+class ChildEntityInfoArrayManager {
+    public static final int ENTITY_INFO_SIZE = 28; //28bytes
+    public static final int NUM_OF_SLOTS = 1024; //number of entities in a buffer
+    //    public static final int NUM_OF_SLOTS = 10; //for unit test
+    public static final int BUFFER_SIZE = ENTITY_INFO_SIZE * NUM_OF_SLOTS;
+
+    //byte offset of each field of EntityInfo
+    public static final int JOB_ID_OFFSET = 0;
+    public static final int DATASET_ID_OFFSET = 4;
+    public static final int PKHASH_VAL_OFFSET = 8;
+    public static final int DATASET_LOCK_MODE_OFFSET = 12;
+    public static final int DATASET_LOCK_COUNT_OFFSET = 13;
+    public static final int ENTITY_LOCK_MODE_OFFSET = 14;
+    public static final int ENTITY_LOCK_COUNT_OFFSET = 15;
+    public static final int ENTITY_ACTOR_OFFSET = 16;
+    public static final int PREV_JOB_RESOURCE_OFFSET = 20;
+    public static final int NEXT_JOB_RESOURCE_OFFSET = 24;
+    //public static final int DATASET_ACTOR_OFFSET = 28;
+
+    //byte offset of nextFreeSlotNum which shares the same space of JobId
+    //If a slot is in use, the space is used for JobId. Otherwise, it is used for nextFreeSlotNum. 
+    public static final int NEXT_FREE_SLOT_OFFSET = 0;
+
+    private ByteBuffer buffer;
+    private int freeSlotNum;
+    private int occupiedSlots; //-1 represents 'deinitialized' state.
+
+    public ChildEntityInfoArrayManager() {
+        initialize();
+    }
+
+    public void initialize() {
+        this.buffer = ByteBuffer.allocate(BUFFER_SIZE);
+        this.freeSlotNum = 0;
+        this.occupiedSlots = 0;
+
+        for (int i = 0; i < NUM_OF_SLOTS - 1; i++) {
+            setNextFreeSlot(i, i + 1);
+        }
+        setNextFreeSlot(NUM_OF_SLOTS - 1, -1); //-1 represents EOL(end of link)
+    }
+
+    public int allocate() {
+        int currentSlot = freeSlotNum;
+        freeSlotNum = getNextFreeSlot(currentSlot);
+        occupiedSlots++;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName()+" entity allocate: "+currentSlot);
+        }
+        return currentSlot;
+    }
+
+    public void deallocate(int slotNum) {
+        setNextFreeSlot(slotNum, freeSlotNum);
+        freeSlotNum = slotNum;
+        occupiedSlots--;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName()+" entity deallocate: "+slotNum);
+        }
+    }
+
+    public void deinitialize() {
+        buffer = null;
+        occupiedSlots = -1;
+    }
+
+    public boolean isDeinitialized() {
+        return occupiedSlots == -1;
+    }
+
+    public boolean isFull() {
+        return occupiedSlots == NUM_OF_SLOTS;
+    }
+
+    public boolean isEmpty() {
+        return occupiedSlots == 0;
+    }
+
+    public int getNumOfOccupiedSlots() {
+        return occupiedSlots;
+    }
+
+    public int getFreeSlotNum() {
+        return freeSlotNum;
+    }
+
+    //////////////////////////////////////////////////////////////////
+    //   set/get method for each field of EntityInfo plus freeSlot
+    //////////////////////////////////////////////////////////////////
+    public void initEntityInfo(int slotNum, int jobId, int datasetId, int PKHashVal, byte lockMode) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + JOB_ID_OFFSET, jobId);
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + DATASET_ID_OFFSET, datasetId);
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + PKHASH_VAL_OFFSET, PKHashVal);
+        buffer.put(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_MODE_OFFSET, lockMode);
+        buffer.put(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_COUNT_OFFSET, (byte) 0);
+        buffer.put(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_MODE_OFFSET, lockMode);
+        buffer.put(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_COUNT_OFFSET, (byte) 0);
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + ENTITY_ACTOR_OFFSET, -1);
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + PREV_JOB_RESOURCE_OFFSET, -1);
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + NEXT_JOB_RESOURCE_OFFSET, -1);
+        //buffer.putInt(slotNum * ENTITY_INFO_SIZE + DATASET_ACTOR_OFFSET, -1);
+    }
+
+    public void setNextFreeSlot(int slotNum, int nextFreeSlot) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + NEXT_FREE_SLOT_OFFSET, nextFreeSlot);
+    }
+
+    public int getNextFreeSlot(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + NEXT_FREE_SLOT_OFFSET);
+    }
+
+    public void setJobId(int slotNum, int id) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + JOB_ID_OFFSET, id);
+    }
+
+    public int getJobId(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + JOB_ID_OFFSET);
+    }
+
+    public void setDatasetId(int slotNum, int id) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + DATASET_ID_OFFSET, id);
+    }
+
+    public int getDatasetId(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + DATASET_ID_OFFSET);
+    }
+
+    public void setPKHashVal(int slotNum, int hashVal) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + PKHASH_VAL_OFFSET, hashVal);
+    }
+
+    public int getPKHashVal(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + PKHASH_VAL_OFFSET);
+    }
+
+    public void setDatasetLockMode(int slotNum, byte mode) {
+        buffer.put(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_MODE_OFFSET, mode);
+    }
+
+    public byte getDatasetLockMode(int slotNum) {
+        return buffer.get(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_MODE_OFFSET);
+    }
+
+    public void setDatasetLockCount(int slotNum, byte count) {
+        buffer.put(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_COUNT_OFFSET, count);
+    }
+
+    public byte getDatasetLockCount(int slotNum) {
+        return buffer.get(slotNum * ENTITY_INFO_SIZE + DATASET_LOCK_COUNT_OFFSET);
+    }
+
+    public void setEntityLockMode(int slotNum, byte mode) {
+        buffer.put(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_MODE_OFFSET, mode);
+    }
+
+    public byte getEntityLockMode(int slotNum) {
+        return buffer.get(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_MODE_OFFSET);
+    }
+
+    public void setEntityLockCount(int slotNum, byte count) {
+        buffer.put(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_COUNT_OFFSET, count);
+    }
+
+    public byte getEntityLockCount(int slotNum) {
+        return buffer.get(slotNum * ENTITY_INFO_SIZE + ENTITY_LOCK_COUNT_OFFSET);
+    }
+
+    //Used for Waiter/Upgrader
+    public void setNextEntityActor(int slotNum, int nextActorSlotNum) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + ENTITY_ACTOR_OFFSET, nextActorSlotNum);
+    }
+
+    //Used for Waiter/Upgrader
+    public int getNextEntityActor(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + ENTITY_ACTOR_OFFSET);
+    }
+
+    //Used for Holder
+    public void setPrevEntityActor(int slotNum, int nextActorSlotNum) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + ENTITY_ACTOR_OFFSET, nextActorSlotNum);
+    }
+
+    //Used for Holder
+    public int getPrevEntityActor(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + ENTITY_ACTOR_OFFSET);
+    }
+
+    public void setPrevJobResource(int slotNum, int prevResourceSlotNum) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + PREV_JOB_RESOURCE_OFFSET, prevResourceSlotNum);
+    }
+
+    public int getPrevJobResource(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + PREV_JOB_RESOURCE_OFFSET);
+    }
+
+    public void setNextJobResource(int slotNum, int prevResourceSlotNum) {
+        buffer.putInt(slotNum * ENTITY_INFO_SIZE + NEXT_JOB_RESOURCE_OFFSET, prevResourceSlotNum);
+    }
+
+    public int getNextJobResource(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + NEXT_JOB_RESOURCE_OFFSET);
+    }
+
+    //    public void setNextDatasetActor(int slotNum, int nextActorSlotNum) {
+    //        buffer.putInt(slotNum * ENTITY_INFO_SIZE + DATASET_ACTOR_OFFSET, nextActorSlotNum);
+    //    }
+    //
+    //    public int getNextDatasetActor(int slotNum) {
+    //        return buffer.getInt(slotNum * ENTITY_INFO_SIZE + DATASET_ACTOR_OFFSET);
+    //    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java
new file mode 100644
index 0000000..59c20f2
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java
@@ -0,0 +1,801 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+
+/**
+ * EntityLockInfoManager provides EntityLockInfo arrays backed by ByteBuffer.
+ * The array grows when the slots are overflowed.
+ * Also, the array shrinks according to the following shrink policy
+ * : Shrink when the resource under-utilization lasts for a certain threshold time.
+ * 
+ * @author kisskys
+ */
+public class EntityLockInfoManager {
+
+    public static final int SHRINK_TIMER_THRESHOLD = 120000; //2min
+
+    private ArrayList<ChildEntityLockInfoArrayManager> pArray;
+    private int allocChild; //used to allocate the next free EntityInfo slot.
+    private long shrinkTimer;
+    private boolean isShrinkTimerOn;
+    private int occupiedSlots;
+    private EntityInfoManager entityInfoManager;
+    LockWaiterManager lockWaiterManager;
+
+    //        ////////////////////////////////////////////////
+    //        // begin of unit test
+    //        ////////////////////////////////////////////////
+    //    
+    //        public static final int SHRINK_TIMER_THRESHOLD = 0; //for unit test
+    //    
+    //        /**
+    //         * @param args
+    //         */
+    //        public static void main(String[] args) {
+    //            final int DataSize = 5000;
+    //    
+    //            int i, j;
+    //            int slots = ChildEntityLockInfoArrayManager.NUM_OF_SLOTS;
+    //            int data[] = new int[DataSize];
+    //            EntityLockInfoManager eliMgr = new EntityLockInfoManager();
+    //    
+    //            //allocate: 50
+    //            System.out.println("allocate: 50");
+    //            for (i = 0; i < 5; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    data[j] = eliMgr.allocate();
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //deallocate from the last child to the first child
+    //            System.out.println("deallocate from the last child to the first child");
+    //            for (i = 4; i >= 0; i--) {
+    //                for (j = i * slots + slots - 1; j >= i * slots; j--) {
+    //                    eliMgr.deallocate(data[j]);
+    //                }
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //allocate: 50
+    //            System.out.println("allocate: 50");
+    //            for (i = 0; i < 5; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    data[j] = eliMgr.allocate();
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //deallocate from the first child to last child
+    //            System.out.println("deallocate from the first child to last child");
+    //            for (i = 0; i < 5; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    eliMgr.deallocate(data[j]);
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //allocate: 50
+    //            System.out.println("allocate: 50");
+    //            for (i = 0; i < 5; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    data[j] = eliMgr.allocate();
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //deallocate from the first child to 4th child
+    //            System.out.println("deallocate from the first child to 4th child");
+    //            for (i = 0; i < 4; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    eliMgr.deallocate(data[j]);
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //    
+    //            //allocate: 40
+    //            System.out.println("allocate: 40");
+    //            for (i = 0; i < 4; i++) {
+    //                for (j = i * slots; j < i * slots + slots; j++) {
+    //                    data[j] = eliMgr.allocate();
+    //                }
+    //    
+    //                System.out.println(eliMgr.prettyPrint());
+    //            }
+    //        }
+    //        
+    //        ////////////////////////////////////////////////
+    //        // end of unit test
+    //        ////////////////////////////////////////////////
+
+    public EntityLockInfoManager(EntityInfoManager entityInfoManager, LockWaiterManager lockWaiterManager) {
+        pArray = new ArrayList<ChildEntityLockInfoArrayManager>();
+        pArray.add(new ChildEntityLockInfoArrayManager());
+        allocChild = 0;
+        occupiedSlots = 0;
+        isShrinkTimerOn = false;
+        this.entityInfoManager = entityInfoManager;
+        this.lockWaiterManager = lockWaiterManager;
+    }
+
+    public int allocate() {
+        if (pArray.get(allocChild).isFull()) {
+            int size = pArray.size();
+            boolean bAlloc = false;
+            ChildEntityLockInfoArrayManager child;
+
+            //find a deinitialized child and initialze it
+            for (int i = 0; i < size; i++) {
+                child = pArray.get(i);
+                if (child.isDeinitialized()) {
+                    child.initialize();
+                    allocChild = i;
+                    bAlloc = true;
+                    break;
+                }
+            }
+
+            //allocate new child when there is no deinitialized child
+            if (!bAlloc) {
+                pArray.add(new ChildEntityLockInfoArrayManager());
+                allocChild = pArray.size() - 1;
+            }
+        }
+        occupiedSlots++;
+        return pArray.get(allocChild).allocate() + allocChild * ChildEntityLockInfoArrayManager.NUM_OF_SLOTS;
+    }
+
+    void deallocate(int slotNum) {
+        pArray.get(slotNum / ChildEntityLockInfoArrayManager.NUM_OF_SLOTS).deallocate(
+                slotNum % ChildEntityLockInfoArrayManager.NUM_OF_SLOTS);
+        occupiedSlots--;
+
+        if (needShrink()) {
+            shrink();
+        }
+    }
+
+    /**
+     * Shrink policy:
+     * Shrink when the resource under-utilization lasts for a certain amount of time.
+     * TODO Need to figure out which of the policies is better
+     * case1.
+     * pArray status : O x x x x x O (O is initialized, x is deinitialized)
+     * In the above status, 'CURRENT' needShrink() returns 'TRUE'
+     * even if there is nothing to shrink or deallocate.
+     * It doesn't distinguish the deinitialized children from initialized children
+     * by calculating totalNumOfSlots = pArray.size() * ChildEntityLockInfoArrayManager.NUM_OF_SLOTS.
+     * In other words, it doesn't subtract the deinitialized children's slots.
+     * case2.
+     * pArray status : O O x x x x x
+     * However, in the above case, if we subtract the deinitialized children's slots,
+     * needShrink() will return false even if we shrink the pArray at this case.
+     * 
+     * @return
+     */
+    private boolean needShrink() {
+        int size = pArray.size();
+        int usedSlots = occupiedSlots;
+        if (usedSlots == 0) {
+            usedSlots = 1;
+        }
+
+        if (size > 1 && size * ChildEntityLockInfoArrayManager.NUM_OF_SLOTS / usedSlots >= 3) {
+            if (isShrinkTimerOn) {
+                if (System.currentTimeMillis() - shrinkTimer >= SHRINK_TIMER_THRESHOLD) {
+                    isShrinkTimerOn = false;
+                    return true;
+                }
+            } else {
+                //turn on timer
+                isShrinkTimerOn = true;
+                shrinkTimer = System.currentTimeMillis();
+            }
+        } else {
+            //turn off timer
+            isShrinkTimerOn = false;
+        }
+
+        return false;
+    }
+
+    /**
+     * Shrink() may
+     * deinitialize(:deallocates ByteBuffer of child) Children(s) or
+     * shrink pArray according to the deinitialized children's contiguity status.
+     * It doesn't deinitialze or shrink more than half of children at a time.
+     */
+    private void shrink() {
+        int i;
+        boolean bContiguous = true;
+        int decreaseCount = 0;
+        int size = pArray.size();
+        int maxDecreaseCount = size / 2;
+        ChildEntityLockInfoArrayManager child;
+        for (i = size - 1; i >= 0; i--) {
+            child = pArray.get(i);
+            if (child.isEmpty() || child.isDeinitialized()) {
+                if (bContiguous) {
+                    pArray.remove(i);
+                    if (++decreaseCount == maxDecreaseCount) {
+                        break;
+                    }
+                } else {
+                    bContiguous = false;
+                    if (child.isEmpty()) {
+                        child.deinitialize();
+                        if (++decreaseCount == maxDecreaseCount) {
+                            break;
+                        }
+                    }
+                }
+            } else {
+                bContiguous = false;
+            }
+        }
+
+        //reset allocChild when the child is removed or deinitialized.
+        size = pArray.size();
+        if (allocChild >= size || pArray.get(allocChild).isDeinitialized()) {
+            //set allocChild to any initialized one.
+            //It is guaranteed that there is at least one initialized child.
+            for (i = 0; i < size; i++) {
+                if (!pArray.get(i).isDeinitialized()) {
+                    allocChild = i;
+                    break;
+                }
+            }
+        }
+    }
+
+    public String prettyPrint() {
+        StringBuilder s = new StringBuilder("\n########### EntityLockInfoManager Status #############\n");
+        int size = pArray.size();
+        ChildEntityLockInfoArrayManager child;
+
+        for (int i = 0; i < size; i++) {
+            child = pArray.get(i);
+            if (child.isDeinitialized()) {
+                continue;
+            }
+            s.append("child[" + i + "]: occupiedSlots:" + child.getNumOfOccupiedSlots());
+            s.append(" freeSlotNum:" + child.getFreeSlotNum() + "\n");
+            s.append("\tX\t").append("S\t").append("LH\t").append("FW\t").append("UP\n");
+            for (int j = 0; j < ChildEntityLockInfoArrayManager.NUM_OF_SLOTS; j++) {
+                s.append(j).append(": ");
+                s.append("\t" + child.getXCount(j));
+                s.append("\t" + child.getSCount(j));
+                s.append("\t" + child.getLastHolder(j));
+                s.append("\t" + child.getFirstWaiter(j));
+                s.append("\t" + child.getUpgrader(j));
+                s.append("\n");
+            }
+            s.append("\n");
+        }
+        return s.toString();
+    }
+
+    //debugging method
+    public String printWaiters(int slotNum) {
+        StringBuilder s = new StringBuilder();
+        int waiterObjId;
+        LockWaiter waiterObj;
+        int entityInfo;
+
+        s.append("WID\tWCT\tEID\tJID\tDID\tPK\n");
+
+        waiterObjId = getFirstWaiter(slotNum);
+        while (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            s.append(waiterObjId).append("\t").append(waiterObj.getWaiterCount()).append("\t").append(entityInfo)
+                    .append("\t").append(entityInfoManager.getJobId(entityInfo)).append("\t")
+                    .append(entityInfoManager.getDatasetId(entityInfo)).append("\t")
+                    .append(entityInfoManager.getPKHashVal(entityInfo)).append("\n");
+            waiterObjId = waiterObj.getNextWaiterObjId();
+        }
+
+        return s.toString();
+    }
+
+    public void addHolder(int slotNum, int holder) {
+        entityInfoManager.setPrevEntityActor(holder, getLastHolder(slotNum));
+        setLastHolder(slotNum, holder);
+    }
+
+    /**
+     * Remove holder from linked list of Actor.
+     * Also, remove the corresponding resource from linked list of resource
+     * in order to minimize JobInfo's resource link traversal.
+     * 
+     * @param slotNum
+     * @param holder
+     * @param jobInfo
+     */
+    public void removeHolder(int slotNum, int holder, JobInfo jobInfo) {
+        int prev = getLastHolder(slotNum);
+        int current = -1;
+        int next;
+
+        //remove holder from linked list of Actor
+        while (prev != holder) {
+            if (LockManager.IS_DEBUG_MODE) {
+                if (prev == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            current = prev;
+            prev = entityInfoManager.getPrevEntityActor(current);
+        }
+
+        if (current != -1) {
+            //current->prev = prev->prev
+            entityInfoManager.setPrevEntityActor(current, entityInfoManager.getPrevEntityActor(prev));
+        } else {
+            //lastHolder = prev->prev
+            setLastHolder(slotNum, entityInfoManager.getPrevEntityActor(prev));
+        }
+
+        //Notice!!
+        //remove the corresponding resource from linked list of resource.
+        prev = entityInfoManager.getPrevJobResource(holder);
+        next = entityInfoManager.getNextJobResource(holder);
+
+        if (prev != -1) {
+            entityInfoManager.setNextJobResource(prev, next);
+        }
+
+        if (next != -1) {
+            entityInfoManager.setPrevJobResource(next, prev);
+        } else {
+            //This entityInfo(i.e., holder) is the last resource held by this job.
+            jobInfo.setlastHoldingResource(prev);
+        }
+
+        //jobInfo.decreaseDatasetLockCount(holder);
+    }
+
+    public void addWaiter(int slotNum, int waiterObjId) {
+        int lastObjId;
+        LockWaiter lastObj = null;
+        int firstWaiter = getFirstWaiter(slotNum);
+
+        if (firstWaiter != -1) {
+            //find the lastWaiter
+            lastObjId = firstWaiter;
+            while (lastObjId != -1) {
+                lastObj = lockWaiterManager.getLockWaiter(lastObjId);
+                lastObjId = lastObj.getNextWaiterObjId();
+            }
+            //last->next = new_waiter
+            lastObj.setNextWaiterObjId(waiterObjId);
+        } else {
+            setFirstWaiter(slotNum, waiterObjId);
+        }
+        //new_waiter->next = -1
+        lastObj = lockWaiterManager.getLockWaiter(waiterObjId);
+        lastObj.setNextWaiterObjId(-1);
+    }
+
+    public void removeWaiter(int slotNum, int waiterObjId) {
+        int currentObjId = getFirstWaiter(slotNum);
+        LockWaiter currentObj;
+        LockWaiter prevObj = null;
+        int prevObjId = -1;
+        int nextObjId;
+
+        while (currentObjId != waiterObjId) {
+
+            if (LockManager.IS_DEBUG_MODE) {
+                if (currentObjId == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            prevObj = lockWaiterManager.getLockWaiter(currentObjId);
+            prevObjId = currentObjId;
+            currentObjId = prevObj.getNextWaiterObjId();
+        }
+
+        //get current waiter object
+        currentObj = lockWaiterManager.getLockWaiter(currentObjId);
+
+        //get next waiterObjId
+        nextObjId = currentObj.getNextWaiterObjId();
+
+        if (prevObjId != -1) {
+            //prev->next = next
+            prevObj.setNextWaiterObjId(nextObjId);
+        } else {
+            //removed first waiter. firstWaiter = current->next
+            setFirstWaiter(slotNum, nextObjId);
+        }
+    }
+
+    public void addUpgrader(int slotNum, int waiterObjId) {
+        //[Notice]
+        //Even if there are multiple threads in a job try to upgrade lock mode on same resource which is entity-granule,
+        //while the first upgrader is waiting, all the incoming upgrade requests from other threads should be rejected by aborting them.
+        //Therefore, there is no actual "ADD" upgrader method. Instead, it only has "SET" upgrader method.
+        if (LockManager.IS_DEBUG_MODE) {
+            if (getUpgrader(slotNum) != -1) {
+                throw new IllegalStateException("Invalid lock upgrade request. This call should be handled as deadlock");
+            }
+        }
+
+        setUpgrader(slotNum, waiterObjId);
+    }
+
+    public void removeUpgrader(int slotNum, int waiterObjId) {
+        setUpgrader(slotNum, -1);
+    }
+
+    public boolean isUpgradeCompatible(int slotNum, byte lockMode, int entityInfo) {
+        switch (lockMode) {
+            case LockMode.X:
+                return getSCount(slotNum) - entityInfoManager.getEntityLockCount(entityInfo) == 0;
+
+            default:
+                throw new IllegalStateException("Invalid upgrade lock mode");
+        }
+    }
+
+    public boolean isCompatible(int slotNum, byte lockMode) {
+        switch (lockMode) {
+            case LockMode.X:
+                return getSCount(slotNum) == 0 && getXCount(slotNum) == 0;
+
+            case LockMode.S:
+                return getXCount(slotNum) == 0;
+
+            default:
+                throw new IllegalStateException("Invalid upgrade lock mode");
+        }
+    }
+
+    public int findEntityInfoFromHolderList(int eLockInfo, int jobId, int hashVal) {
+        int entityInfo = getLastHolder(eLockInfo);
+
+        while (entityInfo != -1) {
+            if (jobId == entityInfoManager.getJobId(entityInfo)
+                    && hashVal == entityInfoManager.getPKHashVal(entityInfo)) {
+                return entityInfo;
+            }
+            //            if (LockManager.IS_DEBUG_MODE) {
+            //                System.out.println("eLockInfo(" + eLockInfo + "),entityInfo(" + entityInfo + "), Request[" + jobId
+            //                        + "," + hashVal + "]:Result[" + entityInfoManager.getJobId(entityInfo) + ","
+            //                        + entityInfoManager.getPKHashVal(entityInfo) + "]");
+            //            }
+            entityInfo = entityInfoManager.getPrevEntityActor(entityInfo);
+        }
+
+        return -1;
+    }
+
+    public int findWaiterFromWaiterList(int eLockInfo, int jobId, int hashVal) {
+        int waiterObjId = getFirstWaiter(eLockInfo);
+        LockWaiter waiterObj;
+        int entityInfo;
+
+        while (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (jobId == entityInfoManager.getJobId(entityInfo)
+                    && hashVal == entityInfoManager.getPKHashVal(entityInfo)) {
+                return waiterObjId;
+            }
+            waiterObjId = waiterObj.getNextWaiterObjId();
+        }
+
+        return -1;
+    }
+
+    public int findUpgraderFromUpgraderList(int eLockInfo, int jobId, int hashVal) {
+        int waiterObjId = getUpgrader(eLockInfo);
+        LockWaiter waiterObj;
+        int entityInfo;
+
+        if (waiterObjId != -1) {
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (jobId == entityInfoManager.getJobId(entityInfo)
+                    && hashVal == entityInfoManager.getPKHashVal(entityInfo)) {
+                return waiterObjId;
+            }
+        }
+
+        return -1;
+    }
+
+    public void increaseLockCount(int slotNum, byte lockMode) {
+        switch (lockMode) {
+            case LockMode.X:
+                setXCount(slotNum, (short) (getXCount(slotNum) + 1));
+                break;
+            case LockMode.S:
+                setSCount(slotNum, (short) (getSCount(slotNum) + 1));
+                break;
+            default:
+                throw new IllegalStateException("Invalid entity lock mode " + lockMode);
+        }
+    }
+
+    public void decreaseLockCount(int slotNum, byte lockMode) {
+        switch (lockMode) {
+            case LockMode.X:
+                setXCount(slotNum, (short) (getXCount(slotNum) - 1));
+                break;
+            case LockMode.S:
+                setSCount(slotNum, (short) (getSCount(slotNum) - 1));
+                break;
+            default:
+                throw new IllegalStateException("Invalid entity lock mode " + lockMode);
+        }
+    }
+
+    public void increaseLockCount(int slotNum, byte lockMode, short count) {
+        switch (lockMode) {
+            case LockMode.X:
+                setXCount(slotNum, (short) (getXCount(slotNum) + count));
+                break;
+            case LockMode.S:
+                setSCount(slotNum, (short) (getSCount(slotNum) + count));
+                break;
+            default:
+                throw new IllegalStateException("Invalid entity lock mode " + lockMode);
+        }
+    }
+
+    public void decreaseLockCount(int slotNum, byte lockMode, short count) {
+        switch (lockMode) {
+            case LockMode.X:
+                setXCount(slotNum, (short) (getXCount(slotNum) - count));
+                break;
+            case LockMode.S:
+                setSCount(slotNum, (short) (getSCount(slotNum) - count));
+                break;
+            default:
+                throw new IllegalStateException("Invalid entity lock mode " + lockMode);
+        }
+    }
+
+    //////////////////////////////////////////////////////////////////
+    //   set/get method for each field of EntityLockInfo
+    //////////////////////////////////////////////////////////////////
+
+    public void setXCount(int slotNum, short count) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setXCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, count);
+    }
+
+    public short getXCount(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getXCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setSCount(int slotNum, short count) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setSCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, count);
+    }
+
+    public short getSCount(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getSCount(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setLastHolder(int slotNum, int holder) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setLastHolder(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, holder);
+    }
+
+    public int getLastHolder(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getLastHolder(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setFirstWaiter(int slotNum, int waiter) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setFirstWaiter(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, waiter);
+    }
+
+    public int getFirstWaiter(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getFirstWaiter(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+    public void setUpgrader(int slotNum, int upgrader) {
+        pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).setUpgrader(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS, upgrader);
+    }
+
+    public int getUpgrader(int slotNum) {
+        return pArray.get(slotNum / ChildEntityInfoArrayManager.NUM_OF_SLOTS).getUpgrader(
+                slotNum % ChildEntityInfoArrayManager.NUM_OF_SLOTS);
+    }
+
+}
+
+/******************************************
+ * EntityLockInfo (16 bytes)
+ * ****************************************
+ * short XCount : used to represent the count of X mode lock if it is allocated. Otherwise, it represents next free slot.
+ * short SCount
+ * int lastHolder
+ * int firstWaiter
+ * int upgrader : may exist only one since there are only S and X mode lock in Entity-level
+ *******************************************/
+
+class ChildEntityLockInfoArrayManager {
+    public static final int ENTITY_LOCK_INFO_SIZE = 16; //16bytes
+    public static final int NUM_OF_SLOTS = 1024; //number of entityLockInfos in a buffer
+    //public static final int NUM_OF_SLOTS = 10; //for unit test
+    public static final int BUFFER_SIZE = ENTITY_LOCK_INFO_SIZE * NUM_OF_SLOTS;
+
+    //byte offset of each field of EntityLockInfo
+    public static final int XCOUNT_OFFSET = 0;
+    public static final int SCOUNT_OFFSET = 2;
+    public static final int LAST_HOLDER_OFFSET = 4;
+    public static final int FIRST_WAITER_OFFSET = 8;
+    public static final int UPGRADER_OFFSET = 12;
+
+    //byte offset of nextFreeSlotNum which shares the same space with LastHolder field
+    //If a slot is in use, the space is used for LastHolder. Otherwise, it is used for nextFreeSlotNum. 
+    public static final int NEXT_FREE_SLOT_OFFSET = 4;
+
+    private ByteBuffer buffer;
+    private int freeSlotNum;
+    private int occupiedSlots; //-1 represents 'deinitialized' state.
+
+    public ChildEntityLockInfoArrayManager() {
+        initialize();
+    }
+
+    public void initialize() {
+        this.buffer = ByteBuffer.allocate(BUFFER_SIZE);
+        this.freeSlotNum = 0;
+        this.occupiedSlots = 0;
+
+        for (int i = 0; i < NUM_OF_SLOTS - 1; i++) {
+            setNextFreeSlot(i, i + 1);
+        }
+        setNextFreeSlot(NUM_OF_SLOTS - 1, -1); //-1 represents EOL(end of link)
+    }
+
+    public int allocate() {
+        int currentSlot = freeSlotNum;
+        freeSlotNum = getNextFreeSlot(currentSlot);
+        //initialize values
+        setXCount(currentSlot, (short) 0);
+        setSCount(currentSlot, (short) 0);
+        setLastHolder(currentSlot, -1);
+        setFirstWaiter(currentSlot, -1);
+        setUpgrader(currentSlot, -1);
+        occupiedSlots++;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName() + " Allocated ELockInfo[" + currentSlot + "]");
+        }
+        return currentSlot;
+    }
+
+    public void deallocate(int slotNum) {
+        setNextFreeSlot(slotNum, freeSlotNum);
+        freeSlotNum = slotNum;
+        occupiedSlots--;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName() + " Deallocated ELockInfo[" + slotNum + "]");
+        }
+    }
+
+    public void deinitialize() {
+        buffer = null;
+        occupiedSlots = -1;
+    }
+
+    public boolean isDeinitialized() {
+        return occupiedSlots == -1;
+    }
+
+    public boolean isFull() {
+        return occupiedSlots == NUM_OF_SLOTS;
+    }
+
+    public boolean isEmpty() {
+        return occupiedSlots == 0;
+    }
+
+    public int getNumOfOccupiedSlots() {
+        return occupiedSlots;
+    }
+
+    public int getFreeSlotNum() {
+        return freeSlotNum;
+    }
+
+    //////////////////////////////////////////////////////////////////
+    //   set/get method for each field of EntityLockInfo plus freeSlot
+    //////////////////////////////////////////////////////////////////
+
+    public void setNextFreeSlot(int slotNum, int nextFreeSlot) {
+        buffer.putInt(slotNum * ENTITY_LOCK_INFO_SIZE + NEXT_FREE_SLOT_OFFSET, nextFreeSlot);
+    }
+
+    public int getNextFreeSlot(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_LOCK_INFO_SIZE + NEXT_FREE_SLOT_OFFSET);
+    }
+
+    public void setXCount(int slotNum, short count) {
+        buffer.putShort(slotNum * ENTITY_LOCK_INFO_SIZE + XCOUNT_OFFSET, count);
+    }
+
+    public short getXCount(int slotNum) {
+        return buffer.getShort(slotNum * ENTITY_LOCK_INFO_SIZE + XCOUNT_OFFSET);
+    }
+
+    public void setSCount(int slotNum, short count) {
+        buffer.putShort(slotNum * ENTITY_LOCK_INFO_SIZE + SCOUNT_OFFSET, count);
+    }
+
+    public short getSCount(int slotNum) {
+        return buffer.getShort(slotNum * ENTITY_LOCK_INFO_SIZE + SCOUNT_OFFSET);
+    }
+
+    public void setLastHolder(int slotNum, int holder) {
+        buffer.putInt(slotNum * ENTITY_LOCK_INFO_SIZE + LAST_HOLDER_OFFSET, holder);
+    }
+
+    public int getLastHolder(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_LOCK_INFO_SIZE + LAST_HOLDER_OFFSET);
+    }
+
+    public void setFirstWaiter(int slotNum, int waiter) {
+        buffer.putInt(slotNum * ENTITY_LOCK_INFO_SIZE + FIRST_WAITER_OFFSET, waiter);
+    }
+
+    public int getFirstWaiter(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_LOCK_INFO_SIZE + FIRST_WAITER_OFFSET);
+    }
+
+    public void setUpgrader(int slotNum, int upgrader) {
+        buffer.putInt(slotNum * ENTITY_LOCK_INFO_SIZE + UPGRADER_OFFSET, upgrader);
+    }
+
+    public int getUpgrader(int slotNum) {
+        return buffer.getInt(slotNum * ENTITY_LOCK_INFO_SIZE + UPGRADER_OFFSET);
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java
index b8c0e17..1341cc1 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java
@@ -15,12 +15,16 @@
 package edu.uci.ics.asterix.transaction.management.service.locking;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
 /**
- * @author pouria Interface for the lockManager
+ * Interface for the lockManager
+ * 
+ * @author pouria 
+ * @author kisskys
+ * 
  */
-
 public interface ILockManager {
 
     /**
@@ -36,13 +40,13 @@
      * has a "weaker" lock, then the request would be interpreted as a convert
      * request
      * Waiting transaction would eventually garb the lock, or get timed-out
-     * 
-     * @param resourceID
-     * @param mode
-     * @return
+     * @param datasetId
+     * @param entityHashValue
+     * @param lockMode
+     * @param txnContext
      * @throws ACIDException
      */
-    public boolean lock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException;
+    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext) throws ACIDException;
 
     /**
      * The method releases "All" the locks taken/waiting-on by a specific
@@ -50,58 +54,72 @@
      * potential waiters, which can be waken up based on their requested lock
      * mode and the waiting policy would be waken up
      * 
-     * @param context
-     * @return
+     * @param txnContext
      * @throws ACIDException
      */
-    public Boolean releaseLocks(TransactionContext context) throws ACIDException;
+    public void releaseLocks(TransactionContext txnContext) throws ACIDException;
 
     /**
-     * Releases "All" the locks by a transaction on a "single specific" resource
-     * Upon releasing, potential waiters, which can be waken up based on their
-     * requested lock mode and the waiting policy would be waken up
      * 
-     * @param resourceID
-     * @return
-     * @throws ACIDException
+     * @param datasetId
+     * @param entityHashValue
+     * @param txnContext
+     * @throws ACIDException TODO
      */
-    public boolean unlock(TransactionContext context, byte[] resourceID) throws ACIDException;
+    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext) throws ACIDException;
 
     /**
-     * Request to convert granted lockMode of a transaction on a specific
-     * resource. Requesting transaction would either grab the lock, or sent to
-     * waiting based on the type of the request, and current mask on the
-     * resource and possible set of waiting converters
-     * - If the transaction does not have any lock on the resource, then an
-     * exception is thrown - If the transaction already has a stronger lock,
-     * then no operation is taken
      * 
-     * @param context
-     * @param resourceID
-     * @param mode
-     * @return
-     * @throws ACIDException
+     * @param datasetId
+     * @param entityHashValue
+     * @param txnContext
+     * @throws ACIDException TODO
      */
-    public boolean convertLock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException;
-
+    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext, boolean commitFlag) throws ACIDException;
+    
     /**
      * Call to lock and unlock a specific resource in a specific lock mode
-     * 
+     * @param datasetId
+     * @param entityHashValue
+     * @param lockMode TODO
      * @param context
-     * @param resourceID
-     * @param mode
-     * @param timeout
+     * 
      * @return
      * @throws ACIDException
      */
-    public boolean getInstantlock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException;
+    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext context) throws ACIDException;
 
+
+    /**
+     * 
+     * @param datasetId
+     * @param entityHashValue
+     * @param lockMode
+     * @param context
+     * @return
+     * @throws ACIDException
+     */
+    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext context) throws ACIDException;
+    
+    /**
+     * 
+     * @param datasetId
+     * @param entityHashValue
+     * @param lockMode
+     * @param txnContext
+     * @return
+     * @throws ACIDException
+     */
+    boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException;
     /**
      * Prints out the contents of the transactions' table in a readable fashion
      * 
      * @return
      * @throws ACIDException
      */
-    public String getDebugLockStatus() throws ACIDException;
+    public String prettyPrint() throws ACIDException;
+
+
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
new file mode 100644
index 0000000..4f01f37
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
@@ -0,0 +1,305 @@
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+
+public class JobInfo {
+    private EntityInfoManager entityInfoManager;
+    private LockWaiterManager lockWaiterManager;
+    private TransactionContext jobCtx;
+    private int lastHoldingResource; //resource(entity or dataset) which is held by this job lastly
+    private int firstWaitingResource; //resource(entity or dataset) which this job is waiting for
+    private int upgradingResource; //resource(entity or dataset) which this job is waiting for to upgrade
+
+    private PrimitiveIntHashMap datasetISLockHT; //used for keeping dataset-granule-lock's count acquired by this job. 
+
+    public JobInfo(EntityInfoManager entityInfoManager, LockWaiterManager lockWaiterManager, TransactionContext txnCtx) {
+        this.entityInfoManager = entityInfoManager;
+        this.lockWaiterManager = lockWaiterManager;
+        this.jobCtx = txnCtx;
+        this.lastHoldingResource = -1;
+        this.firstWaitingResource = -1;
+        this.upgradingResource = -1;
+        if (LockManager.ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            //This table maintains the number of locks acquired by this jobInfo.
+            //[Notice] But this doesn't decrease the count even if the lock is released.
+            this.datasetISLockHT = new PrimitiveIntHashMap(1 << 4, 1 << 2, Integer.MAX_VALUE);
+        }
+    }
+
+    public void addHoldingResource(int resource) {
+
+        if (LockManager.IS_DEBUG_MODE) {
+            if (entityInfoManager.getJobId(resource) != jobCtx.getJobId().getId()) {
+                throw new IllegalStateException("JobInfo(" + jobCtx.getJobId().getId() + ") has diffrent Job(JID:"
+                        + entityInfoManager.getJobId(resource) + "'s resource!!!");
+            }
+            //System.out.println(Thread.currentThread().getName()+"\tJobInfo_AddHolder:"+ resource);
+        }
+
+        if (lastHoldingResource != -1) {
+            entityInfoManager.setNextJobResource(lastHoldingResource, resource);
+        }
+        entityInfoManager.setPrevJobResource(resource, lastHoldingResource);
+        entityInfoManager.setNextJobResource(resource, -1);
+        lastHoldingResource = resource;
+    }
+
+    public void removeHoldingResource(int resource) {
+        int current = lastHoldingResource;
+        int prev;
+        int next;
+
+        if (LockManager.IS_DEBUG_MODE) {
+            if (entityInfoManager.getJobId(resource) != jobCtx.getJobId().getId()) {
+                throw new IllegalStateException("JobInfo(" + jobCtx.getJobId().getId() + ") has diffrent Job(JID:"
+                        + entityInfoManager.getJobId(resource) + "'s resource!!!");
+            }
+            //System.out.println(Thread.currentThread().getName()+"\tJobInfo_RemoveHolder:"+ resource);
+        }
+
+        while (current != resource) {
+
+            if (LockManager.IS_DEBUG_MODE) {
+                if (current == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            current = entityInfoManager.getPrevJobResource(current);
+        }
+
+        prev = entityInfoManager.getPrevJobResource(current);
+        next = entityInfoManager.getNextJobResource(current);
+        //update prev->next = next
+        if (prev != -1) {
+            entityInfoManager.setNextJobResource(prev, next);
+        }
+        if (next != -1) {
+            entityInfoManager.setPrevJobResource(next, prev);
+        }
+        if (lastHoldingResource == resource) {
+            lastHoldingResource = prev;
+        }
+
+        //decreaseDatasetLockCount(resource);
+    }
+
+    public void addWaitingResource(int waiterObjId) {
+        int lastObjId;
+        LockWaiter lastObj = null;
+
+        if (firstWaitingResource != -1) {
+            //find the lastWaiter
+            lastObjId = firstWaitingResource;
+            while (lastObjId != -1) {
+                lastObj = lockWaiterManager.getLockWaiter(lastObjId);
+                if (LockManager.IS_DEBUG_MODE) {
+                    int entityInfo = lastObj.getEntityInfoSlot();
+                    if (entityInfoManager.getJobId(entityInfo) != jobCtx.getJobId().getId()) {
+                        throw new IllegalStateException("JobInfo(" + jobCtx.getJobId().getId()
+                                + ") has diffrent Job(JID:" + entityInfoManager.getJobId(entityInfo) + "'s resource!!!");
+                    }
+                }
+                lastObjId = lastObj.getNextWaitingResourceObjId();
+            }
+            //last->next = new_waiter
+            lastObj.setNextWaitingResourceObjId(waiterObjId);
+        } else {
+            firstWaitingResource = waiterObjId;
+        }
+        //new_waiter->next = -1
+        lastObj = lockWaiterManager.getLockWaiter(waiterObjId);
+        if (LockManager.IS_DEBUG_MODE) {
+            int entityInfo = lastObj.getEntityInfoSlot();
+            if (entityInfoManager.getJobId(entityInfo) != jobCtx.getJobId().getId()) {
+                throw new IllegalStateException("JobInfo(" + jobCtx.getJobId().getId() + ") has diffrent Job(JID:"
+                        + entityInfoManager.getJobId(entityInfo) + "'s resource!!!");
+            }
+        }
+        lastObj.setNextWaitingResourceObjId(-1);
+
+        //        if (LockManager.IS_DEBUG_MODE) {
+        //            System.out.println(Thread.currentThread().getName()+"\tJobInfo_AddWaiter:"+ waiterObjId + ", FirstWaiter:"+firstWaitingResource);            
+        //        }
+    }
+
+    public void removeWaitingResource(int waiterObjId) {
+        int currentObjId = firstWaitingResource;
+        LockWaiter currentObj;
+        LockWaiter prevObj = null;
+        int prevObjId = -1;
+        int nextObjId;
+
+        while (currentObjId != waiterObjId) {
+
+            if (LockManager.IS_DEBUG_MODE) {
+                if (currentObjId == -1) {
+                    //shouldn't occur: debugging purpose
+                    try {
+                        throw new Exception();
+                    } catch (Exception e) {
+                        // TODO Auto-generated catch block
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            prevObj = lockWaiterManager.getLockWaiter(currentObjId);
+            prevObjId = currentObjId;
+            currentObjId = prevObj.getNextWaitingResourceObjId();
+        }
+
+        //get current waiter object
+        currentObj = lockWaiterManager.getLockWaiter(currentObjId);
+
+        if (LockManager.IS_DEBUG_MODE) {
+            int entityInfo = currentObj.getEntityInfoSlot();
+            if (entityInfoManager.getJobId(entityInfo) != jobCtx.getJobId().getId()) {
+                throw new IllegalStateException("JobInfo(" + jobCtx.getJobId().getId() + ") has diffrent Job(JID:"
+                        + entityInfoManager.getJobId(entityInfo) + "'s resource!!!");
+            }
+        }
+
+        //get next waiterObjId
+        nextObjId = currentObj.getNextWaitingResourceObjId();
+
+        if (prevObjId != -1) {
+            //prev->next = next
+            prevObj.setNextWaitingResourceObjId(nextObjId);
+        } else {
+            //removed first waiter. firstWaiter = current->next
+            firstWaitingResource = nextObjId;
+        }
+
+        //        if (LockManager.IS_DEBUG_MODE) {
+        //            System.out.println(Thread.currentThread().getName()+"\tJobInfo_RemoveWaiter:"+ waiterObjId + ", FirstWaiter:"+firstWaitingResource);            
+        //        }
+    }
+
+    public void increaseDatasetISLockCount(int datasetId) {
+        int count = datasetISLockHT.get(datasetId);
+        if (count == -1) {
+            datasetISLockHT.put(datasetId, 1);
+        } else {
+            datasetISLockHT.upsert(datasetId, count + 1);
+        }
+    }
+
+    public void decreaseDatasetISLockCount(int datasetId) {
+        int count = datasetISLockHT.get(datasetId);
+        if (count >= LockManager.ESCALATE_TRHESHOLD_ENTITY_TO_DATASET) {
+            //do not decrease the count since it is already escalated.
+        } else if (count > 1) {
+            datasetISLockHT.upsert(datasetId, count - 1);
+        } else if (count == 1) {
+            datasetISLockHT.remove(datasetId);
+        } else if (count <= 0) {
+            throw new IllegalStateException("Illegal state of datasetLock count(" + count + ") in JobInfo's dLockHT");
+        }
+    }
+
+    public int getDatasetISLockCount(int datasetId) {
+        int count = datasetISLockHT.get(datasetId);
+        if (count == -1) {
+            return 0;
+        } else {
+            return count;
+        }
+    }
+
+    /**********************************************************************************
+     * public boolean isDatasetLockGranted(int datasetId) {
+     * return dLockHT.get(datasetId) == -1 ? false : true;
+     * }
+     **********************************************************************************/
+
+    public boolean isDatasetLockGranted(int datasetId, byte lockMode) {
+        int entityInfo = lastHoldingResource;
+        byte datasetLockMode;
+
+        while (entityInfo != -1) {
+            datasetLockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+            datasetLockMode = entityInfoManager.getPKHashVal(entityInfo) == -1 ? datasetLockMode
+                    : datasetLockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+            if (entityInfoManager.getDatasetId(entityInfo) == datasetId
+                    && isStrongerOrEqualToLockMode(datasetLockMode, lockMode)) {
+                return true;
+            }
+            entityInfo = entityInfoManager.getPrevJobResource(entityInfo);
+        }
+        return false;
+    }
+
+    //check whether LockMode modeA is stronger than or equal to LockMode modeB
+    private boolean isStrongerOrEqualToLockMode(byte modeA, byte modeB) {
+        switch (modeB) {
+            case LockMode.X:
+                return modeA == LockMode.X;
+
+            case LockMode.IX:
+                return modeA == LockMode.IX || modeA == LockMode.X;
+
+            case LockMode.S:
+                return modeA == LockMode.S || modeA == LockMode.X;
+
+            case LockMode.IS:
+                return true;
+
+            default:
+                throw new IllegalStateException("Unsupported dataset lock mode.");
+        }
+    }
+
+    public String printHoldingResource() {
+        StringBuilder s = new StringBuilder();
+        int entityInfo = lastHoldingResource;
+
+        while (entityInfo != -1) {
+            s.append("entityInfo[").append(entityInfo).append("] ");
+            s.append(entityInfoManager.getJobId(entityInfo)).append(" ");
+            s.append(entityInfoManager.getDatasetId(entityInfo)).append(" ");
+            s.append(entityInfoManager.getPKHashVal(entityInfo)).append(" ");
+            s.append(entityInfoManager.getDatasetLockMode(entityInfo)).append(" ");
+            s.append(entityInfoManager.getDatasetLockCount(entityInfo)).append(" ");
+            s.append(entityInfoManager.getEntityLockCount(entityInfo)).append(" ");
+            s.append(entityInfoManager.getEntityLockMode(entityInfo)).append(" ");
+            s.append("\n");
+            entityInfo = entityInfoManager.getPrevJobResource(entityInfo);
+        }
+        return s.toString();
+    }
+
+    /////////////////////////////////////////////////////////
+    //  set/get method for private variable
+    /////////////////////////////////////////////////////////
+    public void setlastHoldingResource(int resource) {
+        lastHoldingResource = resource;
+    }
+
+    public int getLastHoldingResource() {
+        return lastHoldingResource;
+    }
+
+    public void setFirstWaitingResource(int resource) {
+        firstWaitingResource = resource;
+    }
+
+    public int getFirstWaitingResource() {
+        return firstWaitingResource;
+    }
+
+    public void setUpgradingResource(int resource) {
+        upgradingResource = resource;
+    }
+
+    public int getUpgradingResource() {
+        return upgradingResource;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockInfo.java
deleted file mode 100644
index f3bd6f3..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockInfo.java
+++ /dev/null
@@ -1,621 +0,0 @@
-package edu.uci.ics.asterix.transaction.management.service.locking;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-
-/**
- * @author pouria An instance shows information on a "single resource" about
- *         1) current granted locks on the resource to all transactions 2) locks
- *         that are being waiting on by all converting transactions 3) locks
- *         that are being waiting on by all regular waiting transactions
- *         Each lock mode is interpreted as an integer, and it has a
- *         corresponding bit in the mask variable mask variable should be
- *         interpreted as a sequence of bits, where the i-th bit is 1, if and
- *         only if some transaction(s) have a lock of mode i on this resource
- *         counter is an array which has an entry for each lock mode, and its
- *         i-th entry shows the total number of locks of mode i, granted to all
- *         transactions
- */
-
-public class LockInfo {
-    final int NUM_OF_LOCK_MODES = 32;
-    final int TX_ARRAY_SIZE = 50;
-    final int EOL = -1;
-
-    public static final int NOT_FOUND = -2;
-    public static final int UNKNOWN_IX = -3;
-    public static final int ANY_LOCK_MODE = -4;
-    public static final int UNKNOWN_LOCK_MODE = -5;
-
-    private int mask; // i-th bit corresponds to the i-th lock mode
-    private int[] counter; // i-th entry shows total num of granted locks of
-                           // mode i
-
-    private ArrayList<Integer> grantedList; // (contains index of entries, in
-                                            // the txId, mode and counter lists)
-    private ArrayList<WaitingInfo> convertList; // Waiting Converters
-    private ArrayList<WaitingInfo> waitList; // Regular Waiters
-
-    int nextFreeIx; // Head of free entries lists
-    private ArrayList<long[]> txIdList; // i-th entry shows the id of the
-                                        // granted/waiting transactions
-    private ArrayList<int[]> modeList; // i-th entry shows the mode of the
-                                       // granted/waiting-on lock
-    private ArrayList<int[]> counterList; // i-th entry shows the number of
-                                          // locks (with the defined mode) a
-                                          // transaction has taken (In a free
-                                          // entry is used as the next ptr (next
-                                          // free entry))
-
-    public LockInfo() {
-        this.mask = 0;
-        this.counter = new int[NUM_OF_LOCK_MODES];
-        this.grantedList = new ArrayList<Integer>();
-        this.waitList = new ArrayList<WaitingInfo>();
-        this.convertList = new ArrayList<WaitingInfo>();
-        nextFreeIx = 0;
-        this.txIdList = new ArrayList<long[]>();
-        txIdList.add(new long[TX_ARRAY_SIZE]);
-        this.modeList = new ArrayList<int[]>();
-        modeList.add(new int[TX_ARRAY_SIZE]);
-        this.counterList = new ArrayList<int[]>();
-        counterList.add(initArray(0));
-    }
-
-    private int[] initArray(int ixToStart) {
-        int[] n = new int[TX_ARRAY_SIZE];
-        for (int i = 0; i < TX_ARRAY_SIZE - 1; i++) { // Initializing a new set
-                                                      // of entries, attaching
-                                                      // them
-            n[i] = (++ixToStart); // to the chain of free entries
-        }
-        n[TX_ARRAY_SIZE - 1] = EOL;
-        return n;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @return the index of the entry corresponding to the transaction with the
-     *         specified granted lock
-     * @throws ACIDException
-     */
-    public int findInGrantedList(long txId, int lMode) throws ACIDException {
-        for (int i : grantedList) {
-            if ((getTxId(i) == txId) && ((lMode == ANY_LOCK_MODE) || (lMode == getLockMode(i)))) {
-                return i;
-            }
-        }
-        return NOT_FOUND;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @return the index of the entry corresponding to the transaction which is
-     *         waiting (as a converter) for the specified lock
-     * @throws ACIDException
-     */
-    public int findInConvertList(long txId, int lMode) throws ACIDException {
-        for (WaitingInfo wi : convertList) {
-            int i = wi.getWaitingEntry().getIX();
-            if ((getTxId(i) == txId) && ((lMode == ANY_LOCK_MODE) || (lMode == getLockMode(i)))) {
-                return i;
-            }
-        }
-        return NOT_FOUND;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @return the index of the entry corresponding to the transaction which is
-     *         waiting (as a regular waiter) for the specified lock
-     * @throws ACIDException
-     */
-    public int findInWaitList(long txId, int lMode) throws ACIDException {
-        for (WaitingInfo wi : waitList) {
-            int i = wi.getWaitingEntry().getIX();
-            if ((getTxId(i) == txId) && ((lMode == ANY_LOCK_MODE) || (lMode == getLockMode(i)))) {
-                return i;
-            }
-        }
-        return NOT_FOUND;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @return the object, on which the specified transaction is waiting for the
-     *         specified lock
-     * @throws ACIDException
-     */
-    public WaitingInfo getWaitingOnObject(long txId, int lMode) throws ACIDException {
-        WaitingInfo wObj = null;
-        Iterator<WaitingInfo> cIt = convertList.iterator();
-        while (cIt.hasNext()) {
-            wObj = cIt.next();
-            int ix = wObj.getWaitingEntry().getIX();
-            if ((getTxId(ix) == txId) && ((lMode == ANY_LOCK_MODE) || (lMode == getLockMode(ix)))) {
-                return wObj;
-            }
-        }
-
-        Iterator<WaitingInfo> wIt = waitList.iterator();
-        while (wIt.hasNext()) {
-            wObj = wIt.next();
-            int ix = wObj.getWaitingEntry().getIX();
-            if ((getTxId(ix) == txId) && ((lMode == ANY_LOCK_MODE) || (lMode == getLockMode(ix)))) {
-                return wObj;
-            }
-        }
-        throw new ACIDException("Waiting Entry for transaction " + txId + " Could not be found");
-    }
-
-    public Iterator<WaitingInfo> getIteratorOnConverter() {
-        return (convertList.iterator());
-    }
-
-    public Iterator<WaitingInfo> getIteratorOnWaiters() {
-        return (waitList.iterator());
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param eix
-     *            index of the entry corresponding to the transaction, its
-     *            granted lock and its counter
-     * @throws ACIDException
-     */
-    public void addToGranted(long txId, int lMode, int eix) throws ACIDException {
-        if (eix == UNKNOWN_IX) {
-            eix = findInGrantedList(txId, lMode);
-        }
-        if (eix == NOT_FOUND) { // new lock of mode lMode for Txr
-            int ix = allocateEntryForRequest();
-            grantedList.add(ix);
-            setTxId(txId, ix);
-            setLockMode(lMode, ix);
-            setReqCount(1, ix);
-            mask |= (0x01 << lMode);
-        } else { // Redundant lock of mode lMode for Txr
-            incReqCount(eix);
-        }
-        counter[lMode]++;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param eix
-     *            index of the entry corresponding to the transaction, its
-     *            granted lock and its counter
-     * @throws ACIDException
-     */
-    public void removeFromGranted(long txId, int lMode, int eix) throws ACIDException {
-        removeFromGranted(txId, lMode, true, eix);
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param forced
-     *            whether to remove all the locks, with the given mode, grabbed
-     *            by the transaction or consider the counter (removing just one
-     *            lock in case the transaction has several locks with the
-     *            specified mode)
-     * @param eix
-     *            index of the entry corresponding to the transaction, its
-     *            granted lock and its counter
-     * @throws ACIDException
-     */
-    private void removeFromGranted(long txId, int lMode, boolean forced, int eix) throws ACIDException {
-        if (eix == UNKNOWN_IX) {
-            eix = findInGrantedList(txId, lMode);
-            if (eix == NOT_FOUND) {
-                return;
-            }
-        }
-
-        if (lMode == ANY_LOCK_MODE) {
-            lMode = getLockMode(eix);
-        }
-
-        int count = getReqCount(eix);
-        if (!forced) {
-            if (count > 1) {
-                setReqCount((count - 1), eix);
-                counter[lMode]--;
-                return;
-            }
-        }
-        // forced or count is 1
-        grantedList.remove((new Integer(eix)));
-        freeEntry(eix);
-        counter[lMode] -= count;
-        if (counter[lMode] == 0) { // No one else has lock with this mode
-            mask &= (~(0x00 | (0x01 << lMode)));
-        }
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param entry
-     *            the object, specified transaction is going to wait on
-     * @throws ACIDException
-     */
-    public void addToConvert(long txId, int lMode, WaitEntry entry) throws ACIDException {
-        int eix = findInConvertList(txId, lMode);
-        if (eix == NOT_FOUND) {
-            int ix = allocateEntryForRequest();
-            entry.setIx(ix);
-            entry.setForWait();
-            convertList.add(new WaitingInfo(entry));
-            setTxId(txId, ix);
-            setLockMode(lMode, ix);
-            setReqCount(1, ix);
-        } else {
-            throw new ACIDException("Adding an already existing converter");
-        }
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param eix
-     *            index of the entry corresponding to the transaction in the
-     *            converters list
-     * @throws ACIDException
-     */
-    public void prepareToRemoveFromConverters(long txId, int lMode, int eix) throws ACIDException {
-        prepareToRemoveFromConverters(txId, lMode, true, eix);
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param forced
-     *            whether to ignore the counter and remove the transaction from
-     *            the converters list or consider the request counter
-     * @param eix
-     *            index of the entry corresponding to the transaction in the
-     *            converters list
-     * @throws ACIDException
-     */
-    private void prepareToRemoveFromConverters(long txId, int lMode, boolean forced, int eix) throws ACIDException {
-        if (eix == UNKNOWN_IX) {
-            eix = findInConvertList(txId, lMode);
-            if (eix == NOT_FOUND) {
-                throw new ACIDException("Lock entry not found in the waiting list");
-            }
-        }
-        freeEntry(eix);
-    }
-
-    /**
-     * @param txId
-     * @return the object specified transaction is waiting on for conversion
-     * @throws ACIDException
-     */
-    public WaitEntry removeFromConverters(long txId) throws ACIDException {
-        Iterator<WaitingInfo> it = convertList.iterator();
-        while (it.hasNext()) {
-            WaitingInfo next = it.next();
-            if (getTxId(next.getWaitingEntry().getIX()) == txId) {
-                it.remove();
-                return next.getWaitingEntry();
-            }
-        }
-        return null;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param entry
-     * @throws ACIDException
-     */
-    public void addToWaiters(long txId, int lMode, WaitEntry entry) throws ACIDException {
-        int ix = allocateEntryForRequest();
-        entry.setIx(ix);
-        entry.setForWait();
-        waitList.add(new WaitingInfo(entry));
-        setTxId(txId, ix);
-        setLockMode(lMode, ix);
-        setReqCount(1, ix);
-    }
-
-    public void prepareToRemoveFromWaiters(long txId, int lMode, int eix) throws ACIDException {
-        prepareToRemoveFromWaiters(txId, lMode, true, eix);
-    }
-
-    /**
-     * Removes and recycles the entry containing the information about the
-     * transaction, its lock mode and the counter
-     * 
-     * @param txId
-     * @param lMode
-     * @param forced
-     * @param eix
-     *            index of the entry, needs to be freed
-     * @throws ACIDException
-     */
-    private void prepareToRemoveFromWaiters(long txId, int lMode, boolean forced, int eix) throws ACIDException {
-        if (eix == UNKNOWN_IX) {
-            eix = findInWaitList(txId, lMode);
-            if (eix == NOT_FOUND) {
-                throw new ACIDException("Lock entry not found in the waiting list");
-            }
-        }
-        freeEntry(eix);
-    }
-
-    /**
-     * @param txId
-     * @return the object the transaction is waiting on (as a regular waiter)
-     * @throws ACIDException
-     */
-    public WaitEntry removeFromWaiters(long txId) throws ACIDException {
-        Iterator<WaitingInfo> it = waitList.iterator();
-        while (it.hasNext()) {
-            WaitingInfo next = it.next();
-            if (getTxId(next.getWaitingEntry().getIX()) == txId) {
-                it.remove();
-                return next.getWaitingEntry();
-            }
-        }
-        return null;
-    }
-
-    /**
-     * @param lMode
-     * @param eix
-     *            index of the entry corresponding to the transaction's lock and
-     *            its counter
-     */
-    public void grantRedundantLock(int lMode, int eix) {
-        incReqCount(eix);
-        counter[lMode]++;
-    }
-
-    /**
-     * @param txId
-     * @param eix
-     *            index of the entry corresponding to the transaction
-     * @return the actual lock mode, granted to the specified transaction
-     * @throws ACIDException
-     */
-    public int getGrantedLockMode(long txId, int eix) throws ACIDException {
-        if (eix != UNKNOWN_IX) {
-            return getLockMode(eix);
-        }
-        int ix = findInGrantedList(txId, ANY_LOCK_MODE);
-        if (ix == NOT_FOUND) {
-            return UNKNOWN_LOCK_MODE;
-        }
-        return getLockMode(ix);
-    }
-
-    /**
-     * @param txId
-     * @param eix
-     *            index of the entry corresponding to the transaction
-     * @return the actual lock mode, the specified transaction is waiting to
-     *         convert to
-     * @throws ACIDException
-     */
-    public int getConvertLockMode(long txId, int eix) throws ACIDException {
-        if (eix != UNKNOWN_IX) {
-            return getLockMode(eix);
-        }
-        int ix = findInConvertList(txId, ANY_LOCK_MODE);
-        if (ix == NOT_FOUND) {
-            return UNKNOWN_LOCK_MODE;
-        }
-        return getLockMode(ix);
-    }
-
-    /**
-     * @param txId
-     * @param eix
-     *            index of the entry corresponding to the transaction
-     * @return the actual lock mode, the specified transaction is waiting to
-     *         grab
-     * @throws ACIDException
-     */
-    public int getWaitLockMode(long txId, int eix) throws ACIDException {
-        if (eix != UNKNOWN_IX) {
-            return getLockMode(eix);
-        }
-        int ix = findInWaitList(txId, ANY_LOCK_MODE);
-        if (ix == NOT_FOUND) {
-            return UNKNOWN_LOCK_MODE;
-        }
-        return getLockMode(ix);
-    }
-
-    public boolean isConvertListEmpty() {
-        return (!(convertList.size() > 0));
-    }
-
-    public int getMask() {
-        return mask;
-    }
-
-    /**
-     * @param txId
-     * @param lMode
-     * @param eix
-     *            index of the entry corresponding to the transaction's
-     *            currently grabbed lock
-     * @return the updated as if the granted lock to the specified transaction
-     *         gets removed from it (Mainly used to exclude self-conflicts when
-     *         checking for conversions)
-     * @throws ACIDException
-     */
-    public int getUpdatedMask(long txId, int lMode, int eix) throws ACIDException {
-        if (eix == UNKNOWN_IX) {
-            eix = findInGrantedList(txId, lMode);
-        }
-        if (eix == NOT_FOUND) {
-            return mask;
-        }
-
-        int txCount = getReqCount(eix);
-        int totalCount = getLockAggCounter(lMode);
-
-        if (totalCount == txCount) { // txId is the only lock-holder with this
-                                     // mode
-            return (mask & (~(0x00 | (0x01 << lMode))));
-        }
-
-        return mask;
-    }
-
-    /**
-     * @param lmix
-     * @return the total number of locks of the specified mode, grabbed on this
-     *         resource (by all transactions)
-     */
-    private int getLockAggCounter(int lmix) {
-        return counter[lmix];
-    }
-
-    /**
-     * Populates the grantedIDs list with the ids of all transactions in the
-     * granted list
-     * 
-     * @param grantedIDs
-     */
-    public void getGrantedListTxIDs(ArrayList<Long> grantedIDs) {
-        Iterator<Integer> gIt = grantedList.iterator();
-        while (gIt.hasNext()) {
-            grantedIDs.add(getTxId(gIt.next()));
-        }
-    }
-
-    /**
-     * @return the index of an entry that can be used to capture one transaction
-     *         and its requested/granted lock mode and the counter
-     */
-    private int allocateEntryForRequest() {
-        if (nextFreeIx == EOL) {
-            nextFreeIx = txIdList.size() * TX_ARRAY_SIZE;
-            txIdList.add(new long[TX_ARRAY_SIZE]);
-            modeList.add(new int[TX_ARRAY_SIZE]);
-            counterList.add(initArray(nextFreeIx));
-        }
-        int ixToRet = nextFreeIx;
-        nextFreeIx = getReqCount(nextFreeIx);
-        return ixToRet;
-    }
-
-    /**
-     * @param ix
-     *            index of the entry, to be recycled
-     */
-    private void freeEntry(int ix) {
-        setReqCount(nextFreeIx, ix); // counter holds ptr to next free entry in
-                                     // free entries
-        nextFreeIx = ix;
-    }
-
-    /**
-     * @param ix
-     *            index of the entry that captures the transaction id
-     * @return id of the transaction whose info is captured in the specified
-     *         index
-     */
-    public long getTxId(int ix) {
-        return (txIdList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE]);
-    }
-
-    /**
-     * @param txId
-     * @param ix
-     *            index of the entry that will capture the transaction id
-     */
-    private void setTxId(long txId, int ix) {
-        txIdList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE] = txId;
-    }
-
-    /**
-     * @param ix
-     *            index of the entry that captures the lock mode
-     *            requested/grabbed by the specified transaction
-     * @return
-     */
-    public int getLockMode(int ix) {
-        return (modeList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE]);
-    }
-
-    /**
-     * @param lMode
-     * @param index
-     *            of the entry that will capture the lock mode requested/grabbed
-     *            by the specified transaction
-     */
-    private void setLockMode(int lMode, int ix) {
-        modeList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE] = lMode;
-    }
-
-    /**
-     * @param ix
-     * @return index of the entry that captures the counter of locks
-     */
-    public int getReqCount(int ix) {
-        return (counterList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE]);
-    }
-
-    /**
-     * @param count
-     * @param ix
-     *            index of the entry that captures the counter of locks
-     */
-    private void setReqCount(int count, int ix) {
-        counterList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE] = count;
-    }
-
-    /**
-     * @param ix
-     *            index of the counter, needed to be incremented on behalf of a
-     *            transaction
-     */
-    private void incReqCount(int ix) {
-        counterList.get(ix / TX_ARRAY_SIZE)[ix % TX_ARRAY_SIZE]++;
-    }
-}
-
-class WaitingInfo {
-    /**
-     * An object of this class captures the information corresponding to a
-     * regular or converter waiter
-     */
-
-    private boolean isVictim; // Whether the corresponding transaction is an
-                              // Victim or it can be waken up safely
-    private WaitEntry waitEntry; // The object, on which the waiter is waiting.
-                                 // This object is mainly used to notify the
-                                 // waiter, to be waken up
-
-    public WaitingInfo(WaitEntry waitEntry) {
-        this.waitEntry = waitEntry;
-        this.isVictim = false;
-    }
-
-    public boolean isVictim() {
-        return isVictim;
-    }
-
-    public void setAsVictim() {
-        this.isVictim = true;
-    }
-
-    public WaitEntry getWaitingEntry() {
-        return this.waitEntry;
-    }
-}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
index 22cab54..aeb54b5 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
@@ -1,982 +1,1851 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package edu.uci.ics.asterix.transaction.management.service.locking;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Hashtable;
+import java.util.HashMap;
 import java.util.Iterator;
-import java.util.Properties;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.logging.Level;
-import java.util.logging.Logger;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 /**
- * @author pouria An implementation of the ILockManager interface for the
- *         specific case of locking protocol with two lock modes: (S) and (X),
- *         where S lock mode is shown by 0, and X lock mode is shown by 1.
- * @see ILockManager, DeadlockDetector, TimeOutDetector, ILockMatrix,
- *      LockMatrix, TxrInfo and LockInfo
+ * An implementation of the ILockManager interface for the
+ * specific case of locking protocol with two lock modes: (S) and (X),
+ * where S lock mode is shown by 0, and X lock mode is shown by 1.
+ * 
+ * @author pouria, kisskys
  */
 
 public class LockManager implements ILockManager {
 
-    private static final Logger LOGGER = Logger.getLogger(LockManager.class.getName());
+    public static final boolean IS_DEBUG_MODE = false;//true
 
-    final int INIT_TABLE_SIZE = 50;
-    private LMTables lmTables;
-    ILockMatrix lMtx;
+    public static final boolean ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET = true;
+    public static final int ESCALATE_TRHESHOLD_ENTITY_TO_DATASET = 1000;
+    private static final int DO_ESCALATE = 0;
+    private static final int ESCALATED = 1;
+    private static final int DONOT_ESCALATE = 2;
 
-    WaitObjectManager woManager;
-    TimeOutDetector toutDetector;
-    DeadlockDetector deadlockDetector;
+    private TransactionSubsystem txnSubsystem;
 
-    public LockManager(TransactionProvider factory) throws ACIDException {
-        Properties p = new Properties();
-        InputStream is = null;
-        ILockMatrix lockMatrix = null;
-        int[] confTab = null;
-        int[] convTab = null;
+    //all threads accessing to LockManager's tables such as jobHT and datasetResourceHT
+    //are serialized through LockTableLatch. All threads waiting the latch will be fairly served
+    //in FIFO manner when the latch is available. 
+    private final ReadWriteLock lockTableLatch;
+    private final ReadWriteLock waiterLatch;
+    private HashMap<JobId, JobInfo> jobHT;
+    private HashMap<DatasetId, DatasetLockInfo> datasetResourceHT;
 
-        try {
-            File file = new File(TransactionManagementConstants.LockManagerConstants.LOCK_CONF_DIR + File.separator
-                    + TransactionManagementConstants.LockManagerConstants.LOCK_CONF_FILE);
-            if (file.exists()) {
-                is = new FileInputStream(TransactionManagementConstants.LockManagerConstants.LOCK_CONF_DIR
-                        + File.separator + TransactionManagementConstants.LockManagerConstants.LOCK_CONF_FILE);
-                p.load(is);
-                confTab = getConfTab(p);
-                convTab = getConvTab(p);
-            } else {
-                if (LOGGER.isLoggable(Level.SEVERE)) {
-                    LOGGER.severe("Lock configuration file not found, using defaults !");
-                }
-                confTab = TransactionManagementConstants.LockManagerConstants.LOCK_CONFLICT_MATRIX;
-                convTab = TransactionManagementConstants.LockManagerConstants.LOCK_CONVERT_MATRIX;
-            }
-            lockMatrix = new LockMatrix(confTab, convTab);
-            initialize(lockMatrix);
-        } catch (IOException ioe) {
-            if (is != null) {
-                try {
-                    is.close();
-                } catch (IOException e) {
-                    throw new ACIDException("unable to close input stream ", e);
-                }
-            }
-            throw new ACIDException(" unable to create LockManager", ioe);
-        }
-    }
+    private EntityLockInfoManager entityLockInfoManager;
+    private EntityInfoManager entityInfoManager;
+    private LockWaiterManager lockWaiterManager;
 
-    private static int[] getConfTab(Properties properties) {
-        return null;
-    }
+    private DeadlockDetector deadlockDetector;
+    private TimeOutDetector toutDetector;
+    private DatasetId tempDatasetIdObj; //temporary object to avoid object creation
 
-    private static int[] getConvTab(Properties properties) {
-        return null;
-    }
+    private int tryLockDatasetGranuleRevertOperation;
 
-    private void initialize(ILockMatrix matrix) throws ACIDException {
-        this.lmTables = new LMTables(INIT_TABLE_SIZE);
-        this.lMtx = matrix;
-        woManager = new WaitObjectManager();
-        this.deadlockDetector = new DeadlockDetector(this);
+    private LockRequestTracker lockRequestTracker; //for debugging
+    private ConsecutiveWakeupContext consecutiveWakeupContext;
+
+    //TODO 
+    //This code should be taken care properly when there is a way to avoid doubling memory space for txnIds. 
+    private LogicalLogLocator logicalLogLocator;
+
+    public LockManager(TransactionSubsystem txnSubsystem) throws ACIDException {
+        this.txnSubsystem = txnSubsystem;
+        this.lockTableLatch = new ReentrantReadWriteLock(true);
+        this.waiterLatch = new ReentrantReadWriteLock(true);
+        this.jobHT = new HashMap<JobId, JobInfo>();
+        this.datasetResourceHT = new HashMap<DatasetId, DatasetLockInfo>();
+        this.entityInfoManager = new EntityInfoManager();
+        this.lockWaiterManager = new LockWaiterManager();
+        this.entityLockInfoManager = new EntityLockInfoManager(entityInfoManager, lockWaiterManager);
+        this.deadlockDetector = new DeadlockDetector(jobHT, datasetResourceHT, entityLockInfoManager,
+                entityInfoManager, lockWaiterManager);
         this.toutDetector = new TimeOutDetector(this);
+        this.tempDatasetIdObj = new DatasetId(0);
+        this.consecutiveWakeupContext = new ConsecutiveWakeupContext();
+
+        this.logicalLogLocator = LogUtil.getDummyLogicalLogLocator(txnSubsystem.getLogManager());
+
+        if (IS_DEBUG_MODE) {
+            this.lockRequestTracker = new LockRequestTracker();
+        }
     }
 
     @Override
-    public boolean lock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException {
-        long txId = context.getTransactionID();
-        TxrInfo txrInfo = null;
-        WaitEntry waitObj = null;
-        Boolean isConverting = false;
-        int grantedMode = -1;
-        LockInfo lInfo = null;
-        boolean shouldAbort = false;
+    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException {
+        internalLock(datasetId, entityHashValue, lockMode, txnContext);
+    }
 
-        synchronized (lmTables) {
-            txrInfo = lmTables.getTxrInfo(txId);
-            if (txrInfo == null) {
-                txrInfo = new TxrInfo(context);
-                lmTables.putTxrInfo(txId, txrInfo);
-            }
+    private void internalLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException {
 
-            lInfo = lmTables.getLockInfo(resourceID);
-            if (lInfo == null) { // First lock on the resource, grant it
-                lInfo = new LockInfo();
-                lInfo.addToGranted(txId, mode, LockInfo.NOT_FOUND);
-                lmTables.putLockInfo(resourceID, lInfo);
-                txrInfo.addGrantedLock(resourceID, mode);
-                return true;
-            }
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int dId = datasetId.getId(); //int-type datasetId
+        int entityInfo;
+        int eLockInfo = -1;
+        DatasetLockInfo dLockInfo = null;
+        JobInfo jobInfo;
+        byte datasetLockMode = entityHashValue == -1 ? lockMode : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+        boolean isEscalated = false;
 
-            int eix = lInfo.findInGrantedList(txId, LockInfo.ANY_LOCK_MODE);
-            if (eix == LockInfo.NOT_FOUND) { // First lock by this Txr on the
-                                             // resource
-                if (!lInfo.isConvertListEmpty()) { // If Some converter(s)
-                                                   // is(are) waiting, Txr needs
-                                                   // to wait for fairness
+        latchLockTable();
+        validateJob(txnContext);
 
-                    // ----Deadlock Detection ---
-                    if (!isDeadlockFree(txId, resourceID)) {
-                        if (LOGGER.isLoggable(Level.INFO)) {
-                            LOGGER.info("DEADLOCK DETECTED FOR TRANSACTION " + txId);
-                        }
-                        context.setStatus(TransactionContext.TIMED_OUT_SATUS);
-                        shouldAbort = true;
-                    }
-                    // ---------------------------
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Requested", RequestType.LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                    dLockInfo, eLockInfo);
+        }
 
-                    else { // Safe to wait
-                        waitObj = woManager.allocate();
-                        if (waitObj == null) {
-                            throw new ACIDException("Invalid (null) object allocated as the WaitEntry for Txr " + txId);
-                        }
-                        lInfo.addToWaiters(txId, mode, waitObj);
-                        txrInfo.setWaitOnRid(resourceID);
-                        context.setStartWaitTime(System.currentTimeMillis());
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
 
-                    }
-                } else { // No converter(s) waiting
-                    int mask = lInfo.getMask();
-                    if (lMtx.conflicts(mask, mode)) { // If There is conflict,
-                                                      // Txr needs to wait
+        if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            if (datasetLockMode == LockMode.IS && jobInfo != null && dLockInfo != null) {
+                int upgradeStatus = needUpgradeFromEntityToDataset(jobInfo, dId, lockMode);
+                switch (upgradeStatus) {
+                    case DO_ESCALATE:
+                        entityHashValue = -1;
+                        isEscalated = true;
+                        break;
 
-                        // ----Deadlock Detection ---
-                        if (!isDeadlockFree(txId, resourceID)) {
-                            if (LOGGER.isLoggable(Level.INFO)) {
-                                LOGGER.info("DEADLOCK DETECTED FOR TRANSACTION " + txId);
-                            }
-                            context.setStatus(TransactionContext.TIMED_OUT_SATUS);
-                            shouldAbort = true;
-                        }
-                        // ---------------------------
-                        else { // Safe to wait
-                            waitObj = woManager.allocate();
-                            if (waitObj == null) {
-                                throw new ACIDException("Invalid (null) object allocated as the WaitEntry for Txr "
-                                        + txId);
-                            }
-                            lInfo.addToWaiters(txId, mode, waitObj);
-                            txrInfo.setWaitOnRid(resourceID);
-                            context.setStartWaitTime(System.currentTimeMillis());
-                        }
-                    } else { // No conflicts with the current mask, just grant
-                        // it
-                        lInfo.addToGranted(txId, mode, LockInfo.NOT_FOUND);
-                        txrInfo.addGrantedLock(resourceID, mode);
-                        return true;
-                    }
-                }
-            }
+                    case ESCALATED:
+                        unlatchLockTable();
+                        return;
 
-            else { // Redundant or Conversion
-                grantedMode = lInfo.getGrantedLockMode(txId, eix);
-                if (grantedMode == mode) {
-                    lInfo.grantRedundantLock(mode, eix);
-                    return true; // No need to update tInfo
-                } else {
-                    if (lMtx.isConversion(grantedMode, mode)) {
-                        isConverting = true;
-                    } else {
-                        return true; // Txr already has a stronger lock on the
-                                     // resource
-                    }
-
+                    default:
+                        break;
                 }
             }
         }
 
-        if (isConverting) {
+        //#. if the datasetLockInfo doesn't exist in datasetResourceHT 
+        if (dLockInfo == null || dLockInfo.isNoHolder()) {
+            if (dLockInfo == null) {
+                dLockInfo = new DatasetLockInfo(entityLockInfoManager, entityInfoManager, lockWaiterManager);
+                datasetResourceHT.put(new DatasetId(dId), dLockInfo); //datsetId obj should be created
+            }
+            entityInfo = entityInfoManager.allocate(jId, dId, entityHashValue, lockMode);
+
+            //if dataset-granule lock
+            if (entityHashValue == -1) { //-1 stands for dataset-granule
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                dLockInfo.increaseLockCount(datasetLockMode);
+                dLockInfo.addHolder(entityInfo);
+            } else {
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                dLockInfo.increaseLockCount(datasetLockMode);
+                //add entityLockInfo
+                eLockInfo = entityLockInfoManager.allocate();
+                dLockInfo.getEntityResourceHT().put(entityHashValue, eLockInfo);
+                entityInfoManager.increaseEntityLockCount(entityInfo);
+                entityLockInfoManager.increaseLockCount(eLockInfo, lockMode);
+                entityLockInfoManager.addHolder(eLockInfo, entityInfo);
+            }
+
+            if (jobInfo == null) {
+                jobInfo = new JobInfo(entityInfoManager, lockWaiterManager, txnContext);
+                jobHT.put(jobId, jobInfo); //jobId obj doesn't have to be created
+            }
+            jobInfo.addHoldingResource(entityInfo);
+
+            if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+                if (datasetLockMode == LockMode.IS) {
+                    jobInfo.increaseDatasetISLockCount(dId);
+                }
+            }
+
+            if (IS_DEBUG_MODE) {
+                trackLockRequest("Granted", RequestType.LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                        dLockInfo, eLockInfo);
+            }
+
+            unlatchLockTable();
+            return;
+        }
+
+        //#. the datasetLockInfo exists in datasetResourceHT.
+        //1. handle dataset-granule lock
+        entityInfo = lockDatasetGranule(datasetId, entityHashValue, lockMode, txnContext);
+
+        //2. handle entity-granule lock
+        if (entityHashValue != -1) {
+            lockEntityGranule(datasetId, entityHashValue, lockMode, entityInfo, txnContext);
+        }
+
+        if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            if (isEscalated) {
+                releaseDatasetISLocks(jobInfo, jobId, datasetId, txnContext);
+            }
+            if (jobInfo != null && datasetLockMode == LockMode.IS) {
+                jobInfo.increaseDatasetISLockCount(dId);
+            }
+        }
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Granted", RequestType.LOCK, datasetId, entityHashValue, lockMode, txnContext, dLockInfo,
+                    eLockInfo);
+        }
+        unlatchLockTable();
+        return;
+    }
+
+    private void releaseDatasetISLocks(JobInfo jobInfo, JobId jobId, DatasetId datasetId, TransactionContext txnContext)
+            throws ACIDException {
+        int entityInfo;
+        int prevEntityInfo;
+        int entityHashValue;
+        int did;//int-type dataset id
+
+        //while traversing all holding resources, 
+        //release IS locks on the escalated dataset and
+        //release S locks on the corresponding enttites
+        //by calling unlock() method.
+        entityInfo = jobInfo.getLastHoldingResource();
+        while (entityInfo != -1) {
+            prevEntityInfo = entityInfoManager.getPrevJobResource(entityInfo);
+
+            //release a lock only if the datset is the escalated dataset and
+            //the entityHashValue is not -1("not -1" means a non-dataset-level lock)
+            did = entityInfoManager.getDatasetId(entityInfo);
+            entityHashValue = entityInfoManager.getPKHashVal(entityInfo);
+            if (did == datasetId.getId() && entityHashValue != -1) {
+                this.unlock(datasetId, entityHashValue, txnContext);
+            }
+
+            entityInfo = prevEntityInfo;
+        }
+    }
+
+    private int needUpgradeFromEntityToDataset(JobInfo jobInfo, int datasetId, byte lockMode) {
+        //we currently allow upgrade only if the lockMode is S. 
+        if (lockMode != LockMode.S) {
+            return DONOT_ESCALATE;
+        }
+
+        int count = jobInfo.getDatasetISLockCount(datasetId);
+        if (count == ESCALATE_TRHESHOLD_ENTITY_TO_DATASET) {
+            return DO_ESCALATE;
+        } else if (count > ESCALATE_TRHESHOLD_ENTITY_TO_DATASET) {
+            return ESCALATED;
+        } else {
+            return DONOT_ESCALATE;
+        }
+    }
+
+    private void validateJob(TransactionContext txnContext) throws ACIDException {
+        if (txnContext.getTxnState() == TransactionState.ABORTED) {
+            unlatchLockTable();
+            throw new ACIDException("" + txnContext.getJobId() + " is in ABORTED state.");
+        } else if (txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS) {
             try {
-                return convertLockForNewTransaction(context, resourceID, grantedMode, mode);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
+                requestAbort(txnContext);
+            } finally {
+                unlatchLockTable();
             }
         }
+    }
 
-        if (shouldAbort) {
-            requestTxrAbort(context);
-            return false;
-        }
+    private int lockDatasetGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
+            TransactionContext txnContext) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int dId = datasetId.getId(); //int-type datasetId
+        int waiterObjId;
+        int entityInfo = -1;
+        DatasetLockInfo dLockInfo;
+        JobInfo jobInfo;
+        boolean isUpgrade = false;
+        int weakerModeLockCount;
+        int waiterCount = 0;
+        byte datasetLockMode = entityHashValue == -1 ? lockMode : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
 
-        // Txr needs to wait and it is safe to wait
-        synchronized (waitObj) {
-            while (waitObj.needWait()) {
-                try {
-                    waitObj.wait();
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+
+        //check duplicated call
+
+        //1. lock request causing duplicated upgrading requests from different threads in a same job
+        waiterObjId = dLockInfo.findUpgraderFromUpgraderList(jId, entityHashValue);
+        if (waiterObjId != -1) {
+            //make the caller wait on the same LockWaiter object
+            entityInfo = lockWaiterManager.getLockWaiter(waiterObjId).getEntityInfoSlot();
+            waiterCount = handleLockWaiter(dLockInfo, -1, entityInfo, true, true, txnContext, jobInfo, waiterObjId);
+
+            //Only for the first-get-up thread, the waiterCount will be more than 0 and
+            //the thread updates lock count on behalf of the all other waiting threads.
+            //Therefore, all the next-get-up threads will not update any lock count.
+            if (waiterCount > 0) {
+                //add ((the number of waiting upgrader) - 1) to entityInfo's dataset lock count and datasetLockInfo's lock count
+                //where -1 is for not counting the first upgrader's request since the lock count for the first upgrader's request
+                //is already counted.
+                weakerModeLockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+                entityInfoManager.setDatasetLockMode(entityInfo, lockMode);
+                entityInfoManager.increaseDatasetLockCount(entityInfo, waiterCount - 1);
+
+                if (entityHashValue == -1) { //dataset-granule lock
+                    dLockInfo.increaseLockCount(LockMode.X, weakerModeLockCount + waiterCount - 1);//new lock mode
+                    dLockInfo.decreaseLockCount(LockMode.S, weakerModeLockCount);//current lock mode
+                } else {
+                    dLockInfo.increaseLockCount(LockMode.IX, weakerModeLockCount + waiterCount - 1);
+                    dLockInfo.decreaseLockCount(LockMode.IS, weakerModeLockCount);
                 }
             }
-            // Txr just woke up
-            woManager.deAllocate(waitObj);
-            if (context.getStatus() == TransactionContext.TIMED_OUT_SATUS) { // selected
-                                                                             // as
-                                                                             // a
-                                                                             // victim
-                requestTxrAbort(context);
-                return false;
+
+            return entityInfo;
+        }
+
+        //2. lock request causing duplicated waiting requests from different threads in a same job
+        waiterObjId = dLockInfo.findWaiterFromWaiterList(jId, entityHashValue);
+        if (waiterObjId != -1) {
+            //make the caller wait on the same LockWaiter object
+            entityInfo = lockWaiterManager.getLockWaiter(waiterObjId).getEntityInfoSlot();
+            waiterCount = handleLockWaiter(dLockInfo, -1, entityInfo, false, true, txnContext, jobInfo, waiterObjId);
+
+            if (waiterCount > 0) {
+                entityInfoManager.increaseDatasetLockCount(entityInfo, waiterCount);
+                if (entityHashValue == -1) {
+                    dLockInfo.increaseLockCount(datasetLockMode, waiterCount);
+                    dLockInfo.addHolder(entityInfo);
+                } else {
+                    dLockInfo.increaseLockCount(datasetLockMode, waiterCount);
+                    //IS and IX holders are implicitly handled.
+                }
+                //add entityInfo to JobInfo's holding-resource list
+                jobInfo.addHoldingResource(entityInfo);
+            }
+
+            return entityInfo;
+        }
+
+        //3. lock request causing duplicated holding requests from different threads or a single thread in a same job
+        entityInfo = dLockInfo.findEntityInfoFromHolderList(jId, entityHashValue);
+        if (entityInfo == -1) {
+
+            entityInfo = entityInfoManager.allocate(jId, dId, entityHashValue, lockMode);
+            if (jobInfo == null) {
+                jobInfo = new JobInfo(entityInfoManager, lockWaiterManager, txnContext);
+                jobHT.put(jobId, jobInfo);
+            }
+
+            //wait if any upgrader exists or upgrading lock mode is not compatible
+            if (dLockInfo.getFirstUpgrader() != -1 || dLockInfo.getFirstWaiter() != -1
+                    || !dLockInfo.isCompatible(datasetLockMode)) {
+
+                /////////////////////////////////////////////////////////////////////////////////////////////
+                //[Notice] Mimicking SIX mode
+                //When the lock escalation from IS to S in dataset-level is allowed, the following case occurs
+                //DatasetLockInfo's SCount = 1 and the same job who carried out the escalation tries to insert,
+                //then the job should be able to insert without being blocked by itself. 
+                //Our approach is to introduce SIX mode, but we don't have currently, 
+                //so I simply mimicking SIX by allowing S and IX coexist in the dataset level 
+                //only if their job id is identical for the requests. 
+                if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+                    if (datasetLockMode == LockMode.IX && dLockInfo.getSCount() == 1
+                            && jobInfo.isDatasetLockGranted(dId, LockMode.S)) {
+                        entityInfoManager.increaseDatasetLockCount(entityInfo);
+                        //IX holders are implicitly handled without adding holder
+                        dLockInfo.increaseLockCount(datasetLockMode);
+                        //add entityInfo to JobInfo's holding-resource list
+                        jobInfo.addHoldingResource(entityInfo);
+                        return entityInfo;
+                    }
+                }
+                ///////////////////////////////////////////////////////////////////////////////////////////////
+
+                /////////////////////////////////////////////////////////////////////////////////////////////
+                //[Notice]
+                //There has been no same caller as (jId, dId, entityHashValue) triplet.
+                //But there could be the same caller as (jId, dId) pair.
+                //For example, two requests (J1, D1, E1) and (J1, D1, E2) are considered as duplicated call in dataset-granule perspective.
+                //Therefore, the above duplicated call case is covered in the following code.
+                //find the same dataset-granule lock request, that is, (J1, D1) pair in the above example.
+                //if (jobInfo.isDatasetLockGranted(dId, datasetLockMode)) {
+                if (jobInfo.isDatasetLockGranted(dId, LockMode.IS)) {
+                    if (dLockInfo.isCompatible(datasetLockMode)) {
+                        //this is duplicated call
+                        entityInfoManager.increaseDatasetLockCount(entityInfo);
+                        if (entityHashValue == -1) {
+                            dLockInfo.increaseLockCount(datasetLockMode);
+                            dLockInfo.addHolder(entityInfo);
+                        } else {
+                            dLockInfo.increaseLockCount(datasetLockMode);
+                            //IS and IX holders are implicitly handled.
+                        }
+                        //add entityInfo to JobInfo's holding-resource list
+                        jobInfo.addHoldingResource(entityInfo);
+
+                        return entityInfo;
+                    } else {
+                        //considered as upgrader
+                        waiterCount = handleLockWaiter(dLockInfo, -1, entityInfo, true, true, txnContext, jobInfo, -1);
+                        if (waiterCount > 0) {
+                            entityInfoManager.increaseDatasetLockCount(entityInfo);
+                            if (entityHashValue == -1) {
+                                dLockInfo.increaseLockCount(datasetLockMode);
+                                dLockInfo.addHolder(entityInfo);
+                            } else {
+                                dLockInfo.increaseLockCount(datasetLockMode);
+                                //IS and IX holders are implicitly handled.
+                            }
+                            //add entityInfo to JobInfo's holding-resource list
+                            jobInfo.addHoldingResource(entityInfo);
+                        }
+                        return entityInfo;
+                    }
+                }
+                /////////////////////////////////////////////////////////////////////////////////////////////
+
+                waiterCount = handleLockWaiter(dLockInfo, -1, entityInfo, false, true, txnContext, jobInfo, -1);
+            } else {
+                waiterCount = 1;
+            }
+
+            if (waiterCount > 0) {
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                if (entityHashValue == -1) {
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                    dLockInfo.addHolder(entityInfo);
+                } else {
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                    //IS and IX holders are implicitly handled.
+                }
+                //add entityInfo to JobInfo's holding-resource list
+                jobInfo.addHoldingResource(entityInfo);
+            }
+        } else {
+            isUpgrade = isLockUpgrade(entityInfoManager.getDatasetLockMode(entityInfo), lockMode);
+            if (isUpgrade) { //upgrade call 
+                //wait if any upgrader exists or upgrading lock mode is not compatible
+                if (dLockInfo.getFirstUpgrader() != -1 || !dLockInfo.isUpgradeCompatible(datasetLockMode, entityInfo)) {
+                    waiterCount = handleLockWaiter(dLockInfo, -1, entityInfo, true, true, txnContext, jobInfo, -1);
+                } else {
+                    waiterCount = 1;
+                }
+
+                if (waiterCount > 0) {
+                    //add ((the number of waiting upgrader) - 1) to entityInfo's dataset lock count and datasetLockInfo's lock count
+                    //where -1 is for not counting the first upgrader's request since the lock count for the first upgrader's request
+                    //is already counted.
+                    weakerModeLockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+                    entityInfoManager.setDatasetLockMode(entityInfo, lockMode);
+                    entityInfoManager.increaseDatasetLockCount(entityInfo, waiterCount - 1);
+
+                    if (entityHashValue == -1) { //dataset-granule lock
+                        dLockInfo.increaseLockCount(LockMode.X, weakerModeLockCount + waiterCount - 1);//new lock mode
+                        dLockInfo.decreaseLockCount(LockMode.S, weakerModeLockCount);//current lock mode
+                    } else {
+                        dLockInfo.increaseLockCount(LockMode.IX, weakerModeLockCount + waiterCount - 1);
+                        dLockInfo.decreaseLockCount(LockMode.IS, weakerModeLockCount);
+                    }
+                }
+            } else { //duplicated call
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                datasetLockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+
+                if (entityHashValue == -1) { //dataset-granule
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                } else { //entity-granule
+                    datasetLockMode = datasetLockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                }
             }
         }
 
-        synchronized (context) {
-            context.setStatus(TransactionContext.ACTIVE_STATUS);
-            context.setStartWaitTime(TransactionContext.INVALID_TIME);
-        }
+        return entityInfo;
+    }
 
-        synchronized (lmTables) {
-            txrInfo = lmTables.getTxrInfo(txId);
-            if (txrInfo == null) {
-                throw new ACIDException("Transaction " + txId + " removed from Txr Table Unexpectedlly");
+    private void lockEntityGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
+            int entityInfoFromDLockInfo, TransactionContext txnContext) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int waiterObjId;
+        int eLockInfo = -1;
+        int entityInfo;
+        DatasetLockInfo dLockInfo;
+        JobInfo jobInfo;
+        boolean isUpgrade = false;
+        int waiterCount = 0;
+        int weakerModeLockCount;
+
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+        eLockInfo = dLockInfo.getEntityResourceHT().get(entityHashValue);
+
+        if (eLockInfo != -1) {
+            //check duplicated call
+
+            //1. lock request causing duplicated upgrading requests from different threads in a same job
+            waiterObjId = entityLockInfoManager.findUpgraderFromUpgraderList(eLockInfo, jId, entityHashValue);
+            if (waiterObjId != -1) {
+                entityInfo = lockWaiterManager.getLockWaiter(waiterObjId).getEntityInfoSlot();
+                waiterCount = handleLockWaiter(dLockInfo, eLockInfo, -1, true, false, txnContext, jobInfo, waiterObjId);
+
+                if (waiterCount > 0) {
+                    weakerModeLockCount = entityInfoManager.getEntityLockCount(entityInfo);
+                    entityInfoManager.setEntityLockMode(entityInfo, LockMode.X);
+                    entityInfoManager.increaseEntityLockCount(entityInfo, waiterCount - 1);
+
+                    entityLockInfoManager.increaseLockCount(eLockInfo, LockMode.X, (short) (weakerModeLockCount
+                            + waiterCount - 1));//new lock mode
+                    entityLockInfoManager.decreaseLockCount(eLockInfo, LockMode.S, (short) weakerModeLockCount);//old lock mode 
+                }
+                return;
             }
-            txrInfo.addGrantedLock(resourceID, mode);
-            txrInfo.setWaitOnRid(null);
-        }
 
-        return true; // Arriving here when Txr wakes up and it successfully
-                     // locks the resource
+            //2. lock request causing duplicated waiting requests from different threads in a same job
+            waiterObjId = entityLockInfoManager.findWaiterFromWaiterList(eLockInfo, jId, entityHashValue);
+            if (waiterObjId != -1) {
+                entityInfo = lockWaiterManager.getLockWaiter(waiterObjId).getEntityInfoSlot();
+                waiterCount = handleLockWaiter(dLockInfo, eLockInfo, -1, false, false, txnContext, jobInfo, waiterObjId);
+
+                if (waiterCount > 0) {
+                    entityInfoManager.increaseEntityLockCount(entityInfo, waiterCount);
+                    entityLockInfoManager.increaseLockCount(eLockInfo, lockMode, (short) waiterCount);
+                    entityLockInfoManager.addHolder(eLockInfo, entityInfo);
+                }
+                return;
+            }
+
+            //3. lock request causing duplicated holding requests from different threads or a single thread in a same job
+            entityInfo = entityLockInfoManager.findEntityInfoFromHolderList(eLockInfo, jId, entityHashValue);
+            if (entityInfo != -1) {//duplicated call or upgrader
+
+                isUpgrade = isLockUpgrade(entityInfoManager.getEntityLockMode(entityInfo), lockMode);
+                if (isUpgrade) {//upgrade call
+                    //wait if any upgrader exists or upgrading lock mode is not compatible
+                    if (entityLockInfoManager.getUpgrader(eLockInfo) != -1
+                            || !entityLockInfoManager.isUpgradeCompatible(eLockInfo, lockMode, entityInfo)) {
+                        waiterCount = handleLockWaiter(dLockInfo, eLockInfo, entityInfo, true, false, txnContext,
+                                jobInfo, -1);
+                    } else {
+                        waiterCount = 1;
+                    }
+
+                    if (waiterCount > 0) {
+                        weakerModeLockCount = entityInfoManager.getEntityLockCount(entityInfo);
+                        entityInfoManager.setEntityLockMode(entityInfo, lockMode);
+                        entityInfoManager.increaseEntityLockCount(entityInfo, waiterCount - 1);
+
+                        entityLockInfoManager.increaseLockCount(eLockInfo, LockMode.X, (short) (weakerModeLockCount
+                                + waiterCount - 1));//new lock mode
+                        entityLockInfoManager.decreaseLockCount(eLockInfo, LockMode.S, (short) weakerModeLockCount);//old lock mode 
+                    }
+
+                } else {//duplicated call
+                    entityInfoManager.increaseEntityLockCount(entityInfo);
+                    entityLockInfoManager.increaseLockCount(eLockInfo, entityInfoManager.getEntityLockMode(entityInfo));
+                }
+            } else {//new call from this job, but still eLockInfo exists since other threads hold it or wait on it
+                entityInfo = entityInfoFromDLockInfo;
+                if (entityLockInfoManager.getUpgrader(eLockInfo) != -1
+                        || entityLockInfoManager.getFirstWaiter(eLockInfo) != -1
+                        || !entityLockInfoManager.isCompatible(eLockInfo, lockMode)) {
+                    waiterCount = handleLockWaiter(dLockInfo, eLockInfo, entityInfo, false, false, txnContext, jobInfo,
+                            -1);
+                } else {
+                    waiterCount = 1;
+                }
+
+                if (waiterCount > 0) {
+                    entityInfoManager.increaseEntityLockCount(entityInfo, waiterCount);
+                    entityLockInfoManager.increaseLockCount(eLockInfo, lockMode, (short) waiterCount);
+                    entityLockInfoManager.addHolder(eLockInfo, entityInfo);
+                }
+            }
+        } else {//eLockInfo doesn't exist, so this lock request is the first request and can be granted without waiting.
+            eLockInfo = entityLockInfoManager.allocate();
+            dLockInfo.getEntityResourceHT().put(entityHashValue, eLockInfo);
+            entityInfoManager.increaseEntityLockCount(entityInfoFromDLockInfo);
+            entityLockInfoManager.increaseLockCount(eLockInfo, lockMode);
+            entityLockInfoManager.addHolder(eLockInfo, entityInfoFromDLockInfo);
+        }
     }
 
     @Override
-    public boolean convertLock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException {
-        long txId = context.getTransactionID();
-        int curMode = -1;
-        TxrInfo txrInfo = null;
-        LockInfo lInfo = null;
-        synchronized (lmTables) {
-            txrInfo = lmTables.getTxrInfo(txId);
-
-            if (txrInfo == null) {
-                throw new ACIDException("No lock is granted to the transaction, to convert");
-            }
-
-            TInfo tInfo = txrInfo.getTxrInfo(resourceID, LockInfo.ANY_LOCK_MODE, TxrInfo.NOT_KNOWN_IX);
-            if (tInfo == null) {
-                throw new ACIDException("No lock is granted to the transaction on the resource, to convert");
-            }
-
-            curMode = tInfo.getMode();
-            if (mode == curMode) { // Redundant
-                return true; // We do not increment the counter, because it is a
-                // conversion
-            }
-
-            if (!lMtx.isConversion(curMode, mode)) {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction " + txId + " already has grabbed a stronger mode (" + curMode + ") than "
-                            + mode);
-                }
-
-                return true;
-            }
-
-            lInfo = lmTables.getLockInfo(resourceID);
-            if (lInfo == null) {
-                throw new ACIDException("No lock on the resource, to convert");
-            }
-        }
-
-        try {
-            return convertLockForNewTransaction(context, resourceID, curMode, mode);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-
-        throw new ACIDException("Problem in Lock Converting for Transaction " + txId
-                + " (We unexpectedly returned from convert lock for new transaction)");
+    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext) throws ACIDException {
+        internalUnlock(datasetId, entityHashValue, txnContext, false);
     }
 
-    private boolean convertLockForNewTransaction(TransactionContext context, byte[] resourceId, int curMode, int reqMode)
-            throws ACIDException, InterruptedException {
-        long txId = context.getTransactionID();
-        WaitEntry waitObj = null;
-        boolean shouldAbort = false;
-        TxrInfo txrInfo = null;
-        synchronized (lmTables) {
-            LockInfo lInfo = lmTables.getLockInfo(resourceId);
-            txrInfo = lmTables.getTxrInfo(txId);
-            // ---Check if the conversion is already done---
-            int eix = lInfo.findInGrantedList(txId, reqMode);
-            if (eix != LockInfo.NOT_FOUND) {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Conversion already done for Transaction " + txId + " for lock " + reqMode
-                            + " on resource ");
-                }
-                return true;
-            }
-            // --------------------------------------------
+    @Override
+    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext, boolean commitFlag)
+            throws ACIDException {
+        internalUnlock(datasetId, entityHashValue, txnContext, commitFlag);
+    }
 
-            int updatedMask = lInfo.getUpdatedMask(txId, curMode, LockInfo.UNKNOWN_IX);
-            if (lMtx.conflicts(updatedMask, reqMode)) { // if Conflicting, Txr
-                                                        // needs to wait
+    private void internalUnlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext,
+            boolean commitFlag) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int eLockInfo = -1;
+        DatasetLockInfo dLockInfo = null;
+        JobInfo jobInfo;
+        int entityInfo = -1;
+        byte datasetLockMode;
 
-                // ---- Deadlock Detection ---
-                if (!isDeadlockFree(txId, resourceId)) {
-                    if (LOGGER.isLoggable(Level.INFO)) {
-                        LOGGER.info("DEADLOCK DETECTED IN CONVERSION FOR TRANSACTION ");
-                    }
-                    context.setStatus(TransactionContext.TIMED_OUT_SATUS);
-                    shouldAbort = true;
-                }
-                // ---------------------------
-
-                else {
-                    waitObj = woManager.allocate();
-                    if (waitObj == null) {
-                        throw new ACIDException("Invalid (null) object allocated as the WaitEntry for Txr " + txId);
-                    }
-                    lInfo.addToConvert(txId, reqMode, waitObj);
-                    txrInfo.setWaitOnRid(resourceId);
-                    context.setStartWaitTime(System.currentTimeMillis());
-                }
-            }
-
-            else { // no conflicts, grant it
-                lInfo.removeFromGranted(txId, curMode, LockInfo.UNKNOWN_IX);
-                lInfo.addToGranted(txId, reqMode, LockInfo.NOT_FOUND);
-                txrInfo.removeLock(resourceId, curMode, TxrInfo.NOT_KNOWN_IX);
-                txrInfo.addGrantedLock(resourceId, reqMode);
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction " + txId + " could convert to " + reqMode + " lock on resource ");
-                }
-                return true;
+        if (IS_DEBUG_MODE) {
+            if (entityHashValue == -1) {
+                throw new UnsupportedOperationException(
+                        "Unsupported unlock request: dataset-granule unlock is not supported");
             }
         }
 
-        if (shouldAbort) {
-            requestTxrAbort(context);
-            return false;
+        latchLockTable();
+        validateJob(txnContext);
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Requested", RequestType.UNLOCK, datasetId, entityHashValue, (byte) 0, txnContext,
+                    dLockInfo, eLockInfo);
         }
 
-        // Txr needs to wait, and it is safe
-        synchronized (waitObj) {
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("Transaction " + txId + " needs to wait for convert " + reqMode);
-            }
-            while (waitObj.needWait()) {
+        //find the resource to be unlocked
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+        if (dLockInfo == null || jobInfo == null) {
+            unlatchLockTable();
+            throw new IllegalStateException("Invalid unlock request: Corresponding lock info doesn't exist.");
+        }
 
-                waitObj.wait();
-            }
+        eLockInfo = dLockInfo.getEntityResourceHT().get(entityHashValue);
 
-            if (context.getStatus() == TransactionContext.TIMED_OUT_SATUS) { // selected
-                // as
-                // a
-                // victim
-                requestTxrAbort(context);
-                woManager.deAllocate(waitObj);
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction " + txId + " wakes up and victimied for convert " + reqMode);
+        if (eLockInfo == -1) {
+            unlatchLockTable();
+            throw new IllegalStateException("Invalid unlock request: Corresponding lock info doesn't exist.");
+        }
+
+        //find the corresponding entityInfo
+        entityInfo = entityLockInfoManager.findEntityInfoFromHolderList(eLockInfo, jobId.getId(), entityHashValue);
+        if (entityInfo == -1) {
+            unlatchLockTable();
+            throw new IllegalStateException("Invalid unlock request[" + jobId.getId() + "," + datasetId.getId() + ","
+                    + entityHashValue + "]: Corresponding lock info doesn't exist.");
+        }
+
+        datasetLockMode = entityInfoManager.getDatasetLockMode(entityInfo) == LockMode.S ? LockMode.IS : LockMode.IX;
+
+        //decrease the corresponding count of dLockInfo/eLockInfo/entityInfo
+        dLockInfo.decreaseLockCount(datasetLockMode);
+        entityLockInfoManager.decreaseLockCount(eLockInfo, entityInfoManager.getEntityLockMode(entityInfo));
+        entityInfoManager.decreaseDatasetLockCount(entityInfo);
+        entityInfoManager.decreaseEntityLockCount(entityInfo);
+
+        if (entityInfoManager.getEntityLockCount(entityInfo) == 0
+                && entityInfoManager.getDatasetLockCount(entityInfo) == 0) {
+            int threadCount = 0; //number of threads(in the same job) waiting on the same resource 
+            int waiterObjId = jobInfo.getFirstWaitingResource();
+            int waitingEntityInfo;
+            LockWaiter waiterObj;
+
+            //TODO
+            //This code should be taken care properly when there is a way to avoid doubling memory space for txnIds.
+            //This commit log is written here in order to avoid increasing the memory space for managing transactionIds
+            if (commitFlag) {
+                if (txnContext.getTransactionType().equals(TransactionContext.TransactionType.READ_WRITE)) {
+                    try {
+                        txnSubsystem.getLogManager().log(LogType.ENTITY_COMMIT, txnContext, datasetId.getId(),
+                                entityHashValue, -1, (byte) 0, 0, null, null, logicalLogLocator);
+                    } catch (ACIDException e) {
+                        try {
+                            requestAbort(txnContext);
+                        } finally {
+                            unlatchLockTable();
+                        }
+                    }
                 }
+
+                txnContext.updateLastLSNForIndexes(logicalLogLocator.getLsn());
+            }
+
+            //1) wake up waiters and remove holder
+            //wake up waiters of dataset-granule lock
+            wakeUpDatasetLockWaiters(dLockInfo);
+            //wake up waiters of entity-granule lock
+            wakeUpEntityLockWaiters(eLockInfo);
+            //remove the holder from eLockInfo's holder list and remove the holding resource from jobInfo's holding resource list
+            //this can be done in the following single function call.
+            entityLockInfoManager.removeHolder(eLockInfo, entityInfo, jobInfo);
+
+            //2) if 
+            //      there is no waiting thread on the same resource (this can be checked through jobInfo)
+            //   then 
+            //      a) delete the corresponding entityInfo
+            //      b) write commit log for the unlocked resource(which is a committed txn).
+            while (waiterObjId != -1) {
+                waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+                waitingEntityInfo = waiterObj.getEntityInfoSlot();
+                if (entityInfoManager.getDatasetId(waitingEntityInfo) == datasetId.getId()
+                        && entityInfoManager.getPKHashVal(waitingEntityInfo) == entityHashValue) {
+                    threadCount++;
+                    break;
+                }
+                waiterObjId = waiterObj.getNextWaiterObjId();
+            }
+            if (threadCount == 0) {
+                if (entityInfoManager.getEntityLockMode(entityInfo) == LockMode.X) {
+                    //TODO
+                    //write a commit log for the unlocked resource
+                    //need to figure out that instantLock() also needs to write a commit log. 
+                }
+                entityInfoManager.deallocate(entityInfo);
+            }
+        }
+
+        //deallocate entityLockInfo's slot if there is no txn referring to the entityLockInfo.
+        if (entityLockInfoManager.getFirstWaiter(eLockInfo) == -1
+                && entityLockInfoManager.getLastHolder(eLockInfo) == -1
+                && entityLockInfoManager.getUpgrader(eLockInfo) == -1) {
+            dLockInfo.getEntityResourceHT().remove(entityHashValue);
+            entityLockInfoManager.deallocate(eLockInfo);
+        }
+
+        //we don't deallocate datasetLockInfo even if there is no txn referring to the datasetLockInfo
+        //since the datasetLockInfo is likely to be referred to again.
+
+        if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            if (datasetLockMode == LockMode.IS) {
+                jobInfo.decreaseDatasetISLockCount(datasetId.getId());
+            }
+        }
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Granted", RequestType.UNLOCK, datasetId, entityHashValue, (byte) 0, txnContext,
+                    dLockInfo, eLockInfo);
+        }
+        unlatchLockTable();
+    }
+
+    @Override
+    public void releaseLocks(TransactionContext txnContext) throws ACIDException {
+        LockWaiter waiterObj;
+        int entityInfo;
+        int prevEntityInfo;
+        int entityHashValue;
+        DatasetLockInfo dLockInfo = null;
+        int eLockInfo = -1;
+        int did;//int-type dataset id
+        int datasetLockCount;
+        int entityLockCount;
+        byte lockMode;
+        boolean existWaiter = false;
+
+        JobId jobId = txnContext.getJobId();
+
+        latchLockTable();
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Requested", RequestType.RELEASE_LOCKS, new DatasetId(0), 0, (byte) 0, txnContext,
+                    dLockInfo, eLockInfo);
+        }
+
+        JobInfo jobInfo = jobHT.get(jobId);
+        if (jobInfo == null) {
+            unlatchLockTable();
+            return;
+        }
+
+        //remove waiterObj of JobInfo 
+        //[Notice]
+        //waiterObjs may exist if aborted thread is the caller of this function.
+        //Even if there are the waiterObjs, there is no waiting thread on the objects. 
+        //If the caller of this function is an aborted thread, it is guaranteed that there is no waiting threads
+        //on the waiterObjs since when the aborted caller thread is waken up, all other waiting threads are
+        //also waken up at the same time through 'notifyAll()' call.
+        //In contrast, if the caller of this function is not an aborted thread, then there is no waiting object.
+        int waiterObjId = jobInfo.getFirstWaitingResource();
+        int nextWaiterObjId;
+        while (waiterObjId != -1) {
+            existWaiter = true;
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            nextWaiterObjId = waiterObj.getNextWaitingResourceObjId();
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (IS_DEBUG_MODE) {
+                if (jobId.getId() != entityInfoManager.getJobId(entityInfo)) {
+                    throw new IllegalStateException("JobInfo(" + jobId + ") has diffrent Job(JID:"
+                            + entityInfoManager.getJobId(entityInfo) + "'s lock request!!!");
+                }
+            }
+
+            //1. remove from waiter(or upgrader)'s list of dLockInfo or eLockInfo.
+            did = entityInfoManager.getDatasetId(entityInfo);
+            tempDatasetIdObj.setId(did);
+            dLockInfo = datasetResourceHT.get(tempDatasetIdObj);
+
+            if (waiterObj.isWaitingOnEntityLock()) {
+                entityHashValue = entityInfoManager.getPKHashVal(entityInfo);
+                eLockInfo = dLockInfo.getEntityResourceHT().get(entityHashValue);
+                if (waiterObj.isWaiter()) {
+                    entityLockInfoManager.removeWaiter(eLockInfo, waiterObjId);
+                } else {
+                    entityLockInfoManager.removeUpgrader(eLockInfo, waiterObjId);
+                }
+            } else {
+                if (waiterObj.isWaiter()) {
+                    dLockInfo.removeWaiter(waiterObjId);
+                } else {
+                    dLockInfo.removeUpgrader(waiterObjId);
+                }
+            }
+
+            //2. wake-up waiters
+            latchWaitNotify();
+            synchronized (waiterObj) {
+                unlatchWaitNotify();
+                waiterObj.setWait(false);
+                if (IS_DEBUG_MODE) {
+                    System.out.println("" + Thread.currentThread().getName() + "\twake-up(D): WID(" + waiterObjId
+                            + "),EID(" + waiterObj.getEntityInfoSlot() + ")");
+                }
+                waiterObj.notifyAll();
+            }
+
+            //3. deallocate waiterObj
+            lockWaiterManager.deallocate(waiterObjId);
+
+            //4. deallocate entityInfo only if this waiter is not an upgrader
+            if (entityInfoManager.getDatasetLockCount(entityInfo) == 0
+                    && entityInfoManager.getEntityLockCount(entityInfo) == 0) {
+                entityInfoManager.deallocate(entityInfo);
+            }
+            waiterObjId = nextWaiterObjId;
+        }
+
+        //release holding resources
+        entityInfo = jobInfo.getLastHoldingResource();
+        while (entityInfo != -1) {
+            prevEntityInfo = entityInfoManager.getPrevJobResource(entityInfo);
+
+            //decrease lock count of datasetLock and entityLock
+            did = entityInfoManager.getDatasetId(entityInfo);
+            tempDatasetIdObj.setId(did);
+            dLockInfo = datasetResourceHT.get(tempDatasetIdObj);
+            entityHashValue = entityInfoManager.getPKHashVal(entityInfo);
+
+            if (entityHashValue == -1) {
+                //decrease datasetLockCount
+                lockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+                datasetLockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+                if (datasetLockCount != 0) {
+                    dLockInfo.decreaseLockCount(lockMode, datasetLockCount);
+
+                    //wakeup waiters of datasetLock and remove holder from datasetLockInfo
+                    wakeUpDatasetLockWaiters(dLockInfo);
+
+                    //remove the holder from datasetLockInfo only if the lock is dataset-granule lock.
+                    //--> this also removes the holding resource from jobInfo               
+                    //(Because the IX and IS lock's holders are handled implicitly, 
+                    //those are not in the holder list of datasetLockInfo.)
+                    dLockInfo.removeHolder(entityInfo, jobInfo);
+                }
+            } else {
+                //decrease datasetLockCount
+                lockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+                lockMode = lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+                datasetLockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+
+                if (datasetLockCount != 0) {
+                    dLockInfo.decreaseLockCount(lockMode, datasetLockCount);
+                }
+
+                //decrease entityLockCount
+                lockMode = entityInfoManager.getEntityLockMode(entityInfo);
+                entityLockCount = entityInfoManager.getEntityLockCount(entityInfo);
+                eLockInfo = dLockInfo.getEntityResourceHT().get(entityHashValue);
+                if (IS_DEBUG_MODE) {
+                    if (eLockInfo < 0) {
+                        System.out.println("eLockInfo:" + eLockInfo);
+                    }
+                }
+
+                if (entityLockCount != 0) {
+                    entityLockInfoManager.decreaseLockCount(eLockInfo, lockMode, (short) entityLockCount);
+                }
+
+                if (datasetLockCount != 0) {
+                    //wakeup waiters of datasetLock and don't remove holder from datasetLockInfo
+                    wakeUpDatasetLockWaiters(dLockInfo);
+                }
+
+                if (entityLockCount != 0) {
+                    //wakeup waiters of entityLock
+                    wakeUpEntityLockWaiters(eLockInfo);
+
+                    //remove the holder from entityLockInfo 
+                    //--> this also removes the holding resource from jobInfo
+                    entityLockInfoManager.removeHolder(eLockInfo, entityInfo, jobInfo);
+                }
+
+                //deallocate entityLockInfo if there is no holder and waiter.
+                if (entityLockInfoManager.getLastHolder(eLockInfo) == -1
+                        && entityLockInfoManager.getFirstWaiter(eLockInfo) == -1
+                        && entityLockInfoManager.getUpgrader(eLockInfo) == -1) {
+                    dLockInfo.getEntityResourceHT().remove(entityHashValue);
+                    entityLockInfoManager.deallocate(eLockInfo);
+                    //                    if (IS_DEBUG_MODE) {
+                    //                        System.out.println("removed PK["+entityHashValue+"]");
+                    //                    }
+                }
+            }
+
+            //deallocate entityInfo
+            entityInfoManager.deallocate(entityInfo);
+            //            if (IS_DEBUG_MODE) {
+            //                System.out.println("dellocate EntityInfo["+entityInfo+"]");
+            //            }
+
+            entityInfo = prevEntityInfo;
+        }
+
+        //remove JobInfo
+        jobHT.remove(jobId);
+
+        if (existWaiter) {
+            txnContext.setStatus(TransactionContext.TIMED_OUT_STATUS);
+            txnContext.setTxnState(TransactionState.ABORTED);
+        }
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Granted", RequestType.RELEASE_LOCKS, new DatasetId(0), 0, (byte) 0, txnContext,
+                    dLockInfo, eLockInfo);
+        }
+        unlatchLockTable();
+    }
+
+    @Override
+    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException {
+
+        //        try {
+        //            internalLock(datasetId, entityHashValue, lockMode, txnContext);
+        //            return;
+        //        } finally {
+        //            unlock(datasetId, entityHashValue, txnContext);
+        //        }
+        internalLock(datasetId, entityHashValue, lockMode, txnContext);
+        unlock(datasetId, entityHashValue, txnContext);
+    }
+
+    @Override
+    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException {
+        return internalTryLock(datasetId, entityHashValue, lockMode, txnContext);
+    }
+
+    @Override
+    public boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+            throws ACIDException {
+        boolean isGranted = false;
+        //        try {
+        //            isGranted = internalTryLock(datasetId, entityHashValue, lockMode, txnContext);
+        //            return isGranted;
+        //        } finally {
+        //            if (isGranted) {
+        //                unlock(datasetId, entityHashValue, txnContext);
+        //            }
+        //        }
+        isGranted = internalTryLock(datasetId, entityHashValue, lockMode, txnContext);
+        if (isGranted) {
+            unlock(datasetId, entityHashValue, txnContext);
+        }
+        return isGranted;
+    }
+
+    private boolean internalTryLock(DatasetId datasetId, int entityHashValue, byte lockMode,
+            TransactionContext txnContext) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int dId = datasetId.getId(); //int-type datasetId
+        int entityInfo;
+        int eLockInfo = -1;
+        DatasetLockInfo dLockInfo = null;
+        JobInfo jobInfo;
+        byte datasetLockMode = entityHashValue == -1 ? lockMode : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+        boolean isSuccess = false;
+        boolean isEscalated = false;
+
+        latchLockTable();
+        validateJob(txnContext);
+
+        if (IS_DEBUG_MODE) {
+            trackLockRequest("Requested", RequestType.TRY_LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                    dLockInfo, eLockInfo);
+        }
+
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+
+        if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            if (datasetLockMode == LockMode.IS && jobInfo != null && dLockInfo != null) {
+                int upgradeStatus = needUpgradeFromEntityToDataset(jobInfo, dId, lockMode);
+                switch (upgradeStatus) {
+                    case DO_ESCALATE:
+                        entityHashValue = -1;
+                        isEscalated = true;
+                        break;
+
+                    case ESCALATED:
+                        unlatchLockTable();
+                        return true;
+
+                    default:
+                        break;
+                }
+            }
+        }
+
+        //#. if the datasetLockInfo doesn't exist in datasetResourceHT 
+        if (dLockInfo == null || dLockInfo.isNoHolder()) {
+            if (dLockInfo == null) {
+                dLockInfo = new DatasetLockInfo(entityLockInfoManager, entityInfoManager, lockWaiterManager);
+                datasetResourceHT.put(new DatasetId(dId), dLockInfo); //datsetId obj should be created
+            }
+            entityInfo = entityInfoManager.allocate(jId, dId, entityHashValue, lockMode);
+
+            //if dataset-granule lock
+            if (entityHashValue == -1) { //-1 stands for dataset-granule
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                dLockInfo.increaseLockCount(datasetLockMode);
+                dLockInfo.addHolder(entityInfo);
+            } else {
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                dLockInfo.increaseLockCount(datasetLockMode);
+                //add entityLockInfo
+                eLockInfo = entityLockInfoManager.allocate();
+                dLockInfo.getEntityResourceHT().put(entityHashValue, eLockInfo);
+                entityInfoManager.increaseEntityLockCount(entityInfo);
+                entityLockInfoManager.increaseLockCount(eLockInfo, lockMode);
+                entityLockInfoManager.addHolder(eLockInfo, entityInfo);
+            }
+
+            if (jobInfo == null) {
+                jobInfo = new JobInfo(entityInfoManager, lockWaiterManager, txnContext);
+                jobHT.put(jobId, jobInfo); //jobId obj doesn't have to be created
+            }
+            jobInfo.addHoldingResource(entityInfo);
+
+            if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+                if (datasetLockMode == LockMode.IS) {
+                    jobInfo.increaseDatasetISLockCount(dId);
+                }
+            }
+
+            if (IS_DEBUG_MODE) {
+                trackLockRequest("Granted", RequestType.TRY_LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                        dLockInfo, eLockInfo);
+            }
+
+            unlatchLockTable();
+            return true;
+        }
+
+        //#. the datasetLockInfo exists in datasetResourceHT.
+        //1. handle dataset-granule lock
+        tryLockDatasetGranuleRevertOperation = 0;
+        entityInfo = tryLockDatasetGranule(datasetId, entityHashValue, lockMode, txnContext);
+        if (entityInfo == -2) {//-2 represents fail
+            isSuccess = false;
+        } else {
+            //2. handle entity-granule lock
+            if (entityHashValue != -1) {
+                isSuccess = tryLockEntityGranule(datasetId, entityHashValue, lockMode, entityInfo, txnContext);
+                if (!isSuccess) {
+                    revertTryLockDatasetGranuleOperation(datasetId, entityHashValue, lockMode, entityInfo, txnContext);
+                }
+            }
+        }
+
+        if (ALLOW_ESCALATE_FROM_ENTITY_TO_DATASET) {
+            if (isEscalated) {
+                releaseDatasetISLocks(jobInfo, jobId, datasetId, txnContext);
+            }
+            if (jobInfo != null && datasetLockMode == LockMode.IS) {
+                jobInfo.increaseDatasetISLockCount(dId);
+            }
+        }
+
+        if (IS_DEBUG_MODE) {
+            if (isSuccess) {
+                trackLockRequest("Granted", RequestType.TRY_LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                        dLockInfo, eLockInfo);
+            } else {
+                trackLockRequest("Failed", RequestType.TRY_LOCK, datasetId, entityHashValue, lockMode, txnContext,
+                        dLockInfo, eLockInfo);
+            }
+        }
+
+        unlatchLockTable();
+
+        return isSuccess;
+    }
+
+    private void trackLockRequest(String msg, int requestType, DatasetId datasetIdObj, int entityHashValue,
+            byte lockMode, TransactionContext txnContext, DatasetLockInfo dLockInfo, int eLockInfo) {
+        StringBuilder s = new StringBuilder();
+        LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, datasetIdObj,
+                entityHashValue, lockMode, txnContext);
+        s.append(Thread.currentThread().getId() + ":");
+        s.append(msg);
+        if (msg.equals("Granted")) {
+            if (dLockInfo != null) {
+                s.append("\t|D| ");
+                s.append(dLockInfo.getIXCount()).append(",");
+                s.append(dLockInfo.getISCount()).append(",");
+                s.append(dLockInfo.getXCount()).append(",");
+                s.append(dLockInfo.getSCount()).append(",");
+                if (dLockInfo.getFirstUpgrader() != -1) {
+                    s.append("+");
+                } else {
+                    s.append("-");
+                }
+                s.append(",");
+                if (dLockInfo.getFirstWaiter() != -1) {
+                    s.append("+");
+                } else {
+                    s.append("-");
+                }
+            }
+
+            if (eLockInfo != -1) {
+                s.append("\t|E| ");
+                s.append(entityLockInfoManager.getXCount(eLockInfo)).append(",");
+                s.append(entityLockInfoManager.getSCount(eLockInfo)).append(",");
+                if (entityLockInfoManager.getUpgrader(eLockInfo) != -1) {
+                    s.append("+");
+                } else {
+                    s.append("-");
+                }
+                s.append(",");
+                if (entityLockInfoManager.getFirstWaiter(eLockInfo) != -1) {
+                    s.append("+");
+                } else {
+                    s.append("-");
+                }
+            }
+        }
+
+        lockRequestTracker.addEvent(s.toString(), request);
+        if (msg.equals("Requested")) {
+            lockRequestTracker.addRequest(request);
+        }
+        System.out.println(request.prettyPrint() + "--> " + s.toString());
+    }
+
+    public String getHistoryForAllJobs() {
+        if (IS_DEBUG_MODE) {
+            return lockRequestTracker.getHistoryForAllJobs();
+        }
+        return null;
+    }
+
+    public String getHistoryPerJob() {
+        if (IS_DEBUG_MODE) {
+            return lockRequestTracker.getHistoryPerJob();
+        }
+        return null;
+    }
+
+    public String getRequestHistoryForAllJobs() {
+        if (IS_DEBUG_MODE) {
+            return lockRequestTracker.getRequestHistoryForAllJobs();
+        }
+        return null;
+    }
+
+    private void revertTryLockDatasetGranuleOperation(DatasetId datasetId, int entityHashValue, byte lockMode,
+            int entityInfo, TransactionContext txnContext) {
+        JobId jobId = txnContext.getJobId();
+        DatasetLockInfo dLockInfo;
+        JobInfo jobInfo;
+        int lockCount;
+        byte datasetLockMode = entityHashValue == -1 ? lockMode : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+
+        //see tryLockDatasetGranule() function to know the revert operation
+        switch (tryLockDatasetGranuleRevertOperation) {
+
+            case 1://[revertOperation1]: reverting 'adding a holder'
+
+                if (entityHashValue == -1) {
+                    dLockInfo.decreaseLockCount(datasetLockMode);
+                    dLockInfo.removeHolder(entityInfo, jobInfo); //--> this call removes entityInfo from JobInfo's holding-resource-list as well.
+                } else {
+                    dLockInfo.decreaseLockCount(datasetLockMode);
+                    jobInfo.removeHoldingResource(entityInfo);
+                }
+                entityInfoManager.decreaseDatasetLockCount(entityInfo);
+                if (jobInfo.getLastHoldingResource() == -1 && jobInfo.getFirstWaitingResource() == -1) {
+                    jobHT.remove(jobId);
+                }
+                entityInfoManager.deallocate(entityInfo);
+                break;
+
+            case 2://[revertOperation2]: reverting 'adding an upgrader'
+                lockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+                if (entityHashValue == -1) { //dataset-granule lock
+                    dLockInfo.decreaseLockCount(LockMode.X, lockCount);
+                    dLockInfo.increaseLockCount(LockMode.S, lockCount);
+                } else {
+                    dLockInfo.decreaseLockCount(LockMode.IX, lockCount);
+                    dLockInfo.increaseLockCount(LockMode.IS, lockCount);
+                }
+                entityInfoManager.setDatasetLockMode(entityInfo, LockMode.S);
+                break;
+
+            case 3://[revertOperation3]: reverting 'adding a duplicated call'
+                entityInfoManager.decreaseDatasetLockCount(entityInfo);
+                datasetLockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+                if (entityHashValue == -1) { //dataset-granule
+                    dLockInfo.decreaseLockCount(datasetLockMode);
+                } else { //entity-granule
+                    datasetLockMode = datasetLockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+                    dLockInfo.decreaseLockCount(datasetLockMode);
+                }
+
+                break;
+            default:
+                //do nothing;
+        }
+    }
+
+    private int tryLockDatasetGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
+            TransactionContext txnContext) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int dId = datasetId.getId(); //int-type datasetId
+        int waiterObjId;
+        int entityInfo = -1;
+        DatasetLockInfo dLockInfo;
+        JobInfo jobInfo;
+        boolean isUpgrade = false;
+        int weakerModeLockCount;
+        byte datasetLockMode = entityHashValue == -1 ? lockMode : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+
+        dLockInfo = datasetResourceHT.get(datasetId);
+        jobInfo = jobHT.get(jobId);
+
+        //check duplicated call
+
+        //1. lock request causing duplicated upgrading requests from different threads in a same job
+        waiterObjId = dLockInfo.findUpgraderFromUpgraderList(jId, entityHashValue);
+        if (waiterObjId != -1) {
+            return -2;
+        }
+
+        //2. lock request causing duplicated waiting requests from different threads in a same job
+        waiterObjId = dLockInfo.findWaiterFromWaiterList(jId, entityHashValue);
+        if (waiterObjId != -1) {
+            return -2;
+        }
+
+        //3. lock request causing duplicated holding requests from different threads or a single thread in a same job
+        entityInfo = dLockInfo.findEntityInfoFromHolderList(jId, entityHashValue);
+        if (entityInfo == -1) { //new call from this job -> doesn't mean that eLockInfo doesn't exist since another thread might have create the eLockInfo already.
+
+            //////////////////////////////////////////////////////////////////////////////////////
+            //[part of revertOperation1]
+            entityInfo = entityInfoManager.allocate(jId, dId, entityHashValue, lockMode);
+            if (jobInfo == null) {
+                jobInfo = new JobInfo(entityInfoManager, lockWaiterManager, txnContext);
+                jobHT.put(jobId, jobInfo);
+            }
+            //////////////////////////////////////////////////////////////////////////////////////
+
+            //return fail if any upgrader exists or upgrading lock mode is not compatible
+            if (dLockInfo.getFirstUpgrader() != -1 || dLockInfo.getFirstWaiter() != -1
+                    || !dLockInfo.isCompatible(datasetLockMode)) {
+
+                //[Notice]
+                //There has been no same caller as (jId, dId, entityHashValue) triplet.
+                //But there could be the same caller as (jId, dId) pair.
+                //For example, two requests (J1, D1, E1) and (J1, D1, E2) are considered as duplicated call in dataset-granule perspective.
+                //Therefore, the above duplicated call case is covered in the following code.
+                //find the same dataset-granule lock request, that is, (J1, D1) pair in the above example.
+                if (jobInfo.isDatasetLockGranted(dId, LockMode.IS)) {
+                    if (dLockInfo.isCompatible(datasetLockMode)) {
+                        //this is duplicated call
+                        entityInfoManager.increaseDatasetLockCount(entityInfo);
+                        if (entityHashValue == -1) {
+                            dLockInfo.increaseLockCount(datasetLockMode);
+                            dLockInfo.addHolder(entityInfo);
+                        } else {
+                            dLockInfo.increaseLockCount(datasetLockMode);
+                            //IS and IX holders are implicitly handled.
+                        }
+                        //add entityInfo to JobInfo's holding-resource list
+                        jobInfo.addHoldingResource(entityInfo);
+
+                        tryLockDatasetGranuleRevertOperation = 1;
+
+                        return entityInfo;
+                    }
+                }
+
+                //revert [part of revertOperation1] before return
+                if (jobInfo.getLastHoldingResource() == -1 && jobInfo.getFirstWaitingResource() == -1) {
+                    jobHT.remove(jobId);
+                }
+                entityInfoManager.deallocate(entityInfo);
+
+                return -2;
+            }
+
+            //////////////////////////////////////////////////////////////////////////////////////
+            //revert the following operations if the caller thread has to wait during this call.
+            //[revertOperation1]
+            entityInfoManager.increaseDatasetLockCount(entityInfo);
+            if (entityHashValue == -1) {
+                dLockInfo.increaseLockCount(datasetLockMode);
+                dLockInfo.addHolder(entityInfo);
+            } else {
+                dLockInfo.increaseLockCount(datasetLockMode);
+                //IS and IX holders are implicitly handled.
+            }
+            //add entityInfo to JobInfo's holding-resource list
+            jobInfo.addHoldingResource(entityInfo);
+
+            //set revert operation to be reverted when tryLock() fails
+            tryLockDatasetGranuleRevertOperation = 1;
+            //////////////////////////////////////////////////////////////////////////////////////
+
+        } else {
+            isUpgrade = isLockUpgrade(entityInfoManager.getDatasetLockMode(entityInfo), lockMode);
+            if (isUpgrade) { //upgrade call 
+                //return fail if any upgrader exists or upgrading lock mode is not compatible
+                if (dLockInfo.getFirstUpgrader() != -1 || !dLockInfo.isUpgradeCompatible(datasetLockMode, entityInfo)) {
+                    return -2;
+                }
+
+                //update entityInfo's dataset lock count and datasetLockInfo's lock count
+                weakerModeLockCount = entityInfoManager.getDatasetLockCount(entityInfo);
+
+                //////////////////////////////////////////////////////////////////////////////////////
+                //revert the following operations if the caller thread has to wait during this call.
+                //[revertOperation2]
+                entityInfoManager.setDatasetLockMode(entityInfo, lockMode);
+
+                if (entityHashValue == -1) { //dataset-granule lock
+                    dLockInfo.increaseLockCount(LockMode.X, weakerModeLockCount);//new lock mode
+                    dLockInfo.decreaseLockCount(LockMode.S, weakerModeLockCount);//current lock mode
+                } else {
+                    dLockInfo.increaseLockCount(LockMode.IX, weakerModeLockCount);
+                    dLockInfo.decreaseLockCount(LockMode.IS, weakerModeLockCount);
+                }
+                tryLockDatasetGranuleRevertOperation = 2;
+                //////////////////////////////////////////////////////////////////////////////////////
+
+            } else { //duplicated call
+
+                //////////////////////////////////////////////////////////////////////////////////////
+                //revert the following operations if the caller thread has to wait during this call.
+                //[revertOperation3]
+                entityInfoManager.increaseDatasetLockCount(entityInfo);
+                datasetLockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+
+                if (entityHashValue == -1) { //dataset-granule
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                } else { //entity-granule
+                    datasetLockMode = datasetLockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+                    dLockInfo.increaseLockCount(datasetLockMode);
+                }
+
+                tryLockDatasetGranuleRevertOperation = 3;
+                //////////////////////////////////////////////////////////////////////////////////////
+
+            }
+        }
+
+        return entityInfo;
+    }
+
+    private boolean tryLockEntityGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
+            int entityInfoFromDLockInfo, TransactionContext txnContext) throws ACIDException {
+        JobId jobId = txnContext.getJobId();
+        int jId = jobId.getId(); //int-type jobId
+        int waiterObjId;
+        int eLockInfo = -1;
+        int entityInfo;
+        DatasetLockInfo dLockInfo;
+        boolean isUpgrade = false;
+        int weakerModeLockCount;
+
+        dLockInfo = datasetResourceHT.get(datasetId);
+        eLockInfo = dLockInfo.getEntityResourceHT().get(entityHashValue);
+
+        if (eLockInfo != -1) {
+            //check duplicated call
+
+            //1. lock request causing duplicated upgrading requests from different threads in a same job
+            waiterObjId = entityLockInfoManager.findUpgraderFromUpgraderList(eLockInfo, jId, entityHashValue);
+            if (waiterObjId != -1) {
                 return false;
             }
-        }
 
-        synchronized (context) {
-            context.setStatus(TransactionContext.ACTIVE_STATUS);
-            context.setStartWaitTime(TransactionContext.INVALID_TIME);
-        }
-
-        synchronized (lmTables) {
-            txrInfo = lmTables.getTxrInfo(txId);
-            if (txrInfo == null) {
-                throw new ACIDException("Transaction " + txId + " removed from Txr Table Unexpectedlly");
+            //2. lock request causing duplicated waiting requests from different threads in a same job
+            waiterObjId = entityLockInfoManager.findWaiterFromWaiterList(eLockInfo, jId, entityHashValue);
+            if (waiterObjId != -1) {
+                return false;
             }
-            txrInfo.removeLock(resourceId, curMode, TxrInfo.NOT_KNOWN_IX);
-            txrInfo.addGrantedLock(resourceId, reqMode);
-            txrInfo.setWaitOnRid(null);
+
+            //3. lock request causing duplicated holding requests from different threads or a single thread in a same job
+            entityInfo = entityLockInfoManager.findEntityInfoFromHolderList(eLockInfo, jId, entityHashValue);
+            if (entityInfo != -1) {//duplicated call or upgrader
+
+                isUpgrade = isLockUpgrade(entityInfoManager.getEntityLockMode(entityInfo), lockMode);
+                if (isUpgrade) {//upgrade call
+                    //wait if any upgrader exists or upgrading lock mode is not compatible
+                    if (entityLockInfoManager.getUpgrader(eLockInfo) != -1
+                            || !entityLockInfoManager.isUpgradeCompatible(eLockInfo, lockMode, entityInfo)) {
+                        return false;
+                    }
+
+                    weakerModeLockCount = entityInfoManager.getEntityLockCount(entityInfo);
+                    entityInfoManager.setEntityLockMode(entityInfo, lockMode);
+
+                    entityLockInfoManager.increaseLockCount(eLockInfo, LockMode.X, (short) weakerModeLockCount);//new lock mode
+                    entityLockInfoManager.decreaseLockCount(eLockInfo, LockMode.S, (short) weakerModeLockCount);//old lock mode
+
+                } else {//duplicated call
+                    entityInfoManager.increaseEntityLockCount(entityInfo);
+                    entityLockInfoManager.increaseLockCount(eLockInfo, entityInfoManager.getEntityLockMode(entityInfo));
+                }
+            } else {//new call from this job, but still eLockInfo exists since other threads hold it or wait on it
+                entityInfo = entityInfoFromDLockInfo;
+                if (entityLockInfoManager.getUpgrader(eLockInfo) != -1
+                        || entityLockInfoManager.getFirstWaiter(eLockInfo) != -1
+                        || !entityLockInfoManager.isCompatible(eLockInfo, lockMode)) {
+                    return false;
+                }
+
+                entityInfoManager.increaseEntityLockCount(entityInfo);
+                entityLockInfoManager.increaseLockCount(eLockInfo, lockMode);
+                entityLockInfoManager.addHolder(eLockInfo, entityInfo);
+            }
+        } else {//eLockInfo doesn't exist, so this lock request is the first request and can be granted without waiting.
+            eLockInfo = entityLockInfoManager.allocate();
+            dLockInfo.getEntityResourceHT().put(entityHashValue, eLockInfo);
+            entityInfoManager.increaseEntityLockCount(entityInfoFromDLockInfo);
+            entityLockInfoManager.increaseLockCount(eLockInfo, lockMode);
+            entityLockInfoManager.addHolder(eLockInfo, entityInfoFromDLockInfo);
         }
 
-        woManager.deAllocate(waitObj);
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("Transaction " + txId + " wakes up and convert to " + reqMode);
-        }
         return true;
     }
 
-    @Override
-    public boolean unlock(TransactionContext context, byte[] resourceID) throws ACIDException {
-        long txId = context.getTransactionID();
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("Transaction " + txId + " wants to unlock on ");
-        }
-        synchronized (lmTables) {
-            TxrInfo txrInfo = lmTables.getTxrInfo(txId);
-            if (txrInfo == null) {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction " + txId + " has no locks on resource ");
-                }
-                return true;
-            }
-
-            TInfo transactionInfo = txrInfo.getTxrInfo(resourceID, LockInfo.ANY_LOCK_MODE, TxrInfo.NOT_KNOWN_IX);
-            if (transactionInfo == null) {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction " + txId + " has no locks on resource ");
-                }
-                return true;
-            }
-
-            int lockMode = transactionInfo.getMode();
-
-            LockInfo lInfo = (LockInfo) lmTables.getLockInfo(resourceID);
-            if (lInfo == null) {
-                throw new ACIDException("Trying to unlock() a lock, on a non-existing resource");
-            }
-            txrInfo.removeLock(resourceID, lockMode, TxrInfo.NOT_KNOWN_IX);
-            lInfo.removeFromGranted(txId, lockMode, LockInfo.UNKNOWN_IX);
-
-            Iterator<WaitingInfo> convIt = lInfo.getIteratorOnConverter();
-            while (convIt.hasNext()) {
-                WaitingInfo nextConvInfo = convIt.next();
-                if (nextConvInfo.isVictim()) {
-                    continue;
-                }
-                WaitEntry nextConv = nextConvInfo.getWaitingEntry();
-                synchronized (nextConv) {
-                    int reqIx = nextConv.getIX(); // entry ix for the (new)
-                    // requested lock
-                    long convIx = lInfo.getTxId(reqIx);
-                    long convTxId = lInfo.getTxId(reqIx);
-                    int curConvMode = lInfo.getGrantedLockMode(convTxId, LockInfo.UNKNOWN_IX);
-                    int reqConvMode = lInfo.getLockMode(reqIx);
-                    int updatedMask = lInfo.getUpdatedMask(convIx, curConvMode, LockInfo.UNKNOWN_IX);
-                    if (lMtx.conflicts(updatedMask, reqConvMode)) { // We found
-                                                                    // conflict,
-                                                                    // no more
-                                                                    // transactions
-                                                                    // need to
-                                                                    // be waken
-                                                                    // up
-                        context.setStartWaitTime(TransactionContext.INVALID_TIME);
-                        if (txrInfo.getSize() == 0) {
-                            lmTables.removeTxrInfo(txId);
-                            if (LOGGER.isLoggable(Level.INFO)) {
-                                LOGGER.info("Entry for Transaction " + txId + " removed from Txr Table (in unlock)");
-                            }
-                        }
-                        if (LOGGER.isLoggable(Level.INFO)) {
-                            LOGGER.info("Transaction " + txId + " unlocked its lock");
-                        }
-                        return true;
-                    }
-                    // Converter is ready to wake up
-                    lmTables.getTxrInfo(convTxId).getContext().setStatus(TransactionContext.ACTIVE_STATUS);
-                    lInfo.removeFromGranted(convTxId, curConvMode, LockInfo.UNKNOWN_IX /* curIx */);
-                    lInfo.addToGranted(convTxId, reqConvMode, LockInfo.NOT_FOUND);
-                    lInfo.prepareToRemoveFromConverters(convTxId, reqConvMode, reqIx);
-                    nextConv.wakeUp();
-                    convIt.remove();
-                    nextConv.notifyAll();
-                }
-            }
-
-            Iterator<WaitingInfo> waitIt = lInfo.getIteratorOnWaiters();
-            while (waitIt.hasNext()) {
-                WaitingInfo nextWaiterInfo = waitIt.next();
-                if (nextWaiterInfo.isVictim()) {
-                    continue;
-                }
-                WaitEntry nextWaiter = nextWaiterInfo.getWaitingEntry();
-                synchronized (nextWaiter) {
-                    int waitIx = nextWaiter.getIX();
-                    long waitTxId = lInfo.getTxId(waitIx);
-                    int reqLock = lInfo.getLockMode(waitIx);
-                    int mask = lInfo.getMask();
-                    if (lMtx.conflicts(mask, reqLock)) {
-                        if (LOGGER.isLoggable(Level.INFO)) {
-                            LOGGER.info("Transaction " + txId + " unlocked its lock on ");
-                        }
-
-                        context.setStartWaitTime(TransactionContext.INVALID_TIME);
-                        if (txrInfo.getSize() == 0) {
-                            lmTables.removeTxrInfo(txId);
-                            if (LOGGER.isLoggable(Level.INFO)) {
-                                LOGGER.info("Entry for Transaction " + txId + " removed from Txr Table (in unlock)");
-                            }
-                        }
-                        return true;
-                    }
-                    lInfo.addToGranted(waitTxId, reqLock, LockInfo.NOT_FOUND);
-                    lInfo.prepareToRemoveFromWaiters(waitTxId, reqLock, waitIx);
-                    nextWaiter.wakeUp();
-                    waitIt.remove();
-                    nextWaiter.notifyAll();
-                }
-            }
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("Transaction " + txId + " unlocked its lock");
-            }
-            context.setStartWaitTime(TransactionContext.INVALID_TIME);
-            if (txrInfo.getSize() == 0) {
-                lmTables.removeTxrInfo(txId);
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Entry for Transaction " + txId + " removed from Txr Table (in unlock)");
-                }
-            }
-            return true;
-        }
+    private void latchLockTable() {
+        lockTableLatch.writeLock().lock();
     }
 
-    @Override
-    public boolean getInstantlock(TransactionContext context, byte[] resourceID, int mode) throws ACIDException {
-        throw new ACIDException("Instant Locking is not supported");
+    private void unlatchLockTable() {
+        lockTableLatch.writeLock().unlock();
     }
 
-    public Iterator<Long> getTxrInfoIterator() {
-        return lmTables.getIteratorOnTxrs();
+    private void latchWaitNotify() {
+        waiterLatch.writeLock().lock();
     }
 
-    @Override
-    public synchronized Boolean releaseLocks(TransactionContext context) throws ACIDException {
-        long txId = context.getTransactionID();
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("Entry for Transaction " + txId + " removed from Txr Table (in unlock)");
-        }
-        synchronized (lmTables) {
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("Transaction " + txId + " started releasing its locks !");
-            }
-            TxrInfo txrInfo = lmTables.getTxrInfo(txId);
-            if (txrInfo == null) {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Transaction with ID " + txId
-                            + " has no locks to release. (Returning from Release Locks)");
-                }
-                return true;
-            }
-            // First Remove from the waiting list (if waiting)
-            byte[] waitOnRid = txrInfo.getWaitOnRid();
-            if (waitOnRid != null) {
-                LockInfo lInfo = (LockInfo) lmTables.getLockInfo(waitOnRid);
-                if ((lInfo.removeFromConverters(txId)) == null) {
-                    if ((lInfo.removeFromWaiters(txId)) == null) {
-                        throw new ACIDException("Transaction " + txId
-                                + " Not Found in the convert/wait list of the resource, it should have waited for");
-                    }
-                }
-            }
+    private void unlatchWaitNotify() {
+        waiterLatch.writeLock().unlock();
+    }
 
-            Iterator<TInfo> tInfoIt = txrInfo.getIterator();
+    private int handleLockWaiter(DatasetLockInfo dLockInfo, int eLockInfo, int entityInfo, boolean isUpgrade,
+            boolean isDatasetLockInfo, TransactionContext txnContext, JobInfo jobInfo, int duplicatedWaiterObjId)
+            throws ACIDException {
+        int waiterId = -1;
+        LockWaiter waiter;
+        int waiterCount = 0;
+        boolean isInterruptedExceptionOccurred = false;
 
-            while (tInfoIt.hasNext()) {
-                TInfo nextInfo = tInfoIt.next();
-                byte[] nextRid = nextInfo.getResourceId();
-                int nextLockMode = nextInfo.getMode();
-                LockInfo lInfo = lmTables.getLockInfo(nextRid);
-                lInfo.removeFromGranted(txId, nextLockMode, LockInfo.UNKNOWN_IX); // Remove
-                                                                                  // transaction's
-                                                                                  // granted
-                                                                                  // lock
-                // Now lets try to wake up Waiting Transactions
-                // First go through the ConvertList
-                Iterator<WaitingInfo> convIt = lInfo.getIteratorOnConverter();
-                boolean checkWaiters = true;
-                while (convIt.hasNext()) {
-                    WaitingInfo nextConvInfo = convIt.next();
-                    if (nextConvInfo.isVictim()) {
-                        continue;
-                    }
-                    WaitEntry nextConv = nextConvInfo.getWaitingEntry();
-                    synchronized (nextConv) {
-                        int reqIx = nextConv.getIX();
-                        long convIx = lInfo.getTxId(reqIx);
-                        int curIx = lInfo.findInGrantedList(convIx, LockInfo.ANY_LOCK_MODE); // index
-                                                                                             // of
-                                                                                             // the
-                                                                                             // entry
-                                                                                             // for
-                                                                                             // the
-                                                                                             // (old)
-                                                                                             // already
-                                                                                             // granted
-                                                                                             // lock
-                        long convTxId = lInfo.getTxId(reqIx);
-                        int curConvMode = lInfo.getGrantedLockMode(convTxId, curIx);
-                        int reqConvMode = lInfo.getLockMode(reqIx);
-                        int updatedMask = lInfo.getUpdatedMask(convIx, curConvMode, curIx);
-                        if (lMtx.conflicts(updatedMask, reqConvMode)) {
-                            checkWaiters = false;
-                            break;
-                        }
-                        lInfo.removeFromGranted(convTxId, curConvMode, curIx);
-                        lInfo.addToGranted(convTxId, reqConvMode, LockInfo.NOT_FOUND);
-                        lInfo.prepareToRemoveFromConverters(convTxId, reqConvMode, reqIx);
-                        lmTables.getTxrInfo(convTxId).getContext().setStartWaitTime(TransactionContext.INVALID_TIME);
-                        nextConv.wakeUp();
-                        convIt.remove();
-                        nextConv.notifyAll();
-                    }
-                }
-
-                if (checkWaiters) {
-                    // Going through the WaitList
-                    Iterator<WaitingInfo> waitIt = lInfo.getIteratorOnWaiters();
-                    while (waitIt.hasNext()) {
-                        WaitingInfo nextWaiterInfo = waitIt.next();
-                        if (nextWaiterInfo.isVictim()) {
-                            continue;
-                        }
-                        WaitEntry nextWaiter = nextWaiterInfo.getWaitingEntry();
-                        synchronized (nextWaiter) {
-                            int waitIx = nextWaiter.getIX();
-                            long waitTxId = lInfo.getTxId(waitIx);
-                            int reqLock = lInfo.getLockMode(waitIx);
-                            int mask = lInfo.getMask();
-                            if (lMtx.conflicts(mask, reqLock)) {
-                                break;
-                            }
-                            lInfo.addToGranted(waitTxId, reqLock, LockInfo.NOT_FOUND);
-                            lInfo.prepareToRemoveFromWaiters(waitTxId, reqLock, waitIx);
-                            lmTables.getTxrInfo(waitTxId).getContext()
-                                    .setStartWaitTime(TransactionContext.INVALID_TIME);
-                            nextWaiter.wakeUp();
-                            waitIt.remove();
-                            nextWaiter.notifyAll();
-                        }
-                    }
-                }
-            }
-
-            context.setStartWaitTime(TransactionContext.INVALID_TIME);
-            if ((lmTables.removeTxrInfo(txId)) == null) { // Remove Txr's entry
-                                                          // from the
-                                                          // transactions' table
-                throw new ACIDException("Transaction " + txId + " Not found in transactions table for removal");
+        if (duplicatedWaiterObjId != -1
+                || isDeadlockFree(dLockInfo, eLockInfo, entityInfo, isDatasetLockInfo, isUpgrade)) {//deadlock free -> wait
+            if (duplicatedWaiterObjId == -1) {
+                waiterId = lockWaiterManager.allocate(); //initial value of waiterObj: wait = true, victim = false
+                waiter = lockWaiterManager.getLockWaiter(waiterId);
+                waiter.setEntityInfoSlot(entityInfo);
+                jobInfo.addWaitingResource(waiterId);
+                waiter.setBeginWaitTime(System.currentTimeMillis());
             } else {
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Entry for Transaction " + txId + " removed from Txr Table (in release locks)");
+                waiterId = duplicatedWaiterObjId;
+                waiter = lockWaiterManager.getLockWaiter(waiterId);
+            }
+
+            if (duplicatedWaiterObjId == -1) {
+                //add actor properly
+                if (isDatasetLockInfo) {
+                    waiter.setWaitingOnEntityLock(false);
+                    if (isUpgrade) {
+                        dLockInfo.addUpgrader(waiterId);
+                        waiter.setWaiter(false);
+                    } else {
+                        dLockInfo.addWaiter(waiterId);
+                        waiter.setWaiter(true);
+                    }
+                } else {
+                    waiter.setWaitingOnEntityLock(true);
+                    if (isUpgrade) {
+                        waiter.setWaiter(false);
+                        entityLockInfoManager.addUpgrader(eLockInfo, waiterId);
+                    } else {
+                        waiter.setWaiter(true);
+                        entityLockInfoManager.addWaiter(eLockInfo, waiterId);
+                    }
                 }
             }
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("Transaction " + txId + " released its locks successfully !");
+            waiter.increaseWaiterCount();
+            waiter.setFirstGetUp(true);
+
+            latchWaitNotify();
+            unlatchLockTable();
+            synchronized (waiter) {
+                unlatchWaitNotify();
+                while (waiter.needWait()) {
+                    try {
+                        if (IS_DEBUG_MODE) {
+                            System.out.println("" + Thread.currentThread().getName() + "\twaits("
+                                    + waiter.getWaiterCount() + "): WID(" + waiterId + "),EID("
+                                    + waiter.getEntityInfoSlot() + ")");
+                        }
+                        waiter.wait();
+                    } catch (InterruptedException e) {
+                        //TODO figure-out what is the appropriate way to handle this exception
+                        e.printStackTrace();
+                        isInterruptedExceptionOccurred = true;
+                        waiter.setWait(false);
+                    }
+                }
             }
 
-            return true;
+            if (isInterruptedExceptionOccurred) {
+                throw new ACIDException("InterruptedException is caught");
+            }
+
+            //waiter woke up -> remove/deallocate waiter object and abort if timeout
+            latchLockTable();
+
+            if (txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS || waiter.isVictim()) {
+                try {
+                    requestAbort(txnContext);
+                } finally {
+                    unlatchLockTable();
+                }
+            }
+
+            if (waiter.isFirstGetUp()) {
+                waiter.setFirstGetUp(false);
+                waiterCount = waiter.getWaiterCount();
+            } else {
+                waiterCount = 0;
+            }
+
+            waiter.decreaseWaiterCount();
+            if (IS_DEBUG_MODE) {
+                System.out.println("" + Thread.currentThread().getName() + "\tgot-up!(" + waiter.getWaiterCount()
+                        + "): WID(" + waiterId + "),EID(" + waiter.getEntityInfoSlot() + ")");
+            }
+            if (waiter.getWaiterCount() == 0) {
+                //remove actor properly
+                if (isDatasetLockInfo) {
+                    if (isUpgrade) {
+                        dLockInfo.removeUpgrader(waiterId);
+                    } else {
+                        dLockInfo.removeWaiter(waiterId);
+                    }
+                } else {
+                    if (isUpgrade) {
+                        entityLockInfoManager.removeUpgrader(eLockInfo, waiterId);
+                    } else {
+                        entityLockInfoManager.removeWaiter(eLockInfo, waiterId);
+                    }
+                }
+
+                //if (!isUpgrade && isDatasetLockInfo) {
+                jobInfo.removeWaitingResource(waiterId);
+                //}
+                lockWaiterManager.deallocate(waiterId);
+            }
+
+        } else { //deadlock -> abort
+            //[Notice]
+            //Before requesting abort, the entityInfo for waiting datasetLock request is deallocated.
+            if (!isUpgrade && isDatasetLockInfo) {
+                //deallocate the entityInfo
+                entityInfoManager.deallocate(entityInfo);
+            }
+            try {
+                requestAbort(txnContext);
+            } finally {
+                unlatchLockTable();
+            }
         }
+
+        return waiterCount;
     }
 
-    private boolean isDeadlockFree(long txId, byte[] resourceId) {
-        return deadlockDetector.isSafeToAdd(txId, resourceId);
+    private boolean isDeadlockFree(DatasetLockInfo dLockInfo, int eLockInfo, int entityInfo, boolean isDatasetLockInfo,
+            boolean isUpgrade) {
+        return deadlockDetector.isSafeToAdd(dLockInfo, eLockInfo, entityInfo, isDatasetLockInfo, isUpgrade);
     }
 
-    private void requestTxrAbort(TransactionContext context) throws ACIDException {
-        context.setStartWaitTime(TransactionContext.INVALID_TIME);
-        throw new ACIDException("Transaction " + context.getTransactionID()
+    private void requestAbort(TransactionContext txnContext) throws ACIDException {
+        txnContext.setStatus(TransactionContext.TIMED_OUT_STATUS);
+        txnContext.setStartWaitTime(TransactionContext.INVALID_TIME);
+        throw new ACIDException("Transaction " + txnContext.getJobId()
                 + " should abort (requested by the Lock Manager)");
     }
 
-    @Override
-    public String getDebugLockStatus() throws ACIDException {
-        String s = "\nLock Status (For Debug Purpose):\n";
-        synchronized (lmTables) {
-            Iterator<Long> txIdIt = getTxrInfoIterator();
-            while (txIdIt.hasNext()) {
-                long nextTxId = txIdIt.next();
-                TxrInfo nextInfoList = lmTables.getTxrInfo(nextTxId);
-                byte[] nextWaitOnRid = nextInfoList.getWaitOnRid();
-                String status = (nextWaitOnRid == null ? " ACTIVE" : " WAITING");
-                if ((nextWaitOnRid != null)) {
-                    LockInfo lInfo = (LockInfo) lmTables.getLockInfo(nextWaitOnRid);
-                    int wlModeIx = lInfo.findInConvertList(nextTxId, LockInfo.ANY_LOCK_MODE);
-                    if (wlModeIx == LockInfo.NOT_FOUND) {
-                        wlModeIx = lInfo.findInWaitList(nextTxId, LockInfo.ANY_LOCK_MODE);
+    /**
+     * For now, upgrading lock granule from entity-granule to dataset-granule is not supported!!
+     * 
+     * @param fromLockMode
+     * @param toLockMode
+     * @return
+     */
+    private boolean isLockUpgrade(byte fromLockMode, byte toLockMode) {
+        return fromLockMode == LockMode.S && toLockMode == LockMode.X;
+    }
+
+    /**
+     * wake up upgraders first, then waiters.
+     * Criteria to wake up upgraders: if the upgrading lock mode is compatible, then wake up the upgrader.
+     */
+    private void wakeUpDatasetLockWaiters(DatasetLockInfo dLockInfo) {
+        int waiterObjId = dLockInfo.getFirstUpgrader();
+        int entityInfo;
+        LockWaiter waiterObj;
+        byte datasetLockMode;
+        byte lockMode;
+        boolean areAllUpgradersAwaken = true;
+
+        consecutiveWakeupContext.reset();
+        while (waiterObjId != -1) {
+            //wake up upgraders
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            datasetLockMode = entityInfoManager.getPKHashVal(entityInfo) == -1 ? LockMode.X : LockMode.IX;
+            if (dLockInfo.isUpgradeCompatible(datasetLockMode, entityInfo)
+                    && consecutiveWakeupContext.isCompatible(datasetLockMode)) {
+                consecutiveWakeupContext.setLockMode(datasetLockMode);
+                //compatible upgrader is waken up
+                latchWaitNotify();
+                synchronized (waiterObj) {
+                    unlatchWaitNotify();
+                    waiterObj.setWait(false);
+                    if (IS_DEBUG_MODE) {
+                        System.out.println("" + Thread.currentThread().getName() + "\twake-up(D): WID(" + waiterObjId
+                                + "),EID(" + waiterObj.getEntityInfoSlot() + ")");
                     }
-                    int wlMode = lInfo.getLockMode(wlModeIx);
-                    String wLModeRep = (wlMode == 0 ? "S" : "X");
-                    status += " for " + wLModeRep + " lock";
+                    waiterObj.notifyAll();
                 }
-
-                String lockModes = "";
-                Iterator<TInfo> tInfoIt = nextInfoList.getIterator();
-                while (tInfoIt.hasNext()) {
-                    TInfo next = tInfoIt.next();
-                    int nextLockMode = next.getMode();
-                    lockModes += (nextLockMode == 0 ? "S" : "X");
-                    lockModes += ", ";
-                }
-                s += "Transaction: " + nextTxId + "\t- (Status: " + status + ") --> Granted Locks List: ( " + lockModes
-                        + " )\n";
+                waiterObjId = waiterObj.getNextWaiterObjId();
+            } else {
+                areAllUpgradersAwaken = false;
+                break;
             }
-
         }
+
+        if (areAllUpgradersAwaken) {
+            //wake up waiters
+            waiterObjId = dLockInfo.getFirstWaiter();
+            while (waiterObjId != -1) {
+                waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+                entityInfo = waiterObj.getEntityInfoSlot();
+                lockMode = entityInfoManager.getDatasetLockMode(entityInfo);
+                datasetLockMode = entityInfoManager.getPKHashVal(entityInfo) == -1 ? lockMode
+                        : lockMode == LockMode.S ? LockMode.IS : LockMode.IX;
+                if (dLockInfo.isCompatible(datasetLockMode) && consecutiveWakeupContext.isCompatible(datasetLockMode)) {
+                    consecutiveWakeupContext.setLockMode(datasetLockMode);
+                    //compatible waiter is waken up
+                    latchWaitNotify();
+                    synchronized (waiterObj) {
+                        unlatchWaitNotify();
+                        waiterObj.setWait(false);
+                        if (IS_DEBUG_MODE) {
+                            System.out.println("" + Thread.currentThread().getName() + "\twake-up(D): WID("
+                                    + waiterObjId + "),EID(" + waiterObj.getEntityInfoSlot() + ")");
+                        }
+                        waiterObj.notifyAll();
+                    }
+                    waiterObjId = waiterObj.getNextWaiterObjId();
+                } else {
+                    break;
+                }
+            }
+        }
+    }
+
+    private void wakeUpEntityLockWaiters(int eLockInfo) {
+        boolean areAllUpgradersAwaken = true;
+        int waiterObjId = entityLockInfoManager.getUpgrader(eLockInfo);
+        int entityInfo;
+        LockWaiter waiterObj;
+        byte entityLockMode;
+
+        consecutiveWakeupContext.reset();
+        while (waiterObjId != -1) {
+            //wake up upgraders
+            waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+            entityInfo = waiterObj.getEntityInfoSlot();
+            if (entityLockInfoManager.isUpgradeCompatible(eLockInfo, LockMode.X, entityInfo)
+                    && consecutiveWakeupContext.isCompatible(LockMode.X)) {
+                consecutiveWakeupContext.setLockMode(LockMode.X);
+                latchWaitNotify();
+                synchronized (waiterObj) {
+                    unlatchWaitNotify();
+                    waiterObj.setWait(false);
+                    if (IS_DEBUG_MODE) {
+                        System.out.println("" + Thread.currentThread().getName() + "\twake-up(E): WID(" + waiterObjId
+                                + "),EID(" + waiterObj.getEntityInfoSlot() + ")");
+                    }
+                    waiterObj.notifyAll();
+                }
+                waiterObjId = waiterObj.getNextWaiterObjId();
+            } else {
+                areAllUpgradersAwaken = false;
+                break;
+            }
+        }
+
+        if (areAllUpgradersAwaken) {
+            //wake up waiters
+            waiterObjId = entityLockInfoManager.getFirstWaiter(eLockInfo);
+            while (waiterObjId != -1) {
+                waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+                entityInfo = waiterObj.getEntityInfoSlot();
+                entityLockMode = entityInfoManager.getEntityLockMode(entityInfo);
+                if (entityLockInfoManager.isCompatible(eLockInfo, entityLockMode)
+                        && consecutiveWakeupContext.isCompatible(entityLockMode)) {
+                    consecutiveWakeupContext.setLockMode(entityLockMode);
+                    //compatible waiter is waken up
+                    latchWaitNotify();
+                    synchronized (waiterObj) {
+                        unlatchWaitNotify();
+                        waiterObj.setWait(false);
+                        if (IS_DEBUG_MODE) {
+                            System.out.println("" + Thread.currentThread().getName() + "\twake-up(E): WID("
+                                    + waiterObjId + "),EID(" + waiterObj.getEntityInfoSlot() + ")");
+                        }
+                        waiterObj.notifyAll();
+                    }
+                } else {
+                    break;
+                }
+                waiterObjId = waiterObj.getNextWaiterObjId();
+            }
+        }
+    }
+
+    @Override
+    public String prettyPrint() throws ACIDException {
+        StringBuilder s = new StringBuilder("\n########### LockManager Status #############\n");
         return s + "\n";
     }
 
     public void sweepForTimeout() throws ACIDException {
-        synchronized (lmTables) {
-            Iterator<Long> txrIt = lmTables.getIteratorOnTxrs();
-            while (txrIt.hasNext()) {
-                long nextTxrID = txrIt.next();
-                TxrInfo nextTxrInfo = lmTables.getTxrInfo(nextTxrID);
-                if (toutDetector.isVictim(nextTxrInfo)) {
-                    nextTxrInfo.getContext().setStatus(TransactionContext.TIMED_OUT_SATUS);
-                    LockInfo nextLockInfo = lmTables.getLockInfo(nextTxrInfo.getWaitOnRid());
-                    synchronized (nextLockInfo) {
-                        WaitingInfo nextVictim = nextLockInfo.getWaitingOnObject(nextTxrID, LockInfo.ANY_LOCK_MODE);
-                        nextVictim.setAsVictim();
-                        toutDetector.addToVictimsList(nextVictim.getWaitingEntry());
-                    }
-                }
+        JobInfo jobInfo;
+        int waiterObjId;
+        LockWaiter waiterObj;
+
+        latchLockTable();
+
+        Iterator<Entry<JobId, JobInfo>> iter = jobHT.entrySet().iterator();
+        while (iter.hasNext()) {
+            Map.Entry<JobId, JobInfo> pair = (Map.Entry<JobId, JobInfo>) iter.next();
+            jobInfo = pair.getValue();
+            waiterObjId = jobInfo.getFirstWaitingResource();
+            while (waiterObjId != -1) {
+                waiterObj = lockWaiterManager.getLockWaiter(waiterObjId);
+                toutDetector.checkAndSetVictim(waiterObj);
+                waiterObjId = waiterObj.getNextWaiterObjId();
             }
         }
-    }
 
-    public LockInfo getLockInfo(byte[] resourceID) {
-        return lmTables.getLockInfo(resourceID);
-    }
-
-    public TxrInfo getTxrInfo(long txrId) {
-        return lmTables.getTxrInfo(txrId);
+        unlatchLockTable();
     }
 }
 
-class LMTables {
-    /**
-     * An instance of this class mainly manages and synchronizes the access to
-     * the lock manager hash tables
-     */
+class ConsecutiveWakeupContext {
+    private boolean IS;
+    private boolean IX;
+    private boolean S;
+    private boolean X;
 
-    private ILockHashTable<byte[], LockInfo> resToLInfo; // mapping from
-                                                         // resourceID to
-                                                         // information about
-                                                         // the locks on it
-    private ILockHashTable<Long, TxrInfo> txToTxrInfo; // mapping from
-                                                       // transactionID to
-                                                       // informations about its
-                                                       // lock(s)
-
-    public LMTables(int initialSize) {
-        resToLInfo = new ResourcesHT(initialSize);
-        txToTxrInfo = new TransactionsHT(initialSize);
+    public void reset() {
+        IS = false;
+        IX = false;
+        S = false;
+        X = false;
     }
 
-    public LockInfo getLockInfo(byte[] resourceId) {
-        return resToLInfo.get(resourceId);
-    }
+    public boolean isCompatible(byte lockMode) {
+        switch (lockMode) {
+            case LockMode.IX:
+                return !S && !X;
 
-    public void putLockInfo(byte[] resourceID, LockInfo lInfo) {
-        resToLInfo.put(resourceID, lInfo);
-    }
+            case LockMode.IS:
+                return !X;
 
-    public TxrInfo getTxrInfo(long txrId) {
-        return txToTxrInfo.get(txrId);
-    }
+            case LockMode.X:
+                return !IS && !IX && !S && !X;
 
-    public void putTxrInfo(long txrId, TxrInfo txrInfo) {
-        txToTxrInfo.put(txrId, txrInfo);
-    }
+            case LockMode.S:
+                return !IX && !X;
 
-    public TxrInfo removeTxrInfo(long txId) {
-        return txToTxrInfo.remove(txId);
-    }
-
-    public int getTxrTableSize() {
-        return txToTxrInfo.getKeysetSize();
-    }
-
-    public Iterator<Long> getIteratorOnTxrs() {
-        return ((TransactionsHT) txToTxrInfo).getIteratorOnTxs();
-    }
-
-}
-
-class ResourcesHT implements ILockHashTable<byte[], LockInfo> {
-
-    private Hashtable<LockTag, LockInfo> table;
-    private LockTag tag;
-
-    public ResourcesHT(int initCapacity) {
-        this.table = new Hashtable<LockTag, LockInfo>(initCapacity);
-        this.tag = new LockTag(null);
-    }
-
-    @Override
-    public synchronized void put(byte[] rsId, LockInfo info) {
-        table.put(new LockTag(rsId), (LockInfo) info);
-    }
-
-    @Override
-    public synchronized LockInfo get(byte[] rsId) {
-        tag.setRsId(rsId);
-        return (table.get(tag));
-    }
-
-    @Override
-    public LockInfo remove(byte[] rsId) {
-        tag.setRsId(rsId);
-        return (table.remove(tag));
-    }
-
-    @Override
-    public int getKeysetSize() {
-        return table.size();
-    }
-
-}
-
-class TransactionsHT implements ILockHashTable<Long, TxrInfo> {
-
-    private Hashtable<Long, TxrInfo> table;
-
-    public TransactionsHT(int initCapacity) {
-        this.table = new Hashtable<Long, TxrInfo>(initCapacity);
-    }
-
-    @Override
-    public synchronized void put(Long key, TxrInfo value) {
-        table.put(key, value);
-
-    }
-
-    @Override
-    public synchronized TxrInfo get(Long key) {
-        return (table.get(key));
-    }
-
-    public Iterator<Long> getIteratorOnTxs() {
-        return table.keySet().iterator();
-    }
-
-    @Override
-    public TxrInfo remove(Long key) {
-        return table.remove(key);
-    }
-
-    @Override
-    public int getKeysetSize() {
-        return table.size();
-    }
-
-}
-
-class LockTag {
-    /**
-     * Used as a wrapper around byte[], which is used as the key for the
-     * hashtables
-     */
-
-    byte[] rsId;
-
-    public LockTag(byte[] rsId) {
-        setRsId(rsId);
-    }
-
-    public void setRsId(byte[] rsId) {
-        this.rsId = rsId;
-    }
-
-    @Override
-    public int hashCode() {
-        return Arrays.hashCode(rsId);
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if ((o == null) || !(o instanceof LockTag)) {
-            return false;
-        }
-        return Arrays.equals(((LockTag) o).rsId, this.rsId);
-    }
-}
-
-class WaitObjectManager {
-    /**
-     * Manages the set of waiting objects (objects used to manage waiters) to
-     * avoid object/garbage creation as much as possible
-     */
-    final int EOL = -1;
-    ArrayList<WaitEntry> list;
-    AtomicInteger max;
-    int nextFree;
-
-    public WaitObjectManager() {
-        list = new ArrayList<WaitEntry>();
-        nextFree = EOL;
-        max = new AtomicInteger(0);
-    }
-
-    public WaitEntry allocate() throws ACIDException {
-        WaitEntry o = null;
-        synchronized (list) {
-            if (nextFree == EOL) {
-                o = new WaitEntry(max.getAndIncrement(), LockInfo.UNKNOWN_IX, EOL);
-                list.add(o);
-                return o;
-            }
-            o = list.get(nextFree);
-            nextFree = o.getNext();
-            o.setNext(EOL);
-        }
-        return o;
-    }
-
-    public void deAllocate(Object o) {
-        synchronized (list) {
-            ((WaitEntry) o).setNext(nextFree);
-            nextFree = ((WaitEntry) o).getId();
+            default:
+                throw new IllegalStateException("Invalid upgrade lock mode");
         }
     }
 
+    public void setLockMode(byte lockMode) {
+        switch (lockMode) {
+            case LockMode.IX:
+                IX = true;
+                return;
+
+            case LockMode.IS:
+                IS = true;
+                return;
+
+            case LockMode.X:
+                X = true;
+                return;
+
+            case LockMode.S:
+                S = true;
+                return;
+
+            default:
+                throw new IllegalStateException("Invalid lock mode");
+        }
+
+    }
+
 }
-
-class WaitEntry {
-    /**
-     * Captures the information about a waiting transaction
-     */
-
-    private int id; // ID of this object (used for managing the waiting objects
-                    // and recycling them)
-    private int eix; // index of the entry corresponding to the waiting
-                     // transaction
-    private boolean shouldWait; // whether the waiter needs to continue its
-                                // waiting or not
-    private int next; // The next waitEntry in the chain of wait Entries (used
-                      // for managing the waiting objects and recycling them)
-
-    public WaitEntry(int id, int eix, int next) {
-        this.id = id;
-        this.eix = eix;
-        shouldWait = true;
-        this.next = next;
-    }
-
-    public int getIX() {
-        return eix;
-    }
-
-    public void setIx(int eix) {
-        this.eix = eix;
-    }
-
-    public int getId() {
-        return id;
-    }
-
-    public void setNext(int n) {
-        next = n;
-    }
-
-    public int getNext() {
-        return next;
-    }
-
-    public boolean needWait() {
-        return shouldWait;
-    }
-
-    public void wakeUp() {
-        this.shouldWait = false;
-    }
-
-    public void setForWait() {
-        this.shouldWait = true;
-    }
-}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
new file mode 100644
index 0000000..c3b47bc
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
@@ -0,0 +1,618 @@
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.NoSuchElementException;
+import java.util.Scanner;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+
+public class LockManagerDeterministicUnitTest {
+
+    public static void main(String args[]) throws ACIDException, IOException {
+        //initialize controller thread
+        String requestFileName = new String(
+                "src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestFile");
+        Thread t = new Thread(new LockRequestController(requestFileName));
+        t.start();
+    }
+}
+
+class LockRequestController implements Runnable {
+
+    public static final boolean IS_DEBUG_MODE = false;
+    TransactionSubsystem txnProvider;
+    WorkerReadyQueue workerReadyQueue;
+    ArrayList<LockRequest> requestList;
+    ArrayList<ArrayList<Integer>> expectedResultList;
+    int resultListIndex;
+    LockManager lockMgr;
+    String requestFileName;
+    long defaultWaitTime;
+
+    public LockRequestController(String requestFileName) throws ACIDException {
+        this.txnProvider = new TransactionSubsystem("LockManagerPredefinedUnitTest", null);;
+        this.workerReadyQueue = new WorkerReadyQueue();
+        this.requestList = new ArrayList<LockRequest>();
+        this.expectedResultList = new ArrayList<ArrayList<Integer>>();
+        this.lockMgr = (LockManager) txnProvider.getLockManager();
+        this.requestFileName = new String(requestFileName);
+        this.resultListIndex = 0;
+        this.defaultWaitTime = 10;
+    }
+
+    @Override
+    public void run() {
+        Thread.currentThread().setName("Thread-0");
+        HashMap<String, Thread> threadMap = new HashMap<String, Thread>();
+        Thread t = null;
+        LockRequest lockRequest = null;
+        boolean isSuccess = true;
+
+        try {
+            readRequest();
+        } catch (IOException e) {
+            e.printStackTrace();
+            System.exit(-1);
+        } catch (ACIDException e) {
+            e.printStackTrace();
+            System.exit(-1);
+        }
+
+        //initialize workerThread
+        int size = requestList.size();
+        for (int i = 0; i < size; i++) {
+            lockRequest = requestList.get(i);
+            if (lockRequest.threadName.equals("Thread-0")) {
+                //Thread-0 is controller thread.
+                continue;
+            }
+            t = threadMap.get(lockRequest.threadName);
+            if (t == null) {
+                t = new Thread(new LockRequestWorker(txnProvider, workerReadyQueue, lockRequest.threadName),
+                        lockRequest.threadName);
+                threadMap.put(lockRequest.threadName, t);
+                t.start();
+                log("Created " + lockRequest.threadName);
+            }
+        }
+
+        //wait for all workerThreads to be ready
+        try {
+            log("waiting for all workerThreads to complete initialization ...");
+            Thread.sleep(5);
+        } catch (InterruptedException e1) {
+            e1.printStackTrace();
+        }
+        while (workerReadyQueue.size() != threadMap.size()) {
+            try {
+                log(" .");
+                Thread.sleep(5);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+        //make workerThread work
+        while (requestList.size() != 0) {
+            lockRequest = requestList.remove(0);
+            log("Processing: " + lockRequest.prettyPrint());
+            try {
+                if (!handleRequest(lockRequest)) {
+                    log("\n*** Test Failed ***");
+                    isSuccess = false;
+                    break;
+                } else {
+                    log("Processed: " + lockRequest.prettyPrint());
+                }
+            } catch (ACIDException e) {
+                e.printStackTrace();
+                break;
+            }
+        }
+
+        if (isSuccess) {
+            log("\n*** Test Passed ***");
+        }
+    }
+
+    public boolean handleRequest(LockRequest request) throws ACIDException {
+        LockRequestWorker worker = null;
+        int i = 0;
+
+        if (request.requestType == RequestType.CHECK_SEQUENCE) {
+            return validateExpectedResult(true);
+        } else if (request.requestType == RequestType.CHECK_SET) {
+            return validateExpectedResult(false);
+        } else if (request.requestType == RequestType.WAIT) {
+            try {
+                Thread.sleep((long) request.entityHashValue);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+                return false;
+            }
+        } else if (request.requestType == RequestType.END) {
+            worker = workerReadyQueue.pop(request.threadName);
+            while (worker == null) {
+                if (!IS_DEBUG_MODE) {
+                    log(request.threadName + " is not in the workerReadyQueue");
+                    return false;
+                }
+                log(Thread.currentThread().getName() + " waiting for " + request.threadName
+                        + " to be in the workerReadyQueue[" + i++ + "].");
+                try {
+                    Thread.sleep((long) 10);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                    return false;
+                }
+                worker = workerReadyQueue.pop(request.threadName);
+            }
+            synchronized (worker) {
+                worker.setDone(true);
+                worker.setWait(false);
+                worker.notify();
+            }
+            try {
+                Thread.sleep((long) defaultWaitTime);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        } else {
+            worker = workerReadyQueue.pop(request.threadName);
+            while (worker == null) {
+                if (!IS_DEBUG_MODE) {
+                    log(request.threadName + " is not in the workerReadyQueue");
+                    return false;
+                }
+                log(Thread.currentThread().getName() + " waiting for " + request.threadName
+                        + " to be in the workerReadyQueue[" + i++ + "].");
+                try {
+                    Thread.sleep((long) 10);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                worker = workerReadyQueue.pop(request.threadName);
+            }
+
+            synchronized (worker) {
+                worker.setLockRequest(request);
+                worker.setWait(false);
+                worker.notify();
+            }
+
+            try {
+                Thread.sleep((long) defaultWaitTime);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+        return true;
+    }
+
+    public boolean validateExpectedResult(boolean isSequence) {
+
+        if (isSequence) {
+            return workerReadyQueue.checkSequence(expectedResultList.get(resultListIndex++));
+        } else {
+            return workerReadyQueue.checkSet(expectedResultList.get(resultListIndex++));
+        }
+
+    }
+
+    public void readRequest() throws IOException, ACIDException {
+        int i = 0;
+        LockRequest lockRequest = null;
+        TransactionContext txnContext = null;
+        HashMap<Integer, TransactionContext> jobMap = new HashMap<Integer, TransactionContext>();
+
+        int threadId;
+        String requestType;
+        int jobId;
+        int datasetId;
+        int PKHashVal;
+        int waitTime;
+        ArrayList<Integer> list = null;
+        String lockMode;
+
+        Scanner scanner = new Scanner(new FileInputStream(requestFileName));
+        while (scanner.hasNextLine()) {
+            try {
+                threadId = Integer.parseInt(scanner.next().substring(1));
+                requestType = scanner.next();
+                if (requestType.equals("CSQ") || requestType.equals("CST") || requestType.equals("END")) {
+                    log("LockRequest[" + i++ + "]:T" + threadId + "," + requestType);
+                    lockRequest = new LockRequest("Thread-" + threadId, getRequestType(requestType));
+                    if (requestType.equals("CSQ") || requestType.equals("CST")) {
+                        list = new ArrayList<Integer>();
+                        while (scanner.hasNextInt()) {
+                            threadId = scanner.nextInt();
+                            if (threadId < 0) {
+                                break;
+                            }
+                            list.add(threadId);
+                        }
+                        expectedResultList.add(list);
+                    }
+                } else if (requestType.equals("DW")) {
+                    defaultWaitTime = scanner.nextInt();
+                    log("LockRequest[" + i++ + "]:T" + threadId + "," + requestType + "," + defaultWaitTime);
+                    continue;
+                } else if (requestType.equals("W")) {
+                    waitTime = scanner.nextInt();
+                    log("LockRequest[" + i++ + "]:T" + threadId + "," + requestType);
+                    lockRequest = new LockRequest("Thread-" + threadId, getRequestType(requestType), waitTime);
+                } else {
+                    jobId = Integer.parseInt(scanner.next().substring(1));
+                    datasetId = Integer.parseInt(scanner.next().substring(1));
+                    PKHashVal = Integer.parseInt(scanner.next().substring(1));
+                    lockMode = scanner.next();
+                    txnContext = jobMap.get(jobId);
+                    if (txnContext == null) {
+                        txnContext = new TransactionContext(new JobId(jobId), txnProvider);
+                        jobMap.put(jobId, txnContext);
+                    }
+                    log("LockRequest[" + i++ + "]:T" + threadId + "," + requestType + ",J" + jobId + ",D" + datasetId
+                            + ",E" + PKHashVal + "," + lockMode);
+                    lockRequest = new LockRequest("Thread-" + threadId, getRequestType(requestType), new DatasetId(
+                            datasetId), PKHashVal, getLockMode(lockMode), txnContext);
+                }
+
+                requestList.add(lockRequest);
+            } catch (NoSuchElementException e) {
+                scanner.close();
+                break;
+            }
+        }
+    }
+
+    public void log(String s) {
+        System.out.println(s);
+    }
+
+    private int getRequestType(String s) {
+        if (s.equals("L")) {
+            return RequestType.LOCK;
+        }
+
+        if (s.equals("TL")) {
+            return RequestType.TRY_LOCK;
+        }
+
+        if (s.equals("IL")) {
+            return RequestType.INSTANT_LOCK;
+        }
+
+        if (s.equals("ITL")) {
+            return RequestType.INSTANT_TRY_LOCK;
+        }
+
+        if (s.equals("UL")) {
+            return RequestType.UNLOCK;
+        }
+
+        if (s.equals("RL")) {
+            return RequestType.RELEASE_LOCKS;
+        }
+
+        if (s.equals("CSQ")) {
+            return RequestType.CHECK_SEQUENCE;
+        }
+
+        if (s.equals("CST")) {
+            return RequestType.CHECK_SET;
+        }
+
+        if (s.equals("END")) {
+            return RequestType.END;
+        }
+
+        if (s.equals("W")) {
+            return RequestType.WAIT;
+        }
+
+        try {
+            throw new UnsupportedOperationException("Invalid request type:" + s);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            System.exit(0);
+        }
+
+        return -1;
+
+    }
+
+    private byte getLockMode(String s) {
+        if (s.equals("S")) {
+            return LockMode.S;
+        }
+
+        if (s.equals("X")) {
+            return LockMode.X;
+        }
+
+        try {
+            throw new UnsupportedOperationException("Invalid lock mode type:" + s);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            System.exit(0);
+        }
+
+        return -1;
+    }
+}
+
+class LockRequestWorker implements Runnable {
+
+    String threadName;
+    TransactionSubsystem txnProvider;
+    ILockManager lockMgr;
+    WorkerReadyQueue workerReadyQueue;
+    LockRequest lockRequest;
+    boolean needWait;
+    boolean isAwaken;
+    boolean isDone;
+
+    public LockRequestWorker(TransactionSubsystem txnProvider, WorkerReadyQueue workerReadyQueue, String threadName) {
+        this.txnProvider = txnProvider;
+        this.lockMgr = txnProvider.getLockManager();
+        this.workerReadyQueue = workerReadyQueue;
+        this.threadName = new String(threadName);
+        this.lockRequest = null;
+        needWait = true;
+        isDone = false;
+        isAwaken = false;
+    }
+
+    public boolean isAwaken() {
+        return isAwaken;
+    }
+
+    @Override
+    public void run() {
+        //initial wait
+        needWait = true;
+        isAwaken = false;
+
+        while (!isDone) {
+            while (needWait) {
+                synchronized (this) {
+                    workerReadyQueue.push(this);
+                    try {
+                        this.wait();
+                        isAwaken = true;
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+
+            if (isDone) {
+                break;
+            }
+
+            try {
+                sendRequest(lockRequest);
+            } catch (ACIDException e) {
+                if (lockRequest.txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS) {
+                    if (lockRequest.txnContext.getTxnState() != TransactionState.ABORTED) {
+                        lockRequest.txnContext.setTxnState(TransactionState.ABORTED);
+                        log("*** " + lockRequest.txnContext.getJobId() + " lock request causing deadlock ***");
+                        log("Abort --> Releasing all locks acquired by " + lockRequest.txnContext.getJobId());
+                        try {
+                            lockMgr.releaseLocks(lockRequest.txnContext);
+                        } catch (ACIDException e1) {
+                            e1.printStackTrace();
+                        }
+                        log("Abort --> Released all locks acquired by " + lockRequest.txnContext.getJobId());
+                    }
+                    isDone = true;
+                } else {
+                    e.printStackTrace();
+                    System.exit(-1);
+                }
+            }
+
+            try {
+                Thread.sleep(1);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+
+            needWait = true;
+            isAwaken = false;
+        }
+    }
+
+    public void sendRequest(LockRequest request) throws ACIDException {
+
+        switch (request.requestType) {
+            case RequestType.LOCK:
+                lockMgr.lock(request.datasetIdObj, request.entityHashValue, request.lockMode, request.txnContext);
+                break;
+            case RequestType.INSTANT_LOCK:
+                lockMgr.instantLock(request.datasetIdObj, request.entityHashValue, request.lockMode, request.txnContext);
+                break;
+            case RequestType.TRY_LOCK:
+                request.isTryLockFailed = !lockMgr.tryLock(request.datasetIdObj, request.entityHashValue,
+                        request.lockMode, request.txnContext);
+                break;
+            case RequestType.INSTANT_TRY_LOCK:
+                lockMgr.instantTryLock(request.datasetIdObj, request.entityHashValue, request.lockMode,
+                        request.txnContext);
+                break;
+            case RequestType.UNLOCK:
+                lockMgr.unlock(request.datasetIdObj, request.entityHashValue, request.txnContext);
+                break;
+            case RequestType.RELEASE_LOCKS:
+                lockMgr.releaseLocks(request.txnContext);
+                break;
+            default:
+                throw new UnsupportedOperationException("Unsupported lock method");
+        }
+    }
+
+    public void setLockRequest(LockRequest request) {
+        this.lockRequest = request;
+    }
+
+    public void setWait(boolean wait) {
+        needWait = wait;
+    }
+
+    public void setDone(boolean done) {
+        isDone = done;
+    }
+
+    public String getThreadName() {
+        return threadName;
+    }
+
+    public void log(String s) {
+        System.out.println(s);
+    }
+}
+
+class WorkerReadyQueue {
+    ArrayList<LockRequestWorker> workerReadyQueue;
+
+    public WorkerReadyQueue() {
+        workerReadyQueue = new ArrayList<LockRequestWorker>();
+    }
+
+    public synchronized void push(LockRequestWorker worker) {
+        workerReadyQueue.add(worker);
+    }
+
+    public synchronized LockRequestWorker pop(String threadName) {
+        int i;
+        LockRequestWorker worker = null;
+        int size = workerReadyQueue.size();
+        for (i = 0; i < size; i++) {
+            worker = workerReadyQueue.get(i);
+            if (worker.getThreadName().equals(threadName)) {
+                workerReadyQueue.remove(i);
+                break;
+            }
+        }
+
+        if (i == size) {
+            return null;
+        } else {
+            return worker;
+        }
+    }
+
+    public synchronized int size() {
+        return workerReadyQueue.size();
+    }
+
+    public boolean checkSet(ArrayList<Integer> threadIdList) {
+        int i;
+        int j;
+        StringBuilder s = new StringBuilder();
+        LockRequestWorker worker = null;
+        int resultListSize = 0;
+        int queueSize = workerReadyQueue.size();
+        int listSize = threadIdList.size();
+
+        s.append("ExpectedList(Set):\t");
+        for (i = 0; i < listSize; i++) {
+            s.append(threadIdList.get(i)).append(" ");
+        }
+        s.append("\n");
+
+        while (queueSize < listSize) {
+            //wait until workers finish its task
+            try {
+                Thread.sleep(1);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            log(Thread.currentThread().getName() + " waiting for worker to finish its task...");
+            queueSize = workerReadyQueue.size();
+        }
+
+        if (listSize != queueSize) {
+            log("listSize:" + listSize + ", queueSize:" + queueSize);
+            return false;
+        }
+
+        s.append("ResultList(Set):\t");
+        for (i = 0; i < listSize; i++) {
+            for (j = 0; j < queueSize; j++) {
+                worker = workerReadyQueue.get(j);
+                if (worker.getThreadName().equals("Thread-" + threadIdList.get(i))) {
+                    s.append(threadIdList.get(i)).append(" ");
+                    resultListSize++;
+                    break;
+                }
+            }
+        }
+
+        log(s.toString());
+        if (listSize != resultListSize) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public boolean checkSequence(ArrayList<Integer> threadIdList) {
+        int i;
+        StringBuilder s = new StringBuilder();
+        LockRequestWorker worker = null;
+        int queueSize = workerReadyQueue.size();
+        int listSize = threadIdList.size();
+
+        s.append("ExpectedList(Sequence):\t");
+        for (i = 0; i < listSize; i++) {
+            s.append(threadIdList.get(i)).append(" ");
+        }
+        s.append("\n");
+
+        while (queueSize < listSize) {
+            //wait until workers finish its task
+            try {
+                Thread.sleep(1);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            log(Thread.currentThread().getName() + "Waiting for worker to finish its task...");
+            queueSize = workerReadyQueue.size();
+        }
+
+        if (queueSize != listSize) {
+            return false;
+        }
+
+        s.append("ResultList(Sequence):\t");
+        for (i = 0; i < listSize; i++) {
+            worker = workerReadyQueue.get(i);
+            if (!worker.getThreadName().equals("Thread-" + threadIdList.get(i))) {
+                log(s.toString());
+                return false;
+            } else {
+                s.append(threadIdList.get(i)).append(" ");
+            }
+        }
+
+        log(s.toString());
+        return true;
+    }
+
+    public void log(String s) {
+        System.out.println(s);
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
new file mode 100644
index 0000000..89a15ef
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
@@ -0,0 +1,610 @@
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.util.ArrayList;
+import java.util.Random;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+
+/**
+ * LockManagerUnitTest: unit test of LockManager
+ * 
+ * @author kisskys
+ */
+
+public class LockManagerRandomUnitTest {
+
+    private static final int MAX_NUM_OF_UPGRADE_JOB = 2;//2
+    private static final int MAX_NUM_OF_ENTITY_LOCK_JOB = 8;//8
+    private static final int MAX_NUM_OF_DATASET_LOCK_JOB = 2;//2
+    private static final int MAX_NUM_OF_THREAD_IN_A_JOB = 2; //4
+    private static int jobId = 0;
+    private static Random rand;
+
+    public static void main(String args[]) throws ACIDException {
+        int i;
+        TransactionSubsystem txnProvider = new TransactionSubsystem("LockManagerRandomUnitTest", null);
+        rand = new Random(System.currentTimeMillis());
+        for (i = 0; i < MAX_NUM_OF_ENTITY_LOCK_JOB; i++) {
+            System.out.println("Creating " + i + "th EntityLockJob..");
+            generateEntityLockThread(txnProvider);
+        }
+
+        for (i = 0; i < MAX_NUM_OF_DATASET_LOCK_JOB; i++) {
+            System.out.println("Creating " + i + "th DatasetLockJob..");
+            generateDatasetLockThread(txnProvider);
+        }
+
+        for (i = 0; i < MAX_NUM_OF_UPGRADE_JOB; i++) {
+            System.out.println("Creating " + i + "th EntityLockUpgradeJob..");
+            generateEntityLockUpgradeThread(txnProvider);
+        }
+    }
+
+    private static void generateEntityLockThread(TransactionSubsystem txnProvider) {
+        Thread t;
+        int childCount = rand.nextInt(MAX_NUM_OF_THREAD_IN_A_JOB);
+        if (MAX_NUM_OF_THREAD_IN_A_JOB != 0 && childCount == 0) {
+            childCount = 1;
+        }
+        TransactionContext txnContext = generateTxnContext(txnProvider);
+
+        for (int i = 0; i < childCount; i++) {
+            System.out.println("Creating " + txnContext.getJobId() + "," + i + "th EntityLockThread..");
+            t = new Thread(new LockRequestProducer(txnProvider.getLockManager(), txnContext, false, false, false));
+            t.start();
+        }
+    }
+
+    private static void generateDatasetLockThread(TransactionSubsystem txnProvider) {
+        Thread t;
+        //        int childCount = rand.nextInt(MAX_NUM_OF_THREAD_IN_A_JOB);
+        //        if (MAX_NUM_OF_THREAD_IN_A_JOB != 0 && childCount == 0) {
+        //            childCount = 1;
+        //        }
+        int childCount = 1;
+
+        TransactionContext txnContext = generateTxnContext(txnProvider);
+
+        for (int i = 0; i < childCount; i++) {
+            System.out.println("Creating " + txnContext.getJobId() + "," + i + "th DatasetLockThread..");
+            t = new Thread(new LockRequestProducer(txnProvider.getLockManager(), txnContext, true, false, false));
+            t.start();
+        }
+    }
+
+    private static void generateEntityLockUpgradeThread(TransactionSubsystem txnProvider) {
+        int i;
+        Thread t;
+        int childCount = MAX_NUM_OF_THREAD_IN_A_JOB;
+        if (MAX_NUM_OF_THREAD_IN_A_JOB != 0 && childCount == 0) {
+            childCount = 1;
+        }
+        TransactionContext txnContext = generateTxnContext(txnProvider);
+
+        for (i = 0; i < childCount - 1; i++) {
+            System.out.println("Creating " + txnContext.getJobId() + "," + i + "th EntityLockUpgradeThread(false)..");
+            t = new Thread(new LockRequestProducer(txnProvider.getLockManager(), txnContext, false, true, false));
+            t.start();
+        }
+        System.out.println("Creating " + txnContext.getJobId() + "," + i + "th EntityLockUpgradeThread(true)..");
+        t = new Thread(new LockRequestProducer(txnProvider.getLockManager(), txnContext, false, true, true));
+        t.start();
+    }
+
+    private static TransactionContext generateTxnContext(TransactionSubsystem txnProvider) {
+        try {
+            return new TransactionContext(new JobId(jobId++), txnProvider);
+        } catch (ACIDException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+}
+
+class LockRequestProducer implements Runnable {
+
+    private static final int MAX_DATASET_NUM = 10;//10
+    private static final int MAX_ENTITY_NUM = 30;//30
+    private static final int MAX_LOCK_MODE_NUM = 2;
+    private static final long DATASET_LOCK_THREAD_SLEEP_TIME = 1000;
+    private static final int MAX_LOCK_REQUEST_TYPE_NUM = 4;
+
+    private ILockManager lockMgr;
+    private TransactionContext txnContext;
+    private Random rand;
+    private boolean isDatasetLock; //dataset or entity
+    private ArrayList<LockRequest> requestQueue;
+    private StringBuilder requestHistory;
+    private int unlockIndex;
+    private int upgradeIndex;
+    private boolean isUpgradeThread;
+    private boolean isUpgradeThreadJob;
+    private boolean isDone;
+
+    public LockRequestProducer(ILockManager lockMgr, TransactionContext txnContext, boolean isDatasetLock,
+            boolean isUpgradeThreadJob, boolean isUpgradeThread) {
+        this.lockMgr = lockMgr;
+        this.txnContext = txnContext;
+        this.isDatasetLock = isDatasetLock;
+        this.isUpgradeThreadJob = isUpgradeThreadJob;
+        this.isUpgradeThread = isUpgradeThread;
+
+        this.rand = new Random(System.currentTimeMillis());
+        requestQueue = new ArrayList<LockRequest>();
+        requestHistory = new StringBuilder();
+        unlockIndex = 0;
+        upgradeIndex = 0;
+        isDone = false;
+    }
+
+    @Override
+    public void run() {
+        try {
+            if (isDatasetLock) {
+                System.out.println("DatasetLockThread(" + Thread.currentThread().getName() + ") is running...");
+                runDatasetLockTask();
+            } else {
+                System.out.println("EntityLockThread(" + Thread.currentThread().getName() + "," + isUpgradeThreadJob
+                        + "," + isUpgradeThread + ") is running...");
+                runEntityLockTask();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            return;
+        } finally {
+
+            /*
+            System.out.println("" + Thread.currentThread().getName() + "\n" + requestHistory.toString() + ""
+                    + Thread.currentThread().getName() + "\n");
+            System.out.println("RequestHistoryPerJobId\n" + ((LockManager) lockMgr).getLocalRequestHistory());
+            System.out.println("");
+            System.out.println("GlobalRequestHistory\n" + ((LockManager) lockMgr).getGlobalRequestHistory());
+            System.out.println("");
+            */
+        }
+    }
+
+    private void runDatasetLockTask() {
+        try {
+            produceDatasetLockRequest();
+            if (isDone) {
+                return;
+            }
+        } catch (ACIDException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        try {
+            Thread.sleep(DATASET_LOCK_THREAD_SLEEP_TIME);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        try {
+            produceDatasetUnlockRequest();
+            if (isDone) {
+                return;
+            }
+        } catch (ACIDException e) {
+            e.printStackTrace();
+            return;
+        }
+    }
+
+    private void runEntityLockTask() {
+        int i;
+        byte lockMode;
+        int lockCount;
+        int upgradeCount;
+        int releaseCount;
+        boolean mayRelease = false;
+
+        lockCount = 1 + rand.nextInt(20);
+        if (isUpgradeThreadJob) {
+            if (isUpgradeThread) {
+                upgradeCount = 1; //rand.nextInt(4) + 1;
+                if (upgradeCount > lockCount) {
+                    upgradeCount = lockCount;
+                }
+            } else {
+                upgradeCount = 0;
+            }
+            lockMode = LockMode.S;
+        } else {
+            upgradeCount = 0;
+            lockMode = (byte) (this.txnContext.getJobId().getId() % 2);
+        }
+        releaseCount = rand.nextInt(5) % 3 == 0 ? 1 : 0;
+
+        //lock
+        for (i = 0; i < lockCount; i++) {
+            try {
+                produceEntityLockRequest(lockMode);
+                if (isDone) {
+                    return;
+                }
+            } catch (ACIDException e) {
+                e.printStackTrace();
+                return;
+            }
+        }
+
+        //upgrade
+        for (i = 0; i < upgradeCount; i++) {
+            try {
+                produceEntityLockUpgradeRequest();
+                if (isDone) {
+                    return;
+                }
+            } catch (ACIDException e) {
+                e.printStackTrace();
+                return;
+            }
+        }
+
+        //unlock or releaseLocks
+        if (releaseCount == 0) {
+            //unlock
+            for (i = 0; i < lockCount; i++) {
+                try {
+                    produceEntityUnlockRequest();
+                    if (isDone) {
+                        return;
+                    }
+                } catch (ACIDException e) {
+                    e.printStackTrace();
+                    return;
+                }
+            }
+        } else {
+            try {
+                synchronized (txnContext) {
+                    if (txnContext.getTxnState() != TransactionState.ABORTED) {
+                        txnContext.setTxnState(TransactionState.ABORTED);
+                        mayRelease = true;
+                    }
+                }
+                if (mayRelease) {
+                    produceEntityReleaseLocksRequest();
+                }
+            } catch (ACIDException e) {
+                e.printStackTrace();
+                return;
+            }
+        }
+    }
+
+    private void produceDatasetLockRequest() throws ACIDException {
+        int requestType = RequestType.LOCK;
+        int datasetId = rand.nextInt(MAX_DATASET_NUM);
+        int entityHashValue = -1;
+        byte lockMode = (byte) (rand.nextInt(MAX_LOCK_MODE_NUM));
+        LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(datasetId),
+                entityHashValue, lockMode, txnContext);
+        requestQueue.add(request);
+        requestHistory.append(request.prettyPrint());
+        sendRequest(request);
+    }
+
+    private void produceDatasetUnlockRequest() throws ACIDException {
+        LockRequest lockRequest = requestQueue.get(0);
+
+        int requestType = RequestType.RELEASE_LOCKS;
+        int datasetId = lockRequest.datasetIdObj.getId();
+        int entityHashValue = -1;
+        byte lockMode = LockMode.S;//lockMode is not used for unlock() call.
+        LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(datasetId),
+                entityHashValue, lockMode, txnContext);
+        requestQueue.add(request);
+        requestHistory.append(request.prettyPrint());
+        sendRequest(request);
+    }
+
+    private void produceEntityLockRequest(byte lockMode) throws ACIDException {
+        int requestType = rand.nextInt(MAX_LOCK_REQUEST_TYPE_NUM);
+        int datasetId = rand.nextInt(MAX_DATASET_NUM);
+        int entityHashValue = rand.nextInt(MAX_ENTITY_NUM);
+        LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(datasetId),
+                entityHashValue, lockMode, txnContext);
+        requestQueue.add(request);
+        requestHistory.append(request.prettyPrint());
+        sendRequest(request);
+    }
+
+    private void produceEntityLockUpgradeRequest() throws ACIDException {
+        LockRequest lockRequest = null;
+        int size = requestQueue.size();
+        boolean existLockRequest = false;
+
+        while (upgradeIndex < size) {
+            lockRequest = requestQueue.get(upgradeIndex++);
+            if (lockRequest.isUpgrade || lockRequest.isTryLockFailed) {
+                continue;
+            }
+            if (lockRequest.requestType == RequestType.UNLOCK || lockRequest.requestType == RequestType.RELEASE_LOCKS
+                    || lockRequest.requestType == RequestType.INSTANT_LOCK
+                    || lockRequest.requestType == RequestType.INSTANT_TRY_LOCK) {
+                continue;
+            }
+            if (lockRequest.lockMode == LockMode.X) {
+                continue;
+            }
+            existLockRequest = true;
+            break;
+        }
+
+        if (existLockRequest) {
+            int requestType = lockRequest.requestType;
+            int datasetId = lockRequest.datasetIdObj.getId();
+            int entityHashValue = lockRequest.entityHashValue;
+            byte lockMode = LockMode.X;
+            LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(
+                    datasetId), entityHashValue, lockMode, txnContext);
+            request.isUpgrade = true;
+            requestQueue.add(request);
+            requestHistory.append(request.prettyPrint());
+            sendRequest(request);
+        }
+    }
+
+    private void produceEntityUnlockRequest() throws ACIDException {
+        LockRequest lockRequest = null;
+        int size = requestQueue.size();
+        boolean existLockRequest = false;
+
+        while (unlockIndex < size) {
+            lockRequest = requestQueue.get(unlockIndex++);
+            if (lockRequest.isUpgrade || lockRequest.isTryLockFailed) {
+                continue;
+            }
+            if (lockRequest.requestType == RequestType.UNLOCK || lockRequest.requestType == RequestType.RELEASE_LOCKS
+                    || lockRequest.requestType == RequestType.INSTANT_LOCK
+                    || lockRequest.requestType == RequestType.INSTANT_TRY_LOCK) {
+                continue;
+            }
+            existLockRequest = true;
+            break;
+        }
+
+        if (existLockRequest) {
+            int requestType = RequestType.UNLOCK;
+            int datasetId = lockRequest.datasetIdObj.getId();
+            int entityHashValue = lockRequest.entityHashValue;
+            byte lockMode = lockRequest.lockMode;
+            LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(
+                    datasetId), entityHashValue, lockMode, txnContext);
+            requestQueue.add(request);
+            requestHistory.append(request.prettyPrint());
+            sendRequest(request);
+        }
+    }
+
+    private void produceEntityReleaseLocksRequest() throws ACIDException {
+        LockRequest lockRequest = null;
+        int size = requestQueue.size();
+        boolean existLockRequest = false;
+
+        while (unlockIndex < size) {
+            lockRequest = requestQueue.get(unlockIndex++);
+            if (lockRequest.isUpgrade || lockRequest.isTryLockFailed) {
+                continue;
+            }
+            if (lockRequest.requestType == RequestType.UNLOCK || lockRequest.requestType == RequestType.RELEASE_LOCKS
+                    || lockRequest.requestType == RequestType.INSTANT_LOCK
+                    || lockRequest.requestType == RequestType.INSTANT_TRY_LOCK) {
+                continue;
+            }
+            existLockRequest = true;
+            break;
+        }
+
+        if (existLockRequest) {
+            int requestType = RequestType.RELEASE_LOCKS;
+            int datasetId = lockRequest.datasetIdObj.getId();
+            int entityHashValue = lockRequest.entityHashValue;
+            byte lockMode = lockRequest.lockMode;
+            LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, new DatasetId(
+                    datasetId), entityHashValue, lockMode, txnContext);
+            requestQueue.add(request);
+            requestHistory.append(request.prettyPrint());
+            sendRequest(request);
+        }
+    }
+
+    private void sendRequest(LockRequest request) throws ACIDException {
+
+        switch (request.requestType) {
+            case RequestType.LOCK:
+                try {
+                    lockMgr.lock(request.datasetIdObj, request.entityHashValue, request.lockMode, request.txnContext);
+                } catch (ACIDException e) {
+                    if (request.txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS) {
+                        if (request.txnContext.getTxnState() != TransactionState.ABORTED) {
+                            request.txnContext.setTxnState(TransactionState.ABORTED);
+                            log("*** " + request.txnContext.getJobId() + " lock request causing deadlock ***");
+                            log("Abort --> Releasing all locks acquired by " + request.txnContext.getJobId());
+                            try {
+                                lockMgr.releaseLocks(request.txnContext);
+                            } catch (ACIDException e1) {
+                                e1.printStackTrace();
+                            }
+                            log("Abort --> Released all locks acquired by " + request.txnContext.getJobId());
+                        }
+                        isDone = true;
+                    } else {
+                        throw e;
+                    }
+                }
+                break;
+            case RequestType.INSTANT_LOCK:
+                try {
+                    lockMgr.instantLock(request.datasetIdObj, request.entityHashValue, request.lockMode,
+                            request.txnContext);
+                } catch (ACIDException e) {
+                    if (request.txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS) {
+                        if (request.txnContext.getTxnState() != TransactionState.ABORTED) {
+                            request.txnContext.setTxnState(TransactionState.ABORTED);
+                            log("*** " + request.txnContext.getJobId() + " lock request causing deadlock ***");
+                            log("Abort --> Releasing all locks acquired by " + request.txnContext.getJobId());
+                            try {
+                                lockMgr.releaseLocks(request.txnContext);
+                            } catch (ACIDException e1) {
+                                e1.printStackTrace();
+                            }
+                            log("Abort --> Released all locks acquired by " + request.txnContext.getJobId());
+                        }
+                        isDone = true;
+                    } else {
+                        throw e;
+                    }
+                }
+                break;
+            case RequestType.TRY_LOCK:
+                request.isTryLockFailed = !lockMgr.tryLock(request.datasetIdObj, request.entityHashValue,
+                        request.lockMode, request.txnContext);
+                break;
+            case RequestType.INSTANT_TRY_LOCK:
+                lockMgr.instantTryLock(request.datasetIdObj, request.entityHashValue, request.lockMode,
+                        request.txnContext);
+                break;
+            case RequestType.UNLOCK:
+                lockMgr.unlock(request.datasetIdObj, request.entityHashValue, request.txnContext);
+                break;
+            case RequestType.RELEASE_LOCKS:
+                lockMgr.releaseLocks(request.txnContext);
+                break;
+            default:
+                throw new UnsupportedOperationException("Unsupported lock method");
+        }
+        try {
+            Thread.sleep((long) 0);
+        } catch (InterruptedException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+    }
+
+    private void log(String s) {
+        System.out.println(s);
+    }
+}
+
+class LockRequest {
+    public int requestType;
+    public DatasetId datasetIdObj;
+    public int entityHashValue;
+    public byte lockMode;
+    public TransactionContext txnContext;
+    public boolean isUpgrade;
+    public boolean isTryLockFailed;
+    public long requestTime;
+    public String threadName;
+
+    public LockRequest(String threadName, int requestType, DatasetId datasetIdObj, int entityHashValue, byte lockMode,
+            TransactionContext txnContext) {
+        this.requestType = requestType;
+        this.datasetIdObj = datasetIdObj;
+        this.entityHashValue = entityHashValue;
+        this.lockMode = lockMode;
+        this.txnContext = txnContext;
+        this.requestTime = System.currentTimeMillis();
+        this.threadName = new String(threadName);
+        isUpgrade = false;
+        isTryLockFailed = false;//used for TryLock request not to call Unlock when the tryLock failed.
+    }
+
+    public LockRequest(String threadName, int requestType) {
+        this.requestType = requestType;
+        this.requestTime = System.currentTimeMillis();
+        this.threadName = new String(threadName);
+    }
+
+    //used for "W" request type
+    public LockRequest(String threadName, int requestType, int waitTime) {
+        this.requestType = requestType;
+        this.requestTime = System.currentTimeMillis();
+        this.threadName = new String(threadName);
+        this.entityHashValue = waitTime;
+    }
+
+    public String prettyPrint() {
+        StringBuilder s = new StringBuilder();
+        //s.append(threadName.charAt(7)).append("\t").append("\t");
+        s.append("T").append(threadName.substring(7)).append("\t");
+        switch (requestType) {
+            case RequestType.LOCK:
+                s.append("L");
+                break;
+            case RequestType.TRY_LOCK:
+                s.append("TL");
+                break;
+            case RequestType.INSTANT_LOCK:
+                s.append("IL");
+                break;
+            case RequestType.INSTANT_TRY_LOCK:
+                s.append("ITL");
+                break;
+            case RequestType.UNLOCK:
+                s.append("UL");
+                break;
+            case RequestType.RELEASE_LOCKS:
+                s.append("RL");
+                break;
+            case RequestType.CHECK_SEQUENCE:
+                s.append("CSQ");
+                return s.toString();
+            case RequestType.CHECK_SET:
+                s.append("CST");
+                return s.toString();
+            case RequestType.END:
+                s.append("END");
+                return s.toString();
+            case RequestType.WAIT:
+                s.append("W").append("\t").append(entityHashValue);
+                return s.toString();
+            default:
+                throw new UnsupportedOperationException("Unsupported method");
+        }
+        s.append("\tJ").append(txnContext.getJobId().getId()).append("\tD").append(datasetIdObj.getId()).append("\tE")
+                .append(entityHashValue).append("\t");
+        switch (lockMode) {
+            case LockMode.S:
+                s.append("S");
+                break;
+            case LockMode.X:
+                s.append("X");
+                break;
+            case LockMode.IS:
+                s.append("IS");
+                break;
+            case LockMode.IX:
+                s.append("IX");
+                break;
+            default:
+                throw new UnsupportedOperationException("Unsupported lock mode");
+        }
+        s.append("\n");
+        return s.toString();
+    }
+}
+
+class RequestType {
+    public static final int LOCK = 0;
+    public static final int TRY_LOCK = 1;
+    public static final int INSTANT_LOCK = 2;
+    public static final int INSTANT_TRY_LOCK = 3;
+    public static final int UNLOCK = 4;
+    public static final int RELEASE_LOCKS = 5;
+    public static final int CHECK_SEQUENCE = 6;
+    public static final int CHECK_SET = 7;
+    public static final int END = 8;
+    public static final int WAIT = 9;
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMatrix.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMatrix.java
deleted file mode 100644
index 651909d..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMatrix.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package edu.uci.ics.asterix.transaction.management.service.locking;
-
-/**
- * @author pouria An implementation of the ILockMatrix Each lock mode is shown
- *         as an integer. More specifically:
- *         - i-th entry of the conflictTable corresponds to the i-th lock mode
- *         and it shows the conflicting mask of that mode. j-th bit of the i-th
- *         entry is 1 if and only if i-th lock mode conflicts with the j-th lock
- *         mode.
- *         - i-th entry of the conversionTable corresponds to the i-th lock mode
- *         and it shows whether going from that mode to a new mode is actually a
- *         conversion or not. j-th bit of the i-th entry is 1 if and only if
- *         j-th lock mode is "stronger" than the i-th mode, i.e. lock changing
- *         from i-th mode to the j-th mode is actually a conversion.
- */
-public class LockMatrix implements ILockMatrix {
-
-    int[] conflictTable;
-    int[] conversionTable;
-
-    public LockMatrix(int[] confTab, int[] convTab) {
-        this.conflictTable = confTab;
-        this.conversionTable = convTab;
-    }
-
-    @Override
-    public boolean conflicts(int reqMask, int lockMode) {
-        return ((reqMask & conflictTable[lockMode]) != 0);
-    }
-
-    @Override
-    public boolean isConversion(int currentLockMode, int reqLockMode) {
-        return ((conversionTable[currentLockMode] & (0x01 << reqLockMode)) != 0);
-    }
-}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestFile b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestFile
new file mode 100644
index 0000000..fc2a883
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestFile
@@ -0,0 +1,20 @@
+T1 L	J1 D1 E1 S
+T3 L	J3 D1 E-1 S
+T2 L	J2 D1 E-1 X
+T4 L	J4 D1 E1 S
+T0 CST	1 3 -1
+T1 L	J1 D1 E2 X
+T0 CST	3 -1
+T3 RL	J3 D1 E-1 S
+T0 CST	1 3 -1
+T1 UL	J1 D1 E1 S
+T0 CST	1 3 -1
+T1 UL	J1 D1 E2 X
+T0 CST	1 2 3 -1
+T3 END
+T1 END
+T2 RL	J2 D1 E-1 X
+T2 END
+T0 CST	4 -1
+T4 UL	J4 D1 E1 S
+T4 END
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java
new file mode 100644
index 0000000..ba47b5a
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java
@@ -0,0 +1,57 @@
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+public class LockRequestTracker {
+    HashMap<Integer, StringBuilder> historyPerJob; //per job
+    StringBuilder historyForAllJobs;
+    StringBuilder requestHistoryForAllJobs; //request only
+
+    public LockRequestTracker() {
+        historyForAllJobs = new StringBuilder();
+        historyPerJob = new HashMap<Integer, StringBuilder>();
+        requestHistoryForAllJobs = new StringBuilder();
+    }
+
+    public void addEvent(String msg, LockRequest request) {
+        int jobId = request.txnContext.getJobId().getId();
+        StringBuilder jobHistory = historyPerJob.get(jobId);
+
+        //update jobHistory
+        if (jobHistory == null) {
+            jobHistory = new StringBuilder();
+        }
+        jobHistory.append(request.prettyPrint()).append("--> ").append(msg).append("\n");
+        historyPerJob.put(jobId, jobHistory);
+
+        //handle global request queue
+        historyForAllJobs.append(request.prettyPrint()).append("--> ").append(msg).append("\n");
+    }
+    
+    public void addRequest(LockRequest request) {
+        requestHistoryForAllJobs.append(request.prettyPrint());
+    }
+
+    public String getHistoryForAllJobs() {
+        return historyForAllJobs.toString();
+    }
+
+    public String getHistoryPerJob() {
+        StringBuilder history = new StringBuilder();
+        Set<Entry<Integer, StringBuilder>> s = historyPerJob.entrySet();
+        Iterator<Entry<Integer, StringBuilder>> iter = s.iterator();
+        while (iter.hasNext()) {
+            Map.Entry<Integer, StringBuilder> entry = (Map.Entry<Integer, StringBuilder>) iter.next();
+            history.append(entry.getValue().toString());
+        }
+        return history.toString();
+    }
+    
+    public String getRequestHistoryForAllJobs() {
+        return requestHistoryForAllJobs.toString();
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java
new file mode 100644
index 0000000..2015aec
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+/**
+ * LockWaiter object is used for keeping a lock waiter or a lock upgrader information on a certain resource.
+ * The resource can be a dataset or an entity. 
+ * @author kisskys
+ *
+ */
+public class LockWaiter {
+    /**
+     * entityInfoSlotNum:
+     * If this LockWaiter object is used, this variable is used to indicate the corresponding EntityInfoSlotNum.
+     * Otherwise, the variable is used for nextFreeSlot Which indicates the next free waiter object.
+     */
+    private int entityInfoSlotNum;
+    private boolean wait;
+    private boolean victim;
+    private byte waiterCount;
+    private boolean firstGetUp;
+    private int nextWaiterObjId; //used for DatasetLockInfo and EntityLockInfo
+    private int nextWaitingResourceObjId; //used for JobInfo
+    private long beginWaitTime;
+    private boolean isWaiter; //is upgrader or waiter
+    private boolean isWaitingOnEntityLock; //is waiting on datasetLock or entityLock
+
+    public LockWaiter() {
+        this.victim = false;
+        this.wait = true;
+        waiterCount = 0;
+        nextWaiterObjId = -1;
+        nextWaitingResourceObjId = -1;
+    }
+
+    public void setEntityInfoSlot(int slotNum) {
+        this.entityInfoSlotNum = slotNum;
+    }
+
+    public int getEntityInfoSlot() {
+        return this.entityInfoSlotNum;
+    }
+
+    public void setNextFreeSlot(int slotNum) {
+        this.entityInfoSlotNum = slotNum;
+    }
+
+    public int getNextFreeSlot() {
+        return this.entityInfoSlotNum;
+    }
+
+    public void setWait(boolean wait) {
+        this.wait = wait;
+    }
+
+    public boolean needWait() {
+        return this.wait;
+    }
+
+    public void setVictim(boolean victim) {
+        this.victim = victim;
+    }
+
+    public boolean isVictim() {
+        return this.victim;
+    }
+    
+    public void increaseWaiterCount() {
+        waiterCount++;
+    }
+    
+    public void decreaseWaiterCount() {
+        waiterCount--;
+    }
+    
+    public byte getWaiterCount() {
+        return waiterCount;
+    }
+    
+    public void setWaiterCount(byte count) {
+        waiterCount = count;
+    }
+    
+    public void setFirstGetUp(boolean isFirst) {
+        firstGetUp = isFirst;
+    }
+    
+    public boolean isFirstGetUp() {
+        return firstGetUp;
+    }
+    
+    public void setNextWaiterObjId(int next) {
+        nextWaiterObjId = next;
+    }
+    
+    public int getNextWaiterObjId() {
+        return nextWaiterObjId;
+    }
+    
+    public void setNextWaitingResourceObjId(int next) {
+        nextWaitingResourceObjId = next;
+    }
+    
+    public int getNextWaitingResourceObjId() {
+        return nextWaitingResourceObjId;
+    }
+    
+    public void setBeginWaitTime(long time) {
+        this.beginWaitTime = time;
+    }
+    
+    public long getBeginWaitTime() {
+        return beginWaitTime;
+    }
+    
+    public boolean isWaiter() {
+        return isWaiter;
+    }
+    
+    public void setWaiter(boolean isWaiter) {
+        this.isWaiter = isWaiter;
+    }
+    
+    public boolean isWaitingOnEntityLock() {
+        return isWaitingOnEntityLock;
+    }
+    
+    public void setWaitingOnEntityLock(boolean isWaitingOnEntityLock) {
+        this.isWaitingOnEntityLock = isWaitingOnEntityLock;
+    }
+    
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java
new file mode 100644
index 0000000..dbe76ff
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java
@@ -0,0 +1,377 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.util.ArrayList;
+
+/**
+ * LockWaiterManager manages LockWaiter objects array.
+ * The array grows when the slots are overflowed.
+ * Also, the array shrinks according to the following shrink policy
+ * : Shrink when the resource under-utilization lasts for a certain threshold time.
+ * 
+ * @author kisskys
+ */
+public class LockWaiterManager {
+
+    public static final int SHRINK_TIMER_THRESHOLD = 120000; //2min
+
+    private ArrayList<ChildLockWaiterArrayManager> pArray; //parent array
+    private int allocChild; //used to allocate the next free LockWaiter object.
+    private long shrinkTimer;
+    private boolean isShrinkTimerOn;
+    private int occupiedSlots;
+
+//    ////////////////////////////////////////////////
+//    // begin of unit test
+//    ////////////////////////////////////////////////
+//
+//    public static final int SHRINK_TIMER_THRESHOLD = 0; //for unit test
+//
+//    /**
+//     * @param args
+//     */
+//    public static void main(String[] args) {
+//        final int DataSize = 5000;
+//
+//        int i, j;
+//        int slots = ChildLockWaiterArrayManager.NUM_OF_SLOTS;
+//        int data[] = new int[DataSize];
+//        LockWaiterManager lwMgr = new LockWaiterManager();
+//
+//        //allocate: 50
+//        System.out.println("allocate: 50");
+//        for (i = 0; i < 5; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                data[j] = lwMgr.allocate();
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //deallocate from the last child to the first child
+//        System.out.println("deallocate from the last child to the first child");
+//        for (i = 4; i >= 0; i--) {
+//            for (j = i * slots + slots - 1; j >= i * slots; j--) {
+//                lwMgr.deallocate(data[j]);
+//            }
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //allocate: 50
+//        System.out.println("allocate: 50");
+//        for (i = 0; i < 5; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                data[j] = lwMgr.allocate();
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //deallocate from the first child to last child
+//        System.out.println("deallocate from the first child to last child");
+//        for (i = 0; i < 5; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                lwMgr.deallocate(data[j]);
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //allocate: 50
+//        System.out.println("allocate: 50");
+//        for (i = 0; i < 5; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                data[j] = lwMgr.allocate();
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //deallocate from the first child to 4th child
+//        System.out.println("deallocate from the first child to 4th child");
+//        for (i = 0; i < 4; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                lwMgr.deallocate(data[j]);
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//
+//        //allocate: 40
+//        System.out.println("allocate: 40");
+//        for (i = 0; i < 4; i++) {
+//            for (j = i * slots; j < i * slots + slots; j++) {
+//                data[j] = lwMgr.allocate();
+//            }
+//
+//            System.out.println(lwMgr.prettyPrint());
+//        }
+//    }
+//
+//    ////////////////////////////////////////////////
+//    // end of unit test
+//    ////////////////////////////////////////////////
+
+    public LockWaiterManager() {
+        pArray = new ArrayList<ChildLockWaiterArrayManager>();
+        pArray.add(new ChildLockWaiterArrayManager());
+        allocChild = 0;
+        occupiedSlots = 0;
+        isShrinkTimerOn = false;
+    }
+
+    public int allocate() {
+        if (pArray.get(allocChild).isFull()) {
+            int size = pArray.size();
+            boolean bAlloc = false;
+            ChildLockWaiterArrayManager child;
+
+            //find a deinitialized child and initialize it
+            for (int i = 0; i < size; i++) {
+                child = pArray.get(i);
+                if (child.isDeinitialized()) {
+                    child.initialize();
+                    allocChild = i;
+                    bAlloc = true;
+                    break;
+                }
+            }
+
+            //allocate new child when there is no deinitialized child
+            if (!bAlloc) {
+                pArray.add(new ChildLockWaiterArrayManager());
+                allocChild = pArray.size() - 1;
+            }
+        }
+        occupiedSlots++;
+        return pArray.get(allocChild).allocate() + allocChild * ChildLockWaiterArrayManager.NUM_OF_SLOTS;
+    }
+
+    void deallocate(int slotNum) {
+        pArray.get(slotNum / ChildLockWaiterArrayManager.NUM_OF_SLOTS).deallocate(
+                slotNum % ChildLockWaiterArrayManager.NUM_OF_SLOTS);
+        occupiedSlots--;
+
+        if (needShrink()) {
+            shrink();
+        }
+    }
+
+    /**
+     * Shrink policy:
+     * Shrink when the resource under-utilization lasts for a certain amount of time.
+     * TODO Need to figure out which of the policies is better
+     * case1.
+     * pArray status : O x x x x x O (O is initialized, x is deinitialized)
+     * In the above status, 'CURRENT' needShrink() returns 'TRUE'
+     * even if there is nothing to shrink or deallocate.
+     * It doesn't distinguish the deinitialized children from initialized children
+     * by calculating totalNumOfSlots = pArray.size() * ChildLockWaiterArrayManager.NUM_OF_SLOTS.
+     * In other words, it doesn't subtract the deinitialized children's slots.
+     * case2.
+     * pArray status : O O x x x x x
+     * However, in the above case, if we subtract the deinitialized children's slots,
+     * needShrink() will return false even if we shrink the pArray at this case.
+     * 
+     * @return
+     */
+    private boolean needShrink() {
+        int size = pArray.size();
+        int usedSlots = occupiedSlots;
+        if (usedSlots == 0) {
+            usedSlots = 1;
+        }
+
+        if (size > 1 && size * ChildLockWaiterArrayManager.NUM_OF_SLOTS / usedSlots >= 3) {
+            if (isShrinkTimerOn) {
+                if (System.currentTimeMillis() - shrinkTimer >= SHRINK_TIMER_THRESHOLD) {
+                    isShrinkTimerOn = false;
+                    return true;
+                }
+            } else {
+                //turn on timer
+                isShrinkTimerOn = true;
+                shrinkTimer = System.currentTimeMillis();
+            }
+        } else {
+            //turn off timer
+            isShrinkTimerOn = false;
+        }
+
+        return false;
+    }
+
+    /**
+     * Shrink() may
+     * deinitialize(:deallocates array of LockWaiter objects in a child) Children(s) or
+     * shrink pArray according to the deinitialized children's contiguity status.
+     * It doesn't deinitialize or shrink more than half of children at a time.
+     */
+    private void shrink() {
+        int i;
+        boolean bContiguous = true;
+        int decreaseCount = 0;
+        int size = pArray.size();
+        int maxDecreaseCount = size / 2;
+        ChildLockWaiterArrayManager child;
+        for (i = size - 1; i >= 0; i--) {
+            child = pArray.get(i);
+            if (child.isEmpty() || child.isDeinitialized()) {
+                if (bContiguous) {
+                    pArray.remove(i);
+                    if (++decreaseCount == maxDecreaseCount) {
+                        break;
+                    }
+                } else {
+                    bContiguous = false;
+                    if (child.isEmpty()) {
+                        child.deinitialize();
+                        if (++decreaseCount == maxDecreaseCount) {
+                            break;
+                        }
+                    }
+                }
+            } else {
+                bContiguous = false;
+            }
+        }
+
+        //reset allocChild when the child is removed or deinitialized.
+        size = pArray.size();
+        if (allocChild >= size || pArray.get(allocChild).isDeinitialized()) {
+            //set allocChild to any initialized one.
+            //It is guaranteed that there is at least one initialized child.
+            for (i = 0; i < size; i++) {
+                if (!pArray.get(i).isDeinitialized()) {
+                    allocChild = i;
+                    break;
+                }
+            }
+        }
+    }
+
+    public String prettyPrint() {
+        StringBuilder s = new StringBuilder("\n########### LockWaiterManager Status #############\n");
+        int size = pArray.size();
+        ChildLockWaiterArrayManager child;
+        LockWaiter waiter;
+
+        for (int i = 0; i < size; i++) {
+            child = pArray.get(i);
+            if (child.isDeinitialized()) {
+                continue;
+            }
+            s.append("child[" + i + "]: occupiedSlots:" + child.getNumOfOccupiedSlots());
+            s.append(" freeSlotNum:" + child.getFreeSlotNum() + "\n");
+            for (int j = 0; j < ChildLockWaiterArrayManager.NUM_OF_SLOTS; j++) {
+                waiter = child.getLockWaiter(j);
+                s.append(j).append(": ");
+                s.append("\t" + waiter.getEntityInfoSlot());
+                s.append("\t" + waiter.needWait());
+                s.append("\t" + waiter.isVictim());
+                s.append("\n");
+            }
+            s.append("\n");
+        }
+        return s.toString();
+    }
+    
+    public LockWaiter getLockWaiter(int slotNum) {
+        return pArray.get(slotNum / ChildLockWaiterArrayManager.NUM_OF_SLOTS).getLockWaiter(
+                slotNum % ChildLockWaiterArrayManager.NUM_OF_SLOTS);
+    }
+}
+
+class ChildLockWaiterArrayManager {
+    public static final int NUM_OF_SLOTS = 100; //number of LockWaiter objects in 'childArray'.
+//    public static final int NUM_OF_SLOTS = 10; //for unit test 
+
+    private int freeSlotNum;
+    private int occupiedSlots; //-1 represents 'deinitialized' state.
+    LockWaiter childArray[];//childArray
+
+    public ChildLockWaiterArrayManager() {
+        initialize();
+    }
+
+    public void initialize() {
+        this.childArray = new LockWaiter[NUM_OF_SLOTS];
+        this.freeSlotNum = 0;
+        this.occupiedSlots = 0;
+
+        for (int i = 0; i < NUM_OF_SLOTS - 1; i++) {
+            childArray[i] = new LockWaiter();
+            childArray[i].setNextFreeSlot(i + 1);
+        }
+        childArray[NUM_OF_SLOTS - 1] = new LockWaiter();
+        childArray[NUM_OF_SLOTS - 1].setNextFreeSlot(-1); //-1 represents EOL(end of link)
+    }
+
+    public LockWaiter getLockWaiter(int slotNum) {
+        return childArray[slotNum];
+    }
+
+    public int allocate() {
+        int currentSlot = freeSlotNum;
+        freeSlotNum = childArray[currentSlot].getNextFreeSlot();
+        childArray[currentSlot].setWait(true);
+        childArray[currentSlot].setVictim(false);
+        childArray[currentSlot].setWaiterCount((byte)0);
+        childArray[currentSlot].setNextWaiterObjId(-1);
+        childArray[currentSlot].setNextWaitingResourceObjId(-1);
+        childArray[currentSlot].setBeginWaitTime(-1l);
+        occupiedSlots++;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName()+"  Alloc LockWaiterId("+currentSlot+")");
+        }
+        return currentSlot;
+    }
+
+    public void deallocate(int slotNum) {
+        childArray[slotNum].setNextFreeSlot(freeSlotNum);
+        freeSlotNum = slotNum;
+        occupiedSlots--;
+        if (LockManager.IS_DEBUG_MODE) {
+            System.out.println(Thread.currentThread().getName()+"  Dealloc LockWaiterId("+slotNum+")");
+        }
+    }
+
+    public void deinitialize() {
+        childArray = null;
+        occupiedSlots = -1;
+    }
+
+    public boolean isDeinitialized() {
+        return occupiedSlots == -1;
+    }
+
+    public boolean isFull() {
+        return occupiedSlots == NUM_OF_SLOTS;
+    }
+
+    public boolean isEmpty() {
+        return occupiedSlots == 0;
+    }
+
+    public int getNumOfOccupiedSlots() {
+        return occupiedSlots;
+    }
+
+    public int getFreeSlotNum() {
+        return freeSlotNum;
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java
new file mode 100644
index 0000000..a65f385
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java
@@ -0,0 +1,592 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.locking;
+
+import java.util.ArrayList;
+
+/**
+ * PrimitiveIntHashMap supports primitive int type as key and value.
+ * The hash map grows when the available slots in a bucket are overflowed.
+ * Also, the hash map shrinks according to the following shrink policy.
+ * : Shrink when the resource under-utilization lasts for a certain threshold time. 
+ *   
+ * @author kisskys
+ *
+ */
+public class PrimitiveIntHashMap {
+    private final int CHILD_BUCKETS; //INIT_NUM_OF_BUCKETS;
+    private final int NUM_OF_SLOTS; //NUM_OF_SLOTS_IN_A_BUCKET;
+    private final int SHRINK_TIMER_THRESHOLD;
+    
+    private int occupiedSlots;
+    private ArrayList<ChildIntArrayManager> pArray; //parent array
+    private int hashMod;
+    private long shrinkTimer;
+    private boolean isShrinkTimerOn;
+    private int iterBucketIndex;
+    private int iterSlotIndex;
+    private int iterChildIndex;
+    private KeyValuePair iterPair;
+
+//    ////////////////////////////////////////////////
+//    // begin of unit test
+//    ////////////////////////////////////////////////
+//
+//    /**
+//     * @param args
+//     */
+//    public static void main(String[] args) {
+//        int i, j;
+//        int k = 0;
+//        int num = 5;
+//        int key[] = new int[500];
+//        int val[] = new int[500];
+//        KeyValuePair pair;
+//        PrimitiveIntHashMap map = new PrimitiveIntHashMap(1<<4, 1<<3, 5);
+//        
+//        for (j=0; j < num; j++) {
+//            
+//            k += 100;
+//            //generate data
+//            for (i=0; i < k; i++) {
+//                key[i] = i;
+//                val[i] = i;
+//            }
+//            
+//            //put data to map
+//            for (i=0; i < k-30; i++) {
+//                map.put(key[i], val[i]);
+//            }
+//            
+//            //put data to map
+//            for (i=0; i < k-30; i++) {
+//                map.put(key[i], val[i]);
+//            }
+//            
+//            map.beginIterate();
+//            pair = map.getNextKeyValue();
+//            i = 0;
+//            while (pair != null) {
+//                i++;
+//                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+//                pair = map.getNextKeyValue();
+//            }
+//            
+//            //System.out.println(map.prettyPrint());
+//            
+//            for (i=k-20; i< k; i++) { //skip X70~X79
+//                map.put(key[i], val[i]);
+//            }
+//            
+//            System.out.println(map.prettyPrint());
+//            
+//            //remove data to map
+//            for (i=0; i < k-10; i++) { 
+//                map.remove(key[i]);
+//                try {
+//                    Thread.currentThread().sleep(1);
+//                } catch (InterruptedException e) {
+//                    e.printStackTrace();
+//                }
+//            }
+//            
+//            map.beginIterate();
+//            pair = map.getNextKeyValue();
+//            i = 0;
+//            while (pair != null) {
+//                i++;
+//                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+//                pair = map.getNextKeyValue();
+//            }
+//            
+//            //remove data to map
+//            for (i=0; i < k-10; i++) { 
+//                map.remove(key[i]);
+//                try {
+//                    Thread.currentThread().sleep(1);
+//                } catch (InterruptedException e) {
+//                    // TODO Auto-generated catch block
+//                    e.printStackTrace();
+//                }
+//            }
+//            
+//            System.out.println(map.prettyPrint());
+//            
+//            //get data from map
+//            for (i=0; i < k; i++) {
+//                System.out.println(""+i+"=> key:"+ key[i] + ", val:"+val[i] +", result: " + map.get(key[i]));  
+//            }
+//        }
+//        
+//        map.beginIterate();
+//        pair = map.getNextKeyValue();
+//        i = 0;
+//        while (pair != null) {
+//            i++;
+//            System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+//            pair = map.getNextKeyValue();
+//        }
+//    }
+//
+//    ////////////////////////////////////////////////
+//    // end of unit test
+//    ////////////////////////////////////////////////
+    
+    public PrimitiveIntHashMap() {
+        CHILD_BUCKETS = 1<<9; //INIT_NUM_OF_BUCKETS;
+        NUM_OF_SLOTS = 1<<3; //NUM_OF_SLOTS_IN_A_BUCKET;
+        SHRINK_TIMER_THRESHOLD = 120000; //2min
+        pArray = new ArrayList<ChildIntArrayManager>();
+        pArray.add(new ChildIntArrayManager(this));
+        hashMod = CHILD_BUCKETS;
+        occupiedSlots = 0;
+        iterPair = new KeyValuePair();
+    }
+    
+    public PrimitiveIntHashMap(int childBuckets, int numOfSlots, int shrinkTimerThreshold) {
+        CHILD_BUCKETS = childBuckets;
+        NUM_OF_SLOTS = numOfSlots;
+        SHRINK_TIMER_THRESHOLD = shrinkTimerThreshold;
+        pArray = new ArrayList<ChildIntArrayManager>();
+        pArray.add(new ChildIntArrayManager(this));
+        hashMod = CHILD_BUCKETS;
+        occupiedSlots = 0;
+        iterPair = new KeyValuePair();
+    }
+    
+    public void put(int key, int value) {
+        int growCount = 0;
+        int bucketNum = hash(key);
+        ChildIntArrayManager child = pArray.get(bucketNum/CHILD_BUCKETS);
+        while (child.isFull(bucketNum%CHILD_BUCKETS)) {
+            growHashMap();
+            bucketNum = hash(key);
+            child = pArray.get(bucketNum/CHILD_BUCKETS);
+            if (growCount > 2) {
+                //changeHashFunc();
+            }
+            growCount++;
+        }
+        occupiedSlots += child.put(bucketNum%CHILD_BUCKETS, key, value, false);
+    }
+    
+    public void upsert (int key, int value) {
+        int growCount = 0;
+        int bucketNum = hash(key);
+        ChildIntArrayManager child = pArray.get(bucketNum/CHILD_BUCKETS);
+        while (child.isFull(bucketNum%CHILD_BUCKETS)) {
+            growHashMap();
+            bucketNum = hash(key);
+            child = pArray.get(bucketNum/CHILD_BUCKETS);
+            if (growCount > 2) {
+                //changeHashFunc();
+            }
+            growCount++;
+        }
+        occupiedSlots += child.put(bucketNum%CHILD_BUCKETS, key, value, true);
+    }
+    
+    private int hash(int key) {
+        return key%hashMod;
+    }
+    
+    private void growHashMap() {
+        int size = pArray.size();
+        int i; 
+        
+        //grow buckets by adding more child
+        for (i=0; i<size; i++) { 
+            pArray.add(new ChildIntArrayManager(this));
+        }
+        
+        //increase hashMod
+        hashMod *= 2;
+        
+        //re-hash
+        rehash(0, size, hashMod/2);
+    }
+    
+    private void shrinkHashMap() {
+        int size = pArray.size();
+        int i;
+        
+        //decrease hashMod
+        hashMod /= 2;
+        
+        //re-hash
+        rehash(size/2, size, hashMod*2);
+        
+        //shrink buckets by removing child(s)
+        for (i=size-1; i>=size/2;i--) {
+            pArray.remove(i);
+        }
+    }
+    
+    private void rehash(int begin, int end, int oldHashMod) {
+        int i, j, k;
+        int key, value;
+        ChildIntArrayManager child;
+        
+        //re-hash
+        for (i=begin; i<end; i++) {
+            child = pArray.get(i);
+            for (j=0; j<CHILD_BUCKETS; j++) {
+                if (child.cArray[j][0] == 0) {
+                    continue;
+                }
+                for (k=1; k<NUM_OF_SLOTS; k++) {
+                    //if the hashValue of the key is different, then re-hash it.
+                    key = child.cArray[j][k*2];
+                    if (hash(key) != key%oldHashMod) {
+                        value = child.cArray[j][k*2+1];
+                        //remove existing key and value
+                        //Notice! To avoid bucket iteration, child.remove() is not used.
+                        child.cArray[j][k*2] = -1;
+                        child.cArray[j][0]--;
+                        //re-hash it 
+                        pArray.get(hash(key)/CHILD_BUCKETS).put(hash(key)%CHILD_BUCKETS, key, value, false);
+                    }
+                }
+            }
+        }
+    }
+    
+//    private void changeHashFunc() {
+//        //TODO need to implement.
+//        throw new UnsupportedOperationException("changeHashFunc() not implemented");
+//    }
+    
+    public int get(int key) {
+        int bucketNum = hash(key);
+        return pArray.get(bucketNum/CHILD_BUCKETS).get(bucketNum%CHILD_BUCKETS, key);
+    }
+    
+    public void remove(int key) {
+        int bucketNum = hash(key);
+        occupiedSlots -= pArray.get(bucketNum/CHILD_BUCKETS).remove(bucketNum%CHILD_BUCKETS, key);
+        
+        if (needShrink()) {
+            shrinkHashMap();
+        }
+    }
+    
+    /**
+     * Shrink policy:
+     * Shrink when the resource under-utilization lasts for a certain amount of time. 
+     * @return
+     */
+    private boolean needShrink() {
+        int size = pArray.size();
+        int usedSlots = occupiedSlots;
+        if (usedSlots == 0) {
+            usedSlots = 1;
+        }
+        if (size > 1 && size*CHILD_BUCKETS*NUM_OF_SLOTS/usedSlots >= 3 && isSafeToShrink()) {
+            if (isShrinkTimerOn) {
+                if (System.currentTimeMillis() - shrinkTimer >= SHRINK_TIMER_THRESHOLD) {
+                    isShrinkTimerOn = false;
+                    return true;
+                }
+            } else {
+                //turn on timer
+                isShrinkTimerOn = true;
+                shrinkTimer = System.currentTimeMillis();
+            }
+        } else {
+            //turn off timer
+            isShrinkTimerOn = false;
+        }
+        return false;
+    }
+    
+    private boolean isSafeToShrink() {
+        int i, j;
+        int size = pArray.size();
+        //Child: 0, 1, 2, 3, 4, 5, 6, 7 
+        //[HChild(Head Child):0 and TChild(Tail Child): 4], [1(H),5(T)], [2(H),6(T)] and so on. 
+        //When the map shrinks, the sum of occupied slots in H/TChild should not exceed the NUM_OF_SLOTS-1.
+        //Then it is safe to shrink. Otherwise, unsafe.
+        ChildIntArrayManager HChild, TChild; 
+        
+        for (i=0; i<size/2; i++){
+            HChild = pArray.get(i);
+            TChild = pArray.get(size/2+i);
+            for (j=0; j<CHILD_BUCKETS; j++) {
+                if (HChild.cArray[j][0] + TChild.cArray[j][0] > NUM_OF_SLOTS-1) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+    
+    public String prettyPrint() {
+        StringBuilder s = new StringBuilder("\n########### PrimitiveIntHashMap Status #############\n");
+        ChildIntArrayManager child;
+        int i, j, k;
+        int size = pArray.size();
+        for (i=0; i<size;i++) {
+            child = pArray.get(i);
+            s.append("child[").append(i).append("]\n");
+            for (j=0; j<CHILD_BUCKETS;j++) {
+                s.append(j).append(" ");
+                for (k=0; k<NUM_OF_SLOTS;k++) {
+                    s.append("[").append(child.cArray[j][k*2]).append(",").append(child.cArray[j][k*2+1]).append("] ");
+                }
+                s.append("\n");
+            }
+        }
+        return s.toString();
+    }
+    
+    public int getNumOfSlots() {
+        return NUM_OF_SLOTS;
+    }
+    
+    public int getNumOfChildBuckets() {
+        return CHILD_BUCKETS;
+    }
+    
+    public void clear(boolean needShrink) {
+        int size = pArray.size();
+        for (int i=size-1; i >= 0; i--) {
+            if (needShrink && i != 0) {
+                pArray.remove(i);
+            } else {
+                pArray.get(i).clear();
+            }
+        }
+        occupiedSlots = 0;
+    }
+    
+    ///////////////////////////////////////
+    // iterate method
+    ///////////////////////////////////////
+    
+    public void beginIterate() {
+        iterChildIndex = 0;
+        iterBucketIndex = 0;
+        iterSlotIndex = 1;
+    }
+    
+    public KeyValuePair getNextKeyValue() {
+        for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
+            for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
+                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                    continue;
+                }
+                for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    if (iterPair.key == -1) {
+                        continue;
+                    }
+                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2+1];
+                    iterSlotIndex++;
+                    return iterPair;
+                }
+            }
+        }
+        return null;
+    }
+    
+    public int getNextKey() {
+        for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
+            for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
+                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                    continue;
+                }
+                for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    if (iterPair.key == -1) {
+                        continue;
+                    }
+                    iterSlotIndex++;
+                    return iterPair.key;
+                }
+            }
+        }
+        return -1;
+    }
+    
+    public int getNextValue() {
+        for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
+            for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
+                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                    continue;
+                }
+                for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    if (iterPair.key == -1) {
+                        continue;
+                    }
+                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2+1];
+                    iterSlotIndex++;
+                    return iterPair.value;
+                }
+            }
+        }
+        return -1;
+    }
+    
+    public static class KeyValuePair {
+        public int key;
+        public int value; 
+    }
+}
+
+class ChildIntArrayManager {
+    private final int DIM1_SIZE; 
+    private final int DIM2_SIZE; 
+    private final int NUM_OF_SLOTS;
+    public int[][] cArray; //child array
+    
+    public ChildIntArrayManager(PrimitiveIntHashMap parentHashMap) {
+        DIM1_SIZE = parentHashMap.getNumOfChildBuckets();
+        DIM2_SIZE = parentHashMap.getNumOfSlots() * 2; //2: Array of [key, value] pair
+        NUM_OF_SLOTS = parentHashMap.getNumOfSlots() ;
+        initialize();
+    }
+
+    private void initialize() {
+        cArray = new int[DIM1_SIZE][DIM2_SIZE];
+        int i, j;
+        for (i = 0; i < DIM1_SIZE; i++) {
+            //cArray[i][0] is used as a counter to count how many slots are used in this bucket.
+            //cArray[i][1] is not used.
+            cArray[i][0] = 0;
+            for (j = 1; j < NUM_OF_SLOTS; j++) {
+                cArray[i][j*2] = -1; // -1 represent that the slot is empty
+            }
+        }
+    }
+    
+    public void clear() {
+        int i, j;
+        for (i = 0; i < DIM1_SIZE; i++) {
+            //cArray[i][0] is used as a counter to count how many slots are used in this bucket.
+            //cArray[i][1] is not used.
+            if (cArray[i][0] == 0) {
+                continue;
+            }
+            cArray[i][0] = 0;
+            for (j = 1; j < NUM_OF_SLOTS; j++) {
+                cArray[i][j*2] = -1; // -1 represent that the slot is empty
+            }
+        }
+    }
+    
+    public void deinitialize() {
+        cArray = null;
+    }
+    
+    public void allocate() {
+        initialize();
+    }
+
+    public boolean isFull(int bucketNum) {
+        return cArray[bucketNum][0] == NUM_OF_SLOTS-1;
+    }
+    
+    public boolean isEmpty(int bucketNum) {
+        return cArray[bucketNum][0] == 0;
+    }
+
+    /**
+     * Put key,value into a slot in the bucket if the key doesn't exist.
+     * Update value if the key exists and if isUpsert is true
+     * No need to call get() to check the existence of the key before calling put().
+     * Notice! Caller should make sure that there is an available slot.
+     * 
+     * @param bucketNum
+     * @param key
+     * @param value
+     * @param isUpsert
+     * @return 1 for new insertion, 0 for key duplication 
+     */
+    public int put(int bucketNum, int key, int value, boolean isUpsert) {
+        int i;
+        int emptySlot=-1;
+
+        if (cArray[bucketNum][0] == 0) {
+            cArray[bucketNum][2] = key;
+            cArray[bucketNum][3] = value;
+            cArray[bucketNum][0]++;
+            return 1;
+        }
+
+        for (i = 1; i < NUM_OF_SLOTS; i++) {
+            if (cArray[bucketNum][i*2] == key) {
+                if (isUpsert) {
+                    cArray[bucketNum][i*2+1] = value;
+                }
+                return 0;
+            }
+            else if (cArray[bucketNum][i*2] == -1) {
+                emptySlot = i;
+            }
+        }
+        
+        if (emptySlot == -1) {
+            throw new UnsupportedOperationException("error");
+        }
+        
+        cArray[bucketNum][emptySlot*2] = key;
+        cArray[bucketNum][emptySlot*2+1] = value;
+        cArray[bucketNum][0]++;
+        return 1;
+    }
+
+    public int get(int bucketNum, int key) {
+        int i;
+        
+        if (cArray[bucketNum][0] == 0) {
+            return -1;
+        }
+
+        for (i = 1; i < NUM_OF_SLOTS; i++) {
+            if (cArray[bucketNum][i*2] == key) {
+                return cArray[bucketNum][i*2+1];
+            }
+        }
+        return -1;
+    }
+    
+    /**
+     * remove key if it exists. Otherwise, ignore it.
+     * @param bucketNum
+     * @param key
+     * @return 1 for success, 0 if the key doesn't exist 
+     */
+    public int remove(int bucketNum, int key) {
+        int i;
+        
+        if (cArray[bucketNum][0] == 0) {
+            return 0;
+        }
+
+        for (i = 1; i < NUM_OF_SLOTS; i++) {
+            if (cArray[bucketNum][i*2] == key) {
+                cArray[bucketNum][i*2] = -1;
+                cArray[bucketNum][0]--;
+                return 1;
+            }
+        }
+        
+        return 0;
+    }
+}
+
+
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
index 6c391f4..6bc8c6b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
@@ -3,10 +3,10 @@
 import java.util.LinkedList;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
 /**
- * @author pouria Any transaction which has been waiting for a lock for more
+ * @author pouria, kisskys
+ *         Any transaction which has been waiting for a lock for more
  *         than the predefined time-out threshold is considered to be deadlocked
  *         (this can happen in distributed case for example) An instance of this
  *         class triggers scanning (sweeping) lock manager's transactions table
@@ -15,14 +15,14 @@
 
 public class TimeOutDetector {
     static final long TIME_OUT_THRESHOLD = 60000;
-    static final long SWEEP_PERIOD = 120000;
+    static final long SWEEP_PERIOD = 10000;//120000;
 
     LockManager lockMgr;
     Thread trigger;
-    LinkedList<WaitEntry> victimsWObjs;
+    LinkedList<LockWaiter> victimList;
 
     public TimeOutDetector(LockManager lockMgr) {
-        this.victimsWObjs = new LinkedList<WaitEntry>();
+        this.victimList = new LinkedList<LockWaiter>();
         this.lockMgr = lockMgr;
         this.trigger = new Thread(new TimeoutTrigger(this));
         trigger.setDaemon(true);
@@ -30,33 +30,29 @@
     }
 
     public void sweep() throws ACIDException {
-        victimsWObjs.clear();
-        lockMgr.sweepForTimeout(); // Initiates the time-out sweeping process
-                                   // from the lockManager
+        victimList.clear();
+        // Initiates the time-out sweeping process
+        // from the lockManager
+        lockMgr.sweepForTimeout();
         notifyVictims();
     }
 
-    public boolean isVictim(TxrInfo txrInfo) {
-        long sWTime = txrInfo.getStartWaitTime();
-        int status = txrInfo.getContext().getStatus();
-        return (status != TransactionContext.TIMED_OUT_SATUS && sWTime != TransactionContext.INVALID_TIME && (System
-                .currentTimeMillis() - sWTime) >= TIME_OUT_THRESHOLD);
-    }
-
-    public void addToVictimsList(WaitEntry wEntry) {
-        victimsWObjs.add(wEntry);
+    public void checkAndSetVictim(LockWaiter waiterObj) {
+        if (System.currentTimeMillis() - waiterObj.getBeginWaitTime() >= TIME_OUT_THRESHOLD) {
+            waiterObj.setVictim(true);
+            waiterObj.setWait(false);
+            victimList.add(waiterObj);
+        }
     }
 
     private void notifyVictims() {
-        for (WaitEntry w : victimsWObjs) {
-            synchronized (w) {
-                w.wakeUp();
-                w.notifyAll();
+        for (LockWaiter waiterObj : victimList) {
+            synchronized (waiterObj) {
+                waiterObj.notifyAll();
             }
         }
-        victimsWObjs.clear();
+        victimList.clear();
     }
-
 }
 
 class TimeoutTrigger implements Runnable {
@@ -79,9 +75,6 @@
             } catch (ACIDException e) {
                 throw new IllegalStateException(e);
             }
-
         }
-
     }
-
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TxrInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TxrInfo.java
deleted file mode 100644
index 097c3ec..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TxrInfo.java
+++ /dev/null
@@ -1,130 +0,0 @@
-package edu.uci.ics.asterix.transaction.management.service.locking;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Iterator;
-
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-
-/**
- * @author pouria An instance shows information about all the locks a specific
- *         transaction is holding and/or is waiting on (whether for conversion
- *         or as a regular waiter) (Each TInfo instance in the infoList captures
- *         information about one lock on one resource)
- *         If the transaction is waiting for a lock on a specific resource, the
- *         ID of that resource is captured in waitingOnRid
- */
-
-public class TxrInfo {
-    public static final int NOT_FOUND = -2;
-    public static final int NOT_KNOWN_IX = -3;
-
-    private ArrayList<TInfo> infoList;
-    private byte[] waitingOnRid;
-    private TransactionContext context;
-
-    public TxrInfo(TransactionContext context) {
-        this.context = context;
-        this.infoList = new ArrayList<TInfo>();
-        this.waitingOnRid = null;
-    }
-
-    public TInfo getTxrInfo(byte[] resourceId, int lMode, int eix) {
-        if (eix == NOT_KNOWN_IX) {
-            eix = findInList(resourceId, lMode);
-        }
-
-        if (eix != NOT_FOUND) {
-            return infoList.get(eix);
-        }
-        return null;
-    }
-
-    public void addGrantedLock(byte[] resourceId, int lMode) {
-        int eix = findInList(resourceId, lMode);
-        if (eix == NOT_FOUND) { // We do not add a redundant lock here
-            infoList.add(new TInfo(resourceId, lMode));
-        }
-    }
-
-    public void removeLock(byte[] resourceId, int lMode, int eix) {
-        if (eix == NOT_KNOWN_IX) {
-            eix = findInList(resourceId, lMode);
-        }
-        if (eix != NOT_FOUND) {
-            infoList.remove(eix);
-        }
-    }
-
-    public TransactionContext getContext() {
-        return context;
-    }
-
-    public void setWaitOnRid(byte[] resourceId) {
-        this.waitingOnRid = null;
-        if (resourceId != null) {
-            this.waitingOnRid = Arrays.copyOf(resourceId, resourceId.length);
-        }
-
-    }
-
-    public byte[] getWaitOnRid() {
-        return this.waitingOnRid;
-    }
-
-    public long getStartWaitTime() {
-        return this.context.getStartWaitTime();
-    }
-
-    public int getSize() {
-        return infoList.size();
-    }
-
-    public int findInList(byte[] resourceId, int lMode) {
-        for (int i = 0; i < infoList.size(); i++) {
-            TInfo ti = infoList.get(i);
-            if (((lMode == LockInfo.ANY_LOCK_MODE) || (lMode == ti.getMode()))
-                    && Arrays.equals(ti.getResourceId(), resourceId)) {
-                return i;
-            }
-        }
-        return NOT_FOUND;
-    }
-
-    public Iterator<TInfo> getIterator() { // TODO change the direct way of
-        // accessing
-        return infoList.iterator();
-    }
-}
-
-class TInfo {
-    private byte[] resourceId; // The resource on which the lock is held or is
-                               // waiting to be held
-    private int lockMode; // The granted/waiting-for lockMode
-
-    public TInfo(byte[] rId, int lMode) {
-        this.resourceId = rId;
-        this.lockMode = lMode;
-    }
-
-    public byte[] getResourceId() {
-        return this.resourceId;
-    }
-
-    public int getMode() {
-        return lockMode;
-    }
-
-    public void setMode(int mode) {
-        lockMode = mode;
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (o == null || !(o instanceof TInfo)) {
-            return false;
-        }
-        TInfo t = (TInfo) o;
-        return ((t.lockMode == lockMode) && (Arrays.equals(t.resourceId, resourceId)));
-    }
-}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
index 41a2a52..91ce7ed5 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
@@ -47,4 +47,24 @@
         return bytes;
     }
 
+    public static long byteArrayToLong(byte[] bytes, int offset) {
+        return ((bytes[offset] & 0xff) << 56) + ((bytes[offset + 1] & 0xff) << 48) + ((bytes[offset + 2] & 0xff) << 40)
+                + ((bytes[offset + 3] & 0xff) << 32) + ((bytes[offset + 4] & 0xff) << 24)
+                + ((bytes[offset + 5] & 0xff) << 16) + ((bytes[offset + 6] & 0xff) << 8)
+                + ((bytes[offset + 7] & 0xff) << 0);
+    }
+
+    public static byte[] longToByteArray(long value) {
+        byte[] bytes = new byte[8];
+        bytes[0] = (byte) ((value >>> 56) & 0xFF);
+        bytes[1] = (byte) ((value >>> 48) & 0xFF);
+        bytes[2] = (byte) ((value >>> 40) & 0xFF);
+        bytes[3] = (byte) ((value >>> 32) & 0xFF);
+        bytes[4] = (byte) ((value >>> 24) & 0xFF);
+        bytes[5] = (byte) ((value >>> 16) & 0xFF);
+        bytes[6] = (byte) ((value >>> 8) & 0xFF);
+        bytes[7] = (byte) ((value >>> 0) & 0xFF);
+        return bytes;
+    }
+
 }
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java
index d3cb2d1..4319b8b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java
@@ -36,7 +36,7 @@
         this.filePath = filePath;
         this.nextWritePosition = offset;
         buffer = ByteBuffer.allocate(size);
-        raf = new RandomAccessFile(new File(filePath), "rws");
+        raf = new RandomAccessFile(new File(filePath), "rw");
         raf.seek(offset);
         fileChannel = raf.getChannel();
         fileChannel.read(buffer);
@@ -75,6 +75,7 @@
         buffer.position(0);
         buffer.limit(size);
         fileChannel.write(buffer);
+        fileChannel.force(true);
         erase();
     }
 
@@ -125,9 +126,9 @@
     @Override
     public void reset(String filePath, long nextWritePosition, int size) throws IOException {
         if (!filePath.equals(this.filePath)) {
-            raf.close();
+            raf.close();//required?
             fileChannel.close();
-            raf = new RandomAccessFile(filePath, "rws");
+            raf = new RandomAccessFile(filePath, "rw");
             this.filePath = filePath;
         }
         this.nextWritePosition = nextWritePosition;
@@ -138,6 +139,23 @@
         buffer.limit(size);
         this.size = size;
     }
+    
+    @Override
+    public void close() throws IOException {
+        fileChannel.close();
+    }
+    
+    @Override
+    public void open(String filePath, long offset, int size) throws IOException {
+        raf = new RandomAccessFile(filePath, "rw");
+        this.nextWritePosition = offset;
+        fileChannel = raf.getChannel();
+        fileChannel.position(offset);
+        erase();
+        buffer.position(0);
+        buffer.limit(size);
+        this.size = size;
+    }
 
     public long getNextWritePosition() {
         return nextWritePosition;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java
index a0620f5..e1f9f95 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java
@@ -35,4 +35,8 @@
 
     public void setNextWritePosition(long writePosition);
 
+    public void close() throws IOException;
+    
+    public void open(String filePath, long offset, int size) throws IOException;
+
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java
index 437c92b..991de1b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java
@@ -23,7 +23,7 @@
  */
 public interface ILogCursor {
 
-    public boolean next(LogicalLogLocator next) throws IOException, ACIDException;
+    public boolean next(LogicalLogLocator currentLogLocator) throws IOException, ACIDException;
 
     public ILogFilter getLogFilter();
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java
index 1158029..c629d03 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java
@@ -15,51 +15,30 @@
 package edu.uci.ics.asterix.transaction.management.service.logging;
 
 import java.io.IOException;
-import java.util.Map;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public interface ILogManager {
 
     /**
-     * An API to write a log record.
-     * 
-     * @param logicalLogLocator
-     *            A reusable object passed in by the caller. When the call
-     *            returns, this object has the physical location of the log
-     *            record that was written.
-     * @param context
-     *            the transaction context associated with the transaction that
-     *            is writing the log record
-     * @param resourceMgrId
-     *            the unique identifier of the resource manager that would be
-     *            handling (interpreting) the log record if there is a need to
-     *            process and apply the log record during a redo/undo task.
-     * @param pageId
-     *            the unique identifier of the page where the operation
-     *            corresponding to the log record is applied
      * @param logType
-     *            the type of log record (@see LogType)
-     * @param logActionType
-     *            the action that needs to be taken when processing the log
-     *            record (@see LogActionType)
-     * @param length
-     *            the length of the content inside the log record. This does not
-     *            include the header or the checksum size.
+     * @param context
+     * @param datasetId
+     * @param PKHashValue
+     * @param resourceId
+     * @param resourceMgrId
+     * @param logContentSize
+     * @param reusableLogContentObject
      * @param logger
-     *            an implementation of the @see ILogger interface that is
-     *            invoked by the ILogManager instance to get the actual content
-     *            for the log record.
-     * @param loggerArguments
-     *            Represent any additional arguments that needs to be passed
-     *            back in the call the to ILogger interface APIs.
+     * @param logicalLogLocator
      * @throws ACIDException
      */
-    public void log(LogicalLogLocator logicalLogLocator, TransactionContext context, byte resourceMgrId, long pageId,
-            byte logType, byte logActionType, int length, ILogger logger, Map<Object, Object> loggerArguments)
-            throws ACIDException;
+    void log(byte logType, TransactionContext context, int datasetId, int PKHashValue, long resourceId,
+            byte resourceMgrId, int logContentSize, ReusableLogContentObject reusableLogContentObject, ILogger logger,
+            LogicalLogLocator logicalLogLocator) throws ACIDException;
 
     /**
      * @param physicalLogLocator
@@ -85,13 +64,12 @@
     public ILogCursor readLog(ILogFilter logFilter) throws ACIDException;
 
     /**
+     * @param logicalLogLocator TODO
      * @param PhysicalLogLocator
      *            specifies the location of the log record to be read
-     * @return LogicalLogLocator represents the in-memory location of the log
-     *         record that has been fetched
      * @throws ACIDException
      */
-    public LogicalLogLocator readLog(PhysicalLogLocator physicalLogLocator) throws ACIDException;
+    public void readLog(long lsnValue, LogicalLogLocator logicalLogLocator) throws ACIDException;
 
     /**
      * Flushes the log records up to the lsn represented by the
@@ -123,8 +101,8 @@
      * Returns the Transaction Provider associated with this ILogManager
      * instance
      * 
-     * @return TransactionProvider
+     * @return TransactionSubsystem
      */
-    public TransactionProvider getTransactionProvider();
+    public TransactionSubsystem getTransactionSubsystem();
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java
index ab4bfea..80f74cb 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java
@@ -25,38 +25,41 @@
 
 public interface ILogRecordHelper {
 
-    public byte getLogType(LogicalLogLocator logicalLogLocator);
+    byte getLogType(LogicalLogLocator logicalLogLocator);
 
-    public int getLogLength(LogicalLogLocator logicalLogLocator);
+    int getJobId(LogicalLogLocator logicalLogLocator);
 
-    public long getLogTimestamp(LogicalLogLocator logicalLogLocator);
+    int getDatasetId(LogicalLogLocator logicalLogLocator);
 
-    public long getLogChecksum(LogicalLogLocator logicalLogLocator);
+    int getPKHashValue(LogicalLogLocator logicalLogLocator);
 
-    public long getLogTransactionId(LogicalLogLocator logicalLogLocator);
+    PhysicalLogLocator getPrevLSN(LogicalLogLocator logicalLogLocator);
 
-    public byte getResourceMgrId(LogicalLogLocator logicalLogLocator);
+    boolean getPrevLSN(PhysicalLogLocator physicalLogLocator, LogicalLogLocator logicalLogLocator);
+    
+    long getResourceId(LogicalLogLocator logicalLogLocator);
+    
+    byte getResourceMgrId(LogicalLogLocator logicalLogLocater);
 
-    public long getPageId(LogicalLogLocator logicalLogLocator);
+    int getLogContentSize(LogicalLogLocator logicalLogLocater);
 
-    public int getLogContentBeginPos(LogicalLogLocator logicalLogLocator);
+    long getLogChecksum(LogicalLogLocator logicalLogLocator);
 
-    public int getLogContentEndPos(LogicalLogLocator logicalLogLocator);
+    int getLogContentBeginPos(LogicalLogLocator logicalLogLocator);
 
-    public String getLogRecordForDisplay(LogicalLogLocator logicalLogLocator);
+    int getLogContentEndPos(LogicalLogLocator logicalLogLocator);
 
-    public byte getLogActionType(LogicalLogLocator logicalLogLocator);
+    String getLogRecordForDisplay(LogicalLogLocator logicalLogLocator);
 
-    public PhysicalLogLocator getPreviousLsnByTransaction(LogicalLogLocator logicalLogLocator);
+    void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, TransactionContext context, int datasetId,
+            int PKHashValue, long prevLogicalLogLocator, long resourceId, byte resourceMgrId, int logRecordSize);
 
-    public boolean getPreviousLsnByTransaction(PhysicalLogLocator physicalLogLocator,
-            LogicalLogLocator logicalLogLocator);
+    boolean validateLogRecord(LogicalLogLocator logicalLogLocator);
 
-    public void writeLogHeader(TransactionContext context, LogicalLogLocator logicalLogLocator, byte resourceMgrId,
-            long pageId, byte logType, byte logActionType, int logContentSize, long prevLsnValue);
+    int getLogRecordSize(byte logType, int logBodySize);
 
-    public void writeLogTail(LogicalLogLocator logicalLogLocator, ILogManager logManager);
+    int getLogHeaderSize(byte logType);
 
-    public boolean validateLogRecord(LogManagerProperties logManagerProperties, LogicalLogLocator logicalLogLocator);
+    int getLogChecksumSize();
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java
index 92984cb..e26a3cc 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java
@@ -14,9 +14,9 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.logging;
 
-import java.util.Map;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
 /**
@@ -25,11 +25,11 @@
  */
 public interface ILogger {
 
-    public void preLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException;
+    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException;
 
-    public void log(TransactionContext context, final LogicalLogLocator logicalLogLocator, int logRecordSize,
-            Map<Object, Object> loggerArguments) throws ACIDException;
+    public void log(TransactionContext context, final LogicalLogLocator logicalLogLocator, int logContentSize,
+            ReusableLogContentObject reusableLogContentObject) throws ACIDException;
 
-    public void postLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException;
+    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException;
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
new file mode 100644
index 0000000..d69a36e
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
@@ -0,0 +1,273 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.service.logging;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+import edu.uci.ics.hyracks.storage.am.common.tuples.SimpleTupleWriter;
+
+public class IndexLogger implements ILogger, ICloseable {
+
+    private final Map<Object, Object> jobId2ReusableLogContentObjectRepositoryMap = new ConcurrentHashMap<Object, Object>();
+
+    public static final String TREE_INDEX = "TREE_INDEX";
+    public static final String TUPLE_REFERENCE = "TUPLE_REFERENCE";
+    public static final String TUPLE_WRITER = "TUPLE_WRITER";
+    public static final String INDEX_OPERATION = "INDEX_OPERATION";
+    public static final String RESOURCE_ID = "RESOURCE_ID";
+
+    private final long resourceId;
+    private final byte resourceType;
+    private final SimpleTupleWriter tupleWriter;
+
+    public class BTreeOperationCodes {
+        public static final byte INSERT = 0;
+        public static final byte DELETE = 1;
+    }
+
+    public IndexLogger(long resourceId, byte resourceType, IIndex index) {
+        this.resourceId = resourceId;
+        this.resourceType = resourceType;
+        this.tupleWriter = new SimpleTupleWriter();
+    }
+
+    public synchronized void close(TransactionContext context) {
+        ReusableLogContentObjectRepository txnThreadStateRepository = (ReusableLogContentObjectRepository) jobId2ReusableLogContentObjectRepositoryMap
+                .get(context.getJobId());
+        txnThreadStateRepository.remove(Thread.currentThread().getId());
+        jobId2ReusableLogContentObjectRepositoryMap.remove(context.getJobId());
+    }
+
+    public void generateLogRecord(TransactionSubsystem txnSubsystem, TransactionContext context, int datasetId,
+            int PKHashValue, long resourceId, IndexOperation newOperation, ITupleReference newValue,
+            IndexOperation oldOperation, ITupleReference oldValue) throws ACIDException {
+
+        if (this.resourceId != resourceId) {
+            throw new ACIDException("IndexLogger mistach");
+        }
+
+        context.addCloseableResource(this); // the close method would be called
+        // on this TreeLogger instance at
+        // the time of transaction
+        // commit/abort.
+        if (newOperation != IndexOperation.INSERT && newOperation != IndexOperation.DELETE) {
+            throw new ACIDException("Loging for Operation " + newOperation + " not supported");
+        }
+
+        ReusableLogContentObject reusableLogContentObject = null;
+        ReusableLogContentObjectRepository reusableLogContentObjectRepository = null;
+        reusableLogContentObjectRepository = (ReusableLogContentObjectRepository) jobId2ReusableLogContentObjectRepositoryMap
+                .get(context.getJobId());
+        if (reusableLogContentObjectRepository == null) {
+            synchronized (context) { // threads belonging to different
+                // transaction do not need to
+                // synchronize amongst them.
+                if (reusableLogContentObjectRepository == null) {
+                    reusableLogContentObjectRepository = new ReusableLogContentObjectRepository();
+                    jobId2ReusableLogContentObjectRepositoryMap.put(context.getJobId(),
+                            reusableLogContentObjectRepository);
+                }
+            }
+        }
+
+        reusableLogContentObject = reusableLogContentObjectRepository.getObject(Thread.currentThread().getId());
+        if (reusableLogContentObject == null) {
+            LogicalLogLocator logicalLogLocator = LogUtil.getDummyLogicalLogLocator(txnSubsystem.getLogManager());
+            reusableLogContentObject = new ReusableLogContentObject(logicalLogLocator, newOperation, newValue,
+                    oldOperation, oldValue);
+            reusableLogContentObjectRepository.putObject(Thread.currentThread().getId(), reusableLogContentObject);
+        } else {
+            reusableLogContentObject.setNewOperation(newOperation);
+            reusableLogContentObject.setNewValue(newValue);
+            reusableLogContentObject.setOldOperation(oldOperation);
+            reusableLogContentObject.setOldValue(oldValue);
+        }
+
+        int logContentSize = 4/*TupleFieldCount*/+ 1/*NewOperation*/+ 4/*newValueLength*/;
+        if (newValue != null) {
+            logContentSize += tupleWriter.bytesRequired(newValue);
+        }
+
+        logContentSize += 1/*OldOperation*/+ 4/*oldValueLength*/;
+        if (oldValue != null) {
+            logContentSize += tupleWriter.bytesRequired(oldValue);
+        }
+
+        txnSubsystem.getLogManager().log(LogType.UPDATE, context, datasetId, PKHashValue, resourceId, resourceType,
+                logContentSize, reusableLogContentObject, this, reusableLogContentObject.getLogicalLogLocator());
+    }
+
+    @Override
+    public void log(TransactionContext context, LogicalLogLocator logicalLogLocator, int logContentSize,
+            ReusableLogContentObject reusableLogContentObject) throws ACIDException {
+        int offset = 0;
+        int tupleSize = 0;
+
+        //tuple field count
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + offset, reusableLogContentObject
+                .getNewValue().getFieldCount());
+        offset += 4;
+
+        //new operation
+        (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + offset,
+                (byte) reusableLogContentObject.getNewOperation().ordinal());
+        offset += 1;
+
+        //new tuple size
+        if (reusableLogContentObject.getNewValue() != null) {
+            tupleSize = tupleWriter.bytesRequired(reusableLogContentObject.getNewValue());
+        }
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + offset, tupleSize);
+        offset += 4;
+
+        //new tuple
+        if (tupleSize != 0) {
+            tupleWriter.writeTuple(reusableLogContentObject.getNewValue(), logicalLogLocator.getBuffer().getArray(),
+                    logicalLogLocator.getMemoryOffset() + offset);
+            offset += tupleSize;
+        }
+
+        if (resourceType == ResourceType.LSM_BTREE) {
+            //old operation
+            (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + offset,
+                    (byte) reusableLogContentObject.getOldOperation().ordinal());
+            offset += 1;
+
+            if (reusableLogContentObject.getOldOperation() != IndexOperation.NOOP) {
+                //old tuple size
+                if (reusableLogContentObject.getOldValue() != null) {
+                    tupleSize = tupleWriter.bytesRequired(reusableLogContentObject.getOldValue());
+                } else {
+                    tupleSize = 0;
+                }
+                (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + offset, tupleSize);
+                offset += 4;
+
+                if (tupleSize != 0) {
+                    //old tuple
+                    tupleWriter.writeTuple(reusableLogContentObject.getOldValue(), logicalLogLocator.getBuffer()
+                            .getArray(), logicalLogLocator.getMemoryOffset() + offset);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject)
+            throws ACIDException {
+    }
+
+    @Override
+    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject)
+            throws ACIDException {
+    }
+
+    /**
+     * Represents a utility class for generating log records corresponding to
+     * operations on a ITreeIndex implementation. A TreeLogger instance is thread
+     * safe and can be shared across multiple threads that may belong to same or
+     * different transactions.
+     */
+    public class ReusableLogContentObjectRepository {
+
+        private final Map<Long, ReusableLogContentObject> id2Object = new HashMap<Long, ReusableLogContentObject>();
+
+        public synchronized ReusableLogContentObject getObject(long threadId) {
+            return id2Object.get(threadId);
+        }
+
+        public synchronized void putObject(long threadId, ReusableLogContentObject reusableLogContentObject) {
+            this.id2Object.put(threadId, reusableLogContentObject);
+        }
+
+        public synchronized void remove(long threadId) {
+            id2Object.remove(threadId);
+        }
+    }
+
+    /**
+     * Represents the state of a transaction thread. The state contains information
+     * that includes the tuple being operated, the operation and the location of the
+     * log record corresponding to the operation.
+     */
+    public class ReusableLogContentObject {
+
+        private LogicalLogLocator logicalLogLocator;
+        private IndexOperation newOperation;
+        private ITupleReference newValue;
+        private IndexOperation oldOperation;
+        private ITupleReference oldValue;
+
+        public ReusableLogContentObject(LogicalLogLocator logicalLogLocator, IndexOperation newOperation,
+                ITupleReference newValue, IndexOperation oldOperation, ITupleReference oldValue) {
+            this.logicalLogLocator = logicalLogLocator;
+            this.newOperation = newOperation;
+            this.newValue = newValue;
+            this.oldOperation = oldOperation;
+            this.oldValue = oldValue;
+        }
+
+        public synchronized LogicalLogLocator getLogicalLogLocator() {
+            return logicalLogLocator;
+        }
+
+        public synchronized void setLogicalLogLocator(LogicalLogLocator logicalLogLocator) {
+            this.logicalLogLocator = logicalLogLocator;
+        }
+
+        public synchronized void setNewOperation(IndexOperation newOperation) {
+            this.newOperation = newOperation;
+        }
+
+        public synchronized IndexOperation getNewOperation() {
+            return newOperation;
+        }
+
+        public synchronized void setNewValue(ITupleReference newValue) {
+            this.newValue = newValue;
+        }
+
+        public synchronized ITupleReference getNewValue() {
+            return newValue;
+        }
+
+        public synchronized void setOldOperation(IndexOperation oldOperation) {
+            this.oldOperation = oldOperation;
+        }
+
+        public synchronized IndexOperation getOldOperation() {
+            return oldOperation;
+        }
+
+        public synchronized void setOldValue(ITupleReference oldValue) {
+            this.oldValue = oldValue;
+        }
+
+        public synchronized ITupleReference getOldValue() {
+            return oldValue;
+        }
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java
new file mode 100644
index 0000000..da5042c
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.service.logging;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.MutableResourceId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+
+public class IndexLoggerRepository {
+
+    private final Map<MutableResourceId, IndexLogger> loggers = new HashMap<MutableResourceId, IndexLogger>();
+    private final TransactionSubsystem txnSubsystem;
+    private MutableResourceId mutableResourceId;
+
+    public IndexLoggerRepository(TransactionSubsystem provider) {
+        this.txnSubsystem = provider;
+        mutableResourceId = new MutableResourceId(0);
+    }
+
+    public synchronized IndexLogger getIndexLogger(long resourceId, byte resourceType) {
+        mutableResourceId.setId(resourceId);
+        IndexLogger logger = loggers.get(mutableResourceId);
+        if (logger == null) {
+            MutableResourceId newMutableResourceId = new MutableResourceId(resourceId);
+            IIndex index = (IIndex) txnSubsystem.getAsterixAppRuntimeContextProvider().getIndexLifecycleManager()
+                    .getIndex(resourceId);
+            logger = new IndexLogger(resourceId, resourceType, index);
+            loggers.put(newMutableResourceId, logger);
+        }
+        return logger;
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java
new file mode 100644
index 0000000..7ecfa69
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.service.logging;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+import edu.uci.ics.hyracks.storage.am.common.tuples.SimpleTupleReference;
+import edu.uci.ics.hyracks.storage.am.common.tuples.SimpleTupleWriter;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+
+public class IndexResourceManager implements IResourceManager {
+
+    public final byte resourceType;
+
+    private final TransactionSubsystem txnSubsystem;
+
+    public IndexResourceManager(byte resourceType, TransactionSubsystem provider) {
+        this.resourceType = resourceType;
+        this.txnSubsystem = provider;
+    }
+
+    public byte getResourceManagerId() {
+        return resourceType;
+    }
+
+    public void undo(ILogRecordHelper logRecordHelper, LogicalLogLocator logLocator) throws ACIDException {
+        long resourceId = logRecordHelper.getResourceId(logLocator);
+        int offset = logRecordHelper.getLogContentBeginPos(logLocator);
+
+        //TODO
+        //replace TransactionResourceRepository with IndexLifeCycleManager
+        // look up the repository to obtain the resource object
+        IIndex index = (IIndex) txnSubsystem.getAsterixAppRuntimeContextProvider().getIndexLifecycleManager()
+                .getIndex(resourceId);
+
+        /* field count */
+        int fieldCount = logLocator.getBuffer().readInt(offset);
+        offset += 4;
+
+        /* new operation */
+        byte newOperation = logLocator.getBuffer().getByte(offset);
+        offset += 1;
+
+        /* new value size */
+        int newValueSize = logLocator.getBuffer().readInt(offset);
+        offset += 4;
+
+        /* new value */
+        SimpleTupleWriter tupleWriter = new SimpleTupleWriter();
+        SimpleTupleReference newTuple = (SimpleTupleReference) tupleWriter.createTupleReference();
+        newTuple.setFieldCount(fieldCount);
+        newTuple.resetByTupleOffset(logLocator.getBuffer().getByteBuffer(), offset);
+        offset += newValueSize;
+
+        ILSMIndexAccessor indexAccessor = (ILSMIndexAccessor) index.createAccessor(NoOpOperationCallback.INSTANCE,
+                NoOpOperationCallback.INSTANCE);
+
+        try {
+            if (resourceType == ResourceType.LSM_BTREE) {
+
+                /* old operation */
+                byte oldOperation = logLocator.getBuffer().getByte(offset);
+                offset += 1;
+
+                if (oldOperation != (byte) IndexOperation.NOOP.ordinal()) {
+                    /* old value size */
+                    int oldValueSize = logLocator.getBuffer().readInt(offset);
+                    offset += 4;
+
+                    /* old value */
+                    SimpleTupleReference oldTuple = (SimpleTupleReference) tupleWriter.createTupleReference();
+                    oldTuple.setFieldCount(fieldCount);
+                    oldTuple.resetByTupleOffset(logLocator.getBuffer().getByteBuffer(), offset);
+                    offset += oldValueSize;
+
+                    if (oldOperation == (byte) IndexOperation.DELETE.ordinal()) {
+                        indexAccessor.forceDelete(oldTuple);
+                    } else {
+                        indexAccessor.forceInsert(oldTuple);
+                    }
+                } else {
+                    indexAccessor.forcePhysicalDelete(newTuple);
+                }
+            } else {
+                if (newOperation == (byte) IndexOperation.DELETE.ordinal()) {
+                    indexAccessor.forceInsert(newTuple);
+                } else {
+                    indexAccessor.forceDelete(newTuple);
+                }
+            }
+        } catch (Exception e) {
+            throw new ACIDException("Undo failed", e);
+        }
+    }
+
+    public void redo(ILogRecordHelper logRecordHelper, LogicalLogLocator logLocator) throws ACIDException {
+        long resourceId = logRecordHelper.getResourceId(logLocator);
+        int offset = logRecordHelper.getLogContentBeginPos(logLocator);
+
+        IIndex index = (IIndex) txnSubsystem.getAsterixAppRuntimeContextProvider().getIndexLifecycleManager()
+                .getIndex(resourceId);
+
+        /* field count */
+        int fieldCount = logLocator.getBuffer().readInt(offset);
+        offset += 4;
+
+        /* new operation */
+        byte newOperation = logLocator.getBuffer().getByte(offset);
+        offset += 1;
+
+        /* new value size */
+        int newValueSize = logLocator.getBuffer().readInt(offset);
+        offset += 4;
+
+        /* new value */
+        SimpleTupleWriter tupleWriter = new SimpleTupleWriter();
+        SimpleTupleReference newTuple = (SimpleTupleReference) tupleWriter.createTupleReference();
+        newTuple.setFieldCount(fieldCount);
+        newTuple.resetByTupleOffset(logLocator.getBuffer().getByteBuffer(), offset);
+        offset += newValueSize;
+
+        ILSMIndexAccessor indexAccessor = (ILSMIndexAccessor) index.createAccessor(NoOpOperationCallback.INSTANCE,
+                NoOpOperationCallback.INSTANCE);
+
+        try {
+            if (newOperation == IndexOperation.INSERT.ordinal()) {
+                indexAccessor.insert(newTuple);
+            } else if (newOperation == IndexOperation.DELETE.ordinal()) {
+                indexAccessor.delete(newTuple);
+            } else {
+                new ACIDException("Unsupported operation type for undo operation : " + newOperation);
+            }
+        } catch (Exception e) {
+            throw new ACIDException("Redo failed", e);
+        }
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
index 7ba9130..8a2b188 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
@@ -21,33 +21,34 @@
 
 public class LogCursor implements ILogCursor {
 
-    private final ILogManager logManager;
+    private final LogManager logManager;
     private final ILogFilter logFilter;
-    private IFileBasedBuffer readOnlyBuffer;
+    private IBuffer readOnlyBuffer;
     private LogicalLogLocator logicalLogLocator = null;
-    private int bufferIndex = 0;
+    private long bufferIndex = 0;
+    private boolean firstNext = true;
+    private boolean readMemory = false;
+    private long readLSN = 0;
+    private boolean needReloadBuffer = true;
 
     /**
      * @param logFilter
      */
-    public LogCursor(final ILogManager logManager, ILogFilter logFilter) throws ACIDException {
+    public LogCursor(final LogManager logManager, ILogFilter logFilter) throws ACIDException {
         this.logFilter = logFilter;
         this.logManager = logManager;
 
     }
 
-    public LogCursor(final ILogManager logManager, PhysicalLogLocator startingPhysicalLogLocator, ILogFilter logFilter)
-            throws IOException {
+    public LogCursor(final LogManager logManager, PhysicalLogLocator startingPhysicalLogLocator, ILogFilter logFilter)
+            throws IOException, ACIDException {
         this.logFilter = logFilter;
         this.logManager = logManager;
         initialize(startingPhysicalLogLocator);
     }
 
-    private void initialize(final PhysicalLogLocator startingPhysicalLogLocator) throws IOException {
-        readOnlyBuffer = getReadOnlyBuffer(startingPhysicalLogLocator.getLsn(), logManager.getLogManagerProperties()
-                .getLogBufferSize());
-        logicalLogLocator = new LogicalLogLocator(startingPhysicalLogLocator.getLsn(), readOnlyBuffer, 0, logManager);
-
+    private void initialize(final PhysicalLogLocator startingPhysicalLogLocator) throws IOException, ACIDException {
+        logicalLogLocator = new LogicalLogLocator(startingPhysicalLogLocator.getLsn(), null, 0, logManager);
     }
 
     private IFileBasedBuffer getReadOnlyBuffer(long lsn, int size) throws IOException {
@@ -55,7 +56,8 @@
         String filePath = LogUtil.getLogFilePath(logManager.getLogManagerProperties(), fileId);
         File file = new File(filePath);
         if (file.exists()) {
-            return FileUtil.getFileBasedBuffer(filePath, lsn, size);
+            return FileUtil.getFileBasedBuffer(filePath, lsn
+                    % logManager.getLogManagerProperties().getLogPartitionSize(), size);
         } else {
             return null;
         }
@@ -66,21 +68,49 @@
      * filter. The parameter nextLogLocator is set to the point to the next log
      * record.
      * 
-     * @param nextLogicalLogLocator
+     * @param currentLogLocator
      * @return true if the cursor was successfully moved to the next log record
      *         false if there are no more log records that satisfy the
      *         configured filter.
      */
     @Override
-    public boolean next(LogicalLogLocator nextLogicalLogLocator) throws IOException, ACIDException {
+    public boolean next(LogicalLogLocator currentLogLocator) throws IOException, ACIDException {
 
+        //TODO
+        //Test the correctness when multiple log files are created
         int integerRead = -1;
         boolean logRecordBeginPosFound = false;
         long bytesSkipped = 0;
+
+        //if the lsn to read is greater than or equal to the most recent lsn, then return false
+        if (logicalLogLocator.getLsn() >= logManager.getCurrentLsn().get()) {
+            return false;
+        }
+
+        //if the lsn to read is greater than the last flushed lsn, then read from memory
+        if (logicalLogLocator.getLsn() > logManager.getLastFlushedLsn().get()) {
+            return readFromMemory(currentLogLocator);
+        }
+
+        //if the readOnlyBuffer should be reloaded, then load the log page from the log file.
+        //needReloadBuffer is set to true if the log record is read from the memory log page.
+        if (needReloadBuffer) {
+            //log page size doesn't exceed integer boundary
+            int offset = (int)(logicalLogLocator.getLsn() % logManager.getLogManagerProperties().getLogPageSize());
+            long adjustedLSN = logicalLogLocator.getLsn() - offset;
+            readOnlyBuffer = getReadOnlyBuffer(adjustedLSN, logManager.getLogManagerProperties()
+                    .getLogPageSize());
+            logicalLogLocator.setBuffer(readOnlyBuffer);
+            logicalLogLocator.setMemoryOffset(offset);
+            needReloadBuffer = false;
+        }
+
+        //check whether the currentOffset has enough space to have new log record by comparing
+        //the smallest log record type(which is commit)'s log header.
         while (logicalLogLocator.getMemoryOffset() <= readOnlyBuffer.getSize()
-                - logManager.getLogManagerProperties().getLogHeaderSize()) {
+                - logManager.getLogRecordHelper().getLogHeaderSize(LogType.COMMIT)) {
             integerRead = readOnlyBuffer.readInt(logicalLogLocator.getMemoryOffset());
-            if (integerRead == logManager.getLogManagerProperties().logMagicNumber) {
+            if (integerRead == logManager.getLogManagerProperties().LOG_MAGIC_NUMBER) {
                 logRecordBeginPosFound = true;
                 break;
             }
@@ -93,36 +123,46 @@
                 // bytes without finding a log record, it
                 // indicates an absence of logs any further.
             }
+
+            if (logicalLogLocator.getLsn() > logManager.getLastFlushedLsn().get()) {
+                return next(currentLogLocator); //should read from memory if there is any further log
+            }
         }
 
         if (!logRecordBeginPosFound) {
             // need to reload the buffer
-            long lsnpos = (++bufferIndex * logManager.getLogManagerProperties().getLogBufferSize());
-            readOnlyBuffer = getReadOnlyBuffer(lsnpos, logManager.getLogManagerProperties().getLogBufferSize());
+            // TODO
+            // reduce IO by reading more pages(equal to logBufferSize) at a time.
+            long lsnpos = ((logicalLogLocator.getLsn() / logManager.getLogManagerProperties().getLogPageSize()) + 1)
+                    * logManager.getLogManagerProperties().getLogPageSize();
+
+            readOnlyBuffer = getReadOnlyBuffer(lsnpos, logManager.getLogManagerProperties().getLogPageSize());
             if (readOnlyBuffer != null) {
                 logicalLogLocator.setBuffer(readOnlyBuffer);
                 logicalLogLocator.setLsn(lsnpos);
                 logicalLogLocator.setMemoryOffset(0);
-                return next(nextLogicalLogLocator);
+                return next(currentLogLocator);
             } else {
                 return false;
             }
         }
 
-        int logLength = logManager.getLogRecordHelper().getLogLength(logicalLogLocator);
-        if (logManager.getLogRecordHelper().validateLogRecord(logManager.getLogManagerProperties(), logicalLogLocator)) {
-            if (nextLogicalLogLocator == null) {
-                nextLogicalLogLocator = new LogicalLogLocator(0, readOnlyBuffer, -1, logManager);
+        int logLength = logManager.getLogRecordHelper().getLogRecordSize(
+                logManager.getLogRecordHelper().getLogType(logicalLogLocator),
+                logManager.getLogRecordHelper().getLogContentSize(logicalLogLocator));
+        if (logManager.getLogRecordHelper().validateLogRecord(logicalLogLocator)) {
+            if (currentLogLocator == null) {
+                currentLogLocator = new LogicalLogLocator(0, readOnlyBuffer, -1, logManager);
             }
-            nextLogicalLogLocator.setLsn(logicalLogLocator.getLsn());
-            nextLogicalLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset());
-            nextLogicalLogLocator.setBuffer(readOnlyBuffer);
+            currentLogLocator.setLsn(logicalLogLocator.getLsn());
+            currentLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset());
+            currentLogLocator.setBuffer(readOnlyBuffer);
             logicalLogLocator.incrementLsn(logLength);
             logicalLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset() + logLength);
         } else {
             throw new ACIDException("Invalid Log Record found ! checksums do not match :( ");
         }
-        return logFilter.accept(readOnlyBuffer, nextLogicalLogLocator.getMemoryOffset(), logLength);
+        return logFilter.accept(readOnlyBuffer, currentLogLocator.getMemoryOffset(), logLength);
     }
 
     /**
@@ -135,4 +175,98 @@
         return logFilter;
     }
 
+    private boolean readFromMemory(LogicalLogLocator currentLogLocator) throws ACIDException, IOException {
+        byte[] logRecord = null;
+        long lsn = logicalLogLocator.getLsn();
+
+        //set the needReloadBuffer to true
+        needReloadBuffer = true;
+
+        int pageIndex = logManager.getLogPageIndex(lsn);
+        logicalLogLocator.setMemoryOffset(logManager.getLogPageOffset(lsn));
+
+        // take a lock on the log page so that the page is not flushed to
+        // disk interim
+        IFileBasedBuffer logPage = logManager.getLogPage(pageIndex);
+        synchronized (logPage) {
+            // need to check again if the log record in the log buffer or has reached the disk
+            if (lsn > logManager.getLastFlushedLsn().get()) {
+
+                //find the magic number to identify the start of the log record
+                //----------------------------------------------------------------
+                int readNumber = -1;
+                int logPageSize = logManager.getLogManagerProperties().getLogPageSize();
+                int logMagicNumber = logManager.getLogManagerProperties().LOG_MAGIC_NUMBER;
+                int bytesSkipped = 0;
+                boolean logRecordBeginPosFound = false;
+                //check whether the currentOffset has enough space to have new log record by comparing
+                //the smallest log record type(which is commit)'s log header.
+                while (logicalLogLocator.getMemoryOffset() <= logPageSize
+                        - logManager.getLogRecordHelper().getLogHeaderSize(LogType.COMMIT)) {
+                    readNumber = logPage.readInt(logicalLogLocator.getMemoryOffset());
+                    if (readNumber == logMagicNumber) {
+                        logRecordBeginPosFound = true;
+                        break;
+                    }
+                    logicalLogLocator.increaseMemoryOffset(1);
+                    logicalLogLocator.incrementLsn();
+                    bytesSkipped++;
+                    if (bytesSkipped > logPageSize) {
+                        return false; // the maximum size of a log record is limited to
+                        // a log page size. If we have skipped as many
+                        // bytes without finding a log record, it
+                        // indicates an absence of logs any further.
+                    }
+                }
+
+                if (!logRecordBeginPosFound) {
+                    // need to read the next log page
+                    readOnlyBuffer = null;
+                    logicalLogLocator.setBuffer(null);
+                    logicalLogLocator.setLsn(lsn / logPageSize + 1);
+                    logicalLogLocator.setMemoryOffset(0);
+                    return next(currentLogLocator);
+                }
+                //------------------------------------------------------
+
+                logicalLogLocator.setBuffer(logPage);
+                int logLength = logManager.getLogRecordHelper().getLogRecordSize(
+                        logManager.getLogRecordHelper().getLogType(logicalLogLocator),
+                        logManager.getLogRecordHelper().getLogContentSize(logicalLogLocator));
+                logRecord = new byte[logLength];
+
+                //copy the log record and set the buffer of logical log locator to the buffer of the copied log record.
+                System.arraycopy(logPage.getArray(), logicalLogLocator.getMemoryOffset(), logRecord, 0, logLength);
+                MemBasedBuffer memBuffer = new MemBasedBuffer(logRecord);
+                readOnlyBuffer = memBuffer;
+                logicalLogLocator.setBuffer(readOnlyBuffer);
+                logicalLogLocator.setMemoryOffset(0);
+
+                if (logManager.getLogRecordHelper().validateLogRecord(logicalLogLocator)) {
+                    if (currentLogLocator == null) {
+                        currentLogLocator = new LogicalLogLocator(0, readOnlyBuffer, -1, logManager);
+                    }
+                    currentLogLocator.setLsn(logicalLogLocator.getLsn());
+                    currentLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset());
+                    currentLogLocator.setBuffer(readOnlyBuffer);
+                    logicalLogLocator.incrementLsn(logLength);
+                    logicalLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset() + logLength);
+                } else {
+                    //if the checksum doesn't match, there is two possible scenario. 
+                    //case1) the log file corrupted: there's nothing we can do for this case during abort. 
+                    //case2) the log record is partially written by another thread. So, we may ignore this log record 
+                    //       and continue to read the next log record
+                    //[NOTICE]
+                    //Only case2 is handled here. 
+                    logicalLogLocator.incrementLsn(logLength);
+                    logicalLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset() + logLength);
+                    return next(currentLogLocator);
+                }
+                return logFilter.accept(readOnlyBuffer, currentLogLocator.getMemoryOffset(), logLength);
+
+            } else {
+                return next(currentLogLocator);//read from disk
+            }
+        }
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
index 1d1e067..4e96d2e 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,14 +15,17 @@
 package edu.uci.ics.asterix.transaction.management.service.logging;
 
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Properties;
+import java.util.Set;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
@@ -30,29 +33,26 @@
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogManager.PageOwnershipStatus;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogManager.PageState;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 public class LogManager implements ILogManager {
 
-    /*
-     * Log Record Structure HEADER
-     * <(log_magic_number,4)(log_length,8)(log_type,1
-     * )(log_action_type,1)(log_timestamp
-     * ,8)(log_transaction_id,8)(resource_manager_id
-     * ,1)(page_id,8)(previous_lsn,8) <CONTENT> TAIL <(checksum,8)>
-     */
-
+    public static final boolean IS_DEBUG_MODE = false;//true
     private static final Logger LOGGER = Logger.getLogger(LogManager.class.getName());
-    private TransactionProvider provider;
+    private final TransactionSubsystem provider;
     private LogManagerProperties logManagerProperties;
+    private LogPageFlushThread logPageFlusher;
 
     /*
      * the array of log pages. The number of log pages is configurable. Pages
      * taken together form an in-memory log buffer.
      */
-
     private IFileBasedBuffer[] logPages;
 
     private ILogRecordHelper logRecordHelper;
@@ -61,6 +61,7 @@
      * Number of log pages that constitute the in-memory log buffer.
      */
     private int numLogPages;
+
     /*
      * Initially all pages have an owner count of 1 that is the LogManager. When
      * a transaction requests to write in a log page, the owner count is
@@ -69,12 +70,11 @@
      * (covering the whole log record). When the content has been put, the log
      * manager computes the checksum and puts it after the content. At this
      * point, the ownership count is decremented as the transaction is done with
-     * using the page. When a page is full, the log manager decrements the count
-     * by one indicating that it has released its ownership of the log page.
-     * There could be other transaction(s) still owning the page (that is they
-     * could still be mid-way putting the log content). When the ownership count
-     * eventually reaches zero, the thread responsible for flushing the log page
-     * is notified and the page is flushed to disk.
+     * using the page. When a page is requested to be flushed, logPageFlusher
+     * set the count to 0(LOG_FLUSHER: meaning that the page is being flushed)
+     * only if the count is 1(LOG_WRITER: meaning that there is no other
+     * transactions who own the page to write logs.) After flushing the page,
+     * logPageFlusher set this count to 1.
      */
     private AtomicInteger[] logPageOwnerCount;
 
@@ -85,18 +85,17 @@
 
     /*
      * LogPageStatus: A page is either ACTIVE or INACTIVE. The status for each
-     * page is maintained in a map called logPageStatus. A page is ACTIVE when
-     * the LogManager can allocate space in the page for writing a log record.
-     * Initially all pages are ACTIVE. As transactions fill up space by writing
-     * log records, a page may not have sufficient space left for serving a
-     * request by a transaction. When this happens, the page is marked INACTIVE.
-     * An INACTIVE page with no owners ( logPageOwnerCount.get(<pageIndex>) ==
-     * 0) indicates that the page must be flushed to disk before any other log
-     * record is written on the page.F
+     * page is maintained in logPageStatus. A page is ACTIVE when the LogManager
+     * can allocate space in the page for writing a log record. Initially all
+     * pages are ACTIVE. As transactions fill up space by writing log records, a
+     * page may not have sufficient space left for serving a request by a
+     * transaction. When this happens, the page is flushed to disk by calling
+     * logPageFlusher.requestFlush(). In the requestFlush(), after
+     * groupCommitWaitTime, the page status is set to INACTIVE. Then, there is
+     * no more writer on the page(meaning the corresponding logPageOwnerCount is
+     * 1), the page is flushed by the logPageFlusher and the status is reset to
+     * ACTIVE by the logPageFlusher.
      */
-
-    // private Map<Integer, Integer> logPageStatus = new
-    // ConcurrentHashMap<Integer, Integer>();
     private AtomicInteger[] logPageStatus;
 
     static class PageState {
@@ -104,40 +103,7 @@
         public static final int ACTIVE = 1;
     }
 
-    private AtomicLong lastFlushedLsn = new AtomicLong(-1);
-    private AtomicInteger lastFlushedPage = new AtomicInteger(-1);
-
-    /*
-     * pendingFlushRequests is a map with key as Integer denoting the page
-     * index. When a (transaction) thread discovers the need to flush a page, it
-     * puts its Thread object into the corresponding value that is a
-     * LinkedBlockingQueue. The LogManager has a LogFlusher thread that scans
-     * this map in order of page index (and circling around). The flusher thread
-     * needs to flush pages in order and waits for a thread to deposit an object
-     * in the blocking queue corresponding to the next page in order. A request
-     * to flush a page is conveyed to the flush thread by simply depositing an
-     * object in to corresponding blocking queue. It is blocking in the sense
-     * that the flusher thread will continue to wait for an object to arrive in
-     * the queue. The object itself is ignored by the fliusher and just acts as
-     * a signal/event that a page needs to be flushed.
-     */
-
-    private LinkedBlockingQueue[] pendingFlushRequests;
-
-    /*
-     * ICommitResolver is an interface that provides an API that can answer a
-     * simple boolean - Given the commit requests so far, should a page be
-     * flushed. The implementation of the interface contains the logic (or you
-     * can say the policy) for commit. It could be group commit in which case
-     * the commit resolver may not return a true indicating that it wishes to
-     * delay flushing of the page.
-     */
-    private ICommitResolver commitResolver;
-
-    /*
-     * An object that keeps track of the submitted commit requests.
-     */
-    private CommitRequestStatistics commitRequestStatistics;
+    private AtomicLong lastFlushedLSN = new AtomicLong(-1);
 
     /*
      * When the transaction eco-system comes to life, the log manager positions
@@ -145,7 +111,7 @@
      * lsn value of the next log record to be written after a system (re)start.
      * The value is zero when the system is starting for the first time.
      */
-    private long startingLsn = 0;
+    private long startingLSN = 0;
 
     /*
      * lsn represents the monotonically increasing long value that can be broken
@@ -153,20 +119,14 @@
      */
     private AtomicLong lsn = new AtomicLong(0);
 
-    /*
-     * A map that tracks the flush requests submitted for each page. The
-     * requests for a page are cleared when the page is flushed.
-     */
-    public LinkedBlockingQueue<Thread> getPendingFlushRequests(int pageIndex) {
-        return pendingFlushRequests[pageIndex];
-    }
+    private List<HashMap<TransactionContext, Integer>> activeTxnCountMaps;
 
-    public void addFlushRequest(int pageIndex) {
-        pendingFlushRequests[pageIndex].add(Thread.currentThread());
+    public void addFlushRequest(int pageIndex, long lsn, boolean isSynchronous) {
+        logPageFlusher.requestFlush(pageIndex, lsn, isSynchronous);
     }
 
     public AtomicLong getLastFlushedLsn() {
-        return lastFlushedLsn;
+        return lastFlushedLSN;
     }
 
     public AtomicInteger getLogPageStatus(int pageIndex) {
@@ -178,18 +138,18 @@
     }
 
     public long incrementLastFlushedLsn(long delta) {
-        return lastFlushedLsn.addAndGet(delta);
+        return lastFlushedLSN.addAndGet(delta);
     }
 
-    public LogManager(TransactionProvider provider) throws ACIDException {
+    public LogManager(TransactionSubsystem provider) throws ACIDException {
         this.provider = provider;
-        initLogManagerProperties(null);
+        initLogManagerProperties(this.provider.getId());
         initLogManager();
     }
 
-    public LogManager(TransactionProvider provider, LogManagerProperties logConfiguration) throws ACIDException {
+    public LogManager(TransactionSubsystem provider, String nodeId) throws ACIDException {
         this.provider = provider;
-        initLogManagerProperties(logConfiguration);
+        initLogManagerProperties(nodeId);
         initLogManager();
     }
 
@@ -197,42 +157,30 @@
      * initialize the log manager properties either from the configuration file
      * on disk or with default values
      */
-    private void initLogManagerProperties(LogManagerProperties logConfiguration) throws ACIDException {
-        if (logConfiguration == null) {
-            InputStream is = null;
-            try {
-                File file = new File(TransactionManagementConstants.LogManagerConstants.LOG_CONF_DIR
-                        + File.pathSeparator + TransactionManagementConstants.LogManagerConstants.LOG_CONF_FILE);
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("Log Configuration file path is " + file.getAbsolutePath());
-                }
-                if (file.exists()) {
-                    is = new FileInputStream(TransactionManagementConstants.LogManagerConstants.LOG_CONF_DIR
-                            + File.pathSeparator + TransactionManagementConstants.LogManagerConstants.LOG_CONF_FILE);
-                    Properties configuredProperties = new Properties();
-                    configuredProperties.load(is);
-                    logConfiguration = new LogManagerProperties(configuredProperties);
-                } else {
-                    if (LOGGER.isLoggable(Level.INFO)) {
-                        LOGGER.info("Log configuration file not found, using defaults !");
-                    }
-                    Properties configuredProperties = new Properties();
-                    configuredProperties.setProperty(LogManagerProperties.LOG_DIR_KEY,
-                            TransactionManagementConstants.LogManagerConstants.DEFAULT_LOG_DIR + File.separator
-                                    + provider.getId());
-                    logConfiguration = new LogManagerProperties(configuredProperties);
-                }
-            } catch (IOException ioe) {
-                if (is != null) {
-                    try {
-                        is.close();
-                    } catch (IOException e) {
-                        throw new ACIDException("unable to close input stream ", e);
-                    }
+    private void initLogManagerProperties(String nodeId) throws ACIDException {
+        LogManagerProperties logProperties = null;
+        InputStream is = null;
+        try {
+            is = this.getClass().getClassLoader()
+                    .getResourceAsStream(TransactionManagementConstants.LogManagerConstants.LOG_CONF_FILE);
+
+            Properties p = new Properties();
+
+            if (is != null) {
+                p.load(is);
+            }
+            logProperties = new LogManagerProperties(p, nodeId);
+
+        } catch (IOException ioe) {
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    throw new ACIDException("unable to close input stream ", e);
                 }
             }
         }
-        logManagerProperties = logConfiguration;
+        logManagerProperties = logProperties;
     }
 
     private void initLogManager() throws ACIDException {
@@ -240,38 +188,25 @@
         numLogPages = logManagerProperties.getNumLogPages();
         logPageOwnerCount = new AtomicInteger[numLogPages];
         logPageStatus = new AtomicInteger[numLogPages];
-        pendingFlushRequests = new LinkedBlockingQueue[numLogPages];
-        if (logManagerProperties.getGroupCommitWaitPeriod() > 0) { // configure
-            // the
-            // Commit
-            // Resolver
-            commitResolver = new GroupCommitResolver(); // Group Commit is
-            // enabled
-            commitRequestStatistics = new CommitRequestStatistics(numLogPages);
-        } else {
-            commitResolver = new BasicCommitResolver(); // the basic commit
-            // resolver
+
+        activeTxnCountMaps = new ArrayList<HashMap<TransactionContext, Integer>>(numLogPages);
+        for (int i = 0; i < numLogPages; i++) {
+            activeTxnCountMaps.add(new HashMap<TransactionContext, Integer>());
         }
-        this.commitResolver.init(this); // initialize the commit resolver
+
         logPages = new FileBasedBuffer[numLogPages];
 
         /*
          * place the log anchor at the end of the last log record written.
          */
-        PhysicalLogLocator nextPhysicalLsn = LogUtil.initializeLogAnchor(this);
-        startingLsn = nextPhysicalLsn.getLsn();
-        lastFlushedLsn.set(startingLsn - 1);
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info(" Starting lsn is : " + startingLsn);
-        }
-        lsn.set(startingLsn);
+        PhysicalLogLocator nextPhysicalLsn = initLSN();
+
         /*
          * initialize meta data for each log page.
          */
         for (int i = 0; i < numLogPages; i++) {
             logPageOwnerCount[i] = new AtomicInteger(PageOwnershipStatus.LOG_WRITER);
             logPageStatus[i] = new AtomicInteger(PageState.ACTIVE);
-            pendingFlushRequests[i] = new LinkedBlockingQueue<Thread>();
         }
 
         /*
@@ -285,13 +220,13 @@
          * daemon thread so that it does not stop the JVM from exiting when all
          * other threads are done with their work.
          */
-        LogPageFlushThread logFlusher = new LogPageFlushThread(this);
-        logFlusher.setDaemon(true);
-        logFlusher.start();
+        logPageFlusher = new LogPageFlushThread(this);
+        logPageFlusher.setDaemon(true);
+        logPageFlusher.start();
     }
 
     public int getLogPageIndex(long lsnValue) {
-        return (int) ((lsnValue - startingLsn) / logManagerProperties.getLogPageSize()) % numLogPages;
+        return (int) ((lsnValue - startingLSN) / logManagerProperties.getLogPageSize()) % numLogPages;
 
     }
 
@@ -309,7 +244,7 @@
      * record is (to be) placed.
      */
     public int getLogPageOffset(long lsnValue) {
-        return (int) (lsnValue - startingLsn) % logManagerProperties.getLogPageSize();
+        return (int) (lsnValue - startingLSN) % logManagerProperties.getLogPageSize();
     }
 
     /*
@@ -319,7 +254,7 @@
      */
     private void waitUntillPageIsAvailableForWritingLog(int pageIndex) throws ACIDException {
         if (logPageStatus[pageIndex].get() == PageState.ACTIVE
-                && getLogPageOwnershipCount(pageIndex).get() >= PageOwnershipStatus.LOG_WRITER) {
+                && logPageOwnerCount[pageIndex].get() >= PageOwnershipStatus.LOG_WRITER) {
             return;
         }
         try {
@@ -345,47 +280,47 @@
      */
     private long getLsn(int entrySize, byte logType) throws ACIDException {
         long pageSize = logManagerProperties.getLogPageSize();
-        boolean requiresFlushing = logType == LogType.COMMIT;
+
         while (true) {
             boolean forwardPage = false;
-            boolean shouldFlushPage = false;
             long old = lsn.get();
-            int pageIndex = getLogPageIndex(old); // get the log page
-            // corresponding to the
-            // current lsn value
+
+            // get the log page corresponding to the current lsn value
+            int pageIndex = getLogPageIndex(old);
             long retVal = old;
-            long next = old + entrySize; // the lsn value for the next request,
-            // if the current request is served.
+
+            // the lsn value for the next request if the current request is
+            // served.
+            long next = old + entrySize;
             int prevPage = -1;
-            if ((next - 1) / pageSize != old / pageSize // check if the log
-            // record will cross
-            // page boundaries, a
-            // case that is not
-            // allowed.
-                    || (next % pageSize == 0)) {
+
+            // check if the log record will cross page boundaries, a case that
+            // is not allowed.
+            if ((next - 1) / pageSize != old / pageSize || (next % pageSize == 0)) {
+
                 if ((old != 0 && old % pageSize == 0)) {
-                    retVal = old; // On second thought, this shall never be the
-                    // case as it means that the lsn is
-                    // currently at the beginning of a page and
-                    // we still need to forward the page which
-                    // means that the entrySize exceeds a log
-                    // page size. If this is the case, an
-                    // exception is thrown before calling this
-                    // API.
-                    // would remove this case.
+                    // On second thought, this shall never be the case as it
+                    // means that the lsn is
+                    // currently at the beginning of a page and we still need to
+                    // forward the page which
+                    // means that the entrySize exceeds a log page size. If this
+                    // is the case, an
+                    // exception is thrown before calling this API. would remove
+                    // this case.
+                    retVal = old;
 
                 } else {
-                    retVal = ((old / pageSize) + 1) * pageSize; // set the lsn
-                    // to point to
-                    // the beginning
-                    // of the next
-                    // page.
+                    // set the lsn to point to the beginning of the next page.
+                    retVal = ((old / pageSize) + 1) * pageSize;
                 }
+
                 next = retVal;
-                forwardPage = true; // as the log record shall cross log page
-                // boundary, we must re-assign the lsn (so
-                // that the log record begins on a different
-                // location.
+
+                // as the log record shall cross log page boundary, we must
+                // re-assign the lsn so
+                // that the log record begins on a different location.
+                forwardPage = true;
+
                 prevPage = pageIndex;
                 pageIndex = getNextPageInSequence(pageIndex);
             }
@@ -404,140 +339,92 @@
              */
             waitUntillPageIsAvailableForWritingLog(pageIndex);
 
-            if (!forwardPage && requiresFlushing) {
-                shouldFlushPage = commitResolver.shouldCommitPage(pageIndex, this, commitRequestStatistics);
-                if (shouldFlushPage) {
-                    next = ((next / pageSize) + 1) * pageSize; /*
-                                                                * next
-                                                                * represents the
-                                                                * next value of
-                                                                * lsn after this
-                                                                * log record has
-                                                                * been written.
-                                                                * If the page
-                                                                * needs to be
-                                                                * flushed, then
-                                                                * we do not give
-                                                                * any more LSNs
-                                                                * from this
-                                                                * page.
-                                                                */
-                }
-            }
-            if (!lsn.compareAndSet(old, next)) { // Atomic call -> returns true
-                // only when the value
-                // represented by lsn is same as
-                // "old". The value is updated
-                // to "next".
+            if (!lsn.compareAndSet(old, next)) {
+                // Atomic call -> returns true only when the value represented
+                // by lsn is same as
+                // "old". The value is updated to "next".
                 continue;
             }
 
             if (forwardPage) {
-                logPageStatus[prevPage].set(PageState.INACTIVE); // mark
-                // previous
-                // page
-                // inactive
+                addFlushRequest(prevPage, old, false);
 
-                /*
-                 * decrement on the behalf of the log manager. if there are no
-                 * more owners (count == 0) the page must be marked as a
-                 * candidate to be flushed.
-                 */
-                int pageDirtyCount = getLogPageOwnershipCount(prevPage).decrementAndGet();
-                if (pageDirtyCount == 0) {
-                    addFlushRequest(prevPage);
-                }
-
-                /*
-                 * The transaction thread that discovers the need to forward a
-                 * page is made to re-acquire a lsn.
-                 */
+                // The transaction thread that discovers the need to forward a
+                // page is made to re-acquire a lsn.
                 continue;
+
             } else {
-                /*
-                 * the transaction thread has been given a space in a log page,
-                 * but is made to wait until the page is available.
-                 */
+                // the transaction thread has been given a space in a log page,
+                // but is made to wait until the page is available.
+                // (Is this needed? when does this wait happen?)
                 waitUntillPageIsAvailableForWritingLog(pageIndex);
-                /*
-                 * increment the counter as the transaction thread now holds a
-                 * space in the log page and hence is an owner.
-                 */
+
+                // increment the counter as the transaction thread now holds a
+                // space in the log page and hence is an owner.
                 logPageOwnerCount[pageIndex].incrementAndGet();
-            }
-            if (requiresFlushing) {
-                if (!shouldFlushPage) {
-                    /*
-                     * the log record requires the page to be flushed but under
-                     * the commit policy, the flush task has been deferred. The
-                     * transaction thread submits its request to flush the page.
-                     */
-                    commitRequestStatistics.registerCommitRequest(pageIndex);
-                } else {
-                    /*
-                     * the flush request was approved by the commit resolver.
-                     * Thus the page is marked INACTIVE as no more logs will be
-                     * written on this page. The log manager needs to release
-                     * its ownership. Note that transaction threads may still
-                     * continue to be owners of the log page till they fill up
-                     * the space allocated to them.
-                     */
-                    logPageStatus[pageIndex].set(PageState.INACTIVE);
-                    logPageOwnerCount[pageIndex].decrementAndGet(); // on
-                    // the
-                    // behalf
-                    // of
-                    // log
-                    // manager
+
+                // Before the count is incremented, if the flusher flushed the
+                // allocated page,
+                // then retry to get new LSN. Otherwise, the log with allocated
+                // lsn will be lost.
+                if (lastFlushedLSN.get() >= retVal) {
+                    logPageOwnerCount[pageIndex].decrementAndGet();
+                    continue;
                 }
             }
+
             return retVal;
         }
     }
 
-    public void log(LogicalLogLocator logLocator, TransactionContext context, byte resourceMgrId, long pageId,
-            byte logType, byte logActionType, int requestedSpaceForLog, ILogger logger,
-            Map<Object, Object> loggerArguments) throws ACIDException {
-        /*
-         * logLocator is a re-usable object that is appropriately set in each
-         * invocation. If the reference is null, the log manager must throw an
-         * exception
-         */
-        if (logLocator == null) {
+    @Override
+    public void log(byte logType, TransactionContext txnCtx, int datasetId, int PKHashValue, long resourceId,
+            byte resourceMgrId, int logContentSize, ReusableLogContentObject reusableLogContentObject, ILogger logger,
+            LogicalLogLocator logicalLogLocator) throws ACIDException {
+
+        HashMap<TransactionContext, Integer> map = null;
+        int activeTxnCount;
+
+        // logLocator is a re-usable object that is appropriately set in each
+        // invocation.
+        // If the reference is null, the log manager must throw an exception.
+        if (logicalLogLocator == null) {
             throw new ACIDException(
                     " you need to pass in a non-null logLocator, if you dont have it, then pass in a dummy so that the +"
                             + "log manager can set it approporiately for you");
         }
 
         // compute the total log size including the header and the checksum.
-        int totalLogSize = logManagerProperties.getLogHeaderSize() + requestedSpaceForLog
-                + logManagerProperties.getLogChecksumSize();
+        int totalLogSize = logRecordHelper.getLogRecordSize(logType, logContentSize);
 
         // check for the total space requirement to be less than a log page.
         if (totalLogSize > logManagerProperties.getLogPageSize()) {
             throw new ACIDException(
                     " Maximum Log Content Size is "
-                            + (logManagerProperties.getLogPageSize() - logManagerProperties.getLogHeaderSize() - logManagerProperties
+                            + (logManagerProperties.getLogPageSize() - logRecordHelper.getLogHeaderSize(LogType.UPDATE) - logRecordHelper
                                     .getLogChecksumSize()));
         }
 
-        // all constraints checked and we are goot to go and acquire a lsn.
-        long previousLogLocator = -1;
-        long myLogLocator; // the will be set to the location (a long value)
-        // where the log record needs to be placed.
+        // all constraints checked and we are good to go and acquire a lsn.
+        long previousLSN = -1;
 
-        /*
-         * The logs written by a transaction need to be linked to each other for
-         * a successful rollback/recovery. However there could be multiple
-         * threads operating concurrently that are part of a common transaction.
-         * These threads need to synchronize and record the lsn corresponding to
-         * the last log record written by (any thread of) the transaction.
-         */
-        synchronized (context) {
-            previousLogLocator = context.getLastLogLocator().getLsn();
-            myLogLocator = getLsn(totalLogSize, logType);
-            context.getLastLogLocator().setLsn(myLogLocator);
-            logLocator.setLsn(myLogLocator);
+        // the will be set to the location (a long value) where the log record
+        // needs to be placed.
+        long currentLSN;
+
+        // The logs written by a transaction need to be linked to each other for
+        // a successful rollback/recovery. However there could be multiple
+        // threads operating concurrently that are part of a common transaction.
+        // These threads need to synchronize and record the lsn corresponding to
+        // the last log record written by (any thread of) the transaction.
+        synchronized (txnCtx) {
+            previousLSN = txnCtx.getLastLogLocator().getLsn();
+            currentLSN = getLsn(totalLogSize, logType);
+            txnCtx.setLastLSN(currentLSN);
+            if (IS_DEBUG_MODE) {
+                System.out.println("--------------> LSN(" + currentLSN + ") is allocated");
+            }
+            logicalLogLocator.setLsn(currentLSN);
         }
 
         /*
@@ -548,112 +435,85 @@
          * performed correctly that is ownership is released.
          */
 
-        boolean decremented = false; // indicates if the transaction thread
-        // has release ownership of the
+        // indicates if the transaction thread has release ownership of the
         // page.
-        boolean addedFlushRequest = false; // indicates if the transaction
-        // thread has submitted a flush
-        // request.
+        boolean decremented = false;
 
-        int pageIndex = (int) getLogPageIndex(myLogLocator);
+        int pageIndex = (int) getLogPageIndex(currentLSN);
 
-        /*
-         * the lsn has been obtained for the log record. need to set the
-         * LogLocator instance accordingly.
-         */
-
+        // the lsn has been obtained for the log record. need to set the
+        // LogLocator instance accordingly.
         try {
+            logicalLogLocator.setBuffer(logPages[pageIndex]);
+            int pageOffset = getLogPageOffset(currentLSN);
+            logicalLogLocator.setMemoryOffset(pageOffset);
 
-            logLocator.setBuffer(logPages[pageIndex]);
-            int pageOffset = getLogPageOffset(myLogLocator);
-            logLocator.setMemoryOffset(pageOffset);
-
-            /*
-             * write the log header.
-             */
-            logRecordHelper.writeLogHeader(context, logLocator, resourceMgrId, pageId, logType, logActionType,
-                    requestedSpaceForLog, previousLogLocator);
+            // write the log header.
+            logRecordHelper.writeLogHeader(logicalLogLocator, logType, txnCtx, datasetId, PKHashValue, previousLSN,
+                    resourceId, resourceMgrId, logContentSize);
 
             // increment the offset so that the transaction can fill up the
             // content in the correct region of the allocated space.
-            logLocator.increaseMemoryOffset(logManagerProperties.getLogHeaderSize());
+            logicalLogLocator.increaseMemoryOffset(logRecordHelper.getLogHeaderSize(logType));
 
-            // a COMMIT log record does not have any content
-            // and hence the logger (responsible for putting the log content) is
-            // not invoked.
-            if (requestedSpaceForLog != 0) {
-                logger.preLog(context, loggerArguments);
+            // a COMMIT log record does not have any content and hence
+            // the logger (responsible for putting the log content) is not
+            // invoked.
+            if (logContentSize != 0) {
+                logger.preLog(txnCtx, reusableLogContentObject);
             }
 
-            if (requestedSpaceForLog != 0) {
+            if (logContentSize != 0) {
                 // call the logger implementation and ask to fill in the log
                 // record content at the allocated space.
-                logger.log(context, logLocator, requestedSpaceForLog, loggerArguments);
-                logger.postLog(context, loggerArguments);
+                logger.log(txnCtx, logicalLogLocator, logContentSize, reusableLogContentObject);
+                logger.postLog(txnCtx, reusableLogContentObject);
+                if (IS_DEBUG_MODE) {
+                    logicalLogLocator.setMemoryOffset(logicalLogLocator.getMemoryOffset()
+                            - logRecordHelper.getLogHeaderSize(logType));
+                    System.out.println(logRecordHelper.getLogRecordForDisplay(logicalLogLocator));
+                    logicalLogLocator.increaseMemoryOffset(logRecordHelper.getLogHeaderSize(logType));
+                }
             }
 
-            /*
-             * The log record has been written. For integrity checks, compute
-             * the checksum and put it at the end of the log record.
-             */
-            int startPosChecksum = logLocator.getMemoryOffset() - logManagerProperties.getLogHeaderSize();
-            int length = totalLogSize - logManagerProperties.getLogChecksumSize();
+            // The log record has been written. For integrity checks, compute
+            // the checksum and put it at the end of the log record.
+            int startPosChecksum = logicalLogLocator.getMemoryOffset() - logRecordHelper.getLogHeaderSize(logType);
+            int length = totalLogSize - logRecordHelper.getLogChecksumSize();
             long checksum = DataUtil.getChecksum(logPages[pageIndex], startPosChecksum, length);
-            logPages[pageIndex].writeLong(pageOffset + logManagerProperties.getLogHeaderSize() + requestedSpaceForLog,
+            logPages[pageIndex].writeLong(pageOffset + logRecordHelper.getLogHeaderSize(logType) + logContentSize,
                     checksum);
 
-            /*
-             * release the ownership as the log record has been placed in
-             * created space.
-             */
-            int pageDirtyCount = logPageOwnerCount[pageIndex].decrementAndGet();
+            if (IS_DEBUG_MODE) {
+                System.out.println("--------------> LSN(" + currentLSN + ") is written");
+            }
+
+            // release the ownership as the log record has been placed in
+            // created space.
+            logPageOwnerCount[pageIndex].decrementAndGet();
 
             // indicating that the transaction thread has released ownership
             decremented = true;
 
-            /*
-             * If the transaction thread happens to be the last owner of the log
-             * page the page must by marked as a candidate to be flushed.
-             */
-            if (pageDirtyCount == 0) {
-                logPageStatus[pageIndex].set(PageState.INACTIVE);
-                addFlushRequest(pageIndex);
-                addedFlushRequest = true;
-            }
-
-            /*
-             * If the log type is commit, a flush request is registered, if the
-             * log record has not reached the disk. It may be possible that this
-             * thread does not get CPU cycles and in-between the log record has
-             * been flushed to disk because the containing log page filled up.
-             */
-            if (logType == LogType.COMMIT) {
-                if (getLastFlushedLsn().get() < myLogLocator) {
-                    if (!addedFlushRequest) {
-                        addFlushRequest(pageIndex);
-                    }
-
-                    /*
-                     * the commit log record is still in log buffer. need to
-                     * wait until the containing log page is flushed. When the
-                     * log flusher thread does flush the page, it notifies all
-                     * waiting threads of the flush event.
-                     */
-                    synchronized (logPages[pageIndex]) {
-                        while (getLastFlushedLsn().get() < myLogLocator) {
-                            logPages[pageIndex].wait();
-                        }
-                    }
+            if (logType == LogType.ENTITY_COMMIT) {
+                map = activeTxnCountMaps.get(pageIndex);
+                if (map.containsKey(txnCtx)) {
+                    activeTxnCount = (Integer) map.get(txnCtx);
+                    activeTxnCount++;
+                    map.put(txnCtx, activeTxnCount);
+                } else {
+                    map.put(txnCtx, 1);
                 }
+                addFlushRequest(pageIndex, currentLSN, false);
+            } else if (logType == LogType.COMMIT) {
+                addFlushRequest(pageIndex, currentLSN, true);
             }
+
         } catch (Exception e) {
             e.printStackTrace();
-            throw new ACIDException(context, "Thread: " + Thread.currentThread().getName()
+            throw new ACIDException(txnCtx, "Thread: " + Thread.currentThread().getName()
                     + " logger encountered exception", e);
         } finally {
-            /*
-             * If an exception was encountered and we did not release ownership
-             */
             if (!decremented) {
                 logPageOwnerCount[pageIndex].decrementAndGet();
             }
@@ -688,97 +548,165 @@
     /*
      * Read a log that is residing on the disk.
      */
-    private LogicalLogLocator readDiskLog(PhysicalLogLocator physicalLogLocator) throws ACIDException {
-        LogicalLogLocator logicalLogLocator;
-        String filePath = LogUtil.getLogFilePath(logManagerProperties,
-                LogUtil.getFileId(this, physicalLogLocator.getLsn()));
-        long fileOffset = LogUtil.getFileOffset(this, physicalLogLocator.getLsn());
+    private void readDiskLog(long lsnValue, LogicalLogLocator logicalLogLocator) throws ACIDException {
+        String filePath = LogUtil.getLogFilePath(logManagerProperties, LogUtil.getFileId(this, lsnValue));
+        long fileOffset = LogUtil.getFileOffset(this, lsnValue);
+
         ByteBuffer buffer = ByteBuffer.allocate(logManagerProperties.getLogPageSize());
         RandomAccessFile raf = null;
+        FileChannel fileChannel = null;
         try {
             raf = new RandomAccessFile(filePath, "r");
-            raf.seek(fileOffset);
-            FileChannel fileChannel = raf.getChannel();
+            fileChannel = raf.getChannel();
+            fileChannel.position(fileOffset);
             fileChannel.read(buffer);
             buffer.position(0);
-            buffer.limit(buffer.getInt(4));
+
+            byte logType = buffer.get(4);
+            int logHeaderSize = logRecordHelper.getLogHeaderSize(logType);
+            int logBodySize = buffer.getInt(logHeaderSize - 4);
+            int logRecordSize = logHeaderSize + logBodySize + logRecordHelper.getLogChecksumSize();
+            buffer.limit(logRecordSize);
             MemBasedBuffer memBuffer = new MemBasedBuffer(buffer.slice());
-            logicalLogLocator = new LogicalLogLocator(physicalLogLocator.getLsn(), memBuffer, 0, this);
-            if (!logRecordHelper.validateLogRecord(logManagerProperties, logicalLogLocator)) {
-                throw new ACIDException(" invalid log record at lsn " + physicalLogLocator.getLsn());
+            if (logicalLogLocator == null) {
+                logicalLogLocator = new LogicalLogLocator(lsnValue, memBuffer, 0, this);
+            } else {
+                logicalLogLocator.setLsn(lsnValue);
+                logicalLogLocator.setBuffer(memBuffer);
+                logicalLogLocator.setMemoryOffset(0);
+            }
+            if (!logRecordHelper.validateLogRecord(logicalLogLocator)) {
+                throw new ACIDException(" invalid log record at lsn " + lsnValue);
             }
         } catch (Exception fnfe) {
-            throw new ACIDException(" unable to retrieve log record with lsn " + physicalLogLocator.getLsn()
-                    + " from the file system", fnfe);
+            fnfe.printStackTrace();
+            throw new ACIDException(" unable to retrieve log record with lsn " + lsnValue + " from the file system",
+                    fnfe);
         } finally {
             try {
-                if (raf != null) {
+                if (fileChannel != null) {
+                    fileChannel.close();
+                } else if (raf != null) {
                     raf.close();
                 }
             } catch (IOException ioe) {
                 ioe.printStackTrace();
-                throw new ACIDException(" exception in closing " + raf, ioe);
+                throw new ACIDException(" exception in closing a file: " + filePath, ioe);
             }
         }
-        return logicalLogLocator;
     }
 
     @Override
-    public LogicalLogLocator readLog(PhysicalLogLocator physicalLogLocator) throws ACIDException {
+    public void readLog(long lsnValue, LogicalLogLocator logicalLogLocator) throws ACIDException {
         byte[] logRecord = null;
-        long lsnValue = physicalLogLocator.getLsn();
-        if (lsnValue > lsn.get()) {
-            throw new ACIDException(" invalid lsn " + physicalLogLocator);
-        }
 
-        LogicalLogLocator logLocator = null;
+        if (lsnValue >= lsn.get()) {
+            throw new ACIDException(" invalid lsn " + lsnValue);
+        }
 
         /* check if the log record in the log buffer or has reached the disk. */
         if (lsnValue > getLastFlushedLsn().get()) {
             int pageIndex = getLogPageIndex(lsnValue);
             int pageOffset = getLogPageOffset(lsnValue);
+
+            // TODO
+            // minimize memory allocation overhead. current code allocates the
+            // log page size per reading a log record.
+
             byte[] pageContent = new byte[logManagerProperties.getLogPageSize()];
+
             // take a lock on the log page so that the page is not flushed to
             // disk interim
             synchronized (logPages[pageIndex]) {
-                if (lsnValue > getLastFlushedLsn().get()) { // need to check
-                    // again
-                    // (this
-                    // thread may have got
-                    // de-scheduled and must
-                    // refresh!)
+
+                // need to check again (this thread may have got de-scheduled
+                // and must refresh!)
+                if (lsnValue > getLastFlushedLsn().get()) {
 
                     // get the log record length
                     logPages[pageIndex].getBytes(pageContent, 0, pageContent.length);
-                    int logRecordLength = DataUtil.byteArrayToInt(pageContent, pageOffset + 4);
-                    logRecord = new byte[logRecordLength];
+                    byte logType = pageContent[pageOffset + 4];
+                    int logHeaderSize = logRecordHelper.getLogHeaderSize(logType);
+                    int logBodySize = DataUtil.byteArrayToInt(pageContent, pageOffset + logHeaderSize - 4);
+                    int logRecordSize = logHeaderSize + logBodySize + logRecordHelper.getLogChecksumSize();
+                    logRecord = new byte[logRecordSize];
 
-                    /*
-                     * copy the log record content
-                     */
-                    System.arraycopy(pageContent, pageOffset, logRecord, 0, logRecordLength);
+                    // copy the log record content
+                    System.arraycopy(pageContent, pageOffset, logRecord, 0, logRecordSize);
                     MemBasedBuffer memBuffer = new MemBasedBuffer(logRecord);
-                    logLocator = new LogicalLogLocator(lsnValue, memBuffer, 0, this);
+                    if (logicalLogLocator == null) {
+                        logicalLogLocator = new LogicalLogLocator(lsnValue, memBuffer, 0, this);
+                    } else {
+                        logicalLogLocator.setLsn(lsnValue);
+                        logicalLogLocator.setBuffer(memBuffer);
+                        logicalLogLocator.setMemoryOffset(0);
+                    }
                     try {
                         // validate the log record by comparing checksums
-                        if (!logRecordHelper.validateLogRecord(logManagerProperties, logLocator)) {
-                            throw new ACIDException(" invalid log record at lsn " + physicalLogLocator);
+                        if (!logRecordHelper.validateLogRecord(logicalLogLocator)) {
+                            throw new ACIDException(" invalid log record at lsn " + lsnValue);
                         }
                     } catch (Exception e) {
-                        throw new ACIDException("exception encoutered in validating log record at lsn "
-                                + physicalLogLocator, e);
+                        throw new ACIDException("exception encoutered in validating log record at lsn " + lsnValue, e);
                     }
-                    return logLocator;
+                    return;
                 }
             }
         }
 
-        /*
-         * the log record is residing on the disk, read it from there.
-         */
-        return readDiskLog(physicalLogLocator);
+        // the log record is residing on the disk, read it from there.
+        readDiskLog(lsnValue, logicalLogLocator);
     }
 
+    public void renewLogFiles() throws ACIDException {
+        List<String> logFileNames = LogUtil.getLogFiles(logManagerProperties);
+        for (String name : logFileNames) {
+            File file = new File(LogUtil.getLogFilePath(logManagerProperties, Long.parseLong(name)));
+            if (!file.delete()) {
+                throw new ACIDException("Failed to delete a file: " + name);
+            }
+        }
+        closeLogPages();
+        initLSN();
+        openLogPages();
+        logPageFlusher.renew();
+    }
+
+    private PhysicalLogLocator initLSN() throws ACIDException {
+        PhysicalLogLocator nextPhysicalLsn = LogUtil.initializeLogAnchor(this);
+        startingLSN = nextPhysicalLsn.getLsn();
+        lastFlushedLSN.set(startingLSN - 1);
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" Starting lsn is : " + startingLSN);
+        }
+        lsn.set(startingLSN);
+        return nextPhysicalLsn;
+    }
+
+    private void closeLogPages() throws ACIDException {
+        for (int i = 0; i < numLogPages; i++) {
+            try {
+                logPages[i].close();
+            } catch (IOException e) {
+                throw new ACIDException(e);
+            }
+        }
+    }
+
+    private void openLogPages() throws ACIDException {
+        try {
+            String filePath = LogUtil.getLogFilePath(logManagerProperties, LogUtil.getFileId(this, startingLSN));
+            for (int i = 0; i < numLogPages; i++) {
+                logPages[i].open(filePath,
+                        LogUtil.getFileOffset(this, startingLSN) + i * logManagerProperties.getLogPageSize(),
+                        logManagerProperties.getLogPageSize());
+            }
+        } catch (Exception e) {
+            throw new ACIDException(Thread.currentThread().getName() + " unable to create log buffer", e);
+        }
+    }
+
+    @Override
     public ILogRecordHelper getLogRecordHelper() {
         return logRecordHelper;
     }
@@ -789,11 +717,12 @@
      * logic to event based when log manager support is integrated with the
      * Buffer Manager.
      */
+    @Override
     public synchronized void flushLog(LogicalLogLocator logicalLogLocator) throws ACIDException {
         if (logicalLogLocator.getLsn() > lsn.get()) {
             throw new ACIDException(" invalid lsn " + logicalLogLocator.getLsn());
         }
-        while (lastFlushedLsn.get() < logicalLogLocator.getLsn());
+        while (lastFlushedLSN.get() < logicalLogLocator.getLsn());
     }
 
     /*
@@ -828,6 +757,7 @@
         return pageNo == 0 ? numLogPages - 1 : pageNo - 1;
     }
 
+    @Override
     public LogManagerProperties getLogManagerProperties() {
         return logManagerProperties;
     }
@@ -840,30 +770,40 @@
         return logPageOwnerCount[pageIndex];
     }
 
-    public ICommitResolver getCommitResolver() {
-        return commitResolver;
-    }
-
-    public CommitRequestStatistics getCommitRequestStatistics() {
-        return commitRequestStatistics;
-    }
-
     public IFileBasedBuffer[] getLogPages() {
         return logPages;
     }
 
-    public int getLastFlushedPage() {
-        return lastFlushedPage.get();
-    }
-
-    public void setLastFlushedPage(int lastFlushedPage) {
-        this.lastFlushedPage.set(lastFlushedPage);
-    }
-
     @Override
-    public TransactionProvider getTransactionProvider() {
+    public TransactionSubsystem getTransactionSubsystem() {
         return provider;
     }
+
+    public void decrementActiveTxnCountOnIndexes(int pageIndex) throws HyracksDataException {
+        TransactionContext ctx = null;
+        int count = 0;
+        int i = 0;
+
+        HashMap<TransactionContext, Integer> map = activeTxnCountMaps.get(pageIndex);
+        Set<Map.Entry<TransactionContext, Integer>> entrySet = map.entrySet();
+        if (entrySet != null) {
+            for (Map.Entry<TransactionContext, Integer> entry : entrySet) {
+                if (entry != null) {
+                    if (entry.getValue() != null) {
+                        count = entry.getValue();
+                    }
+                    if (count > 0) {
+                        ctx = entry.getKey();
+                        for (i = 0; i < count; i++) {
+                            ctx.decreaseActiveTransactionCountOnIndexes();
+                        }
+                    }
+                }
+            }
+        }
+
+        map.clear();
+    }
 }
 
 /*
@@ -875,36 +815,99 @@
 class LogPageFlushThread extends Thread {
 
     private LogManager logManager;
+    /*
+     * pendingFlushRequests is a map with key as Integer denoting the page
+     * index. When a (transaction) thread discovers the need to flush a page, it
+     * puts its Thread object into the corresponding value that is a
+     * LinkedBlockingQueue. The LogManager has a LogFlusher thread that scans
+     * this map in order of page index (and circling around). The flusher thread
+     * needs to flush pages in order and waits for a thread to deposit an object
+     * in the blocking queue corresponding to the next page in order. A request
+     * to flush a page is conveyed to the flush thread by simply depositing an
+     * object in to corresponding blocking queue. It is blocking in the sense
+     * that the flusher thread will continue to wait for an object to arrive in
+     * the queue. The object itself is ignored by the fliusher and just acts as
+     * a signal/event that a page needs to be flushed.
+     */
+    private final LinkedBlockingQueue<Object>[] flushRequestQueue;
+    private final Object[] flushRequests;
+    private int pageToFlush;
+    private final long groupCommitWaitPeriod;
+    private boolean isRenewRequest;
 
     public LogPageFlushThread(LogManager logManager) {
         this.logManager = logManager;
         setName("Flusher");
+        int numLogPages = logManager.getLogManagerProperties().getNumLogPages();
+        this.flushRequestQueue = new LinkedBlockingQueue[numLogPages];
+        this.flushRequests = new Object[numLogPages];
+        for (int i = 0; i < numLogPages; i++) {
+            flushRequestQueue[i] = new LinkedBlockingQueue<Object>(1);
+            flushRequests[i] = new Object();
+        }
+        this.pageToFlush = -1;
+        groupCommitWaitPeriod = logManager.getLogManagerProperties().getGroupCommitWaitPeriod();
+        isRenewRequest = false;
+    }
+
+    public void renew() {
+        isRenewRequest = true;
+        pageToFlush = -1;
+        this.interrupt();
+        isRenewRequest = false;
+    }
+
+    public void requestFlush(int pageIndex, long lsn, boolean isSynchronous) {
+        synchronized (logManager.getLogPage(pageIndex)) {
+            // return if flushedLSN >= lsn
+            if (logManager.getLastFlushedLsn().get() >= lsn) {
+                return;
+            }
+
+            // put a new request to the queue only if the request on the page is
+            // not in the queue.
+            flushRequestQueue[pageIndex].offer(flushRequests[pageIndex]);
+
+            // return if the request is asynchronous
+            if (!isSynchronous) {
+                return;
+            }
+
+            // wait until there is flush.
+            boolean isNotified = false;
+            while (!isNotified) {
+                try {
+                    logManager.getLogPage(pageIndex).wait();
+                    isNotified = true;
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
     }
 
     @Override
     public void run() {
         while (true) {
             try {
-                int pageToFlush = logManager.getNextPageInSequence(logManager.getLastFlushedPage());
+                pageToFlush = logManager.getNextPageInSequence(pageToFlush);
 
-                /*
-                 * A wait call on the linkedBLockingQueue. The flusher thread is
-                 * notified when an object is added to the queue. Please note
-                 * that each page has an associated blocking queue.
-                 */
-                logManager.getPendingFlushRequests(pageToFlush).take();
+                // A wait call on the linkedBLockingQueue. The flusher thread is
+                // notified when an object is added to the queue. Please note
+                // that each page has an associated blocking queue.
+                try {
+                    flushRequestQueue[pageToFlush].take();
+                } catch (InterruptedException ie) {
+                    while (isRenewRequest) {
+                        sleep(1);
+                    }
+                    continue;
+                }
 
-                /*
-                 * The LogFlusher was waiting for a page to be marked as a
-                 * candidate for flushing. Now that has happened. The thread
-                 * shall proceed to take a lock on the log page
-                 */
-                synchronized (logManager.getLogPages()[pageToFlush]) {
+                synchronized (logManager.getLogPage(pageToFlush)) {
 
-                    /*
-                     * lock the internal state of the log manager and create a
-                     * log file if necessary.
-                     */
+                    // lock the internal state of the log manager and create a
+                    // log file if necessary.
                     int prevLogFileId = logManager.getLogFileId(logManager.getLastFlushedLsn().get());
                     int nextLogFileId = logManager.getLogFileId(logManager.getLastFlushedLsn().get()
                             + logManager.getLogManagerProperties().getLogPageSize());
@@ -916,197 +919,63 @@
                                 logManager.getLogManagerProperties().getLogPageSize());
                     }
 
-                    logManager.getLogPage(pageToFlush).flush(); // put the
-                    // content to
-                    // disk, the
-                    // thread still
-                    // has a lock on
-                    // the log page
+                    // #. sleep during the groupCommitWaitTime
+                    sleep(groupCommitWaitPeriod);
 
-                    /*
-                     * acquire lock on the log manager as we need to update the
-                     * internal bookkeeping data.
-                     */
+                    // #. set the logPageStatus to INACTIVE in order to prevent
+                    // other txns from writing on this page.
+                    logManager.getLogPageStatus(pageToFlush).set(PageState.INACTIVE);
 
-                    // increment the last flushed lsn.
-                    long lastFlushedLsn = logManager.incrementLastFlushedLsn(logManager.getLogManagerProperties()
-                            .getLogPageSize());
-
-                    /*
-                     * the log manager gains back ownership of the page. this is
-                     * reflected by incrementing the owner count of the page.
-                     * recall that when the page is begin flushed the owner
-                     * count is actually 0 Value of zero implicitly indicates
-                     * that the page is operated upon by the log flusher thread.
-                     */
-                    logManager.getLogPageOwnershipCount(pageToFlush).incrementAndGet();
-
-                    /*
-                     * get the number of log buffers that have been written so
-                     * far. A log buffer = number of log pages * size of a log
-                     * page
-                     */
-                    int numCycles = (int) lastFlushedLsn / logManager.getLogManagerProperties().getLogBufferSize();
-                    if (lastFlushedLsn % logManager.getLogManagerProperties().getLogBufferSize() == 0) {
-                        numCycles--;
+                    // #. need to wait until the logPageOwnerCount reaches 1
+                    // (LOG_WRITER)
+                    // meaning every one has finished writing logs on this page.
+                    while (logManager.getLogPageOwnershipCount(pageToFlush).get() != PageOwnershipStatus.LOG_WRITER) {
+                        sleep(0);
                     }
 
-                    /*
-                     * Map the log page to a new region in the log file.
-                     */
+                    // #. set the logPageOwnerCount to 0 (LOG_FLUSHER)
+                    // meaning it is flushing.
+                    logManager.getLogPageOwnershipCount(pageToFlush).set(PageOwnershipStatus.LOG_FLUSHER);
 
+                    // put the content to disk (the thread still has a lock on
+                    // the log page)
+                    logManager.getLogPage(pageToFlush).flush();
+
+                    // increment the last flushed lsn and lastFlushedPage
+                    logManager.incrementLastFlushedLsn(logManager.getLogManagerProperties().getLogPageSize());
+
+                    // decrement activeTxnCountOnIndexes
+                    logManager.decrementActiveTxnCountOnIndexes(pageToFlush);
+
+                    // reset the count to 1
+                    logManager.getLogPageOwnershipCount(pageToFlush).set(PageOwnershipStatus.LOG_WRITER);
+
+                    // Map the log page to a new region in the log file.
                     long nextWritePosition = logManager.getLogPages()[pageToFlush].getNextWritePosition()
                             + logManager.getLogManagerProperties().getLogBufferSize();
 
-                    /*
-                     * long nextPos = (numCycles + 1)
-                     * logManager.getLogManagerProperties() .getLogBufferSize()
-                     * + pageToFlush logManager.getLogManagerProperties()
-                     * .getLogPageSize();
-                     */
                     logManager.resetLogPage(nextWritePosition, pageToFlush);
 
                     // mark the page as ACTIVE
                     logManager.getLogPageStatus(pageToFlush).set(LogManager.PageState.ACTIVE);
 
+                    // #. checks the queue whether there is another flush
+                    // request on the same log buffer
+                    // If there is another request, then simply remove it.
+                    if (flushRequestQueue[pageToFlush].peek() != null) {
+                        flushRequestQueue[pageToFlush].take();
+                    }
+
                     // notify all waiting (transaction) threads.
-                    // Transaction thread may be waiting for the page to be
-                    // available or may have a commit log record on the page
-                    // that got flushed.
-                    logManager.getLogPages()[pageToFlush].notifyAll();
-                    logManager.setLastFlushedPage(pageToFlush);
+                    logManager.getLogPage(pageToFlush).notifyAll();
                 }
             } catch (IOException ioe) {
                 ioe.printStackTrace();
                 throw new Error(" exception in flushing log page", ioe);
             } catch (InterruptedException e) {
                 e.printStackTrace();
-                break; // must break from the loop as the exception indicates
-                // some thing horrendous has happened elsewhere
+                break;
             }
         }
     }
-}
-
-/*
- * TODO: By default the commit policy is to commit at each request and not have
- * a group commit. The following code needs to change to support group commit.
- * The code for group commit has not been tested thoroughly and is under
- * development.
- */
-class BasicCommitResolver implements ICommitResolver {
-
-    public boolean shouldCommitPage(int pageIndex, LogManager logManager,
-            CommitRequestStatistics commitRequestStatistics) {
-        return true;
-    }
-
-    public void init(LogManager logManager) {
-    }
-}
-
-class GroupCommitResolver implements ICommitResolver {
-
-    public boolean shouldCommitPage(int pageIndex, LogManager logManager,
-            CommitRequestStatistics commitRequestStatistics) {
-        long maxCommitWait = logManager.getLogManagerProperties().getGroupCommitWaitPeriod();
-        long timestamp = commitRequestStatistics.getPageLevelLastCommitRequestTimestamp(pageIndex);
-        if (timestamp == -1) {
-            if (maxCommitWait == 0) {
-                return true;
-            } else {
-                timestamp = System.currentTimeMillis();
-            }
-        }
-        long currenTime = System.currentTimeMillis();
-        if (currenTime - timestamp > maxCommitWait) {
-            return true;
-        }
-        return false;
-    }
-
-    public void init(LogManager logManager) {
-        GroupCommitHandlerThread groupCommitHandler = new GroupCommitHandlerThread(logManager);
-        groupCommitHandler.setDaemon(true);
-        groupCommitHandler.start();
-    }
-
-    class GroupCommitHandlerThread extends Thread {
-
-        private LogManager logManager;
-
-        public GroupCommitHandlerThread(LogManager logManager) {
-            this.logManager = logManager;
-            setName("Group Commit Handler");
-        }
-
-        @Override
-        public void run() {
-            int pageIndex = -1;
-            while (true) {
-                pageIndex = logManager.getNextPageInSequence(pageIndex);
-                long lastCommitRequeestTimestamp = logManager.getCommitRequestStatistics()
-                        .getPageLevelLastCommitRequestTimestamp(pageIndex);
-                if (lastCommitRequeestTimestamp != -1
-                        && System.currentTimeMillis() - lastCommitRequeestTimestamp > logManager
-                                .getLogManagerProperties().getGroupCommitWaitPeriod()) {
-                    int dirtyCount = logManager.getLogPageOwnershipCount(pageIndex).decrementAndGet();
-                    if (dirtyCount == 0) {
-                        try {
-                            logManager.getLogPageStatus(pageIndex).set(LogManager.PageState.INACTIVE);
-                            logManager.getPendingFlushRequests(pageIndex).put(Thread.currentThread());
-                        } catch (InterruptedException e) {
-                            e.printStackTrace();
-                            break;
-                        }
-                        logManager.getCommitRequestStatistics().committedPage(pageIndex);
-                    }
-                }
-            }
-        }
-    }
-
-}
-
-interface ICommitResolver {
-    public boolean shouldCommitPage(int pageIndex, LogManager logManager,
-            CommitRequestStatistics commitRequestStatistics);
-
-    public void init(LogManager logManager);
-}
-
-/**
- * Represents a collection of all commit requests by transactions for each log
- * page. The requests are accumulated until the commit policy triggers a flush
- * of the corresponding log page. Upon a flush of a page, all commit requests
- * for the page are cleared.
- */
-class CommitRequestStatistics {
-
-    AtomicInteger[] pageLevelCommitRequestCount;
-    AtomicLong[] pageLevelLastCommitRequestTimestamp;
-
-    public CommitRequestStatistics(int numPages) {
-        pageLevelCommitRequestCount = new AtomicInteger[numPages];
-        pageLevelLastCommitRequestTimestamp = new AtomicLong[numPages];
-        for (int i = 0; i < numPages; i++) {
-            pageLevelCommitRequestCount[i] = new AtomicInteger(0);
-            pageLevelLastCommitRequestTimestamp[i] = new AtomicLong(-1L);
-        }
-    }
-
-    public void registerCommitRequest(int pageIndex) {
-        pageLevelCommitRequestCount[pageIndex].incrementAndGet();
-        pageLevelLastCommitRequestTimestamp[pageIndex].set(System.currentTimeMillis());
-    }
-
-    public long getPageLevelLastCommitRequestTimestamp(int pageIndex) {
-        return pageLevelLastCommitRequestTimestamp[pageIndex].get();
-    }
-
-    public void committedPage(int pageIndex) {
-        pageLevelCommitRequestCount[pageIndex].set(0);
-        pageLevelLastCommitRequestTimestamp[pageIndex].set(-1L);
-    }
-
-}
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java
index 14b45b6..0211f69 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2012 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,111 +17,87 @@
 import java.io.Serializable;
 import java.util.Properties;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
-
 public class LogManagerProperties implements Serializable {
 
-    /**
-     * generated SerialVersionUID
-     */
     private static final long serialVersionUID = 2084227360840799662L;
 
-    private String logFilePrefix = "asterix_transaction_log"; // log files
-
-    // follow the
-    // naming
-    // convention
-    // <logFilePrefix>_<number>
-    // where number
-    // starts from 0
-
-    private String logDir = "asterix_logs"; // the path where the LogManager
-                                            // will create log files
-
-    private int logPageSize = 128 * 1024; // 128 KB
-    private int numLogPages = 8; // number of log pages in the log buffer.
-    private long logPartitionSize = logPageSize * 250; // maximum size of each
-                                                       // log file
-    private long groupCommitWaitPeriod = 0; // time in milliseconds for which a
-    // commit record will wait before
-    // the housing page is marked for
-    // flushing.
-    private int logBufferSize = logPageSize * numLogPages;
-
-    private final int logHeaderSize = 43; /*
-                                           * ( magic number(4) + (length(4) +
-                                           * type(1) + actionType(1) +
-                                           * timestamp(8) + transacitonId(8) +
-                                           * resourceMgrId(1) + pageId(8) +
-                                           * prevLSN(8)
-                                           */
-    private int logTailSize = 8; /* checksum(8) */
-    public int logMagicNumber = 123456789;
-
-    public static final String LOG_PARTITION_SIZE_KEY = "log_partition_size";
-    public static final String LOG_DIR_KEY = "log_dir";
+    public static final int LOG_MAGIC_NUMBER = 123456789;
+    public static final String LOG_DIR_SUFFIX_KEY = ".txnLogDir";
     public static final String LOG_PAGE_SIZE_KEY = "log_page_size";
+    public static final String LOG_PARTITION_SIZE_KEY = "log_partition_size";
     public static final String NUM_LOG_PAGES_KEY = "num_log_pages";
     public static final String LOG_FILE_PREFIX_KEY = "log_file_prefix";
-    public static final String GROUP_COMMIT_WAIT_PERIOD = "group_commit_wait_period";
+    public static final String GROUP_COMMIT_WAIT_PERIOD_KEY = "group_commit_wait_period";
 
-    public LogManagerProperties(Properties properties) {
-        if (properties.get(LOG_PAGE_SIZE_KEY) != null) {
-            logPageSize = Integer.parseInt(properties.getProperty(LOG_PAGE_SIZE_KEY));
-        }
-        if (properties.get(NUM_LOG_PAGES_KEY) != null) {
-            numLogPages = Integer.parseInt(properties.getProperty(NUM_LOG_PAGES_KEY));
-        }
+    private static final int DEFAULT_LOG_PAGE_SIZE = 128 * 1024; //128KB
+    private static final int DEFAULT_NUM_LOG_PAGES = 8;
+    private static final long DEFAULT_LOG_PARTITION_SIZE = (long) 1024 * 1024 * 1024 * 2; //2GB 
+    private static final long DEFAULT_GROUP_COMMIT_WAIT_PERIOD = 1; // time in millisec.
+    private static final String DEFAULT_LOG_FILE_PREFIX = "asterix_transaction_log";
+    private static final String DEFAULT_LOG_DIRECTORY = "asterix_logs/";
 
-        if (properties.get(LOG_PARTITION_SIZE_KEY) != null) {
-            logPartitionSize = Long.parseLong(properties.getProperty(LOG_PARTITION_SIZE_KEY));
-        }
+    // follow the naming convention <logFilePrefix>_<number> where number starts from 0
+    private final String logFilePrefix;
+    private final String logDir;
+    public String logDirKey;
 
-        groupCommitWaitPeriod = Long.parseLong(properties.getProperty("group_commit_wait_period", ""
-                + groupCommitWaitPeriod));
-        logFilePrefix = properties.getProperty(LOG_FILE_PREFIX_KEY, logFilePrefix);
-        logDir = properties
-                .getProperty(LOG_DIR_KEY, TransactionManagementConstants.LogManagerConstants.DEFAULT_LOG_DIR);
+    // number of log pages in the log buffer
+    private final int logPageSize;
+    // number of log pages in the log buffer.
+    private final int numLogPages;
+    // time in milliseconds
+    private final long groupCommitWaitPeriod;
+    // logBufferSize = logPageSize * numLogPages;
+    private final int logBufferSize;
+    // maximum size of each log file
+    private final long logPartitionSize;
+
+    public LogManagerProperties(Properties properties, String nodeId) {
+        this.logDirKey = new String(nodeId + LOG_DIR_SUFFIX_KEY);
+        this.logPageSize = Integer.parseInt(properties.getProperty(LOG_PAGE_SIZE_KEY, "" + DEFAULT_LOG_PAGE_SIZE));
+        this.numLogPages = Integer.parseInt(properties.getProperty(NUM_LOG_PAGES_KEY, "" + DEFAULT_NUM_LOG_PAGES));
+        long logPartitionSize = Long.parseLong(properties.getProperty(LOG_PARTITION_SIZE_KEY, ""
+                + DEFAULT_LOG_PARTITION_SIZE));
+        this.logDir = properties.getProperty(logDirKey, DEFAULT_LOG_DIRECTORY + nodeId);
+        this.logFilePrefix = properties.getProperty(LOG_FILE_PREFIX_KEY, DEFAULT_LOG_FILE_PREFIX);
+        this.groupCommitWaitPeriod = Long.parseLong(properties.getProperty(GROUP_COMMIT_WAIT_PERIOD_KEY, ""
+                + DEFAULT_GROUP_COMMIT_WAIT_PERIOD));
+
+        this.logBufferSize = logPageSize * numLogPages;
+        //make sure that the log partition size is the multiple of log buffer size.
+        this.logPartitionSize = (logPartitionSize / logBufferSize) * logBufferSize;
     }
 
     public long getLogPartitionSize() {
         return logPartitionSize;
     }
 
-    public void setLogPartitionSize(long logPartitionSize) {
-        this.logPartitionSize = logPartitionSize;
-    }
-
     public String getLogFilePrefix() {
         return logFilePrefix;
     }
 
-    public void setLogDir(String logDir) {
-        this.logDir = logDir;
-    }
-
     public String getLogDir() {
         return logDir;
     }
 
-    public int getLogHeaderSize() {
-        return logHeaderSize;
-    }
-
-    public int getLogChecksumSize() {
-        return logTailSize;
-    }
-
-    public int getTotalLogRecordLength(int logContentSize) {
-        return logContentSize + logHeaderSize + logTailSize;
-    }
-
     public int getLogPageSize() {
         return logPageSize;
     }
 
-    public void setLogPageSize(int logPageSize) {
-        this.logPageSize = logPageSize;
+    public int getNumLogPages() {
+        return numLogPages;
+    }
+
+    public int getLogBufferSize() {
+        return logBufferSize;
+    }
+
+    public long getGroupCommitWaitPeriod() {
+        return groupCommitWaitPeriod;
+    }
+
+    public String getLogDirKey() {
+        return logDirKey;
     }
 
     public String toString() {
@@ -134,29 +110,4 @@
         builder.append("group_commit_wait_period : " + groupCommitWaitPeriod + FileUtil.lineSeparator);
         return builder.toString();
     }
-
-    public void setNumLogPages(int numLogPages) {
-        this.numLogPages = numLogPages;
-    }
-
-    public int getNumLogPages() {
-        return numLogPages;
-    }
-
-    public void setLogBufferSize(int logBufferSize) {
-        this.logBufferSize = logBufferSize;
-    }
-
-    public int getLogBufferSize() {
-        return logBufferSize;
-    }
-
-    public long getGroupCommitWaitPeriod() {
-        return groupCommitWaitPeriod;
-    }
-
-    public void setGroupCommitWaitPeriod(long groupCommitWaitPeriod) {
-        this.groupCommitWaitPeriod = groupCommitWaitPeriod;
-    }
-
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
index e5cf1af..6b882ef 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
@@ -21,18 +21,45 @@
  * for writing/reading of log header and checksum as well as validating log
  * record by checksum comparison. Every ILogManager implementation has an
  * associated ILogRecordHelper implementation.
+ * == LogRecordFormat ==
+ * [Header]
+ * --------------------------- Header part1(17) : Both COMMIT and UPDATE log type have part1 fields
+ * LogMagicNumber(4)
+ * LogType(1)
+ * JobId(4)
+ * DatasetId(4) //stored in dataset_dataset in Metadata Node
+ * PKHashValue(4)
+ * --------------------------- Header part2(21) : Only UPDATE log type has part2 fields
+ * PrevLSN(8) //only for UPDATE
+ * ResourceId(8) //stored in .metadata of the corresponding index in NC node
+ * ResourceMgrId(1)
+ * LogRecordSize(4)
+ * --------------------------- COMMIT doesn't have Body fields.
+ * [Body] The Body size is given through the parameter reusableLogContentObjectLength
+ * TupleFieldCount(4)
+ * NewOp(1)
+ * NewValueLength(4)
+ * NewValue(NewValueLength)
+ * OldOp(1)
+ * OldValueLength(4)
+ * OldValue(OldValueLength)
+ * --------------------------- Both COMMIT and UPDATE have tail fields.
+ * [Tail]
+ * Checksum(8)
  */
 public class LogRecordHelper implements ILogRecordHelper {
 
-    private final int BEGIN_MAGIC_NO_POS = 0;
-    private final int BEGING_LENGTH_POS = 4;
-    private final int BEGIN_TYPE_POS = 8;
-    private final int BEGIN_ACTION_TYPE_POS = 9;
-    private final int BEGIN_TIMESTAMP_POS = 10;
-    private final int BEGIN_TRANSACTION_ID_POS = 18;
-    private final int BEGIN_RESOURCE_MGR_ID_POS = 26;
-    private final int BEGIN_PAGE_ID_POS = 27;
-    private final int BEGIN_PREV_LSN_POS = 35;
+    private final int LOG_CHECKSUM_SIZE = 8;
+
+    private final int MAGIC_NO_POS = 0;
+    private final int LOG_TYPE_POS = 4;
+    private final int JOB_ID_POS = 5;
+    private final int DATASET_ID_POS = 9;
+    private final int PK_HASH_VALUE_POS = 13;
+    private final int PREV_LSN_POS = 17;
+    private final int RESOURCE_ID_POS = 25;
+    private final int RESOURCE_MGR_ID_POS = 33;
+    private final int LOG_RECORD_SIZE_POS = 34;
 
     private ILogManager logManager;
 
@@ -40,59 +67,38 @@
         this.logManager = logManager;
     }
 
+    @Override
     public byte getLogType(LogicalLogLocator logicalLogLocator) {
-        return logicalLogLocator.getBuffer().getByte(logicalLogLocator.getMemoryOffset() + BEGIN_TYPE_POS);
+        return logicalLogLocator.getBuffer().getByte(logicalLogLocator.getMemoryOffset() + LOG_TYPE_POS);
     }
 
-    public byte getLogActionType(LogicalLogLocator logicalLogLocator) {
-        return logicalLogLocator.getBuffer().getByte(logicalLogLocator.getMemoryOffset() + BEGIN_ACTION_TYPE_POS);
+    @Override
+    public int getJobId(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getBuffer().readInt(logicalLogLocator.getMemoryOffset() + JOB_ID_POS);
     }
 
-    public int getLogLength(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).readInt(logicalLogLocator.getMemoryOffset() + BEGING_LENGTH_POS);
+    @Override
+    public int getDatasetId(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getBuffer().readInt(logicalLogLocator.getMemoryOffset() + DATASET_ID_POS);
     }
 
-    public long getLogTimestamp(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset() + BEGIN_TIMESTAMP_POS);
+    @Override
+    public int getPKHashValue(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getBuffer().readInt(logicalLogLocator.getMemoryOffset() + PK_HASH_VALUE_POS);
     }
 
-    public long getLogChecksum(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset()
-                + getLogLength(logicalLogLocator) - 8);
-    }
-
-    public long getLogTransactionId(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset() + BEGIN_TRANSACTION_ID_POS);
-    }
-
-    public byte getResourceMgrId(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).getByte(logicalLogLocator.getMemoryOffset() + BEGIN_RESOURCE_MGR_ID_POS);
-    }
-
-    public long getPageId(LogicalLogLocator logicalLogLocator) {
-        return (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset() + BEGIN_PAGE_ID_POS);
-    }
-
-    public int getLogContentBeginPos(LogicalLogLocator logicalLogLocator) {
-        return logicalLogLocator.getMemoryOffset() + logManager.getLogManagerProperties().getLogHeaderSize();
-    }
-
-    public int getLogContentEndPos(LogicalLogLocator logicalLogLocator) {
-        return logicalLogLocator.getMemoryOffset() + getLogLength(logicalLogLocator)
-                - logManager.getLogManagerProperties().getLogChecksumSize();
-    }
-
-    public PhysicalLogLocator getPreviousLsnByTransaction(LogicalLogLocator logicalLogLocator) {
-        long prevLsnValue = (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset()
-                + BEGIN_PREV_LSN_POS);
+    @Override
+    public PhysicalLogLocator getPrevLSN(LogicalLogLocator logicalLogLocator) {
+        long prevLsnValue = (logicalLogLocator.getBuffer())
+                .readLong(logicalLogLocator.getMemoryOffset() + PREV_LSN_POS);
         PhysicalLogLocator previousLogLocator = new PhysicalLogLocator(prevLsnValue, logManager);
         return previousLogLocator;
     }
 
-    public boolean getPreviousLsnByTransaction(PhysicalLogLocator physicalLogLocator,
-            LogicalLogLocator logicalLogLocator) {
-        long prevLsnValue = (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset()
-                + BEGIN_PREV_LSN_POS);
+    @Override
+    public boolean getPrevLSN(PhysicalLogLocator physicalLogLocator, LogicalLogLocator logicalLogLocator) {
+        long prevLsnValue = (logicalLogLocator.getBuffer())
+                .readLong(logicalLogLocator.getMemoryOffset() + PREV_LSN_POS);
         if (prevLsnValue == -1) {
             return false;
         }
@@ -100,6 +106,41 @@
         return true;
     }
 
+    @Override
+    public long getResourceId(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getBuffer().readLong(logicalLogLocator.getMemoryOffset() + RESOURCE_ID_POS);
+    }
+
+    @Override
+    public byte getResourceMgrId(LogicalLogLocator logicalLogLocater) {
+        return logicalLogLocater.getBuffer().getByte(logicalLogLocater.getMemoryOffset() + RESOURCE_MGR_ID_POS);
+    }
+
+    @Override
+    public int getLogContentSize(LogicalLogLocator logicalLogLocater) {
+        return logicalLogLocater.getBuffer().readInt(logicalLogLocater.getMemoryOffset() + LOG_RECORD_SIZE_POS);
+    }
+
+    @Override
+    public long getLogChecksum(LogicalLogLocator logicalLogLocator) {
+        return (logicalLogLocator.getBuffer()).readLong(logicalLogLocator.getMemoryOffset()
+                + getLogRecordSize(getLogType(logicalLogLocator), getLogContentSize(logicalLogLocator))
+                - LOG_CHECKSUM_SIZE);
+    }
+
+    @Override
+    public int getLogContentBeginPos(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getMemoryOffset() + getLogHeaderSize(getLogType(logicalLogLocator));
+    }
+
+    @Override
+    public int getLogContentEndPos(LogicalLogLocator logicalLogLocator) {
+        return logicalLogLocator.getMemoryOffset()
+                + getLogRecordSize(getLogType(logicalLogLocator), getLogContentSize(logicalLogLocator))
+                - LOG_CHECKSUM_SIZE;
+    }
+
+    @Override
     public String getLogRecordForDisplay(LogicalLogLocator logicalLogLocator) {
         StringBuilder builder = new StringBuilder();
         byte logType = new Byte(getLogType(logicalLogLocator));
@@ -111,67 +152,101 @@
             case LogType.UPDATE:
                 logTypeDisplay = "UPDATE";
                 break;
+            case LogType.ENTITY_COMMIT:
+                logTypeDisplay = "ENTITY_COMMIT";
+                break;
         }
-        builder.append(" Log Type :" + logTypeDisplay);
-        builder.append(" Log Length :" + getLogLength(logicalLogLocator));
-        builder.append(" Log Timestamp:" + getLogTimestamp(logicalLogLocator));
-        builder.append(" Log Transaction Id:" + getLogTransactionId(logicalLogLocator));
-        builder.append(" Log Resource Mgr Id:" + getResourceMgrId(logicalLogLocator));
-        builder.append(" Page Id:" + getPageId(logicalLogLocator));
-        builder.append(" Log Checksum:" + getLogChecksum(logicalLogLocator));
-        builder.append(" Log Previous lsn: " + getPreviousLsnByTransaction(logicalLogLocator));
-        return new String(builder);
-    }
-
-    public void writeLogHeader(TransactionContext context, LogicalLogLocator logicalLogLocator, byte resourceMgrId,
-            long pageId, byte logType, byte logActionType, int logContentSize, long prevLogicalLogLocator) {
-        /* magic no */
-        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + BEGIN_MAGIC_NO_POS,
-                logManager.getLogManagerProperties().logMagicNumber);
-
-        /* length */
-        int length = logManager.getLogManagerProperties().getTotalLogRecordLength(logContentSize);
-        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + BEGING_LENGTH_POS, length);
-
-        /* log type */
-        (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + BEGIN_TYPE_POS, logType);
-
-        /* log action type */
-        (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + BEGIN_ACTION_TYPE_POS, logActionType);
-
-        /* timestamp */
-        long timestamp = System.currentTimeMillis();
-        (logicalLogLocator.getBuffer()).writeLong(logicalLogLocator.getMemoryOffset() + BEGIN_TIMESTAMP_POS, timestamp);
-
-        /* transaction id */
-        (logicalLogLocator.getBuffer()).writeLong(logicalLogLocator.getMemoryOffset() + BEGIN_TRANSACTION_ID_POS,
-                context.getTransactionID());
-
-        /* resource Mgr id */
-        (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + BEGIN_RESOURCE_MGR_ID_POS,
-                resourceMgrId);
-
-        /* page id */
-        (logicalLogLocator.getBuffer()).writeLong(logicalLogLocator.getMemoryOffset() + BEGIN_PAGE_ID_POS, pageId);
-
-        /* previous LSN's File Id by the transaction */
-        (logicalLogLocator.getBuffer()).writeLong(logicalLogLocator.getMemoryOffset() + BEGIN_PREV_LSN_POS,
-                prevLogicalLogLocator);
-    }
-
-    public void writeLogTail(LogicalLogLocator logicalLogLocator, ILogManager logManager) {
-        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset(),
-                logManager.getLogManagerProperties().logMagicNumber);
+        builder.append(" LSN : ").append(logicalLogLocator.getLsn());
+        builder.append(" Log Type : ").append(logTypeDisplay);
+        builder.append(" Job Id : ").append(getJobId(logicalLogLocator));
+        builder.append(" Dataset Id : ").append(getDatasetId(logicalLogLocator));
+        builder.append(" PK Hash Value : ").append(getPKHashValue(logicalLogLocator));
+        if (logType == LogType.UPDATE) {
+            builder.append(" PrevLSN : ").append(getPrevLSN(logicalLogLocator).getLsn());
+            builder.append(" Resource Id : ").append(getResourceId(logicalLogLocator));
+            builder.append(" ResourceMgr Id : ").append(getResourceMgrId(logicalLogLocator));
+            builder.append(" Log Record Size : ").append(
+                    getLogRecordSize(logType, getLogContentSize(logicalLogLocator)));
+        }
+        return builder.toString();
     }
 
     @Override
-    public boolean validateLogRecord(LogManagerProperties logManagerProperties, LogicalLogLocator logicalLogLocator) {
-        int logLength = this.getLogLength(logicalLogLocator);
+    public void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, TransactionContext context,
+            int datasetId, int PKHashValue, long prevLogicalLogLocator, long resourceId, byte resourceMgrId,
+            int logRecordSize) {
+
+        /* magic no */
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + MAGIC_NO_POS,
+                logManager.getLogManagerProperties().LOG_MAGIC_NUMBER);
+
+        /* log type */
+        (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + LOG_TYPE_POS, logType);
+
+        /* jobId */
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + JOB_ID_POS, context.getJobId()
+                .getId());
+
+        /* datasetId */
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + DATASET_ID_POS, datasetId);
+
+        /* PK hash value */
+        (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + PK_HASH_VALUE_POS, PKHashValue);
+
+        if (logType == LogType.UPDATE) {
+            /* prevLSN */
+            (logicalLogLocator.getBuffer()).writeLong(logicalLogLocator.getMemoryOffset() + PREV_LSN_POS,
+                    prevLogicalLogLocator);
+
+            /* resourceId */
+            (logicalLogLocator.getBuffer())
+                    .writeLong(logicalLogLocator.getMemoryOffset() + RESOURCE_ID_POS, resourceId);
+
+            /* resourceMgr id */
+            (logicalLogLocator.getBuffer()).put(logicalLogLocator.getMemoryOffset() + RESOURCE_MGR_ID_POS,
+                    resourceMgrId);
+
+            /* log record size */
+            (logicalLogLocator.getBuffer()).writeInt(logicalLogLocator.getMemoryOffset() + LOG_RECORD_SIZE_POS,
+                    logRecordSize);
+
+        }
+    }
+
+    @Override
+    public boolean validateLogRecord(LogicalLogLocator logicalLogLocator) {
+        int logLength = this.getLogRecordSize(getLogType(logicalLogLocator), getLogContentSize(logicalLogLocator));
         long expectedChecksum = DataUtil.getChecksum(logicalLogLocator.getBuffer(),
-                logicalLogLocator.getMemoryOffset(), logLength - logManagerProperties.getLogChecksumSize());
-        long actualChecksum = logicalLogLocator.getBuffer().readLong(
-                logicalLogLocator.getMemoryOffset() + logLength - logManagerProperties.getLogChecksumSize());
+                logicalLogLocator.getMemoryOffset(), logLength - LOG_CHECKSUM_SIZE);
+        long actualChecksum = getLogChecksum(logicalLogLocator);
         return expectedChecksum == actualChecksum;
     }
 
+    /**
+     * @param logType
+     * @param logBodySize
+     * @return
+     */
+    @Override
+    public int getLogRecordSize(byte logType, int logBodySize) {
+        if (logType == LogType.UPDATE) {
+            return 46 + logBodySize;
+        } else {
+            return 25;
+        }
+    }
+
+    @Override
+    public int getLogHeaderSize(byte logType) {
+        if (logType == LogType.UPDATE) {
+            return 38;
+        } else {
+            return 17;
+        }
+    }
+
+    @Override
+    public int getLogChecksumSize() {
+        return LOG_CHECKSUM_SIZE;
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
index 72b393d..96c6dba 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
@@ -18,8 +18,6 @@
 
     public static final byte UPDATE = 0;
     public static final byte COMMIT = 1;
-    public static final byte CLR = 2;
-    public static final byte BGN_CHPKT = 3;
-    public static final byte END_CHPKT = 4;
+    public static final byte ENTITY_COMMIT = 2;
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java
new file mode 100644
index 0000000..f4bb73a
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java
@@ -0,0 +1,54 @@
+package edu.uci.ics.asterix.transaction.management.service.recovery;
+
+import java.io.Serializable;
+
+public class CheckpointObject implements Serializable, Comparable<CheckpointObject> {
+
+    private static final long serialVersionUID = 1L;
+ 
+    private final long checkpointLSN;
+    private final long minMCTFirstLSN;
+    private final int maxJobId;
+    private final long timeStamp;
+
+    public CheckpointObject(long checkpointLSN, long minMCTFirstLSN, int maxJobId, long timeStamp) {
+        this.checkpointLSN = checkpointLSN;
+        this.minMCTFirstLSN = minMCTFirstLSN;
+        this.maxJobId = maxJobId;
+        this.timeStamp = timeStamp;
+    }
+    
+    public long getCheckpointLSN() {
+        return checkpointLSN;
+    }
+
+    public long getMinMCTFirstLSN() {
+        return minMCTFirstLSN;
+    }
+
+    public int getMaxJobId() {
+        return maxJobId;
+    }
+
+    public long getTimeStamp() {
+        return timeStamp;
+    }
+
+    @Override
+    public int compareTo(CheckpointObject checkpointObject) {
+        long compareTimeStamp = checkpointObject.getTimeStamp(); 
+        
+        //decending order
+        long diff = compareTimeStamp - this.timeStamp;
+        if (diff > 0) {
+            return 1;
+        } else if (diff == 0){
+            return 0;
+        } else {
+            return -1;
+        }
+ 
+        //ascending order
+        //return this.timeStamp - compareTimeStamp;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java
new file mode 100644
index 0000000..3eb87bc
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java
@@ -0,0 +1,66 @@
+package edu.uci.ics.asterix.transaction.management.service.recovery;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+
+public class CheckpointThread extends Thread {
+
+    private static final long LSN_THRESHOLD = 64 * 1024 * 1024;
+    private long checkpointTermInSecs = 120; //seconds.
+
+    private long lastMinMCTFirstLSN = 0;
+
+    private final IRecoveryManager recoveryMgr;
+    private final IIndexLifecycleManager indexLifecycleManager;
+
+    public CheckpointThread(IRecoveryManager recoveryMgr, IIndexLifecycleManager indexLifecycleManager,
+            long checkpointTermInSecs) {
+        this.recoveryMgr = recoveryMgr;
+        this.indexLifecycleManager = indexLifecycleManager;
+        if (this.checkpointTermInSecs < checkpointTermInSecs) {
+            this.checkpointTermInSecs = checkpointTermInSecs;
+        }
+    }
+
+    @Override
+    public void run() {
+        long currentMinMCTFirstLSN = 0;
+        while (true) {
+            try {
+                sleep(checkpointTermInSecs * 1000);
+            } catch (InterruptedException e) {
+                //ignore
+            }
+
+            currentMinMCTFirstLSN = getMinMCTFirstLSN();
+            if (currentMinMCTFirstLSN - lastMinMCTFirstLSN > LSN_THRESHOLD) {
+                try {
+                    recoveryMgr.checkpoint(false);
+                    lastMinMCTFirstLSN = currentMinMCTFirstLSN;
+                } catch (ACIDException e) {
+                    throw new Error("failed to checkpoint", e);
+                }
+            }
+        }
+    }
+
+    private long getMinMCTFirstLSN() {
+        List<IIndex> openIndexList = indexLifecycleManager.getOpenIndexes();
+        long minMCTFirstLSN = Long.MAX_VALUE;
+        long firstLSN;
+        if (openIndexList.size() > 0) {
+            for (IIndex index : openIndexList) {
+                firstLSN = ((IndexOperationTracker) ((ILSMIndex) index).getOperationTracker()).getFirstLSN();
+                minMCTFirstLSN = Math.min(minMCTFirstLSN, firstLSN);
+            }
+        } else {
+            minMCTFirstLSN = -1;
+        }
+        return minMCTFirstLSN;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
new file mode 100644
index 0000000..3ae7da8
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
@@ -0,0 +1,48 @@
+package edu.uci.ics.asterix.transaction.management.service.recovery;
+
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+
+public interface IAsterixAppRuntimeContextProvider {
+
+    public IBufferCache getBufferCache();
+
+    public IFileMapProvider getFileMapManager();
+
+    public TransactionSubsystem getTransactionSubsystem();
+
+    public IIndexLifecycleManager getIndexLifecycleManager();
+
+    public ILSMMergePolicy getLSMMergePolicy();
+
+    public ILSMOperationTrackerFactory getLSMBTreeOperationTrackerFactory();
+    
+    public ILSMOperationTrackerFactory getLSMRTreeOperationTrackerFactory();
+    
+    public ILSMOperationTrackerFactory getLSMInvertedIndexOperationTrackerFactory();
+    
+    public ILSMIOOperationCallbackProvider getLSMBTreeIOOperationCallbackProvider();
+    
+    public ILSMIOOperationCallbackProvider getLSMRTreeIOOperationCallbackProvider();
+    
+    public ILSMIOOperationCallbackProvider getLSMInvertedIndexIOOperationCallbackProvider();
+    
+    public ILSMIOOperationCallbackProvider getNoOpIOOperationCallbackProvider();
+    
+    public ILSMIOOperationScheduler getLSMIOScheduler();
+
+    public ILocalResourceRepository getLocalResourceRepository();
+
+    public ResourceIdFactory getResourceIdFactory();
+    
+    public IIOManager getIOManager();
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java
index 2e0fd47..38802a2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java
@@ -28,6 +28,7 @@
 public interface IRecoveryManager {
 
     public enum SystemState {
+        NEW_UNIVERSE,
         RECOVERING,
         HEALTHY,
         CORRUPTED
@@ -57,7 +58,7 @@
      *         recovery.
      * @throws ACIDException
      */
-    public SystemState startRecovery(boolean synchronous) throws IOException, ACIDException;
+    public void startRecovery(boolean synchronous) throws IOException, ACIDException;
 
     /**
      * Rolls back a transaction.
@@ -67,4 +68,6 @@
      * @throws ACIDException
      */
     public void rollbackTransaction(TransactionContext txnContext) throws ACIDException;
+
+    public void checkpoint(boolean isSharpCheckpoint) throws ACIDException;
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
index 085a9da..c27ae20 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
@@ -14,36 +14,66 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.recovery;
 
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
 import java.io.File;
-import java.io.FileReader;
-import java.io.FileWriter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FilenameFilter;
 import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.logging.FileUtil;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
+import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.service.logging.IBuffer;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogCursor;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogFilter;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogRecordHelper;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
+import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTreeImmutableComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BlockingIOOperationCallbackWrapper;
+import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexImmutableComponent;
+import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTreeImmutableComponent;
+import edu.uci.ics.hyracks.storage.am.rtree.impls.RTree;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
+import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.LocalResource;
 
 /**
  * This is the Recovery Manager and is responsible for rolling back a
@@ -53,208 +83,737 @@
  */
 public class RecoveryManager implements IRecoveryManager {
 
+    public static final boolean IS_DEBUG_MODE = false;//true
     private static final Logger LOGGER = Logger.getLogger(RecoveryManager.class.getName());
-    private TransactionProvider transactionProvider;
+    private final TransactionSubsystem txnSubsystem;
 
     /**
      * A file at a known location that contains the LSN of the last log record
      * traversed doing a successful checkpoint.
      */
-    private static final String checkpoint_record_file = "last_checkpoint_lsn";
+    private static final String CHECKPOINT_FILENAME_PREFIX = "checkpoint_";
     private SystemState state;
-    private Map<Long, TransactionTableEntry> transactionTable;
-    private Map<Long, List<PhysicalLogLocator>> dirtyPagesTable;
 
-    public RecoveryManager(TransactionProvider TransactionProvider) throws ACIDException {
-        this.transactionProvider = TransactionProvider;
-        try {
-            FileUtil.createFileIfNotExists(checkpoint_record_file);
-        } catch (IOException ioe) {
-            throw new ACIDException(" unable to create checkpoint record file " + checkpoint_record_file, ioe);
-        }
-    }
-
-    public SystemState getSystemState() throws ACIDException {
-        return state;
-    }
-
-    private PhysicalLogLocator getBeginRecoveryLSN() throws ACIDException {
-        return new PhysicalLogLocator(0, transactionProvider.getLogManager());
+    public RecoveryManager(TransactionSubsystem TransactionProvider) throws ACIDException {
+        this.txnSubsystem = TransactionProvider;
     }
 
     /**
-     * TODO:This method is currently not implemented completely.
+     * returns system state which could be one of the three states: HEALTHY, RECOVERING, CORRUPTED.
+     * This state information could be used in a case where more than one thread is running
+     * in the bootstrap process to provide higher availability. In other words, while the system
+     * is recovered, another thread may start a new transaction with understanding the side effect
+     * of the operation, or the system can be recovered concurrently. This kind of concurrency is
+     * not supported, yet.
      */
-    public SystemState startRecovery(boolean synchronous) throws IOException, ACIDException {
-        ILogManager logManager = transactionProvider.getLogManager();
-        state = SystemState.RECOVERING;
-        transactionTable = new HashMap<Long, TransactionTableEntry>();
-        dirtyPagesTable = new HashMap<Long, List<PhysicalLogLocator>>();
+    public SystemState getSystemState() throws ACIDException {
 
-        PhysicalLogLocator beginLSN = getBeginRecoveryLSN();
-        ILogCursor cursor = logManager.readLog(beginLSN, new ILogFilter() {
+        //#. read checkpoint file
+        CheckpointObject checkpointObject = null;
+        try {
+            checkpointObject = readCheckpoint();
+        } catch (FileNotFoundException e) {
+            //This is initial bootstrap. 
+            //Otherwise, the checkpoint file is deleted unfortunately. What we can do in this case?
+            state = SystemState.NEW_UNIVERSE;
+            return state;
+        }
+
+        //#. if minMCTFirstLSN is equal to -1 && 
+        //   checkpointLSN in the checkpoint file is equal to the lastLSN in the log file,
+        //   then return healthy state. Otherwise, return corrupted.
+        LogManager logMgr = (LogManager) txnSubsystem.getLogManager();
+        if (checkpointObject.getMinMCTFirstLSN() == -1
+                && checkpointObject.getCheckpointLSN() == logMgr.getCurrentLsn().get()) {
+            state = SystemState.HEALTHY;
+            return state;
+        } else {
+            state = SystemState.CORRUPTED;
+            return state;
+        }
+    }
+
+    public void startRecovery(boolean synchronous) throws IOException, ACIDException {
+
+        int updateLogCount = 0;
+        int commitLogCount = 0;
+        int redoCount = 0;
+
+        state = SystemState.RECOVERING;
+
+        ILogManager logManager = txnSubsystem.getLogManager();
+        ILogRecordHelper logRecordHelper = logManager.getLogRecordHelper();
+
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("[RecoveryMgr] starting recovery ...");
+        }
+
+        //winnerTxnTable is used to add pairs, <committed TxnId, the most recent commit LSN of the TxnId>
+        Map<TxnId, Long> winnerTxnTable = new HashMap<TxnId, Long>();
+        TxnId tempKeyTxnId = new TxnId(-1, -1, -1);
+        byte logType;
+
+        //#. read checkpoint file and set lowWaterMark where anaylsis and redo start
+        CheckpointObject checkpointObject = readCheckpoint();
+        long lowWaterMarkLSN = checkpointObject.getMinMCTFirstLSN();
+        if (lowWaterMarkLSN == -1) {
+            lowWaterMarkLSN = 0;
+        }
+        int maxJobId = checkpointObject.getMaxJobId();
+        int currentJobId;
+
+        //-------------------------------------------------------------------------
+        //  [ analysis phase ]
+        //  - collect all committed LSN 
+        //  - if there are duplicate commits for the same TxnId, 
+        //    keep only the mostRecentCommitLSN among the duplicates.
+        //-------------------------------------------------------------------------
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("[RecoveryMgr] in analysis phase");
+        }
+
+        //#. set log cursor to the lowWaterMarkLSN
+        ILogCursor logCursor = logManager.readLog(new PhysicalLogLocator(lowWaterMarkLSN, logManager),
+                new ILogFilter() {
+                    public boolean accept(IBuffer logs, long startOffset, int endOffset) {
+                        return true;
+                    }
+                });
+        LogicalLogLocator currentLogLocator = LogUtil.getDummyLogicalLogLocator(logManager);
+
+        //#. collect all committed txn's pairs,<TxnId, LSN>
+        while (logCursor.next(currentLogLocator)) {
+
+            if (LogManager.IS_DEBUG_MODE) {
+                System.out.println(logManager.getLogRecordHelper().getLogRecordForDisplay(currentLogLocator));
+            }
+
+            logType = logRecordHelper.getLogType(currentLogLocator);
+
+            //update max jobId
+            currentJobId = logRecordHelper.getJobId(currentLogLocator);
+            if (currentJobId > maxJobId) {
+                maxJobId = currentJobId;
+            }
+
+            TxnId commitTxnId = null;
+            switch (logType) {
+                case LogType.UPDATE:
+                    if (IS_DEBUG_MODE) {
+                        updateLogCount++;
+                    }
+                    break;
+
+                case LogType.COMMIT:
+                case LogType.ENTITY_COMMIT:
+                    commitTxnId = new TxnId(logRecordHelper.getJobId(currentLogLocator),
+                            logRecordHelper.getDatasetId(currentLogLocator),
+                            logRecordHelper.getPKHashValue(currentLogLocator));
+                    winnerTxnTable.put(commitTxnId, currentLogLocator.getLsn());
+                    if (IS_DEBUG_MODE) {
+                        commitLogCount++;
+                    }
+                    break;
+
+                default:
+                    throw new ACIDException("Unsupported LogType: " + logType);
+            }
+        }
+
+        //-------------------------------------------------------------------------
+        //  [ redo phase ]
+        //  - redo if
+        //    1) The TxnId is committed --> gurantee durability
+        //      &&  
+        //    2) the currentLSN > maxDiskLastLSN of the index --> guarantee idempotance
+        //-------------------------------------------------------------------------
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("[RecoveryMgr] in redo phase");
+        }
+        //#. set log cursor to the lowWaterMarkLSN again.
+        logCursor = logManager.readLog(new PhysicalLogLocator(lowWaterMarkLSN, logManager), new ILogFilter() {
             public boolean accept(IBuffer logs, long startOffset, int endOffset) {
                 return true;
             }
         });
-        LogicalLogLocator memLSN = new LogicalLogLocator(beginLSN.getLsn(), null, -1, logManager);
-        boolean logValidity = true;
-        LogRecordHelper parser = new LogRecordHelper(logManager);
-        try {
-            while (logValidity) {
-                logValidity = cursor.next(memLSN);
-                if (!logValidity) {
-                    if (LOGGER.isLoggable(Level.INFO)) {
-                        LOGGER.info("reached end of log !");
+        currentLogLocator = LogUtil.getDummyLogicalLogLocator(logManager);
+
+        long resourceId;
+        byte resourceMgrId;
+        long maxDiskLastLSN;
+        long currentLSN = -1;
+        int resourceType;
+        ILSMIndex index = null;
+        LocalResource localResource = null;
+        ILocalResourceMetadata localResourceMetadata = null;
+        Map<Long, Long> resourceId2MaxLSNMap = new HashMap<Long, Long>();
+        List<ILSMComponent> immutableDiskIndexList = null;
+        TxnId jobLevelTxnId = new TxnId(-1, -1, -1);
+        boolean foundWinnerTxn;
+
+        //#. get indexLifeCycleManager 
+        IAsterixAppRuntimeContextProvider appRuntimeContext = txnSubsystem.getAsterixAppRuntimeContextProvider();
+        IIndexLifecycleManager indexLifecycleManager = appRuntimeContext.getIndexLifecycleManager();
+        ILocalResourceRepository localResourceRepository = appRuntimeContext.getLocalResourceRepository();
+
+        //#. redo
+        while (logCursor.next(currentLogLocator)) {
+            foundWinnerTxn = false;
+            if (LogManager.IS_DEBUG_MODE) {
+                System.out.println(logManager.getLogRecordHelper().getLogRecordForDisplay(currentLogLocator));
+            }
+
+            logType = logRecordHelper.getLogType(currentLogLocator);
+
+            switch (logType) {
+                case LogType.UPDATE:
+                    tempKeyTxnId.setTxnId(logRecordHelper.getJobId(currentLogLocator),
+                            logRecordHelper.getDatasetId(currentLogLocator),
+                            logRecordHelper.getPKHashValue(currentLogLocator));
+                    jobLevelTxnId.setTxnId(logRecordHelper.getJobId(currentLogLocator), -1, -1);
+                    if (winnerTxnTable.containsKey(tempKeyTxnId)) {
+                        currentLSN = winnerTxnTable.get(tempKeyTxnId);
+                        foundWinnerTxn = true;
+                    } else if (winnerTxnTable.containsKey(jobLevelTxnId)) {
+                        currentLSN = winnerTxnTable.get(jobLevelTxnId);
+                        foundWinnerTxn = true;
+                    }
+
+                    if (foundWinnerTxn) {
+                        resourceId = logRecordHelper.getResourceId(currentLogLocator);
+                        localResource = localResourceRepository.getResourceById(resourceId);
+
+                        //get index instance from IndexLifeCycleManager
+                        //if index is not registered into IndexLifeCycleManager,
+                        //create the index using LocalMetadata stored in LocalResourceRepository
+                        index = (ILSMIndex) indexLifecycleManager.getIndex(resourceId);
+                        if (index == null) {
+
+                            /*******************************************************************
+                             * [Notice]
+                             * -> Issue
+                             * Delete index may cause a problem during redo.
+                             * The index operation to be redone couldn't be redone because the corresponding index
+                             * may not exist in NC due to the possible index drop DDL operation.
+                             * -> Approach
+                             * Avoid the problem during redo.
+                             * More specifically, the problem will be detected when the localResource of
+                             * the corresponding index is retrieved, which will end up with 'null' return from
+                             * localResourceRepository. If null is returned, then just go and process the next
+                             * log record.
+                             *******************************************************************/
+                            if (localResource == null) {
+                                continue;
+                            }
+                            /*******************************************************************/
+
+                            //#. create index instance and register to indexLifeCycleManager
+                            localResourceMetadata = (ILocalResourceMetadata) localResource.getResourceObject();
+                            index = localResourceMetadata.createIndexInstance(appRuntimeContext,
+                                    localResource.getResourceName(), localResource.getPartition());
+                            indexLifecycleManager.register(resourceId, index);
+                            indexLifecycleManager.open(resourceId);
+
+                            //#. get maxDiskLastLSN
+                            resourceType = localResource.getResourceType();
+                            immutableDiskIndexList = index.getImmutableComponents();
+
+                            maxDiskLastLSN = -1;
+                            switch (resourceType) {
+
+                                case ResourceType.LSM_BTREE:
+                                    for (ILSMComponent c : immutableDiskIndexList) {
+                                        BTree btree = ((LSMBTreeImmutableComponent) c).getBTree();
+                                        maxDiskLastLSN = Math.max(getTreeIndexLSN(btree), maxDiskLastLSN);
+                                    }
+                                    break;
+
+                                case ResourceType.LSM_RTREE:
+                                    for (ILSMComponent c : immutableDiskIndexList) {
+                                        RTree rtree = ((LSMRTreeImmutableComponent) c).getRTree();
+                                        maxDiskLastLSN = Math.max(getTreeIndexLSN(rtree), maxDiskLastLSN);
+                                    }
+                                    break;
+
+                                case ResourceType.LSM_INVERTED_INDEX:
+                                    for (ILSMComponent c : immutableDiskIndexList) {
+                                        BTree delKeyBtree = ((LSMInvertedIndexImmutableComponent) c)
+                                                .getDeletedKeysBTree();
+                                        maxDiskLastLSN = Math.max(getTreeIndexLSN(delKeyBtree), maxDiskLastLSN);
+                                    }
+                                    break;
+
+                                default:
+                                    throw new ACIDException("Unsupported resouce type");
+                            }
+
+                            //#. set resourceId and maxDiskLastLSN to the map
+                            resourceId2MaxLSNMap.put(resourceId, maxDiskLastLSN);
+                        } else {
+                            maxDiskLastLSN = resourceId2MaxLSNMap.get(resourceId);
+                        }
+
+                        if (currentLSN > maxDiskLastLSN) {
+                            resourceMgrId = logRecordHelper.getResourceMgrId(currentLogLocator);
+
+                            // look up the repository to get the resource manager
+                            // register resourceMgr if it is not registered. 
+                            IResourceManager resourceMgr = txnSubsystem.getTransactionalResourceRepository()
+                                    .getTransactionalResourceMgr(resourceMgrId);
+                            if (resourceMgr == null) {
+                                resourceMgr = new IndexResourceManager(resourceMgrId, txnSubsystem);
+                                txnSubsystem.getTransactionalResourceRepository().registerTransactionalResourceManager(
+                                        resourceMgrId, resourceMgr);
+                            }
+
+                            //redo finally.
+                            resourceMgr.redo(logRecordHelper, currentLogLocator);
+                            if (IS_DEBUG_MODE) {
+                                redoCount++;
+                            }
+                        }
                     }
                     break;
+
+                case LogType.COMMIT:
+                case LogType.ENTITY_COMMIT:
+                    //do nothing
+                    break;
+
+                default:
+                    throw new ACIDException("Unsupported LogType: " + logType);
+            }
+        }
+
+        //close all indexes
+        Set<Long> resourceIdList = resourceId2MaxLSNMap.keySet();
+        for (long r : resourceIdList) {
+            indexLifecycleManager.close(r);
+        }
+
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("[RecoveryMgr] recovery is over");
+        }
+        if (IS_DEBUG_MODE) {
+            System.out.println("[RecoveryMgr] Count: Update/Commit/Redo = " + updateLogCount + "/" + commitLogCount
+                    + "/" + redoCount);
+        }
+    }
+
+    //TODO
+    //This function came from the AbstractLSMIOOperationCallback class. 
+    //We'd better factor out this function into a component of reading/writing the local metadata of indexes.
+    private long getTreeIndexLSN(ITreeIndex treeIndex) throws HyracksDataException {
+        int fileId = treeIndex.getFileId();
+        IBufferCache bufferCache = treeIndex.getBufferCache();
+        ITreeIndexMetaDataFrame metadataFrame = treeIndex.getFreePageManager().getMetaDataFrameFactory().createFrame();
+        int metadataPageId = treeIndex.getFreePageManager().getFirstMetadataPage();
+        ICachedPage metadataPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, metadataPageId), false);
+        metadataPage.acquireReadLatch();
+        try {
+            metadataFrame.setPage(metadataPage);
+            return metadataFrame.getLSN();
+        } finally {
+            metadataPage.releaseReadLatch();
+            bufferCache.unpin(metadataPage);
+        }
+    }
+
+    @Override
+    public synchronized void checkpoint(boolean isSharpCheckpoint) throws ACIDException {
+
+        LogManager logMgr = (LogManager) txnSubsystem.getLogManager();
+        TransactionManager txnMgr = (TransactionManager) txnSubsystem.getTransactionManager();
+        String logDir = logMgr.getLogManagerProperties().getLogDir();
+
+        //#. get the filename of the previous checkpoint files which are about to be deleted 
+        //   right after the new checkpoint file is written.
+        File[] prevCheckpointFiles = getPreviousCheckpointFiles();
+
+        IIndexLifecycleManager indexLifecycleManager = txnSubsystem.getAsterixAppRuntimeContextProvider()
+                .getIndexLifecycleManager();
+        List<IIndex> openIndexList = indexLifecycleManager.getOpenIndexes();
+        List<BlockingIOOperationCallbackWrapper> callbackList = new LinkedList<BlockingIOOperationCallbackWrapper>();
+
+        //#. flush all in-memory components if it is the sharp checkpoint
+        if (isSharpCheckpoint) {
+            for (IIndex index : openIndexList) {
+                ILSMIndex lsmIndex = (ILSMIndex) index;
+                ILSMIndexAccessor indexAccessor = lsmIndex.createAccessor(NoOpOperationCallback.INSTANCE,
+                        NoOpOperationCallback.INSTANCE);
+                IndexOperationTracker indexOpTracker = (IndexOperationTracker) lsmIndex.getOperationTracker();
+                BlockingIOOperationCallbackWrapper cb = new BlockingIOOperationCallbackWrapper(
+                        indexOpTracker.getIOOperationCallback());
+                callbackList.add(cb);
+                try {
+                    indexAccessor.scheduleFlush(cb);
+                } catch (HyracksDataException e) {
+                    throw new ACIDException(e);
                 }
-                byte resourceMgrId = parser.getResourceMgrId(memLSN);
-                IResourceManager resourceMgr = TransactionalResourceRepository
-                        .getTransactionalResourceMgr(resourceMgrId);
-                if (resourceMgr == null) {
-                    throw new ACIDException("unknown resource mgr with id " + resourceMgrId);
-                } else {
-                    byte actionType = parser.getLogActionType(memLSN);
-                    switch (actionType) {
-                        case LogActionType.REDO:
-                            resourceMgr.redo(parser, memLSN);
-                            break;
-                        case LogActionType.UNDO: /* skip these records */
-                            break;
-                        default: /* do nothing */
+            }
+
+            for (BlockingIOOperationCallbackWrapper cb : callbackList) {
+                try {
+                    cb.waitForIO();
+                } catch (InterruptedException e) {
+                    throw new ACIDException(e);
+                }
+            }
+        }
+
+        //#. create and store the checkpointObject into the new checkpoint file
+        long minMCTFirstLSN = Long.MAX_VALUE;
+        long firstLSN;
+        if (openIndexList.size() > 0) {
+            for (IIndex index : openIndexList) {
+                firstLSN = ((IndexOperationTracker) ((ILSMIndex) index).getOperationTracker()).getFirstLSN();
+                minMCTFirstLSN = Math.min(minMCTFirstLSN, firstLSN);
+            }
+        } else {
+            minMCTFirstLSN = -1;
+        }
+
+        CheckpointObject checkpointObject = new CheckpointObject(logMgr.getCurrentLsn().get(), minMCTFirstLSN,
+                txnMgr.getMaxJobId(), System.currentTimeMillis());
+
+        FileOutputStream fos = null;
+        ObjectOutputStream oosToFos = null;
+        try {
+            String fileName = getFileName(logDir, Long.toString(checkpointObject.getTimeStamp()));
+            fos = new FileOutputStream(fileName);
+            oosToFos = new ObjectOutputStream(fos);
+            oosToFos.writeObject(checkpointObject);
+            oosToFos.flush();
+        } catch (IOException e) {
+            throw new ACIDException("Failed to checkpoint", e);
+        } finally {
+            if (oosToFos != null) {
+                try {
+                    oosToFos.close();
+                } catch (IOException e) {
+                    throw new ACIDException("Failed to checkpoint", e);
+                }
+            }
+            if (oosToFos == null && fos != null) {
+                try {
+                    fos.close();
+                } catch (IOException e) {
+                    throw new ACIDException("Failed to checkpoint", e);
+                }
+            }
+        }
+
+        //#. delete the previous checkpoint files
+        if (prevCheckpointFiles != null) {
+            for (File file : prevCheckpointFiles) {
+                file.delete();
+            }
+        }
+
+        if (isSharpCheckpoint) {
+            logMgr.renewLogFiles();
+        }
+    }
+
+    private CheckpointObject readCheckpoint() throws ACIDException, FileNotFoundException {
+
+        CheckpointObject checkpointObject = null;
+
+        //#. read all checkpointObjects from the existing checkpoint files
+        File[] prevCheckpointFiles = getPreviousCheckpointFiles();
+
+        if (prevCheckpointFiles == null || prevCheckpointFiles.length == 0) {
+            throw new FileNotFoundException("Checkpoint file is not found");
+        }
+
+        List<CheckpointObject> checkpointObjectList = new ArrayList<CheckpointObject>();
+
+        for (File file : prevCheckpointFiles) {
+            FileInputStream fis = null;
+            ObjectInputStream oisFromFis = null;
+
+            try {
+                fis = new FileInputStream(file);
+                oisFromFis = new ObjectInputStream(fis);
+                checkpointObject = (CheckpointObject) oisFromFis.readObject();
+                checkpointObjectList.add(checkpointObject);
+            } catch (Exception e) {
+                throw new ACIDException("Failed to read a checkpoint file", e);
+            } finally {
+                if (oisFromFis != null) {
+                    try {
+                        oisFromFis.close();
+                    } catch (IOException e) {
+                        throw new ACIDException("Failed to read a checkpoint file", e);
                     }
                 }
-                writeCheckpointRecord(memLSN.getLsn());
+                if (oisFromFis == null && fis != null) {
+                    try {
+                        fis.close();
+                    } catch (IOException e) {
+                        throw new ACIDException("Failed to read a checkpoint file", e);
+                    }
+                }
             }
-            state = SystemState.HEALTHY;
-        } catch (Exception e) {
-            state = SystemState.CORRUPTED;
-            throw new ACIDException(" could not recover , corrputed log !", e);
         }
-        return state;
+
+        //#. sort checkpointObjects in descending order by timeStamp to find out the most recent one.
+        Collections.sort(checkpointObjectList);
+
+        //#. return the most recent one (the first one in sorted list)
+        return checkpointObjectList.get(0);
     }
 
-    private void writeCheckpointRecord(long lsn) throws ACIDException {
-        try {
-            FileWriter writer = new FileWriter(new File(checkpoint_record_file));
-            BufferedWriter buffWriter = new BufferedWriter(writer);
-            buffWriter.write("" + lsn);
-            buffWriter.flush();
-        } catch (IOException ioe) {
-            throw new ACIDException(" unable to create check point record", ioe);
-        }
+    private File[] getPreviousCheckpointFiles() {
+        String logDir = txnSubsystem.getLogManager().getLogManagerProperties().getLogDir();
+
+        File parentDir = new File(logDir);
+
+        FilenameFilter filter = new FilenameFilter() {
+            @Override
+            public boolean accept(File dir, String name) {
+                if (name.contains(CHECKPOINT_FILENAME_PREFIX)) {
+                    return true;
+                } else {
+                    return false;
+                }
+            }
+        };
+
+        File[] prevCheckpointFiles = parentDir.listFiles(filter);
+
+        return prevCheckpointFiles;
     }
 
-    /*
-     * Currently this method is not used, but will be used as part of crash
-     * recovery logic.
-     */
-    private long getLastCheckpointRecordLSN() throws Exception {
-        FileReader reader;
-        BufferedReader buffReader;
-        String content = null;
-        reader = new FileReader(new File(checkpoint_record_file));
-        buffReader = new BufferedReader(reader);
-        content = buffReader.readLine();
-        if (content != null) {
-            return Long.parseLong(content);
+    private String getFileName(String baseDir, String suffix) {
+
+        if (!baseDir.endsWith(System.getProperty("file.separator"))) {
+            baseDir += System.getProperty("file.separator");
         }
-        return -1;
+
+        return baseDir + CHECKPOINT_FILENAME_PREFIX + suffix;
     }
 
     /**
-     * Rollback a transaction (non-Javadoc)
+     * Rollback a transaction
      * 
-     * @see edu.uci.ics.transaction.management.service.recovery.IRecoveryManager# rollbackTransaction (edu.uci.ics.transaction.management.service.transaction .TransactionContext)
+     * @see edu.uci.ics.transaction.management.service.recovery.IRecoveryManager# rollbackTransaction (edu.uci.ics.TransactionContext.management.service.transaction .TransactionContext)
      */
     @Override
     public void rollbackTransaction(TransactionContext txnContext) throws ACIDException {
-        ILogManager logManager = transactionProvider.getLogManager();
-        ILogRecordHelper parser = logManager.getLogRecordHelper();
+        ILogManager logManager = txnSubsystem.getLogManager();
+        ILogRecordHelper logRecordHelper = logManager.getLogRecordHelper();
+        Map<TxnId, List<Long>> loserTxnTable = new HashMap<TxnId, List<Long>>();
+        TxnId tempKeyTxnId = new TxnId(-1, -1, -1);
 
-        // Obtain the last log record written by the transaction
-        PhysicalLogLocator lsn = txnContext.getLastLogLocator();
+        int updateLogCount = 0;
+        int commitLogCount = 0;
+
+        // Obtain the first log record written by the Job
+        PhysicalLogLocator firstLSNLogLocator = txnContext.getFirstLogLocator();
+        PhysicalLogLocator lastLSNLogLocator = txnContext.getLastLogLocator();
         if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info(" rollbacking transaction log records at lsn " + lsn.getLsn());
+            LOGGER.info(" rollbacking transaction log records from " + firstLSNLogLocator.getLsn() + " to "
+                    + lastLSNLogLocator.getLsn());
         }
 
         // check if the transaction actually wrote some logs.
-        if (lsn.getLsn() == TransactionManagementConstants.LogManagerConstants.TERMINAL_LSN) {
+        if (firstLSNLogLocator.getLsn() == TransactionManagementConstants.LogManagerConstants.TERMINAL_LSN) {
             if (LOGGER.isLoggable(Level.INFO)) {
                 LOGGER.info(" no need to roll back as there were no operations by the transaction "
-                        + txnContext.getTransactionID());
+                        + txnContext.getJobId());
             }
             return;
         }
 
-        // a dummy logLocator instance that is re-used during rollback
-        LogicalLogLocator logLocator = LogUtil.getDummyLogicalLogLocator(logManager);
+        // While reading log records from firstLSN to lastLSN, collect uncommitted txn's LSNs 
+        ILogCursor logCursor;
+        try {
+            logCursor = logManager.readLog(firstLSNLogLocator, new ILogFilter() {
+                @Override
+                public boolean accept(IBuffer buffer, long startOffset, int length) {
+                    return true;
+                }
+            });
+        } catch (IOException e) {
+            throw new ACIDException("Failed to create LogCursor with LSN:" + firstLSNLogLocator.getLsn(), e);
+        }
 
-        while (true) {
+        LogicalLogLocator currentLogLocator = LogUtil.getDummyLogicalLogLocator(logManager);
+        boolean valid;
+        byte logType;
+        List<Long> undoLSNSet = null;
+
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" collecting loser transaction's LSNs from " + firstLSNLogLocator.getLsn() + " to "
+                    + +lastLSNLogLocator.getLsn());
+        }
+
+        while (currentLogLocator.getLsn() != lastLSNLogLocator.getLsn()) {
             try {
-                // read the log record at the given position
-                logLocator = logManager.readLog(lsn);
-            } catch (Exception e) {
-                e.printStackTrace();
-                state = SystemState.CORRUPTED;
-                throw new ACIDException(" could not read log at lsn :" + lsn, e);
+                valid = logCursor.next(currentLogLocator);
+            } catch (IOException e) {
+                throw new ACIDException("Failed to read log at LSN:" + currentLogLocator.getLsn(), e);
+            }
+            if (!valid) {
+                if (currentLogLocator.getLsn() != lastLSNLogLocator.getLsn()) {
+                    throw new ACIDException("LastLSN mismatch: " + lastLSNLogLocator.getLsn() + " vs "
+                            + currentLogLocator.getLsn() + " during Rollback a transaction( " + txnContext.getJobId()
+                            + ")");
+                } else {
+                    break;//End of Log File
+                }
             }
 
-            byte logType = parser.getLogType(logLocator);
-            if (LOGGER.isLoggable(Level.FINE)) {
-                LOGGER.fine(" reading LSN value inside rollback transaction method " + txnContext.getLastLogLocator()
-                        + " txn id " + parser.getLogTransactionId(logLocator) + " log type  " + logType);
+            if (IS_DEBUG_MODE) {
+                System.out.println(logManager.getLogRecordHelper().getLogRecordForDisplay(currentLogLocator));
             }
 
+            tempKeyTxnId.setTxnId(logRecordHelper.getJobId(currentLogLocator),
+                    logRecordHelper.getDatasetId(currentLogLocator), logRecordHelper.getPKHashValue(currentLogLocator));
+            logType = logRecordHelper.getLogType(currentLogLocator);
+
             switch (logType) {
                 case LogType.UPDATE:
-
-                    // extract the resource manager id from the log record.
-                    byte resourceMgrId = parser.getResourceMgrId(logLocator);
-                    if (LOGGER.isLoggable(Level.FINE)) {
-                        LOGGER.fine(parser.getLogRecordForDisplay(logLocator));
+                    undoLSNSet = loserTxnTable.get(tempKeyTxnId);
+                    if (undoLSNSet == null) {
+                        TxnId txnId = new TxnId(logRecordHelper.getJobId(currentLogLocator),
+                                logRecordHelper.getDatasetId(currentLogLocator),
+                                logRecordHelper.getPKHashValue(currentLogLocator));
+                        undoLSNSet = new LinkedList<Long>();
+                        loserTxnTable.put(txnId, undoLSNSet);
                     }
-
-                    // look up the repository to get the resource manager
-                    IResourceManager resourceMgr = TransactionalResourceRepository
-                            .getTransactionalResourceMgr(resourceMgrId);
-                    if (resourceMgr == null) {
-                        throw new ACIDException(txnContext, " unknown resource manager " + resourceMgrId);
-                    } else {
-                        byte actionType = parser.getLogActionType(logLocator);
-                        switch (actionType) {
-                            case LogActionType.REDO: // no need to do anything
-                                break;
-                            case LogActionType.UNDO: // undo the log record
-                                resourceMgr.undo(parser, logLocator);
-                                break;
-                            case LogActionType.REDO_UNDO: // undo log record
-                                resourceMgr.undo(parser, logLocator);
-                                break;
-                            default:
-                        }
+                    undoLSNSet.add(currentLogLocator.getLsn());
+                    if (IS_DEBUG_MODE) {
+                        updateLogCount++;
+                        System.out.println("" + Thread.currentThread().getId() + "======> update["
+                                + currentLogLocator.getLsn() + "]:" + tempKeyTxnId);
                     }
-                case LogType.CLR: // skip the CLRs as they are not undone
                     break;
+
                 case LogType.COMMIT:
-                    throw new ACIDException(txnContext, " cannot rollback commmitted transaction");
+                case LogType.ENTITY_COMMIT:
+                    undoLSNSet = loserTxnTable.get(tempKeyTxnId);
+                    if (undoLSNSet != null) {
+                        loserTxnTable.remove(tempKeyTxnId);
+                    }
+                    if (IS_DEBUG_MODE) {
+                        commitLogCount++;
+                        System.out.println("" + Thread.currentThread().getId() + "======> commit["
+                                + currentLogLocator.getLsn() + "]" + tempKeyTxnId);
+                    }
+                    break;
 
-            }
-
-            // follow the previous LSN pointer to get the previous log record
-            // written by the transaction
-            // If the return value is true, the logLocator, it indicates that
-            // the logLocator object has been
-            // appropriately set to the location of the next log record to be
-            // processed as part of the roll back
-            boolean moreLogs = parser.getPreviousLsnByTransaction(lsn, logLocator);
-            if (!moreLogs) {
-                // no more logs to process
-                break;
+                default:
+                    throw new ACIDException("Unsupported LogType: " + logType);
             }
         }
 
+        //undo loserTxn's effect
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" undoing loser transaction's effect");
+        }
+
+        TxnId txnId = null;
+        Iterator<Entry<TxnId, List<Long>>> iter = loserTxnTable.entrySet().iterator();
+        byte resourceMgrId;
+        int undoCount = 0;
+        while (iter.hasNext()) {
+            //TODO 
+            //Sort the lsns in order to undo in one pass. 
+
+            Map.Entry<TxnId, List<Long>> loserTxn = (Map.Entry<TxnId, List<Long>>) iter.next();
+            txnId = loserTxn.getKey();
+
+            undoLSNSet = loserTxn.getValue();
+
+            for (long undoLSN : undoLSNSet) {
+                // here, all the log records are UPDATE type. So, we don't need to check the type again.
+
+                //read the corresponding log record to be undone.
+                logManager.readLog(undoLSN, currentLogLocator);
+
+                if (IS_DEBUG_MODE) {
+                    System.out.println(logManager.getLogRecordHelper().getLogRecordForDisplay(currentLogLocator));
+                }
+
+                // extract the resource manager id from the log record.
+                resourceMgrId = logRecordHelper.getResourceMgrId(currentLogLocator);
+                if (LOGGER.isLoggable(Level.FINE)) {
+                    LOGGER.fine(logRecordHelper.getLogRecordForDisplay(currentLogLocator));
+                }
+
+                // look up the repository to get the resource manager
+                IResourceManager resourceMgr = txnSubsystem.getTransactionalResourceRepository()
+                        .getTransactionalResourceMgr(resourceMgrId);
+
+                // register resourceMgr if it is not registered. 
+                if (resourceMgr == null) {
+                    resourceMgr = new IndexResourceManager(resourceMgrId, txnSubsystem);
+                    txnSubsystem.getTransactionalResourceRepository().registerTransactionalResourceManager(
+                            resourceMgrId, resourceMgr);
+                }
+                resourceMgr.undo(logRecordHelper, currentLogLocator);
+
+                if (IS_DEBUG_MODE) {
+                    undoCount++;
+                }
+            }
+        }
+
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" undone loser transaction's effect");
+        }
+        if (IS_DEBUG_MODE) {
+            System.out.println("UpdateLogCount/CommitLogCount/UndoCount:" + updateLogCount + "/" + commitLogCount + "/"
+                    + undoCount);
+        }
+    }
+}
+
+class TxnId {
+    public int jobId;
+    public int datasetId;
+    public int pkHashVal;
+
+    public TxnId(int jobId, int datasetId, int pkHashVal) {
+        this.jobId = jobId;
+        this.datasetId = datasetId;
+        this.pkHashVal = pkHashVal;
     }
 
+    public void setTxnId(int jobId, int datasetId, int pkHashVal) {
+        this.jobId = jobId;
+        this.datasetId = datasetId;
+        this.pkHashVal = pkHashVal;
+    }
+
+    public void setTxnId(TxnId txnId) {
+        this.jobId = txnId.jobId;
+        this.datasetId = txnId.datasetId;
+        this.pkHashVal = txnId.pkHashVal;
+    }
+
+    @Override
+    public String toString() {
+        return "[" + jobId + "," + datasetId + "," + pkHashVal + "]";
+    }
+
+    @Override
+    public int hashCode() {
+        return pkHashVal;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == this) {
+            return true;
+        }
+        if (!(o instanceof TxnId)) {
+            return false;
+        }
+        TxnId txnId = (TxnId) o;
+
+        return (txnId.pkHashVal == pkHashVal && txnId.datasetId == datasetId && txnId.jobId == jobId);
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java
new file mode 100644
index 0000000..9aded2a
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java
@@ -0,0 +1,32 @@
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import java.io.Serializable;
+
+public class DatasetId implements Serializable {
+    int id;
+
+    public DatasetId(int id) {
+        this.id = id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    @Override
+    public int hashCode() {
+        return id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if ((o == null) || !(o instanceof DatasetId)) {
+            return false;
+        }
+        return ((DatasetId) o).id == this.id;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java
new file mode 100644
index 0000000..65512ec
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java
@@ -0,0 +1,15 @@
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class DatasetIdFactory {
+    private static AtomicInteger id = new AtomicInteger();
+    
+    public static void initialize(int initialId) {
+    	id.set(initialId);
+    }
+
+    public static int generateDatasetId() {
+        return id.incrementAndGet();
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java
new file mode 100644
index 0000000..d4f15d9
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+public class FieldsHashValueGenerator {
+    public static int computeFieldsHashValue(ITupleReference tuple, int[] fieldIndexes,
+            IBinaryHashFunction[] fieldHashFunctions) {
+        int h = 0;
+        for (int i = 0; i < fieldIndexes.length; i++) {
+            int primaryKeyFieldIdx = fieldIndexes[i];
+            int fh = fieldHashFunctions[i].hash(tuple.getFieldData(primaryKeyFieldIdx),
+                    tuple.getFieldStart(primaryKeyFieldIdx), tuple.getFieldLength(primaryKeyFieldIdx));
+            h = h * 31 + fh;
+            if (h < 0) {
+                h = h*(-1);
+            }
+        }
+        return h;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java
index 200527f..f7715e8 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java
@@ -22,6 +22,12 @@
  * Provides APIs for undo or redo of an operation on a resource.
  */
 public interface IResourceManager {
+    
+    public class ResourceType {
+        public static final byte LSM_BTREE = 1;
+        public static final byte LSM_RTREE = 2;
+        public static final byte LSM_INVERTED_INDEX = 3;
+    }
 
     /**
      * Returns the unique identifier for the resource manager.
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java
index d7078bd..3f55ac9 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java
@@ -40,46 +40,50 @@
      * Begins a transaction identified by a transaction id and returns the
      * associated transaction context.
      * 
-     * @param transactionId
+     * @param jobId
      *            a unique value for the transaction id.
      * @return the transaction context associated with the initiated transaction
      * @see TransactionContext
      * @throws ACIDException
      */
-    public TransactionContext beginTransaction(long transactionId) throws ACIDException;
+    public TransactionContext beginTransaction(JobId jobId) throws ACIDException;
 
     /**
      * Returns the transaction context of an active transaction given the
      * transaction id.
      * 
-     * @param transactionId
+     * @param jobId
      *            a unique value for the transaction id.
      * @return
      * @throws ACIDException
      */
-    public TransactionContext getTransactionContext(long transactionId) throws ACIDException;
+    public TransactionContext getTransactionContext(JobId jobId) throws ACIDException;
 
     /**
      * Commits a transaction.
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
+     * @param datasetId TODO
+     * @param PKHashVal TODO
      * @throws ACIDException
-     * @see transactionContext
+     * @see transactionContextimport edu.uci.ics.hyracks.api.job.JobId;
      * @see ACIDException
      */
-    public void commitTransaction(TransactionContext txnContext) throws ACIDException;
+    public void commitTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal) throws ACIDException;
 
     /**
      * Aborts a transaction.
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
+     * @param datasetId TODO
+     * @param PKHashVal TODO
      * @throws ACIDException
      * @see transactionContext
      * @see ACIDException
      */
-    public void abortTransaction(TransactionContext txnContext) throws ACIDException;
+    public void abortTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal) throws ACIDException;
 
     /**
      * Indicates end of all activity for a transaction. In other words, all
@@ -88,36 +92,23 @@
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
+     * @param datasetId TODO
+     * @param PKHashVal TODO
      * @param success
      *            indicates the success or failure. The transaction is committed
      *            or aborted accordingly.
      * @throws ACIDException
      */
-    public void completedTransaction(TransactionContext txnContext, boolean success) throws ACIDException;
-
-    /**
-     * Associates a resource manager with a transaction. In a distributed
-     * transaction multiple resource managers can join a transaction and
-     * participate in a two phase commit protocol. This method is not used
-     * currently as we do not support distributed transactions.
-     * 
-     * @param txnContext
-     *            the transaction context associated with the transaction
-     * @param resourceMgrID
-     *            a unique identifier for the resource manager.
-     * @see IResourceManager
-     * @throws ACIDException
-     */
-    public void joinTransaction(TransactionContext txnContext, byte[] resourceMgrID) throws ACIDException;
+    public void completedTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success) throws ACIDException;
 
     /**
      * Returns the Transaction Provider for the transaction eco-system. A
      * transaction eco-system consists of a Log Manager, a Recovery Manager, a
      * Transaction Manager and a Lock Manager.
      * 
-     * @see TransactionProvider
+     * @see TransactionSubsystem
      * @return TransactionProvider
      */
-    public TransactionProvider getTransactionProvider();
+    public TransactionSubsystem getTransactionProvider();
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java
new file mode 100644
index 0000000..857d8ae
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public interface ITransactionSubsystemProvider extends Serializable{
+    public TransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx);
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java
new file mode 100644
index 0000000..d306670
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java
@@ -0,0 +1,42 @@
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import java.io.Serializable;
+
+public class JobId implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private int id;
+
+    public JobId(int id) {
+        this.id = id;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    @Override
+    public int hashCode() {
+        return id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == this) {
+            return true;
+        }
+        if (!(o instanceof JobId)) {
+            return false;
+        }
+        return ((JobId) o).id == id;
+    }
+
+    @Override
+    public String toString() {
+        return "JID:" + id;
+    }
+
+	public void setId(int jobId) {
+		id = jobId;
+	}
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
new file mode 100644
index 0000000..cac4f8e
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Represents a factory to generate unique transaction IDs.
+ */
+public class JobIdFactory {
+    private static final AtomicInteger Id = new AtomicInteger();
+
+    public static JobId generateJobId() {
+        return new JobId(Id.incrementAndGet());
+    }
+    
+    public static void initJobId(int id) {
+        Id.set(id);
+    }
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java
new file mode 100644
index 0000000..5552930
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java
@@ -0,0 +1,30 @@
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+public class MutableResourceId{
+    long id;
+
+    public MutableResourceId(long id) {
+        this.id = id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    @Override
+    public int hashCode() {
+        return (int)id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if ((o == null) || !(o instanceof MutableResourceId)) {
+            return false;
+        }
+        return ((MutableResourceId) o).id == this.id;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
index e37f892..5b01edf 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
@@ -15,14 +15,23 @@
 package edu.uci.ics.asterix.transaction.management.service.transaction;
 
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
+import java.util.concurrent.atomic.AtomicInteger;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.AbstractOperationCallback;
+import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
 import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMOperationType;
 
 /**
  * Represents a holder object that contains all information related to a
@@ -36,7 +45,7 @@
     public static final long INVALID_TIME = -1l; // used for showing a
     // transaction is not waiting.
     public static final int ACTIVE_STATUS = 0;
-    public static final int TIMED_OUT_SATUS = 1;
+    public static final int TIMED_OUT_STATUS = 1;
 
     public enum TransactionType {
         READ,
@@ -44,14 +53,62 @@
     }
 
     private static final long serialVersionUID = -6105616785783310111L;
-    private TransactionProvider transactionProvider;
-    private long transactionID;
-    private LogicalLogLocator lastLogLocator;
+    private TransactionSubsystem transactionSubsystem;
+    private LogicalLogLocator firstLogLocator;//firstLSN of the Job
+    private LogicalLogLocator lastLogLocator;//lastLSN of the Job
     private TransactionState txnState;
     private long startWaitTime;
     private int status;
     private Set<ICloseable> resources = new HashSet<ICloseable>();
     private TransactionType transactionType = TransactionType.READ;
+    private JobId jobId;
+
+    // List of indexes on which operations were performed on behalf of this transaction.
+    private final List<ILSMIndex> indexes = new ArrayList<ILSMIndex>();
+
+    // List of operation callbacks corresponding to the operand indexes. In particular, needed to track
+    // the number of active operations contributed by this transaction.
+    private final List<AbstractOperationCallback> callbacks = new ArrayList<AbstractOperationCallback>();
+
+    public TransactionContext(JobId jobId, TransactionSubsystem transactionSubsystem) throws ACIDException {
+        this.jobId = jobId;
+        this.transactionSubsystem = transactionSubsystem;
+        init();
+    }
+
+    private void init() throws ACIDException {
+        firstLogLocator = LogUtil.getDummyLogicalLogLocator(transactionSubsystem.getLogManager());
+        lastLogLocator = LogUtil.getDummyLogicalLogLocator(transactionSubsystem.getLogManager());
+        txnState = TransactionState.ACTIVE;
+        startWaitTime = INVALID_TIME;
+        status = ACTIVE_STATUS;
+    }
+
+    public void registerIndexAndCallback(ILSMIndex index, AbstractOperationCallback callback) {
+        synchronized (indexes) {
+            indexes.add(index);
+            callbacks.add(callback);
+        }
+    }
+
+    public void updateLastLSNForIndexes(long lastLSN) {
+        synchronized (indexes) {
+            for (ILSMIndex index : indexes) {
+                ((IndexOperationTracker) index.getOperationTracker()).updateLastLSN(lastLSN);
+            }
+        }
+    }
+
+    public void decreaseActiveTransactionCountOnIndexes() throws HyracksDataException {
+        synchronized (indexes) {
+            for (int i = 0; i < indexes.size(); i++) {
+                ILSMIndex index = indexes.get(i);
+                IModificationOperationCallback modificationCallback = (IModificationOperationCallback) callbacks.get(i);
+                ((IndexOperationTracker) index.getOperationTracker()).completeOperation(LSMOperationType.MODIFICATION,
+                        null, modificationCallback);
+            }
+        }
+    }
 
     public void setTransactionType(TransactionType transactionType) {
         this.transactionType = transactionType;
@@ -65,29 +122,23 @@
         resources.add(resource);
     }
 
-    public TransactionContext(long transactionId, TransactionProvider transactionProvider) throws ACIDException {
-        this.transactionID = transactionId;
-        this.transactionProvider = transactionProvider;
-        init();
-    }
-
-    private void init() throws ACIDException {
-        lastLogLocator = LogUtil.getDummyLogicalLogLocator(transactionProvider.getLogManager());
-        txnState = TransactionState.ACTIVE;
-        startWaitTime = INVALID_TIME;
-        status = ACTIVE_STATUS;
+    public LogicalLogLocator getFirstLogLocator() {
+        return firstLogLocator;
     }
 
     public LogicalLogLocator getLastLogLocator() {
         return lastLogLocator;
     }
 
-    public void setLastLSN(LogicalLogLocator lastLogLocator) {
-        this.lastLogLocator = lastLogLocator;
+    public void setLastLSN(long lsn) {
+        if (firstLogLocator.getLsn() == -1) {
+            firstLogLocator.setLsn(lsn);
+        }
+        lastLogLocator.setLsn(lsn);
     }
 
-    public long getTransactionID() {
-        return transactionID;
+    public JobId getJobId() {
+        return jobId;
     }
 
     public void setStartWaitTime(long time) {
@@ -119,5 +170,14 @@
             closeable.close(this);
         }
     }
+    
+    @Override
+    public int hashCode() {
+        return jobId.getId();
+    }
 
+    @Override
+    public boolean equals(Object o) {
+        return (o == this);
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionIDFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionIDFactory.java
deleted file mode 100644
index e5475f4..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionIDFactory.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.transaction.management.service.transaction;
-
-import java.util.concurrent.atomic.AtomicLong;
-
-/**
- * Represents a factory to generate unique transaction IDs.
- */
-public class TransactionIDFactory {
-    private static final AtomicLong ID = new AtomicLong();
-
-    public static long generateTransactionId() {
-        return ID.incrementAndGet();
-    }
-}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManagementConstants.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManagementConstants.java
index ad65973..3d25e54 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManagementConstants.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManagementConstants.java
@@ -27,7 +27,7 @@
 
     public static class LogManagerConstants {
         public static final String LOG_CONF_DIR = "log_conf";
-        public static final String LOG_CONF_FILE = "log.conf";
+        public static final String LOG_CONF_FILE = "log.properties";
         public static final String ASTERIX_CONF_DIR = "src/main/resources";
         public static final String ASTERIX_CONF_FILE = "test.properties";
         public static final String DEFAULT_LOG_DIR = "asterix_logs";
@@ -41,8 +41,10 @@
         public static final int[] LOCK_CONVERT_MATRIX = new int[] { 2, 0 };
 
         public static class LockMode {
-            public static final int SHARED = 0;
-            public static final int EXCLUSIVE = 1;
+            public static final byte S = 0;
+            public static final byte X = 1;
+            public static final byte IS = 2;
+            public static final byte IX = 3;
         }
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
index 8e7f26a..d3294d0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
@@ -16,12 +16,13 @@
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 /**
  * An implementation of the @see ITransactionManager interface that provides
@@ -29,15 +30,17 @@
  */
 public class TransactionManager implements ITransactionManager {
     private static final Logger LOGGER = Logger.getLogger(TransactionManager.class.getName());
-    private final TransactionProvider transactionProvider;
-    private Map<Long, TransactionContext> transactionContextRepository = new HashMap<Long, TransactionContext>();
+    private final TransactionSubsystem transactionProvider;
+    private Map<JobId, TransactionContext> transactionContextRepository = new HashMap<JobId, TransactionContext>();
+    private AtomicInteger maxJobId = new AtomicInteger(0);
 
-    public TransactionManager(TransactionProvider provider) {
+    public TransactionManager(TransactionSubsystem provider) {
         this.transactionProvider = provider;
     }
 
     @Override
-    public void abortTransaction(TransactionContext txnContext) throws ACIDException {
+    public void abortTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+            throws ACIDException {
         synchronized (txnContext) {
             if (txnContext.getTxnState().equals(TransactionState.ABORTED)) {
                 return;
@@ -50,88 +53,107 @@
                 if (LOGGER.isLoggable(Level.SEVERE)) {
                     LOGGER.severe(msg);
                 }
+                ae.printStackTrace();
                 throw new Error(msg);
             } finally {
                 txnContext.releaseResources();
                 transactionProvider.getLockManager().releaseLocks(txnContext);
-                transactionContextRepository.remove(txnContext.getTransactionID());
+                transactionContextRepository.remove(txnContext.getJobId());
                 txnContext.setTxnState(TransactionState.ABORTED);
             }
         }
     }
 
     @Override
-    public TransactionContext beginTransaction(long transactionId) throws ACIDException {
-        TransactionContext txnContext = new TransactionContext(transactionId, transactionProvider);
+    public TransactionContext beginTransaction(JobId jobId) throws ACIDException {
+        setMaxJobId(jobId.getId());
+        TransactionContext txnContext = new TransactionContext(jobId, transactionProvider);
         synchronized (this) {
-            transactionContextRepository.put(transactionId, txnContext);
+            transactionContextRepository.put(jobId, txnContext);
         }
         return txnContext;
     }
 
     @Override
-    public TransactionContext getTransactionContext(long transactionId) throws ACIDException {
+    public TransactionContext getTransactionContext(JobId jobId) throws ACIDException {
+        setMaxJobId(jobId.getId());
         synchronized (transactionContextRepository) {
-            TransactionContext context = transactionContextRepository.get(transactionId);
+
+            TransactionContext context = transactionContextRepository.get(jobId);
             if (context == null) {
-                context = transactionContextRepository.get(transactionId);
-                context = new TransactionContext(transactionId, transactionProvider);
-                transactionContextRepository.put(transactionId, context);
+                context = transactionContextRepository.get(jobId);
+                context = new TransactionContext(jobId, transactionProvider);
+                transactionContextRepository.put(jobId, context);
             }
             return context;
         }
     }
 
     @Override
-    public void commitTransaction(TransactionContext txnContext) throws ACIDException {
+    public void commitTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+            throws ACIDException {
         synchronized (txnContext) {
             if ((txnContext.getTxnState().equals(TransactionState.COMMITTED))) {
                 return;
             }
 
+            //There is either job-level commit or entity-level commit.
+            //The job-level commit will have -1 value both for datasetId and PKHashVal.
+
+            //for entity-level commit
+            if (PKHashVal != -1) {
+                transactionProvider.getLockManager().unlock(datasetId, PKHashVal, txnContext, true);
+                /*****************************
+                try {
+                    //decrease the transaction reference count on index
+                    txnContext.decreaseActiveTransactionCountOnIndexes();
+                } catch (HyracksDataException e) {
+                    throw new ACIDException("failed to complete index operation", e);
+                }
+                *****************************/
+                return;
+            }
+
+            //for job-level commit
             try {
-                if (txnContext.getTransactionType().equals(TransactionContext.TransactionType.READ_WRITE)) { // conditionally
-                    // write
-                    // commit
-                    // log
-                    // record
-                    transactionProvider.getLogManager().log(txnContext.getLastLogLocator(), txnContext, (byte) (-1), 0,
-                            LogType.COMMIT, LogActionType.NO_OP, 0, null, null);
+                if (txnContext.getTransactionType().equals(TransactionContext.TransactionType.READ_WRITE)) {
+                    transactionProvider.getLogManager().log(LogType.COMMIT, txnContext, -1, -1, -1, (byte) 0, 0, null,
+                            null, txnContext.getLastLogLocator());
                 }
             } catch (ACIDException ae) {
                 if (LOGGER.isLoggable(Level.SEVERE)) {
-                    LOGGER.severe(" caused exception in commit !" + txnContext.getTransactionID());
+                    LOGGER.severe(" caused exception in commit !" + txnContext.getJobId());
                 }
                 throw ae;
             } finally {
                 txnContext.releaseResources();
                 transactionProvider.getLockManager().releaseLocks(txnContext); // release
-                transactionContextRepository.remove(txnContext.getTransactionID());
+                transactionContextRepository.remove(txnContext.getJobId());
                 txnContext.setTxnState(TransactionState.COMMITTED);
             }
         }
     }
 
     @Override
-    public void joinTransaction(TransactionContext txnContext, byte[] resourceMgrID) throws ACIDException {
-        throw new UnsupportedOperationException();
-        // TODO this method will be implemented as part of support for
-        // distributed transactions
-
-    }
-
-    @Override
-    public void completedTransaction(TransactionContext txnContext, boolean success) throws ACIDException {
+    public void completedTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success)
+            throws ACIDException {
         if (!success) {
-            abortTransaction(txnContext);
+            abortTransaction(txnContext, datasetId, PKHashVal);
         } else {
-            commitTransaction(txnContext);
+            commitTransaction(txnContext, datasetId, PKHashVal);
         }
     }
 
     @Override
-    public TransactionProvider getTransactionProvider() {
+    public TransactionSubsystem getTransactionProvider() {
         return transactionProvider;
     }
-
+    
+    public void setMaxJobId(int jobId) {
+        maxJobId.set(Math.max(maxJobId.get(), jobId));
+    }
+    
+    public int getMaxJobId() {
+        return maxJobId.get();
+    }
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionProvider.java
deleted file mode 100644
index ede93a7..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionProvider.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.transaction.management.service.transaction;
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.locking.LockManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
-import edu.uci.ics.asterix.transaction.management.service.recovery.RecoveryManager;
-
-/**
- * Provider for all the sub-systems (transaction/lock/log/recovery) managers.
- * Users of transaction sub-systems must obtain them from the provider.
- */
-public class TransactionProvider {
-    private final String id;
-    private final ILogManager logManager;
-    private final ILockManager lockManager;
-    private final ITransactionManager transactionManager;
-    private final IRecoveryManager recoveryManager;
-
-    public TransactionProvider(String id) throws ACIDException {
-        this.id = id;
-        transactionManager = new TransactionManager(this);
-        logManager = new LogManager(this);
-        lockManager = new LockManager(this);
-        recoveryManager = new RecoveryManager(this);
-    }
-
-    public ILogManager getLogManager() {
-        return logManager;
-    }
-
-    public ILockManager getLockManager() {
-        return lockManager;
-    }
-
-    public ITransactionManager getTransactionManager() {
-        return transactionManager;
-    }
-
-    public IRecoveryManager getRecoveryManager() {
-        return recoveryManager;
-    }
-
-    public String getId() {
-        return id;
-    }
-
-}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java
new file mode 100644
index 0000000..c83b7bc
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceManagerRepository;
+import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.transaction.management.service.locking.LockManager;
+import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLoggerRepository;
+import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
+import edu.uci.ics.asterix.transaction.management.service.recovery.CheckpointThread;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
+import edu.uci.ics.asterix.transaction.management.service.recovery.RecoveryManager;
+
+/**
+ * Provider for all the sub-systems (transaction/lock/log/recovery) managers.
+ * Users of transaction sub-systems must obtain them from the provider.
+ */
+public class TransactionSubsystem {
+    private final String id;
+    private final ILogManager logManager;
+    private final ILockManager lockManager;
+    private final ITransactionManager transactionManager;
+    private final IRecoveryManager recoveryManager;
+    private final TransactionalResourceManagerRepository resourceRepository;
+    private final IndexLoggerRepository loggerRepository;
+    private final IAsterixAppRuntimeContextProvider asterixAppRuntimeContextProvider;
+    private final CheckpointThread checkpointThread;
+
+    public TransactionSubsystem(String id, IAsterixAppRuntimeContextProvider asterixAppRuntimeContextProvider)
+            throws ACIDException {
+        this.id = id;
+        this.transactionManager = new TransactionManager(this);
+        this.logManager = new LogManager(this);
+        this.lockManager = new LockManager(this);
+        this.recoveryManager = new RecoveryManager(this);
+        this.loggerRepository = new IndexLoggerRepository(this);
+        this.resourceRepository = new TransactionalResourceManagerRepository();
+        this.asterixAppRuntimeContextProvider = asterixAppRuntimeContextProvider;
+        if (asterixAppRuntimeContextProvider != null) {
+	        this.checkpointThread = new CheckpointThread(recoveryManager,
+	                asterixAppRuntimeContextProvider.getIndexLifecycleManager(), 0);
+        } else {
+        	this.checkpointThread = null;
+        }
+    }
+
+    public ILogManager getLogManager() {
+        return logManager;
+    }
+
+    public ILockManager getLockManager() {
+        return lockManager;
+    }
+
+    public ITransactionManager getTransactionManager() {
+        return transactionManager;
+    }
+
+    public IRecoveryManager getRecoveryManager() {
+        return recoveryManager;
+    }
+
+    public TransactionalResourceManagerRepository getTransactionalResourceRepository() {
+        return resourceRepository;
+    }
+
+    public IndexLoggerRepository getTreeLoggerRepository() {
+        return loggerRepository;
+    }
+
+    public IAsterixAppRuntimeContextProvider getAsterixAppRuntimeContextProvider() {
+        return asterixAppRuntimeContextProvider;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
index 3e95d6a..c9d01a0 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
@@ -14,12 +14,12 @@
  */
 package edu.uci.ics.asterix.transaction.management.logging;
 
-import java.util.Map;
 import java.util.Random;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.logging.IBuffer;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
@@ -29,7 +29,7 @@
     private static long count = 0;
 
     public void log(TransactionContext context, LogicalLogLocator wMemLSN, int length,
-            Map<Object, Object> loggerArguments) throws ACIDException {
+            ReusableLogContentObject reusableLogContentObject) throws ACIDException {
 
         byte[] logContent = getRandomBytes(length);
         try {
@@ -66,12 +66,12 @@
         return averageContentCreationTime;
     }
 
-    public void postLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
+    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
 
-    public void preLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
+    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
index 3a288a2..54ec036 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
@@ -18,20 +18,20 @@
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class RecoverySimulator {
 
     private static IRecoveryManager recoveryManager;
 
-    public static IRecoveryManager.SystemState startRecovery() throws IOException, ACIDException {
-        return recoveryManager.startRecovery(true);
+    public static void startRecovery() throws IOException, ACIDException {
+        recoveryManager.startRecovery(true);
     }
 
     public static void main(String args[]) throws IOException, ACIDException {
         String id = "nc1";
         try {
-            TransactionProvider factory = new TransactionProvider(id);
+            TransactionSubsystem factory = new TransactionSubsystem(id, null);
             IRecoveryManager recoveryManager = factory.getRecoveryManager();
             recoveryManager.startRecovery(true);
         } catch (ACIDException acide) {
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
index 40ee93f..dcd644d 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
@@ -20,7 +20,6 @@
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.logging.BasicLogger;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
 import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
@@ -28,16 +27,18 @@
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class TransactionWorkloadSimulator {
 
     public static ILogManager logManager;
     public static ILockManager lockManager;
-    TransactionProvider provider;
+    TransactionSubsystem provider;
 
     public static WorkloadProperties workload;
     Transaction[] transactions;
@@ -48,10 +49,10 @@
     }
 
     public void beginWorkload() throws ACIDException {
-        provider = new TransactionProvider("nc1");
+        provider = new TransactionSubsystem("nc1", null);
         logManager = provider.getLogManager();
         lockManager = provider.getLockManager();
-        TransactionalResourceRepository.registerTransactionalResourceManager(DummyResourceMgr.id,
+        provider.getTransactionalResourceRepository().registerTransactionalResourceManager(DummyResourceMgr.id,
                 new DummyResourceMgr());
         Transaction[] transactions = new Transaction[workload.numActiveThreads];
         long startTime = System.nanoTime();
@@ -67,7 +68,7 @@
         }
 
         for (int i = 0; i < workload.numActiveThreads; i++) {
-            provider.getTransactionManager().commitTransaction(transactions[i].getContext());
+            provider.getTransactionManager().commitTransaction(transactions[i].getContext(), new DatasetId(-1), -1);
         }
 
         long endTime = System.nanoTime();
@@ -97,9 +98,9 @@
 class SingleTransactionContextFactory {
     private static TransactionContext context;
 
-    public static TransactionContext getContext(TransactionProvider provider) throws ACIDException {
+    public static TransactionContext getContext(TransactionSubsystem provider) throws ACIDException {
         if (context == null) {
-            context = new TransactionContext(TransactionIDFactory.generateTransactionId(), provider);
+            context = new TransactionContext(JobIdFactory.generateJobId(), provider);
         }
         return context;
     }
@@ -107,8 +108,8 @@
 
 class MultipleTransactionContextFactory {
 
-    public static TransactionContext getContext(TransactionProvider provider) throws ACIDException {
-        return new TransactionContext(TransactionIDFactory.generateTransactionId(), provider);
+    public static TransactionContext getContext(TransactionSubsystem provider) throws ACIDException {
+        return new TransactionContext(JobIdFactory.generateJobId(), provider);
     }
 }
 
@@ -121,12 +122,14 @@
     LogicalLogLocator memLSN;
     String name;
     TransactionContext context;
-    private byte[] resourceID = new byte[1];
+    //private byte[] resourceID = new byte[1];
+    private int resourceID;
     private int myLogCount = 0;
-    private TransactionProvider transactionProvider;
+    private TransactionSubsystem transactionProvider;
     private ILogManager logManager;
+    private DatasetId tempDatasetId = new DatasetId(-1);
 
-    public Transaction(TransactionProvider provider, String name, boolean singleTransaction) throws ACIDException {
+    public Transaction(TransactionSubsystem provider, String name, boolean singleTransaction) throws ACIDException {
         this.name = name;
         this.transactionProvider = provider;
         if (singleTransaction) {
@@ -157,12 +160,12 @@
         }
         if (TransactionWorkloadSimulator.workload.singleResource) {
             int choice = random.nextInt(2);
-            resourceID[0] = (byte) (choice % 2);
+            resourceID = (byte) (choice % 2);
         } else {
-            random.nextBytes(resourceID);
+            random.nextInt(resourceID);
         }
         boolean retry = false;
-        int lockMode = -1;
+        byte lockMode = -1;
         try {
             for (int i = 0; i < numLogs - 1; i++) {
                 int logSize = TransactionWorkloadSimulator.workload.minLogSize
@@ -174,21 +177,18 @@
                 byte logActionType = LogActionType.REDO_UNDO;
                 long pageId = 0;
                 if (!retry) {
-                    lockMode = random.nextInt(2);
+                    lockMode = (byte)(random.nextInt(2));
                 }
-                boolean lockGranted = TransactionWorkloadSimulator.lockManager.lock(context, resourceID, lockMode);
-                if (!lockGranted) {
-                    retry = true;
-                    continue;
-                }
-                TransactionWorkloadSimulator.logManager.log(memLSN, context, ResourceMgrInfo.BTreeResourceMgrId,
-                        pageId, logType, logActionType, logSize, logger, null);
+                tempDatasetId.setId(resourceID);
+                TransactionWorkloadSimulator.lockManager.lock(tempDatasetId, -1, lockMode, context);
+                TransactionWorkloadSimulator.logManager.log(logType, context, resourceID,
+                        -1, resourceID, ResourceType.LSM_BTREE, logSize, null, logger, memLSN);
                 retry = false;
                 Thread.currentThread().sleep(TransactionWorkloadSimulator.workload.thinkTime);
                 logCount.incrementAndGet();
                 logByteCount.addAndGet(logSize
-                        + TransactionWorkloadSimulator.logManager.getLogManagerProperties().getLogHeaderSize()
-                        + TransactionWorkloadSimulator.logManager.getLogManagerProperties().getLogChecksumSize());
+                        + TransactionWorkloadSimulator.logManager.getLogRecordHelper().getLogHeaderSize(logType)
+                        + TransactionWorkloadSimulator.logManager.getLogRecordHelper().getLogChecksumSize());
                 myLogCount++;
             }
         } catch (ACIDException acide) {
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
index 16c5d6b..54bb0b8 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
@@ -14,11 +14,11 @@
  */
 package edu.uci.ics.asterix.transaction.management.test;
 
-import java.util.Map;
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
+import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
@@ -39,14 +39,14 @@
     }
 
     @Override
-    public void preLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
+    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
 
     @Override
-    public void log(TransactionContext context, final LogicalLogLocator memLSN, int logRecordSize,
-            Map<Object, Object> loggerArguments) throws ACIDException {
+    public void log(TransactionContext context, final LogicalLogLocator memLSN, int logContentSize,
+            ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         byte[] buffer = memLSN.getBuffer().getArray();
         byte[] content = logRecordContent.getBytes();
         for (int i = 0; i < resource.getId().length; i++) {
@@ -58,7 +58,7 @@
     }
 
     @Override
-    public void postLog(TransactionContext context, Map<Object, Object> loggerArguments) throws ACIDException {
+    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
index 899dbde..ad1238a 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
@@ -28,13 +28,13 @@
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.PhysicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class LogRecordReader {
 
     ILogManager logManager;
 
-    public LogRecordReader(TransactionProvider factory) throws ACIDException {
+    public LogRecordReader(TransactionSubsystem factory) throws ACIDException {
         logManager = factory.getLogManager();
     }
 
@@ -51,12 +51,12 @@
                 return true;
             }
         });
-        LogicalLogLocator memLSN = LogUtil.getDummyLogicalLogLocator(logManager);
+        LogicalLogLocator currentLogLocator = LogUtil.getDummyLogicalLogLocator(logManager);
         int logCount = 0;
         while (true) {
-            boolean logValidity = logCursor.next(memLSN);
+            boolean logValidity = logCursor.next(currentLogLocator);
             if (logValidity) {
-                System.out.println(++logCount + parser.getLogRecordForDisplay(memLSN));
+                System.out.println(++logCount + parser.getLogRecordForDisplay(currentLogLocator));
             } else {
                 break;
             }
@@ -64,7 +64,8 @@
     }
 
     public void readLogRecord(long lsnValue) throws IOException, ACIDException {
-        LogicalLogLocator memLSN = logManager.readLog(new PhysicalLogLocator(lsnValue, logManager));
+        LogicalLogLocator memLSN = null;
+        logManager.readLog(lsnValue, memLSN);
         System.out.println(logManager.getLogRecordHelper().getLogRecordForDisplay(memLSN));
     }
 
@@ -72,16 +73,9 @@
      * @param args
      */
     public static void main(String[] args) throws ACIDException, Exception {
-        long lsnValue = 10747454;
-        String id = "nc1";
-        String logDir = "/home/raman/research/work/hyracks-branches/svn/trunk/hyracks/asterix_logs/";
-        Properties props = new Properties();
-        props.setProperty(LogManagerProperties.LOG_DIR_KEY, logDir + "/" + id);
-        LogManagerProperties logProps = new LogManagerProperties(props);
-        LogManager logManager = new LogManager(null, logProps);
+        LogManager logManager = new LogManager(null, "nc1");
         LogRecordReader logReader = new LogRecordReader(logManager);
         logReader.readLogs(0);
-        //   logReader.readLogRecord(1703620);
     }
 
 }
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
index fb198fe..092f2ed 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
@@ -19,21 +19,22 @@
 
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceRepository;
 import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
 import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager.SystemState;
+import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class TransactionSimulator {
 
@@ -45,17 +46,17 @@
     private ILogger logger;
     private IResource resource;
     private LogicalLogLocator memLSN;
-    private TransactionProvider transactionProvider;
+    private TransactionSubsystem transactionProvider;
 
     public TransactionSimulator(IResource resource, IResourceManager resourceMgr) throws ACIDException {
         String id = "nc1";
-        transactionProvider = new TransactionProvider(id);
+        transactionProvider = new TransactionSubsystem(id, null);
         transactionManager = transactionProvider.getTransactionManager();
         logManager = transactionProvider.getLogManager();
         lockManager = transactionProvider.getLockManager();
         recoveryManager = transactionProvider.getRecoveryManager();
-        TransactionalResourceRepository.registerTransactionalResourceManager(resourceMgr.getResourceManagerId(),
-                resourceMgr);
+        transactionProvider.getTransactionalResourceRepository().registerTransactionalResourceManager(
+                resourceMgr.getResourceManagerId(), resourceMgr);
         this.resourceMgr = resourceMgr;
         this.logger = resource.getLogger();
         this.resource = resource;
@@ -63,8 +64,8 @@
     }
 
     public TransactionContext beginTransaction() throws ACIDException {
-        long transactionId = TransactionIDFactory.generateTransactionId();
-        return transactionManager.beginTransaction(transactionId);
+        JobId jobId = JobIdFactory.generateJobId();
+        return transactionManager.beginTransaction(jobId);
     }
 
     public void executeTransactionOperation(TransactionContext txnContext, FileResource.CounterOperation operation)
@@ -77,15 +78,13 @@
             case INCREMENT:
                 finalValue = currentValue + 1;
                 int logRecordLength = ((FileLogger) logger).generateLogRecordContent(currentValue, finalValue);
-                logManager.log(memLSN, txnContext, FileResourceManager.id, 0, LogType.UPDATE, LogActionType.REDO_UNDO,
-                        logRecordLength, logger, null);
+                logManager.log(LogType.UPDATE, txnContext, 1, -1, 1, ResourceType.LSM_BTREE, 0, null, logger, memLSN);
                 ((FileResource) resource).increment();
                 break;
             case DECREMENT:
                 finalValue = currentValue - 1;
                 logRecordLength = ((FileLogger) logger).generateLogRecordContent(currentValue, finalValue);
-                logManager.log(memLSN, txnContext, FileResourceManager.id, 0, LogType.UPDATE, LogActionType.REDO_UNDO,
-                        logRecordLength, logger, null);
+                logManager.log(LogType.UPDATE, txnContext, 1, -1, 1, ResourceType.LSM_BTREE, 0, null, logger, memLSN);
                 ((FileResource) resource).decrement();
                 break;
         }
@@ -93,13 +92,12 @@
     }
 
     public void commitTransaction(TransactionContext context) throws ACIDException {
-        transactionManager.commitTransaction(context);
+        transactionManager.commitTransaction(context, new DatasetId(-1), -1);
     }
 
-    public SystemState recover() throws ACIDException, IOException {
-        SystemState state = recoveryManager.startRecovery(true);
+    public void recover() throws ACIDException, IOException {
+        recoveryManager.startRecovery(true);
         ((FileResource) resource).sync();
-        return state;
     }
 
     /**
@@ -126,8 +124,7 @@
         }
 
         int finalExpectedValue = existingValue + schedule.getDeltaChange();
-        SystemState state = txnSimulator.recover();
-        System.out.println(" State is " + state);
+        txnSimulator.recover();
         boolean isCorrect = ((FileResource) resource).checkIfValueInSync(finalExpectedValue);
         System.out.println(" Did recovery happen correctly " + isCorrect);
     }
diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..22b2f30
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,75 @@
+<project>
+    <target name="instrument">
+        <antcall target="instrumentAModule">
+            <param name="module" value="asterix-aql"/>
+            <param name="module" value="asterix-om"/>
+            <param name="module" value="asterix-metadata"/>
+            <param name="module" value="asterix-tools"/>
+            <param name="module" value="asterix-common"/>
+            <param name="module" value="asterix-transactions"/>
+        </antcall>
+    </target>
+
+    <target name="report" depends="merge">
+        <property name="src.dir" value="src/main/java/"/>
+        <cobertura-report datafile="sum.ser"
+                          format="html"
+                          destdir="./target/report">
+            <!-- Add all modules that should be included below -->
+            <!-- fileset dir="./MODULE_NAME_TO_REPLACE/${src.dir}"/ -->
+            <fileset dir="./asterix-aql/${src.dir}"/>
+            <fileset dir="./asterix-om/${src.dir}"/>
+            <fileset dir="./asterix-metadata/${src.dir}"/>
+            <fileset dir="./asterix-tools/${src.dir}"/>
+            <fileset dir="./asterix-common/${src.dir}"/>
+            <fileset dir="./asterix-runtime/${src.dir}"/>
+            <fileset dir="./asterix-transactions/${src.dir}"/>
+        </cobertura-report>
+    </target>
+
+    <target name="merge">
+        <cobertura-merge datafile="sum.ser">
+            <fileset dir=".">
+                <include name="**/cobertura.ser"/>
+            </fileset>
+        </cobertura-merge>
+    </target>
+
+    <target name="instrumentAModule">
+        <property name="classes.dir" value="target/classes"/>
+        <cobertura-instrument todir="./${module}/${classes.dir}">
+            <fileset dir="./asterix-aql/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-om/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-metadata/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-tools/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-common/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-runtime/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+            <fileset dir="./asterix-transactions/target/classes">
+                <include name="**/*.class"/>
+            </fileset>
+        </cobertura-instrument>
+    </target>
+
+<property environment="env"/>
+    <property name="COBERTURA_HOME" value="../../.m2/repository/net/sourceforge/cobertura/cobertura/1.9.4.1"/>
+    <property name="cobertura.dir" value="${COBERTURA_HOME}"/>
+    <path id="cobertura.classpath">
+        <fileset dir="${cobertura.dir}">
+            <include name="cobertura.jar"/>
+            <include name="lib/**/*.jar"/>
+        </fileset>
+    </path>
+    <taskdef classpathref="cobertura.classpath" resource="tasks.properties"/>
+</project>
diff --git a/pom.xml b/pom.xml
index 35c6bc4..2c4f0d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,6 +6,11 @@
 	<version>0.0.4-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
+    <properties>
+    	<algebricks.version>0.2.4</algebricks.version>
+    	<hyracks.version>0.2.4</hyracks.version>
+    </properties>
+
 	<build>
 		<plugins>
 			<plugin>
@@ -74,10 +79,13 @@
 		<module>asterix-runtime</module>
 		<module>asterix-om</module>
 		<module>asterix-aql</module>
-                <module>asterix-hyracks-glue</module>
                 <module>asterix-external-data</module>
                 <module>asterix-metadata</module>
-                <module>asterix-dist</module>
+                <module>asterix-test-framework</module>
+                <module>asterix-maven-plugins</module>
+                <module>asterix-server</module>
+                <module>asterix-installer</module>
+                <module>asterix-events</module>
         </modules>
 
 	<repositories>
@@ -128,5 +136,103 @@
 			<url>http://obelix.ics.uci.edu/nexus/content/repositories/algebricks-snapshots/</url>
 		</repository>
 	</repositories>
-
+    <dependencies>
+        <dependency>
+            <groupId>net.sourceforge.cobertura</groupId>
+            <artifactId>cobertura</artifactId>
+            <version>1.9.4</version>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+        <dependencyManagement>
+    	<dependencies>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>algebricks-compiler</artifactId>
+    			<version>${algebricks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-api</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-dataflow-std</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-control-cc</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-control-nc</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-server</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-cli</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-dataflow-hadoop</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-storage-am-btree</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-storage-am-rtree</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>
+    				hyracks-storage-am-invertedindex
+    			</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+    		<dependency>
+    			<groupId>edu.uci.ics.hyracks</groupId>
+    			<artifactId>hyracks-storage-am-common</artifactId>
+    			<version>${hyracks.version}</version>
+    		</dependency>
+		    <dependency>
+                <groupId>edu.uci.ics.hyracks</groupId>
+                <artifactId>hyracks-client</artifactId>
+                <version>${hyracks.version}</version>
+            </dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-common</artifactId>
+			<version>${hyracks.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-btree</artifactId>
+			<version>${hyracks.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
+			<version>${hyracks.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
+			<version>${hyracks.version}</version>
+		</dependency>
+    	</dependencies>
+    </dependencyManagement>
 </project>